{"version":3,"file":"firebase-analytics.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/buffer-to-base64-url-safe.ts","../installations/src/helpers/generate-fid.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","../analytics/src/constants.ts","../analytics/src/helpers.ts","../analytics/src/errors.ts","../analytics/src/factory.ts","../analytics/src/functions.ts","../analytics/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 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\r\n return c > 3 && r && Object.defineProperty(target, key, r), r;\r\n}\r\n\r\nexport function __param(paramIndex, decorator) {\r\n return function (target, key) { decorator(target, key, paramIndex); }\r\n}\r\n\r\nexport function __metadata(metadataKey, metadataValue) {\r\n if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(metadataKey, metadataValue);\r\n}\r\n\r\nexport function __awaiter(thisArg, _arguments, P, generator) {\r\n return new (P || (P = Promise))(function (resolve, reject) {\r\n function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\r\n function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\r\n function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }\r\n step((generator = generator.apply(thisArg, _arguments || [])).next());\r\n });\r\n}\r\n\r\nexport function __generator(thisArg, body) {\r\n var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;\r\n return g = { next: verb(0), \"throw\": verb(1), \"return\": verb(2) }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function() { return this; }), g;\r\n function verb(n) { return function (v) { return step([n, v]); }; }\r\n function step(op) {\r\n if (f) throw new TypeError(\"Generator is already executing.\");\r\n while (_) try {\r\n if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\r\n if (y = 0, t) op = [op[0] & 2, t.value];\r\n switch (op[0]) {\r\n case 0: case 1: t = op; break;\r\n case 4: _.label++; return { value: op[1], done: false };\r\n case 5: _.label++; y = op[1]; op = [0]; continue;\r\n case 7: op = _.ops.pop(); _.trys.pop(); continue;\r\n default:\r\n if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\r\n if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\r\n if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\r\n if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\r\n if (t[2]) _.ops.pop();\r\n _.trys.pop(); continue;\r\n }\r\n op = body.call(thisArg, _);\r\n } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\r\n if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\r\n }\r\n}\r\n\r\nexport function __exportStar(m, exports) {\r\n for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];\r\n}\r\n\r\nexport function __values(o) {\r\n var m = typeof Symbol === \"function\" && o[Symbol.iterator], i = 0;\r\n if (m) return m.call(o);\r\n return {\r\n next: function () {\r\n if (o && i >= o.length) o = void 0;\r\n return { value: o && o[i++], done: !o };\r\n }\r\n };\r\n}\r\n\r\nexport function __read(o, n) {\r\n var m = typeof Symbol === \"function\" && o[Symbol.iterator];\r\n if (!m) return o;\r\n var i = m.call(o), r, ar = [], e;\r\n try {\r\n while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);\r\n }\r\n catch (error) { e = { error: error }; }\r\n finally {\r\n try {\r\n if (r && !r.done && (m = i[\"return\"])) m.call(i);\r\n }\r\n finally { if (e) throw e.error; }\r\n }\r\n return ar;\r\n}\r\n\r\nexport function __spread() {\r\n for (var ar = [], i = 0; i < arguments.length; i++)\r\n ar = ar.concat(__read(arguments[i]));\r\n return ar;\r\n}\r\n\r\nexport function __spreadArrays() {\r\n for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;\r\n for (var r = Array(s), k = 0, i = 0; i < il; i++)\r\n for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)\r\n r[k] = a[j];\r\n return r;\r\n};\r\n\r\nexport function __await(v) {\r\n return this instanceof __await ? (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 } & 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\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 { 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\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 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 ANALYTICS_ID_FIELD = 'measurementId';\n\n// Key to attach FID to in gtag params.\nexport const GA_FID_KEY = 'firebase_id';\nexport const ORIGIN_KEY = 'origin';\n\nexport const GTAG_URL = 'https://www.googletagmanager.com/gtag/js';\n\nexport enum GtagCommand {\n EVENT = 'event',\n SET = 'set',\n CONFIG = 'config'\n}\n\n/*\n * Officially recommended event names for gtag.js\n * Any other string is also allowed.\n */\nexport enum EventName {\n ADD_PAYMENT_INFO = 'add_payment_info',\n ADD_TO_CART = 'add_to_cart',\n ADD_TO_WISHLIST = 'add_to_wishlist',\n BEGIN_CHECKOUT = 'begin_checkout',\n CHECKOUT_PROGRESS = 'checkout_progress',\n EXCEPTION = 'exception',\n GENERATE_LEAD = 'generate_lead',\n LOGIN = 'login',\n PAGE_VIEW = 'page_view',\n PURCHASE = 'purchase',\n REFUND = 'refund',\n REMOVE_FROM_CART = 'remove_from_cart',\n SCREEN_VIEW = 'screen_view',\n SEARCH = 'search',\n SELECT_CONTENT = 'select_content',\n SET_CHECKOUT_OPTION = 'set_checkout_option',\n SHARE = 'share',\n SIGN_UP = 'sign_up',\n TIMING_COMPLETE = 'timing_complete',\n VIEW_ITEM = 'view_item',\n VIEW_ITEM_LIST = 'view_item_list',\n VIEW_PROMOTION = 'view_promotion',\n VIEW_SEARCH_RESULTS = 'view_search_results'\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 } from '@firebase/app-types';\nimport {\n DataLayer,\n Gtag,\n CustomParams,\n ControlParams,\n EventParams\n} from '@firebase/analytics-types';\nimport {\n GtagCommand,\n ANALYTICS_ID_FIELD,\n GA_FID_KEY,\n ORIGIN_KEY,\n GTAG_URL\n} from './constants';\nimport { FirebaseInstallations } from '@firebase/installations-types';\n\n/**\n * Initialize the analytics instance in gtag.js by calling config command with fid.\n *\n * NOTE: We combine analytics initialization and setting fid together because we want fid to be\n * part of the `page_view` event that's sent during the initialization\n * @param app Firebase app\n * @param gtagCore The gtag function that's not wrapped.\n */\nexport async function initializeGAId(\n app: FirebaseApp,\n installations: FirebaseInstallations,\n gtagCore: Gtag\n): Promise {\n const fid = await installations.getId();\n\n // This command initializes gtag.js and only needs to be called once for the entire web app,\n // but since it is idempotent, we can call it multiple times.\n // We keep it together with other initialization logic for better code structure.\n // eslint-disable-next-line @typescript-eslint/no-explicit-any\n gtagCore('js' as any, new Date());\n\n // It should be the first config command called on this GA-ID\n // Initialize this GA-ID and set FID on it using the gtag config API.\n gtagCore(GtagCommand.CONFIG, app.options[ANALYTICS_ID_FIELD]!, {\n [GA_FID_KEY]: fid,\n // guard against developers accidentally setting properties with prefix `firebase_`\n [ORIGIN_KEY]: 'firebase',\n update: true\n });\n}\n\nexport function insertScriptTag(dataLayerName: string): void {\n const script = document.createElement('script');\n // We are not providing an analyticsId in the URL because it would trigger a `page_view`\n // without fid. We will initialize ga-id using gtag (config) command together with fid.\n script.src = `${GTAG_URL}?l=${dataLayerName}`;\n script.async = true;\n document.head.appendChild(script);\n}\n\n/** Get reference to, or create, global datalayer.\n * @param dataLayerName Name of datalayer (most often the default, \"_dataLayer\")\n */\nexport function getOrCreateDataLayer(dataLayerName: string): DataLayer {\n // Check for existing dataLayer and create if needed.\n let dataLayer: DataLayer = [];\n if (Array.isArray(window[dataLayerName])) {\n dataLayer = window[dataLayerName] as DataLayer;\n } else {\n window[dataLayerName] = dataLayer;\n }\n return dataLayer;\n}\n/**\n * Wraps a standard gtag function with extra code to wait for completion of\n * relevant initialization promises before sending requests.\n *\n * @param gtagCore Basic gtag function that just appends to dataLayer\n * @param initializedIdPromisesMap Map of gaIds to their initialization promises\n */\nfunction wrapGtag(\n gtagCore: Gtag,\n initializedIdPromisesMap: { [gaId: string]: Promise }\n): Function {\n return (\n command: 'config' | 'set' | 'event',\n idOrNameOrParams: string | ControlParams,\n gtagParams?: ControlParams & EventParams & CustomParams\n ) => {\n // If event, check that relevant initialization promises have completed.\n if (command === GtagCommand.EVENT) {\n let initializationPromisesToWaitFor: Array> = [];\n // If there's a 'send_to' param, check if any ID specified matches\n // a FID we have begun a fetch on.\n if (gtagParams && gtagParams['send_to']) {\n let gaSendToList: string | string[] = gtagParams['send_to'];\n // Make it an array if is isn't, so it can be dealt with the same way.\n if (!Array.isArray(gaSendToList)) {\n gaSendToList = [gaSendToList];\n }\n for (const sendToId of gaSendToList) {\n const initializationPromise = initializedIdPromisesMap[sendToId];\n // Groups will not be in the map.\n if (initializationPromise) {\n initializationPromisesToWaitFor.push(initializationPromise);\n } else {\n // There is an item in 'send_to' that is not associated\n // directly with an FID, possibly a group. Empty this array\n // and let it get populated below.\n initializationPromisesToWaitFor = [];\n break;\n }\n }\n }\n\n // This will be unpopulated if there was no 'send_to' field , or\n // if not all entries in the 'send_to' field could be mapped to\n // a FID. In these cases, wait on all pending initialization promises.\n if (initializationPromisesToWaitFor.length === 0) {\n for (const idPromise of Object.values(initializedIdPromisesMap)) {\n initializationPromisesToWaitFor.push(idPromise);\n }\n }\n // Run core gtag function with args after all relevant initialization\n // promises have been resolved.\n Promise.all(initializationPromisesToWaitFor)\n // Workaround for http://b/141370449 - third argument cannot be undefined.\n .then(() =>\n gtagCore(\n GtagCommand.EVENT,\n idOrNameOrParams as string,\n gtagParams || {}\n )\n )\n .catch(e => console.error(e));\n } else if (command === GtagCommand.CONFIG) {\n const initializationPromiseToWait =\n initializedIdPromisesMap[idOrNameOrParams as string] ||\n Promise.resolve();\n initializationPromiseToWait\n .then(() => {\n gtagCore(GtagCommand.CONFIG, idOrNameOrParams as string, gtagParams);\n })\n .catch(e => console.error(e));\n } else {\n // SET command.\n // Splitting calls for CONFIG and SET to make it clear which signature\n // Typescript is checking.\n gtagCore(GtagCommand.SET, idOrNameOrParams as CustomParams);\n }\n };\n}\n\n/**\n * Creates global gtag function or wraps existing one if found.\n * This wrapped function attaches Firebase instance ID (FID) to gtag 'config' and\n * 'event' calls that belong to the GAID associated with this Firebase instance.\n *\n * @param initializedIdPromisesMap Map of gaId to initialization promises.\n * @param dataLayerName Name of global GA datalayer array.\n * @param gtagFunctionName Name of global gtag function (\"gtag\" if not user-specified)\n */\nexport function wrapOrCreateGtag(\n initializedIdPromisesMap: { [gaId: string]: Promise },\n dataLayerName: string,\n gtagFunctionName: string\n): {\n gtagCore: Gtag;\n wrappedGtag: Gtag;\n} {\n // Create a basic core gtag function\n let gtagCore: Gtag = function(..._args: unknown[]) {\n // Must push IArguments object, not an array.\n (window[dataLayerName] as DataLayer).push(arguments);\n };\n\n // Replace it with existing one if found\n if (\n window[gtagFunctionName] &&\n typeof window[gtagFunctionName] === 'function'\n ) {\n // @ts-ignore\n gtagCore = window[gtagFunctionName];\n }\n\n window[gtagFunctionName] = wrapGtag(gtagCore, initializedIdPromisesMap);\n\n return {\n gtagCore,\n wrappedGtag: window[gtagFunctionName] as Gtag\n };\n}\n\n/**\n * Returns first script tag in DOM matching our gtag url pattern.\n */\nexport function findGtagScriptOnPage(): HTMLScriptElement | null {\n const scriptTags = window.document.getElementsByTagName('script');\n for (const tag of Object.values(scriptTags)) {\n if (tag.src && tag.src.includes(GTAG_URL)) {\n return tag;\n }\n }\n return null;\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 { ErrorFactory, ErrorMap } from '@firebase/util';\nimport { ANALYTICS_ID_FIELD } from './constants';\n\nexport const enum AnalyticsError {\n NO_GA_ID = 'no-ga-id',\n ALREADY_EXISTS = 'already-exists',\n ALREADY_INITIALIZED = 'already-initialized',\n INTEROP_COMPONENT_REG_FAILED = 'interop-component-reg-failed'\n}\n\nconst ERRORS: ErrorMap = {\n [AnalyticsError.NO_GA_ID]:\n `\"${ANALYTICS_ID_FIELD}\" field is empty in ` +\n 'Firebase config. Firebase Analytics ' +\n 'requires this field to contain a valid measurement ID.',\n [AnalyticsError.ALREADY_EXISTS]:\n 'A Firebase Analytics instance with the measurement ID ${id} ' +\n ' already exists. ' +\n 'Only one Firebase Analytics instance can be created for each measurement ID.',\n [AnalyticsError.ALREADY_INITIALIZED]:\n 'Firebase Analytics has already been initialized.' +\n 'settings() must be called before initializing any Analytics instance' +\n 'or it will have no effect.',\n [AnalyticsError.INTEROP_COMPONENT_REG_FAILED]:\n 'Firebase Analytics Interop Component failed to instantiate'\n};\n\ninterface ErrorParams {\n [AnalyticsError.ALREADY_EXISTS]: { id: string };\n [AnalyticsError.INTEROP_COMPONENT_REG_FAILED]: { reason: Error };\n}\n\nexport const ERROR_FACTORY = new ErrorFactory(\n 'analytics',\n 'Analytics',\n ERRORS\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 {\n FirebaseAnalytics,\n Gtag,\n SettingsOptions\n} from '@firebase/analytics-types';\nimport {\n logEvent,\n setCurrentScreen,\n setUserId,\n setUserProperties,\n setAnalyticsCollectionEnabled\n} from './functions';\nimport {\n initializeGAId,\n insertScriptTag,\n getOrCreateDataLayer,\n wrapOrCreateGtag,\n findGtagScriptOnPage\n} from './helpers';\nimport { ANALYTICS_ID_FIELD } from './constants';\nimport { AnalyticsError, ERROR_FACTORY } from './errors';\nimport { FirebaseApp } from '@firebase/app-types';\nimport { FirebaseInstallations } from '@firebase/installations-types';\n\n/**\n * Maps gaId to FID fetch promises.\n */\nlet initializedIdPromisesMap: { [gaId: string]: Promise } = {};\n\n/**\n * Name for window global data layer array used by GA: defaults to 'dataLayer'.\n */\nlet dataLayerName: string = 'dataLayer';\n\n/**\n * Name for window global gtag function used by GA: defaults to 'gtag'.\n */\nlet gtagName: string = 'gtag';\n\n/**\n * Reproduction of standard gtag function or reference to existing\n * gtag function on window object.\n */\nlet gtagCoreFunction: Gtag;\n\n/**\n * Wrapper around gtag function that ensures FID is sent with all\n * relevant event and config calls.\n */\nlet wrappedGtagFunction: Gtag;\n\n/**\n * Flag to ensure page initialization steps (creation or wrapping of\n * dataLayer and gtag script) are only run once per page load.\n */\nlet globalInitDone: boolean = false;\n\n/**\n * For testing\n */\nexport function resetGlobalVars(\n newGlobalInitDone = false,\n newGaInitializedPromise = {}\n): void {\n globalInitDone = newGlobalInitDone;\n initializedIdPromisesMap = newGaInitializedPromise;\n dataLayerName = 'dataLayer';\n gtagName = 'gtag';\n}\n\n/**\n * This must be run before calling firebase.analytics() or it won't\n * have any effect.\n * @param options Custom gtag and dataLayer names.\n */\nexport function settings(options: SettingsOptions): void {\n if (globalInitDone) {\n throw ERROR_FACTORY.create(AnalyticsError.ALREADY_INITIALIZED);\n }\n if (options.dataLayerName) {\n dataLayerName = options.dataLayerName;\n }\n if (options.gtagName) {\n gtagName = options.gtagName;\n }\n}\n\nexport function factory(\n app: FirebaseApp,\n installations: FirebaseInstallations\n): FirebaseAnalytics {\n const analyticsId = app.options[ANALYTICS_ID_FIELD];\n if (!analyticsId) {\n throw ERROR_FACTORY.create(AnalyticsError.NO_GA_ID);\n }\n\n if (initializedIdPromisesMap[analyticsId] != null) {\n throw ERROR_FACTORY.create(AnalyticsError.ALREADY_EXISTS, {\n id: analyticsId\n });\n }\n\n if (!globalInitDone) {\n // Steps here should only be done once per page: creation or wrapping\n // of dataLayer and global gtag function.\n\n // Detect if user has already put the gtag