{"version":3,"file":"firebase-performance.js","sources":["../../node_modules/tslib/tslib.es6.js","../util/src/errors.ts","../../node_modules/idb/lib/idb.mjs","../installations/src/util/constants.ts","../installations/src/util/errors.ts","../installations/src/helpers/extract-app-config.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/helpers/idb-manager.ts","../logger/src/logger.ts","../installations/src/helpers/get-installation-entry.ts","../installations/src/api/create-installation.ts","../installations/src/api/generate-auth-token.ts","../installations/src/functions/get-token.ts","../installations/src/api/delete-installation.ts","../installations/src/index.ts","../installations/src/functions/get-id.ts","../installations/src/functions/delete-installation.ts","../performance/src/services/api_service.ts","../performance/src/services/settings_service.ts","../performance/src/constants.ts","../performance/src/utils/errors.ts","../performance/src/services/iid_service.ts","../performance/src/utils/attributes_utils.ts","../performance/src/utils/console_logger.ts","../performance/src/services/remote_config_service.ts","../performance/src/services/initialization_service.ts","../performance/src/services/cc_service.ts","../performance/src/services/perf_logger.ts","../performance/src/resources/trace.ts","../performance/src/resources/network_request.ts","../performance/src/services/oob_resources_service.ts","../performance/src/controllers/perf.ts","../performance/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++) if (e.indexOf(p[i]) < 0)\r\n t[p[i]] = s[p[i]];\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 __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 constructor(\n private readonly service: string,\n private readonly serviceName: string,\n private readonly errors: ErrorMap\n ) {}\n\n create(code: ErrorCode, data: ErrorData = {}): FirebaseError {\n const fullCode = `${this.service}/${code}`;\n const template = this.errors[code];\n\n const message = template ? replaceTemplate(template, data) : 'Error';\n // Service Name: Error message (service/code).\n const fullMessage = `${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(data)) {\n if (key.slice(-1) !== '_') {\n if (key in error) {\n console.warn(\n `Overwriting FirebaseError base field \"${key}\" can cause unexpected behavior.`\n );\n }\n error[key] = data[key];\n }\n }\n\n return error;\n }\n}\n\nfunction replaceTemplate(template: string, data: ErrorData): string {\n return template.replace(PATTERN, (_, key) => {\n const value = data[key];\n return value != null ? value.toString() : `<${key}?>`;\n });\n}\n\nconst PATTERN = /\\{\\$([^}]+)}/g;\n","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\nexport const PENDING_TIMEOUT_MS = 10000;\n\nexport const PACKAGE_VERSION = 'w:__VERSION__'; // Will be replaced by Rollup\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 CREATE_INSTALLATION_FAILED = 'create-installation-failed',\n GENERATE_TOKEN_FAILED = 'generate-token-failed',\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]: 'Missing App configuration values.',\n [ErrorCode.CREATE_INSTALLATION_FAILED]:\n 'Could not register Firebase Installation.',\n [ErrorCode.GENERATE_TOKEN_FAILED]: 'Could not generate Auth Token.',\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\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 { FirebaseApp } from '@firebase/app-types';\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 ERROR_FACTORY.create(ErrorCode.MISSING_APP_CONFIG_VALUES);\n }\n\n const appName = app.name;\n const { projectId, apiKey, appId } = app.options;\n\n if (!appName || !projectId || !apiKey || !appId) {\n throw ERROR_FACTORY.create(ErrorCode.MISSING_APP_CONFIG_VALUES);\n }\n\n return { appName, projectId, apiKey, 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 { 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 = 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 ErrorData {\n code: number;\n message: string;\n status: string;\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(\n buffer: ArrayBuffer | Uint8Array\n): string {\n const array = buffer instanceof Uint8Array ? buffer : new Uint8Array(buffer);\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\n/** Generates a new FID using random values from Web Crypto API. */\nexport function generateFid(): string {\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 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 return encode(fidByteArray);\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 { DB, openDb } from 'idb';\nimport { AppConfig } from '../interfaces/app-config';\n\nconst DATABASE_NAME = 'firebase-installations-database';\nconst DATABASE_VERSION = 1;\nconst OBJECT_STORE_NAME = 'firebase-installations-store';\n\nconst dbPromise: Promise = openDb(\n DATABASE_NAME,\n DATABASE_VERSION,\n 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 switch (upgradeDB.oldVersion) {\n case 0:\n upgradeDB.createObjectStore(OBJECT_STORE_NAME);\n }\n }\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 dbPromise;\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 dbPromise;\n const tx = db.transaction(OBJECT_STORE_NAME, 'readwrite');\n tx.objectStore(OBJECT_STORE_NAME).put(value, key);\n await tx.complete;\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 dbPromise;\n const tx = db.transaction(OBJECT_STORE_NAME, 'readwrite');\n tx.objectStore(OBJECT_STORE_NAME).delete(key);\n return 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: OldType | undefined) => NewType\n): Promise {\n const key = getKey(appConfig);\n const db = await dbPromise;\n const tx = db.transaction(OBJECT_STORE_NAME, 'readwrite');\n const store = tx.objectStore(OBJECT_STORE_NAME);\n const oldValue = await store.get(key);\n const newValue = updateFn(oldValue);\n\n if (newValue === oldValue) {\n return newValue;\n }\n\n if (newValue === undefined) {\n store.delete(key);\n } else {\n store.put(newValue, key);\n }\n\n await tx.complete;\n return newValue;\n}\n\nexport async function clear(): Promise {\n const db = await dbPromise;\n const tx = db.transaction(OBJECT_STORE_NAME, 'readwrite');\n tx.objectStore(OBJECT_STORE_NAME).clear();\n return tx.complete;\n}\n\nfunction getKey(appConfig: AppConfig): string {\n return `${appConfig.appName}!${appConfig.appId}`;\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\n/**\n * A container for all of the Logger instances\n */\nexport const instances: Logger[] = [];\n\n/**\n * The JS SDK supports 5 log levels and also allows a user the ability to\n * silence the logs altogether.\n *\n * The order is a follows:\n * DEBUG < VERBOSE < INFO < WARN < ERROR\n *\n * All of the log types above the current log level will be captured (i.e. if\n * you set the log level to `INFO`, errors will still be logged, but `DEBUG` and\n * `VERBOSE` logs will not)\n */\nexport enum LogLevel {\n DEBUG,\n VERBOSE,\n INFO,\n WARN,\n ERROR,\n SILENT\n}\n\n/**\n * The default log level\n */\nconst defaultLogLevel: LogLevel = LogLevel.INFO;\n\n/**\n * We allow users the ability to pass their own log handler. We will pass the\n * type of log, the current log level, and any other arguments passed (i.e. the\n * messages that the user wants to log) to this function.\n */\nexport type LogHandler = (\n loggerInstance: Logger,\n logType: LogLevel,\n ...args: any[]\n) => void;\n\n/**\n * The default log handler will forward DEBUG, VERBOSE, INFO, WARN, and ERROR\n * messages on to their corresponding console counterparts (if the log method\n * is supported by the current log level)\n */\nconst defaultLogHandler: LogHandler = (instance, logType, ...args) => {\n if (logType < instance.logLevel) return;\n const now = new Date().toISOString();\n switch (logType) {\n /**\n * By default, `console.debug` is not displayed in the developer console (in\n * chrome). To avoid forcing users to have to opt-in to these logs twice\n * (i.e. once for firebase, and once in the console), we are sending `DEBUG`\n * logs to the `console.log` function.\n */\n case LogLevel.DEBUG:\n console.log(`[${now}] ${instance.name}:`, ...args);\n break;\n case LogLevel.VERBOSE:\n console.log(`[${now}] ${instance.name}:`, ...args);\n break;\n case LogLevel.INFO:\n console.info(`[${now}] ${instance.name}:`, ...args);\n break;\n case LogLevel.WARN:\n console.warn(`[${now}] ${instance.name}:`, ...args);\n break;\n case LogLevel.ERROR:\n console.error(`[${now}] ${instance.name}:`, ...args);\n break;\n default:\n throw new Error(\n `Attempted to log a message with an invalid logType (value: ${logType})`\n );\n }\n};\n\nexport class Logger {\n /**\n * Gives you an instance of a Logger to capture messages according to\n * Firebase's logging scheme.\n *\n * @param name The name that the logs will be associated with\n */\n constructor(public name: string) {\n /**\n * Capture the current instance for later use\n */\n instances.push(this);\n }\n\n /**\n * The log level of the given Logger instance.\n */\n private _logLevel = defaultLogLevel;\n get logLevel(): LogLevel {\n return this._logLevel;\n }\n set logLevel(val: LogLevel) {\n if (!(val in LogLevel)) {\n throw new TypeError('Invalid value assigned to `logLevel`');\n }\n this._logLevel = val;\n }\n\n /**\n * The log handler for the Logger instance.\n */\n private _logHandler: LogHandler = defaultLogHandler;\n get logHandler(): LogHandler {\n return this._logHandler;\n }\n set logHandler(val: LogHandler) {\n if (typeof val !== 'function') {\n throw new TypeError('Value assigned to `logHandler` must be a function');\n }\n this._logHandler = val;\n }\n\n /**\n * The functions below are all based on the `console` interface\n */\n\n debug(...args) {\n this._logHandler(this, LogLevel.DEBUG, ...args);\n }\n log(...args) {\n this._logHandler(this, LogLevel.VERBOSE, ...args);\n }\n info(...args) {\n this._logHandler(this, LogLevel.INFO, ...args);\n }\n warn(...args) {\n this._logHandler(this, LogLevel.WARN, ...args);\n }\n error(...args) {\n this._logHandler(this, LogLevel.ERROR, ...args);\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 { createInstallation } from '../api/create-installation';\nimport { AppConfig } from '../interfaces/app-config';\nimport {\n InProgressInstallationEntry,\n InstallationEntry,\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 } from './generate-fid';\nimport { remove, set, update } from './idb-manager';\n\nexport interface InstallationEntryWithRegistrationPromise {\n installationEntry: InstallationEntry;\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 return {\n installationEntry: await update(\n appConfig,\n (oldEntry?: InstallationEntry): InstallationEntry => {\n const installationEntry = updateOrCreateFid(oldEntry);\n const entryWithPromise = triggerRegistrationIfNecessary(\n appConfig,\n installationEntry\n );\n registrationPromise = entryWithPromise.registrationPromise;\n return entryWithPromise.installationEntry;\n }\n ),\n registrationPromise\n };\n}\n\nfunction updateOrCreateFid(\n oldEntry: InstallationEntry | undefined\n): InstallationEntry {\n const entry: InstallationEntry = oldEntry || {\n fid: generateFid(),\n registrationStatus: RequestStatus.NOT_STARTED\n };\n\n if (hasInstallationRequestTimedOut(entry)) {\n return {\n fid: entry.fid,\n registrationStatus: RequestStatus.NOT_STARTED\n };\n }\n\n return entry;\n}\n\n/**\n * If the Firebase Installation is not registered yet, this will trigger the registration\n * and return an InProgressInstallationEntry.\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 createInstallation(\n appConfig,\n installationEntry\n );\n await 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. */\nasync function waitUntilFidRegistration(appConfig: AppConfig): 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 throw ERROR_FACTORY.create(ErrorCode.CREATE_INSTALLATION_FAILED);\n }\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(\n appConfig,\n (oldEntry?: InstallationEntry): InstallationEntry => {\n if (!oldEntry) {\n throw ERROR_FACTORY.create(ErrorCode.INSTALLATION_NOT_FOUND);\n }\n\n if (hasInstallationRequestTimedOut(oldEntry)) {\n return {\n fid: oldEntry.fid,\n registrationStatus: RequestStatus.NOT_STARTED\n };\n }\n\n return oldEntry;\n }\n );\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} from './common';\n\nexport async function createInstallation(\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 fetch(endpoint, request);\n if (response.ok) {\n const responseValue: CreateInstallationResponse = await response.json();\n const registeredInstallationEntry: RegisteredInstallationEntry = {\n fid,\n registrationStatus: RequestStatus.COMPLETED,\n refreshToken: responseValue.refreshToken,\n authToken: extractAuthTokenInfoFromResponse(responseValue.authToken)\n };\n return registeredInstallationEntry;\n } else {\n throw 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 {\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} from './common';\n\nexport async function generateAuthToken(\n appConfig: AppConfig,\n installationEntry: RegisteredInstallationEntry\n): Promise {\n const endpoint = getGenerateAuthTokenEndpoint(appConfig, installationEntry);\n\n const headers = getHeadersWithAuth(appConfig, installationEntry);\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 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 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 { FirebaseApp } from '@firebase/app-types';\nimport { generateAuthToken } from '../api/generate-auth-token';\nimport { extractAppConfig } from '../helpers/extract-app-config';\nimport { getInstallationEntry } from '../helpers/get-installation-entry';\nimport { remove, set, update } from '../helpers/idb-manager';\nimport { AppConfig } from '../interfaces/app-config';\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';\n\nexport async function getToken(app: FirebaseApp): Promise {\n const appConfig = extractAppConfig(app);\n\n await completeInstallationRegistration(appConfig);\n\n // At this point we either have a Registered Installation in the DB, or we've\n // already thrown an error.\n return fetchAuthToken(appConfig);\n}\n\nasync function completeInstallationRegistration(\n appConfig: AppConfig\n): Promise {\n const { installationEntry, registrationPromise } = await getInstallationEntry(\n appConfig\n );\n\n if (registrationPromise) {\n // A createInstallation request is in progress. Wait until it finishes.\n await registrationPromise;\n } else if (installationEntry.registrationStatus !== RequestStatus.COMPLETED) {\n // Installation ID can't be registered.\n throw ERROR_FACTORY.create(ErrorCode.CREATE_INSTALLATION_FAILED);\n }\n}\n\nasync function fetchAuthToken(appConfig: AppConfig): Promise {\n let tokenPromise: Promise | undefined;\n const entry = await update(\n appConfig,\n (oldEntry?: InstallationEntry): RegisteredInstallationEntry => {\n if (!isEntryRegistered(oldEntry)) {\n throw ERROR_FACTORY.create(ErrorCode.NOT_REGISTERED);\n }\n\n const oldAuthToken = oldEntry.authToken;\n if (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(appConfig);\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(appConfig, inProgressEntry);\n return inProgressEntry;\n }\n }\n );\n\n const authToken: CompletedAuthToken = tokenPromise\n ? await tokenPromise\n : (entry.authToken as CompletedAuthToken);\n return authToken.token;\n}\n\n/**\n * Call only if FID is registered and Auth Token request is in progress.\n */\nasync function waitUntilAuthTokenRequest(\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 = await updateAuthTokenRequest(appConfig);\n while (entry.authToken.requestStatus === RequestStatus.IN_PROGRESS) {\n // generateAuthToken still in progress.\n await sleep(100);\n\n entry = await updateAuthTokenRequest(appConfig);\n }\n\n const authToken = entry.authToken;\n if (authToken.requestStatus === RequestStatus.NOT_STARTED) {\n throw ERROR_FACTORY.create(ErrorCode.GENERATE_TOKEN_FAILED);\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(\n appConfig,\n (oldEntry?: InstallationEntry): RegisteredInstallationEntry => {\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}\n\nasync function fetchAuthTokenFromServer(\n appConfig: AppConfig,\n installationEntry: RegisteredInstallationEntry\n): Promise {\n try {\n const authToken = await generateAuthToken(appConfig, installationEntry);\n const updatedInstallationEntry: RegisteredInstallationEntry = {\n ...installationEntry,\n authToken\n };\n await set(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(appConfig);\n } else {\n const updatedInstallationEntry: RegisteredInstallationEntry = {\n ...installationEntry,\n authToken: { requestStatus: RequestStatus.NOT_STARTED }\n };\n await set(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 { AppConfig } from '../interfaces/app-config';\nimport { RegisteredInstallationEntry } from '../interfaces/installation-entry';\nimport {\n getErrorFromResponse,\n getHeadersWithAuth,\n getInstallationsEndpoint\n} from './common';\n\nexport async function deleteInstallation(\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 fetch(endpoint, request);\n if (!response.ok) {\n throw 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 firebase from '@firebase/app';\nimport {\n _FirebaseNamespace,\n FirebaseServiceFactory\n} from '@firebase/app-types/private';\nimport { FirebaseInstallations } from '@firebase/installations-types';\n\nimport { deleteInstallation, getId, getToken } from './functions';\nimport { extractAppConfig } from './helpers/extract-app-config';\n\nexport function registerInstallations(instance: _FirebaseNamespace): void {\n const installationsName = 'installations';\n\n const factoryMethod: FirebaseServiceFactory = app => {\n // Throws if app isn't configured properly.\n extractAppConfig(app);\n\n return {\n app,\n getId: () => getId(app),\n getToken: () => getToken(app),\n delete: () => deleteInstallation(app)\n };\n };\n\n instance.INTERNAL.registerService(installationsName, factoryMethod);\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 { FirebaseApp } from '@firebase/app-types';\nimport { extractAppConfig } from '../helpers/extract-app-config';\nimport { getInstallationEntry } from '../helpers/get-installation-entry';\n\nexport async function getId(app: FirebaseApp): Promise {\n const appConfig = extractAppConfig(app);\n const { installationEntry, registrationPromise } = await getInstallationEntry(\n appConfig\n );\n if (registrationPromise) {\n // Suppress registration errors as they are not a problem for getId.\n registrationPromise.catch(() => {});\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 { FirebaseApp } from '@firebase/app-types';\nimport { deleteInstallation as deleteInstallationRequest } from '../api/delete-installation';\nimport { extractAppConfig } from '../helpers/extract-app-config';\nimport { remove, update } from '../helpers/idb-manager';\nimport {\n InProgressInstallationEntry,\n InstallationEntry,\n RegisteredInstallationEntry,\n RequestStatus\n} from '../interfaces/installation-entry';\nimport { ERROR_FACTORY, ErrorCode } from '../util/errors';\n\nexport async function deleteInstallation(app: FirebaseApp): Promise {\n const appConfig = extractAppConfig(app);\n\n const entry = await update(\n appConfig,\n (\n oldEntry?: InstallationEntry\n ):\n | InProgressInstallationEntry\n | RegisteredInstallationEntry\n | undefined => {\n if (\n oldEntry &&\n oldEntry.registrationStatus === RequestStatus.NOT_STARTED\n ) {\n // Delete the unregistered entry without sending a deleteInstallation request.\n return undefined;\n }\n return oldEntry;\n }\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\nimport { ERROR_FACTORY, ErrorCode } from '../utils/errors';\n\ndeclare global {\n interface Window {\n PerformanceObserver: typeof PerformanceObserver;\n perfMetrics?: { onFirstInputDelay: Function };\n }\n}\n\nlet apiInstance: Api | undefined;\nlet windowInstance: Window | undefined;\n\nexport type EntryType =\n | 'mark'\n | 'measure'\n | 'paint'\n | 'resource'\n | 'frame'\n | 'navigation';\n\n/**\n * This class holds a reference to various browser related objects injected by set methods.\n */\nexport class Api {\n private performance: Performance;\n /** PreformanceObserver constructor function. */\n private PerformanceObserver: typeof PerformanceObserver;\n private windowLocation: Location;\n onFirstInputDelay?: Function;\n localStorage: Storage;\n document: Document;\n navigator: Navigator;\n\n constructor(window?: Window) {\n if (!window) {\n throw ERROR_FACTORY.create(ErrorCode.NO_WINDOW);\n }\n this.performance = window.performance;\n this.PerformanceObserver = window.PerformanceObserver;\n this.windowLocation = window.location;\n this.navigator = window.navigator;\n this.document = window.document;\n this.localStorage = window.localStorage;\n if (window.perfMetrics && window.perfMetrics.onFirstInputDelay) {\n this.onFirstInputDelay = window.perfMetrics.onFirstInputDelay;\n }\n }\n\n getUrl(): string {\n // Do not capture the string query part of url.\n return this.windowLocation.href.split('?')[0];\n }\n\n mark(name: string): void {\n if (!this.performance || !this.performance.mark) return;\n this.performance.mark(name);\n }\n\n measure(measureName: string, mark1: string, mark2: string): void {\n if (!this.performance || !this.performance.measure) return;\n this.performance.measure(measureName, mark1, mark2);\n }\n\n getEntriesByType(type: EntryType): PerformanceEntry[] {\n if (!this.performance || !this.performance.getEntriesByType) return [];\n return this.performance.getEntriesByType(type);\n }\n\n getEntriesByName(name: string): PerformanceEntry[] {\n if (!this.performance || !this.performance.getEntriesByName) return [];\n return this.performance.getEntriesByName(name);\n }\n\n getTimeOrigin(): number {\n // Polyfill the time origin with performance.timing.navigationStart.\n return (\n this.performance &&\n (this.performance.timeOrigin || this.performance.timing.navigationStart)\n );\n }\n\n setupObserver(\n entryType: EntryType,\n callback: (entry: PerformanceEntry) => void\n ): void {\n if (!this.PerformanceObserver) return;\n const observer = new this.PerformanceObserver(list => {\n for (const entry of list.getEntries()) {\n // `entry` is a PerformanceEntry instance.\n callback(entry);\n }\n });\n\n // Start observing the entry types you care about.\n observer.observe({ entryTypes: [entryType] });\n }\n\n static getInstance(): Api {\n if (apiInstance === undefined) {\n apiInstance = new Api(windowInstance);\n }\n return apiInstance;\n }\n}\n\nexport function setupApi(window: Window): void {\n windowInstance = window;\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 { ERROR_FACTORY, ErrorCode } from '../utils/errors';\n\nlet settingsServiceInstance: SettingsService | undefined;\n\nexport class SettingsService {\n // The variable which controls logging of automatic traces and HTTP/S network monitoring.\n instrumentationEnabled = true;\n\n // The variable which controls logging of custom traces.\n dataCollectionEnabled = true;\n\n // Configuration flags set through remote config.\n loggingEnabled = false;\n // Sampling rate between 0 and 1.\n tracesSamplingRate = 1;\n networkRequestsSamplingRate = 1;\n // Address of logging service.\n logEndPointUrl =\n 'https://firebaselogging.googleapis.com/v0cc/log?format=json_proto';\n logSource = 462;\n\n // Flags which control per session logging of traces and network requests.\n logTraceAfterSampling = false;\n logNetworkAfterSampling = false;\n\n // TTL of config retrieved from remote config in hours.\n configTimeToLive = 12;\n\n firebaseAppInstance!: FirebaseApp;\n\n getAppId(): string {\n const appId =\n this.firebaseAppInstance &&\n this.firebaseAppInstance.options &&\n this.firebaseAppInstance.options.appId;\n if (!appId) {\n throw ERROR_FACTORY.create(ErrorCode.NO_APP_ID);\n }\n return appId;\n }\n\n getProjectId(): string {\n const projectId =\n this.firebaseAppInstance &&\n this.firebaseAppInstance.options &&\n this.firebaseAppInstance.options.projectId;\n if (!projectId) {\n throw ERROR_FACTORY.create(ErrorCode.NO_PROJECT_ID);\n }\n return projectId;\n }\n\n getApiKey(): string {\n const apiKey =\n this.firebaseAppInstance &&\n this.firebaseAppInstance.options &&\n this.firebaseAppInstance.options.apiKey;\n if (!apiKey) {\n throw ERROR_FACTORY.create(ErrorCode.NO_API_KEY);\n }\n return apiKey;\n }\n\n static getInstance(): SettingsService {\n if (settingsServiceInstance === undefined) {\n settingsServiceInstance = new SettingsService();\n }\n return settingsServiceInstance;\n }\n}\n","/**\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 const SDK_VERSION = '';\n/** The prefix for start User Timing marks used for creating Traces. */\nexport const TRACE_START_MARK_PREFIX = 'FB-PERF-TRACE-START';\n/** The prefix for stop User Timing marks used for creating Traces. */\nexport const TRACE_STOP_MARK_PREFIX = 'FB-PERF-TRACE-STOP';\n/** The prefix for User Timing measure used for creating Traces. */\nexport const TRACE_MEASURE_PREFIX = 'FB-PERF-TRACE-MEASURE';\n/** The prefix for out of the box page load Trace name. */\nexport const OOB_TRACE_PAGE_LOAD_PREFIX = '_wt_';\n\nexport const FIRST_PAINT_COUNTER_NAME = '_fp';\n\nexport const FIRST_CONTENTFUL_PAINT_COUNTER_NAME = '_fcp';\n\nexport const FIRST_INPUT_DELAY_COUNTER_NAME = '_fid';\n\nexport const CONFIG_LOCAL_STORAGE_KEY = '@firebase/performance/config';\n\nexport const CONFIG_EXPIRY_LOCAL_STORAGE_KEY =\n '@firebase/performance/configexpire';\n\nexport const SERVICE = 'performance';\nexport const SERVICE_NAME = 'Performance';\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 } from '@firebase/util';\nimport { SERVICE, SERVICE_NAME } from '../constants';\n\nexport const enum ErrorCode {\n TRACE_STARTED_BEFORE = 'trace started',\n TRACE_STOPPED_BEFORE = 'trace stopped',\n NO_WINDOW = 'no window',\n NO_APP_ID = 'no app id',\n NO_PROJECT_ID = 'no project id',\n NO_API_KEY = 'no api key',\n INVALID_CC_LOG = 'invalid cc log',\n FB_NOT_DEFAULT = 'FB not default',\n RC_NOT_OK = 'RC response not ok'\n}\n\nconst ERROR_DESCRIPTION_MAP: { readonly [key in ErrorCode]: string } = {\n [ErrorCode.TRACE_STARTED_BEFORE]: 'Trace {$traceName} was started before.',\n [ErrorCode.TRACE_STOPPED_BEFORE]: 'Trace {$traceName} is not running.',\n [ErrorCode.NO_WINDOW]: 'Window is not available.',\n [ErrorCode.NO_APP_ID]: 'App id is not available.',\n [ErrorCode.NO_PROJECT_ID]: 'Project id is not available.',\n [ErrorCode.NO_API_KEY]: 'Api key is not available.',\n [ErrorCode.INVALID_CC_LOG]: 'Attempted to queue invalid cc event',\n [ErrorCode.FB_NOT_DEFAULT]:\n 'Performance can only start when Firebase app instance is the default one.',\n [ErrorCode.RC_NOT_OK]: 'RC response is not ok'\n};\n\nexport const ERROR_FACTORY = new ErrorFactory(\n SERVICE,\n SERVICE_NAME,\n ERROR_DESCRIPTION_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 '@firebase/installations';\nimport { SettingsService } from './settings_service';\n\nlet iid: string | undefined;\nlet authToken: string | undefined;\n\nexport function getIidPromise(): Promise {\n const iidPromise = SettingsService.getInstance()\n .firebaseAppInstance.installations()\n .getId();\n\n iidPromise.then((iidVal: string) => {\n iid = iidVal;\n });\n return iidPromise;\n}\n\n// This method should be used after the iid is retrieved by getIidPromise method.\nexport function getIid(): string | undefined {\n return iid;\n}\n\nexport function getAuthTokenPromise(): Promise {\n const authTokenPromise = SettingsService.getInstance()\n .firebaseAppInstance.installations()\n .getToken();\n authTokenPromise.then((authTokenVal: string) => {\n authToken = authTokenVal;\n });\n return authTokenPromise;\n}\n\nexport function getAuthenticationToken(): string | undefined {\n return authToken;\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 { Api } from '../services/api_service';\n\n// The values and orders of the following enums should not be changed.\nconst enum ServiceWorkerStatus {\n UNKNOWN = 0,\n UNSUPPORTED = 1,\n CONTROLLED = 2,\n UNCONTROLLED = 3\n}\n\nexport enum VisibilityState {\n UNKNOWN = 0,\n VISIBLE = 1,\n HIDDEN = 2,\n PRERENDER = 3,\n UNLOADED = 4\n}\n\nconst enum EffectiveConnectionType {\n UNKNOWN = 0,\n CONNECTION_SLOW_2G = 1,\n CONNECTION_2G = 2,\n CONNECTION_3G = 3,\n CONNECTION_4G = 4\n}\n\nexport function getServiceWorkerStatus(): ServiceWorkerStatus {\n const navigator = Api.getInstance().navigator;\n if ('serviceWorker' in navigator) {\n if (navigator.serviceWorker.controller) {\n return ServiceWorkerStatus.CONTROLLED;\n } else {\n return ServiceWorkerStatus.UNCONTROLLED;\n }\n } else {\n return ServiceWorkerStatus.UNSUPPORTED;\n }\n}\n\nexport function getVisibilityState(): VisibilityState {\n const document = Api.getInstance().document;\n const visibilityState = document.visibilityState;\n switch (visibilityState) {\n case 'visible':\n return VisibilityState.VISIBLE;\n case 'hidden':\n return VisibilityState.HIDDEN;\n case 'prerender':\n return VisibilityState.PRERENDER;\n default:\n return VisibilityState.UNKNOWN;\n }\n}\n\nexport function getEffectiveConnectionType(): EffectiveConnectionType {\n const navigator = Api.getInstance().navigator;\n const navigatorConnection = (navigator as any).connection;\n const effectiveType =\n navigatorConnection && navigatorConnection.effectiveType;\n switch (effectiveType) {\n case 'slow-2g':\n return EffectiveConnectionType.CONNECTION_SLOW_2G;\n case '2g':\n return EffectiveConnectionType.CONNECTION_2G;\n case '3g':\n return EffectiveConnectionType.CONNECTION_3G;\n case '4g':\n return EffectiveConnectionType.CONNECTION_4G;\n default:\n return EffectiveConnectionType.UNKNOWN;\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 { Logger, LogLevel } from '@firebase/logger';\nimport { SERVICE_NAME } from '../constants';\n\nexport const consoleLogger = new Logger(SERVICE_NAME);\nconsoleLogger.logLevel = LogLevel.INFO;\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 { SettingsService } from './settings_service';\nimport {\n SDK_VERSION,\n CONFIG_LOCAL_STORAGE_KEY,\n CONFIG_EXPIRY_LOCAL_STORAGE_KEY\n} from '../constants';\nimport { Api } from './api_service';\nimport { getAuthTokenPromise } from './iid_service';\nimport { consoleLogger } from '../utils/console_logger';\nimport { ERROR_FACTORY, ErrorCode } from '../utils/errors';\n\nconst REMOTE_CONFIG_SDK_VERSION = '0.0.1';\n\ninterface SecondaryConfig {\n loggingEnabled?: boolean;\n logEndPointUrl?: string;\n logSource?: number;\n tracesSamplingRate?: number;\n networkRequestsSamplingRate?: number;\n}\n\n// These values will be used if the remote config object is successfully\n// retrieved, but the template does not have these fields.\nconst SECONDARY_CONFIGS: SecondaryConfig = {\n loggingEnabled: true\n};\n\ninterface RemoteConfigTemplate {\n fpr_enabled?: string;\n fpr_log_source?: string;\n fpr_log_endpoint_url?: string;\n fpr_vc_network_request_sampling_rate?: string;\n fpr_vc_trace_sampling_rate?: string;\n fpr_vc_session_sampling_rate?: string;\n}\n\ninterface RemoteConfigResponse {\n entries?: RemoteConfigTemplate;\n state?: string;\n}\n\nconst FIS_AUTH_PREFIX = 'FIREBASE_INSTALLATIONS_AUTH';\n\nexport function getConfig(iid: string): Promise {\n const config = getStoredConfig();\n if (config) {\n processConfig(config);\n return Promise.resolve();\n }\n\n return getRemoteConfig(iid)\n .then(config => processConfig(config))\n .then(\n config => storeConfig(config),\n /** Do nothing for error, use defaults set in settings service. */ () => {}\n );\n}\n\nfunction getStoredConfig(): RemoteConfigResponse | undefined {\n const localStorage = Api.getInstance().localStorage;\n const expiryString = localStorage.getItem(CONFIG_EXPIRY_LOCAL_STORAGE_KEY);\n if (!expiryString || !configValid(expiryString)) return;\n\n const configStringified = localStorage.getItem(CONFIG_LOCAL_STORAGE_KEY);\n if (!configStringified) return;\n try {\n const configResponse: RemoteConfigResponse = JSON.parse(configStringified);\n return configResponse;\n } catch {\n return;\n }\n}\n\nfunction storeConfig(config: RemoteConfigResponse | undefined): void {\n if (!config) return;\n const localStorage = Api.getInstance().localStorage;\n localStorage.setItem(CONFIG_LOCAL_STORAGE_KEY, JSON.stringify(config));\n localStorage.setItem(\n CONFIG_EXPIRY_LOCAL_STORAGE_KEY,\n String(\n Date.now() +\n SettingsService.getInstance().configTimeToLive * 60 * 60 * 1000\n )\n );\n}\n\nconst COULD_NOT_GET_CONFIG_MSG =\n 'Could not fetch config, will use default configs';\n\nfunction getRemoteConfig(\n iid: string\n): Promise {\n // Perf needs auth token only to retrieve remote config.\n return getAuthTokenPromise()\n .then(authToken => {\n const projectId = SettingsService.getInstance().getProjectId();\n const configEndPoint = `https://firebaseremoteconfig.googleapis.com/v1/projects/${projectId}/namespaces/fireperf:fetch?key=${SettingsService.getInstance().getApiKey()}`;\n const request = new Request(configEndPoint, {\n method: 'POST',\n headers: {\n Authorization: `${FIS_AUTH_PREFIX} ${authToken}`\n },\n body: JSON.stringify({\n app_instance_id: iid,\n app_instance_id_token: authToken,\n app_id: SettingsService.getInstance().getAppId(),\n app_version: SDK_VERSION,\n sdk_version: REMOTE_CONFIG_SDK_VERSION\n })\n });\n return fetch(request).then(response => {\n if (response.ok) {\n return response.json() as RemoteConfigResponse;\n }\n // In case response is not ok. This will be caught by catch.\n throw ERROR_FACTORY.create(ErrorCode.RC_NOT_OK);\n });\n })\n .catch(() => {\n consoleLogger.info(COULD_NOT_GET_CONFIG_MSG);\n return undefined;\n });\n}\n\n/**\n * Processes config coming either from calling RC or from local storage.\n * This method only runs if call is successful or config in storage\n * is valie.\n */\nfunction processConfig(\n config: RemoteConfigResponse | undefined\n): RemoteConfigResponse | undefined {\n if (!config) return config;\n const settingsServiceInstance = SettingsService.getInstance();\n const entries = config.entries || {};\n if (entries.fpr_enabled !== undefined) {\n // TODO: Change the assignment of loggingEnabled once the received type is known.\n settingsServiceInstance.loggingEnabled =\n String(entries.fpr_enabled) === 'true';\n } else if (SECONDARY_CONFIGS.loggingEnabled !== undefined) {\n // Config retrieved successfully, but there is no fpr_enabled in template.\n // Use secondary configs value.\n settingsServiceInstance.loggingEnabled = SECONDARY_CONFIGS.loggingEnabled;\n }\n if (entries.fpr_log_source) {\n settingsServiceInstance.logSource = Number(entries.fpr_log_source);\n } else if (SECONDARY_CONFIGS.logSource) {\n settingsServiceInstance.logSource = SECONDARY_CONFIGS.logSource;\n }\n if (entries.fpr_log_endpoint_url) {\n settingsServiceInstance.logEndPointUrl = entries.fpr_log_endpoint_url;\n } else if (SECONDARY_CONFIGS.logEndPointUrl) {\n settingsServiceInstance.logEndPointUrl = SECONDARY_CONFIGS.logEndPointUrl;\n }\n if (entries.fpr_vc_network_request_sampling_rate !== undefined) {\n settingsServiceInstance.networkRequestsSamplingRate = Number(\n entries.fpr_vc_network_request_sampling_rate\n );\n } else if (SECONDARY_CONFIGS.networkRequestsSamplingRate !== undefined) {\n settingsServiceInstance.networkRequestsSamplingRate =\n SECONDARY_CONFIGS.networkRequestsSamplingRate;\n }\n if (entries.fpr_vc_trace_sampling_rate !== undefined) {\n settingsServiceInstance.tracesSamplingRate = Number(\n entries.fpr_vc_trace_sampling_rate\n );\n } else if (SECONDARY_CONFIGS.tracesSamplingRate !== undefined) {\n settingsServiceInstance.tracesSamplingRate =\n SECONDARY_CONFIGS.tracesSamplingRate;\n }\n // Set the per session trace and network logging flags.\n settingsServiceInstance.logTraceAfterSampling = shouldLogAfterSampling(\n settingsServiceInstance.tracesSamplingRate\n );\n settingsServiceInstance.logNetworkAfterSampling = shouldLogAfterSampling(\n settingsServiceInstance.networkRequestsSamplingRate\n );\n return config;\n}\n\nfunction configValid(expiry: string): boolean {\n return Number(expiry) > Date.now();\n}\n\nfunction shouldLogAfterSampling(samplingRate: number): boolean {\n return Math.random() <= samplingRate;\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 { getIidPromise } from './iid_service';\nimport { getConfig } from './remote_config_service';\nimport { Api } from './api_service';\n\nconst enum InitializationStatus {\n notInitialized = 1,\n initializationPending,\n initialized\n}\n\nlet initializationStatus = InitializationStatus.notInitialized;\n\nlet initializationPromise: Promise | undefined;\n\nexport function getInitializationPromise(): Promise {\n initializationStatus = InitializationStatus.initializationPending;\n\n initializationPromise = initializationPromise || initializePerf();\n\n return initializationPromise;\n}\n\nexport function isPerfInitialized(): boolean {\n return initializationStatus === InitializationStatus.initialized;\n}\n\nfunction initializePerf(): Promise {\n return getDocumentReadyComplete()\n .then(() => getIidPromise())\n .then(iid => getConfig(iid))\n .then(\n () => changeInitializationStatus(),\n () => changeInitializationStatus()\n );\n}\n\n/**\n * Returns a promise which resolves whenever the document readystate is complete or\n * immediately if it is called after page load complete.\n */\nfunction getDocumentReadyComplete(): Promise {\n const document = Api.getInstance().document;\n return new Promise(resolve => {\n if (document && document.readyState !== 'complete') {\n const handler = () => {\n if (document.readyState === 'complete') {\n document.removeEventListener('readystatechange', handler);\n resolve();\n }\n };\n document.addEventListener('readystatechange', handler);\n } else {\n resolve();\n }\n });\n}\n\nfunction changeInitializationStatus(): void {\n initializationStatus = InitializationStatus.initialized;\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 { LogHandler, Logger, LogLevel } from '@firebase/logger';\nimport { SettingsService } from './settings_service';\nimport { ERROR_FACTORY, ErrorCode } from '../utils/errors';\nimport { consoleLogger } from '../utils/console_logger';\n\nconst DEFAULT_SEND_INTERVAL_MS = 10 * 1000;\nconst INITIAL_SEND_TIME_DELAY_MS = 5.5 * 1000;\n// If end point does not work, the call will be tried for these many times.\nconst DEFAULT_REMAINING_TRIES = 3;\nlet remainingTries = DEFAULT_REMAINING_TRIES;\n\ninterface BatchEvent {\n message: string;\n eventTime: number;\n}\n\n// CC accepted log format.\ninterface CcBatchLogFormat {\n request_time_ms: string;\n client_info: ClientInfo;\n log_source: number;\n log_event: Log[];\n}\n\ninterface ClientInfo {\n client_type: number;\n js_client_info: {};\n}\n\ninterface Log {\n source_extension_json: string;\n event_time_ms: string;\n}\n\nlet queue: BatchEvent[] = [];\n\nfunction processQueue(timeOffset: number): void {\n setTimeout(() => {\n // If there is no remainingTries left, stop retrying.\n if (remainingTries === 0) {\n return;\n }\n\n // If there are no events to process, wait for DEFAULT_SEND_INTERVAL_MS and try again.\n if (!queue.length) {\n return processQueue(DEFAULT_SEND_INTERVAL_MS);\n }\n\n // Capture a snapshot of the queue and empty the \"official queue\".\n const staged = [...queue];\n queue = [];\n\n // We will pass the JSON serialized event to the backend.\n const log_event = staged.map(evt => ({\n source_extension_json: evt.message,\n event_time_ms: String(evt.eventTime)\n }));\n\n const data: CcBatchLogFormat = {\n request_time_ms: String(Date.now()),\n client_info: {\n client_type: 1, // 1 is JS\n js_client_info: {}\n },\n log_source: SettingsService.getInstance().logSource,\n log_event\n };\n\n fetch(SettingsService.getInstance().logEndPointUrl, {\n method: 'POST',\n body: JSON.stringify(data)\n })\n .then(res => {\n if (!res.ok) {\n consoleLogger.info('Call to Firebase backend failed.');\n }\n return res.json();\n })\n .then(res => {\n // Find the next call wait time from the response.\n const requestOffset = Math.max(\n DEFAULT_SEND_INTERVAL_MS,\n parseInt(res.next_request_wait_millis, 10)\n );\n remainingTries = DEFAULT_REMAINING_TRIES;\n // Schedule the next process.\n processQueue(requestOffset);\n })\n .catch(() => {\n /**\n * If the request fails for some reason, add the events that were attempted\n * back to the primary queue to retry later.\n */\n queue = [...staged, ...queue];\n remainingTries--;\n consoleLogger.info(`Tries left: ${remainingTries}.`);\n processQueue(DEFAULT_SEND_INTERVAL_MS);\n });\n }, timeOffset);\n}\n\nprocessQueue(INITIAL_SEND_TIME_DELAY_MS);\n\nfunction addToQueue(evt: BatchEvent): void {\n if (!evt.eventTime || !evt.message) {\n throw ERROR_FACTORY.create(ErrorCode.INVALID_CC_LOG);\n }\n // Add the new event to the queue.\n queue = [...queue, evt];\n}\n\n/** Log handler for cc service to send the performance logs to the server. */\nexport function ccHandler(serializer: (...args: any[]) => string): LogHandler {\n // The underscores for loggerInstance and level parameters are added to avoid the\n // noUnusedParameters related error.\n return (_loggerInstance: Logger, _level: LogLevel, ...args) => {\n const message = serializer(...args);\n addToQueue({\n message,\n eventTime: Date.now()\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\nimport { getIid } from './iid_service';\nimport { NetworkRequest } from '../resources/network_request';\nimport { Trace } from '../resources/trace';\nimport { Api } from './api_service';\nimport { SettingsService } from './settings_service';\nimport {\n getServiceWorkerStatus,\n getVisibilityState,\n VisibilityState,\n getEffectiveConnectionType\n} from '../utils/attributes_utils';\nimport {\n isPerfInitialized,\n getInitializationPromise\n} from './initialization_service';\nimport { Logger } from '@firebase/logger';\nimport { ccHandler } from './cc_service';\nimport { SDK_VERSION } from '../constants';\n\nconst enum ResourceType {\n NetworkRequest,\n Trace\n}\n\ninterface ApplicationInfo {\n google_app_id: string;\n app_instance_id?: string;\n web_app_info: WebAppInfo;\n application_process_state: number;\n}\n\ninterface WebAppInfo {\n sdk_version: string;\n page_url: string;\n service_worker_status: number;\n visibility_state: number;\n effective_connection_type: number;\n}\n\ninterface PerfNetworkLog {\n application_info: ApplicationInfo;\n network_request_metric: NetworkRequestMetric;\n}\n\ninterface PerfTraceLog {\n application_info: ApplicationInfo;\n trace_metric: TraceMetric;\n}\n\ninterface NetworkRequestMetric {\n url: string;\n http_method: number;\n http_response_code: number;\n response_payload_bytes?: number;\n client_start_time_us?: number;\n time_to_response_initiated_us?: number;\n time_to_response_completed_us?: number;\n}\n\ninterface TraceMetric {\n name: string;\n is_auto: boolean;\n client_start_time_us: number;\n duration_us: number;\n counters?: Array<{ key: string; value: number }>;\n custom_attributes?: Array<{ key: string; value: string }>;\n}\n\nlet logger: Logger | undefined;\n// This method is not called before initialization.\nfunction getLogger(): Logger {\n if (logger) return logger;\n const ccLogger = ccHandler(serializer);\n logger = new Logger('@firebase/performance/cc');\n logger.logHandler = ccLogger;\n return logger;\n}\n\nexport function logTrace(trace: Trace): void {\n const settingsService = SettingsService.getInstance();\n // Do not log if trace is auto generated and instrumentation is disabled.\n if (!settingsService.instrumentationEnabled && trace.isAuto) return;\n // Do not log if trace is custom and data collection is disabled.\n if (!settingsService.dataCollectionEnabled && !trace.isAuto) return;\n // Only log the page load auto traces if page is visible.\n if (trace.isAuto && getVisibilityState() !== VisibilityState.VISIBLE) return;\n\n if (!settingsService.loggingEnabled || !settingsService.logTraceAfterSampling)\n return;\n\n if (isPerfInitialized()) {\n sendTraceLog(trace);\n } else {\n // Custom traces can be used before the initialization but logging\n // should wait until after.\n getInitializationPromise().then(\n () => sendTraceLog(trace),\n () => sendTraceLog(trace)\n );\n }\n}\n\nfunction sendTraceLog(trace: Trace): void {\n if (getIid()) {\n setTimeout(() => getLogger().log(trace, ResourceType.Trace), 0);\n }\n}\n\nexport function logNetworkRequest(networkRequest: NetworkRequest): void {\n const settingsService = SettingsService.getInstance();\n // Do not log network requests if instrumentation is disabled.\n if (!settingsService.instrumentationEnabled) return;\n // Do not log the js sdk's call to cc service to avoid unnecessary cycle.\n if (networkRequest.url === settingsService.logEndPointUrl.split('?')[0])\n return;\n\n if (\n !settingsService.loggingEnabled ||\n !settingsService.logNetworkAfterSampling\n )\n return;\n\n setTimeout(\n () => getLogger().log(networkRequest, ResourceType.NetworkRequest),\n 0\n );\n}\n\nfunction serializer(resource: {}, resourceType: ResourceType): string {\n if (resourceType === ResourceType.NetworkRequest) {\n return serializeNetworkRequest(resource as NetworkRequest);\n }\n return serializeTrace(resource as Trace);\n}\n\nfunction serializeNetworkRequest(networkRequest: NetworkRequest): string {\n const networkRequestMetric: NetworkRequestMetric = {\n url: networkRequest.url,\n http_method: 1,\n http_response_code: 200,\n response_payload_bytes: networkRequest.responsePayloadBytes,\n client_start_time_us: networkRequest.startTimeUs,\n time_to_response_initiated_us: networkRequest.timeToResponseInitiatedUs,\n time_to_response_completed_us: networkRequest.timeToResponseCompletedUs\n };\n const perfMetric: PerfNetworkLog = {\n application_info: getApplicationInfo(),\n network_request_metric: networkRequestMetric\n };\n return JSON.stringify(perfMetric);\n}\n\nfunction serializeTrace(trace: Trace): string {\n const traceMetric: TraceMetric = {\n name: trace.name,\n is_auto: trace.isAuto,\n client_start_time_us: trace.startTimeUs,\n duration_us: trace.durationUs\n };\n\n if (Object.keys(trace.counters).length !== 0) {\n traceMetric.counters = convertToKeyValueArray(trace.counters);\n }\n const customAttributes = trace.getAttributes();\n if (Object.keys(customAttributes).length !== 0) {\n traceMetric.custom_attributes = convertToKeyValueArray(customAttributes);\n }\n\n const perfMetric: PerfTraceLog = {\n application_info: getApplicationInfo(),\n trace_metric: traceMetric\n };\n return JSON.stringify(perfMetric);\n}\n\nfunction getApplicationInfo(): ApplicationInfo {\n return {\n google_app_id: SettingsService.getInstance().getAppId(),\n app_instance_id: getIid(),\n web_app_info: {\n sdk_version: SDK_VERSION,\n page_url: Api.getInstance().getUrl(),\n service_worker_status: getServiceWorkerStatus(),\n visibility_state: getVisibilityState(),\n effective_connection_type: getEffectiveConnectionType()\n },\n application_process_state: 0\n };\n}\n\nfunction convertToKeyValueArray(obj: {\n [key: string]: T;\n}): Array<{\n key: string;\n value: T;\n}> {\n const keys = Object.keys(obj);\n return keys.map(key => ({ key, value: obj[key] }));\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 TRACE_START_MARK_PREFIX,\n TRACE_STOP_MARK_PREFIX,\n TRACE_MEASURE_PREFIX,\n OOB_TRACE_PAGE_LOAD_PREFIX,\n FIRST_PAINT_COUNTER_NAME,\n FIRST_CONTENTFUL_PAINT_COUNTER_NAME,\n FIRST_INPUT_DELAY_COUNTER_NAME\n} from '../constants';\nimport { Api } from '../services/api_service';\nimport { logTrace } from '../services/perf_logger';\nimport { ERROR_FACTORY, ErrorCode } from '../utils/errors';\nimport { PerformanceTrace } from '@firebase/performance-types';\n\nconst enum TraceState {\n UNINITIALIZED = 1,\n RUNNING,\n TERMINATED\n}\n\nexport class Trace implements PerformanceTrace {\n private state: TraceState = TraceState.UNINITIALIZED;\n startTimeUs!: number;\n durationUs!: number;\n private customAttributes: { [key: string]: string } = {};\n counters: { [counterName: string]: number } = {};\n private api = Api.getInstance();\n private randomId = Math.floor(Math.random() * 1000000);\n private traceStartMark!: string;\n private traceStopMark!: string;\n private traceMeasure!: string;\n\n /**\n * @param name The name of the trace.\n * @param isAuto If the trace is auto-instrumented.\n * @param traceMeasureName The name of the measure marker in user timing specification. This field\n * is only set when the trace is built for logging when the user directly uses the user timing\n * api (performance.mark and performance.measure).\n */\n constructor(\n readonly name: string,\n readonly isAuto = false,\n traceMeasureName?: string\n ) {\n if (!this.isAuto) {\n this.traceStartMark = `${TRACE_START_MARK_PREFIX}-${this.randomId}-${\n this.name\n }`;\n this.traceStopMark = `${TRACE_STOP_MARK_PREFIX}-${this.randomId}-${\n this.name\n }`;\n this.traceMeasure =\n traceMeasureName ||\n `${TRACE_MEASURE_PREFIX}-${this.randomId}-${this.name}`;\n\n if (traceMeasureName) {\n // For the case of direct user timing traces, no start stop will happen. The measure object\n // is already available.\n this.calculateTraceMetrics();\n }\n }\n }\n\n /**\n * Starts a trace. The measurement of the duration starts at this point.\n */\n start(): void {\n if (this.state !== TraceState.UNINITIALIZED) {\n throw ERROR_FACTORY.create(ErrorCode.TRACE_STARTED_BEFORE, {\n traceName: this.name\n });\n }\n this.api.mark(this.traceStartMark);\n this.state = TraceState.RUNNING;\n }\n\n /**\n * Stops the trace. The measurement of the duration of the trace stops at this point and trace\n * is logged.\n */\n stop(): void {\n if (this.state !== TraceState.RUNNING) {\n throw ERROR_FACTORY.create(ErrorCode.TRACE_STOPPED_BEFORE, {\n traceName: this.name\n });\n }\n this.state = TraceState.TERMINATED;\n this.api.mark(this.traceStopMark);\n this.api.measure(\n this.traceMeasure,\n this.traceStartMark,\n this.traceStopMark\n );\n this.calculateTraceMetrics();\n logTrace(this);\n }\n\n /**\n * Records a trace with predetermined values. If this method is used a trace is created and logged\n * directly. No need to use start and stop methods.\n * @param startTime Trace start time since epoch in millisec\n * @param duration The duraction of the trace in millisec\n * @param options An object which can optionally hold maps of custom metrics and custom attributes\n */\n record(\n startTime: number,\n duration: number,\n options?: {\n metrics?: { [key: string]: number };\n attributes?: { [key: string]: string };\n }\n ): void {\n this.durationUs = Math.floor(duration * 1000);\n this.startTimeUs = Math.floor(startTime * 1000);\n if (options && options.attributes) {\n this.customAttributes = { ...options.attributes };\n }\n if (options && options.metrics) {\n for (const metric of Object.keys(options.metrics)) {\n if (!isNaN(Number(options.metrics[metric]))) {\n this.counters[metric] = Number(Math.floor(options.metrics[metric]));\n }\n }\n }\n logTrace(this);\n }\n\n /**\n * Increments a custom metric by a certain number or 1 if number not specified. Will create a new\n * custom metric if one with the given name does not exist.\n * @param counter Name of the custom metric\n * @param num Increment by value\n */\n incrementMetric(counter: string, num = 1): void {\n if (this.counters[counter] === undefined) {\n this.counters[counter] = 0;\n }\n this.counters[counter] += num;\n }\n\n /**\n * Sets a custom metric to a specified value. Will create a new custom metric if one with the\n * given name does not exist.\n * @param counter Name of the custom metric\n * @param num Set custom metric to this value\n */\n putMetric(counter: string, num: number): void {\n this.counters[counter] = num;\n }\n\n /**\n * Returns the value of the custom metric by that name. If a custom metric with that name does\n * not exist will return zero.\n * @param counter\n */\n getMetric(counter: string): number {\n return this.counters[counter] || 0;\n }\n\n /**\n * Sets a custom attribute of a trace to a certain value.\n * @param attr\n * @param value\n */\n putAttribute(attr: string, value: string): void {\n this.customAttributes[attr] = value;\n }\n\n /**\n * Retrieves the value a custom attribute of a trace is set to.\n * @param attr\n */\n getAttribute(attr: string): string | undefined {\n return this.customAttributes[attr];\n }\n\n removeAttribute(attr: string): void {\n if (this.customAttributes[attr] === undefined) return;\n delete this.customAttributes[attr];\n }\n\n getAttributes(): { [key: string]: string } {\n return { ...this.customAttributes };\n }\n\n private setStartTime(startTime: number): void {\n this.startTimeUs = startTime;\n }\n\n private setDuration(duration: number): void {\n this.durationUs = duration;\n }\n\n /**\n * Calculates and assigns the duration and start time of the trace using the measure performance\n * entry.\n */\n private calculateTraceMetrics(): void {\n const perfMeasureEntries = this.api.getEntriesByName(this.traceMeasure);\n const perfMeasureEntry = perfMeasureEntries && perfMeasureEntries[0];\n if (perfMeasureEntry) {\n this.durationUs = Math.floor(perfMeasureEntry.duration * 1000);\n this.startTimeUs = Math.floor(\n (perfMeasureEntry.startTime + this.api.getTimeOrigin()) * 1000\n );\n }\n }\n\n /**\n * @param navigationTimings A single element array which contains the navigationTIming object of\n * the page load\n * @param paintTimings A array which contains paintTiming object of the page load\n * @param firstInputDelay First input delay in millisec\n */\n static createOobTrace(\n navigationTimings: PerformanceNavigationTiming[],\n paintTimings: PerformanceEntry[],\n firstInputDelay?: number\n ): void {\n const route = Api.getInstance().getUrl();\n if (!route) return;\n const trace = new Trace(OOB_TRACE_PAGE_LOAD_PREFIX + route, true);\n const timeOriginUs = Math.floor(Api.getInstance().getTimeOrigin() * 1000);\n trace.setStartTime(timeOriginUs);\n\n // navigationTimings includes only one element.\n if (navigationTimings && navigationTimings[0]) {\n trace.setDuration(Math.floor(navigationTimings[0].duration * 1000));\n trace.incrementMetric(\n 'domInteractive',\n Math.floor(navigationTimings[0].domInteractive * 1000)\n );\n trace.incrementMetric(\n 'domContentLoadedEventEnd',\n Math.floor(navigationTimings[0].domContentLoadedEventEnd * 1000)\n );\n trace.incrementMetric(\n 'loadEventEnd',\n Math.floor(navigationTimings[0].loadEventEnd * 1000)\n );\n }\n\n const FIRST_PAINT = 'first-paint';\n const FIRST_CONTENTFUL_PAINT = 'first-contentful-paint';\n if (paintTimings) {\n const firstPaint = paintTimings.find(\n paintObject => paintObject.name === FIRST_PAINT\n );\n if (firstPaint && firstPaint.startTime) {\n trace.incrementMetric(\n FIRST_PAINT_COUNTER_NAME,\n Math.floor(firstPaint.startTime * 1000)\n );\n }\n const firstContentfulPaint = paintTimings.find(\n paintObject => paintObject.name === FIRST_CONTENTFUL_PAINT\n );\n if (firstContentfulPaint && firstContentfulPaint.startTime) {\n trace.incrementMetric(\n FIRST_CONTENTFUL_PAINT_COUNTER_NAME,\n Math.floor(firstContentfulPaint.startTime * 1000)\n );\n }\n\n if (firstInputDelay) {\n trace.incrementMetric(\n FIRST_INPUT_DELAY_COUNTER_NAME,\n Math.floor(firstInputDelay * 1000)\n );\n }\n }\n\n logTrace(trace);\n }\n\n static createUserTimingTrace(measureName: string): void {\n const trace = new Trace(measureName, false, measureName);\n logTrace(trace);\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 { Api } from '../services/api_service';\nimport { logNetworkRequest } from '../services/perf_logger';\n\n// The order of values of this enum should not be changed.\nexport const enum HttpMethod {\n HTTP_METHOD_UNKNOWN = 0,\n GET = 1,\n PUT = 2,\n POST = 3,\n DELETE = 4,\n HEAD = 5,\n PATCH = 6,\n OPTIONS = 7,\n TRACE = 8,\n CONNECT = 9\n}\n\n// Durations are in microseconds.\nexport interface NetworkRequest {\n url: string;\n httpMethod?: HttpMethod;\n requestPayloadBytes?: number;\n responsePayloadBytes?: number;\n httpResponseCode?: number;\n responseContentType?: string;\n startTimeUs?: number;\n timeToRequestCompletedUs?: number;\n timeToResponseInitiatedUs?: number;\n timeToResponseCompletedUs?: number;\n}\n\nexport function createNetworkRequestEntry(entry: PerformanceEntry): void {\n const performanceEntry = entry as PerformanceResourceTiming;\n if (!performanceEntry || performanceEntry.responseStart === undefined) return;\n const timeOrigin = Api.getInstance().getTimeOrigin();\n const startTimeUs = Math.floor(\n (performanceEntry.startTime + timeOrigin) * 1000\n );\n const timeToResponseInitiatedUs = performanceEntry.responseStart\n ? Math.floor(\n (performanceEntry.responseStart - performanceEntry.startTime) * 1000\n )\n : undefined;\n const timeToResponseCompletedUs = Math.floor(\n (performanceEntry.responseEnd - performanceEntry.startTime) * 1000\n );\n // Remove the query params from logged network request url.\n const url = performanceEntry.name && performanceEntry.name.split('?')[0];\n const networkRequest: NetworkRequest = {\n url,\n responsePayloadBytes: performanceEntry.transferSize,\n startTimeUs,\n timeToResponseInitiatedUs,\n timeToResponseCompletedUs\n };\n\n logNetworkRequest(networkRequest);\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 */\nimport { Api } from './api_service';\nimport { Trace } from '../resources/trace';\nimport { createNetworkRequestEntry } from '../resources/network_request';\nimport { TRACE_MEASURE_PREFIX } from '../constants';\nimport { getIid } from './iid_service';\n\nconst FID_WAIT_TIME_MS = 5000;\n\nexport function setupOobResources(): void {\n // Do not initialize unless iid is available.\n if (!getIid()) return;\n // The load event might not have fired yet, and that means performance navigation timing\n // object has a duration of 0. The setup should run after all current tasks in js queue.\n setTimeout(() => setupOobTraces(), 0);\n setTimeout(() => setupNetworkRequests(), 0);\n setTimeout(() => setupUserTimingTraces(), 0);\n}\n\nfunction setupNetworkRequests(): void {\n const api = Api.getInstance();\n const resources = api.getEntriesByType('resource');\n for (const resource of resources) {\n createNetworkRequestEntry(resource);\n }\n api.setupObserver('resource', createNetworkRequestEntry);\n}\n\nfunction setupOobTraces(): void {\n const api = Api.getInstance();\n const navigationTimings = api.getEntriesByType(\n 'navigation'\n ) as PerformanceNavigationTiming[];\n const paintTimings = api.getEntriesByType('paint');\n // If First Input Desly polyfill is added to the page, report the fid value.\n // https://github.com/GoogleChromeLabs/first-input-delay\n if (api.onFirstInputDelay) {\n // If the fid call back is not called for certain time, continue without it.\n let timeoutId: any = setTimeout(() => {\n Trace.createOobTrace(navigationTimings, paintTimings);\n timeoutId = undefined;\n }, FID_WAIT_TIME_MS);\n api.onFirstInputDelay((fid: number) => {\n if (timeoutId) {\n clearTimeout(timeoutId);\n Trace.createOobTrace(navigationTimings, paintTimings, fid);\n }\n });\n } else {\n Trace.createOobTrace(navigationTimings, paintTimings);\n }\n}\n\nfunction setupUserTimingTraces(): void {\n const api = Api.getInstance();\n // Run through the measure performance entries collected up to this point.\n const measures = api.getEntriesByType('measure');\n for (const measure of measures) {\n createUserTimingTrace(measure);\n }\n // Setup an observer to capture the measures from this point on.\n api.setupObserver('measure', createUserTimingTrace);\n}\n\nfunction createUserTimingTrace(measure: PerformanceEntry): void {\n const measureName = measure.name;\n // Do not create a trace, if the user timing marks and measures are created by the sdk itself.\n if (\n measureName.substring(0, TRACE_MEASURE_PREFIX.length) ===\n TRACE_MEASURE_PREFIX\n )\n return;\n Trace.createUserTimingTrace(measureName);\n}\n","/**\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 { Trace } from '../resources/trace';\nimport { setupOobResources } from '../services/oob_resources_service';\nimport { SettingsService } from '../services/settings_service';\nimport { getInitializationPromise } from '../services/initialization_service';\nimport { FirebaseApp } from '@firebase/app-types';\nimport { FirebasePerformance } from '@firebase/performance-types';\n\nexport class PerformanceController implements FirebasePerformance {\n constructor(readonly app: FirebaseApp) {\n getInitializationPromise().then(setupOobResources, setupOobResources);\n }\n\n trace(name: string): Trace {\n return new Trace(name);\n }\n\n set instrumentationEnabled(val: boolean) {\n SettingsService.getInstance().instrumentationEnabled = val;\n }\n get instrumentationEnabled() {\n return SettingsService.getInstance().instrumentationEnabled;\n }\n\n set dataCollectionEnabled(val: boolean) {\n SettingsService.getInstance().dataCollectionEnabled = val;\n }\n get dataCollectionEnabled() {\n return SettingsService.getInstance().dataCollectionEnabled;\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 firebase from '@firebase/app';\nimport { FirebaseApp, FirebaseNamespace } from '@firebase/app-types';\nimport {\n _FirebaseNamespace,\n FirebaseServiceFactory\n} from '@firebase/app-types/private';\nimport { PerformanceController } from './src/controllers/perf';\nimport { setupApi } from './src/services/api_service';\nimport { SettingsService } from './src/services/settings_service';\nimport { consoleLogger } from './src/utils/console_logger';\nimport { ERROR_FACTORY, ErrorCode } from './src/utils/errors';\nimport { FirebasePerformance } from '@firebase/performance-types';\n\nconst DEFAULT_ENTRY_NAME = '[DEFAULT]';\n\nexport function registerPerformance(instance: FirebaseNamespace): void {\n const factoryMethod: FirebaseServiceFactory = (app: FirebaseApp) => {\n if (app.name !== DEFAULT_ENTRY_NAME) {\n throw ERROR_FACTORY.create(ErrorCode.FB_NOT_DEFAULT);\n }\n SettingsService.getInstance().firebaseAppInstance = app;\n return new PerformanceController(app);\n };\n\n // Register performance with firebase-app.\n const namespaceExports = {};\n (instance as _FirebaseNamespace).INTERNAL.registerService(\n 'performance',\n factoryMethod,\n namespaceExports\n );\n}\n\nif (window && fetch && Promise) {\n setupApi(window);\n registerPerformance(firebase);\n} else {\n consoleLogger.info(\n 'Firebase Performance cannot start if browser does not support fetch and Promise.'\n );\n}\n\ndeclare module '@firebase/app-types' {\n interface FirebaseNamespace {\n performance?: {\n (app?: FirebaseApp): FirebasePerformance;\n };\n }\n interface 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