{"version":3,"file":"firebase-messaging.js","sources":["../../node_modules/tslib/tslib.es6.js","../util/src/errors.ts","../component/src/component.ts","../../node_modules/idb/lib/idb.mjs","../installations/src/util/constants.ts","../installations/src/util/errors.ts","../installations/src/api/common.ts","../installations/src/util/sleep.ts","../installations/src/helpers/generate-fid.ts","../installations/src/helpers/buffer-to-base64-url-safe.ts","../installations/src/util/get-key.ts","../installations/src/helpers/fid-changed.ts","../installations/src/helpers/idb-manager.ts","../installations/src/index.ts","../installations/src/helpers/get-installation-entry.ts","../installations/src/api/create-installation-request.ts","../installations/src/api/generate-auth-token-request.ts","../installations/src/helpers/refresh-auth-token.ts","../installations/src/functions/get-token.ts","../installations/src/api/delete-installation-request.ts","../installations/src/functions/on-id-change.ts","../installations/src/helpers/extract-app-config.ts","../installations/src/functions/get-id.ts","../installations/src/functions/delete-installation.ts","../messaging/src/util/errors.ts","../messaging/src/helpers/extract-app-config.ts","../messaging/src/helpers/array-to-base64.ts","../messaging/src/helpers/migrate-old-database.ts","../messaging/src/helpers/idb-manager.ts","../messaging/src/util/constants.ts","../messaging/src/core/api.ts","../messaging/src/core/token-management.ts","../messaging/src/interfaces/internal-message.ts","../messaging/src/helpers/is-console-message.ts","../messaging/src/controllers/window-controller.ts","../messaging/src/controllers/sw-controller.ts","../messaging/src/helpers/sleep.ts","../messaging/src/index.ts"],"sourcesContent":["/*! *****************************************************************************\r\nCopyright (c) Microsoft Corporation. All rights reserved.\r\nLicensed under the Apache License, Version 2.0 (the \"License\"); you may not use\r\nthis file except in compliance with the License. You may obtain a copy of the\r\nLicense at http://www.apache.org/licenses/LICENSE-2.0\r\n\r\nTHIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY\r\nKIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED\r\nWARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,\r\nMERCHANTABLITY OR NON-INFRINGEMENT.\r\n\r\nSee the Apache Version 2.0 License for specific language governing permissions\r\nand limitations under the License.\r\n***************************************************************************** */\r\n/* global Reflect, Promise */\r\n\r\nvar extendStatics = function(d, b) {\r\n extendStatics = Object.setPrototypeOf ||\r\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\r\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\r\n return extendStatics(d, b);\r\n};\r\n\r\nexport function __extends(d, b) {\r\n extendStatics(d, b);\r\n function __() { this.constructor = d; }\r\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\r\n}\r\n\r\nexport var __assign = function() {\r\n __assign = Object.assign || function __assign(t) {\r\n for (var s, i = 1, n = arguments.length; i < n; i++) {\r\n s = arguments[i];\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\r\n }\r\n return t;\r\n }\r\n return __assign.apply(this, arguments);\r\n}\r\n\r\nexport function __rest(s, e) {\r\n var t = {};\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\r\n t[p] = s[p];\r\n if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\r\n for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\r\n if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\r\n t[p[i]] = s[p[i]];\r\n }\r\n return t;\r\n}\r\n\r\nexport function __decorate(decorators, target, key, desc) {\r\n var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\r\n if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\r\n else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? 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(this.v = v, this) : new __await(v);\r\n}\r\n\r\nexport function __asyncGenerator(thisArg, _arguments, generator) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var g = generator.apply(thisArg, _arguments || []), i, q = [];\r\n return i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i;\r\n function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }\r\n function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\r\n function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\r\n function fulfill(value) { resume(\"next\", value); }\r\n function reject(value) { resume(\"throw\", value); }\r\n function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\r\n}\r\n\r\nexport function __asyncDelegator(o) {\r\n var i, p;\r\n return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\r\n function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: n === \"return\" } : f ? f(v) : v; } : f; }\r\n}\r\n\r\nexport function __asyncValues(o) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var m = o[Symbol.asyncIterator], i;\r\n return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\r\n function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\r\n function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\r\n}\r\n\r\nexport function __makeTemplateObject(cooked, raw) {\r\n if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\r\n return cooked;\r\n};\r\n\r\nexport function __importStar(mod) {\r\n if (mod && mod.__esModule) return mod;\r\n var result = {};\r\n if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];\r\n result.default = mod;\r\n return result;\r\n}\r\n\r\nexport function __importDefault(mod) {\r\n return (mod && mod.__esModule) ? mod : { default: mod };\r\n}\r\n","/**\n * @license\n * Copyright 2017 Google Inc.\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 Standardized Firebase Error.\n *\n * Usage:\n *\n * // Typescript string literals for type-safe codes\n * type Err =\n * 'unknown' |\n * 'object-not-found'\n * ;\n *\n * // Closure enum for type-safe error codes\n * // at-enum {string}\n * var Err = {\n * UNKNOWN: 'unknown',\n * OBJECT_NOT_FOUND: 'object-not-found',\n * }\n *\n * let errors: Map = {\n * 'generic-error': \"Unknown error\",\n * 'file-not-found': \"Could not find file: {$file}\",\n * };\n *\n * // Type-safe function - must pass a valid error code as param.\n * let error = new ErrorFactory('service', 'Service', errors);\n *\n * ...\n * throw error.create(Err.GENERIC);\n * ...\n * throw error.create(Err.FILE_NOT_FOUND, {'file': fileName});\n * ...\n * // Service: Could not file file: foo.txt (service/file-not-found).\n *\n * catch (e) {\n * assert(e.message === \"Could not find file: foo.txt.\");\n * if (e.code === 'service/file-not-found') {\n * console.log(\"Could not read file: \" + e['file']);\n * }\n * }\n */\n\nexport type ErrorMap = {\n readonly [K in ErrorCode]: string;\n};\n\nconst ERROR_NAME = 'FirebaseError';\n\nexport interface StringLike {\n toString(): string;\n}\n\nexport interface ErrorData {\n [key: string]: StringLike | undefined;\n}\n\nexport interface FirebaseError extends Error, ErrorData {\n // Unique code for error - format is service/error-code-string.\n readonly code: string;\n\n // Developer-friendly error message.\n readonly message: string;\n\n // Always 'FirebaseError'.\n readonly name: typeof ERROR_NAME;\n\n // Where available - stack backtrace in a string.\n readonly stack?: string;\n}\n\n// Based on code from:\n// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error#Custom_Error_Types\nexport class FirebaseError extends Error {\n readonly name = ERROR_NAME;\n\n constructor(readonly code: string, message: string) {\n super(message);\n\n // Fix For ES5\n // https://github.com/Microsoft/TypeScript-wiki/blob/master/Breaking-Changes.md#extending-built-ins-like-error-array-and-map-may-no-longer-work\n Object.setPrototypeOf(this, FirebaseError.prototype);\n\n // Maintains proper stack trace for where our error was thrown.\n // Only available on V8.\n if (Error.captureStackTrace) {\n Error.captureStackTrace(this, ErrorFactory.prototype.create);\n }\n }\n}\n\nexport class ErrorFactory<\n ErrorCode extends string,\n ErrorParams extends { readonly [K in ErrorCode]?: ErrorData } = {}\n> {\n constructor(\n private readonly service: string,\n private readonly serviceName: string,\n private readonly errors: ErrorMap\n ) {}\n\n create(\n code: K,\n ...data: K extends keyof ErrorParams ? [ErrorParams[K]] : []\n ): FirebaseError {\n const customData = (data[0] as ErrorData) || {};\n const fullCode = `${this.service}/${code}`;\n const template = this.errors[code];\n\n const message = template ? replaceTemplate(template, customData) : 'Error';\n // Service Name: Error message (service/code).\n const fullMessage = `${this.serviceName}: ${message} (${fullCode}).`;\n\n const error = new FirebaseError(fullCode, fullMessage);\n\n // Keys with an underscore at the end of their name are not included in\n // error.data for some reason.\n // TODO: Replace with Object.entries when lib is updated to es2017.\n for (const key of Object.keys(customData)) {\n if (key.slice(-1) !== '_') {\n if (key in error) {\n console.warn(\n `Overwriting FirebaseError base field \"${key}\" can cause unexpected behavior.`\n );\n }\n error[key] = customData[key];\n }\n }\n\n return error;\n }\n}\n\nfunction replaceTemplate(template: string, data: ErrorData): string {\n return template.replace(PATTERN, (_, key) => {\n const value = data[key];\n return value != null ? value.toString() : `<${key}?>`;\n });\n}\n\nconst PATTERN = /\\{\\$([^}]+)}/g;\n","/**\n * @license\n * Copyright 2019 Google Inc.\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 {\n InstantiationMode,\n InstanceFactory,\n ComponentType,\n Dictionary,\n Name\n} from './types';\n\n/**\n * Component for service name T, e.g. `auth`, `auth-internal`\n */\nexport class Component {\n multipleInstances = false;\n /**\n * Properties to be added to the service namespace\n */\n serviceProps: Dictionary = {};\n\n instantiationMode = InstantiationMode.LAZY;\n\n /**\n *\n * @param name The public service name, e.g. app, auth, firestore, database\n * @param instanceFactory Service factory responsible for creating the public interface\n * @param type whether the service provided by the component is public or private\n */\n constructor(\n readonly name: T,\n readonly instanceFactory: InstanceFactory,\n readonly type: ComponentType\n ) {}\n\n setInstantiationMode(mode: InstantiationMode): this {\n this.instantiationMode = mode;\n return this;\n }\n\n setMultipleInstances(multipleInstances: boolean): this {\n this.multipleInstances = multipleInstances;\n return this;\n }\n\n setServiceProps(props: Dictionary): this {\n this.serviceProps = props;\n return this;\n }\n}\n","function toArray(arr) {\n return Array.prototype.slice.call(arr);\n}\n\nfunction promisifyRequest(request) {\n return new Promise(function(resolve, reject) {\n request.onsuccess = function() {\n resolve(request.result);\n };\n\n request.onerror = function() {\n reject(request.error);\n };\n });\n}\n\nfunction promisifyRequestCall(obj, method, args) {\n var request;\n var p = new Promise(function(resolve, reject) {\n request = obj[method].apply(obj, args);\n promisifyRequest(request).then(resolve, reject);\n });\n\n p.request = request;\n return p;\n}\n\nfunction promisifyCursorRequestCall(obj, method, args) {\n var p = promisifyRequestCall(obj, method, args);\n return p.then(function(value) {\n if (!value) return;\n return new Cursor(value, p.request);\n });\n}\n\nfunction proxyProperties(ProxyClass, targetProp, properties) {\n properties.forEach(function(prop) {\n Object.defineProperty(ProxyClass.prototype, prop, {\n get: function() {\n return this[targetProp][prop];\n },\n set: function(val) {\n this[targetProp][prop] = val;\n }\n });\n });\n}\n\nfunction proxyRequestMethods(ProxyClass, targetProp, Constructor, properties) {\n properties.forEach(function(prop) {\n if (!(prop in Constructor.prototype)) return;\n ProxyClass.prototype[prop] = function() {\n return promisifyRequestCall(this[targetProp], prop, arguments);\n };\n });\n}\n\nfunction proxyMethods(ProxyClass, targetProp, Constructor, properties) {\n properties.forEach(function(prop) {\n if (!(prop in Constructor.prototype)) return;\n ProxyClass.prototype[prop] = function() {\n return this[targetProp][prop].apply(this[targetProp], arguments);\n };\n });\n}\n\nfunction proxyCursorRequestMethods(ProxyClass, targetProp, Constructor, properties) {\n properties.forEach(function(prop) {\n if (!(prop in Constructor.prototype)) return;\n ProxyClass.prototype[prop] = function() {\n return promisifyCursorRequestCall(this[targetProp], prop, arguments);\n };\n });\n}\n\nfunction Index(index) {\n this._index = index;\n}\n\nproxyProperties(Index, '_index', [\n 'name',\n 'keyPath',\n 'multiEntry',\n 'unique'\n]);\n\nproxyRequestMethods(Index, '_index', IDBIndex, [\n 'get',\n 'getKey',\n 'getAll',\n 'getAllKeys',\n 'count'\n]);\n\nproxyCursorRequestMethods(Index, '_index', IDBIndex, [\n 'openCursor',\n 'openKeyCursor'\n]);\n\nfunction Cursor(cursor, request) {\n this._cursor = cursor;\n this._request = request;\n}\n\nproxyProperties(Cursor, '_cursor', [\n 'direction',\n 'key',\n 'primaryKey',\n 'value'\n]);\n\nproxyRequestMethods(Cursor, '_cursor', IDBCursor, [\n 'update',\n 'delete'\n]);\n\n// proxy 'next' methods\n['advance', 'continue', 'continuePrimaryKey'].forEach(function(methodName) {\n if (!(methodName in IDBCursor.prototype)) return;\n Cursor.prototype[methodName] = function() {\n var cursor = this;\n var args = arguments;\n return Promise.resolve().then(function() {\n cursor._cursor[methodName].apply(cursor._cursor, args);\n return promisifyRequest(cursor._request).then(function(value) {\n if (!value) return;\n return new Cursor(value, cursor._request);\n });\n });\n };\n});\n\nfunction ObjectStore(store) {\n this._store = store;\n}\n\nObjectStore.prototype.createIndex = function() {\n return new Index(this._store.createIndex.apply(this._store, arguments));\n};\n\nObjectStore.prototype.index = function() {\n return new Index(this._store.index.apply(this._store, arguments));\n};\n\nproxyProperties(ObjectStore, '_store', [\n 'name',\n 'keyPath',\n 'indexNames',\n 'autoIncrement'\n]);\n\nproxyRequestMethods(ObjectStore, '_store', IDBObjectStore, [\n 'put',\n 'add',\n 'delete',\n 'clear',\n 'get',\n 'getAll',\n 'getKey',\n 'getAllKeys',\n 'count'\n]);\n\nproxyCursorRequestMethods(ObjectStore, '_store', IDBObjectStore, [\n 'openCursor',\n 'openKeyCursor'\n]);\n\nproxyMethods(ObjectStore, '_store', IDBObjectStore, [\n 'deleteIndex'\n]);\n\nfunction Transaction(idbTransaction) {\n this._tx = idbTransaction;\n this.complete = new Promise(function(resolve, reject) {\n idbTransaction.oncomplete = function() {\n resolve();\n };\n idbTransaction.onerror = function() {\n reject(idbTransaction.error);\n };\n idbTransaction.onabort = function() {\n reject(idbTransaction.error);\n };\n });\n}\n\nTransaction.prototype.objectStore = function() {\n return new ObjectStore(this._tx.objectStore.apply(this._tx, arguments));\n};\n\nproxyProperties(Transaction, '_tx', [\n 'objectStoreNames',\n 'mode'\n]);\n\nproxyMethods(Transaction, '_tx', IDBTransaction, [\n 'abort'\n]);\n\nfunction UpgradeDB(db, oldVersion, transaction) {\n this._db = db;\n this.oldVersion = oldVersion;\n this.transaction = new Transaction(transaction);\n}\n\nUpgradeDB.prototype.createObjectStore = function() {\n return new ObjectStore(this._db.createObjectStore.apply(this._db, arguments));\n};\n\nproxyProperties(UpgradeDB, '_db', [\n 'name',\n 'version',\n 'objectStoreNames'\n]);\n\nproxyMethods(UpgradeDB, '_db', IDBDatabase, [\n 'deleteObjectStore',\n 'close'\n]);\n\nfunction DB(db) {\n this._db = db;\n}\n\nDB.prototype.transaction = function() {\n return new Transaction(this._db.transaction.apply(this._db, arguments));\n};\n\nproxyProperties(DB, '_db', [\n 'name',\n 'version',\n 'objectStoreNames'\n]);\n\nproxyMethods(DB, '_db', IDBDatabase, [\n 'close'\n]);\n\n// Add cursor iterators\n// TODO: remove this once browsers do the right thing with promises\n['openCursor', 'openKeyCursor'].forEach(function(funcName) {\n [ObjectStore, Index].forEach(function(Constructor) {\n // Don't create iterateKeyCursor if openKeyCursor doesn't exist.\n if (!(funcName in Constructor.prototype)) return;\n\n Constructor.prototype[funcName.replace('open', 'iterate')] = function() {\n var args = toArray(arguments);\n var callback = args[args.length - 1];\n var nativeObject = this._store || this._index;\n var request = nativeObject[funcName].apply(nativeObject, args.slice(0, -1));\n request.onsuccess = function() {\n callback(request.result);\n };\n };\n });\n});\n\n// polyfill getAll\n[Index, ObjectStore].forEach(function(Constructor) {\n if (Constructor.prototype.getAll) return;\n Constructor.prototype.getAll = function(query, count) {\n var instance = this;\n var items = [];\n\n return new Promise(function(resolve) {\n instance.iterateCursor(query, function(cursor) {\n if (!cursor) {\n resolve(items);\n return;\n }\n items.push(cursor.value);\n\n if (count !== undefined && items.length == count) {\n resolve(items);\n return;\n }\n cursor.continue();\n });\n });\n };\n});\n\nexport function openDb(name, version, upgradeCallback) {\n var p = promisifyRequestCall(indexedDB, 'open', [name, version]);\n var request = p.request;\n\n if (request) {\n request.onupgradeneeded = function(event) {\n if (upgradeCallback) {\n upgradeCallback(new UpgradeDB(request.result, event.oldVersion, request.transaction));\n }\n };\n }\n\n return p.then(function(db) {\n return new DB(db);\n });\n}\n\nexport function deleteDb(name) {\n return promisifyRequestCall(indexedDB, 'deleteDatabase', [name]);\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\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 { version } from '../../package.json';\n\nexport const PENDING_TIMEOUT_MS = 10000;\n\nexport const PACKAGE_VERSION = `w:${version}`;\nexport const INTERNAL_AUTH_VERSION = 'FIS_v2';\n\nexport const INSTALLATIONS_API_URL =\n 'https://firebaseinstallations.googleapis.com/v1';\n\nexport const TOKEN_EXPIRATION_BUFFER = 60 * 60 * 1000; // One hour\n\nexport const SERVICE = 'installations';\nexport const SERVICE_NAME = 'Installations';\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { ErrorFactory, FirebaseError } from '@firebase/util';\nimport { SERVICE, SERVICE_NAME } from './constants';\n\nexport const enum ErrorCode {\n MISSING_APP_CONFIG_VALUES = 'missing-app-config-values',\n NOT_REGISTERED = 'not-registered',\n INSTALLATION_NOT_FOUND = 'installation-not-found',\n REQUEST_FAILED = 'request-failed',\n APP_OFFLINE = 'app-offline',\n DELETE_PENDING_REGISTRATION = 'delete-pending-registration'\n}\n\nconst ERROR_DESCRIPTION_MAP: { readonly [key in ErrorCode]: string } = {\n [ErrorCode.MISSING_APP_CONFIG_VALUES]:\n 'Missing App configuration value: \"{$valueName}\"',\n [ErrorCode.NOT_REGISTERED]: 'Firebase Installation is not registered.',\n [ErrorCode.INSTALLATION_NOT_FOUND]: 'Firebase Installation not found.',\n [ErrorCode.REQUEST_FAILED]:\n '{$requestName} request failed with error \"{$serverCode} {$serverStatus}: {$serverMessage}\"',\n [ErrorCode.APP_OFFLINE]: 'Could not process request. Application offline.',\n [ErrorCode.DELETE_PENDING_REGISTRATION]:\n \"Can't delete installation while there is a pending registration request.\"\n};\n\ninterface ErrorParams {\n [ErrorCode.MISSING_APP_CONFIG_VALUES]: {\n valueName: string;\n };\n [ErrorCode.REQUEST_FAILED]: {\n requestName: string;\n [index: string] : string | number; // to make Typescript 3.8 happy\n } & ServerErrorData;\n}\n\nexport const ERROR_FACTORY = new ErrorFactory(\n SERVICE,\n SERVICE_NAME,\n ERROR_DESCRIPTION_MAP\n);\n\nexport interface ServerErrorData {\n serverCode: number;\n serverMessage: string;\n serverStatus: string;\n}\n\nexport type ServerError = FirebaseError & ServerErrorData;\n\n/** Returns true if error is a FirebaseError that is based on an error from the server. */\nexport function isServerError(error: unknown): error is ServerError {\n return (\n error instanceof FirebaseError &&\n error.code.includes(ErrorCode.REQUEST_FAILED)\n );\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\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';\nimport { GenerateAuthTokenResponse } from '../interfaces/api-response';\nimport { AppConfig } from '../interfaces/app-config';\nimport {\n CompletedAuthToken,\n RegisteredInstallationEntry,\n RequestStatus\n} from '../interfaces/installation-entry';\nimport {\n INSTALLATIONS_API_URL,\n INTERNAL_AUTH_VERSION\n} from '../util/constants';\nimport { ERROR_FACTORY, ErrorCode } from '../util/errors';\n\nexport function getInstallationsEndpoint({ projectId }: AppConfig): string {\n return `${INSTALLATIONS_API_URL}/projects/${projectId}/installations`;\n}\n\nexport function extractAuthTokenInfoFromResponse(\n response: GenerateAuthTokenResponse\n): CompletedAuthToken {\n return {\n token: response.token,\n requestStatus: RequestStatus.COMPLETED,\n expiresIn: getExpiresInFromResponseExpiresIn(response.expiresIn),\n creationTime: Date.now()\n };\n}\n\nexport async function getErrorFromResponse(\n requestName: string,\n response: Response\n): Promise {\n const responseJson: ErrorResponse = await response.json();\n const errorData = responseJson.error;\n return ERROR_FACTORY.create(ErrorCode.REQUEST_FAILED, {\n requestName,\n serverCode: errorData.code,\n serverMessage: errorData.message,\n serverStatus: errorData.status\n });\n}\n\nexport function getHeaders({ apiKey }: AppConfig): Headers {\n return new Headers({\n 'Content-Type': 'application/json',\n Accept: 'application/json',\n 'x-goog-api-key': apiKey\n });\n}\n\nexport function getHeadersWithAuth(\n appConfig: AppConfig,\n { refreshToken }: RegisteredInstallationEntry\n): Headers {\n const headers = getHeaders(appConfig);\n headers.append('Authorization', getAuthorizationHeader(refreshToken));\n return headers;\n}\n\nexport interface ErrorResponse {\n error: {\n code: number;\n message: string;\n status: string;\n };\n}\n\n/**\n * Calls the passed in fetch wrapper and returns the response.\n * If the returned response has a status of 5xx, re-runs the function once and\n * returns the response.\n */\nexport async function retryIfServerError(\n fn: () => Promise\n): Promise {\n const result = await fn();\n\n if (result.status >= 500 && result.status < 600) {\n // Internal Server Error. Retry request.\n return fn();\n }\n\n return result;\n}\n\nfunction getExpiresInFromResponseExpiresIn(responseExpiresIn: string): number {\n // This works because the server will never respond with fractions of a second.\n return Number(responseExpiresIn.replace('s', '000'));\n}\n\nfunction getAuthorizationHeader(refreshToken: string): string {\n return `${INTERNAL_AUTH_VERSION} ${refreshToken}`;\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** Returns a promise that resolves after given time passes. */\nexport function sleep(ms: number): Promise {\n return new Promise(resolve => {\n setTimeout(resolve, ms);\n });\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { bufferToBase64UrlSafe } from './buffer-to-base64-url-safe';\n\nexport const VALID_FID_PATTERN = /^[cdef][\\w-]{21}$/;\nexport const INVALID_FID = '';\n\n/**\n * Generates a new FID using random values from Web Crypto API.\n * Returns an empty string if FID generation fails for any reason.\n */\nexport function generateFid(): string {\n try {\n // A valid FID has exactly 22 base64 characters, which is 132 bits, or 16.5\n // bytes. our implementation generates a 17 byte array instead.\n const fidByteArray = new Uint8Array(17);\n const crypto =\n self.crypto || ((self as unknown) as { msCrypto: Crypto }).msCrypto;\n crypto.getRandomValues(fidByteArray);\n\n // Replace the first 4 random bits with the constant FID header of 0b0111.\n fidByteArray[0] = 0b01110000 + (fidByteArray[0] % 0b00010000);\n\n const fid = encode(fidByteArray);\n\n return VALID_FID_PATTERN.test(fid) ? fid : INVALID_FID;\n } catch {\n // FID generation errored\n return INVALID_FID;\n }\n}\n\n/** Converts a FID Uint8Array to a base64 string representation. */\nfunction encode(fidByteArray: Uint8Array): string {\n const b64String = bufferToBase64UrlSafe(fidByteArray);\n\n // Remove the 23rd character that was added because of the extra 4 bits at the\n // end of our 17 byte array, and the '=' padding.\n return b64String.substr(0, 22);\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\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\nexport function bufferToBase64UrlSafe(array: Uint8Array): string {\n const b64 = btoa(String.fromCharCode(...array));\n return b64.replace(/\\+/g, '-').replace(/\\//g, '_');\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\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 { AppConfig } from '../interfaces/app-config';\n\n/** Returns a string key that can be used to identify the app. */\nexport function getKey(appConfig: AppConfig): string {\n return `${appConfig.appName}!${appConfig.appId}`;\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\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 { getKey } from '../util/get-key';\nimport { AppConfig } from '../interfaces/app-config';\nimport { IdChangeCallbackFn } from '../functions';\n\nconst fidChangeCallbacks: Map> = new Map();\n\n/**\n * Calls the onIdChange callbacks with the new FID value, and broadcasts the\n * change to other tabs.\n */\nexport function fidChanged(appConfig: AppConfig, fid: string): void {\n const key = getKey(appConfig);\n\n callFidChangeCallbacks(key, fid);\n broadcastFidChange(key, fid);\n}\n\nexport function addCallback(\n appConfig: AppConfig,\n callback: IdChangeCallbackFn\n): void {\n // Open the broadcast channel if it's not already open,\n // to be able to listen to change events from other tabs.\n getBroadcastChannel();\n\n const key = getKey(appConfig);\n\n let callbackSet = fidChangeCallbacks.get(key);\n if (!callbackSet) {\n callbackSet = new Set();\n fidChangeCallbacks.set(key, callbackSet);\n }\n callbackSet.add(callback);\n}\n\nexport function removeCallback(\n appConfig: AppConfig,\n callback: IdChangeCallbackFn\n): void {\n const key = getKey(appConfig);\n\n const callbackSet = fidChangeCallbacks.get(key);\n\n if (!callbackSet) {\n return;\n }\n\n callbackSet.delete(callback);\n if (callbackSet.size === 0) {\n fidChangeCallbacks.delete(key);\n }\n\n // Close broadcast channel if there are no more callbacks.\n closeBroadcastChannel();\n}\n\nfunction callFidChangeCallbacks(key: string, fid: string): void {\n const callbacks = fidChangeCallbacks.get(key);\n if (!callbacks) {\n return;\n }\n\n for (const callback of callbacks) {\n callback(fid);\n }\n}\n\nfunction broadcastFidChange(key: string, fid: string): void {\n const channel = getBroadcastChannel();\n if (channel) {\n channel.postMessage({ key, fid });\n }\n closeBroadcastChannel();\n}\n\nlet broadcastChannel: BroadcastChannel | null = null;\n/** Opens and returns a BroadcastChannel if it is supported by the browser. */\nfunction getBroadcastChannel(): BroadcastChannel | null {\n if (!broadcastChannel && 'BroadcastChannel' in self) {\n broadcastChannel = new BroadcastChannel('[Firebase] FID Change');\n broadcastChannel.onmessage = e => {\n callFidChangeCallbacks(e.data.key, e.data.fid);\n };\n }\n return broadcastChannel;\n}\n\nfunction closeBroadcastChannel(): void {\n if (fidChangeCallbacks.size === 0 && broadcastChannel) {\n broadcastChannel.close();\n broadcastChannel = null;\n }\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\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 { DB, openDb } from 'idb';\nimport { AppConfig } from '../interfaces/app-config';\nimport { InstallationEntry } from '../interfaces/installation-entry';\nimport { getKey } from '../util/get-key';\nimport { fidChanged } from './fid-changed';\n\nconst DATABASE_NAME = 'firebase-installations-database';\nconst DATABASE_VERSION = 1;\nconst OBJECT_STORE_NAME = 'firebase-installations-store';\n\nlet dbPromise: Promise | null = null;\nfunction getDbPromise(): Promise {\n if (!dbPromise) {\n dbPromise = openDb(DATABASE_NAME, DATABASE_VERSION, upgradeDB => {\n // We don't use 'break' in this switch statement, the fall-through\n // behavior is what we want, because if there are multiple versions between\n // the old version and the current version, we want ALL the migrations\n // that correspond to those versions to run, not only the last one.\n // eslint-disable-next-line default-case\n switch (upgradeDB.oldVersion) {\n case 0:\n upgradeDB.createObjectStore(OBJECT_STORE_NAME);\n }\n });\n }\n return dbPromise;\n}\n\n/** Gets record(s) from the objectStore that match the given key. */\nexport async function get(\n appConfig: AppConfig\n): Promise {\n const key = getKey(appConfig);\n const db = await getDbPromise();\n return db\n .transaction(OBJECT_STORE_NAME)\n .objectStore(OBJECT_STORE_NAME)\n .get(key);\n}\n\n/** Assigns or overwrites the record for the given key with the given value. */\nexport async function set(\n appConfig: AppConfig,\n value: ValueType\n): Promise {\n const key = getKey(appConfig);\n const db = await getDbPromise();\n const tx = db.transaction(OBJECT_STORE_NAME, 'readwrite');\n const objectStore = tx.objectStore(OBJECT_STORE_NAME);\n const oldValue = await objectStore.get(key);\n await objectStore.put(value, key);\n await tx.complete;\n\n if (!oldValue || oldValue.fid !== value.fid) {\n fidChanged(appConfig, value.fid);\n }\n\n return value;\n}\n\n/** Removes record(s) from the objectStore that match the given key. */\nexport async function remove(appConfig: AppConfig): Promise {\n const key = getKey(appConfig);\n const db = await getDbPromise();\n const tx = db.transaction(OBJECT_STORE_NAME, 'readwrite');\n await tx.objectStore(OBJECT_STORE_NAME).delete(key);\n await tx.complete;\n}\n\n/**\n * Atomically updates a record with the result of updateFn, which gets\n * called with the current value. If newValue is undefined, the record is\n * deleted instead.\n * @return Updated value\n */\nexport async function update(\n appConfig: AppConfig,\n updateFn: (previousValue: InstallationEntry | undefined) => ValueType\n): Promise {\n const key = getKey(appConfig);\n const db = await getDbPromise();\n const tx = db.transaction(OBJECT_STORE_NAME, 'readwrite');\n const store = tx.objectStore(OBJECT_STORE_NAME);\n const oldValue: InstallationEntry | undefined = await store.get(key);\n const newValue = updateFn(oldValue);\n\n if (newValue === undefined) {\n await store.delete(key);\n } else {\n await store.put(newValue, key);\n }\n await tx.complete;\n\n if (newValue && (!oldValue || oldValue.fid !== newValue.fid)) {\n fidChanged(appConfig, newValue.fid);\n }\n\n return newValue;\n}\n\nexport async function clear(): Promise {\n const db = await getDbPromise();\n const tx = db.transaction(OBJECT_STORE_NAME, 'readwrite');\n await tx.objectStore(OBJECT_STORE_NAME).clear();\n await tx.complete;\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\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 firebase from '@firebase/app';\nimport {\n _FirebaseNamespace,\n FirebaseService\n} from '@firebase/app-types/private';\nimport { Component, ComponentType } from '@firebase/component';\nimport { FirebaseInstallations } from '@firebase/installations-types';\nimport {\n deleteInstallation,\n getId,\n getToken,\n IdChangeCallbackFn,\n IdChangeUnsubscribeFn,\n onIdChange\n} from './functions';\nimport { extractAppConfig } from './helpers/extract-app-config';\nimport { FirebaseDependencies } from './interfaces/firebase-dependencies';\n\nimport { name, version } from '../package.json';\n\nexport function registerInstallations(instance: _FirebaseNamespace): void {\n const installationsName = 'installations';\n\n instance.INTERNAL.registerComponent(\n new Component(\n installationsName,\n container => {\n const app = container.getProvider('app').getImmediate();\n\n // Throws if app isn't configured properly.\n const appConfig = extractAppConfig(app);\n const platformLoggerProvider = container.getProvider('platform-logger');\n const dependencies: FirebaseDependencies = {\n appConfig,\n platformLoggerProvider\n };\n\n const installations: FirebaseInstallations & FirebaseService = {\n app,\n getId: () => getId(dependencies),\n getToken: (forceRefresh?: boolean) =>\n getToken(dependencies, forceRefresh),\n delete: () => deleteInstallation(dependencies),\n onIdChange: (callback: IdChangeCallbackFn): IdChangeUnsubscribeFn =>\n onIdChange(dependencies, callback)\n };\n return installations;\n },\n ComponentType.PUBLIC\n )\n );\n\n instance.registerVersion(name, version);\n}\n\nregisterInstallations(firebase as _FirebaseNamespace);\n\n/**\n * Define extension behavior of `registerInstallations`\n */\ndeclare module '@firebase/app-types' {\n interface FirebaseNamespace {\n installations(app?: FirebaseApp): FirebaseInstallations;\n }\n interface FirebaseApp {\n installations(): FirebaseInstallations;\n }\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\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 { createInstallationRequest } from '../api/create-installation-request';\nimport { AppConfig } from '../interfaces/app-config';\nimport {\n InProgressInstallationEntry,\n InstallationEntry,\n RegisteredInstallationEntry,\n RequestStatus\n} from '../interfaces/installation-entry';\nimport { PENDING_TIMEOUT_MS } from '../util/constants';\nimport { ERROR_FACTORY, ErrorCode, isServerError } from '../util/errors';\nimport { sleep } from '../util/sleep';\nimport { generateFid, INVALID_FID } from './generate-fid';\nimport { remove, set, update } from './idb-manager';\n\nexport interface InstallationEntryWithRegistrationPromise {\n installationEntry: InstallationEntry;\n /** Exist iff the installationEntry is not registered. */\n registrationPromise?: Promise;\n}\n\n/**\n * Updates and returns the InstallationEntry from the database.\n * Also triggers a registration request if it is necessary and possible.\n */\nexport async function getInstallationEntry(\n appConfig: AppConfig\n): Promise {\n let registrationPromise: Promise | undefined;\n\n const installationEntry = await update(appConfig, oldEntry => {\n const installationEntry = updateOrCreateInstallationEntry(oldEntry);\n const entryWithPromise = triggerRegistrationIfNecessary(\n appConfig,\n installationEntry\n );\n registrationPromise = entryWithPromise.registrationPromise;\n return entryWithPromise.installationEntry;\n });\n\n if (installationEntry.fid === INVALID_FID) {\n // FID generation failed. Waiting for the FID from the server.\n return { installationEntry: await registrationPromise! };\n }\n\n return {\n installationEntry,\n registrationPromise\n };\n}\n\n/**\n * Creates a new Installation Entry if one does not exist.\n * Also clears timed out pending requests.\n */\nfunction updateOrCreateInstallationEntry(\n oldEntry: InstallationEntry | undefined\n): InstallationEntry {\n const entry: InstallationEntry = oldEntry || {\n fid: generateFid(),\n registrationStatus: RequestStatus.NOT_STARTED\n };\n\n return clearTimedOutRequest(entry);\n}\n\n/**\n * If the Firebase Installation is not registered yet, this will trigger the\n * registration and return an InProgressInstallationEntry.\n *\n * If registrationPromise does not exist, the installationEntry is guaranteed\n * to be registered.\n */\nfunction triggerRegistrationIfNecessary(\n appConfig: AppConfig,\n installationEntry: InstallationEntry\n): InstallationEntryWithRegistrationPromise {\n if (installationEntry.registrationStatus === RequestStatus.NOT_STARTED) {\n if (!navigator.onLine) {\n // Registration required but app is offline.\n const registrationPromiseWithError = Promise.reject(\n ERROR_FACTORY.create(ErrorCode.APP_OFFLINE)\n );\n return {\n installationEntry,\n registrationPromise: registrationPromiseWithError\n };\n }\n\n // Try registering. Change status to IN_PROGRESS.\n const inProgressEntry: InProgressInstallationEntry = {\n fid: installationEntry.fid,\n registrationStatus: RequestStatus.IN_PROGRESS,\n registrationTime: Date.now()\n };\n const registrationPromise = registerInstallation(\n appConfig,\n inProgressEntry\n );\n return { installationEntry: inProgressEntry, registrationPromise };\n } else if (\n installationEntry.registrationStatus === RequestStatus.IN_PROGRESS\n ) {\n return {\n installationEntry,\n registrationPromise: waitUntilFidRegistration(appConfig)\n };\n } else {\n return { installationEntry };\n }\n}\n\n/** This will be executed only once for each new Firebase Installation. */\nasync function registerInstallation(\n appConfig: AppConfig,\n installationEntry: InProgressInstallationEntry\n): Promise {\n try {\n const registeredInstallationEntry = await createInstallationRequest(\n appConfig,\n installationEntry\n );\n return set(appConfig, registeredInstallationEntry);\n } catch (e) {\n if (isServerError(e) && e.serverCode === 409) {\n // Server returned a \"FID can not be used\" error.\n // Generate a new ID next time.\n await remove(appConfig);\n } else {\n // Registration failed. Set FID as not registered.\n await set(appConfig, {\n fid: installationEntry.fid,\n registrationStatus: RequestStatus.NOT_STARTED\n });\n }\n throw e;\n }\n}\n\n/** Call if FID registration is pending in another request. */\nasync function waitUntilFidRegistration(\n appConfig: AppConfig\n): Promise {\n // Unfortunately, there is no way of reliably observing when a value in\n // IndexedDB changes (yet, see https://github.com/WICG/indexed-db-observers),\n // so we need to poll.\n\n let entry: InstallationEntry = await updateInstallationRequest(appConfig);\n while (entry.registrationStatus === RequestStatus.IN_PROGRESS) {\n // createInstallation request still in progress.\n await sleep(100);\n\n entry = await updateInstallationRequest(appConfig);\n }\n\n if (entry.registrationStatus === RequestStatus.NOT_STARTED) {\n // The request timed out or failed in a different call. Try again.\n const {\n installationEntry,\n registrationPromise\n } = await getInstallationEntry(appConfig);\n\n if (registrationPromise) {\n return registrationPromise;\n } else {\n // if there is no registrationPromise, entry is registered.\n return installationEntry as RegisteredInstallationEntry;\n }\n }\n\n return entry;\n}\n\n/**\n * Called only if there is a CreateInstallation request in progress.\n *\n * Updates the InstallationEntry in the DB based on the status of the\n * CreateInstallation request.\n *\n * Returns the updated InstallationEntry.\n */\nfunction updateInstallationRequest(\n appConfig: AppConfig\n): Promise {\n return update(appConfig, oldEntry => {\n if (!oldEntry) {\n throw ERROR_FACTORY.create(ErrorCode.INSTALLATION_NOT_FOUND);\n }\n return clearTimedOutRequest(oldEntry);\n });\n}\n\nfunction clearTimedOutRequest(entry: InstallationEntry): InstallationEntry {\n if (hasInstallationRequestTimedOut(entry)) {\n return {\n fid: entry.fid,\n registrationStatus: RequestStatus.NOT_STARTED\n };\n }\n\n return entry;\n}\n\nfunction hasInstallationRequestTimedOut(\n installationEntry: InstallationEntry\n): boolean {\n return (\n installationEntry.registrationStatus === RequestStatus.IN_PROGRESS &&\n installationEntry.registrationTime + PENDING_TIMEOUT_MS < Date.now()\n );\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\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 { CreateInstallationResponse } from '../interfaces/api-response';\nimport { AppConfig } from '../interfaces/app-config';\nimport {\n InProgressInstallationEntry,\n RegisteredInstallationEntry,\n RequestStatus\n} from '../interfaces/installation-entry';\nimport { INTERNAL_AUTH_VERSION, PACKAGE_VERSION } from '../util/constants';\nimport {\n extractAuthTokenInfoFromResponse,\n getErrorFromResponse,\n getHeaders,\n getInstallationsEndpoint,\n retryIfServerError\n} from './common';\n\nexport async function createInstallationRequest(\n appConfig: AppConfig,\n { fid }: InProgressInstallationEntry\n): Promise {\n const endpoint = getInstallationsEndpoint(appConfig);\n\n const headers = getHeaders(appConfig);\n const body = {\n fid,\n authVersion: INTERNAL_AUTH_VERSION,\n appId: appConfig.appId,\n sdkVersion: PACKAGE_VERSION\n };\n\n const request: RequestInit = {\n method: 'POST',\n headers,\n body: JSON.stringify(body)\n };\n\n const response = await retryIfServerError(() => fetch(endpoint, request));\n if (response.ok) {\n const responseValue: CreateInstallationResponse = await response.json();\n const registeredInstallationEntry: RegisteredInstallationEntry = {\n fid: responseValue.fid || fid,\n registrationStatus: RequestStatus.COMPLETED,\n refreshToken: responseValue.refreshToken,\n authToken: extractAuthTokenInfoFromResponse(responseValue.authToken)\n };\n return registeredInstallationEntry;\n } else {\n throw await getErrorFromResponse('Create Installation', response);\n }\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\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 { GenerateAuthTokenResponse } from '../interfaces/api-response';\nimport { AppConfig } from '../interfaces/app-config';\nimport { FirebaseDependencies } from '../interfaces/firebase-dependencies';\nimport {\n CompletedAuthToken,\n RegisteredInstallationEntry\n} from '../interfaces/installation-entry';\nimport { PACKAGE_VERSION } from '../util/constants';\nimport {\n extractAuthTokenInfoFromResponse,\n getErrorFromResponse,\n getHeadersWithAuth,\n getInstallationsEndpoint,\n retryIfServerError\n} from './common';\n\nexport async function generateAuthTokenRequest(\n { appConfig, platformLoggerProvider }: FirebaseDependencies,\n installationEntry: RegisteredInstallationEntry\n): Promise {\n const endpoint = getGenerateAuthTokenEndpoint(appConfig, installationEntry);\n\n const headers = getHeadersWithAuth(appConfig, installationEntry);\n\n // If platform logger exists, add the platform info string to the header.\n const platformLogger = platformLoggerProvider.getImmediate({\n optional: true\n });\n if (platformLogger) {\n headers.append('x-firebase-client', platformLogger.getPlatformInfoString());\n }\n\n const body = {\n installation: {\n sdkVersion: PACKAGE_VERSION\n }\n };\n\n const request: RequestInit = {\n method: 'POST',\n headers,\n body: JSON.stringify(body)\n };\n\n const response = await retryIfServerError(() => fetch(endpoint, request));\n if (response.ok) {\n const responseValue: GenerateAuthTokenResponse = await response.json();\n const completedAuthToken: CompletedAuthToken = extractAuthTokenInfoFromResponse(\n responseValue\n );\n return completedAuthToken;\n } else {\n throw await getErrorFromResponse('Generate Auth Token', response);\n }\n}\n\nfunction getGenerateAuthTokenEndpoint(\n appConfig: AppConfig,\n { fid }: RegisteredInstallationEntry\n): string {\n return `${getInstallationsEndpoint(appConfig)}/${fid}/authTokens:generate`;\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\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 { generateAuthTokenRequest } from '../api/generate-auth-token-request';\nimport { AppConfig } from '../interfaces/app-config';\nimport { FirebaseDependencies } from '../interfaces/firebase-dependencies';\nimport {\n AuthToken,\n CompletedAuthToken,\n InProgressAuthToken,\n InstallationEntry,\n RegisteredInstallationEntry,\n RequestStatus\n} from '../interfaces/installation-entry';\nimport { PENDING_TIMEOUT_MS, TOKEN_EXPIRATION_BUFFER } from '../util/constants';\nimport { ERROR_FACTORY, ErrorCode, isServerError } from '../util/errors';\nimport { sleep } from '../util/sleep';\nimport { remove, set, update } from './idb-manager';\n\n/**\n * Returns a valid authentication token for the installation. Generates a new\n * token if one doesn't exist, is expired or about to expire.\n *\n * Should only be called if the Firebase Installation is registered.\n */\nexport async function refreshAuthToken(\n dependencies: FirebaseDependencies,\n forceRefresh = false\n): Promise {\n let tokenPromise: Promise | undefined;\n const entry = await update(dependencies.appConfig, oldEntry => {\n if (!isEntryRegistered(oldEntry)) {\n throw ERROR_FACTORY.create(ErrorCode.NOT_REGISTERED);\n }\n\n const oldAuthToken = oldEntry.authToken;\n if (!forceRefresh && isAuthTokenValid(oldAuthToken)) {\n // There is a valid token in the DB.\n return oldEntry;\n } else if (oldAuthToken.requestStatus === RequestStatus.IN_PROGRESS) {\n // There already is a token request in progress.\n tokenPromise = waitUntilAuthTokenRequest(dependencies, forceRefresh);\n return oldEntry;\n } else {\n // No token or token expired.\n if (!navigator.onLine) {\n throw ERROR_FACTORY.create(ErrorCode.APP_OFFLINE);\n }\n\n const inProgressEntry = makeAuthTokenRequestInProgressEntry(oldEntry);\n tokenPromise = fetchAuthTokenFromServer(dependencies, inProgressEntry);\n return inProgressEntry;\n }\n });\n\n const authToken = tokenPromise\n ? await tokenPromise\n : (entry.authToken as CompletedAuthToken);\n return authToken;\n}\n\n/**\n * Call only if FID is registered and Auth Token request is in progress.\n *\n * Waits until the current pending request finishes. If the request times out,\n * tries once in this thread as well.\n */\nasync function waitUntilAuthTokenRequest(\n dependencies: FirebaseDependencies,\n forceRefresh: boolean\n): Promise {\n // Unfortunately, there is no way of reliably observing when a value in\n // IndexedDB changes (yet, see https://github.com/WICG/indexed-db-observers),\n // so we need to poll.\n\n let entry = await updateAuthTokenRequest(dependencies.appConfig);\n while (entry.authToken.requestStatus === RequestStatus.IN_PROGRESS) {\n // generateAuthToken still in progress.\n await sleep(100);\n\n entry = await updateAuthTokenRequest(dependencies.appConfig);\n }\n\n const authToken = entry.authToken;\n if (authToken.requestStatus === RequestStatus.NOT_STARTED) {\n // The request timed out or failed in a different call. Try again.\n return refreshAuthToken(dependencies, forceRefresh);\n } else {\n return authToken;\n }\n}\n\n/**\n * Called only if there is a GenerateAuthToken request in progress.\n *\n * Updates the InstallationEntry in the DB based on the status of the\n * GenerateAuthToken request.\n *\n * Returns the updated InstallationEntry.\n */\nfunction updateAuthTokenRequest(\n appConfig: AppConfig\n): Promise {\n return update(appConfig, oldEntry => {\n if (!isEntryRegistered(oldEntry)) {\n throw ERROR_FACTORY.create(ErrorCode.NOT_REGISTERED);\n }\n\n const oldAuthToken = oldEntry.authToken;\n if (hasAuthTokenRequestTimedOut(oldAuthToken)) {\n return {\n ...oldEntry,\n authToken: { requestStatus: RequestStatus.NOT_STARTED }\n };\n }\n\n return oldEntry;\n });\n}\n\nasync function fetchAuthTokenFromServer(\n dependencies: FirebaseDependencies,\n installationEntry: RegisteredInstallationEntry\n): Promise {\n try {\n const authToken = await generateAuthTokenRequest(\n dependencies,\n installationEntry\n );\n const updatedInstallationEntry: RegisteredInstallationEntry = {\n ...installationEntry,\n authToken\n };\n await set(dependencies.appConfig, updatedInstallationEntry);\n return authToken;\n } catch (e) {\n if (isServerError(e) && (e.serverCode === 401 || e.serverCode === 404)) {\n // Server returned a \"FID not found\" or a \"Invalid authentication\" error.\n // Generate a new ID next time.\n await remove(dependencies.appConfig);\n } else {\n const updatedInstallationEntry: RegisteredInstallationEntry = {\n ...installationEntry,\n authToken: { requestStatus: RequestStatus.NOT_STARTED }\n };\n await set(dependencies.appConfig, updatedInstallationEntry);\n }\n throw e;\n }\n}\n\nfunction isEntryRegistered(\n installationEntry: InstallationEntry | undefined\n): installationEntry is RegisteredInstallationEntry {\n return (\n installationEntry !== undefined &&\n installationEntry.registrationStatus === RequestStatus.COMPLETED\n );\n}\n\nfunction isAuthTokenValid(authToken: AuthToken): boolean {\n return (\n authToken.requestStatus === RequestStatus.COMPLETED &&\n !isAuthTokenExpired(authToken)\n );\n}\n\nfunction isAuthTokenExpired(authToken: CompletedAuthToken): boolean {\n const now = Date.now();\n return (\n now < authToken.creationTime ||\n authToken.creationTime + authToken.expiresIn < now + TOKEN_EXPIRATION_BUFFER\n );\n}\n\n/** Returns an updated InstallationEntry with an InProgressAuthToken. */\nfunction makeAuthTokenRequestInProgressEntry(\n oldEntry: RegisteredInstallationEntry\n): RegisteredInstallationEntry {\n const inProgressAuthToken: InProgressAuthToken = {\n requestStatus: RequestStatus.IN_PROGRESS,\n requestTime: Date.now()\n };\n return {\n ...oldEntry,\n authToken: inProgressAuthToken\n };\n}\n\nfunction hasAuthTokenRequestTimedOut(authToken: AuthToken): boolean {\n return (\n authToken.requestStatus === RequestStatus.IN_PROGRESS &&\n authToken.requestTime + PENDING_TIMEOUT_MS < Date.now()\n );\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\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 { getInstallationEntry } from '../helpers/get-installation-entry';\nimport { refreshAuthToken } from '../helpers/refresh-auth-token';\nimport { AppConfig } from '../interfaces/app-config';\nimport { FirebaseDependencies } from '../interfaces/firebase-dependencies';\n\nexport async function getToken(\n dependencies: FirebaseDependencies,\n forceRefresh = false\n): Promise {\n await completeInstallationRegistration(dependencies.appConfig);\n\n // At this point we either have a Registered Installation in the DB, or we've\n // already thrown an error.\n const authToken = await refreshAuthToken(dependencies, forceRefresh);\n return authToken.token;\n}\n\nasync function completeInstallationRegistration(\n appConfig: AppConfig\n): Promise {\n const { registrationPromise } = await getInstallationEntry(appConfig);\n\n if (registrationPromise) {\n // A createInstallation request is in progress. Wait until it finishes.\n await registrationPromise;\n }\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\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 { AppConfig } from '../interfaces/app-config';\nimport { RegisteredInstallationEntry } from '../interfaces/installation-entry';\nimport {\n getErrorFromResponse,\n getHeadersWithAuth,\n getInstallationsEndpoint,\n retryIfServerError\n} from './common';\n\nexport async function deleteInstallationRequest(\n appConfig: AppConfig,\n installationEntry: RegisteredInstallationEntry\n): Promise {\n const endpoint = getDeleteEndpoint(appConfig, installationEntry);\n\n const headers = getHeadersWithAuth(appConfig, installationEntry);\n const request: RequestInit = {\n method: 'DELETE',\n headers\n };\n\n const response = await retryIfServerError(() => fetch(endpoint, request));\n if (!response.ok) {\n throw await getErrorFromResponse('Delete Installation', response);\n }\n}\n\nfunction getDeleteEndpoint(\n appConfig: AppConfig,\n { fid }: RegisteredInstallationEntry\n): string {\n return `${getInstallationsEndpoint(appConfig)}/${fid}`;\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\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 { addCallback, removeCallback } from '../helpers/fid-changed';\nimport { FirebaseDependencies } from '../interfaces/firebase-dependencies';\n\nexport type IdChangeCallbackFn = (installationId: string) => void;\nexport type IdChangeUnsubscribeFn = () => void;\n\n/**\n * Sets a new callback that will get called when Installation ID changes.\n * Returns an unsubscribe function that will remove the callback when called.\n */\nexport function onIdChange(\n { appConfig }: FirebaseDependencies,\n callback: IdChangeCallbackFn\n): IdChangeUnsubscribeFn {\n addCallback(appConfig, callback);\n\n return () => {\n removeCallback(appConfig, callback);\n };\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\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 { FirebaseApp, FirebaseOptions } from '@firebase/app-types';\nimport { FirebaseError } from '@firebase/util';\nimport { AppConfig } from '../interfaces/app-config';\nimport { ERROR_FACTORY, ErrorCode } from '../util/errors';\n\nexport function extractAppConfig(app: FirebaseApp): AppConfig {\n if (!app || !app.options) {\n throw getMissingValueError('App Configuration');\n }\n\n if (!app.name) {\n throw getMissingValueError('App Name');\n }\n\n // Required app config keys\n const configKeys: Array = [\n 'projectId',\n 'apiKey',\n 'appId'\n ];\n\n for (const keyName of configKeys) {\n if (!app.options[keyName]) {\n throw getMissingValueError(keyName);\n }\n }\n\n return {\n appName: app.name,\n projectId: app.options.projectId!,\n apiKey: app.options.apiKey!,\n appId: app.options.appId!\n };\n}\n\nfunction getMissingValueError(valueName: string): FirebaseError {\n return ERROR_FACTORY.create(ErrorCode.MISSING_APP_CONFIG_VALUES, {\n valueName\n });\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\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 { getInstallationEntry } from '../helpers/get-installation-entry';\nimport { refreshAuthToken } from '../helpers/refresh-auth-token';\nimport { FirebaseDependencies } from '../interfaces/firebase-dependencies';\n\nexport async function getId(\n dependencies: FirebaseDependencies\n): Promise {\n const { installationEntry, registrationPromise } = await getInstallationEntry(\n dependencies.appConfig\n );\n\n if (registrationPromise) {\n registrationPromise.catch(console.error);\n } else {\n // If the installation is already registered, update the authentication\n // token if needed.\n refreshAuthToken(dependencies).catch(console.error);\n }\n\n return installationEntry.fid;\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\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 { deleteInstallationRequest } from '../api/delete-installation-request';\nimport { remove, update } from '../helpers/idb-manager';\nimport { FirebaseDependencies } from '../interfaces/firebase-dependencies';\nimport { RequestStatus } from '../interfaces/installation-entry';\nimport { ERROR_FACTORY, ErrorCode } from '../util/errors';\n\nexport async function deleteInstallation(\n dependencies: FirebaseDependencies\n): Promise {\n const { appConfig } = dependencies;\n\n const entry = await update(appConfig, oldEntry => {\n if (oldEntry && oldEntry.registrationStatus === RequestStatus.NOT_STARTED) {\n // Delete the unregistered entry without sending a deleteInstallation request.\n return undefined;\n }\n return oldEntry;\n });\n\n if (entry) {\n if (entry.registrationStatus === RequestStatus.IN_PROGRESS) {\n // Can't delete while trying to register.\n throw ERROR_FACTORY.create(ErrorCode.DELETE_PENDING_REGISTRATION);\n } else if (entry.registrationStatus === RequestStatus.COMPLETED) {\n if (!navigator.onLine) {\n throw ERROR_FACTORY.create(ErrorCode.APP_OFFLINE);\n } else {\n await deleteInstallationRequest(appConfig, entry);\n await remove(appConfig);\n }\n }\n }\n}\n","/**\n * @license\n * Copyright 2017 Google Inc.\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 { ErrorFactory, ErrorMap } from '@firebase/util';\n\nexport const enum ErrorCode {\n MISSING_APP_CONFIG_VALUES = 'missing-app-config-values',\n AVAILABLE_IN_WINDOW = 'only-available-in-window',\n AVAILABLE_IN_SW = 'only-available-in-sw',\n PERMISSION_DEFAULT = 'permission-default',\n PERMISSION_BLOCKED = 'permission-blocked',\n UNSUPPORTED_BROWSER = 'unsupported-browser',\n FAILED_DEFAULT_REGISTRATION = 'failed-service-worker-registration',\n TOKEN_SUBSCRIBE_FAILED = 'token-subscribe-failed',\n TOKEN_SUBSCRIBE_NO_TOKEN = 'token-subscribe-no-token',\n TOKEN_UNSUBSCRIBE_FAILED = 'token-unsubscribe-failed',\n TOKEN_UPDATE_FAILED = 'token-update-failed',\n TOKEN_UPDATE_NO_TOKEN = 'token-update-no-token',\n INVALID_BG_HANDLER = 'invalid-bg-handler',\n USE_SW_AFTER_GET_TOKEN = 'use-sw-after-get-token',\n INVALID_SW_REGISTRATION = 'invalid-sw-registration',\n USE_VAPID_KEY_AFTER_GET_TOKEN = 'use-vapid-key-after-get-token',\n INVALID_VAPID_KEY = 'invalid-vapid-key'\n}\n\nexport const ERROR_MAP: ErrorMap = {\n [ErrorCode.MISSING_APP_CONFIG_VALUES]:\n 'Missing App configuration value: \"{$valueName}\"',\n [ErrorCode.AVAILABLE_IN_WINDOW]:\n 'This method is available in a Window context.',\n [ErrorCode.AVAILABLE_IN_SW]:\n 'This method is available in a service worker context.',\n [ErrorCode.PERMISSION_DEFAULT]:\n 'The notification permission was not granted and dismissed instead.',\n [ErrorCode.PERMISSION_BLOCKED]:\n 'The notification permission was not granted and blocked instead.',\n [ErrorCode.UNSUPPORTED_BROWSER]:\n \"This browser doesn't support the API's required to use the firebase SDK.\",\n [ErrorCode.FAILED_DEFAULT_REGISTRATION]:\n 'We are unable to register the default service worker. {$browserErrorMessage}',\n [ErrorCode.TOKEN_SUBSCRIBE_FAILED]:\n 'A problem occured while subscribing the user to FCM: {$errorInfo}',\n [ErrorCode.TOKEN_SUBSCRIBE_NO_TOKEN]:\n 'FCM returned no token when subscribing the user to push.',\n [ErrorCode.TOKEN_UNSUBSCRIBE_FAILED]:\n 'A problem occured while unsubscribing the ' +\n 'user from FCM: {$errorInfo}',\n [ErrorCode.TOKEN_UPDATE_FAILED]:\n 'A problem occured while updating the user from FCM: {$errorInfo}',\n [ErrorCode.TOKEN_UPDATE_NO_TOKEN]:\n 'FCM returned no token when updating the user to push.',\n [ErrorCode.USE_SW_AFTER_GET_TOKEN]:\n 'The useServiceWorker() method may only be called once and must be ' +\n 'called before calling getToken() to ensure your service worker is used.',\n [ErrorCode.INVALID_SW_REGISTRATION]:\n 'The input to useServiceWorker() must be a ServiceWorkerRegistration.',\n [ErrorCode.INVALID_BG_HANDLER]:\n 'The input to setBackgroundMessageHandler() must be a function.',\n [ErrorCode.INVALID_VAPID_KEY]: 'The public VAPID key must be a string.',\n [ErrorCode.USE_VAPID_KEY_AFTER_GET_TOKEN]:\n 'The usePublicVapidKey() method may only be called once and must be ' +\n 'called before calling getToken() to ensure your VAPID key is used.'\n};\n\ninterface ErrorParams {\n [ErrorCode.MISSING_APP_CONFIG_VALUES]: {\n valueName: string;\n };\n [ErrorCode.FAILED_DEFAULT_REGISTRATION]: { browserErrorMessage: string };\n [ErrorCode.TOKEN_SUBSCRIBE_FAILED]: { errorInfo: string };\n [ErrorCode.TOKEN_UNSUBSCRIBE_FAILED]: { errorInfo: string };\n [ErrorCode.TOKEN_UPDATE_FAILED]: { errorInfo: string };\n}\n\nexport const ERROR_FACTORY = new ErrorFactory(\n 'messaging',\n 'Messaging',\n ERROR_MAP\n);\n","/**\n * @license\n * Copyright 2019 Google Inc.\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 { FirebaseApp, FirebaseOptions } from '@firebase/app-types';\nimport { FirebaseError } from '@firebase/util';\nimport { AppConfig } from '../interfaces/app-config';\nimport { ERROR_FACTORY, ErrorCode } from '../util/errors';\n\nexport function extractAppConfig(app: FirebaseApp): AppConfig {\n if (!app || !app.options) {\n throw getMissingValueError('App Configuration Object');\n }\n\n if (!app.name) {\n throw getMissingValueError('App Name');\n }\n\n // Required app config keys\n const configKeys: ReadonlyArray = [\n 'projectId',\n 'apiKey',\n 'appId',\n 'messagingSenderId'\n ];\n\n const { options } = app;\n for (const keyName of configKeys) {\n if (!options[keyName]) {\n throw getMissingValueError(keyName);\n }\n }\n\n return {\n appName: app.name,\n projectId: options.projectId!,\n apiKey: options.apiKey!,\n appId: options.appId!,\n senderId: options.messagingSenderId!\n };\n}\n\nfunction getMissingValueError(valueName: string): FirebaseError {\n return ERROR_FACTORY.create(ErrorCode.MISSING_APP_CONFIG_VALUES, {\n valueName\n });\n}\n","/**\n * @license\n * Copyright 2017 Google Inc.\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\nexport function arrayToBase64(array: Uint8Array | ArrayBuffer): string {\n const uint8Array = new Uint8Array(array);\n const base64String = btoa(String.fromCharCode(...uint8Array));\n return base64String\n .replace(/=/g, '')\n .replace(/\\+/g, '-')\n .replace(/\\//g, '_');\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\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 { openDb, deleteDb } from 'idb';\nimport { TokenDetails } from '../interfaces/token-details';\nimport { arrayToBase64 } from './array-to-base64';\n\n// https://github.com/firebase/firebase-js-sdk/blob/7857c212f944a2a9eb421fd4cb7370181bc034b5/packages/messaging/src/interfaces/token-details.ts\nexport interface V2TokenDetails {\n fcmToken: string;\n swScope: string;\n vapidKey: string | Uint8Array;\n subscription: PushSubscription;\n fcmSenderId: string;\n fcmPushSet: string;\n createTime?: number;\n endpoint?: string;\n auth?: string;\n p256dh?: string;\n}\n\n// https://github.com/firebase/firebase-js-sdk/blob/6b5b15ce4ea3df5df5df8a8b33a4e41e249c7715/packages/messaging/src/interfaces/token-details.ts\nexport interface V3TokenDetails {\n fcmToken: string;\n swScope: string;\n vapidKey: Uint8Array;\n fcmSenderId: string;\n fcmPushSet: string;\n endpoint: string;\n auth: ArrayBuffer;\n p256dh: ArrayBuffer;\n createTime: number;\n}\n\n// https://github.com/firebase/firebase-js-sdk/blob/9567dba664732f681fa7fe60f5b7032bb1daf4c9/packages/messaging/src/interfaces/token-details.ts\nexport interface V4TokenDetails {\n fcmToken: string;\n swScope: string;\n vapidKey: Uint8Array;\n fcmSenderId: string;\n endpoint: string;\n auth: ArrayBufferLike;\n p256dh: ArrayBufferLike;\n createTime: number;\n}\n\nconst OLD_DB_NAME = 'fcm_token_details_db';\n/**\n * The last DB version of 'fcm_token_details_db' was 4. This is one higher,\n * so that the upgrade callback is called for all versions of the old DB.\n */\nconst OLD_DB_VERSION = 5;\nconst OLD_OBJECT_STORE_NAME = 'fcm_token_object_Store';\n\nexport async function migrateOldDatabase(\n senderId: string\n): Promise {\n if ('databases' in indexedDB) {\n // indexedDb.databases() is an IndexedDB v3 API\n // and does not exist in all browsers.\n // TODO: Remove typecast when it lands in TS types.\n const databases = await (indexedDB as {\n databases(): Promise>;\n }).databases();\n const dbNames = databases.map(db => db.name);\n\n if (!dbNames.includes(OLD_DB_NAME)) {\n // old DB didn't exist, no need to open.\n return null;\n }\n }\n\n let tokenDetails: TokenDetails | null = null;\n\n const db = await openDb(OLD_DB_NAME, OLD_DB_VERSION, async db => {\n if (db.oldVersion < 2) {\n // Database too old, skip migration.\n return;\n }\n\n if (!db.objectStoreNames.contains(OLD_OBJECT_STORE_NAME)) {\n // Database did not exist. Nothing to do.\n return;\n }\n\n const objectStore = db.transaction.objectStore(OLD_OBJECT_STORE_NAME);\n const value = await objectStore.index('fcmSenderId').get(senderId);\n await objectStore.clear();\n\n if (!value) {\n // No entry in the database, nothing to migrate.\n return;\n }\n\n if (db.oldVersion === 2) {\n const oldDetails = value as V2TokenDetails;\n\n if (!oldDetails.auth || !oldDetails.p256dh || !oldDetails.endpoint) {\n return;\n }\n\n tokenDetails = {\n token: oldDetails.fcmToken,\n createTime: oldDetails.createTime ?? Date.now(),\n subscriptionOptions: {\n auth: oldDetails.auth,\n p256dh: oldDetails.p256dh,\n endpoint: oldDetails.endpoint,\n swScope: oldDetails.swScope,\n vapidKey:\n typeof oldDetails.vapidKey === 'string'\n ? oldDetails.vapidKey\n : arrayToBase64(oldDetails.vapidKey)\n }\n };\n } else if (db.oldVersion === 3) {\n const oldDetails = value as V3TokenDetails;\n\n tokenDetails = {\n token: oldDetails.fcmToken,\n createTime: oldDetails.createTime,\n subscriptionOptions: {\n auth: arrayToBase64(oldDetails.auth),\n p256dh: arrayToBase64(oldDetails.p256dh),\n endpoint: oldDetails.endpoint,\n swScope: oldDetails.swScope,\n vapidKey: arrayToBase64(oldDetails.vapidKey)\n }\n };\n } else if (db.oldVersion === 4) {\n const oldDetails = value as V4TokenDetails;\n\n tokenDetails = {\n token: oldDetails.fcmToken,\n createTime: oldDetails.createTime,\n subscriptionOptions: {\n auth: arrayToBase64(oldDetails.auth),\n p256dh: arrayToBase64(oldDetails.p256dh),\n endpoint: oldDetails.endpoint,\n swScope: oldDetails.swScope,\n vapidKey: arrayToBase64(oldDetails.vapidKey)\n }\n };\n }\n });\n db.close();\n\n // Delete all old databases.\n await deleteDb(OLD_DB_NAME);\n await deleteDb('fcm_vapid_details_db');\n await deleteDb('undefined');\n\n return checkTokenDetails(tokenDetails) ? tokenDetails : null;\n}\n\nfunction checkTokenDetails(\n tokenDetails: TokenDetails | null\n): tokenDetails is TokenDetails {\n if (!tokenDetails || !tokenDetails.subscriptionOptions) {\n return false;\n }\n const { subscriptionOptions } = tokenDetails;\n return (\n typeof tokenDetails.createTime === 'number' &&\n tokenDetails.createTime > 0 &&\n typeof tokenDetails.token === 'string' &&\n tokenDetails.token.length > 0 &&\n typeof subscriptionOptions.auth === 'string' &&\n subscriptionOptions.auth.length > 0 &&\n typeof subscriptionOptions.p256dh === 'string' &&\n subscriptionOptions.p256dh.length > 0 &&\n typeof subscriptionOptions.endpoint === 'string' &&\n subscriptionOptions.endpoint.length > 0 &&\n typeof subscriptionOptions.swScope === 'string' &&\n subscriptionOptions.swScope.length > 0 &&\n typeof subscriptionOptions.vapidKey === 'string' &&\n subscriptionOptions.vapidKey.length > 0\n );\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\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 { DB, openDb, deleteDb } from 'idb';\nimport { TokenDetails } from '../interfaces/token-details';\nimport { migrateOldDatabase } from './migrate-old-database';\nimport { FirebaseInternalDependencies } from '../interfaces/internal-dependencies';\n\n// Exported for tests.\nexport const DATABASE_NAME = 'firebase-messaging-database';\nconst DATABASE_VERSION = 1;\nconst OBJECT_STORE_NAME = 'firebase-messaging-store';\n\nlet dbPromise: Promise | null = null;\nfunction getDbPromise(): Promise {\n if (!dbPromise) {\n dbPromise = openDb(DATABASE_NAME, DATABASE_VERSION, upgradeDb => {\n // We don't use 'break' in this switch statement, the fall-through\n // behavior is what we want, because if there are multiple versions between\n // the old version and the current version, we want ALL the migrations\n // that correspond to those versions to run, not only the last one.\n // eslint-disable-next-line default-case\n switch (upgradeDb.oldVersion) {\n case 0:\n upgradeDb.createObjectStore(OBJECT_STORE_NAME);\n }\n });\n }\n return dbPromise;\n}\n\n/** Gets record(s) from the objectStore that match the given key. */\nexport async function dbGet(\n firebaseDependencies: FirebaseInternalDependencies\n): Promise {\n const key = getKey(firebaseDependencies);\n const db = await getDbPromise();\n const tokenDetails = await db\n .transaction(OBJECT_STORE_NAME)\n .objectStore(OBJECT_STORE_NAME)\n .get(key);\n\n if (tokenDetails) {\n return tokenDetails;\n } else {\n // Check if there is a tokenDetails object in the old DB.\n const oldTokenDetails = await migrateOldDatabase(\n firebaseDependencies.appConfig.senderId\n );\n if (oldTokenDetails) {\n await dbSet(firebaseDependencies, oldTokenDetails);\n return oldTokenDetails;\n }\n }\n}\n\n/** Assigns or overwrites the record for the given key with the given value. */\nexport async function dbSet(\n firebaseDependencies: FirebaseInternalDependencies,\n tokenDetails: TokenDetails\n): Promise {\n const key = getKey(firebaseDependencies);\n const db = await getDbPromise();\n const tx = db.transaction(OBJECT_STORE_NAME, 'readwrite');\n await tx.objectStore(OBJECT_STORE_NAME).put(tokenDetails, key);\n await tx.complete;\n return tokenDetails;\n}\n\n/** Removes record(s) from the objectStore that match the given key. */\nexport async function dbRemove(\n firebaseDependencies: FirebaseInternalDependencies\n): Promise {\n const key = getKey(firebaseDependencies);\n const db = await getDbPromise();\n const tx = db.transaction(OBJECT_STORE_NAME, 'readwrite');\n await tx.objectStore(OBJECT_STORE_NAME).delete(key);\n await tx.complete;\n}\n\n/** Deletes the DB. Useful for tests. */\nexport async function dbDelete(): Promise {\n if (dbPromise) {\n (await dbPromise).close();\n await deleteDb(DATABASE_NAME);\n dbPromise = null;\n }\n}\n\nfunction getKey({ appConfig }: FirebaseInternalDependencies): string {\n return appConfig.appId;\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\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\nexport const DEFAULT_SW_PATH = '/firebase-messaging-sw.js';\nexport const DEFAULT_SW_SCOPE = '/firebase-cloud-messaging-push-scope';\n\nexport const DEFAULT_VAPID_KEY =\n 'BDOU99-h67HcA6JeFXHbSNMu7e2yNNu3RzoMj8TM4W88jITfq7ZmPvIM1Iv-4_l2LxQcYwhqby2xGpWwzjfAnG4';\n\nexport const ENDPOINT = 'https://fcmregistrations.googleapis.com/v1';\n\n/** Key of FCM Payload in Notification's data field. */\nexport const FCM_MSG = 'FCM_MSG';\n\nexport const CONSOLE_CAMPAIGN_ID = 'google.c.a.c_id';\nexport const CONSOLE_CAMPAIGN_NAME = 'google.c.a.c_l';\nexport const CONSOLE_CAMPAIGN_TIME = 'google.c.a.ts';\n/** Set to '1' if Analytics is enabled for the campaign */\nexport const CONSOLE_CAMPAIGN_ANALYTICS_ENABLED = 'google.c.a.e';\n","/**\n * @license\n * Copyright 2019 Google Inc.\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 { ErrorCode, ERROR_FACTORY } from '../util/errors';\nimport { DEFAULT_VAPID_KEY, ENDPOINT } from '../util/constants';\nimport { TokenDetails, SubscriptionOptions } from '../interfaces/token-details';\nimport { FirebaseInternalDependencies } from '../interfaces/internal-dependencies';\nimport { AppConfig } from '../interfaces/app-config';\n\nexport interface ApiResponse {\n token?: string;\n error?: { message: string };\n}\n\nexport interface ApiRequestBody {\n web: {\n endpoint: string;\n p256dh: string;\n auth: string;\n applicationPubKey?: string;\n };\n}\n\nexport async function requestGetToken(\n firebaseDependencies: FirebaseInternalDependencies,\n subscriptionOptions: SubscriptionOptions\n): Promise {\n const headers = await getHeaders(firebaseDependencies);\n const body = getBody(subscriptionOptions);\n\n const subscribeOptions = {\n method: 'POST',\n headers,\n body: JSON.stringify(body)\n };\n\n let responseData: ApiResponse;\n try {\n const response = await fetch(\n getEndpoint(firebaseDependencies.appConfig),\n subscribeOptions\n );\n responseData = await response.json();\n } catch (err) {\n throw ERROR_FACTORY.create(ErrorCode.TOKEN_SUBSCRIBE_FAILED, {\n errorInfo: err\n });\n }\n\n if (responseData.error) {\n const message = responseData.error.message;\n throw ERROR_FACTORY.create(ErrorCode.TOKEN_SUBSCRIBE_FAILED, {\n errorInfo: message\n });\n }\n\n if (!responseData.token) {\n throw ERROR_FACTORY.create(ErrorCode.TOKEN_SUBSCRIBE_NO_TOKEN);\n }\n\n return responseData.token;\n}\n\nexport async function requestUpdateToken(\n firebaseDependencies: FirebaseInternalDependencies,\n tokenDetails: TokenDetails\n): Promise {\n const headers = await getHeaders(firebaseDependencies);\n const body = getBody(tokenDetails.subscriptionOptions!);\n\n const updateOptions = {\n method: 'PATCH',\n headers,\n body: JSON.stringify(body)\n };\n\n let responseData: ApiResponse;\n try {\n const response = await fetch(\n `${getEndpoint(firebaseDependencies.appConfig)}/${tokenDetails.token}`,\n updateOptions\n );\n responseData = await response.json();\n } catch (err) {\n throw ERROR_FACTORY.create(ErrorCode.TOKEN_UPDATE_FAILED, {\n errorInfo: err\n });\n }\n\n if (responseData.error) {\n const message = responseData.error.message;\n throw ERROR_FACTORY.create(ErrorCode.TOKEN_UPDATE_FAILED, {\n errorInfo: message\n });\n }\n\n if (!responseData.token) {\n throw ERROR_FACTORY.create(ErrorCode.TOKEN_UPDATE_NO_TOKEN);\n }\n\n return responseData.token;\n}\n\nexport async function requestDeleteToken(\n firebaseDependencies: FirebaseInternalDependencies,\n token: string\n): Promise {\n const headers = await getHeaders(firebaseDependencies);\n\n const unsubscribeOptions = {\n method: 'DELETE',\n headers\n };\n\n try {\n const response = await fetch(\n `${getEndpoint(firebaseDependencies.appConfig)}/${token}`,\n unsubscribeOptions\n );\n const responseData: ApiResponse = await response.json();\n if (responseData.error) {\n const message = responseData.error.message;\n throw ERROR_FACTORY.create(ErrorCode.TOKEN_UNSUBSCRIBE_FAILED, {\n errorInfo: message\n });\n }\n } catch (err) {\n throw ERROR_FACTORY.create(ErrorCode.TOKEN_UNSUBSCRIBE_FAILED, {\n errorInfo: err\n });\n }\n}\n\nfunction getEndpoint({ projectId }: AppConfig): string {\n return `${ENDPOINT}/projects/${projectId!}/registrations`;\n}\n\nasync function getHeaders({\n appConfig,\n installations\n}: FirebaseInternalDependencies): Promise {\n const authToken = await installations.getToken();\n\n return new Headers({\n 'Content-Type': 'application/json',\n Accept: 'application/json',\n 'x-goog-api-key': appConfig.apiKey!,\n 'x-goog-firebase-installations-auth': `FIS ${authToken}`\n });\n}\n\nfunction getBody({\n p256dh,\n auth,\n endpoint,\n vapidKey\n}: SubscriptionOptions): ApiRequestBody {\n const body: ApiRequestBody = {\n web: {\n endpoint,\n auth,\n p256dh\n }\n };\n\n if (vapidKey !== DEFAULT_VAPID_KEY) {\n body.web.applicationPubKey = vapidKey;\n }\n\n return body;\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\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 { dbGet, dbSet, dbRemove } from '../helpers/idb-manager';\nimport { FirebaseInternalDependencies } from '../interfaces/internal-dependencies';\nimport { TokenDetails, SubscriptionOptions } from '../interfaces/token-details';\nimport { requestUpdateToken, requestGetToken, requestDeleteToken } from './api';\nimport { arrayToBase64 } from '../helpers/array-to-base64';\nimport { ERROR_FACTORY, ErrorCode } from '../util/errors';\n\n/** UpdateRegistration will be called once every week. */\nconst TOKEN_EXPIRATION_MS = 7 * 24 * 60 * 60 * 1000; // 7 days\n\nexport async function getToken(\n firebaseDependencies: FirebaseInternalDependencies,\n swRegistration: ServiceWorkerRegistration,\n vapidKey: string\n): Promise {\n if (Notification.permission !== 'granted') {\n throw ERROR_FACTORY.create(ErrorCode.PERMISSION_BLOCKED);\n }\n\n // If a PushSubscription exists it's returned, otherwise a new subscription\n // is generated and returned.\n const pushSubscription = await getPushSubscription(swRegistration, vapidKey);\n const tokenDetails = await dbGet(firebaseDependencies);\n\n const subscriptionOptions: SubscriptionOptions = {\n vapidKey,\n swScope: swRegistration.scope,\n endpoint: pushSubscription.endpoint,\n auth: arrayToBase64(pushSubscription.getKey('auth')!),\n p256dh: arrayToBase64(pushSubscription.getKey('p256dh')!)\n };\n\n if (!tokenDetails) {\n // No token, get a new one.\n return getNewToken(firebaseDependencies, subscriptionOptions);\n } else if (\n !isTokenValid(tokenDetails.subscriptionOptions!, subscriptionOptions)\n ) {\n // Invalid token, get a new one.\n try {\n await requestDeleteToken(firebaseDependencies, tokenDetails.token);\n } catch (e) {\n // Suppress errors because of #2364\n console.warn(e);\n }\n\n return getNewToken(firebaseDependencies, subscriptionOptions);\n } else if (Date.now() >= tokenDetails.createTime + TOKEN_EXPIRATION_MS) {\n // Weekly token refresh\n return updateToken(\n {\n token: tokenDetails.token,\n createTime: Date.now(),\n subscriptionOptions\n },\n firebaseDependencies,\n swRegistration\n );\n } else {\n // Valid token, nothing to do.\n return tokenDetails.token;\n }\n}\n\n/**\n * This method deletes the token from the database, unsubscribes the token from\n * FCM, and unregisters the push subscription if it exists.\n */\nexport async function deleteToken(\n firebaseDependencies: FirebaseInternalDependencies,\n swRegistration: ServiceWorkerRegistration\n): Promise {\n const tokenDetails = await dbGet(firebaseDependencies);\n if (tokenDetails) {\n await requestDeleteToken(firebaseDependencies, tokenDetails.token);\n await dbRemove(firebaseDependencies);\n }\n\n // Unsubscribe from the push subscription.\n const pushSubscription = await swRegistration.pushManager.getSubscription();\n if (pushSubscription) {\n return pushSubscription.unsubscribe();\n }\n\n // If there's no SW, consider it a success.\n return true;\n}\n\nasync function updateToken(\n tokenDetails: TokenDetails,\n firebaseDependencies: FirebaseInternalDependencies,\n swRegistration: ServiceWorkerRegistration\n): Promise {\n try {\n const updatedToken = await requestUpdateToken(\n firebaseDependencies,\n tokenDetails\n );\n\n const updatedTokenDetails: TokenDetails = {\n token: updatedToken,\n createTime: Date.now(),\n ...tokenDetails\n };\n\n await dbSet(firebaseDependencies, updatedTokenDetails);\n return updatedToken;\n } catch (e) {\n await deleteToken(firebaseDependencies, swRegistration);\n throw e;\n }\n}\n\nasync function getNewToken(\n firebaseDependencies: FirebaseInternalDependencies,\n subscriptionOptions: SubscriptionOptions\n): Promise {\n const token = await requestGetToken(\n firebaseDependencies,\n subscriptionOptions\n );\n const tokenDetails: TokenDetails = {\n token,\n createTime: Date.now(),\n subscriptionOptions\n };\n await dbSet(firebaseDependencies, tokenDetails);\n return tokenDetails.token;\n}\n\n/**\n * Gets a PushSubscription for the current user.\n */\nasync function getPushSubscription(\n swRegistration: ServiceWorkerRegistration,\n vapidKey: string\n): Promise {\n const subscription = await swRegistration.pushManager.getSubscription();\n if (subscription) {\n return subscription;\n }\n return swRegistration.pushManager.subscribe({\n userVisibleOnly: true,\n applicationServerKey: vapidKey\n });\n}\n\n/**\n * Checks if the saved tokenDetails object matches the configuration provided.\n */\nfunction isTokenValid(\n dbOptions: SubscriptionOptions,\n currentOptions: SubscriptionOptions\n): boolean {\n const isVapidKeyEqual = currentOptions.vapidKey === dbOptions.vapidKey;\n const isEndpointEqual = currentOptions.endpoint === dbOptions.endpoint;\n const isAuthEqual = currentOptions.auth === dbOptions.auth;\n const isP256dhEqual = currentOptions.p256dh === dbOptions.p256dh;\n\n return isVapidKeyEqual && isEndpointEqual && isAuthEqual && isP256dhEqual;\n}\n","/**\n * @license\n * Copyright 2017 Google Inc.\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 { MessagePayload } from './message-payload';\n\nexport enum MessageType {\n PUSH_RECEIVED = 'push-received',\n NOTIFICATION_CLICKED = 'notification-clicked'\n}\n\nexport interface InternalMessage {\n firebaseMessaging: {\n type: MessageType;\n payload: MessagePayload;\n };\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\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 { ConsoleMessageData } from '../interfaces/message-payload';\nimport { CONSOLE_CAMPAIGN_ID } from '../util/constants';\n\nexport function isConsoleMessage(data: unknown): data is ConsoleMessageData {\n // This message has a campaign ID, meaning it was sent using the\n // Firebase Console.\n return typeof data === 'object' && !!data && CONSOLE_CAMPAIGN_ID in data;\n}\n","/**\n * @license\n * Copyright 2017 Google Inc.\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 { getToken, deleteToken } from '../core/token-management';\nimport { FirebaseInternalDependencies } from '../interfaces/internal-dependencies';\nimport { FirebaseMessaging } from '@firebase/messaging-types';\nimport { ERROR_FACTORY, ErrorCode } from '../util/errors';\nimport { NextFn, Observer, Unsubscribe } from '@firebase/util';\nimport { InternalMessage, MessageType } from '../interfaces/internal-message';\nimport {\n CONSOLE_CAMPAIGN_ID,\n CONSOLE_CAMPAIGN_ANALYTICS_ENABLED,\n CONSOLE_CAMPAIGN_NAME,\n CONSOLE_CAMPAIGN_TIME,\n DEFAULT_SW_PATH,\n DEFAULT_SW_SCOPE,\n DEFAULT_VAPID_KEY\n} from '../util/constants';\nimport { FirebaseApp } from '@firebase/app-types';\nimport { ConsoleMessageData } from '../interfaces/message-payload';\nimport { isConsoleMessage } from '../helpers/is-console-message';\nimport { FirebaseService } from '@firebase/app-types/private';\n\nexport class WindowController implements FirebaseMessaging, FirebaseService {\n private vapidKey: string | null = null;\n private swRegistration?: ServiceWorkerRegistration;\n private onMessageCallback: NextFn