{"version":3,"file":"firebase-analytics.js","sources":["../logger/src/logger.ts","../../node_modules/safevalues/dist/mjs/internals/secrets.js","../../node_modules/safevalues/dist/mjs/internals/string_literal.js","../../node_modules/safevalues/dist/mjs/internals/trusted_types.js","../../node_modules/safevalues/dist/mjs/internals/resource_url_impl.js","../../node_modules/safevalues/dist/mjs/builders/resource_url_builders.js","../../node_modules/safevalues/dist/mjs/dom/elements/script.js","../../node_modules/safevalues/dist/mjs/dom/globals/window.js","../util/src/environment.ts","../util/src/errors.ts","../util/src/obj.ts","../util/src/exponential_backoff.ts","../util/src/compat.ts","../component/src/component.ts","../../node_modules/idb/build/wrap-idb-value.js","../../node_modules/idb/build/index.js","../installations/src/util/errors.ts","../installations/src/util/constants.ts","../installations/src/functions/common.ts","../installations/src/util/sleep.ts","../installations/src/helpers/generate-fid.ts","../installations/src/helpers/buffer-to-base64-url-safe.ts","../installations/src/util/get-key.ts","../installations/src/helpers/fid-changed.ts","../installations/src/helpers/idb-manager.ts","../installations/src/helpers/get-installation-entry.ts","../installations/src/functions/create-installation-request.ts","../installations/src/functions/generate-auth-token-request.ts","../installations/src/helpers/refresh-auth-token.ts","../installations/src/api/get-token.ts","../installations/src/helpers/extract-app-config.ts","../installations/src/functions/config.ts","../installations/src/api/get-id.ts","../installations/src/index.ts","../analytics/src/constants.ts","../analytics/src/logger.ts","../analytics/src/helpers.ts","../analytics/src/errors.ts","../analytics/src/get-config.ts","../analytics/src/functions.ts","../analytics/src/initialize-analytics.ts","../analytics/src/factory.ts","../analytics/src/api.ts","../analytics/src/index.ts"],"sourcesContent":["/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nexport type LogLevelString =\n | 'debug'\n | 'verbose'\n | 'info'\n | 'warn'\n | 'error'\n | 'silent';\n\nexport interface LogOptions {\n level: LogLevelString;\n}\n\nexport type LogCallback = (callbackParams: LogCallbackParams) => void;\n\nexport interface LogCallbackParams {\n level: LogLevelString;\n message: string;\n args: unknown[];\n type: string;\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\nconst levelStringToEnum: { [key in LogLevelString]: LogLevel } = {\n 'debug': LogLevel.DEBUG,\n 'verbose': LogLevel.VERBOSE,\n 'info': LogLevel.INFO,\n 'warn': LogLevel.WARN,\n 'error': LogLevel.ERROR,\n 'silent': LogLevel.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: unknown[]\n) => void;\n\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 */\nconst ConsoleMethod = {\n [LogLevel.DEBUG]: 'log',\n [LogLevel.VERBOSE]: 'log',\n [LogLevel.INFO]: 'info',\n [LogLevel.WARN]: 'warn',\n [LogLevel.ERROR]: 'error'\n};\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): void => {\n if (logType < instance.logLevel) {\n return;\n }\n const now = new Date().toISOString();\n const method = ConsoleMethod[logType as keyof typeof ConsoleMethod];\n if (method) {\n console[method as 'log' | 'info' | 'warn' | 'error'](\n `[${now}] ${instance.name}:`,\n ...args\n );\n } else {\n throw new Error(\n `Attempted to log a message with an invalid logType (value: ${logType})`\n );\n }\n};\n\nexport class Logger {\n /**\n * Gives you an instance of a Logger to capture messages according to\n * Firebase's logging scheme.\n *\n * @param name The name that the logs will be associated with\n */\n constructor(public name: string) {\n /**\n * Capture the current instance for later use\n */\n instances.push(this);\n }\n\n /**\n * The log level of the given Logger instance.\n */\n private _logLevel = defaultLogLevel;\n\n get logLevel(): LogLevel {\n return this._logLevel;\n }\n\n set logLevel(val: LogLevel) {\n if (!(val in LogLevel)) {\n throw new TypeError(`Invalid value \"${val}\" assigned to \\`logLevel\\``);\n }\n this._logLevel = val;\n }\n\n // Workaround for setter/getter having to be the same type.\n setLogLevel(val: LogLevel | LogLevelString): void {\n this._logLevel = typeof val === 'string' ? levelStringToEnum[val] : val;\n }\n\n /**\n * The main (internal) log handler for the Logger instance.\n * Can be set to a new function in internal package code but not by user.\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 optional, additional, user-defined log handler for the Logger instance.\n */\n private _userLogHandler: LogHandler | null = null;\n get userLogHandler(): LogHandler | null {\n return this._userLogHandler;\n }\n set userLogHandler(val: LogHandler | null) {\n this._userLogHandler = val;\n }\n\n /**\n * The functions below are all based on the `console` interface\n */\n\n debug(...args: unknown[]): void {\n this._userLogHandler && this._userLogHandler(this, LogLevel.DEBUG, ...args);\n this._logHandler(this, LogLevel.DEBUG, ...args);\n }\n log(...args: unknown[]): void {\n this._userLogHandler &&\n this._userLogHandler(this, LogLevel.VERBOSE, ...args);\n this._logHandler(this, LogLevel.VERBOSE, ...args);\n }\n info(...args: unknown[]): void {\n this._userLogHandler && this._userLogHandler(this, LogLevel.INFO, ...args);\n this._logHandler(this, LogLevel.INFO, ...args);\n }\n warn(...args: unknown[]): void {\n this._userLogHandler && this._userLogHandler(this, LogLevel.WARN, ...args);\n this._logHandler(this, LogLevel.WARN, ...args);\n }\n error(...args: unknown[]): void {\n this._userLogHandler && this._userLogHandler(this, LogLevel.ERROR, ...args);\n this._logHandler(this, LogLevel.ERROR, ...args);\n }\n}\n\nexport function setLogLevel(level: LogLevelString | LogLevel): void {\n instances.forEach(inst => {\n inst.setLogLevel(level);\n });\n}\n\nexport function setUserLogHandler(\n logCallback: LogCallback | null,\n options?: LogOptions\n): void {\n for (const instance of instances) {\n let customLogLevel: LogLevel | null = null;\n if (options && options.level) {\n customLogLevel = levelStringToEnum[options.level];\n }\n if (logCallback === null) {\n instance.userLogHandler = null;\n } else {\n instance.userLogHandler = (\n instance: Logger,\n level: LogLevel,\n ...args: unknown[]\n ) => {\n const message = args\n .map(arg => {\n if (arg == null) {\n return null;\n } else if (typeof arg === 'string') {\n return arg;\n } else if (typeof arg === 'number' || typeof arg === 'boolean') {\n return arg.toString();\n } else if (arg instanceof Error) {\n return arg.message;\n } else {\n try {\n return JSON.stringify(arg);\n } catch (ignored) {\n return null;\n }\n }\n })\n .filter(arg => arg)\n .join(' ');\n if (level >= (customLogLevel ?? instance.logLevel)) {\n logCallback({\n level: LogLevel[level].toLowerCase() as LogLevelString,\n message,\n args,\n type: instance.name\n });\n }\n };\n }\n }\n}\n","/**\n * @license\n * SPDX-License-Identifier: Apache-2.0\n */\nimport '../environment/dev.js';\n/**\n * A secret token that must be passed to safe type constructors. It is only\n * accessible from within safevalues, ensuring that unrestricted safe type\n * creation is only possible within safevalues. In particular, this prevents\n * forgery such as `safeHtmlValue.constructor('javascript:evil')`.\n */\nexport const secretToken = {};\n/**\n * Asserts that the given token matches the secret safevalues token. An\n * exception is thrown if that is not the case.\n */\nexport function ensureTokenIsValid(token) {\n if (process.env.NODE_ENV !== 'production') {\n if (token !== secretToken) {\n throw new Error('Bad secret');\n }\n }\n}\n","/**\n * @license\n * SPDX-License-Identifier: Apache-2.0\n */\n/**\n * An object of type TemplateStringsArray represents the literal part(s) of a\n * template literal. This function checks if a TemplateStringsArray object is\n * actually from a template literal.\n *\n * @param templateObj This contains the literal part of the template literal.\n * @param numExprs The number of embedded expressions\n */\nexport function assertIsTemplateObject(templateObj, numExprs) {\n if (!isTemplateObject(templateObj) || numExprs + 1 !== templateObj.length) {\n throw new TypeError(`\n ############################## ERROR ##############################\n\n It looks like you are trying to call a template tag function (fn\\`...\\`)\n using the normal function syntax (fn(...)), which is not supported.\n\n The functions in the safevalues library are not designed to be called\n like normal functions, and doing so invalidates the security guarantees\n that safevalues provides.\n\n If you are stuck and not sure how to proceed, please reach out to us\n instead through:\n - https://github.com/google/safevalues/issues\n\n ############################## ERROR ##############################`);\n }\n}\n/** Checks if `templateObj` and its raw property are frozen. */\nfunction checkFrozen(templateObj) {\n return Object.isFrozen(templateObj) && Object.isFrozen(templateObj.raw);\n}\n/**\n * Checks if a function containing a tagged template expression is transpiled.\n */\nfunction checkTranspiled(fn) {\n return fn.toString().indexOf('`') === -1;\n}\n/**\n * This value tells us if the code is transpiled, in which case we don't\n * check certain things that transpilers typically don't support. The\n * transpilation turns it into a function call that takes an array.\n */\nconst isTranspiled = checkTranspiled((tag) => tag ``) ||\n checkTranspiled((tag) => tag `\\0`) ||\n checkTranspiled((tag) => tag `\\n`) ||\n checkTranspiled((tag) => tag `\\u0000`);\n/**\n * This value tells us if `TemplateStringsArray` are typically frozen in the\n * current environment.\n */\nconst frozenTSA = checkFrozen `` && checkFrozen `\\0` && checkFrozen `\\n` && checkFrozen `\\u0000`;\n/** Polyfill of https://github.com/tc39/proposal-array-is-template-object */\nfunction isTemplateObject(templateObj) {\n /*\n * ############################## WARNING ##############################\n *\n * If you are reading this code to understand how to create a value\n * that satisfies this check, STOP and read this paragraph.\n *\n * This function is there to ensure that our tagged template functions are\n * always called using the tag syntax fn`...`, rather than the normal\n * function syntax fn(...). Bypassing this check invalidates the guarantees\n * that safevalues provides and will result in security issues in your code.\n *\n * If you are stuck and not sure how to proceed, please reach out to us\n * instead through:\n * - https://github.com/google/safevalues/issues\n *\n * ############################## WARNING ##############################\n */\n if (!Array.isArray(templateObj) || !Array.isArray(templateObj.raw)) {\n return false;\n }\n if (templateObj.length !== templateObj.raw.length) {\n return false;\n }\n if (!isTranspiled && templateObj === templateObj.raw) {\n // Sometimes transpilers use the same array to save on codesize if the\n // template has no special characters that would cause the values in each\n // array to be different.\n return false;\n }\n if ((!isTranspiled || frozenTSA) && !checkFrozen(templateObj)) {\n // Transpilers typically don't freeze `TemplateStringsArray` objects, but we\n // expect that if they did, they would do it consistently, so we also\n // dynamically check if they do.\n return false;\n }\n return true;\n}\n","/**\n * @license\n * SPDX-License-Identifier: Apache-2.0\n */\n/**\n * The name of the Trusted Types policy used by TS safevalues, or empty\n * to disable Trusted Types. This duplicates the 'google#safe', but\n * can be overridden in tests.\n */\nlet trustedTypesPolicyName = 'google#safe';\n/** Helper to retrieve the value of `window.trustedTypes`. */\nfunction trustedTypes() {\n if (typeof window !== 'undefined') {\n return window.trustedTypes;\n }\n return undefined;\n}\n/**\n * Returns window.trustedTypes if Trusted Types are enabled and supported, or\n * null otherwise.\n */\nexport function getTrustedTypes() {\n var _a;\n return trustedTypesPolicyName !== '' ? (_a = trustedTypes()) !== null && _a !== void 0 ? _a : null : null;\n}\n/**\n * The Trusted Types policy used by TS safevalues, or null if Trusted Types\n * are not enabled/supported, or undefined if the policy has not been created\n * yet.\n */\nlet trustedTypesPolicy;\n/**\n * Returns the Trusted Types policy used by TS safevalues, or null if Trusted\n * Types are not enabled/supported. The first call to this function will\n * create the policy.\n */\nexport function getTrustedTypesPolicy() {\n var _a, _b;\n if (trustedTypesPolicy === undefined) {\n try {\n trustedTypesPolicy =\n (_b = (_a = getTrustedTypes()) === null || _a === void 0 ? void 0 : _a.createPolicy(trustedTypesPolicyName, {\n createHTML: (s) => s,\n createScript: (s) => s,\n createScriptURL: (s) => s,\n })) !== null && _b !== void 0 ? _b : null;\n }\n catch (_c) {\n // In Chromium versions before 81, trustedTypes.createPolicy throws if\n // called with a name that is already registered, even if no CSP is set.\n // Until users have largely migrated to 81 or above, catch the error not\n // to break the applications functionally. In such case, the code will\n // fall back to using regular Safe Types.\n trustedTypesPolicy = null;\n }\n }\n return trustedTypesPolicy;\n}\n/** Helpers for tests. */\nexport const TEST_ONLY = {\n resetDefaults() {\n trustedTypesPolicy = undefined;\n trustedTypesPolicyName = 'google#safe';\n },\n setTrustedTypesPolicyName(name) {\n trustedTypesPolicyName = name;\n },\n};\n","/**\n * @license\n * SPDX-License-Identifier: Apache-2.0\n */\nimport '../environment/dev.js';\nimport { ensureTokenIsValid, secretToken } from './secrets.js';\nimport { getTrustedTypes, getTrustedTypesPolicy } from './trusted_types.js';\n/**\n * Runtime implementation of `TrustedScriptURL` in browsers that don't support\n * it.\n */\nclass ResourceUrlImpl {\n constructor(url, token) {\n ensureTokenIsValid(token);\n this.privateDoNotAccessOrElseWrappedResourceUrl = url;\n }\n toString() {\n return this.privateDoNotAccessOrElseWrappedResourceUrl.toString();\n }\n}\nconst GlobalTrustedScriptURL = typeof window !== 'undefined' ? window.TrustedScriptURL : undefined;\n/**\n * Also exports the constructor so that instanceof checks work.\n */\nexport const TrustedResourceUrl = (GlobalTrustedScriptURL !== null && GlobalTrustedScriptURL !== void 0 ? GlobalTrustedScriptURL : ResourceUrlImpl);\n/**\n * Builds a new `TrustedResourceUrl` from the given string, without\n * enforcing safety guarantees. It may cause side effects by creating a Trusted\n * Types policy. This shouldn't be exposed to application developers, and must\n * only be used as a step towards safe builders or safe constants.\n */\nexport function createResourceUrlInternal(url) {\n var _a;\n /** @noinline */\n const noinlineUrl = url;\n const trustedScriptURL = (_a = getTrustedTypesPolicy()) === null || _a === void 0 ? void 0 : _a.createScriptURL(noinlineUrl);\n return (trustedScriptURL !== null && trustedScriptURL !== void 0 ? trustedScriptURL : new ResourceUrlImpl(noinlineUrl, secretToken));\n}\n/**\n * Checks if the given value is a `TrustedResourceUrl` instance.\n */\nexport function isResourceUrl(value) {\n var _a;\n return (((_a = getTrustedTypes()) === null || _a === void 0 ? void 0 : _a.isScriptURL(value)) || value instanceof ResourceUrlImpl);\n}\n/**\n * Returns the value of the passed `TrustedResourceUrl` object while ensuring it\n * has the correct type.\n *\n * Returns a native `TrustedScriptURL` or a string if Trusted Types are\n * disabled.\n */\nexport function unwrapResourceUrl(value) {\n var _a;\n if ((_a = getTrustedTypes()) === null || _a === void 0 ? void 0 : _a.isScriptURL(value)) {\n return value;\n }\n else if (value instanceof ResourceUrlImpl) {\n return value.privateDoNotAccessOrElseWrappedResourceUrl;\n }\n else {\n let message = '';\n if (process.env.NODE_ENV !== 'production') {\n message = 'Unexpected type when unwrapping TrustedResourceUrl';\n }\n throw new Error(message);\n }\n}\n","/**\n * @license\n * SPDX-License-Identifier: Apache-2.0\n */\nimport '../environment/dev.js';\nimport { createResourceUrlInternal, unwrapResourceUrl, } from '../internals/resource_url_impl.js';\nimport { unwrapScript } from '../internals/script_impl.js';\nimport { assertIsTemplateObject } from '../internals/string_literal.js';\n/**\n * Check whether the base url contains a valid origin,\n *\n * A string for an origin must contain only alphanumeric or any of the\n * following: `-.:`, and must not be an IP address. Remember that, as per the\n * documentation for TrustedResourceUrl, the origin must be trustworthy.\n *\n * @param base The base url that contains an origin.\n */\nfunction hasValidOrigin(base) {\n if (!(/^https:\\/\\//.test(base) || /^\\/\\//.test(base))) {\n return false;\n }\n const originStart = base.indexOf('//') + 2;\n const originEnd = base.indexOf('/', originStart);\n // If the base url only contains the prefix (e.g. //), or the slash\n // for the origin is right after the prefix (e.g. ///), the origin is\n // missing.\n if (originEnd <= originStart) {\n throw new Error(`Can't interpolate data in a url's origin, ` +\n `Please make sure to fully specify the origin, terminated with '/'.`);\n }\n const origin = base.substring(originStart, originEnd);\n if (!/^[0-9a-z.:-]+$/i.test(origin)) {\n throw new Error('The origin contains unsupported characters.');\n }\n if (!/^[^:]*(:[0-9]+)?$/i.test(origin)) {\n throw new Error('Invalid port number.');\n }\n if (!/(^|\\.)[a-z][^.]*$/i.test(origin)) {\n throw new Error('The top-level domain must start with a letter.');\n }\n return true;\n}\n/**\n * Check whether the base url contains a valid about url at its beginning.\n *\n * An about url is either exactly 'about:blank' or 'about:blank#' where\n * can be an arbitrary string.\n *\n * @param base The base url.\n */\nfunction isValidAboutUrl(base) {\n if (!/^about:blank/.test(base)) {\n return false;\n }\n if (base !== 'about:blank' && !/^about:blank#/.test(base)) {\n throw new Error('The about url is invalid.');\n }\n return true;\n}\n/**\n * Check whether the base url contains a valid path start at its beginning.\n *\n * A valid path start is either a '/' or a '/' followed by at least one\n * character that is not '/' or '\\'.\n *\n * @param base The base url.\n */\nfunction isValidPathStart(base) {\n if (!/^\\//.test(base)) {\n return false;\n }\n if (base === '/' ||\n (base.length > 1 && base[1] !== '/' && base[1] !== '\\\\')) {\n return true;\n }\n throw new Error('The path start in the url is invalid.');\n}\n/**\n * Check whether the base url contains a valid relative path start at its\n * beginning.\n *\n * A valid relative path start is a non empty string that has no ':', '/' nor\n * '\\', and that is followed by a '/'.\n *\n * @param base The base url.\n */\nfunction isValidRelativePathStart(base) {\n // Using the RegExp syntax as the native JS RegExp syntax is not well handled\n // by some downstream bundlers with this regex.\n return new RegExp('^[^:\\\\s\\\\\\\\/]+/').test(base);\n}\n/**\n * Splits an url into segments using '?' and '#' delimiters.\n *\n * The URL can later be put back together by concatenating the returned segments\n * like: path + params + hash. Note that the delimiters '?' and '#' will\n * already be included in 'params' and 'hash' values respectively when these are\n * not empty.\n *\n * @param url The url to split.\n */\nfunction getUrlSegments(url) {\n const segments = url.split(/\\?|#/);\n const params = /\\?/.test(url) ? '?' + segments[1] : '';\n const hash = /#/.test(url) ? '#' + (params ? segments[2] : segments[1]) : '';\n return { path: segments[0], params, hash };\n}\n/**\n * Builds TrustedResourceUrl from a template literal.\n *\n * This factory is a template literal tag function. It should be called with\n * a template literal, with or without embedded expressions. For example,\n * trustedResourceUrl`//example.com/${bar}`;\n * or\n * trustedResourceUrl`//example.com`;\n *\n * When this function is called with a template literal without any embedded\n * expressions, the template string may contain anything as the whole URL is\n * a compile-time string constant.\n *\n * When this function is called with a template literal that contains embedded\n * expressions, the template must start with one of the following:\n * - `https:///`\n * - `///`\n * - `/`\n * - `/`\n * - `about:blank`\n * - `data:`\n *\n * `` must contain only alphanumeric or any of the following: `-.:`.\n * Remember that, as per the documentation for TrustedResourceUrl, the origin\n * must be trustworthy. An origin of \"example.com\" could be set with this\n * method, but would tie the security of your site to the security of\n * example.com. Similarly, formats that potentially cover redirects hosted\n * on a trusted origin are problematic, since that could lead to untrusted\n * origins.\n *\n * `` is either an empty string, or a non empty string that does not\n * start with '/' or '\\'.\n * In other words, `/` is either a '/' or a\n * '/' followed by at least one character that is not '/' or '\\'.\n *\n * ` is a non empty string that has no ':', '/' nor '\\'.\n *\n * `data:` (data URL) does not allow embedded expressions in the template\n * literal input.\n *\n * All embedded expressions are URL encoded when they are interpolated. Do not\n * embed expressions that are already URL encoded as they will be double encoded\n * by the builder.\n *\n * @param templateObj This contains the literal part of the template literal.\n * @param rest This represents the template's embedded expressions.\n */\nexport function trustedResourceUrl(templateObj, ...rest) {\n // Check if templateObj is actually from a template literal.\n if (process.env.NODE_ENV !== 'production') {\n assertIsTemplateObject(templateObj, rest.length);\n }\n if (rest.length === 0) {\n return createResourceUrlInternal(templateObj[0]);\n }\n const base = templateObj[0].toLowerCase();\n if (process.env.NODE_ENV !== 'production') {\n if (/^data:/.test(base)) {\n throw new Error('Data URLs cannot have expressions in the template literal input.');\n }\n if (!hasValidOrigin(base) &&\n !isValidPathStart(base) &&\n !isValidRelativePathStart(base) &&\n !isValidAboutUrl(base)) {\n throw new Error('Trying to interpolate expressions in an unsupported url format.');\n }\n }\n let url = templateObj[0];\n for (let i = 0; i < rest.length; i++) {\n url += encodeURIComponent(rest[i]) + templateObj[i + 1];\n }\n return createResourceUrlInternal(url);\n}\n/**\n * Creates a new TrustedResourceUrl with params added to the URL's search\n * parameters.\n *\n * @param params What to add to the URL. Parameters with value `null` or\n * `undefined` are skipped. Both keys and values will be encoded. Do not pass\n * pre-encoded values as this will result them being double encoded. If the\n * value is an array then the same parameter is added for every element in the\n * array.\n */\nexport function appendParams(trustedUrl, params) {\n const urlSegments = getUrlSegments(unwrapResourceUrl(trustedUrl).toString());\n let urlParams = urlSegments.params;\n let separator = urlParams.length ? '&' : '?';\n // for-of has a big polyfill.\n // tslint:disable-next-line:ban-iterable-foreach\n params.forEach((value, key) => {\n const values = value instanceof Array ? value : [value];\n for (let i = 0; i < values.length; i++) {\n const v = values[i];\n if (v === null || v === undefined) {\n continue;\n }\n urlParams +=\n separator +\n encodeURIComponent(key) +\n '=' +\n encodeURIComponent(String(v));\n separator = '&';\n }\n });\n return createResourceUrlInternal(urlSegments.path + urlParams + urlSegments.hash);\n}\nconst BEFORE_FRAGMENT_REGEXP = /[^#]*/;\n/**\n * Creates a new TrustedResourceUrl based on an existing one but with the\n * addition of a fragment (the part after `#`). If the URL already has a\n * fragment, it is replaced with the new one.\n * @param fragment The fragment to add to the URL, verbatim, without the leading\n * `#`. No additional escaping is applied.\n */\nexport function replaceFragment(trustedUrl, fragment) {\n const urlString = unwrapResourceUrl(trustedUrl).toString();\n return createResourceUrlInternal(BEFORE_FRAGMENT_REGEXP.exec(urlString)[0] + '#' + fragment);\n}\n/**\n * Creates a new TrustedResourceUrl based on an existing one with a single\n * subpath segment added to the end of the existing path and prior to any query\n * parameters and/or fragments that already exist in the URL.\n * @param pathSegment The singular sub path being added to the URL. Do not pass\n * a pre-encoded value as this will result in it being double encoded.\n */\nexport function appendPathSegment(trustedUrl, pathSegment) {\n const urlSegments = getUrlSegments(unwrapResourceUrl(trustedUrl).toString());\n const separator = urlSegments.path.slice(-1) === '/' ? '' : '/';\n const newPath = urlSegments.path + separator + encodeURIComponent(pathSegment);\n return createResourceUrlInternal(newPath + urlSegments.params + urlSegments.hash);\n}\n/**\n * Creates a `TrustedResourceUrl` by generating a `Blob` from a\n * `SafeScript` and then calling `URL.createObjectURL` with that `Blob`.\n *\n * Caller must call `URL.revokeObjectURL()` on the stringified url to\n * release the underlying `Blob`.\n */\nexport function objectUrlFromScript(safeScript) {\n const scriptContent = unwrapScript(safeScript).toString();\n const blob = new Blob([scriptContent], { type: 'text/javascript' });\n return createResourceUrlInternal(URL.createObjectURL(blob));\n}\n/**\n * A function to safely retrieve the base URI from the Window object and set it\n * at the beginning of a given path-relative (starts with \"/\") resource url.\n *\n * @param pathRelativeUrl The resource to which the origin shall be prepended.\n */\nexport function toAbsoluteResourceUrl(pathRelativeUrl) {\n const originalUrl = unwrapResourceUrl(pathRelativeUrl).toString();\n const qualifiedUrl = new URL(originalUrl, window.document.baseURI);\n return createResourceUrlInternal(qualifiedUrl.toString());\n}\n","/**\n * @license\n * SPDX-License-Identifier: Apache-2.0\n */\nimport { unwrapResourceUrl, } from '../../internals/resource_url_impl.js';\nimport { unwrapScript } from '../../internals/script_impl.js';\nimport { getScriptNonce } from '../globals/window.js';\n/** Propagates CSP nonce to dynamically created scripts. */\nfunction setNonceForScriptElement(script) {\n const win = script.ownerDocument && script.ownerDocument.defaultView;\n const nonce = getScriptNonce(win || window);\n if (nonce) {\n script.setAttribute('nonce', nonce);\n }\n}\n/** Sets textContent from the given SafeScript. */\nexport function setTextContent(script, v, options) {\n script.textContent = unwrapScript(v);\n if (options === null || options === void 0 ? void 0 : options.omitNonce)\n return;\n setNonceForScriptElement(script);\n}\n/** Sets the Src attribute using a TrustedResourceUrl */\nexport function setSrc(script, v, options) {\n script.src = unwrapResourceUrl(v);\n if (options === null || options === void 0 ? void 0 : options.omitNonce)\n return;\n setNonceForScriptElement(script);\n}\n","/**\n * @license\n * SPDX-License-Identifier: Apache-2.0\n */\nimport { unwrapUrlOrSanitize } from '../../builders/url_builders.js';\n/**\n * open calls {@link Window.open} on the given {@link Window}, given a\n * target {@link Url}.\n */\nexport function open(win, url, target, features) {\n const sanitizedUrl = unwrapUrlOrSanitize(url);\n if (sanitizedUrl !== undefined) {\n return win.open(sanitizedUrl, target, features);\n }\n return null;\n}\n/** Returns CSP nonce, if set for any script tag. */\nexport function getScriptNonce(win) {\n return getNonceFor('script', win);\n}\n/** Returns CSP nonce, if set for any style tag. */\nexport function getStyleNonce(win) {\n return getNonceFor('style', win);\n}\nfunction getNonceFor(elementName, win) {\n var _a;\n const doc = win.document;\n // document.querySelector can be undefined in non-browser environments.\n const el = (_a = doc.querySelector) === null || _a === void 0 ? void 0 : _a.call(doc, `${elementName}[nonce]`);\n if (el) {\n // Try to get the nonce from the IDL property first, because browsers that\n // implement additional nonce protection features (currently only Chrome) to\n // prevent nonce stealing via CSS do not expose the nonce via attributes.\n // See https://github.com/whatwg/html/issues/2369\n return el['nonce'] || el.getAttribute('nonce') || '';\n }\n return '';\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { CONSTANTS } from './constants';\nimport { getDefaults } from './defaults';\n\n/**\n * Type placeholder for `WorkerGlobalScope` from `webworker`\n */\ndeclare class WorkerGlobalScope {}\n\n/**\n * Returns navigator.userAgent string or '' if it's not defined.\n * @return user agent string\n */\nexport function getUA(): string {\n if (\n typeof navigator !== 'undefined' &&\n typeof navigator['userAgent'] === 'string'\n ) {\n return navigator['userAgent'];\n } else {\n return '';\n }\n}\n\n/**\n * Detect Cordova / PhoneGap / Ionic frameworks on a mobile device.\n *\n * Deliberately does not rely on checking `file://` URLs (as this fails PhoneGap\n * in the Ripple emulator) nor Cordova `onDeviceReady`, which would normally\n * wait for a callback.\n */\nexport function isMobileCordova(): boolean {\n return (\n typeof window !== 'undefined' &&\n // @ts-ignore Setting up an broadly applicable index signature for Window\n // just to deal with this case would probably be a bad idea.\n !!(window['cordova'] || window['phonegap'] || window['PhoneGap']) &&\n /ios|iphone|ipod|ipad|android|blackberry|iemobile/i.test(getUA())\n );\n}\n\n/**\n * Detect Node.js.\n *\n * @return true if Node.js environment is detected or specified.\n */\n// Node detection logic from: https://github.com/iliakan/detect-node/\nexport function isNode(): boolean {\n const forceEnvironment = getDefaults()?.forceEnvironment;\n if (forceEnvironment === 'node') {\n return true;\n } else if (forceEnvironment === 'browser') {\n return false;\n }\n\n try {\n return (\n Object.prototype.toString.call(global.process) === '[object process]'\n );\n } catch (e) {\n return false;\n }\n}\n\n/**\n * Detect Browser Environment\n */\nexport function isBrowser(): boolean {\n return typeof window !== 'undefined' || isWebWorker();\n}\n\n/**\n * Detect Web Worker context\n */\nexport function isWebWorker(): boolean {\n return (\n typeof WorkerGlobalScope !== 'undefined' &&\n typeof self !== 'undefined' &&\n self instanceof WorkerGlobalScope\n );\n}\n\n/**\n * Detect browser extensions (Chrome and Firefox at least).\n */\ninterface BrowserRuntime {\n id?: unknown;\n}\ndeclare const chrome: { runtime?: BrowserRuntime };\ndeclare const browser: { runtime?: BrowserRuntime };\nexport function isBrowserExtension(): boolean {\n const runtime =\n typeof chrome === 'object'\n ? chrome.runtime\n : typeof browser === 'object'\n ? browser.runtime\n : undefined;\n return typeof runtime === 'object' && runtime.id !== undefined;\n}\n\n/**\n * Detect React Native.\n *\n * @return true if ReactNative environment is detected.\n */\nexport function isReactNative(): boolean {\n return (\n typeof navigator === 'object' && navigator['product'] === 'ReactNative'\n );\n}\n\n/** Detects Electron apps. */\nexport function isElectron(): boolean {\n return getUA().indexOf('Electron/') >= 0;\n}\n\n/** Detects Internet Explorer. */\nexport function isIE(): boolean {\n const ua = getUA();\n return ua.indexOf('MSIE ') >= 0 || ua.indexOf('Trident/') >= 0;\n}\n\n/** Detects Universal Windows Platform apps. */\nexport function isUWP(): boolean {\n return getUA().indexOf('MSAppHost/') >= 0;\n}\n\n/**\n * Detect whether the current SDK build is the Node version.\n *\n * @return true if it's the Node SDK build.\n */\nexport function isNodeSdk(): boolean {\n return CONSTANTS.NODE_CLIENT === true || CONSTANTS.NODE_ADMIN === true;\n}\n\n/** Returns true if we are running in Safari. */\nexport function isSafari(): boolean {\n return (\n !isNode() &&\n !!navigator.userAgent &&\n navigator.userAgent.includes('Safari') &&\n !navigator.userAgent.includes('Chrome')\n );\n}\n\n/**\n * This method checks if indexedDB is supported by current browser/service worker context\n * @return true if indexedDB is supported by current browser/service worker context\n */\nexport function isIndexedDBAvailable(): boolean {\n try {\n return typeof indexedDB === 'object';\n } catch (e) {\n return false;\n }\n}\n\n/**\n * This method validates browser/sw context for indexedDB by opening a dummy indexedDB database and reject\n * if errors occur during the database open operation.\n *\n * @throws exception if current browser/sw context can't run idb.open (ex: Safari iframe, Firefox\n * private browsing)\n */\nexport function validateIndexedDBOpenable(): Promise {\n return new Promise((resolve, reject) => {\n try {\n let preExist: boolean = true;\n const DB_CHECK_NAME =\n 'validate-browser-context-for-indexeddb-analytics-module';\n const request = self.indexedDB.open(DB_CHECK_NAME);\n request.onsuccess = () => {\n request.result.close();\n // delete database only when it doesn't pre-exist\n if (!preExist) {\n self.indexedDB.deleteDatabase(DB_CHECK_NAME);\n }\n resolve(true);\n };\n request.onupgradeneeded = () => {\n preExist = false;\n };\n\n request.onerror = () => {\n reject(request.error?.message || '');\n };\n } catch (error) {\n reject(error);\n }\n });\n}\n\n/**\n *\n * This method checks whether cookie is enabled within current browser\n * @return true if cookie is enabled within current browser\n */\nexport function areCookiesEnabled(): boolean {\n if (typeof navigator === 'undefined' || !navigator.cookieEnabled) {\n return false;\n }\n return true;\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * @fileoverview 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 as FirebaseError)?.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]: unknown;\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 /** The custom name for all FirebaseErrors. */\n readonly name: string = ERROR_NAME;\n\n constructor(\n /** The error code for this error. */\n readonly code: string,\n message: string,\n /** Custom data for this error. */\n public customData?: Record\n ) {\n super(message);\n\n // Fix For ES5\n // https://github.com/Microsoft/TypeScript-wiki/blob/master/Breaking-Changes.md#extending-built-ins-like-error-array-and-map-may-no-longer-work\n Object.setPrototypeOf(this, FirebaseError.prototype);\n\n // Maintains proper stack trace for where our error was thrown.\n // Only available on V8.\n if (Error.captureStackTrace) {\n Error.captureStackTrace(this, ErrorFactory.prototype.create);\n }\n }\n}\n\nexport class ErrorFactory<\n ErrorCode extends string,\n ErrorParams extends { readonly [K in ErrorCode]?: ErrorData } = {}\n> {\n constructor(\n private readonly service: string,\n private readonly serviceName: string,\n private readonly errors: ErrorMap\n ) {}\n\n create(\n code: K,\n ...data: K extends keyof ErrorParams ? [ErrorParams[K]] : []\n ): FirebaseError {\n const customData = (data[0] as ErrorData) || {};\n const fullCode = `${this.service}/${code}`;\n const template = this.errors[code];\n\n const message = template ? replaceTemplate(template, customData) : 'Error';\n // Service Name: Error message (service/code).\n const fullMessage = `${this.serviceName}: ${message} (${fullCode}).`;\n\n const error = new FirebaseError(fullCode, fullMessage, customData);\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 ? String(value) : `<${key}?>`;\n });\n}\n\nconst PATTERN = /\\{\\$([^}]+)}/g;\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nexport function contains(obj: T, key: string): boolean {\n return Object.prototype.hasOwnProperty.call(obj, key);\n}\n\nexport function safeGet(\n obj: T,\n key: K\n): T[K] | undefined {\n if (Object.prototype.hasOwnProperty.call(obj, key)) {\n return obj[key];\n } else {\n return undefined;\n }\n}\n\nexport function isEmpty(obj: object): obj is {} {\n for (const key in obj) {\n if (Object.prototype.hasOwnProperty.call(obj, key)) {\n return false;\n }\n }\n return true;\n}\n\nexport function map(\n obj: { [key in K]: V },\n fn: (value: V, key: K, obj: { [key in K]: V }) => U,\n contextObj?: unknown\n): { [key in K]: U } {\n const res: Partial<{ [key in K]: U }> = {};\n for (const key in obj) {\n if (Object.prototype.hasOwnProperty.call(obj, key)) {\n res[key] = fn.call(contextObj, obj[key], key, obj);\n }\n }\n return res as { [key in K]: U };\n}\n\n/**\n * Deep equal two objects. Support Arrays and Objects.\n */\nexport function deepEqual(a: object, b: object): boolean {\n if (a === b) {\n return true;\n }\n\n const aKeys = Object.keys(a);\n const bKeys = Object.keys(b);\n for (const k of aKeys) {\n if (!bKeys.includes(k)) {\n return false;\n }\n\n const aProp = (a as Record)[k];\n const bProp = (b as Record)[k];\n if (isObject(aProp) && isObject(bProp)) {\n if (!deepEqual(aProp, bProp)) {\n return false;\n }\n } else if (aProp !== bProp) {\n return false;\n }\n }\n\n for (const k of bKeys) {\n if (!aKeys.includes(k)) {\n return false;\n }\n }\n return true;\n}\n\nfunction isObject(thing: unknown): thing is object {\n return thing !== null && typeof thing === 'object';\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * The amount of milliseconds to exponentially increase.\n */\nconst DEFAULT_INTERVAL_MILLIS = 1000;\n\n/**\n * The factor to backoff by.\n * Should be a number greater than 1.\n */\nconst DEFAULT_BACKOFF_FACTOR = 2;\n\n/**\n * The maximum milliseconds to increase to.\n *\n *

Visible for testing\n */\nexport const MAX_VALUE_MILLIS = 4 * 60 * 60 * 1000; // Four hours, like iOS and Android.\n\n/**\n * The percentage of backoff time to randomize by.\n * See\n * http://go/safe-client-behavior#step-1-determine-the-appropriate-retry-interval-to-handle-spike-traffic\n * for context.\n *\n *

Visible for testing\n */\nexport const RANDOM_FACTOR = 0.5;\n\n/**\n * Based on the backoff method from\n * https://github.com/google/closure-library/blob/master/closure/goog/math/exponentialbackoff.js.\n * Extracted here so we don't need to pass metadata and a stateful ExponentialBackoff object around.\n */\nexport function calculateBackoffMillis(\n backoffCount: number,\n intervalMillis: number = DEFAULT_INTERVAL_MILLIS,\n backoffFactor: number = DEFAULT_BACKOFF_FACTOR\n): number {\n // Calculates an exponentially increasing value.\n // Deviation: calculates value from count and a constant interval, so we only need to save value\n // and count to restore state.\n const currBaseValue = intervalMillis * Math.pow(backoffFactor, backoffCount);\n\n // A random \"fuzz\" to avoid waves of retries.\n // Deviation: randomFactor is required.\n const randomWait = Math.round(\n // A fraction of the backoff value to add/subtract.\n // Deviation: changes multiplication order to improve readability.\n RANDOM_FACTOR *\n currBaseValue *\n // A random float (rounded to int by Math.round above) in the range [-1, 1]. Determines\n // if we add or subtract.\n (Math.random() - 0.5) *\n 2\n );\n\n // Limits backoff to max to avoid effectively permanent backoff.\n return Math.min(MAX_VALUE_MILLIS, currBaseValue + randomWait);\n}\n","/**\n * @license\n * Copyright 2021 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nexport interface Compat {\n _delegate: T;\n}\n\nexport function getModularInstance(\n service: Compat | ExpService\n): ExpService {\n if (service && (service as Compat)._delegate) {\n return (service as Compat)._delegate;\n } else {\n return service as ExpService;\n }\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport {\n InstantiationMode,\n InstanceFactory,\n ComponentType,\n Dictionary,\n Name,\n onInstanceCreatedCallback\n} from './types';\n\n/**\n * Component for service name T, e.g. `auth`, `auth-internal`\n */\nexport class Component {\n multipleInstances = false;\n /**\n * Properties to be added to the service namespace\n */\n serviceProps: Dictionary = {};\n\n instantiationMode = InstantiationMode.LAZY;\n\n onInstanceCreated: onInstanceCreatedCallback | null = null;\n\n /**\n *\n * @param name The public service name, e.g. app, auth, firestore, database\n * @param instanceFactory Service factory responsible for creating the public interface\n * @param type whether the service provided by the component is public or private\n */\n constructor(\n readonly name: T,\n readonly instanceFactory: InstanceFactory,\n readonly type: ComponentType\n ) {}\n\n setInstantiationMode(mode: InstantiationMode): this {\n this.instantiationMode = mode;\n return this;\n }\n\n setMultipleInstances(multipleInstances: boolean): this {\n this.multipleInstances = multipleInstances;\n return this;\n }\n\n setServiceProps(props: Dictionary): this {\n this.serviceProps = props;\n return this;\n }\n\n setInstanceCreatedCallback(callback: onInstanceCreatedCallback): this {\n this.onInstanceCreated = callback;\n return this;\n }\n}\n","const instanceOfAny = (object, constructors) => constructors.some((c) => object instanceof c);\n\nlet idbProxyableTypes;\nlet cursorAdvanceMethods;\n// This is a function to prevent it throwing up in node environments.\nfunction getIdbProxyableTypes() {\n return (idbProxyableTypes ||\n (idbProxyableTypes = [\n IDBDatabase,\n IDBObjectStore,\n IDBIndex,\n IDBCursor,\n IDBTransaction,\n ]));\n}\n// This is a function to prevent it throwing up in node environments.\nfunction getCursorAdvanceMethods() {\n return (cursorAdvanceMethods ||\n (cursorAdvanceMethods = [\n IDBCursor.prototype.advance,\n IDBCursor.prototype.continue,\n IDBCursor.prototype.continuePrimaryKey,\n ]));\n}\nconst cursorRequestMap = new WeakMap();\nconst transactionDoneMap = new WeakMap();\nconst transactionStoreNamesMap = new WeakMap();\nconst transformCache = new WeakMap();\nconst reverseTransformCache = new WeakMap();\nfunction promisifyRequest(request) {\n const promise = new Promise((resolve, reject) => {\n const unlisten = () => {\n request.removeEventListener('success', success);\n request.removeEventListener('error', error);\n };\n const success = () => {\n resolve(wrap(request.result));\n unlisten();\n };\n const error = () => {\n reject(request.error);\n unlisten();\n };\n request.addEventListener('success', success);\n request.addEventListener('error', error);\n });\n promise\n .then((value) => {\n // Since cursoring reuses the IDBRequest (*sigh*), we cache it for later retrieval\n // (see wrapFunction).\n if (value instanceof IDBCursor) {\n cursorRequestMap.set(value, request);\n }\n // Catching to avoid \"Uncaught Promise exceptions\"\n })\n .catch(() => { });\n // This mapping exists in reverseTransformCache but doesn't doesn't exist in transformCache. This\n // is because we create many promises from a single IDBRequest.\n reverseTransformCache.set(promise, request);\n return promise;\n}\nfunction cacheDonePromiseForTransaction(tx) {\n // Early bail if we've already created a done promise for this transaction.\n if (transactionDoneMap.has(tx))\n return;\n const done = new Promise((resolve, reject) => {\n const unlisten = () => {\n tx.removeEventListener('complete', complete);\n tx.removeEventListener('error', error);\n tx.removeEventListener('abort', error);\n };\n const complete = () => {\n resolve();\n unlisten();\n };\n const error = () => {\n reject(tx.error || new DOMException('AbortError', 'AbortError'));\n unlisten();\n };\n tx.addEventListener('complete', complete);\n tx.addEventListener('error', error);\n tx.addEventListener('abort', error);\n });\n // Cache it for later retrieval.\n transactionDoneMap.set(tx, done);\n}\nlet idbProxyTraps = {\n get(target, prop, receiver) {\n if (target instanceof IDBTransaction) {\n // Special handling for transaction.done.\n if (prop === 'done')\n return transactionDoneMap.get(target);\n // Polyfill for objectStoreNames because of Edge.\n if (prop === 'objectStoreNames') {\n return target.objectStoreNames || transactionStoreNamesMap.get(target);\n }\n // Make tx.store return the only store in the transaction, or undefined if there are many.\n if (prop === 'store') {\n return receiver.objectStoreNames[1]\n ? undefined\n : receiver.objectStore(receiver.objectStoreNames[0]);\n }\n }\n // Else transform whatever we get back.\n return wrap(target[prop]);\n },\n set(target, prop, value) {\n target[prop] = value;\n return true;\n },\n has(target, prop) {\n if (target instanceof IDBTransaction &&\n (prop === 'done' || prop === 'store')) {\n return true;\n }\n return prop in target;\n },\n};\nfunction replaceTraps(callback) {\n idbProxyTraps = callback(idbProxyTraps);\n}\nfunction wrapFunction(func) {\n // Due to expected object equality (which is enforced by the caching in `wrap`), we\n // only create one new func per func.\n // Edge doesn't support objectStoreNames (booo), so we polyfill it here.\n if (func === IDBDatabase.prototype.transaction &&\n !('objectStoreNames' in IDBTransaction.prototype)) {\n return function (storeNames, ...args) {\n const tx = func.call(unwrap(this), storeNames, ...args);\n transactionStoreNamesMap.set(tx, storeNames.sort ? storeNames.sort() : [storeNames]);\n return wrap(tx);\n };\n }\n // Cursor methods are special, as the behaviour is a little more different to standard IDB. In\n // IDB, you advance the cursor and wait for a new 'success' on the IDBRequest that gave you the\n // cursor. It's kinda like a promise that can resolve with many values. That doesn't make sense\n // with real promises, so each advance methods returns a new promise for the cursor object, or\n // undefined if the end of the cursor has been reached.\n if (getCursorAdvanceMethods().includes(func)) {\n return function (...args) {\n // Calling the original function with the proxy as 'this' causes ILLEGAL INVOCATION, so we use\n // the original object.\n func.apply(unwrap(this), args);\n return wrap(cursorRequestMap.get(this));\n };\n }\n return function (...args) {\n // Calling the original function with the proxy as 'this' causes ILLEGAL INVOCATION, so we use\n // the original object.\n return wrap(func.apply(unwrap(this), args));\n };\n}\nfunction transformCachableValue(value) {\n if (typeof value === 'function')\n return wrapFunction(value);\n // This doesn't return, it just creates a 'done' promise for the transaction,\n // which is later returned for transaction.done (see idbObjectHandler).\n if (value instanceof IDBTransaction)\n cacheDonePromiseForTransaction(value);\n if (instanceOfAny(value, getIdbProxyableTypes()))\n return new Proxy(value, idbProxyTraps);\n // Return the same value back if we're not going to transform it.\n return value;\n}\nfunction wrap(value) {\n // We sometimes generate multiple promises from a single IDBRequest (eg when cursoring), because\n // IDB is weird and a single IDBRequest can yield many responses, so these can't be cached.\n if (value instanceof IDBRequest)\n return promisifyRequest(value);\n // If we've already transformed this value before, reuse the transformed value.\n // This is faster, but it also provides object equality.\n if (transformCache.has(value))\n return transformCache.get(value);\n const newValue = transformCachableValue(value);\n // Not all types are transformed.\n // These may be primitive types, so they can't be WeakMap keys.\n if (newValue !== value) {\n transformCache.set(value, newValue);\n reverseTransformCache.set(newValue, value);\n }\n return newValue;\n}\nconst unwrap = (value) => reverseTransformCache.get(value);\n\nexport { reverseTransformCache as a, instanceOfAny as i, replaceTraps as r, unwrap as u, wrap as w };\n","import { w as wrap, r as replaceTraps } from './wrap-idb-value.js';\nexport { u as unwrap, w as wrap } from './wrap-idb-value.js';\n\n/**\n * Open a database.\n *\n * @param name Name of the database.\n * @param version Schema version.\n * @param callbacks Additional callbacks.\n */\nfunction openDB(name, version, { blocked, upgrade, blocking, terminated } = {}) {\n const request = indexedDB.open(name, version);\n const openPromise = wrap(request);\n if (upgrade) {\n request.addEventListener('upgradeneeded', (event) => {\n upgrade(wrap(request.result), event.oldVersion, event.newVersion, wrap(request.transaction), event);\n });\n }\n if (blocked) {\n request.addEventListener('blocked', (event) => blocked(\n // Casting due to https://github.com/microsoft/TypeScript-DOM-lib-generator/pull/1405\n event.oldVersion, event.newVersion, event));\n }\n openPromise\n .then((db) => {\n if (terminated)\n db.addEventListener('close', () => terminated());\n if (blocking) {\n db.addEventListener('versionchange', (event) => blocking(event.oldVersion, event.newVersion, event));\n }\n })\n .catch(() => { });\n return openPromise;\n}\n/**\n * Delete a database.\n *\n * @param name Name of the database.\n */\nfunction deleteDB(name, { blocked } = {}) {\n const request = indexedDB.deleteDatabase(name);\n if (blocked) {\n request.addEventListener('blocked', (event) => blocked(\n // Casting due to https://github.com/microsoft/TypeScript-DOM-lib-generator/pull/1405\n event.oldVersion, event));\n }\n return wrap(request).then(() => undefined);\n}\n\nconst readMethods = ['get', 'getKey', 'getAll', 'getAllKeys', 'count'];\nconst writeMethods = ['put', 'add', 'delete', 'clear'];\nconst cachedMethods = new Map();\nfunction getMethod(target, prop) {\n if (!(target instanceof IDBDatabase &&\n !(prop in target) &&\n typeof prop === 'string')) {\n return;\n }\n if (cachedMethods.get(prop))\n return cachedMethods.get(prop);\n const targetFuncName = prop.replace(/FromIndex$/, '');\n const useIndex = prop !== targetFuncName;\n const isWrite = writeMethods.includes(targetFuncName);\n if (\n // Bail if the target doesn't exist on the target. Eg, getAll isn't in Edge.\n !(targetFuncName in (useIndex ? IDBIndex : IDBObjectStore).prototype) ||\n !(isWrite || readMethods.includes(targetFuncName))) {\n return;\n }\n const method = async function (storeName, ...args) {\n // isWrite ? 'readwrite' : undefined gzipps better, but fails in Edge :(\n const tx = this.transaction(storeName, isWrite ? 'readwrite' : 'readonly');\n let target = tx.store;\n if (useIndex)\n target = target.index(args.shift());\n // Must reject if op rejects.\n // If it's a write operation, must reject if tx.done rejects.\n // Must reject with op rejection first.\n // Must resolve with op value.\n // Must handle both promises (no unhandled rejections)\n return (await Promise.all([\n target[targetFuncName](...args),\n isWrite && tx.done,\n ]))[0];\n };\n cachedMethods.set(prop, method);\n return method;\n}\nreplaceTraps((oldTraps) => ({\n ...oldTraps,\n get: (target, prop, receiver) => getMethod(target, prop) || oldTraps.get(target, prop, receiver),\n has: (target, prop) => !!getMethod(target, prop) || oldTraps.has(target, prop),\n}));\n\nexport { deleteDB, openDB };\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { ErrorFactory, FirebaseError } from '@firebase/util';\nimport { SERVICE, SERVICE_NAME } from './constants';\n\nexport const enum ErrorCode {\n MISSING_APP_CONFIG_VALUES = 'missing-app-config-values',\n NOT_REGISTERED = 'not-registered',\n INSTALLATION_NOT_FOUND = 'installation-not-found',\n REQUEST_FAILED = 'request-failed',\n APP_OFFLINE = 'app-offline',\n DELETE_PENDING_REGISTRATION = 'delete-pending-registration'\n}\n\nconst ERROR_DESCRIPTION_MAP: { readonly [key in ErrorCode]: string } = {\n [ErrorCode.MISSING_APP_CONFIG_VALUES]:\n 'Missing App configuration value: \"{$valueName}\"',\n [ErrorCode.NOT_REGISTERED]: 'Firebase Installation is not registered.',\n [ErrorCode.INSTALLATION_NOT_FOUND]: 'Firebase Installation not found.',\n [ErrorCode.REQUEST_FAILED]:\n '{$requestName} request failed with error \"{$serverCode} {$serverStatus}: {$serverMessage}\"',\n [ErrorCode.APP_OFFLINE]: 'Could not process request. Application offline.',\n [ErrorCode.DELETE_PENDING_REGISTRATION]:\n \"Can't delete installation while there is a pending registration request.\"\n};\n\ninterface ErrorParams {\n [ErrorCode.MISSING_APP_CONFIG_VALUES]: {\n valueName: string;\n };\n [ErrorCode.REQUEST_FAILED]: {\n requestName: string;\n [index: string]: string | number; // to make Typescript 3.8 happy\n } & ServerErrorData;\n}\n\nexport const ERROR_FACTORY = new ErrorFactory(\n SERVICE,\n SERVICE_NAME,\n ERROR_DESCRIPTION_MAP\n);\n\nexport interface ServerErrorData {\n serverCode: number;\n serverMessage: string;\n serverStatus: string;\n}\n\nexport type ServerError = FirebaseError & { customData: 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 LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { version } from '../../package.json';\n\nexport const PENDING_TIMEOUT_MS = 10000;\n\nexport const PACKAGE_VERSION = `w:${version}`;\nexport const INTERNAL_AUTH_VERSION = 'FIS_v2';\n\nexport const INSTALLATIONS_API_URL =\n 'https://firebaseinstallations.googleapis.com/v1';\n\nexport const TOKEN_EXPIRATION_BUFFER = 60 * 60 * 1000; // One hour\n\nexport const SERVICE = 'installations';\nexport const SERVICE_NAME = 'Installations';\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { FirebaseError } from '@firebase/util';\nimport { GenerateAuthTokenResponse } from '../interfaces/api-response';\nimport {\n CompletedAuthToken,\n RegisteredInstallationEntry,\n RequestStatus\n} from '../interfaces/installation-entry';\nimport {\n INSTALLATIONS_API_URL,\n INTERNAL_AUTH_VERSION\n} from '../util/constants';\nimport { ERROR_FACTORY, ErrorCode } from '../util/errors';\nimport { AppConfig } from '../interfaces/installation-impl';\n\nexport function getInstallationsEndpoint({ projectId }: AppConfig): string {\n return `${INSTALLATIONS_API_URL}/projects/${projectId}/installations`;\n}\n\nexport function extractAuthTokenInfoFromResponse(\n response: GenerateAuthTokenResponse\n): CompletedAuthToken {\n return {\n token: response.token,\n requestStatus: RequestStatus.COMPLETED,\n expiresIn: getExpiresInFromResponseExpiresIn(response.expiresIn),\n creationTime: Date.now()\n };\n}\n\nexport async function getErrorFromResponse(\n requestName: string,\n response: Response\n): Promise {\n const responseJson: ErrorResponse = await response.json();\n const errorData = responseJson.error;\n return ERROR_FACTORY.create(ErrorCode.REQUEST_FAILED, {\n requestName,\n serverCode: errorData.code,\n serverMessage: errorData.message,\n serverStatus: errorData.status\n });\n}\n\nexport function getHeaders({ apiKey }: AppConfig): Headers {\n return new Headers({\n 'Content-Type': 'application/json',\n Accept: 'application/json',\n 'x-goog-api-key': apiKey\n });\n}\n\nexport function getHeadersWithAuth(\n appConfig: AppConfig,\n { refreshToken }: RegisteredInstallationEntry\n): Headers {\n const headers = getHeaders(appConfig);\n headers.append('Authorization', getAuthorizationHeader(refreshToken));\n return headers;\n}\n\nexport interface ErrorResponse {\n error: {\n code: number;\n message: string;\n status: string;\n };\n}\n\n/**\n * Calls the passed in fetch wrapper and returns the response.\n * If the returned response has a status of 5xx, re-runs the function once and\n * returns the response.\n */\nexport async function retryIfServerError(\n fn: () => Promise\n): Promise {\n const result = await fn();\n\n if (result.status >= 500 && result.status < 600) {\n // Internal Server Error. Retry request.\n return fn();\n }\n\n return result;\n}\n\nfunction getExpiresInFromResponseExpiresIn(responseExpiresIn: string): number {\n // This works because the server will never respond with fractions of a second.\n return Number(responseExpiresIn.replace('s', '000'));\n}\n\nfunction getAuthorizationHeader(refreshToken: string): string {\n return `${INTERNAL_AUTH_VERSION} ${refreshToken}`;\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** Returns a promise that resolves after given time passes. */\nexport function sleep(ms: number): Promise {\n return new Promise(resolve => {\n setTimeout(resolve, ms);\n });\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { bufferToBase64UrlSafe } from './buffer-to-base64-url-safe';\n\nexport const VALID_FID_PATTERN = /^[cdef][\\w-]{21}$/;\nexport const INVALID_FID = '';\n\n/**\n * Generates a new FID using random values from Web Crypto API.\n * Returns an empty string if FID generation fails for any reason.\n */\nexport function generateFid(): string {\n try {\n // A valid FID has exactly 22 base64 characters, which is 132 bits, or 16.5\n // bytes. our implementation generates a 17 byte array instead.\n const fidByteArray = new Uint8Array(17);\n const crypto =\n self.crypto || (self as unknown as { msCrypto: Crypto }).msCrypto;\n crypto.getRandomValues(fidByteArray);\n\n // Replace the first 4 random bits with the constant FID header of 0b0111.\n fidByteArray[0] = 0b01110000 + (fidByteArray[0] % 0b00010000);\n\n const fid = encode(fidByteArray);\n\n return VALID_FID_PATTERN.test(fid) ? fid : INVALID_FID;\n } catch {\n // FID generation errored\n return INVALID_FID;\n }\n}\n\n/** Converts a FID Uint8Array to a base64 string representation. */\nfunction encode(fidByteArray: Uint8Array): string {\n const b64String = bufferToBase64UrlSafe(fidByteArray);\n\n // Remove the 23rd character that was added because of the extra 4 bits at the\n // end of our 17 byte array, and the '=' padding.\n return b64String.substr(0, 22);\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nexport function bufferToBase64UrlSafe(array: Uint8Array): string {\n const b64 = btoa(String.fromCharCode(...array));\n return b64.replace(/\\+/g, '-').replace(/\\//g, '_');\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { AppConfig } from '../interfaces/installation-impl';\n\n/** Returns a string key that can be used to identify the app. */\nexport function getKey(appConfig: AppConfig): string {\n return `${appConfig.appName}!${appConfig.appId}`;\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { getKey } from '../util/get-key';\nimport { AppConfig } from '../interfaces/installation-impl';\nimport { IdChangeCallbackFn } from '../api';\n\nconst fidChangeCallbacks: Map> = new Map();\n\n/**\n * Calls the onIdChange callbacks with the new FID value, and broadcasts the\n * change to other tabs.\n */\nexport function fidChanged(appConfig: AppConfig, fid: string): void {\n const key = getKey(appConfig);\n\n callFidChangeCallbacks(key, fid);\n broadcastFidChange(key, fid);\n}\n\nexport function addCallback(\n appConfig: AppConfig,\n callback: IdChangeCallbackFn\n): void {\n // Open the broadcast channel if it's not already open,\n // to be able to listen to change events from other tabs.\n getBroadcastChannel();\n\n const key = getKey(appConfig);\n\n let callbackSet = fidChangeCallbacks.get(key);\n if (!callbackSet) {\n callbackSet = new Set();\n fidChangeCallbacks.set(key, callbackSet);\n }\n callbackSet.add(callback);\n}\n\nexport function removeCallback(\n appConfig: AppConfig,\n callback: IdChangeCallbackFn\n): void {\n const key = getKey(appConfig);\n\n const callbackSet = fidChangeCallbacks.get(key);\n\n if (!callbackSet) {\n return;\n }\n\n callbackSet.delete(callback);\n if (callbackSet.size === 0) {\n fidChangeCallbacks.delete(key);\n }\n\n // Close broadcast channel if there are no more callbacks.\n closeBroadcastChannel();\n}\n\nfunction callFidChangeCallbacks(key: string, fid: string): void {\n const callbacks = fidChangeCallbacks.get(key);\n if (!callbacks) {\n return;\n }\n\n for (const callback of callbacks) {\n callback(fid);\n }\n}\n\nfunction broadcastFidChange(key: string, fid: string): void {\n const channel = getBroadcastChannel();\n if (channel) {\n channel.postMessage({ key, fid });\n }\n closeBroadcastChannel();\n}\n\nlet broadcastChannel: BroadcastChannel | null = null;\n/** Opens and returns a BroadcastChannel if it is supported by the browser. */\nfunction getBroadcastChannel(): BroadcastChannel | null {\n if (!broadcastChannel && 'BroadcastChannel' in self) {\n broadcastChannel = new BroadcastChannel('[Firebase] FID Change');\n broadcastChannel.onmessage = e => {\n callFidChangeCallbacks(e.data.key, e.data.fid);\n };\n }\n return broadcastChannel;\n}\n\nfunction closeBroadcastChannel(): void {\n if (fidChangeCallbacks.size === 0 && broadcastChannel) {\n broadcastChannel.close();\n broadcastChannel = null;\n }\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { DBSchema, IDBPDatabase, openDB } from 'idb';\nimport { AppConfig } from '../interfaces/installation-impl';\nimport { InstallationEntry } from '../interfaces/installation-entry';\nimport { getKey } from '../util/get-key';\nimport { fidChanged } from './fid-changed';\n\nconst DATABASE_NAME = 'firebase-installations-database';\nconst DATABASE_VERSION = 1;\nconst OBJECT_STORE_NAME = 'firebase-installations-store';\n\ninterface InstallationsDB extends DBSchema {\n 'firebase-installations-store': {\n key: string;\n value: InstallationEntry | undefined;\n };\n}\n\nlet dbPromise: Promise> | null = null;\nfunction getDbPromise(): Promise> {\n if (!dbPromise) {\n dbPromise = openDB(DATABASE_NAME, DATABASE_VERSION, {\n upgrade: (db, oldVersion) => {\n // We don't use 'break' in this switch statement, the fall-through\n // behavior is what we want, because if there are multiple versions between\n // the old version and the current version, we want ALL the migrations\n // that correspond to those versions to run, not only the last one.\n // eslint-disable-next-line default-case\n switch (oldVersion) {\n case 0:\n db.createObjectStore(OBJECT_STORE_NAME);\n }\n }\n });\n }\n return dbPromise;\n}\n\n/** Gets record(s) from the objectStore that match the given key. */\nexport async function get(\n appConfig: AppConfig\n): Promise {\n const key = getKey(appConfig);\n const db = await getDbPromise();\n return db\n .transaction(OBJECT_STORE_NAME)\n .objectStore(OBJECT_STORE_NAME)\n .get(key) as Promise;\n}\n\n/** Assigns or overwrites the record for the given key with the given value. */\nexport async function set(\n appConfig: AppConfig,\n value: ValueType\n): Promise {\n const key = getKey(appConfig);\n const db = await getDbPromise();\n const tx = db.transaction(OBJECT_STORE_NAME, 'readwrite');\n const objectStore = tx.objectStore(OBJECT_STORE_NAME);\n const oldValue = (await objectStore.get(key)) as InstallationEntry;\n await objectStore.put(value, key);\n await tx.done;\n\n if (!oldValue || oldValue.fid !== value.fid) {\n fidChanged(appConfig, value.fid);\n }\n\n return value;\n}\n\n/** Removes record(s) from the objectStore that match the given key. */\nexport async function remove(appConfig: AppConfig): Promise {\n const key = getKey(appConfig);\n const db = await getDbPromise();\n const tx = db.transaction(OBJECT_STORE_NAME, 'readwrite');\n await tx.objectStore(OBJECT_STORE_NAME).delete(key);\n await tx.done;\n}\n\n/**\n * Atomically updates a record with the result of updateFn, which gets\n * called with the current value. If newValue is undefined, the record is\n * deleted instead.\n * @return Updated value\n */\nexport async function update(\n appConfig: AppConfig,\n updateFn: (previousValue: InstallationEntry | undefined) => ValueType\n): Promise {\n const key = getKey(appConfig);\n const db = await getDbPromise();\n const tx = db.transaction(OBJECT_STORE_NAME, 'readwrite');\n const store = tx.objectStore(OBJECT_STORE_NAME);\n const oldValue: InstallationEntry | undefined = (await store.get(\n key\n )) as InstallationEntry;\n const newValue = updateFn(oldValue);\n\n if (newValue === undefined) {\n await store.delete(key);\n } else {\n await store.put(newValue, key);\n }\n await tx.done;\n\n if (newValue && (!oldValue || oldValue.fid !== newValue.fid)) {\n fidChanged(appConfig, newValue.fid);\n }\n\n return newValue;\n}\n\nexport async function clear(): Promise {\n const db = await getDbPromise();\n const tx = db.transaction(OBJECT_STORE_NAME, 'readwrite');\n await tx.objectStore(OBJECT_STORE_NAME).clear();\n await tx.done;\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { createInstallationRequest } from '../functions/create-installation-request';\nimport {\n AppConfig,\n FirebaseInstallationsImpl\n} from '../interfaces/installation-impl';\nimport {\n InProgressInstallationEntry,\n InstallationEntry,\n RegisteredInstallationEntry,\n RequestStatus\n} from '../interfaces/installation-entry';\nimport { PENDING_TIMEOUT_MS } from '../util/constants';\nimport { ERROR_FACTORY, ErrorCode, isServerError } from '../util/errors';\nimport { sleep } from '../util/sleep';\nimport { generateFid, INVALID_FID } from './generate-fid';\nimport { remove, set, update } from './idb-manager';\n\nexport interface InstallationEntryWithRegistrationPromise {\n installationEntry: InstallationEntry;\n /** Exist iff the installationEntry is not registered. */\n registrationPromise?: Promise;\n}\n\n/**\n * Updates and returns the InstallationEntry from the database.\n * Also triggers a registration request if it is necessary and possible.\n */\nexport async function getInstallationEntry(\n installations: FirebaseInstallationsImpl\n): Promise {\n let registrationPromise: Promise | undefined;\n\n const installationEntry = await update(installations.appConfig, oldEntry => {\n const installationEntry = updateOrCreateInstallationEntry(oldEntry);\n const entryWithPromise = triggerRegistrationIfNecessary(\n installations,\n installationEntry\n );\n registrationPromise = entryWithPromise.registrationPromise;\n return entryWithPromise.installationEntry;\n });\n\n if (installationEntry.fid === INVALID_FID) {\n // FID generation failed. Waiting for the FID from the server.\n return { installationEntry: await registrationPromise! };\n }\n\n return {\n installationEntry,\n registrationPromise\n };\n}\n\n/**\n * Creates a new Installation Entry if one does not exist.\n * Also clears timed out pending requests.\n */\nfunction updateOrCreateInstallationEntry(\n oldEntry: InstallationEntry | undefined\n): InstallationEntry {\n const entry: InstallationEntry = oldEntry || {\n fid: generateFid(),\n registrationStatus: RequestStatus.NOT_STARTED\n };\n\n return clearTimedOutRequest(entry);\n}\n\n/**\n * If the Firebase Installation is not registered yet, this will trigger the\n * registration and return an InProgressInstallationEntry.\n *\n * If registrationPromise does not exist, the installationEntry is guaranteed\n * to be registered.\n */\nfunction triggerRegistrationIfNecessary(\n installations: FirebaseInstallationsImpl,\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 installations,\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(installations)\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 installations: FirebaseInstallationsImpl,\n installationEntry: InProgressInstallationEntry\n): Promise {\n try {\n const registeredInstallationEntry = await createInstallationRequest(\n installations,\n installationEntry\n );\n return set(installations.appConfig, registeredInstallationEntry);\n } catch (e) {\n if (isServerError(e) && e.customData.serverCode === 409) {\n // Server returned a \"FID can not be used\" error.\n // Generate a new ID next time.\n await remove(installations.appConfig);\n } else {\n // Registration failed. Set FID as not registered.\n await set(installations.appConfig, {\n fid: installationEntry.fid,\n registrationStatus: RequestStatus.NOT_STARTED\n });\n }\n throw e;\n }\n}\n\n/** Call if FID registration is pending in another request. */\nasync function waitUntilFidRegistration(\n installations: FirebaseInstallationsImpl\n): Promise {\n // Unfortunately, there is no way of reliably observing when a value in\n // IndexedDB changes (yet, see https://github.com/WICG/indexed-db-observers),\n // so we need to poll.\n\n let entry: InstallationEntry = await updateInstallationRequest(\n installations.appConfig\n );\n while (entry.registrationStatus === RequestStatus.IN_PROGRESS) {\n // createInstallation request still in progress.\n await sleep(100);\n\n entry = await updateInstallationRequest(installations.appConfig);\n }\n\n if (entry.registrationStatus === RequestStatus.NOT_STARTED) {\n // The request timed out or failed in a different call. Try again.\n const { installationEntry, registrationPromise } =\n await getInstallationEntry(installations);\n\n if (registrationPromise) {\n return registrationPromise;\n } else {\n // if there is no registrationPromise, entry is registered.\n return installationEntry as RegisteredInstallationEntry;\n }\n }\n\n return entry;\n}\n\n/**\n * Called only if there is a CreateInstallation request in progress.\n *\n * Updates the InstallationEntry in the DB based on the status of the\n * CreateInstallation request.\n *\n * Returns the updated InstallationEntry.\n */\nfunction updateInstallationRequest(\n appConfig: AppConfig\n): Promise {\n return update(appConfig, oldEntry => {\n if (!oldEntry) {\n throw ERROR_FACTORY.create(ErrorCode.INSTALLATION_NOT_FOUND);\n }\n return clearTimedOutRequest(oldEntry);\n });\n}\n\nfunction clearTimedOutRequest(entry: InstallationEntry): InstallationEntry {\n if (hasInstallationRequestTimedOut(entry)) {\n return {\n fid: entry.fid,\n registrationStatus: RequestStatus.NOT_STARTED\n };\n }\n\n return entry;\n}\n\nfunction hasInstallationRequestTimedOut(\n installationEntry: InstallationEntry\n): boolean {\n return (\n installationEntry.registrationStatus === RequestStatus.IN_PROGRESS &&\n installationEntry.registrationTime + PENDING_TIMEOUT_MS < Date.now()\n );\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { CreateInstallationResponse } from '../interfaces/api-response';\nimport {\n InProgressInstallationEntry,\n RegisteredInstallationEntry,\n RequestStatus\n} from '../interfaces/installation-entry';\nimport { INTERNAL_AUTH_VERSION, PACKAGE_VERSION } from '../util/constants';\nimport {\n extractAuthTokenInfoFromResponse,\n getErrorFromResponse,\n getHeaders,\n getInstallationsEndpoint,\n retryIfServerError\n} from './common';\nimport { FirebaseInstallationsImpl } from '../interfaces/installation-impl';\n\nexport async function createInstallationRequest(\n { appConfig, heartbeatServiceProvider }: FirebaseInstallationsImpl,\n { fid }: InProgressInstallationEntry\n): Promise {\n const endpoint = getInstallationsEndpoint(appConfig);\n\n const headers = getHeaders(appConfig);\n\n // If heartbeat service exists, add the heartbeat string to the header.\n const heartbeatService = heartbeatServiceProvider.getImmediate({\n optional: true\n });\n if (heartbeatService) {\n const heartbeatsHeader = await heartbeatService.getHeartbeatsHeader();\n if (heartbeatsHeader) {\n headers.append('x-firebase-client', heartbeatsHeader);\n }\n }\n\n const body = {\n fid,\n authVersion: INTERNAL_AUTH_VERSION,\n appId: appConfig.appId,\n sdkVersion: PACKAGE_VERSION\n };\n\n const request: RequestInit = {\n method: 'POST',\n headers,\n body: JSON.stringify(body)\n };\n\n const response = await retryIfServerError(() => fetch(endpoint, request));\n if (response.ok) {\n const responseValue: CreateInstallationResponse = await response.json();\n const registeredInstallationEntry: RegisteredInstallationEntry = {\n fid: responseValue.fid || fid,\n registrationStatus: RequestStatus.COMPLETED,\n refreshToken: responseValue.refreshToken,\n authToken: extractAuthTokenInfoFromResponse(responseValue.authToken)\n };\n return registeredInstallationEntry;\n } else {\n throw await getErrorFromResponse('Create Installation', response);\n }\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { GenerateAuthTokenResponse } from '../interfaces/api-response';\nimport {\n CompletedAuthToken,\n RegisteredInstallationEntry\n} from '../interfaces/installation-entry';\nimport { PACKAGE_VERSION } from '../util/constants';\nimport {\n extractAuthTokenInfoFromResponse,\n getErrorFromResponse,\n getHeadersWithAuth,\n getInstallationsEndpoint,\n retryIfServerError\n} from './common';\nimport {\n FirebaseInstallationsImpl,\n AppConfig\n} from '../interfaces/installation-impl';\n\nexport async function generateAuthTokenRequest(\n { appConfig, heartbeatServiceProvider }: FirebaseInstallationsImpl,\n installationEntry: RegisteredInstallationEntry\n): Promise {\n const endpoint = getGenerateAuthTokenEndpoint(appConfig, installationEntry);\n\n const headers = getHeadersWithAuth(appConfig, installationEntry);\n\n // If heartbeat service exists, add the heartbeat string to the header.\n const heartbeatService = heartbeatServiceProvider.getImmediate({\n optional: true\n });\n if (heartbeatService) {\n const heartbeatsHeader = await heartbeatService.getHeartbeatsHeader();\n if (heartbeatsHeader) {\n headers.append('x-firebase-client', heartbeatsHeader);\n }\n }\n\n const body = {\n installation: {\n sdkVersion: PACKAGE_VERSION,\n appId: appConfig.appId\n }\n };\n\n const request: RequestInit = {\n method: 'POST',\n headers,\n body: JSON.stringify(body)\n };\n\n const response = await retryIfServerError(() => fetch(endpoint, request));\n if (response.ok) {\n const responseValue: GenerateAuthTokenResponse = await response.json();\n const completedAuthToken: CompletedAuthToken =\n extractAuthTokenInfoFromResponse(responseValue);\n return completedAuthToken;\n } else {\n throw await getErrorFromResponse('Generate Auth Token', response);\n }\n}\n\nfunction getGenerateAuthTokenEndpoint(\n appConfig: AppConfig,\n { fid }: RegisteredInstallationEntry\n): string {\n return `${getInstallationsEndpoint(appConfig)}/${fid}/authTokens:generate`;\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { generateAuthTokenRequest } from '../functions/generate-auth-token-request';\nimport {\n AppConfig,\n FirebaseInstallationsImpl\n} from '../interfaces/installation-impl';\nimport {\n AuthToken,\n CompletedAuthToken,\n InProgressAuthToken,\n InstallationEntry,\n RegisteredInstallationEntry,\n RequestStatus\n} from '../interfaces/installation-entry';\nimport { PENDING_TIMEOUT_MS, TOKEN_EXPIRATION_BUFFER } from '../util/constants';\nimport { ERROR_FACTORY, ErrorCode, isServerError } from '../util/errors';\nimport { sleep } from '../util/sleep';\nimport { remove, set, update } from './idb-manager';\n\n/**\n * Returns a valid authentication token for the installation. Generates a new\n * token if one doesn't exist, is expired or about to expire.\n *\n * Should only be called if the Firebase Installation is registered.\n */\nexport async function refreshAuthToken(\n installations: FirebaseInstallationsImpl,\n forceRefresh = false\n): Promise {\n let tokenPromise: Promise | undefined;\n const entry = await update(installations.appConfig, oldEntry => {\n if (!isEntryRegistered(oldEntry)) {\n throw ERROR_FACTORY.create(ErrorCode.NOT_REGISTERED);\n }\n\n const oldAuthToken = oldEntry.authToken;\n if (!forceRefresh && isAuthTokenValid(oldAuthToken)) {\n // There is a valid token in the DB.\n return oldEntry;\n } else if (oldAuthToken.requestStatus === RequestStatus.IN_PROGRESS) {\n // There already is a token request in progress.\n tokenPromise = waitUntilAuthTokenRequest(installations, forceRefresh);\n return oldEntry;\n } else {\n // No token or token expired.\n if (!navigator.onLine) {\n throw ERROR_FACTORY.create(ErrorCode.APP_OFFLINE);\n }\n\n const inProgressEntry = makeAuthTokenRequestInProgressEntry(oldEntry);\n tokenPromise = fetchAuthTokenFromServer(installations, inProgressEntry);\n return inProgressEntry;\n }\n });\n\n const authToken = tokenPromise\n ? await tokenPromise\n : (entry.authToken as CompletedAuthToken);\n return authToken;\n}\n\n/**\n * Call only if FID is registered and Auth Token request is in progress.\n *\n * Waits until the current pending request finishes. If the request times out,\n * tries once in this thread as well.\n */\nasync function waitUntilAuthTokenRequest(\n installations: FirebaseInstallationsImpl,\n forceRefresh: boolean\n): Promise {\n // Unfortunately, there is no way of reliably observing when a value in\n // IndexedDB changes (yet, see https://github.com/WICG/indexed-db-observers),\n // so we need to poll.\n\n let entry = await updateAuthTokenRequest(installations.appConfig);\n while (entry.authToken.requestStatus === RequestStatus.IN_PROGRESS) {\n // generateAuthToken still in progress.\n await sleep(100);\n\n entry = await updateAuthTokenRequest(installations.appConfig);\n }\n\n const authToken = entry.authToken;\n if (authToken.requestStatus === RequestStatus.NOT_STARTED) {\n // The request timed out or failed in a different call. Try again.\n return refreshAuthToken(installations, forceRefresh);\n } else {\n return authToken;\n }\n}\n\n/**\n * Called only if there is a GenerateAuthToken request in progress.\n *\n * Updates the InstallationEntry in the DB based on the status of the\n * GenerateAuthToken request.\n *\n * Returns the updated InstallationEntry.\n */\nfunction updateAuthTokenRequest(\n appConfig: AppConfig\n): Promise {\n return update(appConfig, oldEntry => {\n if (!isEntryRegistered(oldEntry)) {\n throw ERROR_FACTORY.create(ErrorCode.NOT_REGISTERED);\n }\n\n const oldAuthToken = oldEntry.authToken;\n if (hasAuthTokenRequestTimedOut(oldAuthToken)) {\n return {\n ...oldEntry,\n authToken: { requestStatus: RequestStatus.NOT_STARTED }\n };\n }\n\n return oldEntry;\n });\n}\n\nasync function fetchAuthTokenFromServer(\n installations: FirebaseInstallationsImpl,\n installationEntry: RegisteredInstallationEntry\n): Promise {\n try {\n const authToken = await generateAuthTokenRequest(\n installations,\n installationEntry\n );\n const updatedInstallationEntry: RegisteredInstallationEntry = {\n ...installationEntry,\n authToken\n };\n await set(installations.appConfig, updatedInstallationEntry);\n return authToken;\n } catch (e) {\n if (\n isServerError(e) &&\n (e.customData.serverCode === 401 || e.customData.serverCode === 404)\n ) {\n // Server returned a \"FID not found\" or a \"Invalid authentication\" error.\n // Generate a new ID next time.\n await remove(installations.appConfig);\n } else {\n const updatedInstallationEntry: RegisteredInstallationEntry = {\n ...installationEntry,\n authToken: { requestStatus: RequestStatus.NOT_STARTED }\n };\n await set(installations.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 LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { getInstallationEntry } from '../helpers/get-installation-entry';\nimport { refreshAuthToken } from '../helpers/refresh-auth-token';\nimport { FirebaseInstallationsImpl } from '../interfaces/installation-impl';\nimport { Installations } from '../interfaces/public-types';\n\n/**\n * Returns a Firebase Installations auth token, identifying the current\n * Firebase Installation.\n * @param installations - The `Installations` instance.\n * @param forceRefresh - Force refresh regardless of token expiration.\n *\n * @public\n */\nexport async function getToken(\n installations: Installations,\n forceRefresh = false\n): Promise {\n const installationsImpl = installations as FirebaseInstallationsImpl;\n await completeInstallationRegistration(installationsImpl);\n\n // At this point we either have a Registered Installation in the DB, or we've\n // already thrown an error.\n const authToken = await refreshAuthToken(installationsImpl, forceRefresh);\n return authToken.token;\n}\n\nasync function completeInstallationRegistration(\n installations: FirebaseInstallationsImpl\n): Promise {\n const { registrationPromise } = await getInstallationEntry(installations);\n\n if (registrationPromise) {\n // A createInstallation request is in progress. Wait until it finishes.\n await registrationPromise;\n }\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { FirebaseApp, FirebaseOptions } from '@firebase/app';\nimport { FirebaseError } from '@firebase/util';\nimport { AppConfig } from '../interfaces/installation-impl';\nimport { ERROR_FACTORY, ErrorCode } from '../util/errors';\n\nexport function extractAppConfig(app: FirebaseApp): AppConfig {\n if (!app || !app.options) {\n throw getMissingValueError('App Configuration');\n }\n\n if (!app.name) {\n throw getMissingValueError('App Name');\n }\n\n // Required app config keys\n const configKeys: Array = [\n 'projectId',\n 'apiKey',\n 'appId'\n ];\n\n for (const keyName of configKeys) {\n if (!app.options[keyName]) {\n throw getMissingValueError(keyName);\n }\n }\n\n return {\n appName: app.name,\n projectId: app.options.projectId!,\n apiKey: app.options.apiKey!,\n appId: app.options.appId!\n };\n}\n\nfunction getMissingValueError(valueName: string): FirebaseError {\n return ERROR_FACTORY.create(ErrorCode.MISSING_APP_CONFIG_VALUES, {\n valueName\n });\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { _registerComponent, _getProvider } from '@firebase/app';\nimport {\n Component,\n ComponentType,\n InstanceFactory,\n ComponentContainer\n} from '@firebase/component';\nimport { getId, getToken } from '../api/index';\nimport { _FirebaseInstallationsInternal } from '../interfaces/public-types';\nimport { FirebaseInstallationsImpl } from '../interfaces/installation-impl';\nimport { extractAppConfig } from '../helpers/extract-app-config';\n\nconst INSTALLATIONS_NAME = 'installations';\nconst INSTALLATIONS_NAME_INTERNAL = 'installations-internal';\n\nconst publicFactory: InstanceFactory<'installations'> = (\n container: ComponentContainer\n) => {\n const app = container.getProvider('app').getImmediate();\n // Throws if app isn't configured properly.\n const appConfig = extractAppConfig(app);\n const heartbeatServiceProvider = _getProvider(app, 'heartbeat');\n\n const installationsImpl: FirebaseInstallationsImpl = {\n app,\n appConfig,\n heartbeatServiceProvider,\n _delete: () => Promise.resolve()\n };\n return installationsImpl;\n};\n\nconst internalFactory: InstanceFactory<'installations-internal'> = (\n container: ComponentContainer\n) => {\n const app = container.getProvider('app').getImmediate();\n // Internal FIS instance relies on public FIS instance.\n const installations = _getProvider(app, INSTALLATIONS_NAME).getImmediate();\n\n const installationsInternal: _FirebaseInstallationsInternal = {\n getId: () => getId(installations),\n getToken: (forceRefresh?: boolean) => getToken(installations, forceRefresh)\n };\n return installationsInternal;\n};\n\nexport function registerInstallations(): void {\n _registerComponent(\n new Component(INSTALLATIONS_NAME, publicFactory, ComponentType.PUBLIC)\n );\n _registerComponent(\n new Component(\n INSTALLATIONS_NAME_INTERNAL,\n internalFactory,\n ComponentType.PRIVATE\n )\n );\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { getInstallationEntry } from '../helpers/get-installation-entry';\nimport { refreshAuthToken } from '../helpers/refresh-auth-token';\nimport { FirebaseInstallationsImpl } from '../interfaces/installation-impl';\nimport { Installations } from '../interfaces/public-types';\n\n/**\n * Creates a Firebase Installation if there isn't one for the app and\n * returns the Installation ID.\n * @param installations - The `Installations` instance.\n *\n * @public\n */\nexport async function getId(installations: Installations): Promise {\n const installationsImpl = installations as FirebaseInstallationsImpl;\n const { installationEntry, registrationPromise } = await getInstallationEntry(\n installationsImpl\n );\n\n if (registrationPromise) {\n registrationPromise.catch(console.error);\n } else {\n // If the installation is already registered, update the authentication\n // token if needed.\n refreshAuthToken(installationsImpl).catch(console.error);\n }\n\n return installationEntry.fid;\n}\n","/**\n * The Firebase Installations Web SDK.\n * This SDK does not work in a Node.js environment.\n *\n * @packageDocumentation\n */\n\n/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { registerInstallations } from './functions/config';\nimport { registerVersion } from '@firebase/app';\nimport { name, version } from '../package.json';\n\nexport * from './api';\nexport * from './interfaces/public-types';\n\nregisterInstallations();\nregisterVersion(name, version);\n// BUILD_TARGET will be replaced by values like esm5, esm2017, cjs5, etc during the compilation\nregisterVersion(name, version, '__BUILD_TARGET__');\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * Type constant for Firebase Analytics.\n */\nexport const ANALYTICS_TYPE = 'analytics';\n\n// Key to attach FID to in gtag params.\nexport const GA_FID_KEY = 'firebase_id';\nexport const ORIGIN_KEY = 'origin';\n\nexport const FETCH_TIMEOUT_MILLIS = 60 * 1000;\n\nexport const DYNAMIC_CONFIG_URL =\n 'https://firebase.googleapis.com/v1alpha/projects/-/apps/{app-id}/webConfig';\n\nexport const GTAG_URL = 'https://www.googletagmanager.com/gtag/js';\n\nexport const enum GtagCommand {\n EVENT = 'event',\n SET = 'set',\n CONFIG = 'config',\n CONSENT = 'consent',\n GET = 'get'\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { Logger } from '@firebase/logger';\n\nexport const logger = new Logger('@firebase/analytics');\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport {\n CustomParams,\n ControlParams,\n EventParams,\n ConsentSettings\n} from './public-types';\nimport { DynamicConfig, DataLayer, Gtag, MinimalDynamicConfig } from './types';\nimport { GtagCommand, GTAG_URL } from './constants';\nimport { logger } from './logger';\nimport { trustedResourceUrl } from 'safevalues';\nimport { safeScriptEl } from 'safevalues/dom';\n\n// Possible parameter types for gtag 'event' and 'config' commands\ntype GtagConfigOrEventParams = ControlParams & EventParams & CustomParams;\n\n/**\n * Makeshift polyfill for Promise.allSettled(). Resolves when all promises\n * have either resolved or rejected.\n *\n * @param promises Array of promises to wait for.\n */\nexport function promiseAllSettled(\n promises: Array>\n): Promise {\n return Promise.all(promises.map(promise => promise.catch(e => e)));\n}\n\n/**\n * Inserts gtag script tag into the page to asynchronously download gtag.\n * @param dataLayerName Name of datalayer (most often the default, \"_dataLayer\").\n */\nexport function insertScriptTag(\n dataLayerName: string,\n measurementId: string\n): void {\n const script = document.createElement('script');\n\n // We are not providing an analyticsId in the URL because it would trigger a `page_view`\n // without fid. We will initialize ga-id using gtag (config) command together with fid.\n //\n // We also have to ensure the template string before the first expression constitutes a valid URL\n // start, as this is what the initial validation focuses on. If the template literal begins\n // directly with an expression (e.g. `${GTAG_SCRIPT_URL}`), the validation fails due to an\n // empty initial string.\n const url = trustedResourceUrl`https://www.googletagmanager.com/gtag/js?l=${dataLayerName}&id=${measurementId}`;\n safeScriptEl.setSrc(script, url);\n\n script.async = true;\n document.head.appendChild(script);\n}\n\n/**\n * Get reference to, or create, global datalayer.\n * @param dataLayerName Name of datalayer (most often the default, \"_dataLayer\").\n */\nexport function getOrCreateDataLayer(dataLayerName: string): DataLayer {\n // Check for existing dataLayer and create if needed.\n let dataLayer: DataLayer = [];\n if (Array.isArray(window[dataLayerName])) {\n dataLayer = window[dataLayerName] as DataLayer;\n } else {\n window[dataLayerName] = dataLayer;\n }\n return dataLayer;\n}\n\n/**\n * Wrapped gtag logic when gtag is called with 'config' command.\n *\n * @param gtagCore Basic gtag function that just appends to dataLayer.\n * @param initializationPromisesMap Map of appIds to their initialization promises.\n * @param dynamicConfigPromisesList Array of dynamic config fetch promises.\n * @param measurementIdToAppId Map of GA measurementIDs to corresponding Firebase appId.\n * @param measurementId GA Measurement ID to set config for.\n * @param gtagParams Gtag config params to set.\n */\nasync function gtagOnConfig(\n gtagCore: Gtag,\n initializationPromisesMap: { [appId: string]: Promise },\n dynamicConfigPromisesList: Array<\n Promise\n >,\n measurementIdToAppId: { [measurementId: string]: string },\n measurementId: string,\n gtagParams?: ControlParams & EventParams & CustomParams\n): Promise {\n // If config is already fetched, we know the appId and can use it to look up what FID promise we\n /// are waiting for, and wait only on that one.\n const correspondingAppId = measurementIdToAppId[measurementId as string];\n try {\n if (correspondingAppId) {\n await initializationPromisesMap[correspondingAppId];\n } else {\n // If config is not fetched yet, wait for all configs (we don't know which one we need) and\n // find the appId (if any) corresponding to this measurementId. If there is one, wait on\n // that appId's initialization promise. If there is none, promise resolves and gtag\n // call goes through.\n const dynamicConfigResults = await promiseAllSettled(\n dynamicConfigPromisesList\n );\n const foundConfig = dynamicConfigResults.find(\n config => config.measurementId === measurementId\n );\n if (foundConfig) {\n await initializationPromisesMap[foundConfig.appId];\n }\n }\n } catch (e) {\n logger.error(e);\n }\n gtagCore(GtagCommand.CONFIG, measurementId, gtagParams);\n}\n\n/**\n * Wrapped gtag logic when gtag is called with 'event' command.\n *\n * @param gtagCore Basic gtag function that just appends to dataLayer.\n * @param initializationPromisesMap Map of appIds to their initialization promises.\n * @param dynamicConfigPromisesList Array of dynamic config fetch promises.\n * @param measurementId GA Measurement ID to log event to.\n * @param gtagParams Params to log with this event.\n */\nasync function gtagOnEvent(\n gtagCore: Gtag,\n initializationPromisesMap: { [appId: string]: Promise },\n dynamicConfigPromisesList: Array<\n Promise\n >,\n measurementId: string,\n gtagParams?: ControlParams & EventParams & CustomParams\n): Promise {\n try {\n let initializationPromisesToWaitFor: Array> = [];\n\n // If there's a 'send_to' param, check if any ID specified matches\n // an initializeIds() promise we are waiting for.\n if (gtagParams && gtagParams['send_to']) {\n let gaSendToList: string | string[] = gtagParams['send_to'];\n // Make it an array if is isn't, so it can be dealt with the same way.\n if (!Array.isArray(gaSendToList)) {\n gaSendToList = [gaSendToList];\n }\n // Checking 'send_to' fields requires having all measurement ID results back from\n // the dynamic config fetch.\n const dynamicConfigResults = await promiseAllSettled(\n dynamicConfigPromisesList\n );\n for (const sendToId of gaSendToList) {\n // Any fetched dynamic measurement ID that matches this 'send_to' ID\n const foundConfig = dynamicConfigResults.find(\n config => config.measurementId === sendToId\n );\n const initializationPromise =\n foundConfig && initializationPromisesMap[foundConfig.appId];\n if (initializationPromise) {\n initializationPromisesToWaitFor.push(initializationPromise);\n } else {\n // Found an item in 'send_to' that is not associated\n // directly with an FID, possibly a group. Empty this array,\n // exit the loop early, and let it get populated below.\n initializationPromisesToWaitFor = [];\n break;\n }\n }\n }\n\n // This will be unpopulated if there was no 'send_to' field , or\n // if not all entries in the 'send_to' field could be mapped to\n // a FID. In these cases, wait on all pending initialization promises.\n if (initializationPromisesToWaitFor.length === 0) {\n initializationPromisesToWaitFor = Object.values(\n initializationPromisesMap\n );\n }\n\n // Run core gtag function with args after all relevant initialization\n // promises have been resolved.\n await Promise.all(initializationPromisesToWaitFor);\n // Workaround for http://b/141370449 - third argument cannot be undefined.\n gtagCore(GtagCommand.EVENT, measurementId, gtagParams || {});\n } catch (e) {\n logger.error(e);\n }\n}\n\n/**\n * Wraps a standard gtag function with extra code to wait for completion of\n * relevant initialization promises before sending requests.\n *\n * @param gtagCore Basic gtag function that just appends to dataLayer.\n * @param initializationPromisesMap Map of appIds to their initialization promises.\n * @param dynamicConfigPromisesList Array of dynamic config fetch promises.\n * @param measurementIdToAppId Map of GA measurementIDs to corresponding Firebase appId.\n */\nfunction wrapGtag(\n gtagCore: Gtag,\n /**\n * Allows wrapped gtag calls to wait on whichever intialization promises are required,\n * depending on the contents of the gtag params' `send_to` field, if any.\n */\n initializationPromisesMap: { [appId: string]: Promise },\n /**\n * Wrapped gtag calls sometimes require all dynamic config fetches to have returned\n * before determining what initialization promises (which include FIDs) to wait for.\n */\n dynamicConfigPromisesList: Array<\n Promise\n >,\n /**\n * Wrapped gtag config calls can narrow down which initialization promise (with FID)\n * to wait for if the measurementId is already fetched, by getting the corresponding appId,\n * which is the key for the initialization promises map.\n */\n measurementIdToAppId: { [measurementId: string]: string }\n): Gtag {\n /**\n * Wrapper around gtag that ensures FID is sent with gtag calls.\n * @param command Gtag command type.\n * @param idOrNameOrParams Measurement ID if command is EVENT/CONFIG, params if command is SET.\n * @param gtagParams Params if event is EVENT/CONFIG.\n */\n async function gtagWrapper(\n command: 'config' | 'set' | 'event' | 'consent' | 'get' | string,\n ...args: unknown[]\n ): Promise {\n try {\n // If event, check that relevant initialization promises have completed.\n if (command === GtagCommand.EVENT) {\n const [measurementId, gtagParams] = args;\n // If EVENT, second arg must be measurementId.\n await gtagOnEvent(\n gtagCore,\n initializationPromisesMap,\n dynamicConfigPromisesList,\n measurementId as string,\n gtagParams as GtagConfigOrEventParams\n );\n } else if (command === GtagCommand.CONFIG) {\n const [measurementId, gtagParams] = args;\n // If CONFIG, second arg must be measurementId.\n await gtagOnConfig(\n gtagCore,\n initializationPromisesMap,\n dynamicConfigPromisesList,\n measurementIdToAppId,\n measurementId as string,\n gtagParams as GtagConfigOrEventParams\n );\n } else if (command === GtagCommand.CONSENT) {\n const [consentAction, gtagParams] = args;\n // consentAction can be one of 'default' or 'update'.\n gtagCore(\n GtagCommand.CONSENT,\n consentAction,\n gtagParams as ConsentSettings\n );\n } else if (command === GtagCommand.GET) {\n const [measurementId, fieldName, callback] = args;\n gtagCore(\n GtagCommand.GET,\n measurementId as string,\n fieldName as string,\n callback as (...args: unknown[]) => void\n );\n } else if (command === GtagCommand.SET) {\n const [customParams] = args;\n // If SET, second arg must be params.\n gtagCore(GtagCommand.SET, customParams as CustomParams);\n } else {\n gtagCore(command, ...args);\n }\n } catch (e) {\n logger.error(e);\n }\n }\n return gtagWrapper as Gtag;\n}\n\n/**\n * Creates global gtag function or wraps existing one if found.\n * This wrapped function attaches Firebase instance ID (FID) to gtag 'config' and\n * 'event' calls that belong to the GAID associated with this Firebase instance.\n *\n * @param initializationPromisesMap Map of appIds to their initialization promises.\n * @param dynamicConfigPromisesList Array of dynamic config fetch promises.\n * @param measurementIdToAppId Map of GA measurementIDs to corresponding Firebase appId.\n * @param dataLayerName Name of global GA datalayer array.\n * @param gtagFunctionName Name of global gtag function (\"gtag\" if not user-specified).\n */\nexport function wrapOrCreateGtag(\n initializationPromisesMap: { [appId: string]: Promise },\n dynamicConfigPromisesList: Array<\n Promise\n >,\n measurementIdToAppId: { [measurementId: string]: string },\n dataLayerName: string,\n gtagFunctionName: string\n): {\n gtagCore: Gtag;\n wrappedGtag: Gtag;\n} {\n // Create a basic core gtag function\n let gtagCore: Gtag = function (..._args: unknown[]) {\n // Must push IArguments object, not an array.\n (window[dataLayerName] as DataLayer).push(arguments);\n };\n\n // Replace it with existing one if found\n if (\n window[gtagFunctionName] &&\n typeof window[gtagFunctionName] === 'function'\n ) {\n // @ts-ignore\n gtagCore = window[gtagFunctionName];\n }\n\n window[gtagFunctionName] = wrapGtag(\n gtagCore,\n initializationPromisesMap,\n dynamicConfigPromisesList,\n measurementIdToAppId\n );\n\n return {\n gtagCore,\n wrappedGtag: window[gtagFunctionName] as Gtag\n };\n}\n\n/**\n * Returns the script tag in the DOM matching both the gtag url pattern\n * and the provided data layer name.\n */\nexport function findGtagScriptOnPage(\n dataLayerName: string\n): HTMLScriptElement | null {\n const scriptTags = window.document.getElementsByTagName('script');\n for (const tag of Object.values(scriptTags)) {\n if (\n tag.src &&\n tag.src.includes(GTAG_URL) &&\n tag.src.includes(dataLayerName)\n ) {\n return tag;\n }\n }\n return null;\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { ErrorFactory, ErrorMap } from '@firebase/util';\n\nexport const enum AnalyticsError {\n ALREADY_EXISTS = 'already-exists',\n ALREADY_INITIALIZED = 'already-initialized',\n ALREADY_INITIALIZED_SETTINGS = 'already-initialized-settings',\n INTEROP_COMPONENT_REG_FAILED = 'interop-component-reg-failed',\n INVALID_ANALYTICS_CONTEXT = 'invalid-analytics-context',\n INDEXEDDB_UNAVAILABLE = 'indexeddb-unavailable',\n FETCH_THROTTLE = 'fetch-throttle',\n CONFIG_FETCH_FAILED = 'config-fetch-failed',\n NO_API_KEY = 'no-api-key',\n NO_APP_ID = 'no-app-id',\n NO_CLIENT_ID = 'no-client-id',\n INVALID_GTAG_RESOURCE = 'invalid-gtag-resource'\n}\n\nconst ERRORS: ErrorMap = {\n [AnalyticsError.ALREADY_EXISTS]:\n 'A Firebase Analytics instance with the appId {$id} ' +\n ' already exists. ' +\n 'Only one Firebase Analytics instance can be created for each appId.',\n [AnalyticsError.ALREADY_INITIALIZED]:\n 'initializeAnalytics() cannot be called again with different options than those ' +\n 'it was initially called with. It can be called again with the same options to ' +\n 'return the existing instance, or getAnalytics() can be used ' +\n 'to get a reference to the already-intialized instance.',\n [AnalyticsError.ALREADY_INITIALIZED_SETTINGS]:\n 'Firebase Analytics has already been initialized.' +\n 'settings() must be called before initializing any Analytics instance' +\n 'or it will have no effect.',\n [AnalyticsError.INTEROP_COMPONENT_REG_FAILED]:\n 'Firebase Analytics Interop Component failed to instantiate: {$reason}',\n [AnalyticsError.INVALID_ANALYTICS_CONTEXT]:\n 'Firebase Analytics is not supported in this environment. ' +\n 'Wrap initialization of analytics in analytics.isSupported() ' +\n 'to prevent initialization in unsupported environments. Details: {$errorInfo}',\n [AnalyticsError.INDEXEDDB_UNAVAILABLE]:\n 'IndexedDB unavailable or restricted in this environment. ' +\n 'Wrap initialization of analytics in analytics.isSupported() ' +\n 'to prevent initialization in unsupported environments. Details: {$errorInfo}',\n [AnalyticsError.FETCH_THROTTLE]:\n 'The config fetch request timed out while in an exponential backoff state.' +\n ' Unix timestamp in milliseconds when fetch request throttling ends: {$throttleEndTimeMillis}.',\n [AnalyticsError.CONFIG_FETCH_FAILED]:\n 'Dynamic config fetch failed: [{$httpStatus}] {$responseMessage}',\n [AnalyticsError.NO_API_KEY]:\n 'The \"apiKey\" field is empty in the local Firebase config. Firebase Analytics requires this field to' +\n 'contain a valid API key.',\n [AnalyticsError.NO_APP_ID]:\n 'The \"appId\" field is empty in the local Firebase config. Firebase Analytics requires this field to' +\n 'contain a valid app ID.',\n [AnalyticsError.NO_CLIENT_ID]: 'The \"client_id\" field is empty.',\n [AnalyticsError.INVALID_GTAG_RESOURCE]:\n 'Trusted Types detected an invalid gtag resource: {$gtagURL}.'\n};\n\ninterface ErrorParams {\n [AnalyticsError.ALREADY_EXISTS]: { id: string };\n [AnalyticsError.INTEROP_COMPONENT_REG_FAILED]: { reason: Error };\n [AnalyticsError.FETCH_THROTTLE]: { throttleEndTimeMillis: number };\n [AnalyticsError.CONFIG_FETCH_FAILED]: {\n httpStatus: number;\n responseMessage: string;\n };\n [AnalyticsError.INVALID_ANALYTICS_CONTEXT]: { errorInfo: string };\n [AnalyticsError.INDEXEDDB_UNAVAILABLE]: { errorInfo: string };\n [AnalyticsError.INVALID_GTAG_RESOURCE]: { gtagURL: string };\n}\n\nexport const ERROR_FACTORY = new ErrorFactory(\n 'analytics',\n 'Analytics',\n ERRORS\n);\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @fileoverview Most logic is copied from packages/remote-config/src/client/retrying_client.ts\n */\n\nimport { FirebaseApp } from '@firebase/app';\nimport { DynamicConfig, ThrottleMetadata, MinimalDynamicConfig } from './types';\nimport { FirebaseError, calculateBackoffMillis } from '@firebase/util';\nimport { AnalyticsError, ERROR_FACTORY } from './errors';\nimport { DYNAMIC_CONFIG_URL, FETCH_TIMEOUT_MILLIS } from './constants';\nimport { logger } from './logger';\n\n// App config fields needed by analytics.\nexport interface AppFields {\n appId: string;\n apiKey: string;\n measurementId?: string;\n}\n\n/**\n * Backoff factor for 503 errors, which we want to be conservative about\n * to avoid overloading servers. Each retry interval will be\n * BASE_INTERVAL_MILLIS * LONG_RETRY_FACTOR ^ retryCount, so the second one\n * will be ~30 seconds (with fuzzing).\n */\nexport const LONG_RETRY_FACTOR = 30;\n\n/**\n * Base wait interval to multiplied by backoffFactor^backoffCount.\n */\nconst BASE_INTERVAL_MILLIS = 1000;\n\n/**\n * Stubbable retry data storage class.\n */\nclass RetryData {\n constructor(\n public throttleMetadata: { [appId: string]: ThrottleMetadata } = {},\n public intervalMillis: number = BASE_INTERVAL_MILLIS\n ) {}\n\n getThrottleMetadata(appId: string): ThrottleMetadata {\n return this.throttleMetadata[appId];\n }\n\n setThrottleMetadata(appId: string, metadata: ThrottleMetadata): void {\n this.throttleMetadata[appId] = metadata;\n }\n\n deleteThrottleMetadata(appId: string): void {\n delete this.throttleMetadata[appId];\n }\n}\n\nconst defaultRetryData = new RetryData();\n\n/**\n * Set GET request headers.\n * @param apiKey App API key.\n */\nfunction getHeaders(apiKey: string): Headers {\n return new Headers({\n Accept: 'application/json',\n 'x-goog-api-key': apiKey\n });\n}\n\n/**\n * Fetches dynamic config from backend.\n * @param app Firebase app to fetch config for.\n */\nexport async function fetchDynamicConfig(\n appFields: AppFields\n): Promise {\n const { appId, apiKey } = appFields;\n const request: RequestInit = {\n method: 'GET',\n headers: getHeaders(apiKey)\n };\n const appUrl = DYNAMIC_CONFIG_URL.replace('{app-id}', appId);\n const response = await fetch(appUrl, request);\n if (response.status !== 200 && response.status !== 304) {\n let errorMessage = '';\n try {\n // Try to get any error message text from server response.\n const jsonResponse = (await response.json()) as {\n error?: { message?: string };\n };\n if (jsonResponse.error?.message) {\n errorMessage = jsonResponse.error.message;\n }\n } catch (_ignored) {}\n throw ERROR_FACTORY.create(AnalyticsError.CONFIG_FETCH_FAILED, {\n httpStatus: response.status,\n responseMessage: errorMessage\n });\n }\n return response.json();\n}\n\n/**\n * Fetches dynamic config from backend, retrying if failed.\n * @param app Firebase app to fetch config for.\n */\nexport async function fetchDynamicConfigWithRetry(\n app: FirebaseApp,\n // retryData and timeoutMillis are parameterized to allow passing a different value for testing.\n retryData: RetryData = defaultRetryData,\n timeoutMillis?: number\n): Promise {\n const { appId, apiKey, measurementId } = app.options;\n\n if (!appId) {\n throw ERROR_FACTORY.create(AnalyticsError.NO_APP_ID);\n }\n\n if (!apiKey) {\n if (measurementId) {\n return {\n measurementId,\n appId\n };\n }\n throw ERROR_FACTORY.create(AnalyticsError.NO_API_KEY);\n }\n\n const throttleMetadata: ThrottleMetadata = retryData.getThrottleMetadata(\n appId\n ) || {\n backoffCount: 0,\n throttleEndTimeMillis: Date.now()\n };\n\n const signal = new AnalyticsAbortSignal();\n\n setTimeout(\n async () => {\n // Note a very low delay, eg < 10ms, can elapse before listeners are initialized.\n signal.abort();\n },\n timeoutMillis !== undefined ? timeoutMillis : FETCH_TIMEOUT_MILLIS\n );\n\n return attemptFetchDynamicConfigWithRetry(\n { appId, apiKey, measurementId },\n throttleMetadata,\n signal,\n retryData\n );\n}\n\n/**\n * Runs one retry attempt.\n * @param appFields Necessary app config fields.\n * @param throttleMetadata Ongoing metadata to determine throttling times.\n * @param signal Abort signal.\n */\nasync function attemptFetchDynamicConfigWithRetry(\n appFields: AppFields,\n { throttleEndTimeMillis, backoffCount }: ThrottleMetadata,\n signal: AnalyticsAbortSignal,\n retryData: RetryData = defaultRetryData // for testing\n): Promise {\n const { appId, measurementId } = appFields;\n // Starts with a (potentially zero) timeout to support resumption from stored state.\n // Ensures the throttle end time is honored if the last attempt timed out.\n // Note the SDK will never make a request if the fetch timeout expires at this point.\n try {\n await setAbortableTimeout(signal, throttleEndTimeMillis);\n } catch (e) {\n if (measurementId) {\n logger.warn(\n `Timed out fetching this Firebase app's measurement ID from the server.` +\n ` Falling back to the measurement ID ${measurementId}` +\n ` provided in the \"measurementId\" field in the local Firebase config. [${\n (e as Error)?.message\n }]`\n );\n return { appId, measurementId };\n }\n throw e;\n }\n\n try {\n const response = await fetchDynamicConfig(appFields);\n\n // Note the SDK only clears throttle state if response is success or non-retriable.\n retryData.deleteThrottleMetadata(appId);\n\n return response;\n } catch (e) {\n const error = e as Error;\n if (!isRetriableError(error)) {\n retryData.deleteThrottleMetadata(appId);\n if (measurementId) {\n logger.warn(\n `Failed to fetch this Firebase app's measurement ID from the server.` +\n ` Falling back to the measurement ID ${measurementId}` +\n ` provided in the \"measurementId\" field in the local Firebase config. [${error?.message}]`\n );\n return { appId, measurementId };\n } else {\n throw e;\n }\n }\n\n const backoffMillis =\n Number(error?.customData?.httpStatus) === 503\n ? calculateBackoffMillis(\n backoffCount,\n retryData.intervalMillis,\n LONG_RETRY_FACTOR\n )\n : calculateBackoffMillis(backoffCount, retryData.intervalMillis);\n\n // Increments backoff state.\n const throttleMetadata = {\n throttleEndTimeMillis: Date.now() + backoffMillis,\n backoffCount: backoffCount + 1\n };\n\n // Persists state.\n retryData.setThrottleMetadata(appId, throttleMetadata);\n logger.debug(`Calling attemptFetch again in ${backoffMillis} millis`);\n\n return attemptFetchDynamicConfigWithRetry(\n appFields,\n throttleMetadata,\n signal,\n retryData\n );\n }\n}\n\n/**\n * Supports waiting on a backoff by:\n *\n *

    \n *
  • Promisifying setTimeout, so we can set a timeout in our Promise chain
  • \n *
  • Listening on a signal bus for abort events, just like the Fetch API
  • \n *
  • Failing in the same way the Fetch API fails, so timing out a live request and a throttled\n * request appear the same.
  • \n *
\n *\n *

Visible for testing.\n */\nfunction setAbortableTimeout(\n signal: AnalyticsAbortSignal,\n throttleEndTimeMillis: number\n): Promise {\n return new Promise((resolve, reject) => {\n // Derives backoff from given end time, normalizing negative numbers to zero.\n const backoffMillis = Math.max(throttleEndTimeMillis - Date.now(), 0);\n\n const timeout = setTimeout(resolve, backoffMillis);\n\n // Adds listener, rather than sets onabort, because signal is a shared object.\n signal.addEventListener(() => {\n clearTimeout(timeout);\n // If the request completes before this timeout, the rejection has no effect.\n reject(\n ERROR_FACTORY.create(AnalyticsError.FETCH_THROTTLE, {\n throttleEndTimeMillis\n })\n );\n });\n });\n}\n\ntype RetriableError = FirebaseError & { customData: { httpStatus: string } };\n\n/**\n * Returns true if the {@link Error} indicates a fetch request may succeed later.\n */\nfunction isRetriableError(e: Error): e is RetriableError {\n if (!(e instanceof FirebaseError) || !e.customData) {\n return false;\n }\n\n // Uses string index defined by ErrorData, which FirebaseError implements.\n const httpStatus = Number(e.customData['httpStatus']);\n\n return (\n httpStatus === 429 ||\n httpStatus === 500 ||\n httpStatus === 503 ||\n httpStatus === 504\n );\n}\n\n/**\n * Shims a minimal AbortSignal (copied from Remote Config).\n *\n *

AbortController's AbortSignal conveniently decouples fetch timeout logic from other aspects\n * of networking, such as retries. Firebase doesn't use AbortController enough to justify a\n * polyfill recommendation, like we do with the Fetch API, but this minimal shim can easily be\n * swapped out if/when we do.\n */\nexport class AnalyticsAbortSignal {\n listeners: Array<() => void> = [];\n addEventListener(listener: () => void): void {\n this.listeners.push(listener);\n }\n abort(): void {\n this.listeners.forEach(listener => listener());\n }\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport {\n AnalyticsCallOptions,\n CustomParams,\n ControlParams,\n EventParams,\n ConsentSettings\n} from './public-types';\nimport { Gtag } from './types';\nimport { GtagCommand } from './constants';\nimport { AnalyticsError, ERROR_FACTORY } from './errors';\n\n/**\n * Event parameters to set on 'gtag' during initialization.\n */\nexport let defaultEventParametersForInit: CustomParams | undefined;\n\n/**\n * Logs an analytics event through the Firebase SDK.\n *\n * @param gtagFunction Wrapped gtag function that waits for fid to be set before sending an event\n * @param eventName Google Analytics event name, choose from standard list or use a custom string.\n * @param eventParams Analytics event parameters.\n */\nexport async function logEvent(\n gtagFunction: Gtag,\n initializationPromise: Promise,\n eventName: string,\n eventParams?: EventParams,\n options?: AnalyticsCallOptions\n): Promise {\n if (options && options.global) {\n gtagFunction(GtagCommand.EVENT, eventName, eventParams);\n return;\n } else {\n const measurementId = await initializationPromise;\n const params: EventParams | ControlParams = {\n ...eventParams,\n 'send_to': measurementId\n };\n gtagFunction(GtagCommand.EVENT, eventName, params);\n }\n}\n\n/**\n * Set screen_name parameter for this Google Analytics ID.\n *\n * @deprecated Use {@link logEvent} with `eventName` as 'screen_view' and add relevant `eventParams`.\n * See {@link https://firebase.google.com/docs/analytics/screenviews | Track Screenviews}.\n *\n * @param gtagFunction Wrapped gtag function that waits for fid to be set before sending an event\n * @param screenName Screen name string to set.\n */\nexport async function setCurrentScreen(\n gtagFunction: Gtag,\n initializationPromise: Promise,\n screenName: string | null,\n options?: AnalyticsCallOptions\n): Promise {\n if (options && options.global) {\n gtagFunction(GtagCommand.SET, { 'screen_name': screenName });\n return Promise.resolve();\n } else {\n const measurementId = await initializationPromise;\n gtagFunction(GtagCommand.CONFIG, measurementId, {\n update: true,\n 'screen_name': screenName\n });\n }\n}\n\n/**\n * Set user_id parameter for this Google Analytics ID.\n *\n * @param gtagFunction Wrapped gtag function that waits for fid to be set before sending an event\n * @param id User ID string to set\n */\nexport async function setUserId(\n gtagFunction: Gtag,\n initializationPromise: Promise,\n id: string | null,\n options?: AnalyticsCallOptions\n): Promise {\n if (options && options.global) {\n gtagFunction(GtagCommand.SET, { 'user_id': id });\n return Promise.resolve();\n } else {\n const measurementId = await initializationPromise;\n gtagFunction(GtagCommand.CONFIG, measurementId, {\n update: true,\n 'user_id': id\n });\n }\n}\n\n/**\n * Set all other user properties other than user_id and screen_name.\n *\n * @param gtagFunction Wrapped gtag function that waits for fid to be set before sending an event\n * @param properties Map of user properties to set\n */\nexport async function setUserProperties(\n gtagFunction: Gtag,\n initializationPromise: Promise,\n properties: CustomParams,\n options?: AnalyticsCallOptions\n): Promise {\n if (options && options.global) {\n const flatProperties: { [key: string]: unknown } = {};\n for (const key of Object.keys(properties)) {\n // use dot notation for merge behavior in gtag.js\n flatProperties[`user_properties.${key}`] = properties[key];\n }\n gtagFunction(GtagCommand.SET, flatProperties);\n return Promise.resolve();\n } else {\n const measurementId = await initializationPromise;\n gtagFunction(GtagCommand.CONFIG, measurementId, {\n update: true,\n 'user_properties': properties\n });\n }\n}\n\n/**\n * Retrieves a unique Google Analytics identifier for the web client.\n * See {@link https://developers.google.com/analytics/devguides/collection/ga4/reference/config#client_id | client_id}.\n *\n * @param gtagFunction Wrapped gtag function that waits for fid to be set before sending an event\n */\nexport async function internalGetGoogleAnalyticsClientId(\n gtagFunction: Gtag,\n initializationPromise: Promise\n): Promise {\n const measurementId = await initializationPromise;\n return new Promise((resolve, reject) => {\n gtagFunction(\n GtagCommand.GET,\n measurementId,\n 'client_id',\n (clientId: string) => {\n if (!clientId) {\n reject(ERROR_FACTORY.create(AnalyticsError.NO_CLIENT_ID));\n }\n resolve(clientId);\n }\n );\n });\n}\n\n/**\n * Set whether collection is enabled for this ID.\n *\n * @param enabled If true, collection is enabled for this ID.\n */\nexport async function setAnalyticsCollectionEnabled(\n initializationPromise: Promise,\n enabled: boolean\n): Promise {\n const measurementId = await initializationPromise;\n window[`ga-disable-${measurementId}`] = !enabled;\n}\n\n/**\n * Consent parameters to default to during 'gtag' initialization.\n */\nexport let defaultConsentSettingsForInit: ConsentSettings | undefined;\n\n/**\n * Sets the variable {@link defaultConsentSettingsForInit} for use in the initialization of\n * analytics.\n *\n * @param consentSettings Maps the applicable end user consent state for gtag.js.\n */\nexport function _setConsentDefaultForInit(\n consentSettings?: ConsentSettings\n): void {\n defaultConsentSettingsForInit = consentSettings;\n}\n\n/**\n * Sets the variable `defaultEventParametersForInit` for use in the initialization of\n * analytics.\n *\n * @param customParams Any custom params the user may pass to gtag.js.\n */\nexport function _setDefaultEventParametersForInit(\n customParams?: CustomParams\n): void {\n defaultEventParametersForInit = customParams;\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { DynamicConfig, Gtag, MinimalDynamicConfig } from './types';\nimport { GtagCommand, GA_FID_KEY, ORIGIN_KEY } from './constants';\nimport { _FirebaseInstallationsInternal } from '@firebase/installations';\nimport { fetchDynamicConfigWithRetry } from './get-config';\nimport { logger } from './logger';\nimport { FirebaseApp } from '@firebase/app';\nimport {\n isIndexedDBAvailable,\n validateIndexedDBOpenable\n} from '@firebase/util';\nimport { ERROR_FACTORY, AnalyticsError } from './errors';\nimport { findGtagScriptOnPage, insertScriptTag } from './helpers';\nimport { AnalyticsSettings } from './public-types';\nimport {\n defaultConsentSettingsForInit,\n _setConsentDefaultForInit,\n defaultEventParametersForInit,\n _setDefaultEventParametersForInit\n} from './functions';\n\nasync function validateIndexedDB(): Promise {\n if (!isIndexedDBAvailable()) {\n logger.warn(\n ERROR_FACTORY.create(AnalyticsError.INDEXEDDB_UNAVAILABLE, {\n errorInfo: 'IndexedDB is not available in this environment.'\n }).message\n );\n return false;\n } else {\n try {\n await validateIndexedDBOpenable();\n } catch (e) {\n logger.warn(\n ERROR_FACTORY.create(AnalyticsError.INDEXEDDB_UNAVAILABLE, {\n errorInfo: (e as Error)?.toString()\n }).message\n );\n return false;\n }\n }\n return true;\n}\n\n/**\n * Initialize the analytics instance in gtag.js by calling config command with fid.\n *\n * NOTE: We combine analytics initialization and setting fid together because we want fid to be\n * part of the `page_view` event that's sent during the initialization\n * @param app Firebase app\n * @param gtagCore The gtag function that's not wrapped.\n * @param dynamicConfigPromisesList Array of all dynamic config promises.\n * @param measurementIdToAppId Maps measurementID to appID.\n * @param installations _FirebaseInstallationsInternal instance.\n *\n * @returns Measurement ID.\n */\nexport async function _initializeAnalytics(\n app: FirebaseApp,\n dynamicConfigPromisesList: Array<\n Promise\n >,\n measurementIdToAppId: { [key: string]: string },\n installations: _FirebaseInstallationsInternal,\n gtagCore: Gtag,\n dataLayerName: string,\n options?: AnalyticsSettings\n): Promise {\n const dynamicConfigPromise = fetchDynamicConfigWithRetry(app);\n // Once fetched, map measurementIds to appId, for ease of lookup in wrapped gtag function.\n dynamicConfigPromise\n .then(config => {\n measurementIdToAppId[config.measurementId] = config.appId;\n if (\n app.options.measurementId &&\n config.measurementId !== app.options.measurementId\n ) {\n logger.warn(\n `The measurement ID in the local Firebase config (${app.options.measurementId})` +\n ` does not match the measurement ID fetched from the server (${config.measurementId}).` +\n ` To ensure analytics events are always sent to the correct Analytics property,` +\n ` update the` +\n ` measurement ID field in the local config or remove it from the local config.`\n );\n }\n })\n .catch(e => logger.error(e));\n // Add to list to track state of all dynamic config promises.\n dynamicConfigPromisesList.push(dynamicConfigPromise);\n\n const fidPromise: Promise = validateIndexedDB().then(\n envIsValid => {\n if (envIsValid) {\n return installations.getId();\n } else {\n return undefined;\n }\n }\n );\n\n const [dynamicConfig, fid] = await Promise.all([\n dynamicConfigPromise,\n fidPromise\n ]);\n\n // Detect if user has already put the gtag