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diff --git a/frontend-old/node_modules/@firebase/storage/README.md b/frontend-old/node_modules/@firebase/storage/README.md
new file mode 100644
index 0000000..7c1c82b
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/README.md
@@ -0,0 +1,5 @@
+# @firebase/storage
+
+This is the Cloud Storage component of the Firebase JS SDK.
+
+**This package is not intended for direct usage, and should only be used via the officially supported [firebase](https://www.npmjs.com/package/firebase) package.**
diff --git a/frontend-old/node_modules/@firebase/storage/dist/index.browser.cjs.js b/frontend-old/node_modules/@firebase/storage/dist/index.browser.cjs.js
new file mode 100644
index 0000000..4653254
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/index.browser.cjs.js
@@ -0,0 +1,3685 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+var app = require('@firebase/app');
+var util = require('@firebase/util');
+var component = require('@firebase/component');
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Constants used in the Firebase Storage library.
+ */
+/**
+ * Domain name for firebase storage.
+ */
+const DEFAULT_HOST = 'firebasestorage.googleapis.com';
+/**
+ * The key in Firebase config json for the storage bucket.
+ */
+const CONFIG_STORAGE_BUCKET_KEY = 'storageBucket';
+/**
+ * 2 minutes
+ *
+ * The timeout for all operations except upload.
+ */
+const DEFAULT_MAX_OPERATION_RETRY_TIME = 2 * 60 * 1000;
+/**
+ * 10 minutes
+ *
+ * The timeout for upload.
+ */
+const DEFAULT_MAX_UPLOAD_RETRY_TIME = 10 * 60 * 1000;
+/**
+ * 1 second
+ */
+const DEFAULT_MIN_SLEEP_TIME_MILLIS = 1000;
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * An error returned by the Firebase Storage SDK.
+ * @public
+ */
+class StorageError extends util.FirebaseError {
+    /**
+     * @param code - A `StorageErrorCode` string to be prefixed with 'storage/' and
+     *  added to the end of the message.
+     * @param message  - Error message.
+     * @param status_ - Corresponding HTTP Status Code
+     */
+    constructor(code, message, status_ = 0) {
+        super(prependCode(code), `Firebase Storage: ${message} (${prependCode(code)})`);
+        this.status_ = status_;
+        /**
+         * Stores custom error data unique to the `StorageError`.
+         */
+        this.customData = { serverResponse: null };
+        this._baseMessage = this.message;
+        // Without this, `instanceof StorageError`, in tests for example,
+        // returns false.
+        Object.setPrototypeOf(this, StorageError.prototype);
+    }
+    get status() {
+        return this.status_;
+    }
+    set status(status) {
+        this.status_ = status;
+    }
+    /**
+     * Compares a `StorageErrorCode` against this error's code, filtering out the prefix.
+     */
+    _codeEquals(code) {
+        return prependCode(code) === this.code;
+    }
+    /**
+     * Optional response message that was added by the server.
+     */
+    get serverResponse() {
+        return this.customData.serverResponse;
+    }
+    set serverResponse(serverResponse) {
+        this.customData.serverResponse = serverResponse;
+        if (this.customData.serverResponse) {
+            this.message = `${this._baseMessage}\n${this.customData.serverResponse}`;
+        }
+        else {
+            this.message = this._baseMessage;
+        }
+    }
+}
+/**
+ * @public
+ * Error codes that can be attached to `StorageError` objects.
+ */
+exports.StorageErrorCode = void 0;
+(function (StorageErrorCode) {
+    // Shared between all platforms
+    StorageErrorCode["UNKNOWN"] = "unknown";
+    StorageErrorCode["OBJECT_NOT_FOUND"] = "object-not-found";
+    StorageErrorCode["BUCKET_NOT_FOUND"] = "bucket-not-found";
+    StorageErrorCode["PROJECT_NOT_FOUND"] = "project-not-found";
+    StorageErrorCode["QUOTA_EXCEEDED"] = "quota-exceeded";
+    StorageErrorCode["UNAUTHENTICATED"] = "unauthenticated";
+    StorageErrorCode["UNAUTHORIZED"] = "unauthorized";
+    StorageErrorCode["UNAUTHORIZED_APP"] = "unauthorized-app";
+    StorageErrorCode["RETRY_LIMIT_EXCEEDED"] = "retry-limit-exceeded";
+    StorageErrorCode["INVALID_CHECKSUM"] = "invalid-checksum";
+    StorageErrorCode["CANCELED"] = "canceled";
+    // JS specific
+    StorageErrorCode["INVALID_EVENT_NAME"] = "invalid-event-name";
+    StorageErrorCode["INVALID_URL"] = "invalid-url";
+    StorageErrorCode["INVALID_DEFAULT_BUCKET"] = "invalid-default-bucket";
+    StorageErrorCode["NO_DEFAULT_BUCKET"] = "no-default-bucket";
+    StorageErrorCode["CANNOT_SLICE_BLOB"] = "cannot-slice-blob";
+    StorageErrorCode["SERVER_FILE_WRONG_SIZE"] = "server-file-wrong-size";
+    StorageErrorCode["NO_DOWNLOAD_URL"] = "no-download-url";
+    StorageErrorCode["INVALID_ARGUMENT"] = "invalid-argument";
+    StorageErrorCode["INVALID_ARGUMENT_COUNT"] = "invalid-argument-count";
+    StorageErrorCode["APP_DELETED"] = "app-deleted";
+    StorageErrorCode["INVALID_ROOT_OPERATION"] = "invalid-root-operation";
+    StorageErrorCode["INVALID_FORMAT"] = "invalid-format";
+    StorageErrorCode["INTERNAL_ERROR"] = "internal-error";
+    StorageErrorCode["UNSUPPORTED_ENVIRONMENT"] = "unsupported-environment";
+})(exports.StorageErrorCode || (exports.StorageErrorCode = {}));
+function prependCode(code) {
+    return 'storage/' + code;
+}
+function unknown() {
+    const message = 'An unknown error occurred, please check the error payload for ' +
+        'server response.';
+    return new StorageError(exports.StorageErrorCode.UNKNOWN, message);
+}
+function objectNotFound(path) {
+    return new StorageError(exports.StorageErrorCode.OBJECT_NOT_FOUND, "Object '" + path + "' does not exist.");
+}
+function quotaExceeded(bucket) {
+    return new StorageError(exports.StorageErrorCode.QUOTA_EXCEEDED, "Quota for bucket '" +
+        bucket +
+        "' exceeded, please view quota on " +
+        'https://firebase.google.com/pricing/.');
+}
+function unauthenticated() {
+    const message = 'User is not authenticated, please authenticate using Firebase ' +
+        'Authentication and try again.';
+    return new StorageError(exports.StorageErrorCode.UNAUTHENTICATED, message);
+}
+function unauthorizedApp() {
+    return new StorageError(exports.StorageErrorCode.UNAUTHORIZED_APP, 'This app does not have permission to access Firebase Storage on this project.');
+}
+function unauthorized(path) {
+    return new StorageError(exports.StorageErrorCode.UNAUTHORIZED, "User does not have permission to access '" + path + "'.");
+}
+function retryLimitExceeded() {
+    return new StorageError(exports.StorageErrorCode.RETRY_LIMIT_EXCEEDED, 'Max retry time for operation exceeded, please try again.');
+}
+function canceled() {
+    return new StorageError(exports.StorageErrorCode.CANCELED, 'User canceled the upload/download.');
+}
+function invalidUrl(url) {
+    return new StorageError(exports.StorageErrorCode.INVALID_URL, "Invalid URL '" + url + "'.");
+}
+function invalidDefaultBucket(bucket) {
+    return new StorageError(exports.StorageErrorCode.INVALID_DEFAULT_BUCKET, "Invalid default bucket '" + bucket + "'.");
+}
+function noDefaultBucket() {
+    return new StorageError(exports.StorageErrorCode.NO_DEFAULT_BUCKET, 'No default bucket ' +
+        "found. Did you set the '" +
+        CONFIG_STORAGE_BUCKET_KEY +
+        "' property when initializing the app?");
+}
+function cannotSliceBlob() {
+    return new StorageError(exports.StorageErrorCode.CANNOT_SLICE_BLOB, 'Cannot slice blob for upload. Please retry the upload.');
+}
+function serverFileWrongSize() {
+    return new StorageError(exports.StorageErrorCode.SERVER_FILE_WRONG_SIZE, 'Server recorded incorrect upload file size, please retry the upload.');
+}
+function noDownloadURL() {
+    return new StorageError(exports.StorageErrorCode.NO_DOWNLOAD_URL, 'The given file does not have any download URLs.');
+}
+function missingPolyFill(polyFill) {
+    return new StorageError(exports.StorageErrorCode.UNSUPPORTED_ENVIRONMENT, `${polyFill} is missing. Make sure to install the required polyfills. See https://firebase.google.com/docs/web/environments-js-sdk#polyfills for more information.`);
+}
+/**
+ * @internal
+ */
+function invalidArgument(message) {
+    return new StorageError(exports.StorageErrorCode.INVALID_ARGUMENT, message);
+}
+function appDeleted() {
+    return new StorageError(exports.StorageErrorCode.APP_DELETED, 'The Firebase app was deleted.');
+}
+/**
+ * @param name - The name of the operation that was invalid.
+ *
+ * @internal
+ */
+function invalidRootOperation(name) {
+    return new StorageError(exports.StorageErrorCode.INVALID_ROOT_OPERATION, "The operation '" +
+        name +
+        "' cannot be performed on a root reference, create a non-root " +
+        "reference using child, such as .child('file.png').");
+}
+/**
+ * @param format - The format that was not valid.
+ * @param message - A message describing the format violation.
+ */
+function invalidFormat(format, message) {
+    return new StorageError(exports.StorageErrorCode.INVALID_FORMAT, "String does not match format '" + format + "': " + message);
+}
+/**
+ * @param message - A message describing the internal error.
+ */
+function internalError(message) {
+    throw new StorageError(exports.StorageErrorCode.INTERNAL_ERROR, 'Internal error: ' + message);
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Firebase Storage location data.
+ *
+ * @internal
+ */
+class Location {
+    constructor(bucket, path) {
+        this.bucket = bucket;
+        this.path_ = path;
+    }
+    get path() {
+        return this.path_;
+    }
+    get isRoot() {
+        return this.path.length === 0;
+    }
+    fullServerUrl() {
+        const encode = encodeURIComponent;
+        return '/b/' + encode(this.bucket) + '/o/' + encode(this.path);
+    }
+    bucketOnlyServerUrl() {
+        const encode = encodeURIComponent;
+        return '/b/' + encode(this.bucket) + '/o';
+    }
+    static makeFromBucketSpec(bucketString, host) {
+        let bucketLocation;
+        try {
+            bucketLocation = Location.makeFromUrl(bucketString, host);
+        }
+        catch (e) {
+            // Not valid URL, use as-is. This lets you put bare bucket names in
+            // config.
+            return new Location(bucketString, '');
+        }
+        if (bucketLocation.path === '') {
+            return bucketLocation;
+        }
+        else {
+            throw invalidDefaultBucket(bucketString);
+        }
+    }
+    static makeFromUrl(url, host) {
+        let location = null;
+        const bucketDomain = '([A-Za-z0-9.\\-_]+)';
+        function gsModify(loc) {
+            if (loc.path.charAt(loc.path.length - 1) === '/') {
+                loc.path_ = loc.path_.slice(0, -1);
+            }
+        }
+        const gsPath = '(/(.*))?$';
+        const gsRegex = new RegExp('^gs://' + bucketDomain + gsPath, 'i');
+        const gsIndices = { bucket: 1, path: 3 };
+        function httpModify(loc) {
+            loc.path_ = decodeURIComponent(loc.path);
+        }
+        const version = 'v[A-Za-z0-9_]+';
+        const firebaseStorageHost = host.replace(/[.]/g, '\\.');
+        const firebaseStoragePath = '(/([^?#]*).*)?$';
+        const firebaseStorageRegExp = new RegExp(`^https?://${firebaseStorageHost}/${version}/b/${bucketDomain}/o${firebaseStoragePath}`, 'i');
+        const firebaseStorageIndices = { bucket: 1, path: 3 };
+        const cloudStorageHost = host === DEFAULT_HOST
+            ? '(?:storage.googleapis.com|storage.cloud.google.com)'
+            : host;
+        const cloudStoragePath = '([^?#]*)';
+        const cloudStorageRegExp = new RegExp(`^https?://${cloudStorageHost}/${bucketDomain}/${cloudStoragePath}`, 'i');
+        const cloudStorageIndices = { bucket: 1, path: 2 };
+        const groups = [
+            { regex: gsRegex, indices: gsIndices, postModify: gsModify },
+            {
+                regex: firebaseStorageRegExp,
+                indices: firebaseStorageIndices,
+                postModify: httpModify
+            },
+            {
+                regex: cloudStorageRegExp,
+                indices: cloudStorageIndices,
+                postModify: httpModify
+            }
+        ];
+        for (let i = 0; i < groups.length; i++) {
+            const group = groups[i];
+            const captures = group.regex.exec(url);
+            if (captures) {
+                const bucketValue = captures[group.indices.bucket];
+                let pathValue = captures[group.indices.path];
+                if (!pathValue) {
+                    pathValue = '';
+                }
+                location = new Location(bucketValue, pathValue);
+                group.postModify(location);
+                break;
+            }
+        }
+        if (location == null) {
+            throw invalidUrl(url);
+        }
+        return location;
+    }
+}
+
+/**
+ * A request whose promise always fails.
+ */
+class FailRequest {
+    constructor(error) {
+        this.promise_ = Promise.reject(error);
+    }
+    /** @inheritDoc */
+    getPromise() {
+        return this.promise_;
+    }
+    /** @inheritDoc */
+    cancel(_appDelete = false) { }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Accepts a callback for an action to perform (`doRequest`),
+ * and then a callback for when the backoff has completed (`backoffCompleteCb`).
+ * The callback sent to start requires an argument to call (`onRequestComplete`).
+ * When `start` calls `doRequest`, it passes a callback for when the request has
+ * completed, `onRequestComplete`. Based on this, the backoff continues, with
+ * another call to `doRequest` and the above loop continues until the timeout
+ * is hit, or a successful response occurs.
+ * @description
+ * @param doRequest Callback to perform request
+ * @param backoffCompleteCb Callback to call when backoff has been completed
+ */
+function start(doRequest, 
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+backoffCompleteCb, timeout) {
+    // TODO(andysoto): make this code cleaner (probably refactor into an actual
+    // type instead of a bunch of functions with state shared in the closure)
+    let waitSeconds = 1;
+    // Would type this as "number" but that doesn't work for Node so ¯\_(ツ)_/¯
+    // TODO: find a way to exclude Node type definition for storage because storage only works in browser
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    let retryTimeoutId = null;
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    let globalTimeoutId = null;
+    let hitTimeout = false;
+    let cancelState = 0;
+    function canceled() {
+        return cancelState === 2;
+    }
+    let triggeredCallback = false;
+    function triggerCallback(...args) {
+        if (!triggeredCallback) {
+            triggeredCallback = true;
+            backoffCompleteCb.apply(null, args);
+        }
+    }
+    function callWithDelay(millis) {
+        retryTimeoutId = setTimeout(() => {
+            retryTimeoutId = null;
+            doRequest(responseHandler, canceled());
+        }, millis);
+    }
+    function clearGlobalTimeout() {
+        if (globalTimeoutId) {
+            clearTimeout(globalTimeoutId);
+        }
+    }
+    function responseHandler(success, ...args) {
+        if (triggeredCallback) {
+            clearGlobalTimeout();
+            return;
+        }
+        if (success) {
+            clearGlobalTimeout();
+            triggerCallback.call(null, success, ...args);
+            return;
+        }
+        const mustStop = canceled() || hitTimeout;
+        if (mustStop) {
+            clearGlobalTimeout();
+            triggerCallback.call(null, success, ...args);
+            return;
+        }
+        if (waitSeconds < 64) {
+            /* TODO(andysoto): don't back off so quickly if we know we're offline. */
+            waitSeconds *= 2;
+        }
+        let waitMillis;
+        if (cancelState === 1) {
+            cancelState = 2;
+            waitMillis = 0;
+        }
+        else {
+            waitMillis = (waitSeconds + Math.random()) * 1000;
+        }
+        callWithDelay(waitMillis);
+    }
+    let stopped = false;
+    function stop(wasTimeout) {
+        if (stopped) {
+            return;
+        }
+        stopped = true;
+        clearGlobalTimeout();
+        if (triggeredCallback) {
+            return;
+        }
+        if (retryTimeoutId !== null) {
+            if (!wasTimeout) {
+                cancelState = 2;
+            }
+            clearTimeout(retryTimeoutId);
+            callWithDelay(0);
+        }
+        else {
+            if (!wasTimeout) {
+                cancelState = 1;
+            }
+        }
+    }
+    callWithDelay(0);
+    globalTimeoutId = setTimeout(() => {
+        hitTimeout = true;
+        stop(true);
+    }, timeout);
+    return stop;
+}
+/**
+ * Stops the retry loop from repeating.
+ * If the function is currently "in between" retries, it is invoked immediately
+ * with the second parameter as "true". Otherwise, it will be invoked once more
+ * after the current invocation finishes iff the current invocation would have
+ * triggered another retry.
+ */
+function stop(id) {
+    id(false);
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+function isJustDef(p) {
+    return p !== void 0;
+}
+// eslint-disable-next-line @typescript-eslint/ban-types
+function isFunction(p) {
+    return typeof p === 'function';
+}
+function isNonArrayObject(p) {
+    return typeof p === 'object' && !Array.isArray(p);
+}
+function isString(p) {
+    return typeof p === 'string' || p instanceof String;
+}
+function isNativeBlob(p) {
+    return isNativeBlobDefined() && p instanceof Blob;
+}
+function isNativeBlobDefined() {
+    return typeof Blob !== 'undefined';
+}
+function validateNumber(argument, minValue, maxValue, value) {
+    if (value < minValue) {
+        throw invalidArgument(`Invalid value for '${argument}'. Expected ${minValue} or greater.`);
+    }
+    if (value > maxValue) {
+        throw invalidArgument(`Invalid value for '${argument}'. Expected ${maxValue} or less.`);
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+function makeUrl(urlPart, host, protocol) {
+    let origin = host;
+    if (protocol == null) {
+        origin = `https://${host}`;
+    }
+    return `${protocol}://${origin}/v0${urlPart}`;
+}
+function makeQueryString(params) {
+    const encode = encodeURIComponent;
+    let queryPart = '?';
+    for (const key in params) {
+        if (params.hasOwnProperty(key)) {
+            const nextPart = encode(key) + '=' + encode(params[key]);
+            queryPart = queryPart + nextPart + '&';
+        }
+    }
+    // Chop off the extra '&' or '?' on the end
+    queryPart = queryPart.slice(0, -1);
+    return queryPart;
+}
+
+/**
+ * Error codes for requests made by the XhrIo wrapper.
+ */
+var ErrorCode;
+(function (ErrorCode) {
+    ErrorCode[ErrorCode["NO_ERROR"] = 0] = "NO_ERROR";
+    ErrorCode[ErrorCode["NETWORK_ERROR"] = 1] = "NETWORK_ERROR";
+    ErrorCode[ErrorCode["ABORT"] = 2] = "ABORT";
+})(ErrorCode || (ErrorCode = {}));
+
+/**
+ * @license
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Checks the status code to see if the action should be retried.
+ *
+ * @param status Current HTTP status code returned by server.
+ * @param additionalRetryCodes additional retry codes to check against
+ */
+function isRetryStatusCode(status, additionalRetryCodes) {
+    // The codes for which to retry came from this page:
+    // https://cloud.google.com/storage/docs/exponential-backoff
+    const isFiveHundredCode = status >= 500 && status < 600;
+    const extraRetryCodes = [
+        // Request Timeout: web server didn't receive full request in time.
+        408,
+        // Too Many Requests: you're getting rate-limited, basically.
+        429
+    ];
+    const isExtraRetryCode = extraRetryCodes.indexOf(status) !== -1;
+    const isAdditionalRetryCode = additionalRetryCodes.indexOf(status) !== -1;
+    return isFiveHundredCode || isExtraRetryCode || isAdditionalRetryCode;
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Handles network logic for all Storage Requests, including error reporting and
+ * retries with backoff.
+ *
+ * @param I - the type of the backend's network response.
+ * @param - O the output type used by the rest of the SDK. The conversion
+ * happens in the specified `callback_`.
+ */
+class NetworkRequest {
+    constructor(url_, method_, headers_, body_, successCodes_, additionalRetryCodes_, callback_, errorCallback_, timeout_, progressCallback_, connectionFactory_, retry = true, isUsingEmulator = false) {
+        this.url_ = url_;
+        this.method_ = method_;
+        this.headers_ = headers_;
+        this.body_ = body_;
+        this.successCodes_ = successCodes_;
+        this.additionalRetryCodes_ = additionalRetryCodes_;
+        this.callback_ = callback_;
+        this.errorCallback_ = errorCallback_;
+        this.timeout_ = timeout_;
+        this.progressCallback_ = progressCallback_;
+        this.connectionFactory_ = connectionFactory_;
+        this.retry = retry;
+        this.isUsingEmulator = isUsingEmulator;
+        this.pendingConnection_ = null;
+        this.backoffId_ = null;
+        this.canceled_ = false;
+        this.appDelete_ = false;
+        this.promise_ = new Promise((resolve, reject) => {
+            this.resolve_ = resolve;
+            this.reject_ = reject;
+            this.start_();
+        });
+    }
+    /**
+     * Actually starts the retry loop.
+     */
+    start_() {
+        const doTheRequest = (backoffCallback, canceled) => {
+            if (canceled) {
+                backoffCallback(false, new RequestEndStatus(false, null, true));
+                return;
+            }
+            const connection = this.connectionFactory_();
+            this.pendingConnection_ = connection;
+            const progressListener = progressEvent => {
+                const loaded = progressEvent.loaded;
+                const total = progressEvent.lengthComputable ? progressEvent.total : -1;
+                if (this.progressCallback_ !== null) {
+                    this.progressCallback_(loaded, total);
+                }
+            };
+            if (this.progressCallback_ !== null) {
+                connection.addUploadProgressListener(progressListener);
+            }
+            // connection.send() never rejects, so we don't need to have a error handler or use catch on the returned promise.
+            // eslint-disable-next-line @typescript-eslint/no-floating-promises
+            connection
+                .send(this.url_, this.method_, this.isUsingEmulator, this.body_, this.headers_)
+                .then(() => {
+                if (this.progressCallback_ !== null) {
+                    connection.removeUploadProgressListener(progressListener);
+                }
+                this.pendingConnection_ = null;
+                const hitServer = connection.getErrorCode() === ErrorCode.NO_ERROR;
+                const status = connection.getStatus();
+                if (!hitServer ||
+                    (isRetryStatusCode(status, this.additionalRetryCodes_) &&
+                        this.retry)) {
+                    const wasCanceled = connection.getErrorCode() === ErrorCode.ABORT;
+                    backoffCallback(false, new RequestEndStatus(false, null, wasCanceled));
+                    return;
+                }
+                const successCode = this.successCodes_.indexOf(status) !== -1;
+                backoffCallback(true, new RequestEndStatus(successCode, connection));
+            });
+        };
+        /**
+         * @param requestWentThrough - True if the request eventually went
+         *     through, false if it hit the retry limit or was canceled.
+         */
+        const backoffDone = (requestWentThrough, status) => {
+            const resolve = this.resolve_;
+            const reject = this.reject_;
+            const connection = status.connection;
+            if (status.wasSuccessCode) {
+                try {
+                    const result = this.callback_(connection, connection.getResponse());
+                    if (isJustDef(result)) {
+                        resolve(result);
+                    }
+                    else {
+                        resolve();
+                    }
+                }
+                catch (e) {
+                    reject(e);
+                }
+            }
+            else {
+                if (connection !== null) {
+                    const err = unknown();
+                    err.serverResponse = connection.getErrorText();
+                    if (this.errorCallback_) {
+                        reject(this.errorCallback_(connection, err));
+                    }
+                    else {
+                        reject(err);
+                    }
+                }
+                else {
+                    if (status.canceled) {
+                        const err = this.appDelete_ ? appDeleted() : canceled();
+                        reject(err);
+                    }
+                    else {
+                        const err = retryLimitExceeded();
+                        reject(err);
+                    }
+                }
+            }
+        };
+        if (this.canceled_) {
+            backoffDone(false, new RequestEndStatus(false, null, true));
+        }
+        else {
+            this.backoffId_ = start(doTheRequest, backoffDone, this.timeout_);
+        }
+    }
+    /** @inheritDoc */
+    getPromise() {
+        return this.promise_;
+    }
+    /** @inheritDoc */
+    cancel(appDelete) {
+        this.canceled_ = true;
+        this.appDelete_ = appDelete || false;
+        if (this.backoffId_ !== null) {
+            stop(this.backoffId_);
+        }
+        if (this.pendingConnection_ !== null) {
+            this.pendingConnection_.abort();
+        }
+    }
+}
+/**
+ * A collection of information about the result of a network request.
+ * @param opt_canceled - Defaults to false.
+ */
+class RequestEndStatus {
+    constructor(wasSuccessCode, connection, canceled) {
+        this.wasSuccessCode = wasSuccessCode;
+        this.connection = connection;
+        this.canceled = !!canceled;
+    }
+}
+function addAuthHeader_(headers, authToken) {
+    if (authToken !== null && authToken.length > 0) {
+        headers['Authorization'] = 'Firebase ' + authToken;
+    }
+}
+function addVersionHeader_(headers, firebaseVersion) {
+    headers['X-Firebase-Storage-Version'] =
+        'webjs/' + (firebaseVersion ?? 'AppManager');
+}
+function addGmpidHeader_(headers, appId) {
+    if (appId) {
+        headers['X-Firebase-GMPID'] = appId;
+    }
+}
+function addAppCheckHeader_(headers, appCheckToken) {
+    if (appCheckToken !== null) {
+        headers['X-Firebase-AppCheck'] = appCheckToken;
+    }
+}
+function makeRequest(requestInfo, appId, authToken, appCheckToken, requestFactory, firebaseVersion, retry = true, isUsingEmulator = false) {
+    const queryPart = makeQueryString(requestInfo.urlParams);
+    const url = requestInfo.url + queryPart;
+    const headers = Object.assign({}, requestInfo.headers);
+    addGmpidHeader_(headers, appId);
+    addAuthHeader_(headers, authToken);
+    addVersionHeader_(headers, firebaseVersion);
+    addAppCheckHeader_(headers, appCheckToken);
+    return new NetworkRequest(url, requestInfo.method, headers, requestInfo.body, requestInfo.successCodes, requestInfo.additionalRetryCodes, requestInfo.handler, requestInfo.errorHandler, requestInfo.timeout, requestInfo.progressCallback, requestFactory, retry, isUsingEmulator);
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+function getBlobBuilder() {
+    if (typeof BlobBuilder !== 'undefined') {
+        return BlobBuilder;
+    }
+    else if (typeof WebKitBlobBuilder !== 'undefined') {
+        return WebKitBlobBuilder;
+    }
+    else {
+        return undefined;
+    }
+}
+/**
+ * Concatenates one or more values together and converts them to a Blob.
+ *
+ * @param args The values that will make up the resulting blob.
+ * @return The blob.
+ */
+function getBlob$1(...args) {
+    const BlobBuilder = getBlobBuilder();
+    if (BlobBuilder !== undefined) {
+        const bb = new BlobBuilder();
+        for (let i = 0; i < args.length; i++) {
+            bb.append(args[i]);
+        }
+        return bb.getBlob();
+    }
+    else {
+        if (isNativeBlobDefined()) {
+            return new Blob(args);
+        }
+        else {
+            throw new StorageError(exports.StorageErrorCode.UNSUPPORTED_ENVIRONMENT, "This browser doesn't seem to support creating Blobs");
+        }
+    }
+}
+/**
+ * Slices the blob. The returned blob contains data from the start byte
+ * (inclusive) till the end byte (exclusive). Negative indices cannot be used.
+ *
+ * @param blob The blob to be sliced.
+ * @param start Index of the starting byte.
+ * @param end Index of the ending byte.
+ * @return The blob slice or null if not supported.
+ */
+function sliceBlob(blob, start, end) {
+    if (blob.webkitSlice) {
+        return blob.webkitSlice(start, end);
+    }
+    else if (blob.mozSlice) {
+        return blob.mozSlice(start, end);
+    }
+    else if (blob.slice) {
+        return blob.slice(start, end);
+    }
+    return null;
+}
+
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/** Converts a Base64 encoded string to a binary string. */
+function decodeBase64(encoded) {
+    if (typeof atob === 'undefined') {
+        throw missingPolyFill('base-64');
+    }
+    return atob(encoded);
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * An enumeration of the possible string formats for upload.
+ * @public
+ */
+const StringFormat = {
+    /**
+     * Indicates the string should be interpreted "raw", that is, as normal text.
+     * The string will be interpreted as UTF-16, then uploaded as a UTF-8 byte
+     * sequence.
+     * Example: The string 'Hello! \\ud83d\\ude0a' becomes the byte sequence
+     * 48 65 6c 6c 6f 21 20 f0 9f 98 8a
+     */
+    RAW: 'raw',
+    /**
+     * Indicates the string should be interpreted as base64-encoded data.
+     * Padding characters (trailing '='s) are optional.
+     * Example: The string 'rWmO++E6t7/rlw==' becomes the byte sequence
+     * ad 69 8e fb e1 3a b7 bf eb 97
+     */
+    BASE64: 'base64',
+    /**
+     * Indicates the string should be interpreted as base64url-encoded data.
+     * Padding characters (trailing '='s) are optional.
+     * Example: The string 'rWmO--E6t7_rlw==' becomes the byte sequence
+     * ad 69 8e fb e1 3a b7 bf eb 97
+     */
+    BASE64URL: 'base64url',
+    /**
+     * Indicates the string is a data URL, such as one obtained from
+     * canvas.toDataURL().
+     * Example: the string 'data:application/octet-stream;base64,aaaa'
+     * becomes the byte sequence
+     * 69 a6 9a
+     * (the content-type "application/octet-stream" is also applied, but can
+     * be overridden in the metadata object).
+     */
+    DATA_URL: 'data_url'
+};
+class StringData {
+    constructor(data, contentType) {
+        this.data = data;
+        this.contentType = contentType || null;
+    }
+}
+/**
+ * @internal
+ */
+function dataFromString(format, stringData) {
+    switch (format) {
+        case StringFormat.RAW:
+            return new StringData(utf8Bytes_(stringData));
+        case StringFormat.BASE64:
+        case StringFormat.BASE64URL:
+            return new StringData(base64Bytes_(format, stringData));
+        case StringFormat.DATA_URL:
+            return new StringData(dataURLBytes_(stringData), dataURLContentType_(stringData));
+        // do nothing
+    }
+    // assert(false);
+    throw unknown();
+}
+function utf8Bytes_(value) {
+    const b = [];
+    for (let i = 0; i < value.length; i++) {
+        let c = value.charCodeAt(i);
+        if (c <= 127) {
+            b.push(c);
+        }
+        else {
+            if (c <= 2047) {
+                b.push(192 | (c >> 6), 128 | (c & 63));
+            }
+            else {
+                if ((c & 64512) === 55296) {
+                    // The start of a surrogate pair.
+                    const valid = i < value.length - 1 && (value.charCodeAt(i + 1) & 64512) === 56320;
+                    if (!valid) {
+                        // The second surrogate wasn't there.
+                        b.push(239, 191, 189);
+                    }
+                    else {
+                        const hi = c;
+                        const lo = value.charCodeAt(++i);
+                        c = 65536 | ((hi & 1023) << 10) | (lo & 1023);
+                        b.push(240 | (c >> 18), 128 | ((c >> 12) & 63), 128 | ((c >> 6) & 63), 128 | (c & 63));
+                    }
+                }
+                else {
+                    if ((c & 64512) === 56320) {
+                        // Invalid low surrogate.
+                        b.push(239, 191, 189);
+                    }
+                    else {
+                        b.push(224 | (c >> 12), 128 | ((c >> 6) & 63), 128 | (c & 63));
+                    }
+                }
+            }
+        }
+    }
+    return new Uint8Array(b);
+}
+function percentEncodedBytes_(value) {
+    let decoded;
+    try {
+        decoded = decodeURIComponent(value);
+    }
+    catch (e) {
+        throw invalidFormat(StringFormat.DATA_URL, 'Malformed data URL.');
+    }
+    return utf8Bytes_(decoded);
+}
+function base64Bytes_(format, value) {
+    switch (format) {
+        case StringFormat.BASE64: {
+            const hasMinus = value.indexOf('-') !== -1;
+            const hasUnder = value.indexOf('_') !== -1;
+            if (hasMinus || hasUnder) {
+                const invalidChar = hasMinus ? '-' : '_';
+                throw invalidFormat(format, "Invalid character '" +
+                    invalidChar +
+                    "' found: is it base64url encoded?");
+            }
+            break;
+        }
+        case StringFormat.BASE64URL: {
+            const hasPlus = value.indexOf('+') !== -1;
+            const hasSlash = value.indexOf('/') !== -1;
+            if (hasPlus || hasSlash) {
+                const invalidChar = hasPlus ? '+' : '/';
+                throw invalidFormat(format, "Invalid character '" + invalidChar + "' found: is it base64 encoded?");
+            }
+            value = value.replace(/-/g, '+').replace(/_/g, '/');
+            break;
+        }
+        // do nothing
+    }
+    let bytes;
+    try {
+        bytes = decodeBase64(value);
+    }
+    catch (e) {
+        if (e.message.includes('polyfill')) {
+            throw e;
+        }
+        throw invalidFormat(format, 'Invalid character found');
+    }
+    const array = new Uint8Array(bytes.length);
+    for (let i = 0; i < bytes.length; i++) {
+        array[i] = bytes.charCodeAt(i);
+    }
+    return array;
+}
+class DataURLParts {
+    constructor(dataURL) {
+        this.base64 = false;
+        this.contentType = null;
+        const matches = dataURL.match(/^data:([^,]+)?,/);
+        if (matches === null) {
+            throw invalidFormat(StringFormat.DATA_URL, "Must be formatted 'data:[<mediatype>][;base64],<data>");
+        }
+        const middle = matches[1] || null;
+        if (middle != null) {
+            this.base64 = endsWith(middle, ';base64');
+            this.contentType = this.base64
+                ? middle.substring(0, middle.length - ';base64'.length)
+                : middle;
+        }
+        this.rest = dataURL.substring(dataURL.indexOf(',') + 1);
+    }
+}
+function dataURLBytes_(dataUrl) {
+    const parts = new DataURLParts(dataUrl);
+    if (parts.base64) {
+        return base64Bytes_(StringFormat.BASE64, parts.rest);
+    }
+    else {
+        return percentEncodedBytes_(parts.rest);
+    }
+}
+function dataURLContentType_(dataUrl) {
+    const parts = new DataURLParts(dataUrl);
+    return parts.contentType;
+}
+function endsWith(s, end) {
+    const longEnough = s.length >= end.length;
+    if (!longEnough) {
+        return false;
+    }
+    return s.substring(s.length - end.length) === end;
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @param opt_elideCopy - If true, doesn't copy mutable input data
+ *     (e.g. Uint8Arrays). Pass true only if you know the objects will not be
+ *     modified after this blob's construction.
+ *
+ * @internal
+ */
+class FbsBlob {
+    constructor(data, elideCopy) {
+        let size = 0;
+        let blobType = '';
+        if (isNativeBlob(data)) {
+            this.data_ = data;
+            size = data.size;
+            blobType = data.type;
+        }
+        else if (data instanceof ArrayBuffer) {
+            if (elideCopy) {
+                this.data_ = new Uint8Array(data);
+            }
+            else {
+                this.data_ = new Uint8Array(data.byteLength);
+                this.data_.set(new Uint8Array(data));
+            }
+            size = this.data_.length;
+        }
+        else if (data instanceof Uint8Array) {
+            if (elideCopy) {
+                this.data_ = data;
+            }
+            else {
+                this.data_ = new Uint8Array(data.length);
+                this.data_.set(data);
+            }
+            size = data.length;
+        }
+        this.size_ = size;
+        this.type_ = blobType;
+    }
+    size() {
+        return this.size_;
+    }
+    type() {
+        return this.type_;
+    }
+    slice(startByte, endByte) {
+        if (isNativeBlob(this.data_)) {
+            const realBlob = this.data_;
+            const sliced = sliceBlob(realBlob, startByte, endByte);
+            if (sliced === null) {
+                return null;
+            }
+            return new FbsBlob(sliced);
+        }
+        else {
+            const slice = new Uint8Array(this.data_.buffer, startByte, endByte - startByte);
+            return new FbsBlob(slice, true);
+        }
+    }
+    static getBlob(...args) {
+        if (isNativeBlobDefined()) {
+            const blobby = args.map((val) => {
+                if (val instanceof FbsBlob) {
+                    return val.data_;
+                }
+                else {
+                    return val;
+                }
+            });
+            return new FbsBlob(getBlob$1.apply(null, blobby));
+        }
+        else {
+            const uint8Arrays = args.map((val) => {
+                if (isString(val)) {
+                    return dataFromString(StringFormat.RAW, val).data;
+                }
+                else {
+                    // Blobs don't exist, so this has to be a Uint8Array.
+                    return val.data_;
+                }
+            });
+            let finalLength = 0;
+            uint8Arrays.forEach((array) => {
+                finalLength += array.byteLength;
+            });
+            const merged = new Uint8Array(finalLength);
+            let index = 0;
+            uint8Arrays.forEach((array) => {
+                for (let i = 0; i < array.length; i++) {
+                    merged[index++] = array[i];
+                }
+            });
+            return new FbsBlob(merged, true);
+        }
+    }
+    uploadData() {
+        return this.data_;
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Returns the Object resulting from parsing the given JSON, or null if the
+ * given string does not represent a JSON object.
+ */
+function jsonObjectOrNull(s) {
+    let obj;
+    try {
+        obj = JSON.parse(s);
+    }
+    catch (e) {
+        return null;
+    }
+    if (isNonArrayObject(obj)) {
+        return obj;
+    }
+    else {
+        return null;
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Contains helper methods for manipulating paths.
+ */
+/**
+ * @return Null if the path is already at the root.
+ */
+function parent(path) {
+    if (path.length === 0) {
+        return null;
+    }
+    const index = path.lastIndexOf('/');
+    if (index === -1) {
+        return '';
+    }
+    const newPath = path.slice(0, index);
+    return newPath;
+}
+function child(path, childPath) {
+    const canonicalChildPath = childPath
+        .split('/')
+        .filter(component => component.length > 0)
+        .join('/');
+    if (path.length === 0) {
+        return canonicalChildPath;
+    }
+    else {
+        return path + '/' + canonicalChildPath;
+    }
+}
+/**
+ * Returns the last component of a path.
+ * '/foo/bar' -> 'bar'
+ * '/foo/bar/baz/' -> 'baz/'
+ * '/a' -> 'a'
+ */
+function lastComponent(path) {
+    const index = path.lastIndexOf('/', path.length - 2);
+    if (index === -1) {
+        return path;
+    }
+    else {
+        return path.slice(index + 1);
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+function noXform_(metadata, value) {
+    return value;
+}
+class Mapping {
+    constructor(server, local, writable, xform) {
+        this.server = server;
+        this.local = local || server;
+        this.writable = !!writable;
+        this.xform = xform || noXform_;
+    }
+}
+let mappings_ = null;
+function xformPath(fullPath) {
+    if (!isString(fullPath) || fullPath.length < 2) {
+        return fullPath;
+    }
+    else {
+        return lastComponent(fullPath);
+    }
+}
+function getMappings() {
+    if (mappings_) {
+        return mappings_;
+    }
+    const mappings = [];
+    mappings.push(new Mapping('bucket'));
+    mappings.push(new Mapping('generation'));
+    mappings.push(new Mapping('metageneration'));
+    mappings.push(new Mapping('name', 'fullPath', true));
+    function mappingsXformPath(_metadata, fullPath) {
+        return xformPath(fullPath);
+    }
+    const nameMapping = new Mapping('name');
+    nameMapping.xform = mappingsXformPath;
+    mappings.push(nameMapping);
+    /**
+     * Coerces the second param to a number, if it is defined.
+     */
+    function xformSize(_metadata, size) {
+        if (size !== undefined) {
+            return Number(size);
+        }
+        else {
+            return size;
+        }
+    }
+    const sizeMapping = new Mapping('size');
+    sizeMapping.xform = xformSize;
+    mappings.push(sizeMapping);
+    mappings.push(new Mapping('timeCreated'));
+    mappings.push(new Mapping('updated'));
+    mappings.push(new Mapping('md5Hash', null, true));
+    mappings.push(new Mapping('cacheControl', null, true));
+    mappings.push(new Mapping('contentDisposition', null, true));
+    mappings.push(new Mapping('contentEncoding', null, true));
+    mappings.push(new Mapping('contentLanguage', null, true));
+    mappings.push(new Mapping('contentType', null, true));
+    mappings.push(new Mapping('metadata', 'customMetadata', true));
+    mappings_ = mappings;
+    return mappings_;
+}
+function addRef(metadata, service) {
+    function generateRef() {
+        const bucket = metadata['bucket'];
+        const path = metadata['fullPath'];
+        const loc = new Location(bucket, path);
+        return service._makeStorageReference(loc);
+    }
+    Object.defineProperty(metadata, 'ref', { get: generateRef });
+}
+function fromResource(service, resource, mappings) {
+    const metadata = {};
+    metadata['type'] = 'file';
+    const len = mappings.length;
+    for (let i = 0; i < len; i++) {
+        const mapping = mappings[i];
+        metadata[mapping.local] = mapping.xform(metadata, resource[mapping.server]);
+    }
+    addRef(metadata, service);
+    return metadata;
+}
+function fromResourceString(service, resourceString, mappings) {
+    const obj = jsonObjectOrNull(resourceString);
+    if (obj === null) {
+        return null;
+    }
+    const resource = obj;
+    return fromResource(service, resource, mappings);
+}
+function downloadUrlFromResourceString(metadata, resourceString, host, protocol) {
+    const obj = jsonObjectOrNull(resourceString);
+    if (obj === null) {
+        return null;
+    }
+    if (!isString(obj['downloadTokens'])) {
+        // This can happen if objects are uploaded through GCS and retrieved
+        // through list, so we don't want to throw an Error.
+        return null;
+    }
+    const tokens = obj['downloadTokens'];
+    if (tokens.length === 0) {
+        return null;
+    }
+    const encode = encodeURIComponent;
+    const tokensList = tokens.split(',');
+    const urls = tokensList.map((token) => {
+        const bucket = metadata['bucket'];
+        const path = metadata['fullPath'];
+        const urlPart = '/b/' + encode(bucket) + '/o/' + encode(path);
+        const base = makeUrl(urlPart, host, protocol);
+        const queryString = makeQueryString({
+            alt: 'media',
+            token
+        });
+        return base + queryString;
+    });
+    return urls[0];
+}
+function toResourceString(metadata, mappings) {
+    const resource = {};
+    const len = mappings.length;
+    for (let i = 0; i < len; i++) {
+        const mapping = mappings[i];
+        if (mapping.writable) {
+            resource[mapping.server] = metadata[mapping.local];
+        }
+    }
+    return JSON.stringify(resource);
+}
+
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+const PREFIXES_KEY = 'prefixes';
+const ITEMS_KEY = 'items';
+function fromBackendResponse(service, bucket, resource) {
+    const listResult = {
+        prefixes: [],
+        items: [],
+        nextPageToken: resource['nextPageToken']
+    };
+    if (resource[PREFIXES_KEY]) {
+        for (const path of resource[PREFIXES_KEY]) {
+            const pathWithoutTrailingSlash = path.replace(/\/$/, '');
+            const reference = service._makeStorageReference(new Location(bucket, pathWithoutTrailingSlash));
+            listResult.prefixes.push(reference);
+        }
+    }
+    if (resource[ITEMS_KEY]) {
+        for (const item of resource[ITEMS_KEY]) {
+            const reference = service._makeStorageReference(new Location(bucket, item['name']));
+            listResult.items.push(reference);
+        }
+    }
+    return listResult;
+}
+function fromResponseString(service, bucket, resourceString) {
+    const obj = jsonObjectOrNull(resourceString);
+    if (obj === null) {
+        return null;
+    }
+    const resource = obj;
+    return fromBackendResponse(service, bucket, resource);
+}
+
+/**
+ * Contains a fully specified request.
+ *
+ * @param I - the type of the backend's network response.
+ * @param O - the output response type used by the rest of the SDK.
+ */
+class RequestInfo {
+    constructor(url, method, 
+    /**
+     * Returns the value with which to resolve the request's promise. Only called
+     * if the request is successful. Throw from this function to reject the
+     * returned Request's promise with the thrown error.
+     * Note: The XhrIo passed to this function may be reused after this callback
+     * returns. Do not keep a reference to it in any way.
+     */
+    handler, timeout) {
+        this.url = url;
+        this.method = method;
+        this.handler = handler;
+        this.timeout = timeout;
+        this.urlParams = {};
+        this.headers = {};
+        this.body = null;
+        this.errorHandler = null;
+        /**
+         * Called with the current number of bytes uploaded and total size (-1 if not
+         * computable) of the request body (i.e. used to report upload progress).
+         */
+        this.progressCallback = null;
+        this.successCodes = [200];
+        this.additionalRetryCodes = [];
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Throws the UNKNOWN StorageError if cndn is false.
+ */
+function handlerCheck(cndn) {
+    if (!cndn) {
+        throw unknown();
+    }
+}
+function metadataHandler(service, mappings) {
+    function handler(xhr, text) {
+        const metadata = fromResourceString(service, text, mappings);
+        handlerCheck(metadata !== null);
+        return metadata;
+    }
+    return handler;
+}
+function listHandler(service, bucket) {
+    function handler(xhr, text) {
+        const listResult = fromResponseString(service, bucket, text);
+        handlerCheck(listResult !== null);
+        return listResult;
+    }
+    return handler;
+}
+function downloadUrlHandler(service, mappings) {
+    function handler(xhr, text) {
+        const metadata = fromResourceString(service, text, mappings);
+        handlerCheck(metadata !== null);
+        return downloadUrlFromResourceString(metadata, text, service.host, service._protocol);
+    }
+    return handler;
+}
+function sharedErrorHandler(location) {
+    function errorHandler(xhr, err) {
+        let newErr;
+        if (xhr.getStatus() === 401) {
+            if (
+            // This exact message string is the only consistent part of the
+            // server's error response that identifies it as an App Check error.
+            xhr.getErrorText().includes('Firebase App Check token is invalid')) {
+                newErr = unauthorizedApp();
+            }
+            else {
+                newErr = unauthenticated();
+            }
+        }
+        else {
+            if (xhr.getStatus() === 402) {
+                newErr = quotaExceeded(location.bucket);
+            }
+            else {
+                if (xhr.getStatus() === 403) {
+                    newErr = unauthorized(location.path);
+                }
+                else {
+                    newErr = err;
+                }
+            }
+        }
+        newErr.status = xhr.getStatus();
+        newErr.serverResponse = err.serverResponse;
+        return newErr;
+    }
+    return errorHandler;
+}
+function objectErrorHandler(location) {
+    const shared = sharedErrorHandler(location);
+    function errorHandler(xhr, err) {
+        let newErr = shared(xhr, err);
+        if (xhr.getStatus() === 404) {
+            newErr = objectNotFound(location.path);
+        }
+        newErr.serverResponse = err.serverResponse;
+        return newErr;
+    }
+    return errorHandler;
+}
+function getMetadata$2(service, location, mappings) {
+    const urlPart = location.fullServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'GET';
+    const timeout = service.maxOperationRetryTime;
+    const requestInfo = new RequestInfo(url, method, metadataHandler(service, mappings), timeout);
+    requestInfo.errorHandler = objectErrorHandler(location);
+    return requestInfo;
+}
+function list$2(service, location, delimiter, pageToken, maxResults) {
+    const urlParams = {};
+    if (location.isRoot) {
+        urlParams['prefix'] = '';
+    }
+    else {
+        urlParams['prefix'] = location.path + '/';
+    }
+    if (delimiter && delimiter.length > 0) {
+        urlParams['delimiter'] = delimiter;
+    }
+    if (pageToken) {
+        urlParams['pageToken'] = pageToken;
+    }
+    if (maxResults) {
+        urlParams['maxResults'] = maxResults;
+    }
+    const urlPart = location.bucketOnlyServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'GET';
+    const timeout = service.maxOperationRetryTime;
+    const requestInfo = new RequestInfo(url, method, listHandler(service, location.bucket), timeout);
+    requestInfo.urlParams = urlParams;
+    requestInfo.errorHandler = sharedErrorHandler(location);
+    return requestInfo;
+}
+function getBytes$1(service, location, maxDownloadSizeBytes) {
+    const urlPart = location.fullServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol) + '?alt=media';
+    const method = 'GET';
+    const timeout = service.maxOperationRetryTime;
+    const requestInfo = new RequestInfo(url, method, (_, data) => data, timeout);
+    requestInfo.errorHandler = objectErrorHandler(location);
+    if (maxDownloadSizeBytes !== undefined) {
+        requestInfo.headers['Range'] = `bytes=0-${maxDownloadSizeBytes}`;
+        requestInfo.successCodes = [200 /* OK */, 206 /* Partial Content */];
+    }
+    return requestInfo;
+}
+function getDownloadUrl(service, location, mappings) {
+    const urlPart = location.fullServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'GET';
+    const timeout = service.maxOperationRetryTime;
+    const requestInfo = new RequestInfo(url, method, downloadUrlHandler(service, mappings), timeout);
+    requestInfo.errorHandler = objectErrorHandler(location);
+    return requestInfo;
+}
+function updateMetadata$2(service, location, metadata, mappings) {
+    const urlPart = location.fullServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'PATCH';
+    const body = toResourceString(metadata, mappings);
+    const headers = { 'Content-Type': 'application/json; charset=utf-8' };
+    const timeout = service.maxOperationRetryTime;
+    const requestInfo = new RequestInfo(url, method, metadataHandler(service, mappings), timeout);
+    requestInfo.headers = headers;
+    requestInfo.body = body;
+    requestInfo.errorHandler = objectErrorHandler(location);
+    return requestInfo;
+}
+function deleteObject$2(service, location) {
+    const urlPart = location.fullServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'DELETE';
+    const timeout = service.maxOperationRetryTime;
+    function handler(_xhr, _text) { }
+    const requestInfo = new RequestInfo(url, method, handler, timeout);
+    requestInfo.successCodes = [200, 204];
+    requestInfo.errorHandler = objectErrorHandler(location);
+    return requestInfo;
+}
+function determineContentType_(metadata, blob) {
+    return ((metadata && metadata['contentType']) ||
+        (blob && blob.type()) ||
+        'application/octet-stream');
+}
+function metadataForUpload_(location, blob, metadata) {
+    const metadataClone = Object.assign({}, metadata);
+    metadataClone['fullPath'] = location.path;
+    metadataClone['size'] = blob.size();
+    if (!metadataClone['contentType']) {
+        metadataClone['contentType'] = determineContentType_(null, blob);
+    }
+    return metadataClone;
+}
+/**
+ * Prepare RequestInfo for uploads as Content-Type: multipart.
+ */
+function multipartUpload(service, location, mappings, blob, metadata) {
+    const urlPart = location.bucketOnlyServerUrl();
+    const headers = {
+        'X-Goog-Upload-Protocol': 'multipart'
+    };
+    function genBoundary() {
+        let str = '';
+        for (let i = 0; i < 2; i++) {
+            str = str + Math.random().toString().slice(2);
+        }
+        return str;
+    }
+    const boundary = genBoundary();
+    headers['Content-Type'] = 'multipart/related; boundary=' + boundary;
+    const metadata_ = metadataForUpload_(location, blob, metadata);
+    const metadataString = toResourceString(metadata_, mappings);
+    const preBlobPart = '--' +
+        boundary +
+        '\r\n' +
+        'Content-Type: application/json; charset=utf-8\r\n\r\n' +
+        metadataString +
+        '\r\n--' +
+        boundary +
+        '\r\n' +
+        'Content-Type: ' +
+        metadata_['contentType'] +
+        '\r\n\r\n';
+    const postBlobPart = '\r\n--' + boundary + '--';
+    const body = FbsBlob.getBlob(preBlobPart, blob, postBlobPart);
+    if (body === null) {
+        throw cannotSliceBlob();
+    }
+    const urlParams = { name: metadata_['fullPath'] };
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'POST';
+    const timeout = service.maxUploadRetryTime;
+    const requestInfo = new RequestInfo(url, method, metadataHandler(service, mappings), timeout);
+    requestInfo.urlParams = urlParams;
+    requestInfo.headers = headers;
+    requestInfo.body = body.uploadData();
+    requestInfo.errorHandler = sharedErrorHandler(location);
+    return requestInfo;
+}
+/**
+ * @param current The number of bytes that have been uploaded so far.
+ * @param total The total number of bytes in the upload.
+ * @param opt_finalized True if the server has finished the upload.
+ * @param opt_metadata The upload metadata, should
+ *     only be passed if opt_finalized is true.
+ */
+class ResumableUploadStatus {
+    constructor(current, total, finalized, metadata) {
+        this.current = current;
+        this.total = total;
+        this.finalized = !!finalized;
+        this.metadata = metadata || null;
+    }
+}
+function checkResumeHeader_(xhr, allowed) {
+    let status = null;
+    try {
+        status = xhr.getResponseHeader('X-Goog-Upload-Status');
+    }
+    catch (e) {
+        handlerCheck(false);
+    }
+    const allowedStatus = allowed || ['active'];
+    handlerCheck(!!status && allowedStatus.indexOf(status) !== -1);
+    return status;
+}
+function createResumableUpload(service, location, mappings, blob, metadata) {
+    const urlPart = location.bucketOnlyServerUrl();
+    const metadataForUpload = metadataForUpload_(location, blob, metadata);
+    const urlParams = { name: metadataForUpload['fullPath'] };
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'POST';
+    const headers = {
+        'X-Goog-Upload-Protocol': 'resumable',
+        'X-Goog-Upload-Command': 'start',
+        'X-Goog-Upload-Header-Content-Length': `${blob.size()}`,
+        'X-Goog-Upload-Header-Content-Type': metadataForUpload['contentType'],
+        'Content-Type': 'application/json; charset=utf-8'
+    };
+    const body = toResourceString(metadataForUpload, mappings);
+    const timeout = service.maxUploadRetryTime;
+    function handler(xhr) {
+        checkResumeHeader_(xhr);
+        let url;
+        try {
+            url = xhr.getResponseHeader('X-Goog-Upload-URL');
+        }
+        catch (e) {
+            handlerCheck(false);
+        }
+        handlerCheck(isString(url));
+        return url;
+    }
+    const requestInfo = new RequestInfo(url, method, handler, timeout);
+    requestInfo.urlParams = urlParams;
+    requestInfo.headers = headers;
+    requestInfo.body = body;
+    requestInfo.errorHandler = sharedErrorHandler(location);
+    return requestInfo;
+}
+/**
+ * @param url From a call to fbs.requests.createResumableUpload.
+ */
+function getResumableUploadStatus(service, location, url, blob) {
+    const headers = { 'X-Goog-Upload-Command': 'query' };
+    function handler(xhr) {
+        const status = checkResumeHeader_(xhr, ['active', 'final']);
+        let sizeString = null;
+        try {
+            sizeString = xhr.getResponseHeader('X-Goog-Upload-Size-Received');
+        }
+        catch (e) {
+            handlerCheck(false);
+        }
+        if (!sizeString) {
+            // null or empty string
+            handlerCheck(false);
+        }
+        const size = Number(sizeString);
+        handlerCheck(!isNaN(size));
+        return new ResumableUploadStatus(size, blob.size(), status === 'final');
+    }
+    const method = 'POST';
+    const timeout = service.maxUploadRetryTime;
+    const requestInfo = new RequestInfo(url, method, handler, timeout);
+    requestInfo.headers = headers;
+    requestInfo.errorHandler = sharedErrorHandler(location);
+    return requestInfo;
+}
+/**
+ * Any uploads via the resumable upload API must transfer a number of bytes
+ * that is a multiple of this number.
+ */
+const RESUMABLE_UPLOAD_CHUNK_SIZE = 256 * 1024;
+/**
+ * @param url From a call to fbs.requests.createResumableUpload.
+ * @param chunkSize Number of bytes to upload.
+ * @param status The previous status.
+ *     If not passed or null, we start from the beginning.
+ * @throws fbs.Error If the upload is already complete, the passed in status
+ *     has a final size inconsistent with the blob, or the blob cannot be sliced
+ *     for upload.
+ */
+function continueResumableUpload(location, service, url, blob, chunkSize, mappings, status, progressCallback) {
+    // TODO(andysoto): standardize on internal asserts
+    // assert(!(opt_status && opt_status.finalized));
+    const status_ = new ResumableUploadStatus(0, 0);
+    if (status) {
+        status_.current = status.current;
+        status_.total = status.total;
+    }
+    else {
+        status_.current = 0;
+        status_.total = blob.size();
+    }
+    if (blob.size() !== status_.total) {
+        throw serverFileWrongSize();
+    }
+    const bytesLeft = status_.total - status_.current;
+    let bytesToUpload = bytesLeft;
+    if (chunkSize > 0) {
+        bytesToUpload = Math.min(bytesToUpload, chunkSize);
+    }
+    const startByte = status_.current;
+    const endByte = startByte + bytesToUpload;
+    let uploadCommand = '';
+    if (bytesToUpload === 0) {
+        uploadCommand = 'finalize';
+    }
+    else if (bytesLeft === bytesToUpload) {
+        uploadCommand = 'upload, finalize';
+    }
+    else {
+        uploadCommand = 'upload';
+    }
+    const headers = {
+        'X-Goog-Upload-Command': uploadCommand,
+        'X-Goog-Upload-Offset': `${status_.current}`
+    };
+    const body = blob.slice(startByte, endByte);
+    if (body === null) {
+        throw cannotSliceBlob();
+    }
+    function handler(xhr, text) {
+        // TODO(andysoto): Verify the MD5 of each uploaded range:
+        // the 'x-range-md5' header comes back with status code 308 responses.
+        // We'll only be able to bail out though, because you can't re-upload a
+        // range that you previously uploaded.
+        const uploadStatus = checkResumeHeader_(xhr, ['active', 'final']);
+        const newCurrent = status_.current + bytesToUpload;
+        const size = blob.size();
+        let metadata;
+        if (uploadStatus === 'final') {
+            metadata = metadataHandler(service, mappings)(xhr, text);
+        }
+        else {
+            metadata = null;
+        }
+        return new ResumableUploadStatus(newCurrent, size, uploadStatus === 'final', metadata);
+    }
+    const method = 'POST';
+    const timeout = service.maxUploadRetryTime;
+    const requestInfo = new RequestInfo(url, method, handler, timeout);
+    requestInfo.headers = headers;
+    requestInfo.body = body.uploadData();
+    requestInfo.progressCallback = progressCallback || null;
+    requestInfo.errorHandler = sharedErrorHandler(location);
+    return requestInfo;
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * An event that is triggered on a task.
+ * @internal
+ */
+const TaskEvent = {
+    /**
+     * For this event,
+     * <ul>
+     *   <li>The `next` function is triggered on progress updates and when the
+     *       task is paused/resumed with an `UploadTaskSnapshot` as the first
+     *       argument.</li>
+     *   <li>The `error` function is triggered if the upload is canceled or fails
+     *       for another reason.</li>
+     *   <li>The `complete` function is triggered if the upload completes
+     *       successfully.</li>
+     * </ul>
+     */
+    STATE_CHANGED: 'state_changed'
+};
+// type keys = keyof TaskState
+/**
+ * Represents the current state of a running upload.
+ * @internal
+ */
+const TaskState = {
+    /** The task is currently transferring data. */
+    RUNNING: 'running',
+    /** The task was paused by the user. */
+    PAUSED: 'paused',
+    /** The task completed successfully. */
+    SUCCESS: 'success',
+    /** The task was canceled. */
+    CANCELED: 'canceled',
+    /** The task failed with an error. */
+    ERROR: 'error'
+};
+function taskStateFromInternalTaskState(state) {
+    switch (state) {
+        case "running" /* InternalTaskState.RUNNING */:
+        case "pausing" /* InternalTaskState.PAUSING */:
+        case "canceling" /* InternalTaskState.CANCELING */:
+            return TaskState.RUNNING;
+        case "paused" /* InternalTaskState.PAUSED */:
+            return TaskState.PAUSED;
+        case "success" /* InternalTaskState.SUCCESS */:
+            return TaskState.SUCCESS;
+        case "canceled" /* InternalTaskState.CANCELED */:
+            return TaskState.CANCELED;
+        case "error" /* InternalTaskState.ERROR */:
+            return TaskState.ERROR;
+        default:
+            // TODO(andysoto): assert(false);
+            return TaskState.ERROR;
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+class Observer {
+    constructor(nextOrObserver, error, complete) {
+        const asFunctions = isFunction(nextOrObserver) || error != null || complete != null;
+        if (asFunctions) {
+            this.next = nextOrObserver;
+            this.error = error ?? undefined;
+            this.complete = complete ?? undefined;
+        }
+        else {
+            const observer = nextOrObserver;
+            this.next = observer.next;
+            this.error = observer.error;
+            this.complete = observer.complete;
+        }
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Returns a function that invokes f with its arguments asynchronously as a
+ * microtask, i.e. as soon as possible after the current script returns back
+ * into browser code.
+ */
+// eslint-disable-next-line @typescript-eslint/ban-types
+function async(f) {
+    return (...argsToForward) => {
+        // eslint-disable-next-line @typescript-eslint/no-floating-promises
+        Promise.resolve().then(() => f(...argsToForward));
+    };
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/** An override for the text-based Connection. Used in tests. */
+let textFactoryOverride = null;
+/**
+ * Network layer for browsers. We use this instead of goog.net.XhrIo because
+ * goog.net.XhrIo is hyuuuuge and doesn't work in React Native on Android.
+ */
+class XhrConnection {
+    constructor() {
+        this.sent_ = false;
+        this.xhr_ = new XMLHttpRequest();
+        this.initXhr();
+        this.errorCode_ = ErrorCode.NO_ERROR;
+        this.sendPromise_ = new Promise(resolve => {
+            this.xhr_.addEventListener('abort', () => {
+                this.errorCode_ = ErrorCode.ABORT;
+                resolve();
+            });
+            this.xhr_.addEventListener('error', () => {
+                this.errorCode_ = ErrorCode.NETWORK_ERROR;
+                resolve();
+            });
+            this.xhr_.addEventListener('load', () => {
+                resolve();
+            });
+        });
+    }
+    send(url, method, isUsingEmulator, body, headers) {
+        if (this.sent_) {
+            throw internalError('cannot .send() more than once');
+        }
+        if (util.isCloudWorkstation(url) && isUsingEmulator) {
+            this.xhr_.withCredentials = true;
+        }
+        this.sent_ = true;
+        this.xhr_.open(method, url, true);
+        if (headers !== undefined) {
+            for (const key in headers) {
+                if (headers.hasOwnProperty(key)) {
+                    this.xhr_.setRequestHeader(key, headers[key].toString());
+                }
+            }
+        }
+        if (body !== undefined) {
+            this.xhr_.send(body);
+        }
+        else {
+            this.xhr_.send();
+        }
+        return this.sendPromise_;
+    }
+    getErrorCode() {
+        if (!this.sent_) {
+            throw internalError('cannot .getErrorCode() before sending');
+        }
+        return this.errorCode_;
+    }
+    getStatus() {
+        if (!this.sent_) {
+            throw internalError('cannot .getStatus() before sending');
+        }
+        try {
+            return this.xhr_.status;
+        }
+        catch (e) {
+            return -1;
+        }
+    }
+    getResponse() {
+        if (!this.sent_) {
+            throw internalError('cannot .getResponse() before sending');
+        }
+        return this.xhr_.response;
+    }
+    getErrorText() {
+        if (!this.sent_) {
+            throw internalError('cannot .getErrorText() before sending');
+        }
+        return this.xhr_.statusText;
+    }
+    /** Aborts the request. */
+    abort() {
+        this.xhr_.abort();
+    }
+    getResponseHeader(header) {
+        return this.xhr_.getResponseHeader(header);
+    }
+    addUploadProgressListener(listener) {
+        if (this.xhr_.upload != null) {
+            this.xhr_.upload.addEventListener('progress', listener);
+        }
+    }
+    removeUploadProgressListener(listener) {
+        if (this.xhr_.upload != null) {
+            this.xhr_.upload.removeEventListener('progress', listener);
+        }
+    }
+}
+class XhrTextConnection extends XhrConnection {
+    initXhr() {
+        this.xhr_.responseType = 'text';
+    }
+}
+function newTextConnection() {
+    return textFactoryOverride ? textFactoryOverride() : new XhrTextConnection();
+}
+class XhrBytesConnection extends XhrConnection {
+    initXhr() {
+        this.xhr_.responseType = 'arraybuffer';
+    }
+}
+function newBytesConnection() {
+    return new XhrBytesConnection();
+}
+class XhrBlobConnection extends XhrConnection {
+    initXhr() {
+        this.xhr_.responseType = 'blob';
+    }
+}
+function newBlobConnection() {
+    return new XhrBlobConnection();
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Represents a blob being uploaded. Can be used to pause/resume/cancel the
+ * upload and manage callbacks for various events.
+ * @internal
+ */
+class UploadTask {
+    isExponentialBackoffExpired() {
+        return this.sleepTime > this.maxSleepTime;
+    }
+    /**
+     * @param ref - The firebaseStorage.Reference object this task came
+     *     from, untyped to avoid cyclic dependencies.
+     * @param blob - The blob to upload.
+     */
+    constructor(ref, blob, metadata = null) {
+        /**
+         * Number of bytes transferred so far.
+         */
+        this._transferred = 0;
+        this._needToFetchStatus = false;
+        this._needToFetchMetadata = false;
+        this._observers = [];
+        this._error = undefined;
+        this._uploadUrl = undefined;
+        this._request = undefined;
+        this._chunkMultiplier = 1;
+        this._resolve = undefined;
+        this._reject = undefined;
+        this._ref = ref;
+        this._blob = blob;
+        this._metadata = metadata;
+        this._mappings = getMappings();
+        this._resumable = this._shouldDoResumable(this._blob);
+        this._state = "running" /* InternalTaskState.RUNNING */;
+        this._errorHandler = error => {
+            this._request = undefined;
+            this._chunkMultiplier = 1;
+            if (error._codeEquals(exports.StorageErrorCode.CANCELED)) {
+                this._needToFetchStatus = true;
+                this.completeTransitions_();
+            }
+            else {
+                const backoffExpired = this.isExponentialBackoffExpired();
+                if (isRetryStatusCode(error.status, [])) {
+                    if (backoffExpired) {
+                        error = retryLimitExceeded();
+                    }
+                    else {
+                        this.sleepTime = Math.max(this.sleepTime * 2, DEFAULT_MIN_SLEEP_TIME_MILLIS);
+                        this._needToFetchStatus = true;
+                        this.completeTransitions_();
+                        return;
+                    }
+                }
+                this._error = error;
+                this._transition("error" /* InternalTaskState.ERROR */);
+            }
+        };
+        this._metadataErrorHandler = error => {
+            this._request = undefined;
+            if (error._codeEquals(exports.StorageErrorCode.CANCELED)) {
+                this.completeTransitions_();
+            }
+            else {
+                this._error = error;
+                this._transition("error" /* InternalTaskState.ERROR */);
+            }
+        };
+        this.sleepTime = 0;
+        this.maxSleepTime = this._ref.storage.maxUploadRetryTime;
+        this._promise = new Promise((resolve, reject) => {
+            this._resolve = resolve;
+            this._reject = reject;
+            this._start();
+        });
+        // Prevent uncaught rejections on the internal promise from bubbling out
+        // to the top level with a dummy handler.
+        this._promise.then(null, () => { });
+    }
+    _makeProgressCallback() {
+        const sizeBefore = this._transferred;
+        return loaded => this._updateProgress(sizeBefore + loaded);
+    }
+    _shouldDoResumable(blob) {
+        return blob.size() > 256 * 1024;
+    }
+    _start() {
+        if (this._state !== "running" /* InternalTaskState.RUNNING */) {
+            // This can happen if someone pauses us in a resume callback, for example.
+            return;
+        }
+        if (this._request !== undefined) {
+            return;
+        }
+        if (this._resumable) {
+            if (this._uploadUrl === undefined) {
+                this._createResumable();
+            }
+            else {
+                if (this._needToFetchStatus) {
+                    this._fetchStatus();
+                }
+                else {
+                    if (this._needToFetchMetadata) {
+                        // Happens if we miss the metadata on upload completion.
+                        this._fetchMetadata();
+                    }
+                    else {
+                        this.pendingTimeout = setTimeout(() => {
+                            this.pendingTimeout = undefined;
+                            this._continueUpload();
+                        }, this.sleepTime);
+                    }
+                }
+            }
+        }
+        else {
+            this._oneShotUpload();
+        }
+    }
+    _resolveToken(callback) {
+        // eslint-disable-next-line @typescript-eslint/no-floating-promises
+        Promise.all([
+            this._ref.storage._getAuthToken(),
+            this._ref.storage._getAppCheckToken()
+        ]).then(([authToken, appCheckToken]) => {
+            switch (this._state) {
+                case "running" /* InternalTaskState.RUNNING */:
+                    callback(authToken, appCheckToken);
+                    break;
+                case "canceling" /* InternalTaskState.CANCELING */:
+                    this._transition("canceled" /* InternalTaskState.CANCELED */);
+                    break;
+                case "pausing" /* InternalTaskState.PAUSING */:
+                    this._transition("paused" /* InternalTaskState.PAUSED */);
+                    break;
+            }
+        });
+    }
+    // TODO(andysoto): assert false
+    _createResumable() {
+        this._resolveToken((authToken, appCheckToken) => {
+            const requestInfo = createResumableUpload(this._ref.storage, this._ref._location, this._mappings, this._blob, this._metadata);
+            const createRequest = this._ref.storage._makeRequest(requestInfo, newTextConnection, authToken, appCheckToken);
+            this._request = createRequest;
+            createRequest.getPromise().then((url) => {
+                this._request = undefined;
+                this._uploadUrl = url;
+                this._needToFetchStatus = false;
+                this.completeTransitions_();
+            }, this._errorHandler);
+        });
+    }
+    _fetchStatus() {
+        // TODO(andysoto): assert(this.uploadUrl_ !== null);
+        const url = this._uploadUrl;
+        this._resolveToken((authToken, appCheckToken) => {
+            const requestInfo = getResumableUploadStatus(this._ref.storage, this._ref._location, url, this._blob);
+            const statusRequest = this._ref.storage._makeRequest(requestInfo, newTextConnection, authToken, appCheckToken);
+            this._request = statusRequest;
+            statusRequest.getPromise().then(status => {
+                status = status;
+                this._request = undefined;
+                this._updateProgress(status.current);
+                this._needToFetchStatus = false;
+                if (status.finalized) {
+                    this._needToFetchMetadata = true;
+                }
+                this.completeTransitions_();
+            }, this._errorHandler);
+        });
+    }
+    _continueUpload() {
+        const chunkSize = RESUMABLE_UPLOAD_CHUNK_SIZE * this._chunkMultiplier;
+        const status = new ResumableUploadStatus(this._transferred, this._blob.size());
+        // TODO(andysoto): assert(this.uploadUrl_ !== null);
+        const url = this._uploadUrl;
+        this._resolveToken((authToken, appCheckToken) => {
+            let requestInfo;
+            try {
+                requestInfo = continueResumableUpload(this._ref._location, this._ref.storage, url, this._blob, chunkSize, this._mappings, status, this._makeProgressCallback());
+            }
+            catch (e) {
+                this._error = e;
+                this._transition("error" /* InternalTaskState.ERROR */);
+                return;
+            }
+            const uploadRequest = this._ref.storage._makeRequest(requestInfo, newTextConnection, authToken, appCheckToken, 
+            /*retry=*/ false // Upload requests should not be retried as each retry should be preceded by another query request. Which is handled in this file.
+            );
+            this._request = uploadRequest;
+            uploadRequest.getPromise().then((newStatus) => {
+                this._increaseMultiplier();
+                this._request = undefined;
+                this._updateProgress(newStatus.current);
+                if (newStatus.finalized) {
+                    this._metadata = newStatus.metadata;
+                    this._transition("success" /* InternalTaskState.SUCCESS */);
+                }
+                else {
+                    this.completeTransitions_();
+                }
+            }, this._errorHandler);
+        });
+    }
+    _increaseMultiplier() {
+        const currentSize = RESUMABLE_UPLOAD_CHUNK_SIZE * this._chunkMultiplier;
+        // Max chunk size is 32M.
+        if (currentSize * 2 < 32 * 1024 * 1024) {
+            this._chunkMultiplier *= 2;
+        }
+    }
+    _fetchMetadata() {
+        this._resolveToken((authToken, appCheckToken) => {
+            const requestInfo = getMetadata$2(this._ref.storage, this._ref._location, this._mappings);
+            const metadataRequest = this._ref.storage._makeRequest(requestInfo, newTextConnection, authToken, appCheckToken);
+            this._request = metadataRequest;
+            metadataRequest.getPromise().then(metadata => {
+                this._request = undefined;
+                this._metadata = metadata;
+                this._transition("success" /* InternalTaskState.SUCCESS */);
+            }, this._metadataErrorHandler);
+        });
+    }
+    _oneShotUpload() {
+        this._resolveToken((authToken, appCheckToken) => {
+            const requestInfo = multipartUpload(this._ref.storage, this._ref._location, this._mappings, this._blob, this._metadata);
+            const multipartRequest = this._ref.storage._makeRequest(requestInfo, newTextConnection, authToken, appCheckToken);
+            this._request = multipartRequest;
+            multipartRequest.getPromise().then(metadata => {
+                this._request = undefined;
+                this._metadata = metadata;
+                this._updateProgress(this._blob.size());
+                this._transition("success" /* InternalTaskState.SUCCESS */);
+            }, this._errorHandler);
+        });
+    }
+    _updateProgress(transferred) {
+        const old = this._transferred;
+        this._transferred = transferred;
+        // A progress update can make the "transferred" value smaller (e.g. a
+        // partial upload not completed by server, after which the "transferred"
+        // value may reset to the value at the beginning of the request).
+        if (this._transferred !== old) {
+            this._notifyObservers();
+        }
+    }
+    _transition(state) {
+        if (this._state === state) {
+            return;
+        }
+        switch (state) {
+            case "canceling" /* InternalTaskState.CANCELING */:
+            case "pausing" /* InternalTaskState.PAUSING */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.RUNNING ||
+                //        this.state_ === InternalTaskState.PAUSING);
+                this._state = state;
+                if (this._request !== undefined) {
+                    this._request.cancel();
+                }
+                else if (this.pendingTimeout) {
+                    clearTimeout(this.pendingTimeout);
+                    this.pendingTimeout = undefined;
+                    this.completeTransitions_();
+                }
+                break;
+            case "running" /* InternalTaskState.RUNNING */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.PAUSED ||
+                //        this.state_ === InternalTaskState.PAUSING);
+                const wasPaused = this._state === "paused" /* InternalTaskState.PAUSED */;
+                this._state = state;
+                if (wasPaused) {
+                    this._notifyObservers();
+                    this._start();
+                }
+                break;
+            case "paused" /* InternalTaskState.PAUSED */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.PAUSING);
+                this._state = state;
+                this._notifyObservers();
+                break;
+            case "canceled" /* InternalTaskState.CANCELED */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.PAUSED ||
+                //        this.state_ === InternalTaskState.CANCELING);
+                this._error = canceled();
+                this._state = state;
+                this._notifyObservers();
+                break;
+            case "error" /* InternalTaskState.ERROR */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.RUNNING ||
+                //        this.state_ === InternalTaskState.PAUSING ||
+                //        this.state_ === InternalTaskState.CANCELING);
+                this._state = state;
+                this._notifyObservers();
+                break;
+            case "success" /* InternalTaskState.SUCCESS */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.RUNNING ||
+                //        this.state_ === InternalTaskState.PAUSING ||
+                //        this.state_ === InternalTaskState.CANCELING);
+                this._state = state;
+                this._notifyObservers();
+                break;
+        }
+    }
+    completeTransitions_() {
+        switch (this._state) {
+            case "pausing" /* InternalTaskState.PAUSING */:
+                this._transition("paused" /* InternalTaskState.PAUSED */);
+                break;
+            case "canceling" /* InternalTaskState.CANCELING */:
+                this._transition("canceled" /* InternalTaskState.CANCELED */);
+                break;
+            case "running" /* InternalTaskState.RUNNING */:
+                this._start();
+                break;
+        }
+    }
+    /**
+     * A snapshot of the current task state.
+     */
+    get snapshot() {
+        const externalState = taskStateFromInternalTaskState(this._state);
+        return {
+            bytesTransferred: this._transferred,
+            totalBytes: this._blob.size(),
+            state: externalState,
+            metadata: this._metadata,
+            task: this,
+            ref: this._ref
+        };
+    }
+    /**
+     * Adds a callback for an event.
+     * @param type - The type of event to listen for.
+     * @param nextOrObserver -
+     *     The `next` function, which gets called for each item in
+     *     the event stream, or an observer object with some or all of these three
+     *     properties (`next`, `error`, `complete`).
+     * @param error - A function that gets called with a `StorageError`
+     *     if the event stream ends due to an error.
+     * @param completed - A function that gets called if the
+     *     event stream ends normally.
+     * @returns
+     *     If only the event argument is passed, returns a function you can use to
+     *     add callbacks (see the examples above). If more than just the event
+     *     argument is passed, returns a function you can call to unregister the
+     *     callbacks.
+     */
+    on(type, nextOrObserver, error, completed) {
+        // Note: `type` isn't being used. Its type is also incorrect. TaskEvent should not be a string.
+        const observer = new Observer(nextOrObserver || undefined, error || undefined, completed || undefined);
+        this._addObserver(observer);
+        return () => {
+            this._removeObserver(observer);
+        };
+    }
+    /**
+     * This object behaves like a Promise, and resolves with its snapshot data
+     * when the upload completes.
+     * @param onFulfilled - The fulfillment callback. Promise chaining works as normal.
+     * @param onRejected - The rejection callback.
+     */
+    then(onFulfilled, onRejected) {
+        // These casts are needed so that TypeScript can infer the types of the
+        // resulting Promise.
+        return this._promise.then(onFulfilled, onRejected);
+    }
+    /**
+     * Equivalent to calling `then(null, onRejected)`.
+     */
+    catch(onRejected) {
+        return this.then(null, onRejected);
+    }
+    /**
+     * Adds the given observer.
+     */
+    _addObserver(observer) {
+        this._observers.push(observer);
+        this._notifyObserver(observer);
+    }
+    /**
+     * Removes the given observer.
+     */
+    _removeObserver(observer) {
+        const i = this._observers.indexOf(observer);
+        if (i !== -1) {
+            this._observers.splice(i, 1);
+        }
+    }
+    _notifyObservers() {
+        this._finishPromise();
+        const observers = this._observers.slice();
+        observers.forEach(observer => {
+            this._notifyObserver(observer);
+        });
+    }
+    _finishPromise() {
+        if (this._resolve !== undefined) {
+            let triggered = true;
+            switch (taskStateFromInternalTaskState(this._state)) {
+                case TaskState.SUCCESS:
+                    async(this._resolve.bind(null, this.snapshot))();
+                    break;
+                case TaskState.CANCELED:
+                case TaskState.ERROR:
+                    const toCall = this._reject;
+                    async(toCall.bind(null, this._error))();
+                    break;
+                default:
+                    triggered = false;
+                    break;
+            }
+            if (triggered) {
+                this._resolve = undefined;
+                this._reject = undefined;
+            }
+        }
+    }
+    _notifyObserver(observer) {
+        const externalState = taskStateFromInternalTaskState(this._state);
+        switch (externalState) {
+            case TaskState.RUNNING:
+            case TaskState.PAUSED:
+                if (observer.next) {
+                    async(observer.next.bind(observer, this.snapshot))();
+                }
+                break;
+            case TaskState.SUCCESS:
+                if (observer.complete) {
+                    async(observer.complete.bind(observer))();
+                }
+                break;
+            case TaskState.CANCELED:
+            case TaskState.ERROR:
+                if (observer.error) {
+                    async(observer.error.bind(observer, this._error))();
+                }
+                break;
+            default:
+                // TODO(andysoto): assert(false);
+                if (observer.error) {
+                    async(observer.error.bind(observer, this._error))();
+                }
+        }
+    }
+    /**
+     * Resumes a paused task. Has no effect on a currently running or failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    resume() {
+        const valid = this._state === "paused" /* InternalTaskState.PAUSED */ ||
+            this._state === "pausing" /* InternalTaskState.PAUSING */;
+        if (valid) {
+            this._transition("running" /* InternalTaskState.RUNNING */);
+        }
+        return valid;
+    }
+    /**
+     * Pauses a currently running task. Has no effect on a paused or failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    pause() {
+        const valid = this._state === "running" /* InternalTaskState.RUNNING */;
+        if (valid) {
+            this._transition("pausing" /* InternalTaskState.PAUSING */);
+        }
+        return valid;
+    }
+    /**
+     * Cancels a currently running or paused task. Has no effect on a complete or
+     * failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    cancel() {
+        const valid = this._state === "running" /* InternalTaskState.RUNNING */ ||
+            this._state === "pausing" /* InternalTaskState.PAUSING */;
+        if (valid) {
+            this._transition("canceling" /* InternalTaskState.CANCELING */);
+        }
+        return valid;
+    }
+}
+
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Provides methods to interact with a bucket in the Firebase Storage service.
+ * @internal
+ * @param _location - An fbs.location, or the URL at
+ *     which to base this object, in one of the following forms:
+ *         gs://<bucket>/<object-path>
+ *         http[s]://firebasestorage.googleapis.com/
+ *                     <api-version>/b/<bucket>/o/<object-path>
+ *     Any query or fragment strings will be ignored in the http[s]
+ *     format. If no value is passed, the storage object will use a URL based on
+ *     the project ID of the base firebase.App instance.
+ */
+class Reference {
+    constructor(_service, location) {
+        this._service = _service;
+        if (location instanceof Location) {
+            this._location = location;
+        }
+        else {
+            this._location = Location.makeFromUrl(location, _service.host);
+        }
+    }
+    /**
+     * Returns the URL for the bucket and path this object references,
+     *     in the form gs://<bucket>/<object-path>
+     * @override
+     */
+    toString() {
+        return 'gs://' + this._location.bucket + '/' + this._location.path;
+    }
+    _newRef(service, location) {
+        return new Reference(service, location);
+    }
+    /**
+     * A reference to the root of this object's bucket.
+     */
+    get root() {
+        const location = new Location(this._location.bucket, '');
+        return this._newRef(this._service, location);
+    }
+    /**
+     * The name of the bucket containing this reference's object.
+     */
+    get bucket() {
+        return this._location.bucket;
+    }
+    /**
+     * The full path of this object.
+     */
+    get fullPath() {
+        return this._location.path;
+    }
+    /**
+     * The short name of this object, which is the last component of the full path.
+     * For example, if fullPath is 'full/path/image.png', name is 'image.png'.
+     */
+    get name() {
+        return lastComponent(this._location.path);
+    }
+    /**
+     * The `StorageService` instance this `StorageReference` is associated with.
+     */
+    get storage() {
+        return this._service;
+    }
+    /**
+     * A `StorageReference` pointing to the parent location of this `StorageReference`, or null if
+     * this reference is the root.
+     */
+    get parent() {
+        const newPath = parent(this._location.path);
+        if (newPath === null) {
+            return null;
+        }
+        const location = new Location(this._location.bucket, newPath);
+        return new Reference(this._service, location);
+    }
+    /**
+     * Utility function to throw an error in methods that do not accept a root reference.
+     */
+    _throwIfRoot(name) {
+        if (this._location.path === '') {
+            throw invalidRootOperation(name);
+        }
+    }
+}
+/**
+ * Download the bytes at the object's location.
+ * @returns A Promise containing the downloaded bytes.
+ */
+function getBytesInternal(ref, maxDownloadSizeBytes) {
+    ref._throwIfRoot('getBytes');
+    const requestInfo = getBytes$1(ref.storage, ref._location, maxDownloadSizeBytes);
+    return ref.storage
+        .makeRequestWithTokens(requestInfo, newBytesConnection)
+        .then(bytes => maxDownloadSizeBytes !== undefined
+        ? // GCS may not honor the Range header for small files
+            bytes.slice(0, maxDownloadSizeBytes)
+        : bytes);
+}
+/**
+ * Download the bytes at the object's location.
+ * @returns A Promise containing the downloaded blob.
+ */
+function getBlobInternal(ref, maxDownloadSizeBytes) {
+    ref._throwIfRoot('getBlob');
+    const requestInfo = getBytes$1(ref.storage, ref._location, maxDownloadSizeBytes);
+    return ref.storage
+        .makeRequestWithTokens(requestInfo, newBlobConnection)
+        .then(blob => maxDownloadSizeBytes !== undefined
+        ? // GCS may not honor the Range header for small files
+            blob.slice(0, maxDownloadSizeBytes)
+        : blob);
+}
+/**
+ * Uploads data to this object's location.
+ * The upload is not resumable.
+ *
+ * @param ref - StorageReference where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the newly uploaded data.
+ * @returns A Promise containing an UploadResult
+ */
+function uploadBytes$1(ref, data, metadata) {
+    ref._throwIfRoot('uploadBytes');
+    const requestInfo = multipartUpload(ref.storage, ref._location, getMappings(), new FbsBlob(data, true), metadata);
+    return ref.storage
+        .makeRequestWithTokens(requestInfo, newTextConnection)
+        .then(finalMetadata => {
+        return {
+            metadata: finalMetadata,
+            ref
+        };
+    });
+}
+/**
+ * Uploads data to this object's location.
+ * The upload can be paused and resumed, and exposes progress updates.
+ * @public
+ * @param ref - StorageReference where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the newly uploaded data.
+ * @returns An UploadTask
+ */
+function uploadBytesResumable$1(ref, data, metadata) {
+    ref._throwIfRoot('uploadBytesResumable');
+    return new UploadTask(ref, new FbsBlob(data), metadata);
+}
+/**
+ * Uploads a string to this object's location.
+ * The upload is not resumable.
+ * @public
+ * @param ref - StorageReference where string should be uploaded.
+ * @param value - The string to upload.
+ * @param format - The format of the string to upload.
+ * @param metadata - Metadata for the newly uploaded string.
+ * @returns A Promise containing an UploadResult
+ */
+function uploadString$1(ref, value, format = StringFormat.RAW, metadata) {
+    ref._throwIfRoot('uploadString');
+    const data = dataFromString(format, value);
+    const metadataClone = { ...metadata };
+    if (metadataClone['contentType'] == null && data.contentType != null) {
+        metadataClone['contentType'] = data.contentType;
+    }
+    return uploadBytes$1(ref, data.data, metadataClone);
+}
+/**
+ * List all items (files) and prefixes (folders) under this storage reference.
+ *
+ * This is a helper method for calling list() repeatedly until there are
+ * no more results. The default pagination size is 1000.
+ *
+ * Note: The results may not be consistent if objects are changed while this
+ * operation is running.
+ *
+ * Warning: listAll may potentially consume too many resources if there are
+ * too many results.
+ * @public
+ * @param ref - StorageReference to get list from.
+ *
+ * @returns A Promise that resolves with all the items and prefixes under
+ *      the current storage reference. `prefixes` contains references to
+ *      sub-directories and `items` contains references to objects in this
+ *      folder. `nextPageToken` is never returned.
+ */
+function listAll$1(ref) {
+    const accumulator = {
+        prefixes: [],
+        items: []
+    };
+    return listAllHelper(ref, accumulator).then(() => accumulator);
+}
+/**
+ * Separated from listAll because async functions can't use "arguments".
+ * @param ref
+ * @param accumulator
+ * @param pageToken
+ */
+async function listAllHelper(ref, accumulator, pageToken) {
+    const opt = {
+        // maxResults is 1000 by default.
+        pageToken
+    };
+    const nextPage = await list$1(ref, opt);
+    accumulator.prefixes.push(...nextPage.prefixes);
+    accumulator.items.push(...nextPage.items);
+    if (nextPage.nextPageToken != null) {
+        await listAllHelper(ref, accumulator, nextPage.nextPageToken);
+    }
+}
+/**
+ * List items (files) and prefixes (folders) under this storage reference.
+ *
+ * List API is only available for Firebase Rules Version 2.
+ *
+ * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'
+ * delimited folder structure.
+ * Refer to GCS's List API if you want to learn more.
+ *
+ * To adhere to Firebase Rules's Semantics, Firebase Storage does not
+ * support objects whose paths end with "/" or contain two consecutive
+ * "/"s. Firebase Storage List API will filter these unsupported objects.
+ * list() may fail if there are too many unsupported objects in the bucket.
+ * @public
+ *
+ * @param ref - StorageReference to get list from.
+ * @param options - See ListOptions for details.
+ * @returns A Promise that resolves with the items and prefixes.
+ *      `prefixes` contains references to sub-folders and `items`
+ *      contains references to objects in this folder. `nextPageToken`
+ *      can be used to get the rest of the results.
+ */
+function list$1(ref, options) {
+    if (options != null) {
+        if (typeof options.maxResults === 'number') {
+            validateNumber('options.maxResults', 
+            /* minValue= */ 1, 
+            /* maxValue= */ 1000, options.maxResults);
+        }
+    }
+    const op = options || {};
+    const requestInfo = list$2(ref.storage, ref._location, 
+    /*delimiter= */ '/', op.pageToken, op.maxResults);
+    return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);
+}
+/**
+ * A `Promise` that resolves with the metadata for this object. If this
+ * object doesn't exist or metadata cannot be retrieved, the promise is
+ * rejected.
+ * @public
+ * @param ref - StorageReference to get metadata from.
+ */
+function getMetadata$1(ref) {
+    ref._throwIfRoot('getMetadata');
+    const requestInfo = getMetadata$2(ref.storage, ref._location, getMappings());
+    return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);
+}
+/**
+ * Updates the metadata for this object.
+ * @public
+ * @param ref - StorageReference to update metadata for.
+ * @param metadata - The new metadata for the object.
+ *     Only values that have been explicitly set will be changed. Explicitly
+ *     setting a value to null will remove the metadata.
+ * @returns A `Promise` that resolves
+ *     with the new metadata for this object.
+ *     See `firebaseStorage.Reference.prototype.getMetadata`
+ */
+function updateMetadata$1(ref, metadata) {
+    ref._throwIfRoot('updateMetadata');
+    const requestInfo = updateMetadata$2(ref.storage, ref._location, metadata, getMappings());
+    return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);
+}
+/**
+ * Returns the download URL for the given Reference.
+ * @public
+ * @returns A `Promise` that resolves with the download
+ *     URL for this object.
+ */
+function getDownloadURL$1(ref) {
+    ref._throwIfRoot('getDownloadURL');
+    const requestInfo = getDownloadUrl(ref.storage, ref._location, getMappings());
+    return ref.storage
+        .makeRequestWithTokens(requestInfo, newTextConnection)
+        .then(url => {
+        if (url === null) {
+            throw noDownloadURL();
+        }
+        return url;
+    });
+}
+/**
+ * Deletes the object at this location.
+ * @public
+ * @param ref - StorageReference for object to delete.
+ * @returns A `Promise` that resolves if the deletion succeeds.
+ */
+function deleteObject$1(ref) {
+    ref._throwIfRoot('deleteObject');
+    const requestInfo = deleteObject$2(ref.storage, ref._location);
+    return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);
+}
+/**
+ * Returns reference for object obtained by appending `childPath` to `ref`.
+ *
+ * @param ref - StorageReference to get child of.
+ * @param childPath - Child path from provided ref.
+ * @returns A reference to the object obtained by
+ * appending childPath, removing any duplicate, beginning, or trailing
+ * slashes.
+ *
+ */
+function _getChild$1(ref, childPath) {
+    const newPath = child(ref._location.path, childPath);
+    const location = new Location(ref._location.bucket, newPath);
+    return new Reference(ref.storage, location);
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+function isUrl(path) {
+    return /^[A-Za-z]+:\/\//.test(path);
+}
+/**
+ * Returns a firebaseStorage.Reference for the given url.
+ */
+function refFromURL(service, url) {
+    return new Reference(service, url);
+}
+/**
+ * Returns a firebaseStorage.Reference for the given path in the default
+ * bucket.
+ */
+function refFromPath(ref, path) {
+    if (ref instanceof FirebaseStorageImpl) {
+        const service = ref;
+        if (service._bucket == null) {
+            throw noDefaultBucket();
+        }
+        const reference = new Reference(service, service._bucket);
+        if (path != null) {
+            return refFromPath(reference, path);
+        }
+        else {
+            return reference;
+        }
+    }
+    else {
+        // ref is a Reference
+        if (path !== undefined) {
+            return _getChild$1(ref, path);
+        }
+        else {
+            return ref;
+        }
+    }
+}
+function ref$1(serviceOrRef, pathOrUrl) {
+    if (pathOrUrl && isUrl(pathOrUrl)) {
+        if (serviceOrRef instanceof FirebaseStorageImpl) {
+            return refFromURL(serviceOrRef, pathOrUrl);
+        }
+        else {
+            throw invalidArgument('To use ref(service, url), the first argument must be a Storage instance.');
+        }
+    }
+    else {
+        return refFromPath(serviceOrRef, pathOrUrl);
+    }
+}
+function extractBucket(host, config) {
+    const bucketString = config?.[CONFIG_STORAGE_BUCKET_KEY];
+    if (bucketString == null) {
+        return null;
+    }
+    return Location.makeFromBucketSpec(bucketString, host);
+}
+function connectStorageEmulator$1(storage, host, port, options = {}) {
+    storage.host = `${host}:${port}`;
+    const useSsl = util.isCloudWorkstation(host);
+    // Workaround to get cookies in Firebase Studio
+    if (useSsl) {
+        void util.pingServer(`https://${storage.host}/b`);
+        util.updateEmulatorBanner('Storage', true);
+    }
+    storage._isUsingEmulator = true;
+    storage._protocol = useSsl ? 'https' : 'http';
+    const { mockUserToken } = options;
+    if (mockUserToken) {
+        storage._overrideAuthToken =
+            typeof mockUserToken === 'string'
+                ? mockUserToken
+                : util.createMockUserToken(mockUserToken, storage.app.options.projectId);
+    }
+}
+/**
+ * A service that provides Firebase Storage Reference instances.
+ * @param opt_url - gs:// url to a custom Storage Bucket
+ *
+ * @internal
+ */
+class FirebaseStorageImpl {
+    constructor(
+    /**
+     * FirebaseApp associated with this StorageService instance.
+     */
+    app, _authProvider, 
+    /**
+     * @internal
+     */
+    _appCheckProvider, 
+    /**
+     * @internal
+     */
+    _url, _firebaseVersion, _isUsingEmulator = false) {
+        this.app = app;
+        this._authProvider = _authProvider;
+        this._appCheckProvider = _appCheckProvider;
+        this._url = _url;
+        this._firebaseVersion = _firebaseVersion;
+        this._isUsingEmulator = _isUsingEmulator;
+        this._bucket = null;
+        /**
+         * This string can be in the formats:
+         * - host
+         * - host:port
+         */
+        this._host = DEFAULT_HOST;
+        this._protocol = 'https';
+        this._appId = null;
+        this._deleted = false;
+        this._maxOperationRetryTime = DEFAULT_MAX_OPERATION_RETRY_TIME;
+        this._maxUploadRetryTime = DEFAULT_MAX_UPLOAD_RETRY_TIME;
+        this._requests = new Set();
+        if (_url != null) {
+            this._bucket = Location.makeFromBucketSpec(_url, this._host);
+        }
+        else {
+            this._bucket = extractBucket(this._host, this.app.options);
+        }
+    }
+    /**
+     * The host string for this service, in the form of `host` or
+     * `host:port`.
+     */
+    get host() {
+        return this._host;
+    }
+    set host(host) {
+        this._host = host;
+        if (this._url != null) {
+            this._bucket = Location.makeFromBucketSpec(this._url, host);
+        }
+        else {
+            this._bucket = extractBucket(host, this.app.options);
+        }
+    }
+    /**
+     * The maximum time to retry uploads in milliseconds.
+     */
+    get maxUploadRetryTime() {
+        return this._maxUploadRetryTime;
+    }
+    set maxUploadRetryTime(time) {
+        validateNumber('time', 
+        /* minValue=*/ 0, 
+        /* maxValue= */ Number.POSITIVE_INFINITY, time);
+        this._maxUploadRetryTime = time;
+    }
+    /**
+     * The maximum time to retry operations other than uploads or downloads in
+     * milliseconds.
+     */
+    get maxOperationRetryTime() {
+        return this._maxOperationRetryTime;
+    }
+    set maxOperationRetryTime(time) {
+        validateNumber('time', 
+        /* minValue=*/ 0, 
+        /* maxValue= */ Number.POSITIVE_INFINITY, time);
+        this._maxOperationRetryTime = time;
+    }
+    async _getAuthToken() {
+        if (this._overrideAuthToken) {
+            return this._overrideAuthToken;
+        }
+        const auth = this._authProvider.getImmediate({ optional: true });
+        if (auth) {
+            const tokenData = await auth.getToken();
+            if (tokenData !== null) {
+                return tokenData.accessToken;
+            }
+        }
+        return null;
+    }
+    async _getAppCheckToken() {
+        if (app._isFirebaseServerApp(this.app) && this.app.settings.appCheckToken) {
+            return this.app.settings.appCheckToken;
+        }
+        const appCheck = this._appCheckProvider.getImmediate({ optional: true });
+        if (appCheck) {
+            const result = await appCheck.getToken();
+            // TODO: What do we want to do if there is an error getting the token?
+            // Context: appCheck.getToken() will never throw even if an error happened. In the error case, a dummy token will be
+            // returned along with an error field describing the error. In general, we shouldn't care about the error condition and just use
+            // the token (actual or dummy) to send requests.
+            return result.token;
+        }
+        return null;
+    }
+    /**
+     * Stop running requests and prevent more from being created.
+     */
+    _delete() {
+        if (!this._deleted) {
+            this._deleted = true;
+            this._requests.forEach(request => request.cancel());
+            this._requests.clear();
+        }
+        return Promise.resolve();
+    }
+    /**
+     * Returns a new firebaseStorage.Reference object referencing this StorageService
+     * at the given Location.
+     */
+    _makeStorageReference(loc) {
+        return new Reference(this, loc);
+    }
+    /**
+     * @param requestInfo - HTTP RequestInfo object
+     * @param authToken - Firebase auth token
+     */
+    _makeRequest(requestInfo, requestFactory, authToken, appCheckToken, retry = true) {
+        if (!this._deleted) {
+            const request = makeRequest(requestInfo, this._appId, authToken, appCheckToken, requestFactory, this._firebaseVersion, retry, this._isUsingEmulator);
+            this._requests.add(request);
+            // Request removes itself from set when complete.
+            request.getPromise().then(() => this._requests.delete(request), () => this._requests.delete(request));
+            return request;
+        }
+        else {
+            return new FailRequest(appDeleted());
+        }
+    }
+    async makeRequestWithTokens(requestInfo, requestFactory) {
+        const [authToken, appCheckToken] = await Promise.all([
+            this._getAuthToken(),
+            this._getAppCheckToken()
+        ]);
+        return this._makeRequest(requestInfo, requestFactory, authToken, appCheckToken).getPromise();
+    }
+}
+
+const name = "@firebase/storage";
+const version = "0.14.0";
+
+/**
+ * @license
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Type constant for Firebase Storage.
+ */
+const STORAGE_TYPE = 'storage';
+
+/**
+ * @license
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Downloads the data at the object's location. Returns an error if the object
+ * is not found.
+ *
+ * To use this functionality, you have to whitelist your app's origin in your
+ * Cloud Storage bucket. See also
+ * https://cloud.google.com/storage/docs/configuring-cors
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A Promise containing the object's bytes
+ */
+function getBytes(ref, maxDownloadSizeBytes) {
+    ref = util.getModularInstance(ref);
+    return getBytesInternal(ref, maxDownloadSizeBytes);
+}
+/**
+ * Uploads data to this object's location.
+ * The upload is not resumable.
+ * @public
+ * @param ref - {@link StorageReference} where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the data to upload.
+ * @returns A Promise containing an UploadResult
+ */
+function uploadBytes(ref, data, metadata) {
+    ref = util.getModularInstance(ref);
+    return uploadBytes$1(ref, data, metadata);
+}
+/**
+ * Uploads a string to this object's location.
+ * The upload is not resumable.
+ * @public
+ * @param ref - {@link StorageReference} where string should be uploaded.
+ * @param value - The string to upload.
+ * @param format - The format of the string to upload.
+ * @param metadata - Metadata for the string to upload.
+ * @returns A Promise containing an UploadResult
+ */
+function uploadString(ref, value, format, metadata) {
+    ref = util.getModularInstance(ref);
+    return uploadString$1(ref, value, format, metadata);
+}
+/**
+ * Uploads data to this object's location.
+ * The upload can be paused and resumed, and exposes progress updates.
+ * @public
+ * @param ref - {@link StorageReference} where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the data to upload.
+ * @returns An UploadTask
+ */
+function uploadBytesResumable(ref, data, metadata) {
+    ref = util.getModularInstance(ref);
+    return uploadBytesResumable$1(ref, data, metadata);
+}
+/**
+ * A `Promise` that resolves with the metadata for this object. If this
+ * object doesn't exist or metadata cannot be retrieved, the promise is
+ * rejected.
+ * @public
+ * @param ref - {@link StorageReference} to get metadata from.
+ */
+function getMetadata(ref) {
+    ref = util.getModularInstance(ref);
+    return getMetadata$1(ref);
+}
+/**
+ * Updates the metadata for this object.
+ * @public
+ * @param ref - {@link StorageReference} to update metadata for.
+ * @param metadata - The new metadata for the object.
+ *     Only values that have been explicitly set will be changed. Explicitly
+ *     setting a value to null will remove the metadata.
+ * @returns A `Promise` that resolves with the new metadata for this object.
+ */
+function updateMetadata(ref, metadata) {
+    ref = util.getModularInstance(ref);
+    return updateMetadata$1(ref, metadata);
+}
+/**
+ * List items (files) and prefixes (folders) under this storage reference.
+ *
+ * List API is only available for Firebase Rules Version 2.
+ *
+ * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'
+ * delimited folder structure.
+ * Refer to GCS's List API if you want to learn more.
+ *
+ * To adhere to Firebase Rules's Semantics, Firebase Storage does not
+ * support objects whose paths end with "/" or contain two consecutive
+ * "/"s. Firebase Storage List API will filter these unsupported objects.
+ * list() may fail if there are too many unsupported objects in the bucket.
+ * @public
+ *
+ * @param ref - {@link StorageReference} to get list from.
+ * @param options - See {@link ListOptions} for details.
+ * @returns A `Promise` that resolves with the items and prefixes.
+ *      `prefixes` contains references to sub-folders and `items`
+ *      contains references to objects in this folder. `nextPageToken`
+ *      can be used to get the rest of the results.
+ */
+function list(ref, options) {
+    ref = util.getModularInstance(ref);
+    return list$1(ref, options);
+}
+/**
+ * List all items (files) and prefixes (folders) under this storage reference.
+ *
+ * This is a helper method for calling list() repeatedly until there are
+ * no more results. The default pagination size is 1000.
+ *
+ * Note: The results may not be consistent if objects are changed while this
+ * operation is running.
+ *
+ * Warning: `listAll` may potentially consume too many resources if there are
+ * too many results.
+ * @public
+ * @param ref - {@link StorageReference} to get list from.
+ *
+ * @returns A `Promise` that resolves with all the items and prefixes under
+ *      the current storage reference. `prefixes` contains references to
+ *      sub-directories and `items` contains references to objects in this
+ *      folder. `nextPageToken` is never returned.
+ */
+function listAll(ref) {
+    ref = util.getModularInstance(ref);
+    return listAll$1(ref);
+}
+/**
+ * Returns the download URL for the given {@link StorageReference}.
+ * @public
+ * @param ref - {@link StorageReference} to get the download URL for.
+ * @returns A `Promise` that resolves with the download
+ *     URL for this object.
+ */
+function getDownloadURL(ref) {
+    ref = util.getModularInstance(ref);
+    return getDownloadURL$1(ref);
+}
+/**
+ * Deletes the object at this location.
+ * @public
+ * @param ref - {@link StorageReference} for object to delete.
+ * @returns A `Promise` that resolves if the deletion succeeds.
+ */
+function deleteObject(ref) {
+    ref = util.getModularInstance(ref);
+    return deleteObject$1(ref);
+}
+function ref(serviceOrRef, pathOrUrl) {
+    serviceOrRef = util.getModularInstance(serviceOrRef);
+    return ref$1(serviceOrRef, pathOrUrl);
+}
+/**
+ * @internal
+ */
+function _getChild(ref, childPath) {
+    return _getChild$1(ref, childPath);
+}
+/**
+ * Gets a {@link FirebaseStorage} instance for the given Firebase app.
+ * @public
+ * @param app - Firebase app to get {@link FirebaseStorage} instance for.
+ * @param bucketUrl - The gs:// url to your Firebase Storage Bucket.
+ * If not passed, uses the app's default Storage Bucket.
+ * @returns A {@link FirebaseStorage} instance.
+ */
+function getStorage(app$1 = app.getApp(), bucketUrl) {
+    app$1 = util.getModularInstance(app$1);
+    const storageProvider = app._getProvider(app$1, STORAGE_TYPE);
+    const storageInstance = storageProvider.getImmediate({
+        identifier: bucketUrl
+    });
+    const emulator = util.getDefaultEmulatorHostnameAndPort('storage');
+    if (emulator) {
+        connectStorageEmulator(storageInstance, ...emulator);
+    }
+    return storageInstance;
+}
+/**
+ * Modify this {@link FirebaseStorage} instance to communicate with the Cloud Storage emulator.
+ *
+ * @param storage - The {@link FirebaseStorage} instance
+ * @param host - The emulator host (ex: localhost)
+ * @param port - The emulator port (ex: 5001)
+ * @param options - Emulator options. `options.mockUserToken` is the mock auth
+ * token to use for unit testing Security Rules.
+ * @public
+ */
+function connectStorageEmulator(storage, host, port, options = {}) {
+    connectStorageEmulator$1(storage, host, port, options);
+}
+
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Downloads the data at the object's location. Returns an error if the object
+ * is not found.
+ *
+ * To use this functionality, you have to whitelist your app's origin in your
+ * Cloud Storage bucket. See also
+ * https://cloud.google.com/storage/docs/configuring-cors
+ *
+ * This API is not available in Node.
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A Promise that resolves with a Blob containing the object's bytes
+ */
+function getBlob(ref, maxDownloadSizeBytes) {
+    ref = util.getModularInstance(ref);
+    return getBlobInternal(ref, maxDownloadSizeBytes);
+}
+/**
+ * Downloads the data at the object's location. Raises an error event if the
+ * object is not found.
+ *
+ * This API is only available in Node.
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A stream with the object's data as bytes
+ */
+function getStream(ref, maxDownloadSizeBytes) {
+    throw new Error('getStream() is only supported by NodeJS builds');
+}
+
+/**
+ * Cloud Storage for Firebase
+ *
+ * @packageDocumentation
+ */
+function factory(container, { instanceIdentifier: url }) {
+    const app$1 = container.getProvider('app').getImmediate();
+    const authProvider = container.getProvider('auth-internal');
+    const appCheckProvider = container.getProvider('app-check-internal');
+    return new FirebaseStorageImpl(app$1, authProvider, appCheckProvider, url, app.SDK_VERSION);
+}
+function registerStorage() {
+    app._registerComponent(new component.Component(STORAGE_TYPE, factory, "PUBLIC" /* ComponentType.PUBLIC */).setMultipleInstances(true));
+    //RUNTIME_ENV will be replaced during the compilation to "node" for nodejs and an empty string for browser
+    app.registerVersion(name, version, '');
+    // BUILD_TARGET will be replaced by values like esm, cjs, etc during the compilation
+    app.registerVersion(name, version, 'cjs2020');
+}
+registerStorage();
+
+exports.StorageError = StorageError;
+exports.StringFormat = StringFormat;
+exports._FbsBlob = FbsBlob;
+exports._Location = Location;
+exports._TaskEvent = TaskEvent;
+exports._TaskState = TaskState;
+exports._UploadTask = UploadTask;
+exports._dataFromString = dataFromString;
+exports._getChild = _getChild;
+exports._invalidArgument = invalidArgument;
+exports._invalidRootOperation = invalidRootOperation;
+exports.connectStorageEmulator = connectStorageEmulator;
+exports.deleteObject = deleteObject;
+exports.getBlob = getBlob;
+exports.getBytes = getBytes;
+exports.getDownloadURL = getDownloadURL;
+exports.getMetadata = getMetadata;
+exports.getStorage = getStorage;
+exports.getStream = getStream;
+exports.list = list;
+exports.listAll = listAll;
+exports.ref = ref;
+exports.updateMetadata = updateMetadata;
+exports.uploadBytes = uploadBytes;
+exports.uploadBytesResumable = uploadBytesResumable;
+exports.uploadString = uploadString;
+//# sourceMappingURL=index.browser.cjs.js.map
diff --git a/frontend-old/node_modules/@firebase/storage/dist/index.browser.cjs.js.map b/frontend-old/node_modules/@firebase/storage/dist/index.browser.cjs.js.map
new file mode 100644
index 0000000..fbbe7eb
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/index.browser.cjs.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.browser.cjs.js","sources":["../src/implementation/constants.ts","../src/implementation/error.ts","../src/implementation/location.ts","../src/implementation/failrequest.ts","../src/implementation/backoff.ts","../src/implementation/type.ts","../src/implementation/url.ts","../src/implementation/connection.ts","../src/implementation/utils.ts","../src/implementation/request.ts","../src/implementation/fs.ts","../src/platform/browser/base64.ts","../src/implementation/string.ts","../src/implementation/blob.ts","../src/implementation/json.ts","../src/implementation/path.ts","../src/implementation/metadata.ts","../src/implementation/list.ts","../src/implementation/requestinfo.ts","../src/implementation/requests.ts","../src/implementation/taskenums.ts","../src/implementation/observer.ts","../src/implementation/async.ts","../src/platform/browser/connection.ts","../src/task.ts","../src/reference.ts","../src/service.ts","../src/constants.ts","../src/api.ts","../src/api.browser.ts","../src/index.ts"],"sourcesContent":["/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * @fileoverview Constants used in the Firebase Storage library.\n */\n\n/**\n * Domain name for firebase storage.\n */\nexport const DEFAULT_HOST = 'firebasestorage.googleapis.com';\n\n/**\n * The key in Firebase config json for the storage bucket.\n */\nexport const CONFIG_STORAGE_BUCKET_KEY = 'storageBucket';\n\n/**\n * 2 minutes\n *\n * The timeout for all operations except upload.\n */\nexport const DEFAULT_MAX_OPERATION_RETRY_TIME = 2 * 60 * 1000;\n\n/**\n * 10 minutes\n *\n * The timeout for upload.\n */\nexport const DEFAULT_MAX_UPLOAD_RETRY_TIME = 10 * 60 * 1000;\n\n/**\n * 1 second\n */\nexport const DEFAULT_MIN_SLEEP_TIME_MILLIS = 1000;\n\n/**\n * This is the value of Number.MIN_SAFE_INTEGER, which is not well supported\n * enough for us to use it directly.\n */\nexport const MIN_SAFE_INTEGER = -9007199254740991;\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { FirebaseError } from '@firebase/util';\n\nimport { CONFIG_STORAGE_BUCKET_KEY } from './constants';\n\n/**\n * An error returned by the Firebase Storage SDK.\n * @public\n */\nexport class StorageError extends FirebaseError {\n  private readonly _baseMessage: string;\n  /**\n   * Stores custom error data unique to the `StorageError`.\n   */\n  customData: { serverResponse: string | null } = { serverResponse: null };\n\n  /**\n   * @param code - A `StorageErrorCode` string to be prefixed with 'storage/' and\n   *  added to the end of the message.\n   * @param message  - Error message.\n   * @param status_ - Corresponding HTTP Status Code\n   */\n  constructor(code: StorageErrorCode, message: string, private status_ = 0) {\n    super(\n      prependCode(code),\n      `Firebase Storage: ${message} (${prependCode(code)})`\n    );\n    this._baseMessage = this.message;\n    // Without this, `instanceof StorageError`, in tests for example,\n    // returns false.\n    Object.setPrototypeOf(this, StorageError.prototype);\n  }\n\n  get status(): number {\n    return this.status_;\n  }\n\n  set status(status: number) {\n    this.status_ = status;\n  }\n\n  /**\n   * Compares a `StorageErrorCode` against this error's code, filtering out the prefix.\n   */\n  _codeEquals(code: StorageErrorCode): boolean {\n    return prependCode(code) === this.code;\n  }\n\n  /**\n   * Optional response message that was added by the server.\n   */\n  get serverResponse(): null | string {\n    return this.customData.serverResponse;\n  }\n\n  set serverResponse(serverResponse: string | null) {\n    this.customData.serverResponse = serverResponse;\n    if (this.customData.serverResponse) {\n      this.message = `${this._baseMessage}\\n${this.customData.serverResponse}`;\n    } else {\n      this.message = this._baseMessage;\n    }\n  }\n}\n\nexport const errors = {};\n\n/**\n * @public\n * Error codes that can be attached to `StorageError` objects.\n */\nexport enum StorageErrorCode {\n  // Shared between all platforms\n  UNKNOWN = 'unknown',\n  OBJECT_NOT_FOUND = 'object-not-found',\n  BUCKET_NOT_FOUND = 'bucket-not-found',\n  PROJECT_NOT_FOUND = 'project-not-found',\n  QUOTA_EXCEEDED = 'quota-exceeded',\n  UNAUTHENTICATED = 'unauthenticated',\n  UNAUTHORIZED = 'unauthorized',\n  UNAUTHORIZED_APP = 'unauthorized-app',\n  RETRY_LIMIT_EXCEEDED = 'retry-limit-exceeded',\n  INVALID_CHECKSUM = 'invalid-checksum',\n  CANCELED = 'canceled',\n  // JS specific\n  INVALID_EVENT_NAME = 'invalid-event-name',\n  INVALID_URL = 'invalid-url',\n  INVALID_DEFAULT_BUCKET = 'invalid-default-bucket',\n  NO_DEFAULT_BUCKET = 'no-default-bucket',\n  CANNOT_SLICE_BLOB = 'cannot-slice-blob',\n  SERVER_FILE_WRONG_SIZE = 'server-file-wrong-size',\n  NO_DOWNLOAD_URL = 'no-download-url',\n  INVALID_ARGUMENT = 'invalid-argument',\n  INVALID_ARGUMENT_COUNT = 'invalid-argument-count',\n  APP_DELETED = 'app-deleted',\n  INVALID_ROOT_OPERATION = 'invalid-root-operation',\n  INVALID_FORMAT = 'invalid-format',\n  INTERNAL_ERROR = 'internal-error',\n  UNSUPPORTED_ENVIRONMENT = 'unsupported-environment'\n}\n\nexport function prependCode(code: StorageErrorCode): string {\n  return 'storage/' + code;\n}\n\nexport function unknown(): StorageError {\n  const message =\n    'An unknown error occurred, please check the error payload for ' +\n    'server response.';\n  return new StorageError(StorageErrorCode.UNKNOWN, message);\n}\n\nexport function objectNotFound(path: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.OBJECT_NOT_FOUND,\n    \"Object '\" + path + \"' does not exist.\"\n  );\n}\n\nexport function bucketNotFound(bucket: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.BUCKET_NOT_FOUND,\n    \"Bucket '\" + bucket + \"' does not exist.\"\n  );\n}\n\nexport function projectNotFound(project: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.PROJECT_NOT_FOUND,\n    \"Project '\" + project + \"' does not exist.\"\n  );\n}\n\nexport function quotaExceeded(bucket: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.QUOTA_EXCEEDED,\n    \"Quota for bucket '\" +\n      bucket +\n      \"' exceeded, please view quota on \" +\n      'https://firebase.google.com/pricing/.'\n  );\n}\n\nexport function unauthenticated(): StorageError {\n  const message =\n    'User is not authenticated, please authenticate using Firebase ' +\n    'Authentication and try again.';\n  return new StorageError(StorageErrorCode.UNAUTHENTICATED, message);\n}\n\nexport function unauthorizedApp(): StorageError {\n  return new StorageError(\n    StorageErrorCode.UNAUTHORIZED_APP,\n    'This app does not have permission to access Firebase Storage on this project.'\n  );\n}\n\nexport function unauthorized(path: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.UNAUTHORIZED,\n    \"User does not have permission to access '\" + path + \"'.\"\n  );\n}\n\nexport function retryLimitExceeded(): StorageError {\n  return new StorageError(\n    StorageErrorCode.RETRY_LIMIT_EXCEEDED,\n    'Max retry time for operation exceeded, please try again.'\n  );\n}\n\nexport function invalidChecksum(\n  path: string,\n  checksum: string,\n  calculated: string\n): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_CHECKSUM,\n    \"Uploaded/downloaded object '\" +\n      path +\n      \"' has checksum '\" +\n      checksum +\n      \"' which does not match '\" +\n      calculated +\n      \"'. Please retry the upload/download.\"\n  );\n}\n\nexport function canceled(): StorageError {\n  return new StorageError(\n    StorageErrorCode.CANCELED,\n    'User canceled the upload/download.'\n  );\n}\n\nexport function invalidEventName(name: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_EVENT_NAME,\n    \"Invalid event name '\" + name + \"'.\"\n  );\n}\n\nexport function invalidUrl(url: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_URL,\n    \"Invalid URL '\" + url + \"'.\"\n  );\n}\n\nexport function invalidDefaultBucket(bucket: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_DEFAULT_BUCKET,\n    \"Invalid default bucket '\" + bucket + \"'.\"\n  );\n}\n\nexport function noDefaultBucket(): StorageError {\n  return new StorageError(\n    StorageErrorCode.NO_DEFAULT_BUCKET,\n    'No default bucket ' +\n      \"found. Did you set the '\" +\n      CONFIG_STORAGE_BUCKET_KEY +\n      \"' property when initializing the app?\"\n  );\n}\n\nexport function cannotSliceBlob(): StorageError {\n  return new StorageError(\n    StorageErrorCode.CANNOT_SLICE_BLOB,\n    'Cannot slice blob for upload. Please retry the upload.'\n  );\n}\n\nexport function serverFileWrongSize(): StorageError {\n  return new StorageError(\n    StorageErrorCode.SERVER_FILE_WRONG_SIZE,\n    'Server recorded incorrect upload file size, please retry the upload.'\n  );\n}\n\nexport function noDownloadURL(): StorageError {\n  return new StorageError(\n    StorageErrorCode.NO_DOWNLOAD_URL,\n    'The given file does not have any download URLs.'\n  );\n}\n\nexport function missingPolyFill(polyFill: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.UNSUPPORTED_ENVIRONMENT,\n    `${polyFill} is missing. Make sure to install the required polyfills. See https://firebase.google.com/docs/web/environments-js-sdk#polyfills for more information.`\n  );\n}\n\n/**\n * @internal\n */\nexport function invalidArgument(message: string): StorageError {\n  return new StorageError(StorageErrorCode.INVALID_ARGUMENT, message);\n}\n\nexport function invalidArgumentCount(\n  argMin: number,\n  argMax: number,\n  fnName: string,\n  real: number\n): StorageError {\n  let countPart;\n  let plural;\n  if (argMin === argMax) {\n    countPart = argMin;\n    plural = argMin === 1 ? 'argument' : 'arguments';\n  } else {\n    countPart = 'between ' + argMin + ' and ' + argMax;\n    plural = 'arguments';\n  }\n  return new StorageError(\n    StorageErrorCode.INVALID_ARGUMENT_COUNT,\n    'Invalid argument count in `' +\n      fnName +\n      '`: Expected ' +\n      countPart +\n      ' ' +\n      plural +\n      ', received ' +\n      real +\n      '.'\n  );\n}\n\nexport function appDeleted(): StorageError {\n  return new StorageError(\n    StorageErrorCode.APP_DELETED,\n    'The Firebase app was deleted.'\n  );\n}\n\n/**\n * @param name - The name of the operation that was invalid.\n *\n * @internal\n */\nexport function invalidRootOperation(name: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_ROOT_OPERATION,\n    \"The operation '\" +\n      name +\n      \"' cannot be performed on a root reference, create a non-root \" +\n      \"reference using child, such as .child('file.png').\"\n  );\n}\n\n/**\n * @param format - The format that was not valid.\n * @param message - A message describing the format violation.\n */\nexport function invalidFormat(format: string, message: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_FORMAT,\n    \"String does not match format '\" + format + \"': \" + message\n  );\n}\n\n/**\n * @param message - A message describing the internal error.\n */\nexport function unsupportedEnvironment(message: string): StorageError {\n  throw new StorageError(StorageErrorCode.UNSUPPORTED_ENVIRONMENT, message);\n}\n\n/**\n * @param message - A message describing the internal error.\n */\nexport function internalError(message: string): StorageError {\n  throw new StorageError(\n    StorageErrorCode.INTERNAL_ERROR,\n    'Internal error: ' + message\n  );\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Functionality related to the parsing/composition of bucket/\n * object location.\n */\n\nimport { invalidDefaultBucket, invalidUrl } from './error';\nimport { DEFAULT_HOST } from './constants';\n\n/**\n * Firebase Storage location data.\n *\n * @internal\n */\nexport class Location {\n  private path_: string;\n\n  constructor(public readonly bucket: string, path: string) {\n    this.path_ = path;\n  }\n\n  get path(): string {\n    return this.path_;\n  }\n\n  get isRoot(): boolean {\n    return this.path.length === 0;\n  }\n\n  fullServerUrl(): string {\n    const encode = encodeURIComponent;\n    return '/b/' + encode(this.bucket) + '/o/' + encode(this.path);\n  }\n\n  bucketOnlyServerUrl(): string {\n    const encode = encodeURIComponent;\n    return '/b/' + encode(this.bucket) + '/o';\n  }\n\n  static makeFromBucketSpec(bucketString: string, host: string): Location {\n    let bucketLocation;\n    try {\n      bucketLocation = Location.makeFromUrl(bucketString, host);\n    } catch (e) {\n      // Not valid URL, use as-is. This lets you put bare bucket names in\n      // config.\n      return new Location(bucketString, '');\n    }\n    if (bucketLocation.path === '') {\n      return bucketLocation;\n    } else {\n      throw invalidDefaultBucket(bucketString);\n    }\n  }\n\n  static makeFromUrl(url: string, host: string): Location {\n    let location: Location | null = null;\n    const bucketDomain = '([A-Za-z0-9.\\\\-_]+)';\n\n    function gsModify(loc: Location): void {\n      if (loc.path.charAt(loc.path.length - 1) === '/') {\n        loc.path_ = loc.path_.slice(0, -1);\n      }\n    }\n    const gsPath = '(/(.*))?$';\n    const gsRegex = new RegExp('^gs://' + bucketDomain + gsPath, 'i');\n    const gsIndices = { bucket: 1, path: 3 };\n\n    function httpModify(loc: Location): void {\n      loc.path_ = decodeURIComponent(loc.path);\n    }\n    const version = 'v[A-Za-z0-9_]+';\n    const firebaseStorageHost = host.replace(/[.]/g, '\\\\.');\n    const firebaseStoragePath = '(/([^?#]*).*)?$';\n    const firebaseStorageRegExp = new RegExp(\n      `^https?://${firebaseStorageHost}/${version}/b/${bucketDomain}/o${firebaseStoragePath}`,\n      'i'\n    );\n    const firebaseStorageIndices = { bucket: 1, path: 3 };\n\n    const cloudStorageHost =\n      host === DEFAULT_HOST\n        ? '(?:storage.googleapis.com|storage.cloud.google.com)'\n        : host;\n    const cloudStoragePath = '([^?#]*)';\n    const cloudStorageRegExp = new RegExp(\n      `^https?://${cloudStorageHost}/${bucketDomain}/${cloudStoragePath}`,\n      'i'\n    );\n    const cloudStorageIndices = { bucket: 1, path: 2 };\n\n    const groups = [\n      { regex: gsRegex, indices: gsIndices, postModify: gsModify },\n      {\n        regex: firebaseStorageRegExp,\n        indices: firebaseStorageIndices,\n        postModify: httpModify\n      },\n      {\n        regex: cloudStorageRegExp,\n        indices: cloudStorageIndices,\n        postModify: httpModify\n      }\n    ];\n    for (let i = 0; i < groups.length; i++) {\n      const group = groups[i];\n      const captures = group.regex.exec(url);\n      if (captures) {\n        const bucketValue = captures[group.indices.bucket];\n        let pathValue = captures[group.indices.path];\n        if (!pathValue) {\n          pathValue = '';\n        }\n        location = new Location(bucketValue, pathValue);\n        group.postModify(location);\n        break;\n      }\n    }\n    if (location == null) {\n      throw invalidUrl(url);\n    }\n    return location;\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport { StorageError } from './error';\nimport { Request } from './request';\n\n/**\n * A request whose promise always fails.\n */\nexport class FailRequest<T> implements Request<T> {\n  promise_: Promise<T>;\n\n  constructor(error: StorageError) {\n    this.promise_ = Promise.reject<T>(error);\n  }\n\n  /** @inheritDoc */\n  getPromise(): Promise<T> {\n    return this.promise_;\n  }\n\n  /** @inheritDoc */\n  cancel(_appDelete = false): void {}\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Provides a method for running a function with exponential\n * backoff.\n */\ntype id = (p1: boolean) => void;\n\nexport { id };\n\n/**\n * Accepts a callback for an action to perform (`doRequest`),\n * and then a callback for when the backoff has completed (`backoffCompleteCb`).\n * The callback sent to start requires an argument to call (`onRequestComplete`).\n * When `start` calls `doRequest`, it passes a callback for when the request has\n * completed, `onRequestComplete`. Based on this, the backoff continues, with\n * another call to `doRequest` and the above loop continues until the timeout\n * is hit, or a successful response occurs.\n * @description\n * @param doRequest Callback to perform request\n * @param backoffCompleteCb Callback to call when backoff has been completed\n */\nexport function start(\n  doRequest: (\n    onRequestComplete: (success: boolean) => void,\n    canceled: boolean\n  ) => void,\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  backoffCompleteCb: (...args: any[]) => unknown,\n  timeout: number\n): id {\n  // TODO(andysoto): make this code cleaner (probably refactor into an actual\n  // type instead of a bunch of functions with state shared in the closure)\n  let waitSeconds = 1;\n  // Would type this as \"number\" but that doesn't work for Node so ¯\\_(ツ)_/¯\n  // TODO: find a way to exclude Node type definition for storage because storage only works in browser\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  let retryTimeoutId: any = null;\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  let globalTimeoutId: any = null;\n  let hitTimeout = false;\n  let cancelState = 0;\n\n  function canceled(): boolean {\n    return cancelState === 2;\n  }\n  let triggeredCallback = false;\n\n  function triggerCallback(...args: any[]): void {\n    if (!triggeredCallback) {\n      triggeredCallback = true;\n      backoffCompleteCb.apply(null, args);\n    }\n  }\n\n  function callWithDelay(millis: number): void {\n    retryTimeoutId = setTimeout(() => {\n      retryTimeoutId = null;\n      doRequest(responseHandler, canceled());\n    }, millis);\n  }\n\n  function clearGlobalTimeout(): void {\n    if (globalTimeoutId) {\n      clearTimeout(globalTimeoutId);\n    }\n  }\n\n  function responseHandler(success: boolean, ...args: any[]): void {\n    if (triggeredCallback) {\n      clearGlobalTimeout();\n      return;\n    }\n    if (success) {\n      clearGlobalTimeout();\n      triggerCallback.call(null, success, ...args);\n      return;\n    }\n    const mustStop = canceled() || hitTimeout;\n    if (mustStop) {\n      clearGlobalTimeout();\n      triggerCallback.call(null, success, ...args);\n      return;\n    }\n    if (waitSeconds < 64) {\n      /* TODO(andysoto): don't back off so quickly if we know we're offline. */\n      waitSeconds *= 2;\n    }\n    let waitMillis;\n    if (cancelState === 1) {\n      cancelState = 2;\n      waitMillis = 0;\n    } else {\n      waitMillis = (waitSeconds + Math.random()) * 1000;\n    }\n    callWithDelay(waitMillis);\n  }\n  let stopped = false;\n\n  function stop(wasTimeout: boolean): void {\n    if (stopped) {\n      return;\n    }\n    stopped = true;\n    clearGlobalTimeout();\n    if (triggeredCallback) {\n      return;\n    }\n    if (retryTimeoutId !== null) {\n      if (!wasTimeout) {\n        cancelState = 2;\n      }\n      clearTimeout(retryTimeoutId);\n      callWithDelay(0);\n    } else {\n      if (!wasTimeout) {\n        cancelState = 1;\n      }\n    }\n  }\n  callWithDelay(0);\n  globalTimeoutId = setTimeout(() => {\n    hitTimeout = true;\n    stop(true);\n  }, timeout);\n  return stop;\n}\n\n/**\n * Stops the retry loop from repeating.\n * If the function is currently \"in between\" retries, it is invoked immediately\n * with the second parameter as \"true\". Otherwise, it will be invoked once more\n * after the current invocation finishes iff the current invocation would have\n * triggered another retry.\n */\nexport function stop(id: id): void {\n  id(false);\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { invalidArgument } from './error';\n\nexport function isJustDef<T>(p: T | null | undefined): p is T | null {\n  return p !== void 0;\n}\n\n// eslint-disable-next-line @typescript-eslint/ban-types\nexport function isFunction(p: unknown): p is Function {\n  return typeof p === 'function';\n}\n\nexport function isNonArrayObject(p: unknown): boolean {\n  return typeof p === 'object' && !Array.isArray(p);\n}\n\nexport function isString(p: unknown): p is string {\n  return typeof p === 'string' || p instanceof String;\n}\n\nexport function isNativeBlob(p: unknown): p is Blob {\n  return isNativeBlobDefined() && p instanceof Blob;\n}\n\nexport function isNativeBlobDefined(): boolean {\n  return typeof Blob !== 'undefined';\n}\n\nexport function validateNumber(\n  argument: string,\n  minValue: number,\n  maxValue: number,\n  value: number\n): void {\n  if (value < minValue) {\n    throw invalidArgument(\n      `Invalid value for '${argument}'. Expected ${minValue} or greater.`\n    );\n  }\n  if (value > maxValue) {\n    throw invalidArgument(\n      `Invalid value for '${argument}'. Expected ${maxValue} or less.`\n    );\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Functions to create and manipulate URLs for the server API.\n */\nimport { UrlParams } from './requestinfo';\n\nexport function makeUrl(\n  urlPart: string,\n  host: string,\n  protocol: string\n): string {\n  let origin = host;\n  if (protocol == null) {\n    origin = `https://${host}`;\n  }\n  return `${protocol}://${origin}/v0${urlPart}`;\n}\n\nexport function makeQueryString(params: UrlParams): string {\n  const encode = encodeURIComponent;\n  let queryPart = '?';\n  for (const key in params) {\n    if (params.hasOwnProperty(key)) {\n      const nextPart = encode(key) + '=' + encode(params[key]);\n      queryPart = queryPart + nextPart + '&';\n    }\n  }\n\n  // Chop off the extra '&' or '?' on the end\n  queryPart = queryPart.slice(0, -1);\n  return queryPart;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/** Network headers */\nexport type Headers = Record<string, string>;\n\n/** Response type exposed by the networking APIs. */\nexport type ConnectionType =\n  | string\n  | ArrayBuffer\n  | Blob\n  | ReadableStream<Uint8Array>;\n\n/**\n * A lightweight wrapper around XMLHttpRequest with a\n * goog.net.XhrIo-like interface.\n *\n * You can create a new connection by invoking `newTextConnection()`,\n * `newBytesConnection()` or `newStreamConnection()`.\n */\nexport interface Connection<T extends ConnectionType> {\n  /**\n   * Sends a request to the provided URL.\n   *\n   * This method never rejects its promise. In case of encountering an error,\n   * it sets an error code internally which can be accessed by calling\n   * getErrorCode() by callers.\n   */\n  send(\n    url: string,\n    method: string,\n    isUsingEmulator: boolean,\n    body?: ArrayBufferView | Blob | string | null,\n    headers?: Headers\n  ): Promise<void>;\n\n  getErrorCode(): ErrorCode;\n\n  getStatus(): number;\n\n  getResponse(): T;\n\n  getErrorText(): string;\n\n  /**\n   * Abort the request.\n   */\n  abort(): void;\n\n  getResponseHeader(header: string): string | null;\n\n  addUploadProgressListener(listener: (p1: ProgressEvent) => void): void;\n\n  removeUploadProgressListener(listener: (p1: ProgressEvent) => void): void;\n}\n\n/**\n * Error codes for requests made by the XhrIo wrapper.\n */\nexport enum ErrorCode {\n  NO_ERROR = 0,\n  NETWORK_ERROR = 1,\n  ABORT = 2\n}\n","/**\n * @license\n * Copyright 2022 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * Checks the status code to see if the action should be retried.\n *\n * @param status Current HTTP status code returned by server.\n * @param additionalRetryCodes additional retry codes to check against\n */\nexport function isRetryStatusCode(\n  status: number,\n  additionalRetryCodes: number[]\n): boolean {\n  // The codes for which to retry came from this page:\n  // https://cloud.google.com/storage/docs/exponential-backoff\n  const isFiveHundredCode = status >= 500 && status < 600;\n  const extraRetryCodes = [\n    // Request Timeout: web server didn't receive full request in time.\n    408,\n    // Too Many Requests: you're getting rate-limited, basically.\n    429\n  ];\n  const isExtraRetryCode = extraRetryCodes.indexOf(status) !== -1;\n  const isAdditionalRetryCode = additionalRetryCodes.indexOf(status) !== -1;\n  return isFiveHundredCode || isExtraRetryCode || isAdditionalRetryCode;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Defines methods used to actually send HTTP requests from\n * abstract representations.\n */\n\nimport { id as backoffId, start, stop } from './backoff';\nimport { appDeleted, canceled, retryLimitExceeded, unknown } from './error';\nimport { ErrorHandler, RequestHandler, RequestInfo } from './requestinfo';\nimport { isJustDef } from './type';\nimport { makeQueryString } from './url';\nimport { Connection, ErrorCode, Headers, ConnectionType } from './connection';\nimport { isRetryStatusCode } from './utils';\n\nexport interface Request<T> {\n  getPromise(): Promise<T>;\n\n  /**\n   * Cancels the request. IMPORTANT: the promise may still be resolved with an\n   * appropriate value (if the request is finished before you call this method,\n   * but the promise has not yet been resolved), so don't just assume it will be\n   * rejected if you call this function.\n   * @param appDelete - True if the cancelation came from the app being deleted.\n   */\n  cancel(appDelete?: boolean): void;\n}\n\n/**\n * Handles network logic for all Storage Requests, including error reporting and\n * retries with backoff.\n *\n * @param I - the type of the backend's network response.\n * @param - O the output type used by the rest of the SDK. The conversion\n * happens in the specified `callback_`.\n */\nclass NetworkRequest<I extends ConnectionType, O> implements Request<O> {\n  private pendingConnection_: Connection<I> | null = null;\n  private backoffId_: backoffId | null = null;\n  private resolve_!: (value?: O | PromiseLike<O>) => void;\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  private reject_!: (reason?: any) => void;\n  private canceled_: boolean = false;\n  private appDelete_: boolean = false;\n  private promise_: Promise<O>;\n\n  constructor(\n    private url_: string,\n    private method_: string,\n    private headers_: Headers,\n    private body_: string | Blob | Uint8Array | null,\n    private successCodes_: number[],\n    private additionalRetryCodes_: number[],\n    private callback_: RequestHandler<I, O>,\n    private errorCallback_: ErrorHandler | null,\n    private timeout_: number,\n    private progressCallback_: ((p1: number, p2: number) => void) | null,\n    private connectionFactory_: () => Connection<I>,\n    private retry = true,\n    private isUsingEmulator = false\n  ) {\n    this.promise_ = new Promise((resolve, reject) => {\n      this.resolve_ = resolve as (value?: O | PromiseLike<O>) => void;\n      this.reject_ = reject;\n      this.start_();\n    });\n  }\n\n  /**\n   * Actually starts the retry loop.\n   */\n  private start_(): void {\n    const doTheRequest: (\n      backoffCallback: (success: boolean, ...p2: unknown[]) => void,\n      canceled: boolean\n    ) => void = (backoffCallback, canceled) => {\n      if (canceled) {\n        backoffCallback(false, new RequestEndStatus(false, null, true));\n        return;\n      }\n      const connection = this.connectionFactory_();\n      this.pendingConnection_ = connection;\n\n      const progressListener: (\n        progressEvent: ProgressEvent\n      ) => void = progressEvent => {\n        const loaded = progressEvent.loaded;\n        const total = progressEvent.lengthComputable ? progressEvent.total : -1;\n        if (this.progressCallback_ !== null) {\n          this.progressCallback_(loaded, total);\n        }\n      };\n      if (this.progressCallback_ !== null) {\n        connection.addUploadProgressListener(progressListener);\n      }\n\n      // connection.send() never rejects, so we don't need to have a error handler or use catch on the returned promise.\n      // eslint-disable-next-line @typescript-eslint/no-floating-promises\n      connection\n        .send(\n          this.url_,\n          this.method_,\n          this.isUsingEmulator,\n          this.body_,\n          this.headers_\n        )\n        .then(() => {\n          if (this.progressCallback_ !== null) {\n            connection.removeUploadProgressListener(progressListener);\n          }\n          this.pendingConnection_ = null;\n          const hitServer = connection.getErrorCode() === ErrorCode.NO_ERROR;\n          const status = connection.getStatus();\n          if (\n            !hitServer ||\n            (isRetryStatusCode(status, this.additionalRetryCodes_) &&\n              this.retry)\n          ) {\n            const wasCanceled = connection.getErrorCode() === ErrorCode.ABORT;\n            backoffCallback(\n              false,\n              new RequestEndStatus(false, null, wasCanceled)\n            );\n            return;\n          }\n          const successCode = this.successCodes_.indexOf(status) !== -1;\n          backoffCallback(true, new RequestEndStatus(successCode, connection));\n        });\n    };\n\n    /**\n     * @param requestWentThrough - True if the request eventually went\n     *     through, false if it hit the retry limit or was canceled.\n     */\n    const backoffDone: (\n      requestWentThrough: boolean,\n      status: RequestEndStatus<I>\n    ) => void = (requestWentThrough, status) => {\n      const resolve = this.resolve_;\n      const reject = this.reject_;\n      const connection = status.connection as Connection<I>;\n      if (status.wasSuccessCode) {\n        try {\n          const result = this.callback_(connection, connection.getResponse());\n          if (isJustDef(result)) {\n            resolve(result);\n          } else {\n            resolve();\n          }\n        } catch (e) {\n          reject(e);\n        }\n      } else {\n        if (connection !== null) {\n          const err = unknown();\n          err.serverResponse = connection.getErrorText();\n          if (this.errorCallback_) {\n            reject(this.errorCallback_(connection, err));\n          } else {\n            reject(err);\n          }\n        } else {\n          if (status.canceled) {\n            const err = this.appDelete_ ? appDeleted() : canceled();\n            reject(err);\n          } else {\n            const err = retryLimitExceeded();\n            reject(err);\n          }\n        }\n      }\n    };\n    if (this.canceled_) {\n      backoffDone(false, new RequestEndStatus(false, null, true));\n    } else {\n      this.backoffId_ = start(doTheRequest, backoffDone, this.timeout_);\n    }\n  }\n\n  /** @inheritDoc */\n  getPromise(): Promise<O> {\n    return this.promise_;\n  }\n\n  /** @inheritDoc */\n  cancel(appDelete?: boolean): void {\n    this.canceled_ = true;\n    this.appDelete_ = appDelete || false;\n    if (this.backoffId_ !== null) {\n      stop(this.backoffId_);\n    }\n    if (this.pendingConnection_ !== null) {\n      this.pendingConnection_.abort();\n    }\n  }\n}\n\n/**\n * A collection of information about the result of a network request.\n * @param opt_canceled - Defaults to false.\n */\nexport class RequestEndStatus<I extends ConnectionType> {\n  /**\n   * True if the request was canceled.\n   */\n  canceled: boolean;\n\n  constructor(\n    public wasSuccessCode: boolean,\n    public connection: Connection<I> | null,\n    canceled?: boolean\n  ) {\n    this.canceled = !!canceled;\n  }\n}\n\nexport function addAuthHeader_(\n  headers: Headers,\n  authToken: string | null\n): void {\n  if (authToken !== null && authToken.length > 0) {\n    headers['Authorization'] = 'Firebase ' + authToken;\n  }\n}\n\nexport function addVersionHeader_(\n  headers: Headers,\n  firebaseVersion?: string\n): void {\n  headers['X-Firebase-Storage-Version'] =\n    'webjs/' + (firebaseVersion ?? 'AppManager');\n}\n\nexport function addGmpidHeader_(headers: Headers, appId: string | null): void {\n  if (appId) {\n    headers['X-Firebase-GMPID'] = appId;\n  }\n}\n\nexport function addAppCheckHeader_(\n  headers: Headers,\n  appCheckToken: string | null\n): void {\n  if (appCheckToken !== null) {\n    headers['X-Firebase-AppCheck'] = appCheckToken;\n  }\n}\n\nexport function makeRequest<I extends ConnectionType, O>(\n  requestInfo: RequestInfo<I, O>,\n  appId: string | null,\n  authToken: string | null,\n  appCheckToken: string | null,\n  requestFactory: () => Connection<I>,\n  firebaseVersion?: string,\n  retry = true,\n  isUsingEmulator = false\n): Request<O> {\n  const queryPart = makeQueryString(requestInfo.urlParams);\n  const url = requestInfo.url + queryPart;\n  const headers = Object.assign({}, requestInfo.headers);\n  addGmpidHeader_(headers, appId);\n  addAuthHeader_(headers, authToken);\n  addVersionHeader_(headers, firebaseVersion);\n  addAppCheckHeader_(headers, appCheckToken);\n  return new NetworkRequest<I, O>(\n    url,\n    requestInfo.method,\n    headers,\n    requestInfo.body,\n    requestInfo.successCodes,\n    requestInfo.additionalRetryCodes,\n    requestInfo.handler,\n    requestInfo.errorHandler,\n    requestInfo.timeout,\n    requestInfo.progressCallback,\n    requestFactory,\n    retry,\n    isUsingEmulator\n  );\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * @fileoverview Some methods copied from goog.fs.\n * We don't include goog.fs because it pulls in a bunch of Deferred code that\n * bloats the size of the released binary.\n */\nimport { isNativeBlobDefined } from './type';\nimport { StorageErrorCode, StorageError } from './error';\n\nfunction getBlobBuilder(): typeof IBlobBuilder | undefined {\n  if (typeof BlobBuilder !== 'undefined') {\n    return BlobBuilder;\n  } else if (typeof WebKitBlobBuilder !== 'undefined') {\n    return WebKitBlobBuilder;\n  } else {\n    return undefined;\n  }\n}\n\n/**\n * Concatenates one or more values together and converts them to a Blob.\n *\n * @param args The values that will make up the resulting blob.\n * @return The blob.\n */\nexport function getBlob(...args: Array<string | Blob | ArrayBuffer>): Blob {\n  const BlobBuilder = getBlobBuilder();\n  if (BlobBuilder !== undefined) {\n    const bb = new BlobBuilder();\n    for (let i = 0; i < args.length; i++) {\n      bb.append(args[i]);\n    }\n    return bb.getBlob();\n  } else {\n    if (isNativeBlobDefined()) {\n      return new Blob(args);\n    } else {\n      throw new StorageError(\n        StorageErrorCode.UNSUPPORTED_ENVIRONMENT,\n        \"This browser doesn't seem to support creating Blobs\"\n      );\n    }\n  }\n}\n\n/**\n * Slices the blob. The returned blob contains data from the start byte\n * (inclusive) till the end byte (exclusive). Negative indices cannot be used.\n *\n * @param blob The blob to be sliced.\n * @param start Index of the starting byte.\n * @param end Index of the ending byte.\n * @return The blob slice or null if not supported.\n */\nexport function sliceBlob(blob: Blob, start: number, end: number): Blob | null {\n  if (blob.webkitSlice) {\n    return blob.webkitSlice(start, end);\n  } else if (blob.mozSlice) {\n    return blob.mozSlice(start, end);\n  } else if (blob.slice) {\n    return blob.slice(start, end);\n  }\n  return null;\n}\n","/**\n * @license\n * Copyright 2021 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { missingPolyFill } from '../../implementation/error';\n\n/** Converts a Base64 encoded string to a binary string. */\nexport function decodeBase64(encoded: string): string {\n  if (typeof atob === 'undefined') {\n    throw missingPolyFill('base-64');\n  }\n  return atob(encoded);\n}\n\nexport function decodeUint8Array(data: Uint8Array): string {\n  return new TextDecoder().decode(data);\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { unknown, invalidFormat } from './error';\nimport { decodeBase64 } from '../platform/base64';\n\n/**\n * An enumeration of the possible string formats for upload.\n * @public\n */\nexport type StringFormat = (typeof StringFormat)[keyof typeof StringFormat];\n/**\n * An enumeration of the possible string formats for upload.\n * @public\n */\nexport const StringFormat = {\n  /**\n   * Indicates the string should be interpreted \"raw\", that is, as normal text.\n   * The string will be interpreted as UTF-16, then uploaded as a UTF-8 byte\n   * sequence.\n   * Example: The string 'Hello! \\\\ud83d\\\\ude0a' becomes the byte sequence\n   * 48 65 6c 6c 6f 21 20 f0 9f 98 8a\n   */\n  RAW: 'raw',\n  /**\n   * Indicates the string should be interpreted as base64-encoded data.\n   * Padding characters (trailing '='s) are optional.\n   * Example: The string 'rWmO++E6t7/rlw==' becomes the byte sequence\n   * ad 69 8e fb e1 3a b7 bf eb 97\n   */\n  BASE64: 'base64',\n  /**\n   * Indicates the string should be interpreted as base64url-encoded data.\n   * Padding characters (trailing '='s) are optional.\n   * Example: The string 'rWmO--E6t7_rlw==' becomes the byte sequence\n   * ad 69 8e fb e1 3a b7 bf eb 97\n   */\n  BASE64URL: 'base64url',\n  /**\n   * Indicates the string is a data URL, such as one obtained from\n   * canvas.toDataURL().\n   * Example: the string 'data:application/octet-stream;base64,aaaa'\n   * becomes the byte sequence\n   * 69 a6 9a\n   * (the content-type \"application/octet-stream\" is also applied, but can\n   * be overridden in the metadata object).\n   */\n  DATA_URL: 'data_url'\n} as const;\n\nexport class StringData {\n  contentType: string | null;\n\n  constructor(public data: Uint8Array, contentType?: string | null) {\n    this.contentType = contentType || null;\n  }\n}\n\n/**\n * @internal\n */\nexport function dataFromString(\n  format: StringFormat,\n  stringData: string\n): StringData {\n  switch (format) {\n    case StringFormat.RAW:\n      return new StringData(utf8Bytes_(stringData));\n    case StringFormat.BASE64:\n    case StringFormat.BASE64URL:\n      return new StringData(base64Bytes_(format, stringData));\n    case StringFormat.DATA_URL:\n      return new StringData(\n        dataURLBytes_(stringData),\n        dataURLContentType_(stringData)\n      );\n    default:\n    // do nothing\n  }\n\n  // assert(false);\n  throw unknown();\n}\n\nexport function utf8Bytes_(value: string): Uint8Array {\n  const b: number[] = [];\n  for (let i = 0; i < value.length; i++) {\n    let c = value.charCodeAt(i);\n    if (c <= 127) {\n      b.push(c);\n    } else {\n      if (c <= 2047) {\n        b.push(192 | (c >> 6), 128 | (c & 63));\n      } else {\n        if ((c & 64512) === 55296) {\n          // The start of a surrogate pair.\n          const valid =\n            i < value.length - 1 && (value.charCodeAt(i + 1) & 64512) === 56320;\n          if (!valid) {\n            // The second surrogate wasn't there.\n            b.push(239, 191, 189);\n          } else {\n            const hi = c;\n            const lo = value.charCodeAt(++i);\n            c = 65536 | ((hi & 1023) << 10) | (lo & 1023);\n            b.push(\n              240 | (c >> 18),\n              128 | ((c >> 12) & 63),\n              128 | ((c >> 6) & 63),\n              128 | (c & 63)\n            );\n          }\n        } else {\n          if ((c & 64512) === 56320) {\n            // Invalid low surrogate.\n            b.push(239, 191, 189);\n          } else {\n            b.push(224 | (c >> 12), 128 | ((c >> 6) & 63), 128 | (c & 63));\n          }\n        }\n      }\n    }\n  }\n  return new Uint8Array(b);\n}\n\nexport function percentEncodedBytes_(value: string): Uint8Array {\n  let decoded;\n  try {\n    decoded = decodeURIComponent(value);\n  } catch (e) {\n    throw invalidFormat(StringFormat.DATA_URL, 'Malformed data URL.');\n  }\n  return utf8Bytes_(decoded);\n}\n\nexport function base64Bytes_(format: StringFormat, value: string): Uint8Array {\n  switch (format) {\n    case StringFormat.BASE64: {\n      const hasMinus = value.indexOf('-') !== -1;\n      const hasUnder = value.indexOf('_') !== -1;\n      if (hasMinus || hasUnder) {\n        const invalidChar = hasMinus ? '-' : '_';\n        throw invalidFormat(\n          format,\n          \"Invalid character '\" +\n            invalidChar +\n            \"' found: is it base64url encoded?\"\n        );\n      }\n      break;\n    }\n    case StringFormat.BASE64URL: {\n      const hasPlus = value.indexOf('+') !== -1;\n      const hasSlash = value.indexOf('/') !== -1;\n      if (hasPlus || hasSlash) {\n        const invalidChar = hasPlus ? '+' : '/';\n        throw invalidFormat(\n          format,\n          \"Invalid character '\" + invalidChar + \"' found: is it base64 encoded?\"\n        );\n      }\n      value = value.replace(/-/g, '+').replace(/_/g, '/');\n      break;\n    }\n    default:\n    // do nothing\n  }\n  let bytes;\n  try {\n    bytes = decodeBase64(value);\n  } catch (e) {\n    if ((e as Error).message.includes('polyfill')) {\n      throw e;\n    }\n    throw invalidFormat(format, 'Invalid character found');\n  }\n  const array = new Uint8Array(bytes.length);\n  for (let i = 0; i < bytes.length; i++) {\n    array[i] = bytes.charCodeAt(i);\n  }\n  return array;\n}\n\nclass DataURLParts {\n  base64: boolean = false;\n  contentType: string | null = null;\n  rest: string;\n\n  constructor(dataURL: string) {\n    const matches = dataURL.match(/^data:([^,]+)?,/);\n    if (matches === null) {\n      throw invalidFormat(\n        StringFormat.DATA_URL,\n        \"Must be formatted 'data:[<mediatype>][;base64],<data>\"\n      );\n    }\n    const middle = matches[1] || null;\n    if (middle != null) {\n      this.base64 = endsWith(middle, ';base64');\n      this.contentType = this.base64\n        ? middle.substring(0, middle.length - ';base64'.length)\n        : middle;\n    }\n    this.rest = dataURL.substring(dataURL.indexOf(',') + 1);\n  }\n}\n\nexport function dataURLBytes_(dataUrl: string): Uint8Array {\n  const parts = new DataURLParts(dataUrl);\n  if (parts.base64) {\n    return base64Bytes_(StringFormat.BASE64, parts.rest);\n  } else {\n    return percentEncodedBytes_(parts.rest);\n  }\n}\n\nexport function dataURLContentType_(dataUrl: string): string | null {\n  const parts = new DataURLParts(dataUrl);\n  return parts.contentType;\n}\n\nfunction endsWith(s: string, end: string): boolean {\n  const longEnough = s.length >= end.length;\n  if (!longEnough) {\n    return false;\n  }\n\n  return s.substring(s.length - end.length) === end;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @file Provides a Blob-like wrapper for various binary types (including the\n * native Blob type). This makes it possible to upload types like ArrayBuffers,\n * making uploads possible in environments without the native Blob type.\n */\nimport { sliceBlob, getBlob } from './fs';\nimport { StringFormat, dataFromString } from './string';\nimport { isNativeBlob, isNativeBlobDefined, isString } from './type';\n\n/**\n * @param opt_elideCopy - If true, doesn't copy mutable input data\n *     (e.g. Uint8Arrays). Pass true only if you know the objects will not be\n *     modified after this blob's construction.\n *\n * @internal\n */\nexport class FbsBlob {\n  private data_!: Blob | Uint8Array;\n  private size_: number;\n  private type_: string;\n\n  constructor(data: Blob | Uint8Array | ArrayBuffer, elideCopy?: boolean) {\n    let size: number = 0;\n    let blobType: string = '';\n    if (isNativeBlob(data)) {\n      this.data_ = data as Blob;\n      size = (data as Blob).size;\n      blobType = (data as Blob).type;\n    } else if (data instanceof ArrayBuffer) {\n      if (elideCopy) {\n        this.data_ = new Uint8Array(data);\n      } else {\n        this.data_ = new Uint8Array(data.byteLength);\n        this.data_.set(new Uint8Array(data));\n      }\n      size = this.data_.length;\n    } else if (data instanceof Uint8Array) {\n      if (elideCopy) {\n        this.data_ = data as Uint8Array;\n      } else {\n        this.data_ = new Uint8Array(data.length);\n        this.data_.set(data as Uint8Array);\n      }\n      size = data.length;\n    }\n    this.size_ = size;\n    this.type_ = blobType;\n  }\n\n  size(): number {\n    return this.size_;\n  }\n\n  type(): string {\n    return this.type_;\n  }\n\n  slice(startByte: number, endByte: number): FbsBlob | null {\n    if (isNativeBlob(this.data_)) {\n      const realBlob = this.data_ as Blob;\n      const sliced = sliceBlob(realBlob, startByte, endByte);\n      if (sliced === null) {\n        return null;\n      }\n      return new FbsBlob(sliced);\n    } else {\n      const slice = new Uint8Array(\n        (this.data_ as Uint8Array).buffer,\n        startByte,\n        endByte - startByte\n      );\n      return new FbsBlob(slice, true);\n    }\n  }\n\n  static getBlob(...args: Array<string | FbsBlob>): FbsBlob | null {\n    if (isNativeBlobDefined()) {\n      const blobby: Array<Blob | Uint8Array | string> = args.map(\n        (val: string | FbsBlob): Blob | Uint8Array | string => {\n          if (val instanceof FbsBlob) {\n            return val.data_;\n          } else {\n            return val;\n          }\n        }\n      );\n      return new FbsBlob(getBlob.apply(null, blobby));\n    } else {\n      const uint8Arrays: Uint8Array[] = args.map(\n        (val: string | FbsBlob): Uint8Array => {\n          if (isString(val)) {\n            return dataFromString(StringFormat.RAW, val as string).data;\n          } else {\n            // Blobs don't exist, so this has to be a Uint8Array.\n            return (val as FbsBlob).data_ as Uint8Array;\n          }\n        }\n      );\n      let finalLength = 0;\n      uint8Arrays.forEach((array: Uint8Array): void => {\n        finalLength += array.byteLength;\n      });\n      const merged = new Uint8Array(finalLength);\n      let index = 0;\n      uint8Arrays.forEach((array: Uint8Array) => {\n        for (let i = 0; i < array.length; i++) {\n          merged[index++] = array[i];\n        }\n      });\n      return new FbsBlob(merged, true);\n    }\n  }\n\n  uploadData(): Blob | Uint8Array {\n    return this.data_;\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport { isNonArrayObject } from './type';\n\n/**\n * Returns the Object resulting from parsing the given JSON, or null if the\n * given string does not represent a JSON object.\n */\nexport function jsonObjectOrNull(\n  s: string\n): { [name: string]: unknown } | null {\n  let obj;\n  try {\n    obj = JSON.parse(s);\n  } catch (e) {\n    return null;\n  }\n  if (isNonArrayObject(obj)) {\n    return obj;\n  } else {\n    return null;\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Contains helper methods for manipulating paths.\n */\n\n/**\n * @return Null if the path is already at the root.\n */\nexport function parent(path: string): string | null {\n  if (path.length === 0) {\n    return null;\n  }\n  const index = path.lastIndexOf('/');\n  if (index === -1) {\n    return '';\n  }\n  const newPath = path.slice(0, index);\n  return newPath;\n}\n\nexport function child(path: string, childPath: string): string {\n  const canonicalChildPath = childPath\n    .split('/')\n    .filter(component => component.length > 0)\n    .join('/');\n  if (path.length === 0) {\n    return canonicalChildPath;\n  } else {\n    return path + '/' + canonicalChildPath;\n  }\n}\n\n/**\n * Returns the last component of a path.\n * '/foo/bar' -> 'bar'\n * '/foo/bar/baz/' -> 'baz/'\n * '/a' -> 'a'\n */\nexport function lastComponent(path: string): string {\n  const index = path.lastIndexOf('/', path.length - 2);\n  if (index === -1) {\n    return path;\n  } else {\n    return path.slice(index + 1);\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Documentation for the metadata format\n */\nimport { Metadata } from '../metadata';\n\nimport { jsonObjectOrNull } from './json';\nimport { Location } from './location';\nimport { lastComponent } from './path';\nimport { isString } from './type';\nimport { makeUrl, makeQueryString } from './url';\nimport { Reference } from '../reference';\nimport { FirebaseStorageImpl } from '../service';\n\nexport function noXform_<T>(metadata: Metadata, value: T): T {\n  return value;\n}\n\nclass Mapping<T> {\n  local: string;\n  writable: boolean;\n  xform: (p1: Metadata, p2?: T) => T | undefined;\n\n  constructor(\n    public server: string,\n    local?: string | null,\n    writable?: boolean,\n    xform?: ((p1: Metadata, p2?: T) => T | undefined) | null\n  ) {\n    this.local = local || server;\n    this.writable = !!writable;\n    this.xform = xform || noXform_;\n  }\n}\ntype Mappings = Array<Mapping<string> | Mapping<number>>;\n\nexport { Mappings };\n\nlet mappings_: Mappings | null = null;\n\nexport function xformPath(fullPath: string | undefined): string | undefined {\n  if (!isString(fullPath) || fullPath.length < 2) {\n    return fullPath;\n  } else {\n    return lastComponent(fullPath);\n  }\n}\n\nexport function getMappings(): Mappings {\n  if (mappings_) {\n    return mappings_;\n  }\n  const mappings: Mappings = [];\n  mappings.push(new Mapping<string>('bucket'));\n  mappings.push(new Mapping<string>('generation'));\n  mappings.push(new Mapping<string>('metageneration'));\n  mappings.push(new Mapping<string>('name', 'fullPath', true));\n\n  function mappingsXformPath(\n    _metadata: Metadata,\n    fullPath: string | undefined\n  ): string | undefined {\n    return xformPath(fullPath);\n  }\n  const nameMapping = new Mapping<string>('name');\n  nameMapping.xform = mappingsXformPath;\n  mappings.push(nameMapping);\n\n  /**\n   * Coerces the second param to a number, if it is defined.\n   */\n  function xformSize(\n    _metadata: Metadata,\n    size?: number | string\n  ): number | undefined {\n    if (size !== undefined) {\n      return Number(size);\n    } else {\n      return size;\n    }\n  }\n  const sizeMapping = new Mapping<number>('size');\n  sizeMapping.xform = xformSize;\n  mappings.push(sizeMapping);\n  mappings.push(new Mapping<number>('timeCreated'));\n  mappings.push(new Mapping<string>('updated'));\n  mappings.push(new Mapping<string>('md5Hash', null, true));\n  mappings.push(new Mapping<string>('cacheControl', null, true));\n  mappings.push(new Mapping<string>('contentDisposition', null, true));\n  mappings.push(new Mapping<string>('contentEncoding', null, true));\n  mappings.push(new Mapping<string>('contentLanguage', null, true));\n  mappings.push(new Mapping<string>('contentType', null, true));\n  mappings.push(new Mapping<string>('metadata', 'customMetadata', true));\n  mappings_ = mappings;\n  return mappings_;\n}\n\nexport function addRef(metadata: Metadata, service: FirebaseStorageImpl): void {\n  function generateRef(): Reference {\n    const bucket: string = metadata['bucket'] as string;\n    const path: string = metadata['fullPath'] as string;\n    const loc = new Location(bucket, path);\n    return service._makeStorageReference(loc);\n  }\n  Object.defineProperty(metadata, 'ref', { get: generateRef });\n}\n\nexport function fromResource(\n  service: FirebaseStorageImpl,\n  resource: { [name: string]: unknown },\n  mappings: Mappings\n): Metadata {\n  const metadata: Metadata = {} as Metadata;\n  metadata['type'] = 'file';\n  const len = mappings.length;\n  for (let i = 0; i < len; i++) {\n    const mapping = mappings[i];\n    metadata[mapping.local] = (mapping as Mapping<unknown>).xform(\n      metadata,\n      resource[mapping.server]\n    );\n  }\n  addRef(metadata, service);\n  return metadata;\n}\n\nexport function fromResourceString(\n  service: FirebaseStorageImpl,\n  resourceString: string,\n  mappings: Mappings\n): Metadata | null {\n  const obj = jsonObjectOrNull(resourceString);\n  if (obj === null) {\n    return null;\n  }\n  const resource = obj as Metadata;\n  return fromResource(service, resource, mappings);\n}\n\nexport function downloadUrlFromResourceString(\n  metadata: Metadata,\n  resourceString: string,\n  host: string,\n  protocol: string\n): string | null {\n  const obj = jsonObjectOrNull(resourceString);\n  if (obj === null) {\n    return null;\n  }\n  if (!isString(obj['downloadTokens'])) {\n    // This can happen if objects are uploaded through GCS and retrieved\n    // through list, so we don't want to throw an Error.\n    return null;\n  }\n  const tokens: string = obj['downloadTokens'] as string;\n  if (tokens.length === 0) {\n    return null;\n  }\n  const encode = encodeURIComponent;\n  const tokensList = tokens.split(',');\n  const urls = tokensList.map((token: string): string => {\n    const bucket: string = metadata['bucket'] as string;\n    const path: string = metadata['fullPath'] as string;\n    const urlPart = '/b/' + encode(bucket) + '/o/' + encode(path);\n    const base = makeUrl(urlPart, host, protocol);\n    const queryString = makeQueryString({\n      alt: 'media',\n      token\n    });\n    return base + queryString;\n  });\n  return urls[0];\n}\n\nexport function toResourceString(\n  metadata: Partial<Metadata>,\n  mappings: Mappings\n): string {\n  const resource: {\n    [prop: string]: unknown;\n  } = {};\n  const len = mappings.length;\n  for (let i = 0; i < len; i++) {\n    const mapping = mappings[i];\n    if (mapping.writable) {\n      resource[mapping.server] = metadata[mapping.local];\n    }\n  }\n  return JSON.stringify(resource);\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Documentation for the listOptions and listResult format\n */\nimport { Location } from './location';\nimport { jsonObjectOrNull } from './json';\nimport { ListResult } from '../list';\nimport { FirebaseStorageImpl } from '../service';\n\n/**\n * Represents the simplified object metadata returned by List API.\n * Other fields are filtered because list in Firebase Rules does not grant\n * the permission to read the metadata.\n */\ninterface ListMetadataResponse {\n  name: string;\n  bucket: string;\n}\n\n/**\n * Represents the JSON response of List API.\n */\ninterface ListResultResponse {\n  prefixes: string[];\n  items: ListMetadataResponse[];\n  nextPageToken?: string;\n}\n\nconst PREFIXES_KEY = 'prefixes';\nconst ITEMS_KEY = 'items';\n\nfunction fromBackendResponse(\n  service: FirebaseStorageImpl,\n  bucket: string,\n  resource: ListResultResponse\n): ListResult {\n  const listResult: ListResult = {\n    prefixes: [],\n    items: [],\n    nextPageToken: resource['nextPageToken']\n  };\n  if (resource[PREFIXES_KEY]) {\n    for (const path of resource[PREFIXES_KEY]) {\n      const pathWithoutTrailingSlash = path.replace(/\\/$/, '');\n      const reference = service._makeStorageReference(\n        new Location(bucket, pathWithoutTrailingSlash)\n      );\n      listResult.prefixes.push(reference);\n    }\n  }\n\n  if (resource[ITEMS_KEY]) {\n    for (const item of resource[ITEMS_KEY]) {\n      const reference = service._makeStorageReference(\n        new Location(bucket, item['name'])\n      );\n      listResult.items.push(reference);\n    }\n  }\n  return listResult;\n}\n\nexport function fromResponseString(\n  service: FirebaseStorageImpl,\n  bucket: string,\n  resourceString: string\n): ListResult | null {\n  const obj = jsonObjectOrNull(resourceString);\n  if (obj === null) {\n    return null;\n  }\n  const resource = obj as unknown as ListResultResponse;\n  return fromBackendResponse(service, bucket, resource);\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport { StorageError } from './error';\nimport { Headers, Connection, ConnectionType } from './connection';\n\n/**\n * Type for url params stored in RequestInfo.\n */\nexport interface UrlParams {\n  [name: string]: string | number;\n}\n\n/**\n * A function that converts a server response to the API type expected by the\n * SDK.\n *\n * @param I - the type of the backend's network response\n * @param O - the output response type used by the rest of the SDK.\n */\nexport type RequestHandler<I extends ConnectionType, O> = (\n  connection: Connection<I>,\n  response: I\n) => O;\n\n/** A function to handle an error. */\nexport type ErrorHandler = (\n  connection: Connection<ConnectionType>,\n  response: StorageError\n) => StorageError;\n\n/**\n * Contains a fully specified request.\n *\n * @param I - the type of the backend's network response.\n * @param O - the output response type used by the rest of the SDK.\n */\nexport class RequestInfo<I extends ConnectionType, O> {\n  urlParams: UrlParams = {};\n  headers: Headers = {};\n  body: Blob | string | Uint8Array | null = null;\n  errorHandler: ErrorHandler | null = null;\n\n  /**\n   * Called with the current number of bytes uploaded and total size (-1 if not\n   * computable) of the request body (i.e. used to report upload progress).\n   */\n  progressCallback: ((p1: number, p2: number) => void) | null = null;\n  successCodes: number[] = [200];\n  additionalRetryCodes: number[] = [];\n\n  constructor(\n    public url: string,\n    public method: string,\n    /**\n     * Returns the value with which to resolve the request's promise. Only called\n     * if the request is successful. Throw from this function to reject the\n     * returned Request's promise with the thrown error.\n     * Note: The XhrIo passed to this function may be reused after this callback\n     * returns. Do not keep a reference to it in any way.\n     */\n    public handler: RequestHandler<I, O>,\n    public timeout: number\n  ) {}\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Defines methods for interacting with the network.\n */\n\nimport { Metadata } from '../metadata';\nimport { ListResult } from '../list';\nimport { FbsBlob } from './blob';\nimport {\n  StorageError,\n  cannotSliceBlob,\n  unauthenticated,\n  quotaExceeded,\n  unauthorized,\n  objectNotFound,\n  serverFileWrongSize,\n  unknown,\n  unauthorizedApp\n} from './error';\nimport { Location } from './location';\nimport {\n  Mappings,\n  fromResourceString,\n  downloadUrlFromResourceString,\n  toResourceString\n} from './metadata';\nimport { fromResponseString } from './list';\nimport { RequestInfo, UrlParams } from './requestinfo';\nimport { isString } from './type';\nimport { makeUrl } from './url';\nimport { Connection, ConnectionType } from './connection';\nimport { FirebaseStorageImpl } from '../service';\n\n/**\n * Throws the UNKNOWN StorageError if cndn is false.\n */\nexport function handlerCheck(cndn: boolean): void {\n  if (!cndn) {\n    throw unknown();\n  }\n}\n\nexport function metadataHandler(\n  service: FirebaseStorageImpl,\n  mappings: Mappings\n): (p1: Connection<string>, p2: string) => Metadata {\n  function handler(xhr: Connection<string>, text: string): Metadata {\n    const metadata = fromResourceString(service, text, mappings);\n    handlerCheck(metadata !== null);\n    return metadata as Metadata;\n  }\n  return handler;\n}\n\nexport function listHandler(\n  service: FirebaseStorageImpl,\n  bucket: string\n): (p1: Connection<string>, p2: string) => ListResult {\n  function handler(xhr: Connection<string>, text: string): ListResult {\n    const listResult = fromResponseString(service, bucket, text);\n    handlerCheck(listResult !== null);\n    return listResult as ListResult;\n  }\n  return handler;\n}\n\nexport function downloadUrlHandler(\n  service: FirebaseStorageImpl,\n  mappings: Mappings\n): (p1: Connection<string>, p2: string) => string | null {\n  function handler(xhr: Connection<string>, text: string): string | null {\n    const metadata = fromResourceString(service, text, mappings);\n    handlerCheck(metadata !== null);\n    return downloadUrlFromResourceString(\n      metadata as Metadata,\n      text,\n      service.host,\n      service._protocol\n    );\n  }\n  return handler;\n}\n\nexport function sharedErrorHandler(\n  location: Location\n): (p1: Connection<ConnectionType>, p2: StorageError) => StorageError {\n  function errorHandler(\n    xhr: Connection<ConnectionType>,\n    err: StorageError\n  ): StorageError {\n    let newErr: StorageError;\n    if (xhr.getStatus() === 401) {\n      if (\n        // This exact message string is the only consistent part of the\n        // server's error response that identifies it as an App Check error.\n        xhr.getErrorText().includes('Firebase App Check token is invalid')\n      ) {\n        newErr = unauthorizedApp();\n      } else {\n        newErr = unauthenticated();\n      }\n    } else {\n      if (xhr.getStatus() === 402) {\n        newErr = quotaExceeded(location.bucket);\n      } else {\n        if (xhr.getStatus() === 403) {\n          newErr = unauthorized(location.path);\n        } else {\n          newErr = err;\n        }\n      }\n    }\n    newErr.status = xhr.getStatus();\n    newErr.serverResponse = err.serverResponse;\n    return newErr;\n  }\n  return errorHandler;\n}\n\nexport function objectErrorHandler(\n  location: Location\n): (p1: Connection<ConnectionType>, p2: StorageError) => StorageError {\n  const shared = sharedErrorHandler(location);\n\n  function errorHandler(\n    xhr: Connection<ConnectionType>,\n    err: StorageError\n  ): StorageError {\n    let newErr = shared(xhr, err);\n    if (xhr.getStatus() === 404) {\n      newErr = objectNotFound(location.path);\n    }\n    newErr.serverResponse = err.serverResponse;\n    return newErr;\n  }\n  return errorHandler;\n}\n\nexport function getMetadata(\n  service: FirebaseStorageImpl,\n  location: Location,\n  mappings: Mappings\n): RequestInfo<string, Metadata> {\n  const urlPart = location.fullServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'GET';\n  const timeout = service.maxOperationRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    metadataHandler(service, mappings),\n    timeout\n  );\n  requestInfo.errorHandler = objectErrorHandler(location);\n  return requestInfo;\n}\n\nexport function list(\n  service: FirebaseStorageImpl,\n  location: Location,\n  delimiter?: string,\n  pageToken?: string | null,\n  maxResults?: number | null\n): RequestInfo<string, ListResult> {\n  const urlParams: UrlParams = {};\n  if (location.isRoot) {\n    urlParams['prefix'] = '';\n  } else {\n    urlParams['prefix'] = location.path + '/';\n  }\n  if (delimiter && delimiter.length > 0) {\n    urlParams['delimiter'] = delimiter;\n  }\n  if (pageToken) {\n    urlParams['pageToken'] = pageToken;\n  }\n  if (maxResults) {\n    urlParams['maxResults'] = maxResults;\n  }\n  const urlPart = location.bucketOnlyServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'GET';\n  const timeout = service.maxOperationRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    listHandler(service, location.bucket),\n    timeout\n  );\n  requestInfo.urlParams = urlParams;\n  requestInfo.errorHandler = sharedErrorHandler(location);\n  return requestInfo;\n}\n\nexport function getBytes<I extends ConnectionType>(\n  service: FirebaseStorageImpl,\n  location: Location,\n  maxDownloadSizeBytes?: number\n): RequestInfo<I, I> {\n  const urlPart = location.fullServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol) + '?alt=media';\n  const method = 'GET';\n  const timeout = service.maxOperationRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    (_: Connection<I>, data: I) => data,\n    timeout\n  );\n  requestInfo.errorHandler = objectErrorHandler(location);\n  if (maxDownloadSizeBytes !== undefined) {\n    requestInfo.headers['Range'] = `bytes=0-${maxDownloadSizeBytes}`;\n    requestInfo.successCodes = [200 /* OK */, 206 /* Partial Content */];\n  }\n  return requestInfo;\n}\n\nexport function getDownloadUrl(\n  service: FirebaseStorageImpl,\n  location: Location,\n  mappings: Mappings\n): RequestInfo<string, string | null> {\n  const urlPart = location.fullServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'GET';\n  const timeout = service.maxOperationRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    downloadUrlHandler(service, mappings),\n    timeout\n  );\n  requestInfo.errorHandler = objectErrorHandler(location);\n  return requestInfo;\n}\n\nexport function updateMetadata(\n  service: FirebaseStorageImpl,\n  location: Location,\n  metadata: Partial<Metadata>,\n  mappings: Mappings\n): RequestInfo<string, Metadata> {\n  const urlPart = location.fullServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'PATCH';\n  const body = toResourceString(metadata, mappings);\n  const headers = { 'Content-Type': 'application/json; charset=utf-8' };\n  const timeout = service.maxOperationRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    metadataHandler(service, mappings),\n    timeout\n  );\n  requestInfo.headers = headers;\n  requestInfo.body = body;\n  requestInfo.errorHandler = objectErrorHandler(location);\n  return requestInfo;\n}\n\nexport function deleteObject(\n  service: FirebaseStorageImpl,\n  location: Location\n): RequestInfo<string, void> {\n  const urlPart = location.fullServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'DELETE';\n  const timeout = service.maxOperationRetryTime;\n\n  function handler(_xhr: Connection<string>, _text: string): void {}\n  const requestInfo = new RequestInfo(url, method, handler, timeout);\n  requestInfo.successCodes = [200, 204];\n  requestInfo.errorHandler = objectErrorHandler(location);\n  return requestInfo;\n}\n\nexport function determineContentType_(\n  metadata: Metadata | null,\n  blob: FbsBlob | null\n): string {\n  return (\n    (metadata && metadata['contentType']) ||\n    (blob && blob.type()) ||\n    'application/octet-stream'\n  );\n}\n\nexport function metadataForUpload_(\n  location: Location,\n  blob: FbsBlob,\n  metadata?: Metadata | null\n): Metadata {\n  const metadataClone = Object.assign({}, metadata);\n  metadataClone['fullPath'] = location.path;\n  metadataClone['size'] = blob.size();\n  if (!metadataClone['contentType']) {\n    metadataClone['contentType'] = determineContentType_(null, blob);\n  }\n  return metadataClone;\n}\n\n/**\n * Prepare RequestInfo for uploads as Content-Type: multipart.\n */\nexport function multipartUpload(\n  service: FirebaseStorageImpl,\n  location: Location,\n  mappings: Mappings,\n  blob: FbsBlob,\n  metadata?: Metadata | null\n): RequestInfo<string, Metadata> {\n  const urlPart = location.bucketOnlyServerUrl();\n  const headers: { [prop: string]: string } = {\n    'X-Goog-Upload-Protocol': 'multipart'\n  };\n\n  function genBoundary(): string {\n    let str = '';\n    for (let i = 0; i < 2; i++) {\n      str = str + Math.random().toString().slice(2);\n    }\n    return str;\n  }\n  const boundary = genBoundary();\n  headers['Content-Type'] = 'multipart/related; boundary=' + boundary;\n  const metadata_ = metadataForUpload_(location, blob, metadata);\n  const metadataString = toResourceString(metadata_, mappings);\n  const preBlobPart =\n    '--' +\n    boundary +\n    '\\r\\n' +\n    'Content-Type: application/json; charset=utf-8\\r\\n\\r\\n' +\n    metadataString +\n    '\\r\\n--' +\n    boundary +\n    '\\r\\n' +\n    'Content-Type: ' +\n    metadata_['contentType'] +\n    '\\r\\n\\r\\n';\n  const postBlobPart = '\\r\\n--' + boundary + '--';\n  const body = FbsBlob.getBlob(preBlobPart, blob, postBlobPart);\n  if (body === null) {\n    throw cannotSliceBlob();\n  }\n  const urlParams: UrlParams = { name: metadata_['fullPath']! };\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'POST';\n  const timeout = service.maxUploadRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    metadataHandler(service, mappings),\n    timeout\n  );\n  requestInfo.urlParams = urlParams;\n  requestInfo.headers = headers;\n  requestInfo.body = body.uploadData();\n  requestInfo.errorHandler = sharedErrorHandler(location);\n  return requestInfo;\n}\n\n/**\n * @param current The number of bytes that have been uploaded so far.\n * @param total The total number of bytes in the upload.\n * @param opt_finalized True if the server has finished the upload.\n * @param opt_metadata The upload metadata, should\n *     only be passed if opt_finalized is true.\n */\nexport class ResumableUploadStatus {\n  finalized: boolean;\n  metadata: Metadata | null;\n\n  constructor(\n    public current: number,\n    public total: number,\n    finalized?: boolean,\n    metadata?: Metadata | null\n  ) {\n    this.finalized = !!finalized;\n    this.metadata = metadata || null;\n  }\n}\n\nexport function checkResumeHeader_(\n  xhr: Connection<string>,\n  allowed?: string[]\n): string {\n  let status: string | null = null;\n  try {\n    status = xhr.getResponseHeader('X-Goog-Upload-Status');\n  } catch (e) {\n    handlerCheck(false);\n  }\n  const allowedStatus = allowed || ['active'];\n  handlerCheck(!!status && allowedStatus.indexOf(status) !== -1);\n  return status as string;\n}\n\nexport function createResumableUpload(\n  service: FirebaseStorageImpl,\n  location: Location,\n  mappings: Mappings,\n  blob: FbsBlob,\n  metadata?: Metadata | null\n): RequestInfo<string, string> {\n  const urlPart = location.bucketOnlyServerUrl();\n  const metadataForUpload = metadataForUpload_(location, blob, metadata);\n  const urlParams: UrlParams = { name: metadataForUpload['fullPath']! };\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'POST';\n  const headers = {\n    'X-Goog-Upload-Protocol': 'resumable',\n    'X-Goog-Upload-Command': 'start',\n    'X-Goog-Upload-Header-Content-Length': `${blob.size()}`,\n    'X-Goog-Upload-Header-Content-Type': metadataForUpload['contentType']!,\n    'Content-Type': 'application/json; charset=utf-8'\n  };\n  const body = toResourceString(metadataForUpload, mappings);\n  const timeout = service.maxUploadRetryTime;\n\n  function handler(xhr: Connection<string>): string {\n    checkResumeHeader_(xhr);\n    let url;\n    try {\n      url = xhr.getResponseHeader('X-Goog-Upload-URL');\n    } catch (e) {\n      handlerCheck(false);\n    }\n    handlerCheck(isString(url));\n    return url as string;\n  }\n  const requestInfo = new RequestInfo(url, method, handler, timeout);\n  requestInfo.urlParams = urlParams;\n  requestInfo.headers = headers;\n  requestInfo.body = body;\n  requestInfo.errorHandler = sharedErrorHandler(location);\n  return requestInfo;\n}\n\n/**\n * @param url From a call to fbs.requests.createResumableUpload.\n */\nexport function getResumableUploadStatus(\n  service: FirebaseStorageImpl,\n  location: Location,\n  url: string,\n  blob: FbsBlob\n): RequestInfo<string, ResumableUploadStatus> {\n  const headers = { 'X-Goog-Upload-Command': 'query' };\n\n  function handler(xhr: Connection<string>): ResumableUploadStatus {\n    const status = checkResumeHeader_(xhr, ['active', 'final']);\n    let sizeString: string | null = null;\n    try {\n      sizeString = xhr.getResponseHeader('X-Goog-Upload-Size-Received');\n    } catch (e) {\n      handlerCheck(false);\n    }\n\n    if (!sizeString) {\n      // null or empty string\n      handlerCheck(false);\n    }\n\n    const size = Number(sizeString);\n    handlerCheck(!isNaN(size));\n    return new ResumableUploadStatus(size, blob.size(), status === 'final');\n  }\n  const method = 'POST';\n  const timeout = service.maxUploadRetryTime;\n  const requestInfo = new RequestInfo(url, method, handler, timeout);\n  requestInfo.headers = headers;\n  requestInfo.errorHandler = sharedErrorHandler(location);\n  return requestInfo;\n}\n\n/**\n * Any uploads via the resumable upload API must transfer a number of bytes\n * that is a multiple of this number.\n */\nexport const RESUMABLE_UPLOAD_CHUNK_SIZE: number = 256 * 1024;\n\n/**\n * @param url From a call to fbs.requests.createResumableUpload.\n * @param chunkSize Number of bytes to upload.\n * @param status The previous status.\n *     If not passed or null, we start from the beginning.\n * @throws fbs.Error If the upload is already complete, the passed in status\n *     has a final size inconsistent with the blob, or the blob cannot be sliced\n *     for upload.\n */\nexport function continueResumableUpload(\n  location: Location,\n  service: FirebaseStorageImpl,\n  url: string,\n  blob: FbsBlob,\n  chunkSize: number,\n  mappings: Mappings,\n  status?: ResumableUploadStatus | null,\n  progressCallback?: ((p1: number, p2: number) => void) | null\n): RequestInfo<string, ResumableUploadStatus> {\n  // TODO(andysoto): standardize on internal asserts\n  // assert(!(opt_status && opt_status.finalized));\n  const status_ = new ResumableUploadStatus(0, 0);\n  if (status) {\n    status_.current = status.current;\n    status_.total = status.total;\n  } else {\n    status_.current = 0;\n    status_.total = blob.size();\n  }\n  if (blob.size() !== status_.total) {\n    throw serverFileWrongSize();\n  }\n  const bytesLeft = status_.total - status_.current;\n  let bytesToUpload = bytesLeft;\n  if (chunkSize > 0) {\n    bytesToUpload = Math.min(bytesToUpload, chunkSize);\n  }\n  const startByte = status_.current;\n  const endByte = startByte + bytesToUpload;\n  let uploadCommand = '';\n  if (bytesToUpload === 0) {\n    uploadCommand = 'finalize';\n  } else if (bytesLeft === bytesToUpload) {\n    uploadCommand = 'upload, finalize';\n  } else {\n    uploadCommand = 'upload';\n  }\n  const headers = {\n    'X-Goog-Upload-Command': uploadCommand,\n    'X-Goog-Upload-Offset': `${status_.current}`\n  };\n  const body = blob.slice(startByte, endByte);\n  if (body === null) {\n    throw cannotSliceBlob();\n  }\n\n  function handler(\n    xhr: Connection<string>,\n    text: string\n  ): ResumableUploadStatus {\n    // TODO(andysoto): Verify the MD5 of each uploaded range:\n    // the 'x-range-md5' header comes back with status code 308 responses.\n    // We'll only be able to bail out though, because you can't re-upload a\n    // range that you previously uploaded.\n    const uploadStatus = checkResumeHeader_(xhr, ['active', 'final']);\n    const newCurrent = status_.current + bytesToUpload;\n    const size = blob.size();\n    let metadata;\n    if (uploadStatus === 'final') {\n      metadata = metadataHandler(service, mappings)(xhr, text);\n    } else {\n      metadata = null;\n    }\n    return new ResumableUploadStatus(\n      newCurrent,\n      size,\n      uploadStatus === 'final',\n      metadata\n    );\n  }\n  const method = 'POST';\n  const timeout = service.maxUploadRetryTime;\n  const requestInfo = new RequestInfo(url, method, handler, timeout);\n  requestInfo.headers = headers;\n  requestInfo.body = body.uploadData();\n  requestInfo.progressCallback = progressCallback || null;\n  requestInfo.errorHandler = sharedErrorHandler(location);\n  return requestInfo;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Enumerations used for upload tasks.\n */\n\n/**\n * An event that is triggered on a task.\n * @internal\n */\nexport type TaskEvent = string;\n\n/**\n * An event that is triggered on a task.\n * @internal\n */\nexport const TaskEvent = {\n  /**\n   * For this event,\n   * <ul>\n   *   <li>The `next` function is triggered on progress updates and when the\n   *       task is paused/resumed with an `UploadTaskSnapshot` as the first\n   *       argument.</li>\n   *   <li>The `error` function is triggered if the upload is canceled or fails\n   *       for another reason.</li>\n   *   <li>The `complete` function is triggered if the upload completes\n   *       successfully.</li>\n   * </ul>\n   */\n  STATE_CHANGED: 'state_changed'\n};\n\n/**\n * Internal enum for task state.\n */\nexport const enum InternalTaskState {\n  RUNNING = 'running',\n  PAUSING = 'pausing',\n  PAUSED = 'paused',\n  SUCCESS = 'success',\n  CANCELING = 'canceling',\n  CANCELED = 'canceled',\n  ERROR = 'error'\n}\n\n/**\n * Represents the current state of a running upload.\n * @internal\n */\nexport type TaskState = (typeof TaskState)[keyof typeof TaskState];\n\n// type keys = keyof TaskState\n/**\n * Represents the current state of a running upload.\n * @internal\n */\nexport const TaskState = {\n  /** The task is currently transferring data. */\n  RUNNING: 'running',\n\n  /** The task was paused by the user. */\n  PAUSED: 'paused',\n\n  /** The task completed successfully. */\n  SUCCESS: 'success',\n\n  /** The task was canceled. */\n  CANCELED: 'canceled',\n\n  /** The task failed with an error. */\n  ERROR: 'error'\n} as const;\n\nexport function taskStateFromInternalTaskState(\n  state: InternalTaskState\n): TaskState {\n  switch (state) {\n    case InternalTaskState.RUNNING:\n    case InternalTaskState.PAUSING:\n    case InternalTaskState.CANCELING:\n      return TaskState.RUNNING;\n    case InternalTaskState.PAUSED:\n      return TaskState.PAUSED;\n    case InternalTaskState.SUCCESS:\n      return TaskState.SUCCESS;\n    case InternalTaskState.CANCELED:\n      return TaskState.CANCELED;\n    case InternalTaskState.ERROR:\n      return TaskState.ERROR;\n    default:\n      // TODO(andysoto): assert(false);\n      return TaskState.ERROR;\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport { isFunction } from './type';\nimport { StorageError } from './error';\n\n/**\n * Function that is called once for each value in a stream of values.\n */\nexport type NextFn<T> = (value: T) => void;\n\n/**\n * A function that is called with a `StorageError`\n * if the event stream ends due to an error.\n */\nexport type ErrorFn = (error: StorageError) => void;\n\n/**\n * A function that is called if the event stream ends normally.\n */\nexport type CompleteFn = () => void;\n\n/**\n * Unsubscribes from a stream.\n */\nexport type Unsubscribe = () => void;\n\n/**\n * An observer identical to the `Observer` defined in packages/util except the\n * error passed into the ErrorFn is specifically a `StorageError`.\n */\nexport interface StorageObserver<T> {\n  /**\n   * Function that is called once for each value in the event stream.\n   */\n  next?: NextFn<T>;\n  /**\n   * A function that is called with a `StorageError`\n   * if the event stream ends due to an error.\n   */\n  error?: ErrorFn;\n  /**\n   * A function that is called if the event stream ends normally.\n   */\n  complete?: CompleteFn;\n}\n\n/**\n * Subscribes to an event stream.\n */\nexport type Subscribe<T> = (\n  next?: NextFn<T> | StorageObserver<T>,\n  error?: ErrorFn,\n  complete?: CompleteFn\n) => Unsubscribe;\n\nexport class Observer<T> implements StorageObserver<T> {\n  next?: NextFn<T>;\n  error?: ErrorFn;\n  complete?: CompleteFn;\n\n  constructor(\n    nextOrObserver?: NextFn<T> | StorageObserver<T>,\n    error?: ErrorFn,\n    complete?: CompleteFn\n  ) {\n    const asFunctions =\n      isFunction(nextOrObserver) || error != null || complete != null;\n    if (asFunctions) {\n      this.next = nextOrObserver as NextFn<T>;\n      this.error = error ?? undefined;\n      this.complete = complete ?? undefined;\n    } else {\n      const observer = nextOrObserver as {\n        next?: NextFn<T>;\n        error?: ErrorFn;\n        complete?: CompleteFn;\n      };\n      this.next = observer.next;\n      this.error = observer.error;\n      this.complete = observer.complete;\n    }\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * Returns a function that invokes f with its arguments asynchronously as a\n * microtask, i.e. as soon as possible after the current script returns back\n * into browser code.\n */\n// eslint-disable-next-line @typescript-eslint/ban-types\nexport function async(f: Function): Function {\n  return (...argsToForward: unknown[]) => {\n    // eslint-disable-next-line @typescript-eslint/no-floating-promises\n    Promise.resolve().then(() => f(...argsToForward));\n  };\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { isCloudWorkstation } from '@firebase/util';\nimport {\n  Connection,\n  ConnectionType,\n  ErrorCode,\n  Headers\n} from '../../implementation/connection';\nimport { internalError } from '../../implementation/error';\n\n/** An override for the text-based Connection. Used in tests. */\nlet textFactoryOverride: (() => Connection<string>) | null = null;\n\n/**\n * Network layer for browsers. We use this instead of goog.net.XhrIo because\n * goog.net.XhrIo is hyuuuuge and doesn't work in React Native on Android.\n */\nabstract class XhrConnection<T extends ConnectionType>\n  implements Connection<T>\n{\n  protected xhr_: XMLHttpRequest;\n  private errorCode_: ErrorCode;\n  private sendPromise_: Promise<void>;\n  protected sent_: boolean = false;\n\n  constructor() {\n    this.xhr_ = new XMLHttpRequest();\n    this.initXhr();\n    this.errorCode_ = ErrorCode.NO_ERROR;\n    this.sendPromise_ = new Promise(resolve => {\n      this.xhr_.addEventListener('abort', () => {\n        this.errorCode_ = ErrorCode.ABORT;\n        resolve();\n      });\n      this.xhr_.addEventListener('error', () => {\n        this.errorCode_ = ErrorCode.NETWORK_ERROR;\n        resolve();\n      });\n      this.xhr_.addEventListener('load', () => {\n        resolve();\n      });\n    });\n  }\n\n  abstract initXhr(): void;\n\n  send(\n    url: string,\n    method: string,\n    isUsingEmulator: boolean,\n    body?: ArrayBufferView | Blob | string,\n    headers?: Headers\n  ): Promise<void> {\n    if (this.sent_) {\n      throw internalError('cannot .send() more than once');\n    }\n    if (isCloudWorkstation(url) && isUsingEmulator) {\n      this.xhr_.withCredentials = true;\n    }\n    this.sent_ = true;\n    this.xhr_.open(method, url, true);\n    if (headers !== undefined) {\n      for (const key in headers) {\n        if (headers.hasOwnProperty(key)) {\n          this.xhr_.setRequestHeader(key, headers[key].toString());\n        }\n      }\n    }\n    if (body !== undefined) {\n      this.xhr_.send(body);\n    } else {\n      this.xhr_.send();\n    }\n    return this.sendPromise_;\n  }\n\n  getErrorCode(): ErrorCode {\n    if (!this.sent_) {\n      throw internalError('cannot .getErrorCode() before sending');\n    }\n    return this.errorCode_;\n  }\n\n  getStatus(): number {\n    if (!this.sent_) {\n      throw internalError('cannot .getStatus() before sending');\n    }\n    try {\n      return this.xhr_.status;\n    } catch (e) {\n      return -1;\n    }\n  }\n\n  getResponse(): T {\n    if (!this.sent_) {\n      throw internalError('cannot .getResponse() before sending');\n    }\n    return this.xhr_.response;\n  }\n\n  getErrorText(): string {\n    if (!this.sent_) {\n      throw internalError('cannot .getErrorText() before sending');\n    }\n    return this.xhr_.statusText;\n  }\n\n  /** Aborts the request. */\n  abort(): void {\n    this.xhr_.abort();\n  }\n\n  getResponseHeader(header: string): string | null {\n    return this.xhr_.getResponseHeader(header);\n  }\n\n  addUploadProgressListener(listener: (p1: ProgressEvent) => void): void {\n    if (this.xhr_.upload != null) {\n      this.xhr_.upload.addEventListener('progress', listener);\n    }\n  }\n\n  removeUploadProgressListener(listener: (p1: ProgressEvent) => void): void {\n    if (this.xhr_.upload != null) {\n      this.xhr_.upload.removeEventListener('progress', listener);\n    }\n  }\n}\n\nexport class XhrTextConnection extends XhrConnection<string> {\n  initXhr(): void {\n    this.xhr_.responseType = 'text';\n  }\n}\n\nexport function newTextConnection(): Connection<string> {\n  return textFactoryOverride ? textFactoryOverride() : new XhrTextConnection();\n}\n\nexport class XhrBytesConnection extends XhrConnection<ArrayBuffer> {\n  private data_?: ArrayBuffer;\n\n  initXhr(): void {\n    this.xhr_.responseType = 'arraybuffer';\n  }\n}\n\nexport function newBytesConnection(): Connection<ArrayBuffer> {\n  return new XhrBytesConnection();\n}\n\nexport class XhrBlobConnection extends XhrConnection<Blob> {\n  initXhr(): void {\n    this.xhr_.responseType = 'blob';\n  }\n}\n\nexport function newBlobConnection(): Connection<Blob> {\n  return new XhrBlobConnection();\n}\n\nexport function newStreamConnection(): Connection<ReadableStream> {\n  throw new Error('Streams are only supported on Node');\n}\n\nexport function injectTestConnection(\n  factory: (() => Connection<string>) | null\n): void {\n  textFactoryOverride = factory;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * @fileoverview Defines types for interacting with blob transfer tasks.\n */\n\nimport { FbsBlob } from './implementation/blob';\nimport {\n  canceled,\n  StorageErrorCode,\n  StorageError,\n  retryLimitExceeded\n} from './implementation/error';\nimport {\n  InternalTaskState,\n  TaskEvent,\n  TaskState,\n  taskStateFromInternalTaskState\n} from './implementation/taskenums';\nimport { Metadata } from './metadata';\nimport {\n  Observer,\n  Subscribe,\n  Unsubscribe,\n  StorageObserver as StorageObserverInternal,\n  NextFn\n} from './implementation/observer';\nimport { Request } from './implementation/request';\nimport { UploadTaskSnapshot, StorageObserver } from './public-types';\nimport { async as fbsAsync } from './implementation/async';\nimport { Mappings, getMappings } from './implementation/metadata';\nimport {\n  createResumableUpload,\n  getResumableUploadStatus,\n  RESUMABLE_UPLOAD_CHUNK_SIZE,\n  ResumableUploadStatus,\n  continueResumableUpload,\n  getMetadata,\n  multipartUpload\n} from './implementation/requests';\nimport { Reference } from './reference';\nimport { newTextConnection } from './platform/connection';\nimport { isRetryStatusCode } from './implementation/utils';\nimport { CompleteFn } from '@firebase/util';\nimport { DEFAULT_MIN_SLEEP_TIME_MILLIS } from './implementation/constants';\n\n/**\n * Represents a blob being uploaded. Can be used to pause/resume/cancel the\n * upload and manage callbacks for various events.\n * @internal\n */\nexport class UploadTask {\n  private _ref: Reference;\n  /**\n   * The data to be uploaded.\n   */\n  _blob: FbsBlob;\n  /**\n   * Metadata related to the upload.\n   */\n  _metadata: Metadata | null;\n  private _mappings: Mappings;\n  /**\n   * Number of bytes transferred so far.\n   */\n  _transferred: number = 0;\n  private _needToFetchStatus: boolean = false;\n  private _needToFetchMetadata: boolean = false;\n  private _observers: Array<StorageObserverInternal<UploadTaskSnapshot>> = [];\n  private _resumable: boolean;\n  /**\n   * Upload state.\n   */\n  _state: InternalTaskState;\n  private _error?: StorageError = undefined;\n  private _uploadUrl?: string = undefined;\n  private _request?: Request<unknown> = undefined;\n  private _chunkMultiplier: number = 1;\n  private _errorHandler: (p1: StorageError) => void;\n  private _metadataErrorHandler: (p1: StorageError) => void;\n  private _resolve?: (p1: UploadTaskSnapshot) => void = undefined;\n  private _reject?: (p1: StorageError) => void = undefined;\n  private pendingTimeout?: ReturnType<typeof setTimeout>;\n  private _promise: Promise<UploadTaskSnapshot>;\n\n  private sleepTime: number;\n\n  private maxSleepTime: number;\n\n  isExponentialBackoffExpired(): boolean {\n    return this.sleepTime > this.maxSleepTime;\n  }\n\n  /**\n   * @param ref - The firebaseStorage.Reference object this task came\n   *     from, untyped to avoid cyclic dependencies.\n   * @param blob - The blob to upload.\n   */\n  constructor(ref: Reference, blob: FbsBlob, metadata: Metadata | null = null) {\n    this._ref = ref;\n    this._blob = blob;\n    this._metadata = metadata;\n    this._mappings = getMappings();\n    this._resumable = this._shouldDoResumable(this._blob);\n    this._state = InternalTaskState.RUNNING;\n    this._errorHandler = error => {\n      this._request = undefined;\n      this._chunkMultiplier = 1;\n      if (error._codeEquals(StorageErrorCode.CANCELED)) {\n        this._needToFetchStatus = true;\n        this.completeTransitions_();\n      } else {\n        const backoffExpired = this.isExponentialBackoffExpired();\n        if (isRetryStatusCode(error.status, [])) {\n          if (backoffExpired) {\n            error = retryLimitExceeded();\n          } else {\n            this.sleepTime = Math.max(\n              this.sleepTime * 2,\n              DEFAULT_MIN_SLEEP_TIME_MILLIS\n            );\n            this._needToFetchStatus = true;\n            this.completeTransitions_();\n            return;\n          }\n        }\n        this._error = error;\n        this._transition(InternalTaskState.ERROR);\n      }\n    };\n    this._metadataErrorHandler = error => {\n      this._request = undefined;\n      if (error._codeEquals(StorageErrorCode.CANCELED)) {\n        this.completeTransitions_();\n      } else {\n        this._error = error;\n        this._transition(InternalTaskState.ERROR);\n      }\n    };\n    this.sleepTime = 0;\n    this.maxSleepTime = this._ref.storage.maxUploadRetryTime;\n    this._promise = new Promise((resolve, reject) => {\n      this._resolve = resolve;\n      this._reject = reject;\n      this._start();\n    });\n\n    // Prevent uncaught rejections on the internal promise from bubbling out\n    // to the top level with a dummy handler.\n    this._promise.then(null, () => {});\n  }\n\n  private _makeProgressCallback(): (p1: number, p2: number) => void {\n    const sizeBefore = this._transferred;\n    return loaded => this._updateProgress(sizeBefore + loaded);\n  }\n\n  private _shouldDoResumable(blob: FbsBlob): boolean {\n    return blob.size() > 256 * 1024;\n  }\n\n  private _start(): void {\n    if (this._state !== InternalTaskState.RUNNING) {\n      // This can happen if someone pauses us in a resume callback, for example.\n      return;\n    }\n    if (this._request !== undefined) {\n      return;\n    }\n    if (this._resumable) {\n      if (this._uploadUrl === undefined) {\n        this._createResumable();\n      } else {\n        if (this._needToFetchStatus) {\n          this._fetchStatus();\n        } else {\n          if (this._needToFetchMetadata) {\n            // Happens if we miss the metadata on upload completion.\n            this._fetchMetadata();\n          } else {\n            this.pendingTimeout = setTimeout(() => {\n              this.pendingTimeout = undefined;\n              this._continueUpload();\n            }, this.sleepTime);\n          }\n        }\n      }\n    } else {\n      this._oneShotUpload();\n    }\n  }\n\n  private _resolveToken(\n    callback: (authToken: string | null, appCheckToken: string | null) => void\n  ): void {\n    // eslint-disable-next-line @typescript-eslint/no-floating-promises\n    Promise.all([\n      this._ref.storage._getAuthToken(),\n      this._ref.storage._getAppCheckToken()\n    ]).then(([authToken, appCheckToken]) => {\n      switch (this._state) {\n        case InternalTaskState.RUNNING:\n          callback(authToken, appCheckToken);\n          break;\n        case InternalTaskState.CANCELING:\n          this._transition(InternalTaskState.CANCELED);\n          break;\n        case InternalTaskState.PAUSING:\n          this._transition(InternalTaskState.PAUSED);\n          break;\n        default:\n      }\n    });\n  }\n\n  // TODO(andysoto): assert false\n\n  private _createResumable(): void {\n    this._resolveToken((authToken, appCheckToken) => {\n      const requestInfo = createResumableUpload(\n        this._ref.storage,\n        this._ref._location,\n        this._mappings,\n        this._blob,\n        this._metadata\n      );\n      const createRequest = this._ref.storage._makeRequest(\n        requestInfo,\n        newTextConnection,\n        authToken,\n        appCheckToken\n      );\n      this._request = createRequest;\n      createRequest.getPromise().then((url: string) => {\n        this._request = undefined;\n        this._uploadUrl = url;\n        this._needToFetchStatus = false;\n        this.completeTransitions_();\n      }, this._errorHandler);\n    });\n  }\n\n  private _fetchStatus(): void {\n    // TODO(andysoto): assert(this.uploadUrl_ !== null);\n    const url = this._uploadUrl as string;\n    this._resolveToken((authToken, appCheckToken) => {\n      const requestInfo = getResumableUploadStatus(\n        this._ref.storage,\n        this._ref._location,\n        url,\n        this._blob\n      );\n      const statusRequest = this._ref.storage._makeRequest(\n        requestInfo,\n        newTextConnection,\n        authToken,\n        appCheckToken\n      );\n      this._request = statusRequest;\n      statusRequest.getPromise().then(status => {\n        status = status as ResumableUploadStatus;\n        this._request = undefined;\n        this._updateProgress(status.current);\n        this._needToFetchStatus = false;\n        if (status.finalized) {\n          this._needToFetchMetadata = true;\n        }\n        this.completeTransitions_();\n      }, this._errorHandler);\n    });\n  }\n\n  private _continueUpload(): void {\n    const chunkSize = RESUMABLE_UPLOAD_CHUNK_SIZE * this._chunkMultiplier;\n    const status = new ResumableUploadStatus(\n      this._transferred,\n      this._blob.size()\n    );\n\n    // TODO(andysoto): assert(this.uploadUrl_ !== null);\n    const url = this._uploadUrl as string;\n    this._resolveToken((authToken, appCheckToken) => {\n      let requestInfo;\n      try {\n        requestInfo = continueResumableUpload(\n          this._ref._location,\n          this._ref.storage,\n          url,\n          this._blob,\n          chunkSize,\n          this._mappings,\n          status,\n          this._makeProgressCallback()\n        );\n      } catch (e) {\n        this._error = e as StorageError;\n        this._transition(InternalTaskState.ERROR);\n        return;\n      }\n      const uploadRequest = this._ref.storage._makeRequest(\n        requestInfo,\n        newTextConnection,\n        authToken,\n        appCheckToken,\n        /*retry=*/ false // Upload requests should not be retried as each retry should be preceded by another query request. Which is handled in this file.\n      );\n      this._request = uploadRequest;\n      uploadRequest.getPromise().then((newStatus: ResumableUploadStatus) => {\n        this._increaseMultiplier();\n        this._request = undefined;\n        this._updateProgress(newStatus.current);\n        if (newStatus.finalized) {\n          this._metadata = newStatus.metadata;\n          this._transition(InternalTaskState.SUCCESS);\n        } else {\n          this.completeTransitions_();\n        }\n      }, this._errorHandler);\n    });\n  }\n\n  private _increaseMultiplier(): void {\n    const currentSize = RESUMABLE_UPLOAD_CHUNK_SIZE * this._chunkMultiplier;\n\n    // Max chunk size is 32M.\n    if (currentSize * 2 < 32 * 1024 * 1024) {\n      this._chunkMultiplier *= 2;\n    }\n  }\n\n  private _fetchMetadata(): void {\n    this._resolveToken((authToken, appCheckToken) => {\n      const requestInfo = getMetadata(\n        this._ref.storage,\n        this._ref._location,\n        this._mappings\n      );\n      const metadataRequest = this._ref.storage._makeRequest(\n        requestInfo,\n        newTextConnection,\n        authToken,\n        appCheckToken\n      );\n      this._request = metadataRequest;\n      metadataRequest.getPromise().then(metadata => {\n        this._request = undefined;\n        this._metadata = metadata;\n        this._transition(InternalTaskState.SUCCESS);\n      }, this._metadataErrorHandler);\n    });\n  }\n\n  private _oneShotUpload(): void {\n    this._resolveToken((authToken, appCheckToken) => {\n      const requestInfo = multipartUpload(\n        this._ref.storage,\n        this._ref._location,\n        this._mappings,\n        this._blob,\n        this._metadata\n      );\n      const multipartRequest = this._ref.storage._makeRequest(\n        requestInfo,\n        newTextConnection,\n        authToken,\n        appCheckToken\n      );\n      this._request = multipartRequest;\n      multipartRequest.getPromise().then(metadata => {\n        this._request = undefined;\n        this._metadata = metadata;\n        this._updateProgress(this._blob.size());\n        this._transition(InternalTaskState.SUCCESS);\n      }, this._errorHandler);\n    });\n  }\n\n  private _updateProgress(transferred: number): void {\n    const old = this._transferred;\n    this._transferred = transferred;\n\n    // A progress update can make the \"transferred\" value smaller (e.g. a\n    // partial upload not completed by server, after which the \"transferred\"\n    // value may reset to the value at the beginning of the request).\n    if (this._transferred !== old) {\n      this._notifyObservers();\n    }\n  }\n\n  private _transition(state: InternalTaskState): void {\n    if (this._state === state) {\n      return;\n    }\n    switch (state) {\n      case InternalTaskState.CANCELING:\n      case InternalTaskState.PAUSING:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.RUNNING ||\n        //        this.state_ === InternalTaskState.PAUSING);\n        this._state = state;\n        if (this._request !== undefined) {\n          this._request.cancel();\n        } else if (this.pendingTimeout) {\n          clearTimeout(this.pendingTimeout);\n          this.pendingTimeout = undefined;\n          this.completeTransitions_();\n        }\n        break;\n      case InternalTaskState.RUNNING:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.PAUSED ||\n        //        this.state_ === InternalTaskState.PAUSING);\n        const wasPaused = this._state === InternalTaskState.PAUSED;\n        this._state = state;\n        if (wasPaused) {\n          this._notifyObservers();\n          this._start();\n        }\n        break;\n      case InternalTaskState.PAUSED:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.PAUSING);\n        this._state = state;\n        this._notifyObservers();\n        break;\n      case InternalTaskState.CANCELED:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.PAUSED ||\n        //        this.state_ === InternalTaskState.CANCELING);\n        this._error = canceled();\n        this._state = state;\n        this._notifyObservers();\n        break;\n      case InternalTaskState.ERROR:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.RUNNING ||\n        //        this.state_ === InternalTaskState.PAUSING ||\n        //        this.state_ === InternalTaskState.CANCELING);\n        this._state = state;\n        this._notifyObservers();\n        break;\n      case InternalTaskState.SUCCESS:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.RUNNING ||\n        //        this.state_ === InternalTaskState.PAUSING ||\n        //        this.state_ === InternalTaskState.CANCELING);\n        this._state = state;\n        this._notifyObservers();\n        break;\n      default: // Ignore\n    }\n  }\n\n  private completeTransitions_(): void {\n    switch (this._state) {\n      case InternalTaskState.PAUSING:\n        this._transition(InternalTaskState.PAUSED);\n        break;\n      case InternalTaskState.CANCELING:\n        this._transition(InternalTaskState.CANCELED);\n        break;\n      case InternalTaskState.RUNNING:\n        this._start();\n        break;\n      default:\n        // TODO(andysoto): assert(false);\n        break;\n    }\n  }\n\n  /**\n   * A snapshot of the current task state.\n   */\n  get snapshot(): UploadTaskSnapshot {\n    const externalState = taskStateFromInternalTaskState(this._state);\n    return {\n      bytesTransferred: this._transferred,\n      totalBytes: this._blob.size(),\n      state: externalState,\n      metadata: this._metadata!,\n      task: this,\n      ref: this._ref\n    };\n  }\n\n  /**\n   * Adds a callback for an event.\n   * @param type - The type of event to listen for.\n   * @param nextOrObserver -\n   *     The `next` function, which gets called for each item in\n   *     the event stream, or an observer object with some or all of these three\n   *     properties (`next`, `error`, `complete`).\n   * @param error - A function that gets called with a `StorageError`\n   *     if the event stream ends due to an error.\n   * @param completed - A function that gets called if the\n   *     event stream ends normally.\n   * @returns\n   *     If only the event argument is passed, returns a function you can use to\n   *     add callbacks (see the examples above). If more than just the event\n   *     argument is passed, returns a function you can call to unregister the\n   *     callbacks.\n   */\n  on(\n    type: TaskEvent,\n    nextOrObserver?:\n      | StorageObserver<UploadTaskSnapshot>\n      | null\n      | ((snapshot: UploadTaskSnapshot) => unknown),\n    error?: ((a: StorageError) => unknown) | null,\n    completed?: CompleteFn | null\n  ): Unsubscribe | Subscribe<UploadTaskSnapshot> {\n    // Note: `type` isn't being used. Its type is also incorrect. TaskEvent should not be a string.\n    const observer = new Observer(\n      (nextOrObserver as\n        | StorageObserverInternal<UploadTaskSnapshot>\n        | NextFn<UploadTaskSnapshot>) || undefined,\n      error || undefined,\n      completed || undefined\n    );\n    this._addObserver(observer);\n    return () => {\n      this._removeObserver(observer);\n    };\n  }\n\n  /**\n   * This object behaves like a Promise, and resolves with its snapshot data\n   * when the upload completes.\n   * @param onFulfilled - The fulfillment callback. Promise chaining works as normal.\n   * @param onRejected - The rejection callback.\n   */\n  then<U>(\n    onFulfilled?: ((value: UploadTaskSnapshot) => U | Promise<U>) | null,\n    onRejected?: ((error: StorageError) => U | Promise<U>) | null\n  ): Promise<U> {\n    // These casts are needed so that TypeScript can infer the types of the\n    // resulting Promise.\n    return this._promise.then<U>(\n      onFulfilled as (value: UploadTaskSnapshot) => U | Promise<U>,\n      onRejected as ((error: unknown) => Promise<never>) | null\n    );\n  }\n\n  /**\n   * Equivalent to calling `then(null, onRejected)`.\n   */\n  catch<T>(onRejected: (p1: StorageError) => T | Promise<T>): Promise<T> {\n    return this.then(null, onRejected);\n  }\n\n  /**\n   * Adds the given observer.\n   */\n  private _addObserver(observer: Observer<UploadTaskSnapshot>): void {\n    this._observers.push(observer);\n    this._notifyObserver(observer);\n  }\n\n  /**\n   * Removes the given observer.\n   */\n  private _removeObserver(observer: Observer<UploadTaskSnapshot>): void {\n    const i = this._observers.indexOf(observer);\n    if (i !== -1) {\n      this._observers.splice(i, 1);\n    }\n  }\n\n  private _notifyObservers(): void {\n    this._finishPromise();\n    const observers = this._observers.slice();\n    observers.forEach(observer => {\n      this._notifyObserver(observer);\n    });\n  }\n\n  private _finishPromise(): void {\n    if (this._resolve !== undefined) {\n      let triggered = true;\n      switch (taskStateFromInternalTaskState(this._state)) {\n        case TaskState.SUCCESS:\n          fbsAsync(this._resolve.bind(null, this.snapshot))();\n          break;\n        case TaskState.CANCELED:\n        case TaskState.ERROR:\n          const toCall = this._reject as (p1: StorageError) => void;\n          fbsAsync(toCall.bind(null, this._error as StorageError))();\n          break;\n        default:\n          triggered = false;\n          break;\n      }\n      if (triggered) {\n        this._resolve = undefined;\n        this._reject = undefined;\n      }\n    }\n  }\n\n  private _notifyObserver(observer: Observer<UploadTaskSnapshot>): void {\n    const externalState = taskStateFromInternalTaskState(this._state);\n    switch (externalState) {\n      case TaskState.RUNNING:\n      case TaskState.PAUSED:\n        if (observer.next) {\n          fbsAsync(observer.next.bind(observer, this.snapshot))();\n        }\n        break;\n      case TaskState.SUCCESS:\n        if (observer.complete) {\n          fbsAsync(observer.complete.bind(observer))();\n        }\n        break;\n      case TaskState.CANCELED:\n      case TaskState.ERROR:\n        if (observer.error) {\n          fbsAsync(\n            observer.error.bind(observer, this._error as StorageError)\n          )();\n        }\n        break;\n      default:\n        // TODO(andysoto): assert(false);\n        if (observer.error) {\n          fbsAsync(\n            observer.error.bind(observer, this._error as StorageError)\n          )();\n        }\n    }\n  }\n\n  /**\n   * Resumes a paused task. Has no effect on a currently running or failed task.\n   * @returns True if the operation took effect, false if ignored.\n   */\n  resume(): boolean {\n    const valid =\n      this._state === InternalTaskState.PAUSED ||\n      this._state === InternalTaskState.PAUSING;\n    if (valid) {\n      this._transition(InternalTaskState.RUNNING);\n    }\n    return valid;\n  }\n\n  /**\n   * Pauses a currently running task. Has no effect on a paused or failed task.\n   * @returns True if the operation took effect, false if ignored.\n   */\n  pause(): boolean {\n    const valid = this._state === InternalTaskState.RUNNING;\n    if (valid) {\n      this._transition(InternalTaskState.PAUSING);\n    }\n    return valid;\n  }\n\n  /**\n   * Cancels a currently running or paused task. Has no effect on a complete or\n   * failed task.\n   * @returns True if the operation took effect, false if ignored.\n   */\n  cancel(): boolean {\n    const valid =\n      this._state === InternalTaskState.RUNNING ||\n      this._state === InternalTaskState.PAUSING;\n    if (valid) {\n      this._transition(InternalTaskState.CANCELING);\n    }\n    return valid;\n  }\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Defines the Firebase StorageReference class.\n */\n\nimport { FbsBlob } from './implementation/blob';\nimport { Location } from './implementation/location';\nimport { getMappings } from './implementation/metadata';\nimport { child, lastComponent, parent } from './implementation/path';\nimport {\n  deleteObject as requestsDeleteObject,\n  getBytes,\n  getDownloadUrl as requestsGetDownloadUrl,\n  getMetadata as requestsGetMetadata,\n  list as requestsList,\n  multipartUpload,\n  updateMetadata as requestsUpdateMetadata\n} from './implementation/requests';\nimport { ListOptions, UploadResult } from './public-types';\nimport { dataFromString, StringFormat } from './implementation/string';\nimport { Metadata } from './metadata';\nimport { FirebaseStorageImpl } from './service';\nimport { ListResult } from './list';\nimport { UploadTask } from './task';\nimport { invalidRootOperation, noDownloadURL } from './implementation/error';\nimport { validateNumber } from './implementation/type';\nimport {\n  newBlobConnection,\n  newBytesConnection,\n  newStreamConnection,\n  newTextConnection\n} from './platform/connection';\nimport { RequestInfo } from './implementation/requestinfo';\n\n/**\n * Provides methods to interact with a bucket in the Firebase Storage service.\n * @internal\n * @param _location - An fbs.location, or the URL at\n *     which to base this object, in one of the following forms:\n *         gs://<bucket>/<object-path>\n *         http[s]://firebasestorage.googleapis.com/\n *                     <api-version>/b/<bucket>/o/<object-path>\n *     Any query or fragment strings will be ignored in the http[s]\n *     format. If no value is passed, the storage object will use a URL based on\n *     the project ID of the base firebase.App instance.\n */\nexport class Reference {\n  _location: Location;\n\n  constructor(\n    private _service: FirebaseStorageImpl,\n    location: string | Location\n  ) {\n    if (location instanceof Location) {\n      this._location = location;\n    } else {\n      this._location = Location.makeFromUrl(location, _service.host);\n    }\n  }\n\n  /**\n   * Returns the URL for the bucket and path this object references,\n   *     in the form gs://<bucket>/<object-path>\n   * @override\n   */\n  toString(): string {\n    return 'gs://' + this._location.bucket + '/' + this._location.path;\n  }\n\n  protected _newRef(\n    service: FirebaseStorageImpl,\n    location: Location\n  ): Reference {\n    return new Reference(service, location);\n  }\n\n  /**\n   * A reference to the root of this object's bucket.\n   */\n  get root(): Reference {\n    const location = new Location(this._location.bucket, '');\n    return this._newRef(this._service, location);\n  }\n\n  /**\n   * The name of the bucket containing this reference's object.\n   */\n  get bucket(): string {\n    return this._location.bucket;\n  }\n\n  /**\n   * The full path of this object.\n   */\n  get fullPath(): string {\n    return this._location.path;\n  }\n\n  /**\n   * The short name of this object, which is the last component of the full path.\n   * For example, if fullPath is 'full/path/image.png', name is 'image.png'.\n   */\n  get name(): string {\n    return lastComponent(this._location.path);\n  }\n\n  /**\n   * The `StorageService` instance this `StorageReference` is associated with.\n   */\n  get storage(): FirebaseStorageImpl {\n    return this._service;\n  }\n\n  /**\n   * A `StorageReference` pointing to the parent location of this `StorageReference`, or null if\n   * this reference is the root.\n   */\n  get parent(): Reference | null {\n    const newPath = parent(this._location.path);\n    if (newPath === null) {\n      return null;\n    }\n    const location = new Location(this._location.bucket, newPath);\n    return new Reference(this._service, location);\n  }\n\n  /**\n   * Utility function to throw an error in methods that do not accept a root reference.\n   */\n  _throwIfRoot(name: string): void {\n    if (this._location.path === '') {\n      throw invalidRootOperation(name);\n    }\n  }\n}\n\n/**\n * Download the bytes at the object's location.\n * @returns A Promise containing the downloaded bytes.\n */\nexport function getBytesInternal(\n  ref: Reference,\n  maxDownloadSizeBytes?: number\n): Promise<ArrayBuffer> {\n  ref._throwIfRoot('getBytes');\n  const requestInfo = getBytes(\n    ref.storage,\n    ref._location,\n    maxDownloadSizeBytes\n  );\n  return ref.storage\n    .makeRequestWithTokens(requestInfo, newBytesConnection)\n    .then(bytes =>\n      maxDownloadSizeBytes !== undefined\n        ? // GCS may not honor the Range header for small files\n          (bytes as ArrayBuffer).slice(0, maxDownloadSizeBytes)\n        : (bytes as ArrayBuffer)\n    );\n}\n\n/**\n * Download the bytes at the object's location.\n * @returns A Promise containing the downloaded blob.\n */\nexport function getBlobInternal(\n  ref: Reference,\n  maxDownloadSizeBytes?: number\n): Promise<Blob> {\n  ref._throwIfRoot('getBlob');\n  const requestInfo = getBytes(\n    ref.storage,\n    ref._location,\n    maxDownloadSizeBytes\n  );\n  return ref.storage\n    .makeRequestWithTokens(requestInfo, newBlobConnection)\n    .then(blob =>\n      maxDownloadSizeBytes !== undefined\n        ? // GCS may not honor the Range header for small files\n          (blob as Blob).slice(0, maxDownloadSizeBytes)\n        : (blob as Blob)\n    );\n}\n\n/** Stream the bytes at the object's location. */\nexport function getStreamInternal(\n  ref: Reference,\n  maxDownloadSizeBytes?: number\n): ReadableStream {\n  ref._throwIfRoot('getStream');\n  const requestInfo: RequestInfo<ReadableStream, ReadableStream> = getBytes(\n    ref.storage,\n    ref._location,\n    maxDownloadSizeBytes\n  );\n\n  // Transforms the stream so that only `maxDownloadSizeBytes` bytes are piped to the result\n  const newMaxSizeTransform = (n: number): Transformer => {\n    let missingBytes = n;\n    return {\n      transform(chunk, controller: TransformStreamDefaultController) {\n        // GCS may not honor the Range header for small files\n        if (chunk.length < missingBytes) {\n          controller.enqueue(chunk);\n          missingBytes -= chunk.length;\n        } else {\n          controller.enqueue(chunk.slice(0, missingBytes));\n          controller.terminate();\n        }\n      }\n    };\n  };\n\n  const result =\n    maxDownloadSizeBytes !== undefined\n      ? new TransformStream(newMaxSizeTransform(maxDownloadSizeBytes))\n      : new TransformStream(); // The default transformer forwards all chunks to its readable side\n\n  ref.storage\n    .makeRequestWithTokens(requestInfo, newStreamConnection)\n    .then(readableStream => readableStream.pipeThrough(result))\n    .catch(err => result.writable.abort(err));\n\n  return result.readable;\n}\n\n/**\n * Uploads data to this object's location.\n * The upload is not resumable.\n *\n * @param ref - StorageReference where data should be uploaded.\n * @param data - The data to upload.\n * @param metadata - Metadata for the newly uploaded data.\n * @returns A Promise containing an UploadResult\n */\nexport function uploadBytes(\n  ref: Reference,\n  data: Blob | Uint8Array | ArrayBuffer,\n  metadata?: Metadata\n): Promise<UploadResult> {\n  ref._throwIfRoot('uploadBytes');\n  const requestInfo = multipartUpload(\n    ref.storage,\n    ref._location,\n    getMappings(),\n    new FbsBlob(data, true),\n    metadata\n  );\n  return ref.storage\n    .makeRequestWithTokens(requestInfo, newTextConnection)\n    .then(finalMetadata => {\n      return {\n        metadata: finalMetadata,\n        ref\n      };\n    });\n}\n\n/**\n * Uploads data to this object's location.\n * The upload can be paused and resumed, and exposes progress updates.\n * @public\n * @param ref - StorageReference where data should be uploaded.\n * @param data - The data to upload.\n * @param metadata - Metadata for the newly uploaded data.\n * @returns An UploadTask\n */\nexport function uploadBytesResumable(\n  ref: Reference,\n  data: Blob | Uint8Array | ArrayBuffer,\n  metadata?: Metadata\n): UploadTask {\n  ref._throwIfRoot('uploadBytesResumable');\n  return new UploadTask(ref, new FbsBlob(data), metadata);\n}\n\n/**\n * Uploads a string to this object's location.\n * The upload is not resumable.\n * @public\n * @param ref - StorageReference where string should be uploaded.\n * @param value - The string to upload.\n * @param format - The format of the string to upload.\n * @param metadata - Metadata for the newly uploaded string.\n * @returns A Promise containing an UploadResult\n */\nexport function uploadString(\n  ref: Reference,\n  value: string,\n  format: StringFormat = StringFormat.RAW,\n  metadata?: Metadata\n): Promise<UploadResult> {\n  ref._throwIfRoot('uploadString');\n  const data = dataFromString(format, value);\n  const metadataClone = { ...metadata } as Metadata;\n  if (metadataClone['contentType'] == null && data.contentType != null) {\n    metadataClone['contentType'] = data.contentType!;\n  }\n  return uploadBytes(ref, data.data, metadataClone);\n}\n\n/**\n * List all items (files) and prefixes (folders) under this storage reference.\n *\n * This is a helper method for calling list() repeatedly until there are\n * no more results. The default pagination size is 1000.\n *\n * Note: The results may not be consistent if objects are changed while this\n * operation is running.\n *\n * Warning: listAll may potentially consume too many resources if there are\n * too many results.\n * @public\n * @param ref - StorageReference to get list from.\n *\n * @returns A Promise that resolves with all the items and prefixes under\n *      the current storage reference. `prefixes` contains references to\n *      sub-directories and `items` contains references to objects in this\n *      folder. `nextPageToken` is never returned.\n */\nexport function listAll(ref: Reference): Promise<ListResult> {\n  const accumulator: ListResult = {\n    prefixes: [],\n    items: []\n  };\n  return listAllHelper(ref, accumulator).then(() => accumulator);\n}\n\n/**\n * Separated from listAll because async functions can't use \"arguments\".\n * @param ref\n * @param accumulator\n * @param pageToken\n */\nasync function listAllHelper(\n  ref: Reference,\n  accumulator: ListResult,\n  pageToken?: string\n): Promise<void> {\n  const opt: ListOptions = {\n    // maxResults is 1000 by default.\n    pageToken\n  };\n  const nextPage = await list(ref, opt);\n  accumulator.prefixes.push(...nextPage.prefixes);\n  accumulator.items.push(...nextPage.items);\n  if (nextPage.nextPageToken != null) {\n    await listAllHelper(ref, accumulator, nextPage.nextPageToken);\n  }\n}\n\n/**\n * List items (files) and prefixes (folders) under this storage reference.\n *\n * List API is only available for Firebase Rules Version 2.\n *\n * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'\n * delimited folder structure.\n * Refer to GCS's List API if you want to learn more.\n *\n * To adhere to Firebase Rules's Semantics, Firebase Storage does not\n * support objects whose paths end with \"/\" or contain two consecutive\n * \"/\"s. Firebase Storage List API will filter these unsupported objects.\n * list() may fail if there are too many unsupported objects in the bucket.\n * @public\n *\n * @param ref - StorageReference to get list from.\n * @param options - See ListOptions for details.\n * @returns A Promise that resolves with the items and prefixes.\n *      `prefixes` contains references to sub-folders and `items`\n *      contains references to objects in this folder. `nextPageToken`\n *      can be used to get the rest of the results.\n */\nexport function list(\n  ref: Reference,\n  options?: ListOptions | null\n): Promise<ListResult> {\n  if (options != null) {\n    if (typeof options.maxResults === 'number') {\n      validateNumber(\n        'options.maxResults',\n        /* minValue= */ 1,\n        /* maxValue= */ 1000,\n        options.maxResults\n      );\n    }\n  }\n  const op = options || {};\n  const requestInfo = requestsList(\n    ref.storage,\n    ref._location,\n    /*delimiter= */ '/',\n    op.pageToken,\n    op.maxResults\n  );\n  return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);\n}\n\n/**\n * A `Promise` that resolves with the metadata for this object. If this\n * object doesn't exist or metadata cannot be retrieved, the promise is\n * rejected.\n * @public\n * @param ref - StorageReference to get metadata from.\n */\nexport function getMetadata(ref: Reference): Promise<Metadata> {\n  ref._throwIfRoot('getMetadata');\n  const requestInfo = requestsGetMetadata(\n    ref.storage,\n    ref._location,\n    getMappings()\n  );\n  return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);\n}\n\n/**\n * Updates the metadata for this object.\n * @public\n * @param ref - StorageReference to update metadata for.\n * @param metadata - The new metadata for the object.\n *     Only values that have been explicitly set will be changed. Explicitly\n *     setting a value to null will remove the metadata.\n * @returns A `Promise` that resolves\n *     with the new metadata for this object.\n *     See `firebaseStorage.Reference.prototype.getMetadata`\n */\nexport function updateMetadata(\n  ref: Reference,\n  metadata: Partial<Metadata>\n): Promise<Metadata> {\n  ref._throwIfRoot('updateMetadata');\n  const requestInfo = requestsUpdateMetadata(\n    ref.storage,\n    ref._location,\n    metadata,\n    getMappings()\n  );\n  return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);\n}\n\n/**\n * Returns the download URL for the given Reference.\n * @public\n * @returns A `Promise` that resolves with the download\n *     URL for this object.\n */\nexport function getDownloadURL(ref: Reference): Promise<string> {\n  ref._throwIfRoot('getDownloadURL');\n  const requestInfo = requestsGetDownloadUrl(\n    ref.storage,\n    ref._location,\n    getMappings()\n  );\n  return ref.storage\n    .makeRequestWithTokens(requestInfo, newTextConnection)\n    .then(url => {\n      if (url === null) {\n        throw noDownloadURL();\n      }\n      return url;\n    });\n}\n\n/**\n * Deletes the object at this location.\n * @public\n * @param ref - StorageReference for object to delete.\n * @returns A `Promise` that resolves if the deletion succeeds.\n */\nexport function deleteObject(ref: Reference): Promise<void> {\n  ref._throwIfRoot('deleteObject');\n  const requestInfo = requestsDeleteObject(ref.storage, ref._location);\n  return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);\n}\n\n/**\n * Returns reference for object obtained by appending `childPath` to `ref`.\n *\n * @param ref - StorageReference to get child of.\n * @param childPath - Child path from provided ref.\n * @returns A reference to the object obtained by\n * appending childPath, removing any duplicate, beginning, or trailing\n * slashes.\n *\n */\nexport function _getChild(ref: Reference, childPath: string): Reference {\n  const newPath = child(ref._location.path, childPath);\n  const location = new Location(ref._location.bucket, newPath);\n  return new Reference(ref.storage, location);\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { Location } from './implementation/location';\nimport { FailRequest } from './implementation/failrequest';\nimport { Request, makeRequest } from './implementation/request';\nimport { RequestInfo } from './implementation/requestinfo';\nimport { Reference, _getChild } from './reference';\nimport { Provider } from '@firebase/component';\nimport { FirebaseAuthInternalName } from '@firebase/auth-interop-types';\nimport { AppCheckInternalComponentName } from '@firebase/app-check-interop-types';\n// eslint-disable-next-line import/no-extraneous-dependencies\nimport {\n  FirebaseApp,\n  FirebaseOptions,\n  _isFirebaseServerApp\n} from '@firebase/app';\nimport {\n  CONFIG_STORAGE_BUCKET_KEY,\n  DEFAULT_HOST,\n  DEFAULT_MAX_OPERATION_RETRY_TIME,\n  DEFAULT_MAX_UPLOAD_RETRY_TIME\n} from './implementation/constants';\nimport {\n  invalidArgument,\n  appDeleted,\n  noDefaultBucket\n} from './implementation/error';\nimport { validateNumber } from './implementation/type';\nimport { FirebaseStorage } from './public-types';\nimport {\n  createMockUserToken,\n  EmulatorMockTokenOptions,\n  isCloudWorkstation,\n  pingServer,\n  updateEmulatorBanner\n} from '@firebase/util';\nimport { Connection, ConnectionType } from './implementation/connection';\n\nexport function isUrl(path?: string): boolean {\n  return /^[A-Za-z]+:\\/\\//.test(path as string);\n}\n\n/**\n * Returns a firebaseStorage.Reference for the given url.\n */\nfunction refFromURL(service: FirebaseStorageImpl, url: string): Reference {\n  return new Reference(service, url);\n}\n\n/**\n * Returns a firebaseStorage.Reference for the given path in the default\n * bucket.\n */\nfunction refFromPath(\n  ref: FirebaseStorageImpl | Reference,\n  path?: string\n): Reference {\n  if (ref instanceof FirebaseStorageImpl) {\n    const service = ref;\n    if (service._bucket == null) {\n      throw noDefaultBucket();\n    }\n    const reference = new Reference(service, service._bucket!);\n    if (path != null) {\n      return refFromPath(reference, path);\n    } else {\n      return reference;\n    }\n  } else {\n    // ref is a Reference\n    if (path !== undefined) {\n      return _getChild(ref, path);\n    } else {\n      return ref;\n    }\n  }\n}\n\n/**\n * Returns a storage Reference for the given url.\n * @param storage - `Storage` instance.\n * @param url - URL. If empty, returns root reference.\n * @public\n */\nexport function ref(storage: FirebaseStorageImpl, url?: string): Reference;\n/**\n * Returns a storage Reference for the given path in the\n * default bucket.\n * @param storageOrRef - `Storage` service or storage `Reference`.\n * @param pathOrUrlStorage - path. If empty, returns root reference (if Storage\n * instance provided) or returns same reference (if Reference provided).\n * @public\n */\nexport function ref(\n  storageOrRef: FirebaseStorageImpl | Reference,\n  path?: string\n): Reference;\nexport function ref(\n  serviceOrRef: FirebaseStorageImpl | Reference,\n  pathOrUrl?: string\n): Reference | null {\n  if (pathOrUrl && isUrl(pathOrUrl)) {\n    if (serviceOrRef instanceof FirebaseStorageImpl) {\n      return refFromURL(serviceOrRef, pathOrUrl);\n    } else {\n      throw invalidArgument(\n        'To use ref(service, url), the first argument must be a Storage instance.'\n      );\n    }\n  } else {\n    return refFromPath(serviceOrRef, pathOrUrl);\n  }\n}\n\nfunction extractBucket(\n  host: string,\n  config?: FirebaseOptions\n): Location | null {\n  const bucketString = config?.[CONFIG_STORAGE_BUCKET_KEY];\n  if (bucketString == null) {\n    return null;\n  }\n  return Location.makeFromBucketSpec(bucketString, host);\n}\n\nexport function connectStorageEmulator(\n  storage: FirebaseStorageImpl,\n  host: string,\n  port: number,\n  options: {\n    mockUserToken?: EmulatorMockTokenOptions | string;\n  } = {}\n): void {\n  storage.host = `${host}:${port}`;\n  const useSsl = isCloudWorkstation(host);\n  // Workaround to get cookies in Firebase Studio\n  if (useSsl) {\n    void pingServer(`https://${storage.host}/b`);\n    updateEmulatorBanner('Storage', true);\n  }\n  storage._isUsingEmulator = true;\n  storage._protocol = useSsl ? 'https' : 'http';\n  const { mockUserToken } = options;\n  if (mockUserToken) {\n    storage._overrideAuthToken =\n      typeof mockUserToken === 'string'\n        ? mockUserToken\n        : createMockUserToken(mockUserToken, storage.app.options.projectId);\n  }\n}\n\n/**\n * A service that provides Firebase Storage Reference instances.\n * @param opt_url - gs:// url to a custom Storage Bucket\n *\n * @internal\n */\nexport class FirebaseStorageImpl implements FirebaseStorage {\n  _bucket: Location | null = null;\n  /**\n   * This string can be in the formats:\n   * - host\n   * - host:port\n   */\n  private _host: string = DEFAULT_HOST;\n  _protocol: string = 'https';\n  protected readonly _appId: string | null = null;\n  private readonly _requests: Set<Request<unknown>>;\n  private _deleted: boolean = false;\n  private _maxOperationRetryTime: number;\n  private _maxUploadRetryTime: number;\n  _overrideAuthToken?: string;\n\n  constructor(\n    /**\n     * FirebaseApp associated with this StorageService instance.\n     */\n    readonly app: FirebaseApp,\n    readonly _authProvider: Provider<FirebaseAuthInternalName>,\n    /**\n     * @internal\n     */\n    readonly _appCheckProvider: Provider<AppCheckInternalComponentName>,\n    /**\n     * @internal\n     */\n    readonly _url?: string,\n    readonly _firebaseVersion?: string,\n    public _isUsingEmulator = false\n  ) {\n    this._maxOperationRetryTime = DEFAULT_MAX_OPERATION_RETRY_TIME;\n    this._maxUploadRetryTime = DEFAULT_MAX_UPLOAD_RETRY_TIME;\n    this._requests = new Set();\n    if (_url != null) {\n      this._bucket = Location.makeFromBucketSpec(_url, this._host);\n    } else {\n      this._bucket = extractBucket(this._host, this.app.options);\n    }\n  }\n\n  /**\n   * The host string for this service, in the form of `host` or\n   * `host:port`.\n   */\n  get host(): string {\n    return this._host;\n  }\n\n  set host(host: string) {\n    this._host = host;\n    if (this._url != null) {\n      this._bucket = Location.makeFromBucketSpec(this._url, host);\n    } else {\n      this._bucket = extractBucket(host, this.app.options);\n    }\n  }\n\n  /**\n   * The maximum time to retry uploads in milliseconds.\n   */\n  get maxUploadRetryTime(): number {\n    return this._maxUploadRetryTime;\n  }\n\n  set maxUploadRetryTime(time: number) {\n    validateNumber(\n      'time',\n      /* minValue=*/ 0,\n      /* maxValue= */ Number.POSITIVE_INFINITY,\n      time\n    );\n    this._maxUploadRetryTime = time;\n  }\n\n  /**\n   * The maximum time to retry operations other than uploads or downloads in\n   * milliseconds.\n   */\n  get maxOperationRetryTime(): number {\n    return this._maxOperationRetryTime;\n  }\n\n  set maxOperationRetryTime(time: number) {\n    validateNumber(\n      'time',\n      /* minValue=*/ 0,\n      /* maxValue= */ Number.POSITIVE_INFINITY,\n      time\n    );\n    this._maxOperationRetryTime = time;\n  }\n\n  async _getAuthToken(): Promise<string | null> {\n    if (this._overrideAuthToken) {\n      return this._overrideAuthToken;\n    }\n    const auth = this._authProvider.getImmediate({ optional: true });\n    if (auth) {\n      const tokenData = await auth.getToken();\n      if (tokenData !== null) {\n        return tokenData.accessToken;\n      }\n    }\n    return null;\n  }\n\n  async _getAppCheckToken(): Promise<string | null> {\n    if (_isFirebaseServerApp(this.app) && this.app.settings.appCheckToken) {\n      return this.app.settings.appCheckToken;\n    }\n    const appCheck = this._appCheckProvider.getImmediate({ optional: true });\n    if (appCheck) {\n      const result = await appCheck.getToken();\n      // TODO: What do we want to do if there is an error getting the token?\n      // Context: appCheck.getToken() will never throw even if an error happened. In the error case, a dummy token will be\n      // returned along with an error field describing the error. In general, we shouldn't care about the error condition and just use\n      // the token (actual or dummy) to send requests.\n      return result.token;\n    }\n    return null;\n  }\n\n  /**\n   * Stop running requests and prevent more from being created.\n   */\n  _delete(): Promise<void> {\n    if (!this._deleted) {\n      this._deleted = true;\n      this._requests.forEach(request => request.cancel());\n      this._requests.clear();\n    }\n    return Promise.resolve();\n  }\n\n  /**\n   * Returns a new firebaseStorage.Reference object referencing this StorageService\n   * at the given Location.\n   */\n  _makeStorageReference(loc: Location): Reference {\n    return new Reference(this, loc);\n  }\n\n  /**\n   * @param requestInfo - HTTP RequestInfo object\n   * @param authToken - Firebase auth token\n   */\n  _makeRequest<I extends ConnectionType, O>(\n    requestInfo: RequestInfo<I, O>,\n    requestFactory: () => Connection<I>,\n    authToken: string | null,\n    appCheckToken: string | null,\n    retry = true\n  ): Request<O> {\n    if (!this._deleted) {\n      const request = makeRequest(\n        requestInfo,\n        this._appId,\n        authToken,\n        appCheckToken,\n        requestFactory,\n        this._firebaseVersion,\n        retry,\n        this._isUsingEmulator\n      );\n      this._requests.add(request);\n      // Request removes itself from set when complete.\n      request.getPromise().then(\n        () => this._requests.delete(request),\n        () => this._requests.delete(request)\n      );\n      return request;\n    } else {\n      return new FailRequest(appDeleted());\n    }\n  }\n\n  async makeRequestWithTokens<I extends ConnectionType, O>(\n    requestInfo: RequestInfo<I, O>,\n    requestFactory: () => Connection<I>\n  ): Promise<O> {\n    const [authToken, appCheckToken] = await Promise.all([\n      this._getAuthToken(),\n      this._getAppCheckToken()\n    ]);\n\n    return this._makeRequest(\n      requestInfo,\n      requestFactory,\n      authToken,\n      appCheckToken\n    ).getPromise();\n  }\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * Type constant for Firebase Storage.\n */\nexport const STORAGE_TYPE = 'storage';\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport { _getProvider, FirebaseApp, getApp } from '@firebase/app';\n\nimport {\n  ref as refInternal,\n  FirebaseStorageImpl,\n  connectStorageEmulator as connectEmulatorInternal\n} from './service';\nimport { Provider } from '@firebase/component';\n\nimport {\n  StorageReference,\n  FirebaseStorage,\n  UploadResult,\n  ListOptions,\n  ListResult,\n  UploadTask,\n  SettableMetadata,\n  UploadMetadata,\n  FullMetadata\n} from './public-types';\nimport { Metadata as MetadataInternal } from './metadata';\nimport {\n  uploadBytes as uploadBytesInternal,\n  uploadBytesResumable as uploadBytesResumableInternal,\n  uploadString as uploadStringInternal,\n  getMetadata as getMetadataInternal,\n  updateMetadata as updateMetadataInternal,\n  list as listInternal,\n  listAll as listAllInternal,\n  getDownloadURL as getDownloadURLInternal,\n  deleteObject as deleteObjectInternal,\n  Reference,\n  _getChild as _getChildInternal,\n  getBytesInternal\n} from './reference';\nimport { STORAGE_TYPE } from './constants';\nimport {\n  EmulatorMockTokenOptions,\n  getModularInstance,\n  getDefaultEmulatorHostnameAndPort\n} from '@firebase/util';\nimport { StringFormat } from './implementation/string';\n\nexport { EmulatorMockTokenOptions } from '@firebase/util';\n\nexport { StorageError, StorageErrorCode } from './implementation/error';\n\n/**\n * Public types.\n */\nexport * from './public-types';\n\nexport { Location as _Location } from './implementation/location';\nexport { UploadTask as _UploadTask } from './task';\nexport type { Reference as _Reference } from './reference';\nexport type { FirebaseStorageImpl as _FirebaseStorageImpl } from './service';\nexport { FbsBlob as _FbsBlob } from './implementation/blob';\nexport { dataFromString as _dataFromString } from './implementation/string';\nexport {\n  invalidRootOperation as _invalidRootOperation,\n  invalidArgument as _invalidArgument\n} from './implementation/error';\nexport {\n  TaskEvent as _TaskEvent,\n  TaskState as _TaskState\n} from './implementation/taskenums';\nexport { StringFormat };\n\n/**\n * Downloads the data at the object's location. Returns an error if the object\n * is not found.\n *\n * To use this functionality, you have to whitelist your app's origin in your\n * Cloud Storage bucket. See also\n * https://cloud.google.com/storage/docs/configuring-cors\n *\n * @public\n * @param ref - StorageReference where data should be downloaded.\n * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to\n * retrieve.\n * @returns A Promise containing the object's bytes\n */\nexport function getBytes(\n  ref: StorageReference,\n  maxDownloadSizeBytes?: number\n): Promise<ArrayBuffer> {\n  ref = getModularInstance(ref);\n  return getBytesInternal(ref as Reference, maxDownloadSizeBytes);\n}\n\n/**\n * Uploads data to this object's location.\n * The upload is not resumable.\n * @public\n * @param ref - {@link StorageReference} where data should be uploaded.\n * @param data - The data to upload.\n * @param metadata - Metadata for the data to upload.\n * @returns A Promise containing an UploadResult\n */\nexport function uploadBytes(\n  ref: StorageReference,\n  data: Blob | Uint8Array | ArrayBuffer,\n  metadata?: UploadMetadata\n): Promise<UploadResult> {\n  ref = getModularInstance(ref);\n  return uploadBytesInternal(\n    ref as Reference,\n    data,\n    metadata as MetadataInternal\n  );\n}\n\n/**\n * Uploads a string to this object's location.\n * The upload is not resumable.\n * @public\n * @param ref - {@link StorageReference} where string should be uploaded.\n * @param value - The string to upload.\n * @param format - The format of the string to upload.\n * @param metadata - Metadata for the string to upload.\n * @returns A Promise containing an UploadResult\n */\nexport function uploadString(\n  ref: StorageReference,\n  value: string,\n  format?: StringFormat,\n  metadata?: UploadMetadata\n): Promise<UploadResult> {\n  ref = getModularInstance(ref);\n  return uploadStringInternal(\n    ref as Reference,\n    value,\n    format,\n    metadata as MetadataInternal\n  );\n}\n\n/**\n * Uploads data to this object's location.\n * The upload can be paused and resumed, and exposes progress updates.\n * @public\n * @param ref - {@link StorageReference} where data should be uploaded.\n * @param data - The data to upload.\n * @param metadata - Metadata for the data to upload.\n * @returns An UploadTask\n */\nexport function uploadBytesResumable(\n  ref: StorageReference,\n  data: Blob | Uint8Array | ArrayBuffer,\n  metadata?: UploadMetadata\n): UploadTask {\n  ref = getModularInstance(ref);\n  return uploadBytesResumableInternal(\n    ref as Reference,\n    data,\n    metadata as MetadataInternal\n  ) as UploadTask;\n}\n\n/**\n * A `Promise` that resolves with the metadata for this object. If this\n * object doesn't exist or metadata cannot be retrieved, the promise is\n * rejected.\n * @public\n * @param ref - {@link StorageReference} to get metadata from.\n */\nexport function getMetadata(ref: StorageReference): Promise<FullMetadata> {\n  ref = getModularInstance(ref);\n  return getMetadataInternal(ref as Reference) as Promise<FullMetadata>;\n}\n\n/**\n * Updates the metadata for this object.\n * @public\n * @param ref - {@link StorageReference} to update metadata for.\n * @param metadata - The new metadata for the object.\n *     Only values that have been explicitly set will be changed. Explicitly\n *     setting a value to null will remove the metadata.\n * @returns A `Promise` that resolves with the new metadata for this object.\n */\nexport function updateMetadata(\n  ref: StorageReference,\n  metadata: SettableMetadata\n): Promise<FullMetadata> {\n  ref = getModularInstance(ref);\n  return updateMetadataInternal(\n    ref as Reference,\n    metadata as Partial<MetadataInternal>\n  ) as Promise<FullMetadata>;\n}\n\n/**\n * List items (files) and prefixes (folders) under this storage reference.\n *\n * List API is only available for Firebase Rules Version 2.\n *\n * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'\n * delimited folder structure.\n * Refer to GCS's List API if you want to learn more.\n *\n * To adhere to Firebase Rules's Semantics, Firebase Storage does not\n * support objects whose paths end with \"/\" or contain two consecutive\n * \"/\"s. Firebase Storage List API will filter these unsupported objects.\n * list() may fail if there are too many unsupported objects in the bucket.\n * @public\n *\n * @param ref - {@link StorageReference} to get list from.\n * @param options - See {@link ListOptions} for details.\n * @returns A `Promise` that resolves with the items and prefixes.\n *      `prefixes` contains references to sub-folders and `items`\n *      contains references to objects in this folder. `nextPageToken`\n *      can be used to get the rest of the results.\n */\nexport function list(\n  ref: StorageReference,\n  options?: ListOptions\n): Promise<ListResult> {\n  ref = getModularInstance(ref);\n  return listInternal(ref as Reference, options);\n}\n\n/**\n * List all items (files) and prefixes (folders) under this storage reference.\n *\n * This is a helper method for calling list() repeatedly until there are\n * no more results. The default pagination size is 1000.\n *\n * Note: The results may not be consistent if objects are changed while this\n * operation is running.\n *\n * Warning: `listAll` may potentially consume too many resources if there are\n * too many results.\n * @public\n * @param ref - {@link StorageReference} to get list from.\n *\n * @returns A `Promise` that resolves with all the items and prefixes under\n *      the current storage reference. `prefixes` contains references to\n *      sub-directories and `items` contains references to objects in this\n *      folder. `nextPageToken` is never returned.\n */\nexport function listAll(ref: StorageReference): Promise<ListResult> {\n  ref = getModularInstance(ref);\n  return listAllInternal(ref as Reference);\n}\n\n/**\n * Returns the download URL for the given {@link StorageReference}.\n * @public\n * @param ref - {@link StorageReference} to get the download URL for.\n * @returns A `Promise` that resolves with the download\n *     URL for this object.\n */\nexport function getDownloadURL(ref: StorageReference): Promise<string> {\n  ref = getModularInstance(ref);\n  return getDownloadURLInternal(ref as Reference);\n}\n\n/**\n * Deletes the object at this location.\n * @public\n * @param ref - {@link StorageReference} for object to delete.\n * @returns A `Promise` that resolves if the deletion succeeds.\n */\nexport function deleteObject(ref: StorageReference): Promise<void> {\n  ref = getModularInstance(ref);\n  return deleteObjectInternal(ref as Reference);\n}\n\n/**\n * Returns a {@link StorageReference} for the given url.\n * @param storage - {@link FirebaseStorage} instance.\n * @param url - URL. If empty, returns root reference.\n * @public\n */\nexport function ref(storage: FirebaseStorage, url?: string): StorageReference;\n/**\n * Returns a {@link StorageReference} for the given path in the\n * default bucket.\n * @param storageOrRef - {@link FirebaseStorage} or {@link StorageReference}.\n * @param pathOrUrlStorage - path. If empty, returns root reference (if {@link FirebaseStorage}\n * instance provided) or returns same reference (if {@link StorageReference} provided).\n * @public\n */\nexport function ref(\n  storageOrRef: FirebaseStorage | StorageReference,\n  path?: string\n): StorageReference;\nexport function ref(\n  serviceOrRef: FirebaseStorage | StorageReference,\n  pathOrUrl?: string\n): StorageReference | null {\n  serviceOrRef = getModularInstance(serviceOrRef);\n  return refInternal(\n    serviceOrRef as FirebaseStorageImpl | Reference,\n    pathOrUrl\n  );\n}\n\n/**\n * @internal\n */\nexport function _getChild(ref: StorageReference, childPath: string): Reference {\n  return _getChildInternal(ref as Reference, childPath);\n}\n\n/**\n * Gets a {@link FirebaseStorage} instance for the given Firebase app.\n * @public\n * @param app - Firebase app to get {@link FirebaseStorage} instance for.\n * @param bucketUrl - The gs:// url to your Firebase Storage Bucket.\n * If not passed, uses the app's default Storage Bucket.\n * @returns A {@link FirebaseStorage} instance.\n */\nexport function getStorage(\n  app: FirebaseApp = getApp(),\n  bucketUrl?: string\n): FirebaseStorage {\n  app = getModularInstance(app);\n  const storageProvider: Provider<'storage'> = _getProvider(app, STORAGE_TYPE);\n  const storageInstance = storageProvider.getImmediate({\n    identifier: bucketUrl\n  });\n  const emulator = getDefaultEmulatorHostnameAndPort('storage');\n  if (emulator) {\n    connectStorageEmulator(storageInstance, ...emulator);\n  }\n  return storageInstance;\n}\n\n/**\n * Modify this {@link FirebaseStorage} instance to communicate with the Cloud Storage emulator.\n *\n * @param storage - The {@link FirebaseStorage} instance\n * @param host - The emulator host (ex: localhost)\n * @param port - The emulator port (ex: 5001)\n * @param options - Emulator options. `options.mockUserToken` is the mock auth\n * token to use for unit testing Security Rules.\n * @public\n */\nexport function connectStorageEmulator(\n  storage: FirebaseStorage,\n  host: string,\n  port: number,\n  options: {\n    mockUserToken?: EmulatorMockTokenOptions | string;\n  } = {}\n): void {\n  connectEmulatorInternal(storage as FirebaseStorageImpl, host, port, options);\n}\n","/**\n * @license\n * Copyright 2021 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { StorageReference } from './public-types';\nimport { Reference, getBlobInternal } from './reference';\nimport { getModularInstance } from '@firebase/util';\n\n/**\n * Downloads the data at the object's location. Returns an error if the object\n * is not found.\n *\n * To use this functionality, you have to whitelist your app's origin in your\n * Cloud Storage bucket. See also\n * https://cloud.google.com/storage/docs/configuring-cors\n *\n * This API is not available in Node.\n *\n * @public\n * @param ref - StorageReference where data should be downloaded.\n * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to\n * retrieve.\n * @returns A Promise that resolves with a Blob containing the object's bytes\n */\nexport function getBlob(\n  ref: StorageReference,\n  maxDownloadSizeBytes?: number\n): Promise<Blob> {\n  ref = getModularInstance(ref);\n  return getBlobInternal(ref as Reference, maxDownloadSizeBytes);\n}\n\n/**\n * Downloads the data at the object's location. Raises an error event if the\n * object is not found.\n *\n * This API is only available in Node.\n *\n * @public\n * @param ref - StorageReference where data should be downloaded.\n * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to\n * retrieve.\n * @returns A stream with the object's data as bytes\n */\nexport function getStream(\n  ref: StorageReference,\n  maxDownloadSizeBytes?: number\n): ReadableStream {\n  throw new Error('getStream() is only supported by NodeJS builds');\n}\n","/**\n * Cloud Storage for Firebase\n *\n * @packageDocumentation\n */\n\n/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n// eslint-disable-next-line import/no-extraneous-dependencies\nimport {\n  _registerComponent,\n  registerVersion,\n  SDK_VERSION\n} from '@firebase/app';\n\nimport { FirebaseStorageImpl } from '../src/service';\nimport {\n  Component,\n  ComponentType,\n  ComponentContainer,\n  InstanceFactoryOptions\n} from '@firebase/component';\n\nimport { name, version } from '../package.json';\n\nimport { FirebaseStorage } from './public-types';\nimport { STORAGE_TYPE } from './constants';\n\nexport * from './api';\nexport * from './api.browser';\n\nfunction factory(\n  container: ComponentContainer,\n  { instanceIdentifier: url }: InstanceFactoryOptions\n): FirebaseStorage {\n  const app = container.getProvider('app').getImmediate();\n  const authProvider = container.getProvider('auth-internal');\n  const appCheckProvider = container.getProvider('app-check-internal');\n\n  return new FirebaseStorageImpl(\n    app,\n    authProvider,\n    appCheckProvider,\n    url,\n    SDK_VERSION\n  );\n}\n\nfunction registerStorage(): void {\n  _registerComponent(\n    new Component(\n      STORAGE_TYPE,\n      factory,\n      ComponentType.PUBLIC\n    ).setMultipleInstances(true)\n  );\n  //RUNTIME_ENV will be replaced during the compilation to \"node\" for nodejs and an empty string for browser\n  registerVersion(name, version, '__RUNTIME_ENV__');\n  // BUILD_TARGET will be replaced by values like esm, cjs, etc during the compilation\n  registerVersion(name, version, 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\ No newline at end of file
diff --git a/frontend-old/node_modules/@firebase/storage/dist/index.cjs.js b/frontend-old/node_modules/@firebase/storage/dist/index.cjs.js
new file mode 100644
index 0000000..4418bd0
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/index.cjs.js
@@ -0,0 +1,3685 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+var app = require('@firebase/app');
+var util = require('@firebase/util');
+var component = require('@firebase/component');
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Constants used in the Firebase Storage library.
+ */
+/**
+ * Domain name for firebase storage.
+ */
+const DEFAULT_HOST = 'firebasestorage.googleapis.com';
+/**
+ * The key in Firebase config json for the storage bucket.
+ */
+const CONFIG_STORAGE_BUCKET_KEY = 'storageBucket';
+/**
+ * 2 minutes
+ *
+ * The timeout for all operations except upload.
+ */
+const DEFAULT_MAX_OPERATION_RETRY_TIME = 2 * 60 * 1000;
+/**
+ * 10 minutes
+ *
+ * The timeout for upload.
+ */
+const DEFAULT_MAX_UPLOAD_RETRY_TIME = 10 * 60 * 1000;
+/**
+ * 1 second
+ */
+const DEFAULT_MIN_SLEEP_TIME_MILLIS = 1000;
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * An error returned by the Firebase Storage SDK.
+ * @public
+ */
+class StorageError extends util.FirebaseError {
+    /**
+     * @param code - A `StorageErrorCode` string to be prefixed with 'storage/' and
+     *  added to the end of the message.
+     * @param message  - Error message.
+     * @param status_ - Corresponding HTTP Status Code
+     */
+    constructor(code, message, status_ = 0) {
+        super(prependCode(code), `Firebase Storage: ${message} (${prependCode(code)})`);
+        this.status_ = status_;
+        /**
+         * Stores custom error data unique to the `StorageError`.
+         */
+        this.customData = { serverResponse: null };
+        this._baseMessage = this.message;
+        // Without this, `instanceof StorageError`, in tests for example,
+        // returns false.
+        Object.setPrototypeOf(this, StorageError.prototype);
+    }
+    get status() {
+        return this.status_;
+    }
+    set status(status) {
+        this.status_ = status;
+    }
+    /**
+     * Compares a `StorageErrorCode` against this error's code, filtering out the prefix.
+     */
+    _codeEquals(code) {
+        return prependCode(code) === this.code;
+    }
+    /**
+     * Optional response message that was added by the server.
+     */
+    get serverResponse() {
+        return this.customData.serverResponse;
+    }
+    set serverResponse(serverResponse) {
+        this.customData.serverResponse = serverResponse;
+        if (this.customData.serverResponse) {
+            this.message = `${this._baseMessage}\n${this.customData.serverResponse}`;
+        }
+        else {
+            this.message = this._baseMessage;
+        }
+    }
+}
+/**
+ * @public
+ * Error codes that can be attached to `StorageError` objects.
+ */
+exports.StorageErrorCode = void 0;
+(function (StorageErrorCode) {
+    // Shared between all platforms
+    StorageErrorCode["UNKNOWN"] = "unknown";
+    StorageErrorCode["OBJECT_NOT_FOUND"] = "object-not-found";
+    StorageErrorCode["BUCKET_NOT_FOUND"] = "bucket-not-found";
+    StorageErrorCode["PROJECT_NOT_FOUND"] = "project-not-found";
+    StorageErrorCode["QUOTA_EXCEEDED"] = "quota-exceeded";
+    StorageErrorCode["UNAUTHENTICATED"] = "unauthenticated";
+    StorageErrorCode["UNAUTHORIZED"] = "unauthorized";
+    StorageErrorCode["UNAUTHORIZED_APP"] = "unauthorized-app";
+    StorageErrorCode["RETRY_LIMIT_EXCEEDED"] = "retry-limit-exceeded";
+    StorageErrorCode["INVALID_CHECKSUM"] = "invalid-checksum";
+    StorageErrorCode["CANCELED"] = "canceled";
+    // JS specific
+    StorageErrorCode["INVALID_EVENT_NAME"] = "invalid-event-name";
+    StorageErrorCode["INVALID_URL"] = "invalid-url";
+    StorageErrorCode["INVALID_DEFAULT_BUCKET"] = "invalid-default-bucket";
+    StorageErrorCode["NO_DEFAULT_BUCKET"] = "no-default-bucket";
+    StorageErrorCode["CANNOT_SLICE_BLOB"] = "cannot-slice-blob";
+    StorageErrorCode["SERVER_FILE_WRONG_SIZE"] = "server-file-wrong-size";
+    StorageErrorCode["NO_DOWNLOAD_URL"] = "no-download-url";
+    StorageErrorCode["INVALID_ARGUMENT"] = "invalid-argument";
+    StorageErrorCode["INVALID_ARGUMENT_COUNT"] = "invalid-argument-count";
+    StorageErrorCode["APP_DELETED"] = "app-deleted";
+    StorageErrorCode["INVALID_ROOT_OPERATION"] = "invalid-root-operation";
+    StorageErrorCode["INVALID_FORMAT"] = "invalid-format";
+    StorageErrorCode["INTERNAL_ERROR"] = "internal-error";
+    StorageErrorCode["UNSUPPORTED_ENVIRONMENT"] = "unsupported-environment";
+})(exports.StorageErrorCode || (exports.StorageErrorCode = {}));
+function prependCode(code) {
+    return 'storage/' + code;
+}
+function unknown() {
+    const message = 'An unknown error occurred, please check the error payload for ' +
+        'server response.';
+    return new StorageError(exports.StorageErrorCode.UNKNOWN, message);
+}
+function objectNotFound(path) {
+    return new StorageError(exports.StorageErrorCode.OBJECT_NOT_FOUND, "Object '" + path + "' does not exist.");
+}
+function quotaExceeded(bucket) {
+    return new StorageError(exports.StorageErrorCode.QUOTA_EXCEEDED, "Quota for bucket '" +
+        bucket +
+        "' exceeded, please view quota on " +
+        'https://firebase.google.com/pricing/.');
+}
+function unauthenticated() {
+    const message = 'User is not authenticated, please authenticate using Firebase ' +
+        'Authentication and try again.';
+    return new StorageError(exports.StorageErrorCode.UNAUTHENTICATED, message);
+}
+function unauthorizedApp() {
+    return new StorageError(exports.StorageErrorCode.UNAUTHORIZED_APP, 'This app does not have permission to access Firebase Storage on this project.');
+}
+function unauthorized(path) {
+    return new StorageError(exports.StorageErrorCode.UNAUTHORIZED, "User does not have permission to access '" + path + "'.");
+}
+function retryLimitExceeded() {
+    return new StorageError(exports.StorageErrorCode.RETRY_LIMIT_EXCEEDED, 'Max retry time for operation exceeded, please try again.');
+}
+function canceled() {
+    return new StorageError(exports.StorageErrorCode.CANCELED, 'User canceled the upload/download.');
+}
+function invalidUrl(url) {
+    return new StorageError(exports.StorageErrorCode.INVALID_URL, "Invalid URL '" + url + "'.");
+}
+function invalidDefaultBucket(bucket) {
+    return new StorageError(exports.StorageErrorCode.INVALID_DEFAULT_BUCKET, "Invalid default bucket '" + bucket + "'.");
+}
+function noDefaultBucket() {
+    return new StorageError(exports.StorageErrorCode.NO_DEFAULT_BUCKET, 'No default bucket ' +
+        "found. Did you set the '" +
+        CONFIG_STORAGE_BUCKET_KEY +
+        "' property when initializing the app?");
+}
+function cannotSliceBlob() {
+    return new StorageError(exports.StorageErrorCode.CANNOT_SLICE_BLOB, 'Cannot slice blob for upload. Please retry the upload.');
+}
+function serverFileWrongSize() {
+    return new StorageError(exports.StorageErrorCode.SERVER_FILE_WRONG_SIZE, 'Server recorded incorrect upload file size, please retry the upload.');
+}
+function noDownloadURL() {
+    return new StorageError(exports.StorageErrorCode.NO_DOWNLOAD_URL, 'The given file does not have any download URLs.');
+}
+function missingPolyFill(polyFill) {
+    return new StorageError(exports.StorageErrorCode.UNSUPPORTED_ENVIRONMENT, `${polyFill} is missing. Make sure to install the required polyfills. See https://firebase.google.com/docs/web/environments-js-sdk#polyfills for more information.`);
+}
+/**
+ * @internal
+ */
+function invalidArgument(message) {
+    return new StorageError(exports.StorageErrorCode.INVALID_ARGUMENT, message);
+}
+function appDeleted() {
+    return new StorageError(exports.StorageErrorCode.APP_DELETED, 'The Firebase app was deleted.');
+}
+/**
+ * @param name - The name of the operation that was invalid.
+ *
+ * @internal
+ */
+function invalidRootOperation(name) {
+    return new StorageError(exports.StorageErrorCode.INVALID_ROOT_OPERATION, "The operation '" +
+        name +
+        "' cannot be performed on a root reference, create a non-root " +
+        "reference using child, such as .child('file.png').");
+}
+/**
+ * @param format - The format that was not valid.
+ * @param message - A message describing the format violation.
+ */
+function invalidFormat(format, message) {
+    return new StorageError(exports.StorageErrorCode.INVALID_FORMAT, "String does not match format '" + format + "': " + message);
+}
+/**
+ * @param message - A message describing the internal error.
+ */
+function internalError(message) {
+    throw new StorageError(exports.StorageErrorCode.INTERNAL_ERROR, 'Internal error: ' + message);
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Firebase Storage location data.
+ *
+ * @internal
+ */
+class Location {
+    constructor(bucket, path) {
+        this.bucket = bucket;
+        this.path_ = path;
+    }
+    get path() {
+        return this.path_;
+    }
+    get isRoot() {
+        return this.path.length === 0;
+    }
+    fullServerUrl() {
+        const encode = encodeURIComponent;
+        return '/b/' + encode(this.bucket) + '/o/' + encode(this.path);
+    }
+    bucketOnlyServerUrl() {
+        const encode = encodeURIComponent;
+        return '/b/' + encode(this.bucket) + '/o';
+    }
+    static makeFromBucketSpec(bucketString, host) {
+        let bucketLocation;
+        try {
+            bucketLocation = Location.makeFromUrl(bucketString, host);
+        }
+        catch (e) {
+            // Not valid URL, use as-is. This lets you put bare bucket names in
+            // config.
+            return new Location(bucketString, '');
+        }
+        if (bucketLocation.path === '') {
+            return bucketLocation;
+        }
+        else {
+            throw invalidDefaultBucket(bucketString);
+        }
+    }
+    static makeFromUrl(url, host) {
+        let location = null;
+        const bucketDomain = '([A-Za-z0-9.\\-_]+)';
+        function gsModify(loc) {
+            if (loc.path.charAt(loc.path.length - 1) === '/') {
+                loc.path_ = loc.path_.slice(0, -1);
+            }
+        }
+        const gsPath = '(/(.*))?$';
+        const gsRegex = new RegExp('^gs://' + bucketDomain + gsPath, 'i');
+        const gsIndices = { bucket: 1, path: 3 };
+        function httpModify(loc) {
+            loc.path_ = decodeURIComponent(loc.path);
+        }
+        const version = 'v[A-Za-z0-9_]+';
+        const firebaseStorageHost = host.replace(/[.]/g, '\\.');
+        const firebaseStoragePath = '(/([^?#]*).*)?$';
+        const firebaseStorageRegExp = new RegExp(`^https?://${firebaseStorageHost}/${version}/b/${bucketDomain}/o${firebaseStoragePath}`, 'i');
+        const firebaseStorageIndices = { bucket: 1, path: 3 };
+        const cloudStorageHost = host === DEFAULT_HOST
+            ? '(?:storage.googleapis.com|storage.cloud.google.com)'
+            : host;
+        const cloudStoragePath = '([^?#]*)';
+        const cloudStorageRegExp = new RegExp(`^https?://${cloudStorageHost}/${bucketDomain}/${cloudStoragePath}`, 'i');
+        const cloudStorageIndices = { bucket: 1, path: 2 };
+        const groups = [
+            { regex: gsRegex, indices: gsIndices, postModify: gsModify },
+            {
+                regex: firebaseStorageRegExp,
+                indices: firebaseStorageIndices,
+                postModify: httpModify
+            },
+            {
+                regex: cloudStorageRegExp,
+                indices: cloudStorageIndices,
+                postModify: httpModify
+            }
+        ];
+        for (let i = 0; i < groups.length; i++) {
+            const group = groups[i];
+            const captures = group.regex.exec(url);
+            if (captures) {
+                const bucketValue = captures[group.indices.bucket];
+                let pathValue = captures[group.indices.path];
+                if (!pathValue) {
+                    pathValue = '';
+                }
+                location = new Location(bucketValue, pathValue);
+                group.postModify(location);
+                break;
+            }
+        }
+        if (location == null) {
+            throw invalidUrl(url);
+        }
+        return location;
+    }
+}
+
+/**
+ * A request whose promise always fails.
+ */
+class FailRequest {
+    constructor(error) {
+        this.promise_ = Promise.reject(error);
+    }
+    /** @inheritDoc */
+    getPromise() {
+        return this.promise_;
+    }
+    /** @inheritDoc */
+    cancel(_appDelete = false) { }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Accepts a callback for an action to perform (`doRequest`),
+ * and then a callback for when the backoff has completed (`backoffCompleteCb`).
+ * The callback sent to start requires an argument to call (`onRequestComplete`).
+ * When `start` calls `doRequest`, it passes a callback for when the request has
+ * completed, `onRequestComplete`. Based on this, the backoff continues, with
+ * another call to `doRequest` and the above loop continues until the timeout
+ * is hit, or a successful response occurs.
+ * @description
+ * @param doRequest Callback to perform request
+ * @param backoffCompleteCb Callback to call when backoff has been completed
+ */
+function start(doRequest, 
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+backoffCompleteCb, timeout) {
+    // TODO(andysoto): make this code cleaner (probably refactor into an actual
+    // type instead of a bunch of functions with state shared in the closure)
+    let waitSeconds = 1;
+    // Would type this as "number" but that doesn't work for Node so ¯\_(ツ)_/¯
+    // TODO: find a way to exclude Node type definition for storage because storage only works in browser
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    let retryTimeoutId = null;
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    let globalTimeoutId = null;
+    let hitTimeout = false;
+    let cancelState = 0;
+    function canceled() {
+        return cancelState === 2;
+    }
+    let triggeredCallback = false;
+    function triggerCallback(...args) {
+        if (!triggeredCallback) {
+            triggeredCallback = true;
+            backoffCompleteCb.apply(null, args);
+        }
+    }
+    function callWithDelay(millis) {
+        retryTimeoutId = setTimeout(() => {
+            retryTimeoutId = null;
+            doRequest(responseHandler, canceled());
+        }, millis);
+    }
+    function clearGlobalTimeout() {
+        if (globalTimeoutId) {
+            clearTimeout(globalTimeoutId);
+        }
+    }
+    function responseHandler(success, ...args) {
+        if (triggeredCallback) {
+            clearGlobalTimeout();
+            return;
+        }
+        if (success) {
+            clearGlobalTimeout();
+            triggerCallback.call(null, success, ...args);
+            return;
+        }
+        const mustStop = canceled() || hitTimeout;
+        if (mustStop) {
+            clearGlobalTimeout();
+            triggerCallback.call(null, success, ...args);
+            return;
+        }
+        if (waitSeconds < 64) {
+            /* TODO(andysoto): don't back off so quickly if we know we're offline. */
+            waitSeconds *= 2;
+        }
+        let waitMillis;
+        if (cancelState === 1) {
+            cancelState = 2;
+            waitMillis = 0;
+        }
+        else {
+            waitMillis = (waitSeconds + Math.random()) * 1000;
+        }
+        callWithDelay(waitMillis);
+    }
+    let stopped = false;
+    function stop(wasTimeout) {
+        if (stopped) {
+            return;
+        }
+        stopped = true;
+        clearGlobalTimeout();
+        if (triggeredCallback) {
+            return;
+        }
+        if (retryTimeoutId !== null) {
+            if (!wasTimeout) {
+                cancelState = 2;
+            }
+            clearTimeout(retryTimeoutId);
+            callWithDelay(0);
+        }
+        else {
+            if (!wasTimeout) {
+                cancelState = 1;
+            }
+        }
+    }
+    callWithDelay(0);
+    globalTimeoutId = setTimeout(() => {
+        hitTimeout = true;
+        stop(true);
+    }, timeout);
+    return stop;
+}
+/**
+ * Stops the retry loop from repeating.
+ * If the function is currently "in between" retries, it is invoked immediately
+ * with the second parameter as "true". Otherwise, it will be invoked once more
+ * after the current invocation finishes iff the current invocation would have
+ * triggered another retry.
+ */
+function stop(id) {
+    id(false);
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+function isJustDef(p) {
+    return p !== void 0;
+}
+// eslint-disable-next-line @typescript-eslint/ban-types
+function isFunction(p) {
+    return typeof p === 'function';
+}
+function isNonArrayObject(p) {
+    return typeof p === 'object' && !Array.isArray(p);
+}
+function isString(p) {
+    return typeof p === 'string' || p instanceof String;
+}
+function isNativeBlob(p) {
+    return isNativeBlobDefined() && p instanceof Blob;
+}
+function isNativeBlobDefined() {
+    return typeof Blob !== 'undefined';
+}
+function validateNumber(argument, minValue, maxValue, value) {
+    if (value < minValue) {
+        throw invalidArgument(`Invalid value for '${argument}'. Expected ${minValue} or greater.`);
+    }
+    if (value > maxValue) {
+        throw invalidArgument(`Invalid value for '${argument}'. Expected ${maxValue} or less.`);
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+function makeUrl(urlPart, host, protocol) {
+    let origin = host;
+    if (protocol == null) {
+        origin = `https://${host}`;
+    }
+    return `${protocol}://${origin}/v0${urlPart}`;
+}
+function makeQueryString(params) {
+    const encode = encodeURIComponent;
+    let queryPart = '?';
+    for (const key in params) {
+        if (params.hasOwnProperty(key)) {
+            const nextPart = encode(key) + '=' + encode(params[key]);
+            queryPart = queryPart + nextPart + '&';
+        }
+    }
+    // Chop off the extra '&' or '?' on the end
+    queryPart = queryPart.slice(0, -1);
+    return queryPart;
+}
+
+/**
+ * Error codes for requests made by the XhrIo wrapper.
+ */
+var ErrorCode;
+(function (ErrorCode) {
+    ErrorCode[ErrorCode["NO_ERROR"] = 0] = "NO_ERROR";
+    ErrorCode[ErrorCode["NETWORK_ERROR"] = 1] = "NETWORK_ERROR";
+    ErrorCode[ErrorCode["ABORT"] = 2] = "ABORT";
+})(ErrorCode || (ErrorCode = {}));
+
+/**
+ * @license
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Checks the status code to see if the action should be retried.
+ *
+ * @param status Current HTTP status code returned by server.
+ * @param additionalRetryCodes additional retry codes to check against
+ */
+function isRetryStatusCode(status, additionalRetryCodes) {
+    // The codes for which to retry came from this page:
+    // https://cloud.google.com/storage/docs/exponential-backoff
+    const isFiveHundredCode = status >= 500 && status < 600;
+    const extraRetryCodes = [
+        // Request Timeout: web server didn't receive full request in time.
+        408,
+        // Too Many Requests: you're getting rate-limited, basically.
+        429
+    ];
+    const isExtraRetryCode = extraRetryCodes.indexOf(status) !== -1;
+    const isAdditionalRetryCode = additionalRetryCodes.indexOf(status) !== -1;
+    return isFiveHundredCode || isExtraRetryCode || isAdditionalRetryCode;
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Handles network logic for all Storage Requests, including error reporting and
+ * retries with backoff.
+ *
+ * @param I - the type of the backend's network response.
+ * @param - O the output type used by the rest of the SDK. The conversion
+ * happens in the specified `callback_`.
+ */
+class NetworkRequest {
+    constructor(url_, method_, headers_, body_, successCodes_, additionalRetryCodes_, callback_, errorCallback_, timeout_, progressCallback_, connectionFactory_, retry = true, isUsingEmulator = false) {
+        this.url_ = url_;
+        this.method_ = method_;
+        this.headers_ = headers_;
+        this.body_ = body_;
+        this.successCodes_ = successCodes_;
+        this.additionalRetryCodes_ = additionalRetryCodes_;
+        this.callback_ = callback_;
+        this.errorCallback_ = errorCallback_;
+        this.timeout_ = timeout_;
+        this.progressCallback_ = progressCallback_;
+        this.connectionFactory_ = connectionFactory_;
+        this.retry = retry;
+        this.isUsingEmulator = isUsingEmulator;
+        this.pendingConnection_ = null;
+        this.backoffId_ = null;
+        this.canceled_ = false;
+        this.appDelete_ = false;
+        this.promise_ = new Promise((resolve, reject) => {
+            this.resolve_ = resolve;
+            this.reject_ = reject;
+            this.start_();
+        });
+    }
+    /**
+     * Actually starts the retry loop.
+     */
+    start_() {
+        const doTheRequest = (backoffCallback, canceled) => {
+            if (canceled) {
+                backoffCallback(false, new RequestEndStatus(false, null, true));
+                return;
+            }
+            const connection = this.connectionFactory_();
+            this.pendingConnection_ = connection;
+            const progressListener = progressEvent => {
+                const loaded = progressEvent.loaded;
+                const total = progressEvent.lengthComputable ? progressEvent.total : -1;
+                if (this.progressCallback_ !== null) {
+                    this.progressCallback_(loaded, total);
+                }
+            };
+            if (this.progressCallback_ !== null) {
+                connection.addUploadProgressListener(progressListener);
+            }
+            // connection.send() never rejects, so we don't need to have a error handler or use catch on the returned promise.
+            // eslint-disable-next-line @typescript-eslint/no-floating-promises
+            connection
+                .send(this.url_, this.method_, this.isUsingEmulator, this.body_, this.headers_)
+                .then(() => {
+                if (this.progressCallback_ !== null) {
+                    connection.removeUploadProgressListener(progressListener);
+                }
+                this.pendingConnection_ = null;
+                const hitServer = connection.getErrorCode() === ErrorCode.NO_ERROR;
+                const status = connection.getStatus();
+                if (!hitServer ||
+                    (isRetryStatusCode(status, this.additionalRetryCodes_) &&
+                        this.retry)) {
+                    const wasCanceled = connection.getErrorCode() === ErrorCode.ABORT;
+                    backoffCallback(false, new RequestEndStatus(false, null, wasCanceled));
+                    return;
+                }
+                const successCode = this.successCodes_.indexOf(status) !== -1;
+                backoffCallback(true, new RequestEndStatus(successCode, connection));
+            });
+        };
+        /**
+         * @param requestWentThrough - True if the request eventually went
+         *     through, false if it hit the retry limit or was canceled.
+         */
+        const backoffDone = (requestWentThrough, status) => {
+            const resolve = this.resolve_;
+            const reject = this.reject_;
+            const connection = status.connection;
+            if (status.wasSuccessCode) {
+                try {
+                    const result = this.callback_(connection, connection.getResponse());
+                    if (isJustDef(result)) {
+                        resolve(result);
+                    }
+                    else {
+                        resolve();
+                    }
+                }
+                catch (e) {
+                    reject(e);
+                }
+            }
+            else {
+                if (connection !== null) {
+                    const err = unknown();
+                    err.serverResponse = connection.getErrorText();
+                    if (this.errorCallback_) {
+                        reject(this.errorCallback_(connection, err));
+                    }
+                    else {
+                        reject(err);
+                    }
+                }
+                else {
+                    if (status.canceled) {
+                        const err = this.appDelete_ ? appDeleted() : canceled();
+                        reject(err);
+                    }
+                    else {
+                        const err = retryLimitExceeded();
+                        reject(err);
+                    }
+                }
+            }
+        };
+        if (this.canceled_) {
+            backoffDone(false, new RequestEndStatus(false, null, true));
+        }
+        else {
+            this.backoffId_ = start(doTheRequest, backoffDone, this.timeout_);
+        }
+    }
+    /** @inheritDoc */
+    getPromise() {
+        return this.promise_;
+    }
+    /** @inheritDoc */
+    cancel(appDelete) {
+        this.canceled_ = true;
+        this.appDelete_ = appDelete || false;
+        if (this.backoffId_ !== null) {
+            stop(this.backoffId_);
+        }
+        if (this.pendingConnection_ !== null) {
+            this.pendingConnection_.abort();
+        }
+    }
+}
+/**
+ * A collection of information about the result of a network request.
+ * @param opt_canceled - Defaults to false.
+ */
+class RequestEndStatus {
+    constructor(wasSuccessCode, connection, canceled) {
+        this.wasSuccessCode = wasSuccessCode;
+        this.connection = connection;
+        this.canceled = !!canceled;
+    }
+}
+function addAuthHeader_(headers, authToken) {
+    if (authToken !== null && authToken.length > 0) {
+        headers['Authorization'] = 'Firebase ' + authToken;
+    }
+}
+function addVersionHeader_(headers, firebaseVersion) {
+    headers['X-Firebase-Storage-Version'] =
+        'webjs/' + (firebaseVersion ?? 'AppManager');
+}
+function addGmpidHeader_(headers, appId) {
+    if (appId) {
+        headers['X-Firebase-GMPID'] = appId;
+    }
+}
+function addAppCheckHeader_(headers, appCheckToken) {
+    if (appCheckToken !== null) {
+        headers['X-Firebase-AppCheck'] = appCheckToken;
+    }
+}
+function makeRequest(requestInfo, appId, authToken, appCheckToken, requestFactory, firebaseVersion, retry = true, isUsingEmulator = false) {
+    const queryPart = makeQueryString(requestInfo.urlParams);
+    const url = requestInfo.url + queryPart;
+    const headers = Object.assign({}, requestInfo.headers);
+    addGmpidHeader_(headers, appId);
+    addAuthHeader_(headers, authToken);
+    addVersionHeader_(headers, firebaseVersion);
+    addAppCheckHeader_(headers, appCheckToken);
+    return new NetworkRequest(url, requestInfo.method, headers, requestInfo.body, requestInfo.successCodes, requestInfo.additionalRetryCodes, requestInfo.handler, requestInfo.errorHandler, requestInfo.timeout, requestInfo.progressCallback, requestFactory, retry, isUsingEmulator);
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+function getBlobBuilder() {
+    if (typeof BlobBuilder !== 'undefined') {
+        return BlobBuilder;
+    }
+    else if (typeof WebKitBlobBuilder !== 'undefined') {
+        return WebKitBlobBuilder;
+    }
+    else {
+        return undefined;
+    }
+}
+/**
+ * Concatenates one or more values together and converts them to a Blob.
+ *
+ * @param args The values that will make up the resulting blob.
+ * @return The blob.
+ */
+function getBlob$1(...args) {
+    const BlobBuilder = getBlobBuilder();
+    if (BlobBuilder !== undefined) {
+        const bb = new BlobBuilder();
+        for (let i = 0; i < args.length; i++) {
+            bb.append(args[i]);
+        }
+        return bb.getBlob();
+    }
+    else {
+        if (isNativeBlobDefined()) {
+            return new Blob(args);
+        }
+        else {
+            throw new StorageError(exports.StorageErrorCode.UNSUPPORTED_ENVIRONMENT, "This browser doesn't seem to support creating Blobs");
+        }
+    }
+}
+/**
+ * Slices the blob. The returned blob contains data from the start byte
+ * (inclusive) till the end byte (exclusive). Negative indices cannot be used.
+ *
+ * @param blob The blob to be sliced.
+ * @param start Index of the starting byte.
+ * @param end Index of the ending byte.
+ * @return The blob slice or null if not supported.
+ */
+function sliceBlob(blob, start, end) {
+    if (blob.webkitSlice) {
+        return blob.webkitSlice(start, end);
+    }
+    else if (blob.mozSlice) {
+        return blob.mozSlice(start, end);
+    }
+    else if (blob.slice) {
+        return blob.slice(start, end);
+    }
+    return null;
+}
+
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/** Converts a Base64 encoded string to a binary string. */
+function decodeBase64(encoded) {
+    if (typeof atob === 'undefined') {
+        throw missingPolyFill('base-64');
+    }
+    return atob(encoded);
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * An enumeration of the possible string formats for upload.
+ * @public
+ */
+const StringFormat = {
+    /**
+     * Indicates the string should be interpreted "raw", that is, as normal text.
+     * The string will be interpreted as UTF-16, then uploaded as a UTF-8 byte
+     * sequence.
+     * Example: The string 'Hello! \\ud83d\\ude0a' becomes the byte sequence
+     * 48 65 6c 6c 6f 21 20 f0 9f 98 8a
+     */
+    RAW: 'raw',
+    /**
+     * Indicates the string should be interpreted as base64-encoded data.
+     * Padding characters (trailing '='s) are optional.
+     * Example: The string 'rWmO++E6t7/rlw==' becomes the byte sequence
+     * ad 69 8e fb e1 3a b7 bf eb 97
+     */
+    BASE64: 'base64',
+    /**
+     * Indicates the string should be interpreted as base64url-encoded data.
+     * Padding characters (trailing '='s) are optional.
+     * Example: The string 'rWmO--E6t7_rlw==' becomes the byte sequence
+     * ad 69 8e fb e1 3a b7 bf eb 97
+     */
+    BASE64URL: 'base64url',
+    /**
+     * Indicates the string is a data URL, such as one obtained from
+     * canvas.toDataURL().
+     * Example: the string 'data:application/octet-stream;base64,aaaa'
+     * becomes the byte sequence
+     * 69 a6 9a
+     * (the content-type "application/octet-stream" is also applied, but can
+     * be overridden in the metadata object).
+     */
+    DATA_URL: 'data_url'
+};
+class StringData {
+    constructor(data, contentType) {
+        this.data = data;
+        this.contentType = contentType || null;
+    }
+}
+/**
+ * @internal
+ */
+function dataFromString(format, stringData) {
+    switch (format) {
+        case StringFormat.RAW:
+            return new StringData(utf8Bytes_(stringData));
+        case StringFormat.BASE64:
+        case StringFormat.BASE64URL:
+            return new StringData(base64Bytes_(format, stringData));
+        case StringFormat.DATA_URL:
+            return new StringData(dataURLBytes_(stringData), dataURLContentType_(stringData));
+        // do nothing
+    }
+    // assert(false);
+    throw unknown();
+}
+function utf8Bytes_(value) {
+    const b = [];
+    for (let i = 0; i < value.length; i++) {
+        let c = value.charCodeAt(i);
+        if (c <= 127) {
+            b.push(c);
+        }
+        else {
+            if (c <= 2047) {
+                b.push(192 | (c >> 6), 128 | (c & 63));
+            }
+            else {
+                if ((c & 64512) === 55296) {
+                    // The start of a surrogate pair.
+                    const valid = i < value.length - 1 && (value.charCodeAt(i + 1) & 64512) === 56320;
+                    if (!valid) {
+                        // The second surrogate wasn't there.
+                        b.push(239, 191, 189);
+                    }
+                    else {
+                        const hi = c;
+                        const lo = value.charCodeAt(++i);
+                        c = 65536 | ((hi & 1023) << 10) | (lo & 1023);
+                        b.push(240 | (c >> 18), 128 | ((c >> 12) & 63), 128 | ((c >> 6) & 63), 128 | (c & 63));
+                    }
+                }
+                else {
+                    if ((c & 64512) === 56320) {
+                        // Invalid low surrogate.
+                        b.push(239, 191, 189);
+                    }
+                    else {
+                        b.push(224 | (c >> 12), 128 | ((c >> 6) & 63), 128 | (c & 63));
+                    }
+                }
+            }
+        }
+    }
+    return new Uint8Array(b);
+}
+function percentEncodedBytes_(value) {
+    let decoded;
+    try {
+        decoded = decodeURIComponent(value);
+    }
+    catch (e) {
+        throw invalidFormat(StringFormat.DATA_URL, 'Malformed data URL.');
+    }
+    return utf8Bytes_(decoded);
+}
+function base64Bytes_(format, value) {
+    switch (format) {
+        case StringFormat.BASE64: {
+            const hasMinus = value.indexOf('-') !== -1;
+            const hasUnder = value.indexOf('_') !== -1;
+            if (hasMinus || hasUnder) {
+                const invalidChar = hasMinus ? '-' : '_';
+                throw invalidFormat(format, "Invalid character '" +
+                    invalidChar +
+                    "' found: is it base64url encoded?");
+            }
+            break;
+        }
+        case StringFormat.BASE64URL: {
+            const hasPlus = value.indexOf('+') !== -1;
+            const hasSlash = value.indexOf('/') !== -1;
+            if (hasPlus || hasSlash) {
+                const invalidChar = hasPlus ? '+' : '/';
+                throw invalidFormat(format, "Invalid character '" + invalidChar + "' found: is it base64 encoded?");
+            }
+            value = value.replace(/-/g, '+').replace(/_/g, '/');
+            break;
+        }
+        // do nothing
+    }
+    let bytes;
+    try {
+        bytes = decodeBase64(value);
+    }
+    catch (e) {
+        if (e.message.includes('polyfill')) {
+            throw e;
+        }
+        throw invalidFormat(format, 'Invalid character found');
+    }
+    const array = new Uint8Array(bytes.length);
+    for (let i = 0; i < bytes.length; i++) {
+        array[i] = bytes.charCodeAt(i);
+    }
+    return array;
+}
+class DataURLParts {
+    constructor(dataURL) {
+        this.base64 = false;
+        this.contentType = null;
+        const matches = dataURL.match(/^data:([^,]+)?,/);
+        if (matches === null) {
+            throw invalidFormat(StringFormat.DATA_URL, "Must be formatted 'data:[<mediatype>][;base64],<data>");
+        }
+        const middle = matches[1] || null;
+        if (middle != null) {
+            this.base64 = endsWith(middle, ';base64');
+            this.contentType = this.base64
+                ? middle.substring(0, middle.length - ';base64'.length)
+                : middle;
+        }
+        this.rest = dataURL.substring(dataURL.indexOf(',') + 1);
+    }
+}
+function dataURLBytes_(dataUrl) {
+    const parts = new DataURLParts(dataUrl);
+    if (parts.base64) {
+        return base64Bytes_(StringFormat.BASE64, parts.rest);
+    }
+    else {
+        return percentEncodedBytes_(parts.rest);
+    }
+}
+function dataURLContentType_(dataUrl) {
+    const parts = new DataURLParts(dataUrl);
+    return parts.contentType;
+}
+function endsWith(s, end) {
+    const longEnough = s.length >= end.length;
+    if (!longEnough) {
+        return false;
+    }
+    return s.substring(s.length - end.length) === end;
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @param opt_elideCopy - If true, doesn't copy mutable input data
+ *     (e.g. Uint8Arrays). Pass true only if you know the objects will not be
+ *     modified after this blob's construction.
+ *
+ * @internal
+ */
+class FbsBlob {
+    constructor(data, elideCopy) {
+        let size = 0;
+        let blobType = '';
+        if (isNativeBlob(data)) {
+            this.data_ = data;
+            size = data.size;
+            blobType = data.type;
+        }
+        else if (data instanceof ArrayBuffer) {
+            if (elideCopy) {
+                this.data_ = new Uint8Array(data);
+            }
+            else {
+                this.data_ = new Uint8Array(data.byteLength);
+                this.data_.set(new Uint8Array(data));
+            }
+            size = this.data_.length;
+        }
+        else if (data instanceof Uint8Array) {
+            if (elideCopy) {
+                this.data_ = data;
+            }
+            else {
+                this.data_ = new Uint8Array(data.length);
+                this.data_.set(data);
+            }
+            size = data.length;
+        }
+        this.size_ = size;
+        this.type_ = blobType;
+    }
+    size() {
+        return this.size_;
+    }
+    type() {
+        return this.type_;
+    }
+    slice(startByte, endByte) {
+        if (isNativeBlob(this.data_)) {
+            const realBlob = this.data_;
+            const sliced = sliceBlob(realBlob, startByte, endByte);
+            if (sliced === null) {
+                return null;
+            }
+            return new FbsBlob(sliced);
+        }
+        else {
+            const slice = new Uint8Array(this.data_.buffer, startByte, endByte - startByte);
+            return new FbsBlob(slice, true);
+        }
+    }
+    static getBlob(...args) {
+        if (isNativeBlobDefined()) {
+            const blobby = args.map((val) => {
+                if (val instanceof FbsBlob) {
+                    return val.data_;
+                }
+                else {
+                    return val;
+                }
+            });
+            return new FbsBlob(getBlob$1.apply(null, blobby));
+        }
+        else {
+            const uint8Arrays = args.map((val) => {
+                if (isString(val)) {
+                    return dataFromString(StringFormat.RAW, val).data;
+                }
+                else {
+                    // Blobs don't exist, so this has to be a Uint8Array.
+                    return val.data_;
+                }
+            });
+            let finalLength = 0;
+            uint8Arrays.forEach((array) => {
+                finalLength += array.byteLength;
+            });
+            const merged = new Uint8Array(finalLength);
+            let index = 0;
+            uint8Arrays.forEach((array) => {
+                for (let i = 0; i < array.length; i++) {
+                    merged[index++] = array[i];
+                }
+            });
+            return new FbsBlob(merged, true);
+        }
+    }
+    uploadData() {
+        return this.data_;
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Returns the Object resulting from parsing the given JSON, or null if the
+ * given string does not represent a JSON object.
+ */
+function jsonObjectOrNull(s) {
+    let obj;
+    try {
+        obj = JSON.parse(s);
+    }
+    catch (e) {
+        return null;
+    }
+    if (isNonArrayObject(obj)) {
+        return obj;
+    }
+    else {
+        return null;
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Contains helper methods for manipulating paths.
+ */
+/**
+ * @return Null if the path is already at the root.
+ */
+function parent(path) {
+    if (path.length === 0) {
+        return null;
+    }
+    const index = path.lastIndexOf('/');
+    if (index === -1) {
+        return '';
+    }
+    const newPath = path.slice(0, index);
+    return newPath;
+}
+function child(path, childPath) {
+    const canonicalChildPath = childPath
+        .split('/')
+        .filter(component => component.length > 0)
+        .join('/');
+    if (path.length === 0) {
+        return canonicalChildPath;
+    }
+    else {
+        return path + '/' + canonicalChildPath;
+    }
+}
+/**
+ * Returns the last component of a path.
+ * '/foo/bar' -> 'bar'
+ * '/foo/bar/baz/' -> 'baz/'
+ * '/a' -> 'a'
+ */
+function lastComponent(path) {
+    const index = path.lastIndexOf('/', path.length - 2);
+    if (index === -1) {
+        return path;
+    }
+    else {
+        return path.slice(index + 1);
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+function noXform_(metadata, value) {
+    return value;
+}
+class Mapping {
+    constructor(server, local, writable, xform) {
+        this.server = server;
+        this.local = local || server;
+        this.writable = !!writable;
+        this.xform = xform || noXform_;
+    }
+}
+let mappings_ = null;
+function xformPath(fullPath) {
+    if (!isString(fullPath) || fullPath.length < 2) {
+        return fullPath;
+    }
+    else {
+        return lastComponent(fullPath);
+    }
+}
+function getMappings() {
+    if (mappings_) {
+        return mappings_;
+    }
+    const mappings = [];
+    mappings.push(new Mapping('bucket'));
+    mappings.push(new Mapping('generation'));
+    mappings.push(new Mapping('metageneration'));
+    mappings.push(new Mapping('name', 'fullPath', true));
+    function mappingsXformPath(_metadata, fullPath) {
+        return xformPath(fullPath);
+    }
+    const nameMapping = new Mapping('name');
+    nameMapping.xform = mappingsXformPath;
+    mappings.push(nameMapping);
+    /**
+     * Coerces the second param to a number, if it is defined.
+     */
+    function xformSize(_metadata, size) {
+        if (size !== undefined) {
+            return Number(size);
+        }
+        else {
+            return size;
+        }
+    }
+    const sizeMapping = new Mapping('size');
+    sizeMapping.xform = xformSize;
+    mappings.push(sizeMapping);
+    mappings.push(new Mapping('timeCreated'));
+    mappings.push(new Mapping('updated'));
+    mappings.push(new Mapping('md5Hash', null, true));
+    mappings.push(new Mapping('cacheControl', null, true));
+    mappings.push(new Mapping('contentDisposition', null, true));
+    mappings.push(new Mapping('contentEncoding', null, true));
+    mappings.push(new Mapping('contentLanguage', null, true));
+    mappings.push(new Mapping('contentType', null, true));
+    mappings.push(new Mapping('metadata', 'customMetadata', true));
+    mappings_ = mappings;
+    return mappings_;
+}
+function addRef(metadata, service) {
+    function generateRef() {
+        const bucket = metadata['bucket'];
+        const path = metadata['fullPath'];
+        const loc = new Location(bucket, path);
+        return service._makeStorageReference(loc);
+    }
+    Object.defineProperty(metadata, 'ref', { get: generateRef });
+}
+function fromResource(service, resource, mappings) {
+    const metadata = {};
+    metadata['type'] = 'file';
+    const len = mappings.length;
+    for (let i = 0; i < len; i++) {
+        const mapping = mappings[i];
+        metadata[mapping.local] = mapping.xform(metadata, resource[mapping.server]);
+    }
+    addRef(metadata, service);
+    return metadata;
+}
+function fromResourceString(service, resourceString, mappings) {
+    const obj = jsonObjectOrNull(resourceString);
+    if (obj === null) {
+        return null;
+    }
+    const resource = obj;
+    return fromResource(service, resource, mappings);
+}
+function downloadUrlFromResourceString(metadata, resourceString, host, protocol) {
+    const obj = jsonObjectOrNull(resourceString);
+    if (obj === null) {
+        return null;
+    }
+    if (!isString(obj['downloadTokens'])) {
+        // This can happen if objects are uploaded through GCS and retrieved
+        // through list, so we don't want to throw an Error.
+        return null;
+    }
+    const tokens = obj['downloadTokens'];
+    if (tokens.length === 0) {
+        return null;
+    }
+    const encode = encodeURIComponent;
+    const tokensList = tokens.split(',');
+    const urls = tokensList.map((token) => {
+        const bucket = metadata['bucket'];
+        const path = metadata['fullPath'];
+        const urlPart = '/b/' + encode(bucket) + '/o/' + encode(path);
+        const base = makeUrl(urlPart, host, protocol);
+        const queryString = makeQueryString({
+            alt: 'media',
+            token
+        });
+        return base + queryString;
+    });
+    return urls[0];
+}
+function toResourceString(metadata, mappings) {
+    const resource = {};
+    const len = mappings.length;
+    for (let i = 0; i < len; i++) {
+        const mapping = mappings[i];
+        if (mapping.writable) {
+            resource[mapping.server] = metadata[mapping.local];
+        }
+    }
+    return JSON.stringify(resource);
+}
+
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+const PREFIXES_KEY = 'prefixes';
+const ITEMS_KEY = 'items';
+function fromBackendResponse(service, bucket, resource) {
+    const listResult = {
+        prefixes: [],
+        items: [],
+        nextPageToken: resource['nextPageToken']
+    };
+    if (resource[PREFIXES_KEY]) {
+        for (const path of resource[PREFIXES_KEY]) {
+            const pathWithoutTrailingSlash = path.replace(/\/$/, '');
+            const reference = service._makeStorageReference(new Location(bucket, pathWithoutTrailingSlash));
+            listResult.prefixes.push(reference);
+        }
+    }
+    if (resource[ITEMS_KEY]) {
+        for (const item of resource[ITEMS_KEY]) {
+            const reference = service._makeStorageReference(new Location(bucket, item['name']));
+            listResult.items.push(reference);
+        }
+    }
+    return listResult;
+}
+function fromResponseString(service, bucket, resourceString) {
+    const obj = jsonObjectOrNull(resourceString);
+    if (obj === null) {
+        return null;
+    }
+    const resource = obj;
+    return fromBackendResponse(service, bucket, resource);
+}
+
+/**
+ * Contains a fully specified request.
+ *
+ * @param I - the type of the backend's network response.
+ * @param O - the output response type used by the rest of the SDK.
+ */
+class RequestInfo {
+    constructor(url, method, 
+    /**
+     * Returns the value with which to resolve the request's promise. Only called
+     * if the request is successful. Throw from this function to reject the
+     * returned Request's promise with the thrown error.
+     * Note: The XhrIo passed to this function may be reused after this callback
+     * returns. Do not keep a reference to it in any way.
+     */
+    handler, timeout) {
+        this.url = url;
+        this.method = method;
+        this.handler = handler;
+        this.timeout = timeout;
+        this.urlParams = {};
+        this.headers = {};
+        this.body = null;
+        this.errorHandler = null;
+        /**
+         * Called with the current number of bytes uploaded and total size (-1 if not
+         * computable) of the request body (i.e. used to report upload progress).
+         */
+        this.progressCallback = null;
+        this.successCodes = [200];
+        this.additionalRetryCodes = [];
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Throws the UNKNOWN StorageError if cndn is false.
+ */
+function handlerCheck(cndn) {
+    if (!cndn) {
+        throw unknown();
+    }
+}
+function metadataHandler(service, mappings) {
+    function handler(xhr, text) {
+        const metadata = fromResourceString(service, text, mappings);
+        handlerCheck(metadata !== null);
+        return metadata;
+    }
+    return handler;
+}
+function listHandler(service, bucket) {
+    function handler(xhr, text) {
+        const listResult = fromResponseString(service, bucket, text);
+        handlerCheck(listResult !== null);
+        return listResult;
+    }
+    return handler;
+}
+function downloadUrlHandler(service, mappings) {
+    function handler(xhr, text) {
+        const metadata = fromResourceString(service, text, mappings);
+        handlerCheck(metadata !== null);
+        return downloadUrlFromResourceString(metadata, text, service.host, service._protocol);
+    }
+    return handler;
+}
+function sharedErrorHandler(location) {
+    function errorHandler(xhr, err) {
+        let newErr;
+        if (xhr.getStatus() === 401) {
+            if (
+            // This exact message string is the only consistent part of the
+            // server's error response that identifies it as an App Check error.
+            xhr.getErrorText().includes('Firebase App Check token is invalid')) {
+                newErr = unauthorizedApp();
+            }
+            else {
+                newErr = unauthenticated();
+            }
+        }
+        else {
+            if (xhr.getStatus() === 402) {
+                newErr = quotaExceeded(location.bucket);
+            }
+            else {
+                if (xhr.getStatus() === 403) {
+                    newErr = unauthorized(location.path);
+                }
+                else {
+                    newErr = err;
+                }
+            }
+        }
+        newErr.status = xhr.getStatus();
+        newErr.serverResponse = err.serverResponse;
+        return newErr;
+    }
+    return errorHandler;
+}
+function objectErrorHandler(location) {
+    const shared = sharedErrorHandler(location);
+    function errorHandler(xhr, err) {
+        let newErr = shared(xhr, err);
+        if (xhr.getStatus() === 404) {
+            newErr = objectNotFound(location.path);
+        }
+        newErr.serverResponse = err.serverResponse;
+        return newErr;
+    }
+    return errorHandler;
+}
+function getMetadata$2(service, location, mappings) {
+    const urlPart = location.fullServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'GET';
+    const timeout = service.maxOperationRetryTime;
+    const requestInfo = new RequestInfo(url, method, metadataHandler(service, mappings), timeout);
+    requestInfo.errorHandler = objectErrorHandler(location);
+    return requestInfo;
+}
+function list$2(service, location, delimiter, pageToken, maxResults) {
+    const urlParams = {};
+    if (location.isRoot) {
+        urlParams['prefix'] = '';
+    }
+    else {
+        urlParams['prefix'] = location.path + '/';
+    }
+    if (delimiter && delimiter.length > 0) {
+        urlParams['delimiter'] = delimiter;
+    }
+    if (pageToken) {
+        urlParams['pageToken'] = pageToken;
+    }
+    if (maxResults) {
+        urlParams['maxResults'] = maxResults;
+    }
+    const urlPart = location.bucketOnlyServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'GET';
+    const timeout = service.maxOperationRetryTime;
+    const requestInfo = new RequestInfo(url, method, listHandler(service, location.bucket), timeout);
+    requestInfo.urlParams = urlParams;
+    requestInfo.errorHandler = sharedErrorHandler(location);
+    return requestInfo;
+}
+function getBytes$1(service, location, maxDownloadSizeBytes) {
+    const urlPart = location.fullServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol) + '?alt=media';
+    const method = 'GET';
+    const timeout = service.maxOperationRetryTime;
+    const requestInfo = new RequestInfo(url, method, (_, data) => data, timeout);
+    requestInfo.errorHandler = objectErrorHandler(location);
+    if (maxDownloadSizeBytes !== undefined) {
+        requestInfo.headers['Range'] = `bytes=0-${maxDownloadSizeBytes}`;
+        requestInfo.successCodes = [200 /* OK */, 206 /* Partial Content */];
+    }
+    return requestInfo;
+}
+function getDownloadUrl(service, location, mappings) {
+    const urlPart = location.fullServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'GET';
+    const timeout = service.maxOperationRetryTime;
+    const requestInfo = new RequestInfo(url, method, downloadUrlHandler(service, mappings), timeout);
+    requestInfo.errorHandler = objectErrorHandler(location);
+    return requestInfo;
+}
+function updateMetadata$2(service, location, metadata, mappings) {
+    const urlPart = location.fullServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'PATCH';
+    const body = toResourceString(metadata, mappings);
+    const headers = { 'Content-Type': 'application/json; charset=utf-8' };
+    const timeout = service.maxOperationRetryTime;
+    const requestInfo = new RequestInfo(url, method, metadataHandler(service, mappings), timeout);
+    requestInfo.headers = headers;
+    requestInfo.body = body;
+    requestInfo.errorHandler = objectErrorHandler(location);
+    return requestInfo;
+}
+function deleteObject$2(service, location) {
+    const urlPart = location.fullServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'DELETE';
+    const timeout = service.maxOperationRetryTime;
+    function handler(_xhr, _text) { }
+    const requestInfo = new RequestInfo(url, method, handler, timeout);
+    requestInfo.successCodes = [200, 204];
+    requestInfo.errorHandler = objectErrorHandler(location);
+    return requestInfo;
+}
+function determineContentType_(metadata, blob) {
+    return ((metadata && metadata['contentType']) ||
+        (blob && blob.type()) ||
+        'application/octet-stream');
+}
+function metadataForUpload_(location, blob, metadata) {
+    const metadataClone = Object.assign({}, metadata);
+    metadataClone['fullPath'] = location.path;
+    metadataClone['size'] = blob.size();
+    if (!metadataClone['contentType']) {
+        metadataClone['contentType'] = determineContentType_(null, blob);
+    }
+    return metadataClone;
+}
+/**
+ * Prepare RequestInfo for uploads as Content-Type: multipart.
+ */
+function multipartUpload(service, location, mappings, blob, metadata) {
+    const urlPart = location.bucketOnlyServerUrl();
+    const headers = {
+        'X-Goog-Upload-Protocol': 'multipart'
+    };
+    function genBoundary() {
+        let str = '';
+        for (let i = 0; i < 2; i++) {
+            str = str + Math.random().toString().slice(2);
+        }
+        return str;
+    }
+    const boundary = genBoundary();
+    headers['Content-Type'] = 'multipart/related; boundary=' + boundary;
+    const metadata_ = metadataForUpload_(location, blob, metadata);
+    const metadataString = toResourceString(metadata_, mappings);
+    const preBlobPart = '--' +
+        boundary +
+        '\r\n' +
+        'Content-Type: application/json; charset=utf-8\r\n\r\n' +
+        metadataString +
+        '\r\n--' +
+        boundary +
+        '\r\n' +
+        'Content-Type: ' +
+        metadata_['contentType'] +
+        '\r\n\r\n';
+    const postBlobPart = '\r\n--' + boundary + '--';
+    const body = FbsBlob.getBlob(preBlobPart, blob, postBlobPart);
+    if (body === null) {
+        throw cannotSliceBlob();
+    }
+    const urlParams = { name: metadata_['fullPath'] };
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'POST';
+    const timeout = service.maxUploadRetryTime;
+    const requestInfo = new RequestInfo(url, method, metadataHandler(service, mappings), timeout);
+    requestInfo.urlParams = urlParams;
+    requestInfo.headers = headers;
+    requestInfo.body = body.uploadData();
+    requestInfo.errorHandler = sharedErrorHandler(location);
+    return requestInfo;
+}
+/**
+ * @param current The number of bytes that have been uploaded so far.
+ * @param total The total number of bytes in the upload.
+ * @param opt_finalized True if the server has finished the upload.
+ * @param opt_metadata The upload metadata, should
+ *     only be passed if opt_finalized is true.
+ */
+class ResumableUploadStatus {
+    constructor(current, total, finalized, metadata) {
+        this.current = current;
+        this.total = total;
+        this.finalized = !!finalized;
+        this.metadata = metadata || null;
+    }
+}
+function checkResumeHeader_(xhr, allowed) {
+    let status = null;
+    try {
+        status = xhr.getResponseHeader('X-Goog-Upload-Status');
+    }
+    catch (e) {
+        handlerCheck(false);
+    }
+    const allowedStatus = allowed || ['active'];
+    handlerCheck(!!status && allowedStatus.indexOf(status) !== -1);
+    return status;
+}
+function createResumableUpload(service, location, mappings, blob, metadata) {
+    const urlPart = location.bucketOnlyServerUrl();
+    const metadataForUpload = metadataForUpload_(location, blob, metadata);
+    const urlParams = { name: metadataForUpload['fullPath'] };
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'POST';
+    const headers = {
+        'X-Goog-Upload-Protocol': 'resumable',
+        'X-Goog-Upload-Command': 'start',
+        'X-Goog-Upload-Header-Content-Length': `${blob.size()}`,
+        'X-Goog-Upload-Header-Content-Type': metadataForUpload['contentType'],
+        'Content-Type': 'application/json; charset=utf-8'
+    };
+    const body = toResourceString(metadataForUpload, mappings);
+    const timeout = service.maxUploadRetryTime;
+    function handler(xhr) {
+        checkResumeHeader_(xhr);
+        let url;
+        try {
+            url = xhr.getResponseHeader('X-Goog-Upload-URL');
+        }
+        catch (e) {
+            handlerCheck(false);
+        }
+        handlerCheck(isString(url));
+        return url;
+    }
+    const requestInfo = new RequestInfo(url, method, handler, timeout);
+    requestInfo.urlParams = urlParams;
+    requestInfo.headers = headers;
+    requestInfo.body = body;
+    requestInfo.errorHandler = sharedErrorHandler(location);
+    return requestInfo;
+}
+/**
+ * @param url From a call to fbs.requests.createResumableUpload.
+ */
+function getResumableUploadStatus(service, location, url, blob) {
+    const headers = { 'X-Goog-Upload-Command': 'query' };
+    function handler(xhr) {
+        const status = checkResumeHeader_(xhr, ['active', 'final']);
+        let sizeString = null;
+        try {
+            sizeString = xhr.getResponseHeader('X-Goog-Upload-Size-Received');
+        }
+        catch (e) {
+            handlerCheck(false);
+        }
+        if (!sizeString) {
+            // null or empty string
+            handlerCheck(false);
+        }
+        const size = Number(sizeString);
+        handlerCheck(!isNaN(size));
+        return new ResumableUploadStatus(size, blob.size(), status === 'final');
+    }
+    const method = 'POST';
+    const timeout = service.maxUploadRetryTime;
+    const requestInfo = new RequestInfo(url, method, handler, timeout);
+    requestInfo.headers = headers;
+    requestInfo.errorHandler = sharedErrorHandler(location);
+    return requestInfo;
+}
+/**
+ * Any uploads via the resumable upload API must transfer a number of bytes
+ * that is a multiple of this number.
+ */
+const RESUMABLE_UPLOAD_CHUNK_SIZE = 256 * 1024;
+/**
+ * @param url From a call to fbs.requests.createResumableUpload.
+ * @param chunkSize Number of bytes to upload.
+ * @param status The previous status.
+ *     If not passed or null, we start from the beginning.
+ * @throws fbs.Error If the upload is already complete, the passed in status
+ *     has a final size inconsistent with the blob, or the blob cannot be sliced
+ *     for upload.
+ */
+function continueResumableUpload(location, service, url, blob, chunkSize, mappings, status, progressCallback) {
+    // TODO(andysoto): standardize on internal asserts
+    // assert(!(opt_status && opt_status.finalized));
+    const status_ = new ResumableUploadStatus(0, 0);
+    if (status) {
+        status_.current = status.current;
+        status_.total = status.total;
+    }
+    else {
+        status_.current = 0;
+        status_.total = blob.size();
+    }
+    if (blob.size() !== status_.total) {
+        throw serverFileWrongSize();
+    }
+    const bytesLeft = status_.total - status_.current;
+    let bytesToUpload = bytesLeft;
+    if (chunkSize > 0) {
+        bytesToUpload = Math.min(bytesToUpload, chunkSize);
+    }
+    const startByte = status_.current;
+    const endByte = startByte + bytesToUpload;
+    let uploadCommand = '';
+    if (bytesToUpload === 0) {
+        uploadCommand = 'finalize';
+    }
+    else if (bytesLeft === bytesToUpload) {
+        uploadCommand = 'upload, finalize';
+    }
+    else {
+        uploadCommand = 'upload';
+    }
+    const headers = {
+        'X-Goog-Upload-Command': uploadCommand,
+        'X-Goog-Upload-Offset': `${status_.current}`
+    };
+    const body = blob.slice(startByte, endByte);
+    if (body === null) {
+        throw cannotSliceBlob();
+    }
+    function handler(xhr, text) {
+        // TODO(andysoto): Verify the MD5 of each uploaded range:
+        // the 'x-range-md5' header comes back with status code 308 responses.
+        // We'll only be able to bail out though, because you can't re-upload a
+        // range that you previously uploaded.
+        const uploadStatus = checkResumeHeader_(xhr, ['active', 'final']);
+        const newCurrent = status_.current + bytesToUpload;
+        const size = blob.size();
+        let metadata;
+        if (uploadStatus === 'final') {
+            metadata = metadataHandler(service, mappings)(xhr, text);
+        }
+        else {
+            metadata = null;
+        }
+        return new ResumableUploadStatus(newCurrent, size, uploadStatus === 'final', metadata);
+    }
+    const method = 'POST';
+    const timeout = service.maxUploadRetryTime;
+    const requestInfo = new RequestInfo(url, method, handler, timeout);
+    requestInfo.headers = headers;
+    requestInfo.body = body.uploadData();
+    requestInfo.progressCallback = progressCallback || null;
+    requestInfo.errorHandler = sharedErrorHandler(location);
+    return requestInfo;
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * An event that is triggered on a task.
+ * @internal
+ */
+const TaskEvent = {
+    /**
+     * For this event,
+     * <ul>
+     *   <li>The `next` function is triggered on progress updates and when the
+     *       task is paused/resumed with an `UploadTaskSnapshot` as the first
+     *       argument.</li>
+     *   <li>The `error` function is triggered if the upload is canceled or fails
+     *       for another reason.</li>
+     *   <li>The `complete` function is triggered if the upload completes
+     *       successfully.</li>
+     * </ul>
+     */
+    STATE_CHANGED: 'state_changed'
+};
+// type keys = keyof TaskState
+/**
+ * Represents the current state of a running upload.
+ * @internal
+ */
+const TaskState = {
+    /** The task is currently transferring data. */
+    RUNNING: 'running',
+    /** The task was paused by the user. */
+    PAUSED: 'paused',
+    /** The task completed successfully. */
+    SUCCESS: 'success',
+    /** The task was canceled. */
+    CANCELED: 'canceled',
+    /** The task failed with an error. */
+    ERROR: 'error'
+};
+function taskStateFromInternalTaskState(state) {
+    switch (state) {
+        case "running" /* InternalTaskState.RUNNING */:
+        case "pausing" /* InternalTaskState.PAUSING */:
+        case "canceling" /* InternalTaskState.CANCELING */:
+            return TaskState.RUNNING;
+        case "paused" /* InternalTaskState.PAUSED */:
+            return TaskState.PAUSED;
+        case "success" /* InternalTaskState.SUCCESS */:
+            return TaskState.SUCCESS;
+        case "canceled" /* InternalTaskState.CANCELED */:
+            return TaskState.CANCELED;
+        case "error" /* InternalTaskState.ERROR */:
+            return TaskState.ERROR;
+        default:
+            // TODO(andysoto): assert(false);
+            return TaskState.ERROR;
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+class Observer {
+    constructor(nextOrObserver, error, complete) {
+        const asFunctions = isFunction(nextOrObserver) || error != null || complete != null;
+        if (asFunctions) {
+            this.next = nextOrObserver;
+            this.error = error ?? undefined;
+            this.complete = complete ?? undefined;
+        }
+        else {
+            const observer = nextOrObserver;
+            this.next = observer.next;
+            this.error = observer.error;
+            this.complete = observer.complete;
+        }
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Returns a function that invokes f with its arguments asynchronously as a
+ * microtask, i.e. as soon as possible after the current script returns back
+ * into browser code.
+ */
+// eslint-disable-next-line @typescript-eslint/ban-types
+function async(f) {
+    return (...argsToForward) => {
+        // eslint-disable-next-line @typescript-eslint/no-floating-promises
+        Promise.resolve().then(() => f(...argsToForward));
+    };
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/** An override for the text-based Connection. Used in tests. */
+let textFactoryOverride = null;
+/**
+ * Network layer for browsers. We use this instead of goog.net.XhrIo because
+ * goog.net.XhrIo is hyuuuuge and doesn't work in React Native on Android.
+ */
+class XhrConnection {
+    constructor() {
+        this.sent_ = false;
+        this.xhr_ = new XMLHttpRequest();
+        this.initXhr();
+        this.errorCode_ = ErrorCode.NO_ERROR;
+        this.sendPromise_ = new Promise(resolve => {
+            this.xhr_.addEventListener('abort', () => {
+                this.errorCode_ = ErrorCode.ABORT;
+                resolve();
+            });
+            this.xhr_.addEventListener('error', () => {
+                this.errorCode_ = ErrorCode.NETWORK_ERROR;
+                resolve();
+            });
+            this.xhr_.addEventListener('load', () => {
+                resolve();
+            });
+        });
+    }
+    send(url, method, isUsingEmulator, body, headers) {
+        if (this.sent_) {
+            throw internalError('cannot .send() more than once');
+        }
+        if (util.isCloudWorkstation(url) && isUsingEmulator) {
+            this.xhr_.withCredentials = true;
+        }
+        this.sent_ = true;
+        this.xhr_.open(method, url, true);
+        if (headers !== undefined) {
+            for (const key in headers) {
+                if (headers.hasOwnProperty(key)) {
+                    this.xhr_.setRequestHeader(key, headers[key].toString());
+                }
+            }
+        }
+        if (body !== undefined) {
+            this.xhr_.send(body);
+        }
+        else {
+            this.xhr_.send();
+        }
+        return this.sendPromise_;
+    }
+    getErrorCode() {
+        if (!this.sent_) {
+            throw internalError('cannot .getErrorCode() before sending');
+        }
+        return this.errorCode_;
+    }
+    getStatus() {
+        if (!this.sent_) {
+            throw internalError('cannot .getStatus() before sending');
+        }
+        try {
+            return this.xhr_.status;
+        }
+        catch (e) {
+            return -1;
+        }
+    }
+    getResponse() {
+        if (!this.sent_) {
+            throw internalError('cannot .getResponse() before sending');
+        }
+        return this.xhr_.response;
+    }
+    getErrorText() {
+        if (!this.sent_) {
+            throw internalError('cannot .getErrorText() before sending');
+        }
+        return this.xhr_.statusText;
+    }
+    /** Aborts the request. */
+    abort() {
+        this.xhr_.abort();
+    }
+    getResponseHeader(header) {
+        return this.xhr_.getResponseHeader(header);
+    }
+    addUploadProgressListener(listener) {
+        if (this.xhr_.upload != null) {
+            this.xhr_.upload.addEventListener('progress', listener);
+        }
+    }
+    removeUploadProgressListener(listener) {
+        if (this.xhr_.upload != null) {
+            this.xhr_.upload.removeEventListener('progress', listener);
+        }
+    }
+}
+class XhrTextConnection extends XhrConnection {
+    initXhr() {
+        this.xhr_.responseType = 'text';
+    }
+}
+function newTextConnection() {
+    return textFactoryOverride ? textFactoryOverride() : new XhrTextConnection();
+}
+class XhrBytesConnection extends XhrConnection {
+    initXhr() {
+        this.xhr_.responseType = 'arraybuffer';
+    }
+}
+function newBytesConnection() {
+    return new XhrBytesConnection();
+}
+class XhrBlobConnection extends XhrConnection {
+    initXhr() {
+        this.xhr_.responseType = 'blob';
+    }
+}
+function newBlobConnection() {
+    return new XhrBlobConnection();
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Represents a blob being uploaded. Can be used to pause/resume/cancel the
+ * upload and manage callbacks for various events.
+ * @internal
+ */
+class UploadTask {
+    isExponentialBackoffExpired() {
+        return this.sleepTime > this.maxSleepTime;
+    }
+    /**
+     * @param ref - The firebaseStorage.Reference object this task came
+     *     from, untyped to avoid cyclic dependencies.
+     * @param blob - The blob to upload.
+     */
+    constructor(ref, blob, metadata = null) {
+        /**
+         * Number of bytes transferred so far.
+         */
+        this._transferred = 0;
+        this._needToFetchStatus = false;
+        this._needToFetchMetadata = false;
+        this._observers = [];
+        this._error = undefined;
+        this._uploadUrl = undefined;
+        this._request = undefined;
+        this._chunkMultiplier = 1;
+        this._resolve = undefined;
+        this._reject = undefined;
+        this._ref = ref;
+        this._blob = blob;
+        this._metadata = metadata;
+        this._mappings = getMappings();
+        this._resumable = this._shouldDoResumable(this._blob);
+        this._state = "running" /* InternalTaskState.RUNNING */;
+        this._errorHandler = error => {
+            this._request = undefined;
+            this._chunkMultiplier = 1;
+            if (error._codeEquals(exports.StorageErrorCode.CANCELED)) {
+                this._needToFetchStatus = true;
+                this.completeTransitions_();
+            }
+            else {
+                const backoffExpired = this.isExponentialBackoffExpired();
+                if (isRetryStatusCode(error.status, [])) {
+                    if (backoffExpired) {
+                        error = retryLimitExceeded();
+                    }
+                    else {
+                        this.sleepTime = Math.max(this.sleepTime * 2, DEFAULT_MIN_SLEEP_TIME_MILLIS);
+                        this._needToFetchStatus = true;
+                        this.completeTransitions_();
+                        return;
+                    }
+                }
+                this._error = error;
+                this._transition("error" /* InternalTaskState.ERROR */);
+            }
+        };
+        this._metadataErrorHandler = error => {
+            this._request = undefined;
+            if (error._codeEquals(exports.StorageErrorCode.CANCELED)) {
+                this.completeTransitions_();
+            }
+            else {
+                this._error = error;
+                this._transition("error" /* InternalTaskState.ERROR */);
+            }
+        };
+        this.sleepTime = 0;
+        this.maxSleepTime = this._ref.storage.maxUploadRetryTime;
+        this._promise = new Promise((resolve, reject) => {
+            this._resolve = resolve;
+            this._reject = reject;
+            this._start();
+        });
+        // Prevent uncaught rejections on the internal promise from bubbling out
+        // to the top level with a dummy handler.
+        this._promise.then(null, () => { });
+    }
+    _makeProgressCallback() {
+        const sizeBefore = this._transferred;
+        return loaded => this._updateProgress(sizeBefore + loaded);
+    }
+    _shouldDoResumable(blob) {
+        return blob.size() > 256 * 1024;
+    }
+    _start() {
+        if (this._state !== "running" /* InternalTaskState.RUNNING */) {
+            // This can happen if someone pauses us in a resume callback, for example.
+            return;
+        }
+        if (this._request !== undefined) {
+            return;
+        }
+        if (this._resumable) {
+            if (this._uploadUrl === undefined) {
+                this._createResumable();
+            }
+            else {
+                if (this._needToFetchStatus) {
+                    this._fetchStatus();
+                }
+                else {
+                    if (this._needToFetchMetadata) {
+                        // Happens if we miss the metadata on upload completion.
+                        this._fetchMetadata();
+                    }
+                    else {
+                        this.pendingTimeout = setTimeout(() => {
+                            this.pendingTimeout = undefined;
+                            this._continueUpload();
+                        }, this.sleepTime);
+                    }
+                }
+            }
+        }
+        else {
+            this._oneShotUpload();
+        }
+    }
+    _resolveToken(callback) {
+        // eslint-disable-next-line @typescript-eslint/no-floating-promises
+        Promise.all([
+            this._ref.storage._getAuthToken(),
+            this._ref.storage._getAppCheckToken()
+        ]).then(([authToken, appCheckToken]) => {
+            switch (this._state) {
+                case "running" /* InternalTaskState.RUNNING */:
+                    callback(authToken, appCheckToken);
+                    break;
+                case "canceling" /* InternalTaskState.CANCELING */:
+                    this._transition("canceled" /* InternalTaskState.CANCELED */);
+                    break;
+                case "pausing" /* InternalTaskState.PAUSING */:
+                    this._transition("paused" /* InternalTaskState.PAUSED */);
+                    break;
+            }
+        });
+    }
+    // TODO(andysoto): assert false
+    _createResumable() {
+        this._resolveToken((authToken, appCheckToken) => {
+            const requestInfo = createResumableUpload(this._ref.storage, this._ref._location, this._mappings, this._blob, this._metadata);
+            const createRequest = this._ref.storage._makeRequest(requestInfo, newTextConnection, authToken, appCheckToken);
+            this._request = createRequest;
+            createRequest.getPromise().then((url) => {
+                this._request = undefined;
+                this._uploadUrl = url;
+                this._needToFetchStatus = false;
+                this.completeTransitions_();
+            }, this._errorHandler);
+        });
+    }
+    _fetchStatus() {
+        // TODO(andysoto): assert(this.uploadUrl_ !== null);
+        const url = this._uploadUrl;
+        this._resolveToken((authToken, appCheckToken) => {
+            const requestInfo = getResumableUploadStatus(this._ref.storage, this._ref._location, url, this._blob);
+            const statusRequest = this._ref.storage._makeRequest(requestInfo, newTextConnection, authToken, appCheckToken);
+            this._request = statusRequest;
+            statusRequest.getPromise().then(status => {
+                status = status;
+                this._request = undefined;
+                this._updateProgress(status.current);
+                this._needToFetchStatus = false;
+                if (status.finalized) {
+                    this._needToFetchMetadata = true;
+                }
+                this.completeTransitions_();
+            }, this._errorHandler);
+        });
+    }
+    _continueUpload() {
+        const chunkSize = RESUMABLE_UPLOAD_CHUNK_SIZE * this._chunkMultiplier;
+        const status = new ResumableUploadStatus(this._transferred, this._blob.size());
+        // TODO(andysoto): assert(this.uploadUrl_ !== null);
+        const url = this._uploadUrl;
+        this._resolveToken((authToken, appCheckToken) => {
+            let requestInfo;
+            try {
+                requestInfo = continueResumableUpload(this._ref._location, this._ref.storage, url, this._blob, chunkSize, this._mappings, status, this._makeProgressCallback());
+            }
+            catch (e) {
+                this._error = e;
+                this._transition("error" /* InternalTaskState.ERROR */);
+                return;
+            }
+            const uploadRequest = this._ref.storage._makeRequest(requestInfo, newTextConnection, authToken, appCheckToken, 
+            /*retry=*/ false // Upload requests should not be retried as each retry should be preceded by another query request. Which is handled in this file.
+            );
+            this._request = uploadRequest;
+            uploadRequest.getPromise().then((newStatus) => {
+                this._increaseMultiplier();
+                this._request = undefined;
+                this._updateProgress(newStatus.current);
+                if (newStatus.finalized) {
+                    this._metadata = newStatus.metadata;
+                    this._transition("success" /* InternalTaskState.SUCCESS */);
+                }
+                else {
+                    this.completeTransitions_();
+                }
+            }, this._errorHandler);
+        });
+    }
+    _increaseMultiplier() {
+        const currentSize = RESUMABLE_UPLOAD_CHUNK_SIZE * this._chunkMultiplier;
+        // Max chunk size is 32M.
+        if (currentSize * 2 < 32 * 1024 * 1024) {
+            this._chunkMultiplier *= 2;
+        }
+    }
+    _fetchMetadata() {
+        this._resolveToken((authToken, appCheckToken) => {
+            const requestInfo = getMetadata$2(this._ref.storage, this._ref._location, this._mappings);
+            const metadataRequest = this._ref.storage._makeRequest(requestInfo, newTextConnection, authToken, appCheckToken);
+            this._request = metadataRequest;
+            metadataRequest.getPromise().then(metadata => {
+                this._request = undefined;
+                this._metadata = metadata;
+                this._transition("success" /* InternalTaskState.SUCCESS */);
+            }, this._metadataErrorHandler);
+        });
+    }
+    _oneShotUpload() {
+        this._resolveToken((authToken, appCheckToken) => {
+            const requestInfo = multipartUpload(this._ref.storage, this._ref._location, this._mappings, this._blob, this._metadata);
+            const multipartRequest = this._ref.storage._makeRequest(requestInfo, newTextConnection, authToken, appCheckToken);
+            this._request = multipartRequest;
+            multipartRequest.getPromise().then(metadata => {
+                this._request = undefined;
+                this._metadata = metadata;
+                this._updateProgress(this._blob.size());
+                this._transition("success" /* InternalTaskState.SUCCESS */);
+            }, this._errorHandler);
+        });
+    }
+    _updateProgress(transferred) {
+        const old = this._transferred;
+        this._transferred = transferred;
+        // A progress update can make the "transferred" value smaller (e.g. a
+        // partial upload not completed by server, after which the "transferred"
+        // value may reset to the value at the beginning of the request).
+        if (this._transferred !== old) {
+            this._notifyObservers();
+        }
+    }
+    _transition(state) {
+        if (this._state === state) {
+            return;
+        }
+        switch (state) {
+            case "canceling" /* InternalTaskState.CANCELING */:
+            case "pausing" /* InternalTaskState.PAUSING */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.RUNNING ||
+                //        this.state_ === InternalTaskState.PAUSING);
+                this._state = state;
+                if (this._request !== undefined) {
+                    this._request.cancel();
+                }
+                else if (this.pendingTimeout) {
+                    clearTimeout(this.pendingTimeout);
+                    this.pendingTimeout = undefined;
+                    this.completeTransitions_();
+                }
+                break;
+            case "running" /* InternalTaskState.RUNNING */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.PAUSED ||
+                //        this.state_ === InternalTaskState.PAUSING);
+                const wasPaused = this._state === "paused" /* InternalTaskState.PAUSED */;
+                this._state = state;
+                if (wasPaused) {
+                    this._notifyObservers();
+                    this._start();
+                }
+                break;
+            case "paused" /* InternalTaskState.PAUSED */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.PAUSING);
+                this._state = state;
+                this._notifyObservers();
+                break;
+            case "canceled" /* InternalTaskState.CANCELED */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.PAUSED ||
+                //        this.state_ === InternalTaskState.CANCELING);
+                this._error = canceled();
+                this._state = state;
+                this._notifyObservers();
+                break;
+            case "error" /* InternalTaskState.ERROR */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.RUNNING ||
+                //        this.state_ === InternalTaskState.PAUSING ||
+                //        this.state_ === InternalTaskState.CANCELING);
+                this._state = state;
+                this._notifyObservers();
+                break;
+            case "success" /* InternalTaskState.SUCCESS */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.RUNNING ||
+                //        this.state_ === InternalTaskState.PAUSING ||
+                //        this.state_ === InternalTaskState.CANCELING);
+                this._state = state;
+                this._notifyObservers();
+                break;
+        }
+    }
+    completeTransitions_() {
+        switch (this._state) {
+            case "pausing" /* InternalTaskState.PAUSING */:
+                this._transition("paused" /* InternalTaskState.PAUSED */);
+                break;
+            case "canceling" /* InternalTaskState.CANCELING */:
+                this._transition("canceled" /* InternalTaskState.CANCELED */);
+                break;
+            case "running" /* InternalTaskState.RUNNING */:
+                this._start();
+                break;
+        }
+    }
+    /**
+     * A snapshot of the current task state.
+     */
+    get snapshot() {
+        const externalState = taskStateFromInternalTaskState(this._state);
+        return {
+            bytesTransferred: this._transferred,
+            totalBytes: this._blob.size(),
+            state: externalState,
+            metadata: this._metadata,
+            task: this,
+            ref: this._ref
+        };
+    }
+    /**
+     * Adds a callback for an event.
+     * @param type - The type of event to listen for.
+     * @param nextOrObserver -
+     *     The `next` function, which gets called for each item in
+     *     the event stream, or an observer object with some or all of these three
+     *     properties (`next`, `error`, `complete`).
+     * @param error - A function that gets called with a `StorageError`
+     *     if the event stream ends due to an error.
+     * @param completed - A function that gets called if the
+     *     event stream ends normally.
+     * @returns
+     *     If only the event argument is passed, returns a function you can use to
+     *     add callbacks (see the examples above). If more than just the event
+     *     argument is passed, returns a function you can call to unregister the
+     *     callbacks.
+     */
+    on(type, nextOrObserver, error, completed) {
+        // Note: `type` isn't being used. Its type is also incorrect. TaskEvent should not be a string.
+        const observer = new Observer(nextOrObserver || undefined, error || undefined, completed || undefined);
+        this._addObserver(observer);
+        return () => {
+            this._removeObserver(observer);
+        };
+    }
+    /**
+     * This object behaves like a Promise, and resolves with its snapshot data
+     * when the upload completes.
+     * @param onFulfilled - The fulfillment callback. Promise chaining works as normal.
+     * @param onRejected - The rejection callback.
+     */
+    then(onFulfilled, onRejected) {
+        // These casts are needed so that TypeScript can infer the types of the
+        // resulting Promise.
+        return this._promise.then(onFulfilled, onRejected);
+    }
+    /**
+     * Equivalent to calling `then(null, onRejected)`.
+     */
+    catch(onRejected) {
+        return this.then(null, onRejected);
+    }
+    /**
+     * Adds the given observer.
+     */
+    _addObserver(observer) {
+        this._observers.push(observer);
+        this._notifyObserver(observer);
+    }
+    /**
+     * Removes the given observer.
+     */
+    _removeObserver(observer) {
+        const i = this._observers.indexOf(observer);
+        if (i !== -1) {
+            this._observers.splice(i, 1);
+        }
+    }
+    _notifyObservers() {
+        this._finishPromise();
+        const observers = this._observers.slice();
+        observers.forEach(observer => {
+            this._notifyObserver(observer);
+        });
+    }
+    _finishPromise() {
+        if (this._resolve !== undefined) {
+            let triggered = true;
+            switch (taskStateFromInternalTaskState(this._state)) {
+                case TaskState.SUCCESS:
+                    async(this._resolve.bind(null, this.snapshot))();
+                    break;
+                case TaskState.CANCELED:
+                case TaskState.ERROR:
+                    const toCall = this._reject;
+                    async(toCall.bind(null, this._error))();
+                    break;
+                default:
+                    triggered = false;
+                    break;
+            }
+            if (triggered) {
+                this._resolve = undefined;
+                this._reject = undefined;
+            }
+        }
+    }
+    _notifyObserver(observer) {
+        const externalState = taskStateFromInternalTaskState(this._state);
+        switch (externalState) {
+            case TaskState.RUNNING:
+            case TaskState.PAUSED:
+                if (observer.next) {
+                    async(observer.next.bind(observer, this.snapshot))();
+                }
+                break;
+            case TaskState.SUCCESS:
+                if (observer.complete) {
+                    async(observer.complete.bind(observer))();
+                }
+                break;
+            case TaskState.CANCELED:
+            case TaskState.ERROR:
+                if (observer.error) {
+                    async(observer.error.bind(observer, this._error))();
+                }
+                break;
+            default:
+                // TODO(andysoto): assert(false);
+                if (observer.error) {
+                    async(observer.error.bind(observer, this._error))();
+                }
+        }
+    }
+    /**
+     * Resumes a paused task. Has no effect on a currently running or failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    resume() {
+        const valid = this._state === "paused" /* InternalTaskState.PAUSED */ ||
+            this._state === "pausing" /* InternalTaskState.PAUSING */;
+        if (valid) {
+            this._transition("running" /* InternalTaskState.RUNNING */);
+        }
+        return valid;
+    }
+    /**
+     * Pauses a currently running task. Has no effect on a paused or failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    pause() {
+        const valid = this._state === "running" /* InternalTaskState.RUNNING */;
+        if (valid) {
+            this._transition("pausing" /* InternalTaskState.PAUSING */);
+        }
+        return valid;
+    }
+    /**
+     * Cancels a currently running or paused task. Has no effect on a complete or
+     * failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    cancel() {
+        const valid = this._state === "running" /* InternalTaskState.RUNNING */ ||
+            this._state === "pausing" /* InternalTaskState.PAUSING */;
+        if (valid) {
+            this._transition("canceling" /* InternalTaskState.CANCELING */);
+        }
+        return valid;
+    }
+}
+
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Provides methods to interact with a bucket in the Firebase Storage service.
+ * @internal
+ * @param _location - An fbs.location, or the URL at
+ *     which to base this object, in one of the following forms:
+ *         gs://<bucket>/<object-path>
+ *         http[s]://firebasestorage.googleapis.com/
+ *                     <api-version>/b/<bucket>/o/<object-path>
+ *     Any query or fragment strings will be ignored in the http[s]
+ *     format. If no value is passed, the storage object will use a URL based on
+ *     the project ID of the base firebase.App instance.
+ */
+class Reference {
+    constructor(_service, location) {
+        this._service = _service;
+        if (location instanceof Location) {
+            this._location = location;
+        }
+        else {
+            this._location = Location.makeFromUrl(location, _service.host);
+        }
+    }
+    /**
+     * Returns the URL for the bucket and path this object references,
+     *     in the form gs://<bucket>/<object-path>
+     * @override
+     */
+    toString() {
+        return 'gs://' + this._location.bucket + '/' + this._location.path;
+    }
+    _newRef(service, location) {
+        return new Reference(service, location);
+    }
+    /**
+     * A reference to the root of this object's bucket.
+     */
+    get root() {
+        const location = new Location(this._location.bucket, '');
+        return this._newRef(this._service, location);
+    }
+    /**
+     * The name of the bucket containing this reference's object.
+     */
+    get bucket() {
+        return this._location.bucket;
+    }
+    /**
+     * The full path of this object.
+     */
+    get fullPath() {
+        return this._location.path;
+    }
+    /**
+     * The short name of this object, which is the last component of the full path.
+     * For example, if fullPath is 'full/path/image.png', name is 'image.png'.
+     */
+    get name() {
+        return lastComponent(this._location.path);
+    }
+    /**
+     * The `StorageService` instance this `StorageReference` is associated with.
+     */
+    get storage() {
+        return this._service;
+    }
+    /**
+     * A `StorageReference` pointing to the parent location of this `StorageReference`, or null if
+     * this reference is the root.
+     */
+    get parent() {
+        const newPath = parent(this._location.path);
+        if (newPath === null) {
+            return null;
+        }
+        const location = new Location(this._location.bucket, newPath);
+        return new Reference(this._service, location);
+    }
+    /**
+     * Utility function to throw an error in methods that do not accept a root reference.
+     */
+    _throwIfRoot(name) {
+        if (this._location.path === '') {
+            throw invalidRootOperation(name);
+        }
+    }
+}
+/**
+ * Download the bytes at the object's location.
+ * @returns A Promise containing the downloaded bytes.
+ */
+function getBytesInternal(ref, maxDownloadSizeBytes) {
+    ref._throwIfRoot('getBytes');
+    const requestInfo = getBytes$1(ref.storage, ref._location, maxDownloadSizeBytes);
+    return ref.storage
+        .makeRequestWithTokens(requestInfo, newBytesConnection)
+        .then(bytes => maxDownloadSizeBytes !== undefined
+        ? // GCS may not honor the Range header for small files
+            bytes.slice(0, maxDownloadSizeBytes)
+        : bytes);
+}
+/**
+ * Download the bytes at the object's location.
+ * @returns A Promise containing the downloaded blob.
+ */
+function getBlobInternal(ref, maxDownloadSizeBytes) {
+    ref._throwIfRoot('getBlob');
+    const requestInfo = getBytes$1(ref.storage, ref._location, maxDownloadSizeBytes);
+    return ref.storage
+        .makeRequestWithTokens(requestInfo, newBlobConnection)
+        .then(blob => maxDownloadSizeBytes !== undefined
+        ? // GCS may not honor the Range header for small files
+            blob.slice(0, maxDownloadSizeBytes)
+        : blob);
+}
+/**
+ * Uploads data to this object's location.
+ * The upload is not resumable.
+ *
+ * @param ref - StorageReference where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the newly uploaded data.
+ * @returns A Promise containing an UploadResult
+ */
+function uploadBytes$1(ref, data, metadata) {
+    ref._throwIfRoot('uploadBytes');
+    const requestInfo = multipartUpload(ref.storage, ref._location, getMappings(), new FbsBlob(data, true), metadata);
+    return ref.storage
+        .makeRequestWithTokens(requestInfo, newTextConnection)
+        .then(finalMetadata => {
+        return {
+            metadata: finalMetadata,
+            ref
+        };
+    });
+}
+/**
+ * Uploads data to this object's location.
+ * The upload can be paused and resumed, and exposes progress updates.
+ * @public
+ * @param ref - StorageReference where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the newly uploaded data.
+ * @returns An UploadTask
+ */
+function uploadBytesResumable$1(ref, data, metadata) {
+    ref._throwIfRoot('uploadBytesResumable');
+    return new UploadTask(ref, new FbsBlob(data), metadata);
+}
+/**
+ * Uploads a string to this object's location.
+ * The upload is not resumable.
+ * @public
+ * @param ref - StorageReference where string should be uploaded.
+ * @param value - The string to upload.
+ * @param format - The format of the string to upload.
+ * @param metadata - Metadata for the newly uploaded string.
+ * @returns A Promise containing an UploadResult
+ */
+function uploadString$1(ref, value, format = StringFormat.RAW, metadata) {
+    ref._throwIfRoot('uploadString');
+    const data = dataFromString(format, value);
+    const metadataClone = { ...metadata };
+    if (metadataClone['contentType'] == null && data.contentType != null) {
+        metadataClone['contentType'] = data.contentType;
+    }
+    return uploadBytes$1(ref, data.data, metadataClone);
+}
+/**
+ * List all items (files) and prefixes (folders) under this storage reference.
+ *
+ * This is a helper method for calling list() repeatedly until there are
+ * no more results. The default pagination size is 1000.
+ *
+ * Note: The results may not be consistent if objects are changed while this
+ * operation is running.
+ *
+ * Warning: listAll may potentially consume too many resources if there are
+ * too many results.
+ * @public
+ * @param ref - StorageReference to get list from.
+ *
+ * @returns A Promise that resolves with all the items and prefixes under
+ *      the current storage reference. `prefixes` contains references to
+ *      sub-directories and `items` contains references to objects in this
+ *      folder. `nextPageToken` is never returned.
+ */
+function listAll$1(ref) {
+    const accumulator = {
+        prefixes: [],
+        items: []
+    };
+    return listAllHelper(ref, accumulator).then(() => accumulator);
+}
+/**
+ * Separated from listAll because async functions can't use "arguments".
+ * @param ref
+ * @param accumulator
+ * @param pageToken
+ */
+async function listAllHelper(ref, accumulator, pageToken) {
+    const opt = {
+        // maxResults is 1000 by default.
+        pageToken
+    };
+    const nextPage = await list$1(ref, opt);
+    accumulator.prefixes.push(...nextPage.prefixes);
+    accumulator.items.push(...nextPage.items);
+    if (nextPage.nextPageToken != null) {
+        await listAllHelper(ref, accumulator, nextPage.nextPageToken);
+    }
+}
+/**
+ * List items (files) and prefixes (folders) under this storage reference.
+ *
+ * List API is only available for Firebase Rules Version 2.
+ *
+ * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'
+ * delimited folder structure.
+ * Refer to GCS's List API if you want to learn more.
+ *
+ * To adhere to Firebase Rules's Semantics, Firebase Storage does not
+ * support objects whose paths end with "/" or contain two consecutive
+ * "/"s. Firebase Storage List API will filter these unsupported objects.
+ * list() may fail if there are too many unsupported objects in the bucket.
+ * @public
+ *
+ * @param ref - StorageReference to get list from.
+ * @param options - See ListOptions for details.
+ * @returns A Promise that resolves with the items and prefixes.
+ *      `prefixes` contains references to sub-folders and `items`
+ *      contains references to objects in this folder. `nextPageToken`
+ *      can be used to get the rest of the results.
+ */
+function list$1(ref, options) {
+    if (options != null) {
+        if (typeof options.maxResults === 'number') {
+            validateNumber('options.maxResults', 
+            /* minValue= */ 1, 
+            /* maxValue= */ 1000, options.maxResults);
+        }
+    }
+    const op = options || {};
+    const requestInfo = list$2(ref.storage, ref._location, 
+    /*delimiter= */ '/', op.pageToken, op.maxResults);
+    return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);
+}
+/**
+ * A `Promise` that resolves with the metadata for this object. If this
+ * object doesn't exist or metadata cannot be retrieved, the promise is
+ * rejected.
+ * @public
+ * @param ref - StorageReference to get metadata from.
+ */
+function getMetadata$1(ref) {
+    ref._throwIfRoot('getMetadata');
+    const requestInfo = getMetadata$2(ref.storage, ref._location, getMappings());
+    return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);
+}
+/**
+ * Updates the metadata for this object.
+ * @public
+ * @param ref - StorageReference to update metadata for.
+ * @param metadata - The new metadata for the object.
+ *     Only values that have been explicitly set will be changed. Explicitly
+ *     setting a value to null will remove the metadata.
+ * @returns A `Promise` that resolves
+ *     with the new metadata for this object.
+ *     See `firebaseStorage.Reference.prototype.getMetadata`
+ */
+function updateMetadata$1(ref, metadata) {
+    ref._throwIfRoot('updateMetadata');
+    const requestInfo = updateMetadata$2(ref.storage, ref._location, metadata, getMappings());
+    return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);
+}
+/**
+ * Returns the download URL for the given Reference.
+ * @public
+ * @returns A `Promise` that resolves with the download
+ *     URL for this object.
+ */
+function getDownloadURL$1(ref) {
+    ref._throwIfRoot('getDownloadURL');
+    const requestInfo = getDownloadUrl(ref.storage, ref._location, getMappings());
+    return ref.storage
+        .makeRequestWithTokens(requestInfo, newTextConnection)
+        .then(url => {
+        if (url === null) {
+            throw noDownloadURL();
+        }
+        return url;
+    });
+}
+/**
+ * Deletes the object at this location.
+ * @public
+ * @param ref - StorageReference for object to delete.
+ * @returns A `Promise` that resolves if the deletion succeeds.
+ */
+function deleteObject$1(ref) {
+    ref._throwIfRoot('deleteObject');
+    const requestInfo = deleteObject$2(ref.storage, ref._location);
+    return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);
+}
+/**
+ * Returns reference for object obtained by appending `childPath` to `ref`.
+ *
+ * @param ref - StorageReference to get child of.
+ * @param childPath - Child path from provided ref.
+ * @returns A reference to the object obtained by
+ * appending childPath, removing any duplicate, beginning, or trailing
+ * slashes.
+ *
+ */
+function _getChild$1(ref, childPath) {
+    const newPath = child(ref._location.path, childPath);
+    const location = new Location(ref._location.bucket, newPath);
+    return new Reference(ref.storage, location);
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+function isUrl(path) {
+    return /^[A-Za-z]+:\/\//.test(path);
+}
+/**
+ * Returns a firebaseStorage.Reference for the given url.
+ */
+function refFromURL(service, url) {
+    return new Reference(service, url);
+}
+/**
+ * Returns a firebaseStorage.Reference for the given path in the default
+ * bucket.
+ */
+function refFromPath(ref, path) {
+    if (ref instanceof FirebaseStorageImpl) {
+        const service = ref;
+        if (service._bucket == null) {
+            throw noDefaultBucket();
+        }
+        const reference = new Reference(service, service._bucket);
+        if (path != null) {
+            return refFromPath(reference, path);
+        }
+        else {
+            return reference;
+        }
+    }
+    else {
+        // ref is a Reference
+        if (path !== undefined) {
+            return _getChild$1(ref, path);
+        }
+        else {
+            return ref;
+        }
+    }
+}
+function ref$1(serviceOrRef, pathOrUrl) {
+    if (pathOrUrl && isUrl(pathOrUrl)) {
+        if (serviceOrRef instanceof FirebaseStorageImpl) {
+            return refFromURL(serviceOrRef, pathOrUrl);
+        }
+        else {
+            throw invalidArgument('To use ref(service, url), the first argument must be a Storage instance.');
+        }
+    }
+    else {
+        return refFromPath(serviceOrRef, pathOrUrl);
+    }
+}
+function extractBucket(host, config) {
+    const bucketString = config?.[CONFIG_STORAGE_BUCKET_KEY];
+    if (bucketString == null) {
+        return null;
+    }
+    return Location.makeFromBucketSpec(bucketString, host);
+}
+function connectStorageEmulator$1(storage, host, port, options = {}) {
+    storage.host = `${host}:${port}`;
+    const useSsl = util.isCloudWorkstation(host);
+    // Workaround to get cookies in Firebase Studio
+    if (useSsl) {
+        void util.pingServer(`https://${storage.host}/b`);
+        util.updateEmulatorBanner('Storage', true);
+    }
+    storage._isUsingEmulator = true;
+    storage._protocol = useSsl ? 'https' : 'http';
+    const { mockUserToken } = options;
+    if (mockUserToken) {
+        storage._overrideAuthToken =
+            typeof mockUserToken === 'string'
+                ? mockUserToken
+                : util.createMockUserToken(mockUserToken, storage.app.options.projectId);
+    }
+}
+/**
+ * A service that provides Firebase Storage Reference instances.
+ * @param opt_url - gs:// url to a custom Storage Bucket
+ *
+ * @internal
+ */
+class FirebaseStorageImpl {
+    constructor(
+    /**
+     * FirebaseApp associated with this StorageService instance.
+     */
+    app, _authProvider, 
+    /**
+     * @internal
+     */
+    _appCheckProvider, 
+    /**
+     * @internal
+     */
+    _url, _firebaseVersion, _isUsingEmulator = false) {
+        this.app = app;
+        this._authProvider = _authProvider;
+        this._appCheckProvider = _appCheckProvider;
+        this._url = _url;
+        this._firebaseVersion = _firebaseVersion;
+        this._isUsingEmulator = _isUsingEmulator;
+        this._bucket = null;
+        /**
+         * This string can be in the formats:
+         * - host
+         * - host:port
+         */
+        this._host = DEFAULT_HOST;
+        this._protocol = 'https';
+        this._appId = null;
+        this._deleted = false;
+        this._maxOperationRetryTime = DEFAULT_MAX_OPERATION_RETRY_TIME;
+        this._maxUploadRetryTime = DEFAULT_MAX_UPLOAD_RETRY_TIME;
+        this._requests = new Set();
+        if (_url != null) {
+            this._bucket = Location.makeFromBucketSpec(_url, this._host);
+        }
+        else {
+            this._bucket = extractBucket(this._host, this.app.options);
+        }
+    }
+    /**
+     * The host string for this service, in the form of `host` or
+     * `host:port`.
+     */
+    get host() {
+        return this._host;
+    }
+    set host(host) {
+        this._host = host;
+        if (this._url != null) {
+            this._bucket = Location.makeFromBucketSpec(this._url, host);
+        }
+        else {
+            this._bucket = extractBucket(host, this.app.options);
+        }
+    }
+    /**
+     * The maximum time to retry uploads in milliseconds.
+     */
+    get maxUploadRetryTime() {
+        return this._maxUploadRetryTime;
+    }
+    set maxUploadRetryTime(time) {
+        validateNumber('time', 
+        /* minValue=*/ 0, 
+        /* maxValue= */ Number.POSITIVE_INFINITY, time);
+        this._maxUploadRetryTime = time;
+    }
+    /**
+     * The maximum time to retry operations other than uploads or downloads in
+     * milliseconds.
+     */
+    get maxOperationRetryTime() {
+        return this._maxOperationRetryTime;
+    }
+    set maxOperationRetryTime(time) {
+        validateNumber('time', 
+        /* minValue=*/ 0, 
+        /* maxValue= */ Number.POSITIVE_INFINITY, time);
+        this._maxOperationRetryTime = time;
+    }
+    async _getAuthToken() {
+        if (this._overrideAuthToken) {
+            return this._overrideAuthToken;
+        }
+        const auth = this._authProvider.getImmediate({ optional: true });
+        if (auth) {
+            const tokenData = await auth.getToken();
+            if (tokenData !== null) {
+                return tokenData.accessToken;
+            }
+        }
+        return null;
+    }
+    async _getAppCheckToken() {
+        if (app._isFirebaseServerApp(this.app) && this.app.settings.appCheckToken) {
+            return this.app.settings.appCheckToken;
+        }
+        const appCheck = this._appCheckProvider.getImmediate({ optional: true });
+        if (appCheck) {
+            const result = await appCheck.getToken();
+            // TODO: What do we want to do if there is an error getting the token?
+            // Context: appCheck.getToken() will never throw even if an error happened. In the error case, a dummy token will be
+            // returned along with an error field describing the error. In general, we shouldn't care about the error condition and just use
+            // the token (actual or dummy) to send requests.
+            return result.token;
+        }
+        return null;
+    }
+    /**
+     * Stop running requests and prevent more from being created.
+     */
+    _delete() {
+        if (!this._deleted) {
+            this._deleted = true;
+            this._requests.forEach(request => request.cancel());
+            this._requests.clear();
+        }
+        return Promise.resolve();
+    }
+    /**
+     * Returns a new firebaseStorage.Reference object referencing this StorageService
+     * at the given Location.
+     */
+    _makeStorageReference(loc) {
+        return new Reference(this, loc);
+    }
+    /**
+     * @param requestInfo - HTTP RequestInfo object
+     * @param authToken - Firebase auth token
+     */
+    _makeRequest(requestInfo, requestFactory, authToken, appCheckToken, retry = true) {
+        if (!this._deleted) {
+            const request = makeRequest(requestInfo, this._appId, authToken, appCheckToken, requestFactory, this._firebaseVersion, retry, this._isUsingEmulator);
+            this._requests.add(request);
+            // Request removes itself from set when complete.
+            request.getPromise().then(() => this._requests.delete(request), () => this._requests.delete(request));
+            return request;
+        }
+        else {
+            return new FailRequest(appDeleted());
+        }
+    }
+    async makeRequestWithTokens(requestInfo, requestFactory) {
+        const [authToken, appCheckToken] = await Promise.all([
+            this._getAuthToken(),
+            this._getAppCheckToken()
+        ]);
+        return this._makeRequest(requestInfo, requestFactory, authToken, appCheckToken).getPromise();
+    }
+}
+
+const name = "@firebase/storage";
+const version = "0.14.0";
+
+/**
+ * @license
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Type constant for Firebase Storage.
+ */
+const STORAGE_TYPE = 'storage';
+
+/**
+ * @license
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Downloads the data at the object's location. Returns an error if the object
+ * is not found.
+ *
+ * To use this functionality, you have to whitelist your app's origin in your
+ * Cloud Storage bucket. See also
+ * https://cloud.google.com/storage/docs/configuring-cors
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A Promise containing the object's bytes
+ */
+function getBytes(ref, maxDownloadSizeBytes) {
+    ref = util.getModularInstance(ref);
+    return getBytesInternal(ref, maxDownloadSizeBytes);
+}
+/**
+ * Uploads data to this object's location.
+ * The upload is not resumable.
+ * @public
+ * @param ref - {@link StorageReference} where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the data to upload.
+ * @returns A Promise containing an UploadResult
+ */
+function uploadBytes(ref, data, metadata) {
+    ref = util.getModularInstance(ref);
+    return uploadBytes$1(ref, data, metadata);
+}
+/**
+ * Uploads a string to this object's location.
+ * The upload is not resumable.
+ * @public
+ * @param ref - {@link StorageReference} where string should be uploaded.
+ * @param value - The string to upload.
+ * @param format - The format of the string to upload.
+ * @param metadata - Metadata for the string to upload.
+ * @returns A Promise containing an UploadResult
+ */
+function uploadString(ref, value, format, metadata) {
+    ref = util.getModularInstance(ref);
+    return uploadString$1(ref, value, format, metadata);
+}
+/**
+ * Uploads data to this object's location.
+ * The upload can be paused and resumed, and exposes progress updates.
+ * @public
+ * @param ref - {@link StorageReference} where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the data to upload.
+ * @returns An UploadTask
+ */
+function uploadBytesResumable(ref, data, metadata) {
+    ref = util.getModularInstance(ref);
+    return uploadBytesResumable$1(ref, data, metadata);
+}
+/**
+ * A `Promise` that resolves with the metadata for this object. If this
+ * object doesn't exist or metadata cannot be retrieved, the promise is
+ * rejected.
+ * @public
+ * @param ref - {@link StorageReference} to get metadata from.
+ */
+function getMetadata(ref) {
+    ref = util.getModularInstance(ref);
+    return getMetadata$1(ref);
+}
+/**
+ * Updates the metadata for this object.
+ * @public
+ * @param ref - {@link StorageReference} to update metadata for.
+ * @param metadata - The new metadata for the object.
+ *     Only values that have been explicitly set will be changed. Explicitly
+ *     setting a value to null will remove the metadata.
+ * @returns A `Promise` that resolves with the new metadata for this object.
+ */
+function updateMetadata(ref, metadata) {
+    ref = util.getModularInstance(ref);
+    return updateMetadata$1(ref, metadata);
+}
+/**
+ * List items (files) and prefixes (folders) under this storage reference.
+ *
+ * List API is only available for Firebase Rules Version 2.
+ *
+ * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'
+ * delimited folder structure.
+ * Refer to GCS's List API if you want to learn more.
+ *
+ * To adhere to Firebase Rules's Semantics, Firebase Storage does not
+ * support objects whose paths end with "/" or contain two consecutive
+ * "/"s. Firebase Storage List API will filter these unsupported objects.
+ * list() may fail if there are too many unsupported objects in the bucket.
+ * @public
+ *
+ * @param ref - {@link StorageReference} to get list from.
+ * @param options - See {@link ListOptions} for details.
+ * @returns A `Promise` that resolves with the items and prefixes.
+ *      `prefixes` contains references to sub-folders and `items`
+ *      contains references to objects in this folder. `nextPageToken`
+ *      can be used to get the rest of the results.
+ */
+function list(ref, options) {
+    ref = util.getModularInstance(ref);
+    return list$1(ref, options);
+}
+/**
+ * List all items (files) and prefixes (folders) under this storage reference.
+ *
+ * This is a helper method for calling list() repeatedly until there are
+ * no more results. The default pagination size is 1000.
+ *
+ * Note: The results may not be consistent if objects are changed while this
+ * operation is running.
+ *
+ * Warning: `listAll` may potentially consume too many resources if there are
+ * too many results.
+ * @public
+ * @param ref - {@link StorageReference} to get list from.
+ *
+ * @returns A `Promise` that resolves with all the items and prefixes under
+ *      the current storage reference. `prefixes` contains references to
+ *      sub-directories and `items` contains references to objects in this
+ *      folder. `nextPageToken` is never returned.
+ */
+function listAll(ref) {
+    ref = util.getModularInstance(ref);
+    return listAll$1(ref);
+}
+/**
+ * Returns the download URL for the given {@link StorageReference}.
+ * @public
+ * @param ref - {@link StorageReference} to get the download URL for.
+ * @returns A `Promise` that resolves with the download
+ *     URL for this object.
+ */
+function getDownloadURL(ref) {
+    ref = util.getModularInstance(ref);
+    return getDownloadURL$1(ref);
+}
+/**
+ * Deletes the object at this location.
+ * @public
+ * @param ref - {@link StorageReference} for object to delete.
+ * @returns A `Promise` that resolves if the deletion succeeds.
+ */
+function deleteObject(ref) {
+    ref = util.getModularInstance(ref);
+    return deleteObject$1(ref);
+}
+function ref(serviceOrRef, pathOrUrl) {
+    serviceOrRef = util.getModularInstance(serviceOrRef);
+    return ref$1(serviceOrRef, pathOrUrl);
+}
+/**
+ * @internal
+ */
+function _getChild(ref, childPath) {
+    return _getChild$1(ref, childPath);
+}
+/**
+ * Gets a {@link FirebaseStorage} instance for the given Firebase app.
+ * @public
+ * @param app - Firebase app to get {@link FirebaseStorage} instance for.
+ * @param bucketUrl - The gs:// url to your Firebase Storage Bucket.
+ * If not passed, uses the app's default Storage Bucket.
+ * @returns A {@link FirebaseStorage} instance.
+ */
+function getStorage(app$1 = app.getApp(), bucketUrl) {
+    app$1 = util.getModularInstance(app$1);
+    const storageProvider = app._getProvider(app$1, STORAGE_TYPE);
+    const storageInstance = storageProvider.getImmediate({
+        identifier: bucketUrl
+    });
+    const emulator = util.getDefaultEmulatorHostnameAndPort('storage');
+    if (emulator) {
+        connectStorageEmulator(storageInstance, ...emulator);
+    }
+    return storageInstance;
+}
+/**
+ * Modify this {@link FirebaseStorage} instance to communicate with the Cloud Storage emulator.
+ *
+ * @param storage - The {@link FirebaseStorage} instance
+ * @param host - The emulator host (ex: localhost)
+ * @param port - The emulator port (ex: 5001)
+ * @param options - Emulator options. `options.mockUserToken` is the mock auth
+ * token to use for unit testing Security Rules.
+ * @public
+ */
+function connectStorageEmulator(storage, host, port, options = {}) {
+    connectStorageEmulator$1(storage, host, port, options);
+}
+
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Downloads the data at the object's location. Returns an error if the object
+ * is not found.
+ *
+ * To use this functionality, you have to whitelist your app's origin in your
+ * Cloud Storage bucket. See also
+ * https://cloud.google.com/storage/docs/configuring-cors
+ *
+ * This API is not available in Node.
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A Promise that resolves with a Blob containing the object's bytes
+ */
+function getBlob(ref, maxDownloadSizeBytes) {
+    ref = util.getModularInstance(ref);
+    return getBlobInternal(ref, maxDownloadSizeBytes);
+}
+/**
+ * Downloads the data at the object's location. Raises an error event if the
+ * object is not found.
+ *
+ * This API is only available in Node.
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A stream with the object's data as bytes
+ */
+function getStream(ref, maxDownloadSizeBytes) {
+    throw new Error('getStream() is only supported by NodeJS builds');
+}
+
+/**
+ * Cloud Storage for Firebase
+ *
+ * @packageDocumentation
+ */
+function factory(container, { instanceIdentifier: url }) {
+    const app$1 = container.getProvider('app').getImmediate();
+    const authProvider = container.getProvider('auth-internal');
+    const appCheckProvider = container.getProvider('app-check-internal');
+    return new FirebaseStorageImpl(app$1, authProvider, appCheckProvider, url, app.SDK_VERSION);
+}
+function registerStorage() {
+    app._registerComponent(new component.Component(STORAGE_TYPE, factory, "PUBLIC" /* ComponentType.PUBLIC */).setMultipleInstances(true));
+    //RUNTIME_ENV will be replaced during the compilation to "node" for nodejs and an empty string for browser
+    app.registerVersion(name, version, '');
+    // BUILD_TARGET will be replaced by values like esm, cjs, etc during the compilation
+    app.registerVersion(name, version, 'cjs2020');
+}
+registerStorage();
+
+exports.StorageError = StorageError;
+exports.StringFormat = StringFormat;
+exports._FbsBlob = FbsBlob;
+exports._Location = Location;
+exports._TaskEvent = TaskEvent;
+exports._TaskState = TaskState;
+exports._UploadTask = UploadTask;
+exports._dataFromString = dataFromString;
+exports._getChild = _getChild;
+exports._invalidArgument = invalidArgument;
+exports._invalidRootOperation = invalidRootOperation;
+exports.connectStorageEmulator = connectStorageEmulator;
+exports.deleteObject = deleteObject;
+exports.getBlob = getBlob;
+exports.getBytes = getBytes;
+exports.getDownloadURL = getDownloadURL;
+exports.getMetadata = getMetadata;
+exports.getStorage = getStorage;
+exports.getStream = getStream;
+exports.list = list;
+exports.listAll = listAll;
+exports.ref = ref;
+exports.updateMetadata = updateMetadata;
+exports.uploadBytes = uploadBytes;
+exports.uploadBytesResumable = uploadBytesResumable;
+exports.uploadString = uploadString;
+//# sourceMappingURL=index.cjs.js.map
diff --git a/frontend-old/node_modules/@firebase/storage/dist/index.cjs.js.map b/frontend-old/node_modules/@firebase/storage/dist/index.cjs.js.map
new file mode 100644
index 0000000..91f1bfa
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/index.cjs.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.cjs.js","sources":["../src/implementation/constants.ts","../src/implementation/error.ts","../src/implementation/location.ts","../src/implementation/failrequest.ts","../src/implementation/backoff.ts","../src/implementation/type.ts","../src/implementation/url.ts","../src/implementation/connection.ts","../src/implementation/utils.ts","../src/implementation/request.ts","../src/implementation/fs.ts","../src/platform/browser/base64.ts","../src/implementation/string.ts","../src/implementation/blob.ts","../src/implementation/json.ts","../src/implementation/path.ts","../src/implementation/metadata.ts","../src/implementation/list.ts","../src/implementation/requestinfo.ts","../src/implementation/requests.ts","../src/implementation/taskenums.ts","../src/implementation/observer.ts","../src/implementation/async.ts","../src/platform/browser/connection.ts","../src/task.ts","../src/reference.ts","../src/service.ts","../src/constants.ts","../src/api.ts","../src/api.browser.ts","../src/index.ts"],"sourcesContent":["/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * @fileoverview Constants used in the Firebase Storage library.\n */\n\n/**\n * Domain name for firebase storage.\n */\nexport const DEFAULT_HOST = 'firebasestorage.googleapis.com';\n\n/**\n * The key in Firebase config json for the storage bucket.\n */\nexport const CONFIG_STORAGE_BUCKET_KEY = 'storageBucket';\n\n/**\n * 2 minutes\n *\n * The timeout for all operations except upload.\n */\nexport const DEFAULT_MAX_OPERATION_RETRY_TIME = 2 * 60 * 1000;\n\n/**\n * 10 minutes\n *\n * The timeout for upload.\n */\nexport const DEFAULT_MAX_UPLOAD_RETRY_TIME = 10 * 60 * 1000;\n\n/**\n * 1 second\n */\nexport const DEFAULT_MIN_SLEEP_TIME_MILLIS = 1000;\n\n/**\n * This is the value of Number.MIN_SAFE_INTEGER, which is not well supported\n * enough for us to use it directly.\n */\nexport const MIN_SAFE_INTEGER = -9007199254740991;\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { FirebaseError } from '@firebase/util';\n\nimport { CONFIG_STORAGE_BUCKET_KEY } from './constants';\n\n/**\n * An error returned by the Firebase Storage SDK.\n * @public\n */\nexport class StorageError extends FirebaseError {\n  private readonly _baseMessage: string;\n  /**\n   * Stores custom error data unique to the `StorageError`.\n   */\n  customData: { serverResponse: string | null } = { serverResponse: null };\n\n  /**\n   * @param code - A `StorageErrorCode` string to be prefixed with 'storage/' and\n   *  added to the end of the message.\n   * @param message  - Error message.\n   * @param status_ - Corresponding HTTP Status Code\n   */\n  constructor(code: StorageErrorCode, message: string, private status_ = 0) {\n    super(\n      prependCode(code),\n      `Firebase Storage: ${message} (${prependCode(code)})`\n    );\n    this._baseMessage = this.message;\n    // Without this, `instanceof StorageError`, in tests for example,\n    // returns false.\n    Object.setPrototypeOf(this, StorageError.prototype);\n  }\n\n  get status(): number {\n    return this.status_;\n  }\n\n  set status(status: number) {\n    this.status_ = status;\n  }\n\n  /**\n   * Compares a `StorageErrorCode` against this error's code, filtering out the prefix.\n   */\n  _codeEquals(code: StorageErrorCode): boolean {\n    return prependCode(code) === this.code;\n  }\n\n  /**\n   * Optional response message that was added by the server.\n   */\n  get serverResponse(): null | string {\n    return this.customData.serverResponse;\n  }\n\n  set serverResponse(serverResponse: string | null) {\n    this.customData.serverResponse = serverResponse;\n    if (this.customData.serverResponse) {\n      this.message = `${this._baseMessage}\\n${this.customData.serverResponse}`;\n    } else {\n      this.message = this._baseMessage;\n    }\n  }\n}\n\nexport const errors = {};\n\n/**\n * @public\n * Error codes that can be attached to `StorageError` objects.\n */\nexport enum StorageErrorCode {\n  // Shared between all platforms\n  UNKNOWN = 'unknown',\n  OBJECT_NOT_FOUND = 'object-not-found',\n  BUCKET_NOT_FOUND = 'bucket-not-found',\n  PROJECT_NOT_FOUND = 'project-not-found',\n  QUOTA_EXCEEDED = 'quota-exceeded',\n  UNAUTHENTICATED = 'unauthenticated',\n  UNAUTHORIZED = 'unauthorized',\n  UNAUTHORIZED_APP = 'unauthorized-app',\n  RETRY_LIMIT_EXCEEDED = 'retry-limit-exceeded',\n  INVALID_CHECKSUM = 'invalid-checksum',\n  CANCELED = 'canceled',\n  // JS specific\n  INVALID_EVENT_NAME = 'invalid-event-name',\n  INVALID_URL = 'invalid-url',\n  INVALID_DEFAULT_BUCKET = 'invalid-default-bucket',\n  NO_DEFAULT_BUCKET = 'no-default-bucket',\n  CANNOT_SLICE_BLOB = 'cannot-slice-blob',\n  SERVER_FILE_WRONG_SIZE = 'server-file-wrong-size',\n  NO_DOWNLOAD_URL = 'no-download-url',\n  INVALID_ARGUMENT = 'invalid-argument',\n  INVALID_ARGUMENT_COUNT = 'invalid-argument-count',\n  APP_DELETED = 'app-deleted',\n  INVALID_ROOT_OPERATION = 'invalid-root-operation',\n  INVALID_FORMAT = 'invalid-format',\n  INTERNAL_ERROR = 'internal-error',\n  UNSUPPORTED_ENVIRONMENT = 'unsupported-environment'\n}\n\nexport function prependCode(code: StorageErrorCode): string {\n  return 'storage/' + code;\n}\n\nexport function unknown(): StorageError {\n  const message =\n    'An unknown error occurred, please check the error payload for ' +\n    'server response.';\n  return new StorageError(StorageErrorCode.UNKNOWN, message);\n}\n\nexport function objectNotFound(path: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.OBJECT_NOT_FOUND,\n    \"Object '\" + path + \"' does not exist.\"\n  );\n}\n\nexport function bucketNotFound(bucket: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.BUCKET_NOT_FOUND,\n    \"Bucket '\" + bucket + \"' does not exist.\"\n  );\n}\n\nexport function projectNotFound(project: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.PROJECT_NOT_FOUND,\n    \"Project '\" + project + \"' does not exist.\"\n  );\n}\n\nexport function quotaExceeded(bucket: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.QUOTA_EXCEEDED,\n    \"Quota for bucket '\" +\n      bucket +\n      \"' exceeded, please view quota on \" +\n      'https://firebase.google.com/pricing/.'\n  );\n}\n\nexport function unauthenticated(): StorageError {\n  const message =\n    'User is not authenticated, please authenticate using Firebase ' +\n    'Authentication and try again.';\n  return new StorageError(StorageErrorCode.UNAUTHENTICATED, message);\n}\n\nexport function unauthorizedApp(): StorageError {\n  return new StorageError(\n    StorageErrorCode.UNAUTHORIZED_APP,\n    'This app does not have permission to access Firebase Storage on this project.'\n  );\n}\n\nexport function unauthorized(path: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.UNAUTHORIZED,\n    \"User does not have permission to access '\" + path + \"'.\"\n  );\n}\n\nexport function retryLimitExceeded(): StorageError {\n  return new StorageError(\n    StorageErrorCode.RETRY_LIMIT_EXCEEDED,\n    'Max retry time for operation exceeded, please try again.'\n  );\n}\n\nexport function invalidChecksum(\n  path: string,\n  checksum: string,\n  calculated: string\n): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_CHECKSUM,\n    \"Uploaded/downloaded object '\" +\n      path +\n      \"' has checksum '\" +\n      checksum +\n      \"' which does not match '\" +\n      calculated +\n      \"'. Please retry the upload/download.\"\n  );\n}\n\nexport function canceled(): StorageError {\n  return new StorageError(\n    StorageErrorCode.CANCELED,\n    'User canceled the upload/download.'\n  );\n}\n\nexport function invalidEventName(name: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_EVENT_NAME,\n    \"Invalid event name '\" + name + \"'.\"\n  );\n}\n\nexport function invalidUrl(url: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_URL,\n    \"Invalid URL '\" + url + \"'.\"\n  );\n}\n\nexport function invalidDefaultBucket(bucket: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_DEFAULT_BUCKET,\n    \"Invalid default bucket '\" + bucket + \"'.\"\n  );\n}\n\nexport function noDefaultBucket(): StorageError {\n  return new StorageError(\n    StorageErrorCode.NO_DEFAULT_BUCKET,\n    'No default bucket ' +\n      \"found. Did you set the '\" +\n      CONFIG_STORAGE_BUCKET_KEY +\n      \"' property when initializing the app?\"\n  );\n}\n\nexport function cannotSliceBlob(): StorageError {\n  return new StorageError(\n    StorageErrorCode.CANNOT_SLICE_BLOB,\n    'Cannot slice blob for upload. Please retry the upload.'\n  );\n}\n\nexport function serverFileWrongSize(): StorageError {\n  return new StorageError(\n    StorageErrorCode.SERVER_FILE_WRONG_SIZE,\n    'Server recorded incorrect upload file size, please retry the upload.'\n  );\n}\n\nexport function noDownloadURL(): StorageError {\n  return new StorageError(\n    StorageErrorCode.NO_DOWNLOAD_URL,\n    'The given file does not have any download URLs.'\n  );\n}\n\nexport function missingPolyFill(polyFill: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.UNSUPPORTED_ENVIRONMENT,\n    `${polyFill} is missing. Make sure to install the required polyfills. See https://firebase.google.com/docs/web/environments-js-sdk#polyfills for more information.`\n  );\n}\n\n/**\n * @internal\n */\nexport function invalidArgument(message: string): StorageError {\n  return new StorageError(StorageErrorCode.INVALID_ARGUMENT, message);\n}\n\nexport function invalidArgumentCount(\n  argMin: number,\n  argMax: number,\n  fnName: string,\n  real: number\n): StorageError {\n  let countPart;\n  let plural;\n  if (argMin === argMax) {\n    countPart = argMin;\n    plural = argMin === 1 ? 'argument' : 'arguments';\n  } else {\n    countPart = 'between ' + argMin + ' and ' + argMax;\n    plural = 'arguments';\n  }\n  return new StorageError(\n    StorageErrorCode.INVALID_ARGUMENT_COUNT,\n    'Invalid argument count in `' +\n      fnName +\n      '`: Expected ' +\n      countPart +\n      ' ' +\n      plural +\n      ', received ' +\n      real +\n      '.'\n  );\n}\n\nexport function appDeleted(): StorageError {\n  return new StorageError(\n    StorageErrorCode.APP_DELETED,\n    'The Firebase app was deleted.'\n  );\n}\n\n/**\n * @param name - The name of the operation that was invalid.\n *\n * @internal\n */\nexport function invalidRootOperation(name: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_ROOT_OPERATION,\n    \"The operation '\" +\n      name +\n      \"' cannot be performed on a root reference, create a non-root \" +\n      \"reference using child, such as .child('file.png').\"\n  );\n}\n\n/**\n * @param format - The format that was not valid.\n * @param message - A message describing the format violation.\n */\nexport function invalidFormat(format: string, message: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_FORMAT,\n    \"String does not match format '\" + format + \"': \" + message\n  );\n}\n\n/**\n * @param message - A message describing the internal error.\n */\nexport function unsupportedEnvironment(message: string): StorageError {\n  throw new StorageError(StorageErrorCode.UNSUPPORTED_ENVIRONMENT, message);\n}\n\n/**\n * @param message - A message describing the internal error.\n */\nexport function internalError(message: string): StorageError {\n  throw new StorageError(\n    StorageErrorCode.INTERNAL_ERROR,\n    'Internal error: ' + message\n  );\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Functionality related to the parsing/composition of bucket/\n * object location.\n */\n\nimport { invalidDefaultBucket, invalidUrl } from './error';\nimport { DEFAULT_HOST } from './constants';\n\n/**\n * Firebase Storage location data.\n *\n * @internal\n */\nexport class Location {\n  private path_: string;\n\n  constructor(public readonly bucket: string, path: string) {\n    this.path_ = path;\n  }\n\n  get path(): string {\n    return this.path_;\n  }\n\n  get isRoot(): boolean {\n    return this.path.length === 0;\n  }\n\n  fullServerUrl(): string {\n    const encode = encodeURIComponent;\n    return '/b/' + encode(this.bucket) + '/o/' + encode(this.path);\n  }\n\n  bucketOnlyServerUrl(): string {\n    const encode = encodeURIComponent;\n    return '/b/' + encode(this.bucket) + '/o';\n  }\n\n  static makeFromBucketSpec(bucketString: string, host: string): Location {\n    let bucketLocation;\n    try {\n      bucketLocation = Location.makeFromUrl(bucketString, host);\n    } catch (e) {\n      // Not valid URL, use as-is. This lets you put bare bucket names in\n      // config.\n      return new Location(bucketString, '');\n    }\n    if (bucketLocation.path === '') {\n      return bucketLocation;\n    } else {\n      throw invalidDefaultBucket(bucketString);\n    }\n  }\n\n  static makeFromUrl(url: string, host: string): Location {\n    let location: Location | null = null;\n    const bucketDomain = '([A-Za-z0-9.\\\\-_]+)';\n\n    function gsModify(loc: Location): void {\n      if (loc.path.charAt(loc.path.length - 1) === '/') {\n        loc.path_ = loc.path_.slice(0, -1);\n      }\n    }\n    const gsPath = '(/(.*))?$';\n    const gsRegex = new RegExp('^gs://' + bucketDomain + gsPath, 'i');\n    const gsIndices = { bucket: 1, path: 3 };\n\n    function httpModify(loc: Location): void {\n      loc.path_ = decodeURIComponent(loc.path);\n    }\n    const version = 'v[A-Za-z0-9_]+';\n    const firebaseStorageHost = host.replace(/[.]/g, '\\\\.');\n    const firebaseStoragePath = '(/([^?#]*).*)?$';\n    const firebaseStorageRegExp = new RegExp(\n      `^https?://${firebaseStorageHost}/${version}/b/${bucketDomain}/o${firebaseStoragePath}`,\n      'i'\n    );\n    const firebaseStorageIndices = { bucket: 1, path: 3 };\n\n    const cloudStorageHost =\n      host === DEFAULT_HOST\n        ? '(?:storage.googleapis.com|storage.cloud.google.com)'\n        : host;\n    const cloudStoragePath = '([^?#]*)';\n    const cloudStorageRegExp = new RegExp(\n      `^https?://${cloudStorageHost}/${bucketDomain}/${cloudStoragePath}`,\n      'i'\n    );\n    const cloudStorageIndices = { bucket: 1, path: 2 };\n\n    const groups = [\n      { regex: gsRegex, indices: gsIndices, postModify: gsModify },\n      {\n        regex: firebaseStorageRegExp,\n        indices: firebaseStorageIndices,\n        postModify: httpModify\n      },\n      {\n        regex: cloudStorageRegExp,\n        indices: cloudStorageIndices,\n        postModify: httpModify\n      }\n    ];\n    for (let i = 0; i < groups.length; i++) {\n      const group = groups[i];\n      const captures = group.regex.exec(url);\n      if (captures) {\n        const bucketValue = captures[group.indices.bucket];\n        let pathValue = captures[group.indices.path];\n        if (!pathValue) {\n          pathValue = '';\n        }\n        location = new Location(bucketValue, pathValue);\n        group.postModify(location);\n        break;\n      }\n    }\n    if (location == null) {\n      throw invalidUrl(url);\n    }\n    return location;\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport { StorageError } from './error';\nimport { Request } from './request';\n\n/**\n * A request whose promise always fails.\n */\nexport class FailRequest<T> implements Request<T> {\n  promise_: Promise<T>;\n\n  constructor(error: StorageError) {\n    this.promise_ = Promise.reject<T>(error);\n  }\n\n  /** @inheritDoc */\n  getPromise(): Promise<T> {\n    return this.promise_;\n  }\n\n  /** @inheritDoc */\n  cancel(_appDelete = false): void {}\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Provides a method for running a function with exponential\n * backoff.\n */\ntype id = (p1: boolean) => void;\n\nexport { id };\n\n/**\n * Accepts a callback for an action to perform (`doRequest`),\n * and then a callback for when the backoff has completed (`backoffCompleteCb`).\n * The callback sent to start requires an argument to call (`onRequestComplete`).\n * When `start` calls `doRequest`, it passes a callback for when the request has\n * completed, `onRequestComplete`. Based on this, the backoff continues, with\n * another call to `doRequest` and the above loop continues until the timeout\n * is hit, or a successful response occurs.\n * @description\n * @param doRequest Callback to perform request\n * @param backoffCompleteCb Callback to call when backoff has been completed\n */\nexport function start(\n  doRequest: (\n    onRequestComplete: (success: boolean) => void,\n    canceled: boolean\n  ) => void,\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  backoffCompleteCb: (...args: any[]) => unknown,\n  timeout: number\n): id {\n  // TODO(andysoto): make this code cleaner (probably refactor into an actual\n  // type instead of a bunch of functions with state shared in the closure)\n  let waitSeconds = 1;\n  // Would type this as \"number\" but that doesn't work for Node so ¯\\_(ツ)_/¯\n  // TODO: find a way to exclude Node type definition for storage because storage only works in browser\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  let retryTimeoutId: any = null;\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  let globalTimeoutId: any = null;\n  let hitTimeout = false;\n  let cancelState = 0;\n\n  function canceled(): boolean {\n    return cancelState === 2;\n  }\n  let triggeredCallback = false;\n\n  function triggerCallback(...args: any[]): void {\n    if (!triggeredCallback) {\n      triggeredCallback = true;\n      backoffCompleteCb.apply(null, args);\n    }\n  }\n\n  function callWithDelay(millis: number): void {\n    retryTimeoutId = setTimeout(() => {\n      retryTimeoutId = null;\n      doRequest(responseHandler, canceled());\n    }, millis);\n  }\n\n  function clearGlobalTimeout(): void {\n    if (globalTimeoutId) {\n      clearTimeout(globalTimeoutId);\n    }\n  }\n\n  function responseHandler(success: boolean, ...args: any[]): void {\n    if (triggeredCallback) {\n      clearGlobalTimeout();\n      return;\n    }\n    if (success) {\n      clearGlobalTimeout();\n      triggerCallback.call(null, success, ...args);\n      return;\n    }\n    const mustStop = canceled() || hitTimeout;\n    if (mustStop) {\n      clearGlobalTimeout();\n      triggerCallback.call(null, success, ...args);\n      return;\n    }\n    if (waitSeconds < 64) {\n      /* TODO(andysoto): don't back off so quickly if we know we're offline. */\n      waitSeconds *= 2;\n    }\n    let waitMillis;\n    if (cancelState === 1) {\n      cancelState = 2;\n      waitMillis = 0;\n    } else {\n      waitMillis = (waitSeconds + Math.random()) * 1000;\n    }\n    callWithDelay(waitMillis);\n  }\n  let stopped = false;\n\n  function stop(wasTimeout: boolean): void {\n    if (stopped) {\n      return;\n    }\n    stopped = true;\n    clearGlobalTimeout();\n    if (triggeredCallback) {\n      return;\n    }\n    if (retryTimeoutId !== null) {\n      if (!wasTimeout) {\n        cancelState = 2;\n      }\n      clearTimeout(retryTimeoutId);\n      callWithDelay(0);\n    } else {\n      if (!wasTimeout) {\n        cancelState = 1;\n      }\n    }\n  }\n  callWithDelay(0);\n  globalTimeoutId = setTimeout(() => {\n    hitTimeout = true;\n    stop(true);\n  }, timeout);\n  return stop;\n}\n\n/**\n * Stops the retry loop from repeating.\n * If the function is currently \"in between\" retries, it is invoked immediately\n * with the second parameter as \"true\". Otherwise, it will be invoked once more\n * after the current invocation finishes iff the current invocation would have\n * triggered another retry.\n */\nexport function stop(id: id): void {\n  id(false);\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { invalidArgument } from './error';\n\nexport function isJustDef<T>(p: T | null | undefined): p is T | null {\n  return p !== void 0;\n}\n\n// eslint-disable-next-line @typescript-eslint/ban-types\nexport function isFunction(p: unknown): p is Function {\n  return typeof p === 'function';\n}\n\nexport function isNonArrayObject(p: unknown): boolean {\n  return typeof p === 'object' && !Array.isArray(p);\n}\n\nexport function isString(p: unknown): p is string {\n  return typeof p === 'string' || p instanceof String;\n}\n\nexport function isNativeBlob(p: unknown): p is Blob {\n  return isNativeBlobDefined() && p instanceof Blob;\n}\n\nexport function isNativeBlobDefined(): boolean {\n  return typeof Blob !== 'undefined';\n}\n\nexport function validateNumber(\n  argument: string,\n  minValue: number,\n  maxValue: number,\n  value: number\n): void {\n  if (value < minValue) {\n    throw invalidArgument(\n      `Invalid value for '${argument}'. Expected ${minValue} or greater.`\n    );\n  }\n  if (value > maxValue) {\n    throw invalidArgument(\n      `Invalid value for '${argument}'. Expected ${maxValue} or less.`\n    );\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Functions to create and manipulate URLs for the server API.\n */\nimport { UrlParams } from './requestinfo';\n\nexport function makeUrl(\n  urlPart: string,\n  host: string,\n  protocol: string\n): string {\n  let origin = host;\n  if (protocol == null) {\n    origin = `https://${host}`;\n  }\n  return `${protocol}://${origin}/v0${urlPart}`;\n}\n\nexport function makeQueryString(params: UrlParams): string {\n  const encode = encodeURIComponent;\n  let queryPart = '?';\n  for (const key in params) {\n    if (params.hasOwnProperty(key)) {\n      const nextPart = encode(key) + '=' + encode(params[key]);\n      queryPart = queryPart + nextPart + '&';\n    }\n  }\n\n  // Chop off the extra '&' or '?' on the end\n  queryPart = queryPart.slice(0, -1);\n  return queryPart;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/** Network headers */\nexport type Headers = Record<string, string>;\n\n/** Response type exposed by the networking APIs. */\nexport type ConnectionType =\n  | string\n  | ArrayBuffer\n  | Blob\n  | ReadableStream<Uint8Array>;\n\n/**\n * A lightweight wrapper around XMLHttpRequest with a\n * goog.net.XhrIo-like interface.\n *\n * You can create a new connection by invoking `newTextConnection()`,\n * `newBytesConnection()` or `newStreamConnection()`.\n */\nexport interface Connection<T extends ConnectionType> {\n  /**\n   * Sends a request to the provided URL.\n   *\n   * This method never rejects its promise. In case of encountering an error,\n   * it sets an error code internally which can be accessed by calling\n   * getErrorCode() by callers.\n   */\n  send(\n    url: string,\n    method: string,\n    isUsingEmulator: boolean,\n    body?: ArrayBufferView | Blob | string | null,\n    headers?: Headers\n  ): Promise<void>;\n\n  getErrorCode(): ErrorCode;\n\n  getStatus(): number;\n\n  getResponse(): T;\n\n  getErrorText(): string;\n\n  /**\n   * Abort the request.\n   */\n  abort(): void;\n\n  getResponseHeader(header: string): string | null;\n\n  addUploadProgressListener(listener: (p1: ProgressEvent) => void): void;\n\n  removeUploadProgressListener(listener: (p1: ProgressEvent) => void): void;\n}\n\n/**\n * Error codes for requests made by the XhrIo wrapper.\n */\nexport enum ErrorCode {\n  NO_ERROR = 0,\n  NETWORK_ERROR = 1,\n  ABORT = 2\n}\n","/**\n * @license\n * Copyright 2022 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * Checks the status code to see if the action should be retried.\n *\n * @param status Current HTTP status code returned by server.\n * @param additionalRetryCodes additional retry codes to check against\n */\nexport function isRetryStatusCode(\n  status: number,\n  additionalRetryCodes: number[]\n): boolean {\n  // The codes for which to retry came from this page:\n  // https://cloud.google.com/storage/docs/exponential-backoff\n  const isFiveHundredCode = status >= 500 && status < 600;\n  const extraRetryCodes = [\n    // Request Timeout: web server didn't receive full request in time.\n    408,\n    // Too Many Requests: you're getting rate-limited, basically.\n    429\n  ];\n  const isExtraRetryCode = extraRetryCodes.indexOf(status) !== -1;\n  const isAdditionalRetryCode = additionalRetryCodes.indexOf(status) !== -1;\n  return isFiveHundredCode || isExtraRetryCode || isAdditionalRetryCode;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Defines methods used to actually send HTTP requests from\n * abstract representations.\n */\n\nimport { id as backoffId, start, stop } from './backoff';\nimport { appDeleted, canceled, retryLimitExceeded, unknown } from './error';\nimport { ErrorHandler, RequestHandler, RequestInfo } from './requestinfo';\nimport { isJustDef } from './type';\nimport { makeQueryString } from './url';\nimport { Connection, ErrorCode, Headers, ConnectionType } from './connection';\nimport { isRetryStatusCode } from './utils';\n\nexport interface Request<T> {\n  getPromise(): Promise<T>;\n\n  /**\n   * Cancels the request. IMPORTANT: the promise may still be resolved with an\n   * appropriate value (if the request is finished before you call this method,\n   * but the promise has not yet been resolved), so don't just assume it will be\n   * rejected if you call this function.\n   * @param appDelete - True if the cancelation came from the app being deleted.\n   */\n  cancel(appDelete?: boolean): void;\n}\n\n/**\n * Handles network logic for all Storage Requests, including error reporting and\n * retries with backoff.\n *\n * @param I - the type of the backend's network response.\n * @param - O the output type used by the rest of the SDK. The conversion\n * happens in the specified `callback_`.\n */\nclass NetworkRequest<I extends ConnectionType, O> implements Request<O> {\n  private pendingConnection_: Connection<I> | null = null;\n  private backoffId_: backoffId | null = null;\n  private resolve_!: (value?: O | PromiseLike<O>) => void;\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  private reject_!: (reason?: any) => void;\n  private canceled_: boolean = false;\n  private appDelete_: boolean = false;\n  private promise_: Promise<O>;\n\n  constructor(\n    private url_: string,\n    private method_: string,\n    private headers_: Headers,\n    private body_: string | Blob | Uint8Array | null,\n    private successCodes_: number[],\n    private additionalRetryCodes_: number[],\n    private callback_: RequestHandler<I, O>,\n    private errorCallback_: ErrorHandler | null,\n    private timeout_: number,\n    private progressCallback_: ((p1: number, p2: number) => void) | null,\n    private connectionFactory_: () => Connection<I>,\n    private retry = true,\n    private isUsingEmulator = false\n  ) {\n    this.promise_ = new Promise((resolve, reject) => {\n      this.resolve_ = resolve as (value?: O | PromiseLike<O>) => void;\n      this.reject_ = reject;\n      this.start_();\n    });\n  }\n\n  /**\n   * Actually starts the retry loop.\n   */\n  private start_(): void {\n    const doTheRequest: (\n      backoffCallback: (success: boolean, ...p2: unknown[]) => void,\n      canceled: boolean\n    ) => void = (backoffCallback, canceled) => {\n      if (canceled) {\n        backoffCallback(false, new RequestEndStatus(false, null, true));\n        return;\n      }\n      const connection = this.connectionFactory_();\n      this.pendingConnection_ = connection;\n\n      const progressListener: (\n        progressEvent: ProgressEvent\n      ) => void = progressEvent => {\n        const loaded = progressEvent.loaded;\n        const total = progressEvent.lengthComputable ? progressEvent.total : -1;\n        if (this.progressCallback_ !== null) {\n          this.progressCallback_(loaded, total);\n        }\n      };\n      if (this.progressCallback_ !== null) {\n        connection.addUploadProgressListener(progressListener);\n      }\n\n      // connection.send() never rejects, so we don't need to have a error handler or use catch on the returned promise.\n      // eslint-disable-next-line @typescript-eslint/no-floating-promises\n      connection\n        .send(\n          this.url_,\n          this.method_,\n          this.isUsingEmulator,\n          this.body_,\n          this.headers_\n        )\n        .then(() => {\n          if (this.progressCallback_ !== null) {\n            connection.removeUploadProgressListener(progressListener);\n          }\n          this.pendingConnection_ = null;\n          const hitServer = connection.getErrorCode() === ErrorCode.NO_ERROR;\n          const status = connection.getStatus();\n          if (\n            !hitServer ||\n            (isRetryStatusCode(status, this.additionalRetryCodes_) &&\n              this.retry)\n          ) {\n            const wasCanceled = connection.getErrorCode() === ErrorCode.ABORT;\n            backoffCallback(\n              false,\n              new RequestEndStatus(false, null, wasCanceled)\n            );\n            return;\n          }\n          const successCode = this.successCodes_.indexOf(status) !== -1;\n          backoffCallback(true, new RequestEndStatus(successCode, connection));\n        });\n    };\n\n    /**\n     * @param requestWentThrough - True if the request eventually went\n     *     through, false if it hit the retry limit or was canceled.\n     */\n    const backoffDone: (\n      requestWentThrough: boolean,\n      status: RequestEndStatus<I>\n    ) => void = (requestWentThrough, status) => {\n      const resolve = this.resolve_;\n      const reject = this.reject_;\n      const connection = status.connection as Connection<I>;\n      if (status.wasSuccessCode) {\n        try {\n          const result = this.callback_(connection, connection.getResponse());\n          if (isJustDef(result)) {\n            resolve(result);\n          } else {\n            resolve();\n          }\n        } catch (e) {\n          reject(e);\n        }\n      } else {\n        if (connection !== null) {\n          const err = unknown();\n          err.serverResponse = connection.getErrorText();\n          if (this.errorCallback_) {\n            reject(this.errorCallback_(connection, err));\n          } else {\n            reject(err);\n          }\n        } else {\n          if (status.canceled) {\n            const err = this.appDelete_ ? appDeleted() : canceled();\n            reject(err);\n          } else {\n            const err = retryLimitExceeded();\n            reject(err);\n          }\n        }\n      }\n    };\n    if (this.canceled_) {\n      backoffDone(false, new RequestEndStatus(false, null, true));\n    } else {\n      this.backoffId_ = start(doTheRequest, backoffDone, this.timeout_);\n    }\n  }\n\n  /** @inheritDoc */\n  getPromise(): Promise<O> {\n    return this.promise_;\n  }\n\n  /** @inheritDoc */\n  cancel(appDelete?: boolean): void {\n    this.canceled_ = true;\n    this.appDelete_ = appDelete || false;\n    if (this.backoffId_ !== null) {\n      stop(this.backoffId_);\n    }\n    if (this.pendingConnection_ !== null) {\n      this.pendingConnection_.abort();\n    }\n  }\n}\n\n/**\n * A collection of information about the result of a network request.\n * @param opt_canceled - Defaults to false.\n */\nexport class RequestEndStatus<I extends ConnectionType> {\n  /**\n   * True if the request was canceled.\n   */\n  canceled: boolean;\n\n  constructor(\n    public wasSuccessCode: boolean,\n    public connection: Connection<I> | null,\n    canceled?: boolean\n  ) {\n    this.canceled = !!canceled;\n  }\n}\n\nexport function addAuthHeader_(\n  headers: Headers,\n  authToken: string | null\n): void {\n  if (authToken !== null && authToken.length > 0) {\n    headers['Authorization'] = 'Firebase ' + authToken;\n  }\n}\n\nexport function addVersionHeader_(\n  headers: Headers,\n  firebaseVersion?: string\n): void {\n  headers['X-Firebase-Storage-Version'] =\n    'webjs/' + (firebaseVersion ?? 'AppManager');\n}\n\nexport function addGmpidHeader_(headers: Headers, appId: string | null): void {\n  if (appId) {\n    headers['X-Firebase-GMPID'] = appId;\n  }\n}\n\nexport function addAppCheckHeader_(\n  headers: Headers,\n  appCheckToken: string | null\n): void {\n  if (appCheckToken !== null) {\n    headers['X-Firebase-AppCheck'] = appCheckToken;\n  }\n}\n\nexport function makeRequest<I extends ConnectionType, O>(\n  requestInfo: RequestInfo<I, O>,\n  appId: string | null,\n  authToken: string | null,\n  appCheckToken: string | null,\n  requestFactory: () => Connection<I>,\n  firebaseVersion?: string,\n  retry = true,\n  isUsingEmulator = false\n): Request<O> {\n  const queryPart = makeQueryString(requestInfo.urlParams);\n  const url = requestInfo.url + queryPart;\n  const headers = Object.assign({}, requestInfo.headers);\n  addGmpidHeader_(headers, appId);\n  addAuthHeader_(headers, authToken);\n  addVersionHeader_(headers, firebaseVersion);\n  addAppCheckHeader_(headers, appCheckToken);\n  return new NetworkRequest<I, O>(\n    url,\n    requestInfo.method,\n    headers,\n    requestInfo.body,\n    requestInfo.successCodes,\n    requestInfo.additionalRetryCodes,\n    requestInfo.handler,\n    requestInfo.errorHandler,\n    requestInfo.timeout,\n    requestInfo.progressCallback,\n    requestFactory,\n    retry,\n    isUsingEmulator\n  );\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * @fileoverview Some methods copied from goog.fs.\n * We don't include goog.fs because it pulls in a bunch of Deferred code that\n * bloats the size of the released binary.\n */\nimport { isNativeBlobDefined } from './type';\nimport { StorageErrorCode, StorageError } from './error';\n\nfunction getBlobBuilder(): typeof IBlobBuilder | undefined {\n  if (typeof BlobBuilder !== 'undefined') {\n    return BlobBuilder;\n  } else if (typeof WebKitBlobBuilder !== 'undefined') {\n    return WebKitBlobBuilder;\n  } else {\n    return undefined;\n  }\n}\n\n/**\n * Concatenates one or more values together and converts them to a Blob.\n *\n * @param args The values that will make up the resulting blob.\n * @return The blob.\n */\nexport function getBlob(...args: Array<string | Blob | ArrayBuffer>): Blob {\n  const BlobBuilder = getBlobBuilder();\n  if (BlobBuilder !== undefined) {\n    const bb = new BlobBuilder();\n    for (let i = 0; i < args.length; i++) {\n      bb.append(args[i]);\n    }\n    return bb.getBlob();\n  } else {\n    if (isNativeBlobDefined()) {\n      return new Blob(args);\n    } else {\n      throw new StorageError(\n        StorageErrorCode.UNSUPPORTED_ENVIRONMENT,\n        \"This browser doesn't seem to support creating Blobs\"\n      );\n    }\n  }\n}\n\n/**\n * Slices the blob. The returned blob contains data from the start byte\n * (inclusive) till the end byte (exclusive). Negative indices cannot be used.\n *\n * @param blob The blob to be sliced.\n * @param start Index of the starting byte.\n * @param end Index of the ending byte.\n * @return The blob slice or null if not supported.\n */\nexport function sliceBlob(blob: Blob, start: number, end: number): Blob | null {\n  if (blob.webkitSlice) {\n    return blob.webkitSlice(start, end);\n  } else if (blob.mozSlice) {\n    return blob.mozSlice(start, end);\n  } else if (blob.slice) {\n    return blob.slice(start, end);\n  }\n  return null;\n}\n","/**\n * @license\n * Copyright 2021 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { missingPolyFill } from '../../implementation/error';\n\n/** Converts a Base64 encoded string to a binary string. */\nexport function decodeBase64(encoded: string): string {\n  if (typeof atob === 'undefined') {\n    throw missingPolyFill('base-64');\n  }\n  return atob(encoded);\n}\n\nexport function decodeUint8Array(data: Uint8Array): string {\n  return new TextDecoder().decode(data);\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { unknown, invalidFormat } from './error';\nimport { decodeBase64 } from '../platform/base64';\n\n/**\n * An enumeration of the possible string formats for upload.\n * @public\n */\nexport type StringFormat = (typeof StringFormat)[keyof typeof StringFormat];\n/**\n * An enumeration of the possible string formats for upload.\n * @public\n */\nexport const StringFormat = {\n  /**\n   * Indicates the string should be interpreted \"raw\", that is, as normal text.\n   * The string will be interpreted as UTF-16, then uploaded as a UTF-8 byte\n   * sequence.\n   * Example: The string 'Hello! \\\\ud83d\\\\ude0a' becomes the byte sequence\n   * 48 65 6c 6c 6f 21 20 f0 9f 98 8a\n   */\n  RAW: 'raw',\n  /**\n   * Indicates the string should be interpreted as base64-encoded data.\n   * Padding characters (trailing '='s) are optional.\n   * Example: The string 'rWmO++E6t7/rlw==' becomes the byte sequence\n   * ad 69 8e fb e1 3a b7 bf eb 97\n   */\n  BASE64: 'base64',\n  /**\n   * Indicates the string should be interpreted as base64url-encoded data.\n   * Padding characters (trailing '='s) are optional.\n   * Example: The string 'rWmO--E6t7_rlw==' becomes the byte sequence\n   * ad 69 8e fb e1 3a b7 bf eb 97\n   */\n  BASE64URL: 'base64url',\n  /**\n   * Indicates the string is a data URL, such as one obtained from\n   * canvas.toDataURL().\n   * Example: the string 'data:application/octet-stream;base64,aaaa'\n   * becomes the byte sequence\n   * 69 a6 9a\n   * (the content-type \"application/octet-stream\" is also applied, but can\n   * be overridden in the metadata object).\n   */\n  DATA_URL: 'data_url'\n} as const;\n\nexport class StringData {\n  contentType: string | null;\n\n  constructor(public data: Uint8Array, contentType?: string | null) {\n    this.contentType = contentType || null;\n  }\n}\n\n/**\n * @internal\n */\nexport function dataFromString(\n  format: StringFormat,\n  stringData: string\n): StringData {\n  switch (format) {\n    case StringFormat.RAW:\n      return new StringData(utf8Bytes_(stringData));\n    case StringFormat.BASE64:\n    case StringFormat.BASE64URL:\n      return new StringData(base64Bytes_(format, stringData));\n    case StringFormat.DATA_URL:\n      return new StringData(\n        dataURLBytes_(stringData),\n        dataURLContentType_(stringData)\n      );\n    default:\n    // do nothing\n  }\n\n  // assert(false);\n  throw unknown();\n}\n\nexport function utf8Bytes_(value: string): Uint8Array {\n  const b: number[] = [];\n  for (let i = 0; i < value.length; i++) {\n    let c = value.charCodeAt(i);\n    if (c <= 127) {\n      b.push(c);\n    } else {\n      if (c <= 2047) {\n        b.push(192 | (c >> 6), 128 | (c & 63));\n      } else {\n        if ((c & 64512) === 55296) {\n          // The start of a surrogate pair.\n          const valid =\n            i < value.length - 1 && (value.charCodeAt(i + 1) & 64512) === 56320;\n          if (!valid) {\n            // The second surrogate wasn't there.\n            b.push(239, 191, 189);\n          } else {\n            const hi = c;\n            const lo = value.charCodeAt(++i);\n            c = 65536 | ((hi & 1023) << 10) | (lo & 1023);\n            b.push(\n              240 | (c >> 18),\n              128 | ((c >> 12) & 63),\n              128 | ((c >> 6) & 63),\n              128 | (c & 63)\n            );\n          }\n        } else {\n          if ((c & 64512) === 56320) {\n            // Invalid low surrogate.\n            b.push(239, 191, 189);\n          } else {\n            b.push(224 | (c >> 12), 128 | ((c >> 6) & 63), 128 | (c & 63));\n          }\n        }\n      }\n    }\n  }\n  return new Uint8Array(b);\n}\n\nexport function percentEncodedBytes_(value: string): Uint8Array {\n  let decoded;\n  try {\n    decoded = decodeURIComponent(value);\n  } catch (e) {\n    throw invalidFormat(StringFormat.DATA_URL, 'Malformed data URL.');\n  }\n  return utf8Bytes_(decoded);\n}\n\nexport function base64Bytes_(format: StringFormat, value: string): Uint8Array {\n  switch (format) {\n    case StringFormat.BASE64: {\n      const hasMinus = value.indexOf('-') !== -1;\n      const hasUnder = value.indexOf('_') !== -1;\n      if (hasMinus || hasUnder) {\n        const invalidChar = hasMinus ? '-' : '_';\n        throw invalidFormat(\n          format,\n          \"Invalid character '\" +\n            invalidChar +\n            \"' found: is it base64url encoded?\"\n        );\n      }\n      break;\n    }\n    case StringFormat.BASE64URL: {\n      const hasPlus = value.indexOf('+') !== -1;\n      const hasSlash = value.indexOf('/') !== -1;\n      if (hasPlus || hasSlash) {\n        const invalidChar = hasPlus ? '+' : '/';\n        throw invalidFormat(\n          format,\n          \"Invalid character '\" + invalidChar + \"' found: is it base64 encoded?\"\n        );\n      }\n      value = value.replace(/-/g, '+').replace(/_/g, '/');\n      break;\n    }\n    default:\n    // do nothing\n  }\n  let bytes;\n  try {\n    bytes = decodeBase64(value);\n  } catch (e) {\n    if ((e as Error).message.includes('polyfill')) {\n      throw e;\n    }\n    throw invalidFormat(format, 'Invalid character found');\n  }\n  const array = new Uint8Array(bytes.length);\n  for (let i = 0; i < bytes.length; i++) {\n    array[i] = bytes.charCodeAt(i);\n  }\n  return array;\n}\n\nclass DataURLParts {\n  base64: boolean = false;\n  contentType: string | null = null;\n  rest: string;\n\n  constructor(dataURL: string) {\n    const matches = dataURL.match(/^data:([^,]+)?,/);\n    if (matches === null) {\n      throw invalidFormat(\n        StringFormat.DATA_URL,\n        \"Must be formatted 'data:[<mediatype>][;base64],<data>\"\n      );\n    }\n    const middle = matches[1] || null;\n    if (middle != null) {\n      this.base64 = endsWith(middle, ';base64');\n      this.contentType = this.base64\n        ? middle.substring(0, middle.length - ';base64'.length)\n        : middle;\n    }\n    this.rest = dataURL.substring(dataURL.indexOf(',') + 1);\n  }\n}\n\nexport function dataURLBytes_(dataUrl: string): Uint8Array {\n  const parts = new DataURLParts(dataUrl);\n  if (parts.base64) {\n    return base64Bytes_(StringFormat.BASE64, parts.rest);\n  } else {\n    return percentEncodedBytes_(parts.rest);\n  }\n}\n\nexport function dataURLContentType_(dataUrl: string): string | null {\n  const parts = new DataURLParts(dataUrl);\n  return parts.contentType;\n}\n\nfunction endsWith(s: string, end: string): boolean {\n  const longEnough = s.length >= end.length;\n  if (!longEnough) {\n    return false;\n  }\n\n  return s.substring(s.length - end.length) === end;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @file Provides a Blob-like wrapper for various binary types (including the\n * native Blob type). This makes it possible to upload types like ArrayBuffers,\n * making uploads possible in environments without the native Blob type.\n */\nimport { sliceBlob, getBlob } from './fs';\nimport { StringFormat, dataFromString } from './string';\nimport { isNativeBlob, isNativeBlobDefined, isString } from './type';\n\n/**\n * @param opt_elideCopy - If true, doesn't copy mutable input data\n *     (e.g. Uint8Arrays). Pass true only if you know the objects will not be\n *     modified after this blob's construction.\n *\n * @internal\n */\nexport class FbsBlob {\n  private data_!: Blob | Uint8Array;\n  private size_: number;\n  private type_: string;\n\n  constructor(data: Blob | Uint8Array | ArrayBuffer, elideCopy?: boolean) {\n    let size: number = 0;\n    let blobType: string = '';\n    if (isNativeBlob(data)) {\n      this.data_ = data as Blob;\n      size = (data as Blob).size;\n      blobType = (data as Blob).type;\n    } else if (data instanceof ArrayBuffer) {\n      if (elideCopy) {\n        this.data_ = new Uint8Array(data);\n      } else {\n        this.data_ = new Uint8Array(data.byteLength);\n        this.data_.set(new Uint8Array(data));\n      }\n      size = this.data_.length;\n    } else if (data instanceof Uint8Array) {\n      if (elideCopy) {\n        this.data_ = data as Uint8Array;\n      } else {\n        this.data_ = new Uint8Array(data.length);\n        this.data_.set(data as Uint8Array);\n      }\n      size = data.length;\n    }\n    this.size_ = size;\n    this.type_ = blobType;\n  }\n\n  size(): number {\n    return this.size_;\n  }\n\n  type(): string {\n    return this.type_;\n  }\n\n  slice(startByte: number, endByte: number): FbsBlob | null {\n    if (isNativeBlob(this.data_)) {\n      const realBlob = this.data_ as Blob;\n      const sliced = sliceBlob(realBlob, startByte, endByte);\n      if (sliced === null) {\n        return null;\n      }\n      return new FbsBlob(sliced);\n    } else {\n      const slice = new Uint8Array(\n        (this.data_ as Uint8Array).buffer,\n        startByte,\n        endByte - startByte\n      );\n      return new FbsBlob(slice, true);\n    }\n  }\n\n  static getBlob(...args: Array<string | FbsBlob>): FbsBlob | null {\n    if (isNativeBlobDefined()) {\n      const blobby: Array<Blob | Uint8Array | string> = args.map(\n        (val: string | FbsBlob): Blob | Uint8Array | string => {\n          if (val instanceof FbsBlob) {\n            return val.data_;\n          } else {\n            return val;\n          }\n        }\n      );\n      return new FbsBlob(getBlob.apply(null, blobby));\n    } else {\n      const uint8Arrays: Uint8Array[] = args.map(\n        (val: string | FbsBlob): Uint8Array => {\n          if (isString(val)) {\n            return dataFromString(StringFormat.RAW, val as string).data;\n          } else {\n            // Blobs don't exist, so this has to be a Uint8Array.\n            return (val as FbsBlob).data_ as Uint8Array;\n          }\n        }\n      );\n      let finalLength = 0;\n      uint8Arrays.forEach((array: Uint8Array): void => {\n        finalLength += array.byteLength;\n      });\n      const merged = new Uint8Array(finalLength);\n      let index = 0;\n      uint8Arrays.forEach((array: Uint8Array) => {\n        for (let i = 0; i < array.length; i++) {\n          merged[index++] = array[i];\n        }\n      });\n      return new FbsBlob(merged, true);\n    }\n  }\n\n  uploadData(): Blob | Uint8Array {\n    return this.data_;\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport { isNonArrayObject } from './type';\n\n/**\n * Returns the Object resulting from parsing the given JSON, or null if the\n * given string does not represent a JSON object.\n */\nexport function jsonObjectOrNull(\n  s: string\n): { [name: string]: unknown } | null {\n  let obj;\n  try {\n    obj = JSON.parse(s);\n  } catch (e) {\n    return null;\n  }\n  if (isNonArrayObject(obj)) {\n    return obj;\n  } else {\n    return null;\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Contains helper methods for manipulating paths.\n */\n\n/**\n * @return Null if the path is already at the root.\n */\nexport function parent(path: string): string | null {\n  if (path.length === 0) {\n    return null;\n  }\n  const index = path.lastIndexOf('/');\n  if (index === -1) {\n    return '';\n  }\n  const newPath = path.slice(0, index);\n  return newPath;\n}\n\nexport function child(path: string, childPath: string): string {\n  const canonicalChildPath = childPath\n    .split('/')\n    .filter(component => component.length > 0)\n    .join('/');\n  if (path.length === 0) {\n    return canonicalChildPath;\n  } else {\n    return path + '/' + canonicalChildPath;\n  }\n}\n\n/**\n * Returns the last component of a path.\n * '/foo/bar' -> 'bar'\n * '/foo/bar/baz/' -> 'baz/'\n * '/a' -> 'a'\n */\nexport function lastComponent(path: string): string {\n  const index = path.lastIndexOf('/', path.length - 2);\n  if (index === -1) {\n    return path;\n  } else {\n    return path.slice(index + 1);\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Documentation for the metadata format\n */\nimport { Metadata } from '../metadata';\n\nimport { jsonObjectOrNull } from './json';\nimport { Location } from './location';\nimport { lastComponent } from './path';\nimport { isString } from './type';\nimport { makeUrl, makeQueryString } from './url';\nimport { Reference } from '../reference';\nimport { FirebaseStorageImpl } from '../service';\n\nexport function noXform_<T>(metadata: Metadata, value: T): T {\n  return value;\n}\n\nclass Mapping<T> {\n  local: string;\n  writable: boolean;\n  xform: (p1: Metadata, p2?: T) => T | undefined;\n\n  constructor(\n    public server: string,\n    local?: string | null,\n    writable?: boolean,\n    xform?: ((p1: Metadata, p2?: T) => T | undefined) | null\n  ) {\n    this.local = local || server;\n    this.writable = !!writable;\n    this.xform = xform || noXform_;\n  }\n}\ntype Mappings = Array<Mapping<string> | Mapping<number>>;\n\nexport { Mappings };\n\nlet mappings_: Mappings | null = null;\n\nexport function xformPath(fullPath: string | undefined): string | undefined {\n  if (!isString(fullPath) || fullPath.length < 2) {\n    return fullPath;\n  } else {\n    return lastComponent(fullPath);\n  }\n}\n\nexport function getMappings(): Mappings {\n  if (mappings_) {\n    return mappings_;\n  }\n  const mappings: Mappings = [];\n  mappings.push(new Mapping<string>('bucket'));\n  mappings.push(new Mapping<string>('generation'));\n  mappings.push(new Mapping<string>('metageneration'));\n  mappings.push(new Mapping<string>('name', 'fullPath', true));\n\n  function mappingsXformPath(\n    _metadata: Metadata,\n    fullPath: string | undefined\n  ): string | undefined {\n    return xformPath(fullPath);\n  }\n  const nameMapping = new Mapping<string>('name');\n  nameMapping.xform = mappingsXformPath;\n  mappings.push(nameMapping);\n\n  /**\n   * Coerces the second param to a number, if it is defined.\n   */\n  function xformSize(\n    _metadata: Metadata,\n    size?: number | string\n  ): number | undefined {\n    if (size !== undefined) {\n      return Number(size);\n    } else {\n      return size;\n    }\n  }\n  const sizeMapping = new Mapping<number>('size');\n  sizeMapping.xform = xformSize;\n  mappings.push(sizeMapping);\n  mappings.push(new Mapping<number>('timeCreated'));\n  mappings.push(new Mapping<string>('updated'));\n  mappings.push(new Mapping<string>('md5Hash', null, true));\n  mappings.push(new Mapping<string>('cacheControl', null, true));\n  mappings.push(new Mapping<string>('contentDisposition', null, true));\n  mappings.push(new Mapping<string>('contentEncoding', null, true));\n  mappings.push(new Mapping<string>('contentLanguage', null, true));\n  mappings.push(new Mapping<string>('contentType', null, true));\n  mappings.push(new Mapping<string>('metadata', 'customMetadata', true));\n  mappings_ = mappings;\n  return mappings_;\n}\n\nexport function addRef(metadata: Metadata, service: FirebaseStorageImpl): void {\n  function generateRef(): Reference {\n    const bucket: string = metadata['bucket'] as string;\n    const path: string = metadata['fullPath'] as string;\n    const loc = new Location(bucket, path);\n    return service._makeStorageReference(loc);\n  }\n  Object.defineProperty(metadata, 'ref', { get: generateRef });\n}\n\nexport function fromResource(\n  service: FirebaseStorageImpl,\n  resource: { [name: string]: unknown },\n  mappings: Mappings\n): Metadata {\n  const metadata: Metadata = {} as Metadata;\n  metadata['type'] = 'file';\n  const len = mappings.length;\n  for (let i = 0; i < len; i++) {\n    const mapping = mappings[i];\n    metadata[mapping.local] = (mapping as Mapping<unknown>).xform(\n      metadata,\n      resource[mapping.server]\n    );\n  }\n  addRef(metadata, service);\n  return metadata;\n}\n\nexport function fromResourceString(\n  service: FirebaseStorageImpl,\n  resourceString: string,\n  mappings: Mappings\n): Metadata | null {\n  const obj = jsonObjectOrNull(resourceString);\n  if (obj === null) {\n    return null;\n  }\n  const resource = obj as Metadata;\n  return fromResource(service, resource, mappings);\n}\n\nexport function downloadUrlFromResourceString(\n  metadata: Metadata,\n  resourceString: string,\n  host: string,\n  protocol: string\n): string | null {\n  const obj = jsonObjectOrNull(resourceString);\n  if (obj === null) {\n    return null;\n  }\n  if (!isString(obj['downloadTokens'])) {\n    // This can happen if objects are uploaded through GCS and retrieved\n    // through list, so we don't want to throw an Error.\n    return null;\n  }\n  const tokens: string = obj['downloadTokens'] as string;\n  if (tokens.length === 0) {\n    return null;\n  }\n  const encode = encodeURIComponent;\n  const tokensList = tokens.split(',');\n  const urls = tokensList.map((token: string): string => {\n    const bucket: string = metadata['bucket'] as string;\n    const path: string = metadata['fullPath'] as string;\n    const urlPart = '/b/' + encode(bucket) + '/o/' + encode(path);\n    const base = makeUrl(urlPart, host, protocol);\n    const queryString = makeQueryString({\n      alt: 'media',\n      token\n    });\n    return base + queryString;\n  });\n  return urls[0];\n}\n\nexport function toResourceString(\n  metadata: Partial<Metadata>,\n  mappings: Mappings\n): string {\n  const resource: {\n    [prop: string]: unknown;\n  } = {};\n  const len = mappings.length;\n  for (let i = 0; i < len; i++) {\n    const mapping = mappings[i];\n    if (mapping.writable) {\n      resource[mapping.server] = metadata[mapping.local];\n    }\n  }\n  return JSON.stringify(resource);\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Documentation for the listOptions and listResult format\n */\nimport { Location } from './location';\nimport { jsonObjectOrNull } from './json';\nimport { ListResult } from '../list';\nimport { FirebaseStorageImpl } from '../service';\n\n/**\n * Represents the simplified object metadata returned by List API.\n * Other fields are filtered because list in Firebase Rules does not grant\n * the permission to read the metadata.\n */\ninterface ListMetadataResponse {\n  name: string;\n  bucket: string;\n}\n\n/**\n * Represents the JSON response of List API.\n */\ninterface ListResultResponse {\n  prefixes: string[];\n  items: ListMetadataResponse[];\n  nextPageToken?: string;\n}\n\nconst PREFIXES_KEY = 'prefixes';\nconst ITEMS_KEY = 'items';\n\nfunction fromBackendResponse(\n  service: FirebaseStorageImpl,\n  bucket: string,\n  resource: ListResultResponse\n): ListResult {\n  const listResult: ListResult = {\n    prefixes: [],\n    items: [],\n    nextPageToken: resource['nextPageToken']\n  };\n  if (resource[PREFIXES_KEY]) {\n    for (const path of resource[PREFIXES_KEY]) {\n      const pathWithoutTrailingSlash = path.replace(/\\/$/, '');\n      const reference = service._makeStorageReference(\n        new Location(bucket, pathWithoutTrailingSlash)\n      );\n      listResult.prefixes.push(reference);\n    }\n  }\n\n  if (resource[ITEMS_KEY]) {\n    for (const item of resource[ITEMS_KEY]) {\n      const reference = service._makeStorageReference(\n        new Location(bucket, item['name'])\n      );\n      listResult.items.push(reference);\n    }\n  }\n  return listResult;\n}\n\nexport function fromResponseString(\n  service: FirebaseStorageImpl,\n  bucket: string,\n  resourceString: string\n): ListResult | null {\n  const obj = jsonObjectOrNull(resourceString);\n  if (obj === null) {\n    return null;\n  }\n  const resource = obj as unknown as ListResultResponse;\n  return fromBackendResponse(service, bucket, resource);\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport { StorageError } from './error';\nimport { Headers, Connection, ConnectionType } from './connection';\n\n/**\n * Type for url params stored in RequestInfo.\n */\nexport interface UrlParams {\n  [name: string]: string | number;\n}\n\n/**\n * A function that converts a server response to the API type expected by the\n * SDK.\n *\n * @param I - the type of the backend's network response\n * @param O - the output response type used by the rest of the SDK.\n */\nexport type RequestHandler<I extends ConnectionType, O> = (\n  connection: Connection<I>,\n  response: I\n) => O;\n\n/** A function to handle an error. */\nexport type ErrorHandler = (\n  connection: Connection<ConnectionType>,\n  response: StorageError\n) => StorageError;\n\n/**\n * Contains a fully specified request.\n *\n * @param I - the type of the backend's network response.\n * @param O - the output response type used by the rest of the SDK.\n */\nexport class RequestInfo<I extends ConnectionType, O> {\n  urlParams: UrlParams = {};\n  headers: Headers = {};\n  body: Blob | string | Uint8Array | null = null;\n  errorHandler: ErrorHandler | null = null;\n\n  /**\n   * Called with the current number of bytes uploaded and total size (-1 if not\n   * computable) of the request body (i.e. used to report upload progress).\n   */\n  progressCallback: ((p1: number, p2: number) => void) | null = null;\n  successCodes: number[] = [200];\n  additionalRetryCodes: number[] = [];\n\n  constructor(\n    public url: string,\n    public method: string,\n    /**\n     * Returns the value with which to resolve the request's promise. Only called\n     * if the request is successful. Throw from this function to reject the\n     * returned Request's promise with the thrown error.\n     * Note: The XhrIo passed to this function may be reused after this callback\n     * returns. Do not keep a reference to it in any way.\n     */\n    public handler: RequestHandler<I, O>,\n    public timeout: number\n  ) {}\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Defines methods for interacting with the network.\n */\n\nimport { Metadata } from '../metadata';\nimport { ListResult } from '../list';\nimport { FbsBlob } from './blob';\nimport {\n  StorageError,\n  cannotSliceBlob,\n  unauthenticated,\n  quotaExceeded,\n  unauthorized,\n  objectNotFound,\n  serverFileWrongSize,\n  unknown,\n  unauthorizedApp\n} from './error';\nimport { Location } from './location';\nimport {\n  Mappings,\n  fromResourceString,\n  downloadUrlFromResourceString,\n  toResourceString\n} from './metadata';\nimport { fromResponseString } from './list';\nimport { RequestInfo, UrlParams } from './requestinfo';\nimport { isString } from './type';\nimport { makeUrl } from './url';\nimport { Connection, ConnectionType } from './connection';\nimport { FirebaseStorageImpl } from '../service';\n\n/**\n * Throws the UNKNOWN StorageError if cndn is false.\n */\nexport function handlerCheck(cndn: boolean): void {\n  if (!cndn) {\n    throw unknown();\n  }\n}\n\nexport function metadataHandler(\n  service: FirebaseStorageImpl,\n  mappings: Mappings\n): (p1: Connection<string>, p2: string) => Metadata {\n  function handler(xhr: Connection<string>, text: string): Metadata {\n    const metadata = fromResourceString(service, text, mappings);\n    handlerCheck(metadata !== null);\n    return metadata as Metadata;\n  }\n  return handler;\n}\n\nexport function listHandler(\n  service: FirebaseStorageImpl,\n  bucket: string\n): (p1: Connection<string>, p2: string) => ListResult {\n  function handler(xhr: Connection<string>, text: string): ListResult {\n    const listResult = fromResponseString(service, bucket, text);\n    handlerCheck(listResult !== null);\n    return listResult as ListResult;\n  }\n  return handler;\n}\n\nexport function downloadUrlHandler(\n  service: FirebaseStorageImpl,\n  mappings: Mappings\n): (p1: Connection<string>, p2: string) => string | null {\n  function handler(xhr: Connection<string>, text: string): string | null {\n    const metadata = fromResourceString(service, text, mappings);\n    handlerCheck(metadata !== null);\n    return downloadUrlFromResourceString(\n      metadata as Metadata,\n      text,\n      service.host,\n      service._protocol\n    );\n  }\n  return handler;\n}\n\nexport function sharedErrorHandler(\n  location: Location\n): (p1: Connection<ConnectionType>, p2: StorageError) => StorageError {\n  function errorHandler(\n    xhr: Connection<ConnectionType>,\n    err: StorageError\n  ): StorageError {\n    let newErr: StorageError;\n    if (xhr.getStatus() === 401) {\n      if (\n        // This exact message string is the only consistent part of the\n        // server's error response that identifies it as an App Check error.\n        xhr.getErrorText().includes('Firebase App Check token is invalid')\n      ) {\n        newErr = unauthorizedApp();\n      } else {\n        newErr = unauthenticated();\n      }\n    } else {\n      if (xhr.getStatus() === 402) {\n        newErr = quotaExceeded(location.bucket);\n      } else {\n        if (xhr.getStatus() === 403) {\n          newErr = unauthorized(location.path);\n        } else {\n          newErr = err;\n        }\n      }\n    }\n    newErr.status = xhr.getStatus();\n    newErr.serverResponse = err.serverResponse;\n    return newErr;\n  }\n  return errorHandler;\n}\n\nexport function objectErrorHandler(\n  location: Location\n): (p1: Connection<ConnectionType>, p2: StorageError) => StorageError {\n  const shared = sharedErrorHandler(location);\n\n  function errorHandler(\n    xhr: Connection<ConnectionType>,\n    err: StorageError\n  ): StorageError {\n    let newErr = shared(xhr, err);\n    if (xhr.getStatus() === 404) {\n      newErr = objectNotFound(location.path);\n    }\n    newErr.serverResponse = err.serverResponse;\n    return newErr;\n  }\n  return errorHandler;\n}\n\nexport function getMetadata(\n  service: FirebaseStorageImpl,\n  location: Location,\n  mappings: Mappings\n): RequestInfo<string, Metadata> {\n  const urlPart = location.fullServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'GET';\n  const timeout = service.maxOperationRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    metadataHandler(service, mappings),\n    timeout\n  );\n  requestInfo.errorHandler = objectErrorHandler(location);\n  return requestInfo;\n}\n\nexport function list(\n  service: FirebaseStorageImpl,\n  location: Location,\n  delimiter?: string,\n  pageToken?: string | null,\n  maxResults?: number | null\n): RequestInfo<string, ListResult> {\n  const urlParams: UrlParams = {};\n  if (location.isRoot) {\n    urlParams['prefix'] = '';\n  } else {\n    urlParams['prefix'] = location.path + '/';\n  }\n  if (delimiter && delimiter.length > 0) {\n    urlParams['delimiter'] = delimiter;\n  }\n  if (pageToken) {\n    urlParams['pageToken'] = pageToken;\n  }\n  if (maxResults) {\n    urlParams['maxResults'] = maxResults;\n  }\n  const urlPart = location.bucketOnlyServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'GET';\n  const timeout = service.maxOperationRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    listHandler(service, location.bucket),\n    timeout\n  );\n  requestInfo.urlParams = urlParams;\n  requestInfo.errorHandler = sharedErrorHandler(location);\n  return requestInfo;\n}\n\nexport function getBytes<I extends ConnectionType>(\n  service: FirebaseStorageImpl,\n  location: Location,\n  maxDownloadSizeBytes?: number\n): RequestInfo<I, I> {\n  const urlPart = location.fullServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol) + '?alt=media';\n  const method = 'GET';\n  const timeout = service.maxOperationRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    (_: Connection<I>, data: I) => data,\n    timeout\n  );\n  requestInfo.errorHandler = objectErrorHandler(location);\n  if (maxDownloadSizeBytes !== undefined) {\n    requestInfo.headers['Range'] = `bytes=0-${maxDownloadSizeBytes}`;\n    requestInfo.successCodes = [200 /* OK */, 206 /* Partial Content */];\n  }\n  return requestInfo;\n}\n\nexport function getDownloadUrl(\n  service: FirebaseStorageImpl,\n  location: Location,\n  mappings: Mappings\n): RequestInfo<string, string | null> {\n  const urlPart = location.fullServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'GET';\n  const timeout = service.maxOperationRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    downloadUrlHandler(service, mappings),\n    timeout\n  );\n  requestInfo.errorHandler = objectErrorHandler(location);\n  return requestInfo;\n}\n\nexport function updateMetadata(\n  service: FirebaseStorageImpl,\n  location: Location,\n  metadata: Partial<Metadata>,\n  mappings: Mappings\n): RequestInfo<string, Metadata> {\n  const urlPart = location.fullServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'PATCH';\n  const body = toResourceString(metadata, mappings);\n  const headers = { 'Content-Type': 'application/json; charset=utf-8' };\n  const timeout = service.maxOperationRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    metadataHandler(service, mappings),\n    timeout\n  );\n  requestInfo.headers = headers;\n  requestInfo.body = body;\n  requestInfo.errorHandler = objectErrorHandler(location);\n  return requestInfo;\n}\n\nexport function deleteObject(\n  service: FirebaseStorageImpl,\n  location: Location\n): RequestInfo<string, void> {\n  const urlPart = location.fullServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'DELETE';\n  const timeout = service.maxOperationRetryTime;\n\n  function handler(_xhr: Connection<string>, _text: string): void {}\n  const requestInfo = new RequestInfo(url, method, handler, timeout);\n  requestInfo.successCodes = [200, 204];\n  requestInfo.errorHandler = objectErrorHandler(location);\n  return requestInfo;\n}\n\nexport function determineContentType_(\n  metadata: Metadata | null,\n  blob: FbsBlob | null\n): string {\n  return (\n    (metadata && metadata['contentType']) ||\n    (blob && blob.type()) ||\n    'application/octet-stream'\n  );\n}\n\nexport function metadataForUpload_(\n  location: Location,\n  blob: FbsBlob,\n  metadata?: Metadata | null\n): Metadata {\n  const metadataClone = Object.assign({}, metadata);\n  metadataClone['fullPath'] = location.path;\n  metadataClone['size'] = blob.size();\n  if (!metadataClone['contentType']) {\n    metadataClone['contentType'] = determineContentType_(null, blob);\n  }\n  return metadataClone;\n}\n\n/**\n * Prepare RequestInfo for uploads as Content-Type: multipart.\n */\nexport function multipartUpload(\n  service: FirebaseStorageImpl,\n  location: Location,\n  mappings: Mappings,\n  blob: FbsBlob,\n  metadata?: Metadata | null\n): RequestInfo<string, Metadata> {\n  const urlPart = location.bucketOnlyServerUrl();\n  const headers: { [prop: string]: string } = {\n    'X-Goog-Upload-Protocol': 'multipart'\n  };\n\n  function genBoundary(): string {\n    let str = '';\n    for (let i = 0; i < 2; i++) {\n      str = str + Math.random().toString().slice(2);\n    }\n    return str;\n  }\n  const boundary = genBoundary();\n  headers['Content-Type'] = 'multipart/related; boundary=' + boundary;\n  const metadata_ = metadataForUpload_(location, blob, metadata);\n  const metadataString = toResourceString(metadata_, mappings);\n  const preBlobPart =\n    '--' +\n    boundary +\n    '\\r\\n' +\n    'Content-Type: application/json; charset=utf-8\\r\\n\\r\\n' +\n    metadataString +\n    '\\r\\n--' +\n    boundary +\n    '\\r\\n' +\n    'Content-Type: ' +\n    metadata_['contentType'] +\n    '\\r\\n\\r\\n';\n  const postBlobPart = '\\r\\n--' + boundary + '--';\n  const body = FbsBlob.getBlob(preBlobPart, blob, postBlobPart);\n  if (body === null) {\n    throw cannotSliceBlob();\n  }\n  const urlParams: UrlParams = { name: metadata_['fullPath']! };\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'POST';\n  const timeout = service.maxUploadRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    metadataHandler(service, mappings),\n    timeout\n  );\n  requestInfo.urlParams = urlParams;\n  requestInfo.headers = headers;\n  requestInfo.body = body.uploadData();\n  requestInfo.errorHandler = sharedErrorHandler(location);\n  return requestInfo;\n}\n\n/**\n * @param current The number of bytes that have been uploaded so far.\n * @param total The total number of bytes in the upload.\n * @param opt_finalized True if the server has finished the upload.\n * @param opt_metadata The upload metadata, should\n *     only be passed if opt_finalized is true.\n */\nexport class ResumableUploadStatus {\n  finalized: boolean;\n  metadata: Metadata | null;\n\n  constructor(\n    public current: number,\n    public total: number,\n    finalized?: boolean,\n    metadata?: Metadata | null\n  ) {\n    this.finalized = !!finalized;\n    this.metadata = metadata || null;\n  }\n}\n\nexport function checkResumeHeader_(\n  xhr: Connection<string>,\n  allowed?: string[]\n): string {\n  let status: string | null = null;\n  try {\n    status = xhr.getResponseHeader('X-Goog-Upload-Status');\n  } catch (e) {\n    handlerCheck(false);\n  }\n  const allowedStatus = allowed || ['active'];\n  handlerCheck(!!status && allowedStatus.indexOf(status) !== -1);\n  return status as string;\n}\n\nexport function createResumableUpload(\n  service: FirebaseStorageImpl,\n  location: Location,\n  mappings: Mappings,\n  blob: FbsBlob,\n  metadata?: Metadata | null\n): RequestInfo<string, string> {\n  const urlPart = location.bucketOnlyServerUrl();\n  const metadataForUpload = metadataForUpload_(location, blob, metadata);\n  const urlParams: UrlParams = { name: metadataForUpload['fullPath']! };\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'POST';\n  const headers = {\n    'X-Goog-Upload-Protocol': 'resumable',\n    'X-Goog-Upload-Command': 'start',\n    'X-Goog-Upload-Header-Content-Length': `${blob.size()}`,\n    'X-Goog-Upload-Header-Content-Type': metadataForUpload['contentType']!,\n    'Content-Type': 'application/json; charset=utf-8'\n  };\n  const body = toResourceString(metadataForUpload, mappings);\n  const timeout = service.maxUploadRetryTime;\n\n  function handler(xhr: Connection<string>): string {\n    checkResumeHeader_(xhr);\n    let url;\n    try {\n      url = xhr.getResponseHeader('X-Goog-Upload-URL');\n    } catch (e) {\n      handlerCheck(false);\n    }\n    handlerCheck(isString(url));\n    return url as string;\n  }\n  const requestInfo = new RequestInfo(url, method, handler, timeout);\n  requestInfo.urlParams = urlParams;\n  requestInfo.headers = headers;\n  requestInfo.body = body;\n  requestInfo.errorHandler = sharedErrorHandler(location);\n  return requestInfo;\n}\n\n/**\n * @param url From a call to fbs.requests.createResumableUpload.\n */\nexport function getResumableUploadStatus(\n  service: FirebaseStorageImpl,\n  location: Location,\n  url: string,\n  blob: FbsBlob\n): RequestInfo<string, ResumableUploadStatus> {\n  const headers = { 'X-Goog-Upload-Command': 'query' };\n\n  function handler(xhr: Connection<string>): ResumableUploadStatus {\n    const status = checkResumeHeader_(xhr, ['active', 'final']);\n    let sizeString: string | null = null;\n    try {\n      sizeString = xhr.getResponseHeader('X-Goog-Upload-Size-Received');\n    } catch (e) {\n      handlerCheck(false);\n    }\n\n    if (!sizeString) {\n      // null or empty string\n      handlerCheck(false);\n    }\n\n    const size = Number(sizeString);\n    handlerCheck(!isNaN(size));\n    return new ResumableUploadStatus(size, blob.size(), status === 'final');\n  }\n  const method = 'POST';\n  const timeout = service.maxUploadRetryTime;\n  const requestInfo = new RequestInfo(url, method, handler, timeout);\n  requestInfo.headers = headers;\n  requestInfo.errorHandler = sharedErrorHandler(location);\n  return requestInfo;\n}\n\n/**\n * Any uploads via the resumable upload API must transfer a number of bytes\n * that is a multiple of this number.\n */\nexport const RESUMABLE_UPLOAD_CHUNK_SIZE: number = 256 * 1024;\n\n/**\n * @param url From a call to fbs.requests.createResumableUpload.\n * @param chunkSize Number of bytes to upload.\n * @param status The previous status.\n *     If not passed or null, we start from the beginning.\n * @throws fbs.Error If the upload is already complete, the passed in status\n *     has a final size inconsistent with the blob, or the blob cannot be sliced\n *     for upload.\n */\nexport function continueResumableUpload(\n  location: Location,\n  service: FirebaseStorageImpl,\n  url: string,\n  blob: FbsBlob,\n  chunkSize: number,\n  mappings: Mappings,\n  status?: ResumableUploadStatus | null,\n  progressCallback?: ((p1: number, p2: number) => void) | null\n): RequestInfo<string, ResumableUploadStatus> {\n  // TODO(andysoto): standardize on internal asserts\n  // assert(!(opt_status && opt_status.finalized));\n  const status_ = new ResumableUploadStatus(0, 0);\n  if (status) {\n    status_.current = status.current;\n    status_.total = status.total;\n  } else {\n    status_.current = 0;\n    status_.total = blob.size();\n  }\n  if (blob.size() !== status_.total) {\n    throw serverFileWrongSize();\n  }\n  const bytesLeft = status_.total - status_.current;\n  let bytesToUpload = bytesLeft;\n  if (chunkSize > 0) {\n    bytesToUpload = Math.min(bytesToUpload, chunkSize);\n  }\n  const startByte = status_.current;\n  const endByte = startByte + bytesToUpload;\n  let uploadCommand = '';\n  if (bytesToUpload === 0) {\n    uploadCommand = 'finalize';\n  } else if (bytesLeft === bytesToUpload) {\n    uploadCommand = 'upload, finalize';\n  } else {\n    uploadCommand = 'upload';\n  }\n  const headers = {\n    'X-Goog-Upload-Command': uploadCommand,\n    'X-Goog-Upload-Offset': `${status_.current}`\n  };\n  const body = blob.slice(startByte, endByte);\n  if (body === null) {\n    throw cannotSliceBlob();\n  }\n\n  function handler(\n    xhr: Connection<string>,\n    text: string\n  ): ResumableUploadStatus {\n    // TODO(andysoto): Verify the MD5 of each uploaded range:\n    // the 'x-range-md5' header comes back with status code 308 responses.\n    // We'll only be able to bail out though, because you can't re-upload a\n    // range that you previously uploaded.\n    const uploadStatus = checkResumeHeader_(xhr, ['active', 'final']);\n    const newCurrent = status_.current + bytesToUpload;\n    const size = blob.size();\n    let metadata;\n    if (uploadStatus === 'final') {\n      metadata = metadataHandler(service, mappings)(xhr, text);\n    } else {\n      metadata = null;\n    }\n    return new ResumableUploadStatus(\n      newCurrent,\n      size,\n      uploadStatus === 'final',\n      metadata\n    );\n  }\n  const method = 'POST';\n  const timeout = service.maxUploadRetryTime;\n  const requestInfo = new RequestInfo(url, method, handler, timeout);\n  requestInfo.headers = headers;\n  requestInfo.body = body.uploadData();\n  requestInfo.progressCallback = progressCallback || null;\n  requestInfo.errorHandler = sharedErrorHandler(location);\n  return requestInfo;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Enumerations used for upload tasks.\n */\n\n/**\n * An event that is triggered on a task.\n * @internal\n */\nexport type TaskEvent = string;\n\n/**\n * An event that is triggered on a task.\n * @internal\n */\nexport const TaskEvent = {\n  /**\n   * For this event,\n   * <ul>\n   *   <li>The `next` function is triggered on progress updates and when the\n   *       task is paused/resumed with an `UploadTaskSnapshot` as the first\n   *       argument.</li>\n   *   <li>The `error` function is triggered if the upload is canceled or fails\n   *       for another reason.</li>\n   *   <li>The `complete` function is triggered if the upload completes\n   *       successfully.</li>\n   * </ul>\n   */\n  STATE_CHANGED: 'state_changed'\n};\n\n/**\n * Internal enum for task state.\n */\nexport const enum InternalTaskState {\n  RUNNING = 'running',\n  PAUSING = 'pausing',\n  PAUSED = 'paused',\n  SUCCESS = 'success',\n  CANCELING = 'canceling',\n  CANCELED = 'canceled',\n  ERROR = 'error'\n}\n\n/**\n * Represents the current state of a running upload.\n * @internal\n */\nexport type TaskState = (typeof TaskState)[keyof typeof TaskState];\n\n// type keys = keyof TaskState\n/**\n * Represents the current state of a running upload.\n * @internal\n */\nexport const TaskState = {\n  /** The task is currently transferring data. */\n  RUNNING: 'running',\n\n  /** The task was paused by the user. */\n  PAUSED: 'paused',\n\n  /** The task completed successfully. */\n  SUCCESS: 'success',\n\n  /** The task was canceled. */\n  CANCELED: 'canceled',\n\n  /** The task failed with an error. */\n  ERROR: 'error'\n} as const;\n\nexport function taskStateFromInternalTaskState(\n  state: InternalTaskState\n): TaskState {\n  switch (state) {\n    case InternalTaskState.RUNNING:\n    case InternalTaskState.PAUSING:\n    case InternalTaskState.CANCELING:\n      return TaskState.RUNNING;\n    case InternalTaskState.PAUSED:\n      return TaskState.PAUSED;\n    case InternalTaskState.SUCCESS:\n      return TaskState.SUCCESS;\n    case InternalTaskState.CANCELED:\n      return TaskState.CANCELED;\n    case InternalTaskState.ERROR:\n      return TaskState.ERROR;\n    default:\n      // TODO(andysoto): assert(false);\n      return TaskState.ERROR;\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport { isFunction } from './type';\nimport { StorageError } from './error';\n\n/**\n * Function that is called once for each value in a stream of values.\n */\nexport type NextFn<T> = (value: T) => void;\n\n/**\n * A function that is called with a `StorageError`\n * if the event stream ends due to an error.\n */\nexport type ErrorFn = (error: StorageError) => void;\n\n/**\n * A function that is called if the event stream ends normally.\n */\nexport type CompleteFn = () => void;\n\n/**\n * Unsubscribes from a stream.\n */\nexport type Unsubscribe = () => void;\n\n/**\n * An observer identical to the `Observer` defined in packages/util except the\n * error passed into the ErrorFn is specifically a `StorageError`.\n */\nexport interface StorageObserver<T> {\n  /**\n   * Function that is called once for each value in the event stream.\n   */\n  next?: NextFn<T>;\n  /**\n   * A function that is called with a `StorageError`\n   * if the event stream ends due to an error.\n   */\n  error?: ErrorFn;\n  /**\n   * A function that is called if the event stream ends normally.\n   */\n  complete?: CompleteFn;\n}\n\n/**\n * Subscribes to an event stream.\n */\nexport type Subscribe<T> = (\n  next?: NextFn<T> | StorageObserver<T>,\n  error?: ErrorFn,\n  complete?: CompleteFn\n) => Unsubscribe;\n\nexport class Observer<T> implements StorageObserver<T> {\n  next?: NextFn<T>;\n  error?: ErrorFn;\n  complete?: CompleteFn;\n\n  constructor(\n    nextOrObserver?: NextFn<T> | StorageObserver<T>,\n    error?: ErrorFn,\n    complete?: CompleteFn\n  ) {\n    const asFunctions =\n      isFunction(nextOrObserver) || error != null || complete != null;\n    if (asFunctions) {\n      this.next = nextOrObserver as NextFn<T>;\n      this.error = error ?? undefined;\n      this.complete = complete ?? undefined;\n    } else {\n      const observer = nextOrObserver as {\n        next?: NextFn<T>;\n        error?: ErrorFn;\n        complete?: CompleteFn;\n      };\n      this.next = observer.next;\n      this.error = observer.error;\n      this.complete = observer.complete;\n    }\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * Returns a function that invokes f with its arguments asynchronously as a\n * microtask, i.e. as soon as possible after the current script returns back\n * into browser code.\n */\n// eslint-disable-next-line @typescript-eslint/ban-types\nexport function async(f: Function): Function {\n  return (...argsToForward: unknown[]) => {\n    // eslint-disable-next-line @typescript-eslint/no-floating-promises\n    Promise.resolve().then(() => f(...argsToForward));\n  };\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { isCloudWorkstation } from '@firebase/util';\nimport {\n  Connection,\n  ConnectionType,\n  ErrorCode,\n  Headers\n} from '../../implementation/connection';\nimport { internalError } from '../../implementation/error';\n\n/** An override for the text-based Connection. Used in tests. */\nlet textFactoryOverride: (() => Connection<string>) | null = null;\n\n/**\n * Network layer for browsers. We use this instead of goog.net.XhrIo because\n * goog.net.XhrIo is hyuuuuge and doesn't work in React Native on Android.\n */\nabstract class XhrConnection<T extends ConnectionType>\n  implements Connection<T>\n{\n  protected xhr_: XMLHttpRequest;\n  private errorCode_: ErrorCode;\n  private sendPromise_: Promise<void>;\n  protected sent_: boolean = false;\n\n  constructor() {\n    this.xhr_ = new XMLHttpRequest();\n    this.initXhr();\n    this.errorCode_ = ErrorCode.NO_ERROR;\n    this.sendPromise_ = new Promise(resolve => {\n      this.xhr_.addEventListener('abort', () => {\n        this.errorCode_ = ErrorCode.ABORT;\n        resolve();\n      });\n      this.xhr_.addEventListener('error', () => {\n        this.errorCode_ = ErrorCode.NETWORK_ERROR;\n        resolve();\n      });\n      this.xhr_.addEventListener('load', () => {\n        resolve();\n      });\n    });\n  }\n\n  abstract initXhr(): void;\n\n  send(\n    url: string,\n    method: string,\n    isUsingEmulator: boolean,\n    body?: ArrayBufferView | Blob | string,\n    headers?: Headers\n  ): Promise<void> {\n    if (this.sent_) {\n      throw internalError('cannot .send() more than once');\n    }\n    if (isCloudWorkstation(url) && isUsingEmulator) {\n      this.xhr_.withCredentials = true;\n    }\n    this.sent_ = true;\n    this.xhr_.open(method, url, true);\n    if (headers !== undefined) {\n      for (const key in headers) {\n        if (headers.hasOwnProperty(key)) {\n          this.xhr_.setRequestHeader(key, headers[key].toString());\n        }\n      }\n    }\n    if (body !== undefined) {\n      this.xhr_.send(body);\n    } else {\n      this.xhr_.send();\n    }\n    return this.sendPromise_;\n  }\n\n  getErrorCode(): ErrorCode {\n    if (!this.sent_) {\n      throw internalError('cannot .getErrorCode() before sending');\n    }\n    return this.errorCode_;\n  }\n\n  getStatus(): number {\n    if (!this.sent_) {\n      throw internalError('cannot .getStatus() before sending');\n    }\n    try {\n      return this.xhr_.status;\n    } catch (e) {\n      return -1;\n    }\n  }\n\n  getResponse(): T {\n    if (!this.sent_) {\n      throw internalError('cannot .getResponse() before sending');\n    }\n    return this.xhr_.response;\n  }\n\n  getErrorText(): string {\n    if (!this.sent_) {\n      throw internalError('cannot .getErrorText() before sending');\n    }\n    return this.xhr_.statusText;\n  }\n\n  /** Aborts the request. */\n  abort(): void {\n    this.xhr_.abort();\n  }\n\n  getResponseHeader(header: string): string | null {\n    return this.xhr_.getResponseHeader(header);\n  }\n\n  addUploadProgressListener(listener: (p1: ProgressEvent) => void): void {\n    if (this.xhr_.upload != null) {\n      this.xhr_.upload.addEventListener('progress', listener);\n    }\n  }\n\n  removeUploadProgressListener(listener: (p1: ProgressEvent) => void): void {\n    if (this.xhr_.upload != null) {\n      this.xhr_.upload.removeEventListener('progress', listener);\n    }\n  }\n}\n\nexport class XhrTextConnection extends XhrConnection<string> {\n  initXhr(): void {\n    this.xhr_.responseType = 'text';\n  }\n}\n\nexport function newTextConnection(): Connection<string> {\n  return textFactoryOverride ? textFactoryOverride() : new XhrTextConnection();\n}\n\nexport class XhrBytesConnection extends XhrConnection<ArrayBuffer> {\n  private data_?: ArrayBuffer;\n\n  initXhr(): void {\n    this.xhr_.responseType = 'arraybuffer';\n  }\n}\n\nexport function newBytesConnection(): Connection<ArrayBuffer> {\n  return new XhrBytesConnection();\n}\n\nexport class XhrBlobConnection extends XhrConnection<Blob> {\n  initXhr(): void {\n    this.xhr_.responseType = 'blob';\n  }\n}\n\nexport function newBlobConnection(): Connection<Blob> {\n  return new XhrBlobConnection();\n}\n\nexport function newStreamConnection(): Connection<ReadableStream> {\n  throw new Error('Streams are only supported on Node');\n}\n\nexport function injectTestConnection(\n  factory: (() => Connection<string>) | null\n): void {\n  textFactoryOverride = factory;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * @fileoverview Defines types for interacting with blob transfer tasks.\n */\n\nimport { FbsBlob } from './implementation/blob';\nimport {\n  canceled,\n  StorageErrorCode,\n  StorageError,\n  retryLimitExceeded\n} from './implementation/error';\nimport {\n  InternalTaskState,\n  TaskEvent,\n  TaskState,\n  taskStateFromInternalTaskState\n} from './implementation/taskenums';\nimport { Metadata } from './metadata';\nimport {\n  Observer,\n  Subscribe,\n  Unsubscribe,\n  StorageObserver as StorageObserverInternal,\n  NextFn\n} from './implementation/observer';\nimport { Request } from './implementation/request';\nimport { UploadTaskSnapshot, StorageObserver } from './public-types';\nimport { async as fbsAsync } from './implementation/async';\nimport { Mappings, getMappings } from './implementation/metadata';\nimport {\n  createResumableUpload,\n  getResumableUploadStatus,\n  RESUMABLE_UPLOAD_CHUNK_SIZE,\n  ResumableUploadStatus,\n  continueResumableUpload,\n  getMetadata,\n  multipartUpload\n} from './implementation/requests';\nimport { Reference } from './reference';\nimport { newTextConnection } from './platform/connection';\nimport { isRetryStatusCode } from './implementation/utils';\nimport { CompleteFn } from '@firebase/util';\nimport { DEFAULT_MIN_SLEEP_TIME_MILLIS } from './implementation/constants';\n\n/**\n * Represents a blob being uploaded. Can be used to pause/resume/cancel the\n * upload and manage callbacks for various events.\n * @internal\n */\nexport class UploadTask {\n  private _ref: Reference;\n  /**\n   * The data to be uploaded.\n   */\n  _blob: FbsBlob;\n  /**\n   * Metadata related to the upload.\n   */\n  _metadata: Metadata | null;\n  private _mappings: Mappings;\n  /**\n   * Number of bytes transferred so far.\n   */\n  _transferred: number = 0;\n  private _needToFetchStatus: boolean = false;\n  private _needToFetchMetadata: boolean = false;\n  private _observers: Array<StorageObserverInternal<UploadTaskSnapshot>> = [];\n  private _resumable: boolean;\n  /**\n   * Upload state.\n   */\n  _state: InternalTaskState;\n  private _error?: StorageError = undefined;\n  private _uploadUrl?: string = undefined;\n  private _request?: Request<unknown> = undefined;\n  private _chunkMultiplier: number = 1;\n  private _errorHandler: (p1: StorageError) => void;\n  private _metadataErrorHandler: (p1: StorageError) => void;\n  private _resolve?: (p1: UploadTaskSnapshot) => void = undefined;\n  private _reject?: (p1: StorageError) => void = undefined;\n  private pendingTimeout?: ReturnType<typeof setTimeout>;\n  private _promise: Promise<UploadTaskSnapshot>;\n\n  private sleepTime: number;\n\n  private maxSleepTime: number;\n\n  isExponentialBackoffExpired(): boolean {\n    return this.sleepTime > this.maxSleepTime;\n  }\n\n  /**\n   * @param ref - The firebaseStorage.Reference object this task came\n   *     from, untyped to avoid cyclic dependencies.\n   * @param blob - The blob to upload.\n   */\n  constructor(ref: Reference, blob: FbsBlob, metadata: Metadata | null = null) {\n    this._ref = ref;\n    this._blob = blob;\n    this._metadata = metadata;\n    this._mappings = getMappings();\n    this._resumable = this._shouldDoResumable(this._blob);\n    this._state = InternalTaskState.RUNNING;\n    this._errorHandler = error => {\n      this._request = undefined;\n      this._chunkMultiplier = 1;\n      if (error._codeEquals(StorageErrorCode.CANCELED)) {\n        this._needToFetchStatus = true;\n        this.completeTransitions_();\n      } else {\n        const backoffExpired = this.isExponentialBackoffExpired();\n        if (isRetryStatusCode(error.status, [])) {\n          if (backoffExpired) {\n            error = retryLimitExceeded();\n          } else {\n            this.sleepTime = Math.max(\n              this.sleepTime * 2,\n              DEFAULT_MIN_SLEEP_TIME_MILLIS\n            );\n            this._needToFetchStatus = true;\n            this.completeTransitions_();\n            return;\n          }\n        }\n        this._error = error;\n        this._transition(InternalTaskState.ERROR);\n      }\n    };\n    this._metadataErrorHandler = error => {\n      this._request = undefined;\n      if (error._codeEquals(StorageErrorCode.CANCELED)) {\n        this.completeTransitions_();\n      } else {\n        this._error = error;\n        this._transition(InternalTaskState.ERROR);\n      }\n    };\n    this.sleepTime = 0;\n    this.maxSleepTime = this._ref.storage.maxUploadRetryTime;\n    this._promise = new Promise((resolve, reject) => {\n      this._resolve = resolve;\n      this._reject = reject;\n      this._start();\n    });\n\n    // Prevent uncaught rejections on the internal promise from bubbling out\n    // to the top level with a dummy handler.\n    this._promise.then(null, () => {});\n  }\n\n  private _makeProgressCallback(): (p1: number, p2: number) => void {\n    const sizeBefore = this._transferred;\n    return loaded => this._updateProgress(sizeBefore + loaded);\n  }\n\n  private _shouldDoResumable(blob: FbsBlob): boolean {\n    return blob.size() > 256 * 1024;\n  }\n\n  private _start(): void {\n    if (this._state !== InternalTaskState.RUNNING) {\n      // This can happen if someone pauses us in a resume callback, for example.\n      return;\n    }\n    if (this._request !== undefined) {\n      return;\n    }\n    if (this._resumable) {\n      if (this._uploadUrl === undefined) {\n        this._createResumable();\n      } else {\n        if (this._needToFetchStatus) {\n          this._fetchStatus();\n        } else {\n          if (this._needToFetchMetadata) {\n            // Happens if we miss the metadata on upload completion.\n            this._fetchMetadata();\n          } else {\n            this.pendingTimeout = setTimeout(() => {\n              this.pendingTimeout = undefined;\n              this._continueUpload();\n            }, this.sleepTime);\n          }\n        }\n      }\n    } else {\n      this._oneShotUpload();\n    }\n  }\n\n  private _resolveToken(\n    callback: (authToken: string | null, appCheckToken: string | null) => void\n  ): void {\n    // eslint-disable-next-line @typescript-eslint/no-floating-promises\n    Promise.all([\n      this._ref.storage._getAuthToken(),\n      this._ref.storage._getAppCheckToken()\n    ]).then(([authToken, appCheckToken]) => {\n      switch (this._state) {\n        case InternalTaskState.RUNNING:\n          callback(authToken, appCheckToken);\n          break;\n        case InternalTaskState.CANCELING:\n          this._transition(InternalTaskState.CANCELED);\n          break;\n        case InternalTaskState.PAUSING:\n          this._transition(InternalTaskState.PAUSED);\n          break;\n        default:\n      }\n    });\n  }\n\n  // TODO(andysoto): assert false\n\n  private _createResumable(): void {\n    this._resolveToken((authToken, appCheckToken) => {\n      const requestInfo = createResumableUpload(\n        this._ref.storage,\n        this._ref._location,\n        this._mappings,\n        this._blob,\n        this._metadata\n      );\n      const createRequest = this._ref.storage._makeRequest(\n        requestInfo,\n        newTextConnection,\n        authToken,\n        appCheckToken\n      );\n      this._request = createRequest;\n      createRequest.getPromise().then((url: string) => {\n        this._request = undefined;\n        this._uploadUrl = url;\n        this._needToFetchStatus = false;\n        this.completeTransitions_();\n      }, this._errorHandler);\n    });\n  }\n\n  private _fetchStatus(): void {\n    // TODO(andysoto): assert(this.uploadUrl_ !== null);\n    const url = this._uploadUrl as string;\n    this._resolveToken((authToken, appCheckToken) => {\n      const requestInfo = getResumableUploadStatus(\n        this._ref.storage,\n        this._ref._location,\n        url,\n        this._blob\n      );\n      const statusRequest = this._ref.storage._makeRequest(\n        requestInfo,\n        newTextConnection,\n        authToken,\n        appCheckToken\n      );\n      this._request = statusRequest;\n      statusRequest.getPromise().then(status => {\n        status = status as ResumableUploadStatus;\n        this._request = undefined;\n        this._updateProgress(status.current);\n        this._needToFetchStatus = false;\n        if (status.finalized) {\n          this._needToFetchMetadata = true;\n        }\n        this.completeTransitions_();\n      }, this._errorHandler);\n    });\n  }\n\n  private _continueUpload(): void {\n    const chunkSize = RESUMABLE_UPLOAD_CHUNK_SIZE * this._chunkMultiplier;\n    const status = new ResumableUploadStatus(\n      this._transferred,\n      this._blob.size()\n    );\n\n    // TODO(andysoto): assert(this.uploadUrl_ !== null);\n    const url = this._uploadUrl as string;\n    this._resolveToken((authToken, appCheckToken) => {\n      let requestInfo;\n      try {\n        requestInfo = continueResumableUpload(\n          this._ref._location,\n          this._ref.storage,\n          url,\n          this._blob,\n          chunkSize,\n          this._mappings,\n          status,\n          this._makeProgressCallback()\n        );\n      } catch (e) {\n        this._error = e as StorageError;\n        this._transition(InternalTaskState.ERROR);\n        return;\n      }\n      const uploadRequest = this._ref.storage._makeRequest(\n        requestInfo,\n        newTextConnection,\n        authToken,\n        appCheckToken,\n        /*retry=*/ false // Upload requests should not be retried as each retry should be preceded by another query request. Which is handled in this file.\n      );\n      this._request = uploadRequest;\n      uploadRequest.getPromise().then((newStatus: ResumableUploadStatus) => {\n        this._increaseMultiplier();\n        this._request = undefined;\n        this._updateProgress(newStatus.current);\n        if (newStatus.finalized) {\n          this._metadata = newStatus.metadata;\n          this._transition(InternalTaskState.SUCCESS);\n        } else {\n          this.completeTransitions_();\n        }\n      }, this._errorHandler);\n    });\n  }\n\n  private _increaseMultiplier(): void {\n    const currentSize = RESUMABLE_UPLOAD_CHUNK_SIZE * this._chunkMultiplier;\n\n    // Max chunk size is 32M.\n    if (currentSize * 2 < 32 * 1024 * 1024) {\n      this._chunkMultiplier *= 2;\n    }\n  }\n\n  private _fetchMetadata(): void {\n    this._resolveToken((authToken, appCheckToken) => {\n      const requestInfo = getMetadata(\n        this._ref.storage,\n        this._ref._location,\n        this._mappings\n      );\n      const metadataRequest = this._ref.storage._makeRequest(\n        requestInfo,\n        newTextConnection,\n        authToken,\n        appCheckToken\n      );\n      this._request = metadataRequest;\n      metadataRequest.getPromise().then(metadata => {\n        this._request = undefined;\n        this._metadata = metadata;\n        this._transition(InternalTaskState.SUCCESS);\n      }, this._metadataErrorHandler);\n    });\n  }\n\n  private _oneShotUpload(): void {\n    this._resolveToken((authToken, appCheckToken) => {\n      const requestInfo = multipartUpload(\n        this._ref.storage,\n        this._ref._location,\n        this._mappings,\n        this._blob,\n        this._metadata\n      );\n      const multipartRequest = this._ref.storage._makeRequest(\n        requestInfo,\n        newTextConnection,\n        authToken,\n        appCheckToken\n      );\n      this._request = multipartRequest;\n      multipartRequest.getPromise().then(metadata => {\n        this._request = undefined;\n        this._metadata = metadata;\n        this._updateProgress(this._blob.size());\n        this._transition(InternalTaskState.SUCCESS);\n      }, this._errorHandler);\n    });\n  }\n\n  private _updateProgress(transferred: number): void {\n    const old = this._transferred;\n    this._transferred = transferred;\n\n    // A progress update can make the \"transferred\" value smaller (e.g. a\n    // partial upload not completed by server, after which the \"transferred\"\n    // value may reset to the value at the beginning of the request).\n    if (this._transferred !== old) {\n      this._notifyObservers();\n    }\n  }\n\n  private _transition(state: InternalTaskState): void {\n    if (this._state === state) {\n      return;\n    }\n    switch (state) {\n      case InternalTaskState.CANCELING:\n      case InternalTaskState.PAUSING:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.RUNNING ||\n        //        this.state_ === InternalTaskState.PAUSING);\n        this._state = state;\n        if (this._request !== undefined) {\n          this._request.cancel();\n        } else if (this.pendingTimeout) {\n          clearTimeout(this.pendingTimeout);\n          this.pendingTimeout = undefined;\n          this.completeTransitions_();\n        }\n        break;\n      case InternalTaskState.RUNNING:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.PAUSED ||\n        //        this.state_ === InternalTaskState.PAUSING);\n        const wasPaused = this._state === InternalTaskState.PAUSED;\n        this._state = state;\n        if (wasPaused) {\n          this._notifyObservers();\n          this._start();\n        }\n        break;\n      case InternalTaskState.PAUSED:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.PAUSING);\n        this._state = state;\n        this._notifyObservers();\n        break;\n      case InternalTaskState.CANCELED:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.PAUSED ||\n        //        this.state_ === InternalTaskState.CANCELING);\n        this._error = canceled();\n        this._state = state;\n        this._notifyObservers();\n        break;\n      case InternalTaskState.ERROR:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.RUNNING ||\n        //        this.state_ === InternalTaskState.PAUSING ||\n        //        this.state_ === InternalTaskState.CANCELING);\n        this._state = state;\n        this._notifyObservers();\n        break;\n      case InternalTaskState.SUCCESS:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.RUNNING ||\n        //        this.state_ === InternalTaskState.PAUSING ||\n        //        this.state_ === InternalTaskState.CANCELING);\n        this._state = state;\n        this._notifyObservers();\n        break;\n      default: // Ignore\n    }\n  }\n\n  private completeTransitions_(): void {\n    switch (this._state) {\n      case InternalTaskState.PAUSING:\n        this._transition(InternalTaskState.PAUSED);\n        break;\n      case InternalTaskState.CANCELING:\n        this._transition(InternalTaskState.CANCELED);\n        break;\n      case InternalTaskState.RUNNING:\n        this._start();\n        break;\n      default:\n        // TODO(andysoto): assert(false);\n        break;\n    }\n  }\n\n  /**\n   * A snapshot of the current task state.\n   */\n  get snapshot(): UploadTaskSnapshot {\n    const externalState = taskStateFromInternalTaskState(this._state);\n    return {\n      bytesTransferred: this._transferred,\n      totalBytes: this._blob.size(),\n      state: externalState,\n      metadata: this._metadata!,\n      task: this,\n      ref: this._ref\n    };\n  }\n\n  /**\n   * Adds a callback for an event.\n   * @param type - The type of event to listen for.\n   * @param nextOrObserver -\n   *     The `next` function, which gets called for each item in\n   *     the event stream, or an observer object with some or all of these three\n   *     properties (`next`, `error`, `complete`).\n   * @param error - A function that gets called with a `StorageError`\n   *     if the event stream ends due to an error.\n   * @param completed - A function that gets called if the\n   *     event stream ends normally.\n   * @returns\n   *     If only the event argument is passed, returns a function you can use to\n   *     add callbacks (see the examples above). If more than just the event\n   *     argument is passed, returns a function you can call to unregister the\n   *     callbacks.\n   */\n  on(\n    type: TaskEvent,\n    nextOrObserver?:\n      | StorageObserver<UploadTaskSnapshot>\n      | null\n      | ((snapshot: UploadTaskSnapshot) => unknown),\n    error?: ((a: StorageError) => unknown) | null,\n    completed?: CompleteFn | null\n  ): Unsubscribe | Subscribe<UploadTaskSnapshot> {\n    // Note: `type` isn't being used. Its type is also incorrect. TaskEvent should not be a string.\n    const observer = new Observer(\n      (nextOrObserver as\n        | StorageObserverInternal<UploadTaskSnapshot>\n        | NextFn<UploadTaskSnapshot>) || undefined,\n      error || undefined,\n      completed || undefined\n    );\n    this._addObserver(observer);\n    return () => {\n      this._removeObserver(observer);\n    };\n  }\n\n  /**\n   * This object behaves like a Promise, and resolves with its snapshot data\n   * when the upload completes.\n   * @param onFulfilled - The fulfillment callback. Promise chaining works as normal.\n   * @param onRejected - The rejection callback.\n   */\n  then<U>(\n    onFulfilled?: ((value: UploadTaskSnapshot) => U | Promise<U>) | null,\n    onRejected?: ((error: StorageError) => U | Promise<U>) | null\n  ): Promise<U> {\n    // These casts are needed so that TypeScript can infer the types of the\n    // resulting Promise.\n    return this._promise.then<U>(\n      onFulfilled as (value: UploadTaskSnapshot) => U | Promise<U>,\n      onRejected as ((error: unknown) => Promise<never>) | null\n    );\n  }\n\n  /**\n   * Equivalent to calling `then(null, onRejected)`.\n   */\n  catch<T>(onRejected: (p1: StorageError) => T | Promise<T>): Promise<T> {\n    return this.then(null, onRejected);\n  }\n\n  /**\n   * Adds the given observer.\n   */\n  private _addObserver(observer: Observer<UploadTaskSnapshot>): void {\n    this._observers.push(observer);\n    this._notifyObserver(observer);\n  }\n\n  /**\n   * Removes the given observer.\n   */\n  private _removeObserver(observer: Observer<UploadTaskSnapshot>): void {\n    const i = this._observers.indexOf(observer);\n    if (i !== -1) {\n      this._observers.splice(i, 1);\n    }\n  }\n\n  private _notifyObservers(): void {\n    this._finishPromise();\n    const observers = this._observers.slice();\n    observers.forEach(observer => {\n      this._notifyObserver(observer);\n    });\n  }\n\n  private _finishPromise(): void {\n    if (this._resolve !== undefined) {\n      let triggered = true;\n      switch (taskStateFromInternalTaskState(this._state)) {\n        case TaskState.SUCCESS:\n          fbsAsync(this._resolve.bind(null, this.snapshot))();\n          break;\n        case TaskState.CANCELED:\n        case TaskState.ERROR:\n          const toCall = this._reject as (p1: StorageError) => void;\n          fbsAsync(toCall.bind(null, this._error as StorageError))();\n          break;\n        default:\n          triggered = false;\n          break;\n      }\n      if (triggered) {\n        this._resolve = undefined;\n        this._reject = undefined;\n      }\n    }\n  }\n\n  private _notifyObserver(observer: Observer<UploadTaskSnapshot>): void {\n    const externalState = taskStateFromInternalTaskState(this._state);\n    switch (externalState) {\n      case TaskState.RUNNING:\n      case TaskState.PAUSED:\n        if (observer.next) {\n          fbsAsync(observer.next.bind(observer, this.snapshot))();\n        }\n        break;\n      case TaskState.SUCCESS:\n        if (observer.complete) {\n          fbsAsync(observer.complete.bind(observer))();\n        }\n        break;\n      case TaskState.CANCELED:\n      case TaskState.ERROR:\n        if (observer.error) {\n          fbsAsync(\n            observer.error.bind(observer, this._error as StorageError)\n          )();\n        }\n        break;\n      default:\n        // TODO(andysoto): assert(false);\n        if (observer.error) {\n          fbsAsync(\n            observer.error.bind(observer, this._error as StorageError)\n          )();\n        }\n    }\n  }\n\n  /**\n   * Resumes a paused task. Has no effect on a currently running or failed task.\n   * @returns True if the operation took effect, false if ignored.\n   */\n  resume(): boolean {\n    const valid =\n      this._state === InternalTaskState.PAUSED ||\n      this._state === InternalTaskState.PAUSING;\n    if (valid) {\n      this._transition(InternalTaskState.RUNNING);\n    }\n    return valid;\n  }\n\n  /**\n   * Pauses a currently running task. Has no effect on a paused or failed task.\n   * @returns True if the operation took effect, false if ignored.\n   */\n  pause(): boolean {\n    const valid = this._state === InternalTaskState.RUNNING;\n    if (valid) {\n      this._transition(InternalTaskState.PAUSING);\n    }\n    return valid;\n  }\n\n  /**\n   * Cancels a currently running or paused task. Has no effect on a complete or\n   * failed task.\n   * @returns True if the operation took effect, false if ignored.\n   */\n  cancel(): boolean {\n    const valid =\n      this._state === InternalTaskState.RUNNING ||\n      this._state === InternalTaskState.PAUSING;\n    if (valid) {\n      this._transition(InternalTaskState.CANCELING);\n    }\n    return valid;\n  }\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Defines the Firebase StorageReference class.\n */\n\nimport { FbsBlob } from './implementation/blob';\nimport { Location } from './implementation/location';\nimport { getMappings } from './implementation/metadata';\nimport { child, lastComponent, parent } from './implementation/path';\nimport {\n  deleteObject as requestsDeleteObject,\n  getBytes,\n  getDownloadUrl as requestsGetDownloadUrl,\n  getMetadata as requestsGetMetadata,\n  list as requestsList,\n  multipartUpload,\n  updateMetadata as requestsUpdateMetadata\n} from './implementation/requests';\nimport { ListOptions, UploadResult } from './public-types';\nimport { dataFromString, StringFormat } from './implementation/string';\nimport { Metadata } from './metadata';\nimport { FirebaseStorageImpl } from './service';\nimport { ListResult } from './list';\nimport { UploadTask } from './task';\nimport { invalidRootOperation, noDownloadURL } from './implementation/error';\nimport { validateNumber } from './implementation/type';\nimport {\n  newBlobConnection,\n  newBytesConnection,\n  newStreamConnection,\n  newTextConnection\n} from './platform/connection';\nimport { RequestInfo } from './implementation/requestinfo';\n\n/**\n * Provides methods to interact with a bucket in the Firebase Storage service.\n * @internal\n * @param _location - An fbs.location, or the URL at\n *     which to base this object, in one of the following forms:\n *         gs://<bucket>/<object-path>\n *         http[s]://firebasestorage.googleapis.com/\n *                     <api-version>/b/<bucket>/o/<object-path>\n *     Any query or fragment strings will be ignored in the http[s]\n *     format. If no value is passed, the storage object will use a URL based on\n *     the project ID of the base firebase.App instance.\n */\nexport class Reference {\n  _location: Location;\n\n  constructor(\n    private _service: FirebaseStorageImpl,\n    location: string | Location\n  ) {\n    if (location instanceof Location) {\n      this._location = location;\n    } else {\n      this._location = Location.makeFromUrl(location, _service.host);\n    }\n  }\n\n  /**\n   * Returns the URL for the bucket and path this object references,\n   *     in the form gs://<bucket>/<object-path>\n   * @override\n   */\n  toString(): string {\n    return 'gs://' + this._location.bucket + '/' + this._location.path;\n  }\n\n  protected _newRef(\n    service: FirebaseStorageImpl,\n    location: Location\n  ): Reference {\n    return new Reference(service, location);\n  }\n\n  /**\n   * A reference to the root of this object's bucket.\n   */\n  get root(): Reference {\n    const location = new Location(this._location.bucket, '');\n    return this._newRef(this._service, location);\n  }\n\n  /**\n   * The name of the bucket containing this reference's object.\n   */\n  get bucket(): string {\n    return this._location.bucket;\n  }\n\n  /**\n   * The full path of this object.\n   */\n  get fullPath(): string {\n    return this._location.path;\n  }\n\n  /**\n   * The short name of this object, which is the last component of the full path.\n   * For example, if fullPath is 'full/path/image.png', name is 'image.png'.\n   */\n  get name(): string {\n    return lastComponent(this._location.path);\n  }\n\n  /**\n   * The `StorageService` instance this `StorageReference` is associated with.\n   */\n  get storage(): FirebaseStorageImpl {\n    return this._service;\n  }\n\n  /**\n   * A `StorageReference` pointing to the parent location of this `StorageReference`, or null if\n   * this reference is the root.\n   */\n  get parent(): Reference | null {\n    const newPath = parent(this._location.path);\n    if (newPath === null) {\n      return null;\n    }\n    const location = new Location(this._location.bucket, newPath);\n    return new Reference(this._service, location);\n  }\n\n  /**\n   * Utility function to throw an error in methods that do not accept a root reference.\n   */\n  _throwIfRoot(name: string): void {\n    if (this._location.path === '') {\n      throw invalidRootOperation(name);\n    }\n  }\n}\n\n/**\n * Download the bytes at the object's location.\n * @returns A Promise containing the downloaded bytes.\n */\nexport function getBytesInternal(\n  ref: Reference,\n  maxDownloadSizeBytes?: number\n): Promise<ArrayBuffer> {\n  ref._throwIfRoot('getBytes');\n  const requestInfo = getBytes(\n    ref.storage,\n    ref._location,\n    maxDownloadSizeBytes\n  );\n  return ref.storage\n    .makeRequestWithTokens(requestInfo, newBytesConnection)\n    .then(bytes =>\n      maxDownloadSizeBytes !== undefined\n        ? // GCS may not honor the Range header for small files\n          (bytes as ArrayBuffer).slice(0, maxDownloadSizeBytes)\n        : (bytes as ArrayBuffer)\n    );\n}\n\n/**\n * Download the bytes at the object's location.\n * @returns A Promise containing the downloaded blob.\n */\nexport function getBlobInternal(\n  ref: Reference,\n  maxDownloadSizeBytes?: number\n): Promise<Blob> {\n  ref._throwIfRoot('getBlob');\n  const requestInfo = getBytes(\n    ref.storage,\n    ref._location,\n    maxDownloadSizeBytes\n  );\n  return ref.storage\n    .makeRequestWithTokens(requestInfo, newBlobConnection)\n    .then(blob =>\n      maxDownloadSizeBytes !== undefined\n        ? // GCS may not honor the Range header for small files\n          (blob as Blob).slice(0, maxDownloadSizeBytes)\n        : (blob as Blob)\n    );\n}\n\n/** Stream the bytes at the object's location. */\nexport function getStreamInternal(\n  ref: Reference,\n  maxDownloadSizeBytes?: number\n): ReadableStream {\n  ref._throwIfRoot('getStream');\n  const requestInfo: RequestInfo<ReadableStream, ReadableStream> = getBytes(\n    ref.storage,\n    ref._location,\n    maxDownloadSizeBytes\n  );\n\n  // Transforms the stream so that only `maxDownloadSizeBytes` bytes are piped to the result\n  const newMaxSizeTransform = (n: number): Transformer => {\n    let missingBytes = n;\n    return {\n      transform(chunk, controller: TransformStreamDefaultController) {\n        // GCS may not honor the Range header for small files\n        if (chunk.length < missingBytes) {\n          controller.enqueue(chunk);\n          missingBytes -= chunk.length;\n        } else {\n          controller.enqueue(chunk.slice(0, missingBytes));\n          controller.terminate();\n        }\n      }\n    };\n  };\n\n  const result =\n    maxDownloadSizeBytes !== undefined\n      ? new TransformStream(newMaxSizeTransform(maxDownloadSizeBytes))\n      : new TransformStream(); // The default transformer forwards all chunks to its readable side\n\n  ref.storage\n    .makeRequestWithTokens(requestInfo, newStreamConnection)\n    .then(readableStream => readableStream.pipeThrough(result))\n    .catch(err => result.writable.abort(err));\n\n  return result.readable;\n}\n\n/**\n * Uploads data to this object's location.\n * The upload is not resumable.\n *\n * @param ref - StorageReference where data should be uploaded.\n * @param data - The data to upload.\n * @param metadata - Metadata for the newly uploaded data.\n * @returns A Promise containing an UploadResult\n */\nexport function uploadBytes(\n  ref: Reference,\n  data: Blob | Uint8Array | ArrayBuffer,\n  metadata?: Metadata\n): Promise<UploadResult> {\n  ref._throwIfRoot('uploadBytes');\n  const requestInfo = multipartUpload(\n    ref.storage,\n    ref._location,\n    getMappings(),\n    new FbsBlob(data, true),\n    metadata\n  );\n  return ref.storage\n    .makeRequestWithTokens(requestInfo, newTextConnection)\n    .then(finalMetadata => {\n      return {\n        metadata: finalMetadata,\n        ref\n      };\n    });\n}\n\n/**\n * Uploads data to this object's location.\n * The upload can be paused and resumed, and exposes progress updates.\n * @public\n * @param ref - StorageReference where data should be uploaded.\n * @param data - The data to upload.\n * @param metadata - Metadata for the newly uploaded data.\n * @returns An UploadTask\n */\nexport function uploadBytesResumable(\n  ref: Reference,\n  data: Blob | Uint8Array | ArrayBuffer,\n  metadata?: Metadata\n): UploadTask {\n  ref._throwIfRoot('uploadBytesResumable');\n  return new UploadTask(ref, new FbsBlob(data), metadata);\n}\n\n/**\n * Uploads a string to this object's location.\n * The upload is not resumable.\n * @public\n * @param ref - StorageReference where string should be uploaded.\n * @param value - The string to upload.\n * @param format - The format of the string to upload.\n * @param metadata - Metadata for the newly uploaded string.\n * @returns A Promise containing an UploadResult\n */\nexport function uploadString(\n  ref: Reference,\n  value: string,\n  format: StringFormat = StringFormat.RAW,\n  metadata?: Metadata\n): Promise<UploadResult> {\n  ref._throwIfRoot('uploadString');\n  const data = dataFromString(format, value);\n  const metadataClone = { ...metadata } as Metadata;\n  if (metadataClone['contentType'] == null && data.contentType != null) {\n    metadataClone['contentType'] = data.contentType!;\n  }\n  return uploadBytes(ref, data.data, metadataClone);\n}\n\n/**\n * List all items (files) and prefixes (folders) under this storage reference.\n *\n * This is a helper method for calling list() repeatedly until there are\n * no more results. The default pagination size is 1000.\n *\n * Note: The results may not be consistent if objects are changed while this\n * operation is running.\n *\n * Warning: listAll may potentially consume too many resources if there are\n * too many results.\n * @public\n * @param ref - StorageReference to get list from.\n *\n * @returns A Promise that resolves with all the items and prefixes under\n *      the current storage reference. `prefixes` contains references to\n *      sub-directories and `items` contains references to objects in this\n *      folder. `nextPageToken` is never returned.\n */\nexport function listAll(ref: Reference): Promise<ListResult> {\n  const accumulator: ListResult = {\n    prefixes: [],\n    items: []\n  };\n  return listAllHelper(ref, accumulator).then(() => accumulator);\n}\n\n/**\n * Separated from listAll because async functions can't use \"arguments\".\n * @param ref\n * @param accumulator\n * @param pageToken\n */\nasync function listAllHelper(\n  ref: Reference,\n  accumulator: ListResult,\n  pageToken?: string\n): Promise<void> {\n  const opt: ListOptions = {\n    // maxResults is 1000 by default.\n    pageToken\n  };\n  const nextPage = await list(ref, opt);\n  accumulator.prefixes.push(...nextPage.prefixes);\n  accumulator.items.push(...nextPage.items);\n  if (nextPage.nextPageToken != null) {\n    await listAllHelper(ref, accumulator, nextPage.nextPageToken);\n  }\n}\n\n/**\n * List items (files) and prefixes (folders) under this storage reference.\n *\n * List API is only available for Firebase Rules Version 2.\n *\n * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'\n * delimited folder structure.\n * Refer to GCS's List API if you want to learn more.\n *\n * To adhere to Firebase Rules's Semantics, Firebase Storage does not\n * support objects whose paths end with \"/\" or contain two consecutive\n * \"/\"s. Firebase Storage List API will filter these unsupported objects.\n * list() may fail if there are too many unsupported objects in the bucket.\n * @public\n *\n * @param ref - StorageReference to get list from.\n * @param options - See ListOptions for details.\n * @returns A Promise that resolves with the items and prefixes.\n *      `prefixes` contains references to sub-folders and `items`\n *      contains references to objects in this folder. `nextPageToken`\n *      can be used to get the rest of the results.\n */\nexport function list(\n  ref: Reference,\n  options?: ListOptions | null\n): Promise<ListResult> {\n  if (options != null) {\n    if (typeof options.maxResults === 'number') {\n      validateNumber(\n        'options.maxResults',\n        /* minValue= */ 1,\n        /* maxValue= */ 1000,\n        options.maxResults\n      );\n    }\n  }\n  const op = options || {};\n  const requestInfo = requestsList(\n    ref.storage,\n    ref._location,\n    /*delimiter= */ '/',\n    op.pageToken,\n    op.maxResults\n  );\n  return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);\n}\n\n/**\n * A `Promise` that resolves with the metadata for this object. If this\n * object doesn't exist or metadata cannot be retrieved, the promise is\n * rejected.\n * @public\n * @param ref - StorageReference to get metadata from.\n */\nexport function getMetadata(ref: Reference): Promise<Metadata> {\n  ref._throwIfRoot('getMetadata');\n  const requestInfo = requestsGetMetadata(\n    ref.storage,\n    ref._location,\n    getMappings()\n  );\n  return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);\n}\n\n/**\n * Updates the metadata for this object.\n * @public\n * @param ref - StorageReference to update metadata for.\n * @param metadata - The new metadata for the object.\n *     Only values that have been explicitly set will be changed. Explicitly\n *     setting a value to null will remove the metadata.\n * @returns A `Promise` that resolves\n *     with the new metadata for this object.\n *     See `firebaseStorage.Reference.prototype.getMetadata`\n */\nexport function updateMetadata(\n  ref: Reference,\n  metadata: Partial<Metadata>\n): Promise<Metadata> {\n  ref._throwIfRoot('updateMetadata');\n  const requestInfo = requestsUpdateMetadata(\n    ref.storage,\n    ref._location,\n    metadata,\n    getMappings()\n  );\n  return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);\n}\n\n/**\n * Returns the download URL for the given Reference.\n * @public\n * @returns A `Promise` that resolves with the download\n *     URL for this object.\n */\nexport function getDownloadURL(ref: Reference): Promise<string> {\n  ref._throwIfRoot('getDownloadURL');\n  const requestInfo = requestsGetDownloadUrl(\n    ref.storage,\n    ref._location,\n    getMappings()\n  );\n  return ref.storage\n    .makeRequestWithTokens(requestInfo, newTextConnection)\n    .then(url => {\n      if (url === null) {\n        throw noDownloadURL();\n      }\n      return url;\n    });\n}\n\n/**\n * Deletes the object at this location.\n * @public\n * @param ref - StorageReference for object to delete.\n * @returns A `Promise` that resolves if the deletion succeeds.\n */\nexport function deleteObject(ref: Reference): Promise<void> {\n  ref._throwIfRoot('deleteObject');\n  const requestInfo = requestsDeleteObject(ref.storage, ref._location);\n  return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);\n}\n\n/**\n * Returns reference for object obtained by appending `childPath` to `ref`.\n *\n * @param ref - StorageReference to get child of.\n * @param childPath - Child path from provided ref.\n * @returns A reference to the object obtained by\n * appending childPath, removing any duplicate, beginning, or trailing\n * slashes.\n *\n */\nexport function _getChild(ref: Reference, childPath: string): Reference {\n  const newPath = child(ref._location.path, childPath);\n  const location = new Location(ref._location.bucket, newPath);\n  return new Reference(ref.storage, location);\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { Location } from './implementation/location';\nimport { FailRequest } from './implementation/failrequest';\nimport { Request, makeRequest } from './implementation/request';\nimport { RequestInfo } from './implementation/requestinfo';\nimport { Reference, _getChild } from './reference';\nimport { Provider } from '@firebase/component';\nimport { FirebaseAuthInternalName } from '@firebase/auth-interop-types';\nimport { AppCheckInternalComponentName } from '@firebase/app-check-interop-types';\n// eslint-disable-next-line import/no-extraneous-dependencies\nimport {\n  FirebaseApp,\n  FirebaseOptions,\n  _isFirebaseServerApp\n} from '@firebase/app';\nimport {\n  CONFIG_STORAGE_BUCKET_KEY,\n  DEFAULT_HOST,\n  DEFAULT_MAX_OPERATION_RETRY_TIME,\n  DEFAULT_MAX_UPLOAD_RETRY_TIME\n} from './implementation/constants';\nimport {\n  invalidArgument,\n  appDeleted,\n  noDefaultBucket\n} from './implementation/error';\nimport { validateNumber } from './implementation/type';\nimport { FirebaseStorage } from './public-types';\nimport {\n  createMockUserToken,\n  EmulatorMockTokenOptions,\n  isCloudWorkstation,\n  pingServer,\n  updateEmulatorBanner\n} from '@firebase/util';\nimport { Connection, ConnectionType } from './implementation/connection';\n\nexport function isUrl(path?: string): boolean {\n  return /^[A-Za-z]+:\\/\\//.test(path as string);\n}\n\n/**\n * Returns a firebaseStorage.Reference for the given url.\n */\nfunction refFromURL(service: FirebaseStorageImpl, url: string): Reference {\n  return new Reference(service, url);\n}\n\n/**\n * Returns a firebaseStorage.Reference for the given path in the default\n * bucket.\n */\nfunction refFromPath(\n  ref: FirebaseStorageImpl | Reference,\n  path?: string\n): Reference {\n  if (ref instanceof FirebaseStorageImpl) {\n    const service = ref;\n    if (service._bucket == null) {\n      throw noDefaultBucket();\n    }\n    const reference = new Reference(service, service._bucket!);\n    if (path != null) {\n      return refFromPath(reference, path);\n    } else {\n      return reference;\n    }\n  } else {\n    // ref is a Reference\n    if (path !== undefined) {\n      return _getChild(ref, path);\n    } else {\n      return ref;\n    }\n  }\n}\n\n/**\n * Returns a storage Reference for the given url.\n * @param storage - `Storage` instance.\n * @param url - URL. If empty, returns root reference.\n * @public\n */\nexport function ref(storage: FirebaseStorageImpl, url?: string): Reference;\n/**\n * Returns a storage Reference for the given path in the\n * default bucket.\n * @param storageOrRef - `Storage` service or storage `Reference`.\n * @param pathOrUrlStorage - path. If empty, returns root reference (if Storage\n * instance provided) or returns same reference (if Reference provided).\n * @public\n */\nexport function ref(\n  storageOrRef: FirebaseStorageImpl | Reference,\n  path?: string\n): Reference;\nexport function ref(\n  serviceOrRef: FirebaseStorageImpl | Reference,\n  pathOrUrl?: string\n): Reference | null {\n  if (pathOrUrl && isUrl(pathOrUrl)) {\n    if (serviceOrRef instanceof FirebaseStorageImpl) {\n      return refFromURL(serviceOrRef, pathOrUrl);\n    } else {\n      throw invalidArgument(\n        'To use ref(service, url), the first argument must be a Storage instance.'\n      );\n    }\n  } else {\n    return refFromPath(serviceOrRef, pathOrUrl);\n  }\n}\n\nfunction extractBucket(\n  host: string,\n  config?: FirebaseOptions\n): Location | null {\n  const bucketString = config?.[CONFIG_STORAGE_BUCKET_KEY];\n  if (bucketString == null) {\n    return null;\n  }\n  return Location.makeFromBucketSpec(bucketString, host);\n}\n\nexport function connectStorageEmulator(\n  storage: FirebaseStorageImpl,\n  host: string,\n  port: number,\n  options: {\n    mockUserToken?: EmulatorMockTokenOptions | string;\n  } = {}\n): void {\n  storage.host = `${host}:${port}`;\n  const useSsl = isCloudWorkstation(host);\n  // Workaround to get cookies in Firebase Studio\n  if (useSsl) {\n    void pingServer(`https://${storage.host}/b`);\n    updateEmulatorBanner('Storage', true);\n  }\n  storage._isUsingEmulator = true;\n  storage._protocol = useSsl ? 'https' : 'http';\n  const { mockUserToken } = options;\n  if (mockUserToken) {\n    storage._overrideAuthToken =\n      typeof mockUserToken === 'string'\n        ? mockUserToken\n        : createMockUserToken(mockUserToken, storage.app.options.projectId);\n  }\n}\n\n/**\n * A service that provides Firebase Storage Reference instances.\n * @param opt_url - gs:// url to a custom Storage Bucket\n *\n * @internal\n */\nexport class FirebaseStorageImpl implements FirebaseStorage {\n  _bucket: Location | null = null;\n  /**\n   * This string can be in the formats:\n   * - host\n   * - host:port\n   */\n  private _host: string = DEFAULT_HOST;\n  _protocol: string = 'https';\n  protected readonly _appId: string | null = null;\n  private readonly _requests: Set<Request<unknown>>;\n  private _deleted: boolean = false;\n  private _maxOperationRetryTime: number;\n  private _maxUploadRetryTime: number;\n  _overrideAuthToken?: string;\n\n  constructor(\n    /**\n     * FirebaseApp associated with this StorageService instance.\n     */\n    readonly app: FirebaseApp,\n    readonly _authProvider: Provider<FirebaseAuthInternalName>,\n    /**\n     * @internal\n     */\n    readonly _appCheckProvider: Provider<AppCheckInternalComponentName>,\n    /**\n     * @internal\n     */\n    readonly _url?: string,\n    readonly _firebaseVersion?: string,\n    public _isUsingEmulator = false\n  ) {\n    this._maxOperationRetryTime = DEFAULT_MAX_OPERATION_RETRY_TIME;\n    this._maxUploadRetryTime = DEFAULT_MAX_UPLOAD_RETRY_TIME;\n    this._requests = new Set();\n    if (_url != null) {\n      this._bucket = Location.makeFromBucketSpec(_url, this._host);\n    } else {\n      this._bucket = extractBucket(this._host, this.app.options);\n    }\n  }\n\n  /**\n   * The host string for this service, in the form of `host` or\n   * `host:port`.\n   */\n  get host(): string {\n    return this._host;\n  }\n\n  set host(host: string) {\n    this._host = host;\n    if (this._url != null) {\n      this._bucket = Location.makeFromBucketSpec(this._url, host);\n    } else {\n      this._bucket = extractBucket(host, this.app.options);\n    }\n  }\n\n  /**\n   * The maximum time to retry uploads in milliseconds.\n   */\n  get maxUploadRetryTime(): number {\n    return this._maxUploadRetryTime;\n  }\n\n  set maxUploadRetryTime(time: number) {\n    validateNumber(\n      'time',\n      /* minValue=*/ 0,\n      /* maxValue= */ Number.POSITIVE_INFINITY,\n      time\n    );\n    this._maxUploadRetryTime = time;\n  }\n\n  /**\n   * The maximum time to retry operations other than uploads or downloads in\n   * milliseconds.\n   */\n  get maxOperationRetryTime(): number {\n    return this._maxOperationRetryTime;\n  }\n\n  set maxOperationRetryTime(time: number) {\n    validateNumber(\n      'time',\n      /* minValue=*/ 0,\n      /* maxValue= */ Number.POSITIVE_INFINITY,\n      time\n    );\n    this._maxOperationRetryTime = time;\n  }\n\n  async _getAuthToken(): Promise<string | null> {\n    if (this._overrideAuthToken) {\n      return this._overrideAuthToken;\n    }\n    const auth = this._authProvider.getImmediate({ optional: true });\n    if (auth) {\n      const tokenData = await auth.getToken();\n      if (tokenData !== null) {\n        return tokenData.accessToken;\n      }\n    }\n    return null;\n  }\n\n  async _getAppCheckToken(): Promise<string | null> {\n    if (_isFirebaseServerApp(this.app) && this.app.settings.appCheckToken) {\n      return this.app.settings.appCheckToken;\n    }\n    const appCheck = this._appCheckProvider.getImmediate({ optional: true });\n    if (appCheck) {\n      const result = await appCheck.getToken();\n      // TODO: What do we want to do if there is an error getting the token?\n      // Context: appCheck.getToken() will never throw even if an error happened. In the error case, a dummy token will be\n      // returned along with an error field describing the error. In general, we shouldn't care about the error condition and just use\n      // the token (actual or dummy) to send requests.\n      return result.token;\n    }\n    return null;\n  }\n\n  /**\n   * Stop running requests and prevent more from being created.\n   */\n  _delete(): Promise<void> {\n    if (!this._deleted) {\n      this._deleted = true;\n      this._requests.forEach(request => request.cancel());\n      this._requests.clear();\n    }\n    return Promise.resolve();\n  }\n\n  /**\n   * Returns a new firebaseStorage.Reference object referencing this StorageService\n   * at the given Location.\n   */\n  _makeStorageReference(loc: Location): Reference {\n    return new Reference(this, loc);\n  }\n\n  /**\n   * @param requestInfo - HTTP RequestInfo object\n   * @param authToken - Firebase auth token\n   */\n  _makeRequest<I extends ConnectionType, O>(\n    requestInfo: RequestInfo<I, O>,\n    requestFactory: () => Connection<I>,\n    authToken: string | null,\n    appCheckToken: string | null,\n    retry = true\n  ): Request<O> {\n    if (!this._deleted) {\n      const request = makeRequest(\n        requestInfo,\n        this._appId,\n        authToken,\n        appCheckToken,\n        requestFactory,\n        this._firebaseVersion,\n        retry,\n        this._isUsingEmulator\n      );\n      this._requests.add(request);\n      // Request removes itself from set when complete.\n      request.getPromise().then(\n        () => this._requests.delete(request),\n        () => this._requests.delete(request)\n      );\n      return request;\n    } else {\n      return new FailRequest(appDeleted());\n    }\n  }\n\n  async makeRequestWithTokens<I extends ConnectionType, O>(\n    requestInfo: RequestInfo<I, O>,\n    requestFactory: () => Connection<I>\n  ): Promise<O> {\n    const [authToken, appCheckToken] = await Promise.all([\n      this._getAuthToken(),\n      this._getAppCheckToken()\n    ]);\n\n    return this._makeRequest(\n      requestInfo,\n      requestFactory,\n      authToken,\n      appCheckToken\n    ).getPromise();\n  }\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * Type constant for Firebase Storage.\n */\nexport const STORAGE_TYPE = 'storage';\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport { _getProvider, FirebaseApp, getApp } from '@firebase/app';\n\nimport {\n  ref as refInternal,\n  FirebaseStorageImpl,\n  connectStorageEmulator as connectEmulatorInternal\n} from './service';\nimport { Provider } from '@firebase/component';\n\nimport {\n  StorageReference,\n  FirebaseStorage,\n  UploadResult,\n  ListOptions,\n  ListResult,\n  UploadTask,\n  SettableMetadata,\n  UploadMetadata,\n  FullMetadata\n} from './public-types';\nimport { Metadata as MetadataInternal } from './metadata';\nimport {\n  uploadBytes as uploadBytesInternal,\n  uploadBytesResumable as uploadBytesResumableInternal,\n  uploadString as uploadStringInternal,\n  getMetadata as getMetadataInternal,\n  updateMetadata as updateMetadataInternal,\n  list as listInternal,\n  listAll as listAllInternal,\n  getDownloadURL as getDownloadURLInternal,\n  deleteObject as deleteObjectInternal,\n  Reference,\n  _getChild as _getChildInternal,\n  getBytesInternal\n} from './reference';\nimport { STORAGE_TYPE } from './constants';\nimport {\n  EmulatorMockTokenOptions,\n  getModularInstance,\n  getDefaultEmulatorHostnameAndPort\n} from '@firebase/util';\nimport { StringFormat } from './implementation/string';\n\nexport { EmulatorMockTokenOptions } from '@firebase/util';\n\nexport { StorageError, StorageErrorCode } from './implementation/error';\n\n/**\n * Public types.\n */\nexport * from './public-types';\n\nexport { Location as _Location } from './implementation/location';\nexport { UploadTask as _UploadTask } from './task';\nexport type { Reference as _Reference } from './reference';\nexport type { FirebaseStorageImpl as _FirebaseStorageImpl } from './service';\nexport { FbsBlob as _FbsBlob } from './implementation/blob';\nexport { dataFromString as _dataFromString } from './implementation/string';\nexport {\n  invalidRootOperation as _invalidRootOperation,\n  invalidArgument as _invalidArgument\n} from './implementation/error';\nexport {\n  TaskEvent as _TaskEvent,\n  TaskState as _TaskState\n} from './implementation/taskenums';\nexport { StringFormat };\n\n/**\n * Downloads the data at the object's location. Returns an error if the object\n * is not found.\n *\n * To use this functionality, you have to whitelist your app's origin in your\n * Cloud Storage bucket. See also\n * https://cloud.google.com/storage/docs/configuring-cors\n *\n * @public\n * @param ref - StorageReference where data should be downloaded.\n * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to\n * retrieve.\n * @returns A Promise containing the object's bytes\n */\nexport function getBytes(\n  ref: StorageReference,\n  maxDownloadSizeBytes?: number\n): Promise<ArrayBuffer> {\n  ref = getModularInstance(ref);\n  return getBytesInternal(ref as Reference, maxDownloadSizeBytes);\n}\n\n/**\n * Uploads data to this object's location.\n * The upload is not resumable.\n * @public\n * @param ref - {@link StorageReference} where data should be uploaded.\n * @param data - The data to upload.\n * @param metadata - Metadata for the data to upload.\n * @returns A Promise containing an UploadResult\n */\nexport function uploadBytes(\n  ref: StorageReference,\n  data: Blob | Uint8Array | ArrayBuffer,\n  metadata?: UploadMetadata\n): Promise<UploadResult> {\n  ref = getModularInstance(ref);\n  return uploadBytesInternal(\n    ref as Reference,\n    data,\n    metadata as MetadataInternal\n  );\n}\n\n/**\n * Uploads a string to this object's location.\n * The upload is not resumable.\n * @public\n * @param ref - {@link StorageReference} where string should be uploaded.\n * @param value - The string to upload.\n * @param format - The format of the string to upload.\n * @param metadata - Metadata for the string to upload.\n * @returns A Promise containing an UploadResult\n */\nexport function uploadString(\n  ref: StorageReference,\n  value: string,\n  format?: StringFormat,\n  metadata?: UploadMetadata\n): Promise<UploadResult> {\n  ref = getModularInstance(ref);\n  return uploadStringInternal(\n    ref as Reference,\n    value,\n    format,\n    metadata as MetadataInternal\n  );\n}\n\n/**\n * Uploads data to this object's location.\n * The upload can be paused and resumed, and exposes progress updates.\n * @public\n * @param ref - {@link StorageReference} where data should be uploaded.\n * @param data - The data to upload.\n * @param metadata - Metadata for the data to upload.\n * @returns An UploadTask\n */\nexport function uploadBytesResumable(\n  ref: StorageReference,\n  data: Blob | Uint8Array | ArrayBuffer,\n  metadata?: UploadMetadata\n): UploadTask {\n  ref = getModularInstance(ref);\n  return uploadBytesResumableInternal(\n    ref as Reference,\n    data,\n    metadata as MetadataInternal\n  ) as UploadTask;\n}\n\n/**\n * A `Promise` that resolves with the metadata for this object. If this\n * object doesn't exist or metadata cannot be retrieved, the promise is\n * rejected.\n * @public\n * @param ref - {@link StorageReference} to get metadata from.\n */\nexport function getMetadata(ref: StorageReference): Promise<FullMetadata> {\n  ref = getModularInstance(ref);\n  return getMetadataInternal(ref as Reference) as Promise<FullMetadata>;\n}\n\n/**\n * Updates the metadata for this object.\n * @public\n * @param ref - {@link StorageReference} to update metadata for.\n * @param metadata - The new metadata for the object.\n *     Only values that have been explicitly set will be changed. Explicitly\n *     setting a value to null will remove the metadata.\n * @returns A `Promise` that resolves with the new metadata for this object.\n */\nexport function updateMetadata(\n  ref: StorageReference,\n  metadata: SettableMetadata\n): Promise<FullMetadata> {\n  ref = getModularInstance(ref);\n  return updateMetadataInternal(\n    ref as Reference,\n    metadata as Partial<MetadataInternal>\n  ) as Promise<FullMetadata>;\n}\n\n/**\n * List items (files) and prefixes (folders) under this storage reference.\n *\n * List API is only available for Firebase Rules Version 2.\n *\n * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'\n * delimited folder structure.\n * Refer to GCS's List API if you want to learn more.\n *\n * To adhere to Firebase Rules's Semantics, Firebase Storage does not\n * support objects whose paths end with \"/\" or contain two consecutive\n * \"/\"s. Firebase Storage List API will filter these unsupported objects.\n * list() may fail if there are too many unsupported objects in the bucket.\n * @public\n *\n * @param ref - {@link StorageReference} to get list from.\n * @param options - See {@link ListOptions} for details.\n * @returns A `Promise` that resolves with the items and prefixes.\n *      `prefixes` contains references to sub-folders and `items`\n *      contains references to objects in this folder. `nextPageToken`\n *      can be used to get the rest of the results.\n */\nexport function list(\n  ref: StorageReference,\n  options?: ListOptions\n): Promise<ListResult> {\n  ref = getModularInstance(ref);\n  return listInternal(ref as Reference, options);\n}\n\n/**\n * List all items (files) and prefixes (folders) under this storage reference.\n *\n * This is a helper method for calling list() repeatedly until there are\n * no more results. The default pagination size is 1000.\n *\n * Note: The results may not be consistent if objects are changed while this\n * operation is running.\n *\n * Warning: `listAll` may potentially consume too many resources if there are\n * too many results.\n * @public\n * @param ref - {@link StorageReference} to get list from.\n *\n * @returns A `Promise` that resolves with all the items and prefixes under\n *      the current storage reference. `prefixes` contains references to\n *      sub-directories and `items` contains references to objects in this\n *      folder. `nextPageToken` is never returned.\n */\nexport function listAll(ref: StorageReference): Promise<ListResult> {\n  ref = getModularInstance(ref);\n  return listAllInternal(ref as Reference);\n}\n\n/**\n * Returns the download URL for the given {@link StorageReference}.\n * @public\n * @param ref - {@link StorageReference} to get the download URL for.\n * @returns A `Promise` that resolves with the download\n *     URL for this object.\n */\nexport function getDownloadURL(ref: StorageReference): Promise<string> {\n  ref = getModularInstance(ref);\n  return getDownloadURLInternal(ref as Reference);\n}\n\n/**\n * Deletes the object at this location.\n * @public\n * @param ref - {@link StorageReference} for object to delete.\n * @returns A `Promise` that resolves if the deletion succeeds.\n */\nexport function deleteObject(ref: StorageReference): Promise<void> {\n  ref = getModularInstance(ref);\n  return deleteObjectInternal(ref as Reference);\n}\n\n/**\n * Returns a {@link StorageReference} for the given url.\n * @param storage - {@link FirebaseStorage} instance.\n * @param url - URL. If empty, returns root reference.\n * @public\n */\nexport function ref(storage: FirebaseStorage, url?: string): StorageReference;\n/**\n * Returns a {@link StorageReference} for the given path in the\n * default bucket.\n * @param storageOrRef - {@link FirebaseStorage} or {@link StorageReference}.\n * @param pathOrUrlStorage - path. If empty, returns root reference (if {@link FirebaseStorage}\n * instance provided) or returns same reference (if {@link StorageReference} provided).\n * @public\n */\nexport function ref(\n  storageOrRef: FirebaseStorage | StorageReference,\n  path?: string\n): StorageReference;\nexport function ref(\n  serviceOrRef: FirebaseStorage | StorageReference,\n  pathOrUrl?: string\n): StorageReference | null {\n  serviceOrRef = getModularInstance(serviceOrRef);\n  return refInternal(\n    serviceOrRef as FirebaseStorageImpl | Reference,\n    pathOrUrl\n  );\n}\n\n/**\n * @internal\n */\nexport function _getChild(ref: StorageReference, childPath: string): Reference {\n  return _getChildInternal(ref as Reference, childPath);\n}\n\n/**\n * Gets a {@link FirebaseStorage} instance for the given Firebase app.\n * @public\n * @param app - Firebase app to get {@link FirebaseStorage} instance for.\n * @param bucketUrl - The gs:// url to your Firebase Storage Bucket.\n * If not passed, uses the app's default Storage Bucket.\n * @returns A {@link FirebaseStorage} instance.\n */\nexport function getStorage(\n  app: FirebaseApp = getApp(),\n  bucketUrl?: string\n): FirebaseStorage {\n  app = getModularInstance(app);\n  const storageProvider: Provider<'storage'> = _getProvider(app, STORAGE_TYPE);\n  const storageInstance = storageProvider.getImmediate({\n    identifier: bucketUrl\n  });\n  const emulator = getDefaultEmulatorHostnameAndPort('storage');\n  if (emulator) {\n    connectStorageEmulator(storageInstance, ...emulator);\n  }\n  return storageInstance;\n}\n\n/**\n * Modify this {@link FirebaseStorage} instance to communicate with the Cloud Storage emulator.\n *\n * @param storage - The {@link FirebaseStorage} instance\n * @param host - The emulator host (ex: localhost)\n * @param port - The emulator port (ex: 5001)\n * @param options - Emulator options. `options.mockUserToken` is the mock auth\n * token to use for unit testing Security Rules.\n * @public\n */\nexport function connectStorageEmulator(\n  storage: FirebaseStorage,\n  host: string,\n  port: number,\n  options: {\n    mockUserToken?: EmulatorMockTokenOptions | string;\n  } = {}\n): void {\n  connectEmulatorInternal(storage as FirebaseStorageImpl, host, port, options);\n}\n","/**\n * @license\n * Copyright 2021 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { StorageReference } from './public-types';\nimport { Reference, getBlobInternal } from './reference';\nimport { getModularInstance } from '@firebase/util';\n\n/**\n * Downloads the data at the object's location. Returns an error if the object\n * is not found.\n *\n * To use this functionality, you have to whitelist your app's origin in your\n * Cloud Storage bucket. See also\n * https://cloud.google.com/storage/docs/configuring-cors\n *\n * This API is not available in Node.\n *\n * @public\n * @param ref - StorageReference where data should be downloaded.\n * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to\n * retrieve.\n * @returns A Promise that resolves with a Blob containing the object's bytes\n */\nexport function getBlob(\n  ref: StorageReference,\n  maxDownloadSizeBytes?: number\n): Promise<Blob> {\n  ref = getModularInstance(ref);\n  return getBlobInternal(ref as Reference, maxDownloadSizeBytes);\n}\n\n/**\n * Downloads the data at the object's location. Raises an error event if the\n * object is not found.\n *\n * This API is only available in Node.\n *\n * @public\n * @param ref - StorageReference where data should be downloaded.\n * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to\n * retrieve.\n * @returns A stream with the object's data as bytes\n */\nexport function getStream(\n  ref: StorageReference,\n  maxDownloadSizeBytes?: number\n): ReadableStream {\n  throw new Error('getStream() is only supported by NodeJS builds');\n}\n","/**\n * Cloud Storage for Firebase\n *\n * @packageDocumentation\n */\n\n/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n// eslint-disable-next-line import/no-extraneous-dependencies\nimport {\n  _registerComponent,\n  registerVersion,\n  SDK_VERSION\n} from '@firebase/app';\n\nimport { FirebaseStorageImpl } from '../src/service';\nimport {\n  Component,\n  ComponentType,\n  ComponentContainer,\n  InstanceFactoryOptions\n} from '@firebase/component';\n\nimport { name, version } from '../package.json';\n\nimport { FirebaseStorage } from './public-types';\nimport { STORAGE_TYPE } from './constants';\n\nexport * from './api';\nexport * from './api.browser';\n\nfunction factory(\n  container: ComponentContainer,\n  { instanceIdentifier: url }: InstanceFactoryOptions\n): FirebaseStorage {\n  const app = container.getProvider('app').getImmediate();\n  const authProvider = container.getProvider('auth-internal');\n  const appCheckProvider = container.getProvider('app-check-internal');\n\n  return new FirebaseStorageImpl(\n    app,\n    authProvider,\n    appCheckProvider,\n    url,\n    SDK_VERSION\n  );\n}\n\nfunction registerStorage(): void {\n  _registerComponent(\n    new Component(\n      STORAGE_TYPE,\n      factory,\n      ComponentType.PUBLIC\n    ).setMultipleInstances(true)\n  );\n  //RUNTIME_ENV will be replaced during the compilation to \"node\" for nodejs and an empty string for browser\n  registerVersion(name, version, '__RUNTIME_ENV__');\n  // BUILD_TARGET will be replaced by values like esm, cjs, etc during the compilation\n  registerVersion(name, version, 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\ No newline at end of file
diff --git a/frontend-old/node_modules/@firebase/storage/dist/index.esm.js b/frontend-old/node_modules/@firebase/storage/dist/index.esm.js
new file mode 100644
index 0000000..53113e6
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/index.esm.js
@@ -0,0 +1,3656 @@
+import { _isFirebaseServerApp, _getProvider, getApp, _registerComponent, registerVersion, SDK_VERSION } from '@firebase/app';
+import { FirebaseError, isCloudWorkstation, pingServer, updateEmulatorBanner, createMockUserToken, getModularInstance, getDefaultEmulatorHostnameAndPort } from '@firebase/util';
+import { Component } from '@firebase/component';
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Constants used in the Firebase Storage library.
+ */
+/**
+ * Domain name for firebase storage.
+ */
+const DEFAULT_HOST = 'firebasestorage.googleapis.com';
+/**
+ * The key in Firebase config json for the storage bucket.
+ */
+const CONFIG_STORAGE_BUCKET_KEY = 'storageBucket';
+/**
+ * 2 minutes
+ *
+ * The timeout for all operations except upload.
+ */
+const DEFAULT_MAX_OPERATION_RETRY_TIME = 2 * 60 * 1000;
+/**
+ * 10 minutes
+ *
+ * The timeout for upload.
+ */
+const DEFAULT_MAX_UPLOAD_RETRY_TIME = 10 * 60 * 1000;
+/**
+ * 1 second
+ */
+const DEFAULT_MIN_SLEEP_TIME_MILLIS = 1000;
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * An error returned by the Firebase Storage SDK.
+ * @public
+ */
+class StorageError extends FirebaseError {
+    /**
+     * @param code - A `StorageErrorCode` string to be prefixed with 'storage/' and
+     *  added to the end of the message.
+     * @param message  - Error message.
+     * @param status_ - Corresponding HTTP Status Code
+     */
+    constructor(code, message, status_ = 0) {
+        super(prependCode(code), `Firebase Storage: ${message} (${prependCode(code)})`);
+        this.status_ = status_;
+        /**
+         * Stores custom error data unique to the `StorageError`.
+         */
+        this.customData = { serverResponse: null };
+        this._baseMessage = this.message;
+        // Without this, `instanceof StorageError`, in tests for example,
+        // returns false.
+        Object.setPrototypeOf(this, StorageError.prototype);
+    }
+    get status() {
+        return this.status_;
+    }
+    set status(status) {
+        this.status_ = status;
+    }
+    /**
+     * Compares a `StorageErrorCode` against this error's code, filtering out the prefix.
+     */
+    _codeEquals(code) {
+        return prependCode(code) === this.code;
+    }
+    /**
+     * Optional response message that was added by the server.
+     */
+    get serverResponse() {
+        return this.customData.serverResponse;
+    }
+    set serverResponse(serverResponse) {
+        this.customData.serverResponse = serverResponse;
+        if (this.customData.serverResponse) {
+            this.message = `${this._baseMessage}\n${this.customData.serverResponse}`;
+        }
+        else {
+            this.message = this._baseMessage;
+        }
+    }
+}
+/**
+ * @public
+ * Error codes that can be attached to `StorageError` objects.
+ */
+var StorageErrorCode;
+(function (StorageErrorCode) {
+    // Shared between all platforms
+    StorageErrorCode["UNKNOWN"] = "unknown";
+    StorageErrorCode["OBJECT_NOT_FOUND"] = "object-not-found";
+    StorageErrorCode["BUCKET_NOT_FOUND"] = "bucket-not-found";
+    StorageErrorCode["PROJECT_NOT_FOUND"] = "project-not-found";
+    StorageErrorCode["QUOTA_EXCEEDED"] = "quota-exceeded";
+    StorageErrorCode["UNAUTHENTICATED"] = "unauthenticated";
+    StorageErrorCode["UNAUTHORIZED"] = "unauthorized";
+    StorageErrorCode["UNAUTHORIZED_APP"] = "unauthorized-app";
+    StorageErrorCode["RETRY_LIMIT_EXCEEDED"] = "retry-limit-exceeded";
+    StorageErrorCode["INVALID_CHECKSUM"] = "invalid-checksum";
+    StorageErrorCode["CANCELED"] = "canceled";
+    // JS specific
+    StorageErrorCode["INVALID_EVENT_NAME"] = "invalid-event-name";
+    StorageErrorCode["INVALID_URL"] = "invalid-url";
+    StorageErrorCode["INVALID_DEFAULT_BUCKET"] = "invalid-default-bucket";
+    StorageErrorCode["NO_DEFAULT_BUCKET"] = "no-default-bucket";
+    StorageErrorCode["CANNOT_SLICE_BLOB"] = "cannot-slice-blob";
+    StorageErrorCode["SERVER_FILE_WRONG_SIZE"] = "server-file-wrong-size";
+    StorageErrorCode["NO_DOWNLOAD_URL"] = "no-download-url";
+    StorageErrorCode["INVALID_ARGUMENT"] = "invalid-argument";
+    StorageErrorCode["INVALID_ARGUMENT_COUNT"] = "invalid-argument-count";
+    StorageErrorCode["APP_DELETED"] = "app-deleted";
+    StorageErrorCode["INVALID_ROOT_OPERATION"] = "invalid-root-operation";
+    StorageErrorCode["INVALID_FORMAT"] = "invalid-format";
+    StorageErrorCode["INTERNAL_ERROR"] = "internal-error";
+    StorageErrorCode["UNSUPPORTED_ENVIRONMENT"] = "unsupported-environment";
+})(StorageErrorCode || (StorageErrorCode = {}));
+function prependCode(code) {
+    return 'storage/' + code;
+}
+function unknown() {
+    const message = 'An unknown error occurred, please check the error payload for ' +
+        'server response.';
+    return new StorageError(StorageErrorCode.UNKNOWN, message);
+}
+function objectNotFound(path) {
+    return new StorageError(StorageErrorCode.OBJECT_NOT_FOUND, "Object '" + path + "' does not exist.");
+}
+function quotaExceeded(bucket) {
+    return new StorageError(StorageErrorCode.QUOTA_EXCEEDED, "Quota for bucket '" +
+        bucket +
+        "' exceeded, please view quota on " +
+        'https://firebase.google.com/pricing/.');
+}
+function unauthenticated() {
+    const message = 'User is not authenticated, please authenticate using Firebase ' +
+        'Authentication and try again.';
+    return new StorageError(StorageErrorCode.UNAUTHENTICATED, message);
+}
+function unauthorizedApp() {
+    return new StorageError(StorageErrorCode.UNAUTHORIZED_APP, 'This app does not have permission to access Firebase Storage on this project.');
+}
+function unauthorized(path) {
+    return new StorageError(StorageErrorCode.UNAUTHORIZED, "User does not have permission to access '" + path + "'.");
+}
+function retryLimitExceeded() {
+    return new StorageError(StorageErrorCode.RETRY_LIMIT_EXCEEDED, 'Max retry time for operation exceeded, please try again.');
+}
+function canceled() {
+    return new StorageError(StorageErrorCode.CANCELED, 'User canceled the upload/download.');
+}
+function invalidUrl(url) {
+    return new StorageError(StorageErrorCode.INVALID_URL, "Invalid URL '" + url + "'.");
+}
+function invalidDefaultBucket(bucket) {
+    return new StorageError(StorageErrorCode.INVALID_DEFAULT_BUCKET, "Invalid default bucket '" + bucket + "'.");
+}
+function noDefaultBucket() {
+    return new StorageError(StorageErrorCode.NO_DEFAULT_BUCKET, 'No default bucket ' +
+        "found. Did you set the '" +
+        CONFIG_STORAGE_BUCKET_KEY +
+        "' property when initializing the app?");
+}
+function cannotSliceBlob() {
+    return new StorageError(StorageErrorCode.CANNOT_SLICE_BLOB, 'Cannot slice blob for upload. Please retry the upload.');
+}
+function serverFileWrongSize() {
+    return new StorageError(StorageErrorCode.SERVER_FILE_WRONG_SIZE, 'Server recorded incorrect upload file size, please retry the upload.');
+}
+function noDownloadURL() {
+    return new StorageError(StorageErrorCode.NO_DOWNLOAD_URL, 'The given file does not have any download URLs.');
+}
+function missingPolyFill(polyFill) {
+    return new StorageError(StorageErrorCode.UNSUPPORTED_ENVIRONMENT, `${polyFill} is missing. Make sure to install the required polyfills. See https://firebase.google.com/docs/web/environments-js-sdk#polyfills for more information.`);
+}
+/**
+ * @internal
+ */
+function invalidArgument(message) {
+    return new StorageError(StorageErrorCode.INVALID_ARGUMENT, message);
+}
+function appDeleted() {
+    return new StorageError(StorageErrorCode.APP_DELETED, 'The Firebase app was deleted.');
+}
+/**
+ * @param name - The name of the operation that was invalid.
+ *
+ * @internal
+ */
+function invalidRootOperation(name) {
+    return new StorageError(StorageErrorCode.INVALID_ROOT_OPERATION, "The operation '" +
+        name +
+        "' cannot be performed on a root reference, create a non-root " +
+        "reference using child, such as .child('file.png').");
+}
+/**
+ * @param format - The format that was not valid.
+ * @param message - A message describing the format violation.
+ */
+function invalidFormat(format, message) {
+    return new StorageError(StorageErrorCode.INVALID_FORMAT, "String does not match format '" + format + "': " + message);
+}
+/**
+ * @param message - A message describing the internal error.
+ */
+function internalError(message) {
+    throw new StorageError(StorageErrorCode.INTERNAL_ERROR, 'Internal error: ' + message);
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Firebase Storage location data.
+ *
+ * @internal
+ */
+class Location {
+    constructor(bucket, path) {
+        this.bucket = bucket;
+        this.path_ = path;
+    }
+    get path() {
+        return this.path_;
+    }
+    get isRoot() {
+        return this.path.length === 0;
+    }
+    fullServerUrl() {
+        const encode = encodeURIComponent;
+        return '/b/' + encode(this.bucket) + '/o/' + encode(this.path);
+    }
+    bucketOnlyServerUrl() {
+        const encode = encodeURIComponent;
+        return '/b/' + encode(this.bucket) + '/o';
+    }
+    static makeFromBucketSpec(bucketString, host) {
+        let bucketLocation;
+        try {
+            bucketLocation = Location.makeFromUrl(bucketString, host);
+        }
+        catch (e) {
+            // Not valid URL, use as-is. This lets you put bare bucket names in
+            // config.
+            return new Location(bucketString, '');
+        }
+        if (bucketLocation.path === '') {
+            return bucketLocation;
+        }
+        else {
+            throw invalidDefaultBucket(bucketString);
+        }
+    }
+    static makeFromUrl(url, host) {
+        let location = null;
+        const bucketDomain = '([A-Za-z0-9.\\-_]+)';
+        function gsModify(loc) {
+            if (loc.path.charAt(loc.path.length - 1) === '/') {
+                loc.path_ = loc.path_.slice(0, -1);
+            }
+        }
+        const gsPath = '(/(.*))?$';
+        const gsRegex = new RegExp('^gs://' + bucketDomain + gsPath, 'i');
+        const gsIndices = { bucket: 1, path: 3 };
+        function httpModify(loc) {
+            loc.path_ = decodeURIComponent(loc.path);
+        }
+        const version = 'v[A-Za-z0-9_]+';
+        const firebaseStorageHost = host.replace(/[.]/g, '\\.');
+        const firebaseStoragePath = '(/([^?#]*).*)?$';
+        const firebaseStorageRegExp = new RegExp(`^https?://${firebaseStorageHost}/${version}/b/${bucketDomain}/o${firebaseStoragePath}`, 'i');
+        const firebaseStorageIndices = { bucket: 1, path: 3 };
+        const cloudStorageHost = host === DEFAULT_HOST
+            ? '(?:storage.googleapis.com|storage.cloud.google.com)'
+            : host;
+        const cloudStoragePath = '([^?#]*)';
+        const cloudStorageRegExp = new RegExp(`^https?://${cloudStorageHost}/${bucketDomain}/${cloudStoragePath}`, 'i');
+        const cloudStorageIndices = { bucket: 1, path: 2 };
+        const groups = [
+            { regex: gsRegex, indices: gsIndices, postModify: gsModify },
+            {
+                regex: firebaseStorageRegExp,
+                indices: firebaseStorageIndices,
+                postModify: httpModify
+            },
+            {
+                regex: cloudStorageRegExp,
+                indices: cloudStorageIndices,
+                postModify: httpModify
+            }
+        ];
+        for (let i = 0; i < groups.length; i++) {
+            const group = groups[i];
+            const captures = group.regex.exec(url);
+            if (captures) {
+                const bucketValue = captures[group.indices.bucket];
+                let pathValue = captures[group.indices.path];
+                if (!pathValue) {
+                    pathValue = '';
+                }
+                location = new Location(bucketValue, pathValue);
+                group.postModify(location);
+                break;
+            }
+        }
+        if (location == null) {
+            throw invalidUrl(url);
+        }
+        return location;
+    }
+}
+
+/**
+ * A request whose promise always fails.
+ */
+class FailRequest {
+    constructor(error) {
+        this.promise_ = Promise.reject(error);
+    }
+    /** @inheritDoc */
+    getPromise() {
+        return this.promise_;
+    }
+    /** @inheritDoc */
+    cancel(_appDelete = false) { }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Accepts a callback for an action to perform (`doRequest`),
+ * and then a callback for when the backoff has completed (`backoffCompleteCb`).
+ * The callback sent to start requires an argument to call (`onRequestComplete`).
+ * When `start` calls `doRequest`, it passes a callback for when the request has
+ * completed, `onRequestComplete`. Based on this, the backoff continues, with
+ * another call to `doRequest` and the above loop continues until the timeout
+ * is hit, or a successful response occurs.
+ * @description
+ * @param doRequest Callback to perform request
+ * @param backoffCompleteCb Callback to call when backoff has been completed
+ */
+function start(doRequest, 
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+backoffCompleteCb, timeout) {
+    // TODO(andysoto): make this code cleaner (probably refactor into an actual
+    // type instead of a bunch of functions with state shared in the closure)
+    let waitSeconds = 1;
+    // Would type this as "number" but that doesn't work for Node so ¯\_(ツ)_/¯
+    // TODO: find a way to exclude Node type definition for storage because storage only works in browser
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    let retryTimeoutId = null;
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    let globalTimeoutId = null;
+    let hitTimeout = false;
+    let cancelState = 0;
+    function canceled() {
+        return cancelState === 2;
+    }
+    let triggeredCallback = false;
+    function triggerCallback(...args) {
+        if (!triggeredCallback) {
+            triggeredCallback = true;
+            backoffCompleteCb.apply(null, args);
+        }
+    }
+    function callWithDelay(millis) {
+        retryTimeoutId = setTimeout(() => {
+            retryTimeoutId = null;
+            doRequest(responseHandler, canceled());
+        }, millis);
+    }
+    function clearGlobalTimeout() {
+        if (globalTimeoutId) {
+            clearTimeout(globalTimeoutId);
+        }
+    }
+    function responseHandler(success, ...args) {
+        if (triggeredCallback) {
+            clearGlobalTimeout();
+            return;
+        }
+        if (success) {
+            clearGlobalTimeout();
+            triggerCallback.call(null, success, ...args);
+            return;
+        }
+        const mustStop = canceled() || hitTimeout;
+        if (mustStop) {
+            clearGlobalTimeout();
+            triggerCallback.call(null, success, ...args);
+            return;
+        }
+        if (waitSeconds < 64) {
+            /* TODO(andysoto): don't back off so quickly if we know we're offline. */
+            waitSeconds *= 2;
+        }
+        let waitMillis;
+        if (cancelState === 1) {
+            cancelState = 2;
+            waitMillis = 0;
+        }
+        else {
+            waitMillis = (waitSeconds + Math.random()) * 1000;
+        }
+        callWithDelay(waitMillis);
+    }
+    let stopped = false;
+    function stop(wasTimeout) {
+        if (stopped) {
+            return;
+        }
+        stopped = true;
+        clearGlobalTimeout();
+        if (triggeredCallback) {
+            return;
+        }
+        if (retryTimeoutId !== null) {
+            if (!wasTimeout) {
+                cancelState = 2;
+            }
+            clearTimeout(retryTimeoutId);
+            callWithDelay(0);
+        }
+        else {
+            if (!wasTimeout) {
+                cancelState = 1;
+            }
+        }
+    }
+    callWithDelay(0);
+    globalTimeoutId = setTimeout(() => {
+        hitTimeout = true;
+        stop(true);
+    }, timeout);
+    return stop;
+}
+/**
+ * Stops the retry loop from repeating.
+ * If the function is currently "in between" retries, it is invoked immediately
+ * with the second parameter as "true". Otherwise, it will be invoked once more
+ * after the current invocation finishes iff the current invocation would have
+ * triggered another retry.
+ */
+function stop(id) {
+    id(false);
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+function isJustDef(p) {
+    return p !== void 0;
+}
+// eslint-disable-next-line @typescript-eslint/ban-types
+function isFunction(p) {
+    return typeof p === 'function';
+}
+function isNonArrayObject(p) {
+    return typeof p === 'object' && !Array.isArray(p);
+}
+function isString(p) {
+    return typeof p === 'string' || p instanceof String;
+}
+function isNativeBlob(p) {
+    return isNativeBlobDefined() && p instanceof Blob;
+}
+function isNativeBlobDefined() {
+    return typeof Blob !== 'undefined';
+}
+function validateNumber(argument, minValue, maxValue, value) {
+    if (value < minValue) {
+        throw invalidArgument(`Invalid value for '${argument}'. Expected ${minValue} or greater.`);
+    }
+    if (value > maxValue) {
+        throw invalidArgument(`Invalid value for '${argument}'. Expected ${maxValue} or less.`);
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+function makeUrl(urlPart, host, protocol) {
+    let origin = host;
+    if (protocol == null) {
+        origin = `https://${host}`;
+    }
+    return `${protocol}://${origin}/v0${urlPart}`;
+}
+function makeQueryString(params) {
+    const encode = encodeURIComponent;
+    let queryPart = '?';
+    for (const key in params) {
+        if (params.hasOwnProperty(key)) {
+            const nextPart = encode(key) + '=' + encode(params[key]);
+            queryPart = queryPart + nextPart + '&';
+        }
+    }
+    // Chop off the extra '&' or '?' on the end
+    queryPart = queryPart.slice(0, -1);
+    return queryPart;
+}
+
+/**
+ * Error codes for requests made by the XhrIo wrapper.
+ */
+var ErrorCode;
+(function (ErrorCode) {
+    ErrorCode[ErrorCode["NO_ERROR"] = 0] = "NO_ERROR";
+    ErrorCode[ErrorCode["NETWORK_ERROR"] = 1] = "NETWORK_ERROR";
+    ErrorCode[ErrorCode["ABORT"] = 2] = "ABORT";
+})(ErrorCode || (ErrorCode = {}));
+
+/**
+ * @license
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Checks the status code to see if the action should be retried.
+ *
+ * @param status Current HTTP status code returned by server.
+ * @param additionalRetryCodes additional retry codes to check against
+ */
+function isRetryStatusCode(status, additionalRetryCodes) {
+    // The codes for which to retry came from this page:
+    // https://cloud.google.com/storage/docs/exponential-backoff
+    const isFiveHundredCode = status >= 500 && status < 600;
+    const extraRetryCodes = [
+        // Request Timeout: web server didn't receive full request in time.
+        408,
+        // Too Many Requests: you're getting rate-limited, basically.
+        429
+    ];
+    const isExtraRetryCode = extraRetryCodes.indexOf(status) !== -1;
+    const isAdditionalRetryCode = additionalRetryCodes.indexOf(status) !== -1;
+    return isFiveHundredCode || isExtraRetryCode || isAdditionalRetryCode;
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Handles network logic for all Storage Requests, including error reporting and
+ * retries with backoff.
+ *
+ * @param I - the type of the backend's network response.
+ * @param - O the output type used by the rest of the SDK. The conversion
+ * happens in the specified `callback_`.
+ */
+class NetworkRequest {
+    constructor(url_, method_, headers_, body_, successCodes_, additionalRetryCodes_, callback_, errorCallback_, timeout_, progressCallback_, connectionFactory_, retry = true, isUsingEmulator = false) {
+        this.url_ = url_;
+        this.method_ = method_;
+        this.headers_ = headers_;
+        this.body_ = body_;
+        this.successCodes_ = successCodes_;
+        this.additionalRetryCodes_ = additionalRetryCodes_;
+        this.callback_ = callback_;
+        this.errorCallback_ = errorCallback_;
+        this.timeout_ = timeout_;
+        this.progressCallback_ = progressCallback_;
+        this.connectionFactory_ = connectionFactory_;
+        this.retry = retry;
+        this.isUsingEmulator = isUsingEmulator;
+        this.pendingConnection_ = null;
+        this.backoffId_ = null;
+        this.canceled_ = false;
+        this.appDelete_ = false;
+        this.promise_ = new Promise((resolve, reject) => {
+            this.resolve_ = resolve;
+            this.reject_ = reject;
+            this.start_();
+        });
+    }
+    /**
+     * Actually starts the retry loop.
+     */
+    start_() {
+        const doTheRequest = (backoffCallback, canceled) => {
+            if (canceled) {
+                backoffCallback(false, new RequestEndStatus(false, null, true));
+                return;
+            }
+            const connection = this.connectionFactory_();
+            this.pendingConnection_ = connection;
+            const progressListener = progressEvent => {
+                const loaded = progressEvent.loaded;
+                const total = progressEvent.lengthComputable ? progressEvent.total : -1;
+                if (this.progressCallback_ !== null) {
+                    this.progressCallback_(loaded, total);
+                }
+            };
+            if (this.progressCallback_ !== null) {
+                connection.addUploadProgressListener(progressListener);
+            }
+            // connection.send() never rejects, so we don't need to have a error handler or use catch on the returned promise.
+            // eslint-disable-next-line @typescript-eslint/no-floating-promises
+            connection
+                .send(this.url_, this.method_, this.isUsingEmulator, this.body_, this.headers_)
+                .then(() => {
+                if (this.progressCallback_ !== null) {
+                    connection.removeUploadProgressListener(progressListener);
+                }
+                this.pendingConnection_ = null;
+                const hitServer = connection.getErrorCode() === ErrorCode.NO_ERROR;
+                const status = connection.getStatus();
+                if (!hitServer ||
+                    (isRetryStatusCode(status, this.additionalRetryCodes_) &&
+                        this.retry)) {
+                    const wasCanceled = connection.getErrorCode() === ErrorCode.ABORT;
+                    backoffCallback(false, new RequestEndStatus(false, null, wasCanceled));
+                    return;
+                }
+                const successCode = this.successCodes_.indexOf(status) !== -1;
+                backoffCallback(true, new RequestEndStatus(successCode, connection));
+            });
+        };
+        /**
+         * @param requestWentThrough - True if the request eventually went
+         *     through, false if it hit the retry limit or was canceled.
+         */
+        const backoffDone = (requestWentThrough, status) => {
+            const resolve = this.resolve_;
+            const reject = this.reject_;
+            const connection = status.connection;
+            if (status.wasSuccessCode) {
+                try {
+                    const result = this.callback_(connection, connection.getResponse());
+                    if (isJustDef(result)) {
+                        resolve(result);
+                    }
+                    else {
+                        resolve();
+                    }
+                }
+                catch (e) {
+                    reject(e);
+                }
+            }
+            else {
+                if (connection !== null) {
+                    const err = unknown();
+                    err.serverResponse = connection.getErrorText();
+                    if (this.errorCallback_) {
+                        reject(this.errorCallback_(connection, err));
+                    }
+                    else {
+                        reject(err);
+                    }
+                }
+                else {
+                    if (status.canceled) {
+                        const err = this.appDelete_ ? appDeleted() : canceled();
+                        reject(err);
+                    }
+                    else {
+                        const err = retryLimitExceeded();
+                        reject(err);
+                    }
+                }
+            }
+        };
+        if (this.canceled_) {
+            backoffDone(false, new RequestEndStatus(false, null, true));
+        }
+        else {
+            this.backoffId_ = start(doTheRequest, backoffDone, this.timeout_);
+        }
+    }
+    /** @inheritDoc */
+    getPromise() {
+        return this.promise_;
+    }
+    /** @inheritDoc */
+    cancel(appDelete) {
+        this.canceled_ = true;
+        this.appDelete_ = appDelete || false;
+        if (this.backoffId_ !== null) {
+            stop(this.backoffId_);
+        }
+        if (this.pendingConnection_ !== null) {
+            this.pendingConnection_.abort();
+        }
+    }
+}
+/**
+ * A collection of information about the result of a network request.
+ * @param opt_canceled - Defaults to false.
+ */
+class RequestEndStatus {
+    constructor(wasSuccessCode, connection, canceled) {
+        this.wasSuccessCode = wasSuccessCode;
+        this.connection = connection;
+        this.canceled = !!canceled;
+    }
+}
+function addAuthHeader_(headers, authToken) {
+    if (authToken !== null && authToken.length > 0) {
+        headers['Authorization'] = 'Firebase ' + authToken;
+    }
+}
+function addVersionHeader_(headers, firebaseVersion) {
+    headers['X-Firebase-Storage-Version'] =
+        'webjs/' + (firebaseVersion ?? 'AppManager');
+}
+function addGmpidHeader_(headers, appId) {
+    if (appId) {
+        headers['X-Firebase-GMPID'] = appId;
+    }
+}
+function addAppCheckHeader_(headers, appCheckToken) {
+    if (appCheckToken !== null) {
+        headers['X-Firebase-AppCheck'] = appCheckToken;
+    }
+}
+function makeRequest(requestInfo, appId, authToken, appCheckToken, requestFactory, firebaseVersion, retry = true, isUsingEmulator = false) {
+    const queryPart = makeQueryString(requestInfo.urlParams);
+    const url = requestInfo.url + queryPart;
+    const headers = Object.assign({}, requestInfo.headers);
+    addGmpidHeader_(headers, appId);
+    addAuthHeader_(headers, authToken);
+    addVersionHeader_(headers, firebaseVersion);
+    addAppCheckHeader_(headers, appCheckToken);
+    return new NetworkRequest(url, requestInfo.method, headers, requestInfo.body, requestInfo.successCodes, requestInfo.additionalRetryCodes, requestInfo.handler, requestInfo.errorHandler, requestInfo.timeout, requestInfo.progressCallback, requestFactory, retry, isUsingEmulator);
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+function getBlobBuilder() {
+    if (typeof BlobBuilder !== 'undefined') {
+        return BlobBuilder;
+    }
+    else if (typeof WebKitBlobBuilder !== 'undefined') {
+        return WebKitBlobBuilder;
+    }
+    else {
+        return undefined;
+    }
+}
+/**
+ * Concatenates one or more values together and converts them to a Blob.
+ *
+ * @param args The values that will make up the resulting blob.
+ * @return The blob.
+ */
+function getBlob$1(...args) {
+    const BlobBuilder = getBlobBuilder();
+    if (BlobBuilder !== undefined) {
+        const bb = new BlobBuilder();
+        for (let i = 0; i < args.length; i++) {
+            bb.append(args[i]);
+        }
+        return bb.getBlob();
+    }
+    else {
+        if (isNativeBlobDefined()) {
+            return new Blob(args);
+        }
+        else {
+            throw new StorageError(StorageErrorCode.UNSUPPORTED_ENVIRONMENT, "This browser doesn't seem to support creating Blobs");
+        }
+    }
+}
+/**
+ * Slices the blob. The returned blob contains data from the start byte
+ * (inclusive) till the end byte (exclusive). Negative indices cannot be used.
+ *
+ * @param blob The blob to be sliced.
+ * @param start Index of the starting byte.
+ * @param end Index of the ending byte.
+ * @return The blob slice or null if not supported.
+ */
+function sliceBlob(blob, start, end) {
+    if (blob.webkitSlice) {
+        return blob.webkitSlice(start, end);
+    }
+    else if (blob.mozSlice) {
+        return blob.mozSlice(start, end);
+    }
+    else if (blob.slice) {
+        return blob.slice(start, end);
+    }
+    return null;
+}
+
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/** Converts a Base64 encoded string to a binary string. */
+function decodeBase64(encoded) {
+    if (typeof atob === 'undefined') {
+        throw missingPolyFill('base-64');
+    }
+    return atob(encoded);
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * An enumeration of the possible string formats for upload.
+ * @public
+ */
+const StringFormat = {
+    /**
+     * Indicates the string should be interpreted "raw", that is, as normal text.
+     * The string will be interpreted as UTF-16, then uploaded as a UTF-8 byte
+     * sequence.
+     * Example: The string 'Hello! \\ud83d\\ude0a' becomes the byte sequence
+     * 48 65 6c 6c 6f 21 20 f0 9f 98 8a
+     */
+    RAW: 'raw',
+    /**
+     * Indicates the string should be interpreted as base64-encoded data.
+     * Padding characters (trailing '='s) are optional.
+     * Example: The string 'rWmO++E6t7/rlw==' becomes the byte sequence
+     * ad 69 8e fb e1 3a b7 bf eb 97
+     */
+    BASE64: 'base64',
+    /**
+     * Indicates the string should be interpreted as base64url-encoded data.
+     * Padding characters (trailing '='s) are optional.
+     * Example: The string 'rWmO--E6t7_rlw==' becomes the byte sequence
+     * ad 69 8e fb e1 3a b7 bf eb 97
+     */
+    BASE64URL: 'base64url',
+    /**
+     * Indicates the string is a data URL, such as one obtained from
+     * canvas.toDataURL().
+     * Example: the string 'data:application/octet-stream;base64,aaaa'
+     * becomes the byte sequence
+     * 69 a6 9a
+     * (the content-type "application/octet-stream" is also applied, but can
+     * be overridden in the metadata object).
+     */
+    DATA_URL: 'data_url'
+};
+class StringData {
+    constructor(data, contentType) {
+        this.data = data;
+        this.contentType = contentType || null;
+    }
+}
+/**
+ * @internal
+ */
+function dataFromString(format, stringData) {
+    switch (format) {
+        case StringFormat.RAW:
+            return new StringData(utf8Bytes_(stringData));
+        case StringFormat.BASE64:
+        case StringFormat.BASE64URL:
+            return new StringData(base64Bytes_(format, stringData));
+        case StringFormat.DATA_URL:
+            return new StringData(dataURLBytes_(stringData), dataURLContentType_(stringData));
+        // do nothing
+    }
+    // assert(false);
+    throw unknown();
+}
+function utf8Bytes_(value) {
+    const b = [];
+    for (let i = 0; i < value.length; i++) {
+        let c = value.charCodeAt(i);
+        if (c <= 127) {
+            b.push(c);
+        }
+        else {
+            if (c <= 2047) {
+                b.push(192 | (c >> 6), 128 | (c & 63));
+            }
+            else {
+                if ((c & 64512) === 55296) {
+                    // The start of a surrogate pair.
+                    const valid = i < value.length - 1 && (value.charCodeAt(i + 1) & 64512) === 56320;
+                    if (!valid) {
+                        // The second surrogate wasn't there.
+                        b.push(239, 191, 189);
+                    }
+                    else {
+                        const hi = c;
+                        const lo = value.charCodeAt(++i);
+                        c = 65536 | ((hi & 1023) << 10) | (lo & 1023);
+                        b.push(240 | (c >> 18), 128 | ((c >> 12) & 63), 128 | ((c >> 6) & 63), 128 | (c & 63));
+                    }
+                }
+                else {
+                    if ((c & 64512) === 56320) {
+                        // Invalid low surrogate.
+                        b.push(239, 191, 189);
+                    }
+                    else {
+                        b.push(224 | (c >> 12), 128 | ((c >> 6) & 63), 128 | (c & 63));
+                    }
+                }
+            }
+        }
+    }
+    return new Uint8Array(b);
+}
+function percentEncodedBytes_(value) {
+    let decoded;
+    try {
+        decoded = decodeURIComponent(value);
+    }
+    catch (e) {
+        throw invalidFormat(StringFormat.DATA_URL, 'Malformed data URL.');
+    }
+    return utf8Bytes_(decoded);
+}
+function base64Bytes_(format, value) {
+    switch (format) {
+        case StringFormat.BASE64: {
+            const hasMinus = value.indexOf('-') !== -1;
+            const hasUnder = value.indexOf('_') !== -1;
+            if (hasMinus || hasUnder) {
+                const invalidChar = hasMinus ? '-' : '_';
+                throw invalidFormat(format, "Invalid character '" +
+                    invalidChar +
+                    "' found: is it base64url encoded?");
+            }
+            break;
+        }
+        case StringFormat.BASE64URL: {
+            const hasPlus = value.indexOf('+') !== -1;
+            const hasSlash = value.indexOf('/') !== -1;
+            if (hasPlus || hasSlash) {
+                const invalidChar = hasPlus ? '+' : '/';
+                throw invalidFormat(format, "Invalid character '" + invalidChar + "' found: is it base64 encoded?");
+            }
+            value = value.replace(/-/g, '+').replace(/_/g, '/');
+            break;
+        }
+        // do nothing
+    }
+    let bytes;
+    try {
+        bytes = decodeBase64(value);
+    }
+    catch (e) {
+        if (e.message.includes('polyfill')) {
+            throw e;
+        }
+        throw invalidFormat(format, 'Invalid character found');
+    }
+    const array = new Uint8Array(bytes.length);
+    for (let i = 0; i < bytes.length; i++) {
+        array[i] = bytes.charCodeAt(i);
+    }
+    return array;
+}
+class DataURLParts {
+    constructor(dataURL) {
+        this.base64 = false;
+        this.contentType = null;
+        const matches = dataURL.match(/^data:([^,]+)?,/);
+        if (matches === null) {
+            throw invalidFormat(StringFormat.DATA_URL, "Must be formatted 'data:[<mediatype>][;base64],<data>");
+        }
+        const middle = matches[1] || null;
+        if (middle != null) {
+            this.base64 = endsWith(middle, ';base64');
+            this.contentType = this.base64
+                ? middle.substring(0, middle.length - ';base64'.length)
+                : middle;
+        }
+        this.rest = dataURL.substring(dataURL.indexOf(',') + 1);
+    }
+}
+function dataURLBytes_(dataUrl) {
+    const parts = new DataURLParts(dataUrl);
+    if (parts.base64) {
+        return base64Bytes_(StringFormat.BASE64, parts.rest);
+    }
+    else {
+        return percentEncodedBytes_(parts.rest);
+    }
+}
+function dataURLContentType_(dataUrl) {
+    const parts = new DataURLParts(dataUrl);
+    return parts.contentType;
+}
+function endsWith(s, end) {
+    const longEnough = s.length >= end.length;
+    if (!longEnough) {
+        return false;
+    }
+    return s.substring(s.length - end.length) === end;
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @param opt_elideCopy - If true, doesn't copy mutable input data
+ *     (e.g. Uint8Arrays). Pass true only if you know the objects will not be
+ *     modified after this blob's construction.
+ *
+ * @internal
+ */
+class FbsBlob {
+    constructor(data, elideCopy) {
+        let size = 0;
+        let blobType = '';
+        if (isNativeBlob(data)) {
+            this.data_ = data;
+            size = data.size;
+            blobType = data.type;
+        }
+        else if (data instanceof ArrayBuffer) {
+            if (elideCopy) {
+                this.data_ = new Uint8Array(data);
+            }
+            else {
+                this.data_ = new Uint8Array(data.byteLength);
+                this.data_.set(new Uint8Array(data));
+            }
+            size = this.data_.length;
+        }
+        else if (data instanceof Uint8Array) {
+            if (elideCopy) {
+                this.data_ = data;
+            }
+            else {
+                this.data_ = new Uint8Array(data.length);
+                this.data_.set(data);
+            }
+            size = data.length;
+        }
+        this.size_ = size;
+        this.type_ = blobType;
+    }
+    size() {
+        return this.size_;
+    }
+    type() {
+        return this.type_;
+    }
+    slice(startByte, endByte) {
+        if (isNativeBlob(this.data_)) {
+            const realBlob = this.data_;
+            const sliced = sliceBlob(realBlob, startByte, endByte);
+            if (sliced === null) {
+                return null;
+            }
+            return new FbsBlob(sliced);
+        }
+        else {
+            const slice = new Uint8Array(this.data_.buffer, startByte, endByte - startByte);
+            return new FbsBlob(slice, true);
+        }
+    }
+    static getBlob(...args) {
+        if (isNativeBlobDefined()) {
+            const blobby = args.map((val) => {
+                if (val instanceof FbsBlob) {
+                    return val.data_;
+                }
+                else {
+                    return val;
+                }
+            });
+            return new FbsBlob(getBlob$1.apply(null, blobby));
+        }
+        else {
+            const uint8Arrays = args.map((val) => {
+                if (isString(val)) {
+                    return dataFromString(StringFormat.RAW, val).data;
+                }
+                else {
+                    // Blobs don't exist, so this has to be a Uint8Array.
+                    return val.data_;
+                }
+            });
+            let finalLength = 0;
+            uint8Arrays.forEach((array) => {
+                finalLength += array.byteLength;
+            });
+            const merged = new Uint8Array(finalLength);
+            let index = 0;
+            uint8Arrays.forEach((array) => {
+                for (let i = 0; i < array.length; i++) {
+                    merged[index++] = array[i];
+                }
+            });
+            return new FbsBlob(merged, true);
+        }
+    }
+    uploadData() {
+        return this.data_;
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Returns the Object resulting from parsing the given JSON, or null if the
+ * given string does not represent a JSON object.
+ */
+function jsonObjectOrNull(s) {
+    let obj;
+    try {
+        obj = JSON.parse(s);
+    }
+    catch (e) {
+        return null;
+    }
+    if (isNonArrayObject(obj)) {
+        return obj;
+    }
+    else {
+        return null;
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Contains helper methods for manipulating paths.
+ */
+/**
+ * @return Null if the path is already at the root.
+ */
+function parent(path) {
+    if (path.length === 0) {
+        return null;
+    }
+    const index = path.lastIndexOf('/');
+    if (index === -1) {
+        return '';
+    }
+    const newPath = path.slice(0, index);
+    return newPath;
+}
+function child(path, childPath) {
+    const canonicalChildPath = childPath
+        .split('/')
+        .filter(component => component.length > 0)
+        .join('/');
+    if (path.length === 0) {
+        return canonicalChildPath;
+    }
+    else {
+        return path + '/' + canonicalChildPath;
+    }
+}
+/**
+ * Returns the last component of a path.
+ * '/foo/bar' -> 'bar'
+ * '/foo/bar/baz/' -> 'baz/'
+ * '/a' -> 'a'
+ */
+function lastComponent(path) {
+    const index = path.lastIndexOf('/', path.length - 2);
+    if (index === -1) {
+        return path;
+    }
+    else {
+        return path.slice(index + 1);
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+function noXform_(metadata, value) {
+    return value;
+}
+class Mapping {
+    constructor(server, local, writable, xform) {
+        this.server = server;
+        this.local = local || server;
+        this.writable = !!writable;
+        this.xform = xform || noXform_;
+    }
+}
+let mappings_ = null;
+function xformPath(fullPath) {
+    if (!isString(fullPath) || fullPath.length < 2) {
+        return fullPath;
+    }
+    else {
+        return lastComponent(fullPath);
+    }
+}
+function getMappings() {
+    if (mappings_) {
+        return mappings_;
+    }
+    const mappings = [];
+    mappings.push(new Mapping('bucket'));
+    mappings.push(new Mapping('generation'));
+    mappings.push(new Mapping('metageneration'));
+    mappings.push(new Mapping('name', 'fullPath', true));
+    function mappingsXformPath(_metadata, fullPath) {
+        return xformPath(fullPath);
+    }
+    const nameMapping = new Mapping('name');
+    nameMapping.xform = mappingsXformPath;
+    mappings.push(nameMapping);
+    /**
+     * Coerces the second param to a number, if it is defined.
+     */
+    function xformSize(_metadata, size) {
+        if (size !== undefined) {
+            return Number(size);
+        }
+        else {
+            return size;
+        }
+    }
+    const sizeMapping = new Mapping('size');
+    sizeMapping.xform = xformSize;
+    mappings.push(sizeMapping);
+    mappings.push(new Mapping('timeCreated'));
+    mappings.push(new Mapping('updated'));
+    mappings.push(new Mapping('md5Hash', null, true));
+    mappings.push(new Mapping('cacheControl', null, true));
+    mappings.push(new Mapping('contentDisposition', null, true));
+    mappings.push(new Mapping('contentEncoding', null, true));
+    mappings.push(new Mapping('contentLanguage', null, true));
+    mappings.push(new Mapping('contentType', null, true));
+    mappings.push(new Mapping('metadata', 'customMetadata', true));
+    mappings_ = mappings;
+    return mappings_;
+}
+function addRef(metadata, service) {
+    function generateRef() {
+        const bucket = metadata['bucket'];
+        const path = metadata['fullPath'];
+        const loc = new Location(bucket, path);
+        return service._makeStorageReference(loc);
+    }
+    Object.defineProperty(metadata, 'ref', { get: generateRef });
+}
+function fromResource(service, resource, mappings) {
+    const metadata = {};
+    metadata['type'] = 'file';
+    const len = mappings.length;
+    for (let i = 0; i < len; i++) {
+        const mapping = mappings[i];
+        metadata[mapping.local] = mapping.xform(metadata, resource[mapping.server]);
+    }
+    addRef(metadata, service);
+    return metadata;
+}
+function fromResourceString(service, resourceString, mappings) {
+    const obj = jsonObjectOrNull(resourceString);
+    if (obj === null) {
+        return null;
+    }
+    const resource = obj;
+    return fromResource(service, resource, mappings);
+}
+function downloadUrlFromResourceString(metadata, resourceString, host, protocol) {
+    const obj = jsonObjectOrNull(resourceString);
+    if (obj === null) {
+        return null;
+    }
+    if (!isString(obj['downloadTokens'])) {
+        // This can happen if objects are uploaded through GCS and retrieved
+        // through list, so we don't want to throw an Error.
+        return null;
+    }
+    const tokens = obj['downloadTokens'];
+    if (tokens.length === 0) {
+        return null;
+    }
+    const encode = encodeURIComponent;
+    const tokensList = tokens.split(',');
+    const urls = tokensList.map((token) => {
+        const bucket = metadata['bucket'];
+        const path = metadata['fullPath'];
+        const urlPart = '/b/' + encode(bucket) + '/o/' + encode(path);
+        const base = makeUrl(urlPart, host, protocol);
+        const queryString = makeQueryString({
+            alt: 'media',
+            token
+        });
+        return base + queryString;
+    });
+    return urls[0];
+}
+function toResourceString(metadata, mappings) {
+    const resource = {};
+    const len = mappings.length;
+    for (let i = 0; i < len; i++) {
+        const mapping = mappings[i];
+        if (mapping.writable) {
+            resource[mapping.server] = metadata[mapping.local];
+        }
+    }
+    return JSON.stringify(resource);
+}
+
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+const PREFIXES_KEY = 'prefixes';
+const ITEMS_KEY = 'items';
+function fromBackendResponse(service, bucket, resource) {
+    const listResult = {
+        prefixes: [],
+        items: [],
+        nextPageToken: resource['nextPageToken']
+    };
+    if (resource[PREFIXES_KEY]) {
+        for (const path of resource[PREFIXES_KEY]) {
+            const pathWithoutTrailingSlash = path.replace(/\/$/, '');
+            const reference = service._makeStorageReference(new Location(bucket, pathWithoutTrailingSlash));
+            listResult.prefixes.push(reference);
+        }
+    }
+    if (resource[ITEMS_KEY]) {
+        for (const item of resource[ITEMS_KEY]) {
+            const reference = service._makeStorageReference(new Location(bucket, item['name']));
+            listResult.items.push(reference);
+        }
+    }
+    return listResult;
+}
+function fromResponseString(service, bucket, resourceString) {
+    const obj = jsonObjectOrNull(resourceString);
+    if (obj === null) {
+        return null;
+    }
+    const resource = obj;
+    return fromBackendResponse(service, bucket, resource);
+}
+
+/**
+ * Contains a fully specified request.
+ *
+ * @param I - the type of the backend's network response.
+ * @param O - the output response type used by the rest of the SDK.
+ */
+class RequestInfo {
+    constructor(url, method, 
+    /**
+     * Returns the value with which to resolve the request's promise. Only called
+     * if the request is successful. Throw from this function to reject the
+     * returned Request's promise with the thrown error.
+     * Note: The XhrIo passed to this function may be reused after this callback
+     * returns. Do not keep a reference to it in any way.
+     */
+    handler, timeout) {
+        this.url = url;
+        this.method = method;
+        this.handler = handler;
+        this.timeout = timeout;
+        this.urlParams = {};
+        this.headers = {};
+        this.body = null;
+        this.errorHandler = null;
+        /**
+         * Called with the current number of bytes uploaded and total size (-1 if not
+         * computable) of the request body (i.e. used to report upload progress).
+         */
+        this.progressCallback = null;
+        this.successCodes = [200];
+        this.additionalRetryCodes = [];
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Throws the UNKNOWN StorageError if cndn is false.
+ */
+function handlerCheck(cndn) {
+    if (!cndn) {
+        throw unknown();
+    }
+}
+function metadataHandler(service, mappings) {
+    function handler(xhr, text) {
+        const metadata = fromResourceString(service, text, mappings);
+        handlerCheck(metadata !== null);
+        return metadata;
+    }
+    return handler;
+}
+function listHandler(service, bucket) {
+    function handler(xhr, text) {
+        const listResult = fromResponseString(service, bucket, text);
+        handlerCheck(listResult !== null);
+        return listResult;
+    }
+    return handler;
+}
+function downloadUrlHandler(service, mappings) {
+    function handler(xhr, text) {
+        const metadata = fromResourceString(service, text, mappings);
+        handlerCheck(metadata !== null);
+        return downloadUrlFromResourceString(metadata, text, service.host, service._protocol);
+    }
+    return handler;
+}
+function sharedErrorHandler(location) {
+    function errorHandler(xhr, err) {
+        let newErr;
+        if (xhr.getStatus() === 401) {
+            if (
+            // This exact message string is the only consistent part of the
+            // server's error response that identifies it as an App Check error.
+            xhr.getErrorText().includes('Firebase App Check token is invalid')) {
+                newErr = unauthorizedApp();
+            }
+            else {
+                newErr = unauthenticated();
+            }
+        }
+        else {
+            if (xhr.getStatus() === 402) {
+                newErr = quotaExceeded(location.bucket);
+            }
+            else {
+                if (xhr.getStatus() === 403) {
+                    newErr = unauthorized(location.path);
+                }
+                else {
+                    newErr = err;
+                }
+            }
+        }
+        newErr.status = xhr.getStatus();
+        newErr.serverResponse = err.serverResponse;
+        return newErr;
+    }
+    return errorHandler;
+}
+function objectErrorHandler(location) {
+    const shared = sharedErrorHandler(location);
+    function errorHandler(xhr, err) {
+        let newErr = shared(xhr, err);
+        if (xhr.getStatus() === 404) {
+            newErr = objectNotFound(location.path);
+        }
+        newErr.serverResponse = err.serverResponse;
+        return newErr;
+    }
+    return errorHandler;
+}
+function getMetadata$2(service, location, mappings) {
+    const urlPart = location.fullServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'GET';
+    const timeout = service.maxOperationRetryTime;
+    const requestInfo = new RequestInfo(url, method, metadataHandler(service, mappings), timeout);
+    requestInfo.errorHandler = objectErrorHandler(location);
+    return requestInfo;
+}
+function list$2(service, location, delimiter, pageToken, maxResults) {
+    const urlParams = {};
+    if (location.isRoot) {
+        urlParams['prefix'] = '';
+    }
+    else {
+        urlParams['prefix'] = location.path + '/';
+    }
+    if (delimiter && delimiter.length > 0) {
+        urlParams['delimiter'] = delimiter;
+    }
+    if (pageToken) {
+        urlParams['pageToken'] = pageToken;
+    }
+    if (maxResults) {
+        urlParams['maxResults'] = maxResults;
+    }
+    const urlPart = location.bucketOnlyServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'GET';
+    const timeout = service.maxOperationRetryTime;
+    const requestInfo = new RequestInfo(url, method, listHandler(service, location.bucket), timeout);
+    requestInfo.urlParams = urlParams;
+    requestInfo.errorHandler = sharedErrorHandler(location);
+    return requestInfo;
+}
+function getBytes$1(service, location, maxDownloadSizeBytes) {
+    const urlPart = location.fullServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol) + '?alt=media';
+    const method = 'GET';
+    const timeout = service.maxOperationRetryTime;
+    const requestInfo = new RequestInfo(url, method, (_, data) => data, timeout);
+    requestInfo.errorHandler = objectErrorHandler(location);
+    if (maxDownloadSizeBytes !== undefined) {
+        requestInfo.headers['Range'] = `bytes=0-${maxDownloadSizeBytes}`;
+        requestInfo.successCodes = [200 /* OK */, 206 /* Partial Content */];
+    }
+    return requestInfo;
+}
+function getDownloadUrl(service, location, mappings) {
+    const urlPart = location.fullServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'GET';
+    const timeout = service.maxOperationRetryTime;
+    const requestInfo = new RequestInfo(url, method, downloadUrlHandler(service, mappings), timeout);
+    requestInfo.errorHandler = objectErrorHandler(location);
+    return requestInfo;
+}
+function updateMetadata$2(service, location, metadata, mappings) {
+    const urlPart = location.fullServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'PATCH';
+    const body = toResourceString(metadata, mappings);
+    const headers = { 'Content-Type': 'application/json; charset=utf-8' };
+    const timeout = service.maxOperationRetryTime;
+    const requestInfo = new RequestInfo(url, method, metadataHandler(service, mappings), timeout);
+    requestInfo.headers = headers;
+    requestInfo.body = body;
+    requestInfo.errorHandler = objectErrorHandler(location);
+    return requestInfo;
+}
+function deleteObject$2(service, location) {
+    const urlPart = location.fullServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'DELETE';
+    const timeout = service.maxOperationRetryTime;
+    function handler(_xhr, _text) { }
+    const requestInfo = new RequestInfo(url, method, handler, timeout);
+    requestInfo.successCodes = [200, 204];
+    requestInfo.errorHandler = objectErrorHandler(location);
+    return requestInfo;
+}
+function determineContentType_(metadata, blob) {
+    return ((metadata && metadata['contentType']) ||
+        (blob && blob.type()) ||
+        'application/octet-stream');
+}
+function metadataForUpload_(location, blob, metadata) {
+    const metadataClone = Object.assign({}, metadata);
+    metadataClone['fullPath'] = location.path;
+    metadataClone['size'] = blob.size();
+    if (!metadataClone['contentType']) {
+        metadataClone['contentType'] = determineContentType_(null, blob);
+    }
+    return metadataClone;
+}
+/**
+ * Prepare RequestInfo for uploads as Content-Type: multipart.
+ */
+function multipartUpload(service, location, mappings, blob, metadata) {
+    const urlPart = location.bucketOnlyServerUrl();
+    const headers = {
+        'X-Goog-Upload-Protocol': 'multipart'
+    };
+    function genBoundary() {
+        let str = '';
+        for (let i = 0; i < 2; i++) {
+            str = str + Math.random().toString().slice(2);
+        }
+        return str;
+    }
+    const boundary = genBoundary();
+    headers['Content-Type'] = 'multipart/related; boundary=' + boundary;
+    const metadata_ = metadataForUpload_(location, blob, metadata);
+    const metadataString = toResourceString(metadata_, mappings);
+    const preBlobPart = '--' +
+        boundary +
+        '\r\n' +
+        'Content-Type: application/json; charset=utf-8\r\n\r\n' +
+        metadataString +
+        '\r\n--' +
+        boundary +
+        '\r\n' +
+        'Content-Type: ' +
+        metadata_['contentType'] +
+        '\r\n\r\n';
+    const postBlobPart = '\r\n--' + boundary + '--';
+    const body = FbsBlob.getBlob(preBlobPart, blob, postBlobPart);
+    if (body === null) {
+        throw cannotSliceBlob();
+    }
+    const urlParams = { name: metadata_['fullPath'] };
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'POST';
+    const timeout = service.maxUploadRetryTime;
+    const requestInfo = new RequestInfo(url, method, metadataHandler(service, mappings), timeout);
+    requestInfo.urlParams = urlParams;
+    requestInfo.headers = headers;
+    requestInfo.body = body.uploadData();
+    requestInfo.errorHandler = sharedErrorHandler(location);
+    return requestInfo;
+}
+/**
+ * @param current The number of bytes that have been uploaded so far.
+ * @param total The total number of bytes in the upload.
+ * @param opt_finalized True if the server has finished the upload.
+ * @param opt_metadata The upload metadata, should
+ *     only be passed if opt_finalized is true.
+ */
+class ResumableUploadStatus {
+    constructor(current, total, finalized, metadata) {
+        this.current = current;
+        this.total = total;
+        this.finalized = !!finalized;
+        this.metadata = metadata || null;
+    }
+}
+function checkResumeHeader_(xhr, allowed) {
+    let status = null;
+    try {
+        status = xhr.getResponseHeader('X-Goog-Upload-Status');
+    }
+    catch (e) {
+        handlerCheck(false);
+    }
+    const allowedStatus = allowed || ['active'];
+    handlerCheck(!!status && allowedStatus.indexOf(status) !== -1);
+    return status;
+}
+function createResumableUpload(service, location, mappings, blob, metadata) {
+    const urlPart = location.bucketOnlyServerUrl();
+    const metadataForUpload = metadataForUpload_(location, blob, metadata);
+    const urlParams = { name: metadataForUpload['fullPath'] };
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'POST';
+    const headers = {
+        'X-Goog-Upload-Protocol': 'resumable',
+        'X-Goog-Upload-Command': 'start',
+        'X-Goog-Upload-Header-Content-Length': `${blob.size()}`,
+        'X-Goog-Upload-Header-Content-Type': metadataForUpload['contentType'],
+        'Content-Type': 'application/json; charset=utf-8'
+    };
+    const body = toResourceString(metadataForUpload, mappings);
+    const timeout = service.maxUploadRetryTime;
+    function handler(xhr) {
+        checkResumeHeader_(xhr);
+        let url;
+        try {
+            url = xhr.getResponseHeader('X-Goog-Upload-URL');
+        }
+        catch (e) {
+            handlerCheck(false);
+        }
+        handlerCheck(isString(url));
+        return url;
+    }
+    const requestInfo = new RequestInfo(url, method, handler, timeout);
+    requestInfo.urlParams = urlParams;
+    requestInfo.headers = headers;
+    requestInfo.body = body;
+    requestInfo.errorHandler = sharedErrorHandler(location);
+    return requestInfo;
+}
+/**
+ * @param url From a call to fbs.requests.createResumableUpload.
+ */
+function getResumableUploadStatus(service, location, url, blob) {
+    const headers = { 'X-Goog-Upload-Command': 'query' };
+    function handler(xhr) {
+        const status = checkResumeHeader_(xhr, ['active', 'final']);
+        let sizeString = null;
+        try {
+            sizeString = xhr.getResponseHeader('X-Goog-Upload-Size-Received');
+        }
+        catch (e) {
+            handlerCheck(false);
+        }
+        if (!sizeString) {
+            // null or empty string
+            handlerCheck(false);
+        }
+        const size = Number(sizeString);
+        handlerCheck(!isNaN(size));
+        return new ResumableUploadStatus(size, blob.size(), status === 'final');
+    }
+    const method = 'POST';
+    const timeout = service.maxUploadRetryTime;
+    const requestInfo = new RequestInfo(url, method, handler, timeout);
+    requestInfo.headers = headers;
+    requestInfo.errorHandler = sharedErrorHandler(location);
+    return requestInfo;
+}
+/**
+ * Any uploads via the resumable upload API must transfer a number of bytes
+ * that is a multiple of this number.
+ */
+const RESUMABLE_UPLOAD_CHUNK_SIZE = 256 * 1024;
+/**
+ * @param url From a call to fbs.requests.createResumableUpload.
+ * @param chunkSize Number of bytes to upload.
+ * @param status The previous status.
+ *     If not passed or null, we start from the beginning.
+ * @throws fbs.Error If the upload is already complete, the passed in status
+ *     has a final size inconsistent with the blob, or the blob cannot be sliced
+ *     for upload.
+ */
+function continueResumableUpload(location, service, url, blob, chunkSize, mappings, status, progressCallback) {
+    // TODO(andysoto): standardize on internal asserts
+    // assert(!(opt_status && opt_status.finalized));
+    const status_ = new ResumableUploadStatus(0, 0);
+    if (status) {
+        status_.current = status.current;
+        status_.total = status.total;
+    }
+    else {
+        status_.current = 0;
+        status_.total = blob.size();
+    }
+    if (blob.size() !== status_.total) {
+        throw serverFileWrongSize();
+    }
+    const bytesLeft = status_.total - status_.current;
+    let bytesToUpload = bytesLeft;
+    if (chunkSize > 0) {
+        bytesToUpload = Math.min(bytesToUpload, chunkSize);
+    }
+    const startByte = status_.current;
+    const endByte = startByte + bytesToUpload;
+    let uploadCommand = '';
+    if (bytesToUpload === 0) {
+        uploadCommand = 'finalize';
+    }
+    else if (bytesLeft === bytesToUpload) {
+        uploadCommand = 'upload, finalize';
+    }
+    else {
+        uploadCommand = 'upload';
+    }
+    const headers = {
+        'X-Goog-Upload-Command': uploadCommand,
+        'X-Goog-Upload-Offset': `${status_.current}`
+    };
+    const body = blob.slice(startByte, endByte);
+    if (body === null) {
+        throw cannotSliceBlob();
+    }
+    function handler(xhr, text) {
+        // TODO(andysoto): Verify the MD5 of each uploaded range:
+        // the 'x-range-md5' header comes back with status code 308 responses.
+        // We'll only be able to bail out though, because you can't re-upload a
+        // range that you previously uploaded.
+        const uploadStatus = checkResumeHeader_(xhr, ['active', 'final']);
+        const newCurrent = status_.current + bytesToUpload;
+        const size = blob.size();
+        let metadata;
+        if (uploadStatus === 'final') {
+            metadata = metadataHandler(service, mappings)(xhr, text);
+        }
+        else {
+            metadata = null;
+        }
+        return new ResumableUploadStatus(newCurrent, size, uploadStatus === 'final', metadata);
+    }
+    const method = 'POST';
+    const timeout = service.maxUploadRetryTime;
+    const requestInfo = new RequestInfo(url, method, handler, timeout);
+    requestInfo.headers = headers;
+    requestInfo.body = body.uploadData();
+    requestInfo.progressCallback = progressCallback || null;
+    requestInfo.errorHandler = sharedErrorHandler(location);
+    return requestInfo;
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * An event that is triggered on a task.
+ * @internal
+ */
+const TaskEvent = {
+    /**
+     * For this event,
+     * <ul>
+     *   <li>The `next` function is triggered on progress updates and when the
+     *       task is paused/resumed with an `UploadTaskSnapshot` as the first
+     *       argument.</li>
+     *   <li>The `error` function is triggered if the upload is canceled or fails
+     *       for another reason.</li>
+     *   <li>The `complete` function is triggered if the upload completes
+     *       successfully.</li>
+     * </ul>
+     */
+    STATE_CHANGED: 'state_changed'
+};
+// type keys = keyof TaskState
+/**
+ * Represents the current state of a running upload.
+ * @internal
+ */
+const TaskState = {
+    /** The task is currently transferring data. */
+    RUNNING: 'running',
+    /** The task was paused by the user. */
+    PAUSED: 'paused',
+    /** The task completed successfully. */
+    SUCCESS: 'success',
+    /** The task was canceled. */
+    CANCELED: 'canceled',
+    /** The task failed with an error. */
+    ERROR: 'error'
+};
+function taskStateFromInternalTaskState(state) {
+    switch (state) {
+        case "running" /* InternalTaskState.RUNNING */:
+        case "pausing" /* InternalTaskState.PAUSING */:
+        case "canceling" /* InternalTaskState.CANCELING */:
+            return TaskState.RUNNING;
+        case "paused" /* InternalTaskState.PAUSED */:
+            return TaskState.PAUSED;
+        case "success" /* InternalTaskState.SUCCESS */:
+            return TaskState.SUCCESS;
+        case "canceled" /* InternalTaskState.CANCELED */:
+            return TaskState.CANCELED;
+        case "error" /* InternalTaskState.ERROR */:
+            return TaskState.ERROR;
+        default:
+            // TODO(andysoto): assert(false);
+            return TaskState.ERROR;
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+class Observer {
+    constructor(nextOrObserver, error, complete) {
+        const asFunctions = isFunction(nextOrObserver) || error != null || complete != null;
+        if (asFunctions) {
+            this.next = nextOrObserver;
+            this.error = error ?? undefined;
+            this.complete = complete ?? undefined;
+        }
+        else {
+            const observer = nextOrObserver;
+            this.next = observer.next;
+            this.error = observer.error;
+            this.complete = observer.complete;
+        }
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Returns a function that invokes f with its arguments asynchronously as a
+ * microtask, i.e. as soon as possible after the current script returns back
+ * into browser code.
+ */
+// eslint-disable-next-line @typescript-eslint/ban-types
+function async(f) {
+    return (...argsToForward) => {
+        // eslint-disable-next-line @typescript-eslint/no-floating-promises
+        Promise.resolve().then(() => f(...argsToForward));
+    };
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/** An override for the text-based Connection. Used in tests. */
+let textFactoryOverride = null;
+/**
+ * Network layer for browsers. We use this instead of goog.net.XhrIo because
+ * goog.net.XhrIo is hyuuuuge and doesn't work in React Native on Android.
+ */
+class XhrConnection {
+    constructor() {
+        this.sent_ = false;
+        this.xhr_ = new XMLHttpRequest();
+        this.initXhr();
+        this.errorCode_ = ErrorCode.NO_ERROR;
+        this.sendPromise_ = new Promise(resolve => {
+            this.xhr_.addEventListener('abort', () => {
+                this.errorCode_ = ErrorCode.ABORT;
+                resolve();
+            });
+            this.xhr_.addEventListener('error', () => {
+                this.errorCode_ = ErrorCode.NETWORK_ERROR;
+                resolve();
+            });
+            this.xhr_.addEventListener('load', () => {
+                resolve();
+            });
+        });
+    }
+    send(url, method, isUsingEmulator, body, headers) {
+        if (this.sent_) {
+            throw internalError('cannot .send() more than once');
+        }
+        if (isCloudWorkstation(url) && isUsingEmulator) {
+            this.xhr_.withCredentials = true;
+        }
+        this.sent_ = true;
+        this.xhr_.open(method, url, true);
+        if (headers !== undefined) {
+            for (const key in headers) {
+                if (headers.hasOwnProperty(key)) {
+                    this.xhr_.setRequestHeader(key, headers[key].toString());
+                }
+            }
+        }
+        if (body !== undefined) {
+            this.xhr_.send(body);
+        }
+        else {
+            this.xhr_.send();
+        }
+        return this.sendPromise_;
+    }
+    getErrorCode() {
+        if (!this.sent_) {
+            throw internalError('cannot .getErrorCode() before sending');
+        }
+        return this.errorCode_;
+    }
+    getStatus() {
+        if (!this.sent_) {
+            throw internalError('cannot .getStatus() before sending');
+        }
+        try {
+            return this.xhr_.status;
+        }
+        catch (e) {
+            return -1;
+        }
+    }
+    getResponse() {
+        if (!this.sent_) {
+            throw internalError('cannot .getResponse() before sending');
+        }
+        return this.xhr_.response;
+    }
+    getErrorText() {
+        if (!this.sent_) {
+            throw internalError('cannot .getErrorText() before sending');
+        }
+        return this.xhr_.statusText;
+    }
+    /** Aborts the request. */
+    abort() {
+        this.xhr_.abort();
+    }
+    getResponseHeader(header) {
+        return this.xhr_.getResponseHeader(header);
+    }
+    addUploadProgressListener(listener) {
+        if (this.xhr_.upload != null) {
+            this.xhr_.upload.addEventListener('progress', listener);
+        }
+    }
+    removeUploadProgressListener(listener) {
+        if (this.xhr_.upload != null) {
+            this.xhr_.upload.removeEventListener('progress', listener);
+        }
+    }
+}
+class XhrTextConnection extends XhrConnection {
+    initXhr() {
+        this.xhr_.responseType = 'text';
+    }
+}
+function newTextConnection() {
+    return textFactoryOverride ? textFactoryOverride() : new XhrTextConnection();
+}
+class XhrBytesConnection extends XhrConnection {
+    initXhr() {
+        this.xhr_.responseType = 'arraybuffer';
+    }
+}
+function newBytesConnection() {
+    return new XhrBytesConnection();
+}
+class XhrBlobConnection extends XhrConnection {
+    initXhr() {
+        this.xhr_.responseType = 'blob';
+    }
+}
+function newBlobConnection() {
+    return new XhrBlobConnection();
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Represents a blob being uploaded. Can be used to pause/resume/cancel the
+ * upload and manage callbacks for various events.
+ * @internal
+ */
+class UploadTask {
+    isExponentialBackoffExpired() {
+        return this.sleepTime > this.maxSleepTime;
+    }
+    /**
+     * @param ref - The firebaseStorage.Reference object this task came
+     *     from, untyped to avoid cyclic dependencies.
+     * @param blob - The blob to upload.
+     */
+    constructor(ref, blob, metadata = null) {
+        /**
+         * Number of bytes transferred so far.
+         */
+        this._transferred = 0;
+        this._needToFetchStatus = false;
+        this._needToFetchMetadata = false;
+        this._observers = [];
+        this._error = undefined;
+        this._uploadUrl = undefined;
+        this._request = undefined;
+        this._chunkMultiplier = 1;
+        this._resolve = undefined;
+        this._reject = undefined;
+        this._ref = ref;
+        this._blob = blob;
+        this._metadata = metadata;
+        this._mappings = getMappings();
+        this._resumable = this._shouldDoResumable(this._blob);
+        this._state = "running" /* InternalTaskState.RUNNING */;
+        this._errorHandler = error => {
+            this._request = undefined;
+            this._chunkMultiplier = 1;
+            if (error._codeEquals(StorageErrorCode.CANCELED)) {
+                this._needToFetchStatus = true;
+                this.completeTransitions_();
+            }
+            else {
+                const backoffExpired = this.isExponentialBackoffExpired();
+                if (isRetryStatusCode(error.status, [])) {
+                    if (backoffExpired) {
+                        error = retryLimitExceeded();
+                    }
+                    else {
+                        this.sleepTime = Math.max(this.sleepTime * 2, DEFAULT_MIN_SLEEP_TIME_MILLIS);
+                        this._needToFetchStatus = true;
+                        this.completeTransitions_();
+                        return;
+                    }
+                }
+                this._error = error;
+                this._transition("error" /* InternalTaskState.ERROR */);
+            }
+        };
+        this._metadataErrorHandler = error => {
+            this._request = undefined;
+            if (error._codeEquals(StorageErrorCode.CANCELED)) {
+                this.completeTransitions_();
+            }
+            else {
+                this._error = error;
+                this._transition("error" /* InternalTaskState.ERROR */);
+            }
+        };
+        this.sleepTime = 0;
+        this.maxSleepTime = this._ref.storage.maxUploadRetryTime;
+        this._promise = new Promise((resolve, reject) => {
+            this._resolve = resolve;
+            this._reject = reject;
+            this._start();
+        });
+        // Prevent uncaught rejections on the internal promise from bubbling out
+        // to the top level with a dummy handler.
+        this._promise.then(null, () => { });
+    }
+    _makeProgressCallback() {
+        const sizeBefore = this._transferred;
+        return loaded => this._updateProgress(sizeBefore + loaded);
+    }
+    _shouldDoResumable(blob) {
+        return blob.size() > 256 * 1024;
+    }
+    _start() {
+        if (this._state !== "running" /* InternalTaskState.RUNNING */) {
+            // This can happen if someone pauses us in a resume callback, for example.
+            return;
+        }
+        if (this._request !== undefined) {
+            return;
+        }
+        if (this._resumable) {
+            if (this._uploadUrl === undefined) {
+                this._createResumable();
+            }
+            else {
+                if (this._needToFetchStatus) {
+                    this._fetchStatus();
+                }
+                else {
+                    if (this._needToFetchMetadata) {
+                        // Happens if we miss the metadata on upload completion.
+                        this._fetchMetadata();
+                    }
+                    else {
+                        this.pendingTimeout = setTimeout(() => {
+                            this.pendingTimeout = undefined;
+                            this._continueUpload();
+                        }, this.sleepTime);
+                    }
+                }
+            }
+        }
+        else {
+            this._oneShotUpload();
+        }
+    }
+    _resolveToken(callback) {
+        // eslint-disable-next-line @typescript-eslint/no-floating-promises
+        Promise.all([
+            this._ref.storage._getAuthToken(),
+            this._ref.storage._getAppCheckToken()
+        ]).then(([authToken, appCheckToken]) => {
+            switch (this._state) {
+                case "running" /* InternalTaskState.RUNNING */:
+                    callback(authToken, appCheckToken);
+                    break;
+                case "canceling" /* InternalTaskState.CANCELING */:
+                    this._transition("canceled" /* InternalTaskState.CANCELED */);
+                    break;
+                case "pausing" /* InternalTaskState.PAUSING */:
+                    this._transition("paused" /* InternalTaskState.PAUSED */);
+                    break;
+            }
+        });
+    }
+    // TODO(andysoto): assert false
+    _createResumable() {
+        this._resolveToken((authToken, appCheckToken) => {
+            const requestInfo = createResumableUpload(this._ref.storage, this._ref._location, this._mappings, this._blob, this._metadata);
+            const createRequest = this._ref.storage._makeRequest(requestInfo, newTextConnection, authToken, appCheckToken);
+            this._request = createRequest;
+            createRequest.getPromise().then((url) => {
+                this._request = undefined;
+                this._uploadUrl = url;
+                this._needToFetchStatus = false;
+                this.completeTransitions_();
+            }, this._errorHandler);
+        });
+    }
+    _fetchStatus() {
+        // TODO(andysoto): assert(this.uploadUrl_ !== null);
+        const url = this._uploadUrl;
+        this._resolveToken((authToken, appCheckToken) => {
+            const requestInfo = getResumableUploadStatus(this._ref.storage, this._ref._location, url, this._blob);
+            const statusRequest = this._ref.storage._makeRequest(requestInfo, newTextConnection, authToken, appCheckToken);
+            this._request = statusRequest;
+            statusRequest.getPromise().then(status => {
+                status = status;
+                this._request = undefined;
+                this._updateProgress(status.current);
+                this._needToFetchStatus = false;
+                if (status.finalized) {
+                    this._needToFetchMetadata = true;
+                }
+                this.completeTransitions_();
+            }, this._errorHandler);
+        });
+    }
+    _continueUpload() {
+        const chunkSize = RESUMABLE_UPLOAD_CHUNK_SIZE * this._chunkMultiplier;
+        const status = new ResumableUploadStatus(this._transferred, this._blob.size());
+        // TODO(andysoto): assert(this.uploadUrl_ !== null);
+        const url = this._uploadUrl;
+        this._resolveToken((authToken, appCheckToken) => {
+            let requestInfo;
+            try {
+                requestInfo = continueResumableUpload(this._ref._location, this._ref.storage, url, this._blob, chunkSize, this._mappings, status, this._makeProgressCallback());
+            }
+            catch (e) {
+                this._error = e;
+                this._transition("error" /* InternalTaskState.ERROR */);
+                return;
+            }
+            const uploadRequest = this._ref.storage._makeRequest(requestInfo, newTextConnection, authToken, appCheckToken, 
+            /*retry=*/ false // Upload requests should not be retried as each retry should be preceded by another query request. Which is handled in this file.
+            );
+            this._request = uploadRequest;
+            uploadRequest.getPromise().then((newStatus) => {
+                this._increaseMultiplier();
+                this._request = undefined;
+                this._updateProgress(newStatus.current);
+                if (newStatus.finalized) {
+                    this._metadata = newStatus.metadata;
+                    this._transition("success" /* InternalTaskState.SUCCESS */);
+                }
+                else {
+                    this.completeTransitions_();
+                }
+            }, this._errorHandler);
+        });
+    }
+    _increaseMultiplier() {
+        const currentSize = RESUMABLE_UPLOAD_CHUNK_SIZE * this._chunkMultiplier;
+        // Max chunk size is 32M.
+        if (currentSize * 2 < 32 * 1024 * 1024) {
+            this._chunkMultiplier *= 2;
+        }
+    }
+    _fetchMetadata() {
+        this._resolveToken((authToken, appCheckToken) => {
+            const requestInfo = getMetadata$2(this._ref.storage, this._ref._location, this._mappings);
+            const metadataRequest = this._ref.storage._makeRequest(requestInfo, newTextConnection, authToken, appCheckToken);
+            this._request = metadataRequest;
+            metadataRequest.getPromise().then(metadata => {
+                this._request = undefined;
+                this._metadata = metadata;
+                this._transition("success" /* InternalTaskState.SUCCESS */);
+            }, this._metadataErrorHandler);
+        });
+    }
+    _oneShotUpload() {
+        this._resolveToken((authToken, appCheckToken) => {
+            const requestInfo = multipartUpload(this._ref.storage, this._ref._location, this._mappings, this._blob, this._metadata);
+            const multipartRequest = this._ref.storage._makeRequest(requestInfo, newTextConnection, authToken, appCheckToken);
+            this._request = multipartRequest;
+            multipartRequest.getPromise().then(metadata => {
+                this._request = undefined;
+                this._metadata = metadata;
+                this._updateProgress(this._blob.size());
+                this._transition("success" /* InternalTaskState.SUCCESS */);
+            }, this._errorHandler);
+        });
+    }
+    _updateProgress(transferred) {
+        const old = this._transferred;
+        this._transferred = transferred;
+        // A progress update can make the "transferred" value smaller (e.g. a
+        // partial upload not completed by server, after which the "transferred"
+        // value may reset to the value at the beginning of the request).
+        if (this._transferred !== old) {
+            this._notifyObservers();
+        }
+    }
+    _transition(state) {
+        if (this._state === state) {
+            return;
+        }
+        switch (state) {
+            case "canceling" /* InternalTaskState.CANCELING */:
+            case "pausing" /* InternalTaskState.PAUSING */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.RUNNING ||
+                //        this.state_ === InternalTaskState.PAUSING);
+                this._state = state;
+                if (this._request !== undefined) {
+                    this._request.cancel();
+                }
+                else if (this.pendingTimeout) {
+                    clearTimeout(this.pendingTimeout);
+                    this.pendingTimeout = undefined;
+                    this.completeTransitions_();
+                }
+                break;
+            case "running" /* InternalTaskState.RUNNING */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.PAUSED ||
+                //        this.state_ === InternalTaskState.PAUSING);
+                const wasPaused = this._state === "paused" /* InternalTaskState.PAUSED */;
+                this._state = state;
+                if (wasPaused) {
+                    this._notifyObservers();
+                    this._start();
+                }
+                break;
+            case "paused" /* InternalTaskState.PAUSED */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.PAUSING);
+                this._state = state;
+                this._notifyObservers();
+                break;
+            case "canceled" /* InternalTaskState.CANCELED */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.PAUSED ||
+                //        this.state_ === InternalTaskState.CANCELING);
+                this._error = canceled();
+                this._state = state;
+                this._notifyObservers();
+                break;
+            case "error" /* InternalTaskState.ERROR */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.RUNNING ||
+                //        this.state_ === InternalTaskState.PAUSING ||
+                //        this.state_ === InternalTaskState.CANCELING);
+                this._state = state;
+                this._notifyObservers();
+                break;
+            case "success" /* InternalTaskState.SUCCESS */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.RUNNING ||
+                //        this.state_ === InternalTaskState.PAUSING ||
+                //        this.state_ === InternalTaskState.CANCELING);
+                this._state = state;
+                this._notifyObservers();
+                break;
+        }
+    }
+    completeTransitions_() {
+        switch (this._state) {
+            case "pausing" /* InternalTaskState.PAUSING */:
+                this._transition("paused" /* InternalTaskState.PAUSED */);
+                break;
+            case "canceling" /* InternalTaskState.CANCELING */:
+                this._transition("canceled" /* InternalTaskState.CANCELED */);
+                break;
+            case "running" /* InternalTaskState.RUNNING */:
+                this._start();
+                break;
+        }
+    }
+    /**
+     * A snapshot of the current task state.
+     */
+    get snapshot() {
+        const externalState = taskStateFromInternalTaskState(this._state);
+        return {
+            bytesTransferred: this._transferred,
+            totalBytes: this._blob.size(),
+            state: externalState,
+            metadata: this._metadata,
+            task: this,
+            ref: this._ref
+        };
+    }
+    /**
+     * Adds a callback for an event.
+     * @param type - The type of event to listen for.
+     * @param nextOrObserver -
+     *     The `next` function, which gets called for each item in
+     *     the event stream, or an observer object with some or all of these three
+     *     properties (`next`, `error`, `complete`).
+     * @param error - A function that gets called with a `StorageError`
+     *     if the event stream ends due to an error.
+     * @param completed - A function that gets called if the
+     *     event stream ends normally.
+     * @returns
+     *     If only the event argument is passed, returns a function you can use to
+     *     add callbacks (see the examples above). If more than just the event
+     *     argument is passed, returns a function you can call to unregister the
+     *     callbacks.
+     */
+    on(type, nextOrObserver, error, completed) {
+        // Note: `type` isn't being used. Its type is also incorrect. TaskEvent should not be a string.
+        const observer = new Observer(nextOrObserver || undefined, error || undefined, completed || undefined);
+        this._addObserver(observer);
+        return () => {
+            this._removeObserver(observer);
+        };
+    }
+    /**
+     * This object behaves like a Promise, and resolves with its snapshot data
+     * when the upload completes.
+     * @param onFulfilled - The fulfillment callback. Promise chaining works as normal.
+     * @param onRejected - The rejection callback.
+     */
+    then(onFulfilled, onRejected) {
+        // These casts are needed so that TypeScript can infer the types of the
+        // resulting Promise.
+        return this._promise.then(onFulfilled, onRejected);
+    }
+    /**
+     * Equivalent to calling `then(null, onRejected)`.
+     */
+    catch(onRejected) {
+        return this.then(null, onRejected);
+    }
+    /**
+     * Adds the given observer.
+     */
+    _addObserver(observer) {
+        this._observers.push(observer);
+        this._notifyObserver(observer);
+    }
+    /**
+     * Removes the given observer.
+     */
+    _removeObserver(observer) {
+        const i = this._observers.indexOf(observer);
+        if (i !== -1) {
+            this._observers.splice(i, 1);
+        }
+    }
+    _notifyObservers() {
+        this._finishPromise();
+        const observers = this._observers.slice();
+        observers.forEach(observer => {
+            this._notifyObserver(observer);
+        });
+    }
+    _finishPromise() {
+        if (this._resolve !== undefined) {
+            let triggered = true;
+            switch (taskStateFromInternalTaskState(this._state)) {
+                case TaskState.SUCCESS:
+                    async(this._resolve.bind(null, this.snapshot))();
+                    break;
+                case TaskState.CANCELED:
+                case TaskState.ERROR:
+                    const toCall = this._reject;
+                    async(toCall.bind(null, this._error))();
+                    break;
+                default:
+                    triggered = false;
+                    break;
+            }
+            if (triggered) {
+                this._resolve = undefined;
+                this._reject = undefined;
+            }
+        }
+    }
+    _notifyObserver(observer) {
+        const externalState = taskStateFromInternalTaskState(this._state);
+        switch (externalState) {
+            case TaskState.RUNNING:
+            case TaskState.PAUSED:
+                if (observer.next) {
+                    async(observer.next.bind(observer, this.snapshot))();
+                }
+                break;
+            case TaskState.SUCCESS:
+                if (observer.complete) {
+                    async(observer.complete.bind(observer))();
+                }
+                break;
+            case TaskState.CANCELED:
+            case TaskState.ERROR:
+                if (observer.error) {
+                    async(observer.error.bind(observer, this._error))();
+                }
+                break;
+            default:
+                // TODO(andysoto): assert(false);
+                if (observer.error) {
+                    async(observer.error.bind(observer, this._error))();
+                }
+        }
+    }
+    /**
+     * Resumes a paused task. Has no effect on a currently running or failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    resume() {
+        const valid = this._state === "paused" /* InternalTaskState.PAUSED */ ||
+            this._state === "pausing" /* InternalTaskState.PAUSING */;
+        if (valid) {
+            this._transition("running" /* InternalTaskState.RUNNING */);
+        }
+        return valid;
+    }
+    /**
+     * Pauses a currently running task. Has no effect on a paused or failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    pause() {
+        const valid = this._state === "running" /* InternalTaskState.RUNNING */;
+        if (valid) {
+            this._transition("pausing" /* InternalTaskState.PAUSING */);
+        }
+        return valid;
+    }
+    /**
+     * Cancels a currently running or paused task. Has no effect on a complete or
+     * failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    cancel() {
+        const valid = this._state === "running" /* InternalTaskState.RUNNING */ ||
+            this._state === "pausing" /* InternalTaskState.PAUSING */;
+        if (valid) {
+            this._transition("canceling" /* InternalTaskState.CANCELING */);
+        }
+        return valid;
+    }
+}
+
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Provides methods to interact with a bucket in the Firebase Storage service.
+ * @internal
+ * @param _location - An fbs.location, or the URL at
+ *     which to base this object, in one of the following forms:
+ *         gs://<bucket>/<object-path>
+ *         http[s]://firebasestorage.googleapis.com/
+ *                     <api-version>/b/<bucket>/o/<object-path>
+ *     Any query or fragment strings will be ignored in the http[s]
+ *     format. If no value is passed, the storage object will use a URL based on
+ *     the project ID of the base firebase.App instance.
+ */
+class Reference {
+    constructor(_service, location) {
+        this._service = _service;
+        if (location instanceof Location) {
+            this._location = location;
+        }
+        else {
+            this._location = Location.makeFromUrl(location, _service.host);
+        }
+    }
+    /**
+     * Returns the URL for the bucket and path this object references,
+     *     in the form gs://<bucket>/<object-path>
+     * @override
+     */
+    toString() {
+        return 'gs://' + this._location.bucket + '/' + this._location.path;
+    }
+    _newRef(service, location) {
+        return new Reference(service, location);
+    }
+    /**
+     * A reference to the root of this object's bucket.
+     */
+    get root() {
+        const location = new Location(this._location.bucket, '');
+        return this._newRef(this._service, location);
+    }
+    /**
+     * The name of the bucket containing this reference's object.
+     */
+    get bucket() {
+        return this._location.bucket;
+    }
+    /**
+     * The full path of this object.
+     */
+    get fullPath() {
+        return this._location.path;
+    }
+    /**
+     * The short name of this object, which is the last component of the full path.
+     * For example, if fullPath is 'full/path/image.png', name is 'image.png'.
+     */
+    get name() {
+        return lastComponent(this._location.path);
+    }
+    /**
+     * The `StorageService` instance this `StorageReference` is associated with.
+     */
+    get storage() {
+        return this._service;
+    }
+    /**
+     * A `StorageReference` pointing to the parent location of this `StorageReference`, or null if
+     * this reference is the root.
+     */
+    get parent() {
+        const newPath = parent(this._location.path);
+        if (newPath === null) {
+            return null;
+        }
+        const location = new Location(this._location.bucket, newPath);
+        return new Reference(this._service, location);
+    }
+    /**
+     * Utility function to throw an error in methods that do not accept a root reference.
+     */
+    _throwIfRoot(name) {
+        if (this._location.path === '') {
+            throw invalidRootOperation(name);
+        }
+    }
+}
+/**
+ * Download the bytes at the object's location.
+ * @returns A Promise containing the downloaded bytes.
+ */
+function getBytesInternal(ref, maxDownloadSizeBytes) {
+    ref._throwIfRoot('getBytes');
+    const requestInfo = getBytes$1(ref.storage, ref._location, maxDownloadSizeBytes);
+    return ref.storage
+        .makeRequestWithTokens(requestInfo, newBytesConnection)
+        .then(bytes => maxDownloadSizeBytes !== undefined
+        ? // GCS may not honor the Range header for small files
+            bytes.slice(0, maxDownloadSizeBytes)
+        : bytes);
+}
+/**
+ * Download the bytes at the object's location.
+ * @returns A Promise containing the downloaded blob.
+ */
+function getBlobInternal(ref, maxDownloadSizeBytes) {
+    ref._throwIfRoot('getBlob');
+    const requestInfo = getBytes$1(ref.storage, ref._location, maxDownloadSizeBytes);
+    return ref.storage
+        .makeRequestWithTokens(requestInfo, newBlobConnection)
+        .then(blob => maxDownloadSizeBytes !== undefined
+        ? // GCS may not honor the Range header for small files
+            blob.slice(0, maxDownloadSizeBytes)
+        : blob);
+}
+/**
+ * Uploads data to this object's location.
+ * The upload is not resumable.
+ *
+ * @param ref - StorageReference where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the newly uploaded data.
+ * @returns A Promise containing an UploadResult
+ */
+function uploadBytes$1(ref, data, metadata) {
+    ref._throwIfRoot('uploadBytes');
+    const requestInfo = multipartUpload(ref.storage, ref._location, getMappings(), new FbsBlob(data, true), metadata);
+    return ref.storage
+        .makeRequestWithTokens(requestInfo, newTextConnection)
+        .then(finalMetadata => {
+        return {
+            metadata: finalMetadata,
+            ref
+        };
+    });
+}
+/**
+ * Uploads data to this object's location.
+ * The upload can be paused and resumed, and exposes progress updates.
+ * @public
+ * @param ref - StorageReference where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the newly uploaded data.
+ * @returns An UploadTask
+ */
+function uploadBytesResumable$1(ref, data, metadata) {
+    ref._throwIfRoot('uploadBytesResumable');
+    return new UploadTask(ref, new FbsBlob(data), metadata);
+}
+/**
+ * Uploads a string to this object's location.
+ * The upload is not resumable.
+ * @public
+ * @param ref - StorageReference where string should be uploaded.
+ * @param value - The string to upload.
+ * @param format - The format of the string to upload.
+ * @param metadata - Metadata for the newly uploaded string.
+ * @returns A Promise containing an UploadResult
+ */
+function uploadString$1(ref, value, format = StringFormat.RAW, metadata) {
+    ref._throwIfRoot('uploadString');
+    const data = dataFromString(format, value);
+    const metadataClone = { ...metadata };
+    if (metadataClone['contentType'] == null && data.contentType != null) {
+        metadataClone['contentType'] = data.contentType;
+    }
+    return uploadBytes$1(ref, data.data, metadataClone);
+}
+/**
+ * List all items (files) and prefixes (folders) under this storage reference.
+ *
+ * This is a helper method for calling list() repeatedly until there are
+ * no more results. The default pagination size is 1000.
+ *
+ * Note: The results may not be consistent if objects are changed while this
+ * operation is running.
+ *
+ * Warning: listAll may potentially consume too many resources if there are
+ * too many results.
+ * @public
+ * @param ref - StorageReference to get list from.
+ *
+ * @returns A Promise that resolves with all the items and prefixes under
+ *      the current storage reference. `prefixes` contains references to
+ *      sub-directories and `items` contains references to objects in this
+ *      folder. `nextPageToken` is never returned.
+ */
+function listAll$1(ref) {
+    const accumulator = {
+        prefixes: [],
+        items: []
+    };
+    return listAllHelper(ref, accumulator).then(() => accumulator);
+}
+/**
+ * Separated from listAll because async functions can't use "arguments".
+ * @param ref
+ * @param accumulator
+ * @param pageToken
+ */
+async function listAllHelper(ref, accumulator, pageToken) {
+    const opt = {
+        // maxResults is 1000 by default.
+        pageToken
+    };
+    const nextPage = await list$1(ref, opt);
+    accumulator.prefixes.push(...nextPage.prefixes);
+    accumulator.items.push(...nextPage.items);
+    if (nextPage.nextPageToken != null) {
+        await listAllHelper(ref, accumulator, nextPage.nextPageToken);
+    }
+}
+/**
+ * List items (files) and prefixes (folders) under this storage reference.
+ *
+ * List API is only available for Firebase Rules Version 2.
+ *
+ * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'
+ * delimited folder structure.
+ * Refer to GCS's List API if you want to learn more.
+ *
+ * To adhere to Firebase Rules's Semantics, Firebase Storage does not
+ * support objects whose paths end with "/" or contain two consecutive
+ * "/"s. Firebase Storage List API will filter these unsupported objects.
+ * list() may fail if there are too many unsupported objects in the bucket.
+ * @public
+ *
+ * @param ref - StorageReference to get list from.
+ * @param options - See ListOptions for details.
+ * @returns A Promise that resolves with the items and prefixes.
+ *      `prefixes` contains references to sub-folders and `items`
+ *      contains references to objects in this folder. `nextPageToken`
+ *      can be used to get the rest of the results.
+ */
+function list$1(ref, options) {
+    if (options != null) {
+        if (typeof options.maxResults === 'number') {
+            validateNumber('options.maxResults', 
+            /* minValue= */ 1, 
+            /* maxValue= */ 1000, options.maxResults);
+        }
+    }
+    const op = options || {};
+    const requestInfo = list$2(ref.storage, ref._location, 
+    /*delimiter= */ '/', op.pageToken, op.maxResults);
+    return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);
+}
+/**
+ * A `Promise` that resolves with the metadata for this object. If this
+ * object doesn't exist or metadata cannot be retrieved, the promise is
+ * rejected.
+ * @public
+ * @param ref - StorageReference to get metadata from.
+ */
+function getMetadata$1(ref) {
+    ref._throwIfRoot('getMetadata');
+    const requestInfo = getMetadata$2(ref.storage, ref._location, getMappings());
+    return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);
+}
+/**
+ * Updates the metadata for this object.
+ * @public
+ * @param ref - StorageReference to update metadata for.
+ * @param metadata - The new metadata for the object.
+ *     Only values that have been explicitly set will be changed. Explicitly
+ *     setting a value to null will remove the metadata.
+ * @returns A `Promise` that resolves
+ *     with the new metadata for this object.
+ *     See `firebaseStorage.Reference.prototype.getMetadata`
+ */
+function updateMetadata$1(ref, metadata) {
+    ref._throwIfRoot('updateMetadata');
+    const requestInfo = updateMetadata$2(ref.storage, ref._location, metadata, getMappings());
+    return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);
+}
+/**
+ * Returns the download URL for the given Reference.
+ * @public
+ * @returns A `Promise` that resolves with the download
+ *     URL for this object.
+ */
+function getDownloadURL$1(ref) {
+    ref._throwIfRoot('getDownloadURL');
+    const requestInfo = getDownloadUrl(ref.storage, ref._location, getMappings());
+    return ref.storage
+        .makeRequestWithTokens(requestInfo, newTextConnection)
+        .then(url => {
+        if (url === null) {
+            throw noDownloadURL();
+        }
+        return url;
+    });
+}
+/**
+ * Deletes the object at this location.
+ * @public
+ * @param ref - StorageReference for object to delete.
+ * @returns A `Promise` that resolves if the deletion succeeds.
+ */
+function deleteObject$1(ref) {
+    ref._throwIfRoot('deleteObject');
+    const requestInfo = deleteObject$2(ref.storage, ref._location);
+    return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);
+}
+/**
+ * Returns reference for object obtained by appending `childPath` to `ref`.
+ *
+ * @param ref - StorageReference to get child of.
+ * @param childPath - Child path from provided ref.
+ * @returns A reference to the object obtained by
+ * appending childPath, removing any duplicate, beginning, or trailing
+ * slashes.
+ *
+ */
+function _getChild$1(ref, childPath) {
+    const newPath = child(ref._location.path, childPath);
+    const location = new Location(ref._location.bucket, newPath);
+    return new Reference(ref.storage, location);
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+function isUrl(path) {
+    return /^[A-Za-z]+:\/\//.test(path);
+}
+/**
+ * Returns a firebaseStorage.Reference for the given url.
+ */
+function refFromURL(service, url) {
+    return new Reference(service, url);
+}
+/**
+ * Returns a firebaseStorage.Reference for the given path in the default
+ * bucket.
+ */
+function refFromPath(ref, path) {
+    if (ref instanceof FirebaseStorageImpl) {
+        const service = ref;
+        if (service._bucket == null) {
+            throw noDefaultBucket();
+        }
+        const reference = new Reference(service, service._bucket);
+        if (path != null) {
+            return refFromPath(reference, path);
+        }
+        else {
+            return reference;
+        }
+    }
+    else {
+        // ref is a Reference
+        if (path !== undefined) {
+            return _getChild$1(ref, path);
+        }
+        else {
+            return ref;
+        }
+    }
+}
+function ref$1(serviceOrRef, pathOrUrl) {
+    if (pathOrUrl && isUrl(pathOrUrl)) {
+        if (serviceOrRef instanceof FirebaseStorageImpl) {
+            return refFromURL(serviceOrRef, pathOrUrl);
+        }
+        else {
+            throw invalidArgument('To use ref(service, url), the first argument must be a Storage instance.');
+        }
+    }
+    else {
+        return refFromPath(serviceOrRef, pathOrUrl);
+    }
+}
+function extractBucket(host, config) {
+    const bucketString = config?.[CONFIG_STORAGE_BUCKET_KEY];
+    if (bucketString == null) {
+        return null;
+    }
+    return Location.makeFromBucketSpec(bucketString, host);
+}
+function connectStorageEmulator$1(storage, host, port, options = {}) {
+    storage.host = `${host}:${port}`;
+    const useSsl = isCloudWorkstation(host);
+    // Workaround to get cookies in Firebase Studio
+    if (useSsl) {
+        void pingServer(`https://${storage.host}/b`);
+        updateEmulatorBanner('Storage', true);
+    }
+    storage._isUsingEmulator = true;
+    storage._protocol = useSsl ? 'https' : 'http';
+    const { mockUserToken } = options;
+    if (mockUserToken) {
+        storage._overrideAuthToken =
+            typeof mockUserToken === 'string'
+                ? mockUserToken
+                : createMockUserToken(mockUserToken, storage.app.options.projectId);
+    }
+}
+/**
+ * A service that provides Firebase Storage Reference instances.
+ * @param opt_url - gs:// url to a custom Storage Bucket
+ *
+ * @internal
+ */
+class FirebaseStorageImpl {
+    constructor(
+    /**
+     * FirebaseApp associated with this StorageService instance.
+     */
+    app, _authProvider, 
+    /**
+     * @internal
+     */
+    _appCheckProvider, 
+    /**
+     * @internal
+     */
+    _url, _firebaseVersion, _isUsingEmulator = false) {
+        this.app = app;
+        this._authProvider = _authProvider;
+        this._appCheckProvider = _appCheckProvider;
+        this._url = _url;
+        this._firebaseVersion = _firebaseVersion;
+        this._isUsingEmulator = _isUsingEmulator;
+        this._bucket = null;
+        /**
+         * This string can be in the formats:
+         * - host
+         * - host:port
+         */
+        this._host = DEFAULT_HOST;
+        this._protocol = 'https';
+        this._appId = null;
+        this._deleted = false;
+        this._maxOperationRetryTime = DEFAULT_MAX_OPERATION_RETRY_TIME;
+        this._maxUploadRetryTime = DEFAULT_MAX_UPLOAD_RETRY_TIME;
+        this._requests = new Set();
+        if (_url != null) {
+            this._bucket = Location.makeFromBucketSpec(_url, this._host);
+        }
+        else {
+            this._bucket = extractBucket(this._host, this.app.options);
+        }
+    }
+    /**
+     * The host string for this service, in the form of `host` or
+     * `host:port`.
+     */
+    get host() {
+        return this._host;
+    }
+    set host(host) {
+        this._host = host;
+        if (this._url != null) {
+            this._bucket = Location.makeFromBucketSpec(this._url, host);
+        }
+        else {
+            this._bucket = extractBucket(host, this.app.options);
+        }
+    }
+    /**
+     * The maximum time to retry uploads in milliseconds.
+     */
+    get maxUploadRetryTime() {
+        return this._maxUploadRetryTime;
+    }
+    set maxUploadRetryTime(time) {
+        validateNumber('time', 
+        /* minValue=*/ 0, 
+        /* maxValue= */ Number.POSITIVE_INFINITY, time);
+        this._maxUploadRetryTime = time;
+    }
+    /**
+     * The maximum time to retry operations other than uploads or downloads in
+     * milliseconds.
+     */
+    get maxOperationRetryTime() {
+        return this._maxOperationRetryTime;
+    }
+    set maxOperationRetryTime(time) {
+        validateNumber('time', 
+        /* minValue=*/ 0, 
+        /* maxValue= */ Number.POSITIVE_INFINITY, time);
+        this._maxOperationRetryTime = time;
+    }
+    async _getAuthToken() {
+        if (this._overrideAuthToken) {
+            return this._overrideAuthToken;
+        }
+        const auth = this._authProvider.getImmediate({ optional: true });
+        if (auth) {
+            const tokenData = await auth.getToken();
+            if (tokenData !== null) {
+                return tokenData.accessToken;
+            }
+        }
+        return null;
+    }
+    async _getAppCheckToken() {
+        if (_isFirebaseServerApp(this.app) && this.app.settings.appCheckToken) {
+            return this.app.settings.appCheckToken;
+        }
+        const appCheck = this._appCheckProvider.getImmediate({ optional: true });
+        if (appCheck) {
+            const result = await appCheck.getToken();
+            // TODO: What do we want to do if there is an error getting the token?
+            // Context: appCheck.getToken() will never throw even if an error happened. In the error case, a dummy token will be
+            // returned along with an error field describing the error. In general, we shouldn't care about the error condition and just use
+            // the token (actual or dummy) to send requests.
+            return result.token;
+        }
+        return null;
+    }
+    /**
+     * Stop running requests and prevent more from being created.
+     */
+    _delete() {
+        if (!this._deleted) {
+            this._deleted = true;
+            this._requests.forEach(request => request.cancel());
+            this._requests.clear();
+        }
+        return Promise.resolve();
+    }
+    /**
+     * Returns a new firebaseStorage.Reference object referencing this StorageService
+     * at the given Location.
+     */
+    _makeStorageReference(loc) {
+        return new Reference(this, loc);
+    }
+    /**
+     * @param requestInfo - HTTP RequestInfo object
+     * @param authToken - Firebase auth token
+     */
+    _makeRequest(requestInfo, requestFactory, authToken, appCheckToken, retry = true) {
+        if (!this._deleted) {
+            const request = makeRequest(requestInfo, this._appId, authToken, appCheckToken, requestFactory, this._firebaseVersion, retry, this._isUsingEmulator);
+            this._requests.add(request);
+            // Request removes itself from set when complete.
+            request.getPromise().then(() => this._requests.delete(request), () => this._requests.delete(request));
+            return request;
+        }
+        else {
+            return new FailRequest(appDeleted());
+        }
+    }
+    async makeRequestWithTokens(requestInfo, requestFactory) {
+        const [authToken, appCheckToken] = await Promise.all([
+            this._getAuthToken(),
+            this._getAppCheckToken()
+        ]);
+        return this._makeRequest(requestInfo, requestFactory, authToken, appCheckToken).getPromise();
+    }
+}
+
+const name = "@firebase/storage";
+const version = "0.14.0";
+
+/**
+ * @license
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Type constant for Firebase Storage.
+ */
+const STORAGE_TYPE = 'storage';
+
+/**
+ * @license
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Downloads the data at the object's location. Returns an error if the object
+ * is not found.
+ *
+ * To use this functionality, you have to whitelist your app's origin in your
+ * Cloud Storage bucket. See also
+ * https://cloud.google.com/storage/docs/configuring-cors
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A Promise containing the object's bytes
+ */
+function getBytes(ref, maxDownloadSizeBytes) {
+    ref = getModularInstance(ref);
+    return getBytesInternal(ref, maxDownloadSizeBytes);
+}
+/**
+ * Uploads data to this object's location.
+ * The upload is not resumable.
+ * @public
+ * @param ref - {@link StorageReference} where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the data to upload.
+ * @returns A Promise containing an UploadResult
+ */
+function uploadBytes(ref, data, metadata) {
+    ref = getModularInstance(ref);
+    return uploadBytes$1(ref, data, metadata);
+}
+/**
+ * Uploads a string to this object's location.
+ * The upload is not resumable.
+ * @public
+ * @param ref - {@link StorageReference} where string should be uploaded.
+ * @param value - The string to upload.
+ * @param format - The format of the string to upload.
+ * @param metadata - Metadata for the string to upload.
+ * @returns A Promise containing an UploadResult
+ */
+function uploadString(ref, value, format, metadata) {
+    ref = getModularInstance(ref);
+    return uploadString$1(ref, value, format, metadata);
+}
+/**
+ * Uploads data to this object's location.
+ * The upload can be paused and resumed, and exposes progress updates.
+ * @public
+ * @param ref - {@link StorageReference} where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the data to upload.
+ * @returns An UploadTask
+ */
+function uploadBytesResumable(ref, data, metadata) {
+    ref = getModularInstance(ref);
+    return uploadBytesResumable$1(ref, data, metadata);
+}
+/**
+ * A `Promise` that resolves with the metadata for this object. If this
+ * object doesn't exist or metadata cannot be retrieved, the promise is
+ * rejected.
+ * @public
+ * @param ref - {@link StorageReference} to get metadata from.
+ */
+function getMetadata(ref) {
+    ref = getModularInstance(ref);
+    return getMetadata$1(ref);
+}
+/**
+ * Updates the metadata for this object.
+ * @public
+ * @param ref - {@link StorageReference} to update metadata for.
+ * @param metadata - The new metadata for the object.
+ *     Only values that have been explicitly set will be changed. Explicitly
+ *     setting a value to null will remove the metadata.
+ * @returns A `Promise` that resolves with the new metadata for this object.
+ */
+function updateMetadata(ref, metadata) {
+    ref = getModularInstance(ref);
+    return updateMetadata$1(ref, metadata);
+}
+/**
+ * List items (files) and prefixes (folders) under this storage reference.
+ *
+ * List API is only available for Firebase Rules Version 2.
+ *
+ * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'
+ * delimited folder structure.
+ * Refer to GCS's List API if you want to learn more.
+ *
+ * To adhere to Firebase Rules's Semantics, Firebase Storage does not
+ * support objects whose paths end with "/" or contain two consecutive
+ * "/"s. Firebase Storage List API will filter these unsupported objects.
+ * list() may fail if there are too many unsupported objects in the bucket.
+ * @public
+ *
+ * @param ref - {@link StorageReference} to get list from.
+ * @param options - See {@link ListOptions} for details.
+ * @returns A `Promise` that resolves with the items and prefixes.
+ *      `prefixes` contains references to sub-folders and `items`
+ *      contains references to objects in this folder. `nextPageToken`
+ *      can be used to get the rest of the results.
+ */
+function list(ref, options) {
+    ref = getModularInstance(ref);
+    return list$1(ref, options);
+}
+/**
+ * List all items (files) and prefixes (folders) under this storage reference.
+ *
+ * This is a helper method for calling list() repeatedly until there are
+ * no more results. The default pagination size is 1000.
+ *
+ * Note: The results may not be consistent if objects are changed while this
+ * operation is running.
+ *
+ * Warning: `listAll` may potentially consume too many resources if there are
+ * too many results.
+ * @public
+ * @param ref - {@link StorageReference} to get list from.
+ *
+ * @returns A `Promise` that resolves with all the items and prefixes under
+ *      the current storage reference. `prefixes` contains references to
+ *      sub-directories and `items` contains references to objects in this
+ *      folder. `nextPageToken` is never returned.
+ */
+function listAll(ref) {
+    ref = getModularInstance(ref);
+    return listAll$1(ref);
+}
+/**
+ * Returns the download URL for the given {@link StorageReference}.
+ * @public
+ * @param ref - {@link StorageReference} to get the download URL for.
+ * @returns A `Promise` that resolves with the download
+ *     URL for this object.
+ */
+function getDownloadURL(ref) {
+    ref = getModularInstance(ref);
+    return getDownloadURL$1(ref);
+}
+/**
+ * Deletes the object at this location.
+ * @public
+ * @param ref - {@link StorageReference} for object to delete.
+ * @returns A `Promise` that resolves if the deletion succeeds.
+ */
+function deleteObject(ref) {
+    ref = getModularInstance(ref);
+    return deleteObject$1(ref);
+}
+function ref(serviceOrRef, pathOrUrl) {
+    serviceOrRef = getModularInstance(serviceOrRef);
+    return ref$1(serviceOrRef, pathOrUrl);
+}
+/**
+ * @internal
+ */
+function _getChild(ref, childPath) {
+    return _getChild$1(ref, childPath);
+}
+/**
+ * Gets a {@link FirebaseStorage} instance for the given Firebase app.
+ * @public
+ * @param app - Firebase app to get {@link FirebaseStorage} instance for.
+ * @param bucketUrl - The gs:// url to your Firebase Storage Bucket.
+ * If not passed, uses the app's default Storage Bucket.
+ * @returns A {@link FirebaseStorage} instance.
+ */
+function getStorage(app = getApp(), bucketUrl) {
+    app = getModularInstance(app);
+    const storageProvider = _getProvider(app, STORAGE_TYPE);
+    const storageInstance = storageProvider.getImmediate({
+        identifier: bucketUrl
+    });
+    const emulator = getDefaultEmulatorHostnameAndPort('storage');
+    if (emulator) {
+        connectStorageEmulator(storageInstance, ...emulator);
+    }
+    return storageInstance;
+}
+/**
+ * Modify this {@link FirebaseStorage} instance to communicate with the Cloud Storage emulator.
+ *
+ * @param storage - The {@link FirebaseStorage} instance
+ * @param host - The emulator host (ex: localhost)
+ * @param port - The emulator port (ex: 5001)
+ * @param options - Emulator options. `options.mockUserToken` is the mock auth
+ * token to use for unit testing Security Rules.
+ * @public
+ */
+function connectStorageEmulator(storage, host, port, options = {}) {
+    connectStorageEmulator$1(storage, host, port, options);
+}
+
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Downloads the data at the object's location. Returns an error if the object
+ * is not found.
+ *
+ * To use this functionality, you have to whitelist your app's origin in your
+ * Cloud Storage bucket. See also
+ * https://cloud.google.com/storage/docs/configuring-cors
+ *
+ * This API is not available in Node.
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A Promise that resolves with a Blob containing the object's bytes
+ */
+function getBlob(ref, maxDownloadSizeBytes) {
+    ref = getModularInstance(ref);
+    return getBlobInternal(ref, maxDownloadSizeBytes);
+}
+/**
+ * Downloads the data at the object's location. Raises an error event if the
+ * object is not found.
+ *
+ * This API is only available in Node.
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A stream with the object's data as bytes
+ */
+function getStream(ref, maxDownloadSizeBytes) {
+    throw new Error('getStream() is only supported by NodeJS builds');
+}
+
+/**
+ * Cloud Storage for Firebase
+ *
+ * @packageDocumentation
+ */
+function factory(container, { instanceIdentifier: url }) {
+    const app = container.getProvider('app').getImmediate();
+    const authProvider = container.getProvider('auth-internal');
+    const appCheckProvider = container.getProvider('app-check-internal');
+    return new FirebaseStorageImpl(app, authProvider, appCheckProvider, url, SDK_VERSION);
+}
+function registerStorage() {
+    _registerComponent(new Component(STORAGE_TYPE, factory, "PUBLIC" /* ComponentType.PUBLIC */).setMultipleInstances(true));
+    //RUNTIME_ENV will be replaced during the compilation to "node" for nodejs and an empty string for browser
+    registerVersion(name, version, '');
+    // BUILD_TARGET will be replaced by values like esm, cjs, etc during the compilation
+    registerVersion(name, version, 'esm2020');
+}
+registerStorage();
+
+export { StorageError, StorageErrorCode, StringFormat, FbsBlob as _FbsBlob, Location as _Location, TaskEvent as _TaskEvent, TaskState as _TaskState, UploadTask as _UploadTask, dataFromString as _dataFromString, _getChild, invalidArgument as _invalidArgument, invalidRootOperation as _invalidRootOperation, connectStorageEmulator, deleteObject, getBlob, getBytes, getDownloadURL, getMetadata, getStorage, getStream, list, listAll, ref, updateMetadata, uploadBytes, uploadBytesResumable, uploadString };
+//# sourceMappingURL=index.esm.js.map
diff --git a/frontend-old/node_modules/@firebase/storage/dist/index.esm.js.map b/frontend-old/node_modules/@firebase/storage/dist/index.esm.js.map
new file mode 100644
index 0000000..12789a8
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/index.esm.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.esm.js","sources":["../src/implementation/constants.ts","../src/implementation/error.ts","../src/implementation/location.ts","../src/implementation/failrequest.ts","../src/implementation/backoff.ts","../src/implementation/type.ts","../src/implementation/url.ts","../src/implementation/connection.ts","../src/implementation/utils.ts","../src/implementation/request.ts","../src/implementation/fs.ts","../src/platform/browser/base64.ts","../src/implementation/string.ts","../src/implementation/blob.ts","../src/implementation/json.ts","../src/implementation/path.ts","../src/implementation/metadata.ts","../src/implementation/list.ts","../src/implementation/requestinfo.ts","../src/implementation/requests.ts","../src/implementation/taskenums.ts","../src/implementation/observer.ts","../src/implementation/async.ts","../src/platform/browser/connection.ts","../src/task.ts","../src/reference.ts","../src/service.ts","../src/constants.ts","../src/api.ts","../src/api.browser.ts","../src/index.ts"],"sourcesContent":["/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * @fileoverview Constants used in the Firebase Storage library.\n */\n\n/**\n * Domain name for firebase storage.\n */\nexport const DEFAULT_HOST = 'firebasestorage.googleapis.com';\n\n/**\n * The key in Firebase config json for the storage bucket.\n */\nexport const CONFIG_STORAGE_BUCKET_KEY = 'storageBucket';\n\n/**\n * 2 minutes\n *\n * The timeout for all operations except upload.\n */\nexport const DEFAULT_MAX_OPERATION_RETRY_TIME = 2 * 60 * 1000;\n\n/**\n * 10 minutes\n *\n * The timeout for upload.\n */\nexport const DEFAULT_MAX_UPLOAD_RETRY_TIME = 10 * 60 * 1000;\n\n/**\n * 1 second\n */\nexport const DEFAULT_MIN_SLEEP_TIME_MILLIS = 1000;\n\n/**\n * This is the value of Number.MIN_SAFE_INTEGER, which is not well supported\n * enough for us to use it directly.\n */\nexport const MIN_SAFE_INTEGER = -9007199254740991;\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { FirebaseError } from '@firebase/util';\n\nimport { CONFIG_STORAGE_BUCKET_KEY } from './constants';\n\n/**\n * An error returned by the Firebase Storage SDK.\n * @public\n */\nexport class StorageError extends FirebaseError {\n  private readonly _baseMessage: string;\n  /**\n   * Stores custom error data unique to the `StorageError`.\n   */\n  customData: { serverResponse: string | null } = { serverResponse: null };\n\n  /**\n   * @param code - A `StorageErrorCode` string to be prefixed with 'storage/' and\n   *  added to the end of the message.\n   * @param message  - Error message.\n   * @param status_ - Corresponding HTTP Status Code\n   */\n  constructor(code: StorageErrorCode, message: string, private status_ = 0) {\n    super(\n      prependCode(code),\n      `Firebase Storage: ${message} (${prependCode(code)})`\n    );\n    this._baseMessage = this.message;\n    // Without this, `instanceof StorageError`, in tests for example,\n    // returns false.\n    Object.setPrototypeOf(this, StorageError.prototype);\n  }\n\n  get status(): number {\n    return this.status_;\n  }\n\n  set status(status: number) {\n    this.status_ = status;\n  }\n\n  /**\n   * Compares a `StorageErrorCode` against this error's code, filtering out the prefix.\n   */\n  _codeEquals(code: StorageErrorCode): boolean {\n    return prependCode(code) === this.code;\n  }\n\n  /**\n   * Optional response message that was added by the server.\n   */\n  get serverResponse(): null | string {\n    return this.customData.serverResponse;\n  }\n\n  set serverResponse(serverResponse: string | null) {\n    this.customData.serverResponse = serverResponse;\n    if (this.customData.serverResponse) {\n      this.message = `${this._baseMessage}\\n${this.customData.serverResponse}`;\n    } else {\n      this.message = this._baseMessage;\n    }\n  }\n}\n\nexport const errors = {};\n\n/**\n * @public\n * Error codes that can be attached to `StorageError` objects.\n */\nexport enum StorageErrorCode {\n  // Shared between all platforms\n  UNKNOWN = 'unknown',\n  OBJECT_NOT_FOUND = 'object-not-found',\n  BUCKET_NOT_FOUND = 'bucket-not-found',\n  PROJECT_NOT_FOUND = 'project-not-found',\n  QUOTA_EXCEEDED = 'quota-exceeded',\n  UNAUTHENTICATED = 'unauthenticated',\n  UNAUTHORIZED = 'unauthorized',\n  UNAUTHORIZED_APP = 'unauthorized-app',\n  RETRY_LIMIT_EXCEEDED = 'retry-limit-exceeded',\n  INVALID_CHECKSUM = 'invalid-checksum',\n  CANCELED = 'canceled',\n  // JS specific\n  INVALID_EVENT_NAME = 'invalid-event-name',\n  INVALID_URL = 'invalid-url',\n  INVALID_DEFAULT_BUCKET = 'invalid-default-bucket',\n  NO_DEFAULT_BUCKET = 'no-default-bucket',\n  CANNOT_SLICE_BLOB = 'cannot-slice-blob',\n  SERVER_FILE_WRONG_SIZE = 'server-file-wrong-size',\n  NO_DOWNLOAD_URL = 'no-download-url',\n  INVALID_ARGUMENT = 'invalid-argument',\n  INVALID_ARGUMENT_COUNT = 'invalid-argument-count',\n  APP_DELETED = 'app-deleted',\n  INVALID_ROOT_OPERATION = 'invalid-root-operation',\n  INVALID_FORMAT = 'invalid-format',\n  INTERNAL_ERROR = 'internal-error',\n  UNSUPPORTED_ENVIRONMENT = 'unsupported-environment'\n}\n\nexport function prependCode(code: StorageErrorCode): string {\n  return 'storage/' + code;\n}\n\nexport function unknown(): StorageError {\n  const message =\n    'An unknown error occurred, please check the error payload for ' +\n    'server response.';\n  return new StorageError(StorageErrorCode.UNKNOWN, message);\n}\n\nexport function objectNotFound(path: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.OBJECT_NOT_FOUND,\n    \"Object '\" + path + \"' does not exist.\"\n  );\n}\n\nexport function bucketNotFound(bucket: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.BUCKET_NOT_FOUND,\n    \"Bucket '\" + bucket + \"' does not exist.\"\n  );\n}\n\nexport function projectNotFound(project: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.PROJECT_NOT_FOUND,\n    \"Project '\" + project + \"' does not exist.\"\n  );\n}\n\nexport function quotaExceeded(bucket: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.QUOTA_EXCEEDED,\n    \"Quota for bucket '\" +\n      bucket +\n      \"' exceeded, please view quota on \" +\n      'https://firebase.google.com/pricing/.'\n  );\n}\n\nexport function unauthenticated(): StorageError {\n  const message =\n    'User is not authenticated, please authenticate using Firebase ' +\n    'Authentication and try again.';\n  return new StorageError(StorageErrorCode.UNAUTHENTICATED, message);\n}\n\nexport function unauthorizedApp(): StorageError {\n  return new StorageError(\n    StorageErrorCode.UNAUTHORIZED_APP,\n    'This app does not have permission to access Firebase Storage on this project.'\n  );\n}\n\nexport function unauthorized(path: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.UNAUTHORIZED,\n    \"User does not have permission to access '\" + path + \"'.\"\n  );\n}\n\nexport function retryLimitExceeded(): StorageError {\n  return new StorageError(\n    StorageErrorCode.RETRY_LIMIT_EXCEEDED,\n    'Max retry time for operation exceeded, please try again.'\n  );\n}\n\nexport function invalidChecksum(\n  path: string,\n  checksum: string,\n  calculated: string\n): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_CHECKSUM,\n    \"Uploaded/downloaded object '\" +\n      path +\n      \"' has checksum '\" +\n      checksum +\n      \"' which does not match '\" +\n      calculated +\n      \"'. Please retry the upload/download.\"\n  );\n}\n\nexport function canceled(): StorageError {\n  return new StorageError(\n    StorageErrorCode.CANCELED,\n    'User canceled the upload/download.'\n  );\n}\n\nexport function invalidEventName(name: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_EVENT_NAME,\n    \"Invalid event name '\" + name + \"'.\"\n  );\n}\n\nexport function invalidUrl(url: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_URL,\n    \"Invalid URL '\" + url + \"'.\"\n  );\n}\n\nexport function invalidDefaultBucket(bucket: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_DEFAULT_BUCKET,\n    \"Invalid default bucket '\" + bucket + \"'.\"\n  );\n}\n\nexport function noDefaultBucket(): StorageError {\n  return new StorageError(\n    StorageErrorCode.NO_DEFAULT_BUCKET,\n    'No default bucket ' +\n      \"found. Did you set the '\" +\n      CONFIG_STORAGE_BUCKET_KEY +\n      \"' property when initializing the app?\"\n  );\n}\n\nexport function cannotSliceBlob(): StorageError {\n  return new StorageError(\n    StorageErrorCode.CANNOT_SLICE_BLOB,\n    'Cannot slice blob for upload. Please retry the upload.'\n  );\n}\n\nexport function serverFileWrongSize(): StorageError {\n  return new StorageError(\n    StorageErrorCode.SERVER_FILE_WRONG_SIZE,\n    'Server recorded incorrect upload file size, please retry the upload.'\n  );\n}\n\nexport function noDownloadURL(): StorageError {\n  return new StorageError(\n    StorageErrorCode.NO_DOWNLOAD_URL,\n    'The given file does not have any download URLs.'\n  );\n}\n\nexport function missingPolyFill(polyFill: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.UNSUPPORTED_ENVIRONMENT,\n    `${polyFill} is missing. Make sure to install the required polyfills. See https://firebase.google.com/docs/web/environments-js-sdk#polyfills for more information.`\n  );\n}\n\n/**\n * @internal\n */\nexport function invalidArgument(message: string): StorageError {\n  return new StorageError(StorageErrorCode.INVALID_ARGUMENT, message);\n}\n\nexport function invalidArgumentCount(\n  argMin: number,\n  argMax: number,\n  fnName: string,\n  real: number\n): StorageError {\n  let countPart;\n  let plural;\n  if (argMin === argMax) {\n    countPart = argMin;\n    plural = argMin === 1 ? 'argument' : 'arguments';\n  } else {\n    countPart = 'between ' + argMin + ' and ' + argMax;\n    plural = 'arguments';\n  }\n  return new StorageError(\n    StorageErrorCode.INVALID_ARGUMENT_COUNT,\n    'Invalid argument count in `' +\n      fnName +\n      '`: Expected ' +\n      countPart +\n      ' ' +\n      plural +\n      ', received ' +\n      real +\n      '.'\n  );\n}\n\nexport function appDeleted(): StorageError {\n  return new StorageError(\n    StorageErrorCode.APP_DELETED,\n    'The Firebase app was deleted.'\n  );\n}\n\n/**\n * @param name - The name of the operation that was invalid.\n *\n * @internal\n */\nexport function invalidRootOperation(name: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_ROOT_OPERATION,\n    \"The operation '\" +\n      name +\n      \"' cannot be performed on a root reference, create a non-root \" +\n      \"reference using child, such as .child('file.png').\"\n  );\n}\n\n/**\n * @param format - The format that was not valid.\n * @param message - A message describing the format violation.\n */\nexport function invalidFormat(format: string, message: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_FORMAT,\n    \"String does not match format '\" + format + \"': \" + message\n  );\n}\n\n/**\n * @param message - A message describing the internal error.\n */\nexport function unsupportedEnvironment(message: string): StorageError {\n  throw new StorageError(StorageErrorCode.UNSUPPORTED_ENVIRONMENT, message);\n}\n\n/**\n * @param message - A message describing the internal error.\n */\nexport function internalError(message: string): StorageError {\n  throw new StorageError(\n    StorageErrorCode.INTERNAL_ERROR,\n    'Internal error: ' + message\n  );\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Functionality related to the parsing/composition of bucket/\n * object location.\n */\n\nimport { invalidDefaultBucket, invalidUrl } from './error';\nimport { DEFAULT_HOST } from './constants';\n\n/**\n * Firebase Storage location data.\n *\n * @internal\n */\nexport class Location {\n  private path_: string;\n\n  constructor(public readonly bucket: string, path: string) {\n    this.path_ = path;\n  }\n\n  get path(): string {\n    return this.path_;\n  }\n\n  get isRoot(): boolean {\n    return this.path.length === 0;\n  }\n\n  fullServerUrl(): string {\n    const encode = encodeURIComponent;\n    return '/b/' + encode(this.bucket) + '/o/' + encode(this.path);\n  }\n\n  bucketOnlyServerUrl(): string {\n    const encode = encodeURIComponent;\n    return '/b/' + encode(this.bucket) + '/o';\n  }\n\n  static makeFromBucketSpec(bucketString: string, host: string): Location {\n    let bucketLocation;\n    try {\n      bucketLocation = Location.makeFromUrl(bucketString, host);\n    } catch (e) {\n      // Not valid URL, use as-is. This lets you put bare bucket names in\n      // config.\n      return new Location(bucketString, '');\n    }\n    if (bucketLocation.path === '') {\n      return bucketLocation;\n    } else {\n      throw invalidDefaultBucket(bucketString);\n    }\n  }\n\n  static makeFromUrl(url: string, host: string): Location {\n    let location: Location | null = null;\n    const bucketDomain = '([A-Za-z0-9.\\\\-_]+)';\n\n    function gsModify(loc: Location): void {\n      if (loc.path.charAt(loc.path.length - 1) === '/') {\n        loc.path_ = loc.path_.slice(0, -1);\n      }\n    }\n    const gsPath = '(/(.*))?$';\n    const gsRegex = new RegExp('^gs://' + bucketDomain + gsPath, 'i');\n    const gsIndices = { bucket: 1, path: 3 };\n\n    function httpModify(loc: Location): void {\n      loc.path_ = decodeURIComponent(loc.path);\n    }\n    const version = 'v[A-Za-z0-9_]+';\n    const firebaseStorageHost = host.replace(/[.]/g, '\\\\.');\n    const firebaseStoragePath = '(/([^?#]*).*)?$';\n    const firebaseStorageRegExp = new RegExp(\n      `^https?://${firebaseStorageHost}/${version}/b/${bucketDomain}/o${firebaseStoragePath}`,\n      'i'\n    );\n    const firebaseStorageIndices = { bucket: 1, path: 3 };\n\n    const cloudStorageHost =\n      host === DEFAULT_HOST\n        ? '(?:storage.googleapis.com|storage.cloud.google.com)'\n        : host;\n    const cloudStoragePath = '([^?#]*)';\n    const cloudStorageRegExp = new RegExp(\n      `^https?://${cloudStorageHost}/${bucketDomain}/${cloudStoragePath}`,\n      'i'\n    );\n    const cloudStorageIndices = { bucket: 1, path: 2 };\n\n    const groups = [\n      { regex: gsRegex, indices: gsIndices, postModify: gsModify },\n      {\n        regex: firebaseStorageRegExp,\n        indices: firebaseStorageIndices,\n        postModify: httpModify\n      },\n      {\n        regex: cloudStorageRegExp,\n        indices: cloudStorageIndices,\n        postModify: httpModify\n      }\n    ];\n    for (let i = 0; i < groups.length; i++) {\n      const group = groups[i];\n      const captures = group.regex.exec(url);\n      if (captures) {\n        const bucketValue = captures[group.indices.bucket];\n        let pathValue = captures[group.indices.path];\n        if (!pathValue) {\n          pathValue = '';\n        }\n        location = new Location(bucketValue, pathValue);\n        group.postModify(location);\n        break;\n      }\n    }\n    if (location == null) {\n      throw invalidUrl(url);\n    }\n    return location;\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport { StorageError } from './error';\nimport { Request } from './request';\n\n/**\n * A request whose promise always fails.\n */\nexport class FailRequest<T> implements Request<T> {\n  promise_: Promise<T>;\n\n  constructor(error: StorageError) {\n    this.promise_ = Promise.reject<T>(error);\n  }\n\n  /** @inheritDoc */\n  getPromise(): Promise<T> {\n    return this.promise_;\n  }\n\n  /** @inheritDoc */\n  cancel(_appDelete = false): void {}\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Provides a method for running a function with exponential\n * backoff.\n */\ntype id = (p1: boolean) => void;\n\nexport { id };\n\n/**\n * Accepts a callback for an action to perform (`doRequest`),\n * and then a callback for when the backoff has completed (`backoffCompleteCb`).\n * The callback sent to start requires an argument to call (`onRequestComplete`).\n * When `start` calls `doRequest`, it passes a callback for when the request has\n * completed, `onRequestComplete`. Based on this, the backoff continues, with\n * another call to `doRequest` and the above loop continues until the timeout\n * is hit, or a successful response occurs.\n * @description\n * @param doRequest Callback to perform request\n * @param backoffCompleteCb Callback to call when backoff has been completed\n */\nexport function start(\n  doRequest: (\n    onRequestComplete: (success: boolean) => void,\n    canceled: boolean\n  ) => void,\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  backoffCompleteCb: (...args: any[]) => unknown,\n  timeout: number\n): id {\n  // TODO(andysoto): make this code cleaner (probably refactor into an actual\n  // type instead of a bunch of functions with state shared in the closure)\n  let waitSeconds = 1;\n  // Would type this as \"number\" but that doesn't work for Node so ¯\\_(ツ)_/¯\n  // TODO: find a way to exclude Node type definition for storage because storage only works in browser\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  let retryTimeoutId: any = null;\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  let globalTimeoutId: any = null;\n  let hitTimeout = false;\n  let cancelState = 0;\n\n  function canceled(): boolean {\n    return cancelState === 2;\n  }\n  let triggeredCallback = false;\n\n  function triggerCallback(...args: any[]): void {\n    if (!triggeredCallback) {\n      triggeredCallback = true;\n      backoffCompleteCb.apply(null, args);\n    }\n  }\n\n  function callWithDelay(millis: number): void {\n    retryTimeoutId = setTimeout(() => {\n      retryTimeoutId = null;\n      doRequest(responseHandler, canceled());\n    }, millis);\n  }\n\n  function clearGlobalTimeout(): void {\n    if (globalTimeoutId) {\n      clearTimeout(globalTimeoutId);\n    }\n  }\n\n  function responseHandler(success: boolean, ...args: any[]): void {\n    if (triggeredCallback) {\n      clearGlobalTimeout();\n      return;\n    }\n    if (success) {\n      clearGlobalTimeout();\n      triggerCallback.call(null, success, ...args);\n      return;\n    }\n    const mustStop = canceled() || hitTimeout;\n    if (mustStop) {\n      clearGlobalTimeout();\n      triggerCallback.call(null, success, ...args);\n      return;\n    }\n    if (waitSeconds < 64) {\n      /* TODO(andysoto): don't back off so quickly if we know we're offline. */\n      waitSeconds *= 2;\n    }\n    let waitMillis;\n    if (cancelState === 1) {\n      cancelState = 2;\n      waitMillis = 0;\n    } else {\n      waitMillis = (waitSeconds + Math.random()) * 1000;\n    }\n    callWithDelay(waitMillis);\n  }\n  let stopped = false;\n\n  function stop(wasTimeout: boolean): void {\n    if (stopped) {\n      return;\n    }\n    stopped = true;\n    clearGlobalTimeout();\n    if (triggeredCallback) {\n      return;\n    }\n    if (retryTimeoutId !== null) {\n      if (!wasTimeout) {\n        cancelState = 2;\n      }\n      clearTimeout(retryTimeoutId);\n      callWithDelay(0);\n    } else {\n      if (!wasTimeout) {\n        cancelState = 1;\n      }\n    }\n  }\n  callWithDelay(0);\n  globalTimeoutId = setTimeout(() => {\n    hitTimeout = true;\n    stop(true);\n  }, timeout);\n  return stop;\n}\n\n/**\n * Stops the retry loop from repeating.\n * If the function is currently \"in between\" retries, it is invoked immediately\n * with the second parameter as \"true\". Otherwise, it will be invoked once more\n * after the current invocation finishes iff the current invocation would have\n * triggered another retry.\n */\nexport function stop(id: id): void {\n  id(false);\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { invalidArgument } from './error';\n\nexport function isJustDef<T>(p: T | null | undefined): p is T | null {\n  return p !== void 0;\n}\n\n// eslint-disable-next-line @typescript-eslint/ban-types\nexport function isFunction(p: unknown): p is Function {\n  return typeof p === 'function';\n}\n\nexport function isNonArrayObject(p: unknown): boolean {\n  return typeof p === 'object' && !Array.isArray(p);\n}\n\nexport function isString(p: unknown): p is string {\n  return typeof p === 'string' || p instanceof String;\n}\n\nexport function isNativeBlob(p: unknown): p is Blob {\n  return isNativeBlobDefined() && p instanceof Blob;\n}\n\nexport function isNativeBlobDefined(): boolean {\n  return typeof Blob !== 'undefined';\n}\n\nexport function validateNumber(\n  argument: string,\n  minValue: number,\n  maxValue: number,\n  value: number\n): void {\n  if (value < minValue) {\n    throw invalidArgument(\n      `Invalid value for '${argument}'. Expected ${minValue} or greater.`\n    );\n  }\n  if (value > maxValue) {\n    throw invalidArgument(\n      `Invalid value for '${argument}'. Expected ${maxValue} or less.`\n    );\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Functions to create and manipulate URLs for the server API.\n */\nimport { UrlParams } from './requestinfo';\n\nexport function makeUrl(\n  urlPart: string,\n  host: string,\n  protocol: string\n): string {\n  let origin = host;\n  if (protocol == null) {\n    origin = `https://${host}`;\n  }\n  return `${protocol}://${origin}/v0${urlPart}`;\n}\n\nexport function makeQueryString(params: UrlParams): string {\n  const encode = encodeURIComponent;\n  let queryPart = '?';\n  for (const key in params) {\n    if (params.hasOwnProperty(key)) {\n      const nextPart = encode(key) + '=' + encode(params[key]);\n      queryPart = queryPart + nextPart + '&';\n    }\n  }\n\n  // Chop off the extra '&' or '?' on the end\n  queryPart = queryPart.slice(0, -1);\n  return queryPart;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/** Network headers */\nexport type Headers = Record<string, string>;\n\n/** Response type exposed by the networking APIs. */\nexport type ConnectionType =\n  | string\n  | ArrayBuffer\n  | Blob\n  | ReadableStream<Uint8Array>;\n\n/**\n * A lightweight wrapper around XMLHttpRequest with a\n * goog.net.XhrIo-like interface.\n *\n * You can create a new connection by invoking `newTextConnection()`,\n * `newBytesConnection()` or `newStreamConnection()`.\n */\nexport interface Connection<T extends ConnectionType> {\n  /**\n   * Sends a request to the provided URL.\n   *\n   * This method never rejects its promise. In case of encountering an error,\n   * it sets an error code internally which can be accessed by calling\n   * getErrorCode() by callers.\n   */\n  send(\n    url: string,\n    method: string,\n    isUsingEmulator: boolean,\n    body?: ArrayBufferView | Blob | string | null,\n    headers?: Headers\n  ): Promise<void>;\n\n  getErrorCode(): ErrorCode;\n\n  getStatus(): number;\n\n  getResponse(): T;\n\n  getErrorText(): string;\n\n  /**\n   * Abort the request.\n   */\n  abort(): void;\n\n  getResponseHeader(header: string): string | null;\n\n  addUploadProgressListener(listener: (p1: ProgressEvent) => void): void;\n\n  removeUploadProgressListener(listener: (p1: ProgressEvent) => void): void;\n}\n\n/**\n * Error codes for requests made by the XhrIo wrapper.\n */\nexport enum ErrorCode {\n  NO_ERROR = 0,\n  NETWORK_ERROR = 1,\n  ABORT = 2\n}\n","/**\n * @license\n * Copyright 2022 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * Checks the status code to see if the action should be retried.\n *\n * @param status Current HTTP status code returned by server.\n * @param additionalRetryCodes additional retry codes to check against\n */\nexport function isRetryStatusCode(\n  status: number,\n  additionalRetryCodes: number[]\n): boolean {\n  // The codes for which to retry came from this page:\n  // https://cloud.google.com/storage/docs/exponential-backoff\n  const isFiveHundredCode = status >= 500 && status < 600;\n  const extraRetryCodes = [\n    // Request Timeout: web server didn't receive full request in time.\n    408,\n    // Too Many Requests: you're getting rate-limited, basically.\n    429\n  ];\n  const isExtraRetryCode = extraRetryCodes.indexOf(status) !== -1;\n  const isAdditionalRetryCode = additionalRetryCodes.indexOf(status) !== -1;\n  return isFiveHundredCode || isExtraRetryCode || isAdditionalRetryCode;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Defines methods used to actually send HTTP requests from\n * abstract representations.\n */\n\nimport { id as backoffId, start, stop } from './backoff';\nimport { appDeleted, canceled, retryLimitExceeded, unknown } from './error';\nimport { ErrorHandler, RequestHandler, RequestInfo } from './requestinfo';\nimport { isJustDef } from './type';\nimport { makeQueryString } from './url';\nimport { Connection, ErrorCode, Headers, ConnectionType } from './connection';\nimport { isRetryStatusCode } from './utils';\n\nexport interface Request<T> {\n  getPromise(): Promise<T>;\n\n  /**\n   * Cancels the request. IMPORTANT: the promise may still be resolved with an\n   * appropriate value (if the request is finished before you call this method,\n   * but the promise has not yet been resolved), so don't just assume it will be\n   * rejected if you call this function.\n   * @param appDelete - True if the cancelation came from the app being deleted.\n   */\n  cancel(appDelete?: boolean): void;\n}\n\n/**\n * Handles network logic for all Storage Requests, including error reporting and\n * retries with backoff.\n *\n * @param I - the type of the backend's network response.\n * @param - O the output type used by the rest of the SDK. The conversion\n * happens in the specified `callback_`.\n */\nclass NetworkRequest<I extends ConnectionType, O> implements Request<O> {\n  private pendingConnection_: Connection<I> | null = null;\n  private backoffId_: backoffId | null = null;\n  private resolve_!: (value?: O | PromiseLike<O>) => void;\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  private reject_!: (reason?: any) => void;\n  private canceled_: boolean = false;\n  private appDelete_: boolean = false;\n  private promise_: Promise<O>;\n\n  constructor(\n    private url_: string,\n    private method_: string,\n    private headers_: Headers,\n    private body_: string | Blob | Uint8Array | null,\n    private successCodes_: number[],\n    private additionalRetryCodes_: number[],\n    private callback_: RequestHandler<I, O>,\n    private errorCallback_: ErrorHandler | null,\n    private timeout_: number,\n    private progressCallback_: ((p1: number, p2: number) => void) | null,\n    private connectionFactory_: () => Connection<I>,\n    private retry = true,\n    private isUsingEmulator = false\n  ) {\n    this.promise_ = new Promise((resolve, reject) => {\n      this.resolve_ = resolve as (value?: O | PromiseLike<O>) => void;\n      this.reject_ = reject;\n      this.start_();\n    });\n  }\n\n  /**\n   * Actually starts the retry loop.\n   */\n  private start_(): void {\n    const doTheRequest: (\n      backoffCallback: (success: boolean, ...p2: unknown[]) => void,\n      canceled: boolean\n    ) => void = (backoffCallback, canceled) => {\n      if (canceled) {\n        backoffCallback(false, new RequestEndStatus(false, null, true));\n        return;\n      }\n      const connection = this.connectionFactory_();\n      this.pendingConnection_ = connection;\n\n      const progressListener: (\n        progressEvent: ProgressEvent\n      ) => void = progressEvent => {\n        const loaded = progressEvent.loaded;\n        const total = progressEvent.lengthComputable ? progressEvent.total : -1;\n        if (this.progressCallback_ !== null) {\n          this.progressCallback_(loaded, total);\n        }\n      };\n      if (this.progressCallback_ !== null) {\n        connection.addUploadProgressListener(progressListener);\n      }\n\n      // connection.send() never rejects, so we don't need to have a error handler or use catch on the returned promise.\n      // eslint-disable-next-line @typescript-eslint/no-floating-promises\n      connection\n        .send(\n          this.url_,\n          this.method_,\n          this.isUsingEmulator,\n          this.body_,\n          this.headers_\n        )\n        .then(() => {\n          if (this.progressCallback_ !== null) {\n            connection.removeUploadProgressListener(progressListener);\n          }\n          this.pendingConnection_ = null;\n          const hitServer = connection.getErrorCode() === ErrorCode.NO_ERROR;\n          const status = connection.getStatus();\n          if (\n            !hitServer ||\n            (isRetryStatusCode(status, this.additionalRetryCodes_) &&\n              this.retry)\n          ) {\n            const wasCanceled = connection.getErrorCode() === ErrorCode.ABORT;\n            backoffCallback(\n              false,\n              new RequestEndStatus(false, null, wasCanceled)\n            );\n            return;\n          }\n          const successCode = this.successCodes_.indexOf(status) !== -1;\n          backoffCallback(true, new RequestEndStatus(successCode, connection));\n        });\n    };\n\n    /**\n     * @param requestWentThrough - True if the request eventually went\n     *     through, false if it hit the retry limit or was canceled.\n     */\n    const backoffDone: (\n      requestWentThrough: boolean,\n      status: RequestEndStatus<I>\n    ) => void = (requestWentThrough, status) => {\n      const resolve = this.resolve_;\n      const reject = this.reject_;\n      const connection = status.connection as Connection<I>;\n      if (status.wasSuccessCode) {\n        try {\n          const result = this.callback_(connection, connection.getResponse());\n          if (isJustDef(result)) {\n            resolve(result);\n          } else {\n            resolve();\n          }\n        } catch (e) {\n          reject(e);\n        }\n      } else {\n        if (connection !== null) {\n          const err = unknown();\n          err.serverResponse = connection.getErrorText();\n          if (this.errorCallback_) {\n            reject(this.errorCallback_(connection, err));\n          } else {\n            reject(err);\n          }\n        } else {\n          if (status.canceled) {\n            const err = this.appDelete_ ? appDeleted() : canceled();\n            reject(err);\n          } else {\n            const err = retryLimitExceeded();\n            reject(err);\n          }\n        }\n      }\n    };\n    if (this.canceled_) {\n      backoffDone(false, new RequestEndStatus(false, null, true));\n    } else {\n      this.backoffId_ = start(doTheRequest, backoffDone, this.timeout_);\n    }\n  }\n\n  /** @inheritDoc */\n  getPromise(): Promise<O> {\n    return this.promise_;\n  }\n\n  /** @inheritDoc */\n  cancel(appDelete?: boolean): void {\n    this.canceled_ = true;\n    this.appDelete_ = appDelete || false;\n    if (this.backoffId_ !== null) {\n      stop(this.backoffId_);\n    }\n    if (this.pendingConnection_ !== null) {\n      this.pendingConnection_.abort();\n    }\n  }\n}\n\n/**\n * A collection of information about the result of a network request.\n * @param opt_canceled - Defaults to false.\n */\nexport class RequestEndStatus<I extends ConnectionType> {\n  /**\n   * True if the request was canceled.\n   */\n  canceled: boolean;\n\n  constructor(\n    public wasSuccessCode: boolean,\n    public connection: Connection<I> | null,\n    canceled?: boolean\n  ) {\n    this.canceled = !!canceled;\n  }\n}\n\nexport function addAuthHeader_(\n  headers: Headers,\n  authToken: string | null\n): void {\n  if (authToken !== null && authToken.length > 0) {\n    headers['Authorization'] = 'Firebase ' + authToken;\n  }\n}\n\nexport function addVersionHeader_(\n  headers: Headers,\n  firebaseVersion?: string\n): void {\n  headers['X-Firebase-Storage-Version'] =\n    'webjs/' + (firebaseVersion ?? 'AppManager');\n}\n\nexport function addGmpidHeader_(headers: Headers, appId: string | null): void {\n  if (appId) {\n    headers['X-Firebase-GMPID'] = appId;\n  }\n}\n\nexport function addAppCheckHeader_(\n  headers: Headers,\n  appCheckToken: string | null\n): void {\n  if (appCheckToken !== null) {\n    headers['X-Firebase-AppCheck'] = appCheckToken;\n  }\n}\n\nexport function makeRequest<I extends ConnectionType, O>(\n  requestInfo: RequestInfo<I, O>,\n  appId: string | null,\n  authToken: string | null,\n  appCheckToken: string | null,\n  requestFactory: () => Connection<I>,\n  firebaseVersion?: string,\n  retry = true,\n  isUsingEmulator = false\n): Request<O> {\n  const queryPart = makeQueryString(requestInfo.urlParams);\n  const url = requestInfo.url + queryPart;\n  const headers = Object.assign({}, requestInfo.headers);\n  addGmpidHeader_(headers, appId);\n  addAuthHeader_(headers, authToken);\n  addVersionHeader_(headers, firebaseVersion);\n  addAppCheckHeader_(headers, appCheckToken);\n  return new NetworkRequest<I, O>(\n    url,\n    requestInfo.method,\n    headers,\n    requestInfo.body,\n    requestInfo.successCodes,\n    requestInfo.additionalRetryCodes,\n    requestInfo.handler,\n    requestInfo.errorHandler,\n    requestInfo.timeout,\n    requestInfo.progressCallback,\n    requestFactory,\n    retry,\n    isUsingEmulator\n  );\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * @fileoverview Some methods copied from goog.fs.\n * We don't include goog.fs because it pulls in a bunch of Deferred code that\n * bloats the size of the released binary.\n */\nimport { isNativeBlobDefined } from './type';\nimport { StorageErrorCode, StorageError } from './error';\n\nfunction getBlobBuilder(): typeof IBlobBuilder | undefined {\n  if (typeof BlobBuilder !== 'undefined') {\n    return BlobBuilder;\n  } else if (typeof WebKitBlobBuilder !== 'undefined') {\n    return WebKitBlobBuilder;\n  } else {\n    return undefined;\n  }\n}\n\n/**\n * Concatenates one or more values together and converts them to a Blob.\n *\n * @param args The values that will make up the resulting blob.\n * @return The blob.\n */\nexport function getBlob(...args: Array<string | Blob | ArrayBuffer>): Blob {\n  const BlobBuilder = getBlobBuilder();\n  if (BlobBuilder !== undefined) {\n    const bb = new BlobBuilder();\n    for (let i = 0; i < args.length; i++) {\n      bb.append(args[i]);\n    }\n    return bb.getBlob();\n  } else {\n    if (isNativeBlobDefined()) {\n      return new Blob(args);\n    } else {\n      throw new StorageError(\n        StorageErrorCode.UNSUPPORTED_ENVIRONMENT,\n        \"This browser doesn't seem to support creating Blobs\"\n      );\n    }\n  }\n}\n\n/**\n * Slices the blob. The returned blob contains data from the start byte\n * (inclusive) till the end byte (exclusive). Negative indices cannot be used.\n *\n * @param blob The blob to be sliced.\n * @param start Index of the starting byte.\n * @param end Index of the ending byte.\n * @return The blob slice or null if not supported.\n */\nexport function sliceBlob(blob: Blob, start: number, end: number): Blob | null {\n  if (blob.webkitSlice) {\n    return blob.webkitSlice(start, end);\n  } else if (blob.mozSlice) {\n    return blob.mozSlice(start, end);\n  } else if (blob.slice) {\n    return blob.slice(start, end);\n  }\n  return null;\n}\n","/**\n * @license\n * Copyright 2021 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { missingPolyFill } from '../../implementation/error';\n\n/** Converts a Base64 encoded string to a binary string. */\nexport function decodeBase64(encoded: string): string {\n  if (typeof atob === 'undefined') {\n    throw missingPolyFill('base-64');\n  }\n  return atob(encoded);\n}\n\nexport function decodeUint8Array(data: Uint8Array): string {\n  return new TextDecoder().decode(data);\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { unknown, invalidFormat } from './error';\nimport { decodeBase64 } from '../platform/base64';\n\n/**\n * An enumeration of the possible string formats for upload.\n * @public\n */\nexport type StringFormat = (typeof StringFormat)[keyof typeof StringFormat];\n/**\n * An enumeration of the possible string formats for upload.\n * @public\n */\nexport const StringFormat = {\n  /**\n   * Indicates the string should be interpreted \"raw\", that is, as normal text.\n   * The string will be interpreted as UTF-16, then uploaded as a UTF-8 byte\n   * sequence.\n   * Example: The string 'Hello! \\\\ud83d\\\\ude0a' becomes the byte sequence\n   * 48 65 6c 6c 6f 21 20 f0 9f 98 8a\n   */\n  RAW: 'raw',\n  /**\n   * Indicates the string should be interpreted as base64-encoded data.\n   * Padding characters (trailing '='s) are optional.\n   * Example: The string 'rWmO++E6t7/rlw==' becomes the byte sequence\n   * ad 69 8e fb e1 3a b7 bf eb 97\n   */\n  BASE64: 'base64',\n  /**\n   * Indicates the string should be interpreted as base64url-encoded data.\n   * Padding characters (trailing '='s) are optional.\n   * Example: The string 'rWmO--E6t7_rlw==' becomes the byte sequence\n   * ad 69 8e fb e1 3a b7 bf eb 97\n   */\n  BASE64URL: 'base64url',\n  /**\n   * Indicates the string is a data URL, such as one obtained from\n   * canvas.toDataURL().\n   * Example: the string 'data:application/octet-stream;base64,aaaa'\n   * becomes the byte sequence\n   * 69 a6 9a\n   * (the content-type \"application/octet-stream\" is also applied, but can\n   * be overridden in the metadata object).\n   */\n  DATA_URL: 'data_url'\n} as const;\n\nexport class StringData {\n  contentType: string | null;\n\n  constructor(public data: Uint8Array, contentType?: string | null) {\n    this.contentType = contentType || null;\n  }\n}\n\n/**\n * @internal\n */\nexport function dataFromString(\n  format: StringFormat,\n  stringData: string\n): StringData {\n  switch (format) {\n    case StringFormat.RAW:\n      return new StringData(utf8Bytes_(stringData));\n    case StringFormat.BASE64:\n    case StringFormat.BASE64URL:\n      return new StringData(base64Bytes_(format, stringData));\n    case StringFormat.DATA_URL:\n      return new StringData(\n        dataURLBytes_(stringData),\n        dataURLContentType_(stringData)\n      );\n    default:\n    // do nothing\n  }\n\n  // assert(false);\n  throw unknown();\n}\n\nexport function utf8Bytes_(value: string): Uint8Array {\n  const b: number[] = [];\n  for (let i = 0; i < value.length; i++) {\n    let c = value.charCodeAt(i);\n    if (c <= 127) {\n      b.push(c);\n    } else {\n      if (c <= 2047) {\n        b.push(192 | (c >> 6), 128 | (c & 63));\n      } else {\n        if ((c & 64512) === 55296) {\n          // The start of a surrogate pair.\n          const valid =\n            i < value.length - 1 && (value.charCodeAt(i + 1) & 64512) === 56320;\n          if (!valid) {\n            // The second surrogate wasn't there.\n            b.push(239, 191, 189);\n          } else {\n            const hi = c;\n            const lo = value.charCodeAt(++i);\n            c = 65536 | ((hi & 1023) << 10) | (lo & 1023);\n            b.push(\n              240 | (c >> 18),\n              128 | ((c >> 12) & 63),\n              128 | ((c >> 6) & 63),\n              128 | (c & 63)\n            );\n          }\n        } else {\n          if ((c & 64512) === 56320) {\n            // Invalid low surrogate.\n            b.push(239, 191, 189);\n          } else {\n            b.push(224 | (c >> 12), 128 | ((c >> 6) & 63), 128 | (c & 63));\n          }\n        }\n      }\n    }\n  }\n  return new Uint8Array(b);\n}\n\nexport function percentEncodedBytes_(value: string): Uint8Array {\n  let decoded;\n  try {\n    decoded = decodeURIComponent(value);\n  } catch (e) {\n    throw invalidFormat(StringFormat.DATA_URL, 'Malformed data URL.');\n  }\n  return utf8Bytes_(decoded);\n}\n\nexport function base64Bytes_(format: StringFormat, value: string): Uint8Array {\n  switch (format) {\n    case StringFormat.BASE64: {\n      const hasMinus = value.indexOf('-') !== -1;\n      const hasUnder = value.indexOf('_') !== -1;\n      if (hasMinus || hasUnder) {\n        const invalidChar = hasMinus ? '-' : '_';\n        throw invalidFormat(\n          format,\n          \"Invalid character '\" +\n            invalidChar +\n            \"' found: is it base64url encoded?\"\n        );\n      }\n      break;\n    }\n    case StringFormat.BASE64URL: {\n      const hasPlus = value.indexOf('+') !== -1;\n      const hasSlash = value.indexOf('/') !== -1;\n      if (hasPlus || hasSlash) {\n        const invalidChar = hasPlus ? '+' : '/';\n        throw invalidFormat(\n          format,\n          \"Invalid character '\" + invalidChar + \"' found: is it base64 encoded?\"\n        );\n      }\n      value = value.replace(/-/g, '+').replace(/_/g, '/');\n      break;\n    }\n    default:\n    // do nothing\n  }\n  let bytes;\n  try {\n    bytes = decodeBase64(value);\n  } catch (e) {\n    if ((e as Error).message.includes('polyfill')) {\n      throw e;\n    }\n    throw invalidFormat(format, 'Invalid character found');\n  }\n  const array = new Uint8Array(bytes.length);\n  for (let i = 0; i < bytes.length; i++) {\n    array[i] = bytes.charCodeAt(i);\n  }\n  return array;\n}\n\nclass DataURLParts {\n  base64: boolean = false;\n  contentType: string | null = null;\n  rest: string;\n\n  constructor(dataURL: string) {\n    const matches = dataURL.match(/^data:([^,]+)?,/);\n    if (matches === null) {\n      throw invalidFormat(\n        StringFormat.DATA_URL,\n        \"Must be formatted 'data:[<mediatype>][;base64],<data>\"\n      );\n    }\n    const middle = matches[1] || null;\n    if (middle != null) {\n      this.base64 = endsWith(middle, ';base64');\n      this.contentType = this.base64\n        ? middle.substring(0, middle.length - ';base64'.length)\n        : middle;\n    }\n    this.rest = dataURL.substring(dataURL.indexOf(',') + 1);\n  }\n}\n\nexport function dataURLBytes_(dataUrl: string): Uint8Array {\n  const parts = new DataURLParts(dataUrl);\n  if (parts.base64) {\n    return base64Bytes_(StringFormat.BASE64, parts.rest);\n  } else {\n    return percentEncodedBytes_(parts.rest);\n  }\n}\n\nexport function dataURLContentType_(dataUrl: string): string | null {\n  const parts = new DataURLParts(dataUrl);\n  return parts.contentType;\n}\n\nfunction endsWith(s: string, end: string): boolean {\n  const longEnough = s.length >= end.length;\n  if (!longEnough) {\n    return false;\n  }\n\n  return s.substring(s.length - end.length) === end;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @file Provides a Blob-like wrapper for various binary types (including the\n * native Blob type). This makes it possible to upload types like ArrayBuffers,\n * making uploads possible in environments without the native Blob type.\n */\nimport { sliceBlob, getBlob } from './fs';\nimport { StringFormat, dataFromString } from './string';\nimport { isNativeBlob, isNativeBlobDefined, isString } from './type';\n\n/**\n * @param opt_elideCopy - If true, doesn't copy mutable input data\n *     (e.g. Uint8Arrays). Pass true only if you know the objects will not be\n *     modified after this blob's construction.\n *\n * @internal\n */\nexport class FbsBlob {\n  private data_!: Blob | Uint8Array;\n  private size_: number;\n  private type_: string;\n\n  constructor(data: Blob | Uint8Array | ArrayBuffer, elideCopy?: boolean) {\n    let size: number = 0;\n    let blobType: string = '';\n    if (isNativeBlob(data)) {\n      this.data_ = data as Blob;\n      size = (data as Blob).size;\n      blobType = (data as Blob).type;\n    } else if (data instanceof ArrayBuffer) {\n      if (elideCopy) {\n        this.data_ = new Uint8Array(data);\n      } else {\n        this.data_ = new Uint8Array(data.byteLength);\n        this.data_.set(new Uint8Array(data));\n      }\n      size = this.data_.length;\n    } else if (data instanceof Uint8Array) {\n      if (elideCopy) {\n        this.data_ = data as Uint8Array;\n      } else {\n        this.data_ = new Uint8Array(data.length);\n        this.data_.set(data as Uint8Array);\n      }\n      size = data.length;\n    }\n    this.size_ = size;\n    this.type_ = blobType;\n  }\n\n  size(): number {\n    return this.size_;\n  }\n\n  type(): string {\n    return this.type_;\n  }\n\n  slice(startByte: number, endByte: number): FbsBlob | null {\n    if (isNativeBlob(this.data_)) {\n      const realBlob = this.data_ as Blob;\n      const sliced = sliceBlob(realBlob, startByte, endByte);\n      if (sliced === null) {\n        return null;\n      }\n      return new FbsBlob(sliced);\n    } else {\n      const slice = new Uint8Array(\n        (this.data_ as Uint8Array).buffer,\n        startByte,\n        endByte - startByte\n      );\n      return new FbsBlob(slice, true);\n    }\n  }\n\n  static getBlob(...args: Array<string | FbsBlob>): FbsBlob | null {\n    if (isNativeBlobDefined()) {\n      const blobby: Array<Blob | Uint8Array | string> = args.map(\n        (val: string | FbsBlob): Blob | Uint8Array | string => {\n          if (val instanceof FbsBlob) {\n            return val.data_;\n          } else {\n            return val;\n          }\n        }\n      );\n      return new FbsBlob(getBlob.apply(null, blobby));\n    } else {\n      const uint8Arrays: Uint8Array[] = args.map(\n        (val: string | FbsBlob): Uint8Array => {\n          if (isString(val)) {\n            return dataFromString(StringFormat.RAW, val as string).data;\n          } else {\n            // Blobs don't exist, so this has to be a Uint8Array.\n            return (val as FbsBlob).data_ as Uint8Array;\n          }\n        }\n      );\n      let finalLength = 0;\n      uint8Arrays.forEach((array: Uint8Array): void => {\n        finalLength += array.byteLength;\n      });\n      const merged = new Uint8Array(finalLength);\n      let index = 0;\n      uint8Arrays.forEach((array: Uint8Array) => {\n        for (let i = 0; i < array.length; i++) {\n          merged[index++] = array[i];\n        }\n      });\n      return new FbsBlob(merged, true);\n    }\n  }\n\n  uploadData(): Blob | Uint8Array {\n    return this.data_;\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport { isNonArrayObject } from './type';\n\n/**\n * Returns the Object resulting from parsing the given JSON, or null if the\n * given string does not represent a JSON object.\n */\nexport function jsonObjectOrNull(\n  s: string\n): { [name: string]: unknown } | null {\n  let obj;\n  try {\n    obj = JSON.parse(s);\n  } catch (e) {\n    return null;\n  }\n  if (isNonArrayObject(obj)) {\n    return obj;\n  } else {\n    return null;\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Contains helper methods for manipulating paths.\n */\n\n/**\n * @return Null if the path is already at the root.\n */\nexport function parent(path: string): string | null {\n  if (path.length === 0) {\n    return null;\n  }\n  const index = path.lastIndexOf('/');\n  if (index === -1) {\n    return '';\n  }\n  const newPath = path.slice(0, index);\n  return newPath;\n}\n\nexport function child(path: string, childPath: string): string {\n  const canonicalChildPath = childPath\n    .split('/')\n    .filter(component => component.length > 0)\n    .join('/');\n  if (path.length === 0) {\n    return canonicalChildPath;\n  } else {\n    return path + '/' + canonicalChildPath;\n  }\n}\n\n/**\n * Returns the last component of a path.\n * '/foo/bar' -> 'bar'\n * '/foo/bar/baz/' -> 'baz/'\n * '/a' -> 'a'\n */\nexport function lastComponent(path: string): string {\n  const index = path.lastIndexOf('/', path.length - 2);\n  if (index === -1) {\n    return path;\n  } else {\n    return path.slice(index + 1);\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Documentation for the metadata format\n */\nimport { Metadata } from '../metadata';\n\nimport { jsonObjectOrNull } from './json';\nimport { Location } from './location';\nimport { lastComponent } from './path';\nimport { isString } from './type';\nimport { makeUrl, makeQueryString } from './url';\nimport { Reference } from '../reference';\nimport { FirebaseStorageImpl } from '../service';\n\nexport function noXform_<T>(metadata: Metadata, value: T): T {\n  return value;\n}\n\nclass Mapping<T> {\n  local: string;\n  writable: boolean;\n  xform: (p1: Metadata, p2?: T) => T | undefined;\n\n  constructor(\n    public server: string,\n    local?: string | null,\n    writable?: boolean,\n    xform?: ((p1: Metadata, p2?: T) => T | undefined) | null\n  ) {\n    this.local = local || server;\n    this.writable = !!writable;\n    this.xform = xform || noXform_;\n  }\n}\ntype Mappings = Array<Mapping<string> | Mapping<number>>;\n\nexport { Mappings };\n\nlet mappings_: Mappings | null = null;\n\nexport function xformPath(fullPath: string | undefined): string | undefined {\n  if (!isString(fullPath) || fullPath.length < 2) {\n    return fullPath;\n  } else {\n    return lastComponent(fullPath);\n  }\n}\n\nexport function getMappings(): Mappings {\n  if (mappings_) {\n    return mappings_;\n  }\n  const mappings: Mappings = [];\n  mappings.push(new Mapping<string>('bucket'));\n  mappings.push(new Mapping<string>('generation'));\n  mappings.push(new Mapping<string>('metageneration'));\n  mappings.push(new Mapping<string>('name', 'fullPath', true));\n\n  function mappingsXformPath(\n    _metadata: Metadata,\n    fullPath: string | undefined\n  ): string | undefined {\n    return xformPath(fullPath);\n  }\n  const nameMapping = new Mapping<string>('name');\n  nameMapping.xform = mappingsXformPath;\n  mappings.push(nameMapping);\n\n  /**\n   * Coerces the second param to a number, if it is defined.\n   */\n  function xformSize(\n    _metadata: Metadata,\n    size?: number | string\n  ): number | undefined {\n    if (size !== undefined) {\n      return Number(size);\n    } else {\n      return size;\n    }\n  }\n  const sizeMapping = new Mapping<number>('size');\n  sizeMapping.xform = xformSize;\n  mappings.push(sizeMapping);\n  mappings.push(new Mapping<number>('timeCreated'));\n  mappings.push(new Mapping<string>('updated'));\n  mappings.push(new Mapping<string>('md5Hash', null, true));\n  mappings.push(new Mapping<string>('cacheControl', null, true));\n  mappings.push(new Mapping<string>('contentDisposition', null, true));\n  mappings.push(new Mapping<string>('contentEncoding', null, true));\n  mappings.push(new Mapping<string>('contentLanguage', null, true));\n  mappings.push(new Mapping<string>('contentType', null, true));\n  mappings.push(new Mapping<string>('metadata', 'customMetadata', true));\n  mappings_ = mappings;\n  return mappings_;\n}\n\nexport function addRef(metadata: Metadata, service: FirebaseStorageImpl): void {\n  function generateRef(): Reference {\n    const bucket: string = metadata['bucket'] as string;\n    const path: string = metadata['fullPath'] as string;\n    const loc = new Location(bucket, path);\n    return service._makeStorageReference(loc);\n  }\n  Object.defineProperty(metadata, 'ref', { get: generateRef });\n}\n\nexport function fromResource(\n  service: FirebaseStorageImpl,\n  resource: { [name: string]: unknown },\n  mappings: Mappings\n): Metadata {\n  const metadata: Metadata = {} as Metadata;\n  metadata['type'] = 'file';\n  const len = mappings.length;\n  for (let i = 0; i < len; i++) {\n    const mapping = mappings[i];\n    metadata[mapping.local] = (mapping as Mapping<unknown>).xform(\n      metadata,\n      resource[mapping.server]\n    );\n  }\n  addRef(metadata, service);\n  return metadata;\n}\n\nexport function fromResourceString(\n  service: FirebaseStorageImpl,\n  resourceString: string,\n  mappings: Mappings\n): Metadata | null {\n  const obj = jsonObjectOrNull(resourceString);\n  if (obj === null) {\n    return null;\n  }\n  const resource = obj as Metadata;\n  return fromResource(service, resource, mappings);\n}\n\nexport function downloadUrlFromResourceString(\n  metadata: Metadata,\n  resourceString: string,\n  host: string,\n  protocol: string\n): string | null {\n  const obj = jsonObjectOrNull(resourceString);\n  if (obj === null) {\n    return null;\n  }\n  if (!isString(obj['downloadTokens'])) {\n    // This can happen if objects are uploaded through GCS and retrieved\n    // through list, so we don't want to throw an Error.\n    return null;\n  }\n  const tokens: string = obj['downloadTokens'] as string;\n  if (tokens.length === 0) {\n    return null;\n  }\n  const encode = encodeURIComponent;\n  const tokensList = tokens.split(',');\n  const urls = tokensList.map((token: string): string => {\n    const bucket: string = metadata['bucket'] as string;\n    const path: string = metadata['fullPath'] as string;\n    const urlPart = '/b/' + encode(bucket) + '/o/' + encode(path);\n    const base = makeUrl(urlPart, host, protocol);\n    const queryString = makeQueryString({\n      alt: 'media',\n      token\n    });\n    return base + queryString;\n  });\n  return urls[0];\n}\n\nexport function toResourceString(\n  metadata: Partial<Metadata>,\n  mappings: Mappings\n): string {\n  const resource: {\n    [prop: string]: unknown;\n  } = {};\n  const len = mappings.length;\n  for (let i = 0; i < len; i++) {\n    const mapping = mappings[i];\n    if (mapping.writable) {\n      resource[mapping.server] = metadata[mapping.local];\n    }\n  }\n  return JSON.stringify(resource);\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Documentation for the listOptions and listResult format\n */\nimport { Location } from './location';\nimport { jsonObjectOrNull } from './json';\nimport { ListResult } from '../list';\nimport { FirebaseStorageImpl } from '../service';\n\n/**\n * Represents the simplified object metadata returned by List API.\n * Other fields are filtered because list in Firebase Rules does not grant\n * the permission to read the metadata.\n */\ninterface ListMetadataResponse {\n  name: string;\n  bucket: string;\n}\n\n/**\n * Represents the JSON response of List API.\n */\ninterface ListResultResponse {\n  prefixes: string[];\n  items: ListMetadataResponse[];\n  nextPageToken?: string;\n}\n\nconst PREFIXES_KEY = 'prefixes';\nconst ITEMS_KEY = 'items';\n\nfunction fromBackendResponse(\n  service: FirebaseStorageImpl,\n  bucket: string,\n  resource: ListResultResponse\n): ListResult {\n  const listResult: ListResult = {\n    prefixes: [],\n    items: [],\n    nextPageToken: resource['nextPageToken']\n  };\n  if (resource[PREFIXES_KEY]) {\n    for (const path of resource[PREFIXES_KEY]) {\n      const pathWithoutTrailingSlash = path.replace(/\\/$/, '');\n      const reference = service._makeStorageReference(\n        new Location(bucket, pathWithoutTrailingSlash)\n      );\n      listResult.prefixes.push(reference);\n    }\n  }\n\n  if (resource[ITEMS_KEY]) {\n    for (const item of resource[ITEMS_KEY]) {\n      const reference = service._makeStorageReference(\n        new Location(bucket, item['name'])\n      );\n      listResult.items.push(reference);\n    }\n  }\n  return listResult;\n}\n\nexport function fromResponseString(\n  service: FirebaseStorageImpl,\n  bucket: string,\n  resourceString: string\n): ListResult | null {\n  const obj = jsonObjectOrNull(resourceString);\n  if (obj === null) {\n    return null;\n  }\n  const resource = obj as unknown as ListResultResponse;\n  return fromBackendResponse(service, bucket, resource);\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport { StorageError } from './error';\nimport { Headers, Connection, ConnectionType } from './connection';\n\n/**\n * Type for url params stored in RequestInfo.\n */\nexport interface UrlParams {\n  [name: string]: string | number;\n}\n\n/**\n * A function that converts a server response to the API type expected by the\n * SDK.\n *\n * @param I - the type of the backend's network response\n * @param O - the output response type used by the rest of the SDK.\n */\nexport type RequestHandler<I extends ConnectionType, O> = (\n  connection: Connection<I>,\n  response: I\n) => O;\n\n/** A function to handle an error. */\nexport type ErrorHandler = (\n  connection: Connection<ConnectionType>,\n  response: StorageError\n) => StorageError;\n\n/**\n * Contains a fully specified request.\n *\n * @param I - the type of the backend's network response.\n * @param O - the output response type used by the rest of the SDK.\n */\nexport class RequestInfo<I extends ConnectionType, O> {\n  urlParams: UrlParams = {};\n  headers: Headers = {};\n  body: Blob | string | Uint8Array | null = null;\n  errorHandler: ErrorHandler | null = null;\n\n  /**\n   * Called with the current number of bytes uploaded and total size (-1 if not\n   * computable) of the request body (i.e. used to report upload progress).\n   */\n  progressCallback: ((p1: number, p2: number) => void) | null = null;\n  successCodes: number[] = [200];\n  additionalRetryCodes: number[] = [];\n\n  constructor(\n    public url: string,\n    public method: string,\n    /**\n     * Returns the value with which to resolve the request's promise. Only called\n     * if the request is successful. Throw from this function to reject the\n     * returned Request's promise with the thrown error.\n     * Note: The XhrIo passed to this function may be reused after this callback\n     * returns. Do not keep a reference to it in any way.\n     */\n    public handler: RequestHandler<I, O>,\n    public timeout: number\n  ) {}\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Defines methods for interacting with the network.\n */\n\nimport { Metadata } from '../metadata';\nimport { ListResult } from '../list';\nimport { FbsBlob } from './blob';\nimport {\n  StorageError,\n  cannotSliceBlob,\n  unauthenticated,\n  quotaExceeded,\n  unauthorized,\n  objectNotFound,\n  serverFileWrongSize,\n  unknown,\n  unauthorizedApp\n} from './error';\nimport { Location } from './location';\nimport {\n  Mappings,\n  fromResourceString,\n  downloadUrlFromResourceString,\n  toResourceString\n} from './metadata';\nimport { fromResponseString } from './list';\nimport { RequestInfo, UrlParams } from './requestinfo';\nimport { isString } from './type';\nimport { makeUrl } from './url';\nimport { Connection, ConnectionType } from './connection';\nimport { FirebaseStorageImpl } from '../service';\n\n/**\n * Throws the UNKNOWN StorageError if cndn is false.\n */\nexport function handlerCheck(cndn: boolean): void {\n  if (!cndn) {\n    throw unknown();\n  }\n}\n\nexport function metadataHandler(\n  service: FirebaseStorageImpl,\n  mappings: Mappings\n): (p1: Connection<string>, p2: string) => Metadata {\n  function handler(xhr: Connection<string>, text: string): Metadata {\n    const metadata = fromResourceString(service, text, mappings);\n    handlerCheck(metadata !== null);\n    return metadata as Metadata;\n  }\n  return handler;\n}\n\nexport function listHandler(\n  service: FirebaseStorageImpl,\n  bucket: string\n): (p1: Connection<string>, p2: string) => ListResult {\n  function handler(xhr: Connection<string>, text: string): ListResult {\n    const listResult = fromResponseString(service, bucket, text);\n    handlerCheck(listResult !== null);\n    return listResult as ListResult;\n  }\n  return handler;\n}\n\nexport function downloadUrlHandler(\n  service: FirebaseStorageImpl,\n  mappings: Mappings\n): (p1: Connection<string>, p2: string) => string | null {\n  function handler(xhr: Connection<string>, text: string): string | null {\n    const metadata = fromResourceString(service, text, mappings);\n    handlerCheck(metadata !== null);\n    return downloadUrlFromResourceString(\n      metadata as Metadata,\n      text,\n      service.host,\n      service._protocol\n    );\n  }\n  return handler;\n}\n\nexport function sharedErrorHandler(\n  location: Location\n): (p1: Connection<ConnectionType>, p2: StorageError) => StorageError {\n  function errorHandler(\n    xhr: Connection<ConnectionType>,\n    err: StorageError\n  ): StorageError {\n    let newErr: StorageError;\n    if (xhr.getStatus() === 401) {\n      if (\n        // This exact message string is the only consistent part of the\n        // server's error response that identifies it as an App Check error.\n        xhr.getErrorText().includes('Firebase App Check token is invalid')\n      ) {\n        newErr = unauthorizedApp();\n      } else {\n        newErr = unauthenticated();\n      }\n    } else {\n      if (xhr.getStatus() === 402) {\n        newErr = quotaExceeded(location.bucket);\n      } else {\n        if (xhr.getStatus() === 403) {\n          newErr = unauthorized(location.path);\n        } else {\n          newErr = err;\n        }\n      }\n    }\n    newErr.status = xhr.getStatus();\n    newErr.serverResponse = err.serverResponse;\n    return newErr;\n  }\n  return errorHandler;\n}\n\nexport function objectErrorHandler(\n  location: Location\n): (p1: Connection<ConnectionType>, p2: StorageError) => StorageError {\n  const shared = sharedErrorHandler(location);\n\n  function errorHandler(\n    xhr: Connection<ConnectionType>,\n    err: StorageError\n  ): StorageError {\n    let newErr = shared(xhr, err);\n    if (xhr.getStatus() === 404) {\n      newErr = objectNotFound(location.path);\n    }\n    newErr.serverResponse = err.serverResponse;\n    return newErr;\n  }\n  return errorHandler;\n}\n\nexport function getMetadata(\n  service: FirebaseStorageImpl,\n  location: Location,\n  mappings: Mappings\n): RequestInfo<string, Metadata> {\n  const urlPart = location.fullServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'GET';\n  const timeout = service.maxOperationRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    metadataHandler(service, mappings),\n    timeout\n  );\n  requestInfo.errorHandler = objectErrorHandler(location);\n  return requestInfo;\n}\n\nexport function list(\n  service: FirebaseStorageImpl,\n  location: Location,\n  delimiter?: string,\n  pageToken?: string | null,\n  maxResults?: number | null\n): RequestInfo<string, ListResult> {\n  const urlParams: UrlParams = {};\n  if (location.isRoot) {\n    urlParams['prefix'] = '';\n  } else {\n    urlParams['prefix'] = location.path + '/';\n  }\n  if (delimiter && delimiter.length > 0) {\n    urlParams['delimiter'] = delimiter;\n  }\n  if (pageToken) {\n    urlParams['pageToken'] = pageToken;\n  }\n  if (maxResults) {\n    urlParams['maxResults'] = maxResults;\n  }\n  const urlPart = location.bucketOnlyServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'GET';\n  const timeout = service.maxOperationRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    listHandler(service, location.bucket),\n    timeout\n  );\n  requestInfo.urlParams = urlParams;\n  requestInfo.errorHandler = sharedErrorHandler(location);\n  return requestInfo;\n}\n\nexport function getBytes<I extends ConnectionType>(\n  service: FirebaseStorageImpl,\n  location: Location,\n  maxDownloadSizeBytes?: number\n): RequestInfo<I, I> {\n  const urlPart = location.fullServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol) + '?alt=media';\n  const method = 'GET';\n  const timeout = service.maxOperationRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    (_: Connection<I>, data: I) => data,\n    timeout\n  );\n  requestInfo.errorHandler = objectErrorHandler(location);\n  if (maxDownloadSizeBytes !== undefined) {\n    requestInfo.headers['Range'] = `bytes=0-${maxDownloadSizeBytes}`;\n    requestInfo.successCodes = [200 /* OK */, 206 /* Partial Content */];\n  }\n  return requestInfo;\n}\n\nexport function getDownloadUrl(\n  service: FirebaseStorageImpl,\n  location: Location,\n  mappings: Mappings\n): RequestInfo<string, string | null> {\n  const urlPart = location.fullServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'GET';\n  const timeout = service.maxOperationRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    downloadUrlHandler(service, mappings),\n    timeout\n  );\n  requestInfo.errorHandler = objectErrorHandler(location);\n  return requestInfo;\n}\n\nexport function updateMetadata(\n  service: FirebaseStorageImpl,\n  location: Location,\n  metadata: Partial<Metadata>,\n  mappings: Mappings\n): RequestInfo<string, Metadata> {\n  const urlPart = location.fullServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'PATCH';\n  const body = toResourceString(metadata, mappings);\n  const headers = { 'Content-Type': 'application/json; charset=utf-8' };\n  const timeout = service.maxOperationRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    metadataHandler(service, mappings),\n    timeout\n  );\n  requestInfo.headers = headers;\n  requestInfo.body = body;\n  requestInfo.errorHandler = objectErrorHandler(location);\n  return requestInfo;\n}\n\nexport function deleteObject(\n  service: FirebaseStorageImpl,\n  location: Location\n): RequestInfo<string, void> {\n  const urlPart = location.fullServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'DELETE';\n  const timeout = service.maxOperationRetryTime;\n\n  function handler(_xhr: Connection<string>, _text: string): void {}\n  const requestInfo = new RequestInfo(url, method, handler, timeout);\n  requestInfo.successCodes = [200, 204];\n  requestInfo.errorHandler = objectErrorHandler(location);\n  return requestInfo;\n}\n\nexport function determineContentType_(\n  metadata: Metadata | null,\n  blob: FbsBlob | null\n): string {\n  return (\n    (metadata && metadata['contentType']) ||\n    (blob && blob.type()) ||\n    'application/octet-stream'\n  );\n}\n\nexport function metadataForUpload_(\n  location: Location,\n  blob: FbsBlob,\n  metadata?: Metadata | null\n): Metadata {\n  const metadataClone = Object.assign({}, metadata);\n  metadataClone['fullPath'] = location.path;\n  metadataClone['size'] = blob.size();\n  if (!metadataClone['contentType']) {\n    metadataClone['contentType'] = determineContentType_(null, blob);\n  }\n  return metadataClone;\n}\n\n/**\n * Prepare RequestInfo for uploads as Content-Type: multipart.\n */\nexport function multipartUpload(\n  service: FirebaseStorageImpl,\n  location: Location,\n  mappings: Mappings,\n  blob: FbsBlob,\n  metadata?: Metadata | null\n): RequestInfo<string, Metadata> {\n  const urlPart = location.bucketOnlyServerUrl();\n  const headers: { [prop: string]: string } = {\n    'X-Goog-Upload-Protocol': 'multipart'\n  };\n\n  function genBoundary(): string {\n    let str = '';\n    for (let i = 0; i < 2; i++) {\n      str = str + Math.random().toString().slice(2);\n    }\n    return str;\n  }\n  const boundary = genBoundary();\n  headers['Content-Type'] = 'multipart/related; boundary=' + boundary;\n  const metadata_ = metadataForUpload_(location, blob, metadata);\n  const metadataString = toResourceString(metadata_, mappings);\n  const preBlobPart =\n    '--' +\n    boundary +\n    '\\r\\n' +\n    'Content-Type: application/json; charset=utf-8\\r\\n\\r\\n' +\n    metadataString +\n    '\\r\\n--' +\n    boundary +\n    '\\r\\n' +\n    'Content-Type: ' +\n    metadata_['contentType'] +\n    '\\r\\n\\r\\n';\n  const postBlobPart = '\\r\\n--' + boundary + '--';\n  const body = FbsBlob.getBlob(preBlobPart, blob, postBlobPart);\n  if (body === null) {\n    throw cannotSliceBlob();\n  }\n  const urlParams: UrlParams = { name: metadata_['fullPath']! };\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'POST';\n  const timeout = service.maxUploadRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    metadataHandler(service, mappings),\n    timeout\n  );\n  requestInfo.urlParams = urlParams;\n  requestInfo.headers = headers;\n  requestInfo.body = body.uploadData();\n  requestInfo.errorHandler = sharedErrorHandler(location);\n  return requestInfo;\n}\n\n/**\n * @param current The number of bytes that have been uploaded so far.\n * @param total The total number of bytes in the upload.\n * @param opt_finalized True if the server has finished the upload.\n * @param opt_metadata The upload metadata, should\n *     only be passed if opt_finalized is true.\n */\nexport class ResumableUploadStatus {\n  finalized: boolean;\n  metadata: Metadata | null;\n\n  constructor(\n    public current: number,\n    public total: number,\n    finalized?: boolean,\n    metadata?: Metadata | null\n  ) {\n    this.finalized = !!finalized;\n    this.metadata = metadata || null;\n  }\n}\n\nexport function checkResumeHeader_(\n  xhr: Connection<string>,\n  allowed?: string[]\n): string {\n  let status: string | null = null;\n  try {\n    status = xhr.getResponseHeader('X-Goog-Upload-Status');\n  } catch (e) {\n    handlerCheck(false);\n  }\n  const allowedStatus = allowed || ['active'];\n  handlerCheck(!!status && allowedStatus.indexOf(status) !== -1);\n  return status as string;\n}\n\nexport function createResumableUpload(\n  service: FirebaseStorageImpl,\n  location: Location,\n  mappings: Mappings,\n  blob: FbsBlob,\n  metadata?: Metadata | null\n): RequestInfo<string, string> {\n  const urlPart = location.bucketOnlyServerUrl();\n  const metadataForUpload = metadataForUpload_(location, blob, metadata);\n  const urlParams: UrlParams = { name: metadataForUpload['fullPath']! };\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'POST';\n  const headers = {\n    'X-Goog-Upload-Protocol': 'resumable',\n    'X-Goog-Upload-Command': 'start',\n    'X-Goog-Upload-Header-Content-Length': `${blob.size()}`,\n    'X-Goog-Upload-Header-Content-Type': metadataForUpload['contentType']!,\n    'Content-Type': 'application/json; charset=utf-8'\n  };\n  const body = toResourceString(metadataForUpload, mappings);\n  const timeout = service.maxUploadRetryTime;\n\n  function handler(xhr: Connection<string>): string {\n    checkResumeHeader_(xhr);\n    let url;\n    try {\n      url = xhr.getResponseHeader('X-Goog-Upload-URL');\n    } catch (e) {\n      handlerCheck(false);\n    }\n    handlerCheck(isString(url));\n    return url as string;\n  }\n  const requestInfo = new RequestInfo(url, method, handler, timeout);\n  requestInfo.urlParams = urlParams;\n  requestInfo.headers = headers;\n  requestInfo.body = body;\n  requestInfo.errorHandler = sharedErrorHandler(location);\n  return requestInfo;\n}\n\n/**\n * @param url From a call to fbs.requests.createResumableUpload.\n */\nexport function getResumableUploadStatus(\n  service: FirebaseStorageImpl,\n  location: Location,\n  url: string,\n  blob: FbsBlob\n): RequestInfo<string, ResumableUploadStatus> {\n  const headers = { 'X-Goog-Upload-Command': 'query' };\n\n  function handler(xhr: Connection<string>): ResumableUploadStatus {\n    const status = checkResumeHeader_(xhr, ['active', 'final']);\n    let sizeString: string | null = null;\n    try {\n      sizeString = xhr.getResponseHeader('X-Goog-Upload-Size-Received');\n    } catch (e) {\n      handlerCheck(false);\n    }\n\n    if (!sizeString) {\n      // null or empty string\n      handlerCheck(false);\n    }\n\n    const size = Number(sizeString);\n    handlerCheck(!isNaN(size));\n    return new ResumableUploadStatus(size, blob.size(), status === 'final');\n  }\n  const method = 'POST';\n  const timeout = service.maxUploadRetryTime;\n  const requestInfo = new RequestInfo(url, method, handler, timeout);\n  requestInfo.headers = headers;\n  requestInfo.errorHandler = sharedErrorHandler(location);\n  return requestInfo;\n}\n\n/**\n * Any uploads via the resumable upload API must transfer a number of bytes\n * that is a multiple of this number.\n */\nexport const RESUMABLE_UPLOAD_CHUNK_SIZE: number = 256 * 1024;\n\n/**\n * @param url From a call to fbs.requests.createResumableUpload.\n * @param chunkSize Number of bytes to upload.\n * @param status The previous status.\n *     If not passed or null, we start from the beginning.\n * @throws fbs.Error If the upload is already complete, the passed in status\n *     has a final size inconsistent with the blob, or the blob cannot be sliced\n *     for upload.\n */\nexport function continueResumableUpload(\n  location: Location,\n  service: FirebaseStorageImpl,\n  url: string,\n  blob: FbsBlob,\n  chunkSize: number,\n  mappings: Mappings,\n  status?: ResumableUploadStatus | null,\n  progressCallback?: ((p1: number, p2: number) => void) | null\n): RequestInfo<string, ResumableUploadStatus> {\n  // TODO(andysoto): standardize on internal asserts\n  // assert(!(opt_status && opt_status.finalized));\n  const status_ = new ResumableUploadStatus(0, 0);\n  if (status) {\n    status_.current = status.current;\n    status_.total = status.total;\n  } else {\n    status_.current = 0;\n    status_.total = blob.size();\n  }\n  if (blob.size() !== status_.total) {\n    throw serverFileWrongSize();\n  }\n  const bytesLeft = status_.total - status_.current;\n  let bytesToUpload = bytesLeft;\n  if (chunkSize > 0) {\n    bytesToUpload = Math.min(bytesToUpload, chunkSize);\n  }\n  const startByte = status_.current;\n  const endByte = startByte + bytesToUpload;\n  let uploadCommand = '';\n  if (bytesToUpload === 0) {\n    uploadCommand = 'finalize';\n  } else if (bytesLeft === bytesToUpload) {\n    uploadCommand = 'upload, finalize';\n  } else {\n    uploadCommand = 'upload';\n  }\n  const headers = {\n    'X-Goog-Upload-Command': uploadCommand,\n    'X-Goog-Upload-Offset': `${status_.current}`\n  };\n  const body = blob.slice(startByte, endByte);\n  if (body === null) {\n    throw cannotSliceBlob();\n  }\n\n  function handler(\n    xhr: Connection<string>,\n    text: string\n  ): ResumableUploadStatus {\n    // TODO(andysoto): Verify the MD5 of each uploaded range:\n    // the 'x-range-md5' header comes back with status code 308 responses.\n    // We'll only be able to bail out though, because you can't re-upload a\n    // range that you previously uploaded.\n    const uploadStatus = checkResumeHeader_(xhr, ['active', 'final']);\n    const newCurrent = status_.current + bytesToUpload;\n    const size = blob.size();\n    let metadata;\n    if (uploadStatus === 'final') {\n      metadata = metadataHandler(service, mappings)(xhr, text);\n    } else {\n      metadata = null;\n    }\n    return new ResumableUploadStatus(\n      newCurrent,\n      size,\n      uploadStatus === 'final',\n      metadata\n    );\n  }\n  const method = 'POST';\n  const timeout = service.maxUploadRetryTime;\n  const requestInfo = new RequestInfo(url, method, handler, timeout);\n  requestInfo.headers = headers;\n  requestInfo.body = body.uploadData();\n  requestInfo.progressCallback = progressCallback || null;\n  requestInfo.errorHandler = sharedErrorHandler(location);\n  return requestInfo;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Enumerations used for upload tasks.\n */\n\n/**\n * An event that is triggered on a task.\n * @internal\n */\nexport type TaskEvent = string;\n\n/**\n * An event that is triggered on a task.\n * @internal\n */\nexport const TaskEvent = {\n  /**\n   * For this event,\n   * <ul>\n   *   <li>The `next` function is triggered on progress updates and when the\n   *       task is paused/resumed with an `UploadTaskSnapshot` as the first\n   *       argument.</li>\n   *   <li>The `error` function is triggered if the upload is canceled or fails\n   *       for another reason.</li>\n   *   <li>The `complete` function is triggered if the upload completes\n   *       successfully.</li>\n   * </ul>\n   */\n  STATE_CHANGED: 'state_changed'\n};\n\n/**\n * Internal enum for task state.\n */\nexport const enum InternalTaskState {\n  RUNNING = 'running',\n  PAUSING = 'pausing',\n  PAUSED = 'paused',\n  SUCCESS = 'success',\n  CANCELING = 'canceling',\n  CANCELED = 'canceled',\n  ERROR = 'error'\n}\n\n/**\n * Represents the current state of a running upload.\n * @internal\n */\nexport type TaskState = (typeof TaskState)[keyof typeof TaskState];\n\n// type keys = keyof TaskState\n/**\n * Represents the current state of a running upload.\n * @internal\n */\nexport const TaskState = {\n  /** The task is currently transferring data. */\n  RUNNING: 'running',\n\n  /** The task was paused by the user. */\n  PAUSED: 'paused',\n\n  /** The task completed successfully. */\n  SUCCESS: 'success',\n\n  /** The task was canceled. */\n  CANCELED: 'canceled',\n\n  /** The task failed with an error. */\n  ERROR: 'error'\n} as const;\n\nexport function taskStateFromInternalTaskState(\n  state: InternalTaskState\n): TaskState {\n  switch (state) {\n    case InternalTaskState.RUNNING:\n    case InternalTaskState.PAUSING:\n    case InternalTaskState.CANCELING:\n      return TaskState.RUNNING;\n    case InternalTaskState.PAUSED:\n      return TaskState.PAUSED;\n    case InternalTaskState.SUCCESS:\n      return TaskState.SUCCESS;\n    case InternalTaskState.CANCELED:\n      return TaskState.CANCELED;\n    case InternalTaskState.ERROR:\n      return TaskState.ERROR;\n    default:\n      // TODO(andysoto): assert(false);\n      return TaskState.ERROR;\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport { isFunction } from './type';\nimport { StorageError } from './error';\n\n/**\n * Function that is called once for each value in a stream of values.\n */\nexport type NextFn<T> = (value: T) => void;\n\n/**\n * A function that is called with a `StorageError`\n * if the event stream ends due to an error.\n */\nexport type ErrorFn = (error: StorageError) => void;\n\n/**\n * A function that is called if the event stream ends normally.\n */\nexport type CompleteFn = () => void;\n\n/**\n * Unsubscribes from a stream.\n */\nexport type Unsubscribe = () => void;\n\n/**\n * An observer identical to the `Observer` defined in packages/util except the\n * error passed into the ErrorFn is specifically a `StorageError`.\n */\nexport interface StorageObserver<T> {\n  /**\n   * Function that is called once for each value in the event stream.\n   */\n  next?: NextFn<T>;\n  /**\n   * A function that is called with a `StorageError`\n   * if the event stream ends due to an error.\n   */\n  error?: ErrorFn;\n  /**\n   * A function that is called if the event stream ends normally.\n   */\n  complete?: CompleteFn;\n}\n\n/**\n * Subscribes to an event stream.\n */\nexport type Subscribe<T> = (\n  next?: NextFn<T> | StorageObserver<T>,\n  error?: ErrorFn,\n  complete?: CompleteFn\n) => Unsubscribe;\n\nexport class Observer<T> implements StorageObserver<T> {\n  next?: NextFn<T>;\n  error?: ErrorFn;\n  complete?: CompleteFn;\n\n  constructor(\n    nextOrObserver?: NextFn<T> | StorageObserver<T>,\n    error?: ErrorFn,\n    complete?: CompleteFn\n  ) {\n    const asFunctions =\n      isFunction(nextOrObserver) || error != null || complete != null;\n    if (asFunctions) {\n      this.next = nextOrObserver as NextFn<T>;\n      this.error = error ?? undefined;\n      this.complete = complete ?? undefined;\n    } else {\n      const observer = nextOrObserver as {\n        next?: NextFn<T>;\n        error?: ErrorFn;\n        complete?: CompleteFn;\n      };\n      this.next = observer.next;\n      this.error = observer.error;\n      this.complete = observer.complete;\n    }\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * Returns a function that invokes f with its arguments asynchronously as a\n * microtask, i.e. as soon as possible after the current script returns back\n * into browser code.\n */\n// eslint-disable-next-line @typescript-eslint/ban-types\nexport function async(f: Function): Function {\n  return (...argsToForward: unknown[]) => {\n    // eslint-disable-next-line @typescript-eslint/no-floating-promises\n    Promise.resolve().then(() => f(...argsToForward));\n  };\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { isCloudWorkstation } from '@firebase/util';\nimport {\n  Connection,\n  ConnectionType,\n  ErrorCode,\n  Headers\n} from '../../implementation/connection';\nimport { internalError } from '../../implementation/error';\n\n/** An override for the text-based Connection. Used in tests. */\nlet textFactoryOverride: (() => Connection<string>) | null = null;\n\n/**\n * Network layer for browsers. We use this instead of goog.net.XhrIo because\n * goog.net.XhrIo is hyuuuuge and doesn't work in React Native on Android.\n */\nabstract class XhrConnection<T extends ConnectionType>\n  implements Connection<T>\n{\n  protected xhr_: XMLHttpRequest;\n  private errorCode_: ErrorCode;\n  private sendPromise_: Promise<void>;\n  protected sent_: boolean = false;\n\n  constructor() {\n    this.xhr_ = new XMLHttpRequest();\n    this.initXhr();\n    this.errorCode_ = ErrorCode.NO_ERROR;\n    this.sendPromise_ = new Promise(resolve => {\n      this.xhr_.addEventListener('abort', () => {\n        this.errorCode_ = ErrorCode.ABORT;\n        resolve();\n      });\n      this.xhr_.addEventListener('error', () => {\n        this.errorCode_ = ErrorCode.NETWORK_ERROR;\n        resolve();\n      });\n      this.xhr_.addEventListener('load', () => {\n        resolve();\n      });\n    });\n  }\n\n  abstract initXhr(): void;\n\n  send(\n    url: string,\n    method: string,\n    isUsingEmulator: boolean,\n    body?: ArrayBufferView | Blob | string,\n    headers?: Headers\n  ): Promise<void> {\n    if (this.sent_) {\n      throw internalError('cannot .send() more than once');\n    }\n    if (isCloudWorkstation(url) && isUsingEmulator) {\n      this.xhr_.withCredentials = true;\n    }\n    this.sent_ = true;\n    this.xhr_.open(method, url, true);\n    if (headers !== undefined) {\n      for (const key in headers) {\n        if (headers.hasOwnProperty(key)) {\n          this.xhr_.setRequestHeader(key, headers[key].toString());\n        }\n      }\n    }\n    if (body !== undefined) {\n      this.xhr_.send(body);\n    } else {\n      this.xhr_.send();\n    }\n    return this.sendPromise_;\n  }\n\n  getErrorCode(): ErrorCode {\n    if (!this.sent_) {\n      throw internalError('cannot .getErrorCode() before sending');\n    }\n    return this.errorCode_;\n  }\n\n  getStatus(): number {\n    if (!this.sent_) {\n      throw internalError('cannot .getStatus() before sending');\n    }\n    try {\n      return this.xhr_.status;\n    } catch (e) {\n      return -1;\n    }\n  }\n\n  getResponse(): T {\n    if (!this.sent_) {\n      throw internalError('cannot .getResponse() before sending');\n    }\n    return this.xhr_.response;\n  }\n\n  getErrorText(): string {\n    if (!this.sent_) {\n      throw internalError('cannot .getErrorText() before sending');\n    }\n    return this.xhr_.statusText;\n  }\n\n  /** Aborts the request. */\n  abort(): void {\n    this.xhr_.abort();\n  }\n\n  getResponseHeader(header: string): string | null {\n    return this.xhr_.getResponseHeader(header);\n  }\n\n  addUploadProgressListener(listener: (p1: ProgressEvent) => void): void {\n    if (this.xhr_.upload != null) {\n      this.xhr_.upload.addEventListener('progress', listener);\n    }\n  }\n\n  removeUploadProgressListener(listener: (p1: ProgressEvent) => void): void {\n    if (this.xhr_.upload != null) {\n      this.xhr_.upload.removeEventListener('progress', listener);\n    }\n  }\n}\n\nexport class XhrTextConnection extends XhrConnection<string> {\n  initXhr(): void {\n    this.xhr_.responseType = 'text';\n  }\n}\n\nexport function newTextConnection(): Connection<string> {\n  return textFactoryOverride ? textFactoryOverride() : new XhrTextConnection();\n}\n\nexport class XhrBytesConnection extends XhrConnection<ArrayBuffer> {\n  private data_?: ArrayBuffer;\n\n  initXhr(): void {\n    this.xhr_.responseType = 'arraybuffer';\n  }\n}\n\nexport function newBytesConnection(): Connection<ArrayBuffer> {\n  return new XhrBytesConnection();\n}\n\nexport class XhrBlobConnection extends XhrConnection<Blob> {\n  initXhr(): void {\n    this.xhr_.responseType = 'blob';\n  }\n}\n\nexport function newBlobConnection(): Connection<Blob> {\n  return new XhrBlobConnection();\n}\n\nexport function newStreamConnection(): Connection<ReadableStream> {\n  throw new Error('Streams are only supported on Node');\n}\n\nexport function injectTestConnection(\n  factory: (() => Connection<string>) | null\n): void {\n  textFactoryOverride = factory;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * @fileoverview Defines types for interacting with blob transfer tasks.\n */\n\nimport { FbsBlob } from './implementation/blob';\nimport {\n  canceled,\n  StorageErrorCode,\n  StorageError,\n  retryLimitExceeded\n} from './implementation/error';\nimport {\n  InternalTaskState,\n  TaskEvent,\n  TaskState,\n  taskStateFromInternalTaskState\n} from './implementation/taskenums';\nimport { Metadata } from './metadata';\nimport {\n  Observer,\n  Subscribe,\n  Unsubscribe,\n  StorageObserver as StorageObserverInternal,\n  NextFn\n} from './implementation/observer';\nimport { Request } from './implementation/request';\nimport { UploadTaskSnapshot, StorageObserver } from './public-types';\nimport { async as fbsAsync } from './implementation/async';\nimport { Mappings, getMappings } from './implementation/metadata';\nimport {\n  createResumableUpload,\n  getResumableUploadStatus,\n  RESUMABLE_UPLOAD_CHUNK_SIZE,\n  ResumableUploadStatus,\n  continueResumableUpload,\n  getMetadata,\n  multipartUpload\n} from './implementation/requests';\nimport { Reference } from './reference';\nimport { newTextConnection } from './platform/connection';\nimport { isRetryStatusCode } from './implementation/utils';\nimport { CompleteFn } from '@firebase/util';\nimport { DEFAULT_MIN_SLEEP_TIME_MILLIS } from './implementation/constants';\n\n/**\n * Represents a blob being uploaded. Can be used to pause/resume/cancel the\n * upload and manage callbacks for various events.\n * @internal\n */\nexport class UploadTask {\n  private _ref: Reference;\n  /**\n   * The data to be uploaded.\n   */\n  _blob: FbsBlob;\n  /**\n   * Metadata related to the upload.\n   */\n  _metadata: Metadata | null;\n  private _mappings: Mappings;\n  /**\n   * Number of bytes transferred so far.\n   */\n  _transferred: number = 0;\n  private _needToFetchStatus: boolean = false;\n  private _needToFetchMetadata: boolean = false;\n  private _observers: Array<StorageObserverInternal<UploadTaskSnapshot>> = [];\n  private _resumable: boolean;\n  /**\n   * Upload state.\n   */\n  _state: InternalTaskState;\n  private _error?: StorageError = undefined;\n  private _uploadUrl?: string = undefined;\n  private _request?: Request<unknown> = undefined;\n  private _chunkMultiplier: number = 1;\n  private _errorHandler: (p1: StorageError) => void;\n  private _metadataErrorHandler: (p1: StorageError) => void;\n  private _resolve?: (p1: UploadTaskSnapshot) => void = undefined;\n  private _reject?: (p1: StorageError) => void = undefined;\n  private pendingTimeout?: ReturnType<typeof setTimeout>;\n  private _promise: Promise<UploadTaskSnapshot>;\n\n  private sleepTime: number;\n\n  private maxSleepTime: number;\n\n  isExponentialBackoffExpired(): boolean {\n    return this.sleepTime > this.maxSleepTime;\n  }\n\n  /**\n   * @param ref - The firebaseStorage.Reference object this task came\n   *     from, untyped to avoid cyclic dependencies.\n   * @param blob - The blob to upload.\n   */\n  constructor(ref: Reference, blob: FbsBlob, metadata: Metadata | null = null) {\n    this._ref = ref;\n    this._blob = blob;\n    this._metadata = metadata;\n    this._mappings = getMappings();\n    this._resumable = this._shouldDoResumable(this._blob);\n    this._state = InternalTaskState.RUNNING;\n    this._errorHandler = error => {\n      this._request = undefined;\n      this._chunkMultiplier = 1;\n      if (error._codeEquals(StorageErrorCode.CANCELED)) {\n        this._needToFetchStatus = true;\n        this.completeTransitions_();\n      } else {\n        const backoffExpired = this.isExponentialBackoffExpired();\n        if (isRetryStatusCode(error.status, [])) {\n          if (backoffExpired) {\n            error = retryLimitExceeded();\n          } else {\n            this.sleepTime = Math.max(\n              this.sleepTime * 2,\n              DEFAULT_MIN_SLEEP_TIME_MILLIS\n            );\n            this._needToFetchStatus = true;\n            this.completeTransitions_();\n            return;\n          }\n        }\n        this._error = error;\n        this._transition(InternalTaskState.ERROR);\n      }\n    };\n    this._metadataErrorHandler = error => {\n      this._request = undefined;\n      if (error._codeEquals(StorageErrorCode.CANCELED)) {\n        this.completeTransitions_();\n      } else {\n        this._error = error;\n        this._transition(InternalTaskState.ERROR);\n      }\n    };\n    this.sleepTime = 0;\n    this.maxSleepTime = this._ref.storage.maxUploadRetryTime;\n    this._promise = new Promise((resolve, reject) => {\n      this._resolve = resolve;\n      this._reject = reject;\n      this._start();\n    });\n\n    // Prevent uncaught rejections on the internal promise from bubbling out\n    // to the top level with a dummy handler.\n    this._promise.then(null, () => {});\n  }\n\n  private _makeProgressCallback(): (p1: number, p2: number) => void {\n    const sizeBefore = this._transferred;\n    return loaded => this._updateProgress(sizeBefore + loaded);\n  }\n\n  private _shouldDoResumable(blob: FbsBlob): boolean {\n    return blob.size() > 256 * 1024;\n  }\n\n  private _start(): void {\n    if (this._state !== InternalTaskState.RUNNING) {\n      // This can happen if someone pauses us in a resume callback, for example.\n      return;\n    }\n    if (this._request !== undefined) {\n      return;\n    }\n    if (this._resumable) {\n      if (this._uploadUrl === undefined) {\n        this._createResumable();\n      } else {\n        if (this._needToFetchStatus) {\n          this._fetchStatus();\n        } else {\n          if (this._needToFetchMetadata) {\n            // Happens if we miss the metadata on upload completion.\n            this._fetchMetadata();\n          } else {\n            this.pendingTimeout = setTimeout(() => {\n              this.pendingTimeout = undefined;\n              this._continueUpload();\n            }, this.sleepTime);\n          }\n        }\n      }\n    } else {\n      this._oneShotUpload();\n    }\n  }\n\n  private _resolveToken(\n    callback: (authToken: string | null, appCheckToken: string | null) => void\n  ): void {\n    // eslint-disable-next-line @typescript-eslint/no-floating-promises\n    Promise.all([\n      this._ref.storage._getAuthToken(),\n      this._ref.storage._getAppCheckToken()\n    ]).then(([authToken, appCheckToken]) => {\n      switch (this._state) {\n        case InternalTaskState.RUNNING:\n          callback(authToken, appCheckToken);\n          break;\n        case InternalTaskState.CANCELING:\n          this._transition(InternalTaskState.CANCELED);\n          break;\n        case InternalTaskState.PAUSING:\n          this._transition(InternalTaskState.PAUSED);\n          break;\n        default:\n      }\n    });\n  }\n\n  // TODO(andysoto): assert false\n\n  private _createResumable(): void {\n    this._resolveToken((authToken, appCheckToken) => {\n      const requestInfo = createResumableUpload(\n        this._ref.storage,\n        this._ref._location,\n        this._mappings,\n        this._blob,\n        this._metadata\n      );\n      const createRequest = this._ref.storage._makeRequest(\n        requestInfo,\n        newTextConnection,\n        authToken,\n        appCheckToken\n      );\n      this._request = createRequest;\n      createRequest.getPromise().then((url: string) => {\n        this._request = undefined;\n        this._uploadUrl = url;\n        this._needToFetchStatus = false;\n        this.completeTransitions_();\n      }, this._errorHandler);\n    });\n  }\n\n  private _fetchStatus(): void {\n    // TODO(andysoto): assert(this.uploadUrl_ !== null);\n    const url = this._uploadUrl as string;\n    this._resolveToken((authToken, appCheckToken) => {\n      const requestInfo = getResumableUploadStatus(\n        this._ref.storage,\n        this._ref._location,\n        url,\n        this._blob\n      );\n      const statusRequest = this._ref.storage._makeRequest(\n        requestInfo,\n        newTextConnection,\n        authToken,\n        appCheckToken\n      );\n      this._request = statusRequest;\n      statusRequest.getPromise().then(status => {\n        status = status as ResumableUploadStatus;\n        this._request = undefined;\n        this._updateProgress(status.current);\n        this._needToFetchStatus = false;\n        if (status.finalized) {\n          this._needToFetchMetadata = true;\n        }\n        this.completeTransitions_();\n      }, this._errorHandler);\n    });\n  }\n\n  private _continueUpload(): void {\n    const chunkSize = RESUMABLE_UPLOAD_CHUNK_SIZE * this._chunkMultiplier;\n    const status = new ResumableUploadStatus(\n      this._transferred,\n      this._blob.size()\n    );\n\n    // TODO(andysoto): assert(this.uploadUrl_ !== null);\n    const url = this._uploadUrl as string;\n    this._resolveToken((authToken, appCheckToken) => {\n      let requestInfo;\n      try {\n        requestInfo = continueResumableUpload(\n          this._ref._location,\n          this._ref.storage,\n          url,\n          this._blob,\n          chunkSize,\n          this._mappings,\n          status,\n          this._makeProgressCallback()\n        );\n      } catch (e) {\n        this._error = e as StorageError;\n        this._transition(InternalTaskState.ERROR);\n        return;\n      }\n      const uploadRequest = this._ref.storage._makeRequest(\n        requestInfo,\n        newTextConnection,\n        authToken,\n        appCheckToken,\n        /*retry=*/ false // Upload requests should not be retried as each retry should be preceded by another query request. Which is handled in this file.\n      );\n      this._request = uploadRequest;\n      uploadRequest.getPromise().then((newStatus: ResumableUploadStatus) => {\n        this._increaseMultiplier();\n        this._request = undefined;\n        this._updateProgress(newStatus.current);\n        if (newStatus.finalized) {\n          this._metadata = newStatus.metadata;\n          this._transition(InternalTaskState.SUCCESS);\n        } else {\n          this.completeTransitions_();\n        }\n      }, this._errorHandler);\n    });\n  }\n\n  private _increaseMultiplier(): void {\n    const currentSize = RESUMABLE_UPLOAD_CHUNK_SIZE * this._chunkMultiplier;\n\n    // Max chunk size is 32M.\n    if (currentSize * 2 < 32 * 1024 * 1024) {\n      this._chunkMultiplier *= 2;\n    }\n  }\n\n  private _fetchMetadata(): void {\n    this._resolveToken((authToken, appCheckToken) => {\n      const requestInfo = getMetadata(\n        this._ref.storage,\n        this._ref._location,\n        this._mappings\n      );\n      const metadataRequest = this._ref.storage._makeRequest(\n        requestInfo,\n        newTextConnection,\n        authToken,\n        appCheckToken\n      );\n      this._request = metadataRequest;\n      metadataRequest.getPromise().then(metadata => {\n        this._request = undefined;\n        this._metadata = metadata;\n        this._transition(InternalTaskState.SUCCESS);\n      }, this._metadataErrorHandler);\n    });\n  }\n\n  private _oneShotUpload(): void {\n    this._resolveToken((authToken, appCheckToken) => {\n      const requestInfo = multipartUpload(\n        this._ref.storage,\n        this._ref._location,\n        this._mappings,\n        this._blob,\n        this._metadata\n      );\n      const multipartRequest = this._ref.storage._makeRequest(\n        requestInfo,\n        newTextConnection,\n        authToken,\n        appCheckToken\n      );\n      this._request = multipartRequest;\n      multipartRequest.getPromise().then(metadata => {\n        this._request = undefined;\n        this._metadata = metadata;\n        this._updateProgress(this._blob.size());\n        this._transition(InternalTaskState.SUCCESS);\n      }, this._errorHandler);\n    });\n  }\n\n  private _updateProgress(transferred: number): void {\n    const old = this._transferred;\n    this._transferred = transferred;\n\n    // A progress update can make the \"transferred\" value smaller (e.g. a\n    // partial upload not completed by server, after which the \"transferred\"\n    // value may reset to the value at the beginning of the request).\n    if (this._transferred !== old) {\n      this._notifyObservers();\n    }\n  }\n\n  private _transition(state: InternalTaskState): void {\n    if (this._state === state) {\n      return;\n    }\n    switch (state) {\n      case InternalTaskState.CANCELING:\n      case InternalTaskState.PAUSING:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.RUNNING ||\n        //        this.state_ === InternalTaskState.PAUSING);\n        this._state = state;\n        if (this._request !== undefined) {\n          this._request.cancel();\n        } else if (this.pendingTimeout) {\n          clearTimeout(this.pendingTimeout);\n          this.pendingTimeout = undefined;\n          this.completeTransitions_();\n        }\n        break;\n      case InternalTaskState.RUNNING:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.PAUSED ||\n        //        this.state_ === InternalTaskState.PAUSING);\n        const wasPaused = this._state === InternalTaskState.PAUSED;\n        this._state = state;\n        if (wasPaused) {\n          this._notifyObservers();\n          this._start();\n        }\n        break;\n      case InternalTaskState.PAUSED:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.PAUSING);\n        this._state = state;\n        this._notifyObservers();\n        break;\n      case InternalTaskState.CANCELED:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.PAUSED ||\n        //        this.state_ === InternalTaskState.CANCELING);\n        this._error = canceled();\n        this._state = state;\n        this._notifyObservers();\n        break;\n      case InternalTaskState.ERROR:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.RUNNING ||\n        //        this.state_ === InternalTaskState.PAUSING ||\n        //        this.state_ === InternalTaskState.CANCELING);\n        this._state = state;\n        this._notifyObservers();\n        break;\n      case InternalTaskState.SUCCESS:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.RUNNING ||\n        //        this.state_ === InternalTaskState.PAUSING ||\n        //        this.state_ === InternalTaskState.CANCELING);\n        this._state = state;\n        this._notifyObservers();\n        break;\n      default: // Ignore\n    }\n  }\n\n  private completeTransitions_(): void {\n    switch (this._state) {\n      case InternalTaskState.PAUSING:\n        this._transition(InternalTaskState.PAUSED);\n        break;\n      case InternalTaskState.CANCELING:\n        this._transition(InternalTaskState.CANCELED);\n        break;\n      case InternalTaskState.RUNNING:\n        this._start();\n        break;\n      default:\n        // TODO(andysoto): assert(false);\n        break;\n    }\n  }\n\n  /**\n   * A snapshot of the current task state.\n   */\n  get snapshot(): UploadTaskSnapshot {\n    const externalState = taskStateFromInternalTaskState(this._state);\n    return {\n      bytesTransferred: this._transferred,\n      totalBytes: this._blob.size(),\n      state: externalState,\n      metadata: this._metadata!,\n      task: this,\n      ref: this._ref\n    };\n  }\n\n  /**\n   * Adds a callback for an event.\n   * @param type - The type of event to listen for.\n   * @param nextOrObserver -\n   *     The `next` function, which gets called for each item in\n   *     the event stream, or an observer object with some or all of these three\n   *     properties (`next`, `error`, `complete`).\n   * @param error - A function that gets called with a `StorageError`\n   *     if the event stream ends due to an error.\n   * @param completed - A function that gets called if the\n   *     event stream ends normally.\n   * @returns\n   *     If only the event argument is passed, returns a function you can use to\n   *     add callbacks (see the examples above). If more than just the event\n   *     argument is passed, returns a function you can call to unregister the\n   *     callbacks.\n   */\n  on(\n    type: TaskEvent,\n    nextOrObserver?:\n      | StorageObserver<UploadTaskSnapshot>\n      | null\n      | ((snapshot: UploadTaskSnapshot) => unknown),\n    error?: ((a: StorageError) => unknown) | null,\n    completed?: CompleteFn | null\n  ): Unsubscribe | Subscribe<UploadTaskSnapshot> {\n    // Note: `type` isn't being used. Its type is also incorrect. TaskEvent should not be a string.\n    const observer = new Observer(\n      (nextOrObserver as\n        | StorageObserverInternal<UploadTaskSnapshot>\n        | NextFn<UploadTaskSnapshot>) || undefined,\n      error || undefined,\n      completed || undefined\n    );\n    this._addObserver(observer);\n    return () => {\n      this._removeObserver(observer);\n    };\n  }\n\n  /**\n   * This object behaves like a Promise, and resolves with its snapshot data\n   * when the upload completes.\n   * @param onFulfilled - The fulfillment callback. Promise chaining works as normal.\n   * @param onRejected - The rejection callback.\n   */\n  then<U>(\n    onFulfilled?: ((value: UploadTaskSnapshot) => U | Promise<U>) | null,\n    onRejected?: ((error: StorageError) => U | Promise<U>) | null\n  ): Promise<U> {\n    // These casts are needed so that TypeScript can infer the types of the\n    // resulting Promise.\n    return this._promise.then<U>(\n      onFulfilled as (value: UploadTaskSnapshot) => U | Promise<U>,\n      onRejected as ((error: unknown) => Promise<never>) | null\n    );\n  }\n\n  /**\n   * Equivalent to calling `then(null, onRejected)`.\n   */\n  catch<T>(onRejected: (p1: StorageError) => T | Promise<T>): Promise<T> {\n    return this.then(null, onRejected);\n  }\n\n  /**\n   * Adds the given observer.\n   */\n  private _addObserver(observer: Observer<UploadTaskSnapshot>): void {\n    this._observers.push(observer);\n    this._notifyObserver(observer);\n  }\n\n  /**\n   * Removes the given observer.\n   */\n  private _removeObserver(observer: Observer<UploadTaskSnapshot>): void {\n    const i = this._observers.indexOf(observer);\n    if (i !== -1) {\n      this._observers.splice(i, 1);\n    }\n  }\n\n  private _notifyObservers(): void {\n    this._finishPromise();\n    const observers = this._observers.slice();\n    observers.forEach(observer => {\n      this._notifyObserver(observer);\n    });\n  }\n\n  private _finishPromise(): void {\n    if (this._resolve !== undefined) {\n      let triggered = true;\n      switch (taskStateFromInternalTaskState(this._state)) {\n        case TaskState.SUCCESS:\n          fbsAsync(this._resolve.bind(null, this.snapshot))();\n          break;\n        case TaskState.CANCELED:\n        case TaskState.ERROR:\n          const toCall = this._reject as (p1: StorageError) => void;\n          fbsAsync(toCall.bind(null, this._error as StorageError))();\n          break;\n        default:\n          triggered = false;\n          break;\n      }\n      if (triggered) {\n        this._resolve = undefined;\n        this._reject = undefined;\n      }\n    }\n  }\n\n  private _notifyObserver(observer: Observer<UploadTaskSnapshot>): void {\n    const externalState = taskStateFromInternalTaskState(this._state);\n    switch (externalState) {\n      case TaskState.RUNNING:\n      case TaskState.PAUSED:\n        if (observer.next) {\n          fbsAsync(observer.next.bind(observer, this.snapshot))();\n        }\n        break;\n      case TaskState.SUCCESS:\n        if (observer.complete) {\n          fbsAsync(observer.complete.bind(observer))();\n        }\n        break;\n      case TaskState.CANCELED:\n      case TaskState.ERROR:\n        if (observer.error) {\n          fbsAsync(\n            observer.error.bind(observer, this._error as StorageError)\n          )();\n        }\n        break;\n      default:\n        // TODO(andysoto): assert(false);\n        if (observer.error) {\n          fbsAsync(\n            observer.error.bind(observer, this._error as StorageError)\n          )();\n        }\n    }\n  }\n\n  /**\n   * Resumes a paused task. Has no effect on a currently running or failed task.\n   * @returns True if the operation took effect, false if ignored.\n   */\n  resume(): boolean {\n    const valid =\n      this._state === InternalTaskState.PAUSED ||\n      this._state === InternalTaskState.PAUSING;\n    if (valid) {\n      this._transition(InternalTaskState.RUNNING);\n    }\n    return valid;\n  }\n\n  /**\n   * Pauses a currently running task. Has no effect on a paused or failed task.\n   * @returns True if the operation took effect, false if ignored.\n   */\n  pause(): boolean {\n    const valid = this._state === InternalTaskState.RUNNING;\n    if (valid) {\n      this._transition(InternalTaskState.PAUSING);\n    }\n    return valid;\n  }\n\n  /**\n   * Cancels a currently running or paused task. Has no effect on a complete or\n   * failed task.\n   * @returns True if the operation took effect, false if ignored.\n   */\n  cancel(): boolean {\n    const valid =\n      this._state === InternalTaskState.RUNNING ||\n      this._state === InternalTaskState.PAUSING;\n    if (valid) {\n      this._transition(InternalTaskState.CANCELING);\n    }\n    return valid;\n  }\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Defines the Firebase StorageReference class.\n */\n\nimport { FbsBlob } from './implementation/blob';\nimport { Location } from './implementation/location';\nimport { getMappings } from './implementation/metadata';\nimport { child, lastComponent, parent } from './implementation/path';\nimport {\n  deleteObject as requestsDeleteObject,\n  getBytes,\n  getDownloadUrl as requestsGetDownloadUrl,\n  getMetadata as requestsGetMetadata,\n  list as requestsList,\n  multipartUpload,\n  updateMetadata as requestsUpdateMetadata\n} from './implementation/requests';\nimport { ListOptions, UploadResult } from './public-types';\nimport { dataFromString, StringFormat } from './implementation/string';\nimport { Metadata } from './metadata';\nimport { FirebaseStorageImpl } from './service';\nimport { ListResult } from './list';\nimport { UploadTask } from './task';\nimport { invalidRootOperation, noDownloadURL } from './implementation/error';\nimport { validateNumber } from './implementation/type';\nimport {\n  newBlobConnection,\n  newBytesConnection,\n  newStreamConnection,\n  newTextConnection\n} from './platform/connection';\nimport { RequestInfo } from './implementation/requestinfo';\n\n/**\n * Provides methods to interact with a bucket in the Firebase Storage service.\n * @internal\n * @param _location - An fbs.location, or the URL at\n *     which to base this object, in one of the following forms:\n *         gs://<bucket>/<object-path>\n *         http[s]://firebasestorage.googleapis.com/\n *                     <api-version>/b/<bucket>/o/<object-path>\n *     Any query or fragment strings will be ignored in the http[s]\n *     format. If no value is passed, the storage object will use a URL based on\n *     the project ID of the base firebase.App instance.\n */\nexport class Reference {\n  _location: Location;\n\n  constructor(\n    private _service: FirebaseStorageImpl,\n    location: string | Location\n  ) {\n    if (location instanceof Location) {\n      this._location = location;\n    } else {\n      this._location = Location.makeFromUrl(location, _service.host);\n    }\n  }\n\n  /**\n   * Returns the URL for the bucket and path this object references,\n   *     in the form gs://<bucket>/<object-path>\n   * @override\n   */\n  toString(): string {\n    return 'gs://' + this._location.bucket + '/' + this._location.path;\n  }\n\n  protected _newRef(\n    service: FirebaseStorageImpl,\n    location: Location\n  ): Reference {\n    return new Reference(service, location);\n  }\n\n  /**\n   * A reference to the root of this object's bucket.\n   */\n  get root(): Reference {\n    const location = new Location(this._location.bucket, '');\n    return this._newRef(this._service, location);\n  }\n\n  /**\n   * The name of the bucket containing this reference's object.\n   */\n  get bucket(): string {\n    return this._location.bucket;\n  }\n\n  /**\n   * The full path of this object.\n   */\n  get fullPath(): string {\n    return this._location.path;\n  }\n\n  /**\n   * The short name of this object, which is the last component of the full path.\n   * For example, if fullPath is 'full/path/image.png', name is 'image.png'.\n   */\n  get name(): string {\n    return lastComponent(this._location.path);\n  }\n\n  /**\n   * The `StorageService` instance this `StorageReference` is associated with.\n   */\n  get storage(): FirebaseStorageImpl {\n    return this._service;\n  }\n\n  /**\n   * A `StorageReference` pointing to the parent location of this `StorageReference`, or null if\n   * this reference is the root.\n   */\n  get parent(): Reference | null {\n    const newPath = parent(this._location.path);\n    if (newPath === null) {\n      return null;\n    }\n    const location = new Location(this._location.bucket, newPath);\n    return new Reference(this._service, location);\n  }\n\n  /**\n   * Utility function to throw an error in methods that do not accept a root reference.\n   */\n  _throwIfRoot(name: string): void {\n    if (this._location.path === '') {\n      throw invalidRootOperation(name);\n    }\n  }\n}\n\n/**\n * Download the bytes at the object's location.\n * @returns A Promise containing the downloaded bytes.\n */\nexport function getBytesInternal(\n  ref: Reference,\n  maxDownloadSizeBytes?: number\n): Promise<ArrayBuffer> {\n  ref._throwIfRoot('getBytes');\n  const requestInfo = getBytes(\n    ref.storage,\n    ref._location,\n    maxDownloadSizeBytes\n  );\n  return ref.storage\n    .makeRequestWithTokens(requestInfo, newBytesConnection)\n    .then(bytes =>\n      maxDownloadSizeBytes !== undefined\n        ? // GCS may not honor the Range header for small files\n          (bytes as ArrayBuffer).slice(0, maxDownloadSizeBytes)\n        : (bytes as ArrayBuffer)\n    );\n}\n\n/**\n * Download the bytes at the object's location.\n * @returns A Promise containing the downloaded blob.\n */\nexport function getBlobInternal(\n  ref: Reference,\n  maxDownloadSizeBytes?: number\n): Promise<Blob> {\n  ref._throwIfRoot('getBlob');\n  const requestInfo = getBytes(\n    ref.storage,\n    ref._location,\n    maxDownloadSizeBytes\n  );\n  return ref.storage\n    .makeRequestWithTokens(requestInfo, newBlobConnection)\n    .then(blob =>\n      maxDownloadSizeBytes !== undefined\n        ? // GCS may not honor the Range header for small files\n          (blob as Blob).slice(0, maxDownloadSizeBytes)\n        : (blob as Blob)\n    );\n}\n\n/** Stream the bytes at the object's location. */\nexport function getStreamInternal(\n  ref: Reference,\n  maxDownloadSizeBytes?: number\n): ReadableStream {\n  ref._throwIfRoot('getStream');\n  const requestInfo: RequestInfo<ReadableStream, ReadableStream> = getBytes(\n    ref.storage,\n    ref._location,\n    maxDownloadSizeBytes\n  );\n\n  // Transforms the stream so that only `maxDownloadSizeBytes` bytes are piped to the result\n  const newMaxSizeTransform = (n: number): Transformer => {\n    let missingBytes = n;\n    return {\n      transform(chunk, controller: TransformStreamDefaultController) {\n        // GCS may not honor the Range header for small files\n        if (chunk.length < missingBytes) {\n          controller.enqueue(chunk);\n          missingBytes -= chunk.length;\n        } else {\n          controller.enqueue(chunk.slice(0, missingBytes));\n          controller.terminate();\n        }\n      }\n    };\n  };\n\n  const result =\n    maxDownloadSizeBytes !== undefined\n      ? new TransformStream(newMaxSizeTransform(maxDownloadSizeBytes))\n      : new TransformStream(); // The default transformer forwards all chunks to its readable side\n\n  ref.storage\n    .makeRequestWithTokens(requestInfo, newStreamConnection)\n    .then(readableStream => readableStream.pipeThrough(result))\n    .catch(err => result.writable.abort(err));\n\n  return result.readable;\n}\n\n/**\n * Uploads data to this object's location.\n * The upload is not resumable.\n *\n * @param ref - StorageReference where data should be uploaded.\n * @param data - The data to upload.\n * @param metadata - Metadata for the newly uploaded data.\n * @returns A Promise containing an UploadResult\n */\nexport function uploadBytes(\n  ref: Reference,\n  data: Blob | Uint8Array | ArrayBuffer,\n  metadata?: Metadata\n): Promise<UploadResult> {\n  ref._throwIfRoot('uploadBytes');\n  const requestInfo = multipartUpload(\n    ref.storage,\n    ref._location,\n    getMappings(),\n    new FbsBlob(data, true),\n    metadata\n  );\n  return ref.storage\n    .makeRequestWithTokens(requestInfo, newTextConnection)\n    .then(finalMetadata => {\n      return {\n        metadata: finalMetadata,\n        ref\n      };\n    });\n}\n\n/**\n * Uploads data to this object's location.\n * The upload can be paused and resumed, and exposes progress updates.\n * @public\n * @param ref - StorageReference where data should be uploaded.\n * @param data - The data to upload.\n * @param metadata - Metadata for the newly uploaded data.\n * @returns An UploadTask\n */\nexport function uploadBytesResumable(\n  ref: Reference,\n  data: Blob | Uint8Array | ArrayBuffer,\n  metadata?: Metadata\n): UploadTask {\n  ref._throwIfRoot('uploadBytesResumable');\n  return new UploadTask(ref, new FbsBlob(data), metadata);\n}\n\n/**\n * Uploads a string to this object's location.\n * The upload is not resumable.\n * @public\n * @param ref - StorageReference where string should be uploaded.\n * @param value - The string to upload.\n * @param format - The format of the string to upload.\n * @param metadata - Metadata for the newly uploaded string.\n * @returns A Promise containing an UploadResult\n */\nexport function uploadString(\n  ref: Reference,\n  value: string,\n  format: StringFormat = StringFormat.RAW,\n  metadata?: Metadata\n): Promise<UploadResult> {\n  ref._throwIfRoot('uploadString');\n  const data = dataFromString(format, value);\n  const metadataClone = { ...metadata } as Metadata;\n  if (metadataClone['contentType'] == null && data.contentType != null) {\n    metadataClone['contentType'] = data.contentType!;\n  }\n  return uploadBytes(ref, data.data, metadataClone);\n}\n\n/**\n * List all items (files) and prefixes (folders) under this storage reference.\n *\n * This is a helper method for calling list() repeatedly until there are\n * no more results. The default pagination size is 1000.\n *\n * Note: The results may not be consistent if objects are changed while this\n * operation is running.\n *\n * Warning: listAll may potentially consume too many resources if there are\n * too many results.\n * @public\n * @param ref - StorageReference to get list from.\n *\n * @returns A Promise that resolves with all the items and prefixes under\n *      the current storage reference. `prefixes` contains references to\n *      sub-directories and `items` contains references to objects in this\n *      folder. `nextPageToken` is never returned.\n */\nexport function listAll(ref: Reference): Promise<ListResult> {\n  const accumulator: ListResult = {\n    prefixes: [],\n    items: []\n  };\n  return listAllHelper(ref, accumulator).then(() => accumulator);\n}\n\n/**\n * Separated from listAll because async functions can't use \"arguments\".\n * @param ref\n * @param accumulator\n * @param pageToken\n */\nasync function listAllHelper(\n  ref: Reference,\n  accumulator: ListResult,\n  pageToken?: string\n): Promise<void> {\n  const opt: ListOptions = {\n    // maxResults is 1000 by default.\n    pageToken\n  };\n  const nextPage = await list(ref, opt);\n  accumulator.prefixes.push(...nextPage.prefixes);\n  accumulator.items.push(...nextPage.items);\n  if (nextPage.nextPageToken != null) {\n    await listAllHelper(ref, accumulator, nextPage.nextPageToken);\n  }\n}\n\n/**\n * List items (files) and prefixes (folders) under this storage reference.\n *\n * List API is only available for Firebase Rules Version 2.\n *\n * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'\n * delimited folder structure.\n * Refer to GCS's List API if you want to learn more.\n *\n * To adhere to Firebase Rules's Semantics, Firebase Storage does not\n * support objects whose paths end with \"/\" or contain two consecutive\n * \"/\"s. Firebase Storage List API will filter these unsupported objects.\n * list() may fail if there are too many unsupported objects in the bucket.\n * @public\n *\n * @param ref - StorageReference to get list from.\n * @param options - See ListOptions for details.\n * @returns A Promise that resolves with the items and prefixes.\n *      `prefixes` contains references to sub-folders and `items`\n *      contains references to objects in this folder. `nextPageToken`\n *      can be used to get the rest of the results.\n */\nexport function list(\n  ref: Reference,\n  options?: ListOptions | null\n): Promise<ListResult> {\n  if (options != null) {\n    if (typeof options.maxResults === 'number') {\n      validateNumber(\n        'options.maxResults',\n        /* minValue= */ 1,\n        /* maxValue= */ 1000,\n        options.maxResults\n      );\n    }\n  }\n  const op = options || {};\n  const requestInfo = requestsList(\n    ref.storage,\n    ref._location,\n    /*delimiter= */ '/',\n    op.pageToken,\n    op.maxResults\n  );\n  return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);\n}\n\n/**\n * A `Promise` that resolves with the metadata for this object. If this\n * object doesn't exist or metadata cannot be retrieved, the promise is\n * rejected.\n * @public\n * @param ref - StorageReference to get metadata from.\n */\nexport function getMetadata(ref: Reference): Promise<Metadata> {\n  ref._throwIfRoot('getMetadata');\n  const requestInfo = requestsGetMetadata(\n    ref.storage,\n    ref._location,\n    getMappings()\n  );\n  return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);\n}\n\n/**\n * Updates the metadata for this object.\n * @public\n * @param ref - StorageReference to update metadata for.\n * @param metadata - The new metadata for the object.\n *     Only values that have been explicitly set will be changed. Explicitly\n *     setting a value to null will remove the metadata.\n * @returns A `Promise` that resolves\n *     with the new metadata for this object.\n *     See `firebaseStorage.Reference.prototype.getMetadata`\n */\nexport function updateMetadata(\n  ref: Reference,\n  metadata: Partial<Metadata>\n): Promise<Metadata> {\n  ref._throwIfRoot('updateMetadata');\n  const requestInfo = requestsUpdateMetadata(\n    ref.storage,\n    ref._location,\n    metadata,\n    getMappings()\n  );\n  return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);\n}\n\n/**\n * Returns the download URL for the given Reference.\n * @public\n * @returns A `Promise` that resolves with the download\n *     URL for this object.\n */\nexport function getDownloadURL(ref: Reference): Promise<string> {\n  ref._throwIfRoot('getDownloadURL');\n  const requestInfo = requestsGetDownloadUrl(\n    ref.storage,\n    ref._location,\n    getMappings()\n  );\n  return ref.storage\n    .makeRequestWithTokens(requestInfo, newTextConnection)\n    .then(url => {\n      if (url === null) {\n        throw noDownloadURL();\n      }\n      return url;\n    });\n}\n\n/**\n * Deletes the object at this location.\n * @public\n * @param ref - StorageReference for object to delete.\n * @returns A `Promise` that resolves if the deletion succeeds.\n */\nexport function deleteObject(ref: Reference): Promise<void> {\n  ref._throwIfRoot('deleteObject');\n  const requestInfo = requestsDeleteObject(ref.storage, ref._location);\n  return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);\n}\n\n/**\n * Returns reference for object obtained by appending `childPath` to `ref`.\n *\n * @param ref - StorageReference to get child of.\n * @param childPath - Child path from provided ref.\n * @returns A reference to the object obtained by\n * appending childPath, removing any duplicate, beginning, or trailing\n * slashes.\n *\n */\nexport function _getChild(ref: Reference, childPath: string): Reference {\n  const newPath = child(ref._location.path, childPath);\n  const location = new Location(ref._location.bucket, newPath);\n  return new Reference(ref.storage, location);\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { Location } from './implementation/location';\nimport { FailRequest } from './implementation/failrequest';\nimport { Request, makeRequest } from './implementation/request';\nimport { RequestInfo } from './implementation/requestinfo';\nimport { Reference, _getChild } from './reference';\nimport { Provider } from '@firebase/component';\nimport { FirebaseAuthInternalName } from '@firebase/auth-interop-types';\nimport { AppCheckInternalComponentName } from '@firebase/app-check-interop-types';\n// eslint-disable-next-line import/no-extraneous-dependencies\nimport {\n  FirebaseApp,\n  FirebaseOptions,\n  _isFirebaseServerApp\n} from '@firebase/app';\nimport {\n  CONFIG_STORAGE_BUCKET_KEY,\n  DEFAULT_HOST,\n  DEFAULT_MAX_OPERATION_RETRY_TIME,\n  DEFAULT_MAX_UPLOAD_RETRY_TIME\n} from './implementation/constants';\nimport {\n  invalidArgument,\n  appDeleted,\n  noDefaultBucket\n} from './implementation/error';\nimport { validateNumber } from './implementation/type';\nimport { FirebaseStorage } from './public-types';\nimport {\n  createMockUserToken,\n  EmulatorMockTokenOptions,\n  isCloudWorkstation,\n  pingServer,\n  updateEmulatorBanner\n} from '@firebase/util';\nimport { Connection, ConnectionType } from './implementation/connection';\n\nexport function isUrl(path?: string): boolean {\n  return /^[A-Za-z]+:\\/\\//.test(path as string);\n}\n\n/**\n * Returns a firebaseStorage.Reference for the given url.\n */\nfunction refFromURL(service: FirebaseStorageImpl, url: string): Reference {\n  return new Reference(service, url);\n}\n\n/**\n * Returns a firebaseStorage.Reference for the given path in the default\n * bucket.\n */\nfunction refFromPath(\n  ref: FirebaseStorageImpl | Reference,\n  path?: string\n): Reference {\n  if (ref instanceof FirebaseStorageImpl) {\n    const service = ref;\n    if (service._bucket == null) {\n      throw noDefaultBucket();\n    }\n    const reference = new Reference(service, service._bucket!);\n    if (path != null) {\n      return refFromPath(reference, path);\n    } else {\n      return reference;\n    }\n  } else {\n    // ref is a Reference\n    if (path !== undefined) {\n      return _getChild(ref, path);\n    } else {\n      return ref;\n    }\n  }\n}\n\n/**\n * Returns a storage Reference for the given url.\n * @param storage - `Storage` instance.\n * @param url - URL. If empty, returns root reference.\n * @public\n */\nexport function ref(storage: FirebaseStorageImpl, url?: string): Reference;\n/**\n * Returns a storage Reference for the given path in the\n * default bucket.\n * @param storageOrRef - `Storage` service or storage `Reference`.\n * @param pathOrUrlStorage - path. If empty, returns root reference (if Storage\n * instance provided) or returns same reference (if Reference provided).\n * @public\n */\nexport function ref(\n  storageOrRef: FirebaseStorageImpl | Reference,\n  path?: string\n): Reference;\nexport function ref(\n  serviceOrRef: FirebaseStorageImpl | Reference,\n  pathOrUrl?: string\n): Reference | null {\n  if (pathOrUrl && isUrl(pathOrUrl)) {\n    if (serviceOrRef instanceof FirebaseStorageImpl) {\n      return refFromURL(serviceOrRef, pathOrUrl);\n    } else {\n      throw invalidArgument(\n        'To use ref(service, url), the first argument must be a Storage instance.'\n      );\n    }\n  } else {\n    return refFromPath(serviceOrRef, pathOrUrl);\n  }\n}\n\nfunction extractBucket(\n  host: string,\n  config?: FirebaseOptions\n): Location | null {\n  const bucketString = config?.[CONFIG_STORAGE_BUCKET_KEY];\n  if (bucketString == null) {\n    return null;\n  }\n  return Location.makeFromBucketSpec(bucketString, host);\n}\n\nexport function connectStorageEmulator(\n  storage: FirebaseStorageImpl,\n  host: string,\n  port: number,\n  options: {\n    mockUserToken?: EmulatorMockTokenOptions | string;\n  } = {}\n): void {\n  storage.host = `${host}:${port}`;\n  const useSsl = isCloudWorkstation(host);\n  // Workaround to get cookies in Firebase Studio\n  if (useSsl) {\n    void pingServer(`https://${storage.host}/b`);\n    updateEmulatorBanner('Storage', true);\n  }\n  storage._isUsingEmulator = true;\n  storage._protocol = useSsl ? 'https' : 'http';\n  const { mockUserToken } = options;\n  if (mockUserToken) {\n    storage._overrideAuthToken =\n      typeof mockUserToken === 'string'\n        ? mockUserToken\n        : createMockUserToken(mockUserToken, storage.app.options.projectId);\n  }\n}\n\n/**\n * A service that provides Firebase Storage Reference instances.\n * @param opt_url - gs:// url to a custom Storage Bucket\n *\n * @internal\n */\nexport class FirebaseStorageImpl implements FirebaseStorage {\n  _bucket: Location | null = null;\n  /**\n   * This string can be in the formats:\n   * - host\n   * - host:port\n   */\n  private _host: string = DEFAULT_HOST;\n  _protocol: string = 'https';\n  protected readonly _appId: string | null = null;\n  private readonly _requests: Set<Request<unknown>>;\n  private _deleted: boolean = false;\n  private _maxOperationRetryTime: number;\n  private _maxUploadRetryTime: number;\n  _overrideAuthToken?: string;\n\n  constructor(\n    /**\n     * FirebaseApp associated with this StorageService instance.\n     */\n    readonly app: FirebaseApp,\n    readonly _authProvider: Provider<FirebaseAuthInternalName>,\n    /**\n     * @internal\n     */\n    readonly _appCheckProvider: Provider<AppCheckInternalComponentName>,\n    /**\n     * @internal\n     */\n    readonly _url?: string,\n    readonly _firebaseVersion?: string,\n    public _isUsingEmulator = false\n  ) {\n    this._maxOperationRetryTime = DEFAULT_MAX_OPERATION_RETRY_TIME;\n    this._maxUploadRetryTime = DEFAULT_MAX_UPLOAD_RETRY_TIME;\n    this._requests = new Set();\n    if (_url != null) {\n      this._bucket = Location.makeFromBucketSpec(_url, this._host);\n    } else {\n      this._bucket = extractBucket(this._host, this.app.options);\n    }\n  }\n\n  /**\n   * The host string for this service, in the form of `host` or\n   * `host:port`.\n   */\n  get host(): string {\n    return this._host;\n  }\n\n  set host(host: string) {\n    this._host = host;\n    if (this._url != null) {\n      this._bucket = Location.makeFromBucketSpec(this._url, host);\n    } else {\n      this._bucket = extractBucket(host, this.app.options);\n    }\n  }\n\n  /**\n   * The maximum time to retry uploads in milliseconds.\n   */\n  get maxUploadRetryTime(): number {\n    return this._maxUploadRetryTime;\n  }\n\n  set maxUploadRetryTime(time: number) {\n    validateNumber(\n      'time',\n      /* minValue=*/ 0,\n      /* maxValue= */ Number.POSITIVE_INFINITY,\n      time\n    );\n    this._maxUploadRetryTime = time;\n  }\n\n  /**\n   * The maximum time to retry operations other than uploads or downloads in\n   * milliseconds.\n   */\n  get maxOperationRetryTime(): number {\n    return this._maxOperationRetryTime;\n  }\n\n  set maxOperationRetryTime(time: number) {\n    validateNumber(\n      'time',\n      /* minValue=*/ 0,\n      /* maxValue= */ Number.POSITIVE_INFINITY,\n      time\n    );\n    this._maxOperationRetryTime = time;\n  }\n\n  async _getAuthToken(): Promise<string | null> {\n    if (this._overrideAuthToken) {\n      return this._overrideAuthToken;\n    }\n    const auth = this._authProvider.getImmediate({ optional: true });\n    if (auth) {\n      const tokenData = await auth.getToken();\n      if (tokenData !== null) {\n        return tokenData.accessToken;\n      }\n    }\n    return null;\n  }\n\n  async _getAppCheckToken(): Promise<string | null> {\n    if (_isFirebaseServerApp(this.app) && this.app.settings.appCheckToken) {\n      return this.app.settings.appCheckToken;\n    }\n    const appCheck = this._appCheckProvider.getImmediate({ optional: true });\n    if (appCheck) {\n      const result = await appCheck.getToken();\n      // TODO: What do we want to do if there is an error getting the token?\n      // Context: appCheck.getToken() will never throw even if an error happened. In the error case, a dummy token will be\n      // returned along with an error field describing the error. In general, we shouldn't care about the error condition and just use\n      // the token (actual or dummy) to send requests.\n      return result.token;\n    }\n    return null;\n  }\n\n  /**\n   * Stop running requests and prevent more from being created.\n   */\n  _delete(): Promise<void> {\n    if (!this._deleted) {\n      this._deleted = true;\n      this._requests.forEach(request => request.cancel());\n      this._requests.clear();\n    }\n    return Promise.resolve();\n  }\n\n  /**\n   * Returns a new firebaseStorage.Reference object referencing this StorageService\n   * at the given Location.\n   */\n  _makeStorageReference(loc: Location): Reference {\n    return new Reference(this, loc);\n  }\n\n  /**\n   * @param requestInfo - HTTP RequestInfo object\n   * @param authToken - Firebase auth token\n   */\n  _makeRequest<I extends ConnectionType, O>(\n    requestInfo: RequestInfo<I, O>,\n    requestFactory: () => Connection<I>,\n    authToken: string | null,\n    appCheckToken: string | null,\n    retry = true\n  ): Request<O> {\n    if (!this._deleted) {\n      const request = makeRequest(\n        requestInfo,\n        this._appId,\n        authToken,\n        appCheckToken,\n        requestFactory,\n        this._firebaseVersion,\n        retry,\n        this._isUsingEmulator\n      );\n      this._requests.add(request);\n      // Request removes itself from set when complete.\n      request.getPromise().then(\n        () => this._requests.delete(request),\n        () => this._requests.delete(request)\n      );\n      return request;\n    } else {\n      return new FailRequest(appDeleted());\n    }\n  }\n\n  async makeRequestWithTokens<I extends ConnectionType, O>(\n    requestInfo: RequestInfo<I, O>,\n    requestFactory: () => Connection<I>\n  ): Promise<O> {\n    const [authToken, appCheckToken] = await Promise.all([\n      this._getAuthToken(),\n      this._getAppCheckToken()\n    ]);\n\n    return this._makeRequest(\n      requestInfo,\n      requestFactory,\n      authToken,\n      appCheckToken\n    ).getPromise();\n  }\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * Type constant for Firebase Storage.\n */\nexport const STORAGE_TYPE = 'storage';\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport { _getProvider, FirebaseApp, getApp } from '@firebase/app';\n\nimport {\n  ref as refInternal,\n  FirebaseStorageImpl,\n  connectStorageEmulator as connectEmulatorInternal\n} from './service';\nimport { Provider } from '@firebase/component';\n\nimport {\n  StorageReference,\n  FirebaseStorage,\n  UploadResult,\n  ListOptions,\n  ListResult,\n  UploadTask,\n  SettableMetadata,\n  UploadMetadata,\n  FullMetadata\n} from './public-types';\nimport { Metadata as MetadataInternal } from './metadata';\nimport {\n  uploadBytes as uploadBytesInternal,\n  uploadBytesResumable as uploadBytesResumableInternal,\n  uploadString as uploadStringInternal,\n  getMetadata as getMetadataInternal,\n  updateMetadata as updateMetadataInternal,\n  list as listInternal,\n  listAll as listAllInternal,\n  getDownloadURL as getDownloadURLInternal,\n  deleteObject as deleteObjectInternal,\n  Reference,\n  _getChild as _getChildInternal,\n  getBytesInternal\n} from './reference';\nimport { STORAGE_TYPE } from './constants';\nimport {\n  EmulatorMockTokenOptions,\n  getModularInstance,\n  getDefaultEmulatorHostnameAndPort\n} from '@firebase/util';\nimport { StringFormat } from './implementation/string';\n\nexport { EmulatorMockTokenOptions } from '@firebase/util';\n\nexport { StorageError, StorageErrorCode } from './implementation/error';\n\n/**\n * Public types.\n */\nexport * from './public-types';\n\nexport { Location as _Location } from './implementation/location';\nexport { UploadTask as _UploadTask } from './task';\nexport type { Reference as _Reference } from './reference';\nexport type { FirebaseStorageImpl as _FirebaseStorageImpl } from './service';\nexport { FbsBlob as _FbsBlob } from './implementation/blob';\nexport { dataFromString as _dataFromString } from './implementation/string';\nexport {\n  invalidRootOperation as _invalidRootOperation,\n  invalidArgument as _invalidArgument\n} from './implementation/error';\nexport {\n  TaskEvent as _TaskEvent,\n  TaskState as _TaskState\n} from './implementation/taskenums';\nexport { StringFormat };\n\n/**\n * Downloads the data at the object's location. Returns an error if the object\n * is not found.\n *\n * To use this functionality, you have to whitelist your app's origin in your\n * Cloud Storage bucket. See also\n * https://cloud.google.com/storage/docs/configuring-cors\n *\n * @public\n * @param ref - StorageReference where data should be downloaded.\n * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to\n * retrieve.\n * @returns A Promise containing the object's bytes\n */\nexport function getBytes(\n  ref: StorageReference,\n  maxDownloadSizeBytes?: number\n): Promise<ArrayBuffer> {\n  ref = getModularInstance(ref);\n  return getBytesInternal(ref as Reference, maxDownloadSizeBytes);\n}\n\n/**\n * Uploads data to this object's location.\n * The upload is not resumable.\n * @public\n * @param ref - {@link StorageReference} where data should be uploaded.\n * @param data - The data to upload.\n * @param metadata - Metadata for the data to upload.\n * @returns A Promise containing an UploadResult\n */\nexport function uploadBytes(\n  ref: StorageReference,\n  data: Blob | Uint8Array | ArrayBuffer,\n  metadata?: UploadMetadata\n): Promise<UploadResult> {\n  ref = getModularInstance(ref);\n  return uploadBytesInternal(\n    ref as Reference,\n    data,\n    metadata as MetadataInternal\n  );\n}\n\n/**\n * Uploads a string to this object's location.\n * The upload is not resumable.\n * @public\n * @param ref - {@link StorageReference} where string should be uploaded.\n * @param value - The string to upload.\n * @param format - The format of the string to upload.\n * @param metadata - Metadata for the string to upload.\n * @returns A Promise containing an UploadResult\n */\nexport function uploadString(\n  ref: StorageReference,\n  value: string,\n  format?: StringFormat,\n  metadata?: UploadMetadata\n): Promise<UploadResult> {\n  ref = getModularInstance(ref);\n  return uploadStringInternal(\n    ref as Reference,\n    value,\n    format,\n    metadata as MetadataInternal\n  );\n}\n\n/**\n * Uploads data to this object's location.\n * The upload can be paused and resumed, and exposes progress updates.\n * @public\n * @param ref - {@link StorageReference} where data should be uploaded.\n * @param data - The data to upload.\n * @param metadata - Metadata for the data to upload.\n * @returns An UploadTask\n */\nexport function uploadBytesResumable(\n  ref: StorageReference,\n  data: Blob | Uint8Array | ArrayBuffer,\n  metadata?: UploadMetadata\n): UploadTask {\n  ref = getModularInstance(ref);\n  return uploadBytesResumableInternal(\n    ref as Reference,\n    data,\n    metadata as MetadataInternal\n  ) as UploadTask;\n}\n\n/**\n * A `Promise` that resolves with the metadata for this object. If this\n * object doesn't exist or metadata cannot be retrieved, the promise is\n * rejected.\n * @public\n * @param ref - {@link StorageReference} to get metadata from.\n */\nexport function getMetadata(ref: StorageReference): Promise<FullMetadata> {\n  ref = getModularInstance(ref);\n  return getMetadataInternal(ref as Reference) as Promise<FullMetadata>;\n}\n\n/**\n * Updates the metadata for this object.\n * @public\n * @param ref - {@link StorageReference} to update metadata for.\n * @param metadata - The new metadata for the object.\n *     Only values that have been explicitly set will be changed. Explicitly\n *     setting a value to null will remove the metadata.\n * @returns A `Promise` that resolves with the new metadata for this object.\n */\nexport function updateMetadata(\n  ref: StorageReference,\n  metadata: SettableMetadata\n): Promise<FullMetadata> {\n  ref = getModularInstance(ref);\n  return updateMetadataInternal(\n    ref as Reference,\n    metadata as Partial<MetadataInternal>\n  ) as Promise<FullMetadata>;\n}\n\n/**\n * List items (files) and prefixes (folders) under this storage reference.\n *\n * List API is only available for Firebase Rules Version 2.\n *\n * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'\n * delimited folder structure.\n * Refer to GCS's List API if you want to learn more.\n *\n * To adhere to Firebase Rules's Semantics, Firebase Storage does not\n * support objects whose paths end with \"/\" or contain two consecutive\n * \"/\"s. Firebase Storage List API will filter these unsupported objects.\n * list() may fail if there are too many unsupported objects in the bucket.\n * @public\n *\n * @param ref - {@link StorageReference} to get list from.\n * @param options - See {@link ListOptions} for details.\n * @returns A `Promise` that resolves with the items and prefixes.\n *      `prefixes` contains references to sub-folders and `items`\n *      contains references to objects in this folder. `nextPageToken`\n *      can be used to get the rest of the results.\n */\nexport function list(\n  ref: StorageReference,\n  options?: ListOptions\n): Promise<ListResult> {\n  ref = getModularInstance(ref);\n  return listInternal(ref as Reference, options);\n}\n\n/**\n * List all items (files) and prefixes (folders) under this storage reference.\n *\n * This is a helper method for calling list() repeatedly until there are\n * no more results. The default pagination size is 1000.\n *\n * Note: The results may not be consistent if objects are changed while this\n * operation is running.\n *\n * Warning: `listAll` may potentially consume too many resources if there are\n * too many results.\n * @public\n * @param ref - {@link StorageReference} to get list from.\n *\n * @returns A `Promise` that resolves with all the items and prefixes under\n *      the current storage reference. `prefixes` contains references to\n *      sub-directories and `items` contains references to objects in this\n *      folder. `nextPageToken` is never returned.\n */\nexport function listAll(ref: StorageReference): Promise<ListResult> {\n  ref = getModularInstance(ref);\n  return listAllInternal(ref as Reference);\n}\n\n/**\n * Returns the download URL for the given {@link StorageReference}.\n * @public\n * @param ref - {@link StorageReference} to get the download URL for.\n * @returns A `Promise` that resolves with the download\n *     URL for this object.\n */\nexport function getDownloadURL(ref: StorageReference): Promise<string> {\n  ref = getModularInstance(ref);\n  return getDownloadURLInternal(ref as Reference);\n}\n\n/**\n * Deletes the object at this location.\n * @public\n * @param ref - {@link StorageReference} for object to delete.\n * @returns A `Promise` that resolves if the deletion succeeds.\n */\nexport function deleteObject(ref: StorageReference): Promise<void> {\n  ref = getModularInstance(ref);\n  return deleteObjectInternal(ref as Reference);\n}\n\n/**\n * Returns a {@link StorageReference} for the given url.\n * @param storage - {@link FirebaseStorage} instance.\n * @param url - URL. If empty, returns root reference.\n * @public\n */\nexport function ref(storage: FirebaseStorage, url?: string): StorageReference;\n/**\n * Returns a {@link StorageReference} for the given path in the\n * default bucket.\n * @param storageOrRef - {@link FirebaseStorage} or {@link StorageReference}.\n * @param pathOrUrlStorage - path. If empty, returns root reference (if {@link FirebaseStorage}\n * instance provided) or returns same reference (if {@link StorageReference} provided).\n * @public\n */\nexport function ref(\n  storageOrRef: FirebaseStorage | StorageReference,\n  path?: string\n): StorageReference;\nexport function ref(\n  serviceOrRef: FirebaseStorage | StorageReference,\n  pathOrUrl?: string\n): StorageReference | null {\n  serviceOrRef = getModularInstance(serviceOrRef);\n  return refInternal(\n    serviceOrRef as FirebaseStorageImpl | Reference,\n    pathOrUrl\n  );\n}\n\n/**\n * @internal\n */\nexport function _getChild(ref: StorageReference, childPath: string): Reference {\n  return _getChildInternal(ref as Reference, childPath);\n}\n\n/**\n * Gets a {@link FirebaseStorage} instance for the given Firebase app.\n * @public\n * @param app - Firebase app to get {@link FirebaseStorage} instance for.\n * @param bucketUrl - The gs:// url to your Firebase Storage Bucket.\n * If not passed, uses the app's default Storage Bucket.\n * @returns A {@link FirebaseStorage} instance.\n */\nexport function getStorage(\n  app: FirebaseApp = getApp(),\n  bucketUrl?: string\n): FirebaseStorage {\n  app = getModularInstance(app);\n  const storageProvider: Provider<'storage'> = _getProvider(app, STORAGE_TYPE);\n  const storageInstance = storageProvider.getImmediate({\n    identifier: bucketUrl\n  });\n  const emulator = getDefaultEmulatorHostnameAndPort('storage');\n  if (emulator) {\n    connectStorageEmulator(storageInstance, ...emulator);\n  }\n  return storageInstance;\n}\n\n/**\n * Modify this {@link FirebaseStorage} instance to communicate with the Cloud Storage emulator.\n *\n * @param storage - The {@link FirebaseStorage} instance\n * @param host - The emulator host (ex: localhost)\n * @param port - The emulator port (ex: 5001)\n * @param options - Emulator options. `options.mockUserToken` is the mock auth\n * token to use for unit testing Security Rules.\n * @public\n */\nexport function connectStorageEmulator(\n  storage: FirebaseStorage,\n  host: string,\n  port: number,\n  options: {\n    mockUserToken?: EmulatorMockTokenOptions | string;\n  } = {}\n): void {\n  connectEmulatorInternal(storage as FirebaseStorageImpl, host, port, options);\n}\n","/**\n * @license\n * Copyright 2021 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { StorageReference } from './public-types';\nimport { Reference, getBlobInternal } from './reference';\nimport { getModularInstance } from '@firebase/util';\n\n/**\n * Downloads the data at the object's location. Returns an error if the object\n * is not found.\n *\n * To use this functionality, you have to whitelist your app's origin in your\n * Cloud Storage bucket. See also\n * https://cloud.google.com/storage/docs/configuring-cors\n *\n * This API is not available in Node.\n *\n * @public\n * @param ref - StorageReference where data should be downloaded.\n * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to\n * retrieve.\n * @returns A Promise that resolves with a Blob containing the object's bytes\n */\nexport function getBlob(\n  ref: StorageReference,\n  maxDownloadSizeBytes?: number\n): Promise<Blob> {\n  ref = getModularInstance(ref);\n  return getBlobInternal(ref as Reference, maxDownloadSizeBytes);\n}\n\n/**\n * Downloads the data at the object's location. Raises an error event if the\n * object is not found.\n *\n * This API is only available in Node.\n *\n * @public\n * @param ref - StorageReference where data should be downloaded.\n * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to\n * retrieve.\n * @returns A stream with the object's data as bytes\n */\nexport function getStream(\n  ref: StorageReference,\n  maxDownloadSizeBytes?: number\n): ReadableStream {\n  throw new Error('getStream() is only supported by NodeJS builds');\n}\n","/**\n * Cloud Storage for Firebase\n *\n * @packageDocumentation\n */\n\n/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n// eslint-disable-next-line import/no-extraneous-dependencies\nimport {\n  _registerComponent,\n  registerVersion,\n  SDK_VERSION\n} from '@firebase/app';\n\nimport { FirebaseStorageImpl } from '../src/service';\nimport {\n  Component,\n  ComponentType,\n  ComponentContainer,\n  InstanceFactoryOptions\n} from '@firebase/component';\n\nimport { name, version } from '../package.json';\n\nimport { FirebaseStorage } from './public-types';\nimport { STORAGE_TYPE } from './constants';\n\nexport * from './api';\nexport * from './api.browser';\n\nfunction factory(\n  container: ComponentContainer,\n  { instanceIdentifier: url }: InstanceFactoryOptions\n): FirebaseStorage {\n  const app = container.getProvider('app').getImmediate();\n  const authProvider = container.getProvider('auth-internal');\n  const appCheckProvider = container.getProvider('app-check-internal');\n\n  return new FirebaseStorageImpl(\n    app,\n    authProvider,\n    appCheckProvider,\n    url,\n    SDK_VERSION\n  );\n}\n\nfunction registerStorage(): void {\n  _registerComponent(\n    new Component(\n      STORAGE_TYPE,\n      factory,\n      ComponentType.PUBLIC\n    ).setMultipleInstances(true)\n  );\n  //RUNTIME_ENV will be replaced during the compilation to \"node\" for nodejs and an empty string for browser\n  registerVersion(name, version, '__RUNTIME_ENV__');\n  // BUILD_TARGET will be replaced by values like esm, cjs, etc during the compilation\n  registerVersion(name, version, 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\ No newline at end of file
diff --git a/frontend-old/node_modules/@firebase/storage/dist/index.node.cjs.js b/frontend-old/node_modules/@firebase/storage/dist/index.node.cjs.js
new file mode 100644
index 0000000..26f308c
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/index.node.cjs.js
@@ -0,0 +1,3710 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+var app = require('@firebase/app');
+var util = require('@firebase/util');
+var component = require('@firebase/component');
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Constants used in the Firebase Storage library.
+ */
+/**
+ * Domain name for firebase storage.
+ */
+const DEFAULT_HOST = 'firebasestorage.googleapis.com';
+/**
+ * The key in Firebase config json for the storage bucket.
+ */
+const CONFIG_STORAGE_BUCKET_KEY = 'storageBucket';
+/**
+ * 2 minutes
+ *
+ * The timeout for all operations except upload.
+ */
+const DEFAULT_MAX_OPERATION_RETRY_TIME = 2 * 60 * 1000;
+/**
+ * 10 minutes
+ *
+ * The timeout for upload.
+ */
+const DEFAULT_MAX_UPLOAD_RETRY_TIME = 10 * 60 * 1000;
+/**
+ * 1 second
+ */
+const DEFAULT_MIN_SLEEP_TIME_MILLIS = 1000;
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * An error returned by the Firebase Storage SDK.
+ * @public
+ */
+class StorageError extends util.FirebaseError {
+    /**
+     * @param code - A `StorageErrorCode` string to be prefixed with 'storage/' and
+     *  added to the end of the message.
+     * @param message  - Error message.
+     * @param status_ - Corresponding HTTP Status Code
+     */
+    constructor(code, message, status_ = 0) {
+        super(prependCode(code), `Firebase Storage: ${message} (${prependCode(code)})`);
+        this.status_ = status_;
+        /**
+         * Stores custom error data unique to the `StorageError`.
+         */
+        this.customData = { serverResponse: null };
+        this._baseMessage = this.message;
+        // Without this, `instanceof StorageError`, in tests for example,
+        // returns false.
+        Object.setPrototypeOf(this, StorageError.prototype);
+    }
+    get status() {
+        return this.status_;
+    }
+    set status(status) {
+        this.status_ = status;
+    }
+    /**
+     * Compares a `StorageErrorCode` against this error's code, filtering out the prefix.
+     */
+    _codeEquals(code) {
+        return prependCode(code) === this.code;
+    }
+    /**
+     * Optional response message that was added by the server.
+     */
+    get serverResponse() {
+        return this.customData.serverResponse;
+    }
+    set serverResponse(serverResponse) {
+        this.customData.serverResponse = serverResponse;
+        if (this.customData.serverResponse) {
+            this.message = `${this._baseMessage}\n${this.customData.serverResponse}`;
+        }
+        else {
+            this.message = this._baseMessage;
+        }
+    }
+}
+/**
+ * @public
+ * Error codes that can be attached to `StorageError` objects.
+ */
+exports.StorageErrorCode = void 0;
+(function (StorageErrorCode) {
+    // Shared between all platforms
+    StorageErrorCode["UNKNOWN"] = "unknown";
+    StorageErrorCode["OBJECT_NOT_FOUND"] = "object-not-found";
+    StorageErrorCode["BUCKET_NOT_FOUND"] = "bucket-not-found";
+    StorageErrorCode["PROJECT_NOT_FOUND"] = "project-not-found";
+    StorageErrorCode["QUOTA_EXCEEDED"] = "quota-exceeded";
+    StorageErrorCode["UNAUTHENTICATED"] = "unauthenticated";
+    StorageErrorCode["UNAUTHORIZED"] = "unauthorized";
+    StorageErrorCode["UNAUTHORIZED_APP"] = "unauthorized-app";
+    StorageErrorCode["RETRY_LIMIT_EXCEEDED"] = "retry-limit-exceeded";
+    StorageErrorCode["INVALID_CHECKSUM"] = "invalid-checksum";
+    StorageErrorCode["CANCELED"] = "canceled";
+    // JS specific
+    StorageErrorCode["INVALID_EVENT_NAME"] = "invalid-event-name";
+    StorageErrorCode["INVALID_URL"] = "invalid-url";
+    StorageErrorCode["INVALID_DEFAULT_BUCKET"] = "invalid-default-bucket";
+    StorageErrorCode["NO_DEFAULT_BUCKET"] = "no-default-bucket";
+    StorageErrorCode["CANNOT_SLICE_BLOB"] = "cannot-slice-blob";
+    StorageErrorCode["SERVER_FILE_WRONG_SIZE"] = "server-file-wrong-size";
+    StorageErrorCode["NO_DOWNLOAD_URL"] = "no-download-url";
+    StorageErrorCode["INVALID_ARGUMENT"] = "invalid-argument";
+    StorageErrorCode["INVALID_ARGUMENT_COUNT"] = "invalid-argument-count";
+    StorageErrorCode["APP_DELETED"] = "app-deleted";
+    StorageErrorCode["INVALID_ROOT_OPERATION"] = "invalid-root-operation";
+    StorageErrorCode["INVALID_FORMAT"] = "invalid-format";
+    StorageErrorCode["INTERNAL_ERROR"] = "internal-error";
+    StorageErrorCode["UNSUPPORTED_ENVIRONMENT"] = "unsupported-environment";
+})(exports.StorageErrorCode || (exports.StorageErrorCode = {}));
+function prependCode(code) {
+    return 'storage/' + code;
+}
+function unknown() {
+    const message = 'An unknown error occurred, please check the error payload for ' +
+        'server response.';
+    return new StorageError(exports.StorageErrorCode.UNKNOWN, message);
+}
+function objectNotFound(path) {
+    return new StorageError(exports.StorageErrorCode.OBJECT_NOT_FOUND, "Object '" + path + "' does not exist.");
+}
+function quotaExceeded(bucket) {
+    return new StorageError(exports.StorageErrorCode.QUOTA_EXCEEDED, "Quota for bucket '" +
+        bucket +
+        "' exceeded, please view quota on " +
+        'https://firebase.google.com/pricing/.');
+}
+function unauthenticated() {
+    const message = 'User is not authenticated, please authenticate using Firebase ' +
+        'Authentication and try again.';
+    return new StorageError(exports.StorageErrorCode.UNAUTHENTICATED, message);
+}
+function unauthorizedApp() {
+    return new StorageError(exports.StorageErrorCode.UNAUTHORIZED_APP, 'This app does not have permission to access Firebase Storage on this project.');
+}
+function unauthorized(path) {
+    return new StorageError(exports.StorageErrorCode.UNAUTHORIZED, "User does not have permission to access '" + path + "'.");
+}
+function retryLimitExceeded() {
+    return new StorageError(exports.StorageErrorCode.RETRY_LIMIT_EXCEEDED, 'Max retry time for operation exceeded, please try again.');
+}
+function canceled() {
+    return new StorageError(exports.StorageErrorCode.CANCELED, 'User canceled the upload/download.');
+}
+function invalidUrl(url) {
+    return new StorageError(exports.StorageErrorCode.INVALID_URL, "Invalid URL '" + url + "'.");
+}
+function invalidDefaultBucket(bucket) {
+    return new StorageError(exports.StorageErrorCode.INVALID_DEFAULT_BUCKET, "Invalid default bucket '" + bucket + "'.");
+}
+function noDefaultBucket() {
+    return new StorageError(exports.StorageErrorCode.NO_DEFAULT_BUCKET, 'No default bucket ' +
+        "found. Did you set the '" +
+        CONFIG_STORAGE_BUCKET_KEY +
+        "' property when initializing the app?");
+}
+function cannotSliceBlob() {
+    return new StorageError(exports.StorageErrorCode.CANNOT_SLICE_BLOB, 'Cannot slice blob for upload. Please retry the upload.');
+}
+function serverFileWrongSize() {
+    return new StorageError(exports.StorageErrorCode.SERVER_FILE_WRONG_SIZE, 'Server recorded incorrect upload file size, please retry the upload.');
+}
+function noDownloadURL() {
+    return new StorageError(exports.StorageErrorCode.NO_DOWNLOAD_URL, 'The given file does not have any download URLs.');
+}
+/**
+ * @internal
+ */
+function invalidArgument(message) {
+    return new StorageError(exports.StorageErrorCode.INVALID_ARGUMENT, message);
+}
+function appDeleted() {
+    return new StorageError(exports.StorageErrorCode.APP_DELETED, 'The Firebase app was deleted.');
+}
+/**
+ * @param name - The name of the operation that was invalid.
+ *
+ * @internal
+ */
+function invalidRootOperation(name) {
+    return new StorageError(exports.StorageErrorCode.INVALID_ROOT_OPERATION, "The operation '" +
+        name +
+        "' cannot be performed on a root reference, create a non-root " +
+        "reference using child, such as .child('file.png').");
+}
+/**
+ * @param format - The format that was not valid.
+ * @param message - A message describing the format violation.
+ */
+function invalidFormat(format, message) {
+    return new StorageError(exports.StorageErrorCode.INVALID_FORMAT, "String does not match format '" + format + "': " + message);
+}
+/**
+ * @param message - A message describing the internal error.
+ */
+function internalError(message) {
+    throw new StorageError(exports.StorageErrorCode.INTERNAL_ERROR, 'Internal error: ' + message);
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Firebase Storage location data.
+ *
+ * @internal
+ */
+class Location {
+    constructor(bucket, path) {
+        this.bucket = bucket;
+        this.path_ = path;
+    }
+    get path() {
+        return this.path_;
+    }
+    get isRoot() {
+        return this.path.length === 0;
+    }
+    fullServerUrl() {
+        const encode = encodeURIComponent;
+        return '/b/' + encode(this.bucket) + '/o/' + encode(this.path);
+    }
+    bucketOnlyServerUrl() {
+        const encode = encodeURIComponent;
+        return '/b/' + encode(this.bucket) + '/o';
+    }
+    static makeFromBucketSpec(bucketString, host) {
+        let bucketLocation;
+        try {
+            bucketLocation = Location.makeFromUrl(bucketString, host);
+        }
+        catch (e) {
+            // Not valid URL, use as-is. This lets you put bare bucket names in
+            // config.
+            return new Location(bucketString, '');
+        }
+        if (bucketLocation.path === '') {
+            return bucketLocation;
+        }
+        else {
+            throw invalidDefaultBucket(bucketString);
+        }
+    }
+    static makeFromUrl(url, host) {
+        let location = null;
+        const bucketDomain = '([A-Za-z0-9.\\-_]+)';
+        function gsModify(loc) {
+            if (loc.path.charAt(loc.path.length - 1) === '/') {
+                loc.path_ = loc.path_.slice(0, -1);
+            }
+        }
+        const gsPath = '(/(.*))?$';
+        const gsRegex = new RegExp('^gs://' + bucketDomain + gsPath, 'i');
+        const gsIndices = { bucket: 1, path: 3 };
+        function httpModify(loc) {
+            loc.path_ = decodeURIComponent(loc.path);
+        }
+        const version = 'v[A-Za-z0-9_]+';
+        const firebaseStorageHost = host.replace(/[.]/g, '\\.');
+        const firebaseStoragePath = '(/([^?#]*).*)?$';
+        const firebaseStorageRegExp = new RegExp(`^https?://${firebaseStorageHost}/${version}/b/${bucketDomain}/o${firebaseStoragePath}`, 'i');
+        const firebaseStorageIndices = { bucket: 1, path: 3 };
+        const cloudStorageHost = host === DEFAULT_HOST
+            ? '(?:storage.googleapis.com|storage.cloud.google.com)'
+            : host;
+        const cloudStoragePath = '([^?#]*)';
+        const cloudStorageRegExp = new RegExp(`^https?://${cloudStorageHost}/${bucketDomain}/${cloudStoragePath}`, 'i');
+        const cloudStorageIndices = { bucket: 1, path: 2 };
+        const groups = [
+            { regex: gsRegex, indices: gsIndices, postModify: gsModify },
+            {
+                regex: firebaseStorageRegExp,
+                indices: firebaseStorageIndices,
+                postModify: httpModify
+            },
+            {
+                regex: cloudStorageRegExp,
+                indices: cloudStorageIndices,
+                postModify: httpModify
+            }
+        ];
+        for (let i = 0; i < groups.length; i++) {
+            const group = groups[i];
+            const captures = group.regex.exec(url);
+            if (captures) {
+                const bucketValue = captures[group.indices.bucket];
+                let pathValue = captures[group.indices.path];
+                if (!pathValue) {
+                    pathValue = '';
+                }
+                location = new Location(bucketValue, pathValue);
+                group.postModify(location);
+                break;
+            }
+        }
+        if (location == null) {
+            throw invalidUrl(url);
+        }
+        return location;
+    }
+}
+
+/**
+ * A request whose promise always fails.
+ */
+class FailRequest {
+    constructor(error) {
+        this.promise_ = Promise.reject(error);
+    }
+    /** @inheritDoc */
+    getPromise() {
+        return this.promise_;
+    }
+    /** @inheritDoc */
+    cancel(_appDelete = false) { }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Accepts a callback for an action to perform (`doRequest`),
+ * and then a callback for when the backoff has completed (`backoffCompleteCb`).
+ * The callback sent to start requires an argument to call (`onRequestComplete`).
+ * When `start` calls `doRequest`, it passes a callback for when the request has
+ * completed, `onRequestComplete`. Based on this, the backoff continues, with
+ * another call to `doRequest` and the above loop continues until the timeout
+ * is hit, or a successful response occurs.
+ * @description
+ * @param doRequest Callback to perform request
+ * @param backoffCompleteCb Callback to call when backoff has been completed
+ */
+function start(doRequest, 
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+backoffCompleteCb, timeout) {
+    // TODO(andysoto): make this code cleaner (probably refactor into an actual
+    // type instead of a bunch of functions with state shared in the closure)
+    let waitSeconds = 1;
+    // Would type this as "number" but that doesn't work for Node so ¯\_(ツ)_/¯
+    // TODO: find a way to exclude Node type definition for storage because storage only works in browser
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    let retryTimeoutId = null;
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    let globalTimeoutId = null;
+    let hitTimeout = false;
+    let cancelState = 0;
+    function canceled() {
+        return cancelState === 2;
+    }
+    let triggeredCallback = false;
+    function triggerCallback(...args) {
+        if (!triggeredCallback) {
+            triggeredCallback = true;
+            backoffCompleteCb.apply(null, args);
+        }
+    }
+    function callWithDelay(millis) {
+        retryTimeoutId = setTimeout(() => {
+            retryTimeoutId = null;
+            doRequest(responseHandler, canceled());
+        }, millis);
+    }
+    function clearGlobalTimeout() {
+        if (globalTimeoutId) {
+            clearTimeout(globalTimeoutId);
+        }
+    }
+    function responseHandler(success, ...args) {
+        if (triggeredCallback) {
+            clearGlobalTimeout();
+            return;
+        }
+        if (success) {
+            clearGlobalTimeout();
+            triggerCallback.call(null, success, ...args);
+            return;
+        }
+        const mustStop = canceled() || hitTimeout;
+        if (mustStop) {
+            clearGlobalTimeout();
+            triggerCallback.call(null, success, ...args);
+            return;
+        }
+        if (waitSeconds < 64) {
+            /* TODO(andysoto): don't back off so quickly if we know we're offline. */
+            waitSeconds *= 2;
+        }
+        let waitMillis;
+        if (cancelState === 1) {
+            cancelState = 2;
+            waitMillis = 0;
+        }
+        else {
+            waitMillis = (waitSeconds + Math.random()) * 1000;
+        }
+        callWithDelay(waitMillis);
+    }
+    let stopped = false;
+    function stop(wasTimeout) {
+        if (stopped) {
+            return;
+        }
+        stopped = true;
+        clearGlobalTimeout();
+        if (triggeredCallback) {
+            return;
+        }
+        if (retryTimeoutId !== null) {
+            if (!wasTimeout) {
+                cancelState = 2;
+            }
+            clearTimeout(retryTimeoutId);
+            callWithDelay(0);
+        }
+        else {
+            if (!wasTimeout) {
+                cancelState = 1;
+            }
+        }
+    }
+    callWithDelay(0);
+    globalTimeoutId = setTimeout(() => {
+        hitTimeout = true;
+        stop(true);
+    }, timeout);
+    return stop;
+}
+/**
+ * Stops the retry loop from repeating.
+ * If the function is currently "in between" retries, it is invoked immediately
+ * with the second parameter as "true". Otherwise, it will be invoked once more
+ * after the current invocation finishes iff the current invocation would have
+ * triggered another retry.
+ */
+function stop(id) {
+    id(false);
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+function isJustDef(p) {
+    return p !== void 0;
+}
+// eslint-disable-next-line @typescript-eslint/ban-types
+function isFunction(p) {
+    return typeof p === 'function';
+}
+function isNonArrayObject(p) {
+    return typeof p === 'object' && !Array.isArray(p);
+}
+function isString(p) {
+    return typeof p === 'string' || p instanceof String;
+}
+function isNativeBlob(p) {
+    return isNativeBlobDefined() && p instanceof Blob;
+}
+function isNativeBlobDefined() {
+    return typeof Blob !== 'undefined';
+}
+function validateNumber(argument, minValue, maxValue, value) {
+    if (value < minValue) {
+        throw invalidArgument(`Invalid value for '${argument}'. Expected ${minValue} or greater.`);
+    }
+    if (value > maxValue) {
+        throw invalidArgument(`Invalid value for '${argument}'. Expected ${maxValue} or less.`);
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+function makeUrl(urlPart, host, protocol) {
+    let origin = host;
+    if (protocol == null) {
+        origin = `https://${host}`;
+    }
+    return `${protocol}://${origin}/v0${urlPart}`;
+}
+function makeQueryString(params) {
+    const encode = encodeURIComponent;
+    let queryPart = '?';
+    for (const key in params) {
+        if (params.hasOwnProperty(key)) {
+            const nextPart = encode(key) + '=' + encode(params[key]);
+            queryPart = queryPart + nextPart + '&';
+        }
+    }
+    // Chop off the extra '&' or '?' on the end
+    queryPart = queryPart.slice(0, -1);
+    return queryPart;
+}
+
+/**
+ * Error codes for requests made by the XhrIo wrapper.
+ */
+var ErrorCode;
+(function (ErrorCode) {
+    ErrorCode[ErrorCode["NO_ERROR"] = 0] = "NO_ERROR";
+    ErrorCode[ErrorCode["NETWORK_ERROR"] = 1] = "NETWORK_ERROR";
+    ErrorCode[ErrorCode["ABORT"] = 2] = "ABORT";
+})(ErrorCode || (ErrorCode = {}));
+
+/**
+ * @license
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Checks the status code to see if the action should be retried.
+ *
+ * @param status Current HTTP status code returned by server.
+ * @param additionalRetryCodes additional retry codes to check against
+ */
+function isRetryStatusCode(status, additionalRetryCodes) {
+    // The codes for which to retry came from this page:
+    // https://cloud.google.com/storage/docs/exponential-backoff
+    const isFiveHundredCode = status >= 500 && status < 600;
+    const extraRetryCodes = [
+        // Request Timeout: web server didn't receive full request in time.
+        408,
+        // Too Many Requests: you're getting rate-limited, basically.
+        429
+    ];
+    const isExtraRetryCode = extraRetryCodes.indexOf(status) !== -1;
+    const isAdditionalRetryCode = additionalRetryCodes.indexOf(status) !== -1;
+    return isFiveHundredCode || isExtraRetryCode || isAdditionalRetryCode;
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Handles network logic for all Storage Requests, including error reporting and
+ * retries with backoff.
+ *
+ * @param I - the type of the backend's network response.
+ * @param - O the output type used by the rest of the SDK. The conversion
+ * happens in the specified `callback_`.
+ */
+class NetworkRequest {
+    constructor(url_, method_, headers_, body_, successCodes_, additionalRetryCodes_, callback_, errorCallback_, timeout_, progressCallback_, connectionFactory_, retry = true, isUsingEmulator = false) {
+        this.url_ = url_;
+        this.method_ = method_;
+        this.headers_ = headers_;
+        this.body_ = body_;
+        this.successCodes_ = successCodes_;
+        this.additionalRetryCodes_ = additionalRetryCodes_;
+        this.callback_ = callback_;
+        this.errorCallback_ = errorCallback_;
+        this.timeout_ = timeout_;
+        this.progressCallback_ = progressCallback_;
+        this.connectionFactory_ = connectionFactory_;
+        this.retry = retry;
+        this.isUsingEmulator = isUsingEmulator;
+        this.pendingConnection_ = null;
+        this.backoffId_ = null;
+        this.canceled_ = false;
+        this.appDelete_ = false;
+        this.promise_ = new Promise((resolve, reject) => {
+            this.resolve_ = resolve;
+            this.reject_ = reject;
+            this.start_();
+        });
+    }
+    /**
+     * Actually starts the retry loop.
+     */
+    start_() {
+        const doTheRequest = (backoffCallback, canceled) => {
+            if (canceled) {
+                backoffCallback(false, new RequestEndStatus(false, null, true));
+                return;
+            }
+            const connection = this.connectionFactory_();
+            this.pendingConnection_ = connection;
+            const progressListener = progressEvent => {
+                const loaded = progressEvent.loaded;
+                const total = progressEvent.lengthComputable ? progressEvent.total : -1;
+                if (this.progressCallback_ !== null) {
+                    this.progressCallback_(loaded, total);
+                }
+            };
+            if (this.progressCallback_ !== null) {
+                connection.addUploadProgressListener(progressListener);
+            }
+            // connection.send() never rejects, so we don't need to have a error handler or use catch on the returned promise.
+            // eslint-disable-next-line @typescript-eslint/no-floating-promises
+            connection
+                .send(this.url_, this.method_, this.isUsingEmulator, this.body_, this.headers_)
+                .then(() => {
+                if (this.progressCallback_ !== null) {
+                    connection.removeUploadProgressListener(progressListener);
+                }
+                this.pendingConnection_ = null;
+                const hitServer = connection.getErrorCode() === ErrorCode.NO_ERROR;
+                const status = connection.getStatus();
+                if (!hitServer ||
+                    (isRetryStatusCode(status, this.additionalRetryCodes_) &&
+                        this.retry)) {
+                    const wasCanceled = connection.getErrorCode() === ErrorCode.ABORT;
+                    backoffCallback(false, new RequestEndStatus(false, null, wasCanceled));
+                    return;
+                }
+                const successCode = this.successCodes_.indexOf(status) !== -1;
+                backoffCallback(true, new RequestEndStatus(successCode, connection));
+            });
+        };
+        /**
+         * @param requestWentThrough - True if the request eventually went
+         *     through, false if it hit the retry limit or was canceled.
+         */
+        const backoffDone = (requestWentThrough, status) => {
+            const resolve = this.resolve_;
+            const reject = this.reject_;
+            const connection = status.connection;
+            if (status.wasSuccessCode) {
+                try {
+                    const result = this.callback_(connection, connection.getResponse());
+                    if (isJustDef(result)) {
+                        resolve(result);
+                    }
+                    else {
+                        resolve();
+                    }
+                }
+                catch (e) {
+                    reject(e);
+                }
+            }
+            else {
+                if (connection !== null) {
+                    const err = unknown();
+                    err.serverResponse = connection.getErrorText();
+                    if (this.errorCallback_) {
+                        reject(this.errorCallback_(connection, err));
+                    }
+                    else {
+                        reject(err);
+                    }
+                }
+                else {
+                    if (status.canceled) {
+                        const err = this.appDelete_ ? appDeleted() : canceled();
+                        reject(err);
+                    }
+                    else {
+                        const err = retryLimitExceeded();
+                        reject(err);
+                    }
+                }
+            }
+        };
+        if (this.canceled_) {
+            backoffDone(false, new RequestEndStatus(false, null, true));
+        }
+        else {
+            this.backoffId_ = start(doTheRequest, backoffDone, this.timeout_);
+        }
+    }
+    /** @inheritDoc */
+    getPromise() {
+        return this.promise_;
+    }
+    /** @inheritDoc */
+    cancel(appDelete) {
+        this.canceled_ = true;
+        this.appDelete_ = appDelete || false;
+        if (this.backoffId_ !== null) {
+            stop(this.backoffId_);
+        }
+        if (this.pendingConnection_ !== null) {
+            this.pendingConnection_.abort();
+        }
+    }
+}
+/**
+ * A collection of information about the result of a network request.
+ * @param opt_canceled - Defaults to false.
+ */
+class RequestEndStatus {
+    constructor(wasSuccessCode, connection, canceled) {
+        this.wasSuccessCode = wasSuccessCode;
+        this.connection = connection;
+        this.canceled = !!canceled;
+    }
+}
+function addAuthHeader_(headers, authToken) {
+    if (authToken !== null && authToken.length > 0) {
+        headers['Authorization'] = 'Firebase ' + authToken;
+    }
+}
+function addVersionHeader_(headers, firebaseVersion) {
+    headers['X-Firebase-Storage-Version'] =
+        'webjs/' + (firebaseVersion ?? 'AppManager');
+}
+function addGmpidHeader_(headers, appId) {
+    if (appId) {
+        headers['X-Firebase-GMPID'] = appId;
+    }
+}
+function addAppCheckHeader_(headers, appCheckToken) {
+    if (appCheckToken !== null) {
+        headers['X-Firebase-AppCheck'] = appCheckToken;
+    }
+}
+function makeRequest(requestInfo, appId, authToken, appCheckToken, requestFactory, firebaseVersion, retry = true, isUsingEmulator = false) {
+    const queryPart = makeQueryString(requestInfo.urlParams);
+    const url = requestInfo.url + queryPart;
+    const headers = Object.assign({}, requestInfo.headers);
+    addGmpidHeader_(headers, appId);
+    addAuthHeader_(headers, authToken);
+    addVersionHeader_(headers, firebaseVersion);
+    addAppCheckHeader_(headers, appCheckToken);
+    return new NetworkRequest(url, requestInfo.method, headers, requestInfo.body, requestInfo.successCodes, requestInfo.additionalRetryCodes, requestInfo.handler, requestInfo.errorHandler, requestInfo.timeout, requestInfo.progressCallback, requestFactory, retry, isUsingEmulator);
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+function getBlobBuilder() {
+    if (typeof BlobBuilder !== 'undefined') {
+        return BlobBuilder;
+    }
+    else if (typeof WebKitBlobBuilder !== 'undefined') {
+        return WebKitBlobBuilder;
+    }
+    else {
+        return undefined;
+    }
+}
+/**
+ * Concatenates one or more values together and converts them to a Blob.
+ *
+ * @param args The values that will make up the resulting blob.
+ * @return The blob.
+ */
+function getBlob$1(...args) {
+    const BlobBuilder = getBlobBuilder();
+    if (BlobBuilder !== undefined) {
+        const bb = new BlobBuilder();
+        for (let i = 0; i < args.length; i++) {
+            bb.append(args[i]);
+        }
+        return bb.getBlob();
+    }
+    else {
+        if (isNativeBlobDefined()) {
+            return new Blob(args);
+        }
+        else {
+            throw new StorageError(exports.StorageErrorCode.UNSUPPORTED_ENVIRONMENT, "This browser doesn't seem to support creating Blobs");
+        }
+    }
+}
+/**
+ * Slices the blob. The returned blob contains data from the start byte
+ * (inclusive) till the end byte (exclusive). Negative indices cannot be used.
+ *
+ * @param blob The blob to be sliced.
+ * @param start Index of the starting byte.
+ * @param end Index of the ending byte.
+ * @return The blob slice or null if not supported.
+ */
+function sliceBlob(blob, start, end) {
+    if (blob.webkitSlice) {
+        return blob.webkitSlice(start, end);
+    }
+    else if (blob.mozSlice) {
+        return blob.mozSlice(start, end);
+    }
+    else if (blob.slice) {
+        return blob.slice(start, end);
+    }
+    return null;
+}
+
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/** Converts a Base64 encoded string to a binary string. */
+function decodeBase64(encoded) {
+    // Node actually doesn't validate base64 strings.
+    // A quick sanity check that is not a fool-proof validation
+    if (/[^-A-Za-z0-9+/=]/.test(encoded)) {
+        throw invalidFormat('base64', 'Invalid character found');
+    }
+    return Buffer.from(encoded, 'base64').toString('binary');
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * An enumeration of the possible string formats for upload.
+ * @public
+ */
+const StringFormat = {
+    /**
+     * Indicates the string should be interpreted "raw", that is, as normal text.
+     * The string will be interpreted as UTF-16, then uploaded as a UTF-8 byte
+     * sequence.
+     * Example: The string 'Hello! \\ud83d\\ude0a' becomes the byte sequence
+     * 48 65 6c 6c 6f 21 20 f0 9f 98 8a
+     */
+    RAW: 'raw',
+    /**
+     * Indicates the string should be interpreted as base64-encoded data.
+     * Padding characters (trailing '='s) are optional.
+     * Example: The string 'rWmO++E6t7/rlw==' becomes the byte sequence
+     * ad 69 8e fb e1 3a b7 bf eb 97
+     */
+    BASE64: 'base64',
+    /**
+     * Indicates the string should be interpreted as base64url-encoded data.
+     * Padding characters (trailing '='s) are optional.
+     * Example: The string 'rWmO--E6t7_rlw==' becomes the byte sequence
+     * ad 69 8e fb e1 3a b7 bf eb 97
+     */
+    BASE64URL: 'base64url',
+    /**
+     * Indicates the string is a data URL, such as one obtained from
+     * canvas.toDataURL().
+     * Example: the string 'data:application/octet-stream;base64,aaaa'
+     * becomes the byte sequence
+     * 69 a6 9a
+     * (the content-type "application/octet-stream" is also applied, but can
+     * be overridden in the metadata object).
+     */
+    DATA_URL: 'data_url'
+};
+class StringData {
+    constructor(data, contentType) {
+        this.data = data;
+        this.contentType = contentType || null;
+    }
+}
+/**
+ * @internal
+ */
+function dataFromString(format, stringData) {
+    switch (format) {
+        case StringFormat.RAW:
+            return new StringData(utf8Bytes_(stringData));
+        case StringFormat.BASE64:
+        case StringFormat.BASE64URL:
+            return new StringData(base64Bytes_(format, stringData));
+        case StringFormat.DATA_URL:
+            return new StringData(dataURLBytes_(stringData), dataURLContentType_(stringData));
+        // do nothing
+    }
+    // assert(false);
+    throw unknown();
+}
+function utf8Bytes_(value) {
+    const b = [];
+    for (let i = 0; i < value.length; i++) {
+        let c = value.charCodeAt(i);
+        if (c <= 127) {
+            b.push(c);
+        }
+        else {
+            if (c <= 2047) {
+                b.push(192 | (c >> 6), 128 | (c & 63));
+            }
+            else {
+                if ((c & 64512) === 55296) {
+                    // The start of a surrogate pair.
+                    const valid = i < value.length - 1 && (value.charCodeAt(i + 1) & 64512) === 56320;
+                    if (!valid) {
+                        // The second surrogate wasn't there.
+                        b.push(239, 191, 189);
+                    }
+                    else {
+                        const hi = c;
+                        const lo = value.charCodeAt(++i);
+                        c = 65536 | ((hi & 1023) << 10) | (lo & 1023);
+                        b.push(240 | (c >> 18), 128 | ((c >> 12) & 63), 128 | ((c >> 6) & 63), 128 | (c & 63));
+                    }
+                }
+                else {
+                    if ((c & 64512) === 56320) {
+                        // Invalid low surrogate.
+                        b.push(239, 191, 189);
+                    }
+                    else {
+                        b.push(224 | (c >> 12), 128 | ((c >> 6) & 63), 128 | (c & 63));
+                    }
+                }
+            }
+        }
+    }
+    return new Uint8Array(b);
+}
+function percentEncodedBytes_(value) {
+    let decoded;
+    try {
+        decoded = decodeURIComponent(value);
+    }
+    catch (e) {
+        throw invalidFormat(StringFormat.DATA_URL, 'Malformed data URL.');
+    }
+    return utf8Bytes_(decoded);
+}
+function base64Bytes_(format, value) {
+    switch (format) {
+        case StringFormat.BASE64: {
+            const hasMinus = value.indexOf('-') !== -1;
+            const hasUnder = value.indexOf('_') !== -1;
+            if (hasMinus || hasUnder) {
+                const invalidChar = hasMinus ? '-' : '_';
+                throw invalidFormat(format, "Invalid character '" +
+                    invalidChar +
+                    "' found: is it base64url encoded?");
+            }
+            break;
+        }
+        case StringFormat.BASE64URL: {
+            const hasPlus = value.indexOf('+') !== -1;
+            const hasSlash = value.indexOf('/') !== -1;
+            if (hasPlus || hasSlash) {
+                const invalidChar = hasPlus ? '+' : '/';
+                throw invalidFormat(format, "Invalid character '" + invalidChar + "' found: is it base64 encoded?");
+            }
+            value = value.replace(/-/g, '+').replace(/_/g, '/');
+            break;
+        }
+        // do nothing
+    }
+    let bytes;
+    try {
+        bytes = decodeBase64(value);
+    }
+    catch (e) {
+        if (e.message.includes('polyfill')) {
+            throw e;
+        }
+        throw invalidFormat(format, 'Invalid character found');
+    }
+    const array = new Uint8Array(bytes.length);
+    for (let i = 0; i < bytes.length; i++) {
+        array[i] = bytes.charCodeAt(i);
+    }
+    return array;
+}
+class DataURLParts {
+    constructor(dataURL) {
+        this.base64 = false;
+        this.contentType = null;
+        const matches = dataURL.match(/^data:([^,]+)?,/);
+        if (matches === null) {
+            throw invalidFormat(StringFormat.DATA_URL, "Must be formatted 'data:[<mediatype>][;base64],<data>");
+        }
+        const middle = matches[1] || null;
+        if (middle != null) {
+            this.base64 = endsWith(middle, ';base64');
+            this.contentType = this.base64
+                ? middle.substring(0, middle.length - ';base64'.length)
+                : middle;
+        }
+        this.rest = dataURL.substring(dataURL.indexOf(',') + 1);
+    }
+}
+function dataURLBytes_(dataUrl) {
+    const parts = new DataURLParts(dataUrl);
+    if (parts.base64) {
+        return base64Bytes_(StringFormat.BASE64, parts.rest);
+    }
+    else {
+        return percentEncodedBytes_(parts.rest);
+    }
+}
+function dataURLContentType_(dataUrl) {
+    const parts = new DataURLParts(dataUrl);
+    return parts.contentType;
+}
+function endsWith(s, end) {
+    const longEnough = s.length >= end.length;
+    if (!longEnough) {
+        return false;
+    }
+    return s.substring(s.length - end.length) === end;
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @param opt_elideCopy - If true, doesn't copy mutable input data
+ *     (e.g. Uint8Arrays). Pass true only if you know the objects will not be
+ *     modified after this blob's construction.
+ *
+ * @internal
+ */
+class FbsBlob {
+    constructor(data, elideCopy) {
+        let size = 0;
+        let blobType = '';
+        if (isNativeBlob(data)) {
+            this.data_ = data;
+            size = data.size;
+            blobType = data.type;
+        }
+        else if (data instanceof ArrayBuffer) {
+            if (elideCopy) {
+                this.data_ = new Uint8Array(data);
+            }
+            else {
+                this.data_ = new Uint8Array(data.byteLength);
+                this.data_.set(new Uint8Array(data));
+            }
+            size = this.data_.length;
+        }
+        else if (data instanceof Uint8Array) {
+            if (elideCopy) {
+                this.data_ = data;
+            }
+            else {
+                this.data_ = new Uint8Array(data.length);
+                this.data_.set(data);
+            }
+            size = data.length;
+        }
+        this.size_ = size;
+        this.type_ = blobType;
+    }
+    size() {
+        return this.size_;
+    }
+    type() {
+        return this.type_;
+    }
+    slice(startByte, endByte) {
+        if (isNativeBlob(this.data_)) {
+            const realBlob = this.data_;
+            const sliced = sliceBlob(realBlob, startByte, endByte);
+            if (sliced === null) {
+                return null;
+            }
+            return new FbsBlob(sliced);
+        }
+        else {
+            const slice = new Uint8Array(this.data_.buffer, startByte, endByte - startByte);
+            return new FbsBlob(slice, true);
+        }
+    }
+    static getBlob(...args) {
+        if (isNativeBlobDefined()) {
+            const blobby = args.map((val) => {
+                if (val instanceof FbsBlob) {
+                    return val.data_;
+                }
+                else {
+                    return val;
+                }
+            });
+            return new FbsBlob(getBlob$1.apply(null, blobby));
+        }
+        else {
+            const uint8Arrays = args.map((val) => {
+                if (isString(val)) {
+                    return dataFromString(StringFormat.RAW, val).data;
+                }
+                else {
+                    // Blobs don't exist, so this has to be a Uint8Array.
+                    return val.data_;
+                }
+            });
+            let finalLength = 0;
+            uint8Arrays.forEach((array) => {
+                finalLength += array.byteLength;
+            });
+            const merged = new Uint8Array(finalLength);
+            let index = 0;
+            uint8Arrays.forEach((array) => {
+                for (let i = 0; i < array.length; i++) {
+                    merged[index++] = array[i];
+                }
+            });
+            return new FbsBlob(merged, true);
+        }
+    }
+    uploadData() {
+        return this.data_;
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Returns the Object resulting from parsing the given JSON, or null if the
+ * given string does not represent a JSON object.
+ */
+function jsonObjectOrNull(s) {
+    let obj;
+    try {
+        obj = JSON.parse(s);
+    }
+    catch (e) {
+        return null;
+    }
+    if (isNonArrayObject(obj)) {
+        return obj;
+    }
+    else {
+        return null;
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Contains helper methods for manipulating paths.
+ */
+/**
+ * @return Null if the path is already at the root.
+ */
+function parent(path) {
+    if (path.length === 0) {
+        return null;
+    }
+    const index = path.lastIndexOf('/');
+    if (index === -1) {
+        return '';
+    }
+    const newPath = path.slice(0, index);
+    return newPath;
+}
+function child(path, childPath) {
+    const canonicalChildPath = childPath
+        .split('/')
+        .filter(component => component.length > 0)
+        .join('/');
+    if (path.length === 0) {
+        return canonicalChildPath;
+    }
+    else {
+        return path + '/' + canonicalChildPath;
+    }
+}
+/**
+ * Returns the last component of a path.
+ * '/foo/bar' -> 'bar'
+ * '/foo/bar/baz/' -> 'baz/'
+ * '/a' -> 'a'
+ */
+function lastComponent(path) {
+    const index = path.lastIndexOf('/', path.length - 2);
+    if (index === -1) {
+        return path;
+    }
+    else {
+        return path.slice(index + 1);
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+function noXform_(metadata, value) {
+    return value;
+}
+class Mapping {
+    constructor(server, local, writable, xform) {
+        this.server = server;
+        this.local = local || server;
+        this.writable = !!writable;
+        this.xform = xform || noXform_;
+    }
+}
+let mappings_ = null;
+function xformPath(fullPath) {
+    if (!isString(fullPath) || fullPath.length < 2) {
+        return fullPath;
+    }
+    else {
+        return lastComponent(fullPath);
+    }
+}
+function getMappings() {
+    if (mappings_) {
+        return mappings_;
+    }
+    const mappings = [];
+    mappings.push(new Mapping('bucket'));
+    mappings.push(new Mapping('generation'));
+    mappings.push(new Mapping('metageneration'));
+    mappings.push(new Mapping('name', 'fullPath', true));
+    function mappingsXformPath(_metadata, fullPath) {
+        return xformPath(fullPath);
+    }
+    const nameMapping = new Mapping('name');
+    nameMapping.xform = mappingsXformPath;
+    mappings.push(nameMapping);
+    /**
+     * Coerces the second param to a number, if it is defined.
+     */
+    function xformSize(_metadata, size) {
+        if (size !== undefined) {
+            return Number(size);
+        }
+        else {
+            return size;
+        }
+    }
+    const sizeMapping = new Mapping('size');
+    sizeMapping.xform = xformSize;
+    mappings.push(sizeMapping);
+    mappings.push(new Mapping('timeCreated'));
+    mappings.push(new Mapping('updated'));
+    mappings.push(new Mapping('md5Hash', null, true));
+    mappings.push(new Mapping('cacheControl', null, true));
+    mappings.push(new Mapping('contentDisposition', null, true));
+    mappings.push(new Mapping('contentEncoding', null, true));
+    mappings.push(new Mapping('contentLanguage', null, true));
+    mappings.push(new Mapping('contentType', null, true));
+    mappings.push(new Mapping('metadata', 'customMetadata', true));
+    mappings_ = mappings;
+    return mappings_;
+}
+function addRef(metadata, service) {
+    function generateRef() {
+        const bucket = metadata['bucket'];
+        const path = metadata['fullPath'];
+        const loc = new Location(bucket, path);
+        return service._makeStorageReference(loc);
+    }
+    Object.defineProperty(metadata, 'ref', { get: generateRef });
+}
+function fromResource(service, resource, mappings) {
+    const metadata = {};
+    metadata['type'] = 'file';
+    const len = mappings.length;
+    for (let i = 0; i < len; i++) {
+        const mapping = mappings[i];
+        metadata[mapping.local] = mapping.xform(metadata, resource[mapping.server]);
+    }
+    addRef(metadata, service);
+    return metadata;
+}
+function fromResourceString(service, resourceString, mappings) {
+    const obj = jsonObjectOrNull(resourceString);
+    if (obj === null) {
+        return null;
+    }
+    const resource = obj;
+    return fromResource(service, resource, mappings);
+}
+function downloadUrlFromResourceString(metadata, resourceString, host, protocol) {
+    const obj = jsonObjectOrNull(resourceString);
+    if (obj === null) {
+        return null;
+    }
+    if (!isString(obj['downloadTokens'])) {
+        // This can happen if objects are uploaded through GCS and retrieved
+        // through list, so we don't want to throw an Error.
+        return null;
+    }
+    const tokens = obj['downloadTokens'];
+    if (tokens.length === 0) {
+        return null;
+    }
+    const encode = encodeURIComponent;
+    const tokensList = tokens.split(',');
+    const urls = tokensList.map((token) => {
+        const bucket = metadata['bucket'];
+        const path = metadata['fullPath'];
+        const urlPart = '/b/' + encode(bucket) + '/o/' + encode(path);
+        const base = makeUrl(urlPart, host, protocol);
+        const queryString = makeQueryString({
+            alt: 'media',
+            token
+        });
+        return base + queryString;
+    });
+    return urls[0];
+}
+function toResourceString(metadata, mappings) {
+    const resource = {};
+    const len = mappings.length;
+    for (let i = 0; i < len; i++) {
+        const mapping = mappings[i];
+        if (mapping.writable) {
+            resource[mapping.server] = metadata[mapping.local];
+        }
+    }
+    return JSON.stringify(resource);
+}
+
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+const PREFIXES_KEY = 'prefixes';
+const ITEMS_KEY = 'items';
+function fromBackendResponse(service, bucket, resource) {
+    const listResult = {
+        prefixes: [],
+        items: [],
+        nextPageToken: resource['nextPageToken']
+    };
+    if (resource[PREFIXES_KEY]) {
+        for (const path of resource[PREFIXES_KEY]) {
+            const pathWithoutTrailingSlash = path.replace(/\/$/, '');
+            const reference = service._makeStorageReference(new Location(bucket, pathWithoutTrailingSlash));
+            listResult.prefixes.push(reference);
+        }
+    }
+    if (resource[ITEMS_KEY]) {
+        for (const item of resource[ITEMS_KEY]) {
+            const reference = service._makeStorageReference(new Location(bucket, item['name']));
+            listResult.items.push(reference);
+        }
+    }
+    return listResult;
+}
+function fromResponseString(service, bucket, resourceString) {
+    const obj = jsonObjectOrNull(resourceString);
+    if (obj === null) {
+        return null;
+    }
+    const resource = obj;
+    return fromBackendResponse(service, bucket, resource);
+}
+
+/**
+ * Contains a fully specified request.
+ *
+ * @param I - the type of the backend's network response.
+ * @param O - the output response type used by the rest of the SDK.
+ */
+class RequestInfo {
+    constructor(url, method, 
+    /**
+     * Returns the value with which to resolve the request's promise. Only called
+     * if the request is successful. Throw from this function to reject the
+     * returned Request's promise with the thrown error.
+     * Note: The XhrIo passed to this function may be reused after this callback
+     * returns. Do not keep a reference to it in any way.
+     */
+    handler, timeout) {
+        this.url = url;
+        this.method = method;
+        this.handler = handler;
+        this.timeout = timeout;
+        this.urlParams = {};
+        this.headers = {};
+        this.body = null;
+        this.errorHandler = null;
+        /**
+         * Called with the current number of bytes uploaded and total size (-1 if not
+         * computable) of the request body (i.e. used to report upload progress).
+         */
+        this.progressCallback = null;
+        this.successCodes = [200];
+        this.additionalRetryCodes = [];
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Throws the UNKNOWN StorageError if cndn is false.
+ */
+function handlerCheck(cndn) {
+    if (!cndn) {
+        throw unknown();
+    }
+}
+function metadataHandler(service, mappings) {
+    function handler(xhr, text) {
+        const metadata = fromResourceString(service, text, mappings);
+        handlerCheck(metadata !== null);
+        return metadata;
+    }
+    return handler;
+}
+function listHandler(service, bucket) {
+    function handler(xhr, text) {
+        const listResult = fromResponseString(service, bucket, text);
+        handlerCheck(listResult !== null);
+        return listResult;
+    }
+    return handler;
+}
+function downloadUrlHandler(service, mappings) {
+    function handler(xhr, text) {
+        const metadata = fromResourceString(service, text, mappings);
+        handlerCheck(metadata !== null);
+        return downloadUrlFromResourceString(metadata, text, service.host, service._protocol);
+    }
+    return handler;
+}
+function sharedErrorHandler(location) {
+    function errorHandler(xhr, err) {
+        let newErr;
+        if (xhr.getStatus() === 401) {
+            if (
+            // This exact message string is the only consistent part of the
+            // server's error response that identifies it as an App Check error.
+            xhr.getErrorText().includes('Firebase App Check token is invalid')) {
+                newErr = unauthorizedApp();
+            }
+            else {
+                newErr = unauthenticated();
+            }
+        }
+        else {
+            if (xhr.getStatus() === 402) {
+                newErr = quotaExceeded(location.bucket);
+            }
+            else {
+                if (xhr.getStatus() === 403) {
+                    newErr = unauthorized(location.path);
+                }
+                else {
+                    newErr = err;
+                }
+            }
+        }
+        newErr.status = xhr.getStatus();
+        newErr.serverResponse = err.serverResponse;
+        return newErr;
+    }
+    return errorHandler;
+}
+function objectErrorHandler(location) {
+    const shared = sharedErrorHandler(location);
+    function errorHandler(xhr, err) {
+        let newErr = shared(xhr, err);
+        if (xhr.getStatus() === 404) {
+            newErr = objectNotFound(location.path);
+        }
+        newErr.serverResponse = err.serverResponse;
+        return newErr;
+    }
+    return errorHandler;
+}
+function getMetadata$2(service, location, mappings) {
+    const urlPart = location.fullServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'GET';
+    const timeout = service.maxOperationRetryTime;
+    const requestInfo = new RequestInfo(url, method, metadataHandler(service, mappings), timeout);
+    requestInfo.errorHandler = objectErrorHandler(location);
+    return requestInfo;
+}
+function list$2(service, location, delimiter, pageToken, maxResults) {
+    const urlParams = {};
+    if (location.isRoot) {
+        urlParams['prefix'] = '';
+    }
+    else {
+        urlParams['prefix'] = location.path + '/';
+    }
+    if (delimiter && delimiter.length > 0) {
+        urlParams['delimiter'] = delimiter;
+    }
+    if (pageToken) {
+        urlParams['pageToken'] = pageToken;
+    }
+    if (maxResults) {
+        urlParams['maxResults'] = maxResults;
+    }
+    const urlPart = location.bucketOnlyServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'GET';
+    const timeout = service.maxOperationRetryTime;
+    const requestInfo = new RequestInfo(url, method, listHandler(service, location.bucket), timeout);
+    requestInfo.urlParams = urlParams;
+    requestInfo.errorHandler = sharedErrorHandler(location);
+    return requestInfo;
+}
+function getBytes$1(service, location, maxDownloadSizeBytes) {
+    const urlPart = location.fullServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol) + '?alt=media';
+    const method = 'GET';
+    const timeout = service.maxOperationRetryTime;
+    const requestInfo = new RequestInfo(url, method, (_, data) => data, timeout);
+    requestInfo.errorHandler = objectErrorHandler(location);
+    if (maxDownloadSizeBytes !== undefined) {
+        requestInfo.headers['Range'] = `bytes=0-${maxDownloadSizeBytes}`;
+        requestInfo.successCodes = [200 /* OK */, 206 /* Partial Content */];
+    }
+    return requestInfo;
+}
+function getDownloadUrl(service, location, mappings) {
+    const urlPart = location.fullServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'GET';
+    const timeout = service.maxOperationRetryTime;
+    const requestInfo = new RequestInfo(url, method, downloadUrlHandler(service, mappings), timeout);
+    requestInfo.errorHandler = objectErrorHandler(location);
+    return requestInfo;
+}
+function updateMetadata$2(service, location, metadata, mappings) {
+    const urlPart = location.fullServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'PATCH';
+    const body = toResourceString(metadata, mappings);
+    const headers = { 'Content-Type': 'application/json; charset=utf-8' };
+    const timeout = service.maxOperationRetryTime;
+    const requestInfo = new RequestInfo(url, method, metadataHandler(service, mappings), timeout);
+    requestInfo.headers = headers;
+    requestInfo.body = body;
+    requestInfo.errorHandler = objectErrorHandler(location);
+    return requestInfo;
+}
+function deleteObject$2(service, location) {
+    const urlPart = location.fullServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'DELETE';
+    const timeout = service.maxOperationRetryTime;
+    function handler(_xhr, _text) { }
+    const requestInfo = new RequestInfo(url, method, handler, timeout);
+    requestInfo.successCodes = [200, 204];
+    requestInfo.errorHandler = objectErrorHandler(location);
+    return requestInfo;
+}
+function determineContentType_(metadata, blob) {
+    return ((metadata && metadata['contentType']) ||
+        (blob && blob.type()) ||
+        'application/octet-stream');
+}
+function metadataForUpload_(location, blob, metadata) {
+    const metadataClone = Object.assign({}, metadata);
+    metadataClone['fullPath'] = location.path;
+    metadataClone['size'] = blob.size();
+    if (!metadataClone['contentType']) {
+        metadataClone['contentType'] = determineContentType_(null, blob);
+    }
+    return metadataClone;
+}
+/**
+ * Prepare RequestInfo for uploads as Content-Type: multipart.
+ */
+function multipartUpload(service, location, mappings, blob, metadata) {
+    const urlPart = location.bucketOnlyServerUrl();
+    const headers = {
+        'X-Goog-Upload-Protocol': 'multipart'
+    };
+    function genBoundary() {
+        let str = '';
+        for (let i = 0; i < 2; i++) {
+            str = str + Math.random().toString().slice(2);
+        }
+        return str;
+    }
+    const boundary = genBoundary();
+    headers['Content-Type'] = 'multipart/related; boundary=' + boundary;
+    const metadata_ = metadataForUpload_(location, blob, metadata);
+    const metadataString = toResourceString(metadata_, mappings);
+    const preBlobPart = '--' +
+        boundary +
+        '\r\n' +
+        'Content-Type: application/json; charset=utf-8\r\n\r\n' +
+        metadataString +
+        '\r\n--' +
+        boundary +
+        '\r\n' +
+        'Content-Type: ' +
+        metadata_['contentType'] +
+        '\r\n\r\n';
+    const postBlobPart = '\r\n--' + boundary + '--';
+    const body = FbsBlob.getBlob(preBlobPart, blob, postBlobPart);
+    if (body === null) {
+        throw cannotSliceBlob();
+    }
+    const urlParams = { name: metadata_['fullPath'] };
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'POST';
+    const timeout = service.maxUploadRetryTime;
+    const requestInfo = new RequestInfo(url, method, metadataHandler(service, mappings), timeout);
+    requestInfo.urlParams = urlParams;
+    requestInfo.headers = headers;
+    requestInfo.body = body.uploadData();
+    requestInfo.errorHandler = sharedErrorHandler(location);
+    return requestInfo;
+}
+/**
+ * @param current The number of bytes that have been uploaded so far.
+ * @param total The total number of bytes in the upload.
+ * @param opt_finalized True if the server has finished the upload.
+ * @param opt_metadata The upload metadata, should
+ *     only be passed if opt_finalized is true.
+ */
+class ResumableUploadStatus {
+    constructor(current, total, finalized, metadata) {
+        this.current = current;
+        this.total = total;
+        this.finalized = !!finalized;
+        this.metadata = metadata || null;
+    }
+}
+function checkResumeHeader_(xhr, allowed) {
+    let status = null;
+    try {
+        status = xhr.getResponseHeader('X-Goog-Upload-Status');
+    }
+    catch (e) {
+        handlerCheck(false);
+    }
+    const allowedStatus = allowed || ['active'];
+    handlerCheck(!!status && allowedStatus.indexOf(status) !== -1);
+    return status;
+}
+function createResumableUpload(service, location, mappings, blob, metadata) {
+    const urlPart = location.bucketOnlyServerUrl();
+    const metadataForUpload = metadataForUpload_(location, blob, metadata);
+    const urlParams = { name: metadataForUpload['fullPath'] };
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'POST';
+    const headers = {
+        'X-Goog-Upload-Protocol': 'resumable',
+        'X-Goog-Upload-Command': 'start',
+        'X-Goog-Upload-Header-Content-Length': `${blob.size()}`,
+        'X-Goog-Upload-Header-Content-Type': metadataForUpload['contentType'],
+        'Content-Type': 'application/json; charset=utf-8'
+    };
+    const body = toResourceString(metadataForUpload, mappings);
+    const timeout = service.maxUploadRetryTime;
+    function handler(xhr) {
+        checkResumeHeader_(xhr);
+        let url;
+        try {
+            url = xhr.getResponseHeader('X-Goog-Upload-URL');
+        }
+        catch (e) {
+            handlerCheck(false);
+        }
+        handlerCheck(isString(url));
+        return url;
+    }
+    const requestInfo = new RequestInfo(url, method, handler, timeout);
+    requestInfo.urlParams = urlParams;
+    requestInfo.headers = headers;
+    requestInfo.body = body;
+    requestInfo.errorHandler = sharedErrorHandler(location);
+    return requestInfo;
+}
+/**
+ * @param url From a call to fbs.requests.createResumableUpload.
+ */
+function getResumableUploadStatus(service, location, url, blob) {
+    const headers = { 'X-Goog-Upload-Command': 'query' };
+    function handler(xhr) {
+        const status = checkResumeHeader_(xhr, ['active', 'final']);
+        let sizeString = null;
+        try {
+            sizeString = xhr.getResponseHeader('X-Goog-Upload-Size-Received');
+        }
+        catch (e) {
+            handlerCheck(false);
+        }
+        if (!sizeString) {
+            // null or empty string
+            handlerCheck(false);
+        }
+        const size = Number(sizeString);
+        handlerCheck(!isNaN(size));
+        return new ResumableUploadStatus(size, blob.size(), status === 'final');
+    }
+    const method = 'POST';
+    const timeout = service.maxUploadRetryTime;
+    const requestInfo = new RequestInfo(url, method, handler, timeout);
+    requestInfo.headers = headers;
+    requestInfo.errorHandler = sharedErrorHandler(location);
+    return requestInfo;
+}
+/**
+ * Any uploads via the resumable upload API must transfer a number of bytes
+ * that is a multiple of this number.
+ */
+const RESUMABLE_UPLOAD_CHUNK_SIZE = 256 * 1024;
+/**
+ * @param url From a call to fbs.requests.createResumableUpload.
+ * @param chunkSize Number of bytes to upload.
+ * @param status The previous status.
+ *     If not passed or null, we start from the beginning.
+ * @throws fbs.Error If the upload is already complete, the passed in status
+ *     has a final size inconsistent with the blob, or the blob cannot be sliced
+ *     for upload.
+ */
+function continueResumableUpload(location, service, url, blob, chunkSize, mappings, status, progressCallback) {
+    // TODO(andysoto): standardize on internal asserts
+    // assert(!(opt_status && opt_status.finalized));
+    const status_ = new ResumableUploadStatus(0, 0);
+    if (status) {
+        status_.current = status.current;
+        status_.total = status.total;
+    }
+    else {
+        status_.current = 0;
+        status_.total = blob.size();
+    }
+    if (blob.size() !== status_.total) {
+        throw serverFileWrongSize();
+    }
+    const bytesLeft = status_.total - status_.current;
+    let bytesToUpload = bytesLeft;
+    if (chunkSize > 0) {
+        bytesToUpload = Math.min(bytesToUpload, chunkSize);
+    }
+    const startByte = status_.current;
+    const endByte = startByte + bytesToUpload;
+    let uploadCommand = '';
+    if (bytesToUpload === 0) {
+        uploadCommand = 'finalize';
+    }
+    else if (bytesLeft === bytesToUpload) {
+        uploadCommand = 'upload, finalize';
+    }
+    else {
+        uploadCommand = 'upload';
+    }
+    const headers = {
+        'X-Goog-Upload-Command': uploadCommand,
+        'X-Goog-Upload-Offset': `${status_.current}`
+    };
+    const body = blob.slice(startByte, endByte);
+    if (body === null) {
+        throw cannotSliceBlob();
+    }
+    function handler(xhr, text) {
+        // TODO(andysoto): Verify the MD5 of each uploaded range:
+        // the 'x-range-md5' header comes back with status code 308 responses.
+        // We'll only be able to bail out though, because you can't re-upload a
+        // range that you previously uploaded.
+        const uploadStatus = checkResumeHeader_(xhr, ['active', 'final']);
+        const newCurrent = status_.current + bytesToUpload;
+        const size = blob.size();
+        let metadata;
+        if (uploadStatus === 'final') {
+            metadata = metadataHandler(service, mappings)(xhr, text);
+        }
+        else {
+            metadata = null;
+        }
+        return new ResumableUploadStatus(newCurrent, size, uploadStatus === 'final', metadata);
+    }
+    const method = 'POST';
+    const timeout = service.maxUploadRetryTime;
+    const requestInfo = new RequestInfo(url, method, handler, timeout);
+    requestInfo.headers = headers;
+    requestInfo.body = body.uploadData();
+    requestInfo.progressCallback = progressCallback || null;
+    requestInfo.errorHandler = sharedErrorHandler(location);
+    return requestInfo;
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * An event that is triggered on a task.
+ * @internal
+ */
+const TaskEvent = {
+    /**
+     * For this event,
+     * <ul>
+     *   <li>The `next` function is triggered on progress updates and when the
+     *       task is paused/resumed with an `UploadTaskSnapshot` as the first
+     *       argument.</li>
+     *   <li>The `error` function is triggered if the upload is canceled or fails
+     *       for another reason.</li>
+     *   <li>The `complete` function is triggered if the upload completes
+     *       successfully.</li>
+     * </ul>
+     */
+    STATE_CHANGED: 'state_changed'
+};
+// type keys = keyof TaskState
+/**
+ * Represents the current state of a running upload.
+ * @internal
+ */
+const TaskState = {
+    /** The task is currently transferring data. */
+    RUNNING: 'running',
+    /** The task was paused by the user. */
+    PAUSED: 'paused',
+    /** The task completed successfully. */
+    SUCCESS: 'success',
+    /** The task was canceled. */
+    CANCELED: 'canceled',
+    /** The task failed with an error. */
+    ERROR: 'error'
+};
+function taskStateFromInternalTaskState(state) {
+    switch (state) {
+        case "running" /* InternalTaskState.RUNNING */:
+        case "pausing" /* InternalTaskState.PAUSING */:
+        case "canceling" /* InternalTaskState.CANCELING */:
+            return TaskState.RUNNING;
+        case "paused" /* InternalTaskState.PAUSED */:
+            return TaskState.PAUSED;
+        case "success" /* InternalTaskState.SUCCESS */:
+            return TaskState.SUCCESS;
+        case "canceled" /* InternalTaskState.CANCELED */:
+            return TaskState.CANCELED;
+        case "error" /* InternalTaskState.ERROR */:
+            return TaskState.ERROR;
+        default:
+            // TODO(andysoto): assert(false);
+            return TaskState.ERROR;
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+class Observer {
+    constructor(nextOrObserver, error, complete) {
+        const asFunctions = isFunction(nextOrObserver) || error != null || complete != null;
+        if (asFunctions) {
+            this.next = nextOrObserver;
+            this.error = error ?? undefined;
+            this.complete = complete ?? undefined;
+        }
+        else {
+            const observer = nextOrObserver;
+            this.next = observer.next;
+            this.error = observer.error;
+            this.complete = observer.complete;
+        }
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Returns a function that invokes f with its arguments asynchronously as a
+ * microtask, i.e. as soon as possible after the current script returns back
+ * into browser code.
+ */
+// eslint-disable-next-line @typescript-eslint/ban-types
+function async(f) {
+    return (...argsToForward) => {
+        // eslint-disable-next-line @typescript-eslint/no-floating-promises
+        Promise.resolve().then(() => f(...argsToForward));
+    };
+}
+
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/** An override for the text-based Connection. Used in tests. */
+let textFactoryOverride = null;
+/**
+ * Network layer that works in Node.
+ *
+ * This network implementation should not be used in browsers as it does not
+ * support progress updates.
+ */
+class FetchConnection {
+    constructor() {
+        this.errorText_ = '';
+        this.sent_ = false;
+        this.errorCode_ = ErrorCode.NO_ERROR;
+    }
+    async send(url, method, isUsingEmulator, body, headers) {
+        if (this.sent_) {
+            throw internalError('cannot .send() more than once');
+        }
+        this.sent_ = true;
+        try {
+            const response = await newFetch(url, method, isUsingEmulator, headers, body);
+            this.headers_ = response.headers;
+            this.statusCode_ = response.status;
+            this.errorCode_ = ErrorCode.NO_ERROR;
+            this.body_ = await response.arrayBuffer();
+        }
+        catch (e) {
+            this.errorText_ = e?.message;
+            // emulate XHR which sets status to 0 when encountering a network error
+            this.statusCode_ = 0;
+            this.errorCode_ = ErrorCode.NETWORK_ERROR;
+        }
+    }
+    getErrorCode() {
+        if (this.errorCode_ === undefined) {
+            throw internalError('cannot .getErrorCode() before receiving response');
+        }
+        return this.errorCode_;
+    }
+    getStatus() {
+        if (this.statusCode_ === undefined) {
+            throw internalError('cannot .getStatus() before receiving response');
+        }
+        return this.statusCode_;
+    }
+    getErrorText() {
+        return this.errorText_;
+    }
+    abort() {
+        // Not supported
+    }
+    getResponseHeader(header) {
+        if (!this.headers_) {
+            throw internalError('cannot .getResponseHeader() before receiving response');
+        }
+        return this.headers_.get(header);
+    }
+    addUploadProgressListener(listener) {
+        // Not supported
+    }
+    removeUploadProgressListener(listener) {
+        // Not supported
+    }
+}
+class FetchTextConnection extends FetchConnection {
+    getResponse() {
+        if (!this.body_) {
+            throw internalError('cannot .getResponse() before receiving response');
+        }
+        return Buffer.from(this.body_).toString('utf-8');
+    }
+}
+function newTextConnection() {
+    return textFactoryOverride
+        ? textFactoryOverride()
+        : new FetchTextConnection();
+}
+class FetchBytesConnection extends FetchConnection {
+    getResponse() {
+        if (!this.body_) {
+            throw internalError('cannot .getResponse() before sending');
+        }
+        return this.body_;
+    }
+}
+function newBytesConnection() {
+    return new FetchBytesConnection();
+}
+class FetchStreamConnection extends FetchConnection {
+    constructor() {
+        super(...arguments);
+        this.stream_ = null;
+    }
+    async send(url, method, isUsingEmulator, body, headers) {
+        if (this.sent_) {
+            throw internalError('cannot .send() more than once');
+        }
+        this.sent_ = true;
+        try {
+            const response = await newFetch(url, method, isUsingEmulator, headers, body);
+            this.headers_ = response.headers;
+            this.statusCode_ = response.status;
+            this.errorCode_ = ErrorCode.NO_ERROR;
+            this.stream_ = response.body;
+        }
+        catch (e) {
+            this.errorText_ = e?.message;
+            // emulate XHR which sets status to 0 when encountering a network error
+            this.statusCode_ = 0;
+            this.errorCode_ = ErrorCode.NETWORK_ERROR;
+        }
+    }
+    getResponse() {
+        if (!this.stream_) {
+            throw internalError('cannot .getResponse() before sending');
+        }
+        return this.stream_;
+    }
+}
+function newFetch(url, method, isUsingEmulator, headers, body) {
+    const fetchArgs = {
+        method,
+        headers: headers || {},
+        body: body
+    };
+    if (util.isCloudWorkstation(url) && isUsingEmulator) {
+        fetchArgs.credentials = 'include';
+    }
+    return fetch(url, fetchArgs);
+}
+function newStreamConnection() {
+    return new FetchStreamConnection();
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Represents a blob being uploaded. Can be used to pause/resume/cancel the
+ * upload and manage callbacks for various events.
+ * @internal
+ */
+class UploadTask {
+    isExponentialBackoffExpired() {
+        return this.sleepTime > this.maxSleepTime;
+    }
+    /**
+     * @param ref - The firebaseStorage.Reference object this task came
+     *     from, untyped to avoid cyclic dependencies.
+     * @param blob - The blob to upload.
+     */
+    constructor(ref, blob, metadata = null) {
+        /**
+         * Number of bytes transferred so far.
+         */
+        this._transferred = 0;
+        this._needToFetchStatus = false;
+        this._needToFetchMetadata = false;
+        this._observers = [];
+        this._error = undefined;
+        this._uploadUrl = undefined;
+        this._request = undefined;
+        this._chunkMultiplier = 1;
+        this._resolve = undefined;
+        this._reject = undefined;
+        this._ref = ref;
+        this._blob = blob;
+        this._metadata = metadata;
+        this._mappings = getMappings();
+        this._resumable = this._shouldDoResumable(this._blob);
+        this._state = "running" /* InternalTaskState.RUNNING */;
+        this._errorHandler = error => {
+            this._request = undefined;
+            this._chunkMultiplier = 1;
+            if (error._codeEquals(exports.StorageErrorCode.CANCELED)) {
+                this._needToFetchStatus = true;
+                this.completeTransitions_();
+            }
+            else {
+                const backoffExpired = this.isExponentialBackoffExpired();
+                if (isRetryStatusCode(error.status, [])) {
+                    if (backoffExpired) {
+                        error = retryLimitExceeded();
+                    }
+                    else {
+                        this.sleepTime = Math.max(this.sleepTime * 2, DEFAULT_MIN_SLEEP_TIME_MILLIS);
+                        this._needToFetchStatus = true;
+                        this.completeTransitions_();
+                        return;
+                    }
+                }
+                this._error = error;
+                this._transition("error" /* InternalTaskState.ERROR */);
+            }
+        };
+        this._metadataErrorHandler = error => {
+            this._request = undefined;
+            if (error._codeEquals(exports.StorageErrorCode.CANCELED)) {
+                this.completeTransitions_();
+            }
+            else {
+                this._error = error;
+                this._transition("error" /* InternalTaskState.ERROR */);
+            }
+        };
+        this.sleepTime = 0;
+        this.maxSleepTime = this._ref.storage.maxUploadRetryTime;
+        this._promise = new Promise((resolve, reject) => {
+            this._resolve = resolve;
+            this._reject = reject;
+            this._start();
+        });
+        // Prevent uncaught rejections on the internal promise from bubbling out
+        // to the top level with a dummy handler.
+        this._promise.then(null, () => { });
+    }
+    _makeProgressCallback() {
+        const sizeBefore = this._transferred;
+        return loaded => this._updateProgress(sizeBefore + loaded);
+    }
+    _shouldDoResumable(blob) {
+        return blob.size() > 256 * 1024;
+    }
+    _start() {
+        if (this._state !== "running" /* InternalTaskState.RUNNING */) {
+            // This can happen if someone pauses us in a resume callback, for example.
+            return;
+        }
+        if (this._request !== undefined) {
+            return;
+        }
+        if (this._resumable) {
+            if (this._uploadUrl === undefined) {
+                this._createResumable();
+            }
+            else {
+                if (this._needToFetchStatus) {
+                    this._fetchStatus();
+                }
+                else {
+                    if (this._needToFetchMetadata) {
+                        // Happens if we miss the metadata on upload completion.
+                        this._fetchMetadata();
+                    }
+                    else {
+                        this.pendingTimeout = setTimeout(() => {
+                            this.pendingTimeout = undefined;
+                            this._continueUpload();
+                        }, this.sleepTime);
+                    }
+                }
+            }
+        }
+        else {
+            this._oneShotUpload();
+        }
+    }
+    _resolveToken(callback) {
+        // eslint-disable-next-line @typescript-eslint/no-floating-promises
+        Promise.all([
+            this._ref.storage._getAuthToken(),
+            this._ref.storage._getAppCheckToken()
+        ]).then(([authToken, appCheckToken]) => {
+            switch (this._state) {
+                case "running" /* InternalTaskState.RUNNING */:
+                    callback(authToken, appCheckToken);
+                    break;
+                case "canceling" /* InternalTaskState.CANCELING */:
+                    this._transition("canceled" /* InternalTaskState.CANCELED */);
+                    break;
+                case "pausing" /* InternalTaskState.PAUSING */:
+                    this._transition("paused" /* InternalTaskState.PAUSED */);
+                    break;
+            }
+        });
+    }
+    // TODO(andysoto): assert false
+    _createResumable() {
+        this._resolveToken((authToken, appCheckToken) => {
+            const requestInfo = createResumableUpload(this._ref.storage, this._ref._location, this._mappings, this._blob, this._metadata);
+            const createRequest = this._ref.storage._makeRequest(requestInfo, newTextConnection, authToken, appCheckToken);
+            this._request = createRequest;
+            createRequest.getPromise().then((url) => {
+                this._request = undefined;
+                this._uploadUrl = url;
+                this._needToFetchStatus = false;
+                this.completeTransitions_();
+            }, this._errorHandler);
+        });
+    }
+    _fetchStatus() {
+        // TODO(andysoto): assert(this.uploadUrl_ !== null);
+        const url = this._uploadUrl;
+        this._resolveToken((authToken, appCheckToken) => {
+            const requestInfo = getResumableUploadStatus(this._ref.storage, this._ref._location, url, this._blob);
+            const statusRequest = this._ref.storage._makeRequest(requestInfo, newTextConnection, authToken, appCheckToken);
+            this._request = statusRequest;
+            statusRequest.getPromise().then(status => {
+                status = status;
+                this._request = undefined;
+                this._updateProgress(status.current);
+                this._needToFetchStatus = false;
+                if (status.finalized) {
+                    this._needToFetchMetadata = true;
+                }
+                this.completeTransitions_();
+            }, this._errorHandler);
+        });
+    }
+    _continueUpload() {
+        const chunkSize = RESUMABLE_UPLOAD_CHUNK_SIZE * this._chunkMultiplier;
+        const status = new ResumableUploadStatus(this._transferred, this._blob.size());
+        // TODO(andysoto): assert(this.uploadUrl_ !== null);
+        const url = this._uploadUrl;
+        this._resolveToken((authToken, appCheckToken) => {
+            let requestInfo;
+            try {
+                requestInfo = continueResumableUpload(this._ref._location, this._ref.storage, url, this._blob, chunkSize, this._mappings, status, this._makeProgressCallback());
+            }
+            catch (e) {
+                this._error = e;
+                this._transition("error" /* InternalTaskState.ERROR */);
+                return;
+            }
+            const uploadRequest = this._ref.storage._makeRequest(requestInfo, newTextConnection, authToken, appCheckToken, 
+            /*retry=*/ false // Upload requests should not be retried as each retry should be preceded by another query request. Which is handled in this file.
+            );
+            this._request = uploadRequest;
+            uploadRequest.getPromise().then((newStatus) => {
+                this._increaseMultiplier();
+                this._request = undefined;
+                this._updateProgress(newStatus.current);
+                if (newStatus.finalized) {
+                    this._metadata = newStatus.metadata;
+                    this._transition("success" /* InternalTaskState.SUCCESS */);
+                }
+                else {
+                    this.completeTransitions_();
+                }
+            }, this._errorHandler);
+        });
+    }
+    _increaseMultiplier() {
+        const currentSize = RESUMABLE_UPLOAD_CHUNK_SIZE * this._chunkMultiplier;
+        // Max chunk size is 32M.
+        if (currentSize * 2 < 32 * 1024 * 1024) {
+            this._chunkMultiplier *= 2;
+        }
+    }
+    _fetchMetadata() {
+        this._resolveToken((authToken, appCheckToken) => {
+            const requestInfo = getMetadata$2(this._ref.storage, this._ref._location, this._mappings);
+            const metadataRequest = this._ref.storage._makeRequest(requestInfo, newTextConnection, authToken, appCheckToken);
+            this._request = metadataRequest;
+            metadataRequest.getPromise().then(metadata => {
+                this._request = undefined;
+                this._metadata = metadata;
+                this._transition("success" /* InternalTaskState.SUCCESS */);
+            }, this._metadataErrorHandler);
+        });
+    }
+    _oneShotUpload() {
+        this._resolveToken((authToken, appCheckToken) => {
+            const requestInfo = multipartUpload(this._ref.storage, this._ref._location, this._mappings, this._blob, this._metadata);
+            const multipartRequest = this._ref.storage._makeRequest(requestInfo, newTextConnection, authToken, appCheckToken);
+            this._request = multipartRequest;
+            multipartRequest.getPromise().then(metadata => {
+                this._request = undefined;
+                this._metadata = metadata;
+                this._updateProgress(this._blob.size());
+                this._transition("success" /* InternalTaskState.SUCCESS */);
+            }, this._errorHandler);
+        });
+    }
+    _updateProgress(transferred) {
+        const old = this._transferred;
+        this._transferred = transferred;
+        // A progress update can make the "transferred" value smaller (e.g. a
+        // partial upload not completed by server, after which the "transferred"
+        // value may reset to the value at the beginning of the request).
+        if (this._transferred !== old) {
+            this._notifyObservers();
+        }
+    }
+    _transition(state) {
+        if (this._state === state) {
+            return;
+        }
+        switch (state) {
+            case "canceling" /* InternalTaskState.CANCELING */:
+            case "pausing" /* InternalTaskState.PAUSING */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.RUNNING ||
+                //        this.state_ === InternalTaskState.PAUSING);
+                this._state = state;
+                if (this._request !== undefined) {
+                    this._request.cancel();
+                }
+                else if (this.pendingTimeout) {
+                    clearTimeout(this.pendingTimeout);
+                    this.pendingTimeout = undefined;
+                    this.completeTransitions_();
+                }
+                break;
+            case "running" /* InternalTaskState.RUNNING */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.PAUSED ||
+                //        this.state_ === InternalTaskState.PAUSING);
+                const wasPaused = this._state === "paused" /* InternalTaskState.PAUSED */;
+                this._state = state;
+                if (wasPaused) {
+                    this._notifyObservers();
+                    this._start();
+                }
+                break;
+            case "paused" /* InternalTaskState.PAUSED */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.PAUSING);
+                this._state = state;
+                this._notifyObservers();
+                break;
+            case "canceled" /* InternalTaskState.CANCELED */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.PAUSED ||
+                //        this.state_ === InternalTaskState.CANCELING);
+                this._error = canceled();
+                this._state = state;
+                this._notifyObservers();
+                break;
+            case "error" /* InternalTaskState.ERROR */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.RUNNING ||
+                //        this.state_ === InternalTaskState.PAUSING ||
+                //        this.state_ === InternalTaskState.CANCELING);
+                this._state = state;
+                this._notifyObservers();
+                break;
+            case "success" /* InternalTaskState.SUCCESS */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.RUNNING ||
+                //        this.state_ === InternalTaskState.PAUSING ||
+                //        this.state_ === InternalTaskState.CANCELING);
+                this._state = state;
+                this._notifyObservers();
+                break;
+        }
+    }
+    completeTransitions_() {
+        switch (this._state) {
+            case "pausing" /* InternalTaskState.PAUSING */:
+                this._transition("paused" /* InternalTaskState.PAUSED */);
+                break;
+            case "canceling" /* InternalTaskState.CANCELING */:
+                this._transition("canceled" /* InternalTaskState.CANCELED */);
+                break;
+            case "running" /* InternalTaskState.RUNNING */:
+                this._start();
+                break;
+        }
+    }
+    /**
+     * A snapshot of the current task state.
+     */
+    get snapshot() {
+        const externalState = taskStateFromInternalTaskState(this._state);
+        return {
+            bytesTransferred: this._transferred,
+            totalBytes: this._blob.size(),
+            state: externalState,
+            metadata: this._metadata,
+            task: this,
+            ref: this._ref
+        };
+    }
+    /**
+     * Adds a callback for an event.
+     * @param type - The type of event to listen for.
+     * @param nextOrObserver -
+     *     The `next` function, which gets called for each item in
+     *     the event stream, or an observer object with some or all of these three
+     *     properties (`next`, `error`, `complete`).
+     * @param error - A function that gets called with a `StorageError`
+     *     if the event stream ends due to an error.
+     * @param completed - A function that gets called if the
+     *     event stream ends normally.
+     * @returns
+     *     If only the event argument is passed, returns a function you can use to
+     *     add callbacks (see the examples above). If more than just the event
+     *     argument is passed, returns a function you can call to unregister the
+     *     callbacks.
+     */
+    on(type, nextOrObserver, error, completed) {
+        // Note: `type` isn't being used. Its type is also incorrect. TaskEvent should not be a string.
+        const observer = new Observer(nextOrObserver || undefined, error || undefined, completed || undefined);
+        this._addObserver(observer);
+        return () => {
+            this._removeObserver(observer);
+        };
+    }
+    /**
+     * This object behaves like a Promise, and resolves with its snapshot data
+     * when the upload completes.
+     * @param onFulfilled - The fulfillment callback. Promise chaining works as normal.
+     * @param onRejected - The rejection callback.
+     */
+    then(onFulfilled, onRejected) {
+        // These casts are needed so that TypeScript can infer the types of the
+        // resulting Promise.
+        return this._promise.then(onFulfilled, onRejected);
+    }
+    /**
+     * Equivalent to calling `then(null, onRejected)`.
+     */
+    catch(onRejected) {
+        return this.then(null, onRejected);
+    }
+    /**
+     * Adds the given observer.
+     */
+    _addObserver(observer) {
+        this._observers.push(observer);
+        this._notifyObserver(observer);
+    }
+    /**
+     * Removes the given observer.
+     */
+    _removeObserver(observer) {
+        const i = this._observers.indexOf(observer);
+        if (i !== -1) {
+            this._observers.splice(i, 1);
+        }
+    }
+    _notifyObservers() {
+        this._finishPromise();
+        const observers = this._observers.slice();
+        observers.forEach(observer => {
+            this._notifyObserver(observer);
+        });
+    }
+    _finishPromise() {
+        if (this._resolve !== undefined) {
+            let triggered = true;
+            switch (taskStateFromInternalTaskState(this._state)) {
+                case TaskState.SUCCESS:
+                    async(this._resolve.bind(null, this.snapshot))();
+                    break;
+                case TaskState.CANCELED:
+                case TaskState.ERROR:
+                    const toCall = this._reject;
+                    async(toCall.bind(null, this._error))();
+                    break;
+                default:
+                    triggered = false;
+                    break;
+            }
+            if (triggered) {
+                this._resolve = undefined;
+                this._reject = undefined;
+            }
+        }
+    }
+    _notifyObserver(observer) {
+        const externalState = taskStateFromInternalTaskState(this._state);
+        switch (externalState) {
+            case TaskState.RUNNING:
+            case TaskState.PAUSED:
+                if (observer.next) {
+                    async(observer.next.bind(observer, this.snapshot))();
+                }
+                break;
+            case TaskState.SUCCESS:
+                if (observer.complete) {
+                    async(observer.complete.bind(observer))();
+                }
+                break;
+            case TaskState.CANCELED:
+            case TaskState.ERROR:
+                if (observer.error) {
+                    async(observer.error.bind(observer, this._error))();
+                }
+                break;
+            default:
+                // TODO(andysoto): assert(false);
+                if (observer.error) {
+                    async(observer.error.bind(observer, this._error))();
+                }
+        }
+    }
+    /**
+     * Resumes a paused task. Has no effect on a currently running or failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    resume() {
+        const valid = this._state === "paused" /* InternalTaskState.PAUSED */ ||
+            this._state === "pausing" /* InternalTaskState.PAUSING */;
+        if (valid) {
+            this._transition("running" /* InternalTaskState.RUNNING */);
+        }
+        return valid;
+    }
+    /**
+     * Pauses a currently running task. Has no effect on a paused or failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    pause() {
+        const valid = this._state === "running" /* InternalTaskState.RUNNING */;
+        if (valid) {
+            this._transition("pausing" /* InternalTaskState.PAUSING */);
+        }
+        return valid;
+    }
+    /**
+     * Cancels a currently running or paused task. Has no effect on a complete or
+     * failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    cancel() {
+        const valid = this._state === "running" /* InternalTaskState.RUNNING */ ||
+            this._state === "pausing" /* InternalTaskState.PAUSING */;
+        if (valid) {
+            this._transition("canceling" /* InternalTaskState.CANCELING */);
+        }
+        return valid;
+    }
+}
+
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Provides methods to interact with a bucket in the Firebase Storage service.
+ * @internal
+ * @param _location - An fbs.location, or the URL at
+ *     which to base this object, in one of the following forms:
+ *         gs://<bucket>/<object-path>
+ *         http[s]://firebasestorage.googleapis.com/
+ *                     <api-version>/b/<bucket>/o/<object-path>
+ *     Any query or fragment strings will be ignored in the http[s]
+ *     format. If no value is passed, the storage object will use a URL based on
+ *     the project ID of the base firebase.App instance.
+ */
+class Reference {
+    constructor(_service, location) {
+        this._service = _service;
+        if (location instanceof Location) {
+            this._location = location;
+        }
+        else {
+            this._location = Location.makeFromUrl(location, _service.host);
+        }
+    }
+    /**
+     * Returns the URL for the bucket and path this object references,
+     *     in the form gs://<bucket>/<object-path>
+     * @override
+     */
+    toString() {
+        return 'gs://' + this._location.bucket + '/' + this._location.path;
+    }
+    _newRef(service, location) {
+        return new Reference(service, location);
+    }
+    /**
+     * A reference to the root of this object's bucket.
+     */
+    get root() {
+        const location = new Location(this._location.bucket, '');
+        return this._newRef(this._service, location);
+    }
+    /**
+     * The name of the bucket containing this reference's object.
+     */
+    get bucket() {
+        return this._location.bucket;
+    }
+    /**
+     * The full path of this object.
+     */
+    get fullPath() {
+        return this._location.path;
+    }
+    /**
+     * The short name of this object, which is the last component of the full path.
+     * For example, if fullPath is 'full/path/image.png', name is 'image.png'.
+     */
+    get name() {
+        return lastComponent(this._location.path);
+    }
+    /**
+     * The `StorageService` instance this `StorageReference` is associated with.
+     */
+    get storage() {
+        return this._service;
+    }
+    /**
+     * A `StorageReference` pointing to the parent location of this `StorageReference`, or null if
+     * this reference is the root.
+     */
+    get parent() {
+        const newPath = parent(this._location.path);
+        if (newPath === null) {
+            return null;
+        }
+        const location = new Location(this._location.bucket, newPath);
+        return new Reference(this._service, location);
+    }
+    /**
+     * Utility function to throw an error in methods that do not accept a root reference.
+     */
+    _throwIfRoot(name) {
+        if (this._location.path === '') {
+            throw invalidRootOperation(name);
+        }
+    }
+}
+/**
+ * Download the bytes at the object's location.
+ * @returns A Promise containing the downloaded bytes.
+ */
+function getBytesInternal(ref, maxDownloadSizeBytes) {
+    ref._throwIfRoot('getBytes');
+    const requestInfo = getBytes$1(ref.storage, ref._location, maxDownloadSizeBytes);
+    return ref.storage
+        .makeRequestWithTokens(requestInfo, newBytesConnection)
+        .then(bytes => maxDownloadSizeBytes !== undefined
+        ? // GCS may not honor the Range header for small files
+            bytes.slice(0, maxDownloadSizeBytes)
+        : bytes);
+}
+/** Stream the bytes at the object's location. */
+function getStreamInternal(ref, maxDownloadSizeBytes) {
+    ref._throwIfRoot('getStream');
+    const requestInfo = getBytes$1(ref.storage, ref._location, maxDownloadSizeBytes);
+    // Transforms the stream so that only `maxDownloadSizeBytes` bytes are piped to the result
+    const newMaxSizeTransform = (n) => {
+        let missingBytes = n;
+        return {
+            transform(chunk, controller) {
+                // GCS may not honor the Range header for small files
+                if (chunk.length < missingBytes) {
+                    controller.enqueue(chunk);
+                    missingBytes -= chunk.length;
+                }
+                else {
+                    controller.enqueue(chunk.slice(0, missingBytes));
+                    controller.terminate();
+                }
+            }
+        };
+    };
+    const result = maxDownloadSizeBytes !== undefined
+        ? new TransformStream(newMaxSizeTransform(maxDownloadSizeBytes))
+        : new TransformStream(); // The default transformer forwards all chunks to its readable side
+    ref.storage
+        .makeRequestWithTokens(requestInfo, newStreamConnection)
+        .then(readableStream => readableStream.pipeThrough(result))
+        .catch(err => result.writable.abort(err));
+    return result.readable;
+}
+/**
+ * Uploads data to this object's location.
+ * The upload is not resumable.
+ *
+ * @param ref - StorageReference where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the newly uploaded data.
+ * @returns A Promise containing an UploadResult
+ */
+function uploadBytes$1(ref, data, metadata) {
+    ref._throwIfRoot('uploadBytes');
+    const requestInfo = multipartUpload(ref.storage, ref._location, getMappings(), new FbsBlob(data, true), metadata);
+    return ref.storage
+        .makeRequestWithTokens(requestInfo, newTextConnection)
+        .then(finalMetadata => {
+        return {
+            metadata: finalMetadata,
+            ref
+        };
+    });
+}
+/**
+ * Uploads data to this object's location.
+ * The upload can be paused and resumed, and exposes progress updates.
+ * @public
+ * @param ref - StorageReference where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the newly uploaded data.
+ * @returns An UploadTask
+ */
+function uploadBytesResumable$1(ref, data, metadata) {
+    ref._throwIfRoot('uploadBytesResumable');
+    return new UploadTask(ref, new FbsBlob(data), metadata);
+}
+/**
+ * Uploads a string to this object's location.
+ * The upload is not resumable.
+ * @public
+ * @param ref - StorageReference where string should be uploaded.
+ * @param value - The string to upload.
+ * @param format - The format of the string to upload.
+ * @param metadata - Metadata for the newly uploaded string.
+ * @returns A Promise containing an UploadResult
+ */
+function uploadString$1(ref, value, format = StringFormat.RAW, metadata) {
+    ref._throwIfRoot('uploadString');
+    const data = dataFromString(format, value);
+    const metadataClone = { ...metadata };
+    if (metadataClone['contentType'] == null && data.contentType != null) {
+        metadataClone['contentType'] = data.contentType;
+    }
+    return uploadBytes$1(ref, data.data, metadataClone);
+}
+/**
+ * List all items (files) and prefixes (folders) under this storage reference.
+ *
+ * This is a helper method for calling list() repeatedly until there are
+ * no more results. The default pagination size is 1000.
+ *
+ * Note: The results may not be consistent if objects are changed while this
+ * operation is running.
+ *
+ * Warning: listAll may potentially consume too many resources if there are
+ * too many results.
+ * @public
+ * @param ref - StorageReference to get list from.
+ *
+ * @returns A Promise that resolves with all the items and prefixes under
+ *      the current storage reference. `prefixes` contains references to
+ *      sub-directories and `items` contains references to objects in this
+ *      folder. `nextPageToken` is never returned.
+ */
+function listAll$1(ref) {
+    const accumulator = {
+        prefixes: [],
+        items: []
+    };
+    return listAllHelper(ref, accumulator).then(() => accumulator);
+}
+/**
+ * Separated from listAll because async functions can't use "arguments".
+ * @param ref
+ * @param accumulator
+ * @param pageToken
+ */
+async function listAllHelper(ref, accumulator, pageToken) {
+    const opt = {
+        // maxResults is 1000 by default.
+        pageToken
+    };
+    const nextPage = await list$1(ref, opt);
+    accumulator.prefixes.push(...nextPage.prefixes);
+    accumulator.items.push(...nextPage.items);
+    if (nextPage.nextPageToken != null) {
+        await listAllHelper(ref, accumulator, nextPage.nextPageToken);
+    }
+}
+/**
+ * List items (files) and prefixes (folders) under this storage reference.
+ *
+ * List API is only available for Firebase Rules Version 2.
+ *
+ * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'
+ * delimited folder structure.
+ * Refer to GCS's List API if you want to learn more.
+ *
+ * To adhere to Firebase Rules's Semantics, Firebase Storage does not
+ * support objects whose paths end with "/" or contain two consecutive
+ * "/"s. Firebase Storage List API will filter these unsupported objects.
+ * list() may fail if there are too many unsupported objects in the bucket.
+ * @public
+ *
+ * @param ref - StorageReference to get list from.
+ * @param options - See ListOptions for details.
+ * @returns A Promise that resolves with the items and prefixes.
+ *      `prefixes` contains references to sub-folders and `items`
+ *      contains references to objects in this folder. `nextPageToken`
+ *      can be used to get the rest of the results.
+ */
+function list$1(ref, options) {
+    if (options != null) {
+        if (typeof options.maxResults === 'number') {
+            validateNumber('options.maxResults', 
+            /* minValue= */ 1, 
+            /* maxValue= */ 1000, options.maxResults);
+        }
+    }
+    const op = options || {};
+    const requestInfo = list$2(ref.storage, ref._location, 
+    /*delimiter= */ '/', op.pageToken, op.maxResults);
+    return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);
+}
+/**
+ * A `Promise` that resolves with the metadata for this object. If this
+ * object doesn't exist or metadata cannot be retrieved, the promise is
+ * rejected.
+ * @public
+ * @param ref - StorageReference to get metadata from.
+ */
+function getMetadata$1(ref) {
+    ref._throwIfRoot('getMetadata');
+    const requestInfo = getMetadata$2(ref.storage, ref._location, getMappings());
+    return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);
+}
+/**
+ * Updates the metadata for this object.
+ * @public
+ * @param ref - StorageReference to update metadata for.
+ * @param metadata - The new metadata for the object.
+ *     Only values that have been explicitly set will be changed. Explicitly
+ *     setting a value to null will remove the metadata.
+ * @returns A `Promise` that resolves
+ *     with the new metadata for this object.
+ *     See `firebaseStorage.Reference.prototype.getMetadata`
+ */
+function updateMetadata$1(ref, metadata) {
+    ref._throwIfRoot('updateMetadata');
+    const requestInfo = updateMetadata$2(ref.storage, ref._location, metadata, getMappings());
+    return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);
+}
+/**
+ * Returns the download URL for the given Reference.
+ * @public
+ * @returns A `Promise` that resolves with the download
+ *     URL for this object.
+ */
+function getDownloadURL$1(ref) {
+    ref._throwIfRoot('getDownloadURL');
+    const requestInfo = getDownloadUrl(ref.storage, ref._location, getMappings());
+    return ref.storage
+        .makeRequestWithTokens(requestInfo, newTextConnection)
+        .then(url => {
+        if (url === null) {
+            throw noDownloadURL();
+        }
+        return url;
+    });
+}
+/**
+ * Deletes the object at this location.
+ * @public
+ * @param ref - StorageReference for object to delete.
+ * @returns A `Promise` that resolves if the deletion succeeds.
+ */
+function deleteObject$1(ref) {
+    ref._throwIfRoot('deleteObject');
+    const requestInfo = deleteObject$2(ref.storage, ref._location);
+    return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);
+}
+/**
+ * Returns reference for object obtained by appending `childPath` to `ref`.
+ *
+ * @param ref - StorageReference to get child of.
+ * @param childPath - Child path from provided ref.
+ * @returns A reference to the object obtained by
+ * appending childPath, removing any duplicate, beginning, or trailing
+ * slashes.
+ *
+ */
+function _getChild$1(ref, childPath) {
+    const newPath = child(ref._location.path, childPath);
+    const location = new Location(ref._location.bucket, newPath);
+    return new Reference(ref.storage, location);
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+function isUrl(path) {
+    return /^[A-Za-z]+:\/\//.test(path);
+}
+/**
+ * Returns a firebaseStorage.Reference for the given url.
+ */
+function refFromURL(service, url) {
+    return new Reference(service, url);
+}
+/**
+ * Returns a firebaseStorage.Reference for the given path in the default
+ * bucket.
+ */
+function refFromPath(ref, path) {
+    if (ref instanceof FirebaseStorageImpl) {
+        const service = ref;
+        if (service._bucket == null) {
+            throw noDefaultBucket();
+        }
+        const reference = new Reference(service, service._bucket);
+        if (path != null) {
+            return refFromPath(reference, path);
+        }
+        else {
+            return reference;
+        }
+    }
+    else {
+        // ref is a Reference
+        if (path !== undefined) {
+            return _getChild$1(ref, path);
+        }
+        else {
+            return ref;
+        }
+    }
+}
+function ref$1(serviceOrRef, pathOrUrl) {
+    if (pathOrUrl && isUrl(pathOrUrl)) {
+        if (serviceOrRef instanceof FirebaseStorageImpl) {
+            return refFromURL(serviceOrRef, pathOrUrl);
+        }
+        else {
+            throw invalidArgument('To use ref(service, url), the first argument must be a Storage instance.');
+        }
+    }
+    else {
+        return refFromPath(serviceOrRef, pathOrUrl);
+    }
+}
+function extractBucket(host, config) {
+    const bucketString = config?.[CONFIG_STORAGE_BUCKET_KEY];
+    if (bucketString == null) {
+        return null;
+    }
+    return Location.makeFromBucketSpec(bucketString, host);
+}
+function connectStorageEmulator$1(storage, host, port, options = {}) {
+    storage.host = `${host}:${port}`;
+    const useSsl = util.isCloudWorkstation(host);
+    // Workaround to get cookies in Firebase Studio
+    if (useSsl) {
+        void util.pingServer(`https://${storage.host}/b`);
+        util.updateEmulatorBanner('Storage', true);
+    }
+    storage._isUsingEmulator = true;
+    storage._protocol = useSsl ? 'https' : 'http';
+    const { mockUserToken } = options;
+    if (mockUserToken) {
+        storage._overrideAuthToken =
+            typeof mockUserToken === 'string'
+                ? mockUserToken
+                : util.createMockUserToken(mockUserToken, storage.app.options.projectId);
+    }
+}
+/**
+ * A service that provides Firebase Storage Reference instances.
+ * @param opt_url - gs:// url to a custom Storage Bucket
+ *
+ * @internal
+ */
+class FirebaseStorageImpl {
+    constructor(
+    /**
+     * FirebaseApp associated with this StorageService instance.
+     */
+    app, _authProvider, 
+    /**
+     * @internal
+     */
+    _appCheckProvider, 
+    /**
+     * @internal
+     */
+    _url, _firebaseVersion, _isUsingEmulator = false) {
+        this.app = app;
+        this._authProvider = _authProvider;
+        this._appCheckProvider = _appCheckProvider;
+        this._url = _url;
+        this._firebaseVersion = _firebaseVersion;
+        this._isUsingEmulator = _isUsingEmulator;
+        this._bucket = null;
+        /**
+         * This string can be in the formats:
+         * - host
+         * - host:port
+         */
+        this._host = DEFAULT_HOST;
+        this._protocol = 'https';
+        this._appId = null;
+        this._deleted = false;
+        this._maxOperationRetryTime = DEFAULT_MAX_OPERATION_RETRY_TIME;
+        this._maxUploadRetryTime = DEFAULT_MAX_UPLOAD_RETRY_TIME;
+        this._requests = new Set();
+        if (_url != null) {
+            this._bucket = Location.makeFromBucketSpec(_url, this._host);
+        }
+        else {
+            this._bucket = extractBucket(this._host, this.app.options);
+        }
+    }
+    /**
+     * The host string for this service, in the form of `host` or
+     * `host:port`.
+     */
+    get host() {
+        return this._host;
+    }
+    set host(host) {
+        this._host = host;
+        if (this._url != null) {
+            this._bucket = Location.makeFromBucketSpec(this._url, host);
+        }
+        else {
+            this._bucket = extractBucket(host, this.app.options);
+        }
+    }
+    /**
+     * The maximum time to retry uploads in milliseconds.
+     */
+    get maxUploadRetryTime() {
+        return this._maxUploadRetryTime;
+    }
+    set maxUploadRetryTime(time) {
+        validateNumber('time', 
+        /* minValue=*/ 0, 
+        /* maxValue= */ Number.POSITIVE_INFINITY, time);
+        this._maxUploadRetryTime = time;
+    }
+    /**
+     * The maximum time to retry operations other than uploads or downloads in
+     * milliseconds.
+     */
+    get maxOperationRetryTime() {
+        return this._maxOperationRetryTime;
+    }
+    set maxOperationRetryTime(time) {
+        validateNumber('time', 
+        /* minValue=*/ 0, 
+        /* maxValue= */ Number.POSITIVE_INFINITY, time);
+        this._maxOperationRetryTime = time;
+    }
+    async _getAuthToken() {
+        if (this._overrideAuthToken) {
+            return this._overrideAuthToken;
+        }
+        const auth = this._authProvider.getImmediate({ optional: true });
+        if (auth) {
+            const tokenData = await auth.getToken();
+            if (tokenData !== null) {
+                return tokenData.accessToken;
+            }
+        }
+        return null;
+    }
+    async _getAppCheckToken() {
+        if (app._isFirebaseServerApp(this.app) && this.app.settings.appCheckToken) {
+            return this.app.settings.appCheckToken;
+        }
+        const appCheck = this._appCheckProvider.getImmediate({ optional: true });
+        if (appCheck) {
+            const result = await appCheck.getToken();
+            // TODO: What do we want to do if there is an error getting the token?
+            // Context: appCheck.getToken() will never throw even if an error happened. In the error case, a dummy token will be
+            // returned along with an error field describing the error. In general, we shouldn't care about the error condition and just use
+            // the token (actual or dummy) to send requests.
+            return result.token;
+        }
+        return null;
+    }
+    /**
+     * Stop running requests and prevent more from being created.
+     */
+    _delete() {
+        if (!this._deleted) {
+            this._deleted = true;
+            this._requests.forEach(request => request.cancel());
+            this._requests.clear();
+        }
+        return Promise.resolve();
+    }
+    /**
+     * Returns a new firebaseStorage.Reference object referencing this StorageService
+     * at the given Location.
+     */
+    _makeStorageReference(loc) {
+        return new Reference(this, loc);
+    }
+    /**
+     * @param requestInfo - HTTP RequestInfo object
+     * @param authToken - Firebase auth token
+     */
+    _makeRequest(requestInfo, requestFactory, authToken, appCheckToken, retry = true) {
+        if (!this._deleted) {
+            const request = makeRequest(requestInfo, this._appId, authToken, appCheckToken, requestFactory, this._firebaseVersion, retry, this._isUsingEmulator);
+            this._requests.add(request);
+            // Request removes itself from set when complete.
+            request.getPromise().then(() => this._requests.delete(request), () => this._requests.delete(request));
+            return request;
+        }
+        else {
+            return new FailRequest(appDeleted());
+        }
+    }
+    async makeRequestWithTokens(requestInfo, requestFactory) {
+        const [authToken, appCheckToken] = await Promise.all([
+            this._getAuthToken(),
+            this._getAppCheckToken()
+        ]);
+        return this._makeRequest(requestInfo, requestFactory, authToken, appCheckToken).getPromise();
+    }
+}
+
+const name = "@firebase/storage";
+const version = "0.14.0";
+
+/**
+ * @license
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Type constant for Firebase Storage.
+ */
+const STORAGE_TYPE = 'storage';
+
+/**
+ * @license
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Downloads the data at the object's location. Returns an error if the object
+ * is not found.
+ *
+ * To use this functionality, you have to whitelist your app's origin in your
+ * Cloud Storage bucket. See also
+ * https://cloud.google.com/storage/docs/configuring-cors
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A Promise containing the object's bytes
+ */
+function getBytes(ref, maxDownloadSizeBytes) {
+    ref = util.getModularInstance(ref);
+    return getBytesInternal(ref, maxDownloadSizeBytes);
+}
+/**
+ * Uploads data to this object's location.
+ * The upload is not resumable.
+ * @public
+ * @param ref - {@link StorageReference} where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the data to upload.
+ * @returns A Promise containing an UploadResult
+ */
+function uploadBytes(ref, data, metadata) {
+    ref = util.getModularInstance(ref);
+    return uploadBytes$1(ref, data, metadata);
+}
+/**
+ * Uploads a string to this object's location.
+ * The upload is not resumable.
+ * @public
+ * @param ref - {@link StorageReference} where string should be uploaded.
+ * @param value - The string to upload.
+ * @param format - The format of the string to upload.
+ * @param metadata - Metadata for the string to upload.
+ * @returns A Promise containing an UploadResult
+ */
+function uploadString(ref, value, format, metadata) {
+    ref = util.getModularInstance(ref);
+    return uploadString$1(ref, value, format, metadata);
+}
+/**
+ * Uploads data to this object's location.
+ * The upload can be paused and resumed, and exposes progress updates.
+ * @public
+ * @param ref - {@link StorageReference} where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the data to upload.
+ * @returns An UploadTask
+ */
+function uploadBytesResumable(ref, data, metadata) {
+    ref = util.getModularInstance(ref);
+    return uploadBytesResumable$1(ref, data, metadata);
+}
+/**
+ * A `Promise` that resolves with the metadata for this object. If this
+ * object doesn't exist or metadata cannot be retrieved, the promise is
+ * rejected.
+ * @public
+ * @param ref - {@link StorageReference} to get metadata from.
+ */
+function getMetadata(ref) {
+    ref = util.getModularInstance(ref);
+    return getMetadata$1(ref);
+}
+/**
+ * Updates the metadata for this object.
+ * @public
+ * @param ref - {@link StorageReference} to update metadata for.
+ * @param metadata - The new metadata for the object.
+ *     Only values that have been explicitly set will be changed. Explicitly
+ *     setting a value to null will remove the metadata.
+ * @returns A `Promise` that resolves with the new metadata for this object.
+ */
+function updateMetadata(ref, metadata) {
+    ref = util.getModularInstance(ref);
+    return updateMetadata$1(ref, metadata);
+}
+/**
+ * List items (files) and prefixes (folders) under this storage reference.
+ *
+ * List API is only available for Firebase Rules Version 2.
+ *
+ * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'
+ * delimited folder structure.
+ * Refer to GCS's List API if you want to learn more.
+ *
+ * To adhere to Firebase Rules's Semantics, Firebase Storage does not
+ * support objects whose paths end with "/" or contain two consecutive
+ * "/"s. Firebase Storage List API will filter these unsupported objects.
+ * list() may fail if there are too many unsupported objects in the bucket.
+ * @public
+ *
+ * @param ref - {@link StorageReference} to get list from.
+ * @param options - See {@link ListOptions} for details.
+ * @returns A `Promise` that resolves with the items and prefixes.
+ *      `prefixes` contains references to sub-folders and `items`
+ *      contains references to objects in this folder. `nextPageToken`
+ *      can be used to get the rest of the results.
+ */
+function list(ref, options) {
+    ref = util.getModularInstance(ref);
+    return list$1(ref, options);
+}
+/**
+ * List all items (files) and prefixes (folders) under this storage reference.
+ *
+ * This is a helper method for calling list() repeatedly until there are
+ * no more results. The default pagination size is 1000.
+ *
+ * Note: The results may not be consistent if objects are changed while this
+ * operation is running.
+ *
+ * Warning: `listAll` may potentially consume too many resources if there are
+ * too many results.
+ * @public
+ * @param ref - {@link StorageReference} to get list from.
+ *
+ * @returns A `Promise` that resolves with all the items and prefixes under
+ *      the current storage reference. `prefixes` contains references to
+ *      sub-directories and `items` contains references to objects in this
+ *      folder. `nextPageToken` is never returned.
+ */
+function listAll(ref) {
+    ref = util.getModularInstance(ref);
+    return listAll$1(ref);
+}
+/**
+ * Returns the download URL for the given {@link StorageReference}.
+ * @public
+ * @param ref - {@link StorageReference} to get the download URL for.
+ * @returns A `Promise` that resolves with the download
+ *     URL for this object.
+ */
+function getDownloadURL(ref) {
+    ref = util.getModularInstance(ref);
+    return getDownloadURL$1(ref);
+}
+/**
+ * Deletes the object at this location.
+ * @public
+ * @param ref - {@link StorageReference} for object to delete.
+ * @returns A `Promise` that resolves if the deletion succeeds.
+ */
+function deleteObject(ref) {
+    ref = util.getModularInstance(ref);
+    return deleteObject$1(ref);
+}
+function ref(serviceOrRef, pathOrUrl) {
+    serviceOrRef = util.getModularInstance(serviceOrRef);
+    return ref$1(serviceOrRef, pathOrUrl);
+}
+/**
+ * @internal
+ */
+function _getChild(ref, childPath) {
+    return _getChild$1(ref, childPath);
+}
+/**
+ * Gets a {@link FirebaseStorage} instance for the given Firebase app.
+ * @public
+ * @param app - Firebase app to get {@link FirebaseStorage} instance for.
+ * @param bucketUrl - The gs:// url to your Firebase Storage Bucket.
+ * If not passed, uses the app's default Storage Bucket.
+ * @returns A {@link FirebaseStorage} instance.
+ */
+function getStorage(app$1 = app.getApp(), bucketUrl) {
+    app$1 = util.getModularInstance(app$1);
+    const storageProvider = app._getProvider(app$1, STORAGE_TYPE);
+    const storageInstance = storageProvider.getImmediate({
+        identifier: bucketUrl
+    });
+    const emulator = util.getDefaultEmulatorHostnameAndPort('storage');
+    if (emulator) {
+        connectStorageEmulator(storageInstance, ...emulator);
+    }
+    return storageInstance;
+}
+/**
+ * Modify this {@link FirebaseStorage} instance to communicate with the Cloud Storage emulator.
+ *
+ * @param storage - The {@link FirebaseStorage} instance
+ * @param host - The emulator host (ex: localhost)
+ * @param port - The emulator port (ex: 5001)
+ * @param options - Emulator options. `options.mockUserToken` is the mock auth
+ * token to use for unit testing Security Rules.
+ * @public
+ */
+function connectStorageEmulator(storage, host, port, options = {}) {
+    connectStorageEmulator$1(storage, host, port, options);
+}
+
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Downloads the data at the object's location. Returns an error if the object
+ * is not found.
+ *
+ * To use this functionality, you have to whitelist your app's origin in your
+ * Cloud Storage bucket. See also
+ * https://cloud.google.com/storage/docs/configuring-cors
+ *
+ * This API is not available in Node.
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A Promise that resolves with a Blob containing the object's bytes
+ */
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
+function getBlob(ref, maxDownloadSizeBytes) {
+    throw new Error('getBlob() is only available in Browser-like environments');
+}
+/**
+ * Downloads the data at the object's location. Raises an error event if the
+ * object is not found.
+ *
+ * This API is only available in Node.
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A stream with the object's data as bytes
+ */
+function getStream(ref, maxDownloadSizeBytes) {
+    ref = util.getModularInstance(ref);
+    return getStreamInternal(ref, maxDownloadSizeBytes);
+}
+
+/**
+ * Cloud Storage for Firebase
+ *
+ * @packageDocumentation
+ */
+function factory(container, { instanceIdentifier: url }) {
+    const app$1 = container.getProvider('app').getImmediate();
+    const authProvider = container.getProvider('auth-internal');
+    const appCheckProvider = container.getProvider('app-check-internal');
+    return new FirebaseStorageImpl(app$1, authProvider, appCheckProvider, url, app.SDK_VERSION);
+}
+function registerStorage() {
+    app._registerComponent(new component.Component(STORAGE_TYPE, factory, "PUBLIC" /* ComponentType.PUBLIC */).setMultipleInstances(true));
+    app.registerVersion(name, version);
+}
+registerStorage();
+
+exports.StorageError = StorageError;
+exports.StringFormat = StringFormat;
+exports._FbsBlob = FbsBlob;
+exports._Location = Location;
+exports._TaskEvent = TaskEvent;
+exports._TaskState = TaskState;
+exports._UploadTask = UploadTask;
+exports._dataFromString = dataFromString;
+exports._getChild = _getChild;
+exports._invalidArgument = invalidArgument;
+exports._invalidRootOperation = invalidRootOperation;
+exports.connectStorageEmulator = connectStorageEmulator;
+exports.deleteObject = deleteObject;
+exports.getBlob = getBlob;
+exports.getBytes = getBytes;
+exports.getDownloadURL = getDownloadURL;
+exports.getMetadata = getMetadata;
+exports.getStorage = getStorage;
+exports.getStream = getStream;
+exports.list = list;
+exports.listAll = listAll;
+exports.ref = ref;
+exports.updateMetadata = updateMetadata;
+exports.uploadBytes = uploadBytes;
+exports.uploadBytesResumable = uploadBytesResumable;
+exports.uploadString = uploadString;
+//# sourceMappingURL=index.node.cjs.js.map
diff --git a/frontend-old/node_modules/@firebase/storage/dist/index.node.cjs.js.map b/frontend-old/node_modules/@firebase/storage/dist/index.node.cjs.js.map
new file mode 100644
index 0000000..1411b46
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/index.node.cjs.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.node.cjs.js","sources":["../src/implementation/constants.ts","../src/implementation/error.ts","../src/implementation/location.ts","../src/implementation/failrequest.ts","../src/implementation/backoff.ts","../src/implementation/type.ts","../src/implementation/url.ts","../src/implementation/connection.ts","../src/implementation/utils.ts","../src/implementation/request.ts","../src/implementation/fs.ts","../src/platform/node/base64.ts","../src/implementation/string.ts","../src/implementation/blob.ts","../src/implementation/json.ts","../src/implementation/path.ts","../src/implementation/metadata.ts","../src/implementation/list.ts","../src/implementation/requestinfo.ts","../src/implementation/requests.ts","../src/implementation/taskenums.ts","../src/implementation/observer.ts","../src/implementation/async.ts","../src/platform/node/connection.ts","../src/task.ts","../src/reference.ts","../src/service.ts","../src/constants.ts","../src/api.ts","../src/api.node.ts","../src/index.node.ts"],"sourcesContent":["/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * @fileoverview Constants used in the Firebase Storage library.\n */\n\n/**\n * Domain name for firebase storage.\n */\nexport const DEFAULT_HOST = 'firebasestorage.googleapis.com';\n\n/**\n * The key in Firebase config json for the storage bucket.\n */\nexport const CONFIG_STORAGE_BUCKET_KEY = 'storageBucket';\n\n/**\n * 2 minutes\n *\n * The timeout for all operations except upload.\n */\nexport const DEFAULT_MAX_OPERATION_RETRY_TIME = 2 * 60 * 1000;\n\n/**\n * 10 minutes\n *\n * The timeout for upload.\n */\nexport const DEFAULT_MAX_UPLOAD_RETRY_TIME = 10 * 60 * 1000;\n\n/**\n * 1 second\n */\nexport const DEFAULT_MIN_SLEEP_TIME_MILLIS = 1000;\n\n/**\n * This is the value of Number.MIN_SAFE_INTEGER, which is not well supported\n * enough for us to use it directly.\n */\nexport const MIN_SAFE_INTEGER = -9007199254740991;\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { FirebaseError } from '@firebase/util';\n\nimport { CONFIG_STORAGE_BUCKET_KEY } from './constants';\n\n/**\n * An error returned by the Firebase Storage SDK.\n * @public\n */\nexport class StorageError extends FirebaseError {\n  private readonly _baseMessage: string;\n  /**\n   * Stores custom error data unique to the `StorageError`.\n   */\n  customData: { serverResponse: string | null } = { serverResponse: null };\n\n  /**\n   * @param code - A `StorageErrorCode` string to be prefixed with 'storage/' and\n   *  added to the end of the message.\n   * @param message  - Error message.\n   * @param status_ - Corresponding HTTP Status Code\n   */\n  constructor(code: StorageErrorCode, message: string, private status_ = 0) {\n    super(\n      prependCode(code),\n      `Firebase Storage: ${message} (${prependCode(code)})`\n    );\n    this._baseMessage = this.message;\n    // Without this, `instanceof StorageError`, in tests for example,\n    // returns false.\n    Object.setPrototypeOf(this, StorageError.prototype);\n  }\n\n  get status(): number {\n    return this.status_;\n  }\n\n  set status(status: number) {\n    this.status_ = status;\n  }\n\n  /**\n   * Compares a `StorageErrorCode` against this error's code, filtering out the prefix.\n   */\n  _codeEquals(code: StorageErrorCode): boolean {\n    return prependCode(code) === this.code;\n  }\n\n  /**\n   * Optional response message that was added by the server.\n   */\n  get serverResponse(): null | string {\n    return this.customData.serverResponse;\n  }\n\n  set serverResponse(serverResponse: string | null) {\n    this.customData.serverResponse = serverResponse;\n    if (this.customData.serverResponse) {\n      this.message = `${this._baseMessage}\\n${this.customData.serverResponse}`;\n    } else {\n      this.message = this._baseMessage;\n    }\n  }\n}\n\nexport const errors = {};\n\n/**\n * @public\n * Error codes that can be attached to `StorageError` objects.\n */\nexport enum StorageErrorCode {\n  // Shared between all platforms\n  UNKNOWN = 'unknown',\n  OBJECT_NOT_FOUND = 'object-not-found',\n  BUCKET_NOT_FOUND = 'bucket-not-found',\n  PROJECT_NOT_FOUND = 'project-not-found',\n  QUOTA_EXCEEDED = 'quota-exceeded',\n  UNAUTHENTICATED = 'unauthenticated',\n  UNAUTHORIZED = 'unauthorized',\n  UNAUTHORIZED_APP = 'unauthorized-app',\n  RETRY_LIMIT_EXCEEDED = 'retry-limit-exceeded',\n  INVALID_CHECKSUM = 'invalid-checksum',\n  CANCELED = 'canceled',\n  // JS specific\n  INVALID_EVENT_NAME = 'invalid-event-name',\n  INVALID_URL = 'invalid-url',\n  INVALID_DEFAULT_BUCKET = 'invalid-default-bucket',\n  NO_DEFAULT_BUCKET = 'no-default-bucket',\n  CANNOT_SLICE_BLOB = 'cannot-slice-blob',\n  SERVER_FILE_WRONG_SIZE = 'server-file-wrong-size',\n  NO_DOWNLOAD_URL = 'no-download-url',\n  INVALID_ARGUMENT = 'invalid-argument',\n  INVALID_ARGUMENT_COUNT = 'invalid-argument-count',\n  APP_DELETED = 'app-deleted',\n  INVALID_ROOT_OPERATION = 'invalid-root-operation',\n  INVALID_FORMAT = 'invalid-format',\n  INTERNAL_ERROR = 'internal-error',\n  UNSUPPORTED_ENVIRONMENT = 'unsupported-environment'\n}\n\nexport function prependCode(code: StorageErrorCode): string {\n  return 'storage/' + code;\n}\n\nexport function unknown(): StorageError {\n  const message =\n    'An unknown error occurred, please check the error payload for ' +\n    'server response.';\n  return new StorageError(StorageErrorCode.UNKNOWN, message);\n}\n\nexport function objectNotFound(path: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.OBJECT_NOT_FOUND,\n    \"Object '\" + path + \"' does not exist.\"\n  );\n}\n\nexport function bucketNotFound(bucket: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.BUCKET_NOT_FOUND,\n    \"Bucket '\" + bucket + \"' does not exist.\"\n  );\n}\n\nexport function projectNotFound(project: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.PROJECT_NOT_FOUND,\n    \"Project '\" + project + \"' does not exist.\"\n  );\n}\n\nexport function quotaExceeded(bucket: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.QUOTA_EXCEEDED,\n    \"Quota for bucket '\" +\n      bucket +\n      \"' exceeded, please view quota on \" +\n      'https://firebase.google.com/pricing/.'\n  );\n}\n\nexport function unauthenticated(): StorageError {\n  const message =\n    'User is not authenticated, please authenticate using Firebase ' +\n    'Authentication and try again.';\n  return new StorageError(StorageErrorCode.UNAUTHENTICATED, message);\n}\n\nexport function unauthorizedApp(): StorageError {\n  return new StorageError(\n    StorageErrorCode.UNAUTHORIZED_APP,\n    'This app does not have permission to access Firebase Storage on this project.'\n  );\n}\n\nexport function unauthorized(path: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.UNAUTHORIZED,\n    \"User does not have permission to access '\" + path + \"'.\"\n  );\n}\n\nexport function retryLimitExceeded(): StorageError {\n  return new StorageError(\n    StorageErrorCode.RETRY_LIMIT_EXCEEDED,\n    'Max retry time for operation exceeded, please try again.'\n  );\n}\n\nexport function invalidChecksum(\n  path: string,\n  checksum: string,\n  calculated: string\n): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_CHECKSUM,\n    \"Uploaded/downloaded object '\" +\n      path +\n      \"' has checksum '\" +\n      checksum +\n      \"' which does not match '\" +\n      calculated +\n      \"'. Please retry the upload/download.\"\n  );\n}\n\nexport function canceled(): StorageError {\n  return new StorageError(\n    StorageErrorCode.CANCELED,\n    'User canceled the upload/download.'\n  );\n}\n\nexport function invalidEventName(name: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_EVENT_NAME,\n    \"Invalid event name '\" + name + \"'.\"\n  );\n}\n\nexport function invalidUrl(url: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_URL,\n    \"Invalid URL '\" + url + \"'.\"\n  );\n}\n\nexport function invalidDefaultBucket(bucket: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_DEFAULT_BUCKET,\n    \"Invalid default bucket '\" + bucket + \"'.\"\n  );\n}\n\nexport function noDefaultBucket(): StorageError {\n  return new StorageError(\n    StorageErrorCode.NO_DEFAULT_BUCKET,\n    'No default bucket ' +\n      \"found. Did you set the '\" +\n      CONFIG_STORAGE_BUCKET_KEY +\n      \"' property when initializing the app?\"\n  );\n}\n\nexport function cannotSliceBlob(): StorageError {\n  return new StorageError(\n    StorageErrorCode.CANNOT_SLICE_BLOB,\n    'Cannot slice blob for upload. Please retry the upload.'\n  );\n}\n\nexport function serverFileWrongSize(): StorageError {\n  return new StorageError(\n    StorageErrorCode.SERVER_FILE_WRONG_SIZE,\n    'Server recorded incorrect upload file size, please retry the upload.'\n  );\n}\n\nexport function noDownloadURL(): StorageError {\n  return new StorageError(\n    StorageErrorCode.NO_DOWNLOAD_URL,\n    'The given file does not have any download URLs.'\n  );\n}\n\nexport function missingPolyFill(polyFill: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.UNSUPPORTED_ENVIRONMENT,\n    `${polyFill} is missing. Make sure to install the required polyfills. See https://firebase.google.com/docs/web/environments-js-sdk#polyfills for more information.`\n  );\n}\n\n/**\n * @internal\n */\nexport function invalidArgument(message: string): StorageError {\n  return new StorageError(StorageErrorCode.INVALID_ARGUMENT, message);\n}\n\nexport function invalidArgumentCount(\n  argMin: number,\n  argMax: number,\n  fnName: string,\n  real: number\n): StorageError {\n  let countPart;\n  let plural;\n  if (argMin === argMax) {\n    countPart = argMin;\n    plural = argMin === 1 ? 'argument' : 'arguments';\n  } else {\n    countPart = 'between ' + argMin + ' and ' + argMax;\n    plural = 'arguments';\n  }\n  return new StorageError(\n    StorageErrorCode.INVALID_ARGUMENT_COUNT,\n    'Invalid argument count in `' +\n      fnName +\n      '`: Expected ' +\n      countPart +\n      ' ' +\n      plural +\n      ', received ' +\n      real +\n      '.'\n  );\n}\n\nexport function appDeleted(): StorageError {\n  return new StorageError(\n    StorageErrorCode.APP_DELETED,\n    'The Firebase app was deleted.'\n  );\n}\n\n/**\n * @param name - The name of the operation that was invalid.\n *\n * @internal\n */\nexport function invalidRootOperation(name: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_ROOT_OPERATION,\n    \"The operation '\" +\n      name +\n      \"' cannot be performed on a root reference, create a non-root \" +\n      \"reference using child, such as .child('file.png').\"\n  );\n}\n\n/**\n * @param format - The format that was not valid.\n * @param message - A message describing the format violation.\n */\nexport function invalidFormat(format: string, message: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_FORMAT,\n    \"String does not match format '\" + format + \"': \" + message\n  );\n}\n\n/**\n * @param message - A message describing the internal error.\n */\nexport function unsupportedEnvironment(message: string): StorageError {\n  throw new StorageError(StorageErrorCode.UNSUPPORTED_ENVIRONMENT, message);\n}\n\n/**\n * @param message - A message describing the internal error.\n */\nexport function internalError(message: string): StorageError {\n  throw new StorageError(\n    StorageErrorCode.INTERNAL_ERROR,\n    'Internal error: ' + message\n  );\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Functionality related to the parsing/composition of bucket/\n * object location.\n */\n\nimport { invalidDefaultBucket, invalidUrl } from './error';\nimport { DEFAULT_HOST } from './constants';\n\n/**\n * Firebase Storage location data.\n *\n * @internal\n */\nexport class Location {\n  private path_: string;\n\n  constructor(public readonly bucket: string, path: string) {\n    this.path_ = path;\n  }\n\n  get path(): string {\n    return this.path_;\n  }\n\n  get isRoot(): boolean {\n    return this.path.length === 0;\n  }\n\n  fullServerUrl(): string {\n    const encode = encodeURIComponent;\n    return '/b/' + encode(this.bucket) + '/o/' + encode(this.path);\n  }\n\n  bucketOnlyServerUrl(): string {\n    const encode = encodeURIComponent;\n    return '/b/' + encode(this.bucket) + '/o';\n  }\n\n  static makeFromBucketSpec(bucketString: string, host: string): Location {\n    let bucketLocation;\n    try {\n      bucketLocation = Location.makeFromUrl(bucketString, host);\n    } catch (e) {\n      // Not valid URL, use as-is. This lets you put bare bucket names in\n      // config.\n      return new Location(bucketString, '');\n    }\n    if (bucketLocation.path === '') {\n      return bucketLocation;\n    } else {\n      throw invalidDefaultBucket(bucketString);\n    }\n  }\n\n  static makeFromUrl(url: string, host: string): Location {\n    let location: Location | null = null;\n    const bucketDomain = '([A-Za-z0-9.\\\\-_]+)';\n\n    function gsModify(loc: Location): void {\n      if (loc.path.charAt(loc.path.length - 1) === '/') {\n        loc.path_ = loc.path_.slice(0, -1);\n      }\n    }\n    const gsPath = '(/(.*))?$';\n    const gsRegex = new RegExp('^gs://' + bucketDomain + gsPath, 'i');\n    const gsIndices = { bucket: 1, path: 3 };\n\n    function httpModify(loc: Location): void {\n      loc.path_ = decodeURIComponent(loc.path);\n    }\n    const version = 'v[A-Za-z0-9_]+';\n    const firebaseStorageHost = host.replace(/[.]/g, '\\\\.');\n    const firebaseStoragePath = '(/([^?#]*).*)?$';\n    const firebaseStorageRegExp = new RegExp(\n      `^https?://${firebaseStorageHost}/${version}/b/${bucketDomain}/o${firebaseStoragePath}`,\n      'i'\n    );\n    const firebaseStorageIndices = { bucket: 1, path: 3 };\n\n    const cloudStorageHost =\n      host === DEFAULT_HOST\n        ? '(?:storage.googleapis.com|storage.cloud.google.com)'\n        : host;\n    const cloudStoragePath = '([^?#]*)';\n    const cloudStorageRegExp = new RegExp(\n      `^https?://${cloudStorageHost}/${bucketDomain}/${cloudStoragePath}`,\n      'i'\n    );\n    const cloudStorageIndices = { bucket: 1, path: 2 };\n\n    const groups = [\n      { regex: gsRegex, indices: gsIndices, postModify: gsModify },\n      {\n        regex: firebaseStorageRegExp,\n        indices: firebaseStorageIndices,\n        postModify: httpModify\n      },\n      {\n        regex: cloudStorageRegExp,\n        indices: cloudStorageIndices,\n        postModify: httpModify\n      }\n    ];\n    for (let i = 0; i < groups.length; i++) {\n      const group = groups[i];\n      const captures = group.regex.exec(url);\n      if (captures) {\n        const bucketValue = captures[group.indices.bucket];\n        let pathValue = captures[group.indices.path];\n        if (!pathValue) {\n          pathValue = '';\n        }\n        location = new Location(bucketValue, pathValue);\n        group.postModify(location);\n        break;\n      }\n    }\n    if (location == null) {\n      throw invalidUrl(url);\n    }\n    return location;\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport { StorageError } from './error';\nimport { Request } from './request';\n\n/**\n * A request whose promise always fails.\n */\nexport class FailRequest<T> implements Request<T> {\n  promise_: Promise<T>;\n\n  constructor(error: StorageError) {\n    this.promise_ = Promise.reject<T>(error);\n  }\n\n  /** @inheritDoc */\n  getPromise(): Promise<T> {\n    return this.promise_;\n  }\n\n  /** @inheritDoc */\n  cancel(_appDelete = false): void {}\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Provides a method for running a function with exponential\n * backoff.\n */\ntype id = (p1: boolean) => void;\n\nexport { id };\n\n/**\n * Accepts a callback for an action to perform (`doRequest`),\n * and then a callback for when the backoff has completed (`backoffCompleteCb`).\n * The callback sent to start requires an argument to call (`onRequestComplete`).\n * When `start` calls `doRequest`, it passes a callback for when the request has\n * completed, `onRequestComplete`. Based on this, the backoff continues, with\n * another call to `doRequest` and the above loop continues until the timeout\n * is hit, or a successful response occurs.\n * @description\n * @param doRequest Callback to perform request\n * @param backoffCompleteCb Callback to call when backoff has been completed\n */\nexport function start(\n  doRequest: (\n    onRequestComplete: (success: boolean) => void,\n    canceled: boolean\n  ) => void,\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  backoffCompleteCb: (...args: any[]) => unknown,\n  timeout: number\n): id {\n  // TODO(andysoto): make this code cleaner (probably refactor into an actual\n  // type instead of a bunch of functions with state shared in the closure)\n  let waitSeconds = 1;\n  // Would type this as \"number\" but that doesn't work for Node so ¯\\_(ツ)_/¯\n  // TODO: find a way to exclude Node type definition for storage because storage only works in browser\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  let retryTimeoutId: any = null;\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  let globalTimeoutId: any = null;\n  let hitTimeout = false;\n  let cancelState = 0;\n\n  function canceled(): boolean {\n    return cancelState === 2;\n  }\n  let triggeredCallback = false;\n\n  function triggerCallback(...args: any[]): void {\n    if (!triggeredCallback) {\n      triggeredCallback = true;\n      backoffCompleteCb.apply(null, args);\n    }\n  }\n\n  function callWithDelay(millis: number): void {\n    retryTimeoutId = setTimeout(() => {\n      retryTimeoutId = null;\n      doRequest(responseHandler, canceled());\n    }, millis);\n  }\n\n  function clearGlobalTimeout(): void {\n    if (globalTimeoutId) {\n      clearTimeout(globalTimeoutId);\n    }\n  }\n\n  function responseHandler(success: boolean, ...args: any[]): void {\n    if (triggeredCallback) {\n      clearGlobalTimeout();\n      return;\n    }\n    if (success) {\n      clearGlobalTimeout();\n      triggerCallback.call(null, success, ...args);\n      return;\n    }\n    const mustStop = canceled() || hitTimeout;\n    if (mustStop) {\n      clearGlobalTimeout();\n      triggerCallback.call(null, success, ...args);\n      return;\n    }\n    if (waitSeconds < 64) {\n      /* TODO(andysoto): don't back off so quickly if we know we're offline. */\n      waitSeconds *= 2;\n    }\n    let waitMillis;\n    if (cancelState === 1) {\n      cancelState = 2;\n      waitMillis = 0;\n    } else {\n      waitMillis = (waitSeconds + Math.random()) * 1000;\n    }\n    callWithDelay(waitMillis);\n  }\n  let stopped = false;\n\n  function stop(wasTimeout: boolean): void {\n    if (stopped) {\n      return;\n    }\n    stopped = true;\n    clearGlobalTimeout();\n    if (triggeredCallback) {\n      return;\n    }\n    if (retryTimeoutId !== null) {\n      if (!wasTimeout) {\n        cancelState = 2;\n      }\n      clearTimeout(retryTimeoutId);\n      callWithDelay(0);\n    } else {\n      if (!wasTimeout) {\n        cancelState = 1;\n      }\n    }\n  }\n  callWithDelay(0);\n  globalTimeoutId = setTimeout(() => {\n    hitTimeout = true;\n    stop(true);\n  }, timeout);\n  return stop;\n}\n\n/**\n * Stops the retry loop from repeating.\n * If the function is currently \"in between\" retries, it is invoked immediately\n * with the second parameter as \"true\". Otherwise, it will be invoked once more\n * after the current invocation finishes iff the current invocation would have\n * triggered another retry.\n */\nexport function stop(id: id): void {\n  id(false);\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { invalidArgument } from './error';\n\nexport function isJustDef<T>(p: T | null | undefined): p is T | null {\n  return p !== void 0;\n}\n\n// eslint-disable-next-line @typescript-eslint/ban-types\nexport function isFunction(p: unknown): p is Function {\n  return typeof p === 'function';\n}\n\nexport function isNonArrayObject(p: unknown): boolean {\n  return typeof p === 'object' && !Array.isArray(p);\n}\n\nexport function isString(p: unknown): p is string {\n  return typeof p === 'string' || p instanceof String;\n}\n\nexport function isNativeBlob(p: unknown): p is Blob {\n  return isNativeBlobDefined() && p instanceof Blob;\n}\n\nexport function isNativeBlobDefined(): boolean {\n  return typeof Blob !== 'undefined';\n}\n\nexport function validateNumber(\n  argument: string,\n  minValue: number,\n  maxValue: number,\n  value: number\n): void {\n  if (value < minValue) {\n    throw invalidArgument(\n      `Invalid value for '${argument}'. Expected ${minValue} or greater.`\n    );\n  }\n  if (value > maxValue) {\n    throw invalidArgument(\n      `Invalid value for '${argument}'. Expected ${maxValue} or less.`\n    );\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Functions to create and manipulate URLs for the server API.\n */\nimport { UrlParams } from './requestinfo';\n\nexport function makeUrl(\n  urlPart: string,\n  host: string,\n  protocol: string\n): string {\n  let origin = host;\n  if (protocol == null) {\n    origin = `https://${host}`;\n  }\n  return `${protocol}://${origin}/v0${urlPart}`;\n}\n\nexport function makeQueryString(params: UrlParams): string {\n  const encode = encodeURIComponent;\n  let queryPart = '?';\n  for (const key in params) {\n    if (params.hasOwnProperty(key)) {\n      const nextPart = encode(key) + '=' + encode(params[key]);\n      queryPart = queryPart + nextPart + '&';\n    }\n  }\n\n  // Chop off the extra '&' or '?' on the end\n  queryPart = queryPart.slice(0, -1);\n  return queryPart;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/** Network headers */\nexport type Headers = Record<string, string>;\n\n/** Response type exposed by the networking APIs. */\nexport type ConnectionType =\n  | string\n  | ArrayBuffer\n  | Blob\n  | ReadableStream<Uint8Array>;\n\n/**\n * A lightweight wrapper around XMLHttpRequest with a\n * goog.net.XhrIo-like interface.\n *\n * You can create a new connection by invoking `newTextConnection()`,\n * `newBytesConnection()` or `newStreamConnection()`.\n */\nexport interface Connection<T extends ConnectionType> {\n  /**\n   * Sends a request to the provided URL.\n   *\n   * This method never rejects its promise. In case of encountering an error,\n   * it sets an error code internally which can be accessed by calling\n   * getErrorCode() by callers.\n   */\n  send(\n    url: string,\n    method: string,\n    isUsingEmulator: boolean,\n    body?: ArrayBufferView | Blob | string | null,\n    headers?: Headers\n  ): Promise<void>;\n\n  getErrorCode(): ErrorCode;\n\n  getStatus(): number;\n\n  getResponse(): T;\n\n  getErrorText(): string;\n\n  /**\n   * Abort the request.\n   */\n  abort(): void;\n\n  getResponseHeader(header: string): string | null;\n\n  addUploadProgressListener(listener: (p1: ProgressEvent) => void): void;\n\n  removeUploadProgressListener(listener: (p1: ProgressEvent) => void): void;\n}\n\n/**\n * Error codes for requests made by the XhrIo wrapper.\n */\nexport enum ErrorCode {\n  NO_ERROR = 0,\n  NETWORK_ERROR = 1,\n  ABORT = 2\n}\n","/**\n * @license\n * Copyright 2022 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * Checks the status code to see if the action should be retried.\n *\n * @param status Current HTTP status code returned by server.\n * @param additionalRetryCodes additional retry codes to check against\n */\nexport function isRetryStatusCode(\n  status: number,\n  additionalRetryCodes: number[]\n): boolean {\n  // The codes for which to retry came from this page:\n  // https://cloud.google.com/storage/docs/exponential-backoff\n  const isFiveHundredCode = status >= 500 && status < 600;\n  const extraRetryCodes = [\n    // Request Timeout: web server didn't receive full request in time.\n    408,\n    // Too Many Requests: you're getting rate-limited, basically.\n    429\n  ];\n  const isExtraRetryCode = extraRetryCodes.indexOf(status) !== -1;\n  const isAdditionalRetryCode = additionalRetryCodes.indexOf(status) !== -1;\n  return isFiveHundredCode || isExtraRetryCode || isAdditionalRetryCode;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Defines methods used to actually send HTTP requests from\n * abstract representations.\n */\n\nimport { id as backoffId, start, stop } from './backoff';\nimport { appDeleted, canceled, retryLimitExceeded, unknown } from './error';\nimport { ErrorHandler, RequestHandler, RequestInfo } from './requestinfo';\nimport { isJustDef } from './type';\nimport { makeQueryString } from './url';\nimport { Connection, ErrorCode, Headers, ConnectionType } from './connection';\nimport { isRetryStatusCode } from './utils';\n\nexport interface Request<T> {\n  getPromise(): Promise<T>;\n\n  /**\n   * Cancels the request. IMPORTANT: the promise may still be resolved with an\n   * appropriate value (if the request is finished before you call this method,\n   * but the promise has not yet been resolved), so don't just assume it will be\n   * rejected if you call this function.\n   * @param appDelete - True if the cancelation came from the app being deleted.\n   */\n  cancel(appDelete?: boolean): void;\n}\n\n/**\n * Handles network logic for all Storage Requests, including error reporting and\n * retries with backoff.\n *\n * @param I - the type of the backend's network response.\n * @param - O the output type used by the rest of the SDK. The conversion\n * happens in the specified `callback_`.\n */\nclass NetworkRequest<I extends ConnectionType, O> implements Request<O> {\n  private pendingConnection_: Connection<I> | null = null;\n  private backoffId_: backoffId | null = null;\n  private resolve_!: (value?: O | PromiseLike<O>) => void;\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  private reject_!: (reason?: any) => void;\n  private canceled_: boolean = false;\n  private appDelete_: boolean = false;\n  private promise_: Promise<O>;\n\n  constructor(\n    private url_: string,\n    private method_: string,\n    private headers_: Headers,\n    private body_: string | Blob | Uint8Array | null,\n    private successCodes_: number[],\n    private additionalRetryCodes_: number[],\n    private callback_: RequestHandler<I, O>,\n    private errorCallback_: ErrorHandler | null,\n    private timeout_: number,\n    private progressCallback_: ((p1: number, p2: number) => void) | null,\n    private connectionFactory_: () => Connection<I>,\n    private retry = true,\n    private isUsingEmulator = false\n  ) {\n    this.promise_ = new Promise((resolve, reject) => {\n      this.resolve_ = resolve as (value?: O | PromiseLike<O>) => void;\n      this.reject_ = reject;\n      this.start_();\n    });\n  }\n\n  /**\n   * Actually starts the retry loop.\n   */\n  private start_(): void {\n    const doTheRequest: (\n      backoffCallback: (success: boolean, ...p2: unknown[]) => void,\n      canceled: boolean\n    ) => void = (backoffCallback, canceled) => {\n      if (canceled) {\n        backoffCallback(false, new RequestEndStatus(false, null, true));\n        return;\n      }\n      const connection = this.connectionFactory_();\n      this.pendingConnection_ = connection;\n\n      const progressListener: (\n        progressEvent: ProgressEvent\n      ) => void = progressEvent => {\n        const loaded = progressEvent.loaded;\n        const total = progressEvent.lengthComputable ? progressEvent.total : -1;\n        if (this.progressCallback_ !== null) {\n          this.progressCallback_(loaded, total);\n        }\n      };\n      if (this.progressCallback_ !== null) {\n        connection.addUploadProgressListener(progressListener);\n      }\n\n      // connection.send() never rejects, so we don't need to have a error handler or use catch on the returned promise.\n      // eslint-disable-next-line @typescript-eslint/no-floating-promises\n      connection\n        .send(\n          this.url_,\n          this.method_,\n          this.isUsingEmulator,\n          this.body_,\n          this.headers_\n        )\n        .then(() => {\n          if (this.progressCallback_ !== null) {\n            connection.removeUploadProgressListener(progressListener);\n          }\n          this.pendingConnection_ = null;\n          const hitServer = connection.getErrorCode() === ErrorCode.NO_ERROR;\n          const status = connection.getStatus();\n          if (\n            !hitServer ||\n            (isRetryStatusCode(status, this.additionalRetryCodes_) &&\n              this.retry)\n          ) {\n            const wasCanceled = connection.getErrorCode() === ErrorCode.ABORT;\n            backoffCallback(\n              false,\n              new RequestEndStatus(false, null, wasCanceled)\n            );\n            return;\n          }\n          const successCode = this.successCodes_.indexOf(status) !== -1;\n          backoffCallback(true, new RequestEndStatus(successCode, connection));\n        });\n    };\n\n    /**\n     * @param requestWentThrough - True if the request eventually went\n     *     through, false if it hit the retry limit or was canceled.\n     */\n    const backoffDone: (\n      requestWentThrough: boolean,\n      status: RequestEndStatus<I>\n    ) => void = (requestWentThrough, status) => {\n      const resolve = this.resolve_;\n      const reject = this.reject_;\n      const connection = status.connection as Connection<I>;\n      if (status.wasSuccessCode) {\n        try {\n          const result = this.callback_(connection, connection.getResponse());\n          if (isJustDef(result)) {\n            resolve(result);\n          } else {\n            resolve();\n          }\n        } catch (e) {\n          reject(e);\n        }\n      } else {\n        if (connection !== null) {\n          const err = unknown();\n          err.serverResponse = connection.getErrorText();\n          if (this.errorCallback_) {\n            reject(this.errorCallback_(connection, err));\n          } else {\n            reject(err);\n          }\n        } else {\n          if (status.canceled) {\n            const err = this.appDelete_ ? appDeleted() : canceled();\n            reject(err);\n          } else {\n            const err = retryLimitExceeded();\n            reject(err);\n          }\n        }\n      }\n    };\n    if (this.canceled_) {\n      backoffDone(false, new RequestEndStatus(false, null, true));\n    } else {\n      this.backoffId_ = start(doTheRequest, backoffDone, this.timeout_);\n    }\n  }\n\n  /** @inheritDoc */\n  getPromise(): Promise<O> {\n    return this.promise_;\n  }\n\n  /** @inheritDoc */\n  cancel(appDelete?: boolean): void {\n    this.canceled_ = true;\n    this.appDelete_ = appDelete || false;\n    if (this.backoffId_ !== null) {\n      stop(this.backoffId_);\n    }\n    if (this.pendingConnection_ !== null) {\n      this.pendingConnection_.abort();\n    }\n  }\n}\n\n/**\n * A collection of information about the result of a network request.\n * @param opt_canceled - Defaults to false.\n */\nexport class RequestEndStatus<I extends ConnectionType> {\n  /**\n   * True if the request was canceled.\n   */\n  canceled: boolean;\n\n  constructor(\n    public wasSuccessCode: boolean,\n    public connection: Connection<I> | null,\n    canceled?: boolean\n  ) {\n    this.canceled = !!canceled;\n  }\n}\n\nexport function addAuthHeader_(\n  headers: Headers,\n  authToken: string | null\n): void {\n  if (authToken !== null && authToken.length > 0) {\n    headers['Authorization'] = 'Firebase ' + authToken;\n  }\n}\n\nexport function addVersionHeader_(\n  headers: Headers,\n  firebaseVersion?: string\n): void {\n  headers['X-Firebase-Storage-Version'] =\n    'webjs/' + (firebaseVersion ?? 'AppManager');\n}\n\nexport function addGmpidHeader_(headers: Headers, appId: string | null): void {\n  if (appId) {\n    headers['X-Firebase-GMPID'] = appId;\n  }\n}\n\nexport function addAppCheckHeader_(\n  headers: Headers,\n  appCheckToken: string | null\n): void {\n  if (appCheckToken !== null) {\n    headers['X-Firebase-AppCheck'] = appCheckToken;\n  }\n}\n\nexport function makeRequest<I extends ConnectionType, O>(\n  requestInfo: RequestInfo<I, O>,\n  appId: string | null,\n  authToken: string | null,\n  appCheckToken: string | null,\n  requestFactory: () => Connection<I>,\n  firebaseVersion?: string,\n  retry = true,\n  isUsingEmulator = false\n): Request<O> {\n  const queryPart = makeQueryString(requestInfo.urlParams);\n  const url = requestInfo.url + queryPart;\n  const headers = Object.assign({}, requestInfo.headers);\n  addGmpidHeader_(headers, appId);\n  addAuthHeader_(headers, authToken);\n  addVersionHeader_(headers, firebaseVersion);\n  addAppCheckHeader_(headers, appCheckToken);\n  return new NetworkRequest<I, O>(\n    url,\n    requestInfo.method,\n    headers,\n    requestInfo.body,\n    requestInfo.successCodes,\n    requestInfo.additionalRetryCodes,\n    requestInfo.handler,\n    requestInfo.errorHandler,\n    requestInfo.timeout,\n    requestInfo.progressCallback,\n    requestFactory,\n    retry,\n    isUsingEmulator\n  );\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * @fileoverview Some methods copied from goog.fs.\n * We don't include goog.fs because it pulls in a bunch of Deferred code that\n * bloats the size of the released binary.\n */\nimport { isNativeBlobDefined } from './type';\nimport { StorageErrorCode, StorageError } from './error';\n\nfunction getBlobBuilder(): typeof IBlobBuilder | undefined {\n  if (typeof BlobBuilder !== 'undefined') {\n    return BlobBuilder;\n  } else if (typeof WebKitBlobBuilder !== 'undefined') {\n    return WebKitBlobBuilder;\n  } else {\n    return undefined;\n  }\n}\n\n/**\n * Concatenates one or more values together and converts them to a Blob.\n *\n * @param args The values that will make up the resulting blob.\n * @return The blob.\n */\nexport function getBlob(...args: Array<string | Blob | ArrayBuffer>): Blob {\n  const BlobBuilder = getBlobBuilder();\n  if (BlobBuilder !== undefined) {\n    const bb = new BlobBuilder();\n    for (let i = 0; i < args.length; i++) {\n      bb.append(args[i]);\n    }\n    return bb.getBlob();\n  } else {\n    if (isNativeBlobDefined()) {\n      return new Blob(args);\n    } else {\n      throw new StorageError(\n        StorageErrorCode.UNSUPPORTED_ENVIRONMENT,\n        \"This browser doesn't seem to support creating Blobs\"\n      );\n    }\n  }\n}\n\n/**\n * Slices the blob. The returned blob contains data from the start byte\n * (inclusive) till the end byte (exclusive). Negative indices cannot be used.\n *\n * @param blob The blob to be sliced.\n * @param start Index of the starting byte.\n * @param end Index of the ending byte.\n * @return The blob slice or null if not supported.\n */\nexport function sliceBlob(blob: Blob, start: number, end: number): Blob | null {\n  if (blob.webkitSlice) {\n    return blob.webkitSlice(start, end);\n  } else if (blob.mozSlice) {\n    return blob.mozSlice(start, end);\n  } else if (blob.slice) {\n    return blob.slice(start, end);\n  }\n  return null;\n}\n","/**\n * @license\n * Copyright 2021 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { TextDecoder } from 'util';\nimport { invalidFormat } from '../../implementation/error';\n\n/** Converts a Base64 encoded string to a binary string. */\nexport function decodeBase64(encoded: string): string {\n  // Node actually doesn't validate base64 strings.\n  // A quick sanity check that is not a fool-proof validation\n  if (/[^-A-Za-z0-9+/=]/.test(encoded)) {\n    throw invalidFormat('base64', 'Invalid character found');\n  }\n  return Buffer.from(encoded, 'base64').toString('binary');\n}\n\nexport function decodeUint8Array(data: Uint8Array): string {\n  return new TextDecoder().decode(data);\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { unknown, invalidFormat } from './error';\nimport { decodeBase64 } from '../platform/base64';\n\n/**\n * An enumeration of the possible string formats for upload.\n * @public\n */\nexport type StringFormat = (typeof StringFormat)[keyof typeof StringFormat];\n/**\n * An enumeration of the possible string formats for upload.\n * @public\n */\nexport const StringFormat = {\n  /**\n   * Indicates the string should be interpreted \"raw\", that is, as normal text.\n   * The string will be interpreted as UTF-16, then uploaded as a UTF-8 byte\n   * sequence.\n   * Example: The string 'Hello! \\\\ud83d\\\\ude0a' becomes the byte sequence\n   * 48 65 6c 6c 6f 21 20 f0 9f 98 8a\n   */\n  RAW: 'raw',\n  /**\n   * Indicates the string should be interpreted as base64-encoded data.\n   * Padding characters (trailing '='s) are optional.\n   * Example: The string 'rWmO++E6t7/rlw==' becomes the byte sequence\n   * ad 69 8e fb e1 3a b7 bf eb 97\n   */\n  BASE64: 'base64',\n  /**\n   * Indicates the string should be interpreted as base64url-encoded data.\n   * Padding characters (trailing '='s) are optional.\n   * Example: The string 'rWmO--E6t7_rlw==' becomes the byte sequence\n   * ad 69 8e fb e1 3a b7 bf eb 97\n   */\n  BASE64URL: 'base64url',\n  /**\n   * Indicates the string is a data URL, such as one obtained from\n   * canvas.toDataURL().\n   * Example: the string 'data:application/octet-stream;base64,aaaa'\n   * becomes the byte sequence\n   * 69 a6 9a\n   * (the content-type \"application/octet-stream\" is also applied, but can\n   * be overridden in the metadata object).\n   */\n  DATA_URL: 'data_url'\n} as const;\n\nexport class StringData {\n  contentType: string | null;\n\n  constructor(public data: Uint8Array, contentType?: string | null) {\n    this.contentType = contentType || null;\n  }\n}\n\n/**\n * @internal\n */\nexport function dataFromString(\n  format: StringFormat,\n  stringData: string\n): StringData {\n  switch (format) {\n    case StringFormat.RAW:\n      return new StringData(utf8Bytes_(stringData));\n    case StringFormat.BASE64:\n    case StringFormat.BASE64URL:\n      return new StringData(base64Bytes_(format, stringData));\n    case StringFormat.DATA_URL:\n      return new StringData(\n        dataURLBytes_(stringData),\n        dataURLContentType_(stringData)\n      );\n    default:\n    // do nothing\n  }\n\n  // assert(false);\n  throw unknown();\n}\n\nexport function utf8Bytes_(value: string): Uint8Array {\n  const b: number[] = [];\n  for (let i = 0; i < value.length; i++) {\n    let c = value.charCodeAt(i);\n    if (c <= 127) {\n      b.push(c);\n    } else {\n      if (c <= 2047) {\n        b.push(192 | (c >> 6), 128 | (c & 63));\n      } else {\n        if ((c & 64512) === 55296) {\n          // The start of a surrogate pair.\n          const valid =\n            i < value.length - 1 && (value.charCodeAt(i + 1) & 64512) === 56320;\n          if (!valid) {\n            // The second surrogate wasn't there.\n            b.push(239, 191, 189);\n          } else {\n            const hi = c;\n            const lo = value.charCodeAt(++i);\n            c = 65536 | ((hi & 1023) << 10) | (lo & 1023);\n            b.push(\n              240 | (c >> 18),\n              128 | ((c >> 12) & 63),\n              128 | ((c >> 6) & 63),\n              128 | (c & 63)\n            );\n          }\n        } else {\n          if ((c & 64512) === 56320) {\n            // Invalid low surrogate.\n            b.push(239, 191, 189);\n          } else {\n            b.push(224 | (c >> 12), 128 | ((c >> 6) & 63), 128 | (c & 63));\n          }\n        }\n      }\n    }\n  }\n  return new Uint8Array(b);\n}\n\nexport function percentEncodedBytes_(value: string): Uint8Array {\n  let decoded;\n  try {\n    decoded = decodeURIComponent(value);\n  } catch (e) {\n    throw invalidFormat(StringFormat.DATA_URL, 'Malformed data URL.');\n  }\n  return utf8Bytes_(decoded);\n}\n\nexport function base64Bytes_(format: StringFormat, value: string): Uint8Array {\n  switch (format) {\n    case StringFormat.BASE64: {\n      const hasMinus = value.indexOf('-') !== -1;\n      const hasUnder = value.indexOf('_') !== -1;\n      if (hasMinus || hasUnder) {\n        const invalidChar = hasMinus ? '-' : '_';\n        throw invalidFormat(\n          format,\n          \"Invalid character '\" +\n            invalidChar +\n            \"' found: is it base64url encoded?\"\n        );\n      }\n      break;\n    }\n    case StringFormat.BASE64URL: {\n      const hasPlus = value.indexOf('+') !== -1;\n      const hasSlash = value.indexOf('/') !== -1;\n      if (hasPlus || hasSlash) {\n        const invalidChar = hasPlus ? '+' : '/';\n        throw invalidFormat(\n          format,\n          \"Invalid character '\" + invalidChar + \"' found: is it base64 encoded?\"\n        );\n      }\n      value = value.replace(/-/g, '+').replace(/_/g, '/');\n      break;\n    }\n    default:\n    // do nothing\n  }\n  let bytes;\n  try {\n    bytes = decodeBase64(value);\n  } catch (e) {\n    if ((e as Error).message.includes('polyfill')) {\n      throw e;\n    }\n    throw invalidFormat(format, 'Invalid character found');\n  }\n  const array = new Uint8Array(bytes.length);\n  for (let i = 0; i < bytes.length; i++) {\n    array[i] = bytes.charCodeAt(i);\n  }\n  return array;\n}\n\nclass DataURLParts {\n  base64: boolean = false;\n  contentType: string | null = null;\n  rest: string;\n\n  constructor(dataURL: string) {\n    const matches = dataURL.match(/^data:([^,]+)?,/);\n    if (matches === null) {\n      throw invalidFormat(\n        StringFormat.DATA_URL,\n        \"Must be formatted 'data:[<mediatype>][;base64],<data>\"\n      );\n    }\n    const middle = matches[1] || null;\n    if (middle != null) {\n      this.base64 = endsWith(middle, ';base64');\n      this.contentType = this.base64\n        ? middle.substring(0, middle.length - ';base64'.length)\n        : middle;\n    }\n    this.rest = dataURL.substring(dataURL.indexOf(',') + 1);\n  }\n}\n\nexport function dataURLBytes_(dataUrl: string): Uint8Array {\n  const parts = new DataURLParts(dataUrl);\n  if (parts.base64) {\n    return base64Bytes_(StringFormat.BASE64, parts.rest);\n  } else {\n    return percentEncodedBytes_(parts.rest);\n  }\n}\n\nexport function dataURLContentType_(dataUrl: string): string | null {\n  const parts = new DataURLParts(dataUrl);\n  return parts.contentType;\n}\n\nfunction endsWith(s: string, end: string): boolean {\n  const longEnough = s.length >= end.length;\n  if (!longEnough) {\n    return false;\n  }\n\n  return s.substring(s.length - end.length) === end;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @file Provides a Blob-like wrapper for various binary types (including the\n * native Blob type). This makes it possible to upload types like ArrayBuffers,\n * making uploads possible in environments without the native Blob type.\n */\nimport { sliceBlob, getBlob } from './fs';\nimport { StringFormat, dataFromString } from './string';\nimport { isNativeBlob, isNativeBlobDefined, isString } from './type';\n\n/**\n * @param opt_elideCopy - If true, doesn't copy mutable input data\n *     (e.g. Uint8Arrays). Pass true only if you know the objects will not be\n *     modified after this blob's construction.\n *\n * @internal\n */\nexport class FbsBlob {\n  private data_!: Blob | Uint8Array;\n  private size_: number;\n  private type_: string;\n\n  constructor(data: Blob | Uint8Array | ArrayBuffer, elideCopy?: boolean) {\n    let size: number = 0;\n    let blobType: string = '';\n    if (isNativeBlob(data)) {\n      this.data_ = data as Blob;\n      size = (data as Blob).size;\n      blobType = (data as Blob).type;\n    } else if (data instanceof ArrayBuffer) {\n      if (elideCopy) {\n        this.data_ = new Uint8Array(data);\n      } else {\n        this.data_ = new Uint8Array(data.byteLength);\n        this.data_.set(new Uint8Array(data));\n      }\n      size = this.data_.length;\n    } else if (data instanceof Uint8Array) {\n      if (elideCopy) {\n        this.data_ = data as Uint8Array;\n      } else {\n        this.data_ = new Uint8Array(data.length);\n        this.data_.set(data as Uint8Array);\n      }\n      size = data.length;\n    }\n    this.size_ = size;\n    this.type_ = blobType;\n  }\n\n  size(): number {\n    return this.size_;\n  }\n\n  type(): string {\n    return this.type_;\n  }\n\n  slice(startByte: number, endByte: number): FbsBlob | null {\n    if (isNativeBlob(this.data_)) {\n      const realBlob = this.data_ as Blob;\n      const sliced = sliceBlob(realBlob, startByte, endByte);\n      if (sliced === null) {\n        return null;\n      }\n      return new FbsBlob(sliced);\n    } else {\n      const slice = new Uint8Array(\n        (this.data_ as Uint8Array).buffer,\n        startByte,\n        endByte - startByte\n      );\n      return new FbsBlob(slice, true);\n    }\n  }\n\n  static getBlob(...args: Array<string | FbsBlob>): FbsBlob | null {\n    if (isNativeBlobDefined()) {\n      const blobby: Array<Blob | Uint8Array | string> = args.map(\n        (val: string | FbsBlob): Blob | Uint8Array | string => {\n          if (val instanceof FbsBlob) {\n            return val.data_;\n          } else {\n            return val;\n          }\n        }\n      );\n      return new FbsBlob(getBlob.apply(null, blobby));\n    } else {\n      const uint8Arrays: Uint8Array[] = args.map(\n        (val: string | FbsBlob): Uint8Array => {\n          if (isString(val)) {\n            return dataFromString(StringFormat.RAW, val as string).data;\n          } else {\n            // Blobs don't exist, so this has to be a Uint8Array.\n            return (val as FbsBlob).data_ as Uint8Array;\n          }\n        }\n      );\n      let finalLength = 0;\n      uint8Arrays.forEach((array: Uint8Array): void => {\n        finalLength += array.byteLength;\n      });\n      const merged = new Uint8Array(finalLength);\n      let index = 0;\n      uint8Arrays.forEach((array: Uint8Array) => {\n        for (let i = 0; i < array.length; i++) {\n          merged[index++] = array[i];\n        }\n      });\n      return new FbsBlob(merged, true);\n    }\n  }\n\n  uploadData(): Blob | Uint8Array {\n    return this.data_;\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport { isNonArrayObject } from './type';\n\n/**\n * Returns the Object resulting from parsing the given JSON, or null if the\n * given string does not represent a JSON object.\n */\nexport function jsonObjectOrNull(\n  s: string\n): { [name: string]: unknown } | null {\n  let obj;\n  try {\n    obj = JSON.parse(s);\n  } catch (e) {\n    return null;\n  }\n  if (isNonArrayObject(obj)) {\n    return obj;\n  } else {\n    return null;\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Contains helper methods for manipulating paths.\n */\n\n/**\n * @return Null if the path is already at the root.\n */\nexport function parent(path: string): string | null {\n  if (path.length === 0) {\n    return null;\n  }\n  const index = path.lastIndexOf('/');\n  if (index === -1) {\n    return '';\n  }\n  const newPath = path.slice(0, index);\n  return newPath;\n}\n\nexport function child(path: string, childPath: string): string {\n  const canonicalChildPath = childPath\n    .split('/')\n    .filter(component => component.length > 0)\n    .join('/');\n  if (path.length === 0) {\n    return canonicalChildPath;\n  } else {\n    return path + '/' + canonicalChildPath;\n  }\n}\n\n/**\n * Returns the last component of a path.\n * '/foo/bar' -> 'bar'\n * '/foo/bar/baz/' -> 'baz/'\n * '/a' -> 'a'\n */\nexport function lastComponent(path: string): string {\n  const index = path.lastIndexOf('/', path.length - 2);\n  if (index === -1) {\n    return path;\n  } else {\n    return path.slice(index + 1);\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Documentation for the metadata format\n */\nimport { Metadata } from '../metadata';\n\nimport { jsonObjectOrNull } from './json';\nimport { Location } from './location';\nimport { lastComponent } from './path';\nimport { isString } from './type';\nimport { makeUrl, makeQueryString } from './url';\nimport { Reference } from '../reference';\nimport { FirebaseStorageImpl } from '../service';\n\nexport function noXform_<T>(metadata: Metadata, value: T): T {\n  return value;\n}\n\nclass Mapping<T> {\n  local: string;\n  writable: boolean;\n  xform: (p1: Metadata, p2?: T) => T | undefined;\n\n  constructor(\n    public server: string,\n    local?: string | null,\n    writable?: boolean,\n    xform?: ((p1: Metadata, p2?: T) => T | undefined) | null\n  ) {\n    this.local = local || server;\n    this.writable = !!writable;\n    this.xform = xform || noXform_;\n  }\n}\ntype Mappings = Array<Mapping<string> | Mapping<number>>;\n\nexport { Mappings };\n\nlet mappings_: Mappings | null = null;\n\nexport function xformPath(fullPath: string | undefined): string | undefined {\n  if (!isString(fullPath) || fullPath.length < 2) {\n    return fullPath;\n  } else {\n    return lastComponent(fullPath);\n  }\n}\n\nexport function getMappings(): Mappings {\n  if (mappings_) {\n    return mappings_;\n  }\n  const mappings: Mappings = [];\n  mappings.push(new Mapping<string>('bucket'));\n  mappings.push(new Mapping<string>('generation'));\n  mappings.push(new Mapping<string>('metageneration'));\n  mappings.push(new Mapping<string>('name', 'fullPath', true));\n\n  function mappingsXformPath(\n    _metadata: Metadata,\n    fullPath: string | undefined\n  ): string | undefined {\n    return xformPath(fullPath);\n  }\n  const nameMapping = new Mapping<string>('name');\n  nameMapping.xform = mappingsXformPath;\n  mappings.push(nameMapping);\n\n  /**\n   * Coerces the second param to a number, if it is defined.\n   */\n  function xformSize(\n    _metadata: Metadata,\n    size?: number | string\n  ): number | undefined {\n    if (size !== undefined) {\n      return Number(size);\n    } else {\n      return size;\n    }\n  }\n  const sizeMapping = new Mapping<number>('size');\n  sizeMapping.xform = xformSize;\n  mappings.push(sizeMapping);\n  mappings.push(new Mapping<number>('timeCreated'));\n  mappings.push(new Mapping<string>('updated'));\n  mappings.push(new Mapping<string>('md5Hash', null, true));\n  mappings.push(new Mapping<string>('cacheControl', null, true));\n  mappings.push(new Mapping<string>('contentDisposition', null, true));\n  mappings.push(new Mapping<string>('contentEncoding', null, true));\n  mappings.push(new Mapping<string>('contentLanguage', null, true));\n  mappings.push(new Mapping<string>('contentType', null, true));\n  mappings.push(new Mapping<string>('metadata', 'customMetadata', true));\n  mappings_ = mappings;\n  return mappings_;\n}\n\nexport function addRef(metadata: Metadata, service: FirebaseStorageImpl): void {\n  function generateRef(): Reference {\n    const bucket: string = metadata['bucket'] as string;\n    const path: string = metadata['fullPath'] as string;\n    const loc = new Location(bucket, path);\n    return service._makeStorageReference(loc);\n  }\n  Object.defineProperty(metadata, 'ref', { get: generateRef });\n}\n\nexport function fromResource(\n  service: FirebaseStorageImpl,\n  resource: { [name: string]: unknown },\n  mappings: Mappings\n): Metadata {\n  const metadata: Metadata = {} as Metadata;\n  metadata['type'] = 'file';\n  const len = mappings.length;\n  for (let i = 0; i < len; i++) {\n    const mapping = mappings[i];\n    metadata[mapping.local] = (mapping as Mapping<unknown>).xform(\n      metadata,\n      resource[mapping.server]\n    );\n  }\n  addRef(metadata, service);\n  return metadata;\n}\n\nexport function fromResourceString(\n  service: FirebaseStorageImpl,\n  resourceString: string,\n  mappings: Mappings\n): Metadata | null {\n  const obj = jsonObjectOrNull(resourceString);\n  if (obj === null) {\n    return null;\n  }\n  const resource = obj as Metadata;\n  return fromResource(service, resource, mappings);\n}\n\nexport function downloadUrlFromResourceString(\n  metadata: Metadata,\n  resourceString: string,\n  host: string,\n  protocol: string\n): string | null {\n  const obj = jsonObjectOrNull(resourceString);\n  if (obj === null) {\n    return null;\n  }\n  if (!isString(obj['downloadTokens'])) {\n    // This can happen if objects are uploaded through GCS and retrieved\n    // through list, so we don't want to throw an Error.\n    return null;\n  }\n  const tokens: string = obj['downloadTokens'] as string;\n  if (tokens.length === 0) {\n    return null;\n  }\n  const encode = encodeURIComponent;\n  const tokensList = tokens.split(',');\n  const urls = tokensList.map((token: string): string => {\n    const bucket: string = metadata['bucket'] as string;\n    const path: string = metadata['fullPath'] as string;\n    const urlPart = '/b/' + encode(bucket) + '/o/' + encode(path);\n    const base = makeUrl(urlPart, host, protocol);\n    const queryString = makeQueryString({\n      alt: 'media',\n      token\n    });\n    return base + queryString;\n  });\n  return urls[0];\n}\n\nexport function toResourceString(\n  metadata: Partial<Metadata>,\n  mappings: Mappings\n): string {\n  const resource: {\n    [prop: string]: unknown;\n  } = {};\n  const len = mappings.length;\n  for (let i = 0; i < len; i++) {\n    const mapping = mappings[i];\n    if (mapping.writable) {\n      resource[mapping.server] = metadata[mapping.local];\n    }\n  }\n  return JSON.stringify(resource);\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Documentation for the listOptions and listResult format\n */\nimport { Location } from './location';\nimport { jsonObjectOrNull } from './json';\nimport { ListResult } from '../list';\nimport { FirebaseStorageImpl } from '../service';\n\n/**\n * Represents the simplified object metadata returned by List API.\n * Other fields are filtered because list in Firebase Rules does not grant\n * the permission to read the metadata.\n */\ninterface ListMetadataResponse {\n  name: string;\n  bucket: string;\n}\n\n/**\n * Represents the JSON response of List API.\n */\ninterface ListResultResponse {\n  prefixes: string[];\n  items: ListMetadataResponse[];\n  nextPageToken?: string;\n}\n\nconst PREFIXES_KEY = 'prefixes';\nconst ITEMS_KEY = 'items';\n\nfunction fromBackendResponse(\n  service: FirebaseStorageImpl,\n  bucket: string,\n  resource: ListResultResponse\n): ListResult {\n  const listResult: ListResult = {\n    prefixes: [],\n    items: [],\n    nextPageToken: resource['nextPageToken']\n  };\n  if (resource[PREFIXES_KEY]) {\n    for (const path of resource[PREFIXES_KEY]) {\n      const pathWithoutTrailingSlash = path.replace(/\\/$/, '');\n      const reference = service._makeStorageReference(\n        new Location(bucket, pathWithoutTrailingSlash)\n      );\n      listResult.prefixes.push(reference);\n    }\n  }\n\n  if (resource[ITEMS_KEY]) {\n    for (const item of resource[ITEMS_KEY]) {\n      const reference = service._makeStorageReference(\n        new Location(bucket, item['name'])\n      );\n      listResult.items.push(reference);\n    }\n  }\n  return listResult;\n}\n\nexport function fromResponseString(\n  service: FirebaseStorageImpl,\n  bucket: string,\n  resourceString: string\n): ListResult | null {\n  const obj = jsonObjectOrNull(resourceString);\n  if (obj === null) {\n    return null;\n  }\n  const resource = obj as unknown as ListResultResponse;\n  return fromBackendResponse(service, bucket, resource);\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport { StorageError } from './error';\nimport { Headers, Connection, ConnectionType } from './connection';\n\n/**\n * Type for url params stored in RequestInfo.\n */\nexport interface UrlParams {\n  [name: string]: string | number;\n}\n\n/**\n * A function that converts a server response to the API type expected by the\n * SDK.\n *\n * @param I - the type of the backend's network response\n * @param O - the output response type used by the rest of the SDK.\n */\nexport type RequestHandler<I extends ConnectionType, O> = (\n  connection: Connection<I>,\n  response: I\n) => O;\n\n/** A function to handle an error. */\nexport type ErrorHandler = (\n  connection: Connection<ConnectionType>,\n  response: StorageError\n) => StorageError;\n\n/**\n * Contains a fully specified request.\n *\n * @param I - the type of the backend's network response.\n * @param O - the output response type used by the rest of the SDK.\n */\nexport class RequestInfo<I extends ConnectionType, O> {\n  urlParams: UrlParams = {};\n  headers: Headers = {};\n  body: Blob | string | Uint8Array | null = null;\n  errorHandler: ErrorHandler | null = null;\n\n  /**\n   * Called with the current number of bytes uploaded and total size (-1 if not\n   * computable) of the request body (i.e. used to report upload progress).\n   */\n  progressCallback: ((p1: number, p2: number) => void) | null = null;\n  successCodes: number[] = [200];\n  additionalRetryCodes: number[] = [];\n\n  constructor(\n    public url: string,\n    public method: string,\n    /**\n     * Returns the value with which to resolve the request's promise. Only called\n     * if the request is successful. Throw from this function to reject the\n     * returned Request's promise with the thrown error.\n     * Note: The XhrIo passed to this function may be reused after this callback\n     * returns. Do not keep a reference to it in any way.\n     */\n    public handler: RequestHandler<I, O>,\n    public timeout: number\n  ) {}\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Defines methods for interacting with the network.\n */\n\nimport { Metadata } from '../metadata';\nimport { ListResult } from '../list';\nimport { FbsBlob } from './blob';\nimport {\n  StorageError,\n  cannotSliceBlob,\n  unauthenticated,\n  quotaExceeded,\n  unauthorized,\n  objectNotFound,\n  serverFileWrongSize,\n  unknown,\n  unauthorizedApp\n} from './error';\nimport { Location } from './location';\nimport {\n  Mappings,\n  fromResourceString,\n  downloadUrlFromResourceString,\n  toResourceString\n} from './metadata';\nimport { fromResponseString } from './list';\nimport { RequestInfo, UrlParams } from './requestinfo';\nimport { isString } from './type';\nimport { makeUrl } from './url';\nimport { Connection, ConnectionType } from './connection';\nimport { FirebaseStorageImpl } from '../service';\n\n/**\n * Throws the UNKNOWN StorageError if cndn is false.\n */\nexport function handlerCheck(cndn: boolean): void {\n  if (!cndn) {\n    throw unknown();\n  }\n}\n\nexport function metadataHandler(\n  service: FirebaseStorageImpl,\n  mappings: Mappings\n): (p1: Connection<string>, p2: string) => Metadata {\n  function handler(xhr: Connection<string>, text: string): Metadata {\n    const metadata = fromResourceString(service, text, mappings);\n    handlerCheck(metadata !== null);\n    return metadata as Metadata;\n  }\n  return handler;\n}\n\nexport function listHandler(\n  service: FirebaseStorageImpl,\n  bucket: string\n): (p1: Connection<string>, p2: string) => ListResult {\n  function handler(xhr: Connection<string>, text: string): ListResult {\n    const listResult = fromResponseString(service, bucket, text);\n    handlerCheck(listResult !== null);\n    return listResult as ListResult;\n  }\n  return handler;\n}\n\nexport function downloadUrlHandler(\n  service: FirebaseStorageImpl,\n  mappings: Mappings\n): (p1: Connection<string>, p2: string) => string | null {\n  function handler(xhr: Connection<string>, text: string): string | null {\n    const metadata = fromResourceString(service, text, mappings);\n    handlerCheck(metadata !== null);\n    return downloadUrlFromResourceString(\n      metadata as Metadata,\n      text,\n      service.host,\n      service._protocol\n    );\n  }\n  return handler;\n}\n\nexport function sharedErrorHandler(\n  location: Location\n): (p1: Connection<ConnectionType>, p2: StorageError) => StorageError {\n  function errorHandler(\n    xhr: Connection<ConnectionType>,\n    err: StorageError\n  ): StorageError {\n    let newErr: StorageError;\n    if (xhr.getStatus() === 401) {\n      if (\n        // This exact message string is the only consistent part of the\n        // server's error response that identifies it as an App Check error.\n        xhr.getErrorText().includes('Firebase App Check token is invalid')\n      ) {\n        newErr = unauthorizedApp();\n      } else {\n        newErr = unauthenticated();\n      }\n    } else {\n      if (xhr.getStatus() === 402) {\n        newErr = quotaExceeded(location.bucket);\n      } else {\n        if (xhr.getStatus() === 403) {\n          newErr = unauthorized(location.path);\n        } else {\n          newErr = err;\n        }\n      }\n    }\n    newErr.status = xhr.getStatus();\n    newErr.serverResponse = err.serverResponse;\n    return newErr;\n  }\n  return errorHandler;\n}\n\nexport function objectErrorHandler(\n  location: Location\n): (p1: Connection<ConnectionType>, p2: StorageError) => StorageError {\n  const shared = sharedErrorHandler(location);\n\n  function errorHandler(\n    xhr: Connection<ConnectionType>,\n    err: StorageError\n  ): StorageError {\n    let newErr = shared(xhr, err);\n    if (xhr.getStatus() === 404) {\n      newErr = objectNotFound(location.path);\n    }\n    newErr.serverResponse = err.serverResponse;\n    return newErr;\n  }\n  return errorHandler;\n}\n\nexport function getMetadata(\n  service: FirebaseStorageImpl,\n  location: Location,\n  mappings: Mappings\n): RequestInfo<string, Metadata> {\n  const urlPart = location.fullServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'GET';\n  const timeout = service.maxOperationRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    metadataHandler(service, mappings),\n    timeout\n  );\n  requestInfo.errorHandler = objectErrorHandler(location);\n  return requestInfo;\n}\n\nexport function list(\n  service: FirebaseStorageImpl,\n  location: Location,\n  delimiter?: string,\n  pageToken?: string | null,\n  maxResults?: number | null\n): RequestInfo<string, ListResult> {\n  const urlParams: UrlParams = {};\n  if (location.isRoot) {\n    urlParams['prefix'] = '';\n  } else {\n    urlParams['prefix'] = location.path + '/';\n  }\n  if (delimiter && delimiter.length > 0) {\n    urlParams['delimiter'] = delimiter;\n  }\n  if (pageToken) {\n    urlParams['pageToken'] = pageToken;\n  }\n  if (maxResults) {\n    urlParams['maxResults'] = maxResults;\n  }\n  const urlPart = location.bucketOnlyServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'GET';\n  const timeout = service.maxOperationRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    listHandler(service, location.bucket),\n    timeout\n  );\n  requestInfo.urlParams = urlParams;\n  requestInfo.errorHandler = sharedErrorHandler(location);\n  return requestInfo;\n}\n\nexport function getBytes<I extends ConnectionType>(\n  service: FirebaseStorageImpl,\n  location: Location,\n  maxDownloadSizeBytes?: number\n): RequestInfo<I, I> {\n  const urlPart = location.fullServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol) + '?alt=media';\n  const method = 'GET';\n  const timeout = service.maxOperationRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    (_: Connection<I>, data: I) => data,\n    timeout\n  );\n  requestInfo.errorHandler = objectErrorHandler(location);\n  if (maxDownloadSizeBytes !== undefined) {\n    requestInfo.headers['Range'] = `bytes=0-${maxDownloadSizeBytes}`;\n    requestInfo.successCodes = [200 /* OK */, 206 /* Partial Content */];\n  }\n  return requestInfo;\n}\n\nexport function getDownloadUrl(\n  service: FirebaseStorageImpl,\n  location: Location,\n  mappings: Mappings\n): RequestInfo<string, string | null> {\n  const urlPart = location.fullServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'GET';\n  const timeout = service.maxOperationRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    downloadUrlHandler(service, mappings),\n    timeout\n  );\n  requestInfo.errorHandler = objectErrorHandler(location);\n  return requestInfo;\n}\n\nexport function updateMetadata(\n  service: FirebaseStorageImpl,\n  location: Location,\n  metadata: Partial<Metadata>,\n  mappings: Mappings\n): RequestInfo<string, Metadata> {\n  const urlPart = location.fullServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'PATCH';\n  const body = toResourceString(metadata, mappings);\n  const headers = { 'Content-Type': 'application/json; charset=utf-8' };\n  const timeout = service.maxOperationRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    metadataHandler(service, mappings),\n    timeout\n  );\n  requestInfo.headers = headers;\n  requestInfo.body = body;\n  requestInfo.errorHandler = objectErrorHandler(location);\n  return requestInfo;\n}\n\nexport function deleteObject(\n  service: FirebaseStorageImpl,\n  location: Location\n): RequestInfo<string, void> {\n  const urlPart = location.fullServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'DELETE';\n  const timeout = service.maxOperationRetryTime;\n\n  function handler(_xhr: Connection<string>, _text: string): void {}\n  const requestInfo = new RequestInfo(url, method, handler, timeout);\n  requestInfo.successCodes = [200, 204];\n  requestInfo.errorHandler = objectErrorHandler(location);\n  return requestInfo;\n}\n\nexport function determineContentType_(\n  metadata: Metadata | null,\n  blob: FbsBlob | null\n): string {\n  return (\n    (metadata && metadata['contentType']) ||\n    (blob && blob.type()) ||\n    'application/octet-stream'\n  );\n}\n\nexport function metadataForUpload_(\n  location: Location,\n  blob: FbsBlob,\n  metadata?: Metadata | null\n): Metadata {\n  const metadataClone = Object.assign({}, metadata);\n  metadataClone['fullPath'] = location.path;\n  metadataClone['size'] = blob.size();\n  if (!metadataClone['contentType']) {\n    metadataClone['contentType'] = determineContentType_(null, blob);\n  }\n  return metadataClone;\n}\n\n/**\n * Prepare RequestInfo for uploads as Content-Type: multipart.\n */\nexport function multipartUpload(\n  service: FirebaseStorageImpl,\n  location: Location,\n  mappings: Mappings,\n  blob: FbsBlob,\n  metadata?: Metadata | null\n): RequestInfo<string, Metadata> {\n  const urlPart = location.bucketOnlyServerUrl();\n  const headers: { [prop: string]: string } = {\n    'X-Goog-Upload-Protocol': 'multipart'\n  };\n\n  function genBoundary(): string {\n    let str = '';\n    for (let i = 0; i < 2; i++) {\n      str = str + Math.random().toString().slice(2);\n    }\n    return str;\n  }\n  const boundary = genBoundary();\n  headers['Content-Type'] = 'multipart/related; boundary=' + boundary;\n  const metadata_ = metadataForUpload_(location, blob, metadata);\n  const metadataString = toResourceString(metadata_, mappings);\n  const preBlobPart =\n    '--' +\n    boundary +\n    '\\r\\n' +\n    'Content-Type: application/json; charset=utf-8\\r\\n\\r\\n' +\n    metadataString +\n    '\\r\\n--' +\n    boundary +\n    '\\r\\n' +\n    'Content-Type: ' +\n    metadata_['contentType'] +\n    '\\r\\n\\r\\n';\n  const postBlobPart = '\\r\\n--' + boundary + '--';\n  const body = FbsBlob.getBlob(preBlobPart, blob, postBlobPart);\n  if (body === null) {\n    throw cannotSliceBlob();\n  }\n  const urlParams: UrlParams = { name: metadata_['fullPath']! };\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'POST';\n  const timeout = service.maxUploadRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    metadataHandler(service, mappings),\n    timeout\n  );\n  requestInfo.urlParams = urlParams;\n  requestInfo.headers = headers;\n  requestInfo.body = body.uploadData();\n  requestInfo.errorHandler = sharedErrorHandler(location);\n  return requestInfo;\n}\n\n/**\n * @param current The number of bytes that have been uploaded so far.\n * @param total The total number of bytes in the upload.\n * @param opt_finalized True if the server has finished the upload.\n * @param opt_metadata The upload metadata, should\n *     only be passed if opt_finalized is true.\n */\nexport class ResumableUploadStatus {\n  finalized: boolean;\n  metadata: Metadata | null;\n\n  constructor(\n    public current: number,\n    public total: number,\n    finalized?: boolean,\n    metadata?: Metadata | null\n  ) {\n    this.finalized = !!finalized;\n    this.metadata = metadata || null;\n  }\n}\n\nexport function checkResumeHeader_(\n  xhr: Connection<string>,\n  allowed?: string[]\n): string {\n  let status: string | null = null;\n  try {\n    status = xhr.getResponseHeader('X-Goog-Upload-Status');\n  } catch (e) {\n    handlerCheck(false);\n  }\n  const allowedStatus = allowed || ['active'];\n  handlerCheck(!!status && allowedStatus.indexOf(status) !== -1);\n  return status as string;\n}\n\nexport function createResumableUpload(\n  service: FirebaseStorageImpl,\n  location: Location,\n  mappings: Mappings,\n  blob: FbsBlob,\n  metadata?: Metadata | null\n): RequestInfo<string, string> {\n  const urlPart = location.bucketOnlyServerUrl();\n  const metadataForUpload = metadataForUpload_(location, blob, metadata);\n  const urlParams: UrlParams = { name: metadataForUpload['fullPath']! };\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'POST';\n  const headers = {\n    'X-Goog-Upload-Protocol': 'resumable',\n    'X-Goog-Upload-Command': 'start',\n    'X-Goog-Upload-Header-Content-Length': `${blob.size()}`,\n    'X-Goog-Upload-Header-Content-Type': metadataForUpload['contentType']!,\n    'Content-Type': 'application/json; charset=utf-8'\n  };\n  const body = toResourceString(metadataForUpload, mappings);\n  const timeout = service.maxUploadRetryTime;\n\n  function handler(xhr: Connection<string>): string {\n    checkResumeHeader_(xhr);\n    let url;\n    try {\n      url = xhr.getResponseHeader('X-Goog-Upload-URL');\n    } catch (e) {\n      handlerCheck(false);\n    }\n    handlerCheck(isString(url));\n    return url as string;\n  }\n  const requestInfo = new RequestInfo(url, method, handler, timeout);\n  requestInfo.urlParams = urlParams;\n  requestInfo.headers = headers;\n  requestInfo.body = body;\n  requestInfo.errorHandler = sharedErrorHandler(location);\n  return requestInfo;\n}\n\n/**\n * @param url From a call to fbs.requests.createResumableUpload.\n */\nexport function getResumableUploadStatus(\n  service: FirebaseStorageImpl,\n  location: Location,\n  url: string,\n  blob: FbsBlob\n): RequestInfo<string, ResumableUploadStatus> {\n  const headers = { 'X-Goog-Upload-Command': 'query' };\n\n  function handler(xhr: Connection<string>): ResumableUploadStatus {\n    const status = checkResumeHeader_(xhr, ['active', 'final']);\n    let sizeString: string | null = null;\n    try {\n      sizeString = xhr.getResponseHeader('X-Goog-Upload-Size-Received');\n    } catch (e) {\n      handlerCheck(false);\n    }\n\n    if (!sizeString) {\n      // null or empty string\n      handlerCheck(false);\n    }\n\n    const size = Number(sizeString);\n    handlerCheck(!isNaN(size));\n    return new ResumableUploadStatus(size, blob.size(), status === 'final');\n  }\n  const method = 'POST';\n  const timeout = service.maxUploadRetryTime;\n  const requestInfo = new RequestInfo(url, method, handler, timeout);\n  requestInfo.headers = headers;\n  requestInfo.errorHandler = sharedErrorHandler(location);\n  return requestInfo;\n}\n\n/**\n * Any uploads via the resumable upload API must transfer a number of bytes\n * that is a multiple of this number.\n */\nexport const RESUMABLE_UPLOAD_CHUNK_SIZE: number = 256 * 1024;\n\n/**\n * @param url From a call to fbs.requests.createResumableUpload.\n * @param chunkSize Number of bytes to upload.\n * @param status The previous status.\n *     If not passed or null, we start from the beginning.\n * @throws fbs.Error If the upload is already complete, the passed in status\n *     has a final size inconsistent with the blob, or the blob cannot be sliced\n *     for upload.\n */\nexport function continueResumableUpload(\n  location: Location,\n  service: FirebaseStorageImpl,\n  url: string,\n  blob: FbsBlob,\n  chunkSize: number,\n  mappings: Mappings,\n  status?: ResumableUploadStatus | null,\n  progressCallback?: ((p1: number, p2: number) => void) | null\n): RequestInfo<string, ResumableUploadStatus> {\n  // TODO(andysoto): standardize on internal asserts\n  // assert(!(opt_status && opt_status.finalized));\n  const status_ = new ResumableUploadStatus(0, 0);\n  if (status) {\n    status_.current = status.current;\n    status_.total = status.total;\n  } else {\n    status_.current = 0;\n    status_.total = blob.size();\n  }\n  if (blob.size() !== status_.total) {\n    throw serverFileWrongSize();\n  }\n  const bytesLeft = status_.total - status_.current;\n  let bytesToUpload = bytesLeft;\n  if (chunkSize > 0) {\n    bytesToUpload = Math.min(bytesToUpload, chunkSize);\n  }\n  const startByte = status_.current;\n  const endByte = startByte + bytesToUpload;\n  let uploadCommand = '';\n  if (bytesToUpload === 0) {\n    uploadCommand = 'finalize';\n  } else if (bytesLeft === bytesToUpload) {\n    uploadCommand = 'upload, finalize';\n  } else {\n    uploadCommand = 'upload';\n  }\n  const headers = {\n    'X-Goog-Upload-Command': uploadCommand,\n    'X-Goog-Upload-Offset': `${status_.current}`\n  };\n  const body = blob.slice(startByte, endByte);\n  if (body === null) {\n    throw cannotSliceBlob();\n  }\n\n  function handler(\n    xhr: Connection<string>,\n    text: string\n  ): ResumableUploadStatus {\n    // TODO(andysoto): Verify the MD5 of each uploaded range:\n    // the 'x-range-md5' header comes back with status code 308 responses.\n    // We'll only be able to bail out though, because you can't re-upload a\n    // range that you previously uploaded.\n    const uploadStatus = checkResumeHeader_(xhr, ['active', 'final']);\n    const newCurrent = status_.current + bytesToUpload;\n    const size = blob.size();\n    let metadata;\n    if (uploadStatus === 'final') {\n      metadata = metadataHandler(service, mappings)(xhr, text);\n    } else {\n      metadata = null;\n    }\n    return new ResumableUploadStatus(\n      newCurrent,\n      size,\n      uploadStatus === 'final',\n      metadata\n    );\n  }\n  const method = 'POST';\n  const timeout = service.maxUploadRetryTime;\n  const requestInfo = new RequestInfo(url, method, handler, timeout);\n  requestInfo.headers = headers;\n  requestInfo.body = body.uploadData();\n  requestInfo.progressCallback = progressCallback || null;\n  requestInfo.errorHandler = sharedErrorHandler(location);\n  return requestInfo;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Enumerations used for upload tasks.\n */\n\n/**\n * An event that is triggered on a task.\n * @internal\n */\nexport type TaskEvent = string;\n\n/**\n * An event that is triggered on a task.\n * @internal\n */\nexport const TaskEvent = {\n  /**\n   * For this event,\n   * <ul>\n   *   <li>The `next` function is triggered on progress updates and when the\n   *       task is paused/resumed with an `UploadTaskSnapshot` as the first\n   *       argument.</li>\n   *   <li>The `error` function is triggered if the upload is canceled or fails\n   *       for another reason.</li>\n   *   <li>The `complete` function is triggered if the upload completes\n   *       successfully.</li>\n   * </ul>\n   */\n  STATE_CHANGED: 'state_changed'\n};\n\n/**\n * Internal enum for task state.\n */\nexport const enum InternalTaskState {\n  RUNNING = 'running',\n  PAUSING = 'pausing',\n  PAUSED = 'paused',\n  SUCCESS = 'success',\n  CANCELING = 'canceling',\n  CANCELED = 'canceled',\n  ERROR = 'error'\n}\n\n/**\n * Represents the current state of a running upload.\n * @internal\n */\nexport type TaskState = (typeof TaskState)[keyof typeof TaskState];\n\n// type keys = keyof TaskState\n/**\n * Represents the current state of a running upload.\n * @internal\n */\nexport const TaskState = {\n  /** The task is currently transferring data. */\n  RUNNING: 'running',\n\n  /** The task was paused by the user. */\n  PAUSED: 'paused',\n\n  /** The task completed successfully. */\n  SUCCESS: 'success',\n\n  /** The task was canceled. */\n  CANCELED: 'canceled',\n\n  /** The task failed with an error. */\n  ERROR: 'error'\n} as const;\n\nexport function taskStateFromInternalTaskState(\n  state: InternalTaskState\n): TaskState {\n  switch (state) {\n    case InternalTaskState.RUNNING:\n    case InternalTaskState.PAUSING:\n    case InternalTaskState.CANCELING:\n      return TaskState.RUNNING;\n    case InternalTaskState.PAUSED:\n      return TaskState.PAUSED;\n    case InternalTaskState.SUCCESS:\n      return TaskState.SUCCESS;\n    case InternalTaskState.CANCELED:\n      return TaskState.CANCELED;\n    case InternalTaskState.ERROR:\n      return TaskState.ERROR;\n    default:\n      // TODO(andysoto): assert(false);\n      return TaskState.ERROR;\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport { isFunction } from './type';\nimport { StorageError } from './error';\n\n/**\n * Function that is called once for each value in a stream of values.\n */\nexport type NextFn<T> = (value: T) => void;\n\n/**\n * A function that is called with a `StorageError`\n * if the event stream ends due to an error.\n */\nexport type ErrorFn = (error: StorageError) => void;\n\n/**\n * A function that is called if the event stream ends normally.\n */\nexport type CompleteFn = () => void;\n\n/**\n * Unsubscribes from a stream.\n */\nexport type Unsubscribe = () => void;\n\n/**\n * An observer identical to the `Observer` defined in packages/util except the\n * error passed into the ErrorFn is specifically a `StorageError`.\n */\nexport interface StorageObserver<T> {\n  /**\n   * Function that is called once for each value in the event stream.\n   */\n  next?: NextFn<T>;\n  /**\n   * A function that is called with a `StorageError`\n   * if the event stream ends due to an error.\n   */\n  error?: ErrorFn;\n  /**\n   * A function that is called if the event stream ends normally.\n   */\n  complete?: CompleteFn;\n}\n\n/**\n * Subscribes to an event stream.\n */\nexport type Subscribe<T> = (\n  next?: NextFn<T> | StorageObserver<T>,\n  error?: ErrorFn,\n  complete?: CompleteFn\n) => Unsubscribe;\n\nexport class Observer<T> implements StorageObserver<T> {\n  next?: NextFn<T>;\n  error?: ErrorFn;\n  complete?: CompleteFn;\n\n  constructor(\n    nextOrObserver?: NextFn<T> | StorageObserver<T>,\n    error?: ErrorFn,\n    complete?: CompleteFn\n  ) {\n    const asFunctions =\n      isFunction(nextOrObserver) || error != null || complete != null;\n    if (asFunctions) {\n      this.next = nextOrObserver as NextFn<T>;\n      this.error = error ?? undefined;\n      this.complete = complete ?? undefined;\n    } else {\n      const observer = nextOrObserver as {\n        next?: NextFn<T>;\n        error?: ErrorFn;\n        complete?: CompleteFn;\n      };\n      this.next = observer.next;\n      this.error = observer.error;\n      this.complete = observer.complete;\n    }\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * Returns a function that invokes f with its arguments asynchronously as a\n * microtask, i.e. as soon as possible after the current script returns back\n * into browser code.\n */\n// eslint-disable-next-line @typescript-eslint/ban-types\nexport function async(f: Function): Function {\n  return (...argsToForward: unknown[]) => {\n    // eslint-disable-next-line @typescript-eslint/no-floating-promises\n    Promise.resolve().then(() => f(...argsToForward));\n  };\n}\n","/**\n * @license\n * Copyright 2021 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { isCloudWorkstation } from '@firebase/util';\nimport {\n  Connection,\n  ConnectionType,\n  ErrorCode\n} from '../../implementation/connection';\nimport { internalError } from '../../implementation/error';\n\n/** An override for the text-based Connection. Used in tests. */\nlet textFactoryOverride: (() => Connection<string>) | null = null;\n\n/**\n * Network layer that works in Node.\n *\n * This network implementation should not be used in browsers as it does not\n * support progress updates.\n */\nabstract class FetchConnection<T extends ConnectionType>\n  implements Connection<T>\n{\n  protected errorCode_: ErrorCode;\n  protected statusCode_: number | undefined;\n  protected body_: ArrayBuffer | undefined;\n  protected errorText_ = '';\n  protected headers_: Headers | undefined;\n  protected sent_: boolean = false;\n\n  constructor() {\n    this.errorCode_ = ErrorCode.NO_ERROR;\n  }\n\n  async send(\n    url: string,\n    method: string,\n    isUsingEmulator: boolean,\n    body?: NodeJS.ArrayBufferView | Blob | string,\n    headers?: Record<string, string>\n  ): Promise<void> {\n    if (this.sent_) {\n      throw internalError('cannot .send() more than once');\n    }\n    this.sent_ = true;\n\n    try {\n      const response = await newFetch(\n        url,\n        method,\n        isUsingEmulator,\n        headers,\n        body\n      );\n      this.headers_ = response.headers;\n      this.statusCode_ = response.status;\n      this.errorCode_ = ErrorCode.NO_ERROR;\n      this.body_ = await response.arrayBuffer();\n    } catch (e) {\n      this.errorText_ = (e as Error)?.message;\n      // emulate XHR which sets status to 0 when encountering a network error\n      this.statusCode_ = 0;\n      this.errorCode_ = ErrorCode.NETWORK_ERROR;\n    }\n  }\n\n  getErrorCode(): ErrorCode {\n    if (this.errorCode_ === undefined) {\n      throw internalError('cannot .getErrorCode() before receiving response');\n    }\n    return this.errorCode_;\n  }\n\n  getStatus(): number {\n    if (this.statusCode_ === undefined) {\n      throw internalError('cannot .getStatus() before receiving response');\n    }\n    return this.statusCode_;\n  }\n\n  abstract getResponse(): T;\n\n  getErrorText(): string {\n    return this.errorText_;\n  }\n\n  abort(): void {\n    // Not supported\n  }\n\n  getResponseHeader(header: string): string | null {\n    if (!this.headers_) {\n      throw internalError(\n        'cannot .getResponseHeader() before receiving response'\n      );\n    }\n    return this.headers_.get(header);\n  }\n\n  addUploadProgressListener(listener: (p1: ProgressEvent) => void): void {\n    // Not supported\n  }\n\n  removeUploadProgressListener(listener: (p1: ProgressEvent) => void): void {\n    // Not supported\n  }\n}\n\nexport class FetchTextConnection extends FetchConnection<string> {\n  getResponse(): string {\n    if (!this.body_) {\n      throw internalError('cannot .getResponse() before receiving response');\n    }\n    return Buffer.from(this.body_).toString('utf-8');\n  }\n}\n\nexport function newTextConnection(): Connection<string> {\n  return textFactoryOverride\n    ? textFactoryOverride()\n    : new FetchTextConnection();\n}\n\nexport class FetchBytesConnection extends FetchConnection<ArrayBuffer> {\n  getResponse(): ArrayBuffer {\n    if (!this.body_) {\n      throw internalError('cannot .getResponse() before sending');\n    }\n    return this.body_;\n  }\n}\n\nexport function newBytesConnection(): Connection<ArrayBuffer> {\n  return new FetchBytesConnection();\n}\n\nexport class FetchStreamConnection extends FetchConnection<\n  ReadableStream<Uint8Array>\n> {\n  private stream_: ReadableStream<Uint8Array> | null = null;\n\n  async send(\n    url: string,\n    method: string,\n    isUsingEmulator: boolean,\n    body?: NodeJS.ArrayBufferView | Blob | string,\n    headers?: Record<string, string>\n  ): Promise<void> {\n    if (this.sent_) {\n      throw internalError('cannot .send() more than once');\n    }\n    this.sent_ = true;\n\n    try {\n      const response = await newFetch(\n        url,\n        method,\n        isUsingEmulator,\n        headers,\n        body\n      );\n      this.headers_ = response.headers;\n      this.statusCode_ = response.status;\n      this.errorCode_ = ErrorCode.NO_ERROR;\n      this.stream_ = response.body as ReadableStream<Uint8Array>;\n    } catch (e) {\n      this.errorText_ = (e as Error)?.message;\n      // emulate XHR which sets status to 0 when encountering a network error\n      this.statusCode_ = 0;\n      this.errorCode_ = ErrorCode.NETWORK_ERROR;\n    }\n  }\n\n  getResponse(): ReadableStream {\n    if (!this.stream_) {\n      throw internalError('cannot .getResponse() before sending');\n    }\n    return this.stream_;\n  }\n}\n\nfunction newFetch(\n  url: string,\n  method: string,\n  isUsingEmulator: boolean,\n  headers?: Record<string, string>,\n  body?: NodeJS.ArrayBufferView | Blob | string\n): Promise<Response> {\n  const fetchArgs: RequestInit = {\n    method,\n    headers: headers || {},\n    body: body as NodeJS.ArrayBufferView | string\n  };\n  if (isCloudWorkstation(url) && isUsingEmulator) {\n    fetchArgs.credentials = 'include';\n  }\n  return fetch(url, fetchArgs);\n}\n\nexport function newStreamConnection(): Connection<ReadableStream<Uint8Array>> {\n  return new FetchStreamConnection();\n}\n\nexport function newBlobConnection(): Connection<Blob> {\n  throw new Error('Blobs are not supported on Node');\n}\n\nexport function injectTestConnection(\n  factory: (() => Connection<string>) | null\n): void {\n  textFactoryOverride = factory;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * @fileoverview Defines types for interacting with blob transfer tasks.\n */\n\nimport { FbsBlob } from './implementation/blob';\nimport {\n  canceled,\n  StorageErrorCode,\n  StorageError,\n  retryLimitExceeded\n} from './implementation/error';\nimport {\n  InternalTaskState,\n  TaskEvent,\n  TaskState,\n  taskStateFromInternalTaskState\n} from './implementation/taskenums';\nimport { Metadata } from './metadata';\nimport {\n  Observer,\n  Subscribe,\n  Unsubscribe,\n  StorageObserver as StorageObserverInternal,\n  NextFn\n} from './implementation/observer';\nimport { Request } from './implementation/request';\nimport { UploadTaskSnapshot, StorageObserver } from './public-types';\nimport { async as fbsAsync } from './implementation/async';\nimport { Mappings, getMappings } from './implementation/metadata';\nimport {\n  createResumableUpload,\n  getResumableUploadStatus,\n  RESUMABLE_UPLOAD_CHUNK_SIZE,\n  ResumableUploadStatus,\n  continueResumableUpload,\n  getMetadata,\n  multipartUpload\n} from './implementation/requests';\nimport { Reference } from './reference';\nimport { newTextConnection } from './platform/connection';\nimport { isRetryStatusCode } from './implementation/utils';\nimport { CompleteFn } from '@firebase/util';\nimport { DEFAULT_MIN_SLEEP_TIME_MILLIS } from './implementation/constants';\n\n/**\n * Represents a blob being uploaded. Can be used to pause/resume/cancel the\n * upload and manage callbacks for various events.\n * @internal\n */\nexport class UploadTask {\n  private _ref: Reference;\n  /**\n   * The data to be uploaded.\n   */\n  _blob: FbsBlob;\n  /**\n   * Metadata related to the upload.\n   */\n  _metadata: Metadata | null;\n  private _mappings: Mappings;\n  /**\n   * Number of bytes transferred so far.\n   */\n  _transferred: number = 0;\n  private _needToFetchStatus: boolean = false;\n  private _needToFetchMetadata: boolean = false;\n  private _observers: Array<StorageObserverInternal<UploadTaskSnapshot>> = [];\n  private _resumable: boolean;\n  /**\n   * Upload state.\n   */\n  _state: InternalTaskState;\n  private _error?: StorageError = undefined;\n  private _uploadUrl?: string = undefined;\n  private _request?: Request<unknown> = undefined;\n  private _chunkMultiplier: number = 1;\n  private _errorHandler: (p1: StorageError) => void;\n  private _metadataErrorHandler: (p1: StorageError) => void;\n  private _resolve?: (p1: UploadTaskSnapshot) => void = undefined;\n  private _reject?: (p1: StorageError) => void = undefined;\n  private pendingTimeout?: ReturnType<typeof setTimeout>;\n  private _promise: Promise<UploadTaskSnapshot>;\n\n  private sleepTime: number;\n\n  private maxSleepTime: number;\n\n  isExponentialBackoffExpired(): boolean {\n    return this.sleepTime > this.maxSleepTime;\n  }\n\n  /**\n   * @param ref - The firebaseStorage.Reference object this task came\n   *     from, untyped to avoid cyclic dependencies.\n   * @param blob - The blob to upload.\n   */\n  constructor(ref: Reference, blob: FbsBlob, metadata: Metadata | null = null) {\n    this._ref = ref;\n    this._blob = blob;\n    this._metadata = metadata;\n    this._mappings = getMappings();\n    this._resumable = this._shouldDoResumable(this._blob);\n    this._state = InternalTaskState.RUNNING;\n    this._errorHandler = error => {\n      this._request = undefined;\n      this._chunkMultiplier = 1;\n      if (error._codeEquals(StorageErrorCode.CANCELED)) {\n        this._needToFetchStatus = true;\n        this.completeTransitions_();\n      } else {\n        const backoffExpired = this.isExponentialBackoffExpired();\n        if (isRetryStatusCode(error.status, [])) {\n          if (backoffExpired) {\n            error = retryLimitExceeded();\n          } else {\n            this.sleepTime = Math.max(\n              this.sleepTime * 2,\n              DEFAULT_MIN_SLEEP_TIME_MILLIS\n            );\n            this._needToFetchStatus = true;\n            this.completeTransitions_();\n            return;\n          }\n        }\n        this._error = error;\n        this._transition(InternalTaskState.ERROR);\n      }\n    };\n    this._metadataErrorHandler = error => {\n      this._request = undefined;\n      if (error._codeEquals(StorageErrorCode.CANCELED)) {\n        this.completeTransitions_();\n      } else {\n        this._error = error;\n        this._transition(InternalTaskState.ERROR);\n      }\n    };\n    this.sleepTime = 0;\n    this.maxSleepTime = this._ref.storage.maxUploadRetryTime;\n    this._promise = new Promise((resolve, reject) => {\n      this._resolve = resolve;\n      this._reject = reject;\n      this._start();\n    });\n\n    // Prevent uncaught rejections on the internal promise from bubbling out\n    // to the top level with a dummy handler.\n    this._promise.then(null, () => {});\n  }\n\n  private _makeProgressCallback(): (p1: number, p2: number) => void {\n    const sizeBefore = this._transferred;\n    return loaded => this._updateProgress(sizeBefore + loaded);\n  }\n\n  private _shouldDoResumable(blob: FbsBlob): boolean {\n    return blob.size() > 256 * 1024;\n  }\n\n  private _start(): void {\n    if (this._state !== InternalTaskState.RUNNING) {\n      // This can happen if someone pauses us in a resume callback, for example.\n      return;\n    }\n    if (this._request !== undefined) {\n      return;\n    }\n    if (this._resumable) {\n      if (this._uploadUrl === undefined) {\n        this._createResumable();\n      } else {\n        if (this._needToFetchStatus) {\n          this._fetchStatus();\n        } else {\n          if (this._needToFetchMetadata) {\n            // Happens if we miss the metadata on upload completion.\n            this._fetchMetadata();\n          } else {\n            this.pendingTimeout = setTimeout(() => {\n              this.pendingTimeout = undefined;\n              this._continueUpload();\n            }, this.sleepTime);\n          }\n        }\n      }\n    } else {\n      this._oneShotUpload();\n    }\n  }\n\n  private _resolveToken(\n    callback: (authToken: string | null, appCheckToken: string | null) => void\n  ): void {\n    // eslint-disable-next-line @typescript-eslint/no-floating-promises\n    Promise.all([\n      this._ref.storage._getAuthToken(),\n      this._ref.storage._getAppCheckToken()\n    ]).then(([authToken, appCheckToken]) => {\n      switch (this._state) {\n        case InternalTaskState.RUNNING:\n          callback(authToken, appCheckToken);\n          break;\n        case InternalTaskState.CANCELING:\n          this._transition(InternalTaskState.CANCELED);\n          break;\n        case InternalTaskState.PAUSING:\n          this._transition(InternalTaskState.PAUSED);\n          break;\n        default:\n      }\n    });\n  }\n\n  // TODO(andysoto): assert false\n\n  private _createResumable(): void {\n    this._resolveToken((authToken, appCheckToken) => {\n      const requestInfo = createResumableUpload(\n        this._ref.storage,\n        this._ref._location,\n        this._mappings,\n        this._blob,\n        this._metadata\n      );\n      const createRequest = this._ref.storage._makeRequest(\n        requestInfo,\n        newTextConnection,\n        authToken,\n        appCheckToken\n      );\n      this._request = createRequest;\n      createRequest.getPromise().then((url: string) => {\n        this._request = undefined;\n        this._uploadUrl = url;\n        this._needToFetchStatus = false;\n        this.completeTransitions_();\n      }, this._errorHandler);\n    });\n  }\n\n  private _fetchStatus(): void {\n    // TODO(andysoto): assert(this.uploadUrl_ !== null);\n    const url = this._uploadUrl as string;\n    this._resolveToken((authToken, appCheckToken) => {\n      const requestInfo = getResumableUploadStatus(\n        this._ref.storage,\n        this._ref._location,\n        url,\n        this._blob\n      );\n      const statusRequest = this._ref.storage._makeRequest(\n        requestInfo,\n        newTextConnection,\n        authToken,\n        appCheckToken\n      );\n      this._request = statusRequest;\n      statusRequest.getPromise().then(status => {\n        status = status as ResumableUploadStatus;\n        this._request = undefined;\n        this._updateProgress(status.current);\n        this._needToFetchStatus = false;\n        if (status.finalized) {\n          this._needToFetchMetadata = true;\n        }\n        this.completeTransitions_();\n      }, this._errorHandler);\n    });\n  }\n\n  private _continueUpload(): void {\n    const chunkSize = RESUMABLE_UPLOAD_CHUNK_SIZE * this._chunkMultiplier;\n    const status = new ResumableUploadStatus(\n      this._transferred,\n      this._blob.size()\n    );\n\n    // TODO(andysoto): assert(this.uploadUrl_ !== null);\n    const url = this._uploadUrl as string;\n    this._resolveToken((authToken, appCheckToken) => {\n      let requestInfo;\n      try {\n        requestInfo = continueResumableUpload(\n          this._ref._location,\n          this._ref.storage,\n          url,\n          this._blob,\n          chunkSize,\n          this._mappings,\n          status,\n          this._makeProgressCallback()\n        );\n      } catch (e) {\n        this._error = e as StorageError;\n        this._transition(InternalTaskState.ERROR);\n        return;\n      }\n      const uploadRequest = this._ref.storage._makeRequest(\n        requestInfo,\n        newTextConnection,\n        authToken,\n        appCheckToken,\n        /*retry=*/ false // Upload requests should not be retried as each retry should be preceded by another query request. Which is handled in this file.\n      );\n      this._request = uploadRequest;\n      uploadRequest.getPromise().then((newStatus: ResumableUploadStatus) => {\n        this._increaseMultiplier();\n        this._request = undefined;\n        this._updateProgress(newStatus.current);\n        if (newStatus.finalized) {\n          this._metadata = newStatus.metadata;\n          this._transition(InternalTaskState.SUCCESS);\n        } else {\n          this.completeTransitions_();\n        }\n      }, this._errorHandler);\n    });\n  }\n\n  private _increaseMultiplier(): void {\n    const currentSize = RESUMABLE_UPLOAD_CHUNK_SIZE * this._chunkMultiplier;\n\n    // Max chunk size is 32M.\n    if (currentSize * 2 < 32 * 1024 * 1024) {\n      this._chunkMultiplier *= 2;\n    }\n  }\n\n  private _fetchMetadata(): void {\n    this._resolveToken((authToken, appCheckToken) => {\n      const requestInfo = getMetadata(\n        this._ref.storage,\n        this._ref._location,\n        this._mappings\n      );\n      const metadataRequest = this._ref.storage._makeRequest(\n        requestInfo,\n        newTextConnection,\n        authToken,\n        appCheckToken\n      );\n      this._request = metadataRequest;\n      metadataRequest.getPromise().then(metadata => {\n        this._request = undefined;\n        this._metadata = metadata;\n        this._transition(InternalTaskState.SUCCESS);\n      }, this._metadataErrorHandler);\n    });\n  }\n\n  private _oneShotUpload(): void {\n    this._resolveToken((authToken, appCheckToken) => {\n      const requestInfo = multipartUpload(\n        this._ref.storage,\n        this._ref._location,\n        this._mappings,\n        this._blob,\n        this._metadata\n      );\n      const multipartRequest = this._ref.storage._makeRequest(\n        requestInfo,\n        newTextConnection,\n        authToken,\n        appCheckToken\n      );\n      this._request = multipartRequest;\n      multipartRequest.getPromise().then(metadata => {\n        this._request = undefined;\n        this._metadata = metadata;\n        this._updateProgress(this._blob.size());\n        this._transition(InternalTaskState.SUCCESS);\n      }, this._errorHandler);\n    });\n  }\n\n  private _updateProgress(transferred: number): void {\n    const old = this._transferred;\n    this._transferred = transferred;\n\n    // A progress update can make the \"transferred\" value smaller (e.g. a\n    // partial upload not completed by server, after which the \"transferred\"\n    // value may reset to the value at the beginning of the request).\n    if (this._transferred !== old) {\n      this._notifyObservers();\n    }\n  }\n\n  private _transition(state: InternalTaskState): void {\n    if (this._state === state) {\n      return;\n    }\n    switch (state) {\n      case InternalTaskState.CANCELING:\n      case InternalTaskState.PAUSING:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.RUNNING ||\n        //        this.state_ === InternalTaskState.PAUSING);\n        this._state = state;\n        if (this._request !== undefined) {\n          this._request.cancel();\n        } else if (this.pendingTimeout) {\n          clearTimeout(this.pendingTimeout);\n          this.pendingTimeout = undefined;\n          this.completeTransitions_();\n        }\n        break;\n      case InternalTaskState.RUNNING:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.PAUSED ||\n        //        this.state_ === InternalTaskState.PAUSING);\n        const wasPaused = this._state === InternalTaskState.PAUSED;\n        this._state = state;\n        if (wasPaused) {\n          this._notifyObservers();\n          this._start();\n        }\n        break;\n      case InternalTaskState.PAUSED:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.PAUSING);\n        this._state = state;\n        this._notifyObservers();\n        break;\n      case InternalTaskState.CANCELED:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.PAUSED ||\n        //        this.state_ === InternalTaskState.CANCELING);\n        this._error = canceled();\n        this._state = state;\n        this._notifyObservers();\n        break;\n      case InternalTaskState.ERROR:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.RUNNING ||\n        //        this.state_ === InternalTaskState.PAUSING ||\n        //        this.state_ === InternalTaskState.CANCELING);\n        this._state = state;\n        this._notifyObservers();\n        break;\n      case InternalTaskState.SUCCESS:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.RUNNING ||\n        //        this.state_ === InternalTaskState.PAUSING ||\n        //        this.state_ === InternalTaskState.CANCELING);\n        this._state = state;\n        this._notifyObservers();\n        break;\n      default: // Ignore\n    }\n  }\n\n  private completeTransitions_(): void {\n    switch (this._state) {\n      case InternalTaskState.PAUSING:\n        this._transition(InternalTaskState.PAUSED);\n        break;\n      case InternalTaskState.CANCELING:\n        this._transition(InternalTaskState.CANCELED);\n        break;\n      case InternalTaskState.RUNNING:\n        this._start();\n        break;\n      default:\n        // TODO(andysoto): assert(false);\n        break;\n    }\n  }\n\n  /**\n   * A snapshot of the current task state.\n   */\n  get snapshot(): UploadTaskSnapshot {\n    const externalState = taskStateFromInternalTaskState(this._state);\n    return {\n      bytesTransferred: this._transferred,\n      totalBytes: this._blob.size(),\n      state: externalState,\n      metadata: this._metadata!,\n      task: this,\n      ref: this._ref\n    };\n  }\n\n  /**\n   * Adds a callback for an event.\n   * @param type - The type of event to listen for.\n   * @param nextOrObserver -\n   *     The `next` function, which gets called for each item in\n   *     the event stream, or an observer object with some or all of these three\n   *     properties (`next`, `error`, `complete`).\n   * @param error - A function that gets called with a `StorageError`\n   *     if the event stream ends due to an error.\n   * @param completed - A function that gets called if the\n   *     event stream ends normally.\n   * @returns\n   *     If only the event argument is passed, returns a function you can use to\n   *     add callbacks (see the examples above). If more than just the event\n   *     argument is passed, returns a function you can call to unregister the\n   *     callbacks.\n   */\n  on(\n    type: TaskEvent,\n    nextOrObserver?:\n      | StorageObserver<UploadTaskSnapshot>\n      | null\n      | ((snapshot: UploadTaskSnapshot) => unknown),\n    error?: ((a: StorageError) => unknown) | null,\n    completed?: CompleteFn | null\n  ): Unsubscribe | Subscribe<UploadTaskSnapshot> {\n    // Note: `type` isn't being used. Its type is also incorrect. TaskEvent should not be a string.\n    const observer = new Observer(\n      (nextOrObserver as\n        | StorageObserverInternal<UploadTaskSnapshot>\n        | NextFn<UploadTaskSnapshot>) || undefined,\n      error || undefined,\n      completed || undefined\n    );\n    this._addObserver(observer);\n    return () => {\n      this._removeObserver(observer);\n    };\n  }\n\n  /**\n   * This object behaves like a Promise, and resolves with its snapshot data\n   * when the upload completes.\n   * @param onFulfilled - The fulfillment callback. Promise chaining works as normal.\n   * @param onRejected - The rejection callback.\n   */\n  then<U>(\n    onFulfilled?: ((value: UploadTaskSnapshot) => U | Promise<U>) | null,\n    onRejected?: ((error: StorageError) => U | Promise<U>) | null\n  ): Promise<U> {\n    // These casts are needed so that TypeScript can infer the types of the\n    // resulting Promise.\n    return this._promise.then<U>(\n      onFulfilled as (value: UploadTaskSnapshot) => U | Promise<U>,\n      onRejected as ((error: unknown) => Promise<never>) | null\n    );\n  }\n\n  /**\n   * Equivalent to calling `then(null, onRejected)`.\n   */\n  catch<T>(onRejected: (p1: StorageError) => T | Promise<T>): Promise<T> {\n    return this.then(null, onRejected);\n  }\n\n  /**\n   * Adds the given observer.\n   */\n  private _addObserver(observer: Observer<UploadTaskSnapshot>): void {\n    this._observers.push(observer);\n    this._notifyObserver(observer);\n  }\n\n  /**\n   * Removes the given observer.\n   */\n  private _removeObserver(observer: Observer<UploadTaskSnapshot>): void {\n    const i = this._observers.indexOf(observer);\n    if (i !== -1) {\n      this._observers.splice(i, 1);\n    }\n  }\n\n  private _notifyObservers(): void {\n    this._finishPromise();\n    const observers = this._observers.slice();\n    observers.forEach(observer => {\n      this._notifyObserver(observer);\n    });\n  }\n\n  private _finishPromise(): void {\n    if (this._resolve !== undefined) {\n      let triggered = true;\n      switch (taskStateFromInternalTaskState(this._state)) {\n        case TaskState.SUCCESS:\n          fbsAsync(this._resolve.bind(null, this.snapshot))();\n          break;\n        case TaskState.CANCELED:\n        case TaskState.ERROR:\n          const toCall = this._reject as (p1: StorageError) => void;\n          fbsAsync(toCall.bind(null, this._error as StorageError))();\n          break;\n        default:\n          triggered = false;\n          break;\n      }\n      if (triggered) {\n        this._resolve = undefined;\n        this._reject = undefined;\n      }\n    }\n  }\n\n  private _notifyObserver(observer: Observer<UploadTaskSnapshot>): void {\n    const externalState = taskStateFromInternalTaskState(this._state);\n    switch (externalState) {\n      case TaskState.RUNNING:\n      case TaskState.PAUSED:\n        if (observer.next) {\n          fbsAsync(observer.next.bind(observer, this.snapshot))();\n        }\n        break;\n      case TaskState.SUCCESS:\n        if (observer.complete) {\n          fbsAsync(observer.complete.bind(observer))();\n        }\n        break;\n      case TaskState.CANCELED:\n      case TaskState.ERROR:\n        if (observer.error) {\n          fbsAsync(\n            observer.error.bind(observer, this._error as StorageError)\n          )();\n        }\n        break;\n      default:\n        // TODO(andysoto): assert(false);\n        if (observer.error) {\n          fbsAsync(\n            observer.error.bind(observer, this._error as StorageError)\n          )();\n        }\n    }\n  }\n\n  /**\n   * Resumes a paused task. Has no effect on a currently running or failed task.\n   * @returns True if the operation took effect, false if ignored.\n   */\n  resume(): boolean {\n    const valid =\n      this._state === InternalTaskState.PAUSED ||\n      this._state === InternalTaskState.PAUSING;\n    if (valid) {\n      this._transition(InternalTaskState.RUNNING);\n    }\n    return valid;\n  }\n\n  /**\n   * Pauses a currently running task. Has no effect on a paused or failed task.\n   * @returns True if the operation took effect, false if ignored.\n   */\n  pause(): boolean {\n    const valid = this._state === InternalTaskState.RUNNING;\n    if (valid) {\n      this._transition(InternalTaskState.PAUSING);\n    }\n    return valid;\n  }\n\n  /**\n   * Cancels a currently running or paused task. Has no effect on a complete or\n   * failed task.\n   * @returns True if the operation took effect, false if ignored.\n   */\n  cancel(): boolean {\n    const valid =\n      this._state === InternalTaskState.RUNNING ||\n      this._state === InternalTaskState.PAUSING;\n    if (valid) {\n      this._transition(InternalTaskState.CANCELING);\n    }\n    return valid;\n  }\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Defines the Firebase StorageReference class.\n */\n\nimport { FbsBlob } from './implementation/blob';\nimport { Location } from './implementation/location';\nimport { getMappings } from './implementation/metadata';\nimport { child, lastComponent, parent } from './implementation/path';\nimport {\n  deleteObject as requestsDeleteObject,\n  getBytes,\n  getDownloadUrl as requestsGetDownloadUrl,\n  getMetadata as requestsGetMetadata,\n  list as requestsList,\n  multipartUpload,\n  updateMetadata as requestsUpdateMetadata\n} from './implementation/requests';\nimport { ListOptions, UploadResult } from './public-types';\nimport { dataFromString, StringFormat } from './implementation/string';\nimport { Metadata } from './metadata';\nimport { FirebaseStorageImpl } from './service';\nimport { ListResult } from './list';\nimport { UploadTask } from './task';\nimport { invalidRootOperation, noDownloadURL } from './implementation/error';\nimport { validateNumber } from './implementation/type';\nimport {\n  newBlobConnection,\n  newBytesConnection,\n  newStreamConnection,\n  newTextConnection\n} from './platform/connection';\nimport { RequestInfo } from './implementation/requestinfo';\n\n/**\n * Provides methods to interact with a bucket in the Firebase Storage service.\n * @internal\n * @param _location - An fbs.location, or the URL at\n *     which to base this object, in one of the following forms:\n *         gs://<bucket>/<object-path>\n *         http[s]://firebasestorage.googleapis.com/\n *                     <api-version>/b/<bucket>/o/<object-path>\n *     Any query or fragment strings will be ignored in the http[s]\n *     format. If no value is passed, the storage object will use a URL based on\n *     the project ID of the base firebase.App instance.\n */\nexport class Reference {\n  _location: Location;\n\n  constructor(\n    private _service: FirebaseStorageImpl,\n    location: string | Location\n  ) {\n    if (location instanceof Location) {\n      this._location = location;\n    } else {\n      this._location = Location.makeFromUrl(location, _service.host);\n    }\n  }\n\n  /**\n   * Returns the URL for the bucket and path this object references,\n   *     in the form gs://<bucket>/<object-path>\n   * @override\n   */\n  toString(): string {\n    return 'gs://' + this._location.bucket + '/' + this._location.path;\n  }\n\n  protected _newRef(\n    service: FirebaseStorageImpl,\n    location: Location\n  ): Reference {\n    return new Reference(service, location);\n  }\n\n  /**\n   * A reference to the root of this object's bucket.\n   */\n  get root(): Reference {\n    const location = new Location(this._location.bucket, '');\n    return this._newRef(this._service, location);\n  }\n\n  /**\n   * The name of the bucket containing this reference's object.\n   */\n  get bucket(): string {\n    return this._location.bucket;\n  }\n\n  /**\n   * The full path of this object.\n   */\n  get fullPath(): string {\n    return this._location.path;\n  }\n\n  /**\n   * The short name of this object, which is the last component of the full path.\n   * For example, if fullPath is 'full/path/image.png', name is 'image.png'.\n   */\n  get name(): string {\n    return lastComponent(this._location.path);\n  }\n\n  /**\n   * The `StorageService` instance this `StorageReference` is associated with.\n   */\n  get storage(): FirebaseStorageImpl {\n    return this._service;\n  }\n\n  /**\n   * A `StorageReference` pointing to the parent location of this `StorageReference`, or null if\n   * this reference is the root.\n   */\n  get parent(): Reference | null {\n    const newPath = parent(this._location.path);\n    if (newPath === null) {\n      return null;\n    }\n    const location = new Location(this._location.bucket, newPath);\n    return new Reference(this._service, location);\n  }\n\n  /**\n   * Utility function to throw an error in methods that do not accept a root reference.\n   */\n  _throwIfRoot(name: string): void {\n    if (this._location.path === '') {\n      throw invalidRootOperation(name);\n    }\n  }\n}\n\n/**\n * Download the bytes at the object's location.\n * @returns A Promise containing the downloaded bytes.\n */\nexport function getBytesInternal(\n  ref: Reference,\n  maxDownloadSizeBytes?: number\n): Promise<ArrayBuffer> {\n  ref._throwIfRoot('getBytes');\n  const requestInfo = getBytes(\n    ref.storage,\n    ref._location,\n    maxDownloadSizeBytes\n  );\n  return ref.storage\n    .makeRequestWithTokens(requestInfo, newBytesConnection)\n    .then(bytes =>\n      maxDownloadSizeBytes !== undefined\n        ? // GCS may not honor the Range header for small files\n          (bytes as ArrayBuffer).slice(0, maxDownloadSizeBytes)\n        : (bytes as ArrayBuffer)\n    );\n}\n\n/**\n * Download the bytes at the object's location.\n * @returns A Promise containing the downloaded blob.\n */\nexport function getBlobInternal(\n  ref: Reference,\n  maxDownloadSizeBytes?: number\n): Promise<Blob> {\n  ref._throwIfRoot('getBlob');\n  const requestInfo = getBytes(\n    ref.storage,\n    ref._location,\n    maxDownloadSizeBytes\n  );\n  return ref.storage\n    .makeRequestWithTokens(requestInfo, newBlobConnection)\n    .then(blob =>\n      maxDownloadSizeBytes !== undefined\n        ? // GCS may not honor the Range header for small files\n          (blob as Blob).slice(0, maxDownloadSizeBytes)\n        : (blob as Blob)\n    );\n}\n\n/** Stream the bytes at the object's location. */\nexport function getStreamInternal(\n  ref: Reference,\n  maxDownloadSizeBytes?: number\n): ReadableStream {\n  ref._throwIfRoot('getStream');\n  const requestInfo: RequestInfo<ReadableStream, ReadableStream> = getBytes(\n    ref.storage,\n    ref._location,\n    maxDownloadSizeBytes\n  );\n\n  // Transforms the stream so that only `maxDownloadSizeBytes` bytes are piped to the result\n  const newMaxSizeTransform = (n: number): Transformer => {\n    let missingBytes = n;\n    return {\n      transform(chunk, controller: TransformStreamDefaultController) {\n        // GCS may not honor the Range header for small files\n        if (chunk.length < missingBytes) {\n          controller.enqueue(chunk);\n          missingBytes -= chunk.length;\n        } else {\n          controller.enqueue(chunk.slice(0, missingBytes));\n          controller.terminate();\n        }\n      }\n    };\n  };\n\n  const result =\n    maxDownloadSizeBytes !== undefined\n      ? new TransformStream(newMaxSizeTransform(maxDownloadSizeBytes))\n      : new TransformStream(); // The default transformer forwards all chunks to its readable side\n\n  ref.storage\n    .makeRequestWithTokens(requestInfo, newStreamConnection)\n    .then(readableStream => readableStream.pipeThrough(result))\n    .catch(err => result.writable.abort(err));\n\n  return result.readable;\n}\n\n/**\n * Uploads data to this object's location.\n * The upload is not resumable.\n *\n * @param ref - StorageReference where data should be uploaded.\n * @param data - The data to upload.\n * @param metadata - Metadata for the newly uploaded data.\n * @returns A Promise containing an UploadResult\n */\nexport function uploadBytes(\n  ref: Reference,\n  data: Blob | Uint8Array | ArrayBuffer,\n  metadata?: Metadata\n): Promise<UploadResult> {\n  ref._throwIfRoot('uploadBytes');\n  const requestInfo = multipartUpload(\n    ref.storage,\n    ref._location,\n    getMappings(),\n    new FbsBlob(data, true),\n    metadata\n  );\n  return ref.storage\n    .makeRequestWithTokens(requestInfo, newTextConnection)\n    .then(finalMetadata => {\n      return {\n        metadata: finalMetadata,\n        ref\n      };\n    });\n}\n\n/**\n * Uploads data to this object's location.\n * The upload can be paused and resumed, and exposes progress updates.\n * @public\n * @param ref - StorageReference where data should be uploaded.\n * @param data - The data to upload.\n * @param metadata - Metadata for the newly uploaded data.\n * @returns An UploadTask\n */\nexport function uploadBytesResumable(\n  ref: Reference,\n  data: Blob | Uint8Array | ArrayBuffer,\n  metadata?: Metadata\n): UploadTask {\n  ref._throwIfRoot('uploadBytesResumable');\n  return new UploadTask(ref, new FbsBlob(data), metadata);\n}\n\n/**\n * Uploads a string to this object's location.\n * The upload is not resumable.\n * @public\n * @param ref - StorageReference where string should be uploaded.\n * @param value - The string to upload.\n * @param format - The format of the string to upload.\n * @param metadata - Metadata for the newly uploaded string.\n * @returns A Promise containing an UploadResult\n */\nexport function uploadString(\n  ref: Reference,\n  value: string,\n  format: StringFormat = StringFormat.RAW,\n  metadata?: Metadata\n): Promise<UploadResult> {\n  ref._throwIfRoot('uploadString');\n  const data = dataFromString(format, value);\n  const metadataClone = { ...metadata } as Metadata;\n  if (metadataClone['contentType'] == null && data.contentType != null) {\n    metadataClone['contentType'] = data.contentType!;\n  }\n  return uploadBytes(ref, data.data, metadataClone);\n}\n\n/**\n * List all items (files) and prefixes (folders) under this storage reference.\n *\n * This is a helper method for calling list() repeatedly until there are\n * no more results. The default pagination size is 1000.\n *\n * Note: The results may not be consistent if objects are changed while this\n * operation is running.\n *\n * Warning: listAll may potentially consume too many resources if there are\n * too many results.\n * @public\n * @param ref - StorageReference to get list from.\n *\n * @returns A Promise that resolves with all the items and prefixes under\n *      the current storage reference. `prefixes` contains references to\n *      sub-directories and `items` contains references to objects in this\n *      folder. `nextPageToken` is never returned.\n */\nexport function listAll(ref: Reference): Promise<ListResult> {\n  const accumulator: ListResult = {\n    prefixes: [],\n    items: []\n  };\n  return listAllHelper(ref, accumulator).then(() => accumulator);\n}\n\n/**\n * Separated from listAll because async functions can't use \"arguments\".\n * @param ref\n * @param accumulator\n * @param pageToken\n */\nasync function listAllHelper(\n  ref: Reference,\n  accumulator: ListResult,\n  pageToken?: string\n): Promise<void> {\n  const opt: ListOptions = {\n    // maxResults is 1000 by default.\n    pageToken\n  };\n  const nextPage = await list(ref, opt);\n  accumulator.prefixes.push(...nextPage.prefixes);\n  accumulator.items.push(...nextPage.items);\n  if (nextPage.nextPageToken != null) {\n    await listAllHelper(ref, accumulator, nextPage.nextPageToken);\n  }\n}\n\n/**\n * List items (files) and prefixes (folders) under this storage reference.\n *\n * List API is only available for Firebase Rules Version 2.\n *\n * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'\n * delimited folder structure.\n * Refer to GCS's List API if you want to learn more.\n *\n * To adhere to Firebase Rules's Semantics, Firebase Storage does not\n * support objects whose paths end with \"/\" or contain two consecutive\n * \"/\"s. Firebase Storage List API will filter these unsupported objects.\n * list() may fail if there are too many unsupported objects in the bucket.\n * @public\n *\n * @param ref - StorageReference to get list from.\n * @param options - See ListOptions for details.\n * @returns A Promise that resolves with the items and prefixes.\n *      `prefixes` contains references to sub-folders and `items`\n *      contains references to objects in this folder. `nextPageToken`\n *      can be used to get the rest of the results.\n */\nexport function list(\n  ref: Reference,\n  options?: ListOptions | null\n): Promise<ListResult> {\n  if (options != null) {\n    if (typeof options.maxResults === 'number') {\n      validateNumber(\n        'options.maxResults',\n        /* minValue= */ 1,\n        /* maxValue= */ 1000,\n        options.maxResults\n      );\n    }\n  }\n  const op = options || {};\n  const requestInfo = requestsList(\n    ref.storage,\n    ref._location,\n    /*delimiter= */ '/',\n    op.pageToken,\n    op.maxResults\n  );\n  return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);\n}\n\n/**\n * A `Promise` that resolves with the metadata for this object. If this\n * object doesn't exist or metadata cannot be retrieved, the promise is\n * rejected.\n * @public\n * @param ref - StorageReference to get metadata from.\n */\nexport function getMetadata(ref: Reference): Promise<Metadata> {\n  ref._throwIfRoot('getMetadata');\n  const requestInfo = requestsGetMetadata(\n    ref.storage,\n    ref._location,\n    getMappings()\n  );\n  return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);\n}\n\n/**\n * Updates the metadata for this object.\n * @public\n * @param ref - StorageReference to update metadata for.\n * @param metadata - The new metadata for the object.\n *     Only values that have been explicitly set will be changed. Explicitly\n *     setting a value to null will remove the metadata.\n * @returns A `Promise` that resolves\n *     with the new metadata for this object.\n *     See `firebaseStorage.Reference.prototype.getMetadata`\n */\nexport function updateMetadata(\n  ref: Reference,\n  metadata: Partial<Metadata>\n): Promise<Metadata> {\n  ref._throwIfRoot('updateMetadata');\n  const requestInfo = requestsUpdateMetadata(\n    ref.storage,\n    ref._location,\n    metadata,\n    getMappings()\n  );\n  return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);\n}\n\n/**\n * Returns the download URL for the given Reference.\n * @public\n * @returns A `Promise` that resolves with the download\n *     URL for this object.\n */\nexport function getDownloadURL(ref: Reference): Promise<string> {\n  ref._throwIfRoot('getDownloadURL');\n  const requestInfo = requestsGetDownloadUrl(\n    ref.storage,\n    ref._location,\n    getMappings()\n  );\n  return ref.storage\n    .makeRequestWithTokens(requestInfo, newTextConnection)\n    .then(url => {\n      if (url === null) {\n        throw noDownloadURL();\n      }\n      return url;\n    });\n}\n\n/**\n * Deletes the object at this location.\n * @public\n * @param ref - StorageReference for object to delete.\n * @returns A `Promise` that resolves if the deletion succeeds.\n */\nexport function deleteObject(ref: Reference): Promise<void> {\n  ref._throwIfRoot('deleteObject');\n  const requestInfo = requestsDeleteObject(ref.storage, ref._location);\n  return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);\n}\n\n/**\n * Returns reference for object obtained by appending `childPath` to `ref`.\n *\n * @param ref - StorageReference to get child of.\n * @param childPath - Child path from provided ref.\n * @returns A reference to the object obtained by\n * appending childPath, removing any duplicate, beginning, or trailing\n * slashes.\n *\n */\nexport function _getChild(ref: Reference, childPath: string): Reference {\n  const newPath = child(ref._location.path, childPath);\n  const location = new Location(ref._location.bucket, newPath);\n  return new Reference(ref.storage, location);\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { Location } from './implementation/location';\nimport { FailRequest } from './implementation/failrequest';\nimport { Request, makeRequest } from './implementation/request';\nimport { RequestInfo } from './implementation/requestinfo';\nimport { Reference, _getChild } from './reference';\nimport { Provider } from '@firebase/component';\nimport { FirebaseAuthInternalName } from '@firebase/auth-interop-types';\nimport { AppCheckInternalComponentName } from '@firebase/app-check-interop-types';\n// eslint-disable-next-line import/no-extraneous-dependencies\nimport {\n  FirebaseApp,\n  FirebaseOptions,\n  _isFirebaseServerApp\n} from '@firebase/app';\nimport {\n  CONFIG_STORAGE_BUCKET_KEY,\n  DEFAULT_HOST,\n  DEFAULT_MAX_OPERATION_RETRY_TIME,\n  DEFAULT_MAX_UPLOAD_RETRY_TIME\n} from './implementation/constants';\nimport {\n  invalidArgument,\n  appDeleted,\n  noDefaultBucket\n} from './implementation/error';\nimport { validateNumber } from './implementation/type';\nimport { FirebaseStorage } from './public-types';\nimport {\n  createMockUserToken,\n  EmulatorMockTokenOptions,\n  isCloudWorkstation,\n  pingServer,\n  updateEmulatorBanner\n} from '@firebase/util';\nimport { Connection, ConnectionType } from './implementation/connection';\n\nexport function isUrl(path?: string): boolean {\n  return /^[A-Za-z]+:\\/\\//.test(path as string);\n}\n\n/**\n * Returns a firebaseStorage.Reference for the given url.\n */\nfunction refFromURL(service: FirebaseStorageImpl, url: string): Reference {\n  return new Reference(service, url);\n}\n\n/**\n * Returns a firebaseStorage.Reference for the given path in the default\n * bucket.\n */\nfunction refFromPath(\n  ref: FirebaseStorageImpl | Reference,\n  path?: string\n): Reference {\n  if (ref instanceof FirebaseStorageImpl) {\n    const service = ref;\n    if (service._bucket == null) {\n      throw noDefaultBucket();\n    }\n    const reference = new Reference(service, service._bucket!);\n    if (path != null) {\n      return refFromPath(reference, path);\n    } else {\n      return reference;\n    }\n  } else {\n    // ref is a Reference\n    if (path !== undefined) {\n      return _getChild(ref, path);\n    } else {\n      return ref;\n    }\n  }\n}\n\n/**\n * Returns a storage Reference for the given url.\n * @param storage - `Storage` instance.\n * @param url - URL. If empty, returns root reference.\n * @public\n */\nexport function ref(storage: FirebaseStorageImpl, url?: string): Reference;\n/**\n * Returns a storage Reference for the given path in the\n * default bucket.\n * @param storageOrRef - `Storage` service or storage `Reference`.\n * @param pathOrUrlStorage - path. If empty, returns root reference (if Storage\n * instance provided) or returns same reference (if Reference provided).\n * @public\n */\nexport function ref(\n  storageOrRef: FirebaseStorageImpl | Reference,\n  path?: string\n): Reference;\nexport function ref(\n  serviceOrRef: FirebaseStorageImpl | Reference,\n  pathOrUrl?: string\n): Reference | null {\n  if (pathOrUrl && isUrl(pathOrUrl)) {\n    if (serviceOrRef instanceof FirebaseStorageImpl) {\n      return refFromURL(serviceOrRef, pathOrUrl);\n    } else {\n      throw invalidArgument(\n        'To use ref(service, url), the first argument must be a Storage instance.'\n      );\n    }\n  } else {\n    return refFromPath(serviceOrRef, pathOrUrl);\n  }\n}\n\nfunction extractBucket(\n  host: string,\n  config?: FirebaseOptions\n): Location | null {\n  const bucketString = config?.[CONFIG_STORAGE_BUCKET_KEY];\n  if (bucketString == null) {\n    return null;\n  }\n  return Location.makeFromBucketSpec(bucketString, host);\n}\n\nexport function connectStorageEmulator(\n  storage: FirebaseStorageImpl,\n  host: string,\n  port: number,\n  options: {\n    mockUserToken?: EmulatorMockTokenOptions | string;\n  } = {}\n): void {\n  storage.host = `${host}:${port}`;\n  const useSsl = isCloudWorkstation(host);\n  // Workaround to get cookies in Firebase Studio\n  if (useSsl) {\n    void pingServer(`https://${storage.host}/b`);\n    updateEmulatorBanner('Storage', true);\n  }\n  storage._isUsingEmulator = true;\n  storage._protocol = useSsl ? 'https' : 'http';\n  const { mockUserToken } = options;\n  if (mockUserToken) {\n    storage._overrideAuthToken =\n      typeof mockUserToken === 'string'\n        ? mockUserToken\n        : createMockUserToken(mockUserToken, storage.app.options.projectId);\n  }\n}\n\n/**\n * A service that provides Firebase Storage Reference instances.\n * @param opt_url - gs:// url to a custom Storage Bucket\n *\n * @internal\n */\nexport class FirebaseStorageImpl implements FirebaseStorage {\n  _bucket: Location | null = null;\n  /**\n   * This string can be in the formats:\n   * - host\n   * - host:port\n   */\n  private _host: string = DEFAULT_HOST;\n  _protocol: string = 'https';\n  protected readonly _appId: string | null = null;\n  private readonly _requests: Set<Request<unknown>>;\n  private _deleted: boolean = false;\n  private _maxOperationRetryTime: number;\n  private _maxUploadRetryTime: number;\n  _overrideAuthToken?: string;\n\n  constructor(\n    /**\n     * FirebaseApp associated with this StorageService instance.\n     */\n    readonly app: FirebaseApp,\n    readonly _authProvider: Provider<FirebaseAuthInternalName>,\n    /**\n     * @internal\n     */\n    readonly _appCheckProvider: Provider<AppCheckInternalComponentName>,\n    /**\n     * @internal\n     */\n    readonly _url?: string,\n    readonly _firebaseVersion?: string,\n    public _isUsingEmulator = false\n  ) {\n    this._maxOperationRetryTime = DEFAULT_MAX_OPERATION_RETRY_TIME;\n    this._maxUploadRetryTime = DEFAULT_MAX_UPLOAD_RETRY_TIME;\n    this._requests = new Set();\n    if (_url != null) {\n      this._bucket = Location.makeFromBucketSpec(_url, this._host);\n    } else {\n      this._bucket = extractBucket(this._host, this.app.options);\n    }\n  }\n\n  /**\n   * The host string for this service, in the form of `host` or\n   * `host:port`.\n   */\n  get host(): string {\n    return this._host;\n  }\n\n  set host(host: string) {\n    this._host = host;\n    if (this._url != null) {\n      this._bucket = Location.makeFromBucketSpec(this._url, host);\n    } else {\n      this._bucket = extractBucket(host, this.app.options);\n    }\n  }\n\n  /**\n   * The maximum time to retry uploads in milliseconds.\n   */\n  get maxUploadRetryTime(): number {\n    return this._maxUploadRetryTime;\n  }\n\n  set maxUploadRetryTime(time: number) {\n    validateNumber(\n      'time',\n      /* minValue=*/ 0,\n      /* maxValue= */ Number.POSITIVE_INFINITY,\n      time\n    );\n    this._maxUploadRetryTime = time;\n  }\n\n  /**\n   * The maximum time to retry operations other than uploads or downloads in\n   * milliseconds.\n   */\n  get maxOperationRetryTime(): number {\n    return this._maxOperationRetryTime;\n  }\n\n  set maxOperationRetryTime(time: number) {\n    validateNumber(\n      'time',\n      /* minValue=*/ 0,\n      /* maxValue= */ Number.POSITIVE_INFINITY,\n      time\n    );\n    this._maxOperationRetryTime = time;\n  }\n\n  async _getAuthToken(): Promise<string | null> {\n    if (this._overrideAuthToken) {\n      return this._overrideAuthToken;\n    }\n    const auth = this._authProvider.getImmediate({ optional: true });\n    if (auth) {\n      const tokenData = await auth.getToken();\n      if (tokenData !== null) {\n        return tokenData.accessToken;\n      }\n    }\n    return null;\n  }\n\n  async _getAppCheckToken(): Promise<string | null> {\n    if (_isFirebaseServerApp(this.app) && this.app.settings.appCheckToken) {\n      return this.app.settings.appCheckToken;\n    }\n    const appCheck = this._appCheckProvider.getImmediate({ optional: true });\n    if (appCheck) {\n      const result = await appCheck.getToken();\n      // TODO: What do we want to do if there is an error getting the token?\n      // Context: appCheck.getToken() will never throw even if an error happened. In the error case, a dummy token will be\n      // returned along with an error field describing the error. In general, we shouldn't care about the error condition and just use\n      // the token (actual or dummy) to send requests.\n      return result.token;\n    }\n    return null;\n  }\n\n  /**\n   * Stop running requests and prevent more from being created.\n   */\n  _delete(): Promise<void> {\n    if (!this._deleted) {\n      this._deleted = true;\n      this._requests.forEach(request => request.cancel());\n      this._requests.clear();\n    }\n    return Promise.resolve();\n  }\n\n  /**\n   * Returns a new firebaseStorage.Reference object referencing this StorageService\n   * at the given Location.\n   */\n  _makeStorageReference(loc: Location): Reference {\n    return new Reference(this, loc);\n  }\n\n  /**\n   * @param requestInfo - HTTP RequestInfo object\n   * @param authToken - Firebase auth token\n   */\n  _makeRequest<I extends ConnectionType, O>(\n    requestInfo: RequestInfo<I, O>,\n    requestFactory: () => Connection<I>,\n    authToken: string | null,\n    appCheckToken: string | null,\n    retry = true\n  ): Request<O> {\n    if (!this._deleted) {\n      const request = makeRequest(\n        requestInfo,\n        this._appId,\n        authToken,\n        appCheckToken,\n        requestFactory,\n        this._firebaseVersion,\n        retry,\n        this._isUsingEmulator\n      );\n      this._requests.add(request);\n      // Request removes itself from set when complete.\n      request.getPromise().then(\n        () => this._requests.delete(request),\n        () => this._requests.delete(request)\n      );\n      return request;\n    } else {\n      return new FailRequest(appDeleted());\n    }\n  }\n\n  async makeRequestWithTokens<I extends ConnectionType, O>(\n    requestInfo: RequestInfo<I, O>,\n    requestFactory: () => Connection<I>\n  ): Promise<O> {\n    const [authToken, appCheckToken] = await Promise.all([\n      this._getAuthToken(),\n      this._getAppCheckToken()\n    ]);\n\n    return this._makeRequest(\n      requestInfo,\n      requestFactory,\n      authToken,\n      appCheckToken\n    ).getPromise();\n  }\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * Type constant for Firebase Storage.\n */\nexport const STORAGE_TYPE = 'storage';\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport { _getProvider, FirebaseApp, getApp } from '@firebase/app';\n\nimport {\n  ref as refInternal,\n  FirebaseStorageImpl,\n  connectStorageEmulator as connectEmulatorInternal\n} from './service';\nimport { Provider } from '@firebase/component';\n\nimport {\n  StorageReference,\n  FirebaseStorage,\n  UploadResult,\n  ListOptions,\n  ListResult,\n  UploadTask,\n  SettableMetadata,\n  UploadMetadata,\n  FullMetadata\n} from './public-types';\nimport { Metadata as MetadataInternal } from './metadata';\nimport {\n  uploadBytes as uploadBytesInternal,\n  uploadBytesResumable as uploadBytesResumableInternal,\n  uploadString as uploadStringInternal,\n  getMetadata as getMetadataInternal,\n  updateMetadata as updateMetadataInternal,\n  list as listInternal,\n  listAll as listAllInternal,\n  getDownloadURL as getDownloadURLInternal,\n  deleteObject as deleteObjectInternal,\n  Reference,\n  _getChild as _getChildInternal,\n  getBytesInternal\n} from './reference';\nimport { STORAGE_TYPE } from './constants';\nimport {\n  EmulatorMockTokenOptions,\n  getModularInstance,\n  getDefaultEmulatorHostnameAndPort\n} from '@firebase/util';\nimport { StringFormat } from './implementation/string';\n\nexport { EmulatorMockTokenOptions } from '@firebase/util';\n\nexport { StorageError, StorageErrorCode } from './implementation/error';\n\n/**\n * Public types.\n */\nexport * from './public-types';\n\nexport { Location as _Location } from './implementation/location';\nexport { UploadTask as _UploadTask } from './task';\nexport type { Reference as _Reference } from './reference';\nexport type { FirebaseStorageImpl as _FirebaseStorageImpl } from './service';\nexport { FbsBlob as _FbsBlob } from './implementation/blob';\nexport { dataFromString as _dataFromString } from './implementation/string';\nexport {\n  invalidRootOperation as _invalidRootOperation,\n  invalidArgument as _invalidArgument\n} from './implementation/error';\nexport {\n  TaskEvent as _TaskEvent,\n  TaskState as _TaskState\n} from './implementation/taskenums';\nexport { StringFormat };\n\n/**\n * Downloads the data at the object's location. Returns an error if the object\n * is not found.\n *\n * To use this functionality, you have to whitelist your app's origin in your\n * Cloud Storage bucket. See also\n * https://cloud.google.com/storage/docs/configuring-cors\n *\n * @public\n * @param ref - StorageReference where data should be downloaded.\n * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to\n * retrieve.\n * @returns A Promise containing the object's bytes\n */\nexport function getBytes(\n  ref: StorageReference,\n  maxDownloadSizeBytes?: number\n): Promise<ArrayBuffer> {\n  ref = getModularInstance(ref);\n  return getBytesInternal(ref as Reference, maxDownloadSizeBytes);\n}\n\n/**\n * Uploads data to this object's location.\n * The upload is not resumable.\n * @public\n * @param ref - {@link StorageReference} where data should be uploaded.\n * @param data - The data to upload.\n * @param metadata - Metadata for the data to upload.\n * @returns A Promise containing an UploadResult\n */\nexport function uploadBytes(\n  ref: StorageReference,\n  data: Blob | Uint8Array | ArrayBuffer,\n  metadata?: UploadMetadata\n): Promise<UploadResult> {\n  ref = getModularInstance(ref);\n  return uploadBytesInternal(\n    ref as Reference,\n    data,\n    metadata as MetadataInternal\n  );\n}\n\n/**\n * Uploads a string to this object's location.\n * The upload is not resumable.\n * @public\n * @param ref - {@link StorageReference} where string should be uploaded.\n * @param value - The string to upload.\n * @param format - The format of the string to upload.\n * @param metadata - Metadata for the string to upload.\n * @returns A Promise containing an UploadResult\n */\nexport function uploadString(\n  ref: StorageReference,\n  value: string,\n  format?: StringFormat,\n  metadata?: UploadMetadata\n): Promise<UploadResult> {\n  ref = getModularInstance(ref);\n  return uploadStringInternal(\n    ref as Reference,\n    value,\n    format,\n    metadata as MetadataInternal\n  );\n}\n\n/**\n * Uploads data to this object's location.\n * The upload can be paused and resumed, and exposes progress updates.\n * @public\n * @param ref - {@link StorageReference} where data should be uploaded.\n * @param data - The data to upload.\n * @param metadata - Metadata for the data to upload.\n * @returns An UploadTask\n */\nexport function uploadBytesResumable(\n  ref: StorageReference,\n  data: Blob | Uint8Array | ArrayBuffer,\n  metadata?: UploadMetadata\n): UploadTask {\n  ref = getModularInstance(ref);\n  return uploadBytesResumableInternal(\n    ref as Reference,\n    data,\n    metadata as MetadataInternal\n  ) as UploadTask;\n}\n\n/**\n * A `Promise` that resolves with the metadata for this object. If this\n * object doesn't exist or metadata cannot be retrieved, the promise is\n * rejected.\n * @public\n * @param ref - {@link StorageReference} to get metadata from.\n */\nexport function getMetadata(ref: StorageReference): Promise<FullMetadata> {\n  ref = getModularInstance(ref);\n  return getMetadataInternal(ref as Reference) as Promise<FullMetadata>;\n}\n\n/**\n * Updates the metadata for this object.\n * @public\n * @param ref - {@link StorageReference} to update metadata for.\n * @param metadata - The new metadata for the object.\n *     Only values that have been explicitly set will be changed. Explicitly\n *     setting a value to null will remove the metadata.\n * @returns A `Promise` that resolves with the new metadata for this object.\n */\nexport function updateMetadata(\n  ref: StorageReference,\n  metadata: SettableMetadata\n): Promise<FullMetadata> {\n  ref = getModularInstance(ref);\n  return updateMetadataInternal(\n    ref as Reference,\n    metadata as Partial<MetadataInternal>\n  ) as Promise<FullMetadata>;\n}\n\n/**\n * List items (files) and prefixes (folders) under this storage reference.\n *\n * List API is only available for Firebase Rules Version 2.\n *\n * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'\n * delimited folder structure.\n * Refer to GCS's List API if you want to learn more.\n *\n * To adhere to Firebase Rules's Semantics, Firebase Storage does not\n * support objects whose paths end with \"/\" or contain two consecutive\n * \"/\"s. Firebase Storage List API will filter these unsupported objects.\n * list() may fail if there are too many unsupported objects in the bucket.\n * @public\n *\n * @param ref - {@link StorageReference} to get list from.\n * @param options - See {@link ListOptions} for details.\n * @returns A `Promise` that resolves with the items and prefixes.\n *      `prefixes` contains references to sub-folders and `items`\n *      contains references to objects in this folder. `nextPageToken`\n *      can be used to get the rest of the results.\n */\nexport function list(\n  ref: StorageReference,\n  options?: ListOptions\n): Promise<ListResult> {\n  ref = getModularInstance(ref);\n  return listInternal(ref as Reference, options);\n}\n\n/**\n * List all items (files) and prefixes (folders) under this storage reference.\n *\n * This is a helper method for calling list() repeatedly until there are\n * no more results. The default pagination size is 1000.\n *\n * Note: The results may not be consistent if objects are changed while this\n * operation is running.\n *\n * Warning: `listAll` may potentially consume too many resources if there are\n * too many results.\n * @public\n * @param ref - {@link StorageReference} to get list from.\n *\n * @returns A `Promise` that resolves with all the items and prefixes under\n *      the current storage reference. `prefixes` contains references to\n *      sub-directories and `items` contains references to objects in this\n *      folder. `nextPageToken` is never returned.\n */\nexport function listAll(ref: StorageReference): Promise<ListResult> {\n  ref = getModularInstance(ref);\n  return listAllInternal(ref as Reference);\n}\n\n/**\n * Returns the download URL for the given {@link StorageReference}.\n * @public\n * @param ref - {@link StorageReference} to get the download URL for.\n * @returns A `Promise` that resolves with the download\n *     URL for this object.\n */\nexport function getDownloadURL(ref: StorageReference): Promise<string> {\n  ref = getModularInstance(ref);\n  return getDownloadURLInternal(ref as Reference);\n}\n\n/**\n * Deletes the object at this location.\n * @public\n * @param ref - {@link StorageReference} for object to delete.\n * @returns A `Promise` that resolves if the deletion succeeds.\n */\nexport function deleteObject(ref: StorageReference): Promise<void> {\n  ref = getModularInstance(ref);\n  return deleteObjectInternal(ref as Reference);\n}\n\n/**\n * Returns a {@link StorageReference} for the given url.\n * @param storage - {@link FirebaseStorage} instance.\n * @param url - URL. If empty, returns root reference.\n * @public\n */\nexport function ref(storage: FirebaseStorage, url?: string): StorageReference;\n/**\n * Returns a {@link StorageReference} for the given path in the\n * default bucket.\n * @param storageOrRef - {@link FirebaseStorage} or {@link StorageReference}.\n * @param pathOrUrlStorage - path. If empty, returns root reference (if {@link FirebaseStorage}\n * instance provided) or returns same reference (if {@link StorageReference} provided).\n * @public\n */\nexport function ref(\n  storageOrRef: FirebaseStorage | StorageReference,\n  path?: string\n): StorageReference;\nexport function ref(\n  serviceOrRef: FirebaseStorage | StorageReference,\n  pathOrUrl?: string\n): StorageReference | null {\n  serviceOrRef = getModularInstance(serviceOrRef);\n  return refInternal(\n    serviceOrRef as FirebaseStorageImpl | Reference,\n    pathOrUrl\n  );\n}\n\n/**\n * @internal\n */\nexport function _getChild(ref: StorageReference, childPath: string): Reference {\n  return _getChildInternal(ref as Reference, childPath);\n}\n\n/**\n * Gets a {@link FirebaseStorage} instance for the given Firebase app.\n * @public\n * @param app - Firebase app to get {@link FirebaseStorage} instance for.\n * @param bucketUrl - The gs:// url to your Firebase Storage Bucket.\n * If not passed, uses the app's default Storage Bucket.\n * @returns A {@link FirebaseStorage} instance.\n */\nexport function getStorage(\n  app: FirebaseApp = getApp(),\n  bucketUrl?: string\n): FirebaseStorage {\n  app = getModularInstance(app);\n  const storageProvider: Provider<'storage'> = _getProvider(app, STORAGE_TYPE);\n  const storageInstance = storageProvider.getImmediate({\n    identifier: bucketUrl\n  });\n  const emulator = getDefaultEmulatorHostnameAndPort('storage');\n  if (emulator) {\n    connectStorageEmulator(storageInstance, ...emulator);\n  }\n  return storageInstance;\n}\n\n/**\n * Modify this {@link FirebaseStorage} instance to communicate with the Cloud Storage emulator.\n *\n * @param storage - The {@link FirebaseStorage} instance\n * @param host - The emulator host (ex: localhost)\n * @param port - The emulator port (ex: 5001)\n * @param options - Emulator options. `options.mockUserToken` is the mock auth\n * token to use for unit testing Security Rules.\n * @public\n */\nexport function connectStorageEmulator(\n  storage: FirebaseStorage,\n  host: string,\n  port: number,\n  options: {\n    mockUserToken?: EmulatorMockTokenOptions | string;\n  } = {}\n): void {\n  connectEmulatorInternal(storage as FirebaseStorageImpl, host, port, options);\n}\n","/**\n * @license\n * Copyright 2021 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { StorageReference } from './public-types';\nimport { Reference, getStreamInternal } from './reference';\nimport { getModularInstance } from '@firebase/util';\n\n/**\n * Downloads the data at the object's location. Returns an error if the object\n * is not found.\n *\n * To use this functionality, you have to whitelist your app's origin in your\n * Cloud Storage bucket. See also\n * https://cloud.google.com/storage/docs/configuring-cors\n *\n * This API is not available in Node.\n *\n * @public\n * @param ref - StorageReference where data should be downloaded.\n * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to\n * retrieve.\n * @returns A Promise that resolves with a Blob containing the object's bytes\n */\n// eslint-disable-next-line @typescript-eslint/no-unused-vars\nexport function getBlob(\n  ref: StorageReference,\n  maxDownloadSizeBytes?: number\n): Promise<Blob> {\n  throw new Error('getBlob() is only available in Browser-like environments');\n}\n\n/**\n * Downloads the data at the object's location. Raises an error event if the\n * object is not found.\n *\n * This API is only available in Node.\n *\n * @public\n * @param ref - StorageReference where data should be downloaded.\n * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to\n * retrieve.\n * @returns A stream with the object's data as bytes\n */\nexport function getStream(\n  ref: StorageReference,\n  maxDownloadSizeBytes?: number\n): ReadableStream {\n  ref = getModularInstance(ref);\n  return getStreamInternal(ref as Reference, maxDownloadSizeBytes);\n}\n","/**\n * Cloud Storage for Firebase\n *\n * @packageDocumentation\n */\n\n/**\n * @license\n * Copyright 2021 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n// eslint-disable-next-line import/no-extraneous-dependencies\nimport {\n  _registerComponent,\n  registerVersion,\n  SDK_VERSION\n} from '@firebase/app';\n\nimport { FirebaseStorageImpl } from './service';\nimport {\n  Component,\n  ComponentType,\n  ComponentContainer,\n  InstanceFactoryOptions\n} from '@firebase/component';\n\nimport { name, version } from '../package.json';\n\nimport { FirebaseStorage } from './public-types';\nimport { STORAGE_TYPE } from './constants';\n\nexport * from './api';\nexport * from './api.node';\n\nfunction factory(\n  container: ComponentContainer,\n  { instanceIdentifier: url }: InstanceFactoryOptions\n): FirebaseStorage {\n  const app = container.getProvider('app').getImmediate();\n  const authProvider = container.getProvider('auth-internal');\n  const appCheckProvider = container.getProvider('app-check-internal');\n\n  return new FirebaseStorageImpl(\n    app,\n    authProvider,\n    appCheckProvider,\n    url,\n    SDK_VERSION\n  );\n}\n\nfunction registerStorage(): void {\n  _registerComponent(\n    new Component(\n      STORAGE_TYPE,\n      factory,\n      ComponentType.PUBLIC\n    ).setMultipleInstances(true)\n  );\n\n  registerVersion(name, 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\ No newline at end of file
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/index.node.esm.js b/frontend-old/node_modules/@firebase/storage/dist/node-esm/index.node.esm.js
new file mode 100644
index 0000000..7753b65
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/index.node.esm.js
@@ -0,0 +1,3681 @@
+import { _isFirebaseServerApp, _getProvider, getApp, _registerComponent, registerVersion, SDK_VERSION } from '@firebase/app';
+import { FirebaseError, isCloudWorkstation, pingServer, updateEmulatorBanner, createMockUserToken, getModularInstance, getDefaultEmulatorHostnameAndPort } from '@firebase/util';
+import { Component } from '@firebase/component';
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Constants used in the Firebase Storage library.
+ */
+/**
+ * Domain name for firebase storage.
+ */
+const DEFAULT_HOST = 'firebasestorage.googleapis.com';
+/**
+ * The key in Firebase config json for the storage bucket.
+ */
+const CONFIG_STORAGE_BUCKET_KEY = 'storageBucket';
+/**
+ * 2 minutes
+ *
+ * The timeout for all operations except upload.
+ */
+const DEFAULT_MAX_OPERATION_RETRY_TIME = 2 * 60 * 1000;
+/**
+ * 10 minutes
+ *
+ * The timeout for upload.
+ */
+const DEFAULT_MAX_UPLOAD_RETRY_TIME = 10 * 60 * 1000;
+/**
+ * 1 second
+ */
+const DEFAULT_MIN_SLEEP_TIME_MILLIS = 1000;
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * An error returned by the Firebase Storage SDK.
+ * @public
+ */
+class StorageError extends FirebaseError {
+    /**
+     * @param code - A `StorageErrorCode` string to be prefixed with 'storage/' and
+     *  added to the end of the message.
+     * @param message  - Error message.
+     * @param status_ - Corresponding HTTP Status Code
+     */
+    constructor(code, message, status_ = 0) {
+        super(prependCode(code), `Firebase Storage: ${message} (${prependCode(code)})`);
+        this.status_ = status_;
+        /**
+         * Stores custom error data unique to the `StorageError`.
+         */
+        this.customData = { serverResponse: null };
+        this._baseMessage = this.message;
+        // Without this, `instanceof StorageError`, in tests for example,
+        // returns false.
+        Object.setPrototypeOf(this, StorageError.prototype);
+    }
+    get status() {
+        return this.status_;
+    }
+    set status(status) {
+        this.status_ = status;
+    }
+    /**
+     * Compares a `StorageErrorCode` against this error's code, filtering out the prefix.
+     */
+    _codeEquals(code) {
+        return prependCode(code) === this.code;
+    }
+    /**
+     * Optional response message that was added by the server.
+     */
+    get serverResponse() {
+        return this.customData.serverResponse;
+    }
+    set serverResponse(serverResponse) {
+        this.customData.serverResponse = serverResponse;
+        if (this.customData.serverResponse) {
+            this.message = `${this._baseMessage}\n${this.customData.serverResponse}`;
+        }
+        else {
+            this.message = this._baseMessage;
+        }
+    }
+}
+/**
+ * @public
+ * Error codes that can be attached to `StorageError` objects.
+ */
+var StorageErrorCode;
+(function (StorageErrorCode) {
+    // Shared between all platforms
+    StorageErrorCode["UNKNOWN"] = "unknown";
+    StorageErrorCode["OBJECT_NOT_FOUND"] = "object-not-found";
+    StorageErrorCode["BUCKET_NOT_FOUND"] = "bucket-not-found";
+    StorageErrorCode["PROJECT_NOT_FOUND"] = "project-not-found";
+    StorageErrorCode["QUOTA_EXCEEDED"] = "quota-exceeded";
+    StorageErrorCode["UNAUTHENTICATED"] = "unauthenticated";
+    StorageErrorCode["UNAUTHORIZED"] = "unauthorized";
+    StorageErrorCode["UNAUTHORIZED_APP"] = "unauthorized-app";
+    StorageErrorCode["RETRY_LIMIT_EXCEEDED"] = "retry-limit-exceeded";
+    StorageErrorCode["INVALID_CHECKSUM"] = "invalid-checksum";
+    StorageErrorCode["CANCELED"] = "canceled";
+    // JS specific
+    StorageErrorCode["INVALID_EVENT_NAME"] = "invalid-event-name";
+    StorageErrorCode["INVALID_URL"] = "invalid-url";
+    StorageErrorCode["INVALID_DEFAULT_BUCKET"] = "invalid-default-bucket";
+    StorageErrorCode["NO_DEFAULT_BUCKET"] = "no-default-bucket";
+    StorageErrorCode["CANNOT_SLICE_BLOB"] = "cannot-slice-blob";
+    StorageErrorCode["SERVER_FILE_WRONG_SIZE"] = "server-file-wrong-size";
+    StorageErrorCode["NO_DOWNLOAD_URL"] = "no-download-url";
+    StorageErrorCode["INVALID_ARGUMENT"] = "invalid-argument";
+    StorageErrorCode["INVALID_ARGUMENT_COUNT"] = "invalid-argument-count";
+    StorageErrorCode["APP_DELETED"] = "app-deleted";
+    StorageErrorCode["INVALID_ROOT_OPERATION"] = "invalid-root-operation";
+    StorageErrorCode["INVALID_FORMAT"] = "invalid-format";
+    StorageErrorCode["INTERNAL_ERROR"] = "internal-error";
+    StorageErrorCode["UNSUPPORTED_ENVIRONMENT"] = "unsupported-environment";
+})(StorageErrorCode || (StorageErrorCode = {}));
+function prependCode(code) {
+    return 'storage/' + code;
+}
+function unknown() {
+    const message = 'An unknown error occurred, please check the error payload for ' +
+        'server response.';
+    return new StorageError(StorageErrorCode.UNKNOWN, message);
+}
+function objectNotFound(path) {
+    return new StorageError(StorageErrorCode.OBJECT_NOT_FOUND, "Object '" + path + "' does not exist.");
+}
+function quotaExceeded(bucket) {
+    return new StorageError(StorageErrorCode.QUOTA_EXCEEDED, "Quota for bucket '" +
+        bucket +
+        "' exceeded, please view quota on " +
+        'https://firebase.google.com/pricing/.');
+}
+function unauthenticated() {
+    const message = 'User is not authenticated, please authenticate using Firebase ' +
+        'Authentication and try again.';
+    return new StorageError(StorageErrorCode.UNAUTHENTICATED, message);
+}
+function unauthorizedApp() {
+    return new StorageError(StorageErrorCode.UNAUTHORIZED_APP, 'This app does not have permission to access Firebase Storage on this project.');
+}
+function unauthorized(path) {
+    return new StorageError(StorageErrorCode.UNAUTHORIZED, "User does not have permission to access '" + path + "'.");
+}
+function retryLimitExceeded() {
+    return new StorageError(StorageErrorCode.RETRY_LIMIT_EXCEEDED, 'Max retry time for operation exceeded, please try again.');
+}
+function canceled() {
+    return new StorageError(StorageErrorCode.CANCELED, 'User canceled the upload/download.');
+}
+function invalidUrl(url) {
+    return new StorageError(StorageErrorCode.INVALID_URL, "Invalid URL '" + url + "'.");
+}
+function invalidDefaultBucket(bucket) {
+    return new StorageError(StorageErrorCode.INVALID_DEFAULT_BUCKET, "Invalid default bucket '" + bucket + "'.");
+}
+function noDefaultBucket() {
+    return new StorageError(StorageErrorCode.NO_DEFAULT_BUCKET, 'No default bucket ' +
+        "found. Did you set the '" +
+        CONFIG_STORAGE_BUCKET_KEY +
+        "' property when initializing the app?");
+}
+function cannotSliceBlob() {
+    return new StorageError(StorageErrorCode.CANNOT_SLICE_BLOB, 'Cannot slice blob for upload. Please retry the upload.');
+}
+function serverFileWrongSize() {
+    return new StorageError(StorageErrorCode.SERVER_FILE_WRONG_SIZE, 'Server recorded incorrect upload file size, please retry the upload.');
+}
+function noDownloadURL() {
+    return new StorageError(StorageErrorCode.NO_DOWNLOAD_URL, 'The given file does not have any download URLs.');
+}
+/**
+ * @internal
+ */
+function invalidArgument(message) {
+    return new StorageError(StorageErrorCode.INVALID_ARGUMENT, message);
+}
+function appDeleted() {
+    return new StorageError(StorageErrorCode.APP_DELETED, 'The Firebase app was deleted.');
+}
+/**
+ * @param name - The name of the operation that was invalid.
+ *
+ * @internal
+ */
+function invalidRootOperation(name) {
+    return new StorageError(StorageErrorCode.INVALID_ROOT_OPERATION, "The operation '" +
+        name +
+        "' cannot be performed on a root reference, create a non-root " +
+        "reference using child, such as .child('file.png').");
+}
+/**
+ * @param format - The format that was not valid.
+ * @param message - A message describing the format violation.
+ */
+function invalidFormat(format, message) {
+    return new StorageError(StorageErrorCode.INVALID_FORMAT, "String does not match format '" + format + "': " + message);
+}
+/**
+ * @param message - A message describing the internal error.
+ */
+function internalError(message) {
+    throw new StorageError(StorageErrorCode.INTERNAL_ERROR, 'Internal error: ' + message);
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Firebase Storage location data.
+ *
+ * @internal
+ */
+class Location {
+    constructor(bucket, path) {
+        this.bucket = bucket;
+        this.path_ = path;
+    }
+    get path() {
+        return this.path_;
+    }
+    get isRoot() {
+        return this.path.length === 0;
+    }
+    fullServerUrl() {
+        const encode = encodeURIComponent;
+        return '/b/' + encode(this.bucket) + '/o/' + encode(this.path);
+    }
+    bucketOnlyServerUrl() {
+        const encode = encodeURIComponent;
+        return '/b/' + encode(this.bucket) + '/o';
+    }
+    static makeFromBucketSpec(bucketString, host) {
+        let bucketLocation;
+        try {
+            bucketLocation = Location.makeFromUrl(bucketString, host);
+        }
+        catch (e) {
+            // Not valid URL, use as-is. This lets you put bare bucket names in
+            // config.
+            return new Location(bucketString, '');
+        }
+        if (bucketLocation.path === '') {
+            return bucketLocation;
+        }
+        else {
+            throw invalidDefaultBucket(bucketString);
+        }
+    }
+    static makeFromUrl(url, host) {
+        let location = null;
+        const bucketDomain = '([A-Za-z0-9.\\-_]+)';
+        function gsModify(loc) {
+            if (loc.path.charAt(loc.path.length - 1) === '/') {
+                loc.path_ = loc.path_.slice(0, -1);
+            }
+        }
+        const gsPath = '(/(.*))?$';
+        const gsRegex = new RegExp('^gs://' + bucketDomain + gsPath, 'i');
+        const gsIndices = { bucket: 1, path: 3 };
+        function httpModify(loc) {
+            loc.path_ = decodeURIComponent(loc.path);
+        }
+        const version = 'v[A-Za-z0-9_]+';
+        const firebaseStorageHost = host.replace(/[.]/g, '\\.');
+        const firebaseStoragePath = '(/([^?#]*).*)?$';
+        const firebaseStorageRegExp = new RegExp(`^https?://${firebaseStorageHost}/${version}/b/${bucketDomain}/o${firebaseStoragePath}`, 'i');
+        const firebaseStorageIndices = { bucket: 1, path: 3 };
+        const cloudStorageHost = host === DEFAULT_HOST
+            ? '(?:storage.googleapis.com|storage.cloud.google.com)'
+            : host;
+        const cloudStoragePath = '([^?#]*)';
+        const cloudStorageRegExp = new RegExp(`^https?://${cloudStorageHost}/${bucketDomain}/${cloudStoragePath}`, 'i');
+        const cloudStorageIndices = { bucket: 1, path: 2 };
+        const groups = [
+            { regex: gsRegex, indices: gsIndices, postModify: gsModify },
+            {
+                regex: firebaseStorageRegExp,
+                indices: firebaseStorageIndices,
+                postModify: httpModify
+            },
+            {
+                regex: cloudStorageRegExp,
+                indices: cloudStorageIndices,
+                postModify: httpModify
+            }
+        ];
+        for (let i = 0; i < groups.length; i++) {
+            const group = groups[i];
+            const captures = group.regex.exec(url);
+            if (captures) {
+                const bucketValue = captures[group.indices.bucket];
+                let pathValue = captures[group.indices.path];
+                if (!pathValue) {
+                    pathValue = '';
+                }
+                location = new Location(bucketValue, pathValue);
+                group.postModify(location);
+                break;
+            }
+        }
+        if (location == null) {
+            throw invalidUrl(url);
+        }
+        return location;
+    }
+}
+
+/**
+ * A request whose promise always fails.
+ */
+class FailRequest {
+    constructor(error) {
+        this.promise_ = Promise.reject(error);
+    }
+    /** @inheritDoc */
+    getPromise() {
+        return this.promise_;
+    }
+    /** @inheritDoc */
+    cancel(_appDelete = false) { }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Accepts a callback for an action to perform (`doRequest`),
+ * and then a callback for when the backoff has completed (`backoffCompleteCb`).
+ * The callback sent to start requires an argument to call (`onRequestComplete`).
+ * When `start` calls `doRequest`, it passes a callback for when the request has
+ * completed, `onRequestComplete`. Based on this, the backoff continues, with
+ * another call to `doRequest` and the above loop continues until the timeout
+ * is hit, or a successful response occurs.
+ * @description
+ * @param doRequest Callback to perform request
+ * @param backoffCompleteCb Callback to call when backoff has been completed
+ */
+function start(doRequest, 
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+backoffCompleteCb, timeout) {
+    // TODO(andysoto): make this code cleaner (probably refactor into an actual
+    // type instead of a bunch of functions with state shared in the closure)
+    let waitSeconds = 1;
+    // Would type this as "number" but that doesn't work for Node so ¯\_(ツ)_/¯
+    // TODO: find a way to exclude Node type definition for storage because storage only works in browser
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    let retryTimeoutId = null;
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    let globalTimeoutId = null;
+    let hitTimeout = false;
+    let cancelState = 0;
+    function canceled() {
+        return cancelState === 2;
+    }
+    let triggeredCallback = false;
+    function triggerCallback(...args) {
+        if (!triggeredCallback) {
+            triggeredCallback = true;
+            backoffCompleteCb.apply(null, args);
+        }
+    }
+    function callWithDelay(millis) {
+        retryTimeoutId = setTimeout(() => {
+            retryTimeoutId = null;
+            doRequest(responseHandler, canceled());
+        }, millis);
+    }
+    function clearGlobalTimeout() {
+        if (globalTimeoutId) {
+            clearTimeout(globalTimeoutId);
+        }
+    }
+    function responseHandler(success, ...args) {
+        if (triggeredCallback) {
+            clearGlobalTimeout();
+            return;
+        }
+        if (success) {
+            clearGlobalTimeout();
+            triggerCallback.call(null, success, ...args);
+            return;
+        }
+        const mustStop = canceled() || hitTimeout;
+        if (mustStop) {
+            clearGlobalTimeout();
+            triggerCallback.call(null, success, ...args);
+            return;
+        }
+        if (waitSeconds < 64) {
+            /* TODO(andysoto): don't back off so quickly if we know we're offline. */
+            waitSeconds *= 2;
+        }
+        let waitMillis;
+        if (cancelState === 1) {
+            cancelState = 2;
+            waitMillis = 0;
+        }
+        else {
+            waitMillis = (waitSeconds + Math.random()) * 1000;
+        }
+        callWithDelay(waitMillis);
+    }
+    let stopped = false;
+    function stop(wasTimeout) {
+        if (stopped) {
+            return;
+        }
+        stopped = true;
+        clearGlobalTimeout();
+        if (triggeredCallback) {
+            return;
+        }
+        if (retryTimeoutId !== null) {
+            if (!wasTimeout) {
+                cancelState = 2;
+            }
+            clearTimeout(retryTimeoutId);
+            callWithDelay(0);
+        }
+        else {
+            if (!wasTimeout) {
+                cancelState = 1;
+            }
+        }
+    }
+    callWithDelay(0);
+    globalTimeoutId = setTimeout(() => {
+        hitTimeout = true;
+        stop(true);
+    }, timeout);
+    return stop;
+}
+/**
+ * Stops the retry loop from repeating.
+ * If the function is currently "in between" retries, it is invoked immediately
+ * with the second parameter as "true". Otherwise, it will be invoked once more
+ * after the current invocation finishes iff the current invocation would have
+ * triggered another retry.
+ */
+function stop(id) {
+    id(false);
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+function isJustDef(p) {
+    return p !== void 0;
+}
+// eslint-disable-next-line @typescript-eslint/ban-types
+function isFunction(p) {
+    return typeof p === 'function';
+}
+function isNonArrayObject(p) {
+    return typeof p === 'object' && !Array.isArray(p);
+}
+function isString(p) {
+    return typeof p === 'string' || p instanceof String;
+}
+function isNativeBlob(p) {
+    return isNativeBlobDefined() && p instanceof Blob;
+}
+function isNativeBlobDefined() {
+    return typeof Blob !== 'undefined';
+}
+function validateNumber(argument, minValue, maxValue, value) {
+    if (value < minValue) {
+        throw invalidArgument(`Invalid value for '${argument}'. Expected ${minValue} or greater.`);
+    }
+    if (value > maxValue) {
+        throw invalidArgument(`Invalid value for '${argument}'. Expected ${maxValue} or less.`);
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+function makeUrl(urlPart, host, protocol) {
+    let origin = host;
+    if (protocol == null) {
+        origin = `https://${host}`;
+    }
+    return `${protocol}://${origin}/v0${urlPart}`;
+}
+function makeQueryString(params) {
+    const encode = encodeURIComponent;
+    let queryPart = '?';
+    for (const key in params) {
+        if (params.hasOwnProperty(key)) {
+            const nextPart = encode(key) + '=' + encode(params[key]);
+            queryPart = queryPart + nextPart + '&';
+        }
+    }
+    // Chop off the extra '&' or '?' on the end
+    queryPart = queryPart.slice(0, -1);
+    return queryPart;
+}
+
+/**
+ * Error codes for requests made by the XhrIo wrapper.
+ */
+var ErrorCode;
+(function (ErrorCode) {
+    ErrorCode[ErrorCode["NO_ERROR"] = 0] = "NO_ERROR";
+    ErrorCode[ErrorCode["NETWORK_ERROR"] = 1] = "NETWORK_ERROR";
+    ErrorCode[ErrorCode["ABORT"] = 2] = "ABORT";
+})(ErrorCode || (ErrorCode = {}));
+
+/**
+ * @license
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Checks the status code to see if the action should be retried.
+ *
+ * @param status Current HTTP status code returned by server.
+ * @param additionalRetryCodes additional retry codes to check against
+ */
+function isRetryStatusCode(status, additionalRetryCodes) {
+    // The codes for which to retry came from this page:
+    // https://cloud.google.com/storage/docs/exponential-backoff
+    const isFiveHundredCode = status >= 500 && status < 600;
+    const extraRetryCodes = [
+        // Request Timeout: web server didn't receive full request in time.
+        408,
+        // Too Many Requests: you're getting rate-limited, basically.
+        429
+    ];
+    const isExtraRetryCode = extraRetryCodes.indexOf(status) !== -1;
+    const isAdditionalRetryCode = additionalRetryCodes.indexOf(status) !== -1;
+    return isFiveHundredCode || isExtraRetryCode || isAdditionalRetryCode;
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Handles network logic for all Storage Requests, including error reporting and
+ * retries with backoff.
+ *
+ * @param I - the type of the backend's network response.
+ * @param - O the output type used by the rest of the SDK. The conversion
+ * happens in the specified `callback_`.
+ */
+class NetworkRequest {
+    constructor(url_, method_, headers_, body_, successCodes_, additionalRetryCodes_, callback_, errorCallback_, timeout_, progressCallback_, connectionFactory_, retry = true, isUsingEmulator = false) {
+        this.url_ = url_;
+        this.method_ = method_;
+        this.headers_ = headers_;
+        this.body_ = body_;
+        this.successCodes_ = successCodes_;
+        this.additionalRetryCodes_ = additionalRetryCodes_;
+        this.callback_ = callback_;
+        this.errorCallback_ = errorCallback_;
+        this.timeout_ = timeout_;
+        this.progressCallback_ = progressCallback_;
+        this.connectionFactory_ = connectionFactory_;
+        this.retry = retry;
+        this.isUsingEmulator = isUsingEmulator;
+        this.pendingConnection_ = null;
+        this.backoffId_ = null;
+        this.canceled_ = false;
+        this.appDelete_ = false;
+        this.promise_ = new Promise((resolve, reject) => {
+            this.resolve_ = resolve;
+            this.reject_ = reject;
+            this.start_();
+        });
+    }
+    /**
+     * Actually starts the retry loop.
+     */
+    start_() {
+        const doTheRequest = (backoffCallback, canceled) => {
+            if (canceled) {
+                backoffCallback(false, new RequestEndStatus(false, null, true));
+                return;
+            }
+            const connection = this.connectionFactory_();
+            this.pendingConnection_ = connection;
+            const progressListener = progressEvent => {
+                const loaded = progressEvent.loaded;
+                const total = progressEvent.lengthComputable ? progressEvent.total : -1;
+                if (this.progressCallback_ !== null) {
+                    this.progressCallback_(loaded, total);
+                }
+            };
+            if (this.progressCallback_ !== null) {
+                connection.addUploadProgressListener(progressListener);
+            }
+            // connection.send() never rejects, so we don't need to have a error handler or use catch on the returned promise.
+            // eslint-disable-next-line @typescript-eslint/no-floating-promises
+            connection
+                .send(this.url_, this.method_, this.isUsingEmulator, this.body_, this.headers_)
+                .then(() => {
+                if (this.progressCallback_ !== null) {
+                    connection.removeUploadProgressListener(progressListener);
+                }
+                this.pendingConnection_ = null;
+                const hitServer = connection.getErrorCode() === ErrorCode.NO_ERROR;
+                const status = connection.getStatus();
+                if (!hitServer ||
+                    (isRetryStatusCode(status, this.additionalRetryCodes_) &&
+                        this.retry)) {
+                    const wasCanceled = connection.getErrorCode() === ErrorCode.ABORT;
+                    backoffCallback(false, new RequestEndStatus(false, null, wasCanceled));
+                    return;
+                }
+                const successCode = this.successCodes_.indexOf(status) !== -1;
+                backoffCallback(true, new RequestEndStatus(successCode, connection));
+            });
+        };
+        /**
+         * @param requestWentThrough - True if the request eventually went
+         *     through, false if it hit the retry limit or was canceled.
+         */
+        const backoffDone = (requestWentThrough, status) => {
+            const resolve = this.resolve_;
+            const reject = this.reject_;
+            const connection = status.connection;
+            if (status.wasSuccessCode) {
+                try {
+                    const result = this.callback_(connection, connection.getResponse());
+                    if (isJustDef(result)) {
+                        resolve(result);
+                    }
+                    else {
+                        resolve();
+                    }
+                }
+                catch (e) {
+                    reject(e);
+                }
+            }
+            else {
+                if (connection !== null) {
+                    const err = unknown();
+                    err.serverResponse = connection.getErrorText();
+                    if (this.errorCallback_) {
+                        reject(this.errorCallback_(connection, err));
+                    }
+                    else {
+                        reject(err);
+                    }
+                }
+                else {
+                    if (status.canceled) {
+                        const err = this.appDelete_ ? appDeleted() : canceled();
+                        reject(err);
+                    }
+                    else {
+                        const err = retryLimitExceeded();
+                        reject(err);
+                    }
+                }
+            }
+        };
+        if (this.canceled_) {
+            backoffDone(false, new RequestEndStatus(false, null, true));
+        }
+        else {
+            this.backoffId_ = start(doTheRequest, backoffDone, this.timeout_);
+        }
+    }
+    /** @inheritDoc */
+    getPromise() {
+        return this.promise_;
+    }
+    /** @inheritDoc */
+    cancel(appDelete) {
+        this.canceled_ = true;
+        this.appDelete_ = appDelete || false;
+        if (this.backoffId_ !== null) {
+            stop(this.backoffId_);
+        }
+        if (this.pendingConnection_ !== null) {
+            this.pendingConnection_.abort();
+        }
+    }
+}
+/**
+ * A collection of information about the result of a network request.
+ * @param opt_canceled - Defaults to false.
+ */
+class RequestEndStatus {
+    constructor(wasSuccessCode, connection, canceled) {
+        this.wasSuccessCode = wasSuccessCode;
+        this.connection = connection;
+        this.canceled = !!canceled;
+    }
+}
+function addAuthHeader_(headers, authToken) {
+    if (authToken !== null && authToken.length > 0) {
+        headers['Authorization'] = 'Firebase ' + authToken;
+    }
+}
+function addVersionHeader_(headers, firebaseVersion) {
+    headers['X-Firebase-Storage-Version'] =
+        'webjs/' + (firebaseVersion ?? 'AppManager');
+}
+function addGmpidHeader_(headers, appId) {
+    if (appId) {
+        headers['X-Firebase-GMPID'] = appId;
+    }
+}
+function addAppCheckHeader_(headers, appCheckToken) {
+    if (appCheckToken !== null) {
+        headers['X-Firebase-AppCheck'] = appCheckToken;
+    }
+}
+function makeRequest(requestInfo, appId, authToken, appCheckToken, requestFactory, firebaseVersion, retry = true, isUsingEmulator = false) {
+    const queryPart = makeQueryString(requestInfo.urlParams);
+    const url = requestInfo.url + queryPart;
+    const headers = Object.assign({}, requestInfo.headers);
+    addGmpidHeader_(headers, appId);
+    addAuthHeader_(headers, authToken);
+    addVersionHeader_(headers, firebaseVersion);
+    addAppCheckHeader_(headers, appCheckToken);
+    return new NetworkRequest(url, requestInfo.method, headers, requestInfo.body, requestInfo.successCodes, requestInfo.additionalRetryCodes, requestInfo.handler, requestInfo.errorHandler, requestInfo.timeout, requestInfo.progressCallback, requestFactory, retry, isUsingEmulator);
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+function getBlobBuilder() {
+    if (typeof BlobBuilder !== 'undefined') {
+        return BlobBuilder;
+    }
+    else if (typeof WebKitBlobBuilder !== 'undefined') {
+        return WebKitBlobBuilder;
+    }
+    else {
+        return undefined;
+    }
+}
+/**
+ * Concatenates one or more values together and converts them to a Blob.
+ *
+ * @param args The values that will make up the resulting blob.
+ * @return The blob.
+ */
+function getBlob$1(...args) {
+    const BlobBuilder = getBlobBuilder();
+    if (BlobBuilder !== undefined) {
+        const bb = new BlobBuilder();
+        for (let i = 0; i < args.length; i++) {
+            bb.append(args[i]);
+        }
+        return bb.getBlob();
+    }
+    else {
+        if (isNativeBlobDefined()) {
+            return new Blob(args);
+        }
+        else {
+            throw new StorageError(StorageErrorCode.UNSUPPORTED_ENVIRONMENT, "This browser doesn't seem to support creating Blobs");
+        }
+    }
+}
+/**
+ * Slices the blob. The returned blob contains data from the start byte
+ * (inclusive) till the end byte (exclusive). Negative indices cannot be used.
+ *
+ * @param blob The blob to be sliced.
+ * @param start Index of the starting byte.
+ * @param end Index of the ending byte.
+ * @return The blob slice or null if not supported.
+ */
+function sliceBlob(blob, start, end) {
+    if (blob.webkitSlice) {
+        return blob.webkitSlice(start, end);
+    }
+    else if (blob.mozSlice) {
+        return blob.mozSlice(start, end);
+    }
+    else if (blob.slice) {
+        return blob.slice(start, end);
+    }
+    return null;
+}
+
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/** Converts a Base64 encoded string to a binary string. */
+function decodeBase64(encoded) {
+    // Node actually doesn't validate base64 strings.
+    // A quick sanity check that is not a fool-proof validation
+    if (/[^-A-Za-z0-9+/=]/.test(encoded)) {
+        throw invalidFormat('base64', 'Invalid character found');
+    }
+    return Buffer.from(encoded, 'base64').toString('binary');
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * An enumeration of the possible string formats for upload.
+ * @public
+ */
+const StringFormat = {
+    /**
+     * Indicates the string should be interpreted "raw", that is, as normal text.
+     * The string will be interpreted as UTF-16, then uploaded as a UTF-8 byte
+     * sequence.
+     * Example: The string 'Hello! \\ud83d\\ude0a' becomes the byte sequence
+     * 48 65 6c 6c 6f 21 20 f0 9f 98 8a
+     */
+    RAW: 'raw',
+    /**
+     * Indicates the string should be interpreted as base64-encoded data.
+     * Padding characters (trailing '='s) are optional.
+     * Example: The string 'rWmO++E6t7/rlw==' becomes the byte sequence
+     * ad 69 8e fb e1 3a b7 bf eb 97
+     */
+    BASE64: 'base64',
+    /**
+     * Indicates the string should be interpreted as base64url-encoded data.
+     * Padding characters (trailing '='s) are optional.
+     * Example: The string 'rWmO--E6t7_rlw==' becomes the byte sequence
+     * ad 69 8e fb e1 3a b7 bf eb 97
+     */
+    BASE64URL: 'base64url',
+    /**
+     * Indicates the string is a data URL, such as one obtained from
+     * canvas.toDataURL().
+     * Example: the string 'data:application/octet-stream;base64,aaaa'
+     * becomes the byte sequence
+     * 69 a6 9a
+     * (the content-type "application/octet-stream" is also applied, but can
+     * be overridden in the metadata object).
+     */
+    DATA_URL: 'data_url'
+};
+class StringData {
+    constructor(data, contentType) {
+        this.data = data;
+        this.contentType = contentType || null;
+    }
+}
+/**
+ * @internal
+ */
+function dataFromString(format, stringData) {
+    switch (format) {
+        case StringFormat.RAW:
+            return new StringData(utf8Bytes_(stringData));
+        case StringFormat.BASE64:
+        case StringFormat.BASE64URL:
+            return new StringData(base64Bytes_(format, stringData));
+        case StringFormat.DATA_URL:
+            return new StringData(dataURLBytes_(stringData), dataURLContentType_(stringData));
+        // do nothing
+    }
+    // assert(false);
+    throw unknown();
+}
+function utf8Bytes_(value) {
+    const b = [];
+    for (let i = 0; i < value.length; i++) {
+        let c = value.charCodeAt(i);
+        if (c <= 127) {
+            b.push(c);
+        }
+        else {
+            if (c <= 2047) {
+                b.push(192 | (c >> 6), 128 | (c & 63));
+            }
+            else {
+                if ((c & 64512) === 55296) {
+                    // The start of a surrogate pair.
+                    const valid = i < value.length - 1 && (value.charCodeAt(i + 1) & 64512) === 56320;
+                    if (!valid) {
+                        // The second surrogate wasn't there.
+                        b.push(239, 191, 189);
+                    }
+                    else {
+                        const hi = c;
+                        const lo = value.charCodeAt(++i);
+                        c = 65536 | ((hi & 1023) << 10) | (lo & 1023);
+                        b.push(240 | (c >> 18), 128 | ((c >> 12) & 63), 128 | ((c >> 6) & 63), 128 | (c & 63));
+                    }
+                }
+                else {
+                    if ((c & 64512) === 56320) {
+                        // Invalid low surrogate.
+                        b.push(239, 191, 189);
+                    }
+                    else {
+                        b.push(224 | (c >> 12), 128 | ((c >> 6) & 63), 128 | (c & 63));
+                    }
+                }
+            }
+        }
+    }
+    return new Uint8Array(b);
+}
+function percentEncodedBytes_(value) {
+    let decoded;
+    try {
+        decoded = decodeURIComponent(value);
+    }
+    catch (e) {
+        throw invalidFormat(StringFormat.DATA_URL, 'Malformed data URL.');
+    }
+    return utf8Bytes_(decoded);
+}
+function base64Bytes_(format, value) {
+    switch (format) {
+        case StringFormat.BASE64: {
+            const hasMinus = value.indexOf('-') !== -1;
+            const hasUnder = value.indexOf('_') !== -1;
+            if (hasMinus || hasUnder) {
+                const invalidChar = hasMinus ? '-' : '_';
+                throw invalidFormat(format, "Invalid character '" +
+                    invalidChar +
+                    "' found: is it base64url encoded?");
+            }
+            break;
+        }
+        case StringFormat.BASE64URL: {
+            const hasPlus = value.indexOf('+') !== -1;
+            const hasSlash = value.indexOf('/') !== -1;
+            if (hasPlus || hasSlash) {
+                const invalidChar = hasPlus ? '+' : '/';
+                throw invalidFormat(format, "Invalid character '" + invalidChar + "' found: is it base64 encoded?");
+            }
+            value = value.replace(/-/g, '+').replace(/_/g, '/');
+            break;
+        }
+        // do nothing
+    }
+    let bytes;
+    try {
+        bytes = decodeBase64(value);
+    }
+    catch (e) {
+        if (e.message.includes('polyfill')) {
+            throw e;
+        }
+        throw invalidFormat(format, 'Invalid character found');
+    }
+    const array = new Uint8Array(bytes.length);
+    for (let i = 0; i < bytes.length; i++) {
+        array[i] = bytes.charCodeAt(i);
+    }
+    return array;
+}
+class DataURLParts {
+    constructor(dataURL) {
+        this.base64 = false;
+        this.contentType = null;
+        const matches = dataURL.match(/^data:([^,]+)?,/);
+        if (matches === null) {
+            throw invalidFormat(StringFormat.DATA_URL, "Must be formatted 'data:[<mediatype>][;base64],<data>");
+        }
+        const middle = matches[1] || null;
+        if (middle != null) {
+            this.base64 = endsWith(middle, ';base64');
+            this.contentType = this.base64
+                ? middle.substring(0, middle.length - ';base64'.length)
+                : middle;
+        }
+        this.rest = dataURL.substring(dataURL.indexOf(',') + 1);
+    }
+}
+function dataURLBytes_(dataUrl) {
+    const parts = new DataURLParts(dataUrl);
+    if (parts.base64) {
+        return base64Bytes_(StringFormat.BASE64, parts.rest);
+    }
+    else {
+        return percentEncodedBytes_(parts.rest);
+    }
+}
+function dataURLContentType_(dataUrl) {
+    const parts = new DataURLParts(dataUrl);
+    return parts.contentType;
+}
+function endsWith(s, end) {
+    const longEnough = s.length >= end.length;
+    if (!longEnough) {
+        return false;
+    }
+    return s.substring(s.length - end.length) === end;
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @param opt_elideCopy - If true, doesn't copy mutable input data
+ *     (e.g. Uint8Arrays). Pass true only if you know the objects will not be
+ *     modified after this blob's construction.
+ *
+ * @internal
+ */
+class FbsBlob {
+    constructor(data, elideCopy) {
+        let size = 0;
+        let blobType = '';
+        if (isNativeBlob(data)) {
+            this.data_ = data;
+            size = data.size;
+            blobType = data.type;
+        }
+        else if (data instanceof ArrayBuffer) {
+            if (elideCopy) {
+                this.data_ = new Uint8Array(data);
+            }
+            else {
+                this.data_ = new Uint8Array(data.byteLength);
+                this.data_.set(new Uint8Array(data));
+            }
+            size = this.data_.length;
+        }
+        else if (data instanceof Uint8Array) {
+            if (elideCopy) {
+                this.data_ = data;
+            }
+            else {
+                this.data_ = new Uint8Array(data.length);
+                this.data_.set(data);
+            }
+            size = data.length;
+        }
+        this.size_ = size;
+        this.type_ = blobType;
+    }
+    size() {
+        return this.size_;
+    }
+    type() {
+        return this.type_;
+    }
+    slice(startByte, endByte) {
+        if (isNativeBlob(this.data_)) {
+            const realBlob = this.data_;
+            const sliced = sliceBlob(realBlob, startByte, endByte);
+            if (sliced === null) {
+                return null;
+            }
+            return new FbsBlob(sliced);
+        }
+        else {
+            const slice = new Uint8Array(this.data_.buffer, startByte, endByte - startByte);
+            return new FbsBlob(slice, true);
+        }
+    }
+    static getBlob(...args) {
+        if (isNativeBlobDefined()) {
+            const blobby = args.map((val) => {
+                if (val instanceof FbsBlob) {
+                    return val.data_;
+                }
+                else {
+                    return val;
+                }
+            });
+            return new FbsBlob(getBlob$1.apply(null, blobby));
+        }
+        else {
+            const uint8Arrays = args.map((val) => {
+                if (isString(val)) {
+                    return dataFromString(StringFormat.RAW, val).data;
+                }
+                else {
+                    // Blobs don't exist, so this has to be a Uint8Array.
+                    return val.data_;
+                }
+            });
+            let finalLength = 0;
+            uint8Arrays.forEach((array) => {
+                finalLength += array.byteLength;
+            });
+            const merged = new Uint8Array(finalLength);
+            let index = 0;
+            uint8Arrays.forEach((array) => {
+                for (let i = 0; i < array.length; i++) {
+                    merged[index++] = array[i];
+                }
+            });
+            return new FbsBlob(merged, true);
+        }
+    }
+    uploadData() {
+        return this.data_;
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Returns the Object resulting from parsing the given JSON, or null if the
+ * given string does not represent a JSON object.
+ */
+function jsonObjectOrNull(s) {
+    let obj;
+    try {
+        obj = JSON.parse(s);
+    }
+    catch (e) {
+        return null;
+    }
+    if (isNonArrayObject(obj)) {
+        return obj;
+    }
+    else {
+        return null;
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Contains helper methods for manipulating paths.
+ */
+/**
+ * @return Null if the path is already at the root.
+ */
+function parent(path) {
+    if (path.length === 0) {
+        return null;
+    }
+    const index = path.lastIndexOf('/');
+    if (index === -1) {
+        return '';
+    }
+    const newPath = path.slice(0, index);
+    return newPath;
+}
+function child(path, childPath) {
+    const canonicalChildPath = childPath
+        .split('/')
+        .filter(component => component.length > 0)
+        .join('/');
+    if (path.length === 0) {
+        return canonicalChildPath;
+    }
+    else {
+        return path + '/' + canonicalChildPath;
+    }
+}
+/**
+ * Returns the last component of a path.
+ * '/foo/bar' -> 'bar'
+ * '/foo/bar/baz/' -> 'baz/'
+ * '/a' -> 'a'
+ */
+function lastComponent(path) {
+    const index = path.lastIndexOf('/', path.length - 2);
+    if (index === -1) {
+        return path;
+    }
+    else {
+        return path.slice(index + 1);
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+function noXform_(metadata, value) {
+    return value;
+}
+class Mapping {
+    constructor(server, local, writable, xform) {
+        this.server = server;
+        this.local = local || server;
+        this.writable = !!writable;
+        this.xform = xform || noXform_;
+    }
+}
+let mappings_ = null;
+function xformPath(fullPath) {
+    if (!isString(fullPath) || fullPath.length < 2) {
+        return fullPath;
+    }
+    else {
+        return lastComponent(fullPath);
+    }
+}
+function getMappings() {
+    if (mappings_) {
+        return mappings_;
+    }
+    const mappings = [];
+    mappings.push(new Mapping('bucket'));
+    mappings.push(new Mapping('generation'));
+    mappings.push(new Mapping('metageneration'));
+    mappings.push(new Mapping('name', 'fullPath', true));
+    function mappingsXformPath(_metadata, fullPath) {
+        return xformPath(fullPath);
+    }
+    const nameMapping = new Mapping('name');
+    nameMapping.xform = mappingsXformPath;
+    mappings.push(nameMapping);
+    /**
+     * Coerces the second param to a number, if it is defined.
+     */
+    function xformSize(_metadata, size) {
+        if (size !== undefined) {
+            return Number(size);
+        }
+        else {
+            return size;
+        }
+    }
+    const sizeMapping = new Mapping('size');
+    sizeMapping.xform = xformSize;
+    mappings.push(sizeMapping);
+    mappings.push(new Mapping('timeCreated'));
+    mappings.push(new Mapping('updated'));
+    mappings.push(new Mapping('md5Hash', null, true));
+    mappings.push(new Mapping('cacheControl', null, true));
+    mappings.push(new Mapping('contentDisposition', null, true));
+    mappings.push(new Mapping('contentEncoding', null, true));
+    mappings.push(new Mapping('contentLanguage', null, true));
+    mappings.push(new Mapping('contentType', null, true));
+    mappings.push(new Mapping('metadata', 'customMetadata', true));
+    mappings_ = mappings;
+    return mappings_;
+}
+function addRef(metadata, service) {
+    function generateRef() {
+        const bucket = metadata['bucket'];
+        const path = metadata['fullPath'];
+        const loc = new Location(bucket, path);
+        return service._makeStorageReference(loc);
+    }
+    Object.defineProperty(metadata, 'ref', { get: generateRef });
+}
+function fromResource(service, resource, mappings) {
+    const metadata = {};
+    metadata['type'] = 'file';
+    const len = mappings.length;
+    for (let i = 0; i < len; i++) {
+        const mapping = mappings[i];
+        metadata[mapping.local] = mapping.xform(metadata, resource[mapping.server]);
+    }
+    addRef(metadata, service);
+    return metadata;
+}
+function fromResourceString(service, resourceString, mappings) {
+    const obj = jsonObjectOrNull(resourceString);
+    if (obj === null) {
+        return null;
+    }
+    const resource = obj;
+    return fromResource(service, resource, mappings);
+}
+function downloadUrlFromResourceString(metadata, resourceString, host, protocol) {
+    const obj = jsonObjectOrNull(resourceString);
+    if (obj === null) {
+        return null;
+    }
+    if (!isString(obj['downloadTokens'])) {
+        // This can happen if objects are uploaded through GCS and retrieved
+        // through list, so we don't want to throw an Error.
+        return null;
+    }
+    const tokens = obj['downloadTokens'];
+    if (tokens.length === 0) {
+        return null;
+    }
+    const encode = encodeURIComponent;
+    const tokensList = tokens.split(',');
+    const urls = tokensList.map((token) => {
+        const bucket = metadata['bucket'];
+        const path = metadata['fullPath'];
+        const urlPart = '/b/' + encode(bucket) + '/o/' + encode(path);
+        const base = makeUrl(urlPart, host, protocol);
+        const queryString = makeQueryString({
+            alt: 'media',
+            token
+        });
+        return base + queryString;
+    });
+    return urls[0];
+}
+function toResourceString(metadata, mappings) {
+    const resource = {};
+    const len = mappings.length;
+    for (let i = 0; i < len; i++) {
+        const mapping = mappings[i];
+        if (mapping.writable) {
+            resource[mapping.server] = metadata[mapping.local];
+        }
+    }
+    return JSON.stringify(resource);
+}
+
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+const PREFIXES_KEY = 'prefixes';
+const ITEMS_KEY = 'items';
+function fromBackendResponse(service, bucket, resource) {
+    const listResult = {
+        prefixes: [],
+        items: [],
+        nextPageToken: resource['nextPageToken']
+    };
+    if (resource[PREFIXES_KEY]) {
+        for (const path of resource[PREFIXES_KEY]) {
+            const pathWithoutTrailingSlash = path.replace(/\/$/, '');
+            const reference = service._makeStorageReference(new Location(bucket, pathWithoutTrailingSlash));
+            listResult.prefixes.push(reference);
+        }
+    }
+    if (resource[ITEMS_KEY]) {
+        for (const item of resource[ITEMS_KEY]) {
+            const reference = service._makeStorageReference(new Location(bucket, item['name']));
+            listResult.items.push(reference);
+        }
+    }
+    return listResult;
+}
+function fromResponseString(service, bucket, resourceString) {
+    const obj = jsonObjectOrNull(resourceString);
+    if (obj === null) {
+        return null;
+    }
+    const resource = obj;
+    return fromBackendResponse(service, bucket, resource);
+}
+
+/**
+ * Contains a fully specified request.
+ *
+ * @param I - the type of the backend's network response.
+ * @param O - the output response type used by the rest of the SDK.
+ */
+class RequestInfo {
+    constructor(url, method, 
+    /**
+     * Returns the value with which to resolve the request's promise. Only called
+     * if the request is successful. Throw from this function to reject the
+     * returned Request's promise with the thrown error.
+     * Note: The XhrIo passed to this function may be reused after this callback
+     * returns. Do not keep a reference to it in any way.
+     */
+    handler, timeout) {
+        this.url = url;
+        this.method = method;
+        this.handler = handler;
+        this.timeout = timeout;
+        this.urlParams = {};
+        this.headers = {};
+        this.body = null;
+        this.errorHandler = null;
+        /**
+         * Called with the current number of bytes uploaded and total size (-1 if not
+         * computable) of the request body (i.e. used to report upload progress).
+         */
+        this.progressCallback = null;
+        this.successCodes = [200];
+        this.additionalRetryCodes = [];
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Throws the UNKNOWN StorageError if cndn is false.
+ */
+function handlerCheck(cndn) {
+    if (!cndn) {
+        throw unknown();
+    }
+}
+function metadataHandler(service, mappings) {
+    function handler(xhr, text) {
+        const metadata = fromResourceString(service, text, mappings);
+        handlerCheck(metadata !== null);
+        return metadata;
+    }
+    return handler;
+}
+function listHandler(service, bucket) {
+    function handler(xhr, text) {
+        const listResult = fromResponseString(service, bucket, text);
+        handlerCheck(listResult !== null);
+        return listResult;
+    }
+    return handler;
+}
+function downloadUrlHandler(service, mappings) {
+    function handler(xhr, text) {
+        const metadata = fromResourceString(service, text, mappings);
+        handlerCheck(metadata !== null);
+        return downloadUrlFromResourceString(metadata, text, service.host, service._protocol);
+    }
+    return handler;
+}
+function sharedErrorHandler(location) {
+    function errorHandler(xhr, err) {
+        let newErr;
+        if (xhr.getStatus() === 401) {
+            if (
+            // This exact message string is the only consistent part of the
+            // server's error response that identifies it as an App Check error.
+            xhr.getErrorText().includes('Firebase App Check token is invalid')) {
+                newErr = unauthorizedApp();
+            }
+            else {
+                newErr = unauthenticated();
+            }
+        }
+        else {
+            if (xhr.getStatus() === 402) {
+                newErr = quotaExceeded(location.bucket);
+            }
+            else {
+                if (xhr.getStatus() === 403) {
+                    newErr = unauthorized(location.path);
+                }
+                else {
+                    newErr = err;
+                }
+            }
+        }
+        newErr.status = xhr.getStatus();
+        newErr.serverResponse = err.serverResponse;
+        return newErr;
+    }
+    return errorHandler;
+}
+function objectErrorHandler(location) {
+    const shared = sharedErrorHandler(location);
+    function errorHandler(xhr, err) {
+        let newErr = shared(xhr, err);
+        if (xhr.getStatus() === 404) {
+            newErr = objectNotFound(location.path);
+        }
+        newErr.serverResponse = err.serverResponse;
+        return newErr;
+    }
+    return errorHandler;
+}
+function getMetadata$2(service, location, mappings) {
+    const urlPart = location.fullServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'GET';
+    const timeout = service.maxOperationRetryTime;
+    const requestInfo = new RequestInfo(url, method, metadataHandler(service, mappings), timeout);
+    requestInfo.errorHandler = objectErrorHandler(location);
+    return requestInfo;
+}
+function list$2(service, location, delimiter, pageToken, maxResults) {
+    const urlParams = {};
+    if (location.isRoot) {
+        urlParams['prefix'] = '';
+    }
+    else {
+        urlParams['prefix'] = location.path + '/';
+    }
+    if (delimiter && delimiter.length > 0) {
+        urlParams['delimiter'] = delimiter;
+    }
+    if (pageToken) {
+        urlParams['pageToken'] = pageToken;
+    }
+    if (maxResults) {
+        urlParams['maxResults'] = maxResults;
+    }
+    const urlPart = location.bucketOnlyServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'GET';
+    const timeout = service.maxOperationRetryTime;
+    const requestInfo = new RequestInfo(url, method, listHandler(service, location.bucket), timeout);
+    requestInfo.urlParams = urlParams;
+    requestInfo.errorHandler = sharedErrorHandler(location);
+    return requestInfo;
+}
+function getBytes$1(service, location, maxDownloadSizeBytes) {
+    const urlPart = location.fullServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol) + '?alt=media';
+    const method = 'GET';
+    const timeout = service.maxOperationRetryTime;
+    const requestInfo = new RequestInfo(url, method, (_, data) => data, timeout);
+    requestInfo.errorHandler = objectErrorHandler(location);
+    if (maxDownloadSizeBytes !== undefined) {
+        requestInfo.headers['Range'] = `bytes=0-${maxDownloadSizeBytes}`;
+        requestInfo.successCodes = [200 /* OK */, 206 /* Partial Content */];
+    }
+    return requestInfo;
+}
+function getDownloadUrl(service, location, mappings) {
+    const urlPart = location.fullServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'GET';
+    const timeout = service.maxOperationRetryTime;
+    const requestInfo = new RequestInfo(url, method, downloadUrlHandler(service, mappings), timeout);
+    requestInfo.errorHandler = objectErrorHandler(location);
+    return requestInfo;
+}
+function updateMetadata$2(service, location, metadata, mappings) {
+    const urlPart = location.fullServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'PATCH';
+    const body = toResourceString(metadata, mappings);
+    const headers = { 'Content-Type': 'application/json; charset=utf-8' };
+    const timeout = service.maxOperationRetryTime;
+    const requestInfo = new RequestInfo(url, method, metadataHandler(service, mappings), timeout);
+    requestInfo.headers = headers;
+    requestInfo.body = body;
+    requestInfo.errorHandler = objectErrorHandler(location);
+    return requestInfo;
+}
+function deleteObject$2(service, location) {
+    const urlPart = location.fullServerUrl();
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'DELETE';
+    const timeout = service.maxOperationRetryTime;
+    function handler(_xhr, _text) { }
+    const requestInfo = new RequestInfo(url, method, handler, timeout);
+    requestInfo.successCodes = [200, 204];
+    requestInfo.errorHandler = objectErrorHandler(location);
+    return requestInfo;
+}
+function determineContentType_(metadata, blob) {
+    return ((metadata && metadata['contentType']) ||
+        (blob && blob.type()) ||
+        'application/octet-stream');
+}
+function metadataForUpload_(location, blob, metadata) {
+    const metadataClone = Object.assign({}, metadata);
+    metadataClone['fullPath'] = location.path;
+    metadataClone['size'] = blob.size();
+    if (!metadataClone['contentType']) {
+        metadataClone['contentType'] = determineContentType_(null, blob);
+    }
+    return metadataClone;
+}
+/**
+ * Prepare RequestInfo for uploads as Content-Type: multipart.
+ */
+function multipartUpload(service, location, mappings, blob, metadata) {
+    const urlPart = location.bucketOnlyServerUrl();
+    const headers = {
+        'X-Goog-Upload-Protocol': 'multipart'
+    };
+    function genBoundary() {
+        let str = '';
+        for (let i = 0; i < 2; i++) {
+            str = str + Math.random().toString().slice(2);
+        }
+        return str;
+    }
+    const boundary = genBoundary();
+    headers['Content-Type'] = 'multipart/related; boundary=' + boundary;
+    const metadata_ = metadataForUpload_(location, blob, metadata);
+    const metadataString = toResourceString(metadata_, mappings);
+    const preBlobPart = '--' +
+        boundary +
+        '\r\n' +
+        'Content-Type: application/json; charset=utf-8\r\n\r\n' +
+        metadataString +
+        '\r\n--' +
+        boundary +
+        '\r\n' +
+        'Content-Type: ' +
+        metadata_['contentType'] +
+        '\r\n\r\n';
+    const postBlobPart = '\r\n--' + boundary + '--';
+    const body = FbsBlob.getBlob(preBlobPart, blob, postBlobPart);
+    if (body === null) {
+        throw cannotSliceBlob();
+    }
+    const urlParams = { name: metadata_['fullPath'] };
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'POST';
+    const timeout = service.maxUploadRetryTime;
+    const requestInfo = new RequestInfo(url, method, metadataHandler(service, mappings), timeout);
+    requestInfo.urlParams = urlParams;
+    requestInfo.headers = headers;
+    requestInfo.body = body.uploadData();
+    requestInfo.errorHandler = sharedErrorHandler(location);
+    return requestInfo;
+}
+/**
+ * @param current The number of bytes that have been uploaded so far.
+ * @param total The total number of bytes in the upload.
+ * @param opt_finalized True if the server has finished the upload.
+ * @param opt_metadata The upload metadata, should
+ *     only be passed if opt_finalized is true.
+ */
+class ResumableUploadStatus {
+    constructor(current, total, finalized, metadata) {
+        this.current = current;
+        this.total = total;
+        this.finalized = !!finalized;
+        this.metadata = metadata || null;
+    }
+}
+function checkResumeHeader_(xhr, allowed) {
+    let status = null;
+    try {
+        status = xhr.getResponseHeader('X-Goog-Upload-Status');
+    }
+    catch (e) {
+        handlerCheck(false);
+    }
+    const allowedStatus = allowed || ['active'];
+    handlerCheck(!!status && allowedStatus.indexOf(status) !== -1);
+    return status;
+}
+function createResumableUpload(service, location, mappings, blob, metadata) {
+    const urlPart = location.bucketOnlyServerUrl();
+    const metadataForUpload = metadataForUpload_(location, blob, metadata);
+    const urlParams = { name: metadataForUpload['fullPath'] };
+    const url = makeUrl(urlPart, service.host, service._protocol);
+    const method = 'POST';
+    const headers = {
+        'X-Goog-Upload-Protocol': 'resumable',
+        'X-Goog-Upload-Command': 'start',
+        'X-Goog-Upload-Header-Content-Length': `${blob.size()}`,
+        'X-Goog-Upload-Header-Content-Type': metadataForUpload['contentType'],
+        'Content-Type': 'application/json; charset=utf-8'
+    };
+    const body = toResourceString(metadataForUpload, mappings);
+    const timeout = service.maxUploadRetryTime;
+    function handler(xhr) {
+        checkResumeHeader_(xhr);
+        let url;
+        try {
+            url = xhr.getResponseHeader('X-Goog-Upload-URL');
+        }
+        catch (e) {
+            handlerCheck(false);
+        }
+        handlerCheck(isString(url));
+        return url;
+    }
+    const requestInfo = new RequestInfo(url, method, handler, timeout);
+    requestInfo.urlParams = urlParams;
+    requestInfo.headers = headers;
+    requestInfo.body = body;
+    requestInfo.errorHandler = sharedErrorHandler(location);
+    return requestInfo;
+}
+/**
+ * @param url From a call to fbs.requests.createResumableUpload.
+ */
+function getResumableUploadStatus(service, location, url, blob) {
+    const headers = { 'X-Goog-Upload-Command': 'query' };
+    function handler(xhr) {
+        const status = checkResumeHeader_(xhr, ['active', 'final']);
+        let sizeString = null;
+        try {
+            sizeString = xhr.getResponseHeader('X-Goog-Upload-Size-Received');
+        }
+        catch (e) {
+            handlerCheck(false);
+        }
+        if (!sizeString) {
+            // null or empty string
+            handlerCheck(false);
+        }
+        const size = Number(sizeString);
+        handlerCheck(!isNaN(size));
+        return new ResumableUploadStatus(size, blob.size(), status === 'final');
+    }
+    const method = 'POST';
+    const timeout = service.maxUploadRetryTime;
+    const requestInfo = new RequestInfo(url, method, handler, timeout);
+    requestInfo.headers = headers;
+    requestInfo.errorHandler = sharedErrorHandler(location);
+    return requestInfo;
+}
+/**
+ * Any uploads via the resumable upload API must transfer a number of bytes
+ * that is a multiple of this number.
+ */
+const RESUMABLE_UPLOAD_CHUNK_SIZE = 256 * 1024;
+/**
+ * @param url From a call to fbs.requests.createResumableUpload.
+ * @param chunkSize Number of bytes to upload.
+ * @param status The previous status.
+ *     If not passed or null, we start from the beginning.
+ * @throws fbs.Error If the upload is already complete, the passed in status
+ *     has a final size inconsistent with the blob, or the blob cannot be sliced
+ *     for upload.
+ */
+function continueResumableUpload(location, service, url, blob, chunkSize, mappings, status, progressCallback) {
+    // TODO(andysoto): standardize on internal asserts
+    // assert(!(opt_status && opt_status.finalized));
+    const status_ = new ResumableUploadStatus(0, 0);
+    if (status) {
+        status_.current = status.current;
+        status_.total = status.total;
+    }
+    else {
+        status_.current = 0;
+        status_.total = blob.size();
+    }
+    if (blob.size() !== status_.total) {
+        throw serverFileWrongSize();
+    }
+    const bytesLeft = status_.total - status_.current;
+    let bytesToUpload = bytesLeft;
+    if (chunkSize > 0) {
+        bytesToUpload = Math.min(bytesToUpload, chunkSize);
+    }
+    const startByte = status_.current;
+    const endByte = startByte + bytesToUpload;
+    let uploadCommand = '';
+    if (bytesToUpload === 0) {
+        uploadCommand = 'finalize';
+    }
+    else if (bytesLeft === bytesToUpload) {
+        uploadCommand = 'upload, finalize';
+    }
+    else {
+        uploadCommand = 'upload';
+    }
+    const headers = {
+        'X-Goog-Upload-Command': uploadCommand,
+        'X-Goog-Upload-Offset': `${status_.current}`
+    };
+    const body = blob.slice(startByte, endByte);
+    if (body === null) {
+        throw cannotSliceBlob();
+    }
+    function handler(xhr, text) {
+        // TODO(andysoto): Verify the MD5 of each uploaded range:
+        // the 'x-range-md5' header comes back with status code 308 responses.
+        // We'll only be able to bail out though, because you can't re-upload a
+        // range that you previously uploaded.
+        const uploadStatus = checkResumeHeader_(xhr, ['active', 'final']);
+        const newCurrent = status_.current + bytesToUpload;
+        const size = blob.size();
+        let metadata;
+        if (uploadStatus === 'final') {
+            metadata = metadataHandler(service, mappings)(xhr, text);
+        }
+        else {
+            metadata = null;
+        }
+        return new ResumableUploadStatus(newCurrent, size, uploadStatus === 'final', metadata);
+    }
+    const method = 'POST';
+    const timeout = service.maxUploadRetryTime;
+    const requestInfo = new RequestInfo(url, method, handler, timeout);
+    requestInfo.headers = headers;
+    requestInfo.body = body.uploadData();
+    requestInfo.progressCallback = progressCallback || null;
+    requestInfo.errorHandler = sharedErrorHandler(location);
+    return requestInfo;
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * An event that is triggered on a task.
+ * @internal
+ */
+const TaskEvent = {
+    /**
+     * For this event,
+     * <ul>
+     *   <li>The `next` function is triggered on progress updates and when the
+     *       task is paused/resumed with an `UploadTaskSnapshot` as the first
+     *       argument.</li>
+     *   <li>The `error` function is triggered if the upload is canceled or fails
+     *       for another reason.</li>
+     *   <li>The `complete` function is triggered if the upload completes
+     *       successfully.</li>
+     * </ul>
+     */
+    STATE_CHANGED: 'state_changed'
+};
+// type keys = keyof TaskState
+/**
+ * Represents the current state of a running upload.
+ * @internal
+ */
+const TaskState = {
+    /** The task is currently transferring data. */
+    RUNNING: 'running',
+    /** The task was paused by the user. */
+    PAUSED: 'paused',
+    /** The task completed successfully. */
+    SUCCESS: 'success',
+    /** The task was canceled. */
+    CANCELED: 'canceled',
+    /** The task failed with an error. */
+    ERROR: 'error'
+};
+function taskStateFromInternalTaskState(state) {
+    switch (state) {
+        case "running" /* InternalTaskState.RUNNING */:
+        case "pausing" /* InternalTaskState.PAUSING */:
+        case "canceling" /* InternalTaskState.CANCELING */:
+            return TaskState.RUNNING;
+        case "paused" /* InternalTaskState.PAUSED */:
+            return TaskState.PAUSED;
+        case "success" /* InternalTaskState.SUCCESS */:
+            return TaskState.SUCCESS;
+        case "canceled" /* InternalTaskState.CANCELED */:
+            return TaskState.CANCELED;
+        case "error" /* InternalTaskState.ERROR */:
+            return TaskState.ERROR;
+        default:
+            // TODO(andysoto): assert(false);
+            return TaskState.ERROR;
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+class Observer {
+    constructor(nextOrObserver, error, complete) {
+        const asFunctions = isFunction(nextOrObserver) || error != null || complete != null;
+        if (asFunctions) {
+            this.next = nextOrObserver;
+            this.error = error ?? undefined;
+            this.complete = complete ?? undefined;
+        }
+        else {
+            const observer = nextOrObserver;
+            this.next = observer.next;
+            this.error = observer.error;
+            this.complete = observer.complete;
+        }
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Returns a function that invokes f with its arguments asynchronously as a
+ * microtask, i.e. as soon as possible after the current script returns back
+ * into browser code.
+ */
+// eslint-disable-next-line @typescript-eslint/ban-types
+function async(f) {
+    return (...argsToForward) => {
+        // eslint-disable-next-line @typescript-eslint/no-floating-promises
+        Promise.resolve().then(() => f(...argsToForward));
+    };
+}
+
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/** An override for the text-based Connection. Used in tests. */
+let textFactoryOverride = null;
+/**
+ * Network layer that works in Node.
+ *
+ * This network implementation should not be used in browsers as it does not
+ * support progress updates.
+ */
+class FetchConnection {
+    constructor() {
+        this.errorText_ = '';
+        this.sent_ = false;
+        this.errorCode_ = ErrorCode.NO_ERROR;
+    }
+    async send(url, method, isUsingEmulator, body, headers) {
+        if (this.sent_) {
+            throw internalError('cannot .send() more than once');
+        }
+        this.sent_ = true;
+        try {
+            const response = await newFetch(url, method, isUsingEmulator, headers, body);
+            this.headers_ = response.headers;
+            this.statusCode_ = response.status;
+            this.errorCode_ = ErrorCode.NO_ERROR;
+            this.body_ = await response.arrayBuffer();
+        }
+        catch (e) {
+            this.errorText_ = e?.message;
+            // emulate XHR which sets status to 0 when encountering a network error
+            this.statusCode_ = 0;
+            this.errorCode_ = ErrorCode.NETWORK_ERROR;
+        }
+    }
+    getErrorCode() {
+        if (this.errorCode_ === undefined) {
+            throw internalError('cannot .getErrorCode() before receiving response');
+        }
+        return this.errorCode_;
+    }
+    getStatus() {
+        if (this.statusCode_ === undefined) {
+            throw internalError('cannot .getStatus() before receiving response');
+        }
+        return this.statusCode_;
+    }
+    getErrorText() {
+        return this.errorText_;
+    }
+    abort() {
+        // Not supported
+    }
+    getResponseHeader(header) {
+        if (!this.headers_) {
+            throw internalError('cannot .getResponseHeader() before receiving response');
+        }
+        return this.headers_.get(header);
+    }
+    addUploadProgressListener(listener) {
+        // Not supported
+    }
+    removeUploadProgressListener(listener) {
+        // Not supported
+    }
+}
+class FetchTextConnection extends FetchConnection {
+    getResponse() {
+        if (!this.body_) {
+            throw internalError('cannot .getResponse() before receiving response');
+        }
+        return Buffer.from(this.body_).toString('utf-8');
+    }
+}
+function newTextConnection() {
+    return textFactoryOverride
+        ? textFactoryOverride()
+        : new FetchTextConnection();
+}
+class FetchBytesConnection extends FetchConnection {
+    getResponse() {
+        if (!this.body_) {
+            throw internalError('cannot .getResponse() before sending');
+        }
+        return this.body_;
+    }
+}
+function newBytesConnection() {
+    return new FetchBytesConnection();
+}
+class FetchStreamConnection extends FetchConnection {
+    constructor() {
+        super(...arguments);
+        this.stream_ = null;
+    }
+    async send(url, method, isUsingEmulator, body, headers) {
+        if (this.sent_) {
+            throw internalError('cannot .send() more than once');
+        }
+        this.sent_ = true;
+        try {
+            const response = await newFetch(url, method, isUsingEmulator, headers, body);
+            this.headers_ = response.headers;
+            this.statusCode_ = response.status;
+            this.errorCode_ = ErrorCode.NO_ERROR;
+            this.stream_ = response.body;
+        }
+        catch (e) {
+            this.errorText_ = e?.message;
+            // emulate XHR which sets status to 0 when encountering a network error
+            this.statusCode_ = 0;
+            this.errorCode_ = ErrorCode.NETWORK_ERROR;
+        }
+    }
+    getResponse() {
+        if (!this.stream_) {
+            throw internalError('cannot .getResponse() before sending');
+        }
+        return this.stream_;
+    }
+}
+function newFetch(url, method, isUsingEmulator, headers, body) {
+    const fetchArgs = {
+        method,
+        headers: headers || {},
+        body: body
+    };
+    if (isCloudWorkstation(url) && isUsingEmulator) {
+        fetchArgs.credentials = 'include';
+    }
+    return fetch(url, fetchArgs);
+}
+function newStreamConnection() {
+    return new FetchStreamConnection();
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Represents a blob being uploaded. Can be used to pause/resume/cancel the
+ * upload and manage callbacks for various events.
+ * @internal
+ */
+class UploadTask {
+    isExponentialBackoffExpired() {
+        return this.sleepTime > this.maxSleepTime;
+    }
+    /**
+     * @param ref - The firebaseStorage.Reference object this task came
+     *     from, untyped to avoid cyclic dependencies.
+     * @param blob - The blob to upload.
+     */
+    constructor(ref, blob, metadata = null) {
+        /**
+         * Number of bytes transferred so far.
+         */
+        this._transferred = 0;
+        this._needToFetchStatus = false;
+        this._needToFetchMetadata = false;
+        this._observers = [];
+        this._error = undefined;
+        this._uploadUrl = undefined;
+        this._request = undefined;
+        this._chunkMultiplier = 1;
+        this._resolve = undefined;
+        this._reject = undefined;
+        this._ref = ref;
+        this._blob = blob;
+        this._metadata = metadata;
+        this._mappings = getMappings();
+        this._resumable = this._shouldDoResumable(this._blob);
+        this._state = "running" /* InternalTaskState.RUNNING */;
+        this._errorHandler = error => {
+            this._request = undefined;
+            this._chunkMultiplier = 1;
+            if (error._codeEquals(StorageErrorCode.CANCELED)) {
+                this._needToFetchStatus = true;
+                this.completeTransitions_();
+            }
+            else {
+                const backoffExpired = this.isExponentialBackoffExpired();
+                if (isRetryStatusCode(error.status, [])) {
+                    if (backoffExpired) {
+                        error = retryLimitExceeded();
+                    }
+                    else {
+                        this.sleepTime = Math.max(this.sleepTime * 2, DEFAULT_MIN_SLEEP_TIME_MILLIS);
+                        this._needToFetchStatus = true;
+                        this.completeTransitions_();
+                        return;
+                    }
+                }
+                this._error = error;
+                this._transition("error" /* InternalTaskState.ERROR */);
+            }
+        };
+        this._metadataErrorHandler = error => {
+            this._request = undefined;
+            if (error._codeEquals(StorageErrorCode.CANCELED)) {
+                this.completeTransitions_();
+            }
+            else {
+                this._error = error;
+                this._transition("error" /* InternalTaskState.ERROR */);
+            }
+        };
+        this.sleepTime = 0;
+        this.maxSleepTime = this._ref.storage.maxUploadRetryTime;
+        this._promise = new Promise((resolve, reject) => {
+            this._resolve = resolve;
+            this._reject = reject;
+            this._start();
+        });
+        // Prevent uncaught rejections on the internal promise from bubbling out
+        // to the top level with a dummy handler.
+        this._promise.then(null, () => { });
+    }
+    _makeProgressCallback() {
+        const sizeBefore = this._transferred;
+        return loaded => this._updateProgress(sizeBefore + loaded);
+    }
+    _shouldDoResumable(blob) {
+        return blob.size() > 256 * 1024;
+    }
+    _start() {
+        if (this._state !== "running" /* InternalTaskState.RUNNING */) {
+            // This can happen if someone pauses us in a resume callback, for example.
+            return;
+        }
+        if (this._request !== undefined) {
+            return;
+        }
+        if (this._resumable) {
+            if (this._uploadUrl === undefined) {
+                this._createResumable();
+            }
+            else {
+                if (this._needToFetchStatus) {
+                    this._fetchStatus();
+                }
+                else {
+                    if (this._needToFetchMetadata) {
+                        // Happens if we miss the metadata on upload completion.
+                        this._fetchMetadata();
+                    }
+                    else {
+                        this.pendingTimeout = setTimeout(() => {
+                            this.pendingTimeout = undefined;
+                            this._continueUpload();
+                        }, this.sleepTime);
+                    }
+                }
+            }
+        }
+        else {
+            this._oneShotUpload();
+        }
+    }
+    _resolveToken(callback) {
+        // eslint-disable-next-line @typescript-eslint/no-floating-promises
+        Promise.all([
+            this._ref.storage._getAuthToken(),
+            this._ref.storage._getAppCheckToken()
+        ]).then(([authToken, appCheckToken]) => {
+            switch (this._state) {
+                case "running" /* InternalTaskState.RUNNING */:
+                    callback(authToken, appCheckToken);
+                    break;
+                case "canceling" /* InternalTaskState.CANCELING */:
+                    this._transition("canceled" /* InternalTaskState.CANCELED */);
+                    break;
+                case "pausing" /* InternalTaskState.PAUSING */:
+                    this._transition("paused" /* InternalTaskState.PAUSED */);
+                    break;
+            }
+        });
+    }
+    // TODO(andysoto): assert false
+    _createResumable() {
+        this._resolveToken((authToken, appCheckToken) => {
+            const requestInfo = createResumableUpload(this._ref.storage, this._ref._location, this._mappings, this._blob, this._metadata);
+            const createRequest = this._ref.storage._makeRequest(requestInfo, newTextConnection, authToken, appCheckToken);
+            this._request = createRequest;
+            createRequest.getPromise().then((url) => {
+                this._request = undefined;
+                this._uploadUrl = url;
+                this._needToFetchStatus = false;
+                this.completeTransitions_();
+            }, this._errorHandler);
+        });
+    }
+    _fetchStatus() {
+        // TODO(andysoto): assert(this.uploadUrl_ !== null);
+        const url = this._uploadUrl;
+        this._resolveToken((authToken, appCheckToken) => {
+            const requestInfo = getResumableUploadStatus(this._ref.storage, this._ref._location, url, this._blob);
+            const statusRequest = this._ref.storage._makeRequest(requestInfo, newTextConnection, authToken, appCheckToken);
+            this._request = statusRequest;
+            statusRequest.getPromise().then(status => {
+                status = status;
+                this._request = undefined;
+                this._updateProgress(status.current);
+                this._needToFetchStatus = false;
+                if (status.finalized) {
+                    this._needToFetchMetadata = true;
+                }
+                this.completeTransitions_();
+            }, this._errorHandler);
+        });
+    }
+    _continueUpload() {
+        const chunkSize = RESUMABLE_UPLOAD_CHUNK_SIZE * this._chunkMultiplier;
+        const status = new ResumableUploadStatus(this._transferred, this._blob.size());
+        // TODO(andysoto): assert(this.uploadUrl_ !== null);
+        const url = this._uploadUrl;
+        this._resolveToken((authToken, appCheckToken) => {
+            let requestInfo;
+            try {
+                requestInfo = continueResumableUpload(this._ref._location, this._ref.storage, url, this._blob, chunkSize, this._mappings, status, this._makeProgressCallback());
+            }
+            catch (e) {
+                this._error = e;
+                this._transition("error" /* InternalTaskState.ERROR */);
+                return;
+            }
+            const uploadRequest = this._ref.storage._makeRequest(requestInfo, newTextConnection, authToken, appCheckToken, 
+            /*retry=*/ false // Upload requests should not be retried as each retry should be preceded by another query request. Which is handled in this file.
+            );
+            this._request = uploadRequest;
+            uploadRequest.getPromise().then((newStatus) => {
+                this._increaseMultiplier();
+                this._request = undefined;
+                this._updateProgress(newStatus.current);
+                if (newStatus.finalized) {
+                    this._metadata = newStatus.metadata;
+                    this._transition("success" /* InternalTaskState.SUCCESS */);
+                }
+                else {
+                    this.completeTransitions_();
+                }
+            }, this._errorHandler);
+        });
+    }
+    _increaseMultiplier() {
+        const currentSize = RESUMABLE_UPLOAD_CHUNK_SIZE * this._chunkMultiplier;
+        // Max chunk size is 32M.
+        if (currentSize * 2 < 32 * 1024 * 1024) {
+            this._chunkMultiplier *= 2;
+        }
+    }
+    _fetchMetadata() {
+        this._resolveToken((authToken, appCheckToken) => {
+            const requestInfo = getMetadata$2(this._ref.storage, this._ref._location, this._mappings);
+            const metadataRequest = this._ref.storage._makeRequest(requestInfo, newTextConnection, authToken, appCheckToken);
+            this._request = metadataRequest;
+            metadataRequest.getPromise().then(metadata => {
+                this._request = undefined;
+                this._metadata = metadata;
+                this._transition("success" /* InternalTaskState.SUCCESS */);
+            }, this._metadataErrorHandler);
+        });
+    }
+    _oneShotUpload() {
+        this._resolveToken((authToken, appCheckToken) => {
+            const requestInfo = multipartUpload(this._ref.storage, this._ref._location, this._mappings, this._blob, this._metadata);
+            const multipartRequest = this._ref.storage._makeRequest(requestInfo, newTextConnection, authToken, appCheckToken);
+            this._request = multipartRequest;
+            multipartRequest.getPromise().then(metadata => {
+                this._request = undefined;
+                this._metadata = metadata;
+                this._updateProgress(this._blob.size());
+                this._transition("success" /* InternalTaskState.SUCCESS */);
+            }, this._errorHandler);
+        });
+    }
+    _updateProgress(transferred) {
+        const old = this._transferred;
+        this._transferred = transferred;
+        // A progress update can make the "transferred" value smaller (e.g. a
+        // partial upload not completed by server, after which the "transferred"
+        // value may reset to the value at the beginning of the request).
+        if (this._transferred !== old) {
+            this._notifyObservers();
+        }
+    }
+    _transition(state) {
+        if (this._state === state) {
+            return;
+        }
+        switch (state) {
+            case "canceling" /* InternalTaskState.CANCELING */:
+            case "pausing" /* InternalTaskState.PAUSING */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.RUNNING ||
+                //        this.state_ === InternalTaskState.PAUSING);
+                this._state = state;
+                if (this._request !== undefined) {
+                    this._request.cancel();
+                }
+                else if (this.pendingTimeout) {
+                    clearTimeout(this.pendingTimeout);
+                    this.pendingTimeout = undefined;
+                    this.completeTransitions_();
+                }
+                break;
+            case "running" /* InternalTaskState.RUNNING */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.PAUSED ||
+                //        this.state_ === InternalTaskState.PAUSING);
+                const wasPaused = this._state === "paused" /* InternalTaskState.PAUSED */;
+                this._state = state;
+                if (wasPaused) {
+                    this._notifyObservers();
+                    this._start();
+                }
+                break;
+            case "paused" /* InternalTaskState.PAUSED */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.PAUSING);
+                this._state = state;
+                this._notifyObservers();
+                break;
+            case "canceled" /* InternalTaskState.CANCELED */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.PAUSED ||
+                //        this.state_ === InternalTaskState.CANCELING);
+                this._error = canceled();
+                this._state = state;
+                this._notifyObservers();
+                break;
+            case "error" /* InternalTaskState.ERROR */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.RUNNING ||
+                //        this.state_ === InternalTaskState.PAUSING ||
+                //        this.state_ === InternalTaskState.CANCELING);
+                this._state = state;
+                this._notifyObservers();
+                break;
+            case "success" /* InternalTaskState.SUCCESS */:
+                // TODO(andysoto):
+                // assert(this.state_ === InternalTaskState.RUNNING ||
+                //        this.state_ === InternalTaskState.PAUSING ||
+                //        this.state_ === InternalTaskState.CANCELING);
+                this._state = state;
+                this._notifyObservers();
+                break;
+        }
+    }
+    completeTransitions_() {
+        switch (this._state) {
+            case "pausing" /* InternalTaskState.PAUSING */:
+                this._transition("paused" /* InternalTaskState.PAUSED */);
+                break;
+            case "canceling" /* InternalTaskState.CANCELING */:
+                this._transition("canceled" /* InternalTaskState.CANCELED */);
+                break;
+            case "running" /* InternalTaskState.RUNNING */:
+                this._start();
+                break;
+        }
+    }
+    /**
+     * A snapshot of the current task state.
+     */
+    get snapshot() {
+        const externalState = taskStateFromInternalTaskState(this._state);
+        return {
+            bytesTransferred: this._transferred,
+            totalBytes: this._blob.size(),
+            state: externalState,
+            metadata: this._metadata,
+            task: this,
+            ref: this._ref
+        };
+    }
+    /**
+     * Adds a callback for an event.
+     * @param type - The type of event to listen for.
+     * @param nextOrObserver -
+     *     The `next` function, which gets called for each item in
+     *     the event stream, or an observer object with some or all of these three
+     *     properties (`next`, `error`, `complete`).
+     * @param error - A function that gets called with a `StorageError`
+     *     if the event stream ends due to an error.
+     * @param completed - A function that gets called if the
+     *     event stream ends normally.
+     * @returns
+     *     If only the event argument is passed, returns a function you can use to
+     *     add callbacks (see the examples above). If more than just the event
+     *     argument is passed, returns a function you can call to unregister the
+     *     callbacks.
+     */
+    on(type, nextOrObserver, error, completed) {
+        // Note: `type` isn't being used. Its type is also incorrect. TaskEvent should not be a string.
+        const observer = new Observer(nextOrObserver || undefined, error || undefined, completed || undefined);
+        this._addObserver(observer);
+        return () => {
+            this._removeObserver(observer);
+        };
+    }
+    /**
+     * This object behaves like a Promise, and resolves with its snapshot data
+     * when the upload completes.
+     * @param onFulfilled - The fulfillment callback. Promise chaining works as normal.
+     * @param onRejected - The rejection callback.
+     */
+    then(onFulfilled, onRejected) {
+        // These casts are needed so that TypeScript can infer the types of the
+        // resulting Promise.
+        return this._promise.then(onFulfilled, onRejected);
+    }
+    /**
+     * Equivalent to calling `then(null, onRejected)`.
+     */
+    catch(onRejected) {
+        return this.then(null, onRejected);
+    }
+    /**
+     * Adds the given observer.
+     */
+    _addObserver(observer) {
+        this._observers.push(observer);
+        this._notifyObserver(observer);
+    }
+    /**
+     * Removes the given observer.
+     */
+    _removeObserver(observer) {
+        const i = this._observers.indexOf(observer);
+        if (i !== -1) {
+            this._observers.splice(i, 1);
+        }
+    }
+    _notifyObservers() {
+        this._finishPromise();
+        const observers = this._observers.slice();
+        observers.forEach(observer => {
+            this._notifyObserver(observer);
+        });
+    }
+    _finishPromise() {
+        if (this._resolve !== undefined) {
+            let triggered = true;
+            switch (taskStateFromInternalTaskState(this._state)) {
+                case TaskState.SUCCESS:
+                    async(this._resolve.bind(null, this.snapshot))();
+                    break;
+                case TaskState.CANCELED:
+                case TaskState.ERROR:
+                    const toCall = this._reject;
+                    async(toCall.bind(null, this._error))();
+                    break;
+                default:
+                    triggered = false;
+                    break;
+            }
+            if (triggered) {
+                this._resolve = undefined;
+                this._reject = undefined;
+            }
+        }
+    }
+    _notifyObserver(observer) {
+        const externalState = taskStateFromInternalTaskState(this._state);
+        switch (externalState) {
+            case TaskState.RUNNING:
+            case TaskState.PAUSED:
+                if (observer.next) {
+                    async(observer.next.bind(observer, this.snapshot))();
+                }
+                break;
+            case TaskState.SUCCESS:
+                if (observer.complete) {
+                    async(observer.complete.bind(observer))();
+                }
+                break;
+            case TaskState.CANCELED:
+            case TaskState.ERROR:
+                if (observer.error) {
+                    async(observer.error.bind(observer, this._error))();
+                }
+                break;
+            default:
+                // TODO(andysoto): assert(false);
+                if (observer.error) {
+                    async(observer.error.bind(observer, this._error))();
+                }
+        }
+    }
+    /**
+     * Resumes a paused task. Has no effect on a currently running or failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    resume() {
+        const valid = this._state === "paused" /* InternalTaskState.PAUSED */ ||
+            this._state === "pausing" /* InternalTaskState.PAUSING */;
+        if (valid) {
+            this._transition("running" /* InternalTaskState.RUNNING */);
+        }
+        return valid;
+    }
+    /**
+     * Pauses a currently running task. Has no effect on a paused or failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    pause() {
+        const valid = this._state === "running" /* InternalTaskState.RUNNING */;
+        if (valid) {
+            this._transition("pausing" /* InternalTaskState.PAUSING */);
+        }
+        return valid;
+    }
+    /**
+     * Cancels a currently running or paused task. Has no effect on a complete or
+     * failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    cancel() {
+        const valid = this._state === "running" /* InternalTaskState.RUNNING */ ||
+            this._state === "pausing" /* InternalTaskState.PAUSING */;
+        if (valid) {
+            this._transition("canceling" /* InternalTaskState.CANCELING */);
+        }
+        return valid;
+    }
+}
+
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Provides methods to interact with a bucket in the Firebase Storage service.
+ * @internal
+ * @param _location - An fbs.location, or the URL at
+ *     which to base this object, in one of the following forms:
+ *         gs://<bucket>/<object-path>
+ *         http[s]://firebasestorage.googleapis.com/
+ *                     <api-version>/b/<bucket>/o/<object-path>
+ *     Any query or fragment strings will be ignored in the http[s]
+ *     format. If no value is passed, the storage object will use a URL based on
+ *     the project ID of the base firebase.App instance.
+ */
+class Reference {
+    constructor(_service, location) {
+        this._service = _service;
+        if (location instanceof Location) {
+            this._location = location;
+        }
+        else {
+            this._location = Location.makeFromUrl(location, _service.host);
+        }
+    }
+    /**
+     * Returns the URL for the bucket and path this object references,
+     *     in the form gs://<bucket>/<object-path>
+     * @override
+     */
+    toString() {
+        return 'gs://' + this._location.bucket + '/' + this._location.path;
+    }
+    _newRef(service, location) {
+        return new Reference(service, location);
+    }
+    /**
+     * A reference to the root of this object's bucket.
+     */
+    get root() {
+        const location = new Location(this._location.bucket, '');
+        return this._newRef(this._service, location);
+    }
+    /**
+     * The name of the bucket containing this reference's object.
+     */
+    get bucket() {
+        return this._location.bucket;
+    }
+    /**
+     * The full path of this object.
+     */
+    get fullPath() {
+        return this._location.path;
+    }
+    /**
+     * The short name of this object, which is the last component of the full path.
+     * For example, if fullPath is 'full/path/image.png', name is 'image.png'.
+     */
+    get name() {
+        return lastComponent(this._location.path);
+    }
+    /**
+     * The `StorageService` instance this `StorageReference` is associated with.
+     */
+    get storage() {
+        return this._service;
+    }
+    /**
+     * A `StorageReference` pointing to the parent location of this `StorageReference`, or null if
+     * this reference is the root.
+     */
+    get parent() {
+        const newPath = parent(this._location.path);
+        if (newPath === null) {
+            return null;
+        }
+        const location = new Location(this._location.bucket, newPath);
+        return new Reference(this._service, location);
+    }
+    /**
+     * Utility function to throw an error in methods that do not accept a root reference.
+     */
+    _throwIfRoot(name) {
+        if (this._location.path === '') {
+            throw invalidRootOperation(name);
+        }
+    }
+}
+/**
+ * Download the bytes at the object's location.
+ * @returns A Promise containing the downloaded bytes.
+ */
+function getBytesInternal(ref, maxDownloadSizeBytes) {
+    ref._throwIfRoot('getBytes');
+    const requestInfo = getBytes$1(ref.storage, ref._location, maxDownloadSizeBytes);
+    return ref.storage
+        .makeRequestWithTokens(requestInfo, newBytesConnection)
+        .then(bytes => maxDownloadSizeBytes !== undefined
+        ? // GCS may not honor the Range header for small files
+            bytes.slice(0, maxDownloadSizeBytes)
+        : bytes);
+}
+/** Stream the bytes at the object's location. */
+function getStreamInternal(ref, maxDownloadSizeBytes) {
+    ref._throwIfRoot('getStream');
+    const requestInfo = getBytes$1(ref.storage, ref._location, maxDownloadSizeBytes);
+    // Transforms the stream so that only `maxDownloadSizeBytes` bytes are piped to the result
+    const newMaxSizeTransform = (n) => {
+        let missingBytes = n;
+        return {
+            transform(chunk, controller) {
+                // GCS may not honor the Range header for small files
+                if (chunk.length < missingBytes) {
+                    controller.enqueue(chunk);
+                    missingBytes -= chunk.length;
+                }
+                else {
+                    controller.enqueue(chunk.slice(0, missingBytes));
+                    controller.terminate();
+                }
+            }
+        };
+    };
+    const result = maxDownloadSizeBytes !== undefined
+        ? new TransformStream(newMaxSizeTransform(maxDownloadSizeBytes))
+        : new TransformStream(); // The default transformer forwards all chunks to its readable side
+    ref.storage
+        .makeRequestWithTokens(requestInfo, newStreamConnection)
+        .then(readableStream => readableStream.pipeThrough(result))
+        .catch(err => result.writable.abort(err));
+    return result.readable;
+}
+/**
+ * Uploads data to this object's location.
+ * The upload is not resumable.
+ *
+ * @param ref - StorageReference where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the newly uploaded data.
+ * @returns A Promise containing an UploadResult
+ */
+function uploadBytes$1(ref, data, metadata) {
+    ref._throwIfRoot('uploadBytes');
+    const requestInfo = multipartUpload(ref.storage, ref._location, getMappings(), new FbsBlob(data, true), metadata);
+    return ref.storage
+        .makeRequestWithTokens(requestInfo, newTextConnection)
+        .then(finalMetadata => {
+        return {
+            metadata: finalMetadata,
+            ref
+        };
+    });
+}
+/**
+ * Uploads data to this object's location.
+ * The upload can be paused and resumed, and exposes progress updates.
+ * @public
+ * @param ref - StorageReference where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the newly uploaded data.
+ * @returns An UploadTask
+ */
+function uploadBytesResumable$1(ref, data, metadata) {
+    ref._throwIfRoot('uploadBytesResumable');
+    return new UploadTask(ref, new FbsBlob(data), metadata);
+}
+/**
+ * Uploads a string to this object's location.
+ * The upload is not resumable.
+ * @public
+ * @param ref - StorageReference where string should be uploaded.
+ * @param value - The string to upload.
+ * @param format - The format of the string to upload.
+ * @param metadata - Metadata for the newly uploaded string.
+ * @returns A Promise containing an UploadResult
+ */
+function uploadString$1(ref, value, format = StringFormat.RAW, metadata) {
+    ref._throwIfRoot('uploadString');
+    const data = dataFromString(format, value);
+    const metadataClone = { ...metadata };
+    if (metadataClone['contentType'] == null && data.contentType != null) {
+        metadataClone['contentType'] = data.contentType;
+    }
+    return uploadBytes$1(ref, data.data, metadataClone);
+}
+/**
+ * List all items (files) and prefixes (folders) under this storage reference.
+ *
+ * This is a helper method for calling list() repeatedly until there are
+ * no more results. The default pagination size is 1000.
+ *
+ * Note: The results may not be consistent if objects are changed while this
+ * operation is running.
+ *
+ * Warning: listAll may potentially consume too many resources if there are
+ * too many results.
+ * @public
+ * @param ref - StorageReference to get list from.
+ *
+ * @returns A Promise that resolves with all the items and prefixes under
+ *      the current storage reference. `prefixes` contains references to
+ *      sub-directories and `items` contains references to objects in this
+ *      folder. `nextPageToken` is never returned.
+ */
+function listAll$1(ref) {
+    const accumulator = {
+        prefixes: [],
+        items: []
+    };
+    return listAllHelper(ref, accumulator).then(() => accumulator);
+}
+/**
+ * Separated from listAll because async functions can't use "arguments".
+ * @param ref
+ * @param accumulator
+ * @param pageToken
+ */
+async function listAllHelper(ref, accumulator, pageToken) {
+    const opt = {
+        // maxResults is 1000 by default.
+        pageToken
+    };
+    const nextPage = await list$1(ref, opt);
+    accumulator.prefixes.push(...nextPage.prefixes);
+    accumulator.items.push(...nextPage.items);
+    if (nextPage.nextPageToken != null) {
+        await listAllHelper(ref, accumulator, nextPage.nextPageToken);
+    }
+}
+/**
+ * List items (files) and prefixes (folders) under this storage reference.
+ *
+ * List API is only available for Firebase Rules Version 2.
+ *
+ * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'
+ * delimited folder structure.
+ * Refer to GCS's List API if you want to learn more.
+ *
+ * To adhere to Firebase Rules's Semantics, Firebase Storage does not
+ * support objects whose paths end with "/" or contain two consecutive
+ * "/"s. Firebase Storage List API will filter these unsupported objects.
+ * list() may fail if there are too many unsupported objects in the bucket.
+ * @public
+ *
+ * @param ref - StorageReference to get list from.
+ * @param options - See ListOptions for details.
+ * @returns A Promise that resolves with the items and prefixes.
+ *      `prefixes` contains references to sub-folders and `items`
+ *      contains references to objects in this folder. `nextPageToken`
+ *      can be used to get the rest of the results.
+ */
+function list$1(ref, options) {
+    if (options != null) {
+        if (typeof options.maxResults === 'number') {
+            validateNumber('options.maxResults', 
+            /* minValue= */ 1, 
+            /* maxValue= */ 1000, options.maxResults);
+        }
+    }
+    const op = options || {};
+    const requestInfo = list$2(ref.storage, ref._location, 
+    /*delimiter= */ '/', op.pageToken, op.maxResults);
+    return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);
+}
+/**
+ * A `Promise` that resolves with the metadata for this object. If this
+ * object doesn't exist or metadata cannot be retrieved, the promise is
+ * rejected.
+ * @public
+ * @param ref - StorageReference to get metadata from.
+ */
+function getMetadata$1(ref) {
+    ref._throwIfRoot('getMetadata');
+    const requestInfo = getMetadata$2(ref.storage, ref._location, getMappings());
+    return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);
+}
+/**
+ * Updates the metadata for this object.
+ * @public
+ * @param ref - StorageReference to update metadata for.
+ * @param metadata - The new metadata for the object.
+ *     Only values that have been explicitly set will be changed. Explicitly
+ *     setting a value to null will remove the metadata.
+ * @returns A `Promise` that resolves
+ *     with the new metadata for this object.
+ *     See `firebaseStorage.Reference.prototype.getMetadata`
+ */
+function updateMetadata$1(ref, metadata) {
+    ref._throwIfRoot('updateMetadata');
+    const requestInfo = updateMetadata$2(ref.storage, ref._location, metadata, getMappings());
+    return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);
+}
+/**
+ * Returns the download URL for the given Reference.
+ * @public
+ * @returns A `Promise` that resolves with the download
+ *     URL for this object.
+ */
+function getDownloadURL$1(ref) {
+    ref._throwIfRoot('getDownloadURL');
+    const requestInfo = getDownloadUrl(ref.storage, ref._location, getMappings());
+    return ref.storage
+        .makeRequestWithTokens(requestInfo, newTextConnection)
+        .then(url => {
+        if (url === null) {
+            throw noDownloadURL();
+        }
+        return url;
+    });
+}
+/**
+ * Deletes the object at this location.
+ * @public
+ * @param ref - StorageReference for object to delete.
+ * @returns A `Promise` that resolves if the deletion succeeds.
+ */
+function deleteObject$1(ref) {
+    ref._throwIfRoot('deleteObject');
+    const requestInfo = deleteObject$2(ref.storage, ref._location);
+    return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);
+}
+/**
+ * Returns reference for object obtained by appending `childPath` to `ref`.
+ *
+ * @param ref - StorageReference to get child of.
+ * @param childPath - Child path from provided ref.
+ * @returns A reference to the object obtained by
+ * appending childPath, removing any duplicate, beginning, or trailing
+ * slashes.
+ *
+ */
+function _getChild$1(ref, childPath) {
+    const newPath = child(ref._location.path, childPath);
+    const location = new Location(ref._location.bucket, newPath);
+    return new Reference(ref.storage, location);
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+function isUrl(path) {
+    return /^[A-Za-z]+:\/\//.test(path);
+}
+/**
+ * Returns a firebaseStorage.Reference for the given url.
+ */
+function refFromURL(service, url) {
+    return new Reference(service, url);
+}
+/**
+ * Returns a firebaseStorage.Reference for the given path in the default
+ * bucket.
+ */
+function refFromPath(ref, path) {
+    if (ref instanceof FirebaseStorageImpl) {
+        const service = ref;
+        if (service._bucket == null) {
+            throw noDefaultBucket();
+        }
+        const reference = new Reference(service, service._bucket);
+        if (path != null) {
+            return refFromPath(reference, path);
+        }
+        else {
+            return reference;
+        }
+    }
+    else {
+        // ref is a Reference
+        if (path !== undefined) {
+            return _getChild$1(ref, path);
+        }
+        else {
+            return ref;
+        }
+    }
+}
+function ref$1(serviceOrRef, pathOrUrl) {
+    if (pathOrUrl && isUrl(pathOrUrl)) {
+        if (serviceOrRef instanceof FirebaseStorageImpl) {
+            return refFromURL(serviceOrRef, pathOrUrl);
+        }
+        else {
+            throw invalidArgument('To use ref(service, url), the first argument must be a Storage instance.');
+        }
+    }
+    else {
+        return refFromPath(serviceOrRef, pathOrUrl);
+    }
+}
+function extractBucket(host, config) {
+    const bucketString = config?.[CONFIG_STORAGE_BUCKET_KEY];
+    if (bucketString == null) {
+        return null;
+    }
+    return Location.makeFromBucketSpec(bucketString, host);
+}
+function connectStorageEmulator$1(storage, host, port, options = {}) {
+    storage.host = `${host}:${port}`;
+    const useSsl = isCloudWorkstation(host);
+    // Workaround to get cookies in Firebase Studio
+    if (useSsl) {
+        void pingServer(`https://${storage.host}/b`);
+        updateEmulatorBanner('Storage', true);
+    }
+    storage._isUsingEmulator = true;
+    storage._protocol = useSsl ? 'https' : 'http';
+    const { mockUserToken } = options;
+    if (mockUserToken) {
+        storage._overrideAuthToken =
+            typeof mockUserToken === 'string'
+                ? mockUserToken
+                : createMockUserToken(mockUserToken, storage.app.options.projectId);
+    }
+}
+/**
+ * A service that provides Firebase Storage Reference instances.
+ * @param opt_url - gs:// url to a custom Storage Bucket
+ *
+ * @internal
+ */
+class FirebaseStorageImpl {
+    constructor(
+    /**
+     * FirebaseApp associated with this StorageService instance.
+     */
+    app, _authProvider, 
+    /**
+     * @internal
+     */
+    _appCheckProvider, 
+    /**
+     * @internal
+     */
+    _url, _firebaseVersion, _isUsingEmulator = false) {
+        this.app = app;
+        this._authProvider = _authProvider;
+        this._appCheckProvider = _appCheckProvider;
+        this._url = _url;
+        this._firebaseVersion = _firebaseVersion;
+        this._isUsingEmulator = _isUsingEmulator;
+        this._bucket = null;
+        /**
+         * This string can be in the formats:
+         * - host
+         * - host:port
+         */
+        this._host = DEFAULT_HOST;
+        this._protocol = 'https';
+        this._appId = null;
+        this._deleted = false;
+        this._maxOperationRetryTime = DEFAULT_MAX_OPERATION_RETRY_TIME;
+        this._maxUploadRetryTime = DEFAULT_MAX_UPLOAD_RETRY_TIME;
+        this._requests = new Set();
+        if (_url != null) {
+            this._bucket = Location.makeFromBucketSpec(_url, this._host);
+        }
+        else {
+            this._bucket = extractBucket(this._host, this.app.options);
+        }
+    }
+    /**
+     * The host string for this service, in the form of `host` or
+     * `host:port`.
+     */
+    get host() {
+        return this._host;
+    }
+    set host(host) {
+        this._host = host;
+        if (this._url != null) {
+            this._bucket = Location.makeFromBucketSpec(this._url, host);
+        }
+        else {
+            this._bucket = extractBucket(host, this.app.options);
+        }
+    }
+    /**
+     * The maximum time to retry uploads in milliseconds.
+     */
+    get maxUploadRetryTime() {
+        return this._maxUploadRetryTime;
+    }
+    set maxUploadRetryTime(time) {
+        validateNumber('time', 
+        /* minValue=*/ 0, 
+        /* maxValue= */ Number.POSITIVE_INFINITY, time);
+        this._maxUploadRetryTime = time;
+    }
+    /**
+     * The maximum time to retry operations other than uploads or downloads in
+     * milliseconds.
+     */
+    get maxOperationRetryTime() {
+        return this._maxOperationRetryTime;
+    }
+    set maxOperationRetryTime(time) {
+        validateNumber('time', 
+        /* minValue=*/ 0, 
+        /* maxValue= */ Number.POSITIVE_INFINITY, time);
+        this._maxOperationRetryTime = time;
+    }
+    async _getAuthToken() {
+        if (this._overrideAuthToken) {
+            return this._overrideAuthToken;
+        }
+        const auth = this._authProvider.getImmediate({ optional: true });
+        if (auth) {
+            const tokenData = await auth.getToken();
+            if (tokenData !== null) {
+                return tokenData.accessToken;
+            }
+        }
+        return null;
+    }
+    async _getAppCheckToken() {
+        if (_isFirebaseServerApp(this.app) && this.app.settings.appCheckToken) {
+            return this.app.settings.appCheckToken;
+        }
+        const appCheck = this._appCheckProvider.getImmediate({ optional: true });
+        if (appCheck) {
+            const result = await appCheck.getToken();
+            // TODO: What do we want to do if there is an error getting the token?
+            // Context: appCheck.getToken() will never throw even if an error happened. In the error case, a dummy token will be
+            // returned along with an error field describing the error. In general, we shouldn't care about the error condition and just use
+            // the token (actual or dummy) to send requests.
+            return result.token;
+        }
+        return null;
+    }
+    /**
+     * Stop running requests and prevent more from being created.
+     */
+    _delete() {
+        if (!this._deleted) {
+            this._deleted = true;
+            this._requests.forEach(request => request.cancel());
+            this._requests.clear();
+        }
+        return Promise.resolve();
+    }
+    /**
+     * Returns a new firebaseStorage.Reference object referencing this StorageService
+     * at the given Location.
+     */
+    _makeStorageReference(loc) {
+        return new Reference(this, loc);
+    }
+    /**
+     * @param requestInfo - HTTP RequestInfo object
+     * @param authToken - Firebase auth token
+     */
+    _makeRequest(requestInfo, requestFactory, authToken, appCheckToken, retry = true) {
+        if (!this._deleted) {
+            const request = makeRequest(requestInfo, this._appId, authToken, appCheckToken, requestFactory, this._firebaseVersion, retry, this._isUsingEmulator);
+            this._requests.add(request);
+            // Request removes itself from set when complete.
+            request.getPromise().then(() => this._requests.delete(request), () => this._requests.delete(request));
+            return request;
+        }
+        else {
+            return new FailRequest(appDeleted());
+        }
+    }
+    async makeRequestWithTokens(requestInfo, requestFactory) {
+        const [authToken, appCheckToken] = await Promise.all([
+            this._getAuthToken(),
+            this._getAppCheckToken()
+        ]);
+        return this._makeRequest(requestInfo, requestFactory, authToken, appCheckToken).getPromise();
+    }
+}
+
+const name = "@firebase/storage";
+const version = "0.14.0";
+
+/**
+ * @license
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Type constant for Firebase Storage.
+ */
+const STORAGE_TYPE = 'storage';
+
+/**
+ * @license
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Downloads the data at the object's location. Returns an error if the object
+ * is not found.
+ *
+ * To use this functionality, you have to whitelist your app's origin in your
+ * Cloud Storage bucket. See also
+ * https://cloud.google.com/storage/docs/configuring-cors
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A Promise containing the object's bytes
+ */
+function getBytes(ref, maxDownloadSizeBytes) {
+    ref = getModularInstance(ref);
+    return getBytesInternal(ref, maxDownloadSizeBytes);
+}
+/**
+ * Uploads data to this object's location.
+ * The upload is not resumable.
+ * @public
+ * @param ref - {@link StorageReference} where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the data to upload.
+ * @returns A Promise containing an UploadResult
+ */
+function uploadBytes(ref, data, metadata) {
+    ref = getModularInstance(ref);
+    return uploadBytes$1(ref, data, metadata);
+}
+/**
+ * Uploads a string to this object's location.
+ * The upload is not resumable.
+ * @public
+ * @param ref - {@link StorageReference} where string should be uploaded.
+ * @param value - The string to upload.
+ * @param format - The format of the string to upload.
+ * @param metadata - Metadata for the string to upload.
+ * @returns A Promise containing an UploadResult
+ */
+function uploadString(ref, value, format, metadata) {
+    ref = getModularInstance(ref);
+    return uploadString$1(ref, value, format, metadata);
+}
+/**
+ * Uploads data to this object's location.
+ * The upload can be paused and resumed, and exposes progress updates.
+ * @public
+ * @param ref - {@link StorageReference} where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the data to upload.
+ * @returns An UploadTask
+ */
+function uploadBytesResumable(ref, data, metadata) {
+    ref = getModularInstance(ref);
+    return uploadBytesResumable$1(ref, data, metadata);
+}
+/**
+ * A `Promise` that resolves with the metadata for this object. If this
+ * object doesn't exist or metadata cannot be retrieved, the promise is
+ * rejected.
+ * @public
+ * @param ref - {@link StorageReference} to get metadata from.
+ */
+function getMetadata(ref) {
+    ref = getModularInstance(ref);
+    return getMetadata$1(ref);
+}
+/**
+ * Updates the metadata for this object.
+ * @public
+ * @param ref - {@link StorageReference} to update metadata for.
+ * @param metadata - The new metadata for the object.
+ *     Only values that have been explicitly set will be changed. Explicitly
+ *     setting a value to null will remove the metadata.
+ * @returns A `Promise` that resolves with the new metadata for this object.
+ */
+function updateMetadata(ref, metadata) {
+    ref = getModularInstance(ref);
+    return updateMetadata$1(ref, metadata);
+}
+/**
+ * List items (files) and prefixes (folders) under this storage reference.
+ *
+ * List API is only available for Firebase Rules Version 2.
+ *
+ * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'
+ * delimited folder structure.
+ * Refer to GCS's List API if you want to learn more.
+ *
+ * To adhere to Firebase Rules's Semantics, Firebase Storage does not
+ * support objects whose paths end with "/" or contain two consecutive
+ * "/"s. Firebase Storage List API will filter these unsupported objects.
+ * list() may fail if there are too many unsupported objects in the bucket.
+ * @public
+ *
+ * @param ref - {@link StorageReference} to get list from.
+ * @param options - See {@link ListOptions} for details.
+ * @returns A `Promise` that resolves with the items and prefixes.
+ *      `prefixes` contains references to sub-folders and `items`
+ *      contains references to objects in this folder. `nextPageToken`
+ *      can be used to get the rest of the results.
+ */
+function list(ref, options) {
+    ref = getModularInstance(ref);
+    return list$1(ref, options);
+}
+/**
+ * List all items (files) and prefixes (folders) under this storage reference.
+ *
+ * This is a helper method for calling list() repeatedly until there are
+ * no more results. The default pagination size is 1000.
+ *
+ * Note: The results may not be consistent if objects are changed while this
+ * operation is running.
+ *
+ * Warning: `listAll` may potentially consume too many resources if there are
+ * too many results.
+ * @public
+ * @param ref - {@link StorageReference} to get list from.
+ *
+ * @returns A `Promise` that resolves with all the items and prefixes under
+ *      the current storage reference. `prefixes` contains references to
+ *      sub-directories and `items` contains references to objects in this
+ *      folder. `nextPageToken` is never returned.
+ */
+function listAll(ref) {
+    ref = getModularInstance(ref);
+    return listAll$1(ref);
+}
+/**
+ * Returns the download URL for the given {@link StorageReference}.
+ * @public
+ * @param ref - {@link StorageReference} to get the download URL for.
+ * @returns A `Promise` that resolves with the download
+ *     URL for this object.
+ */
+function getDownloadURL(ref) {
+    ref = getModularInstance(ref);
+    return getDownloadURL$1(ref);
+}
+/**
+ * Deletes the object at this location.
+ * @public
+ * @param ref - {@link StorageReference} for object to delete.
+ * @returns A `Promise` that resolves if the deletion succeeds.
+ */
+function deleteObject(ref) {
+    ref = getModularInstance(ref);
+    return deleteObject$1(ref);
+}
+function ref(serviceOrRef, pathOrUrl) {
+    serviceOrRef = getModularInstance(serviceOrRef);
+    return ref$1(serviceOrRef, pathOrUrl);
+}
+/**
+ * @internal
+ */
+function _getChild(ref, childPath) {
+    return _getChild$1(ref, childPath);
+}
+/**
+ * Gets a {@link FirebaseStorage} instance for the given Firebase app.
+ * @public
+ * @param app - Firebase app to get {@link FirebaseStorage} instance for.
+ * @param bucketUrl - The gs:// url to your Firebase Storage Bucket.
+ * If not passed, uses the app's default Storage Bucket.
+ * @returns A {@link FirebaseStorage} instance.
+ */
+function getStorage(app = getApp(), bucketUrl) {
+    app = getModularInstance(app);
+    const storageProvider = _getProvider(app, STORAGE_TYPE);
+    const storageInstance = storageProvider.getImmediate({
+        identifier: bucketUrl
+    });
+    const emulator = getDefaultEmulatorHostnameAndPort('storage');
+    if (emulator) {
+        connectStorageEmulator(storageInstance, ...emulator);
+    }
+    return storageInstance;
+}
+/**
+ * Modify this {@link FirebaseStorage} instance to communicate with the Cloud Storage emulator.
+ *
+ * @param storage - The {@link FirebaseStorage} instance
+ * @param host - The emulator host (ex: localhost)
+ * @param port - The emulator port (ex: 5001)
+ * @param options - Emulator options. `options.mockUserToken` is the mock auth
+ * token to use for unit testing Security Rules.
+ * @public
+ */
+function connectStorageEmulator(storage, host, port, options = {}) {
+    connectStorageEmulator$1(storage, host, port, options);
+}
+
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Downloads the data at the object's location. Returns an error if the object
+ * is not found.
+ *
+ * To use this functionality, you have to whitelist your app's origin in your
+ * Cloud Storage bucket. See also
+ * https://cloud.google.com/storage/docs/configuring-cors
+ *
+ * This API is not available in Node.
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A Promise that resolves with a Blob containing the object's bytes
+ */
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
+function getBlob(ref, maxDownloadSizeBytes) {
+    throw new Error('getBlob() is only available in Browser-like environments');
+}
+/**
+ * Downloads the data at the object's location. Raises an error event if the
+ * object is not found.
+ *
+ * This API is only available in Node.
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A stream with the object's data as bytes
+ */
+function getStream(ref, maxDownloadSizeBytes) {
+    ref = getModularInstance(ref);
+    return getStreamInternal(ref, maxDownloadSizeBytes);
+}
+
+/**
+ * Cloud Storage for Firebase
+ *
+ * @packageDocumentation
+ */
+function factory(container, { instanceIdentifier: url }) {
+    const app = container.getProvider('app').getImmediate();
+    const authProvider = container.getProvider('auth-internal');
+    const appCheckProvider = container.getProvider('app-check-internal');
+    return new FirebaseStorageImpl(app, authProvider, appCheckProvider, url, SDK_VERSION);
+}
+function registerStorage() {
+    _registerComponent(new Component(STORAGE_TYPE, factory, "PUBLIC" /* ComponentType.PUBLIC */).setMultipleInstances(true));
+    registerVersion(name, version);
+}
+registerStorage();
+
+export { StorageError, StorageErrorCode, StringFormat, FbsBlob as _FbsBlob, Location as _Location, TaskEvent as _TaskEvent, TaskState as _TaskState, UploadTask as _UploadTask, dataFromString as _dataFromString, _getChild, invalidArgument as _invalidArgument, invalidRootOperation as _invalidRootOperation, connectStorageEmulator, deleteObject, getBlob, getBytes, getDownloadURL, getMetadata, getStorage, getStream, list, listAll, ref, updateMetadata, uploadBytes, uploadBytesResumable, uploadString };
+//# sourceMappingURL=index.node.esm.js.map
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/index.node.esm.js.map b/frontend-old/node_modules/@firebase/storage/dist/node-esm/index.node.esm.js.map
new file mode 100644
index 0000000..29cb657
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/index.node.esm.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.node.esm.js","sources":["../../src/implementation/constants.ts","../../src/implementation/error.ts","../../src/implementation/location.ts","../../src/implementation/failrequest.ts","../../src/implementation/backoff.ts","../../src/implementation/type.ts","../../src/implementation/url.ts","../../src/implementation/connection.ts","../../src/implementation/utils.ts","../../src/implementation/request.ts","../../src/implementation/fs.ts","../../src/platform/node/base64.ts","../../src/implementation/string.ts","../../src/implementation/blob.ts","../../src/implementation/json.ts","../../src/implementation/path.ts","../../src/implementation/metadata.ts","../../src/implementation/list.ts","../../src/implementation/requestinfo.ts","../../src/implementation/requests.ts","../../src/implementation/taskenums.ts","../../src/implementation/observer.ts","../../src/implementation/async.ts","../../src/platform/node/connection.ts","../../src/task.ts","../../src/reference.ts","../../src/service.ts","../../src/constants.ts","../../src/api.ts","../../src/api.node.ts","../../src/index.node.ts"],"sourcesContent":["/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * @fileoverview Constants used in the Firebase Storage library.\n */\n\n/**\n * Domain name for firebase storage.\n */\nexport const DEFAULT_HOST = 'firebasestorage.googleapis.com';\n\n/**\n * The key in Firebase config json for the storage bucket.\n */\nexport const CONFIG_STORAGE_BUCKET_KEY = 'storageBucket';\n\n/**\n * 2 minutes\n *\n * The timeout for all operations except upload.\n */\nexport const DEFAULT_MAX_OPERATION_RETRY_TIME = 2 * 60 * 1000;\n\n/**\n * 10 minutes\n *\n * The timeout for upload.\n */\nexport const DEFAULT_MAX_UPLOAD_RETRY_TIME = 10 * 60 * 1000;\n\n/**\n * 1 second\n */\nexport const DEFAULT_MIN_SLEEP_TIME_MILLIS = 1000;\n\n/**\n * This is the value of Number.MIN_SAFE_INTEGER, which is not well supported\n * enough for us to use it directly.\n */\nexport const MIN_SAFE_INTEGER = -9007199254740991;\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { FirebaseError } from '@firebase/util';\n\nimport { CONFIG_STORAGE_BUCKET_KEY } from './constants';\n\n/**\n * An error returned by the Firebase Storage SDK.\n * @public\n */\nexport class StorageError extends FirebaseError {\n  private readonly _baseMessage: string;\n  /**\n   * Stores custom error data unique to the `StorageError`.\n   */\n  customData: { serverResponse: string | null } = { serverResponse: null };\n\n  /**\n   * @param code - A `StorageErrorCode` string to be prefixed with 'storage/' and\n   *  added to the end of the message.\n   * @param message  - Error message.\n   * @param status_ - Corresponding HTTP Status Code\n   */\n  constructor(code: StorageErrorCode, message: string, private status_ = 0) {\n    super(\n      prependCode(code),\n      `Firebase Storage: ${message} (${prependCode(code)})`\n    );\n    this._baseMessage = this.message;\n    // Without this, `instanceof StorageError`, in tests for example,\n    // returns false.\n    Object.setPrototypeOf(this, StorageError.prototype);\n  }\n\n  get status(): number {\n    return this.status_;\n  }\n\n  set status(status: number) {\n    this.status_ = status;\n  }\n\n  /**\n   * Compares a `StorageErrorCode` against this error's code, filtering out the prefix.\n   */\n  _codeEquals(code: StorageErrorCode): boolean {\n    return prependCode(code) === this.code;\n  }\n\n  /**\n   * Optional response message that was added by the server.\n   */\n  get serverResponse(): null | string {\n    return this.customData.serverResponse;\n  }\n\n  set serverResponse(serverResponse: string | null) {\n    this.customData.serverResponse = serverResponse;\n    if (this.customData.serverResponse) {\n      this.message = `${this._baseMessage}\\n${this.customData.serverResponse}`;\n    } else {\n      this.message = this._baseMessage;\n    }\n  }\n}\n\nexport const errors = {};\n\n/**\n * @public\n * Error codes that can be attached to `StorageError` objects.\n */\nexport enum StorageErrorCode {\n  // Shared between all platforms\n  UNKNOWN = 'unknown',\n  OBJECT_NOT_FOUND = 'object-not-found',\n  BUCKET_NOT_FOUND = 'bucket-not-found',\n  PROJECT_NOT_FOUND = 'project-not-found',\n  QUOTA_EXCEEDED = 'quota-exceeded',\n  UNAUTHENTICATED = 'unauthenticated',\n  UNAUTHORIZED = 'unauthorized',\n  UNAUTHORIZED_APP = 'unauthorized-app',\n  RETRY_LIMIT_EXCEEDED = 'retry-limit-exceeded',\n  INVALID_CHECKSUM = 'invalid-checksum',\n  CANCELED = 'canceled',\n  // JS specific\n  INVALID_EVENT_NAME = 'invalid-event-name',\n  INVALID_URL = 'invalid-url',\n  INVALID_DEFAULT_BUCKET = 'invalid-default-bucket',\n  NO_DEFAULT_BUCKET = 'no-default-bucket',\n  CANNOT_SLICE_BLOB = 'cannot-slice-blob',\n  SERVER_FILE_WRONG_SIZE = 'server-file-wrong-size',\n  NO_DOWNLOAD_URL = 'no-download-url',\n  INVALID_ARGUMENT = 'invalid-argument',\n  INVALID_ARGUMENT_COUNT = 'invalid-argument-count',\n  APP_DELETED = 'app-deleted',\n  INVALID_ROOT_OPERATION = 'invalid-root-operation',\n  INVALID_FORMAT = 'invalid-format',\n  INTERNAL_ERROR = 'internal-error',\n  UNSUPPORTED_ENVIRONMENT = 'unsupported-environment'\n}\n\nexport function prependCode(code: StorageErrorCode): string {\n  return 'storage/' + code;\n}\n\nexport function unknown(): StorageError {\n  const message =\n    'An unknown error occurred, please check the error payload for ' +\n    'server response.';\n  return new StorageError(StorageErrorCode.UNKNOWN, message);\n}\n\nexport function objectNotFound(path: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.OBJECT_NOT_FOUND,\n    \"Object '\" + path + \"' does not exist.\"\n  );\n}\n\nexport function bucketNotFound(bucket: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.BUCKET_NOT_FOUND,\n    \"Bucket '\" + bucket + \"' does not exist.\"\n  );\n}\n\nexport function projectNotFound(project: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.PROJECT_NOT_FOUND,\n    \"Project '\" + project + \"' does not exist.\"\n  );\n}\n\nexport function quotaExceeded(bucket: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.QUOTA_EXCEEDED,\n    \"Quota for bucket '\" +\n      bucket +\n      \"' exceeded, please view quota on \" +\n      'https://firebase.google.com/pricing/.'\n  );\n}\n\nexport function unauthenticated(): StorageError {\n  const message =\n    'User is not authenticated, please authenticate using Firebase ' +\n    'Authentication and try again.';\n  return new StorageError(StorageErrorCode.UNAUTHENTICATED, message);\n}\n\nexport function unauthorizedApp(): StorageError {\n  return new StorageError(\n    StorageErrorCode.UNAUTHORIZED_APP,\n    'This app does not have permission to access Firebase Storage on this project.'\n  );\n}\n\nexport function unauthorized(path: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.UNAUTHORIZED,\n    \"User does not have permission to access '\" + path + \"'.\"\n  );\n}\n\nexport function retryLimitExceeded(): StorageError {\n  return new StorageError(\n    StorageErrorCode.RETRY_LIMIT_EXCEEDED,\n    'Max retry time for operation exceeded, please try again.'\n  );\n}\n\nexport function invalidChecksum(\n  path: string,\n  checksum: string,\n  calculated: string\n): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_CHECKSUM,\n    \"Uploaded/downloaded object '\" +\n      path +\n      \"' has checksum '\" +\n      checksum +\n      \"' which does not match '\" +\n      calculated +\n      \"'. Please retry the upload/download.\"\n  );\n}\n\nexport function canceled(): StorageError {\n  return new StorageError(\n    StorageErrorCode.CANCELED,\n    'User canceled the upload/download.'\n  );\n}\n\nexport function invalidEventName(name: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_EVENT_NAME,\n    \"Invalid event name '\" + name + \"'.\"\n  );\n}\n\nexport function invalidUrl(url: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_URL,\n    \"Invalid URL '\" + url + \"'.\"\n  );\n}\n\nexport function invalidDefaultBucket(bucket: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_DEFAULT_BUCKET,\n    \"Invalid default bucket '\" + bucket + \"'.\"\n  );\n}\n\nexport function noDefaultBucket(): StorageError {\n  return new StorageError(\n    StorageErrorCode.NO_DEFAULT_BUCKET,\n    'No default bucket ' +\n      \"found. Did you set the '\" +\n      CONFIG_STORAGE_BUCKET_KEY +\n      \"' property when initializing the app?\"\n  );\n}\n\nexport function cannotSliceBlob(): StorageError {\n  return new StorageError(\n    StorageErrorCode.CANNOT_SLICE_BLOB,\n    'Cannot slice blob for upload. Please retry the upload.'\n  );\n}\n\nexport function serverFileWrongSize(): StorageError {\n  return new StorageError(\n    StorageErrorCode.SERVER_FILE_WRONG_SIZE,\n    'Server recorded incorrect upload file size, please retry the upload.'\n  );\n}\n\nexport function noDownloadURL(): StorageError {\n  return new StorageError(\n    StorageErrorCode.NO_DOWNLOAD_URL,\n    'The given file does not have any download URLs.'\n  );\n}\n\nexport function missingPolyFill(polyFill: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.UNSUPPORTED_ENVIRONMENT,\n    `${polyFill} is missing. Make sure to install the required polyfills. See https://firebase.google.com/docs/web/environments-js-sdk#polyfills for more information.`\n  );\n}\n\n/**\n * @internal\n */\nexport function invalidArgument(message: string): StorageError {\n  return new StorageError(StorageErrorCode.INVALID_ARGUMENT, message);\n}\n\nexport function invalidArgumentCount(\n  argMin: number,\n  argMax: number,\n  fnName: string,\n  real: number\n): StorageError {\n  let countPart;\n  let plural;\n  if (argMin === argMax) {\n    countPart = argMin;\n    plural = argMin === 1 ? 'argument' : 'arguments';\n  } else {\n    countPart = 'between ' + argMin + ' and ' + argMax;\n    plural = 'arguments';\n  }\n  return new StorageError(\n    StorageErrorCode.INVALID_ARGUMENT_COUNT,\n    'Invalid argument count in `' +\n      fnName +\n      '`: Expected ' +\n      countPart +\n      ' ' +\n      plural +\n      ', received ' +\n      real +\n      '.'\n  );\n}\n\nexport function appDeleted(): StorageError {\n  return new StorageError(\n    StorageErrorCode.APP_DELETED,\n    'The Firebase app was deleted.'\n  );\n}\n\n/**\n * @param name - The name of the operation that was invalid.\n *\n * @internal\n */\nexport function invalidRootOperation(name: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_ROOT_OPERATION,\n    \"The operation '\" +\n      name +\n      \"' cannot be performed on a root reference, create a non-root \" +\n      \"reference using child, such as .child('file.png').\"\n  );\n}\n\n/**\n * @param format - The format that was not valid.\n * @param message - A message describing the format violation.\n */\nexport function invalidFormat(format: string, message: string): StorageError {\n  return new StorageError(\n    StorageErrorCode.INVALID_FORMAT,\n    \"String does not match format '\" + format + \"': \" + message\n  );\n}\n\n/**\n * @param message - A message describing the internal error.\n */\nexport function unsupportedEnvironment(message: string): StorageError {\n  throw new StorageError(StorageErrorCode.UNSUPPORTED_ENVIRONMENT, message);\n}\n\n/**\n * @param message - A message describing the internal error.\n */\nexport function internalError(message: string): StorageError {\n  throw new StorageError(\n    StorageErrorCode.INTERNAL_ERROR,\n    'Internal error: ' + message\n  );\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Functionality related to the parsing/composition of bucket/\n * object location.\n */\n\nimport { invalidDefaultBucket, invalidUrl } from './error';\nimport { DEFAULT_HOST } from './constants';\n\n/**\n * Firebase Storage location data.\n *\n * @internal\n */\nexport class Location {\n  private path_: string;\n\n  constructor(public readonly bucket: string, path: string) {\n    this.path_ = path;\n  }\n\n  get path(): string {\n    return this.path_;\n  }\n\n  get isRoot(): boolean {\n    return this.path.length === 0;\n  }\n\n  fullServerUrl(): string {\n    const encode = encodeURIComponent;\n    return '/b/' + encode(this.bucket) + '/o/' + encode(this.path);\n  }\n\n  bucketOnlyServerUrl(): string {\n    const encode = encodeURIComponent;\n    return '/b/' + encode(this.bucket) + '/o';\n  }\n\n  static makeFromBucketSpec(bucketString: string, host: string): Location {\n    let bucketLocation;\n    try {\n      bucketLocation = Location.makeFromUrl(bucketString, host);\n    } catch (e) {\n      // Not valid URL, use as-is. This lets you put bare bucket names in\n      // config.\n      return new Location(bucketString, '');\n    }\n    if (bucketLocation.path === '') {\n      return bucketLocation;\n    } else {\n      throw invalidDefaultBucket(bucketString);\n    }\n  }\n\n  static makeFromUrl(url: string, host: string): Location {\n    let location: Location | null = null;\n    const bucketDomain = '([A-Za-z0-9.\\\\-_]+)';\n\n    function gsModify(loc: Location): void {\n      if (loc.path.charAt(loc.path.length - 1) === '/') {\n        loc.path_ = loc.path_.slice(0, -1);\n      }\n    }\n    const gsPath = '(/(.*))?$';\n    const gsRegex = new RegExp('^gs://' + bucketDomain + gsPath, 'i');\n    const gsIndices = { bucket: 1, path: 3 };\n\n    function httpModify(loc: Location): void {\n      loc.path_ = decodeURIComponent(loc.path);\n    }\n    const version = 'v[A-Za-z0-9_]+';\n    const firebaseStorageHost = host.replace(/[.]/g, '\\\\.');\n    const firebaseStoragePath = '(/([^?#]*).*)?$';\n    const firebaseStorageRegExp = new RegExp(\n      `^https?://${firebaseStorageHost}/${version}/b/${bucketDomain}/o${firebaseStoragePath}`,\n      'i'\n    );\n    const firebaseStorageIndices = { bucket: 1, path: 3 };\n\n    const cloudStorageHost =\n      host === DEFAULT_HOST\n        ? '(?:storage.googleapis.com|storage.cloud.google.com)'\n        : host;\n    const cloudStoragePath = '([^?#]*)';\n    const cloudStorageRegExp = new RegExp(\n      `^https?://${cloudStorageHost}/${bucketDomain}/${cloudStoragePath}`,\n      'i'\n    );\n    const cloudStorageIndices = { bucket: 1, path: 2 };\n\n    const groups = [\n      { regex: gsRegex, indices: gsIndices, postModify: gsModify },\n      {\n        regex: firebaseStorageRegExp,\n        indices: firebaseStorageIndices,\n        postModify: httpModify\n      },\n      {\n        regex: cloudStorageRegExp,\n        indices: cloudStorageIndices,\n        postModify: httpModify\n      }\n    ];\n    for (let i = 0; i < groups.length; i++) {\n      const group = groups[i];\n      const captures = group.regex.exec(url);\n      if (captures) {\n        const bucketValue = captures[group.indices.bucket];\n        let pathValue = captures[group.indices.path];\n        if (!pathValue) {\n          pathValue = '';\n        }\n        location = new Location(bucketValue, pathValue);\n        group.postModify(location);\n        break;\n      }\n    }\n    if (location == null) {\n      throw invalidUrl(url);\n    }\n    return location;\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport { StorageError } from './error';\nimport { Request } from './request';\n\n/**\n * A request whose promise always fails.\n */\nexport class FailRequest<T> implements Request<T> {\n  promise_: Promise<T>;\n\n  constructor(error: StorageError) {\n    this.promise_ = Promise.reject<T>(error);\n  }\n\n  /** @inheritDoc */\n  getPromise(): Promise<T> {\n    return this.promise_;\n  }\n\n  /** @inheritDoc */\n  cancel(_appDelete = false): void {}\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Provides a method for running a function with exponential\n * backoff.\n */\ntype id = (p1: boolean) => void;\n\nexport { id };\n\n/**\n * Accepts a callback for an action to perform (`doRequest`),\n * and then a callback for when the backoff has completed (`backoffCompleteCb`).\n * The callback sent to start requires an argument to call (`onRequestComplete`).\n * When `start` calls `doRequest`, it passes a callback for when the request has\n * completed, `onRequestComplete`. Based on this, the backoff continues, with\n * another call to `doRequest` and the above loop continues until the timeout\n * is hit, or a successful response occurs.\n * @description\n * @param doRequest Callback to perform request\n * @param backoffCompleteCb Callback to call when backoff has been completed\n */\nexport function start(\n  doRequest: (\n    onRequestComplete: (success: boolean) => void,\n    canceled: boolean\n  ) => void,\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  backoffCompleteCb: (...args: any[]) => unknown,\n  timeout: number\n): id {\n  // TODO(andysoto): make this code cleaner (probably refactor into an actual\n  // type instead of a bunch of functions with state shared in the closure)\n  let waitSeconds = 1;\n  // Would type this as \"number\" but that doesn't work for Node so ¯\\_(ツ)_/¯\n  // TODO: find a way to exclude Node type definition for storage because storage only works in browser\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  let retryTimeoutId: any = null;\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  let globalTimeoutId: any = null;\n  let hitTimeout = false;\n  let cancelState = 0;\n\n  function canceled(): boolean {\n    return cancelState === 2;\n  }\n  let triggeredCallback = false;\n\n  function triggerCallback(...args: any[]): void {\n    if (!triggeredCallback) {\n      triggeredCallback = true;\n      backoffCompleteCb.apply(null, args);\n    }\n  }\n\n  function callWithDelay(millis: number): void {\n    retryTimeoutId = setTimeout(() => {\n      retryTimeoutId = null;\n      doRequest(responseHandler, canceled());\n    }, millis);\n  }\n\n  function clearGlobalTimeout(): void {\n    if (globalTimeoutId) {\n      clearTimeout(globalTimeoutId);\n    }\n  }\n\n  function responseHandler(success: boolean, ...args: any[]): void {\n    if (triggeredCallback) {\n      clearGlobalTimeout();\n      return;\n    }\n    if (success) {\n      clearGlobalTimeout();\n      triggerCallback.call(null, success, ...args);\n      return;\n    }\n    const mustStop = canceled() || hitTimeout;\n    if (mustStop) {\n      clearGlobalTimeout();\n      triggerCallback.call(null, success, ...args);\n      return;\n    }\n    if (waitSeconds < 64) {\n      /* TODO(andysoto): don't back off so quickly if we know we're offline. */\n      waitSeconds *= 2;\n    }\n    let waitMillis;\n    if (cancelState === 1) {\n      cancelState = 2;\n      waitMillis = 0;\n    } else {\n      waitMillis = (waitSeconds + Math.random()) * 1000;\n    }\n    callWithDelay(waitMillis);\n  }\n  let stopped = false;\n\n  function stop(wasTimeout: boolean): void {\n    if (stopped) {\n      return;\n    }\n    stopped = true;\n    clearGlobalTimeout();\n    if (triggeredCallback) {\n      return;\n    }\n    if (retryTimeoutId !== null) {\n      if (!wasTimeout) {\n        cancelState = 2;\n      }\n      clearTimeout(retryTimeoutId);\n      callWithDelay(0);\n    } else {\n      if (!wasTimeout) {\n        cancelState = 1;\n      }\n    }\n  }\n  callWithDelay(0);\n  globalTimeoutId = setTimeout(() => {\n    hitTimeout = true;\n    stop(true);\n  }, timeout);\n  return stop;\n}\n\n/**\n * Stops the retry loop from repeating.\n * If the function is currently \"in between\" retries, it is invoked immediately\n * with the second parameter as \"true\". Otherwise, it will be invoked once more\n * after the current invocation finishes iff the current invocation would have\n * triggered another retry.\n */\nexport function stop(id: id): void {\n  id(false);\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { invalidArgument } from './error';\n\nexport function isJustDef<T>(p: T | null | undefined): p is T | null {\n  return p !== void 0;\n}\n\n// eslint-disable-next-line @typescript-eslint/ban-types\nexport function isFunction(p: unknown): p is Function {\n  return typeof p === 'function';\n}\n\nexport function isNonArrayObject(p: unknown): boolean {\n  return typeof p === 'object' && !Array.isArray(p);\n}\n\nexport function isString(p: unknown): p is string {\n  return typeof p === 'string' || p instanceof String;\n}\n\nexport function isNativeBlob(p: unknown): p is Blob {\n  return isNativeBlobDefined() && p instanceof Blob;\n}\n\nexport function isNativeBlobDefined(): boolean {\n  return typeof Blob !== 'undefined';\n}\n\nexport function validateNumber(\n  argument: string,\n  minValue: number,\n  maxValue: number,\n  value: number\n): void {\n  if (value < minValue) {\n    throw invalidArgument(\n      `Invalid value for '${argument}'. Expected ${minValue} or greater.`\n    );\n  }\n  if (value > maxValue) {\n    throw invalidArgument(\n      `Invalid value for '${argument}'. Expected ${maxValue} or less.`\n    );\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Functions to create and manipulate URLs for the server API.\n */\nimport { UrlParams } from './requestinfo';\n\nexport function makeUrl(\n  urlPart: string,\n  host: string,\n  protocol: string\n): string {\n  let origin = host;\n  if (protocol == null) {\n    origin = `https://${host}`;\n  }\n  return `${protocol}://${origin}/v0${urlPart}`;\n}\n\nexport function makeQueryString(params: UrlParams): string {\n  const encode = encodeURIComponent;\n  let queryPart = '?';\n  for (const key in params) {\n    if (params.hasOwnProperty(key)) {\n      const nextPart = encode(key) + '=' + encode(params[key]);\n      queryPart = queryPart + nextPart + '&';\n    }\n  }\n\n  // Chop off the extra '&' or '?' on the end\n  queryPart = queryPart.slice(0, -1);\n  return queryPart;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/** Network headers */\nexport type Headers = Record<string, string>;\n\n/** Response type exposed by the networking APIs. */\nexport type ConnectionType =\n  | string\n  | ArrayBuffer\n  | Blob\n  | ReadableStream<Uint8Array>;\n\n/**\n * A lightweight wrapper around XMLHttpRequest with a\n * goog.net.XhrIo-like interface.\n *\n * You can create a new connection by invoking `newTextConnection()`,\n * `newBytesConnection()` or `newStreamConnection()`.\n */\nexport interface Connection<T extends ConnectionType> {\n  /**\n   * Sends a request to the provided URL.\n   *\n   * This method never rejects its promise. In case of encountering an error,\n   * it sets an error code internally which can be accessed by calling\n   * getErrorCode() by callers.\n   */\n  send(\n    url: string,\n    method: string,\n    isUsingEmulator: boolean,\n    body?: ArrayBufferView | Blob | string | null,\n    headers?: Headers\n  ): Promise<void>;\n\n  getErrorCode(): ErrorCode;\n\n  getStatus(): number;\n\n  getResponse(): T;\n\n  getErrorText(): string;\n\n  /**\n   * Abort the request.\n   */\n  abort(): void;\n\n  getResponseHeader(header: string): string | null;\n\n  addUploadProgressListener(listener: (p1: ProgressEvent) => void): void;\n\n  removeUploadProgressListener(listener: (p1: ProgressEvent) => void): void;\n}\n\n/**\n * Error codes for requests made by the XhrIo wrapper.\n */\nexport enum ErrorCode {\n  NO_ERROR = 0,\n  NETWORK_ERROR = 1,\n  ABORT = 2\n}\n","/**\n * @license\n * Copyright 2022 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * Checks the status code to see if the action should be retried.\n *\n * @param status Current HTTP status code returned by server.\n * @param additionalRetryCodes additional retry codes to check against\n */\nexport function isRetryStatusCode(\n  status: number,\n  additionalRetryCodes: number[]\n): boolean {\n  // The codes for which to retry came from this page:\n  // https://cloud.google.com/storage/docs/exponential-backoff\n  const isFiveHundredCode = status >= 500 && status < 600;\n  const extraRetryCodes = [\n    // Request Timeout: web server didn't receive full request in time.\n    408,\n    // Too Many Requests: you're getting rate-limited, basically.\n    429\n  ];\n  const isExtraRetryCode = extraRetryCodes.indexOf(status) !== -1;\n  const isAdditionalRetryCode = additionalRetryCodes.indexOf(status) !== -1;\n  return isFiveHundredCode || isExtraRetryCode || isAdditionalRetryCode;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Defines methods used to actually send HTTP requests from\n * abstract representations.\n */\n\nimport { id as backoffId, start, stop } from './backoff';\nimport { appDeleted, canceled, retryLimitExceeded, unknown } from './error';\nimport { ErrorHandler, RequestHandler, RequestInfo } from './requestinfo';\nimport { isJustDef } from './type';\nimport { makeQueryString } from './url';\nimport { Connection, ErrorCode, Headers, ConnectionType } from './connection';\nimport { isRetryStatusCode } from './utils';\n\nexport interface Request<T> {\n  getPromise(): Promise<T>;\n\n  /**\n   * Cancels the request. IMPORTANT: the promise may still be resolved with an\n   * appropriate value (if the request is finished before you call this method,\n   * but the promise has not yet been resolved), so don't just assume it will be\n   * rejected if you call this function.\n   * @param appDelete - True if the cancelation came from the app being deleted.\n   */\n  cancel(appDelete?: boolean): void;\n}\n\n/**\n * Handles network logic for all Storage Requests, including error reporting and\n * retries with backoff.\n *\n * @param I - the type of the backend's network response.\n * @param - O the output type used by the rest of the SDK. The conversion\n * happens in the specified `callback_`.\n */\nclass NetworkRequest<I extends ConnectionType, O> implements Request<O> {\n  private pendingConnection_: Connection<I> | null = null;\n  private backoffId_: backoffId | null = null;\n  private resolve_!: (value?: O | PromiseLike<O>) => void;\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  private reject_!: (reason?: any) => void;\n  private canceled_: boolean = false;\n  private appDelete_: boolean = false;\n  private promise_: Promise<O>;\n\n  constructor(\n    private url_: string,\n    private method_: string,\n    private headers_: Headers,\n    private body_: string | Blob | Uint8Array | null,\n    private successCodes_: number[],\n    private additionalRetryCodes_: number[],\n    private callback_: RequestHandler<I, O>,\n    private errorCallback_: ErrorHandler | null,\n    private timeout_: number,\n    private progressCallback_: ((p1: number, p2: number) => void) | null,\n    private connectionFactory_: () => Connection<I>,\n    private retry = true,\n    private isUsingEmulator = false\n  ) {\n    this.promise_ = new Promise((resolve, reject) => {\n      this.resolve_ = resolve as (value?: O | PromiseLike<O>) => void;\n      this.reject_ = reject;\n      this.start_();\n    });\n  }\n\n  /**\n   * Actually starts the retry loop.\n   */\n  private start_(): void {\n    const doTheRequest: (\n      backoffCallback: (success: boolean, ...p2: unknown[]) => void,\n      canceled: boolean\n    ) => void = (backoffCallback, canceled) => {\n      if (canceled) {\n        backoffCallback(false, new RequestEndStatus(false, null, true));\n        return;\n      }\n      const connection = this.connectionFactory_();\n      this.pendingConnection_ = connection;\n\n      const progressListener: (\n        progressEvent: ProgressEvent\n      ) => void = progressEvent => {\n        const loaded = progressEvent.loaded;\n        const total = progressEvent.lengthComputable ? progressEvent.total : -1;\n        if (this.progressCallback_ !== null) {\n          this.progressCallback_(loaded, total);\n        }\n      };\n      if (this.progressCallback_ !== null) {\n        connection.addUploadProgressListener(progressListener);\n      }\n\n      // connection.send() never rejects, so we don't need to have a error handler or use catch on the returned promise.\n      // eslint-disable-next-line @typescript-eslint/no-floating-promises\n      connection\n        .send(\n          this.url_,\n          this.method_,\n          this.isUsingEmulator,\n          this.body_,\n          this.headers_\n        )\n        .then(() => {\n          if (this.progressCallback_ !== null) {\n            connection.removeUploadProgressListener(progressListener);\n          }\n          this.pendingConnection_ = null;\n          const hitServer = connection.getErrorCode() === ErrorCode.NO_ERROR;\n          const status = connection.getStatus();\n          if (\n            !hitServer ||\n            (isRetryStatusCode(status, this.additionalRetryCodes_) &&\n              this.retry)\n          ) {\n            const wasCanceled = connection.getErrorCode() === ErrorCode.ABORT;\n            backoffCallback(\n              false,\n              new RequestEndStatus(false, null, wasCanceled)\n            );\n            return;\n          }\n          const successCode = this.successCodes_.indexOf(status) !== -1;\n          backoffCallback(true, new RequestEndStatus(successCode, connection));\n        });\n    };\n\n    /**\n     * @param requestWentThrough - True if the request eventually went\n     *     through, false if it hit the retry limit or was canceled.\n     */\n    const backoffDone: (\n      requestWentThrough: boolean,\n      status: RequestEndStatus<I>\n    ) => void = (requestWentThrough, status) => {\n      const resolve = this.resolve_;\n      const reject = this.reject_;\n      const connection = status.connection as Connection<I>;\n      if (status.wasSuccessCode) {\n        try {\n          const result = this.callback_(connection, connection.getResponse());\n          if (isJustDef(result)) {\n            resolve(result);\n          } else {\n            resolve();\n          }\n        } catch (e) {\n          reject(e);\n        }\n      } else {\n        if (connection !== null) {\n          const err = unknown();\n          err.serverResponse = connection.getErrorText();\n          if (this.errorCallback_) {\n            reject(this.errorCallback_(connection, err));\n          } else {\n            reject(err);\n          }\n        } else {\n          if (status.canceled) {\n            const err = this.appDelete_ ? appDeleted() : canceled();\n            reject(err);\n          } else {\n            const err = retryLimitExceeded();\n            reject(err);\n          }\n        }\n      }\n    };\n    if (this.canceled_) {\n      backoffDone(false, new RequestEndStatus(false, null, true));\n    } else {\n      this.backoffId_ = start(doTheRequest, backoffDone, this.timeout_);\n    }\n  }\n\n  /** @inheritDoc */\n  getPromise(): Promise<O> {\n    return this.promise_;\n  }\n\n  /** @inheritDoc */\n  cancel(appDelete?: boolean): void {\n    this.canceled_ = true;\n    this.appDelete_ = appDelete || false;\n    if (this.backoffId_ !== null) {\n      stop(this.backoffId_);\n    }\n    if (this.pendingConnection_ !== null) {\n      this.pendingConnection_.abort();\n    }\n  }\n}\n\n/**\n * A collection of information about the result of a network request.\n * @param opt_canceled - Defaults to false.\n */\nexport class RequestEndStatus<I extends ConnectionType> {\n  /**\n   * True if the request was canceled.\n   */\n  canceled: boolean;\n\n  constructor(\n    public wasSuccessCode: boolean,\n    public connection: Connection<I> | null,\n    canceled?: boolean\n  ) {\n    this.canceled = !!canceled;\n  }\n}\n\nexport function addAuthHeader_(\n  headers: Headers,\n  authToken: string | null\n): void {\n  if (authToken !== null && authToken.length > 0) {\n    headers['Authorization'] = 'Firebase ' + authToken;\n  }\n}\n\nexport function addVersionHeader_(\n  headers: Headers,\n  firebaseVersion?: string\n): void {\n  headers['X-Firebase-Storage-Version'] =\n    'webjs/' + (firebaseVersion ?? 'AppManager');\n}\n\nexport function addGmpidHeader_(headers: Headers, appId: string | null): void {\n  if (appId) {\n    headers['X-Firebase-GMPID'] = appId;\n  }\n}\n\nexport function addAppCheckHeader_(\n  headers: Headers,\n  appCheckToken: string | null\n): void {\n  if (appCheckToken !== null) {\n    headers['X-Firebase-AppCheck'] = appCheckToken;\n  }\n}\n\nexport function makeRequest<I extends ConnectionType, O>(\n  requestInfo: RequestInfo<I, O>,\n  appId: string | null,\n  authToken: string | null,\n  appCheckToken: string | null,\n  requestFactory: () => Connection<I>,\n  firebaseVersion?: string,\n  retry = true,\n  isUsingEmulator = false\n): Request<O> {\n  const queryPart = makeQueryString(requestInfo.urlParams);\n  const url = requestInfo.url + queryPart;\n  const headers = Object.assign({}, requestInfo.headers);\n  addGmpidHeader_(headers, appId);\n  addAuthHeader_(headers, authToken);\n  addVersionHeader_(headers, firebaseVersion);\n  addAppCheckHeader_(headers, appCheckToken);\n  return new NetworkRequest<I, O>(\n    url,\n    requestInfo.method,\n    headers,\n    requestInfo.body,\n    requestInfo.successCodes,\n    requestInfo.additionalRetryCodes,\n    requestInfo.handler,\n    requestInfo.errorHandler,\n    requestInfo.timeout,\n    requestInfo.progressCallback,\n    requestFactory,\n    retry,\n    isUsingEmulator\n  );\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * @fileoverview Some methods copied from goog.fs.\n * We don't include goog.fs because it pulls in a bunch of Deferred code that\n * bloats the size of the released binary.\n */\nimport { isNativeBlobDefined } from './type';\nimport { StorageErrorCode, StorageError } from './error';\n\nfunction getBlobBuilder(): typeof IBlobBuilder | undefined {\n  if (typeof BlobBuilder !== 'undefined') {\n    return BlobBuilder;\n  } else if (typeof WebKitBlobBuilder !== 'undefined') {\n    return WebKitBlobBuilder;\n  } else {\n    return undefined;\n  }\n}\n\n/**\n * Concatenates one or more values together and converts them to a Blob.\n *\n * @param args The values that will make up the resulting blob.\n * @return The blob.\n */\nexport function getBlob(...args: Array<string | Blob | ArrayBuffer>): Blob {\n  const BlobBuilder = getBlobBuilder();\n  if (BlobBuilder !== undefined) {\n    const bb = new BlobBuilder();\n    for (let i = 0; i < args.length; i++) {\n      bb.append(args[i]);\n    }\n    return bb.getBlob();\n  } else {\n    if (isNativeBlobDefined()) {\n      return new Blob(args);\n    } else {\n      throw new StorageError(\n        StorageErrorCode.UNSUPPORTED_ENVIRONMENT,\n        \"This browser doesn't seem to support creating Blobs\"\n      );\n    }\n  }\n}\n\n/**\n * Slices the blob. The returned blob contains data from the start byte\n * (inclusive) till the end byte (exclusive). Negative indices cannot be used.\n *\n * @param blob The blob to be sliced.\n * @param start Index of the starting byte.\n * @param end Index of the ending byte.\n * @return The blob slice or null if not supported.\n */\nexport function sliceBlob(blob: Blob, start: number, end: number): Blob | null {\n  if (blob.webkitSlice) {\n    return blob.webkitSlice(start, end);\n  } else if (blob.mozSlice) {\n    return blob.mozSlice(start, end);\n  } else if (blob.slice) {\n    return blob.slice(start, end);\n  }\n  return null;\n}\n","/**\n * @license\n * Copyright 2021 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { TextDecoder } from 'util';\nimport { invalidFormat } from '../../implementation/error';\n\n/** Converts a Base64 encoded string to a binary string. */\nexport function decodeBase64(encoded: string): string {\n  // Node actually doesn't validate base64 strings.\n  // A quick sanity check that is not a fool-proof validation\n  if (/[^-A-Za-z0-9+/=]/.test(encoded)) {\n    throw invalidFormat('base64', 'Invalid character found');\n  }\n  return Buffer.from(encoded, 'base64').toString('binary');\n}\n\nexport function decodeUint8Array(data: Uint8Array): string {\n  return new TextDecoder().decode(data);\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { unknown, invalidFormat } from './error';\nimport { decodeBase64 } from '../platform/base64';\n\n/**\n * An enumeration of the possible string formats for upload.\n * @public\n */\nexport type StringFormat = (typeof StringFormat)[keyof typeof StringFormat];\n/**\n * An enumeration of the possible string formats for upload.\n * @public\n */\nexport const StringFormat = {\n  /**\n   * Indicates the string should be interpreted \"raw\", that is, as normal text.\n   * The string will be interpreted as UTF-16, then uploaded as a UTF-8 byte\n   * sequence.\n   * Example: The string 'Hello! \\\\ud83d\\\\ude0a' becomes the byte sequence\n   * 48 65 6c 6c 6f 21 20 f0 9f 98 8a\n   */\n  RAW: 'raw',\n  /**\n   * Indicates the string should be interpreted as base64-encoded data.\n   * Padding characters (trailing '='s) are optional.\n   * Example: The string 'rWmO++E6t7/rlw==' becomes the byte sequence\n   * ad 69 8e fb e1 3a b7 bf eb 97\n   */\n  BASE64: 'base64',\n  /**\n   * Indicates the string should be interpreted as base64url-encoded data.\n   * Padding characters (trailing '='s) are optional.\n   * Example: The string 'rWmO--E6t7_rlw==' becomes the byte sequence\n   * ad 69 8e fb e1 3a b7 bf eb 97\n   */\n  BASE64URL: 'base64url',\n  /**\n   * Indicates the string is a data URL, such as one obtained from\n   * canvas.toDataURL().\n   * Example: the string 'data:application/octet-stream;base64,aaaa'\n   * becomes the byte sequence\n   * 69 a6 9a\n   * (the content-type \"application/octet-stream\" is also applied, but can\n   * be overridden in the metadata object).\n   */\n  DATA_URL: 'data_url'\n} as const;\n\nexport class StringData {\n  contentType: string | null;\n\n  constructor(public data: Uint8Array, contentType?: string | null) {\n    this.contentType = contentType || null;\n  }\n}\n\n/**\n * @internal\n */\nexport function dataFromString(\n  format: StringFormat,\n  stringData: string\n): StringData {\n  switch (format) {\n    case StringFormat.RAW:\n      return new StringData(utf8Bytes_(stringData));\n    case StringFormat.BASE64:\n    case StringFormat.BASE64URL:\n      return new StringData(base64Bytes_(format, stringData));\n    case StringFormat.DATA_URL:\n      return new StringData(\n        dataURLBytes_(stringData),\n        dataURLContentType_(stringData)\n      );\n    default:\n    // do nothing\n  }\n\n  // assert(false);\n  throw unknown();\n}\n\nexport function utf8Bytes_(value: string): Uint8Array {\n  const b: number[] = [];\n  for (let i = 0; i < value.length; i++) {\n    let c = value.charCodeAt(i);\n    if (c <= 127) {\n      b.push(c);\n    } else {\n      if (c <= 2047) {\n        b.push(192 | (c >> 6), 128 | (c & 63));\n      } else {\n        if ((c & 64512) === 55296) {\n          // The start of a surrogate pair.\n          const valid =\n            i < value.length - 1 && (value.charCodeAt(i + 1) & 64512) === 56320;\n          if (!valid) {\n            // The second surrogate wasn't there.\n            b.push(239, 191, 189);\n          } else {\n            const hi = c;\n            const lo = value.charCodeAt(++i);\n            c = 65536 | ((hi & 1023) << 10) | (lo & 1023);\n            b.push(\n              240 | (c >> 18),\n              128 | ((c >> 12) & 63),\n              128 | ((c >> 6) & 63),\n              128 | (c & 63)\n            );\n          }\n        } else {\n          if ((c & 64512) === 56320) {\n            // Invalid low surrogate.\n            b.push(239, 191, 189);\n          } else {\n            b.push(224 | (c >> 12), 128 | ((c >> 6) & 63), 128 | (c & 63));\n          }\n        }\n      }\n    }\n  }\n  return new Uint8Array(b);\n}\n\nexport function percentEncodedBytes_(value: string): Uint8Array {\n  let decoded;\n  try {\n    decoded = decodeURIComponent(value);\n  } catch (e) {\n    throw invalidFormat(StringFormat.DATA_URL, 'Malformed data URL.');\n  }\n  return utf8Bytes_(decoded);\n}\n\nexport function base64Bytes_(format: StringFormat, value: string): Uint8Array {\n  switch (format) {\n    case StringFormat.BASE64: {\n      const hasMinus = value.indexOf('-') !== -1;\n      const hasUnder = value.indexOf('_') !== -1;\n      if (hasMinus || hasUnder) {\n        const invalidChar = hasMinus ? '-' : '_';\n        throw invalidFormat(\n          format,\n          \"Invalid character '\" +\n            invalidChar +\n            \"' found: is it base64url encoded?\"\n        );\n      }\n      break;\n    }\n    case StringFormat.BASE64URL: {\n      const hasPlus = value.indexOf('+') !== -1;\n      const hasSlash = value.indexOf('/') !== -1;\n      if (hasPlus || hasSlash) {\n        const invalidChar = hasPlus ? '+' : '/';\n        throw invalidFormat(\n          format,\n          \"Invalid character '\" + invalidChar + \"' found: is it base64 encoded?\"\n        );\n      }\n      value = value.replace(/-/g, '+').replace(/_/g, '/');\n      break;\n    }\n    default:\n    // do nothing\n  }\n  let bytes;\n  try {\n    bytes = decodeBase64(value);\n  } catch (e) {\n    if ((e as Error).message.includes('polyfill')) {\n      throw e;\n    }\n    throw invalidFormat(format, 'Invalid character found');\n  }\n  const array = new Uint8Array(bytes.length);\n  for (let i = 0; i < bytes.length; i++) {\n    array[i] = bytes.charCodeAt(i);\n  }\n  return array;\n}\n\nclass DataURLParts {\n  base64: boolean = false;\n  contentType: string | null = null;\n  rest: string;\n\n  constructor(dataURL: string) {\n    const matches = dataURL.match(/^data:([^,]+)?,/);\n    if (matches === null) {\n      throw invalidFormat(\n        StringFormat.DATA_URL,\n        \"Must be formatted 'data:[<mediatype>][;base64],<data>\"\n      );\n    }\n    const middle = matches[1] || null;\n    if (middle != null) {\n      this.base64 = endsWith(middle, ';base64');\n      this.contentType = this.base64\n        ? middle.substring(0, middle.length - ';base64'.length)\n        : middle;\n    }\n    this.rest = dataURL.substring(dataURL.indexOf(',') + 1);\n  }\n}\n\nexport function dataURLBytes_(dataUrl: string): Uint8Array {\n  const parts = new DataURLParts(dataUrl);\n  if (parts.base64) {\n    return base64Bytes_(StringFormat.BASE64, parts.rest);\n  } else {\n    return percentEncodedBytes_(parts.rest);\n  }\n}\n\nexport function dataURLContentType_(dataUrl: string): string | null {\n  const parts = new DataURLParts(dataUrl);\n  return parts.contentType;\n}\n\nfunction endsWith(s: string, end: string): boolean {\n  const longEnough = s.length >= end.length;\n  if (!longEnough) {\n    return false;\n  }\n\n  return s.substring(s.length - end.length) === end;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @file Provides a Blob-like wrapper for various binary types (including the\n * native Blob type). This makes it possible to upload types like ArrayBuffers,\n * making uploads possible in environments without the native Blob type.\n */\nimport { sliceBlob, getBlob } from './fs';\nimport { StringFormat, dataFromString } from './string';\nimport { isNativeBlob, isNativeBlobDefined, isString } from './type';\n\n/**\n * @param opt_elideCopy - If true, doesn't copy mutable input data\n *     (e.g. Uint8Arrays). Pass true only if you know the objects will not be\n *     modified after this blob's construction.\n *\n * @internal\n */\nexport class FbsBlob {\n  private data_!: Blob | Uint8Array;\n  private size_: number;\n  private type_: string;\n\n  constructor(data: Blob | Uint8Array | ArrayBuffer, elideCopy?: boolean) {\n    let size: number = 0;\n    let blobType: string = '';\n    if (isNativeBlob(data)) {\n      this.data_ = data as Blob;\n      size = (data as Blob).size;\n      blobType = (data as Blob).type;\n    } else if (data instanceof ArrayBuffer) {\n      if (elideCopy) {\n        this.data_ = new Uint8Array(data);\n      } else {\n        this.data_ = new Uint8Array(data.byteLength);\n        this.data_.set(new Uint8Array(data));\n      }\n      size = this.data_.length;\n    } else if (data instanceof Uint8Array) {\n      if (elideCopy) {\n        this.data_ = data as Uint8Array;\n      } else {\n        this.data_ = new Uint8Array(data.length);\n        this.data_.set(data as Uint8Array);\n      }\n      size = data.length;\n    }\n    this.size_ = size;\n    this.type_ = blobType;\n  }\n\n  size(): number {\n    return this.size_;\n  }\n\n  type(): string {\n    return this.type_;\n  }\n\n  slice(startByte: number, endByte: number): FbsBlob | null {\n    if (isNativeBlob(this.data_)) {\n      const realBlob = this.data_ as Blob;\n      const sliced = sliceBlob(realBlob, startByte, endByte);\n      if (sliced === null) {\n        return null;\n      }\n      return new FbsBlob(sliced);\n    } else {\n      const slice = new Uint8Array(\n        (this.data_ as Uint8Array).buffer,\n        startByte,\n        endByte - startByte\n      );\n      return new FbsBlob(slice, true);\n    }\n  }\n\n  static getBlob(...args: Array<string | FbsBlob>): FbsBlob | null {\n    if (isNativeBlobDefined()) {\n      const blobby: Array<Blob | Uint8Array | string> = args.map(\n        (val: string | FbsBlob): Blob | Uint8Array | string => {\n          if (val instanceof FbsBlob) {\n            return val.data_;\n          } else {\n            return val;\n          }\n        }\n      );\n      return new FbsBlob(getBlob.apply(null, blobby));\n    } else {\n      const uint8Arrays: Uint8Array[] = args.map(\n        (val: string | FbsBlob): Uint8Array => {\n          if (isString(val)) {\n            return dataFromString(StringFormat.RAW, val as string).data;\n          } else {\n            // Blobs don't exist, so this has to be a Uint8Array.\n            return (val as FbsBlob).data_ as Uint8Array;\n          }\n        }\n      );\n      let finalLength = 0;\n      uint8Arrays.forEach((array: Uint8Array): void => {\n        finalLength += array.byteLength;\n      });\n      const merged = new Uint8Array(finalLength);\n      let index = 0;\n      uint8Arrays.forEach((array: Uint8Array) => {\n        for (let i = 0; i < array.length; i++) {\n          merged[index++] = array[i];\n        }\n      });\n      return new FbsBlob(merged, true);\n    }\n  }\n\n  uploadData(): Blob | Uint8Array {\n    return this.data_;\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport { isNonArrayObject } from './type';\n\n/**\n * Returns the Object resulting from parsing the given JSON, or null if the\n * given string does not represent a JSON object.\n */\nexport function jsonObjectOrNull(\n  s: string\n): { [name: string]: unknown } | null {\n  let obj;\n  try {\n    obj = JSON.parse(s);\n  } catch (e) {\n    return null;\n  }\n  if (isNonArrayObject(obj)) {\n    return obj;\n  } else {\n    return null;\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Contains helper methods for manipulating paths.\n */\n\n/**\n * @return Null if the path is already at the root.\n */\nexport function parent(path: string): string | null {\n  if (path.length === 0) {\n    return null;\n  }\n  const index = path.lastIndexOf('/');\n  if (index === -1) {\n    return '';\n  }\n  const newPath = path.slice(0, index);\n  return newPath;\n}\n\nexport function child(path: string, childPath: string): string {\n  const canonicalChildPath = childPath\n    .split('/')\n    .filter(component => component.length > 0)\n    .join('/');\n  if (path.length === 0) {\n    return canonicalChildPath;\n  } else {\n    return path + '/' + canonicalChildPath;\n  }\n}\n\n/**\n * Returns the last component of a path.\n * '/foo/bar' -> 'bar'\n * '/foo/bar/baz/' -> 'baz/'\n * '/a' -> 'a'\n */\nexport function lastComponent(path: string): string {\n  const index = path.lastIndexOf('/', path.length - 2);\n  if (index === -1) {\n    return path;\n  } else {\n    return path.slice(index + 1);\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Documentation for the metadata format\n */\nimport { Metadata } from '../metadata';\n\nimport { jsonObjectOrNull } from './json';\nimport { Location } from './location';\nimport { lastComponent } from './path';\nimport { isString } from './type';\nimport { makeUrl, makeQueryString } from './url';\nimport { Reference } from '../reference';\nimport { FirebaseStorageImpl } from '../service';\n\nexport function noXform_<T>(metadata: Metadata, value: T): T {\n  return value;\n}\n\nclass Mapping<T> {\n  local: string;\n  writable: boolean;\n  xform: (p1: Metadata, p2?: T) => T | undefined;\n\n  constructor(\n    public server: string,\n    local?: string | null,\n    writable?: boolean,\n    xform?: ((p1: Metadata, p2?: T) => T | undefined) | null\n  ) {\n    this.local = local || server;\n    this.writable = !!writable;\n    this.xform = xform || noXform_;\n  }\n}\ntype Mappings = Array<Mapping<string> | Mapping<number>>;\n\nexport { Mappings };\n\nlet mappings_: Mappings | null = null;\n\nexport function xformPath(fullPath: string | undefined): string | undefined {\n  if (!isString(fullPath) || fullPath.length < 2) {\n    return fullPath;\n  } else {\n    return lastComponent(fullPath);\n  }\n}\n\nexport function getMappings(): Mappings {\n  if (mappings_) {\n    return mappings_;\n  }\n  const mappings: Mappings = [];\n  mappings.push(new Mapping<string>('bucket'));\n  mappings.push(new Mapping<string>('generation'));\n  mappings.push(new Mapping<string>('metageneration'));\n  mappings.push(new Mapping<string>('name', 'fullPath', true));\n\n  function mappingsXformPath(\n    _metadata: Metadata,\n    fullPath: string | undefined\n  ): string | undefined {\n    return xformPath(fullPath);\n  }\n  const nameMapping = new Mapping<string>('name');\n  nameMapping.xform = mappingsXformPath;\n  mappings.push(nameMapping);\n\n  /**\n   * Coerces the second param to a number, if it is defined.\n   */\n  function xformSize(\n    _metadata: Metadata,\n    size?: number | string\n  ): number | undefined {\n    if (size !== undefined) {\n      return Number(size);\n    } else {\n      return size;\n    }\n  }\n  const sizeMapping = new Mapping<number>('size');\n  sizeMapping.xform = xformSize;\n  mappings.push(sizeMapping);\n  mappings.push(new Mapping<number>('timeCreated'));\n  mappings.push(new Mapping<string>('updated'));\n  mappings.push(new Mapping<string>('md5Hash', null, true));\n  mappings.push(new Mapping<string>('cacheControl', null, true));\n  mappings.push(new Mapping<string>('contentDisposition', null, true));\n  mappings.push(new Mapping<string>('contentEncoding', null, true));\n  mappings.push(new Mapping<string>('contentLanguage', null, true));\n  mappings.push(new Mapping<string>('contentType', null, true));\n  mappings.push(new Mapping<string>('metadata', 'customMetadata', true));\n  mappings_ = mappings;\n  return mappings_;\n}\n\nexport function addRef(metadata: Metadata, service: FirebaseStorageImpl): void {\n  function generateRef(): Reference {\n    const bucket: string = metadata['bucket'] as string;\n    const path: string = metadata['fullPath'] as string;\n    const loc = new Location(bucket, path);\n    return service._makeStorageReference(loc);\n  }\n  Object.defineProperty(metadata, 'ref', { get: generateRef });\n}\n\nexport function fromResource(\n  service: FirebaseStorageImpl,\n  resource: { [name: string]: unknown },\n  mappings: Mappings\n): Metadata {\n  const metadata: Metadata = {} as Metadata;\n  metadata['type'] = 'file';\n  const len = mappings.length;\n  for (let i = 0; i < len; i++) {\n    const mapping = mappings[i];\n    metadata[mapping.local] = (mapping as Mapping<unknown>).xform(\n      metadata,\n      resource[mapping.server]\n    );\n  }\n  addRef(metadata, service);\n  return metadata;\n}\n\nexport function fromResourceString(\n  service: FirebaseStorageImpl,\n  resourceString: string,\n  mappings: Mappings\n): Metadata | null {\n  const obj = jsonObjectOrNull(resourceString);\n  if (obj === null) {\n    return null;\n  }\n  const resource = obj as Metadata;\n  return fromResource(service, resource, mappings);\n}\n\nexport function downloadUrlFromResourceString(\n  metadata: Metadata,\n  resourceString: string,\n  host: string,\n  protocol: string\n): string | null {\n  const obj = jsonObjectOrNull(resourceString);\n  if (obj === null) {\n    return null;\n  }\n  if (!isString(obj['downloadTokens'])) {\n    // This can happen if objects are uploaded through GCS and retrieved\n    // through list, so we don't want to throw an Error.\n    return null;\n  }\n  const tokens: string = obj['downloadTokens'] as string;\n  if (tokens.length === 0) {\n    return null;\n  }\n  const encode = encodeURIComponent;\n  const tokensList = tokens.split(',');\n  const urls = tokensList.map((token: string): string => {\n    const bucket: string = metadata['bucket'] as string;\n    const path: string = metadata['fullPath'] as string;\n    const urlPart = '/b/' + encode(bucket) + '/o/' + encode(path);\n    const base = makeUrl(urlPart, host, protocol);\n    const queryString = makeQueryString({\n      alt: 'media',\n      token\n    });\n    return base + queryString;\n  });\n  return urls[0];\n}\n\nexport function toResourceString(\n  metadata: Partial<Metadata>,\n  mappings: Mappings\n): string {\n  const resource: {\n    [prop: string]: unknown;\n  } = {};\n  const len = mappings.length;\n  for (let i = 0; i < len; i++) {\n    const mapping = mappings[i];\n    if (mapping.writable) {\n      resource[mapping.server] = metadata[mapping.local];\n    }\n  }\n  return JSON.stringify(resource);\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Documentation for the listOptions and listResult format\n */\nimport { Location } from './location';\nimport { jsonObjectOrNull } from './json';\nimport { ListResult } from '../list';\nimport { FirebaseStorageImpl } from '../service';\n\n/**\n * Represents the simplified object metadata returned by List API.\n * Other fields are filtered because list in Firebase Rules does not grant\n * the permission to read the metadata.\n */\ninterface ListMetadataResponse {\n  name: string;\n  bucket: string;\n}\n\n/**\n * Represents the JSON response of List API.\n */\ninterface ListResultResponse {\n  prefixes: string[];\n  items: ListMetadataResponse[];\n  nextPageToken?: string;\n}\n\nconst PREFIXES_KEY = 'prefixes';\nconst ITEMS_KEY = 'items';\n\nfunction fromBackendResponse(\n  service: FirebaseStorageImpl,\n  bucket: string,\n  resource: ListResultResponse\n): ListResult {\n  const listResult: ListResult = {\n    prefixes: [],\n    items: [],\n    nextPageToken: resource['nextPageToken']\n  };\n  if (resource[PREFIXES_KEY]) {\n    for (const path of resource[PREFIXES_KEY]) {\n      const pathWithoutTrailingSlash = path.replace(/\\/$/, '');\n      const reference = service._makeStorageReference(\n        new Location(bucket, pathWithoutTrailingSlash)\n      );\n      listResult.prefixes.push(reference);\n    }\n  }\n\n  if (resource[ITEMS_KEY]) {\n    for (const item of resource[ITEMS_KEY]) {\n      const reference = service._makeStorageReference(\n        new Location(bucket, item['name'])\n      );\n      listResult.items.push(reference);\n    }\n  }\n  return listResult;\n}\n\nexport function fromResponseString(\n  service: FirebaseStorageImpl,\n  bucket: string,\n  resourceString: string\n): ListResult | null {\n  const obj = jsonObjectOrNull(resourceString);\n  if (obj === null) {\n    return null;\n  }\n  const resource = obj as unknown as ListResultResponse;\n  return fromBackendResponse(service, bucket, resource);\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport { StorageError } from './error';\nimport { Headers, Connection, ConnectionType } from './connection';\n\n/**\n * Type for url params stored in RequestInfo.\n */\nexport interface UrlParams {\n  [name: string]: string | number;\n}\n\n/**\n * A function that converts a server response to the API type expected by the\n * SDK.\n *\n * @param I - the type of the backend's network response\n * @param O - the output response type used by the rest of the SDK.\n */\nexport type RequestHandler<I extends ConnectionType, O> = (\n  connection: Connection<I>,\n  response: I\n) => O;\n\n/** A function to handle an error. */\nexport type ErrorHandler = (\n  connection: Connection<ConnectionType>,\n  response: StorageError\n) => StorageError;\n\n/**\n * Contains a fully specified request.\n *\n * @param I - the type of the backend's network response.\n * @param O - the output response type used by the rest of the SDK.\n */\nexport class RequestInfo<I extends ConnectionType, O> {\n  urlParams: UrlParams = {};\n  headers: Headers = {};\n  body: Blob | string | Uint8Array | null = null;\n  errorHandler: ErrorHandler | null = null;\n\n  /**\n   * Called with the current number of bytes uploaded and total size (-1 if not\n   * computable) of the request body (i.e. used to report upload progress).\n   */\n  progressCallback: ((p1: number, p2: number) => void) | null = null;\n  successCodes: number[] = [200];\n  additionalRetryCodes: number[] = [];\n\n  constructor(\n    public url: string,\n    public method: string,\n    /**\n     * Returns the value with which to resolve the request's promise. Only called\n     * if the request is successful. Throw from this function to reject the\n     * returned Request's promise with the thrown error.\n     * Note: The XhrIo passed to this function may be reused after this callback\n     * returns. Do not keep a reference to it in any way.\n     */\n    public handler: RequestHandler<I, O>,\n    public timeout: number\n  ) {}\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Defines methods for interacting with the network.\n */\n\nimport { Metadata } from '../metadata';\nimport { ListResult } from '../list';\nimport { FbsBlob } from './blob';\nimport {\n  StorageError,\n  cannotSliceBlob,\n  unauthenticated,\n  quotaExceeded,\n  unauthorized,\n  objectNotFound,\n  serverFileWrongSize,\n  unknown,\n  unauthorizedApp\n} from './error';\nimport { Location } from './location';\nimport {\n  Mappings,\n  fromResourceString,\n  downloadUrlFromResourceString,\n  toResourceString\n} from './metadata';\nimport { fromResponseString } from './list';\nimport { RequestInfo, UrlParams } from './requestinfo';\nimport { isString } from './type';\nimport { makeUrl } from './url';\nimport { Connection, ConnectionType } from './connection';\nimport { FirebaseStorageImpl } from '../service';\n\n/**\n * Throws the UNKNOWN StorageError if cndn is false.\n */\nexport function handlerCheck(cndn: boolean): void {\n  if (!cndn) {\n    throw unknown();\n  }\n}\n\nexport function metadataHandler(\n  service: FirebaseStorageImpl,\n  mappings: Mappings\n): (p1: Connection<string>, p2: string) => Metadata {\n  function handler(xhr: Connection<string>, text: string): Metadata {\n    const metadata = fromResourceString(service, text, mappings);\n    handlerCheck(metadata !== null);\n    return metadata as Metadata;\n  }\n  return handler;\n}\n\nexport function listHandler(\n  service: FirebaseStorageImpl,\n  bucket: string\n): (p1: Connection<string>, p2: string) => ListResult {\n  function handler(xhr: Connection<string>, text: string): ListResult {\n    const listResult = fromResponseString(service, bucket, text);\n    handlerCheck(listResult !== null);\n    return listResult as ListResult;\n  }\n  return handler;\n}\n\nexport function downloadUrlHandler(\n  service: FirebaseStorageImpl,\n  mappings: Mappings\n): (p1: Connection<string>, p2: string) => string | null {\n  function handler(xhr: Connection<string>, text: string): string | null {\n    const metadata = fromResourceString(service, text, mappings);\n    handlerCheck(metadata !== null);\n    return downloadUrlFromResourceString(\n      metadata as Metadata,\n      text,\n      service.host,\n      service._protocol\n    );\n  }\n  return handler;\n}\n\nexport function sharedErrorHandler(\n  location: Location\n): (p1: Connection<ConnectionType>, p2: StorageError) => StorageError {\n  function errorHandler(\n    xhr: Connection<ConnectionType>,\n    err: StorageError\n  ): StorageError {\n    let newErr: StorageError;\n    if (xhr.getStatus() === 401) {\n      if (\n        // This exact message string is the only consistent part of the\n        // server's error response that identifies it as an App Check error.\n        xhr.getErrorText().includes('Firebase App Check token is invalid')\n      ) {\n        newErr = unauthorizedApp();\n      } else {\n        newErr = unauthenticated();\n      }\n    } else {\n      if (xhr.getStatus() === 402) {\n        newErr = quotaExceeded(location.bucket);\n      } else {\n        if (xhr.getStatus() === 403) {\n          newErr = unauthorized(location.path);\n        } else {\n          newErr = err;\n        }\n      }\n    }\n    newErr.status = xhr.getStatus();\n    newErr.serverResponse = err.serverResponse;\n    return newErr;\n  }\n  return errorHandler;\n}\n\nexport function objectErrorHandler(\n  location: Location\n): (p1: Connection<ConnectionType>, p2: StorageError) => StorageError {\n  const shared = sharedErrorHandler(location);\n\n  function errorHandler(\n    xhr: Connection<ConnectionType>,\n    err: StorageError\n  ): StorageError {\n    let newErr = shared(xhr, err);\n    if (xhr.getStatus() === 404) {\n      newErr = objectNotFound(location.path);\n    }\n    newErr.serverResponse = err.serverResponse;\n    return newErr;\n  }\n  return errorHandler;\n}\n\nexport function getMetadata(\n  service: FirebaseStorageImpl,\n  location: Location,\n  mappings: Mappings\n): RequestInfo<string, Metadata> {\n  const urlPart = location.fullServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'GET';\n  const timeout = service.maxOperationRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    metadataHandler(service, mappings),\n    timeout\n  );\n  requestInfo.errorHandler = objectErrorHandler(location);\n  return requestInfo;\n}\n\nexport function list(\n  service: FirebaseStorageImpl,\n  location: Location,\n  delimiter?: string,\n  pageToken?: string | null,\n  maxResults?: number | null\n): RequestInfo<string, ListResult> {\n  const urlParams: UrlParams = {};\n  if (location.isRoot) {\n    urlParams['prefix'] = '';\n  } else {\n    urlParams['prefix'] = location.path + '/';\n  }\n  if (delimiter && delimiter.length > 0) {\n    urlParams['delimiter'] = delimiter;\n  }\n  if (pageToken) {\n    urlParams['pageToken'] = pageToken;\n  }\n  if (maxResults) {\n    urlParams['maxResults'] = maxResults;\n  }\n  const urlPart = location.bucketOnlyServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'GET';\n  const timeout = service.maxOperationRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    listHandler(service, location.bucket),\n    timeout\n  );\n  requestInfo.urlParams = urlParams;\n  requestInfo.errorHandler = sharedErrorHandler(location);\n  return requestInfo;\n}\n\nexport function getBytes<I extends ConnectionType>(\n  service: FirebaseStorageImpl,\n  location: Location,\n  maxDownloadSizeBytes?: number\n): RequestInfo<I, I> {\n  const urlPart = location.fullServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol) + '?alt=media';\n  const method = 'GET';\n  const timeout = service.maxOperationRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    (_: Connection<I>, data: I) => data,\n    timeout\n  );\n  requestInfo.errorHandler = objectErrorHandler(location);\n  if (maxDownloadSizeBytes !== undefined) {\n    requestInfo.headers['Range'] = `bytes=0-${maxDownloadSizeBytes}`;\n    requestInfo.successCodes = [200 /* OK */, 206 /* Partial Content */];\n  }\n  return requestInfo;\n}\n\nexport function getDownloadUrl(\n  service: FirebaseStorageImpl,\n  location: Location,\n  mappings: Mappings\n): RequestInfo<string, string | null> {\n  const urlPart = location.fullServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'GET';\n  const timeout = service.maxOperationRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    downloadUrlHandler(service, mappings),\n    timeout\n  );\n  requestInfo.errorHandler = objectErrorHandler(location);\n  return requestInfo;\n}\n\nexport function updateMetadata(\n  service: FirebaseStorageImpl,\n  location: Location,\n  metadata: Partial<Metadata>,\n  mappings: Mappings\n): RequestInfo<string, Metadata> {\n  const urlPart = location.fullServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'PATCH';\n  const body = toResourceString(metadata, mappings);\n  const headers = { 'Content-Type': 'application/json; charset=utf-8' };\n  const timeout = service.maxOperationRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    metadataHandler(service, mappings),\n    timeout\n  );\n  requestInfo.headers = headers;\n  requestInfo.body = body;\n  requestInfo.errorHandler = objectErrorHandler(location);\n  return requestInfo;\n}\n\nexport function deleteObject(\n  service: FirebaseStorageImpl,\n  location: Location\n): RequestInfo<string, void> {\n  const urlPart = location.fullServerUrl();\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'DELETE';\n  const timeout = service.maxOperationRetryTime;\n\n  function handler(_xhr: Connection<string>, _text: string): void {}\n  const requestInfo = new RequestInfo(url, method, handler, timeout);\n  requestInfo.successCodes = [200, 204];\n  requestInfo.errorHandler = objectErrorHandler(location);\n  return requestInfo;\n}\n\nexport function determineContentType_(\n  metadata: Metadata | null,\n  blob: FbsBlob | null\n): string {\n  return (\n    (metadata && metadata['contentType']) ||\n    (blob && blob.type()) ||\n    'application/octet-stream'\n  );\n}\n\nexport function metadataForUpload_(\n  location: Location,\n  blob: FbsBlob,\n  metadata?: Metadata | null\n): Metadata {\n  const metadataClone = Object.assign({}, metadata);\n  metadataClone['fullPath'] = location.path;\n  metadataClone['size'] = blob.size();\n  if (!metadataClone['contentType']) {\n    metadataClone['contentType'] = determineContentType_(null, blob);\n  }\n  return metadataClone;\n}\n\n/**\n * Prepare RequestInfo for uploads as Content-Type: multipart.\n */\nexport function multipartUpload(\n  service: FirebaseStorageImpl,\n  location: Location,\n  mappings: Mappings,\n  blob: FbsBlob,\n  metadata?: Metadata | null\n): RequestInfo<string, Metadata> {\n  const urlPart = location.bucketOnlyServerUrl();\n  const headers: { [prop: string]: string } = {\n    'X-Goog-Upload-Protocol': 'multipart'\n  };\n\n  function genBoundary(): string {\n    let str = '';\n    for (let i = 0; i < 2; i++) {\n      str = str + Math.random().toString().slice(2);\n    }\n    return str;\n  }\n  const boundary = genBoundary();\n  headers['Content-Type'] = 'multipart/related; boundary=' + boundary;\n  const metadata_ = metadataForUpload_(location, blob, metadata);\n  const metadataString = toResourceString(metadata_, mappings);\n  const preBlobPart =\n    '--' +\n    boundary +\n    '\\r\\n' +\n    'Content-Type: application/json; charset=utf-8\\r\\n\\r\\n' +\n    metadataString +\n    '\\r\\n--' +\n    boundary +\n    '\\r\\n' +\n    'Content-Type: ' +\n    metadata_['contentType'] +\n    '\\r\\n\\r\\n';\n  const postBlobPart = '\\r\\n--' + boundary + '--';\n  const body = FbsBlob.getBlob(preBlobPart, blob, postBlobPart);\n  if (body === null) {\n    throw cannotSliceBlob();\n  }\n  const urlParams: UrlParams = { name: metadata_['fullPath']! };\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'POST';\n  const timeout = service.maxUploadRetryTime;\n  const requestInfo = new RequestInfo(\n    url,\n    method,\n    metadataHandler(service, mappings),\n    timeout\n  );\n  requestInfo.urlParams = urlParams;\n  requestInfo.headers = headers;\n  requestInfo.body = body.uploadData();\n  requestInfo.errorHandler = sharedErrorHandler(location);\n  return requestInfo;\n}\n\n/**\n * @param current The number of bytes that have been uploaded so far.\n * @param total The total number of bytes in the upload.\n * @param opt_finalized True if the server has finished the upload.\n * @param opt_metadata The upload metadata, should\n *     only be passed if opt_finalized is true.\n */\nexport class ResumableUploadStatus {\n  finalized: boolean;\n  metadata: Metadata | null;\n\n  constructor(\n    public current: number,\n    public total: number,\n    finalized?: boolean,\n    metadata?: Metadata | null\n  ) {\n    this.finalized = !!finalized;\n    this.metadata = metadata || null;\n  }\n}\n\nexport function checkResumeHeader_(\n  xhr: Connection<string>,\n  allowed?: string[]\n): string {\n  let status: string | null = null;\n  try {\n    status = xhr.getResponseHeader('X-Goog-Upload-Status');\n  } catch (e) {\n    handlerCheck(false);\n  }\n  const allowedStatus = allowed || ['active'];\n  handlerCheck(!!status && allowedStatus.indexOf(status) !== -1);\n  return status as string;\n}\n\nexport function createResumableUpload(\n  service: FirebaseStorageImpl,\n  location: Location,\n  mappings: Mappings,\n  blob: FbsBlob,\n  metadata?: Metadata | null\n): RequestInfo<string, string> {\n  const urlPart = location.bucketOnlyServerUrl();\n  const metadataForUpload = metadataForUpload_(location, blob, metadata);\n  const urlParams: UrlParams = { name: metadataForUpload['fullPath']! };\n  const url = makeUrl(urlPart, service.host, service._protocol);\n  const method = 'POST';\n  const headers = {\n    'X-Goog-Upload-Protocol': 'resumable',\n    'X-Goog-Upload-Command': 'start',\n    'X-Goog-Upload-Header-Content-Length': `${blob.size()}`,\n    'X-Goog-Upload-Header-Content-Type': metadataForUpload['contentType']!,\n    'Content-Type': 'application/json; charset=utf-8'\n  };\n  const body = toResourceString(metadataForUpload, mappings);\n  const timeout = service.maxUploadRetryTime;\n\n  function handler(xhr: Connection<string>): string {\n    checkResumeHeader_(xhr);\n    let url;\n    try {\n      url = xhr.getResponseHeader('X-Goog-Upload-URL');\n    } catch (e) {\n      handlerCheck(false);\n    }\n    handlerCheck(isString(url));\n    return url as string;\n  }\n  const requestInfo = new RequestInfo(url, method, handler, timeout);\n  requestInfo.urlParams = urlParams;\n  requestInfo.headers = headers;\n  requestInfo.body = body;\n  requestInfo.errorHandler = sharedErrorHandler(location);\n  return requestInfo;\n}\n\n/**\n * @param url From a call to fbs.requests.createResumableUpload.\n */\nexport function getResumableUploadStatus(\n  service: FirebaseStorageImpl,\n  location: Location,\n  url: string,\n  blob: FbsBlob\n): RequestInfo<string, ResumableUploadStatus> {\n  const headers = { 'X-Goog-Upload-Command': 'query' };\n\n  function handler(xhr: Connection<string>): ResumableUploadStatus {\n    const status = checkResumeHeader_(xhr, ['active', 'final']);\n    let sizeString: string | null = null;\n    try {\n      sizeString = xhr.getResponseHeader('X-Goog-Upload-Size-Received');\n    } catch (e) {\n      handlerCheck(false);\n    }\n\n    if (!sizeString) {\n      // null or empty string\n      handlerCheck(false);\n    }\n\n    const size = Number(sizeString);\n    handlerCheck(!isNaN(size));\n    return new ResumableUploadStatus(size, blob.size(), status === 'final');\n  }\n  const method = 'POST';\n  const timeout = service.maxUploadRetryTime;\n  const requestInfo = new RequestInfo(url, method, handler, timeout);\n  requestInfo.headers = headers;\n  requestInfo.errorHandler = sharedErrorHandler(location);\n  return requestInfo;\n}\n\n/**\n * Any uploads via the resumable upload API must transfer a number of bytes\n * that is a multiple of this number.\n */\nexport const RESUMABLE_UPLOAD_CHUNK_SIZE: number = 256 * 1024;\n\n/**\n * @param url From a call to fbs.requests.createResumableUpload.\n * @param chunkSize Number of bytes to upload.\n * @param status The previous status.\n *     If not passed or null, we start from the beginning.\n * @throws fbs.Error If the upload is already complete, the passed in status\n *     has a final size inconsistent with the blob, or the blob cannot be sliced\n *     for upload.\n */\nexport function continueResumableUpload(\n  location: Location,\n  service: FirebaseStorageImpl,\n  url: string,\n  blob: FbsBlob,\n  chunkSize: number,\n  mappings: Mappings,\n  status?: ResumableUploadStatus | null,\n  progressCallback?: ((p1: number, p2: number) => void) | null\n): RequestInfo<string, ResumableUploadStatus> {\n  // TODO(andysoto): standardize on internal asserts\n  // assert(!(opt_status && opt_status.finalized));\n  const status_ = new ResumableUploadStatus(0, 0);\n  if (status) {\n    status_.current = status.current;\n    status_.total = status.total;\n  } else {\n    status_.current = 0;\n    status_.total = blob.size();\n  }\n  if (blob.size() !== status_.total) {\n    throw serverFileWrongSize();\n  }\n  const bytesLeft = status_.total - status_.current;\n  let bytesToUpload = bytesLeft;\n  if (chunkSize > 0) {\n    bytesToUpload = Math.min(bytesToUpload, chunkSize);\n  }\n  const startByte = status_.current;\n  const endByte = startByte + bytesToUpload;\n  let uploadCommand = '';\n  if (bytesToUpload === 0) {\n    uploadCommand = 'finalize';\n  } else if (bytesLeft === bytesToUpload) {\n    uploadCommand = 'upload, finalize';\n  } else {\n    uploadCommand = 'upload';\n  }\n  const headers = {\n    'X-Goog-Upload-Command': uploadCommand,\n    'X-Goog-Upload-Offset': `${status_.current}`\n  };\n  const body = blob.slice(startByte, endByte);\n  if (body === null) {\n    throw cannotSliceBlob();\n  }\n\n  function handler(\n    xhr: Connection<string>,\n    text: string\n  ): ResumableUploadStatus {\n    // TODO(andysoto): Verify the MD5 of each uploaded range:\n    // the 'x-range-md5' header comes back with status code 308 responses.\n    // We'll only be able to bail out though, because you can't re-upload a\n    // range that you previously uploaded.\n    const uploadStatus = checkResumeHeader_(xhr, ['active', 'final']);\n    const newCurrent = status_.current + bytesToUpload;\n    const size = blob.size();\n    let metadata;\n    if (uploadStatus === 'final') {\n      metadata = metadataHandler(service, mappings)(xhr, text);\n    } else {\n      metadata = null;\n    }\n    return new ResumableUploadStatus(\n      newCurrent,\n      size,\n      uploadStatus === 'final',\n      metadata\n    );\n  }\n  const method = 'POST';\n  const timeout = service.maxUploadRetryTime;\n  const requestInfo = new RequestInfo(url, method, handler, timeout);\n  requestInfo.headers = headers;\n  requestInfo.body = body.uploadData();\n  requestInfo.progressCallback = progressCallback || null;\n  requestInfo.errorHandler = sharedErrorHandler(location);\n  return requestInfo;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Enumerations used for upload tasks.\n */\n\n/**\n * An event that is triggered on a task.\n * @internal\n */\nexport type TaskEvent = string;\n\n/**\n * An event that is triggered on a task.\n * @internal\n */\nexport const TaskEvent = {\n  /**\n   * For this event,\n   * <ul>\n   *   <li>The `next` function is triggered on progress updates and when the\n   *       task is paused/resumed with an `UploadTaskSnapshot` as the first\n   *       argument.</li>\n   *   <li>The `error` function is triggered if the upload is canceled or fails\n   *       for another reason.</li>\n   *   <li>The `complete` function is triggered if the upload completes\n   *       successfully.</li>\n   * </ul>\n   */\n  STATE_CHANGED: 'state_changed'\n};\n\n/**\n * Internal enum for task state.\n */\nexport const enum InternalTaskState {\n  RUNNING = 'running',\n  PAUSING = 'pausing',\n  PAUSED = 'paused',\n  SUCCESS = 'success',\n  CANCELING = 'canceling',\n  CANCELED = 'canceled',\n  ERROR = 'error'\n}\n\n/**\n * Represents the current state of a running upload.\n * @internal\n */\nexport type TaskState = (typeof TaskState)[keyof typeof TaskState];\n\n// type keys = keyof TaskState\n/**\n * Represents the current state of a running upload.\n * @internal\n */\nexport const TaskState = {\n  /** The task is currently transferring data. */\n  RUNNING: 'running',\n\n  /** The task was paused by the user. */\n  PAUSED: 'paused',\n\n  /** The task completed successfully. */\n  SUCCESS: 'success',\n\n  /** The task was canceled. */\n  CANCELED: 'canceled',\n\n  /** The task failed with an error. */\n  ERROR: 'error'\n} as const;\n\nexport function taskStateFromInternalTaskState(\n  state: InternalTaskState\n): TaskState {\n  switch (state) {\n    case InternalTaskState.RUNNING:\n    case InternalTaskState.PAUSING:\n    case InternalTaskState.CANCELING:\n      return TaskState.RUNNING;\n    case InternalTaskState.PAUSED:\n      return TaskState.PAUSED;\n    case InternalTaskState.SUCCESS:\n      return TaskState.SUCCESS;\n    case InternalTaskState.CANCELED:\n      return TaskState.CANCELED;\n    case InternalTaskState.ERROR:\n      return TaskState.ERROR;\n    default:\n      // TODO(andysoto): assert(false);\n      return TaskState.ERROR;\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport { isFunction } from './type';\nimport { StorageError } from './error';\n\n/**\n * Function that is called once for each value in a stream of values.\n */\nexport type NextFn<T> = (value: T) => void;\n\n/**\n * A function that is called with a `StorageError`\n * if the event stream ends due to an error.\n */\nexport type ErrorFn = (error: StorageError) => void;\n\n/**\n * A function that is called if the event stream ends normally.\n */\nexport type CompleteFn = () => void;\n\n/**\n * Unsubscribes from a stream.\n */\nexport type Unsubscribe = () => void;\n\n/**\n * An observer identical to the `Observer` defined in packages/util except the\n * error passed into the ErrorFn is specifically a `StorageError`.\n */\nexport interface StorageObserver<T> {\n  /**\n   * Function that is called once for each value in the event stream.\n   */\n  next?: NextFn<T>;\n  /**\n   * A function that is called with a `StorageError`\n   * if the event stream ends due to an error.\n   */\n  error?: ErrorFn;\n  /**\n   * A function that is called if the event stream ends normally.\n   */\n  complete?: CompleteFn;\n}\n\n/**\n * Subscribes to an event stream.\n */\nexport type Subscribe<T> = (\n  next?: NextFn<T> | StorageObserver<T>,\n  error?: ErrorFn,\n  complete?: CompleteFn\n) => Unsubscribe;\n\nexport class Observer<T> implements StorageObserver<T> {\n  next?: NextFn<T>;\n  error?: ErrorFn;\n  complete?: CompleteFn;\n\n  constructor(\n    nextOrObserver?: NextFn<T> | StorageObserver<T>,\n    error?: ErrorFn,\n    complete?: CompleteFn\n  ) {\n    const asFunctions =\n      isFunction(nextOrObserver) || error != null || complete != null;\n    if (asFunctions) {\n      this.next = nextOrObserver as NextFn<T>;\n      this.error = error ?? undefined;\n      this.complete = complete ?? undefined;\n    } else {\n      const observer = nextOrObserver as {\n        next?: NextFn<T>;\n        error?: ErrorFn;\n        complete?: CompleteFn;\n      };\n      this.next = observer.next;\n      this.error = observer.error;\n      this.complete = observer.complete;\n    }\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * Returns a function that invokes f with its arguments asynchronously as a\n * microtask, i.e. as soon as possible after the current script returns back\n * into browser code.\n */\n// eslint-disable-next-line @typescript-eslint/ban-types\nexport function async(f: Function): Function {\n  return (...argsToForward: unknown[]) => {\n    // eslint-disable-next-line @typescript-eslint/no-floating-promises\n    Promise.resolve().then(() => f(...argsToForward));\n  };\n}\n","/**\n * @license\n * Copyright 2021 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { isCloudWorkstation } from '@firebase/util';\nimport {\n  Connection,\n  ConnectionType,\n  ErrorCode\n} from '../../implementation/connection';\nimport { internalError } from '../../implementation/error';\n\n/** An override for the text-based Connection. Used in tests. */\nlet textFactoryOverride: (() => Connection<string>) | null = null;\n\n/**\n * Network layer that works in Node.\n *\n * This network implementation should not be used in browsers as it does not\n * support progress updates.\n */\nabstract class FetchConnection<T extends ConnectionType>\n  implements Connection<T>\n{\n  protected errorCode_: ErrorCode;\n  protected statusCode_: number | undefined;\n  protected body_: ArrayBuffer | undefined;\n  protected errorText_ = '';\n  protected headers_: Headers | undefined;\n  protected sent_: boolean = false;\n\n  constructor() {\n    this.errorCode_ = ErrorCode.NO_ERROR;\n  }\n\n  async send(\n    url: string,\n    method: string,\n    isUsingEmulator: boolean,\n    body?: NodeJS.ArrayBufferView | Blob | string,\n    headers?: Record<string, string>\n  ): Promise<void> {\n    if (this.sent_) {\n      throw internalError('cannot .send() more than once');\n    }\n    this.sent_ = true;\n\n    try {\n      const response = await newFetch(\n        url,\n        method,\n        isUsingEmulator,\n        headers,\n        body\n      );\n      this.headers_ = response.headers;\n      this.statusCode_ = response.status;\n      this.errorCode_ = ErrorCode.NO_ERROR;\n      this.body_ = await response.arrayBuffer();\n    } catch (e) {\n      this.errorText_ = (e as Error)?.message;\n      // emulate XHR which sets status to 0 when encountering a network error\n      this.statusCode_ = 0;\n      this.errorCode_ = ErrorCode.NETWORK_ERROR;\n    }\n  }\n\n  getErrorCode(): ErrorCode {\n    if (this.errorCode_ === undefined) {\n      throw internalError('cannot .getErrorCode() before receiving response');\n    }\n    return this.errorCode_;\n  }\n\n  getStatus(): number {\n    if (this.statusCode_ === undefined) {\n      throw internalError('cannot .getStatus() before receiving response');\n    }\n    return this.statusCode_;\n  }\n\n  abstract getResponse(): T;\n\n  getErrorText(): string {\n    return this.errorText_;\n  }\n\n  abort(): void {\n    // Not supported\n  }\n\n  getResponseHeader(header: string): string | null {\n    if (!this.headers_) {\n      throw internalError(\n        'cannot .getResponseHeader() before receiving response'\n      );\n    }\n    return this.headers_.get(header);\n  }\n\n  addUploadProgressListener(listener: (p1: ProgressEvent) => void): void {\n    // Not supported\n  }\n\n  removeUploadProgressListener(listener: (p1: ProgressEvent) => void): void {\n    // Not supported\n  }\n}\n\nexport class FetchTextConnection extends FetchConnection<string> {\n  getResponse(): string {\n    if (!this.body_) {\n      throw internalError('cannot .getResponse() before receiving response');\n    }\n    return Buffer.from(this.body_).toString('utf-8');\n  }\n}\n\nexport function newTextConnection(): Connection<string> {\n  return textFactoryOverride\n    ? textFactoryOverride()\n    : new FetchTextConnection();\n}\n\nexport class FetchBytesConnection extends FetchConnection<ArrayBuffer> {\n  getResponse(): ArrayBuffer {\n    if (!this.body_) {\n      throw internalError('cannot .getResponse() before sending');\n    }\n    return this.body_;\n  }\n}\n\nexport function newBytesConnection(): Connection<ArrayBuffer> {\n  return new FetchBytesConnection();\n}\n\nexport class FetchStreamConnection extends FetchConnection<\n  ReadableStream<Uint8Array>\n> {\n  private stream_: ReadableStream<Uint8Array> | null = null;\n\n  async send(\n    url: string,\n    method: string,\n    isUsingEmulator: boolean,\n    body?: NodeJS.ArrayBufferView | Blob | string,\n    headers?: Record<string, string>\n  ): Promise<void> {\n    if (this.sent_) {\n      throw internalError('cannot .send() more than once');\n    }\n    this.sent_ = true;\n\n    try {\n      const response = await newFetch(\n        url,\n        method,\n        isUsingEmulator,\n        headers,\n        body\n      );\n      this.headers_ = response.headers;\n      this.statusCode_ = response.status;\n      this.errorCode_ = ErrorCode.NO_ERROR;\n      this.stream_ = response.body as ReadableStream<Uint8Array>;\n    } catch (e) {\n      this.errorText_ = (e as Error)?.message;\n      // emulate XHR which sets status to 0 when encountering a network error\n      this.statusCode_ = 0;\n      this.errorCode_ = ErrorCode.NETWORK_ERROR;\n    }\n  }\n\n  getResponse(): ReadableStream {\n    if (!this.stream_) {\n      throw internalError('cannot .getResponse() before sending');\n    }\n    return this.stream_;\n  }\n}\n\nfunction newFetch(\n  url: string,\n  method: string,\n  isUsingEmulator: boolean,\n  headers?: Record<string, string>,\n  body?: NodeJS.ArrayBufferView | Blob | string\n): Promise<Response> {\n  const fetchArgs: RequestInit = {\n    method,\n    headers: headers || {},\n    body: body as NodeJS.ArrayBufferView | string\n  };\n  if (isCloudWorkstation(url) && isUsingEmulator) {\n    fetchArgs.credentials = 'include';\n  }\n  return fetch(url, fetchArgs);\n}\n\nexport function newStreamConnection(): Connection<ReadableStream<Uint8Array>> {\n  return new FetchStreamConnection();\n}\n\nexport function newBlobConnection(): Connection<Blob> {\n  throw new Error('Blobs are not supported on Node');\n}\n\nexport function injectTestConnection(\n  factory: (() => Connection<string>) | null\n): void {\n  textFactoryOverride = factory;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * @fileoverview Defines types for interacting with blob transfer tasks.\n */\n\nimport { FbsBlob } from './implementation/blob';\nimport {\n  canceled,\n  StorageErrorCode,\n  StorageError,\n  retryLimitExceeded\n} from './implementation/error';\nimport {\n  InternalTaskState,\n  TaskEvent,\n  TaskState,\n  taskStateFromInternalTaskState\n} from './implementation/taskenums';\nimport { Metadata } from './metadata';\nimport {\n  Observer,\n  Subscribe,\n  Unsubscribe,\n  StorageObserver as StorageObserverInternal,\n  NextFn\n} from './implementation/observer';\nimport { Request } from './implementation/request';\nimport { UploadTaskSnapshot, StorageObserver } from './public-types';\nimport { async as fbsAsync } from './implementation/async';\nimport { Mappings, getMappings } from './implementation/metadata';\nimport {\n  createResumableUpload,\n  getResumableUploadStatus,\n  RESUMABLE_UPLOAD_CHUNK_SIZE,\n  ResumableUploadStatus,\n  continueResumableUpload,\n  getMetadata,\n  multipartUpload\n} from './implementation/requests';\nimport { Reference } from './reference';\nimport { newTextConnection } from './platform/connection';\nimport { isRetryStatusCode } from './implementation/utils';\nimport { CompleteFn } from '@firebase/util';\nimport { DEFAULT_MIN_SLEEP_TIME_MILLIS } from './implementation/constants';\n\n/**\n * Represents a blob being uploaded. Can be used to pause/resume/cancel the\n * upload and manage callbacks for various events.\n * @internal\n */\nexport class UploadTask {\n  private _ref: Reference;\n  /**\n   * The data to be uploaded.\n   */\n  _blob: FbsBlob;\n  /**\n   * Metadata related to the upload.\n   */\n  _metadata: Metadata | null;\n  private _mappings: Mappings;\n  /**\n   * Number of bytes transferred so far.\n   */\n  _transferred: number = 0;\n  private _needToFetchStatus: boolean = false;\n  private _needToFetchMetadata: boolean = false;\n  private _observers: Array<StorageObserverInternal<UploadTaskSnapshot>> = [];\n  private _resumable: boolean;\n  /**\n   * Upload state.\n   */\n  _state: InternalTaskState;\n  private _error?: StorageError = undefined;\n  private _uploadUrl?: string = undefined;\n  private _request?: Request<unknown> = undefined;\n  private _chunkMultiplier: number = 1;\n  private _errorHandler: (p1: StorageError) => void;\n  private _metadataErrorHandler: (p1: StorageError) => void;\n  private _resolve?: (p1: UploadTaskSnapshot) => void = undefined;\n  private _reject?: (p1: StorageError) => void = undefined;\n  private pendingTimeout?: ReturnType<typeof setTimeout>;\n  private _promise: Promise<UploadTaskSnapshot>;\n\n  private sleepTime: number;\n\n  private maxSleepTime: number;\n\n  isExponentialBackoffExpired(): boolean {\n    return this.sleepTime > this.maxSleepTime;\n  }\n\n  /**\n   * @param ref - The firebaseStorage.Reference object this task came\n   *     from, untyped to avoid cyclic dependencies.\n   * @param blob - The blob to upload.\n   */\n  constructor(ref: Reference, blob: FbsBlob, metadata: Metadata | null = null) {\n    this._ref = ref;\n    this._blob = blob;\n    this._metadata = metadata;\n    this._mappings = getMappings();\n    this._resumable = this._shouldDoResumable(this._blob);\n    this._state = InternalTaskState.RUNNING;\n    this._errorHandler = error => {\n      this._request = undefined;\n      this._chunkMultiplier = 1;\n      if (error._codeEquals(StorageErrorCode.CANCELED)) {\n        this._needToFetchStatus = true;\n        this.completeTransitions_();\n      } else {\n        const backoffExpired = this.isExponentialBackoffExpired();\n        if (isRetryStatusCode(error.status, [])) {\n          if (backoffExpired) {\n            error = retryLimitExceeded();\n          } else {\n            this.sleepTime = Math.max(\n              this.sleepTime * 2,\n              DEFAULT_MIN_SLEEP_TIME_MILLIS\n            );\n            this._needToFetchStatus = true;\n            this.completeTransitions_();\n            return;\n          }\n        }\n        this._error = error;\n        this._transition(InternalTaskState.ERROR);\n      }\n    };\n    this._metadataErrorHandler = error => {\n      this._request = undefined;\n      if (error._codeEquals(StorageErrorCode.CANCELED)) {\n        this.completeTransitions_();\n      } else {\n        this._error = error;\n        this._transition(InternalTaskState.ERROR);\n      }\n    };\n    this.sleepTime = 0;\n    this.maxSleepTime = this._ref.storage.maxUploadRetryTime;\n    this._promise = new Promise((resolve, reject) => {\n      this._resolve = resolve;\n      this._reject = reject;\n      this._start();\n    });\n\n    // Prevent uncaught rejections on the internal promise from bubbling out\n    // to the top level with a dummy handler.\n    this._promise.then(null, () => {});\n  }\n\n  private _makeProgressCallback(): (p1: number, p2: number) => void {\n    const sizeBefore = this._transferred;\n    return loaded => this._updateProgress(sizeBefore + loaded);\n  }\n\n  private _shouldDoResumable(blob: FbsBlob): boolean {\n    return blob.size() > 256 * 1024;\n  }\n\n  private _start(): void {\n    if (this._state !== InternalTaskState.RUNNING) {\n      // This can happen if someone pauses us in a resume callback, for example.\n      return;\n    }\n    if (this._request !== undefined) {\n      return;\n    }\n    if (this._resumable) {\n      if (this._uploadUrl === undefined) {\n        this._createResumable();\n      } else {\n        if (this._needToFetchStatus) {\n          this._fetchStatus();\n        } else {\n          if (this._needToFetchMetadata) {\n            // Happens if we miss the metadata on upload completion.\n            this._fetchMetadata();\n          } else {\n            this.pendingTimeout = setTimeout(() => {\n              this.pendingTimeout = undefined;\n              this._continueUpload();\n            }, this.sleepTime);\n          }\n        }\n      }\n    } else {\n      this._oneShotUpload();\n    }\n  }\n\n  private _resolveToken(\n    callback: (authToken: string | null, appCheckToken: string | null) => void\n  ): void {\n    // eslint-disable-next-line @typescript-eslint/no-floating-promises\n    Promise.all([\n      this._ref.storage._getAuthToken(),\n      this._ref.storage._getAppCheckToken()\n    ]).then(([authToken, appCheckToken]) => {\n      switch (this._state) {\n        case InternalTaskState.RUNNING:\n          callback(authToken, appCheckToken);\n          break;\n        case InternalTaskState.CANCELING:\n          this._transition(InternalTaskState.CANCELED);\n          break;\n        case InternalTaskState.PAUSING:\n          this._transition(InternalTaskState.PAUSED);\n          break;\n        default:\n      }\n    });\n  }\n\n  // TODO(andysoto): assert false\n\n  private _createResumable(): void {\n    this._resolveToken((authToken, appCheckToken) => {\n      const requestInfo = createResumableUpload(\n        this._ref.storage,\n        this._ref._location,\n        this._mappings,\n        this._blob,\n        this._metadata\n      );\n      const createRequest = this._ref.storage._makeRequest(\n        requestInfo,\n        newTextConnection,\n        authToken,\n        appCheckToken\n      );\n      this._request = createRequest;\n      createRequest.getPromise().then((url: string) => {\n        this._request = undefined;\n        this._uploadUrl = url;\n        this._needToFetchStatus = false;\n        this.completeTransitions_();\n      }, this._errorHandler);\n    });\n  }\n\n  private _fetchStatus(): void {\n    // TODO(andysoto): assert(this.uploadUrl_ !== null);\n    const url = this._uploadUrl as string;\n    this._resolveToken((authToken, appCheckToken) => {\n      const requestInfo = getResumableUploadStatus(\n        this._ref.storage,\n        this._ref._location,\n        url,\n        this._blob\n      );\n      const statusRequest = this._ref.storage._makeRequest(\n        requestInfo,\n        newTextConnection,\n        authToken,\n        appCheckToken\n      );\n      this._request = statusRequest;\n      statusRequest.getPromise().then(status => {\n        status = status as ResumableUploadStatus;\n        this._request = undefined;\n        this._updateProgress(status.current);\n        this._needToFetchStatus = false;\n        if (status.finalized) {\n          this._needToFetchMetadata = true;\n        }\n        this.completeTransitions_();\n      }, this._errorHandler);\n    });\n  }\n\n  private _continueUpload(): void {\n    const chunkSize = RESUMABLE_UPLOAD_CHUNK_SIZE * this._chunkMultiplier;\n    const status = new ResumableUploadStatus(\n      this._transferred,\n      this._blob.size()\n    );\n\n    // TODO(andysoto): assert(this.uploadUrl_ !== null);\n    const url = this._uploadUrl as string;\n    this._resolveToken((authToken, appCheckToken) => {\n      let requestInfo;\n      try {\n        requestInfo = continueResumableUpload(\n          this._ref._location,\n          this._ref.storage,\n          url,\n          this._blob,\n          chunkSize,\n          this._mappings,\n          status,\n          this._makeProgressCallback()\n        );\n      } catch (e) {\n        this._error = e as StorageError;\n        this._transition(InternalTaskState.ERROR);\n        return;\n      }\n      const uploadRequest = this._ref.storage._makeRequest(\n        requestInfo,\n        newTextConnection,\n        authToken,\n        appCheckToken,\n        /*retry=*/ false // Upload requests should not be retried as each retry should be preceded by another query request. Which is handled in this file.\n      );\n      this._request = uploadRequest;\n      uploadRequest.getPromise().then((newStatus: ResumableUploadStatus) => {\n        this._increaseMultiplier();\n        this._request = undefined;\n        this._updateProgress(newStatus.current);\n        if (newStatus.finalized) {\n          this._metadata = newStatus.metadata;\n          this._transition(InternalTaskState.SUCCESS);\n        } else {\n          this.completeTransitions_();\n        }\n      }, this._errorHandler);\n    });\n  }\n\n  private _increaseMultiplier(): void {\n    const currentSize = RESUMABLE_UPLOAD_CHUNK_SIZE * this._chunkMultiplier;\n\n    // Max chunk size is 32M.\n    if (currentSize * 2 < 32 * 1024 * 1024) {\n      this._chunkMultiplier *= 2;\n    }\n  }\n\n  private _fetchMetadata(): void {\n    this._resolveToken((authToken, appCheckToken) => {\n      const requestInfo = getMetadata(\n        this._ref.storage,\n        this._ref._location,\n        this._mappings\n      );\n      const metadataRequest = this._ref.storage._makeRequest(\n        requestInfo,\n        newTextConnection,\n        authToken,\n        appCheckToken\n      );\n      this._request = metadataRequest;\n      metadataRequest.getPromise().then(metadata => {\n        this._request = undefined;\n        this._metadata = metadata;\n        this._transition(InternalTaskState.SUCCESS);\n      }, this._metadataErrorHandler);\n    });\n  }\n\n  private _oneShotUpload(): void {\n    this._resolveToken((authToken, appCheckToken) => {\n      const requestInfo = multipartUpload(\n        this._ref.storage,\n        this._ref._location,\n        this._mappings,\n        this._blob,\n        this._metadata\n      );\n      const multipartRequest = this._ref.storage._makeRequest(\n        requestInfo,\n        newTextConnection,\n        authToken,\n        appCheckToken\n      );\n      this._request = multipartRequest;\n      multipartRequest.getPromise().then(metadata => {\n        this._request = undefined;\n        this._metadata = metadata;\n        this._updateProgress(this._blob.size());\n        this._transition(InternalTaskState.SUCCESS);\n      }, this._errorHandler);\n    });\n  }\n\n  private _updateProgress(transferred: number): void {\n    const old = this._transferred;\n    this._transferred = transferred;\n\n    // A progress update can make the \"transferred\" value smaller (e.g. a\n    // partial upload not completed by server, after which the \"transferred\"\n    // value may reset to the value at the beginning of the request).\n    if (this._transferred !== old) {\n      this._notifyObservers();\n    }\n  }\n\n  private _transition(state: InternalTaskState): void {\n    if (this._state === state) {\n      return;\n    }\n    switch (state) {\n      case InternalTaskState.CANCELING:\n      case InternalTaskState.PAUSING:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.RUNNING ||\n        //        this.state_ === InternalTaskState.PAUSING);\n        this._state = state;\n        if (this._request !== undefined) {\n          this._request.cancel();\n        } else if (this.pendingTimeout) {\n          clearTimeout(this.pendingTimeout);\n          this.pendingTimeout = undefined;\n          this.completeTransitions_();\n        }\n        break;\n      case InternalTaskState.RUNNING:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.PAUSED ||\n        //        this.state_ === InternalTaskState.PAUSING);\n        const wasPaused = this._state === InternalTaskState.PAUSED;\n        this._state = state;\n        if (wasPaused) {\n          this._notifyObservers();\n          this._start();\n        }\n        break;\n      case InternalTaskState.PAUSED:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.PAUSING);\n        this._state = state;\n        this._notifyObservers();\n        break;\n      case InternalTaskState.CANCELED:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.PAUSED ||\n        //        this.state_ === InternalTaskState.CANCELING);\n        this._error = canceled();\n        this._state = state;\n        this._notifyObservers();\n        break;\n      case InternalTaskState.ERROR:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.RUNNING ||\n        //        this.state_ === InternalTaskState.PAUSING ||\n        //        this.state_ === InternalTaskState.CANCELING);\n        this._state = state;\n        this._notifyObservers();\n        break;\n      case InternalTaskState.SUCCESS:\n        // TODO(andysoto):\n        // assert(this.state_ === InternalTaskState.RUNNING ||\n        //        this.state_ === InternalTaskState.PAUSING ||\n        //        this.state_ === InternalTaskState.CANCELING);\n        this._state = state;\n        this._notifyObservers();\n        break;\n      default: // Ignore\n    }\n  }\n\n  private completeTransitions_(): void {\n    switch (this._state) {\n      case InternalTaskState.PAUSING:\n        this._transition(InternalTaskState.PAUSED);\n        break;\n      case InternalTaskState.CANCELING:\n        this._transition(InternalTaskState.CANCELED);\n        break;\n      case InternalTaskState.RUNNING:\n        this._start();\n        break;\n      default:\n        // TODO(andysoto): assert(false);\n        break;\n    }\n  }\n\n  /**\n   * A snapshot of the current task state.\n   */\n  get snapshot(): UploadTaskSnapshot {\n    const externalState = taskStateFromInternalTaskState(this._state);\n    return {\n      bytesTransferred: this._transferred,\n      totalBytes: this._blob.size(),\n      state: externalState,\n      metadata: this._metadata!,\n      task: this,\n      ref: this._ref\n    };\n  }\n\n  /**\n   * Adds a callback for an event.\n   * @param type - The type of event to listen for.\n   * @param nextOrObserver -\n   *     The `next` function, which gets called for each item in\n   *     the event stream, or an observer object with some or all of these three\n   *     properties (`next`, `error`, `complete`).\n   * @param error - A function that gets called with a `StorageError`\n   *     if the event stream ends due to an error.\n   * @param completed - A function that gets called if the\n   *     event stream ends normally.\n   * @returns\n   *     If only the event argument is passed, returns a function you can use to\n   *     add callbacks (see the examples above). If more than just the event\n   *     argument is passed, returns a function you can call to unregister the\n   *     callbacks.\n   */\n  on(\n    type: TaskEvent,\n    nextOrObserver?:\n      | StorageObserver<UploadTaskSnapshot>\n      | null\n      | ((snapshot: UploadTaskSnapshot) => unknown),\n    error?: ((a: StorageError) => unknown) | null,\n    completed?: CompleteFn | null\n  ): Unsubscribe | Subscribe<UploadTaskSnapshot> {\n    // Note: `type` isn't being used. Its type is also incorrect. TaskEvent should not be a string.\n    const observer = new Observer(\n      (nextOrObserver as\n        | StorageObserverInternal<UploadTaskSnapshot>\n        | NextFn<UploadTaskSnapshot>) || undefined,\n      error || undefined,\n      completed || undefined\n    );\n    this._addObserver(observer);\n    return () => {\n      this._removeObserver(observer);\n    };\n  }\n\n  /**\n   * This object behaves like a Promise, and resolves with its snapshot data\n   * when the upload completes.\n   * @param onFulfilled - The fulfillment callback. Promise chaining works as normal.\n   * @param onRejected - The rejection callback.\n   */\n  then<U>(\n    onFulfilled?: ((value: UploadTaskSnapshot) => U | Promise<U>) | null,\n    onRejected?: ((error: StorageError) => U | Promise<U>) | null\n  ): Promise<U> {\n    // These casts are needed so that TypeScript can infer the types of the\n    // resulting Promise.\n    return this._promise.then<U>(\n      onFulfilled as (value: UploadTaskSnapshot) => U | Promise<U>,\n      onRejected as ((error: unknown) => Promise<never>) | null\n    );\n  }\n\n  /**\n   * Equivalent to calling `then(null, onRejected)`.\n   */\n  catch<T>(onRejected: (p1: StorageError) => T | Promise<T>): Promise<T> {\n    return this.then(null, onRejected);\n  }\n\n  /**\n   * Adds the given observer.\n   */\n  private _addObserver(observer: Observer<UploadTaskSnapshot>): void {\n    this._observers.push(observer);\n    this._notifyObserver(observer);\n  }\n\n  /**\n   * Removes the given observer.\n   */\n  private _removeObserver(observer: Observer<UploadTaskSnapshot>): void {\n    const i = this._observers.indexOf(observer);\n    if (i !== -1) {\n      this._observers.splice(i, 1);\n    }\n  }\n\n  private _notifyObservers(): void {\n    this._finishPromise();\n    const observers = this._observers.slice();\n    observers.forEach(observer => {\n      this._notifyObserver(observer);\n    });\n  }\n\n  private _finishPromise(): void {\n    if (this._resolve !== undefined) {\n      let triggered = true;\n      switch (taskStateFromInternalTaskState(this._state)) {\n        case TaskState.SUCCESS:\n          fbsAsync(this._resolve.bind(null, this.snapshot))();\n          break;\n        case TaskState.CANCELED:\n        case TaskState.ERROR:\n          const toCall = this._reject as (p1: StorageError) => void;\n          fbsAsync(toCall.bind(null, this._error as StorageError))();\n          break;\n        default:\n          triggered = false;\n          break;\n      }\n      if (triggered) {\n        this._resolve = undefined;\n        this._reject = undefined;\n      }\n    }\n  }\n\n  private _notifyObserver(observer: Observer<UploadTaskSnapshot>): void {\n    const externalState = taskStateFromInternalTaskState(this._state);\n    switch (externalState) {\n      case TaskState.RUNNING:\n      case TaskState.PAUSED:\n        if (observer.next) {\n          fbsAsync(observer.next.bind(observer, this.snapshot))();\n        }\n        break;\n      case TaskState.SUCCESS:\n        if (observer.complete) {\n          fbsAsync(observer.complete.bind(observer))();\n        }\n        break;\n      case TaskState.CANCELED:\n      case TaskState.ERROR:\n        if (observer.error) {\n          fbsAsync(\n            observer.error.bind(observer, this._error as StorageError)\n          )();\n        }\n        break;\n      default:\n        // TODO(andysoto): assert(false);\n        if (observer.error) {\n          fbsAsync(\n            observer.error.bind(observer, this._error as StorageError)\n          )();\n        }\n    }\n  }\n\n  /**\n   * Resumes a paused task. Has no effect on a currently running or failed task.\n   * @returns True if the operation took effect, false if ignored.\n   */\n  resume(): boolean {\n    const valid =\n      this._state === InternalTaskState.PAUSED ||\n      this._state === InternalTaskState.PAUSING;\n    if (valid) {\n      this._transition(InternalTaskState.RUNNING);\n    }\n    return valid;\n  }\n\n  /**\n   * Pauses a currently running task. Has no effect on a paused or failed task.\n   * @returns True if the operation took effect, false if ignored.\n   */\n  pause(): boolean {\n    const valid = this._state === InternalTaskState.RUNNING;\n    if (valid) {\n      this._transition(InternalTaskState.PAUSING);\n    }\n    return valid;\n  }\n\n  /**\n   * Cancels a currently running or paused task. Has no effect on a complete or\n   * failed task.\n   * @returns True if the operation took effect, false if ignored.\n   */\n  cancel(): boolean {\n    const valid =\n      this._state === InternalTaskState.RUNNING ||\n      this._state === InternalTaskState.PAUSING;\n    if (valid) {\n      this._transition(InternalTaskState.CANCELING);\n    }\n    return valid;\n  }\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Defines the Firebase StorageReference class.\n */\n\nimport { FbsBlob } from './implementation/blob';\nimport { Location } from './implementation/location';\nimport { getMappings } from './implementation/metadata';\nimport { child, lastComponent, parent } from './implementation/path';\nimport {\n  deleteObject as requestsDeleteObject,\n  getBytes,\n  getDownloadUrl as requestsGetDownloadUrl,\n  getMetadata as requestsGetMetadata,\n  list as requestsList,\n  multipartUpload,\n  updateMetadata as requestsUpdateMetadata\n} from './implementation/requests';\nimport { ListOptions, UploadResult } from './public-types';\nimport { dataFromString, StringFormat } from './implementation/string';\nimport { Metadata } from './metadata';\nimport { FirebaseStorageImpl } from './service';\nimport { ListResult } from './list';\nimport { UploadTask } from './task';\nimport { invalidRootOperation, noDownloadURL } from './implementation/error';\nimport { validateNumber } from './implementation/type';\nimport {\n  newBlobConnection,\n  newBytesConnection,\n  newStreamConnection,\n  newTextConnection\n} from './platform/connection';\nimport { RequestInfo } from './implementation/requestinfo';\n\n/**\n * Provides methods to interact with a bucket in the Firebase Storage service.\n * @internal\n * @param _location - An fbs.location, or the URL at\n *     which to base this object, in one of the following forms:\n *         gs://<bucket>/<object-path>\n *         http[s]://firebasestorage.googleapis.com/\n *                     <api-version>/b/<bucket>/o/<object-path>\n *     Any query or fragment strings will be ignored in the http[s]\n *     format. If no value is passed, the storage object will use a URL based on\n *     the project ID of the base firebase.App instance.\n */\nexport class Reference {\n  _location: Location;\n\n  constructor(\n    private _service: FirebaseStorageImpl,\n    location: string | Location\n  ) {\n    if (location instanceof Location) {\n      this._location = location;\n    } else {\n      this._location = Location.makeFromUrl(location, _service.host);\n    }\n  }\n\n  /**\n   * Returns the URL for the bucket and path this object references,\n   *     in the form gs://<bucket>/<object-path>\n   * @override\n   */\n  toString(): string {\n    return 'gs://' + this._location.bucket + '/' + this._location.path;\n  }\n\n  protected _newRef(\n    service: FirebaseStorageImpl,\n    location: Location\n  ): Reference {\n    return new Reference(service, location);\n  }\n\n  /**\n   * A reference to the root of this object's bucket.\n   */\n  get root(): Reference {\n    const location = new Location(this._location.bucket, '');\n    return this._newRef(this._service, location);\n  }\n\n  /**\n   * The name of the bucket containing this reference's object.\n   */\n  get bucket(): string {\n    return this._location.bucket;\n  }\n\n  /**\n   * The full path of this object.\n   */\n  get fullPath(): string {\n    return this._location.path;\n  }\n\n  /**\n   * The short name of this object, which is the last component of the full path.\n   * For example, if fullPath is 'full/path/image.png', name is 'image.png'.\n   */\n  get name(): string {\n    return lastComponent(this._location.path);\n  }\n\n  /**\n   * The `StorageService` instance this `StorageReference` is associated with.\n   */\n  get storage(): FirebaseStorageImpl {\n    return this._service;\n  }\n\n  /**\n   * A `StorageReference` pointing to the parent location of this `StorageReference`, or null if\n   * this reference is the root.\n   */\n  get parent(): Reference | null {\n    const newPath = parent(this._location.path);\n    if (newPath === null) {\n      return null;\n    }\n    const location = new Location(this._location.bucket, newPath);\n    return new Reference(this._service, location);\n  }\n\n  /**\n   * Utility function to throw an error in methods that do not accept a root reference.\n   */\n  _throwIfRoot(name: string): void {\n    if (this._location.path === '') {\n      throw invalidRootOperation(name);\n    }\n  }\n}\n\n/**\n * Download the bytes at the object's location.\n * @returns A Promise containing the downloaded bytes.\n */\nexport function getBytesInternal(\n  ref: Reference,\n  maxDownloadSizeBytes?: number\n): Promise<ArrayBuffer> {\n  ref._throwIfRoot('getBytes');\n  const requestInfo = getBytes(\n    ref.storage,\n    ref._location,\n    maxDownloadSizeBytes\n  );\n  return ref.storage\n    .makeRequestWithTokens(requestInfo, newBytesConnection)\n    .then(bytes =>\n      maxDownloadSizeBytes !== undefined\n        ? // GCS may not honor the Range header for small files\n          (bytes as ArrayBuffer).slice(0, maxDownloadSizeBytes)\n        : (bytes as ArrayBuffer)\n    );\n}\n\n/**\n * Download the bytes at the object's location.\n * @returns A Promise containing the downloaded blob.\n */\nexport function getBlobInternal(\n  ref: Reference,\n  maxDownloadSizeBytes?: number\n): Promise<Blob> {\n  ref._throwIfRoot('getBlob');\n  const requestInfo = getBytes(\n    ref.storage,\n    ref._location,\n    maxDownloadSizeBytes\n  );\n  return ref.storage\n    .makeRequestWithTokens(requestInfo, newBlobConnection)\n    .then(blob =>\n      maxDownloadSizeBytes !== undefined\n        ? // GCS may not honor the Range header for small files\n          (blob as Blob).slice(0, maxDownloadSizeBytes)\n        : (blob as Blob)\n    );\n}\n\n/** Stream the bytes at the object's location. */\nexport function getStreamInternal(\n  ref: Reference,\n  maxDownloadSizeBytes?: number\n): ReadableStream {\n  ref._throwIfRoot('getStream');\n  const requestInfo: RequestInfo<ReadableStream, ReadableStream> = getBytes(\n    ref.storage,\n    ref._location,\n    maxDownloadSizeBytes\n  );\n\n  // Transforms the stream so that only `maxDownloadSizeBytes` bytes are piped to the result\n  const newMaxSizeTransform = (n: number): Transformer => {\n    let missingBytes = n;\n    return {\n      transform(chunk, controller: TransformStreamDefaultController) {\n        // GCS may not honor the Range header for small files\n        if (chunk.length < missingBytes) {\n          controller.enqueue(chunk);\n          missingBytes -= chunk.length;\n        } else {\n          controller.enqueue(chunk.slice(0, missingBytes));\n          controller.terminate();\n        }\n      }\n    };\n  };\n\n  const result =\n    maxDownloadSizeBytes !== undefined\n      ? new TransformStream(newMaxSizeTransform(maxDownloadSizeBytes))\n      : new TransformStream(); // The default transformer forwards all chunks to its readable side\n\n  ref.storage\n    .makeRequestWithTokens(requestInfo, newStreamConnection)\n    .then(readableStream => readableStream.pipeThrough(result))\n    .catch(err => result.writable.abort(err));\n\n  return result.readable;\n}\n\n/**\n * Uploads data to this object's location.\n * The upload is not resumable.\n *\n * @param ref - StorageReference where data should be uploaded.\n * @param data - The data to upload.\n * @param metadata - Metadata for the newly uploaded data.\n * @returns A Promise containing an UploadResult\n */\nexport function uploadBytes(\n  ref: Reference,\n  data: Blob | Uint8Array | ArrayBuffer,\n  metadata?: Metadata\n): Promise<UploadResult> {\n  ref._throwIfRoot('uploadBytes');\n  const requestInfo = multipartUpload(\n    ref.storage,\n    ref._location,\n    getMappings(),\n    new FbsBlob(data, true),\n    metadata\n  );\n  return ref.storage\n    .makeRequestWithTokens(requestInfo, newTextConnection)\n    .then(finalMetadata => {\n      return {\n        metadata: finalMetadata,\n        ref\n      };\n    });\n}\n\n/**\n * Uploads data to this object's location.\n * The upload can be paused and resumed, and exposes progress updates.\n * @public\n * @param ref - StorageReference where data should be uploaded.\n * @param data - The data to upload.\n * @param metadata - Metadata for the newly uploaded data.\n * @returns An UploadTask\n */\nexport function uploadBytesResumable(\n  ref: Reference,\n  data: Blob | Uint8Array | ArrayBuffer,\n  metadata?: Metadata\n): UploadTask {\n  ref._throwIfRoot('uploadBytesResumable');\n  return new UploadTask(ref, new FbsBlob(data), metadata);\n}\n\n/**\n * Uploads a string to this object's location.\n * The upload is not resumable.\n * @public\n * @param ref - StorageReference where string should be uploaded.\n * @param value - The string to upload.\n * @param format - The format of the string to upload.\n * @param metadata - Metadata for the newly uploaded string.\n * @returns A Promise containing an UploadResult\n */\nexport function uploadString(\n  ref: Reference,\n  value: string,\n  format: StringFormat = StringFormat.RAW,\n  metadata?: Metadata\n): Promise<UploadResult> {\n  ref._throwIfRoot('uploadString');\n  const data = dataFromString(format, value);\n  const metadataClone = { ...metadata } as Metadata;\n  if (metadataClone['contentType'] == null && data.contentType != null) {\n    metadataClone['contentType'] = data.contentType!;\n  }\n  return uploadBytes(ref, data.data, metadataClone);\n}\n\n/**\n * List all items (files) and prefixes (folders) under this storage reference.\n *\n * This is a helper method for calling list() repeatedly until there are\n * no more results. The default pagination size is 1000.\n *\n * Note: The results may not be consistent if objects are changed while this\n * operation is running.\n *\n * Warning: listAll may potentially consume too many resources if there are\n * too many results.\n * @public\n * @param ref - StorageReference to get list from.\n *\n * @returns A Promise that resolves with all the items and prefixes under\n *      the current storage reference. `prefixes` contains references to\n *      sub-directories and `items` contains references to objects in this\n *      folder. `nextPageToken` is never returned.\n */\nexport function listAll(ref: Reference): Promise<ListResult> {\n  const accumulator: ListResult = {\n    prefixes: [],\n    items: []\n  };\n  return listAllHelper(ref, accumulator).then(() => accumulator);\n}\n\n/**\n * Separated from listAll because async functions can't use \"arguments\".\n * @param ref\n * @param accumulator\n * @param pageToken\n */\nasync function listAllHelper(\n  ref: Reference,\n  accumulator: ListResult,\n  pageToken?: string\n): Promise<void> {\n  const opt: ListOptions = {\n    // maxResults is 1000 by default.\n    pageToken\n  };\n  const nextPage = await list(ref, opt);\n  accumulator.prefixes.push(...nextPage.prefixes);\n  accumulator.items.push(...nextPage.items);\n  if (nextPage.nextPageToken != null) {\n    await listAllHelper(ref, accumulator, nextPage.nextPageToken);\n  }\n}\n\n/**\n * List items (files) and prefixes (folders) under this storage reference.\n *\n * List API is only available for Firebase Rules Version 2.\n *\n * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'\n * delimited folder structure.\n * Refer to GCS's List API if you want to learn more.\n *\n * To adhere to Firebase Rules's Semantics, Firebase Storage does not\n * support objects whose paths end with \"/\" or contain two consecutive\n * \"/\"s. Firebase Storage List API will filter these unsupported objects.\n * list() may fail if there are too many unsupported objects in the bucket.\n * @public\n *\n * @param ref - StorageReference to get list from.\n * @param options - See ListOptions for details.\n * @returns A Promise that resolves with the items and prefixes.\n *      `prefixes` contains references to sub-folders and `items`\n *      contains references to objects in this folder. `nextPageToken`\n *      can be used to get the rest of the results.\n */\nexport function list(\n  ref: Reference,\n  options?: ListOptions | null\n): Promise<ListResult> {\n  if (options != null) {\n    if (typeof options.maxResults === 'number') {\n      validateNumber(\n        'options.maxResults',\n        /* minValue= */ 1,\n        /* maxValue= */ 1000,\n        options.maxResults\n      );\n    }\n  }\n  const op = options || {};\n  const requestInfo = requestsList(\n    ref.storage,\n    ref._location,\n    /*delimiter= */ '/',\n    op.pageToken,\n    op.maxResults\n  );\n  return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);\n}\n\n/**\n * A `Promise` that resolves with the metadata for this object. If this\n * object doesn't exist or metadata cannot be retrieved, the promise is\n * rejected.\n * @public\n * @param ref - StorageReference to get metadata from.\n */\nexport function getMetadata(ref: Reference): Promise<Metadata> {\n  ref._throwIfRoot('getMetadata');\n  const requestInfo = requestsGetMetadata(\n    ref.storage,\n    ref._location,\n    getMappings()\n  );\n  return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);\n}\n\n/**\n * Updates the metadata for this object.\n * @public\n * @param ref - StorageReference to update metadata for.\n * @param metadata - The new metadata for the object.\n *     Only values that have been explicitly set will be changed. Explicitly\n *     setting a value to null will remove the metadata.\n * @returns A `Promise` that resolves\n *     with the new metadata for this object.\n *     See `firebaseStorage.Reference.prototype.getMetadata`\n */\nexport function updateMetadata(\n  ref: Reference,\n  metadata: Partial<Metadata>\n): Promise<Metadata> {\n  ref._throwIfRoot('updateMetadata');\n  const requestInfo = requestsUpdateMetadata(\n    ref.storage,\n    ref._location,\n    metadata,\n    getMappings()\n  );\n  return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);\n}\n\n/**\n * Returns the download URL for the given Reference.\n * @public\n * @returns A `Promise` that resolves with the download\n *     URL for this object.\n */\nexport function getDownloadURL(ref: Reference): Promise<string> {\n  ref._throwIfRoot('getDownloadURL');\n  const requestInfo = requestsGetDownloadUrl(\n    ref.storage,\n    ref._location,\n    getMappings()\n  );\n  return ref.storage\n    .makeRequestWithTokens(requestInfo, newTextConnection)\n    .then(url => {\n      if (url === null) {\n        throw noDownloadURL();\n      }\n      return url;\n    });\n}\n\n/**\n * Deletes the object at this location.\n * @public\n * @param ref - StorageReference for object to delete.\n * @returns A `Promise` that resolves if the deletion succeeds.\n */\nexport function deleteObject(ref: Reference): Promise<void> {\n  ref._throwIfRoot('deleteObject');\n  const requestInfo = requestsDeleteObject(ref.storage, ref._location);\n  return ref.storage.makeRequestWithTokens(requestInfo, newTextConnection);\n}\n\n/**\n * Returns reference for object obtained by appending `childPath` to `ref`.\n *\n * @param ref - StorageReference to get child of.\n * @param childPath - Child path from provided ref.\n * @returns A reference to the object obtained by\n * appending childPath, removing any duplicate, beginning, or trailing\n * slashes.\n *\n */\nexport function _getChild(ref: Reference, childPath: string): Reference {\n  const newPath = child(ref._location.path, childPath);\n  const location = new Location(ref._location.bucket, newPath);\n  return new Reference(ref.storage, location);\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { Location } from './implementation/location';\nimport { FailRequest } from './implementation/failrequest';\nimport { Request, makeRequest } from './implementation/request';\nimport { RequestInfo } from './implementation/requestinfo';\nimport { Reference, _getChild } from './reference';\nimport { Provider } from '@firebase/component';\nimport { FirebaseAuthInternalName } from '@firebase/auth-interop-types';\nimport { AppCheckInternalComponentName } from '@firebase/app-check-interop-types';\n// eslint-disable-next-line import/no-extraneous-dependencies\nimport {\n  FirebaseApp,\n  FirebaseOptions,\n  _isFirebaseServerApp\n} from '@firebase/app';\nimport {\n  CONFIG_STORAGE_BUCKET_KEY,\n  DEFAULT_HOST,\n  DEFAULT_MAX_OPERATION_RETRY_TIME,\n  DEFAULT_MAX_UPLOAD_RETRY_TIME\n} from './implementation/constants';\nimport {\n  invalidArgument,\n  appDeleted,\n  noDefaultBucket\n} from './implementation/error';\nimport { validateNumber } from './implementation/type';\nimport { FirebaseStorage } from './public-types';\nimport {\n  createMockUserToken,\n  EmulatorMockTokenOptions,\n  isCloudWorkstation,\n  pingServer,\n  updateEmulatorBanner\n} from '@firebase/util';\nimport { Connection, ConnectionType } from './implementation/connection';\n\nexport function isUrl(path?: string): boolean {\n  return /^[A-Za-z]+:\\/\\//.test(path as string);\n}\n\n/**\n * Returns a firebaseStorage.Reference for the given url.\n */\nfunction refFromURL(service: FirebaseStorageImpl, url: string): Reference {\n  return new Reference(service, url);\n}\n\n/**\n * Returns a firebaseStorage.Reference for the given path in the default\n * bucket.\n */\nfunction refFromPath(\n  ref: FirebaseStorageImpl | Reference,\n  path?: string\n): Reference {\n  if (ref instanceof FirebaseStorageImpl) {\n    const service = ref;\n    if (service._bucket == null) {\n      throw noDefaultBucket();\n    }\n    const reference = new Reference(service, service._bucket!);\n    if (path != null) {\n      return refFromPath(reference, path);\n    } else {\n      return reference;\n    }\n  } else {\n    // ref is a Reference\n    if (path !== undefined) {\n      return _getChild(ref, path);\n    } else {\n      return ref;\n    }\n  }\n}\n\n/**\n * Returns a storage Reference for the given url.\n * @param storage - `Storage` instance.\n * @param url - URL. If empty, returns root reference.\n * @public\n */\nexport function ref(storage: FirebaseStorageImpl, url?: string): Reference;\n/**\n * Returns a storage Reference for the given path in the\n * default bucket.\n * @param storageOrRef - `Storage` service or storage `Reference`.\n * @param pathOrUrlStorage - path. If empty, returns root reference (if Storage\n * instance provided) or returns same reference (if Reference provided).\n * @public\n */\nexport function ref(\n  storageOrRef: FirebaseStorageImpl | Reference,\n  path?: string\n): Reference;\nexport function ref(\n  serviceOrRef: FirebaseStorageImpl | Reference,\n  pathOrUrl?: string\n): Reference | null {\n  if (pathOrUrl && isUrl(pathOrUrl)) {\n    if (serviceOrRef instanceof FirebaseStorageImpl) {\n      return refFromURL(serviceOrRef, pathOrUrl);\n    } else {\n      throw invalidArgument(\n        'To use ref(service, url), the first argument must be a Storage instance.'\n      );\n    }\n  } else {\n    return refFromPath(serviceOrRef, pathOrUrl);\n  }\n}\n\nfunction extractBucket(\n  host: string,\n  config?: FirebaseOptions\n): Location | null {\n  const bucketString = config?.[CONFIG_STORAGE_BUCKET_KEY];\n  if (bucketString == null) {\n    return null;\n  }\n  return Location.makeFromBucketSpec(bucketString, host);\n}\n\nexport function connectStorageEmulator(\n  storage: FirebaseStorageImpl,\n  host: string,\n  port: number,\n  options: {\n    mockUserToken?: EmulatorMockTokenOptions | string;\n  } = {}\n): void {\n  storage.host = `${host}:${port}`;\n  const useSsl = isCloudWorkstation(host);\n  // Workaround to get cookies in Firebase Studio\n  if (useSsl) {\n    void pingServer(`https://${storage.host}/b`);\n    updateEmulatorBanner('Storage', true);\n  }\n  storage._isUsingEmulator = true;\n  storage._protocol = useSsl ? 'https' : 'http';\n  const { mockUserToken } = options;\n  if (mockUserToken) {\n    storage._overrideAuthToken =\n      typeof mockUserToken === 'string'\n        ? mockUserToken\n        : createMockUserToken(mockUserToken, storage.app.options.projectId);\n  }\n}\n\n/**\n * A service that provides Firebase Storage Reference instances.\n * @param opt_url - gs:// url to a custom Storage Bucket\n *\n * @internal\n */\nexport class FirebaseStorageImpl implements FirebaseStorage {\n  _bucket: Location | null = null;\n  /**\n   * This string can be in the formats:\n   * - host\n   * - host:port\n   */\n  private _host: string = DEFAULT_HOST;\n  _protocol: string = 'https';\n  protected readonly _appId: string | null = null;\n  private readonly _requests: Set<Request<unknown>>;\n  private _deleted: boolean = false;\n  private _maxOperationRetryTime: number;\n  private _maxUploadRetryTime: number;\n  _overrideAuthToken?: string;\n\n  constructor(\n    /**\n     * FirebaseApp associated with this StorageService instance.\n     */\n    readonly app: FirebaseApp,\n    readonly _authProvider: Provider<FirebaseAuthInternalName>,\n    /**\n     * @internal\n     */\n    readonly _appCheckProvider: Provider<AppCheckInternalComponentName>,\n    /**\n     * @internal\n     */\n    readonly _url?: string,\n    readonly _firebaseVersion?: string,\n    public _isUsingEmulator = false\n  ) {\n    this._maxOperationRetryTime = DEFAULT_MAX_OPERATION_RETRY_TIME;\n    this._maxUploadRetryTime = DEFAULT_MAX_UPLOAD_RETRY_TIME;\n    this._requests = new Set();\n    if (_url != null) {\n      this._bucket = Location.makeFromBucketSpec(_url, this._host);\n    } else {\n      this._bucket = extractBucket(this._host, this.app.options);\n    }\n  }\n\n  /**\n   * The host string for this service, in the form of `host` or\n   * `host:port`.\n   */\n  get host(): string {\n    return this._host;\n  }\n\n  set host(host: string) {\n    this._host = host;\n    if (this._url != null) {\n      this._bucket = Location.makeFromBucketSpec(this._url, host);\n    } else {\n      this._bucket = extractBucket(host, this.app.options);\n    }\n  }\n\n  /**\n   * The maximum time to retry uploads in milliseconds.\n   */\n  get maxUploadRetryTime(): number {\n    return this._maxUploadRetryTime;\n  }\n\n  set maxUploadRetryTime(time: number) {\n    validateNumber(\n      'time',\n      /* minValue=*/ 0,\n      /* maxValue= */ Number.POSITIVE_INFINITY,\n      time\n    );\n    this._maxUploadRetryTime = time;\n  }\n\n  /**\n   * The maximum time to retry operations other than uploads or downloads in\n   * milliseconds.\n   */\n  get maxOperationRetryTime(): number {\n    return this._maxOperationRetryTime;\n  }\n\n  set maxOperationRetryTime(time: number) {\n    validateNumber(\n      'time',\n      /* minValue=*/ 0,\n      /* maxValue= */ Number.POSITIVE_INFINITY,\n      time\n    );\n    this._maxOperationRetryTime = time;\n  }\n\n  async _getAuthToken(): Promise<string | null> {\n    if (this._overrideAuthToken) {\n      return this._overrideAuthToken;\n    }\n    const auth = this._authProvider.getImmediate({ optional: true });\n    if (auth) {\n      const tokenData = await auth.getToken();\n      if (tokenData !== null) {\n        return tokenData.accessToken;\n      }\n    }\n    return null;\n  }\n\n  async _getAppCheckToken(): Promise<string | null> {\n    if (_isFirebaseServerApp(this.app) && this.app.settings.appCheckToken) {\n      return this.app.settings.appCheckToken;\n    }\n    const appCheck = this._appCheckProvider.getImmediate({ optional: true });\n    if (appCheck) {\n      const result = await appCheck.getToken();\n      // TODO: What do we want to do if there is an error getting the token?\n      // Context: appCheck.getToken() will never throw even if an error happened. In the error case, a dummy token will be\n      // returned along with an error field describing the error. In general, we shouldn't care about the error condition and just use\n      // the token (actual or dummy) to send requests.\n      return result.token;\n    }\n    return null;\n  }\n\n  /**\n   * Stop running requests and prevent more from being created.\n   */\n  _delete(): Promise<void> {\n    if (!this._deleted) {\n      this._deleted = true;\n      this._requests.forEach(request => request.cancel());\n      this._requests.clear();\n    }\n    return Promise.resolve();\n  }\n\n  /**\n   * Returns a new firebaseStorage.Reference object referencing this StorageService\n   * at the given Location.\n   */\n  _makeStorageReference(loc: Location): Reference {\n    return new Reference(this, loc);\n  }\n\n  /**\n   * @param requestInfo - HTTP RequestInfo object\n   * @param authToken - Firebase auth token\n   */\n  _makeRequest<I extends ConnectionType, O>(\n    requestInfo: RequestInfo<I, O>,\n    requestFactory: () => Connection<I>,\n    authToken: string | null,\n    appCheckToken: string | null,\n    retry = true\n  ): Request<O> {\n    if (!this._deleted) {\n      const request = makeRequest(\n        requestInfo,\n        this._appId,\n        authToken,\n        appCheckToken,\n        requestFactory,\n        this._firebaseVersion,\n        retry,\n        this._isUsingEmulator\n      );\n      this._requests.add(request);\n      // Request removes itself from set when complete.\n      request.getPromise().then(\n        () => this._requests.delete(request),\n        () => this._requests.delete(request)\n      );\n      return request;\n    } else {\n      return new FailRequest(appDeleted());\n    }\n  }\n\n  async makeRequestWithTokens<I extends ConnectionType, O>(\n    requestInfo: RequestInfo<I, O>,\n    requestFactory: () => Connection<I>\n  ): Promise<O> {\n    const [authToken, appCheckToken] = await Promise.all([\n      this._getAuthToken(),\n      this._getAppCheckToken()\n    ]);\n\n    return this._makeRequest(\n      requestInfo,\n      requestFactory,\n      authToken,\n      appCheckToken\n    ).getPromise();\n  }\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * Type constant for Firebase Storage.\n */\nexport const STORAGE_TYPE = 'storage';\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport { _getProvider, FirebaseApp, getApp } from '@firebase/app';\n\nimport {\n  ref as refInternal,\n  FirebaseStorageImpl,\n  connectStorageEmulator as connectEmulatorInternal\n} from './service';\nimport { Provider } from '@firebase/component';\n\nimport {\n  StorageReference,\n  FirebaseStorage,\n  UploadResult,\n  ListOptions,\n  ListResult,\n  UploadTask,\n  SettableMetadata,\n  UploadMetadata,\n  FullMetadata\n} from './public-types';\nimport { Metadata as MetadataInternal } from './metadata';\nimport {\n  uploadBytes as uploadBytesInternal,\n  uploadBytesResumable as uploadBytesResumableInternal,\n  uploadString as uploadStringInternal,\n  getMetadata as getMetadataInternal,\n  updateMetadata as updateMetadataInternal,\n  list as listInternal,\n  listAll as listAllInternal,\n  getDownloadURL as getDownloadURLInternal,\n  deleteObject as deleteObjectInternal,\n  Reference,\n  _getChild as _getChildInternal,\n  getBytesInternal\n} from './reference';\nimport { STORAGE_TYPE } from './constants';\nimport {\n  EmulatorMockTokenOptions,\n  getModularInstance,\n  getDefaultEmulatorHostnameAndPort\n} from '@firebase/util';\nimport { StringFormat } from './implementation/string';\n\nexport { EmulatorMockTokenOptions } from '@firebase/util';\n\nexport { StorageError, StorageErrorCode } from './implementation/error';\n\n/**\n * Public types.\n */\nexport * from './public-types';\n\nexport { Location as _Location } from './implementation/location';\nexport { UploadTask as _UploadTask } from './task';\nexport type { Reference as _Reference } from './reference';\nexport type { FirebaseStorageImpl as _FirebaseStorageImpl } from './service';\nexport { FbsBlob as _FbsBlob } from './implementation/blob';\nexport { dataFromString as _dataFromString } from './implementation/string';\nexport {\n  invalidRootOperation as _invalidRootOperation,\n  invalidArgument as _invalidArgument\n} from './implementation/error';\nexport {\n  TaskEvent as _TaskEvent,\n  TaskState as _TaskState\n} from './implementation/taskenums';\nexport { StringFormat };\n\n/**\n * Downloads the data at the object's location. Returns an error if the object\n * is not found.\n *\n * To use this functionality, you have to whitelist your app's origin in your\n * Cloud Storage bucket. See also\n * https://cloud.google.com/storage/docs/configuring-cors\n *\n * @public\n * @param ref - StorageReference where data should be downloaded.\n * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to\n * retrieve.\n * @returns A Promise containing the object's bytes\n */\nexport function getBytes(\n  ref: StorageReference,\n  maxDownloadSizeBytes?: number\n): Promise<ArrayBuffer> {\n  ref = getModularInstance(ref);\n  return getBytesInternal(ref as Reference, maxDownloadSizeBytes);\n}\n\n/**\n * Uploads data to this object's location.\n * The upload is not resumable.\n * @public\n * @param ref - {@link StorageReference} where data should be uploaded.\n * @param data - The data to upload.\n * @param metadata - Metadata for the data to upload.\n * @returns A Promise containing an UploadResult\n */\nexport function uploadBytes(\n  ref: StorageReference,\n  data: Blob | Uint8Array | ArrayBuffer,\n  metadata?: UploadMetadata\n): Promise<UploadResult> {\n  ref = getModularInstance(ref);\n  return uploadBytesInternal(\n    ref as Reference,\n    data,\n    metadata as MetadataInternal\n  );\n}\n\n/**\n * Uploads a string to this object's location.\n * The upload is not resumable.\n * @public\n * @param ref - {@link StorageReference} where string should be uploaded.\n * @param value - The string to upload.\n * @param format - The format of the string to upload.\n * @param metadata - Metadata for the string to upload.\n * @returns A Promise containing an UploadResult\n */\nexport function uploadString(\n  ref: StorageReference,\n  value: string,\n  format?: StringFormat,\n  metadata?: UploadMetadata\n): Promise<UploadResult> {\n  ref = getModularInstance(ref);\n  return uploadStringInternal(\n    ref as Reference,\n    value,\n    format,\n    metadata as MetadataInternal\n  );\n}\n\n/**\n * Uploads data to this object's location.\n * The upload can be paused and resumed, and exposes progress updates.\n * @public\n * @param ref - {@link StorageReference} where data should be uploaded.\n * @param data - The data to upload.\n * @param metadata - Metadata for the data to upload.\n * @returns An UploadTask\n */\nexport function uploadBytesResumable(\n  ref: StorageReference,\n  data: Blob | Uint8Array | ArrayBuffer,\n  metadata?: UploadMetadata\n): UploadTask {\n  ref = getModularInstance(ref);\n  return uploadBytesResumableInternal(\n    ref as Reference,\n    data,\n    metadata as MetadataInternal\n  ) as UploadTask;\n}\n\n/**\n * A `Promise` that resolves with the metadata for this object. If this\n * object doesn't exist or metadata cannot be retrieved, the promise is\n * rejected.\n * @public\n * @param ref - {@link StorageReference} to get metadata from.\n */\nexport function getMetadata(ref: StorageReference): Promise<FullMetadata> {\n  ref = getModularInstance(ref);\n  return getMetadataInternal(ref as Reference) as Promise<FullMetadata>;\n}\n\n/**\n * Updates the metadata for this object.\n * @public\n * @param ref - {@link StorageReference} to update metadata for.\n * @param metadata - The new metadata for the object.\n *     Only values that have been explicitly set will be changed. Explicitly\n *     setting a value to null will remove the metadata.\n * @returns A `Promise` that resolves with the new metadata for this object.\n */\nexport function updateMetadata(\n  ref: StorageReference,\n  metadata: SettableMetadata\n): Promise<FullMetadata> {\n  ref = getModularInstance(ref);\n  return updateMetadataInternal(\n    ref as Reference,\n    metadata as Partial<MetadataInternal>\n  ) as Promise<FullMetadata>;\n}\n\n/**\n * List items (files) and prefixes (folders) under this storage reference.\n *\n * List API is only available for Firebase Rules Version 2.\n *\n * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'\n * delimited folder structure.\n * Refer to GCS's List API if you want to learn more.\n *\n * To adhere to Firebase Rules's Semantics, Firebase Storage does not\n * support objects whose paths end with \"/\" or contain two consecutive\n * \"/\"s. Firebase Storage List API will filter these unsupported objects.\n * list() may fail if there are too many unsupported objects in the bucket.\n * @public\n *\n * @param ref - {@link StorageReference} to get list from.\n * @param options - See {@link ListOptions} for details.\n * @returns A `Promise` that resolves with the items and prefixes.\n *      `prefixes` contains references to sub-folders and `items`\n *      contains references to objects in this folder. `nextPageToken`\n *      can be used to get the rest of the results.\n */\nexport function list(\n  ref: StorageReference,\n  options?: ListOptions\n): Promise<ListResult> {\n  ref = getModularInstance(ref);\n  return listInternal(ref as Reference, options);\n}\n\n/**\n * List all items (files) and prefixes (folders) under this storage reference.\n *\n * This is a helper method for calling list() repeatedly until there are\n * no more results. The default pagination size is 1000.\n *\n * Note: The results may not be consistent if objects are changed while this\n * operation is running.\n *\n * Warning: `listAll` may potentially consume too many resources if there are\n * too many results.\n * @public\n * @param ref - {@link StorageReference} to get list from.\n *\n * @returns A `Promise` that resolves with all the items and prefixes under\n *      the current storage reference. `prefixes` contains references to\n *      sub-directories and `items` contains references to objects in this\n *      folder. `nextPageToken` is never returned.\n */\nexport function listAll(ref: StorageReference): Promise<ListResult> {\n  ref = getModularInstance(ref);\n  return listAllInternal(ref as Reference);\n}\n\n/**\n * Returns the download URL for the given {@link StorageReference}.\n * @public\n * @param ref - {@link StorageReference} to get the download URL for.\n * @returns A `Promise` that resolves with the download\n *     URL for this object.\n */\nexport function getDownloadURL(ref: StorageReference): Promise<string> {\n  ref = getModularInstance(ref);\n  return getDownloadURLInternal(ref as Reference);\n}\n\n/**\n * Deletes the object at this location.\n * @public\n * @param ref - {@link StorageReference} for object to delete.\n * @returns A `Promise` that resolves if the deletion succeeds.\n */\nexport function deleteObject(ref: StorageReference): Promise<void> {\n  ref = getModularInstance(ref);\n  return deleteObjectInternal(ref as Reference);\n}\n\n/**\n * Returns a {@link StorageReference} for the given url.\n * @param storage - {@link FirebaseStorage} instance.\n * @param url - URL. If empty, returns root reference.\n * @public\n */\nexport function ref(storage: FirebaseStorage, url?: string): StorageReference;\n/**\n * Returns a {@link StorageReference} for the given path in the\n * default bucket.\n * @param storageOrRef - {@link FirebaseStorage} or {@link StorageReference}.\n * @param pathOrUrlStorage - path. If empty, returns root reference (if {@link FirebaseStorage}\n * instance provided) or returns same reference (if {@link StorageReference} provided).\n * @public\n */\nexport function ref(\n  storageOrRef: FirebaseStorage | StorageReference,\n  path?: string\n): StorageReference;\nexport function ref(\n  serviceOrRef: FirebaseStorage | StorageReference,\n  pathOrUrl?: string\n): StorageReference | null {\n  serviceOrRef = getModularInstance(serviceOrRef);\n  return refInternal(\n    serviceOrRef as FirebaseStorageImpl | Reference,\n    pathOrUrl\n  );\n}\n\n/**\n * @internal\n */\nexport function _getChild(ref: StorageReference, childPath: string): Reference {\n  return _getChildInternal(ref as Reference, childPath);\n}\n\n/**\n * Gets a {@link FirebaseStorage} instance for the given Firebase app.\n * @public\n * @param app - Firebase app to get {@link FirebaseStorage} instance for.\n * @param bucketUrl - The gs:// url to your Firebase Storage Bucket.\n * If not passed, uses the app's default Storage Bucket.\n * @returns A {@link FirebaseStorage} instance.\n */\nexport function getStorage(\n  app: FirebaseApp = getApp(),\n  bucketUrl?: string\n): FirebaseStorage {\n  app = getModularInstance(app);\n  const storageProvider: Provider<'storage'> = _getProvider(app, STORAGE_TYPE);\n  const storageInstance = storageProvider.getImmediate({\n    identifier: bucketUrl\n  });\n  const emulator = getDefaultEmulatorHostnameAndPort('storage');\n  if (emulator) {\n    connectStorageEmulator(storageInstance, ...emulator);\n  }\n  return storageInstance;\n}\n\n/**\n * Modify this {@link FirebaseStorage} instance to communicate with the Cloud Storage emulator.\n *\n * @param storage - The {@link FirebaseStorage} instance\n * @param host - The emulator host (ex: localhost)\n * @param port - The emulator port (ex: 5001)\n * @param options - Emulator options. `options.mockUserToken` is the mock auth\n * token to use for unit testing Security Rules.\n * @public\n */\nexport function connectStorageEmulator(\n  storage: FirebaseStorage,\n  host: string,\n  port: number,\n  options: {\n    mockUserToken?: EmulatorMockTokenOptions | string;\n  } = {}\n): void {\n  connectEmulatorInternal(storage as FirebaseStorageImpl, host, port, options);\n}\n","/**\n * @license\n * Copyright 2021 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { StorageReference } from './public-types';\nimport { Reference, getStreamInternal } from './reference';\nimport { getModularInstance } from '@firebase/util';\n\n/**\n * Downloads the data at the object's location. Returns an error if the object\n * is not found.\n *\n * To use this functionality, you have to whitelist your app's origin in your\n * Cloud Storage bucket. See also\n * https://cloud.google.com/storage/docs/configuring-cors\n *\n * This API is not available in Node.\n *\n * @public\n * @param ref - StorageReference where data should be downloaded.\n * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to\n * retrieve.\n * @returns A Promise that resolves with a Blob containing the object's bytes\n */\n// eslint-disable-next-line @typescript-eslint/no-unused-vars\nexport function getBlob(\n  ref: StorageReference,\n  maxDownloadSizeBytes?: number\n): Promise<Blob> {\n  throw new Error('getBlob() is only available in Browser-like environments');\n}\n\n/**\n * Downloads the data at the object's location. Raises an error event if the\n * object is not found.\n *\n * This API is only available in Node.\n *\n * @public\n * @param ref - StorageReference where data should be downloaded.\n * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to\n * retrieve.\n * @returns A stream with the object's data as bytes\n */\nexport function getStream(\n  ref: StorageReference,\n  maxDownloadSizeBytes?: number\n): ReadableStream {\n  ref = getModularInstance(ref);\n  return getStreamInternal(ref as Reference, maxDownloadSizeBytes);\n}\n","/**\n * Cloud Storage for Firebase\n *\n * @packageDocumentation\n */\n\n/**\n * @license\n * Copyright 2021 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n// eslint-disable-next-line import/no-extraneous-dependencies\nimport {\n  _registerComponent,\n  registerVersion,\n  SDK_VERSION\n} from '@firebase/app';\n\nimport { FirebaseStorageImpl } from './service';\nimport {\n  Component,\n  ComponentType,\n  ComponentContainer,\n  InstanceFactoryOptions\n} from '@firebase/component';\n\nimport { name, version } from '../package.json';\n\nimport { FirebaseStorage } from './public-types';\nimport { STORAGE_TYPE } from './constants';\n\nexport * from './api';\nexport * from './api.node';\n\nfunction factory(\n  container: ComponentContainer,\n  { instanceIdentifier: url }: InstanceFactoryOptions\n): FirebaseStorage {\n  const app = container.getProvider('app').getImmediate();\n  const authProvider = container.getProvider('auth-internal');\n  const appCheckProvider = container.getProvider('app-check-internal');\n\n  return new FirebaseStorageImpl(\n    app,\n    authProvider,\n    appCheckProvider,\n    url,\n    SDK_VERSION\n  );\n}\n\nfunction registerStorage(): void {\n  _registerComponent(\n    new Component(\n      STORAGE_TYPE,\n      factory,\n      ComponentType.PUBLIC\n    ).setMultipleInstances(true)\n  );\n\n  registerVersion(name, 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\ No newline at end of file
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/package.json b/frontend-old/node_modules/@firebase/storage/dist/node-esm/package.json
new file mode 100644
index 0000000..7c34deb
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/package.json
@@ -0,0 +1 @@
+{"type":"module"}
\ No newline at end of file
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/api.browser.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/api.browser.d.ts
new file mode 100644
index 0000000..00e4761
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/api.browser.d.ts
@@ -0,0 +1,47 @@
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { StorageReference } from './public-types';
+/**
+ * Downloads the data at the object's location. Returns an error if the object
+ * is not found.
+ *
+ * To use this functionality, you have to whitelist your app's origin in your
+ * Cloud Storage bucket. See also
+ * https://cloud.google.com/storage/docs/configuring-cors
+ *
+ * This API is not available in Node.
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A Promise that resolves with a Blob containing the object's bytes
+ */
+export declare function getBlob(ref: StorageReference, maxDownloadSizeBytes?: number): Promise<Blob>;
+/**
+ * Downloads the data at the object's location. Raises an error event if the
+ * object is not found.
+ *
+ * This API is only available in Node.
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A stream with the object's data as bytes
+ */
+export declare function getStream(ref: StorageReference, maxDownloadSizeBytes?: number): ReadableStream;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/api.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/api.d.ts
new file mode 100644
index 0000000..3ba97cc
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/api.d.ts
@@ -0,0 +1,200 @@
+/**
+ * @license
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { FirebaseApp } from '@firebase/app';
+import { StorageReference, FirebaseStorage, UploadResult, ListOptions, ListResult, UploadTask, SettableMetadata, UploadMetadata, FullMetadata } from './public-types';
+import { Reference } from './reference';
+import { EmulatorMockTokenOptions } from '@firebase/util';
+import { StringFormat } from './implementation/string';
+export { EmulatorMockTokenOptions } from '@firebase/util';
+export { StorageError, StorageErrorCode } from './implementation/error';
+/**
+ * Public types.
+ */
+export * from './public-types';
+export { Location as _Location } from './implementation/location';
+export { UploadTask as _UploadTask } from './task';
+export type { Reference as _Reference } from './reference';
+export type { FirebaseStorageImpl as _FirebaseStorageImpl } from './service';
+export { FbsBlob as _FbsBlob } from './implementation/blob';
+export { dataFromString as _dataFromString } from './implementation/string';
+export { invalidRootOperation as _invalidRootOperation, invalidArgument as _invalidArgument } from './implementation/error';
+export { TaskEvent as _TaskEvent, TaskState as _TaskState } from './implementation/taskenums';
+export { StringFormat };
+/**
+ * Downloads the data at the object's location. Returns an error if the object
+ * is not found.
+ *
+ * To use this functionality, you have to whitelist your app's origin in your
+ * Cloud Storage bucket. See also
+ * https://cloud.google.com/storage/docs/configuring-cors
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A Promise containing the object's bytes
+ */
+export declare function getBytes(ref: StorageReference, maxDownloadSizeBytes?: number): Promise<ArrayBuffer>;
+/**
+ * Uploads data to this object's location.
+ * The upload is not resumable.
+ * @public
+ * @param ref - {@link StorageReference} where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the data to upload.
+ * @returns A Promise containing an UploadResult
+ */
+export declare function uploadBytes(ref: StorageReference, data: Blob | Uint8Array | ArrayBuffer, metadata?: UploadMetadata): Promise<UploadResult>;
+/**
+ * Uploads a string to this object's location.
+ * The upload is not resumable.
+ * @public
+ * @param ref - {@link StorageReference} where string should be uploaded.
+ * @param value - The string to upload.
+ * @param format - The format of the string to upload.
+ * @param metadata - Metadata for the string to upload.
+ * @returns A Promise containing an UploadResult
+ */
+export declare function uploadString(ref: StorageReference, value: string, format?: StringFormat, metadata?: UploadMetadata): Promise<UploadResult>;
+/**
+ * Uploads data to this object's location.
+ * The upload can be paused and resumed, and exposes progress updates.
+ * @public
+ * @param ref - {@link StorageReference} where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the data to upload.
+ * @returns An UploadTask
+ */
+export declare function uploadBytesResumable(ref: StorageReference, data: Blob | Uint8Array | ArrayBuffer, metadata?: UploadMetadata): UploadTask;
+/**
+ * A `Promise` that resolves with the metadata for this object. If this
+ * object doesn't exist or metadata cannot be retrieved, the promise is
+ * rejected.
+ * @public
+ * @param ref - {@link StorageReference} to get metadata from.
+ */
+export declare function getMetadata(ref: StorageReference): Promise<FullMetadata>;
+/**
+ * Updates the metadata for this object.
+ * @public
+ * @param ref - {@link StorageReference} to update metadata for.
+ * @param metadata - The new metadata for the object.
+ *     Only values that have been explicitly set will be changed. Explicitly
+ *     setting a value to null will remove the metadata.
+ * @returns A `Promise` that resolves with the new metadata for this object.
+ */
+export declare function updateMetadata(ref: StorageReference, metadata: SettableMetadata): Promise<FullMetadata>;
+/**
+ * List items (files) and prefixes (folders) under this storage reference.
+ *
+ * List API is only available for Firebase Rules Version 2.
+ *
+ * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'
+ * delimited folder structure.
+ * Refer to GCS's List API if you want to learn more.
+ *
+ * To adhere to Firebase Rules's Semantics, Firebase Storage does not
+ * support objects whose paths end with "/" or contain two consecutive
+ * "/"s. Firebase Storage List API will filter these unsupported objects.
+ * list() may fail if there are too many unsupported objects in the bucket.
+ * @public
+ *
+ * @param ref - {@link StorageReference} to get list from.
+ * @param options - See {@link ListOptions} for details.
+ * @returns A `Promise` that resolves with the items and prefixes.
+ *      `prefixes` contains references to sub-folders and `items`
+ *      contains references to objects in this folder. `nextPageToken`
+ *      can be used to get the rest of the results.
+ */
+export declare function list(ref: StorageReference, options?: ListOptions): Promise<ListResult>;
+/**
+ * List all items (files) and prefixes (folders) under this storage reference.
+ *
+ * This is a helper method for calling list() repeatedly until there are
+ * no more results. The default pagination size is 1000.
+ *
+ * Note: The results may not be consistent if objects are changed while this
+ * operation is running.
+ *
+ * Warning: `listAll` may potentially consume too many resources if there are
+ * too many results.
+ * @public
+ * @param ref - {@link StorageReference} to get list from.
+ *
+ * @returns A `Promise` that resolves with all the items and prefixes under
+ *      the current storage reference. `prefixes` contains references to
+ *      sub-directories and `items` contains references to objects in this
+ *      folder. `nextPageToken` is never returned.
+ */
+export declare function listAll(ref: StorageReference): Promise<ListResult>;
+/**
+ * Returns the download URL for the given {@link StorageReference}.
+ * @public
+ * @param ref - {@link StorageReference} to get the download URL for.
+ * @returns A `Promise` that resolves with the download
+ *     URL for this object.
+ */
+export declare function getDownloadURL(ref: StorageReference): Promise<string>;
+/**
+ * Deletes the object at this location.
+ * @public
+ * @param ref - {@link StorageReference} for object to delete.
+ * @returns A `Promise` that resolves if the deletion succeeds.
+ */
+export declare function deleteObject(ref: StorageReference): Promise<void>;
+/**
+ * Returns a {@link StorageReference} for the given url.
+ * @param storage - {@link FirebaseStorage} instance.
+ * @param url - URL. If empty, returns root reference.
+ * @public
+ */
+export declare function ref(storage: FirebaseStorage, url?: string): StorageReference;
+/**
+ * Returns a {@link StorageReference} for the given path in the
+ * default bucket.
+ * @param storageOrRef - {@link FirebaseStorage} or {@link StorageReference}.
+ * @param pathOrUrlStorage - path. If empty, returns root reference (if {@link FirebaseStorage}
+ * instance provided) or returns same reference (if {@link StorageReference} provided).
+ * @public
+ */
+export declare function ref(storageOrRef: FirebaseStorage | StorageReference, path?: string): StorageReference;
+/**
+ * @internal
+ */
+export declare function _getChild(ref: StorageReference, childPath: string): Reference;
+/**
+ * Gets a {@link FirebaseStorage} instance for the given Firebase app.
+ * @public
+ * @param app - Firebase app to get {@link FirebaseStorage} instance for.
+ * @param bucketUrl - The gs:// url to your Firebase Storage Bucket.
+ * If not passed, uses the app's default Storage Bucket.
+ * @returns A {@link FirebaseStorage} instance.
+ */
+export declare function getStorage(app?: FirebaseApp, bucketUrl?: string): FirebaseStorage;
+/**
+ * Modify this {@link FirebaseStorage} instance to communicate with the Cloud Storage emulator.
+ *
+ * @param storage - The {@link FirebaseStorage} instance
+ * @param host - The emulator host (ex: localhost)
+ * @param port - The emulator port (ex: 5001)
+ * @param options - Emulator options. `options.mockUserToken` is the mock auth
+ * token to use for unit testing Security Rules.
+ * @public
+ */
+export declare function connectStorageEmulator(storage: FirebaseStorage, host: string, port: number, options?: {
+    mockUserToken?: EmulatorMockTokenOptions | string;
+}): void;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/api.node.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/api.node.d.ts
new file mode 100644
index 0000000..00e4761
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/api.node.d.ts
@@ -0,0 +1,47 @@
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { StorageReference } from './public-types';
+/**
+ * Downloads the data at the object's location. Returns an error if the object
+ * is not found.
+ *
+ * To use this functionality, you have to whitelist your app's origin in your
+ * Cloud Storage bucket. See also
+ * https://cloud.google.com/storage/docs/configuring-cors
+ *
+ * This API is not available in Node.
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A Promise that resolves with a Blob containing the object's bytes
+ */
+export declare function getBlob(ref: StorageReference, maxDownloadSizeBytes?: number): Promise<Blob>;
+/**
+ * Downloads the data at the object's location. Raises an error event if the
+ * object is not found.
+ *
+ * This API is only available in Node.
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A stream with the object's data as bytes
+ */
+export declare function getStream(ref: StorageReference, maxDownloadSizeBytes?: number): ReadableStream;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/constants.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/constants.d.ts
new file mode 100644
index 0000000..c9c810f
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/constants.d.ts
@@ -0,0 +1,20 @@
+/**
+ * @license
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Type constant for Firebase Storage.
+ */
+export declare const STORAGE_TYPE = "storage";
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/async.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/async.d.ts
new file mode 100644
index 0000000..9d01868
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/async.d.ts
@@ -0,0 +1,22 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Returns a function that invokes f with its arguments asynchronously as a
+ * microtask, i.e. as soon as possible after the current script returns back
+ * into browser code.
+ */
+export declare function async(f: Function): Function;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/backoff.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/backoff.d.ts
new file mode 100644
index 0000000..39ab9b7
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/backoff.d.ts
@@ -0,0 +1,43 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Provides a method for running a function with exponential
+ * backoff.
+ */
+type id = (p1: boolean) => void;
+export { id };
+/**
+ * Accepts a callback for an action to perform (`doRequest`),
+ * and then a callback for when the backoff has completed (`backoffCompleteCb`).
+ * The callback sent to start requires an argument to call (`onRequestComplete`).
+ * When `start` calls `doRequest`, it passes a callback for when the request has
+ * completed, `onRequestComplete`. Based on this, the backoff continues, with
+ * another call to `doRequest` and the above loop continues until the timeout
+ * is hit, or a successful response occurs.
+ * @description
+ * @param doRequest Callback to perform request
+ * @param backoffCompleteCb Callback to call when backoff has been completed
+ */
+export declare function start(doRequest: (onRequestComplete: (success: boolean) => void, canceled: boolean) => void, backoffCompleteCb: (...args: any[]) => unknown, timeout: number): id;
+/**
+ * Stops the retry loop from repeating.
+ * If the function is currently "in between" retries, it is invoked immediately
+ * with the second parameter as "true". Otherwise, it will be invoked once more
+ * after the current invocation finishes iff the current invocation would have
+ * triggered another retry.
+ */
+export declare function stop(id: id): void;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/blob.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/blob.d.ts
new file mode 100644
index 0000000..419491b
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/blob.d.ts
@@ -0,0 +1,34 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @param opt_elideCopy - If true, doesn't copy mutable input data
+ *     (e.g. Uint8Arrays). Pass true only if you know the objects will not be
+ *     modified after this blob's construction.
+ *
+ * @internal
+ */
+export declare class FbsBlob {
+    private data_;
+    private size_;
+    private type_;
+    constructor(data: Blob | Uint8Array | ArrayBuffer, elideCopy?: boolean);
+    size(): number;
+    type(): string;
+    slice(startByte: number, endByte: number): FbsBlob | null;
+    static getBlob(...args: Array<string | FbsBlob>): FbsBlob | null;
+    uploadData(): Blob | Uint8Array;
+}
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/connection.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/connection.d.ts
new file mode 100644
index 0000000..269f2d9
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/connection.d.ts
@@ -0,0 +1,56 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/** Network headers */
+export type Headers = Record<string, string>;
+/** Response type exposed by the networking APIs. */
+export type ConnectionType = string | ArrayBuffer | Blob | ReadableStream<Uint8Array>;
+/**
+ * A lightweight wrapper around XMLHttpRequest with a
+ * goog.net.XhrIo-like interface.
+ *
+ * You can create a new connection by invoking `newTextConnection()`,
+ * `newBytesConnection()` or `newStreamConnection()`.
+ */
+export interface Connection<T extends ConnectionType> {
+    /**
+     * Sends a request to the provided URL.
+     *
+     * This method never rejects its promise. In case of encountering an error,
+     * it sets an error code internally which can be accessed by calling
+     * getErrorCode() by callers.
+     */
+    send(url: string, method: string, isUsingEmulator: boolean, body?: ArrayBufferView | Blob | string | null, headers?: Headers): Promise<void>;
+    getErrorCode(): ErrorCode;
+    getStatus(): number;
+    getResponse(): T;
+    getErrorText(): string;
+    /**
+     * Abort the request.
+     */
+    abort(): void;
+    getResponseHeader(header: string): string | null;
+    addUploadProgressListener(listener: (p1: ProgressEvent) => void): void;
+    removeUploadProgressListener(listener: (p1: ProgressEvent) => void): void;
+}
+/**
+ * Error codes for requests made by the XhrIo wrapper.
+ */
+export declare enum ErrorCode {
+    NO_ERROR = 0,
+    NETWORK_ERROR = 1,
+    ABORT = 2
+}
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/constants.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/constants.d.ts
new file mode 100644
index 0000000..957b4d6
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/constants.d.ts
@@ -0,0 +1,48 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Constants used in the Firebase Storage library.
+ */
+/**
+ * Domain name for firebase storage.
+ */
+export declare const DEFAULT_HOST = "firebasestorage.googleapis.com";
+/**
+ * The key in Firebase config json for the storage bucket.
+ */
+export declare const CONFIG_STORAGE_BUCKET_KEY = "storageBucket";
+/**
+ * 2 minutes
+ *
+ * The timeout for all operations except upload.
+ */
+export declare const DEFAULT_MAX_OPERATION_RETRY_TIME: number;
+/**
+ * 10 minutes
+ *
+ * The timeout for upload.
+ */
+export declare const DEFAULT_MAX_UPLOAD_RETRY_TIME: number;
+/**
+ * 1 second
+ */
+export declare const DEFAULT_MIN_SLEEP_TIME_MILLIS = 1000;
+/**
+ * This is the value of Number.MIN_SAFE_INTEGER, which is not well supported
+ * enough for us to use it directly.
+ */
+export declare const MIN_SAFE_INTEGER = -9007199254740991;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/error.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/error.d.ts
new file mode 100644
index 0000000..dfc0884
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/error.d.ts
@@ -0,0 +1,126 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { FirebaseError } from '@firebase/util';
+/**
+ * An error returned by the Firebase Storage SDK.
+ * @public
+ */
+export declare class StorageError extends FirebaseError {
+    private status_;
+    private readonly _baseMessage;
+    /**
+     * Stores custom error data unique to the `StorageError`.
+     */
+    customData: {
+        serverResponse: string | null;
+    };
+    /**
+     * @param code - A `StorageErrorCode` string to be prefixed with 'storage/' and
+     *  added to the end of the message.
+     * @param message  - Error message.
+     * @param status_ - Corresponding HTTP Status Code
+     */
+    constructor(code: StorageErrorCode, message: string, status_?: number);
+    get status(): number;
+    set status(status: number);
+    /**
+     * Compares a `StorageErrorCode` against this error's code, filtering out the prefix.
+     */
+    _codeEquals(code: StorageErrorCode): boolean;
+    /**
+     * Optional response message that was added by the server.
+     */
+    get serverResponse(): null | string;
+    set serverResponse(serverResponse: string | null);
+}
+export declare const errors: {};
+/**
+ * @public
+ * Error codes that can be attached to `StorageError` objects.
+ */
+export declare enum StorageErrorCode {
+    UNKNOWN = "unknown",
+    OBJECT_NOT_FOUND = "object-not-found",
+    BUCKET_NOT_FOUND = "bucket-not-found",
+    PROJECT_NOT_FOUND = "project-not-found",
+    QUOTA_EXCEEDED = "quota-exceeded",
+    UNAUTHENTICATED = "unauthenticated",
+    UNAUTHORIZED = "unauthorized",
+    UNAUTHORIZED_APP = "unauthorized-app",
+    RETRY_LIMIT_EXCEEDED = "retry-limit-exceeded",
+    INVALID_CHECKSUM = "invalid-checksum",
+    CANCELED = "canceled",
+    INVALID_EVENT_NAME = "invalid-event-name",
+    INVALID_URL = "invalid-url",
+    INVALID_DEFAULT_BUCKET = "invalid-default-bucket",
+    NO_DEFAULT_BUCKET = "no-default-bucket",
+    CANNOT_SLICE_BLOB = "cannot-slice-blob",
+    SERVER_FILE_WRONG_SIZE = "server-file-wrong-size",
+    NO_DOWNLOAD_URL = "no-download-url",
+    INVALID_ARGUMENT = "invalid-argument",
+    INVALID_ARGUMENT_COUNT = "invalid-argument-count",
+    APP_DELETED = "app-deleted",
+    INVALID_ROOT_OPERATION = "invalid-root-operation",
+    INVALID_FORMAT = "invalid-format",
+    INTERNAL_ERROR = "internal-error",
+    UNSUPPORTED_ENVIRONMENT = "unsupported-environment"
+}
+export declare function prependCode(code: StorageErrorCode): string;
+export declare function unknown(): StorageError;
+export declare function objectNotFound(path: string): StorageError;
+export declare function bucketNotFound(bucket: string): StorageError;
+export declare function projectNotFound(project: string): StorageError;
+export declare function quotaExceeded(bucket: string): StorageError;
+export declare function unauthenticated(): StorageError;
+export declare function unauthorizedApp(): StorageError;
+export declare function unauthorized(path: string): StorageError;
+export declare function retryLimitExceeded(): StorageError;
+export declare function invalidChecksum(path: string, checksum: string, calculated: string): StorageError;
+export declare function canceled(): StorageError;
+export declare function invalidEventName(name: string): StorageError;
+export declare function invalidUrl(url: string): StorageError;
+export declare function invalidDefaultBucket(bucket: string): StorageError;
+export declare function noDefaultBucket(): StorageError;
+export declare function cannotSliceBlob(): StorageError;
+export declare function serverFileWrongSize(): StorageError;
+export declare function noDownloadURL(): StorageError;
+export declare function missingPolyFill(polyFill: string): StorageError;
+/**
+ * @internal
+ */
+export declare function invalidArgument(message: string): StorageError;
+export declare function invalidArgumentCount(argMin: number, argMax: number, fnName: string, real: number): StorageError;
+export declare function appDeleted(): StorageError;
+/**
+ * @param name - The name of the operation that was invalid.
+ *
+ * @internal
+ */
+export declare function invalidRootOperation(name: string): StorageError;
+/**
+ * @param format - The format that was not valid.
+ * @param message - A message describing the format violation.
+ */
+export declare function invalidFormat(format: string, message: string): StorageError;
+/**
+ * @param message - A message describing the internal error.
+ */
+export declare function unsupportedEnvironment(message: string): StorageError;
+/**
+ * @param message - A message describing the internal error.
+ */
+export declare function internalError(message: string): StorageError;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/failrequest.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/failrequest.d.ts
new file mode 100644
index 0000000..89d079c
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/failrequest.d.ts
@@ -0,0 +1,29 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { StorageError } from './error';
+import { Request } from './request';
+/**
+ * A request whose promise always fails.
+ */
+export declare class FailRequest<T> implements Request<T> {
+    promise_: Promise<T>;
+    constructor(error: StorageError);
+    /** @inheritDoc */
+    getPromise(): Promise<T>;
+    /** @inheritDoc */
+    cancel(_appDelete?: boolean): void;
+}
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/fs.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/fs.d.ts
new file mode 100644
index 0000000..30cd68d
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/fs.d.ts
@@ -0,0 +1,17 @@
+/**
+ * Concatenates one or more values together and converts them to a Blob.
+ *
+ * @param args The values that will make up the resulting blob.
+ * @return The blob.
+ */
+export declare function getBlob(...args: Array<string | Blob | ArrayBuffer>): Blob;
+/**
+ * Slices the blob. The returned blob contains data from the start byte
+ * (inclusive) till the end byte (exclusive). Negative indices cannot be used.
+ *
+ * @param blob The blob to be sliced.
+ * @param start Index of the starting byte.
+ * @param end Index of the ending byte.
+ * @return The blob slice or null if not supported.
+ */
+export declare function sliceBlob(blob: Blob, start: number, end: number): Blob | null;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/json.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/json.d.ts
new file mode 100644
index 0000000..58151dc
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/json.d.ts
@@ -0,0 +1,7 @@
+/**
+ * Returns the Object resulting from parsing the given JSON, or null if the
+ * given string does not represent a JSON object.
+ */
+export declare function jsonObjectOrNull(s: string): {
+    [name: string]: unknown;
+} | null;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/list.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/list.d.ts
new file mode 100644
index 0000000..9107503
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/list.d.ts
@@ -0,0 +1,19 @@
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { ListResult } from '../list';
+import { FirebaseStorageImpl } from '../service';
+export declare function fromResponseString(service: FirebaseStorageImpl, bucket: string, resourceString: string): ListResult | null;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/location.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/location.d.ts
new file mode 100644
index 0000000..f6e1ab6
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/location.d.ts
@@ -0,0 +1,32 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Firebase Storage location data.
+ *
+ * @internal
+ */
+export declare class Location {
+    readonly bucket: string;
+    private path_;
+    constructor(bucket: string, path: string);
+    get path(): string;
+    get isRoot(): boolean;
+    fullServerUrl(): string;
+    bucketOnlyServerUrl(): string;
+    static makeFromBucketSpec(bucketString: string, host: string): Location;
+    static makeFromUrl(url: string, host: string): Location;
+}
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/metadata.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/metadata.d.ts
new file mode 100644
index 0000000..fadfd35
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/metadata.d.ts
@@ -0,0 +1,40 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Documentation for the metadata format
+ */
+import { Metadata } from '../metadata';
+import { FirebaseStorageImpl } from '../service';
+export declare function noXform_<T>(metadata: Metadata, value: T): T;
+declare class Mapping<T> {
+    server: string;
+    local: string;
+    writable: boolean;
+    xform: (p1: Metadata, p2?: T) => T | undefined;
+    constructor(server: string, local?: string | null, writable?: boolean, xform?: ((p1: Metadata, p2?: T) => T | undefined) | null);
+}
+type Mappings = Array<Mapping<string> | Mapping<number>>;
+export { Mappings };
+export declare function xformPath(fullPath: string | undefined): string | undefined;
+export declare function getMappings(): Mappings;
+export declare function addRef(metadata: Metadata, service: FirebaseStorageImpl): void;
+export declare function fromResource(service: FirebaseStorageImpl, resource: {
+    [name: string]: unknown;
+}, mappings: Mappings): Metadata;
+export declare function fromResourceString(service: FirebaseStorageImpl, resourceString: string, mappings: Mappings): Metadata | null;
+export declare function downloadUrlFromResourceString(metadata: Metadata, resourceString: string, host: string, protocol: string): string | null;
+export declare function toResourceString(metadata: Partial<Metadata>, mappings: Mappings): string;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/observer.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/observer.d.ts
new file mode 100644
index 0000000..0702651
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/observer.d.ts
@@ -0,0 +1,47 @@
+import { StorageError } from './error';
+/**
+ * Function that is called once for each value in a stream of values.
+ */
+export type NextFn<T> = (value: T) => void;
+/**
+ * A function that is called with a `StorageError`
+ * if the event stream ends due to an error.
+ */
+export type ErrorFn = (error: StorageError) => void;
+/**
+ * A function that is called if the event stream ends normally.
+ */
+export type CompleteFn = () => void;
+/**
+ * Unsubscribes from a stream.
+ */
+export type Unsubscribe = () => void;
+/**
+ * An observer identical to the `Observer` defined in packages/util except the
+ * error passed into the ErrorFn is specifically a `StorageError`.
+ */
+export interface StorageObserver<T> {
+    /**
+     * Function that is called once for each value in the event stream.
+     */
+    next?: NextFn<T>;
+    /**
+     * A function that is called with a `StorageError`
+     * if the event stream ends due to an error.
+     */
+    error?: ErrorFn;
+    /**
+     * A function that is called if the event stream ends normally.
+     */
+    complete?: CompleteFn;
+}
+/**
+ * Subscribes to an event stream.
+ */
+export type Subscribe<T> = (next?: NextFn<T> | StorageObserver<T>, error?: ErrorFn, complete?: CompleteFn) => Unsubscribe;
+export declare class Observer<T> implements StorageObserver<T> {
+    next?: NextFn<T>;
+    error?: ErrorFn;
+    complete?: CompleteFn;
+    constructor(nextOrObserver?: NextFn<T> | StorageObserver<T>, error?: ErrorFn, complete?: CompleteFn);
+}
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/path.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/path.d.ts
new file mode 100644
index 0000000..f566805
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/path.d.ts
@@ -0,0 +1,31 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Contains helper methods for manipulating paths.
+ */
+/**
+ * @return Null if the path is already at the root.
+ */
+export declare function parent(path: string): string | null;
+export declare function child(path: string, childPath: string): string;
+/**
+ * Returns the last component of a path.
+ * '/foo/bar' -> 'bar'
+ * '/foo/bar/baz/' -> 'baz/'
+ * '/a' -> 'a'
+ */
+export declare function lastComponent(path: string): string;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/request.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/request.d.ts
new file mode 100644
index 0000000..1b01a28
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/request.d.ts
@@ -0,0 +1,47 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { RequestInfo } from './requestinfo';
+import { Connection, Headers, ConnectionType } from './connection';
+export interface Request<T> {
+    getPromise(): Promise<T>;
+    /**
+     * Cancels the request. IMPORTANT: the promise may still be resolved with an
+     * appropriate value (if the request is finished before you call this method,
+     * but the promise has not yet been resolved), so don't just assume it will be
+     * rejected if you call this function.
+     * @param appDelete - True if the cancelation came from the app being deleted.
+     */
+    cancel(appDelete?: boolean): void;
+}
+/**
+ * A collection of information about the result of a network request.
+ * @param opt_canceled - Defaults to false.
+ */
+export declare class RequestEndStatus<I extends ConnectionType> {
+    wasSuccessCode: boolean;
+    connection: Connection<I> | null;
+    /**
+     * True if the request was canceled.
+     */
+    canceled: boolean;
+    constructor(wasSuccessCode: boolean, connection: Connection<I> | null, canceled?: boolean);
+}
+export declare function addAuthHeader_(headers: Headers, authToken: string | null): void;
+export declare function addVersionHeader_(headers: Headers, firebaseVersion?: string): void;
+export declare function addGmpidHeader_(headers: Headers, appId: string | null): void;
+export declare function addAppCheckHeader_(headers: Headers, appCheckToken: string | null): void;
+export declare function makeRequest<I extends ConnectionType, O>(requestInfo: RequestInfo<I, O>, appId: string | null, authToken: string | null, appCheckToken: string | null, requestFactory: () => Connection<I>, firebaseVersion?: string, retry?: boolean, isUsingEmulator?: boolean): Request<O>;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/requestinfo.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/requestinfo.d.ts
new file mode 100644
index 0000000..fec97c9
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/requestinfo.d.ts
@@ -0,0 +1,73 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { StorageError } from './error';
+import { Headers, Connection, ConnectionType } from './connection';
+/**
+ * Type for url params stored in RequestInfo.
+ */
+export interface UrlParams {
+    [name: string]: string | number;
+}
+/**
+ * A function that converts a server response to the API type expected by the
+ * SDK.
+ *
+ * @param I - the type of the backend's network response
+ * @param O - the output response type used by the rest of the SDK.
+ */
+export type RequestHandler<I extends ConnectionType, O> = (connection: Connection<I>, response: I) => O;
+/** A function to handle an error. */
+export type ErrorHandler = (connection: Connection<ConnectionType>, response: StorageError) => StorageError;
+/**
+ * Contains a fully specified request.
+ *
+ * @param I - the type of the backend's network response.
+ * @param O - the output response type used by the rest of the SDK.
+ */
+export declare class RequestInfo<I extends ConnectionType, O> {
+    url: string;
+    method: string;
+    /**
+     * Returns the value with which to resolve the request's promise. Only called
+     * if the request is successful. Throw from this function to reject the
+     * returned Request's promise with the thrown error.
+     * Note: The XhrIo passed to this function may be reused after this callback
+     * returns. Do not keep a reference to it in any way.
+     */
+    handler: RequestHandler<I, O>;
+    timeout: number;
+    urlParams: UrlParams;
+    headers: Headers;
+    body: Blob | string | Uint8Array | null;
+    errorHandler: ErrorHandler | null;
+    /**
+     * Called with the current number of bytes uploaded and total size (-1 if not
+     * computable) of the request body (i.e. used to report upload progress).
+     */
+    progressCallback: ((p1: number, p2: number) => void) | null;
+    successCodes: number[];
+    additionalRetryCodes: number[];
+    constructor(url: string, method: string, 
+    /**
+     * Returns the value with which to resolve the request's promise. Only called
+     * if the request is successful. Throw from this function to reject the
+     * returned Request's promise with the thrown error.
+     * Note: The XhrIo passed to this function may be reused after this callback
+     * returns. Do not keep a reference to it in any way.
+     */
+    handler: RequestHandler<I, O>, timeout: number);
+}
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/requests.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/requests.d.ts
new file mode 100644
index 0000000..a019496
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/requests.d.ts
@@ -0,0 +1,84 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Defines methods for interacting with the network.
+ */
+import { Metadata } from '../metadata';
+import { ListResult } from '../list';
+import { FbsBlob } from './blob';
+import { StorageError } from './error';
+import { Location } from './location';
+import { Mappings } from './metadata';
+import { RequestInfo } from './requestinfo';
+import { Connection, ConnectionType } from './connection';
+import { FirebaseStorageImpl } from '../service';
+/**
+ * Throws the UNKNOWN StorageError if cndn is false.
+ */
+export declare function handlerCheck(cndn: boolean): void;
+export declare function metadataHandler(service: FirebaseStorageImpl, mappings: Mappings): (p1: Connection<string>, p2: string) => Metadata;
+export declare function listHandler(service: FirebaseStorageImpl, bucket: string): (p1: Connection<string>, p2: string) => ListResult;
+export declare function downloadUrlHandler(service: FirebaseStorageImpl, mappings: Mappings): (p1: Connection<string>, p2: string) => string | null;
+export declare function sharedErrorHandler(location: Location): (p1: Connection<ConnectionType>, p2: StorageError) => StorageError;
+export declare function objectErrorHandler(location: Location): (p1: Connection<ConnectionType>, p2: StorageError) => StorageError;
+export declare function getMetadata(service: FirebaseStorageImpl, location: Location, mappings: Mappings): RequestInfo<string, Metadata>;
+export declare function list(service: FirebaseStorageImpl, location: Location, delimiter?: string, pageToken?: string | null, maxResults?: number | null): RequestInfo<string, ListResult>;
+export declare function getBytes<I extends ConnectionType>(service: FirebaseStorageImpl, location: Location, maxDownloadSizeBytes?: number): RequestInfo<I, I>;
+export declare function getDownloadUrl(service: FirebaseStorageImpl, location: Location, mappings: Mappings): RequestInfo<string, string | null>;
+export declare function updateMetadata(service: FirebaseStorageImpl, location: Location, metadata: Partial<Metadata>, mappings: Mappings): RequestInfo<string, Metadata>;
+export declare function deleteObject(service: FirebaseStorageImpl, location: Location): RequestInfo<string, void>;
+export declare function determineContentType_(metadata: Metadata | null, blob: FbsBlob | null): string;
+export declare function metadataForUpload_(location: Location, blob: FbsBlob, metadata?: Metadata | null): Metadata;
+/**
+ * Prepare RequestInfo for uploads as Content-Type: multipart.
+ */
+export declare function multipartUpload(service: FirebaseStorageImpl, location: Location, mappings: Mappings, blob: FbsBlob, metadata?: Metadata | null): RequestInfo<string, Metadata>;
+/**
+ * @param current The number of bytes that have been uploaded so far.
+ * @param total The total number of bytes in the upload.
+ * @param opt_finalized True if the server has finished the upload.
+ * @param opt_metadata The upload metadata, should
+ *     only be passed if opt_finalized is true.
+ */
+export declare class ResumableUploadStatus {
+    current: number;
+    total: number;
+    finalized: boolean;
+    metadata: Metadata | null;
+    constructor(current: number, total: number, finalized?: boolean, metadata?: Metadata | null);
+}
+export declare function checkResumeHeader_(xhr: Connection<string>, allowed?: string[]): string;
+export declare function createResumableUpload(service: FirebaseStorageImpl, location: Location, mappings: Mappings, blob: FbsBlob, metadata?: Metadata | null): RequestInfo<string, string>;
+/**
+ * @param url From a call to fbs.requests.createResumableUpload.
+ */
+export declare function getResumableUploadStatus(service: FirebaseStorageImpl, location: Location, url: string, blob: FbsBlob): RequestInfo<string, ResumableUploadStatus>;
+/**
+ * Any uploads via the resumable upload API must transfer a number of bytes
+ * that is a multiple of this number.
+ */
+export declare const RESUMABLE_UPLOAD_CHUNK_SIZE: number;
+/**
+ * @param url From a call to fbs.requests.createResumableUpload.
+ * @param chunkSize Number of bytes to upload.
+ * @param status The previous status.
+ *     If not passed or null, we start from the beginning.
+ * @throws fbs.Error If the upload is already complete, the passed in status
+ *     has a final size inconsistent with the blob, or the blob cannot be sliced
+ *     for upload.
+ */
+export declare function continueResumableUpload(location: Location, service: FirebaseStorageImpl, url: string, blob: FbsBlob, chunkSize: number, mappings: Mappings, status?: ResumableUploadStatus | null, progressCallback?: ((p1: number, p2: number) => void) | null): RequestInfo<string, ResumableUploadStatus>;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/string.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/string.d.ts
new file mode 100644
index 0000000..0549cf9
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/string.d.ts
@@ -0,0 +1,73 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * An enumeration of the possible string formats for upload.
+ * @public
+ */
+export type StringFormat = (typeof StringFormat)[keyof typeof StringFormat];
+/**
+ * An enumeration of the possible string formats for upload.
+ * @public
+ */
+export declare const StringFormat: {
+    /**
+     * Indicates the string should be interpreted "raw", that is, as normal text.
+     * The string will be interpreted as UTF-16, then uploaded as a UTF-8 byte
+     * sequence.
+     * Example: The string 'Hello! \\ud83d\\ude0a' becomes the byte sequence
+     * 48 65 6c 6c 6f 21 20 f0 9f 98 8a
+     */
+    readonly RAW: "raw";
+    /**
+     * Indicates the string should be interpreted as base64-encoded data.
+     * Padding characters (trailing '='s) are optional.
+     * Example: The string 'rWmO++E6t7/rlw==' becomes the byte sequence
+     * ad 69 8e fb e1 3a b7 bf eb 97
+     */
+    readonly BASE64: "base64";
+    /**
+     * Indicates the string should be interpreted as base64url-encoded data.
+     * Padding characters (trailing '='s) are optional.
+     * Example: The string 'rWmO--E6t7_rlw==' becomes the byte sequence
+     * ad 69 8e fb e1 3a b7 bf eb 97
+     */
+    readonly BASE64URL: "base64url";
+    /**
+     * Indicates the string is a data URL, such as one obtained from
+     * canvas.toDataURL().
+     * Example: the string 'data:application/octet-stream;base64,aaaa'
+     * becomes the byte sequence
+     * 69 a6 9a
+     * (the content-type "application/octet-stream" is also applied, but can
+     * be overridden in the metadata object).
+     */
+    readonly DATA_URL: "data_url";
+};
+export declare class StringData {
+    data: Uint8Array;
+    contentType: string | null;
+    constructor(data: Uint8Array, contentType?: string | null);
+}
+/**
+ * @internal
+ */
+export declare function dataFromString(format: StringFormat, stringData: string): StringData;
+export declare function utf8Bytes_(value: string): Uint8Array;
+export declare function percentEncodedBytes_(value: string): Uint8Array;
+export declare function base64Bytes_(format: StringFormat, value: string): Uint8Array;
+export declare function dataURLBytes_(dataUrl: string): Uint8Array;
+export declare function dataURLContentType_(dataUrl: string): string | null;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/taskenums.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/taskenums.d.ts
new file mode 100644
index 0000000..6c6d880
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/taskenums.d.ts
@@ -0,0 +1,77 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Enumerations used for upload tasks.
+ */
+/**
+ * An event that is triggered on a task.
+ * @internal
+ */
+export type TaskEvent = string;
+/**
+ * An event that is triggered on a task.
+ * @internal
+ */
+export declare const TaskEvent: {
+    /**
+     * For this event,
+     * <ul>
+     *   <li>The `next` function is triggered on progress updates and when the
+     *       task is paused/resumed with an `UploadTaskSnapshot` as the first
+     *       argument.</li>
+     *   <li>The `error` function is triggered if the upload is canceled or fails
+     *       for another reason.</li>
+     *   <li>The `complete` function is triggered if the upload completes
+     *       successfully.</li>
+     * </ul>
+     */
+    STATE_CHANGED: string;
+};
+/**
+ * Internal enum for task state.
+ */
+export declare const enum InternalTaskState {
+    RUNNING = "running",
+    PAUSING = "pausing",
+    PAUSED = "paused",
+    SUCCESS = "success",
+    CANCELING = "canceling",
+    CANCELED = "canceled",
+    ERROR = "error"
+}
+/**
+ * Represents the current state of a running upload.
+ * @internal
+ */
+export type TaskState = (typeof TaskState)[keyof typeof TaskState];
+/**
+ * Represents the current state of a running upload.
+ * @internal
+ */
+export declare const TaskState: {
+    /** The task is currently transferring data. */
+    readonly RUNNING: "running";
+    /** The task was paused by the user. */
+    readonly PAUSED: "paused";
+    /** The task completed successfully. */
+    readonly SUCCESS: "success";
+    /** The task was canceled. */
+    readonly CANCELED: "canceled";
+    /** The task failed with an error. */
+    readonly ERROR: "error";
+};
+export declare function taskStateFromInternalTaskState(state: InternalTaskState): TaskState;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/type.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/type.d.ts
new file mode 100644
index 0000000..ed70cc9
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/type.d.ts
@@ -0,0 +1,23 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+export declare function isJustDef<T>(p: T | null | undefined): p is T | null;
+export declare function isFunction(p: unknown): p is Function;
+export declare function isNonArrayObject(p: unknown): boolean;
+export declare function isString(p: unknown): p is string;
+export declare function isNativeBlob(p: unknown): p is Blob;
+export declare function isNativeBlobDefined(): boolean;
+export declare function validateNumber(argument: string, minValue: number, maxValue: number, value: number): void;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/url.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/url.d.ts
new file mode 100644
index 0000000..caf7f3c
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/url.d.ts
@@ -0,0 +1,22 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Functions to create and manipulate URLs for the server API.
+ */
+import { UrlParams } from './requestinfo';
+export declare function makeUrl(urlPart: string, host: string, protocol: string): string;
+export declare function makeQueryString(params: UrlParams): string;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/utils.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/utils.d.ts
new file mode 100644
index 0000000..b91f9dc
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/implementation/utils.d.ts
@@ -0,0 +1,23 @@
+/**
+ * @license
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Checks the status code to see if the action should be retried.
+ *
+ * @param status Current HTTP status code returned by server.
+ * @param additionalRetryCodes additional retry codes to check against
+ */
+export declare function isRetryStatusCode(status: number, additionalRetryCodes: number[]): boolean;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/index.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/index.d.ts
new file mode 100644
index 0000000..62b1e67
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/index.d.ts
@@ -0,0 +1,7 @@
+/**
+ * Cloud Storage for Firebase
+ *
+ * @packageDocumentation
+ */
+export * from './api';
+export * from './api.browser';
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/index.node.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/index.node.d.ts
new file mode 100644
index 0000000..2f613cd
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/index.node.d.ts
@@ -0,0 +1,7 @@
+/**
+ * Cloud Storage for Firebase
+ *
+ * @packageDocumentation
+ */
+export * from './api';
+export * from './api.node';
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/list.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/list.d.ts
new file mode 100644
index 0000000..1f015e5
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/list.d.ts
@@ -0,0 +1,41 @@
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { Reference } from './reference';
+/**
+ * Result returned by `list()`.
+ * @public
+ */
+export interface ListResult {
+    /**
+     * References to prefixes (sub-folders). You can call list() on them to
+     * get its contents.
+     *
+     * Folders are implicit based on '/' in the object paths.
+     * For example, if a bucket has two objects '/a/b/1' and '/a/b/2', list('/a')
+     * will return '/a/b' as a prefix.
+     */
+    prefixes: Reference[];
+    /**
+     * Objects in this directory.
+     * You can call getMetadata() and getDownloadUrl() on them.
+     */
+    items: Reference[];
+    /**
+     * If set, there might be more results for this list. Use this token to resume the list.
+     */
+    nextPageToken?: string;
+}
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/metadata.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/metadata.d.ts
new file mode 100644
index 0000000..48fa64f
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/metadata.d.ts
@@ -0,0 +1,27 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { FullMetadata } from './public-types';
+/**
+ * @fileoverview Documentation for the metadata format.
+ */
+/**
+ * The full set of object metadata, including read-only properties.
+ */
+interface Metadata extends FullMetadata {
+    [prop: string]: unknown;
+}
+export { Metadata };
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/platform/base64.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/platform/base64.d.ts
new file mode 100644
index 0000000..7dac903
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/platform/base64.d.ts
@@ -0,0 +1,20 @@
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/** Converts a Base64 encoded string to a binary string. */
+export declare function decodeBase64(encoded: string): string;
+/** Converts a Uint8Array to a string. */
+export declare function decodeUint8Array(data: Uint8Array): string;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/platform/browser/base64.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/platform/browser/base64.d.ts
new file mode 100644
index 0000000..23c84f2
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/platform/browser/base64.d.ts
@@ -0,0 +1,19 @@
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/** Converts a Base64 encoded string to a binary string. */
+export declare function decodeBase64(encoded: string): string;
+export declare function decodeUint8Array(data: Uint8Array): string;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/platform/browser/connection.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/platform/browser/connection.d.ts
new file mode 100644
index 0000000..14415da
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/platform/browser/connection.d.ts
@@ -0,0 +1,55 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { Connection, ConnectionType, ErrorCode, Headers } from '../../implementation/connection';
+/**
+ * Network layer for browsers. We use this instead of goog.net.XhrIo because
+ * goog.net.XhrIo is hyuuuuge and doesn't work in React Native on Android.
+ */
+declare abstract class XhrConnection<T extends ConnectionType> implements Connection<T> {
+    protected xhr_: XMLHttpRequest;
+    private errorCode_;
+    private sendPromise_;
+    protected sent_: boolean;
+    constructor();
+    abstract initXhr(): void;
+    send(url: string, method: string, isUsingEmulator: boolean, body?: ArrayBufferView | Blob | string, headers?: Headers): Promise<void>;
+    getErrorCode(): ErrorCode;
+    getStatus(): number;
+    getResponse(): T;
+    getErrorText(): string;
+    /** Aborts the request. */
+    abort(): void;
+    getResponseHeader(header: string): string | null;
+    addUploadProgressListener(listener: (p1: ProgressEvent) => void): void;
+    removeUploadProgressListener(listener: (p1: ProgressEvent) => void): void;
+}
+export declare class XhrTextConnection extends XhrConnection<string> {
+    initXhr(): void;
+}
+export declare function newTextConnection(): Connection<string>;
+export declare class XhrBytesConnection extends XhrConnection<ArrayBuffer> {
+    private data_?;
+    initXhr(): void;
+}
+export declare function newBytesConnection(): Connection<ArrayBuffer>;
+export declare class XhrBlobConnection extends XhrConnection<Blob> {
+    initXhr(): void;
+}
+export declare function newBlobConnection(): Connection<Blob>;
+export declare function newStreamConnection(): Connection<ReadableStream>;
+export declare function injectTestConnection(factory: (() => Connection<string>) | null): void;
+export {};
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/platform/connection.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/platform/connection.d.ts
new file mode 100644
index 0000000..72ed64b
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/platform/connection.d.ts
@@ -0,0 +1,22 @@
+/**
+ * @license
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { Connection } from '../implementation/connection';
+export declare function injectTestConnection(factory: (() => Connection<string>) | null): void;
+export declare function newTextConnection(): Connection<string>;
+export declare function newBytesConnection(): Connection<ArrayBuffer>;
+export declare function newBlobConnection(): Connection<Blob>;
+export declare function newStreamConnection(): Connection<ReadableStream<Uint8Array>>;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/platform/node/base64.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/platform/node/base64.d.ts
new file mode 100644
index 0000000..23c84f2
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/platform/node/base64.d.ts
@@ -0,0 +1,19 @@
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/** Converts a Base64 encoded string to a binary string. */
+export declare function decodeBase64(encoded: string): string;
+export declare function decodeUint8Array(data: Uint8Array): string;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/platform/node/connection.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/platform/node/connection.d.ts
new file mode 100644
index 0000000..a4e71fa
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/platform/node/connection.d.ts
@@ -0,0 +1,58 @@
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { Connection, ConnectionType, ErrorCode } from '../../implementation/connection';
+/**
+ * Network layer that works in Node.
+ *
+ * This network implementation should not be used in browsers as it does not
+ * support progress updates.
+ */
+declare abstract class FetchConnection<T extends ConnectionType> implements Connection<T> {
+    protected errorCode_: ErrorCode;
+    protected statusCode_: number | undefined;
+    protected body_: ArrayBuffer | undefined;
+    protected errorText_: string;
+    protected headers_: Headers | undefined;
+    protected sent_: boolean;
+    constructor();
+    send(url: string, method: string, isUsingEmulator: boolean, body?: NodeJS.ArrayBufferView | Blob | string, headers?: Record<string, string>): Promise<void>;
+    getErrorCode(): ErrorCode;
+    getStatus(): number;
+    abstract getResponse(): T;
+    getErrorText(): string;
+    abort(): void;
+    getResponseHeader(header: string): string | null;
+    addUploadProgressListener(listener: (p1: ProgressEvent) => void): void;
+    removeUploadProgressListener(listener: (p1: ProgressEvent) => void): void;
+}
+export declare class FetchTextConnection extends FetchConnection<string> {
+    getResponse(): string;
+}
+export declare function newTextConnection(): Connection<string>;
+export declare class FetchBytesConnection extends FetchConnection<ArrayBuffer> {
+    getResponse(): ArrayBuffer;
+}
+export declare function newBytesConnection(): Connection<ArrayBuffer>;
+export declare class FetchStreamConnection extends FetchConnection<ReadableStream<Uint8Array>> {
+    private stream_;
+    send(url: string, method: string, isUsingEmulator: boolean, body?: NodeJS.ArrayBufferView | Blob | string, headers?: Record<string, string>): Promise<void>;
+    getResponse(): ReadableStream;
+}
+export declare function newStreamConnection(): Connection<ReadableStream<Uint8Array>>;
+export declare function newBlobConnection(): Connection<Blob>;
+export declare function injectTestConnection(factory: (() => Connection<string>) | null): void;
+export {};
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/public-types.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/public-types.d.ts
new file mode 100644
index 0000000..033bd3c
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/public-types.d.ts
@@ -0,0 +1,424 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { FirebaseApp, _FirebaseService } from '@firebase/app';
+import { CompleteFn, NextFn, Subscribe, Unsubscribe } from '@firebase/util';
+import { StorageError } from './implementation/error';
+/**
+ * A Firebase Storage instance.
+ * @public
+ */
+export interface FirebaseStorage extends _FirebaseService {
+    /**
+     * The {@link @firebase/app#FirebaseApp} associated with this `FirebaseStorage` instance.
+     */
+    readonly app: FirebaseApp;
+    /**
+     * The maximum time to retry uploads in milliseconds.
+     */
+    maxUploadRetryTime: number;
+    /**
+     * The maximum time to retry operations other than uploads or downloads in
+     * milliseconds.
+     */
+    maxOperationRetryTime: number;
+}
+/**
+ * Represents a reference to a Google Cloud Storage object. Developers can
+ * upload, download, and delete objects, as well as get/set object metadata.
+ * @public
+ */
+export interface StorageReference {
+    /**
+     * Returns a gs:// URL for this object in the form
+     *   `gs://<bucket>/<path>/<to>/<object>`
+     * @returns The gs:// URL.
+     */
+    toString(): string;
+    /**
+     * A reference to the root of this object's bucket.
+     */
+    root: StorageReference;
+    /**
+     * The name of the bucket containing this reference's object.
+     */
+    bucket: string;
+    /**
+     * The full path of this object.
+     */
+    fullPath: string;
+    /**
+     * The short name of this object, which is the last component of the full path.
+     * For example, if fullPath is 'full/path/image.png', name is 'image.png'.
+     */
+    name: string;
+    /**
+     * The {@link FirebaseStorage} instance associated with this reference.
+     */
+    storage: FirebaseStorage;
+    /**
+     * A reference pointing to the parent location of this reference, or null if
+     * this reference is the root.
+     */
+    parent: StorageReference | null;
+}
+/**
+ * The options `list()` accepts.
+ * @public
+ */
+export interface ListOptions {
+    /**
+     * If set, limits the total number of `prefixes` and `items` to return.
+     * The default and maximum maxResults is 1000.
+     */
+    maxResults?: number | null;
+    /**
+     * The `nextPageToken` from a previous call to `list()`. If provided,
+     * listing is resumed from the previous position.
+     */
+    pageToken?: string | null;
+}
+/**
+ * Result returned by list().
+ * @public
+ */
+export interface ListResult {
+    /**
+     * References to prefixes (sub-folders). You can call list() on them to
+     * get its contents.
+     *
+     * Folders are implicit based on '/' in the object paths.
+     * For example, if a bucket has two objects '/a/b/1' and '/a/b/2', list('/a')
+     * will return '/a/b' as a prefix.
+     */
+    prefixes: StorageReference[];
+    /**
+     * Objects in this directory.
+     * You can call getMetadata() and getDownloadUrl() on them.
+     */
+    items: StorageReference[];
+    /**
+     * If set, there might be more results for this list. Use this token to resume the list.
+     */
+    nextPageToken?: string;
+}
+/**
+ * Object metadata that can be set at any time.
+ * @public
+ */
+export interface SettableMetadata {
+    /**
+     * Served as the 'Cache-Control' header on object download.
+     */
+    cacheControl?: string | undefined;
+    /**
+     * Served as the 'Content-Disposition' header on object download.
+     */
+    contentDisposition?: string | undefined;
+    /**
+     * Served as the 'Content-Encoding' header on object download.
+     */
+    contentEncoding?: string | undefined;
+    /**
+     * Served as the 'Content-Language' header on object download.
+     */
+    contentLanguage?: string | undefined;
+    /**
+     * Served as the 'Content-Type' header on object download.
+     */
+    contentType?: string | undefined;
+    /**
+     * Additional user-defined custom metadata.
+     */
+    customMetadata?: {
+        [key: string]: string;
+    } | undefined;
+}
+/**
+ * Object metadata that can be set at upload.
+ * @public
+ */
+export interface UploadMetadata extends SettableMetadata {
+    /**
+     * A Base64-encoded MD5 hash of the object being uploaded.
+     */
+    md5Hash?: string | undefined;
+}
+/**
+ * The full set of object metadata, including read-only properties.
+ * @public
+ */
+export interface FullMetadata extends UploadMetadata {
+    /**
+     * The bucket this object is contained in.
+     */
+    bucket: string;
+    /**
+     * The full path of this object.
+     */
+    fullPath: string;
+    /**
+     * The object's generation.
+     * {@link https://cloud.google.com/storage/docs/metadata#generation-number}
+     */
+    generation: string;
+    /**
+     * The object's metageneration.
+     * {@link https://cloud.google.com/storage/docs/metadata#generation-number}
+     */
+    metageneration: string;
+    /**
+     * The short name of this object, which is the last component of the full path.
+     * For example, if fullPath is 'full/path/image.png', name is 'image.png'.
+     */
+    name: string;
+    /**
+     * The size of this object, in bytes.
+     */
+    size: number;
+    /**
+     * A date string representing when this object was created.
+     */
+    timeCreated: string;
+    /**
+     * A date string representing when this object was last updated.
+     */
+    updated: string;
+    /**
+     * Tokens to allow access to the download URL.
+     */
+    downloadTokens: string[] | undefined;
+    /**
+     * `StorageReference` associated with this upload.
+     */
+    ref?: StorageReference | undefined;
+}
+/**
+ * An event that is triggered on a task.
+ * @public
+ */
+export type TaskEvent = 'state_changed';
+/**
+ * Represents the current state of a running upload.
+ * @public
+ */
+export type TaskState = 'running' | 'paused' | 'success' | 'canceled' | 'error';
+/**
+ * A stream observer for Firebase Storage.
+ * @public
+ */
+export interface StorageObserver<T> {
+    next?: NextFn<T> | null;
+    error?: (error: StorageError) => void | null;
+    complete?: CompleteFn | null;
+}
+/**
+ * Represents the process of uploading an object. Allows you to monitor and
+ * manage the upload.
+ * @public
+ */
+export interface UploadTask {
+    /**
+     * Cancels a running task. Has no effect on a complete or failed task.
+     * @returns True if the cancel had an effect.
+     */
+    cancel(): boolean;
+    /**
+     * Equivalent to calling `then(null, onRejected)`.
+     */
+    catch(onRejected: (error: StorageError) => unknown): Promise<unknown>;
+    /**
+     * Listens for events on this task.
+     *
+     * Events have three callback functions (referred to as `next`, `error`, and
+     * `complete`).
+     *
+     * If only the event is passed, a function that can be used to register the
+     * callbacks is returned. Otherwise, the callbacks are passed after the event.
+     *
+     * Callbacks can be passed either as three separate arguments <em>or</em> as the
+     * `next`, `error`, and `complete` properties of an object. Any of the three
+     * callbacks is optional, as long as at least one is specified. In addition,
+     * when you add your callbacks, you get a function back. You can call this
+     * function to unregister the associated callbacks.
+     *
+     * @example **Pass callbacks separately or in an object.**
+     * ```javascript
+     * var next = function(snapshot) {};
+     * var error = function(error) {};
+     * var complete = function() {};
+     *
+     * // The first example.
+     * uploadTask.on(
+     *     firebase.storage.TaskEvent.STATE_CHANGED,
+     *     next,
+     *     error,
+     *     complete);
+     *
+     * // This is equivalent to the first example.
+     * uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED, {
+     *   'next': next,
+     *   'error': error,
+     *   'complete': complete
+     * });
+     *
+     * // This is equivalent to the first example.
+     * var subscribe = uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED);
+     * subscribe(next, error, complete);
+     *
+     * // This is equivalent to the first example.
+     * var subscribe = uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED);
+     * subscribe({
+     *   'next': next,
+     *   'error': error,
+     *   'complete': complete
+     * });
+     * ```
+     *
+     * @example **Any callback is optional.**
+     * ```javascript
+     * // Just listening for completion, this is legal.
+     * uploadTask.on(
+     *     firebase.storage.TaskEvent.STATE_CHANGED,
+     *     null,
+     *     null,
+     *     function() {
+     *       console.log('upload complete!');
+     *     });
+     *
+     * // Just listening for progress/state changes, this is legal.
+     * uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED, function(snapshot) {
+     *   var percent = snapshot.bytesTransferred / snapshot.totalBytes * 100;
+     *   console.log(percent + "% done");
+     * });
+     *
+     * // This is also legal.
+     * uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED, {
+     *   'complete': function() {
+     *     console.log('upload complete!');
+     *   }
+     * });
+     * ```
+     *
+     * @example **Use the returned function to remove callbacks.**
+     * ```javascript
+     * var unsubscribe = uploadTask.on(
+     *     firebase.storage.TaskEvent.STATE_CHANGED,
+     *     function(snapshot) {
+     *       var percent = snapshot.bytesTransferred / snapshot.totalBytes * 100;
+     *       console.log(percent + "% done");
+     *       // Stop after receiving one update.
+     *       unsubscribe();
+     *     });
+     *
+     * // This code is equivalent to the above.
+     * var handle = uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED);
+     * unsubscribe = handle(function(snapshot) {
+     *   var percent = snapshot.bytesTransferred / snapshot.totalBytes * 100;
+     *   console.log(percent + "% done");
+     *   // Stop after receiving one update.
+     *   unsubscribe();
+     * });
+     * ```
+     *
+     * @param event - The type of event to listen for.
+     * @param nextOrObserver -
+     *     The `next` function, which gets called for each item in
+     *     the event stream, or an observer object with some or all of these three
+     *     properties (`next`, `error`, `complete`).
+     * @param error - A function that gets called with a `StorageError`
+     *     if the event stream ends due to an error.
+     * @param completed - A function that gets called if the
+     *     event stream ends normally.
+     * @returns
+     *     If only the event argument is passed, returns a function you can use to
+     *     add callbacks (see the examples above). If more than just the event
+     *     argument is passed, returns a function you can call to unregister the
+     *     callbacks.
+     */
+    on(event: TaskEvent, nextOrObserver?: StorageObserver<UploadTaskSnapshot> | null | ((snapshot: UploadTaskSnapshot) => unknown), error?: ((a: StorageError) => unknown) | null, complete?: Unsubscribe | null): Unsubscribe | Subscribe<UploadTaskSnapshot>;
+    /**
+     * Pauses a currently running task. Has no effect on a paused or failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    pause(): boolean;
+    /**
+     * Resumes a paused task. Has no effect on a currently running or failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    resume(): boolean;
+    /**
+     * A snapshot of the current task state.
+     */
+    snapshot: UploadTaskSnapshot;
+    /**
+     * This object behaves like a Promise, and resolves with its snapshot data
+     * when the upload completes.
+     * @param onFulfilled - The fulfillment callback. Promise chaining works as normal.
+     * @param onRejected - The rejection callback.
+     */
+    then(onFulfilled?: ((snapshot: UploadTaskSnapshot) => unknown) | null, onRejected?: ((error: StorageError) => unknown) | null): Promise<unknown>;
+}
+/**
+ * Holds data about the current state of the upload task.
+ * @public
+ */
+export interface UploadTaskSnapshot {
+    /**
+     * The number of bytes that have been successfully uploaded so far.
+     */
+    bytesTransferred: number;
+    /**
+     * Before the upload completes, contains the metadata sent to the server.
+     * After the upload completes, contains the metadata sent back from the server.
+     */
+    metadata: FullMetadata;
+    /**
+     * The reference that spawned this snapshot's upload task.
+     */
+    ref: StorageReference;
+    /**
+     * The current state of the task.
+     */
+    state: TaskState;
+    /**
+     * The task of which this is a snapshot.
+     */
+    task: UploadTask;
+    /**
+     * The total number of bytes to be uploaded.
+     */
+    totalBytes: number;
+}
+/**
+ * Result returned from a non-resumable upload.
+ * @public
+ */
+export interface UploadResult {
+    /**
+     * Contains the metadata sent back from the server.
+     */
+    readonly metadata: FullMetadata;
+    /**
+     * The reference that spawned this upload.
+     */
+    readonly ref: StorageReference;
+}
+declare module '@firebase/component' {
+    interface NameServiceMapping {
+        'storage': FirebaseStorage;
+    }
+}
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/reference.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/reference.d.ts
new file mode 100644
index 0000000..68e93d7
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/reference.d.ts
@@ -0,0 +1,208 @@
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { Location } from './implementation/location';
+import { ListOptions, UploadResult } from './public-types';
+import { StringFormat } from './implementation/string';
+import { Metadata } from './metadata';
+import { FirebaseStorageImpl } from './service';
+import { ListResult } from './list';
+import { UploadTask } from './task';
+/**
+ * Provides methods to interact with a bucket in the Firebase Storage service.
+ * @internal
+ * @param _location - An fbs.location, or the URL at
+ *     which to base this object, in one of the following forms:
+ *         gs://<bucket>/<object-path>
+ *         http[s]://firebasestorage.googleapis.com/
+ *                     <api-version>/b/<bucket>/o/<object-path>
+ *     Any query or fragment strings will be ignored in the http[s]
+ *     format. If no value is passed, the storage object will use a URL based on
+ *     the project ID of the base firebase.App instance.
+ */
+export declare class Reference {
+    private _service;
+    _location: Location;
+    constructor(_service: FirebaseStorageImpl, location: string | Location);
+    /**
+     * Returns the URL for the bucket and path this object references,
+     *     in the form gs://<bucket>/<object-path>
+     * @override
+     */
+    toString(): string;
+    protected _newRef(service: FirebaseStorageImpl, location: Location): Reference;
+    /**
+     * A reference to the root of this object's bucket.
+     */
+    get root(): Reference;
+    /**
+     * The name of the bucket containing this reference's object.
+     */
+    get bucket(): string;
+    /**
+     * The full path of this object.
+     */
+    get fullPath(): string;
+    /**
+     * The short name of this object, which is the last component of the full path.
+     * For example, if fullPath is 'full/path/image.png', name is 'image.png'.
+     */
+    get name(): string;
+    /**
+     * The `StorageService` instance this `StorageReference` is associated with.
+     */
+    get storage(): FirebaseStorageImpl;
+    /**
+     * A `StorageReference` pointing to the parent location of this `StorageReference`, or null if
+     * this reference is the root.
+     */
+    get parent(): Reference | null;
+    /**
+     * Utility function to throw an error in methods that do not accept a root reference.
+     */
+    _throwIfRoot(name: string): void;
+}
+/**
+ * Download the bytes at the object's location.
+ * @returns A Promise containing the downloaded bytes.
+ */
+export declare function getBytesInternal(ref: Reference, maxDownloadSizeBytes?: number): Promise<ArrayBuffer>;
+/**
+ * Download the bytes at the object's location.
+ * @returns A Promise containing the downloaded blob.
+ */
+export declare function getBlobInternal(ref: Reference, maxDownloadSizeBytes?: number): Promise<Blob>;
+/** Stream the bytes at the object's location. */
+export declare function getStreamInternal(ref: Reference, maxDownloadSizeBytes?: number): ReadableStream;
+/**
+ * Uploads data to this object's location.
+ * The upload is not resumable.
+ *
+ * @param ref - StorageReference where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the newly uploaded data.
+ * @returns A Promise containing an UploadResult
+ */
+export declare function uploadBytes(ref: Reference, data: Blob | Uint8Array | ArrayBuffer, metadata?: Metadata): Promise<UploadResult>;
+/**
+ * Uploads data to this object's location.
+ * The upload can be paused and resumed, and exposes progress updates.
+ * @public
+ * @param ref - StorageReference where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the newly uploaded data.
+ * @returns An UploadTask
+ */
+export declare function uploadBytesResumable(ref: Reference, data: Blob | Uint8Array | ArrayBuffer, metadata?: Metadata): UploadTask;
+/**
+ * Uploads a string to this object's location.
+ * The upload is not resumable.
+ * @public
+ * @param ref - StorageReference where string should be uploaded.
+ * @param value - The string to upload.
+ * @param format - The format of the string to upload.
+ * @param metadata - Metadata for the newly uploaded string.
+ * @returns A Promise containing an UploadResult
+ */
+export declare function uploadString(ref: Reference, value: string, format?: StringFormat, metadata?: Metadata): Promise<UploadResult>;
+/**
+ * List all items (files) and prefixes (folders) under this storage reference.
+ *
+ * This is a helper method for calling list() repeatedly until there are
+ * no more results. The default pagination size is 1000.
+ *
+ * Note: The results may not be consistent if objects are changed while this
+ * operation is running.
+ *
+ * Warning: listAll may potentially consume too many resources if there are
+ * too many results.
+ * @public
+ * @param ref - StorageReference to get list from.
+ *
+ * @returns A Promise that resolves with all the items and prefixes under
+ *      the current storage reference. `prefixes` contains references to
+ *      sub-directories and `items` contains references to objects in this
+ *      folder. `nextPageToken` is never returned.
+ */
+export declare function listAll(ref: Reference): Promise<ListResult>;
+/**
+ * List items (files) and prefixes (folders) under this storage reference.
+ *
+ * List API is only available for Firebase Rules Version 2.
+ *
+ * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'
+ * delimited folder structure.
+ * Refer to GCS's List API if you want to learn more.
+ *
+ * To adhere to Firebase Rules's Semantics, Firebase Storage does not
+ * support objects whose paths end with "/" or contain two consecutive
+ * "/"s. Firebase Storage List API will filter these unsupported objects.
+ * list() may fail if there are too many unsupported objects in the bucket.
+ * @public
+ *
+ * @param ref - StorageReference to get list from.
+ * @param options - See ListOptions for details.
+ * @returns A Promise that resolves with the items and prefixes.
+ *      `prefixes` contains references to sub-folders and `items`
+ *      contains references to objects in this folder. `nextPageToken`
+ *      can be used to get the rest of the results.
+ */
+export declare function list(ref: Reference, options?: ListOptions | null): Promise<ListResult>;
+/**
+ * A `Promise` that resolves with the metadata for this object. If this
+ * object doesn't exist or metadata cannot be retrieved, the promise is
+ * rejected.
+ * @public
+ * @param ref - StorageReference to get metadata from.
+ */
+export declare function getMetadata(ref: Reference): Promise<Metadata>;
+/**
+ * Updates the metadata for this object.
+ * @public
+ * @param ref - StorageReference to update metadata for.
+ * @param metadata - The new metadata for the object.
+ *     Only values that have been explicitly set will be changed. Explicitly
+ *     setting a value to null will remove the metadata.
+ * @returns A `Promise` that resolves
+ *     with the new metadata for this object.
+ *     See `firebaseStorage.Reference.prototype.getMetadata`
+ */
+export declare function updateMetadata(ref: Reference, metadata: Partial<Metadata>): Promise<Metadata>;
+/**
+ * Returns the download URL for the given Reference.
+ * @public
+ * @returns A `Promise` that resolves with the download
+ *     URL for this object.
+ */
+export declare function getDownloadURL(ref: Reference): Promise<string>;
+/**
+ * Deletes the object at this location.
+ * @public
+ * @param ref - StorageReference for object to delete.
+ * @returns A `Promise` that resolves if the deletion succeeds.
+ */
+export declare function deleteObject(ref: Reference): Promise<void>;
+/**
+ * Returns reference for object obtained by appending `childPath` to `ref`.
+ *
+ * @param ref - StorageReference to get child of.
+ * @param childPath - Child path from provided ref.
+ * @returns A reference to the object obtained by
+ * appending childPath, removing any duplicate, beginning, or trailing
+ * slashes.
+ *
+ */
+export declare function _getChild(ref: Reference, childPath: string): Reference;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/service.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/service.d.ts
new file mode 100644
index 0000000..5dd6bb0
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/service.d.ts
@@ -0,0 +1,131 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { Location } from './implementation/location';
+import { Request } from './implementation/request';
+import { RequestInfo } from './implementation/requestinfo';
+import { Reference } from './reference';
+import { Provider } from '@firebase/component';
+import { FirebaseAuthInternalName } from '@firebase/auth-interop-types';
+import { AppCheckInternalComponentName } from '@firebase/app-check-interop-types';
+import { FirebaseApp } from '@firebase/app';
+import { FirebaseStorage } from './public-types';
+import { EmulatorMockTokenOptions } from '@firebase/util';
+import { Connection, ConnectionType } from './implementation/connection';
+export declare function isUrl(path?: string): boolean;
+/**
+ * Returns a storage Reference for the given url.
+ * @param storage - `Storage` instance.
+ * @param url - URL. If empty, returns root reference.
+ * @public
+ */
+export declare function ref(storage: FirebaseStorageImpl, url?: string): Reference;
+/**
+ * Returns a storage Reference for the given path in the
+ * default bucket.
+ * @param storageOrRef - `Storage` service or storage `Reference`.
+ * @param pathOrUrlStorage - path. If empty, returns root reference (if Storage
+ * instance provided) or returns same reference (if Reference provided).
+ * @public
+ */
+export declare function ref(storageOrRef: FirebaseStorageImpl | Reference, path?: string): Reference;
+export declare function connectStorageEmulator(storage: FirebaseStorageImpl, host: string, port: number, options?: {
+    mockUserToken?: EmulatorMockTokenOptions | string;
+}): void;
+/**
+ * A service that provides Firebase Storage Reference instances.
+ * @param opt_url - gs:// url to a custom Storage Bucket
+ *
+ * @internal
+ */
+export declare class FirebaseStorageImpl implements FirebaseStorage {
+    /**
+     * FirebaseApp associated with this StorageService instance.
+     */
+    readonly app: FirebaseApp;
+    readonly _authProvider: Provider<FirebaseAuthInternalName>;
+    /**
+     * @internal
+     */
+    readonly _appCheckProvider: Provider<AppCheckInternalComponentName>;
+    /**
+     * @internal
+     */
+    readonly _url?: string | undefined;
+    readonly _firebaseVersion?: string | undefined;
+    _isUsingEmulator: boolean;
+    _bucket: Location | null;
+    /**
+     * This string can be in the formats:
+     * - host
+     * - host:port
+     */
+    private _host;
+    _protocol: string;
+    protected readonly _appId: string | null;
+    private readonly _requests;
+    private _deleted;
+    private _maxOperationRetryTime;
+    private _maxUploadRetryTime;
+    _overrideAuthToken?: string;
+    constructor(
+    /**
+     * FirebaseApp associated with this StorageService instance.
+     */
+    app: FirebaseApp, _authProvider: Provider<FirebaseAuthInternalName>, 
+    /**
+     * @internal
+     */
+    _appCheckProvider: Provider<AppCheckInternalComponentName>, 
+    /**
+     * @internal
+     */
+    _url?: string | undefined, _firebaseVersion?: string | undefined, _isUsingEmulator?: boolean);
+    /**
+     * The host string for this service, in the form of `host` or
+     * `host:port`.
+     */
+    get host(): string;
+    set host(host: string);
+    /**
+     * The maximum time to retry uploads in milliseconds.
+     */
+    get maxUploadRetryTime(): number;
+    set maxUploadRetryTime(time: number);
+    /**
+     * The maximum time to retry operations other than uploads or downloads in
+     * milliseconds.
+     */
+    get maxOperationRetryTime(): number;
+    set maxOperationRetryTime(time: number);
+    _getAuthToken(): Promise<string | null>;
+    _getAppCheckToken(): Promise<string | null>;
+    /**
+     * Stop running requests and prevent more from being created.
+     */
+    _delete(): Promise<void>;
+    /**
+     * Returns a new firebaseStorage.Reference object referencing this StorageService
+     * at the given Location.
+     */
+    _makeStorageReference(loc: Location): Reference;
+    /**
+     * @param requestInfo - HTTP RequestInfo object
+     * @param authToken - Firebase auth token
+     */
+    _makeRequest<I extends ConnectionType, O>(requestInfo: RequestInfo<I, O>, requestFactory: () => Connection<I>, authToken: string | null, appCheckToken: string | null, retry?: boolean): Request<O>;
+    makeRequestWithTokens<I extends ConnectionType, O>(requestInfo: RequestInfo<I, O>, requestFactory: () => Connection<I>): Promise<O>;
+}
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/task.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/task.d.ts
new file mode 100644
index 0000000..19afdfd
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/src/task.d.ts
@@ -0,0 +1,148 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Defines types for interacting with blob transfer tasks.
+ */
+import { FbsBlob } from './implementation/blob';
+import { StorageError } from './implementation/error';
+import { InternalTaskState, TaskEvent } from './implementation/taskenums';
+import { Metadata } from './metadata';
+import { Subscribe, Unsubscribe } from './implementation/observer';
+import { UploadTaskSnapshot, StorageObserver } from './public-types';
+import { Reference } from './reference';
+import { CompleteFn } from '@firebase/util';
+/**
+ * Represents a blob being uploaded. Can be used to pause/resume/cancel the
+ * upload and manage callbacks for various events.
+ * @internal
+ */
+export declare class UploadTask {
+    private _ref;
+    /**
+     * The data to be uploaded.
+     */
+    _blob: FbsBlob;
+    /**
+     * Metadata related to the upload.
+     */
+    _metadata: Metadata | null;
+    private _mappings;
+    /**
+     * Number of bytes transferred so far.
+     */
+    _transferred: number;
+    private _needToFetchStatus;
+    private _needToFetchMetadata;
+    private _observers;
+    private _resumable;
+    /**
+     * Upload state.
+     */
+    _state: InternalTaskState;
+    private _error?;
+    private _uploadUrl?;
+    private _request?;
+    private _chunkMultiplier;
+    private _errorHandler;
+    private _metadataErrorHandler;
+    private _resolve?;
+    private _reject?;
+    private pendingTimeout?;
+    private _promise;
+    private sleepTime;
+    private maxSleepTime;
+    isExponentialBackoffExpired(): boolean;
+    /**
+     * @param ref - The firebaseStorage.Reference object this task came
+     *     from, untyped to avoid cyclic dependencies.
+     * @param blob - The blob to upload.
+     */
+    constructor(ref: Reference, blob: FbsBlob, metadata?: Metadata | null);
+    private _makeProgressCallback;
+    private _shouldDoResumable;
+    private _start;
+    private _resolveToken;
+    private _createResumable;
+    private _fetchStatus;
+    private _continueUpload;
+    private _increaseMultiplier;
+    private _fetchMetadata;
+    private _oneShotUpload;
+    private _updateProgress;
+    private _transition;
+    private completeTransitions_;
+    /**
+     * A snapshot of the current task state.
+     */
+    get snapshot(): UploadTaskSnapshot;
+    /**
+     * Adds a callback for an event.
+     * @param type - The type of event to listen for.
+     * @param nextOrObserver -
+     *     The `next` function, which gets called for each item in
+     *     the event stream, or an observer object with some or all of these three
+     *     properties (`next`, `error`, `complete`).
+     * @param error - A function that gets called with a `StorageError`
+     *     if the event stream ends due to an error.
+     * @param completed - A function that gets called if the
+     *     event stream ends normally.
+     * @returns
+     *     If only the event argument is passed, returns a function you can use to
+     *     add callbacks (see the examples above). If more than just the event
+     *     argument is passed, returns a function you can call to unregister the
+     *     callbacks.
+     */
+    on(type: TaskEvent, nextOrObserver?: StorageObserver<UploadTaskSnapshot> | null | ((snapshot: UploadTaskSnapshot) => unknown), error?: ((a: StorageError) => unknown) | null, completed?: CompleteFn | null): Unsubscribe | Subscribe<UploadTaskSnapshot>;
+    /**
+     * This object behaves like a Promise, and resolves with its snapshot data
+     * when the upload completes.
+     * @param onFulfilled - The fulfillment callback. Promise chaining works as normal.
+     * @param onRejected - The rejection callback.
+     */
+    then<U>(onFulfilled?: ((value: UploadTaskSnapshot) => U | Promise<U>) | null, onRejected?: ((error: StorageError) => U | Promise<U>) | null): Promise<U>;
+    /**
+     * Equivalent to calling `then(null, onRejected)`.
+     */
+    catch<T>(onRejected: (p1: StorageError) => T | Promise<T>): Promise<T>;
+    /**
+     * Adds the given observer.
+     */
+    private _addObserver;
+    /**
+     * Removes the given observer.
+     */
+    private _removeObserver;
+    private _notifyObservers;
+    private _finishPromise;
+    private _notifyObserver;
+    /**
+     * Resumes a paused task. Has no effect on a currently running or failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    resume(): boolean;
+    /**
+     * Pauses a currently running task. Has no effect on a paused or failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    pause(): boolean;
+    /**
+     * Cancels a currently running or paused task. Has no effect on a complete or
+     * failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    cancel(): boolean;
+}
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/test/unit/connection.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/test/unit/connection.d.ts
new file mode 100644
index 0000000..47fe45b
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/test/unit/connection.d.ts
@@ -0,0 +1,47 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { ErrorCode, Headers, Connection } from '../../src/implementation/connection';
+export type SendHook = (connection: TestingConnection, url: string, method: string, body?: ArrayBufferView | Blob | string | null, headers?: Headers) => void;
+export declare enum State {
+    START = 0,
+    SENT = 1,
+    DONE = 2
+}
+export declare class TestingConnection implements Connection<string> {
+    private state;
+    private sendPromise;
+    private resolve;
+    private sendHook;
+    private status;
+    private responseText;
+    private headers;
+    private errorCode;
+    constructor(sendHook: SendHook | null);
+    send(url: string, method: string, _isUsingEmulator: boolean, body?: ArrayBufferView | Blob | string | null, headers?: Headers): Promise<void>;
+    simulateResponse(status: number, body: string, headers: {
+        [key: string]: string;
+    }): void;
+    getErrorCode(): ErrorCode;
+    getStatus(): number;
+    getResponse(): string;
+    getErrorText(): string;
+    abort(): void;
+    getResponseHeader(header: string): string | null;
+    addUploadProgressListener(): void;
+    removeUploadProgressListener(): void;
+}
+export declare function newTestConnection(sendHook?: SendHook | null): Connection<string>;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/node-esm/test/unit/testshared.d.ts b/frontend-old/node_modules/@firebase/storage/dist/node-esm/test/unit/testshared.d.ts
new file mode 100644
index 0000000..b267049
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/node-esm/test/unit/testshared.d.ts
@@ -0,0 +1,60 @@
+import { FirebaseApp } from '@firebase/app-types';
+import { StorageError } from '../../src/implementation/error';
+import { Headers, Connection, ConnectionType } from '../../src/implementation/connection';
+import { FirebaseAuthInternalName } from '@firebase/auth-interop-types';
+import { Provider } from '@firebase/component';
+import { AppCheckInternalComponentName } from '@firebase/app-check-interop-types';
+import { FirebaseStorageImpl } from '../../src/service';
+import { Metadata } from '../../src/metadata';
+export declare const authToken = "totally-legit-auth-token";
+export declare const appCheckToken = "totally-shady-token";
+export declare const bucket = "mybucket";
+export declare const fakeApp: FirebaseApp;
+export declare const fakeAuthProvider: Provider<"auth-internal">;
+export declare const emptyAuthProvider: Provider<"auth-internal">;
+export declare const fakeAppCheckTokenProvider: Provider<"app-check-internal">;
+export declare function makeFakeApp(bucketArg?: string): FirebaseApp;
+export declare function makeFakeAuthProvider(token: {
+    accessToken: string;
+}): Provider<FirebaseAuthInternalName>;
+export declare function makeFakeAppCheckProvider(tokenResult: {
+    token: string;
+}): Provider<AppCheckInternalComponentName>;
+/**
+ * Returns something that looks like an fbs.XhrIo with the given headers
+ * and status.
+ */
+export declare function fakeXhrIo<I extends ConnectionType = string>(headers: Headers, status?: number): Connection<I>;
+/**
+ * Binds ignoring types. Used to test calls involving improper arguments.
+ */
+export declare function bind(f: Function, ctx: any, ...args: any[]): () => void;
+export declare function assertThrows(f: () => void, code: string): StorageError;
+export declare function assertUint8ArrayEquals(arr1: Uint8Array, arr2: Uint8Array): void;
+export declare function assertObjectIncludes(included: {
+    [name: string]: any;
+}, obj: {
+    [name: string]: any;
+}): void;
+interface Response {
+    status: number;
+    body: string;
+    headers: Headers;
+}
+export type RequestHandler = (url: string, method: string, body?: ArrayBufferView | Blob | string | null, headers?: Headers) => Response;
+export declare function storageServiceWithHandler(handler: RequestHandler, shouldResponseCb?: () => boolean): FirebaseStorageImpl;
+export declare function fakeServerHandler(fakeMetadata?: Partial<Metadata>): RequestHandler;
+/**
+ * Responds with a 503 for finalize.
+ * @param fakeMetadata metadata to respond with for finalize
+ * @returns a handler for requests
+ */
+export declare function fake503ForFinalizeServerHandler(fakeMetadata?: Partial<Metadata>): RequestHandler;
+/**
+ * Responds with a 503 for upload.
+ * @param fakeMetadata metadata to respond with for query
+ * @returns a handler for requests
+ */
+export declare function fake503ForUploadServerHandler(fakeMetadata?: Partial<Metadata>, cb?: () => void): RequestHandler;
+export declare function fakeOneShot503ServerHandler(fakeMetadata?: Partial<Metadata>): RequestHandler;
+export {};
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/api.browser.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/api.browser.d.ts
new file mode 100644
index 0000000..00e4761
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/api.browser.d.ts
@@ -0,0 +1,47 @@
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { StorageReference } from './public-types';
+/**
+ * Downloads the data at the object's location. Returns an error if the object
+ * is not found.
+ *
+ * To use this functionality, you have to whitelist your app's origin in your
+ * Cloud Storage bucket. See also
+ * https://cloud.google.com/storage/docs/configuring-cors
+ *
+ * This API is not available in Node.
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A Promise that resolves with a Blob containing the object's bytes
+ */
+export declare function getBlob(ref: StorageReference, maxDownloadSizeBytes?: number): Promise<Blob>;
+/**
+ * Downloads the data at the object's location. Raises an error event if the
+ * object is not found.
+ *
+ * This API is only available in Node.
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A stream with the object's data as bytes
+ */
+export declare function getStream(ref: StorageReference, maxDownloadSizeBytes?: number): ReadableStream;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/api.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/api.d.ts
new file mode 100644
index 0000000..3ba97cc
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/api.d.ts
@@ -0,0 +1,200 @@
+/**
+ * @license
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { FirebaseApp } from '@firebase/app';
+import { StorageReference, FirebaseStorage, UploadResult, ListOptions, ListResult, UploadTask, SettableMetadata, UploadMetadata, FullMetadata } from './public-types';
+import { Reference } from './reference';
+import { EmulatorMockTokenOptions } from '@firebase/util';
+import { StringFormat } from './implementation/string';
+export { EmulatorMockTokenOptions } from '@firebase/util';
+export { StorageError, StorageErrorCode } from './implementation/error';
+/**
+ * Public types.
+ */
+export * from './public-types';
+export { Location as _Location } from './implementation/location';
+export { UploadTask as _UploadTask } from './task';
+export type { Reference as _Reference } from './reference';
+export type { FirebaseStorageImpl as _FirebaseStorageImpl } from './service';
+export { FbsBlob as _FbsBlob } from './implementation/blob';
+export { dataFromString as _dataFromString } from './implementation/string';
+export { invalidRootOperation as _invalidRootOperation, invalidArgument as _invalidArgument } from './implementation/error';
+export { TaskEvent as _TaskEvent, TaskState as _TaskState } from './implementation/taskenums';
+export { StringFormat };
+/**
+ * Downloads the data at the object's location. Returns an error if the object
+ * is not found.
+ *
+ * To use this functionality, you have to whitelist your app's origin in your
+ * Cloud Storage bucket. See also
+ * https://cloud.google.com/storage/docs/configuring-cors
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A Promise containing the object's bytes
+ */
+export declare function getBytes(ref: StorageReference, maxDownloadSizeBytes?: number): Promise<ArrayBuffer>;
+/**
+ * Uploads data to this object's location.
+ * The upload is not resumable.
+ * @public
+ * @param ref - {@link StorageReference} where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the data to upload.
+ * @returns A Promise containing an UploadResult
+ */
+export declare function uploadBytes(ref: StorageReference, data: Blob | Uint8Array | ArrayBuffer, metadata?: UploadMetadata): Promise<UploadResult>;
+/**
+ * Uploads a string to this object's location.
+ * The upload is not resumable.
+ * @public
+ * @param ref - {@link StorageReference} where string should be uploaded.
+ * @param value - The string to upload.
+ * @param format - The format of the string to upload.
+ * @param metadata - Metadata for the string to upload.
+ * @returns A Promise containing an UploadResult
+ */
+export declare function uploadString(ref: StorageReference, value: string, format?: StringFormat, metadata?: UploadMetadata): Promise<UploadResult>;
+/**
+ * Uploads data to this object's location.
+ * The upload can be paused and resumed, and exposes progress updates.
+ * @public
+ * @param ref - {@link StorageReference} where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the data to upload.
+ * @returns An UploadTask
+ */
+export declare function uploadBytesResumable(ref: StorageReference, data: Blob | Uint8Array | ArrayBuffer, metadata?: UploadMetadata): UploadTask;
+/**
+ * A `Promise` that resolves with the metadata for this object. If this
+ * object doesn't exist or metadata cannot be retrieved, the promise is
+ * rejected.
+ * @public
+ * @param ref - {@link StorageReference} to get metadata from.
+ */
+export declare function getMetadata(ref: StorageReference): Promise<FullMetadata>;
+/**
+ * Updates the metadata for this object.
+ * @public
+ * @param ref - {@link StorageReference} to update metadata for.
+ * @param metadata - The new metadata for the object.
+ *     Only values that have been explicitly set will be changed. Explicitly
+ *     setting a value to null will remove the metadata.
+ * @returns A `Promise` that resolves with the new metadata for this object.
+ */
+export declare function updateMetadata(ref: StorageReference, metadata: SettableMetadata): Promise<FullMetadata>;
+/**
+ * List items (files) and prefixes (folders) under this storage reference.
+ *
+ * List API is only available for Firebase Rules Version 2.
+ *
+ * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'
+ * delimited folder structure.
+ * Refer to GCS's List API if you want to learn more.
+ *
+ * To adhere to Firebase Rules's Semantics, Firebase Storage does not
+ * support objects whose paths end with "/" or contain two consecutive
+ * "/"s. Firebase Storage List API will filter these unsupported objects.
+ * list() may fail if there are too many unsupported objects in the bucket.
+ * @public
+ *
+ * @param ref - {@link StorageReference} to get list from.
+ * @param options - See {@link ListOptions} for details.
+ * @returns A `Promise` that resolves with the items and prefixes.
+ *      `prefixes` contains references to sub-folders and `items`
+ *      contains references to objects in this folder. `nextPageToken`
+ *      can be used to get the rest of the results.
+ */
+export declare function list(ref: StorageReference, options?: ListOptions): Promise<ListResult>;
+/**
+ * List all items (files) and prefixes (folders) under this storage reference.
+ *
+ * This is a helper method for calling list() repeatedly until there are
+ * no more results. The default pagination size is 1000.
+ *
+ * Note: The results may not be consistent if objects are changed while this
+ * operation is running.
+ *
+ * Warning: `listAll` may potentially consume too many resources if there are
+ * too many results.
+ * @public
+ * @param ref - {@link StorageReference} to get list from.
+ *
+ * @returns A `Promise` that resolves with all the items and prefixes under
+ *      the current storage reference. `prefixes` contains references to
+ *      sub-directories and `items` contains references to objects in this
+ *      folder. `nextPageToken` is never returned.
+ */
+export declare function listAll(ref: StorageReference): Promise<ListResult>;
+/**
+ * Returns the download URL for the given {@link StorageReference}.
+ * @public
+ * @param ref - {@link StorageReference} to get the download URL for.
+ * @returns A `Promise` that resolves with the download
+ *     URL for this object.
+ */
+export declare function getDownloadURL(ref: StorageReference): Promise<string>;
+/**
+ * Deletes the object at this location.
+ * @public
+ * @param ref - {@link StorageReference} for object to delete.
+ * @returns A `Promise` that resolves if the deletion succeeds.
+ */
+export declare function deleteObject(ref: StorageReference): Promise<void>;
+/**
+ * Returns a {@link StorageReference} for the given url.
+ * @param storage - {@link FirebaseStorage} instance.
+ * @param url - URL. If empty, returns root reference.
+ * @public
+ */
+export declare function ref(storage: FirebaseStorage, url?: string): StorageReference;
+/**
+ * Returns a {@link StorageReference} for the given path in the
+ * default bucket.
+ * @param storageOrRef - {@link FirebaseStorage} or {@link StorageReference}.
+ * @param pathOrUrlStorage - path. If empty, returns root reference (if {@link FirebaseStorage}
+ * instance provided) or returns same reference (if {@link StorageReference} provided).
+ * @public
+ */
+export declare function ref(storageOrRef: FirebaseStorage | StorageReference, path?: string): StorageReference;
+/**
+ * @internal
+ */
+export declare function _getChild(ref: StorageReference, childPath: string): Reference;
+/**
+ * Gets a {@link FirebaseStorage} instance for the given Firebase app.
+ * @public
+ * @param app - Firebase app to get {@link FirebaseStorage} instance for.
+ * @param bucketUrl - The gs:// url to your Firebase Storage Bucket.
+ * If not passed, uses the app's default Storage Bucket.
+ * @returns A {@link FirebaseStorage} instance.
+ */
+export declare function getStorage(app?: FirebaseApp, bucketUrl?: string): FirebaseStorage;
+/**
+ * Modify this {@link FirebaseStorage} instance to communicate with the Cloud Storage emulator.
+ *
+ * @param storage - The {@link FirebaseStorage} instance
+ * @param host - The emulator host (ex: localhost)
+ * @param port - The emulator port (ex: 5001)
+ * @param options - Emulator options. `options.mockUserToken` is the mock auth
+ * token to use for unit testing Security Rules.
+ * @public
+ */
+export declare function connectStorageEmulator(storage: FirebaseStorage, host: string, port: number, options?: {
+    mockUserToken?: EmulatorMockTokenOptions | string;
+}): void;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/api.node.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/api.node.d.ts
new file mode 100644
index 0000000..00e4761
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/api.node.d.ts
@@ -0,0 +1,47 @@
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { StorageReference } from './public-types';
+/**
+ * Downloads the data at the object's location. Returns an error if the object
+ * is not found.
+ *
+ * To use this functionality, you have to whitelist your app's origin in your
+ * Cloud Storage bucket. See also
+ * https://cloud.google.com/storage/docs/configuring-cors
+ *
+ * This API is not available in Node.
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A Promise that resolves with a Blob containing the object's bytes
+ */
+export declare function getBlob(ref: StorageReference, maxDownloadSizeBytes?: number): Promise<Blob>;
+/**
+ * Downloads the data at the object's location. Raises an error event if the
+ * object is not found.
+ *
+ * This API is only available in Node.
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A stream with the object's data as bytes
+ */
+export declare function getStream(ref: StorageReference, maxDownloadSizeBytes?: number): ReadableStream;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/constants.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/constants.d.ts
new file mode 100644
index 0000000..c9c810f
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/constants.d.ts
@@ -0,0 +1,20 @@
+/**
+ * @license
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Type constant for Firebase Storage.
+ */
+export declare const STORAGE_TYPE = "storage";
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/implementation/async.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/async.d.ts
new file mode 100644
index 0000000..9d01868
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/async.d.ts
@@ -0,0 +1,22 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Returns a function that invokes f with its arguments asynchronously as a
+ * microtask, i.e. as soon as possible after the current script returns back
+ * into browser code.
+ */
+export declare function async(f: Function): Function;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/implementation/backoff.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/backoff.d.ts
new file mode 100644
index 0000000..39ab9b7
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/backoff.d.ts
@@ -0,0 +1,43 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Provides a method for running a function with exponential
+ * backoff.
+ */
+type id = (p1: boolean) => void;
+export { id };
+/**
+ * Accepts a callback for an action to perform (`doRequest`),
+ * and then a callback for when the backoff has completed (`backoffCompleteCb`).
+ * The callback sent to start requires an argument to call (`onRequestComplete`).
+ * When `start` calls `doRequest`, it passes a callback for when the request has
+ * completed, `onRequestComplete`. Based on this, the backoff continues, with
+ * another call to `doRequest` and the above loop continues until the timeout
+ * is hit, or a successful response occurs.
+ * @description
+ * @param doRequest Callback to perform request
+ * @param backoffCompleteCb Callback to call when backoff has been completed
+ */
+export declare function start(doRequest: (onRequestComplete: (success: boolean) => void, canceled: boolean) => void, backoffCompleteCb: (...args: any[]) => unknown, timeout: number): id;
+/**
+ * Stops the retry loop from repeating.
+ * If the function is currently "in between" retries, it is invoked immediately
+ * with the second parameter as "true". Otherwise, it will be invoked once more
+ * after the current invocation finishes iff the current invocation would have
+ * triggered another retry.
+ */
+export declare function stop(id: id): void;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/implementation/blob.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/blob.d.ts
new file mode 100644
index 0000000..419491b
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/blob.d.ts
@@ -0,0 +1,34 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @param opt_elideCopy - If true, doesn't copy mutable input data
+ *     (e.g. Uint8Arrays). Pass true only if you know the objects will not be
+ *     modified after this blob's construction.
+ *
+ * @internal
+ */
+export declare class FbsBlob {
+    private data_;
+    private size_;
+    private type_;
+    constructor(data: Blob | Uint8Array | ArrayBuffer, elideCopy?: boolean);
+    size(): number;
+    type(): string;
+    slice(startByte: number, endByte: number): FbsBlob | null;
+    static getBlob(...args: Array<string | FbsBlob>): FbsBlob | null;
+    uploadData(): Blob | Uint8Array;
+}
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/implementation/connection.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/connection.d.ts
new file mode 100644
index 0000000..269f2d9
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/connection.d.ts
@@ -0,0 +1,56 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/** Network headers */
+export type Headers = Record<string, string>;
+/** Response type exposed by the networking APIs. */
+export type ConnectionType = string | ArrayBuffer | Blob | ReadableStream<Uint8Array>;
+/**
+ * A lightweight wrapper around XMLHttpRequest with a
+ * goog.net.XhrIo-like interface.
+ *
+ * You can create a new connection by invoking `newTextConnection()`,
+ * `newBytesConnection()` or `newStreamConnection()`.
+ */
+export interface Connection<T extends ConnectionType> {
+    /**
+     * Sends a request to the provided URL.
+     *
+     * This method never rejects its promise. In case of encountering an error,
+     * it sets an error code internally which can be accessed by calling
+     * getErrorCode() by callers.
+     */
+    send(url: string, method: string, isUsingEmulator: boolean, body?: ArrayBufferView | Blob | string | null, headers?: Headers): Promise<void>;
+    getErrorCode(): ErrorCode;
+    getStatus(): number;
+    getResponse(): T;
+    getErrorText(): string;
+    /**
+     * Abort the request.
+     */
+    abort(): void;
+    getResponseHeader(header: string): string | null;
+    addUploadProgressListener(listener: (p1: ProgressEvent) => void): void;
+    removeUploadProgressListener(listener: (p1: ProgressEvent) => void): void;
+}
+/**
+ * Error codes for requests made by the XhrIo wrapper.
+ */
+export declare enum ErrorCode {
+    NO_ERROR = 0,
+    NETWORK_ERROR = 1,
+    ABORT = 2
+}
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/implementation/constants.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/constants.d.ts
new file mode 100644
index 0000000..957b4d6
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/constants.d.ts
@@ -0,0 +1,48 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Constants used in the Firebase Storage library.
+ */
+/**
+ * Domain name for firebase storage.
+ */
+export declare const DEFAULT_HOST = "firebasestorage.googleapis.com";
+/**
+ * The key in Firebase config json for the storage bucket.
+ */
+export declare const CONFIG_STORAGE_BUCKET_KEY = "storageBucket";
+/**
+ * 2 minutes
+ *
+ * The timeout for all operations except upload.
+ */
+export declare const DEFAULT_MAX_OPERATION_RETRY_TIME: number;
+/**
+ * 10 minutes
+ *
+ * The timeout for upload.
+ */
+export declare const DEFAULT_MAX_UPLOAD_RETRY_TIME: number;
+/**
+ * 1 second
+ */
+export declare const DEFAULT_MIN_SLEEP_TIME_MILLIS = 1000;
+/**
+ * This is the value of Number.MIN_SAFE_INTEGER, which is not well supported
+ * enough for us to use it directly.
+ */
+export declare const MIN_SAFE_INTEGER = -9007199254740991;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/implementation/error.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/error.d.ts
new file mode 100644
index 0000000..dfc0884
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/error.d.ts
@@ -0,0 +1,126 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { FirebaseError } from '@firebase/util';
+/**
+ * An error returned by the Firebase Storage SDK.
+ * @public
+ */
+export declare class StorageError extends FirebaseError {
+    private status_;
+    private readonly _baseMessage;
+    /**
+     * Stores custom error data unique to the `StorageError`.
+     */
+    customData: {
+        serverResponse: string | null;
+    };
+    /**
+     * @param code - A `StorageErrorCode` string to be prefixed with 'storage/' and
+     *  added to the end of the message.
+     * @param message  - Error message.
+     * @param status_ - Corresponding HTTP Status Code
+     */
+    constructor(code: StorageErrorCode, message: string, status_?: number);
+    get status(): number;
+    set status(status: number);
+    /**
+     * Compares a `StorageErrorCode` against this error's code, filtering out the prefix.
+     */
+    _codeEquals(code: StorageErrorCode): boolean;
+    /**
+     * Optional response message that was added by the server.
+     */
+    get serverResponse(): null | string;
+    set serverResponse(serverResponse: string | null);
+}
+export declare const errors: {};
+/**
+ * @public
+ * Error codes that can be attached to `StorageError` objects.
+ */
+export declare enum StorageErrorCode {
+    UNKNOWN = "unknown",
+    OBJECT_NOT_FOUND = "object-not-found",
+    BUCKET_NOT_FOUND = "bucket-not-found",
+    PROJECT_NOT_FOUND = "project-not-found",
+    QUOTA_EXCEEDED = "quota-exceeded",
+    UNAUTHENTICATED = "unauthenticated",
+    UNAUTHORIZED = "unauthorized",
+    UNAUTHORIZED_APP = "unauthorized-app",
+    RETRY_LIMIT_EXCEEDED = "retry-limit-exceeded",
+    INVALID_CHECKSUM = "invalid-checksum",
+    CANCELED = "canceled",
+    INVALID_EVENT_NAME = "invalid-event-name",
+    INVALID_URL = "invalid-url",
+    INVALID_DEFAULT_BUCKET = "invalid-default-bucket",
+    NO_DEFAULT_BUCKET = "no-default-bucket",
+    CANNOT_SLICE_BLOB = "cannot-slice-blob",
+    SERVER_FILE_WRONG_SIZE = "server-file-wrong-size",
+    NO_DOWNLOAD_URL = "no-download-url",
+    INVALID_ARGUMENT = "invalid-argument",
+    INVALID_ARGUMENT_COUNT = "invalid-argument-count",
+    APP_DELETED = "app-deleted",
+    INVALID_ROOT_OPERATION = "invalid-root-operation",
+    INVALID_FORMAT = "invalid-format",
+    INTERNAL_ERROR = "internal-error",
+    UNSUPPORTED_ENVIRONMENT = "unsupported-environment"
+}
+export declare function prependCode(code: StorageErrorCode): string;
+export declare function unknown(): StorageError;
+export declare function objectNotFound(path: string): StorageError;
+export declare function bucketNotFound(bucket: string): StorageError;
+export declare function projectNotFound(project: string): StorageError;
+export declare function quotaExceeded(bucket: string): StorageError;
+export declare function unauthenticated(): StorageError;
+export declare function unauthorizedApp(): StorageError;
+export declare function unauthorized(path: string): StorageError;
+export declare function retryLimitExceeded(): StorageError;
+export declare function invalidChecksum(path: string, checksum: string, calculated: string): StorageError;
+export declare function canceled(): StorageError;
+export declare function invalidEventName(name: string): StorageError;
+export declare function invalidUrl(url: string): StorageError;
+export declare function invalidDefaultBucket(bucket: string): StorageError;
+export declare function noDefaultBucket(): StorageError;
+export declare function cannotSliceBlob(): StorageError;
+export declare function serverFileWrongSize(): StorageError;
+export declare function noDownloadURL(): StorageError;
+export declare function missingPolyFill(polyFill: string): StorageError;
+/**
+ * @internal
+ */
+export declare function invalidArgument(message: string): StorageError;
+export declare function invalidArgumentCount(argMin: number, argMax: number, fnName: string, real: number): StorageError;
+export declare function appDeleted(): StorageError;
+/**
+ * @param name - The name of the operation that was invalid.
+ *
+ * @internal
+ */
+export declare function invalidRootOperation(name: string): StorageError;
+/**
+ * @param format - The format that was not valid.
+ * @param message - A message describing the format violation.
+ */
+export declare function invalidFormat(format: string, message: string): StorageError;
+/**
+ * @param message - A message describing the internal error.
+ */
+export declare function unsupportedEnvironment(message: string): StorageError;
+/**
+ * @param message - A message describing the internal error.
+ */
+export declare function internalError(message: string): StorageError;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/implementation/failrequest.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/failrequest.d.ts
new file mode 100644
index 0000000..89d079c
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/failrequest.d.ts
@@ -0,0 +1,29 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { StorageError } from './error';
+import { Request } from './request';
+/**
+ * A request whose promise always fails.
+ */
+export declare class FailRequest<T> implements Request<T> {
+    promise_: Promise<T>;
+    constructor(error: StorageError);
+    /** @inheritDoc */
+    getPromise(): Promise<T>;
+    /** @inheritDoc */
+    cancel(_appDelete?: boolean): void;
+}
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/implementation/fs.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/fs.d.ts
new file mode 100644
index 0000000..30cd68d
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/fs.d.ts
@@ -0,0 +1,17 @@
+/**
+ * Concatenates one or more values together and converts them to a Blob.
+ *
+ * @param args The values that will make up the resulting blob.
+ * @return The blob.
+ */
+export declare function getBlob(...args: Array<string | Blob | ArrayBuffer>): Blob;
+/**
+ * Slices the blob. The returned blob contains data from the start byte
+ * (inclusive) till the end byte (exclusive). Negative indices cannot be used.
+ *
+ * @param blob The blob to be sliced.
+ * @param start Index of the starting byte.
+ * @param end Index of the ending byte.
+ * @return The blob slice or null if not supported.
+ */
+export declare function sliceBlob(blob: Blob, start: number, end: number): Blob | null;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/implementation/json.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/json.d.ts
new file mode 100644
index 0000000..58151dc
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/json.d.ts
@@ -0,0 +1,7 @@
+/**
+ * Returns the Object resulting from parsing the given JSON, or null if the
+ * given string does not represent a JSON object.
+ */
+export declare function jsonObjectOrNull(s: string): {
+    [name: string]: unknown;
+} | null;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/implementation/list.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/list.d.ts
new file mode 100644
index 0000000..9107503
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/list.d.ts
@@ -0,0 +1,19 @@
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { ListResult } from '../list';
+import { FirebaseStorageImpl } from '../service';
+export declare function fromResponseString(service: FirebaseStorageImpl, bucket: string, resourceString: string): ListResult | null;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/implementation/location.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/location.d.ts
new file mode 100644
index 0000000..f6e1ab6
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/location.d.ts
@@ -0,0 +1,32 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Firebase Storage location data.
+ *
+ * @internal
+ */
+export declare class Location {
+    readonly bucket: string;
+    private path_;
+    constructor(bucket: string, path: string);
+    get path(): string;
+    get isRoot(): boolean;
+    fullServerUrl(): string;
+    bucketOnlyServerUrl(): string;
+    static makeFromBucketSpec(bucketString: string, host: string): Location;
+    static makeFromUrl(url: string, host: string): Location;
+}
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/implementation/metadata.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/metadata.d.ts
new file mode 100644
index 0000000..fadfd35
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/metadata.d.ts
@@ -0,0 +1,40 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Documentation for the metadata format
+ */
+import { Metadata } from '../metadata';
+import { FirebaseStorageImpl } from '../service';
+export declare function noXform_<T>(metadata: Metadata, value: T): T;
+declare class Mapping<T> {
+    server: string;
+    local: string;
+    writable: boolean;
+    xform: (p1: Metadata, p2?: T) => T | undefined;
+    constructor(server: string, local?: string | null, writable?: boolean, xform?: ((p1: Metadata, p2?: T) => T | undefined) | null);
+}
+type Mappings = Array<Mapping<string> | Mapping<number>>;
+export { Mappings };
+export declare function xformPath(fullPath: string | undefined): string | undefined;
+export declare function getMappings(): Mappings;
+export declare function addRef(metadata: Metadata, service: FirebaseStorageImpl): void;
+export declare function fromResource(service: FirebaseStorageImpl, resource: {
+    [name: string]: unknown;
+}, mappings: Mappings): Metadata;
+export declare function fromResourceString(service: FirebaseStorageImpl, resourceString: string, mappings: Mappings): Metadata | null;
+export declare function downloadUrlFromResourceString(metadata: Metadata, resourceString: string, host: string, protocol: string): string | null;
+export declare function toResourceString(metadata: Partial<Metadata>, mappings: Mappings): string;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/implementation/observer.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/observer.d.ts
new file mode 100644
index 0000000..0702651
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/observer.d.ts
@@ -0,0 +1,47 @@
+import { StorageError } from './error';
+/**
+ * Function that is called once for each value in a stream of values.
+ */
+export type NextFn<T> = (value: T) => void;
+/**
+ * A function that is called with a `StorageError`
+ * if the event stream ends due to an error.
+ */
+export type ErrorFn = (error: StorageError) => void;
+/**
+ * A function that is called if the event stream ends normally.
+ */
+export type CompleteFn = () => void;
+/**
+ * Unsubscribes from a stream.
+ */
+export type Unsubscribe = () => void;
+/**
+ * An observer identical to the `Observer` defined in packages/util except the
+ * error passed into the ErrorFn is specifically a `StorageError`.
+ */
+export interface StorageObserver<T> {
+    /**
+     * Function that is called once for each value in the event stream.
+     */
+    next?: NextFn<T>;
+    /**
+     * A function that is called with a `StorageError`
+     * if the event stream ends due to an error.
+     */
+    error?: ErrorFn;
+    /**
+     * A function that is called if the event stream ends normally.
+     */
+    complete?: CompleteFn;
+}
+/**
+ * Subscribes to an event stream.
+ */
+export type Subscribe<T> = (next?: NextFn<T> | StorageObserver<T>, error?: ErrorFn, complete?: CompleteFn) => Unsubscribe;
+export declare class Observer<T> implements StorageObserver<T> {
+    next?: NextFn<T>;
+    error?: ErrorFn;
+    complete?: CompleteFn;
+    constructor(nextOrObserver?: NextFn<T> | StorageObserver<T>, error?: ErrorFn, complete?: CompleteFn);
+}
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/implementation/path.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/path.d.ts
new file mode 100644
index 0000000..f566805
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/path.d.ts
@@ -0,0 +1,31 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Contains helper methods for manipulating paths.
+ */
+/**
+ * @return Null if the path is already at the root.
+ */
+export declare function parent(path: string): string | null;
+export declare function child(path: string, childPath: string): string;
+/**
+ * Returns the last component of a path.
+ * '/foo/bar' -> 'bar'
+ * '/foo/bar/baz/' -> 'baz/'
+ * '/a' -> 'a'
+ */
+export declare function lastComponent(path: string): string;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/implementation/request.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/request.d.ts
new file mode 100644
index 0000000..1b01a28
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/request.d.ts
@@ -0,0 +1,47 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { RequestInfo } from './requestinfo';
+import { Connection, Headers, ConnectionType } from './connection';
+export interface Request<T> {
+    getPromise(): Promise<T>;
+    /**
+     * Cancels the request. IMPORTANT: the promise may still be resolved with an
+     * appropriate value (if the request is finished before you call this method,
+     * but the promise has not yet been resolved), so don't just assume it will be
+     * rejected if you call this function.
+     * @param appDelete - True if the cancelation came from the app being deleted.
+     */
+    cancel(appDelete?: boolean): void;
+}
+/**
+ * A collection of information about the result of a network request.
+ * @param opt_canceled - Defaults to false.
+ */
+export declare class RequestEndStatus<I extends ConnectionType> {
+    wasSuccessCode: boolean;
+    connection: Connection<I> | null;
+    /**
+     * True if the request was canceled.
+     */
+    canceled: boolean;
+    constructor(wasSuccessCode: boolean, connection: Connection<I> | null, canceled?: boolean);
+}
+export declare function addAuthHeader_(headers: Headers, authToken: string | null): void;
+export declare function addVersionHeader_(headers: Headers, firebaseVersion?: string): void;
+export declare function addGmpidHeader_(headers: Headers, appId: string | null): void;
+export declare function addAppCheckHeader_(headers: Headers, appCheckToken: string | null): void;
+export declare function makeRequest<I extends ConnectionType, O>(requestInfo: RequestInfo<I, O>, appId: string | null, authToken: string | null, appCheckToken: string | null, requestFactory: () => Connection<I>, firebaseVersion?: string, retry?: boolean, isUsingEmulator?: boolean): Request<O>;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/implementation/requestinfo.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/requestinfo.d.ts
new file mode 100644
index 0000000..fec97c9
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/requestinfo.d.ts
@@ -0,0 +1,73 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { StorageError } from './error';
+import { Headers, Connection, ConnectionType } from './connection';
+/**
+ * Type for url params stored in RequestInfo.
+ */
+export interface UrlParams {
+    [name: string]: string | number;
+}
+/**
+ * A function that converts a server response to the API type expected by the
+ * SDK.
+ *
+ * @param I - the type of the backend's network response
+ * @param O - the output response type used by the rest of the SDK.
+ */
+export type RequestHandler<I extends ConnectionType, O> = (connection: Connection<I>, response: I) => O;
+/** A function to handle an error. */
+export type ErrorHandler = (connection: Connection<ConnectionType>, response: StorageError) => StorageError;
+/**
+ * Contains a fully specified request.
+ *
+ * @param I - the type of the backend's network response.
+ * @param O - the output response type used by the rest of the SDK.
+ */
+export declare class RequestInfo<I extends ConnectionType, O> {
+    url: string;
+    method: string;
+    /**
+     * Returns the value with which to resolve the request's promise. Only called
+     * if the request is successful. Throw from this function to reject the
+     * returned Request's promise with the thrown error.
+     * Note: The XhrIo passed to this function may be reused after this callback
+     * returns. Do not keep a reference to it in any way.
+     */
+    handler: RequestHandler<I, O>;
+    timeout: number;
+    urlParams: UrlParams;
+    headers: Headers;
+    body: Blob | string | Uint8Array | null;
+    errorHandler: ErrorHandler | null;
+    /**
+     * Called with the current number of bytes uploaded and total size (-1 if not
+     * computable) of the request body (i.e. used to report upload progress).
+     */
+    progressCallback: ((p1: number, p2: number) => void) | null;
+    successCodes: number[];
+    additionalRetryCodes: number[];
+    constructor(url: string, method: string, 
+    /**
+     * Returns the value with which to resolve the request's promise. Only called
+     * if the request is successful. Throw from this function to reject the
+     * returned Request's promise with the thrown error.
+     * Note: The XhrIo passed to this function may be reused after this callback
+     * returns. Do not keep a reference to it in any way.
+     */
+    handler: RequestHandler<I, O>, timeout: number);
+}
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/implementation/requests.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/requests.d.ts
new file mode 100644
index 0000000..a019496
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/requests.d.ts
@@ -0,0 +1,84 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Defines methods for interacting with the network.
+ */
+import { Metadata } from '../metadata';
+import { ListResult } from '../list';
+import { FbsBlob } from './blob';
+import { StorageError } from './error';
+import { Location } from './location';
+import { Mappings } from './metadata';
+import { RequestInfo } from './requestinfo';
+import { Connection, ConnectionType } from './connection';
+import { FirebaseStorageImpl } from '../service';
+/**
+ * Throws the UNKNOWN StorageError if cndn is false.
+ */
+export declare function handlerCheck(cndn: boolean): void;
+export declare function metadataHandler(service: FirebaseStorageImpl, mappings: Mappings): (p1: Connection<string>, p2: string) => Metadata;
+export declare function listHandler(service: FirebaseStorageImpl, bucket: string): (p1: Connection<string>, p2: string) => ListResult;
+export declare function downloadUrlHandler(service: FirebaseStorageImpl, mappings: Mappings): (p1: Connection<string>, p2: string) => string | null;
+export declare function sharedErrorHandler(location: Location): (p1: Connection<ConnectionType>, p2: StorageError) => StorageError;
+export declare function objectErrorHandler(location: Location): (p1: Connection<ConnectionType>, p2: StorageError) => StorageError;
+export declare function getMetadata(service: FirebaseStorageImpl, location: Location, mappings: Mappings): RequestInfo<string, Metadata>;
+export declare function list(service: FirebaseStorageImpl, location: Location, delimiter?: string, pageToken?: string | null, maxResults?: number | null): RequestInfo<string, ListResult>;
+export declare function getBytes<I extends ConnectionType>(service: FirebaseStorageImpl, location: Location, maxDownloadSizeBytes?: number): RequestInfo<I, I>;
+export declare function getDownloadUrl(service: FirebaseStorageImpl, location: Location, mappings: Mappings): RequestInfo<string, string | null>;
+export declare function updateMetadata(service: FirebaseStorageImpl, location: Location, metadata: Partial<Metadata>, mappings: Mappings): RequestInfo<string, Metadata>;
+export declare function deleteObject(service: FirebaseStorageImpl, location: Location): RequestInfo<string, void>;
+export declare function determineContentType_(metadata: Metadata | null, blob: FbsBlob | null): string;
+export declare function metadataForUpload_(location: Location, blob: FbsBlob, metadata?: Metadata | null): Metadata;
+/**
+ * Prepare RequestInfo for uploads as Content-Type: multipart.
+ */
+export declare function multipartUpload(service: FirebaseStorageImpl, location: Location, mappings: Mappings, blob: FbsBlob, metadata?: Metadata | null): RequestInfo<string, Metadata>;
+/**
+ * @param current The number of bytes that have been uploaded so far.
+ * @param total The total number of bytes in the upload.
+ * @param opt_finalized True if the server has finished the upload.
+ * @param opt_metadata The upload metadata, should
+ *     only be passed if opt_finalized is true.
+ */
+export declare class ResumableUploadStatus {
+    current: number;
+    total: number;
+    finalized: boolean;
+    metadata: Metadata | null;
+    constructor(current: number, total: number, finalized?: boolean, metadata?: Metadata | null);
+}
+export declare function checkResumeHeader_(xhr: Connection<string>, allowed?: string[]): string;
+export declare function createResumableUpload(service: FirebaseStorageImpl, location: Location, mappings: Mappings, blob: FbsBlob, metadata?: Metadata | null): RequestInfo<string, string>;
+/**
+ * @param url From a call to fbs.requests.createResumableUpload.
+ */
+export declare function getResumableUploadStatus(service: FirebaseStorageImpl, location: Location, url: string, blob: FbsBlob): RequestInfo<string, ResumableUploadStatus>;
+/**
+ * Any uploads via the resumable upload API must transfer a number of bytes
+ * that is a multiple of this number.
+ */
+export declare const RESUMABLE_UPLOAD_CHUNK_SIZE: number;
+/**
+ * @param url From a call to fbs.requests.createResumableUpload.
+ * @param chunkSize Number of bytes to upload.
+ * @param status The previous status.
+ *     If not passed or null, we start from the beginning.
+ * @throws fbs.Error If the upload is already complete, the passed in status
+ *     has a final size inconsistent with the blob, or the blob cannot be sliced
+ *     for upload.
+ */
+export declare function continueResumableUpload(location: Location, service: FirebaseStorageImpl, url: string, blob: FbsBlob, chunkSize: number, mappings: Mappings, status?: ResumableUploadStatus | null, progressCallback?: ((p1: number, p2: number) => void) | null): RequestInfo<string, ResumableUploadStatus>;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/implementation/string.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/string.d.ts
new file mode 100644
index 0000000..0549cf9
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/string.d.ts
@@ -0,0 +1,73 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * An enumeration of the possible string formats for upload.
+ * @public
+ */
+export type StringFormat = (typeof StringFormat)[keyof typeof StringFormat];
+/**
+ * An enumeration of the possible string formats for upload.
+ * @public
+ */
+export declare const StringFormat: {
+    /**
+     * Indicates the string should be interpreted "raw", that is, as normal text.
+     * The string will be interpreted as UTF-16, then uploaded as a UTF-8 byte
+     * sequence.
+     * Example: The string 'Hello! \\ud83d\\ude0a' becomes the byte sequence
+     * 48 65 6c 6c 6f 21 20 f0 9f 98 8a
+     */
+    readonly RAW: "raw";
+    /**
+     * Indicates the string should be interpreted as base64-encoded data.
+     * Padding characters (trailing '='s) are optional.
+     * Example: The string 'rWmO++E6t7/rlw==' becomes the byte sequence
+     * ad 69 8e fb e1 3a b7 bf eb 97
+     */
+    readonly BASE64: "base64";
+    /**
+     * Indicates the string should be interpreted as base64url-encoded data.
+     * Padding characters (trailing '='s) are optional.
+     * Example: The string 'rWmO--E6t7_rlw==' becomes the byte sequence
+     * ad 69 8e fb e1 3a b7 bf eb 97
+     */
+    readonly BASE64URL: "base64url";
+    /**
+     * Indicates the string is a data URL, such as one obtained from
+     * canvas.toDataURL().
+     * Example: the string 'data:application/octet-stream;base64,aaaa'
+     * becomes the byte sequence
+     * 69 a6 9a
+     * (the content-type "application/octet-stream" is also applied, but can
+     * be overridden in the metadata object).
+     */
+    readonly DATA_URL: "data_url";
+};
+export declare class StringData {
+    data: Uint8Array;
+    contentType: string | null;
+    constructor(data: Uint8Array, contentType?: string | null);
+}
+/**
+ * @internal
+ */
+export declare function dataFromString(format: StringFormat, stringData: string): StringData;
+export declare function utf8Bytes_(value: string): Uint8Array;
+export declare function percentEncodedBytes_(value: string): Uint8Array;
+export declare function base64Bytes_(format: StringFormat, value: string): Uint8Array;
+export declare function dataURLBytes_(dataUrl: string): Uint8Array;
+export declare function dataURLContentType_(dataUrl: string): string | null;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/implementation/taskenums.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/taskenums.d.ts
new file mode 100644
index 0000000..6c6d880
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/taskenums.d.ts
@@ -0,0 +1,77 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Enumerations used for upload tasks.
+ */
+/**
+ * An event that is triggered on a task.
+ * @internal
+ */
+export type TaskEvent = string;
+/**
+ * An event that is triggered on a task.
+ * @internal
+ */
+export declare const TaskEvent: {
+    /**
+     * For this event,
+     * <ul>
+     *   <li>The `next` function is triggered on progress updates and when the
+     *       task is paused/resumed with an `UploadTaskSnapshot` as the first
+     *       argument.</li>
+     *   <li>The `error` function is triggered if the upload is canceled or fails
+     *       for another reason.</li>
+     *   <li>The `complete` function is triggered if the upload completes
+     *       successfully.</li>
+     * </ul>
+     */
+    STATE_CHANGED: string;
+};
+/**
+ * Internal enum for task state.
+ */
+export declare const enum InternalTaskState {
+    RUNNING = "running",
+    PAUSING = "pausing",
+    PAUSED = "paused",
+    SUCCESS = "success",
+    CANCELING = "canceling",
+    CANCELED = "canceled",
+    ERROR = "error"
+}
+/**
+ * Represents the current state of a running upload.
+ * @internal
+ */
+export type TaskState = (typeof TaskState)[keyof typeof TaskState];
+/**
+ * Represents the current state of a running upload.
+ * @internal
+ */
+export declare const TaskState: {
+    /** The task is currently transferring data. */
+    readonly RUNNING: "running";
+    /** The task was paused by the user. */
+    readonly PAUSED: "paused";
+    /** The task completed successfully. */
+    readonly SUCCESS: "success";
+    /** The task was canceled. */
+    readonly CANCELED: "canceled";
+    /** The task failed with an error. */
+    readonly ERROR: "error";
+};
+export declare function taskStateFromInternalTaskState(state: InternalTaskState): TaskState;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/implementation/type.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/type.d.ts
new file mode 100644
index 0000000..ed70cc9
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/type.d.ts
@@ -0,0 +1,23 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+export declare function isJustDef<T>(p: T | null | undefined): p is T | null;
+export declare function isFunction(p: unknown): p is Function;
+export declare function isNonArrayObject(p: unknown): boolean;
+export declare function isString(p: unknown): p is string;
+export declare function isNativeBlob(p: unknown): p is Blob;
+export declare function isNativeBlobDefined(): boolean;
+export declare function validateNumber(argument: string, minValue: number, maxValue: number, value: number): void;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/implementation/url.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/url.d.ts
new file mode 100644
index 0000000..caf7f3c
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/url.d.ts
@@ -0,0 +1,22 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Functions to create and manipulate URLs for the server API.
+ */
+import { UrlParams } from './requestinfo';
+export declare function makeUrl(urlPart: string, host: string, protocol: string): string;
+export declare function makeQueryString(params: UrlParams): string;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/implementation/utils.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/utils.d.ts
new file mode 100644
index 0000000..b91f9dc
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/implementation/utils.d.ts
@@ -0,0 +1,23 @@
+/**
+ * @license
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Checks the status code to see if the action should be retried.
+ *
+ * @param status Current HTTP status code returned by server.
+ * @param additionalRetryCodes additional retry codes to check against
+ */
+export declare function isRetryStatusCode(status: number, additionalRetryCodes: number[]): boolean;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/index.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/index.d.ts
new file mode 100644
index 0000000..62b1e67
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/index.d.ts
@@ -0,0 +1,7 @@
+/**
+ * Cloud Storage for Firebase
+ *
+ * @packageDocumentation
+ */
+export * from './api';
+export * from './api.browser';
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/index.node.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/index.node.d.ts
new file mode 100644
index 0000000..2f613cd
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/index.node.d.ts
@@ -0,0 +1,7 @@
+/**
+ * Cloud Storage for Firebase
+ *
+ * @packageDocumentation
+ */
+export * from './api';
+export * from './api.node';
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/list.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/list.d.ts
new file mode 100644
index 0000000..1f015e5
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/list.d.ts
@@ -0,0 +1,41 @@
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { Reference } from './reference';
+/**
+ * Result returned by `list()`.
+ * @public
+ */
+export interface ListResult {
+    /**
+     * References to prefixes (sub-folders). You can call list() on them to
+     * get its contents.
+     *
+     * Folders are implicit based on '/' in the object paths.
+     * For example, if a bucket has two objects '/a/b/1' and '/a/b/2', list('/a')
+     * will return '/a/b' as a prefix.
+     */
+    prefixes: Reference[];
+    /**
+     * Objects in this directory.
+     * You can call getMetadata() and getDownloadUrl() on them.
+     */
+    items: Reference[];
+    /**
+     * If set, there might be more results for this list. Use this token to resume the list.
+     */
+    nextPageToken?: string;
+}
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/metadata.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/metadata.d.ts
new file mode 100644
index 0000000..48fa64f
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/metadata.d.ts
@@ -0,0 +1,27 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { FullMetadata } from './public-types';
+/**
+ * @fileoverview Documentation for the metadata format.
+ */
+/**
+ * The full set of object metadata, including read-only properties.
+ */
+interface Metadata extends FullMetadata {
+    [prop: string]: unknown;
+}
+export { Metadata };
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/platform/base64.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/platform/base64.d.ts
new file mode 100644
index 0000000..7dac903
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/platform/base64.d.ts
@@ -0,0 +1,20 @@
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/** Converts a Base64 encoded string to a binary string. */
+export declare function decodeBase64(encoded: string): string;
+/** Converts a Uint8Array to a string. */
+export declare function decodeUint8Array(data: Uint8Array): string;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/platform/browser/base64.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/platform/browser/base64.d.ts
new file mode 100644
index 0000000..23c84f2
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/platform/browser/base64.d.ts
@@ -0,0 +1,19 @@
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/** Converts a Base64 encoded string to a binary string. */
+export declare function decodeBase64(encoded: string): string;
+export declare function decodeUint8Array(data: Uint8Array): string;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/platform/browser/connection.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/platform/browser/connection.d.ts
new file mode 100644
index 0000000..14415da
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/platform/browser/connection.d.ts
@@ -0,0 +1,55 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { Connection, ConnectionType, ErrorCode, Headers } from '../../implementation/connection';
+/**
+ * Network layer for browsers. We use this instead of goog.net.XhrIo because
+ * goog.net.XhrIo is hyuuuuge and doesn't work in React Native on Android.
+ */
+declare abstract class XhrConnection<T extends ConnectionType> implements Connection<T> {
+    protected xhr_: XMLHttpRequest;
+    private errorCode_;
+    private sendPromise_;
+    protected sent_: boolean;
+    constructor();
+    abstract initXhr(): void;
+    send(url: string, method: string, isUsingEmulator: boolean, body?: ArrayBufferView | Blob | string, headers?: Headers): Promise<void>;
+    getErrorCode(): ErrorCode;
+    getStatus(): number;
+    getResponse(): T;
+    getErrorText(): string;
+    /** Aborts the request. */
+    abort(): void;
+    getResponseHeader(header: string): string | null;
+    addUploadProgressListener(listener: (p1: ProgressEvent) => void): void;
+    removeUploadProgressListener(listener: (p1: ProgressEvent) => void): void;
+}
+export declare class XhrTextConnection extends XhrConnection<string> {
+    initXhr(): void;
+}
+export declare function newTextConnection(): Connection<string>;
+export declare class XhrBytesConnection extends XhrConnection<ArrayBuffer> {
+    private data_?;
+    initXhr(): void;
+}
+export declare function newBytesConnection(): Connection<ArrayBuffer>;
+export declare class XhrBlobConnection extends XhrConnection<Blob> {
+    initXhr(): void;
+}
+export declare function newBlobConnection(): Connection<Blob>;
+export declare function newStreamConnection(): Connection<ReadableStream>;
+export declare function injectTestConnection(factory: (() => Connection<string>) | null): void;
+export {};
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/platform/connection.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/platform/connection.d.ts
new file mode 100644
index 0000000..72ed64b
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/platform/connection.d.ts
@@ -0,0 +1,22 @@
+/**
+ * @license
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { Connection } from '../implementation/connection';
+export declare function injectTestConnection(factory: (() => Connection<string>) | null): void;
+export declare function newTextConnection(): Connection<string>;
+export declare function newBytesConnection(): Connection<ArrayBuffer>;
+export declare function newBlobConnection(): Connection<Blob>;
+export declare function newStreamConnection(): Connection<ReadableStream<Uint8Array>>;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/platform/node/base64.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/platform/node/base64.d.ts
new file mode 100644
index 0000000..23c84f2
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/platform/node/base64.d.ts
@@ -0,0 +1,19 @@
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/** Converts a Base64 encoded string to a binary string. */
+export declare function decodeBase64(encoded: string): string;
+export declare function decodeUint8Array(data: Uint8Array): string;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/platform/node/connection.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/platform/node/connection.d.ts
new file mode 100644
index 0000000..a4e71fa
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/platform/node/connection.d.ts
@@ -0,0 +1,58 @@
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { Connection, ConnectionType, ErrorCode } from '../../implementation/connection';
+/**
+ * Network layer that works in Node.
+ *
+ * This network implementation should not be used in browsers as it does not
+ * support progress updates.
+ */
+declare abstract class FetchConnection<T extends ConnectionType> implements Connection<T> {
+    protected errorCode_: ErrorCode;
+    protected statusCode_: number | undefined;
+    protected body_: ArrayBuffer | undefined;
+    protected errorText_: string;
+    protected headers_: Headers | undefined;
+    protected sent_: boolean;
+    constructor();
+    send(url: string, method: string, isUsingEmulator: boolean, body?: NodeJS.ArrayBufferView | Blob | string, headers?: Record<string, string>): Promise<void>;
+    getErrorCode(): ErrorCode;
+    getStatus(): number;
+    abstract getResponse(): T;
+    getErrorText(): string;
+    abort(): void;
+    getResponseHeader(header: string): string | null;
+    addUploadProgressListener(listener: (p1: ProgressEvent) => void): void;
+    removeUploadProgressListener(listener: (p1: ProgressEvent) => void): void;
+}
+export declare class FetchTextConnection extends FetchConnection<string> {
+    getResponse(): string;
+}
+export declare function newTextConnection(): Connection<string>;
+export declare class FetchBytesConnection extends FetchConnection<ArrayBuffer> {
+    getResponse(): ArrayBuffer;
+}
+export declare function newBytesConnection(): Connection<ArrayBuffer>;
+export declare class FetchStreamConnection extends FetchConnection<ReadableStream<Uint8Array>> {
+    private stream_;
+    send(url: string, method: string, isUsingEmulator: boolean, body?: NodeJS.ArrayBufferView | Blob | string, headers?: Record<string, string>): Promise<void>;
+    getResponse(): ReadableStream;
+}
+export declare function newStreamConnection(): Connection<ReadableStream<Uint8Array>>;
+export declare function newBlobConnection(): Connection<Blob>;
+export declare function injectTestConnection(factory: (() => Connection<string>) | null): void;
+export {};
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/public-types.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/public-types.d.ts
new file mode 100644
index 0000000..033bd3c
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/public-types.d.ts
@@ -0,0 +1,424 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { FirebaseApp, _FirebaseService } from '@firebase/app';
+import { CompleteFn, NextFn, Subscribe, Unsubscribe } from '@firebase/util';
+import { StorageError } from './implementation/error';
+/**
+ * A Firebase Storage instance.
+ * @public
+ */
+export interface FirebaseStorage extends _FirebaseService {
+    /**
+     * The {@link @firebase/app#FirebaseApp} associated with this `FirebaseStorage` instance.
+     */
+    readonly app: FirebaseApp;
+    /**
+     * The maximum time to retry uploads in milliseconds.
+     */
+    maxUploadRetryTime: number;
+    /**
+     * The maximum time to retry operations other than uploads or downloads in
+     * milliseconds.
+     */
+    maxOperationRetryTime: number;
+}
+/**
+ * Represents a reference to a Google Cloud Storage object. Developers can
+ * upload, download, and delete objects, as well as get/set object metadata.
+ * @public
+ */
+export interface StorageReference {
+    /**
+     * Returns a gs:// URL for this object in the form
+     *   `gs://<bucket>/<path>/<to>/<object>`
+     * @returns The gs:// URL.
+     */
+    toString(): string;
+    /**
+     * A reference to the root of this object's bucket.
+     */
+    root: StorageReference;
+    /**
+     * The name of the bucket containing this reference's object.
+     */
+    bucket: string;
+    /**
+     * The full path of this object.
+     */
+    fullPath: string;
+    /**
+     * The short name of this object, which is the last component of the full path.
+     * For example, if fullPath is 'full/path/image.png', name is 'image.png'.
+     */
+    name: string;
+    /**
+     * The {@link FirebaseStorage} instance associated with this reference.
+     */
+    storage: FirebaseStorage;
+    /**
+     * A reference pointing to the parent location of this reference, or null if
+     * this reference is the root.
+     */
+    parent: StorageReference | null;
+}
+/**
+ * The options `list()` accepts.
+ * @public
+ */
+export interface ListOptions {
+    /**
+     * If set, limits the total number of `prefixes` and `items` to return.
+     * The default and maximum maxResults is 1000.
+     */
+    maxResults?: number | null;
+    /**
+     * The `nextPageToken` from a previous call to `list()`. If provided,
+     * listing is resumed from the previous position.
+     */
+    pageToken?: string | null;
+}
+/**
+ * Result returned by list().
+ * @public
+ */
+export interface ListResult {
+    /**
+     * References to prefixes (sub-folders). You can call list() on them to
+     * get its contents.
+     *
+     * Folders are implicit based on '/' in the object paths.
+     * For example, if a bucket has two objects '/a/b/1' and '/a/b/2', list('/a')
+     * will return '/a/b' as a prefix.
+     */
+    prefixes: StorageReference[];
+    /**
+     * Objects in this directory.
+     * You can call getMetadata() and getDownloadUrl() on them.
+     */
+    items: StorageReference[];
+    /**
+     * If set, there might be more results for this list. Use this token to resume the list.
+     */
+    nextPageToken?: string;
+}
+/**
+ * Object metadata that can be set at any time.
+ * @public
+ */
+export interface SettableMetadata {
+    /**
+     * Served as the 'Cache-Control' header on object download.
+     */
+    cacheControl?: string | undefined;
+    /**
+     * Served as the 'Content-Disposition' header on object download.
+     */
+    contentDisposition?: string | undefined;
+    /**
+     * Served as the 'Content-Encoding' header on object download.
+     */
+    contentEncoding?: string | undefined;
+    /**
+     * Served as the 'Content-Language' header on object download.
+     */
+    contentLanguage?: string | undefined;
+    /**
+     * Served as the 'Content-Type' header on object download.
+     */
+    contentType?: string | undefined;
+    /**
+     * Additional user-defined custom metadata.
+     */
+    customMetadata?: {
+        [key: string]: string;
+    } | undefined;
+}
+/**
+ * Object metadata that can be set at upload.
+ * @public
+ */
+export interface UploadMetadata extends SettableMetadata {
+    /**
+     * A Base64-encoded MD5 hash of the object being uploaded.
+     */
+    md5Hash?: string | undefined;
+}
+/**
+ * The full set of object metadata, including read-only properties.
+ * @public
+ */
+export interface FullMetadata extends UploadMetadata {
+    /**
+     * The bucket this object is contained in.
+     */
+    bucket: string;
+    /**
+     * The full path of this object.
+     */
+    fullPath: string;
+    /**
+     * The object's generation.
+     * {@link https://cloud.google.com/storage/docs/metadata#generation-number}
+     */
+    generation: string;
+    /**
+     * The object's metageneration.
+     * {@link https://cloud.google.com/storage/docs/metadata#generation-number}
+     */
+    metageneration: string;
+    /**
+     * The short name of this object, which is the last component of the full path.
+     * For example, if fullPath is 'full/path/image.png', name is 'image.png'.
+     */
+    name: string;
+    /**
+     * The size of this object, in bytes.
+     */
+    size: number;
+    /**
+     * A date string representing when this object was created.
+     */
+    timeCreated: string;
+    /**
+     * A date string representing when this object was last updated.
+     */
+    updated: string;
+    /**
+     * Tokens to allow access to the download URL.
+     */
+    downloadTokens: string[] | undefined;
+    /**
+     * `StorageReference` associated with this upload.
+     */
+    ref?: StorageReference | undefined;
+}
+/**
+ * An event that is triggered on a task.
+ * @public
+ */
+export type TaskEvent = 'state_changed';
+/**
+ * Represents the current state of a running upload.
+ * @public
+ */
+export type TaskState = 'running' | 'paused' | 'success' | 'canceled' | 'error';
+/**
+ * A stream observer for Firebase Storage.
+ * @public
+ */
+export interface StorageObserver<T> {
+    next?: NextFn<T> | null;
+    error?: (error: StorageError) => void | null;
+    complete?: CompleteFn | null;
+}
+/**
+ * Represents the process of uploading an object. Allows you to monitor and
+ * manage the upload.
+ * @public
+ */
+export interface UploadTask {
+    /**
+     * Cancels a running task. Has no effect on a complete or failed task.
+     * @returns True if the cancel had an effect.
+     */
+    cancel(): boolean;
+    /**
+     * Equivalent to calling `then(null, onRejected)`.
+     */
+    catch(onRejected: (error: StorageError) => unknown): Promise<unknown>;
+    /**
+     * Listens for events on this task.
+     *
+     * Events have three callback functions (referred to as `next`, `error`, and
+     * `complete`).
+     *
+     * If only the event is passed, a function that can be used to register the
+     * callbacks is returned. Otherwise, the callbacks are passed after the event.
+     *
+     * Callbacks can be passed either as three separate arguments <em>or</em> as the
+     * `next`, `error`, and `complete` properties of an object. Any of the three
+     * callbacks is optional, as long as at least one is specified. In addition,
+     * when you add your callbacks, you get a function back. You can call this
+     * function to unregister the associated callbacks.
+     *
+     * @example **Pass callbacks separately or in an object.**
+     * ```javascript
+     * var next = function(snapshot) {};
+     * var error = function(error) {};
+     * var complete = function() {};
+     *
+     * // The first example.
+     * uploadTask.on(
+     *     firebase.storage.TaskEvent.STATE_CHANGED,
+     *     next,
+     *     error,
+     *     complete);
+     *
+     * // This is equivalent to the first example.
+     * uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED, {
+     *   'next': next,
+     *   'error': error,
+     *   'complete': complete
+     * });
+     *
+     * // This is equivalent to the first example.
+     * var subscribe = uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED);
+     * subscribe(next, error, complete);
+     *
+     * // This is equivalent to the first example.
+     * var subscribe = uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED);
+     * subscribe({
+     *   'next': next,
+     *   'error': error,
+     *   'complete': complete
+     * });
+     * ```
+     *
+     * @example **Any callback is optional.**
+     * ```javascript
+     * // Just listening for completion, this is legal.
+     * uploadTask.on(
+     *     firebase.storage.TaskEvent.STATE_CHANGED,
+     *     null,
+     *     null,
+     *     function() {
+     *       console.log('upload complete!');
+     *     });
+     *
+     * // Just listening for progress/state changes, this is legal.
+     * uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED, function(snapshot) {
+     *   var percent = snapshot.bytesTransferred / snapshot.totalBytes * 100;
+     *   console.log(percent + "% done");
+     * });
+     *
+     * // This is also legal.
+     * uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED, {
+     *   'complete': function() {
+     *     console.log('upload complete!');
+     *   }
+     * });
+     * ```
+     *
+     * @example **Use the returned function to remove callbacks.**
+     * ```javascript
+     * var unsubscribe = uploadTask.on(
+     *     firebase.storage.TaskEvent.STATE_CHANGED,
+     *     function(snapshot) {
+     *       var percent = snapshot.bytesTransferred / snapshot.totalBytes * 100;
+     *       console.log(percent + "% done");
+     *       // Stop after receiving one update.
+     *       unsubscribe();
+     *     });
+     *
+     * // This code is equivalent to the above.
+     * var handle = uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED);
+     * unsubscribe = handle(function(snapshot) {
+     *   var percent = snapshot.bytesTransferred / snapshot.totalBytes * 100;
+     *   console.log(percent + "% done");
+     *   // Stop after receiving one update.
+     *   unsubscribe();
+     * });
+     * ```
+     *
+     * @param event - The type of event to listen for.
+     * @param nextOrObserver -
+     *     The `next` function, which gets called for each item in
+     *     the event stream, or an observer object with some or all of these three
+     *     properties (`next`, `error`, `complete`).
+     * @param error - A function that gets called with a `StorageError`
+     *     if the event stream ends due to an error.
+     * @param completed - A function that gets called if the
+     *     event stream ends normally.
+     * @returns
+     *     If only the event argument is passed, returns a function you can use to
+     *     add callbacks (see the examples above). If more than just the event
+     *     argument is passed, returns a function you can call to unregister the
+     *     callbacks.
+     */
+    on(event: TaskEvent, nextOrObserver?: StorageObserver<UploadTaskSnapshot> | null | ((snapshot: UploadTaskSnapshot) => unknown), error?: ((a: StorageError) => unknown) | null, complete?: Unsubscribe | null): Unsubscribe | Subscribe<UploadTaskSnapshot>;
+    /**
+     * Pauses a currently running task. Has no effect on a paused or failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    pause(): boolean;
+    /**
+     * Resumes a paused task. Has no effect on a currently running or failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    resume(): boolean;
+    /**
+     * A snapshot of the current task state.
+     */
+    snapshot: UploadTaskSnapshot;
+    /**
+     * This object behaves like a Promise, and resolves with its snapshot data
+     * when the upload completes.
+     * @param onFulfilled - The fulfillment callback. Promise chaining works as normal.
+     * @param onRejected - The rejection callback.
+     */
+    then(onFulfilled?: ((snapshot: UploadTaskSnapshot) => unknown) | null, onRejected?: ((error: StorageError) => unknown) | null): Promise<unknown>;
+}
+/**
+ * Holds data about the current state of the upload task.
+ * @public
+ */
+export interface UploadTaskSnapshot {
+    /**
+     * The number of bytes that have been successfully uploaded so far.
+     */
+    bytesTransferred: number;
+    /**
+     * Before the upload completes, contains the metadata sent to the server.
+     * After the upload completes, contains the metadata sent back from the server.
+     */
+    metadata: FullMetadata;
+    /**
+     * The reference that spawned this snapshot's upload task.
+     */
+    ref: StorageReference;
+    /**
+     * The current state of the task.
+     */
+    state: TaskState;
+    /**
+     * The task of which this is a snapshot.
+     */
+    task: UploadTask;
+    /**
+     * The total number of bytes to be uploaded.
+     */
+    totalBytes: number;
+}
+/**
+ * Result returned from a non-resumable upload.
+ * @public
+ */
+export interface UploadResult {
+    /**
+     * Contains the metadata sent back from the server.
+     */
+    readonly metadata: FullMetadata;
+    /**
+     * The reference that spawned this upload.
+     */
+    readonly ref: StorageReference;
+}
+declare module '@firebase/component' {
+    interface NameServiceMapping {
+        'storage': FirebaseStorage;
+    }
+}
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/reference.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/reference.d.ts
new file mode 100644
index 0000000..68e93d7
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/reference.d.ts
@@ -0,0 +1,208 @@
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { Location } from './implementation/location';
+import { ListOptions, UploadResult } from './public-types';
+import { StringFormat } from './implementation/string';
+import { Metadata } from './metadata';
+import { FirebaseStorageImpl } from './service';
+import { ListResult } from './list';
+import { UploadTask } from './task';
+/**
+ * Provides methods to interact with a bucket in the Firebase Storage service.
+ * @internal
+ * @param _location - An fbs.location, or the URL at
+ *     which to base this object, in one of the following forms:
+ *         gs://<bucket>/<object-path>
+ *         http[s]://firebasestorage.googleapis.com/
+ *                     <api-version>/b/<bucket>/o/<object-path>
+ *     Any query or fragment strings will be ignored in the http[s]
+ *     format. If no value is passed, the storage object will use a URL based on
+ *     the project ID of the base firebase.App instance.
+ */
+export declare class Reference {
+    private _service;
+    _location: Location;
+    constructor(_service: FirebaseStorageImpl, location: string | Location);
+    /**
+     * Returns the URL for the bucket and path this object references,
+     *     in the form gs://<bucket>/<object-path>
+     * @override
+     */
+    toString(): string;
+    protected _newRef(service: FirebaseStorageImpl, location: Location): Reference;
+    /**
+     * A reference to the root of this object's bucket.
+     */
+    get root(): Reference;
+    /**
+     * The name of the bucket containing this reference's object.
+     */
+    get bucket(): string;
+    /**
+     * The full path of this object.
+     */
+    get fullPath(): string;
+    /**
+     * The short name of this object, which is the last component of the full path.
+     * For example, if fullPath is 'full/path/image.png', name is 'image.png'.
+     */
+    get name(): string;
+    /**
+     * The `StorageService` instance this `StorageReference` is associated with.
+     */
+    get storage(): FirebaseStorageImpl;
+    /**
+     * A `StorageReference` pointing to the parent location of this `StorageReference`, or null if
+     * this reference is the root.
+     */
+    get parent(): Reference | null;
+    /**
+     * Utility function to throw an error in methods that do not accept a root reference.
+     */
+    _throwIfRoot(name: string): void;
+}
+/**
+ * Download the bytes at the object's location.
+ * @returns A Promise containing the downloaded bytes.
+ */
+export declare function getBytesInternal(ref: Reference, maxDownloadSizeBytes?: number): Promise<ArrayBuffer>;
+/**
+ * Download the bytes at the object's location.
+ * @returns A Promise containing the downloaded blob.
+ */
+export declare function getBlobInternal(ref: Reference, maxDownloadSizeBytes?: number): Promise<Blob>;
+/** Stream the bytes at the object's location. */
+export declare function getStreamInternal(ref: Reference, maxDownloadSizeBytes?: number): ReadableStream;
+/**
+ * Uploads data to this object's location.
+ * The upload is not resumable.
+ *
+ * @param ref - StorageReference where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the newly uploaded data.
+ * @returns A Promise containing an UploadResult
+ */
+export declare function uploadBytes(ref: Reference, data: Blob | Uint8Array | ArrayBuffer, metadata?: Metadata): Promise<UploadResult>;
+/**
+ * Uploads data to this object's location.
+ * The upload can be paused and resumed, and exposes progress updates.
+ * @public
+ * @param ref - StorageReference where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the newly uploaded data.
+ * @returns An UploadTask
+ */
+export declare function uploadBytesResumable(ref: Reference, data: Blob | Uint8Array | ArrayBuffer, metadata?: Metadata): UploadTask;
+/**
+ * Uploads a string to this object's location.
+ * The upload is not resumable.
+ * @public
+ * @param ref - StorageReference where string should be uploaded.
+ * @param value - The string to upload.
+ * @param format - The format of the string to upload.
+ * @param metadata - Metadata for the newly uploaded string.
+ * @returns A Promise containing an UploadResult
+ */
+export declare function uploadString(ref: Reference, value: string, format?: StringFormat, metadata?: Metadata): Promise<UploadResult>;
+/**
+ * List all items (files) and prefixes (folders) under this storage reference.
+ *
+ * This is a helper method for calling list() repeatedly until there are
+ * no more results. The default pagination size is 1000.
+ *
+ * Note: The results may not be consistent if objects are changed while this
+ * operation is running.
+ *
+ * Warning: listAll may potentially consume too many resources if there are
+ * too many results.
+ * @public
+ * @param ref - StorageReference to get list from.
+ *
+ * @returns A Promise that resolves with all the items and prefixes under
+ *      the current storage reference. `prefixes` contains references to
+ *      sub-directories and `items` contains references to objects in this
+ *      folder. `nextPageToken` is never returned.
+ */
+export declare function listAll(ref: Reference): Promise<ListResult>;
+/**
+ * List items (files) and prefixes (folders) under this storage reference.
+ *
+ * List API is only available for Firebase Rules Version 2.
+ *
+ * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'
+ * delimited folder structure.
+ * Refer to GCS's List API if you want to learn more.
+ *
+ * To adhere to Firebase Rules's Semantics, Firebase Storage does not
+ * support objects whose paths end with "/" or contain two consecutive
+ * "/"s. Firebase Storage List API will filter these unsupported objects.
+ * list() may fail if there are too many unsupported objects in the bucket.
+ * @public
+ *
+ * @param ref - StorageReference to get list from.
+ * @param options - See ListOptions for details.
+ * @returns A Promise that resolves with the items and prefixes.
+ *      `prefixes` contains references to sub-folders and `items`
+ *      contains references to objects in this folder. `nextPageToken`
+ *      can be used to get the rest of the results.
+ */
+export declare function list(ref: Reference, options?: ListOptions | null): Promise<ListResult>;
+/**
+ * A `Promise` that resolves with the metadata for this object. If this
+ * object doesn't exist or metadata cannot be retrieved, the promise is
+ * rejected.
+ * @public
+ * @param ref - StorageReference to get metadata from.
+ */
+export declare function getMetadata(ref: Reference): Promise<Metadata>;
+/**
+ * Updates the metadata for this object.
+ * @public
+ * @param ref - StorageReference to update metadata for.
+ * @param metadata - The new metadata for the object.
+ *     Only values that have been explicitly set will be changed. Explicitly
+ *     setting a value to null will remove the metadata.
+ * @returns A `Promise` that resolves
+ *     with the new metadata for this object.
+ *     See `firebaseStorage.Reference.prototype.getMetadata`
+ */
+export declare function updateMetadata(ref: Reference, metadata: Partial<Metadata>): Promise<Metadata>;
+/**
+ * Returns the download URL for the given Reference.
+ * @public
+ * @returns A `Promise` that resolves with the download
+ *     URL for this object.
+ */
+export declare function getDownloadURL(ref: Reference): Promise<string>;
+/**
+ * Deletes the object at this location.
+ * @public
+ * @param ref - StorageReference for object to delete.
+ * @returns A `Promise` that resolves if the deletion succeeds.
+ */
+export declare function deleteObject(ref: Reference): Promise<void>;
+/**
+ * Returns reference for object obtained by appending `childPath` to `ref`.
+ *
+ * @param ref - StorageReference to get child of.
+ * @param childPath - Child path from provided ref.
+ * @returns A reference to the object obtained by
+ * appending childPath, removing any duplicate, beginning, or trailing
+ * slashes.
+ *
+ */
+export declare function _getChild(ref: Reference, childPath: string): Reference;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/service.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/service.d.ts
new file mode 100644
index 0000000..5dd6bb0
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/service.d.ts
@@ -0,0 +1,131 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { Location } from './implementation/location';
+import { Request } from './implementation/request';
+import { RequestInfo } from './implementation/requestinfo';
+import { Reference } from './reference';
+import { Provider } from '@firebase/component';
+import { FirebaseAuthInternalName } from '@firebase/auth-interop-types';
+import { AppCheckInternalComponentName } from '@firebase/app-check-interop-types';
+import { FirebaseApp } from '@firebase/app';
+import { FirebaseStorage } from './public-types';
+import { EmulatorMockTokenOptions } from '@firebase/util';
+import { Connection, ConnectionType } from './implementation/connection';
+export declare function isUrl(path?: string): boolean;
+/**
+ * Returns a storage Reference for the given url.
+ * @param storage - `Storage` instance.
+ * @param url - URL. If empty, returns root reference.
+ * @public
+ */
+export declare function ref(storage: FirebaseStorageImpl, url?: string): Reference;
+/**
+ * Returns a storage Reference for the given path in the
+ * default bucket.
+ * @param storageOrRef - `Storage` service or storage `Reference`.
+ * @param pathOrUrlStorage - path. If empty, returns root reference (if Storage
+ * instance provided) or returns same reference (if Reference provided).
+ * @public
+ */
+export declare function ref(storageOrRef: FirebaseStorageImpl | Reference, path?: string): Reference;
+export declare function connectStorageEmulator(storage: FirebaseStorageImpl, host: string, port: number, options?: {
+    mockUserToken?: EmulatorMockTokenOptions | string;
+}): void;
+/**
+ * A service that provides Firebase Storage Reference instances.
+ * @param opt_url - gs:// url to a custom Storage Bucket
+ *
+ * @internal
+ */
+export declare class FirebaseStorageImpl implements FirebaseStorage {
+    /**
+     * FirebaseApp associated with this StorageService instance.
+     */
+    readonly app: FirebaseApp;
+    readonly _authProvider: Provider<FirebaseAuthInternalName>;
+    /**
+     * @internal
+     */
+    readonly _appCheckProvider: Provider<AppCheckInternalComponentName>;
+    /**
+     * @internal
+     */
+    readonly _url?: string | undefined;
+    readonly _firebaseVersion?: string | undefined;
+    _isUsingEmulator: boolean;
+    _bucket: Location | null;
+    /**
+     * This string can be in the formats:
+     * - host
+     * - host:port
+     */
+    private _host;
+    _protocol: string;
+    protected readonly _appId: string | null;
+    private readonly _requests;
+    private _deleted;
+    private _maxOperationRetryTime;
+    private _maxUploadRetryTime;
+    _overrideAuthToken?: string;
+    constructor(
+    /**
+     * FirebaseApp associated with this StorageService instance.
+     */
+    app: FirebaseApp, _authProvider: Provider<FirebaseAuthInternalName>, 
+    /**
+     * @internal
+     */
+    _appCheckProvider: Provider<AppCheckInternalComponentName>, 
+    /**
+     * @internal
+     */
+    _url?: string | undefined, _firebaseVersion?: string | undefined, _isUsingEmulator?: boolean);
+    /**
+     * The host string for this service, in the form of `host` or
+     * `host:port`.
+     */
+    get host(): string;
+    set host(host: string);
+    /**
+     * The maximum time to retry uploads in milliseconds.
+     */
+    get maxUploadRetryTime(): number;
+    set maxUploadRetryTime(time: number);
+    /**
+     * The maximum time to retry operations other than uploads or downloads in
+     * milliseconds.
+     */
+    get maxOperationRetryTime(): number;
+    set maxOperationRetryTime(time: number);
+    _getAuthToken(): Promise<string | null>;
+    _getAppCheckToken(): Promise<string | null>;
+    /**
+     * Stop running requests and prevent more from being created.
+     */
+    _delete(): Promise<void>;
+    /**
+     * Returns a new firebaseStorage.Reference object referencing this StorageService
+     * at the given Location.
+     */
+    _makeStorageReference(loc: Location): Reference;
+    /**
+     * @param requestInfo - HTTP RequestInfo object
+     * @param authToken - Firebase auth token
+     */
+    _makeRequest<I extends ConnectionType, O>(requestInfo: RequestInfo<I, O>, requestFactory: () => Connection<I>, authToken: string | null, appCheckToken: string | null, retry?: boolean): Request<O>;
+    makeRequestWithTokens<I extends ConnectionType, O>(requestInfo: RequestInfo<I, O>, requestFactory: () => Connection<I>): Promise<O>;
+}
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/task.d.ts b/frontend-old/node_modules/@firebase/storage/dist/src/task.d.ts
new file mode 100644
index 0000000..19afdfd
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/task.d.ts
@@ -0,0 +1,148 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Defines types for interacting with blob transfer tasks.
+ */
+import { FbsBlob } from './implementation/blob';
+import { StorageError } from './implementation/error';
+import { InternalTaskState, TaskEvent } from './implementation/taskenums';
+import { Metadata } from './metadata';
+import { Subscribe, Unsubscribe } from './implementation/observer';
+import { UploadTaskSnapshot, StorageObserver } from './public-types';
+import { Reference } from './reference';
+import { CompleteFn } from '@firebase/util';
+/**
+ * Represents a blob being uploaded. Can be used to pause/resume/cancel the
+ * upload and manage callbacks for various events.
+ * @internal
+ */
+export declare class UploadTask {
+    private _ref;
+    /**
+     * The data to be uploaded.
+     */
+    _blob: FbsBlob;
+    /**
+     * Metadata related to the upload.
+     */
+    _metadata: Metadata | null;
+    private _mappings;
+    /**
+     * Number of bytes transferred so far.
+     */
+    _transferred: number;
+    private _needToFetchStatus;
+    private _needToFetchMetadata;
+    private _observers;
+    private _resumable;
+    /**
+     * Upload state.
+     */
+    _state: InternalTaskState;
+    private _error?;
+    private _uploadUrl?;
+    private _request?;
+    private _chunkMultiplier;
+    private _errorHandler;
+    private _metadataErrorHandler;
+    private _resolve?;
+    private _reject?;
+    private pendingTimeout?;
+    private _promise;
+    private sleepTime;
+    private maxSleepTime;
+    isExponentialBackoffExpired(): boolean;
+    /**
+     * @param ref - The firebaseStorage.Reference object this task came
+     *     from, untyped to avoid cyclic dependencies.
+     * @param blob - The blob to upload.
+     */
+    constructor(ref: Reference, blob: FbsBlob, metadata?: Metadata | null);
+    private _makeProgressCallback;
+    private _shouldDoResumable;
+    private _start;
+    private _resolveToken;
+    private _createResumable;
+    private _fetchStatus;
+    private _continueUpload;
+    private _increaseMultiplier;
+    private _fetchMetadata;
+    private _oneShotUpload;
+    private _updateProgress;
+    private _transition;
+    private completeTransitions_;
+    /**
+     * A snapshot of the current task state.
+     */
+    get snapshot(): UploadTaskSnapshot;
+    /**
+     * Adds a callback for an event.
+     * @param type - The type of event to listen for.
+     * @param nextOrObserver -
+     *     The `next` function, which gets called for each item in
+     *     the event stream, or an observer object with some or all of these three
+     *     properties (`next`, `error`, `complete`).
+     * @param error - A function that gets called with a `StorageError`
+     *     if the event stream ends due to an error.
+     * @param completed - A function that gets called if the
+     *     event stream ends normally.
+     * @returns
+     *     If only the event argument is passed, returns a function you can use to
+     *     add callbacks (see the examples above). If more than just the event
+     *     argument is passed, returns a function you can call to unregister the
+     *     callbacks.
+     */
+    on(type: TaskEvent, nextOrObserver?: StorageObserver<UploadTaskSnapshot> | null | ((snapshot: UploadTaskSnapshot) => unknown), error?: ((a: StorageError) => unknown) | null, completed?: CompleteFn | null): Unsubscribe | Subscribe<UploadTaskSnapshot>;
+    /**
+     * This object behaves like a Promise, and resolves with its snapshot data
+     * when the upload completes.
+     * @param onFulfilled - The fulfillment callback. Promise chaining works as normal.
+     * @param onRejected - The rejection callback.
+     */
+    then<U>(onFulfilled?: ((value: UploadTaskSnapshot) => U | Promise<U>) | null, onRejected?: ((error: StorageError) => U | Promise<U>) | null): Promise<U>;
+    /**
+     * Equivalent to calling `then(null, onRejected)`.
+     */
+    catch<T>(onRejected: (p1: StorageError) => T | Promise<T>): Promise<T>;
+    /**
+     * Adds the given observer.
+     */
+    private _addObserver;
+    /**
+     * Removes the given observer.
+     */
+    private _removeObserver;
+    private _notifyObservers;
+    private _finishPromise;
+    private _notifyObserver;
+    /**
+     * Resumes a paused task. Has no effect on a currently running or failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    resume(): boolean;
+    /**
+     * Pauses a currently running task. Has no effect on a paused or failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    pause(): boolean;
+    /**
+     * Cancels a currently running or paused task. Has no effect on a complete or
+     * failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    cancel(): boolean;
+}
diff --git a/frontend-old/node_modules/@firebase/storage/dist/src/tsdoc-metadata.json b/frontend-old/node_modules/@firebase/storage/dist/src/tsdoc-metadata.json
new file mode 100644
index 0000000..6af1f6a
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/src/tsdoc-metadata.json
@@ -0,0 +1,11 @@
+// This file is read by tools that parse documentation comments conforming to the TSDoc standard.
+// It should be published with your NPM package.  It should not be tracked by Git.
+{
+  "tsdocVersion": "0.12",
+  "toolPackages": [
+    {
+      "packageName": "@microsoft/api-extractor",
+      "packageVersion": "0.1.2"
+    }
+  ]
+}
diff --git a/frontend-old/node_modules/@firebase/storage/dist/storage-public.d.ts b/frontend-old/node_modules/@firebase/storage/dist/storage-public.d.ts
new file mode 100644
index 0000000..83d657b
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/storage-public.d.ts
@@ -0,0 +1,725 @@
+/**
+ * Cloud Storage for Firebase
+ *
+ * @packageDocumentation
+ */
+import { CompleteFn , EmulatorMockTokenOptions , FirebaseError , NextFn , Subscribe , Unsubscribe } from '@firebase/util';
+import { FirebaseApp } from '@firebase/app';
+/**
+ * Modify this {@link FirebaseStorage} instance to communicate with the Cloud Storage emulator.
+ *
+ * @param storage - The {@link FirebaseStorage} instance
+ * @param host - The emulator host (ex: localhost)
+ * @param port - The emulator port (ex: 5001)
+ * @param options - Emulator options. `options.mockUserToken` is the mock auth
+ * token to use for unit testing Security Rules.
+ * @public
+ */
+export declare function connectStorageEmulator(storage: FirebaseStorage, host: string, port: number, options?: {
+    mockUserToken?: EmulatorMockTokenOptions | string;
+}): void;
+/* Excluded from this release type: _dataFromString */
+/**
+ * Deletes the object at this location.
+ * @public
+ * @param ref - {@link StorageReference} for object to delete.
+ * @returns A `Promise` that resolves if the deletion succeeds.
+ */
+export declare function deleteObject(ref: StorageReference): Promise<void>;
+export { EmulatorMockTokenOptions };
+/* Excluded from this release type: _FbsBlob */
+/* Excluded from this release type: _FirebaseService */
+/**
+ * A Firebase Storage instance.
+ * @public
+ */
+export declare interface FirebaseStorage {
+    /**
+     * The {@link @firebase/app#FirebaseApp} associated with this `FirebaseStorage` instance.
+     */
+    readonly app: FirebaseApp;
+    /**
+     * The maximum time to retry uploads in milliseconds.
+     */
+    maxUploadRetryTime: number;
+    /**
+     * The maximum time to retry operations other than uploads or downloads in
+     * milliseconds.
+     */
+    maxOperationRetryTime: number;
+}
+/* Excluded from this release type: _FirebaseStorageImpl */
+/**
+ * The full set of object metadata, including read-only properties.
+ * @public
+ */
+export declare interface FullMetadata extends UploadMetadata {
+    /**
+     * The bucket this object is contained in.
+     */
+    bucket: string;
+    /**
+     * The full path of this object.
+     */
+    fullPath: string;
+    /**
+     * The object's generation.
+     * {@link https://cloud.google.com/storage/docs/metadata#generation-number}
+     */
+    generation: string;
+    /**
+     * The object's metageneration.
+     * {@link https://cloud.google.com/storage/docs/metadata#generation-number}
+     */
+    metageneration: string;
+    /**
+     * The short name of this object, which is the last component of the full path.
+     * For example, if fullPath is 'full/path/image.png', name is 'image.png'.
+     */
+    name: string;
+    /**
+     * The size of this object, in bytes.
+     */
+    size: number;
+    /**
+     * A date string representing when this object was created.
+     */
+    timeCreated: string;
+    /**
+     * A date string representing when this object was last updated.
+     */
+    updated: string;
+    /**
+     * Tokens to allow access to the download URL.
+     */
+    downloadTokens: string[] | undefined;
+    /**
+     * `StorageReference` associated with this upload.
+     */
+    ref?: StorageReference | undefined;
+}
+/**
+ * Downloads the data at the object's location. Returns an error if the object
+ * is not found.
+ *
+ * To use this functionality, you have to whitelist your app's origin in your
+ * Cloud Storage bucket. See also
+ * https://cloud.google.com/storage/docs/configuring-cors
+ *
+ * This API is not available in Node.
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A Promise that resolves with a Blob containing the object's bytes
+ */
+export declare function getBlob(ref: StorageReference, maxDownloadSizeBytes?: number): Promise<Blob>;
+/**
+ * Downloads the data at the object's location. Returns an error if the object
+ * is not found.
+ *
+ * To use this functionality, you have to whitelist your app's origin in your
+ * Cloud Storage bucket. See also
+ * https://cloud.google.com/storage/docs/configuring-cors
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A Promise containing the object's bytes
+ */
+export declare function getBytes(ref: StorageReference, maxDownloadSizeBytes?: number): Promise<ArrayBuffer>;
+/* Excluded from this release type: _getChild */
+/**
+ * Returns the download URL for the given {@link StorageReference}.
+ * @public
+ * @param ref - {@link StorageReference} to get the download URL for.
+ * @returns A `Promise` that resolves with the download
+ *     URL for this object.
+ */
+export declare function getDownloadURL(ref: StorageReference): Promise<string>;
+/**
+ * A `Promise` that resolves with the metadata for this object. If this
+ * object doesn't exist or metadata cannot be retrieved, the promise is
+ * rejected.
+ * @public
+ * @param ref - {@link StorageReference} to get metadata from.
+ */
+export declare function getMetadata(ref: StorageReference): Promise<FullMetadata>;
+/**
+ * Gets a {@link FirebaseStorage} instance for the given Firebase app.
+ * @public
+ * @param app - Firebase app to get {@link FirebaseStorage} instance for.
+ * @param bucketUrl - The gs:// url to your Firebase Storage Bucket.
+ * If not passed, uses the app's default Storage Bucket.
+ * @returns A {@link FirebaseStorage} instance.
+ */
+export declare function getStorage(app?: FirebaseApp, bucketUrl?: string): FirebaseStorage;
+/**
+ * Downloads the data at the object's location. Raises an error event if the
+ * object is not found.
+ *
+ * This API is only available in Node.
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A stream with the object's data as bytes
+ */
+export declare function getStream(ref: StorageReference, maxDownloadSizeBytes?: number): ReadableStream;
+/* Excluded from this release type: _invalidArgument */
+/* Excluded from this release type: _invalidRootOperation */
+/**
+ * List items (files) and prefixes (folders) under this storage reference.
+ *
+ * List API is only available for Firebase Rules Version 2.
+ *
+ * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'
+ * delimited folder structure.
+ * Refer to GCS's List API if you want to learn more.
+ *
+ * To adhere to Firebase Rules's Semantics, Firebase Storage does not
+ * support objects whose paths end with "/" or contain two consecutive
+ * "/"s. Firebase Storage List API will filter these unsupported objects.
+ * list() may fail if there are too many unsupported objects in the bucket.
+ * @public
+ *
+ * @param ref - {@link StorageReference} to get list from.
+ * @param options - See {@link ListOptions} for details.
+ * @returns A `Promise` that resolves with the items and prefixes.
+ *      `prefixes` contains references to sub-folders and `items`
+ *      contains references to objects in this folder. `nextPageToken`
+ *      can be used to get the rest of the results.
+ */
+export declare function list(ref: StorageReference, options?: ListOptions): Promise<ListResult>;
+/**
+ * List all items (files) and prefixes (folders) under this storage reference.
+ *
+ * This is a helper method for calling list() repeatedly until there are
+ * no more results. The default pagination size is 1000.
+ *
+ * Note: The results may not be consistent if objects are changed while this
+ * operation is running.
+ *
+ * Warning: `listAll` may potentially consume too many resources if there are
+ * too many results.
+ * @public
+ * @param ref - {@link StorageReference} to get list from.
+ *
+ * @returns A `Promise` that resolves with all the items and prefixes under
+ *      the current storage reference. `prefixes` contains references to
+ *      sub-directories and `items` contains references to objects in this
+ *      folder. `nextPageToken` is never returned.
+ */
+export declare function listAll(ref: StorageReference): Promise<ListResult>;
+/**
+ * The options `list()` accepts.
+ * @public
+ */
+export declare interface ListOptions {
+    /**
+     * If set, limits the total number of `prefixes` and `items` to return.
+     * The default and maximum maxResults is 1000.
+     */
+    maxResults?: number | null;
+    /**
+     * The `nextPageToken` from a previous call to `list()`. If provided,
+     * listing is resumed from the previous position.
+     */
+    pageToken?: string | null;
+}
+/**
+ * Result returned by list().
+ * @public
+ */
+export declare interface ListResult {
+    /**
+     * References to prefixes (sub-folders). You can call list() on them to
+     * get its contents.
+     *
+     * Folders are implicit based on '/' in the object paths.
+     * For example, if a bucket has two objects '/a/b/1' and '/a/b/2', list('/a')
+     * will return '/a/b' as a prefix.
+     */
+    prefixes: StorageReference[];
+    /**
+     * Objects in this directory.
+     * You can call getMetadata() and getDownloadUrl() on them.
+     */
+    items: StorageReference[];
+    /**
+     * If set, there might be more results for this list. Use this token to resume the list.
+     */
+    nextPageToken?: string;
+}
+/**
+ * Returns a {@link StorageReference} for the given url.
+ * @param storage - {@link FirebaseStorage} instance.
+ * @param url - URL. If empty, returns root reference.
+ * @public
+ */
+export declare function ref(storage: FirebaseStorage, url?: string): StorageReference;
+/**
+ * Returns a {@link StorageReference} for the given path in the
+ * default bucket.
+ * @param storageOrRef - {@link FirebaseStorage} or {@link StorageReference}.
+ * @param pathOrUrlStorage - path. If empty, returns root reference (if {@link FirebaseStorage}
+ * instance provided) or returns same reference (if {@link StorageReference} provided).
+ * @public
+ */
+export declare function ref(storageOrRef: FirebaseStorage | StorageReference, path?: string): StorageReference;
+/**
+ * Object metadata that can be set at any time.
+ * @public
+ */
+export declare interface SettableMetadata {
+    /**
+     * Served as the 'Cache-Control' header on object download.
+     */
+    cacheControl?: string | undefined;
+    /**
+     * Served as the 'Content-Disposition' header on object download.
+     */
+    contentDisposition?: string | undefined;
+    /**
+     * Served as the 'Content-Encoding' header on object download.
+     */
+    contentEncoding?: string | undefined;
+    /**
+     * Served as the 'Content-Language' header on object download.
+     */
+    contentLanguage?: string | undefined;
+    /**
+     * Served as the 'Content-Type' header on object download.
+     */
+    contentType?: string | undefined;
+    /**
+     * Additional user-defined custom metadata.
+     */
+    customMetadata?: {
+        [key: string]: string;
+    } | undefined;
+}
+/**
+ * An error returned by the Firebase Storage SDK.
+ * @public
+ */
+export declare class StorageError extends FirebaseError {
+    private status_;
+    /**
+     * Stores custom error data unique to the `StorageError`.
+     */
+    customData: {
+        serverResponse: string | null;
+    };
+    /**
+     * @param code - A `StorageErrorCode` string to be prefixed with 'storage/' and
+     *  added to the end of the message.
+     * @param message  - Error message.
+     * @param status_ - Corresponding HTTP Status Code
+     */
+    constructor(code: StorageErrorCode, message: string, status_?: number);
+    get status(): number;
+    set status(status: number);
+    /**
+     * Optional response message that was added by the server.
+     */
+    get serverResponse(): null | string;
+    set serverResponse(serverResponse: string | null);
+}
+/**
+ * @public
+ * Error codes that can be attached to `StorageError` objects.
+ */
+export declare enum StorageErrorCode {
+    UNKNOWN = "unknown",
+    OBJECT_NOT_FOUND = "object-not-found",
+    BUCKET_NOT_FOUND = "bucket-not-found",
+    PROJECT_NOT_FOUND = "project-not-found",
+    QUOTA_EXCEEDED = "quota-exceeded",
+    UNAUTHENTICATED = "unauthenticated",
+    UNAUTHORIZED = "unauthorized",
+    UNAUTHORIZED_APP = "unauthorized-app",
+    RETRY_LIMIT_EXCEEDED = "retry-limit-exceeded",
+    INVALID_CHECKSUM = "invalid-checksum",
+    CANCELED = "canceled",
+    INVALID_EVENT_NAME = "invalid-event-name",
+    INVALID_URL = "invalid-url",
+    INVALID_DEFAULT_BUCKET = "invalid-default-bucket",
+    NO_DEFAULT_BUCKET = "no-default-bucket",
+    CANNOT_SLICE_BLOB = "cannot-slice-blob",
+    SERVER_FILE_WRONG_SIZE = "server-file-wrong-size",
+    NO_DOWNLOAD_URL = "no-download-url",
+    INVALID_ARGUMENT = "invalid-argument",
+    INVALID_ARGUMENT_COUNT = "invalid-argument-count",
+    APP_DELETED = "app-deleted",
+    INVALID_ROOT_OPERATION = "invalid-root-operation",
+    INVALID_FORMAT = "invalid-format",
+    INTERNAL_ERROR = "internal-error",
+    UNSUPPORTED_ENVIRONMENT = "unsupported-environment"
+}
+/**
+ * A stream observer for Firebase Storage.
+ * @public
+ */
+export declare interface StorageObserver<T> {
+    next?: NextFn<T> | null;
+    error?: (error: StorageError) => void | null;
+    complete?: CompleteFn | null;
+}
+/**
+ * Represents a reference to a Google Cloud Storage object. Developers can
+ * upload, download, and delete objects, as well as get/set object metadata.
+ * @public
+ */
+export declare interface StorageReference {
+    /**
+     * Returns a gs:// URL for this object in the form
+     *   `gs://<bucket>/<path>/<to>/<object>`
+     * @returns The gs:// URL.
+     */
+    toString(): string;
+    /**
+     * A reference to the root of this object's bucket.
+     */
+    root: StorageReference;
+    /**
+     * The name of the bucket containing this reference's object.
+     */
+    bucket: string;
+    /**
+     * The full path of this object.
+     */
+    fullPath: string;
+    /**
+     * The short name of this object, which is the last component of the full path.
+     * For example, if fullPath is 'full/path/image.png', name is 'image.png'.
+     */
+    name: string;
+    /**
+     * The {@link FirebaseStorage} instance associated with this reference.
+     */
+    storage: FirebaseStorage;
+    /**
+     * A reference pointing to the parent location of this reference, or null if
+     * this reference is the root.
+     */
+    parent: StorageReference | null;
+}
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * An enumeration of the possible string formats for upload.
+ * @public
+ */
+export declare type StringFormat = (typeof StringFormat)[keyof typeof StringFormat];
+/**
+ * An enumeration of the possible string formats for upload.
+ * @public
+ */
+export declare const StringFormat: {
+    /**
+     * Indicates the string should be interpreted "raw", that is, as normal text.
+     * The string will be interpreted as UTF-16, then uploaded as a UTF-8 byte
+     * sequence.
+     * Example: The string 'Hello! \\ud83d\\ude0a' becomes the byte sequence
+     * 48 65 6c 6c 6f 21 20 f0 9f 98 8a
+     */
+    readonly RAW: "raw";
+    /**
+     * Indicates the string should be interpreted as base64-encoded data.
+     * Padding characters (trailing '='s) are optional.
+     * Example: The string 'rWmO++E6t7/rlw==' becomes the byte sequence
+     * ad 69 8e fb e1 3a b7 bf eb 97
+     */
+    readonly BASE64: "base64";
+    /**
+     * Indicates the string should be interpreted as base64url-encoded data.
+     * Padding characters (trailing '='s) are optional.
+     * Example: The string 'rWmO--E6t7_rlw==' becomes the byte sequence
+     * ad 69 8e fb e1 3a b7 bf eb 97
+     */
+    readonly BASE64URL: "base64url";
+    /**
+     * Indicates the string is a data URL, such as one obtained from
+     * canvas.toDataURL().
+     * Example: the string 'data:application/octet-stream;base64,aaaa'
+     * becomes the byte sequence
+     * 69 a6 9a
+     * (the content-type "application/octet-stream" is also applied, but can
+     * be overridden in the metadata object).
+     */
+    readonly DATA_URL: "data_url";
+};
+/**
+ * An event that is triggered on a task.
+ * @public
+ */
+export declare type TaskEvent = 'state_changed';
+/* Excluded from this release type: _TaskEvent */
+/**
+ * Represents the current state of a running upload.
+ * @public
+ */
+export declare type TaskState = 'running' | 'paused' | 'success' | 'canceled' | 'error';
+/**
+ * Updates the metadata for this object.
+ * @public
+ * @param ref - {@link StorageReference} to update metadata for.
+ * @param metadata - The new metadata for the object.
+ *     Only values that have been explicitly set will be changed. Explicitly
+ *     setting a value to null will remove the metadata.
+ * @returns A `Promise` that resolves with the new metadata for this object.
+ */
+export declare function updateMetadata(ref: StorageReference, metadata: SettableMetadata): Promise<FullMetadata>;
+/**
+ * Uploads data to this object's location.
+ * The upload is not resumable.
+ * @public
+ * @param ref - {@link StorageReference} where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the data to upload.
+ * @returns A Promise containing an UploadResult
+ */
+export declare function uploadBytes(ref: StorageReference, data: Blob | Uint8Array | ArrayBuffer, metadata?: UploadMetadata): Promise<UploadResult>;
+/**
+ * Uploads data to this object's location.
+ * The upload can be paused and resumed, and exposes progress updates.
+ * @public
+ * @param ref - {@link StorageReference} where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the data to upload.
+ * @returns An UploadTask
+ */
+export declare function uploadBytesResumable(ref: StorageReference, data: Blob | Uint8Array | ArrayBuffer, metadata?: UploadMetadata): UploadTask;
+/**
+ * Object metadata that can be set at upload.
+ * @public
+ */
+export declare interface UploadMetadata extends SettableMetadata {
+    /**
+     * A Base64-encoded MD5 hash of the object being uploaded.
+     */
+    md5Hash?: string | undefined;
+}
+/**
+ * Result returned from a non-resumable upload.
+ * @public
+ */
+export declare interface UploadResult {
+    /**
+     * Contains the metadata sent back from the server.
+     */
+    readonly metadata: FullMetadata;
+    /**
+     * The reference that spawned this upload.
+     */
+    readonly ref: StorageReference;
+}
+/**
+ * Uploads a string to this object's location.
+ * The upload is not resumable.
+ * @public
+ * @param ref - {@link StorageReference} where string should be uploaded.
+ * @param value - The string to upload.
+ * @param format - The format of the string to upload.
+ * @param metadata - Metadata for the string to upload.
+ * @returns A Promise containing an UploadResult
+ */
+export declare function uploadString(ref: StorageReference, value: string, format?: StringFormat, metadata?: UploadMetadata): Promise<UploadResult>;
+/**
+ * Represents the process of uploading an object. Allows you to monitor and
+ * manage the upload.
+ * @public
+ */
+export declare interface UploadTask {
+    /**
+     * Cancels a running task. Has no effect on a complete or failed task.
+     * @returns True if the cancel had an effect.
+     */
+    cancel(): boolean;
+    /**
+     * Equivalent to calling `then(null, onRejected)`.
+     */
+    catch(onRejected: (error: StorageError) => unknown): Promise<unknown>;
+    /**
+     * Listens for events on this task.
+     *
+     * Events have three callback functions (referred to as `next`, `error`, and
+     * `complete`).
+     *
+     * If only the event is passed, a function that can be used to register the
+     * callbacks is returned. Otherwise, the callbacks are passed after the event.
+     *
+     * Callbacks can be passed either as three separate arguments <em>or</em> as the
+     * `next`, `error`, and `complete` properties of an object. Any of the three
+     * callbacks is optional, as long as at least one is specified. In addition,
+     * when you add your callbacks, you get a function back. You can call this
+     * function to unregister the associated callbacks.
+     *
+     * @example **Pass callbacks separately or in an object.**
+     * ```javascript
+     * var next = function(snapshot) {};
+     * var error = function(error) {};
+     * var complete = function() {};
+     *
+     * // The first example.
+     * uploadTask.on(
+     *     firebase.storage.TaskEvent.STATE_CHANGED,
+     *     next,
+     *     error,
+     *     complete);
+     *
+     * // This is equivalent to the first example.
+     * uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED, {
+     *   'next': next,
+     *   'error': error,
+     *   'complete': complete
+     * });
+     *
+     * // This is equivalent to the first example.
+     * var subscribe = uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED);
+     * subscribe(next, error, complete);
+     *
+     * // This is equivalent to the first example.
+     * var subscribe = uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED);
+     * subscribe({
+     *   'next': next,
+     *   'error': error,
+     *   'complete': complete
+     * });
+     * ```
+     *
+     * @example **Any callback is optional.**
+     * ```javascript
+     * // Just listening for completion, this is legal.
+     * uploadTask.on(
+     *     firebase.storage.TaskEvent.STATE_CHANGED,
+     *     null,
+     *     null,
+     *     function() {
+     *       console.log('upload complete!');
+     *     });
+     *
+     * // Just listening for progress/state changes, this is legal.
+     * uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED, function(snapshot) {
+     *   var percent = snapshot.bytesTransferred / snapshot.totalBytes * 100;
+     *   console.log(percent + "% done");
+     * });
+     *
+     * // This is also legal.
+     * uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED, {
+     *   'complete': function() {
+     *     console.log('upload complete!');
+     *   }
+     * });
+     * ```
+     *
+     * @example **Use the returned function to remove callbacks.**
+     * ```javascript
+     * var unsubscribe = uploadTask.on(
+     *     firebase.storage.TaskEvent.STATE_CHANGED,
+     *     function(snapshot) {
+     *       var percent = snapshot.bytesTransferred / snapshot.totalBytes * 100;
+     *       console.log(percent + "% done");
+     *       // Stop after receiving one update.
+     *       unsubscribe();
+     *     });
+     *
+     * // This code is equivalent to the above.
+     * var handle = uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED);
+     * unsubscribe = handle(function(snapshot) {
+     *   var percent = snapshot.bytesTransferred / snapshot.totalBytes * 100;
+     *   console.log(percent + "% done");
+     *   // Stop after receiving one update.
+     *   unsubscribe();
+     * });
+     * ```
+     *
+     * @param event - The type of event to listen for.
+     * @param nextOrObserver -
+     *     The `next` function, which gets called for each item in
+     *     the event stream, or an observer object with some or all of these three
+     *     properties (`next`, `error`, `complete`).
+     * @param error - A function that gets called with a `StorageError`
+     *     if the event stream ends due to an error.
+     * @param completed - A function that gets called if the
+     *     event stream ends normally.
+     * @returns
+     *     If only the event argument is passed, returns a function you can use to
+     *     add callbacks (see the examples above). If more than just the event
+     *     argument is passed, returns a function you can call to unregister the
+     *     callbacks.
+     */
+    on(event: TaskEvent, nextOrObserver?: StorageObserver<UploadTaskSnapshot> | null | ((snapshot: UploadTaskSnapshot) => unknown), error?: ((a: StorageError) => unknown) | null, complete?: Unsubscribe | null): Unsubscribe | Subscribe<UploadTaskSnapshot>;
+    /**
+     * Pauses a currently running task. Has no effect on a paused or failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    pause(): boolean;
+    /**
+     * Resumes a paused task. Has no effect on a currently running or failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    resume(): boolean;
+    /**
+     * A snapshot of the current task state.
+     */
+    snapshot: UploadTaskSnapshot;
+    /**
+     * This object behaves like a Promise, and resolves with its snapshot data
+     * when the upload completes.
+     * @param onFulfilled - The fulfillment callback. Promise chaining works as normal.
+     * @param onRejected - The rejection callback.
+     */
+    then(onFulfilled?: ((snapshot: UploadTaskSnapshot) => unknown) | null, onRejected?: ((error: StorageError) => unknown) | null): Promise<unknown>;
+}
+/* Excluded from this release type: _UploadTask */
+/**
+ * Holds data about the current state of the upload task.
+ * @public
+ */
+export declare interface UploadTaskSnapshot {
+    /**
+     * The number of bytes that have been successfully uploaded so far.
+     */
+    bytesTransferred: number;
+    /**
+     * Before the upload completes, contains the metadata sent to the server.
+     * After the upload completes, contains the metadata sent back from the server.
+     */
+    metadata: FullMetadata;
+    /**
+     * The reference that spawned this snapshot's upload task.
+     */
+    ref: StorageReference;
+    /**
+     * The current state of the task.
+     */
+    state: TaskState;
+    /**
+     * The task of which this is a snapshot.
+     */
+    task: UploadTask;
+    /**
+     * The total number of bytes to be uploaded.
+     */
+    totalBytes: number;
+}
+export {};
diff --git a/frontend-old/node_modules/@firebase/storage/dist/storage.d.ts b/frontend-old/node_modules/@firebase/storage/dist/storage.d.ts
new file mode 100644
index 0000000..5cb0f83
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/storage.d.ts
@@ -0,0 +1,1391 @@
+/**
+ * Cloud Storage for Firebase
+ *
+ * @packageDocumentation
+ */
+
+import { AppCheckInternalComponentName } from '@firebase/app-check-interop-types';
+import { CompleteFn } from '@firebase/util';
+import { EmulatorMockTokenOptions } from '@firebase/util';
+import { FirebaseApp } from '@firebase/app';
+import { FirebaseAuthInternalName } from '@firebase/auth-interop-types';
+import { FirebaseError } from '@firebase/util';
+import { _FirebaseService } from '@firebase/app';
+import { NextFn } from '@firebase/util';
+import { Provider } from '@firebase/component';
+import { Subscribe } from '@firebase/util';
+import { Unsubscribe } from '@firebase/util';
+
+/**
+ * A function that is called if the event stream ends normally.
+ */
+declare type CompleteFn_2 = () => void;
+
+/**
+ * A lightweight wrapper around XMLHttpRequest with a
+ * goog.net.XhrIo-like interface.
+ *
+ * You can create a new connection by invoking `newTextConnection()`,
+ * `newBytesConnection()` or `newStreamConnection()`.
+ */
+declare interface Connection<T extends ConnectionType> {
+    /**
+     * Sends a request to the provided URL.
+     *
+     * This method never rejects its promise. In case of encountering an error,
+     * it sets an error code internally which can be accessed by calling
+     * getErrorCode() by callers.
+     */
+    send(url: string, method: string, isUsingEmulator: boolean, body?: ArrayBufferView | Blob | string | null, headers?: Headers_2): Promise<void>;
+    getErrorCode(): ErrorCode;
+    getStatus(): number;
+    getResponse(): T;
+    getErrorText(): string;
+    /**
+     * Abort the request.
+     */
+    abort(): void;
+    getResponseHeader(header: string): string | null;
+    addUploadProgressListener(listener: (p1: ProgressEvent) => void): void;
+    removeUploadProgressListener(listener: (p1: ProgressEvent) => void): void;
+}
+
+/** Response type exposed by the networking APIs. */
+declare type ConnectionType = string | ArrayBuffer | Blob | ReadableStream<Uint8Array>;
+
+/**
+ * Modify this {@link FirebaseStorage} instance to communicate with the Cloud Storage emulator.
+ *
+ * @param storage - The {@link FirebaseStorage} instance
+ * @param host - The emulator host (ex: localhost)
+ * @param port - The emulator port (ex: 5001)
+ * @param options - Emulator options. `options.mockUserToken` is the mock auth
+ * token to use for unit testing Security Rules.
+ * @public
+ */
+export declare function connectStorageEmulator(storage: FirebaseStorage, host: string, port: number, options?: {
+    mockUserToken?: EmulatorMockTokenOptions | string;
+}): void;
+
+/**
+ * @internal
+ */
+export declare function _dataFromString(format: StringFormat, stringData: string): StringData;
+
+/**
+ * Deletes the object at this location.
+ * @public
+ * @param ref - {@link StorageReference} for object to delete.
+ * @returns A `Promise` that resolves if the deletion succeeds.
+ */
+export declare function deleteObject(ref: StorageReference): Promise<void>;
+export { EmulatorMockTokenOptions }
+
+/**
+ * Error codes for requests made by the XhrIo wrapper.
+ */
+declare enum ErrorCode {
+    NO_ERROR = 0,
+    NETWORK_ERROR = 1,
+    ABORT = 2
+}
+
+/**
+ * A function that is called with a `StorageError`
+ * if the event stream ends due to an error.
+ */
+declare type ErrorFn = (error: StorageError) => void;
+
+/** A function to handle an error. */
+declare type ErrorHandler = (connection: Connection<ConnectionType>, response: StorageError) => StorageError;
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @param opt_elideCopy - If true, doesn't copy mutable input data
+ *     (e.g. Uint8Arrays). Pass true only if you know the objects will not be
+ *     modified after this blob's construction.
+ *
+ * @internal
+ */
+export declare class _FbsBlob {
+    private data_;
+    private size_;
+    private type_;
+    constructor(data: Blob | Uint8Array | ArrayBuffer, elideCopy?: boolean);
+    size(): number;
+    type(): string;
+    slice(startByte: number, endByte: number): _FbsBlob | null;
+    static getBlob(...args: Array<string | _FbsBlob>): _FbsBlob | null;
+    uploadData(): Blob | Uint8Array;
+}
+
+/**
+ * A Firebase Storage instance.
+ * @public
+ */
+export declare interface FirebaseStorage extends _FirebaseService {
+    /**
+     * The {@link @firebase/app#FirebaseApp} associated with this `FirebaseStorage` instance.
+     */
+    readonly app: FirebaseApp;
+    /**
+     * The maximum time to retry uploads in milliseconds.
+     */
+    maxUploadRetryTime: number;
+    /**
+     * The maximum time to retry operations other than uploads or downloads in
+     * milliseconds.
+     */
+    maxOperationRetryTime: number;
+}
+
+/**
+ * A service that provides Firebase Storage Reference instances.
+ * @param opt_url - gs:// url to a custom Storage Bucket
+ *
+ * @internal
+ */
+export declare class _FirebaseStorageImpl implements FirebaseStorage {
+    /**
+     * FirebaseApp associated with this StorageService instance.
+     */
+    readonly app: FirebaseApp;
+    readonly _authProvider: Provider<FirebaseAuthInternalName>;
+    /**
+     * @internal
+     */
+    readonly _appCheckProvider: Provider<AppCheckInternalComponentName>;
+    /**
+     * @internal
+     */
+    readonly _url?: string | undefined;
+    readonly _firebaseVersion?: string | undefined;
+    _isUsingEmulator: boolean;
+    _bucket: _Location | null;
+    /**
+     * This string can be in the formats:
+     * - host
+     * - host:port
+     */
+    private _host;
+    _protocol: string;
+    protected readonly _appId: string | null;
+    private readonly _requests;
+    private _deleted;
+    private _maxOperationRetryTime;
+    private _maxUploadRetryTime;
+    _overrideAuthToken?: string;
+    constructor(
+    /**
+     * FirebaseApp associated with this StorageService instance.
+     */
+    app: FirebaseApp, _authProvider: Provider<FirebaseAuthInternalName>, 
+    /**
+     * @internal
+     */
+    _appCheckProvider: Provider<AppCheckInternalComponentName>, 
+    /**
+     * @internal
+     */
+    _url?: string | undefined, _firebaseVersion?: string | undefined, _isUsingEmulator?: boolean);
+    /**
+     * The host string for this service, in the form of `host` or
+     * `host:port`.
+     */
+    get host(): string;
+    set host(host: string);
+    /**
+     * The maximum time to retry uploads in milliseconds.
+     */
+    get maxUploadRetryTime(): number;
+    set maxUploadRetryTime(time: number);
+    /**
+     * The maximum time to retry operations other than uploads or downloads in
+     * milliseconds.
+     */
+    get maxOperationRetryTime(): number;
+    set maxOperationRetryTime(time: number);
+    _getAuthToken(): Promise<string | null>;
+    _getAppCheckToken(): Promise<string | null>;
+    /**
+     * Stop running requests and prevent more from being created.
+     */
+    _delete(): Promise<void>;
+    /**
+     * Returns a new firebaseStorage.Reference object referencing this StorageService
+     * at the given Location.
+     */
+    _makeStorageReference(loc: _Location): _Reference;
+    /**
+     * @param requestInfo - HTTP RequestInfo object
+     * @param authToken - Firebase auth token
+     */
+    _makeRequest<I extends ConnectionType, O>(requestInfo: RequestInfo_2<I, O>, requestFactory: () => Connection<I>, authToken: string | null, appCheckToken: string | null, retry?: boolean): Request_2<O>;
+    makeRequestWithTokens<I extends ConnectionType, O>(requestInfo: RequestInfo_2<I, O>, requestFactory: () => Connection<I>): Promise<O>;
+}
+
+/**
+ * The full set of object metadata, including read-only properties.
+ * @public
+ */
+export declare interface FullMetadata extends UploadMetadata {
+    /**
+     * The bucket this object is contained in.
+     */
+    bucket: string;
+    /**
+     * The full path of this object.
+     */
+    fullPath: string;
+    /**
+     * The object's generation.
+     * {@link https://cloud.google.com/storage/docs/metadata#generation-number}
+     */
+    generation: string;
+    /**
+     * The object's metageneration.
+     * {@link https://cloud.google.com/storage/docs/metadata#generation-number}
+     */
+    metageneration: string;
+    /**
+     * The short name of this object, which is the last component of the full path.
+     * For example, if fullPath is 'full/path/image.png', name is 'image.png'.
+     */
+    name: string;
+    /**
+     * The size of this object, in bytes.
+     */
+    size: number;
+    /**
+     * A date string representing when this object was created.
+     */
+    timeCreated: string;
+    /**
+     * A date string representing when this object was last updated.
+     */
+    updated: string;
+    /**
+     * Tokens to allow access to the download URL.
+     */
+    downloadTokens: string[] | undefined;
+    /**
+     * `StorageReference` associated with this upload.
+     */
+    ref?: StorageReference | undefined;
+}
+
+/**
+ * Downloads the data at the object's location. Returns an error if the object
+ * is not found.
+ *
+ * To use this functionality, you have to whitelist your app's origin in your
+ * Cloud Storage bucket. See also
+ * https://cloud.google.com/storage/docs/configuring-cors
+ *
+ * This API is not available in Node.
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A Promise that resolves with a Blob containing the object's bytes
+ */
+export declare function getBlob(ref: StorageReference, maxDownloadSizeBytes?: number): Promise<Blob>;
+
+/**
+ * Downloads the data at the object's location. Returns an error if the object
+ * is not found.
+ *
+ * To use this functionality, you have to whitelist your app's origin in your
+ * Cloud Storage bucket. See also
+ * https://cloud.google.com/storage/docs/configuring-cors
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A Promise containing the object's bytes
+ */
+export declare function getBytes(ref: StorageReference, maxDownloadSizeBytes?: number): Promise<ArrayBuffer>;
+
+/**
+ * @internal
+ */
+export declare function _getChild(ref: StorageReference, childPath: string): _Reference;
+
+/**
+ * Returns the download URL for the given {@link StorageReference}.
+ * @public
+ * @param ref - {@link StorageReference} to get the download URL for.
+ * @returns A `Promise` that resolves with the download
+ *     URL for this object.
+ */
+export declare function getDownloadURL(ref: StorageReference): Promise<string>;
+
+/**
+ * A `Promise` that resolves with the metadata for this object. If this
+ * object doesn't exist or metadata cannot be retrieved, the promise is
+ * rejected.
+ * @public
+ * @param ref - {@link StorageReference} to get metadata from.
+ */
+export declare function getMetadata(ref: StorageReference): Promise<FullMetadata>;
+
+/**
+ * Gets a {@link FirebaseStorage} instance for the given Firebase app.
+ * @public
+ * @param app - Firebase app to get {@link FirebaseStorage} instance for.
+ * @param bucketUrl - The gs:// url to your Firebase Storage Bucket.
+ * If not passed, uses the app's default Storage Bucket.
+ * @returns A {@link FirebaseStorage} instance.
+ */
+export declare function getStorage(app?: FirebaseApp, bucketUrl?: string): FirebaseStorage;
+
+/**
+ * Downloads the data at the object's location. Raises an error event if the
+ * object is not found.
+ *
+ * This API is only available in Node.
+ *
+ * @public
+ * @param ref - StorageReference where data should be downloaded.
+ * @param maxDownloadSizeBytes - If set, the maximum allowed size in bytes to
+ * retrieve.
+ * @returns A stream with the object's data as bytes
+ */
+export declare function getStream(ref: StorageReference, maxDownloadSizeBytes?: number): ReadableStream;
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/** Network headers */
+declare type Headers_2 = Record<string, string>;
+
+/**
+ * Internal enum for task state.
+ */
+declare const enum InternalTaskState {
+    RUNNING = "running",
+    PAUSING = "pausing",
+    PAUSED = "paused",
+    SUCCESS = "success",
+    CANCELING = "canceling",
+    CANCELED = "canceled",
+    ERROR = "error"
+}
+
+/**
+ * @internal
+ */
+export declare function _invalidArgument(message: string): StorageError;
+
+/**
+ * @param name - The name of the operation that was invalid.
+ *
+ * @internal
+ */
+export declare function _invalidRootOperation(name: string): StorageError;
+
+/**
+ * List items (files) and prefixes (folders) under this storage reference.
+ *
+ * List API is only available for Firebase Rules Version 2.
+ *
+ * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'
+ * delimited folder structure.
+ * Refer to GCS's List API if you want to learn more.
+ *
+ * To adhere to Firebase Rules's Semantics, Firebase Storage does not
+ * support objects whose paths end with "/" or contain two consecutive
+ * "/"s. Firebase Storage List API will filter these unsupported objects.
+ * list() may fail if there are too many unsupported objects in the bucket.
+ * @public
+ *
+ * @param ref - {@link StorageReference} to get list from.
+ * @param options - See {@link ListOptions} for details.
+ * @returns A `Promise` that resolves with the items and prefixes.
+ *      `prefixes` contains references to sub-folders and `items`
+ *      contains references to objects in this folder. `nextPageToken`
+ *      can be used to get the rest of the results.
+ */
+export declare function list(ref: StorageReference, options?: ListOptions): Promise<ListResult>;
+
+/**
+ * List all items (files) and prefixes (folders) under this storage reference.
+ *
+ * This is a helper method for calling list() repeatedly until there are
+ * no more results. The default pagination size is 1000.
+ *
+ * Note: The results may not be consistent if objects are changed while this
+ * operation is running.
+ *
+ * Warning: `listAll` may potentially consume too many resources if there are
+ * too many results.
+ * @public
+ * @param ref - {@link StorageReference} to get list from.
+ *
+ * @returns A `Promise` that resolves with all the items and prefixes under
+ *      the current storage reference. `prefixes` contains references to
+ *      sub-directories and `items` contains references to objects in this
+ *      folder. `nextPageToken` is never returned.
+ */
+export declare function listAll(ref: StorageReference): Promise<ListResult>;
+
+/**
+ * The options `list()` accepts.
+ * @public
+ */
+export declare interface ListOptions {
+    /**
+     * If set, limits the total number of `prefixes` and `items` to return.
+     * The default and maximum maxResults is 1000.
+     */
+    maxResults?: number | null;
+    /**
+     * The `nextPageToken` from a previous call to `list()`. If provided,
+     * listing is resumed from the previous position.
+     */
+    pageToken?: string | null;
+}
+
+/**
+ * Result returned by list().
+ * @public
+ */
+export declare interface ListResult {
+    /**
+     * References to prefixes (sub-folders). You can call list() on them to
+     * get its contents.
+     *
+     * Folders are implicit based on '/' in the object paths.
+     * For example, if a bucket has two objects '/a/b/1' and '/a/b/2', list('/a')
+     * will return '/a/b' as a prefix.
+     */
+    prefixes: StorageReference[];
+    /**
+     * Objects in this directory.
+     * You can call getMetadata() and getDownloadUrl() on them.
+     */
+    items: StorageReference[];
+    /**
+     * If set, there might be more results for this list. Use this token to resume the list.
+     */
+    nextPageToken?: string;
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Firebase Storage location data.
+ *
+ * @internal
+ */
+export declare class _Location {
+    readonly bucket: string;
+    private path_;
+    constructor(bucket: string, path: string);
+    get path(): string;
+    get isRoot(): boolean;
+    fullServerUrl(): string;
+    bucketOnlyServerUrl(): string;
+    static makeFromBucketSpec(bucketString: string, host: string): _Location;
+    static makeFromUrl(url: string, host: string): _Location;
+}
+
+/**
+ * @fileoverview Documentation for the metadata format.
+ */
+/**
+ * The full set of object metadata, including read-only properties.
+ */
+declare interface Metadata extends FullMetadata {
+    [prop: string]: unknown;
+}
+
+/**
+ * Function that is called once for each value in a stream of values.
+ */
+declare type NextFn_2<T> = (value: T) => void;
+
+/**
+ * Returns a {@link StorageReference} for the given url.
+ * @param storage - {@link FirebaseStorage} instance.
+ * @param url - URL. If empty, returns root reference.
+ * @public
+ */
+export declare function ref(storage: FirebaseStorage, url?: string): StorageReference;
+
+/**
+ * Returns a {@link StorageReference} for the given path in the
+ * default bucket.
+ * @param storageOrRef - {@link FirebaseStorage} or {@link StorageReference}.
+ * @param pathOrUrlStorage - path. If empty, returns root reference (if {@link FirebaseStorage}
+ * instance provided) or returns same reference (if {@link StorageReference} provided).
+ * @public
+ */
+export declare function ref(storageOrRef: FirebaseStorage | StorageReference, path?: string): StorageReference;
+
+/**
+ * Provides methods to interact with a bucket in the Firebase Storage service.
+ * @internal
+ * @param _location - An fbs.location, or the URL at
+ *     which to base this object, in one of the following forms:
+ *         gs://<bucket>/<object-path>
+ *         http[s]://firebasestorage.googleapis.com/
+ *                     <api-version>/b/<bucket>/o/<object-path>
+ *     Any query or fragment strings will be ignored in the http[s]
+ *     format. If no value is passed, the storage object will use a URL based on
+ *     the project ID of the base firebase.App instance.
+ */
+export declare class _Reference {
+    private _service;
+    _location: _Location;
+    constructor(_service: _FirebaseStorageImpl, location: string | _Location);
+    /**
+     * Returns the URL for the bucket and path this object references,
+     *     in the form gs://<bucket>/<object-path>
+     * @override
+     */
+    toString(): string;
+    protected _newRef(service: _FirebaseStorageImpl, location: _Location): _Reference;
+    /**
+     * A reference to the root of this object's bucket.
+     */
+    get root(): _Reference;
+    /**
+     * The name of the bucket containing this reference's object.
+     */
+    get bucket(): string;
+    /**
+     * The full path of this object.
+     */
+    get fullPath(): string;
+    /**
+     * The short name of this object, which is the last component of the full path.
+     * For example, if fullPath is 'full/path/image.png', name is 'image.png'.
+     */
+    get name(): string;
+    /**
+     * The `StorageService` instance this `StorageReference` is associated with.
+     */
+    get storage(): _FirebaseStorageImpl;
+    /**
+     * A `StorageReference` pointing to the parent location of this `StorageReference`, or null if
+     * this reference is the root.
+     */
+    get parent(): _Reference | null;
+    /**
+     * Utility function to throw an error in methods that do not accept a root reference.
+     */
+    _throwIfRoot(name: string): void;
+}
+
+declare interface Request_2<T> {
+    getPromise(): Promise<T>;
+    /**
+     * Cancels the request. IMPORTANT: the promise may still be resolved with an
+     * appropriate value (if the request is finished before you call this method,
+     * but the promise has not yet been resolved), so don't just assume it will be
+     * rejected if you call this function.
+     * @param appDelete - True if the cancelation came from the app being deleted.
+     */
+    cancel(appDelete?: boolean): void;
+}
+
+/**
+ * A function that converts a server response to the API type expected by the
+ * SDK.
+ *
+ * @param I - the type of the backend's network response
+ * @param O - the output response type used by the rest of the SDK.
+ */
+declare type RequestHandler<I extends ConnectionType, O> = (connection: Connection<I>, response: I) => O;
+
+/**
+ * Contains a fully specified request.
+ *
+ * @param I - the type of the backend's network response.
+ * @param O - the output response type used by the rest of the SDK.
+ */
+declare class RequestInfo_2<I extends ConnectionType, O> {
+    url: string;
+    method: string;
+    /**
+     * Returns the value with which to resolve the request's promise. Only called
+     * if the request is successful. Throw from this function to reject the
+     * returned Request's promise with the thrown error.
+     * Note: The XhrIo passed to this function may be reused after this callback
+     * returns. Do not keep a reference to it in any way.
+     */
+    handler: RequestHandler<I, O>;
+    timeout: number;
+    urlParams: UrlParams;
+    headers: Headers_2;
+    body: Blob | string | Uint8Array | null;
+    errorHandler: ErrorHandler | null;
+    /**
+     * Called with the current number of bytes uploaded and total size (-1 if not
+     * computable) of the request body (i.e. used to report upload progress).
+     */
+    progressCallback: ((p1: number, p2: number) => void) | null;
+    successCodes: number[];
+    additionalRetryCodes: number[];
+    constructor(url: string, method: string, 
+    /**
+     * Returns the value with which to resolve the request's promise. Only called
+     * if the request is successful. Throw from this function to reject the
+     * returned Request's promise with the thrown error.
+     * Note: The XhrIo passed to this function may be reused after this callback
+     * returns. Do not keep a reference to it in any way.
+     */
+    handler: RequestHandler<I, O>, timeout: number);
+}
+
+/**
+ * Object metadata that can be set at any time.
+ * @public
+ */
+export declare interface SettableMetadata {
+    /**
+     * Served as the 'Cache-Control' header on object download.
+     */
+    cacheControl?: string | undefined;
+    /**
+     * Served as the 'Content-Disposition' header on object download.
+     */
+    contentDisposition?: string | undefined;
+    /**
+     * Served as the 'Content-Encoding' header on object download.
+     */
+    contentEncoding?: string | undefined;
+    /**
+     * Served as the 'Content-Language' header on object download.
+     */
+    contentLanguage?: string | undefined;
+    /**
+     * Served as the 'Content-Type' header on object download.
+     */
+    contentType?: string | undefined;
+    /**
+     * Additional user-defined custom metadata.
+     */
+    customMetadata?: {
+        [key: string]: string;
+    } | undefined;
+}
+
+/**
+ * An error returned by the Firebase Storage SDK.
+ * @public
+ */
+export declare class StorageError extends FirebaseError {
+    private status_;
+    private readonly _baseMessage;
+    /**
+     * Stores custom error data unique to the `StorageError`.
+     */
+    customData: {
+        serverResponse: string | null;
+    };
+    /**
+     * @param code - A `StorageErrorCode` string to be prefixed with 'storage/' and
+     *  added to the end of the message.
+     * @param message  - Error message.
+     * @param status_ - Corresponding HTTP Status Code
+     */
+    constructor(code: StorageErrorCode, message: string, status_?: number);
+    get status(): number;
+    set status(status: number);
+    /**
+     * Compares a `StorageErrorCode` against this error's code, filtering out the prefix.
+     */
+    _codeEquals(code: StorageErrorCode): boolean;
+    /**
+     * Optional response message that was added by the server.
+     */
+    get serverResponse(): null | string;
+    set serverResponse(serverResponse: string | null);
+}
+
+/**
+ * @public
+ * Error codes that can be attached to `StorageError` objects.
+ */
+export declare enum StorageErrorCode {
+    UNKNOWN = "unknown",
+    OBJECT_NOT_FOUND = "object-not-found",
+    BUCKET_NOT_FOUND = "bucket-not-found",
+    PROJECT_NOT_FOUND = "project-not-found",
+    QUOTA_EXCEEDED = "quota-exceeded",
+    UNAUTHENTICATED = "unauthenticated",
+    UNAUTHORIZED = "unauthorized",
+    UNAUTHORIZED_APP = "unauthorized-app",
+    RETRY_LIMIT_EXCEEDED = "retry-limit-exceeded",
+    INVALID_CHECKSUM = "invalid-checksum",
+    CANCELED = "canceled",
+    INVALID_EVENT_NAME = "invalid-event-name",
+    INVALID_URL = "invalid-url",
+    INVALID_DEFAULT_BUCKET = "invalid-default-bucket",
+    NO_DEFAULT_BUCKET = "no-default-bucket",
+    CANNOT_SLICE_BLOB = "cannot-slice-blob",
+    SERVER_FILE_WRONG_SIZE = "server-file-wrong-size",
+    NO_DOWNLOAD_URL = "no-download-url",
+    INVALID_ARGUMENT = "invalid-argument",
+    INVALID_ARGUMENT_COUNT = "invalid-argument-count",
+    APP_DELETED = "app-deleted",
+    INVALID_ROOT_OPERATION = "invalid-root-operation",
+    INVALID_FORMAT = "invalid-format",
+    INTERNAL_ERROR = "internal-error",
+    UNSUPPORTED_ENVIRONMENT = "unsupported-environment"
+}
+
+/**
+ * A stream observer for Firebase Storage.
+ * @public
+ */
+export declare interface StorageObserver<T> {
+    next?: NextFn<T> | null;
+    error?: (error: StorageError) => void | null;
+    complete?: CompleteFn | null;
+}
+
+/**
+ * An observer identical to the `Observer` defined in packages/util except the
+ * error passed into the ErrorFn is specifically a `StorageError`.
+ */
+declare interface StorageObserver_2<T> {
+    /**
+     * Function that is called once for each value in the event stream.
+     */
+    next?: NextFn_2<T>;
+    /**
+     * A function that is called with a `StorageError`
+     * if the event stream ends due to an error.
+     */
+    error?: ErrorFn;
+    /**
+     * A function that is called if the event stream ends normally.
+     */
+    complete?: CompleteFn_2;
+}
+
+/**
+ * Represents a reference to a Google Cloud Storage object. Developers can
+ * upload, download, and delete objects, as well as get/set object metadata.
+ * @public
+ */
+export declare interface StorageReference {
+    /**
+     * Returns a gs:// URL for this object in the form
+     *   `gs://<bucket>/<path>/<to>/<object>`
+     * @returns The gs:// URL.
+     */
+    toString(): string;
+    /**
+     * A reference to the root of this object's bucket.
+     */
+    root: StorageReference;
+    /**
+     * The name of the bucket containing this reference's object.
+     */
+    bucket: string;
+    /**
+     * The full path of this object.
+     */
+    fullPath: string;
+    /**
+     * The short name of this object, which is the last component of the full path.
+     * For example, if fullPath is 'full/path/image.png', name is 'image.png'.
+     */
+    name: string;
+    /**
+     * The {@link FirebaseStorage} instance associated with this reference.
+     */
+    storage: FirebaseStorage;
+    /**
+     * A reference pointing to the parent location of this reference, or null if
+     * this reference is the root.
+     */
+    parent: StorageReference | null;
+}
+
+declare class StringData {
+    data: Uint8Array;
+    contentType: string | null;
+    constructor(data: Uint8Array, contentType?: string | null);
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * An enumeration of the possible string formats for upload.
+ * @public
+ */
+export declare type StringFormat = (typeof StringFormat)[keyof typeof StringFormat];
+
+/**
+ * An enumeration of the possible string formats for upload.
+ * @public
+ */
+export declare const StringFormat: {
+    /**
+     * Indicates the string should be interpreted "raw", that is, as normal text.
+     * The string will be interpreted as UTF-16, then uploaded as a UTF-8 byte
+     * sequence.
+     * Example: The string 'Hello! \\ud83d\\ude0a' becomes the byte sequence
+     * 48 65 6c 6c 6f 21 20 f0 9f 98 8a
+     */
+    readonly RAW: "raw";
+    /**
+     * Indicates the string should be interpreted as base64-encoded data.
+     * Padding characters (trailing '='s) are optional.
+     * Example: The string 'rWmO++E6t7/rlw==' becomes the byte sequence
+     * ad 69 8e fb e1 3a b7 bf eb 97
+     */
+    readonly BASE64: "base64";
+    /**
+     * Indicates the string should be interpreted as base64url-encoded data.
+     * Padding characters (trailing '='s) are optional.
+     * Example: The string 'rWmO--E6t7_rlw==' becomes the byte sequence
+     * ad 69 8e fb e1 3a b7 bf eb 97
+     */
+    readonly BASE64URL: "base64url";
+    /**
+     * Indicates the string is a data URL, such as one obtained from
+     * canvas.toDataURL().
+     * Example: the string 'data:application/octet-stream;base64,aaaa'
+     * becomes the byte sequence
+     * 69 a6 9a
+     * (the content-type "application/octet-stream" is also applied, but can
+     * be overridden in the metadata object).
+     */
+    readonly DATA_URL: "data_url";
+};
+
+/**
+ * Subscribes to an event stream.
+ */
+declare type Subscribe_2<T> = (next?: NextFn_2<T> | StorageObserver_2<T>, error?: ErrorFn, complete?: CompleteFn_2) => Unsubscribe_2;
+
+/**
+ * An event that is triggered on a task.
+ * @public
+ */
+export declare type TaskEvent = 'state_changed';
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Enumerations used for upload tasks.
+ */
+/**
+ * An event that is triggered on a task.
+ * @internal
+ */
+export declare type _TaskEvent = string;
+
+/**
+ * An event that is triggered on a task.
+ * @internal
+ */
+export declare const _TaskEvent: {
+    /**
+     * For this event,
+     * <ul>
+     *   <li>The `next` function is triggered on progress updates and when the
+     *       task is paused/resumed with an `UploadTaskSnapshot` as the first
+     *       argument.</li>
+     *   <li>The `error` function is triggered if the upload is canceled or fails
+     *       for another reason.</li>
+     *   <li>The `complete` function is triggered if the upload completes
+     *       successfully.</li>
+     * </ul>
+     */
+    STATE_CHANGED: string;
+};
+
+/**
+ * Represents the current state of a running upload.
+ * @public
+ */
+export declare type TaskState = 'running' | 'paused' | 'success' | 'canceled' | 'error';
+
+/**
+ * Represents the current state of a running upload.
+ * @internal
+ */
+export declare type _TaskState = (typeof _TaskState)[keyof typeof _TaskState];
+
+/**
+ * Represents the current state of a running upload.
+ * @internal
+ */
+export declare const _TaskState: {
+    /** The task is currently transferring data. */
+    readonly RUNNING: "running";
+    /** The task was paused by the user. */
+    readonly PAUSED: "paused";
+    /** The task completed successfully. */
+    readonly SUCCESS: "success";
+    /** The task was canceled. */
+    readonly CANCELED: "canceled";
+    /** The task failed with an error. */
+    readonly ERROR: "error";
+};
+
+/**
+ * Unsubscribes from a stream.
+ */
+declare type Unsubscribe_2 = () => void;
+
+/**
+ * Updates the metadata for this object.
+ * @public
+ * @param ref - {@link StorageReference} to update metadata for.
+ * @param metadata - The new metadata for the object.
+ *     Only values that have been explicitly set will be changed. Explicitly
+ *     setting a value to null will remove the metadata.
+ * @returns A `Promise` that resolves with the new metadata for this object.
+ */
+export declare function updateMetadata(ref: StorageReference, metadata: SettableMetadata): Promise<FullMetadata>;
+
+/**
+ * Uploads data to this object's location.
+ * The upload is not resumable.
+ * @public
+ * @param ref - {@link StorageReference} where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the data to upload.
+ * @returns A Promise containing an UploadResult
+ */
+export declare function uploadBytes(ref: StorageReference, data: Blob | Uint8Array | ArrayBuffer, metadata?: UploadMetadata): Promise<UploadResult>;
+
+/**
+ * Uploads data to this object's location.
+ * The upload can be paused and resumed, and exposes progress updates.
+ * @public
+ * @param ref - {@link StorageReference} where data should be uploaded.
+ * @param data - The data to upload.
+ * @param metadata - Metadata for the data to upload.
+ * @returns An UploadTask
+ */
+export declare function uploadBytesResumable(ref: StorageReference, data: Blob | Uint8Array | ArrayBuffer, metadata?: UploadMetadata): UploadTask;
+
+/**
+ * Object metadata that can be set at upload.
+ * @public
+ */
+export declare interface UploadMetadata extends SettableMetadata {
+    /**
+     * A Base64-encoded MD5 hash of the object being uploaded.
+     */
+    md5Hash?: string | undefined;
+}
+
+/**
+ * Result returned from a non-resumable upload.
+ * @public
+ */
+export declare interface UploadResult {
+    /**
+     * Contains the metadata sent back from the server.
+     */
+    readonly metadata: FullMetadata;
+    /**
+     * The reference that spawned this upload.
+     */
+    readonly ref: StorageReference;
+}
+
+/**
+ * Uploads a string to this object's location.
+ * The upload is not resumable.
+ * @public
+ * @param ref - {@link StorageReference} where string should be uploaded.
+ * @param value - The string to upload.
+ * @param format - The format of the string to upload.
+ * @param metadata - Metadata for the string to upload.
+ * @returns A Promise containing an UploadResult
+ */
+export declare function uploadString(ref: StorageReference, value: string, format?: StringFormat, metadata?: UploadMetadata): Promise<UploadResult>;
+
+/**
+ * Represents the process of uploading an object. Allows you to monitor and
+ * manage the upload.
+ * @public
+ */
+export declare interface UploadTask {
+    /**
+     * Cancels a running task. Has no effect on a complete or failed task.
+     * @returns True if the cancel had an effect.
+     */
+    cancel(): boolean;
+    /**
+     * Equivalent to calling `then(null, onRejected)`.
+     */
+    catch(onRejected: (error: StorageError) => unknown): Promise<unknown>;
+    /**
+     * Listens for events on this task.
+     *
+     * Events have three callback functions (referred to as `next`, `error`, and
+     * `complete`).
+     *
+     * If only the event is passed, a function that can be used to register the
+     * callbacks is returned. Otherwise, the callbacks are passed after the event.
+     *
+     * Callbacks can be passed either as three separate arguments <em>or</em> as the
+     * `next`, `error`, and `complete` properties of an object. Any of the three
+     * callbacks is optional, as long as at least one is specified. In addition,
+     * when you add your callbacks, you get a function back. You can call this
+     * function to unregister the associated callbacks.
+     *
+     * @example **Pass callbacks separately or in an object.**
+     * ```javascript
+     * var next = function(snapshot) {};
+     * var error = function(error) {};
+     * var complete = function() {};
+     *
+     * // The first example.
+     * uploadTask.on(
+     *     firebase.storage.TaskEvent.STATE_CHANGED,
+     *     next,
+     *     error,
+     *     complete);
+     *
+     * // This is equivalent to the first example.
+     * uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED, {
+     *   'next': next,
+     *   'error': error,
+     *   'complete': complete
+     * });
+     *
+     * // This is equivalent to the first example.
+     * var subscribe = uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED);
+     * subscribe(next, error, complete);
+     *
+     * // This is equivalent to the first example.
+     * var subscribe = uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED);
+     * subscribe({
+     *   'next': next,
+     *   'error': error,
+     *   'complete': complete
+     * });
+     * ```
+     *
+     * @example **Any callback is optional.**
+     * ```javascript
+     * // Just listening for completion, this is legal.
+     * uploadTask.on(
+     *     firebase.storage.TaskEvent.STATE_CHANGED,
+     *     null,
+     *     null,
+     *     function() {
+     *       console.log('upload complete!');
+     *     });
+     *
+     * // Just listening for progress/state changes, this is legal.
+     * uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED, function(snapshot) {
+     *   var percent = snapshot.bytesTransferred / snapshot.totalBytes * 100;
+     *   console.log(percent + "% done");
+     * });
+     *
+     * // This is also legal.
+     * uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED, {
+     *   'complete': function() {
+     *     console.log('upload complete!');
+     *   }
+     * });
+     * ```
+     *
+     * @example **Use the returned function to remove callbacks.**
+     * ```javascript
+     * var unsubscribe = uploadTask.on(
+     *     firebase.storage.TaskEvent.STATE_CHANGED,
+     *     function(snapshot) {
+     *       var percent = snapshot.bytesTransferred / snapshot.totalBytes * 100;
+     *       console.log(percent + "% done");
+     *       // Stop after receiving one update.
+     *       unsubscribe();
+     *     });
+     *
+     * // This code is equivalent to the above.
+     * var handle = uploadTask.on(firebase.storage.TaskEvent.STATE_CHANGED);
+     * unsubscribe = handle(function(snapshot) {
+     *   var percent = snapshot.bytesTransferred / snapshot.totalBytes * 100;
+     *   console.log(percent + "% done");
+     *   // Stop after receiving one update.
+     *   unsubscribe();
+     * });
+     * ```
+     *
+     * @param event - The type of event to listen for.
+     * @param nextOrObserver -
+     *     The `next` function, which gets called for each item in
+     *     the event stream, or an observer object with some or all of these three
+     *     properties (`next`, `error`, `complete`).
+     * @param error - A function that gets called with a `StorageError`
+     *     if the event stream ends due to an error.
+     * @param completed - A function that gets called if the
+     *     event stream ends normally.
+     * @returns
+     *     If only the event argument is passed, returns a function you can use to
+     *     add callbacks (see the examples above). If more than just the event
+     *     argument is passed, returns a function you can call to unregister the
+     *     callbacks.
+     */
+    on(event: TaskEvent, nextOrObserver?: StorageObserver<UploadTaskSnapshot> | null | ((snapshot: UploadTaskSnapshot) => unknown), error?: ((a: StorageError) => unknown) | null, complete?: Unsubscribe | null): Unsubscribe | Subscribe<UploadTaskSnapshot>;
+    /**
+     * Pauses a currently running task. Has no effect on a paused or failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    pause(): boolean;
+    /**
+     * Resumes a paused task. Has no effect on a currently running or failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    resume(): boolean;
+    /**
+     * A snapshot of the current task state.
+     */
+    snapshot: UploadTaskSnapshot;
+    /**
+     * This object behaves like a Promise, and resolves with its snapshot data
+     * when the upload completes.
+     * @param onFulfilled - The fulfillment callback. Promise chaining works as normal.
+     * @param onRejected - The rejection callback.
+     */
+    then(onFulfilled?: ((snapshot: UploadTaskSnapshot) => unknown) | null, onRejected?: ((error: StorageError) => unknown) | null): Promise<unknown>;
+}
+
+/**
+ * Represents a blob being uploaded. Can be used to pause/resume/cancel the
+ * upload and manage callbacks for various events.
+ * @internal
+ */
+export declare class _UploadTask {
+    private _ref;
+    /**
+     * The data to be uploaded.
+     */
+    _blob: _FbsBlob;
+    /**
+     * Metadata related to the upload.
+     */
+    _metadata: Metadata | null;
+    private _mappings;
+    /**
+     * Number of bytes transferred so far.
+     */
+    _transferred: number;
+    private _needToFetchStatus;
+    private _needToFetchMetadata;
+    private _observers;
+    private _resumable;
+    /**
+     * Upload state.
+     */
+    _state: InternalTaskState;
+    private _error?;
+    private _uploadUrl?;
+    private _request?;
+    private _chunkMultiplier;
+    private _errorHandler;
+    private _metadataErrorHandler;
+    private _resolve?;
+    private _reject?;
+    private pendingTimeout?;
+    private _promise;
+    private sleepTime;
+    private maxSleepTime;
+    isExponentialBackoffExpired(): boolean;
+    /**
+     * @param ref - The firebaseStorage.Reference object this task came
+     *     from, untyped to avoid cyclic dependencies.
+     * @param blob - The blob to upload.
+     */
+    constructor(ref: _Reference, blob: _FbsBlob, metadata?: Metadata | null);
+    private _makeProgressCallback;
+    private _shouldDoResumable;
+    private _start;
+    private _resolveToken;
+    private _createResumable;
+    private _fetchStatus;
+    private _continueUpload;
+    private _increaseMultiplier;
+    private _fetchMetadata;
+    private _oneShotUpload;
+    private _updateProgress;
+    private _transition;
+    private completeTransitions_;
+    /**
+     * A snapshot of the current task state.
+     */
+    get snapshot(): UploadTaskSnapshot;
+    /**
+     * Adds a callback for an event.
+     * @param type - The type of event to listen for.
+     * @param nextOrObserver -
+     *     The `next` function, which gets called for each item in
+     *     the event stream, or an observer object with some or all of these three
+     *     properties (`next`, `error`, `complete`).
+     * @param error - A function that gets called with a `StorageError`
+     *     if the event stream ends due to an error.
+     * @param completed - A function that gets called if the
+     *     event stream ends normally.
+     * @returns
+     *     If only the event argument is passed, returns a function you can use to
+     *     add callbacks (see the examples above). If more than just the event
+     *     argument is passed, returns a function you can call to unregister the
+     *     callbacks.
+     */
+    on(type: _TaskEvent, nextOrObserver?: StorageObserver<UploadTaskSnapshot> | null | ((snapshot: UploadTaskSnapshot) => unknown), error?: ((a: StorageError) => unknown) | null, completed?: CompleteFn | null): Unsubscribe_2 | Subscribe_2<UploadTaskSnapshot>;
+    /**
+     * This object behaves like a Promise, and resolves with its snapshot data
+     * when the upload completes.
+     * @param onFulfilled - The fulfillment callback. Promise chaining works as normal.
+     * @param onRejected - The rejection callback.
+     */
+    then<U>(onFulfilled?: ((value: UploadTaskSnapshot) => U | Promise<U>) | null, onRejected?: ((error: StorageError) => U | Promise<U>) | null): Promise<U>;
+    /**
+     * Equivalent to calling `then(null, onRejected)`.
+     */
+    catch<T>(onRejected: (p1: StorageError) => T | Promise<T>): Promise<T>;
+    /**
+     * Adds the given observer.
+     */
+    private _addObserver;
+    /**
+     * Removes the given observer.
+     */
+    private _removeObserver;
+    private _notifyObservers;
+    private _finishPromise;
+    private _notifyObserver;
+    /**
+     * Resumes a paused task. Has no effect on a currently running or failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    resume(): boolean;
+    /**
+     * Pauses a currently running task. Has no effect on a paused or failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    pause(): boolean;
+    /**
+     * Cancels a currently running or paused task. Has no effect on a complete or
+     * failed task.
+     * @returns True if the operation took effect, false if ignored.
+     */
+    cancel(): boolean;
+}
+
+/**
+ * Holds data about the current state of the upload task.
+ * @public
+ */
+export declare interface UploadTaskSnapshot {
+    /**
+     * The number of bytes that have been successfully uploaded so far.
+     */
+    bytesTransferred: number;
+    /**
+     * Before the upload completes, contains the metadata sent to the server.
+     * After the upload completes, contains the metadata sent back from the server.
+     */
+    metadata: FullMetadata;
+    /**
+     * The reference that spawned this snapshot's upload task.
+     */
+    ref: StorageReference;
+    /**
+     * The current state of the task.
+     */
+    state: TaskState;
+    /**
+     * The task of which this is a snapshot.
+     */
+    task: UploadTask;
+    /**
+     * The total number of bytes to be uploaded.
+     */
+    totalBytes: number;
+}
+
+/**
+ * Type for url params stored in RequestInfo.
+ */
+declare interface UrlParams {
+    [name: string]: string | number;
+}
+
+export { }
diff --git a/frontend-old/node_modules/@firebase/storage/dist/test/unit/connection.d.ts b/frontend-old/node_modules/@firebase/storage/dist/test/unit/connection.d.ts
new file mode 100644
index 0000000..47fe45b
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/test/unit/connection.d.ts
@@ -0,0 +1,47 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { ErrorCode, Headers, Connection } from '../../src/implementation/connection';
+export type SendHook = (connection: TestingConnection, url: string, method: string, body?: ArrayBufferView | Blob | string | null, headers?: Headers) => void;
+export declare enum State {
+    START = 0,
+    SENT = 1,
+    DONE = 2
+}
+export declare class TestingConnection implements Connection<string> {
+    private state;
+    private sendPromise;
+    private resolve;
+    private sendHook;
+    private status;
+    private responseText;
+    private headers;
+    private errorCode;
+    constructor(sendHook: SendHook | null);
+    send(url: string, method: string, _isUsingEmulator: boolean, body?: ArrayBufferView | Blob | string | null, headers?: Headers): Promise<void>;
+    simulateResponse(status: number, body: string, headers: {
+        [key: string]: string;
+    }): void;
+    getErrorCode(): ErrorCode;
+    getStatus(): number;
+    getResponse(): string;
+    getErrorText(): string;
+    abort(): void;
+    getResponseHeader(header: string): string | null;
+    addUploadProgressListener(): void;
+    removeUploadProgressListener(): void;
+}
+export declare function newTestConnection(sendHook?: SendHook | null): Connection<string>;
diff --git a/frontend-old/node_modules/@firebase/storage/dist/test/unit/testshared.d.ts b/frontend-old/node_modules/@firebase/storage/dist/test/unit/testshared.d.ts
new file mode 100644
index 0000000..b267049
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/dist/test/unit/testshared.d.ts
@@ -0,0 +1,60 @@
+import { FirebaseApp } from '@firebase/app-types';
+import { StorageError } from '../../src/implementation/error';
+import { Headers, Connection, ConnectionType } from '../../src/implementation/connection';
+import { FirebaseAuthInternalName } from '@firebase/auth-interop-types';
+import { Provider } from '@firebase/component';
+import { AppCheckInternalComponentName } from '@firebase/app-check-interop-types';
+import { FirebaseStorageImpl } from '../../src/service';
+import { Metadata } from '../../src/metadata';
+export declare const authToken = "totally-legit-auth-token";
+export declare const appCheckToken = "totally-shady-token";
+export declare const bucket = "mybucket";
+export declare const fakeApp: FirebaseApp;
+export declare const fakeAuthProvider: Provider<"auth-internal">;
+export declare const emptyAuthProvider: Provider<"auth-internal">;
+export declare const fakeAppCheckTokenProvider: Provider<"app-check-internal">;
+export declare function makeFakeApp(bucketArg?: string): FirebaseApp;
+export declare function makeFakeAuthProvider(token: {
+    accessToken: string;
+}): Provider<FirebaseAuthInternalName>;
+export declare function makeFakeAppCheckProvider(tokenResult: {
+    token: string;
+}): Provider<AppCheckInternalComponentName>;
+/**
+ * Returns something that looks like an fbs.XhrIo with the given headers
+ * and status.
+ */
+export declare function fakeXhrIo<I extends ConnectionType = string>(headers: Headers, status?: number): Connection<I>;
+/**
+ * Binds ignoring types. Used to test calls involving improper arguments.
+ */
+export declare function bind(f: Function, ctx: any, ...args: any[]): () => void;
+export declare function assertThrows(f: () => void, code: string): StorageError;
+export declare function assertUint8ArrayEquals(arr1: Uint8Array, arr2: Uint8Array): void;
+export declare function assertObjectIncludes(included: {
+    [name: string]: any;
+}, obj: {
+    [name: string]: any;
+}): void;
+interface Response {
+    status: number;
+    body: string;
+    headers: Headers;
+}
+export type RequestHandler = (url: string, method: string, body?: ArrayBufferView | Blob | string | null, headers?: Headers) => Response;
+export declare function storageServiceWithHandler(handler: RequestHandler, shouldResponseCb?: () => boolean): FirebaseStorageImpl;
+export declare function fakeServerHandler(fakeMetadata?: Partial<Metadata>): RequestHandler;
+/**
+ * Responds with a 503 for finalize.
+ * @param fakeMetadata metadata to respond with for finalize
+ * @returns a handler for requests
+ */
+export declare function fake503ForFinalizeServerHandler(fakeMetadata?: Partial<Metadata>): RequestHandler;
+/**
+ * Responds with a 503 for upload.
+ * @param fakeMetadata metadata to respond with for query
+ * @returns a handler for requests
+ */
+export declare function fake503ForUploadServerHandler(fakeMetadata?: Partial<Metadata>, cb?: () => void): RequestHandler;
+export declare function fakeOneShot503ServerHandler(fakeMetadata?: Partial<Metadata>): RequestHandler;
+export {};
diff --git a/frontend-old/node_modules/@firebase/storage/package.json b/frontend-old/node_modules/@firebase/storage/package.json
new file mode 100644
index 0000000..d0b4b75
--- /dev/null
+++ b/frontend-old/node_modules/@firebase/storage/package.json
@@ -0,0 +1,77 @@
+{
+  "name": "@firebase/storage",
+  "version": "0.14.0",
+  "description": "",
+  "author": "Firebase <firebase-support@google.com> (https://firebase.google.com/)",
+  "main": "dist/index.node.cjs.js",
+  "module": "dist/index.esm.js",
+  "browser": "dist/index.esm.js",
+  "exports": {
+    ".": {
+      "types": "./dist/storage-public.d.ts",
+      "node": {
+        "import": "./dist/node-esm/index.node.esm.js",
+        "default": "./dist/index.node.cjs.js"
+      },
+      "browser": {
+        "require": "./dist/index.cjs.js",
+        "import": "./dist/index.esm.js"
+      },
+      "default": "./dist/index.esm.js"
+    },
+    "./package.json": "./package.json"
+  },
+  "files": [
+    "dist"
+  ],
+  "scripts": {
+    "bundle": "rollup -c",
+    "lint": "eslint -c .eslintrc.js '**/*.ts' --ignore-path '../../.gitignore'",
+    "lint:fix": "eslint --fix -c .eslintrc.js '**/*.ts' --ignore-path '../../.gitignore'",
+    "build": "rollup -c rollup.config.js && yarn api-report",
+    "build:deps": "lerna run --scope @firebase/storage --include-dependencies build",
+    "dev": "rollup -c -w",
+    "test": "run-p --npm-path npm test:browser test:node lint",
+    "test:all": "run-p --npm-path npm test:browser test:node",
+    "test:ci": "node ../../scripts/run_tests_in_ci.js -s test:all",
+    "test:browser:unit": "karma start --unit",
+    "test:browser:integration": "karma start --integration",
+    "test:browser": "karma start",
+    "test:node": "TS_NODE_FILES=true TS_NODE_CACHE=NO TS_NODE_COMPILER_OPTIONS='{\"module\":\"commonjs\"}' nyc --reporter lcovonly -- mocha 'test/{,!(browser)/**/}*.test.ts' --file src/index.node.ts --config ../../config/mocharc.node.js",
+    "test:debug": "karma start --browser=Chrome",
+    "trusted-type-check": "tsec -p tsconfig.json --noEmit",
+    "prettier": "prettier --write 'src/**/*.ts' 'test/**/*.ts'",
+    "api-report": "api-extractor run --local --verbose && ts-node-script ../../repo-scripts/prune-dts/prune-dts.ts --input dist/storage-public.d.ts --output dist/storage-public.d.ts",
+    "typings:public": "node ../../scripts/build/use_typings.js ./dist/storage-public.d.ts"
+  },
+  "license": "Apache-2.0",
+  "dependencies": {
+    "@firebase/util": "1.13.0",
+    "@firebase/component": "0.7.0",
+    "tslib": "^2.1.0"
+  },
+  "peerDependencies": {
+    "@firebase/app": "0.x"
+  },
+  "devDependencies": {
+    "@firebase/app": "0.14.0",
+    "@firebase/auth": "1.11.0",
+    "rollup": "2.79.2",
+    "@rollup/plugin-alias": "5.1.1",
+    "@rollup/plugin-json": "6.1.0",
+    "rollup-plugin-typescript2": "0.36.0",
+    "typescript": "5.5.4"
+  },
+  "repository": {
+    "directory": "packages/storage",
+    "type": "git",
+    "url": "git+https://github.com/firebase/firebase-js-sdk.git"
+  },
+  "bugs": {
+    "url": "https://github.com/firebase/firebase-js-sdk/issues"
+  },
+  "typings": "./dist/storage-public.d.ts",
+  "engines": {
+    "node": ">=20.0.0"
+  }
+}