@firebase/messaging/dist/index.sw.cjs.map

This is the Firebase Cloud Messaging component of the Firebase JS SDK.

{"version":3,"file":"index.sw.cjs","sources":["../src/util/constants.ts","../src/interfaces/internal-message-payload.ts","../src/helpers/array-base64-translator.ts","../src/helpers/migrate-old-database.ts","../src/util/errors.ts","../src/internals/idb-manager.ts","../src/internals/requests.ts","../src/internals/token-manager.ts","../src/helpers/updateVapidKey.ts","../src/internals/register-fid.ts","../src/helpers/fid-change-registration.ts","../src/helpers/externalizePayload.ts","../src/helpers/is-console-message.ts","../src/helpers/sleep.ts","../src/helpers/logToFirelog.ts","../src/listeners/sw-listeners.ts","../src/helpers/extract-app-config.ts","../src/messaging-service.ts","../src/helpers/register.ts","../src/api/isSupported.ts","../src/api/onBackgroundMessage.ts","../src/api/onRegistered.ts","../src/api/onUnregistered.ts","../src/api/setDeliveryMetricsExportedToBigQueryEnabled.ts","../src/api.ts","../src/index.sw.ts"],"sourcesContent":["/**\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 const DEFAULT_SW_PATH = '/firebase-messaging-sw.js';\nexport const DEFAULT_SW_SCOPE = '/firebase-cloud-messaging-push-scope';\n\nexport const DEFAULT_VAPID_KEY =\n  'BDOU99-h67HcA6JeFXHbSNMu7e2yNNu3RzoMj8TM4W88jITfq7ZmPvIM1Iv-4_l2LxQcYwhqby2xGpWwzjfAnG4';\n\nexport const ENDPOINT = 'https://fcmregistrations.googleapis.com/v1';\n\n/** Key of FCM Payload in Notification's data field. */\nexport const FCM_MSG = 'FCM_MSG';\n\nexport const CONSOLE_CAMPAIGN_ID = 'google.c.a.c_id';\nexport const CONSOLE_CAMPAIGN_NAME = 'google.c.a.c_l';\nexport const CONSOLE_CAMPAIGN_TIME = 'google.c.a.ts';\n/** Set to '1' if Analytics is enabled for the campaign */\nexport const CONSOLE_CAMPAIGN_ANALYTICS_ENABLED = 'google.c.a.e';\nexport const TAG = 'FirebaseMessaging: ';\nexport const MAX_NUMBER_OF_EVENTS_PER_LOG_REQUEST = 1000;\nexport const MAX_RETRIES = 3;\nexport const LOG_INTERVAL_IN_MS = 86400000; //24 hour\nexport const DEFAULT_BACKOFF_TIME_MS = 5000;\nexport const DEFAULT_REGISTRATION_TIMEOUT = 10000;\n\n// FCM log source name registered at Firelog: 'FCM_CLIENT_EVENT_LOGGING'. It uniquely identifies\n// FCM's logging configuration.\nexport const FCM_LOG_SOURCE = 1249;\n\n// Defined as in proto/messaging_event.proto. Neglecting fields that are supported.\nexport const SDK_PLATFORM_WEB = 3;\nexport const EVENT_MESSAGE_DELIVERED = 1;\n\nexport enum MessageType {\n  DATA_MESSAGE = 1,\n  DISPLAY_NOTIFICATION = 3\n}\n","/**\n * @license\n * Copyright 2018 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"); you may not use this file except\n * in compliance with the License. You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software distributed under the License\n * is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express\n * or implied. See the License for the specific language governing permissions and limitations under\n * the License.\n */\n\nimport {\n  CONSOLE_CAMPAIGN_ANALYTICS_ENABLED,\n  CONSOLE_CAMPAIGN_ID,\n  CONSOLE_CAMPAIGN_NAME,\n  CONSOLE_CAMPAIGN_TIME\n} from '../util/constants';\n\nexport interface MessagePayloadInternal {\n  notification?: NotificationPayloadInternal;\n  data?: unknown;\n  fcmOptions?: FcmOptionsInternal;\n  messageType?: MessageType;\n  isFirebaseMessaging?: boolean;\n  from: string;\n  fcmMessageId: string;\n  productId: number;\n  // eslint-disable-next-line camelcase\n  collapse_key: string;\n}\n\n// https://developer.mozilla.org/en-US/docs/Web/API/Notification/actions\ninterface NotificationAction {\n  action: string;\n  icon?: string;\n  title: string;\n}\n\n/**\n * This interface defines experimental properties of NotificationOptions, that are not part of\n * the interface in the generated DOM types at https://github.com/microsoft/TypeScript-DOM-lib-generator/blob/179bdd84a944933a3103f29c2274c9f5a857b693/baselines/dom.generated.d.ts#L1012\n * https://developer.mozilla.org/en-US/docs/Web/API/Notification\n */\ninterface NotificationOptionsExperimental extends NotificationOptions {\n  readonly maxActions?: number;\n  readonly actions?: NotificationAction[];\n  readonly image?: string;\n  readonly renotify?: boolean;\n  readonly timestamp?: EpochTimeStamp;\n  readonly vibrate?: VibratePattern;\n}\n\nexport interface NotificationPayloadInternal\n  extends NotificationOptionsExperimental {\n  title: string;\n  // Supported in the Legacy Send API.\n  // See:https://firebase.google.com/docs/cloud-messaging/xmpp-server-ref.\n  // eslint-disable-next-line camelcase\n  click_action?: string;\n  icon?: string;\n}\n\n// Defined in\n// https://firebase.google.com/docs/reference/fcm/rest/v1/projects.messages#webpushfcmoptions. Note\n// that the keys are sent to the clients in snake cases which we need to convert to camel so it can\n// be exposed as a type to match the Firebase API convention.\nexport interface FcmOptionsInternal {\n  link?: string;\n\n  // eslint-disable-next-line camelcase\n  analytics_label?: string;\n}\n\nexport enum MessageType {\n  PUSH_RECEIVED = 'push-received',\n  NOTIFICATION_CLICKED = 'notification-clicked',\n  FID_REGISTERED = 'fid-registered'\n}\n\n/** Additional data of a message sent from the FN Console. */\nexport interface ConsoleMessageData {\n  [CONSOLE_CAMPAIGN_ID]: string;\n  [CONSOLE_CAMPAIGN_TIME]: string;\n  [CONSOLE_CAMPAIGN_NAME]?: string;\n  [CONSOLE_CAMPAIGN_ANALYTICS_ENABLED]?: '1';\n}\n\nexport interface FidRegisteredPayload {\n  isFirebaseMessaging: boolean;\n  messageType: MessageType.FID_REGISTERED;\n  fid: string;\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\nexport function arrayToBase64(array: Uint8Array | ArrayBuffer): string {\n  const uint8Array = new Uint8Array(array);\n  const base64String = btoa(String.fromCharCode(...uint8Array));\n  return base64String.replace(/=/g, '').replace(/\\+/g, '-').replace(/\\//g, '_');\n}\n\nexport function base64ToArray(base64String: string): Uint8Array {\n  const padding = '='.repeat((4 - (base64String.length % 4)) % 4);\n  const base64 = (base64String + padding)\n    .replace(/\\-/g, '+')\n    .replace(/_/g, '/');\n\n  const rawData = atob(base64);\n  const outputArray = new Uint8Array(rawData.length);\n\n  for (let i = 0; i < rawData.length; ++i) {\n    outputArray[i] = rawData.charCodeAt(i);\n  }\n  return outputArray;\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 { deleteDB, openDB } from 'idb';\n\nimport { TokenDetails } from '../interfaces/registration-details';\nimport { arrayToBase64 } from './array-base64-translator';\n\n// https://github.com/firebase/firebase-js-sdk/blob/7857c212f944a2a9eb421fd4cb7370181bc034b5/packages/messaging/src/interfaces/token-details.ts\nexport interface V2TokenDetails {\n  fcmToken: string;\n  swScope: string;\n  vapidKey: string | Uint8Array;\n  subscription: PushSubscription;\n  fcmSenderId: string;\n  fcmPushSet: string;\n  createTime?: number;\n  endpoint?: string;\n  auth?: string;\n  p256dh?: string;\n}\n\n// https://github.com/firebase/firebase-js-sdk/blob/6b5b15ce4ea3df5df5df8a8b33a4e41e249c7715/packages/messaging/src/interfaces/registration-details.ts\nexport interface V3TokenDetails {\n  fcmToken: string;\n  swScope: string;\n  vapidKey: Uint8Array;\n  fcmSenderId: string;\n  fcmPushSet: string;\n  endpoint: string;\n  auth: ArrayBuffer;\n  p256dh: ArrayBuffer;\n  createTime: number;\n}\n\n// https://github.com/firebase/firebase-js-sdk/blob/9567dba664732f681fa7fe60f5b7032bb1daf4c9/packages/messaging/src/interfaces/registration-details.ts\nexport interface V4TokenDetails {\n  fcmToken: string;\n  swScope: string;\n  vapidKey: Uint8Array;\n  fcmSenderId: string;\n  endpoint: string;\n  auth: ArrayBufferLike;\n  p256dh: ArrayBufferLike;\n  createTime: number;\n}\n\nconst OLD_DB_NAME = 'fcm_token_details_db';\n/**\n * The last DB version of 'fcm_token_details_db' was 4. This is one higher, so that the upgrade\n * callback is called for all versions of the old DB.\n */\nconst OLD_DB_VERSION = 5;\nconst OLD_OBJECT_STORE_NAME = 'fcm_token_object_Store';\n\nexport async function migrateOldDatabase(\n  senderId: string\n): Promise<TokenDetails | null> {\n  if ('databases' in indexedDB) {\n    // indexedDb.databases() is an IndexedDB v3 API and does not exist in all browsers. TODO: Remove\n    // typecast when it lands in TS types.\n    const databases = await (\n      indexedDB as {\n        databases(): Promise<Array<{ name: string; version: number }>>;\n      }\n    ).databases();\n    const dbNames = databases.map(db => db.name);\n\n    if (!dbNames.includes(OLD_DB_NAME)) {\n      // old DB didn't exist, no need to open.\n      return null;\n    }\n  }\n\n  let tokenDetails: TokenDetails | null = null;\n\n  const db = await openDB(OLD_DB_NAME, OLD_DB_VERSION, {\n    upgrade: async (db, oldVersion, newVersion, upgradeTransaction) => {\n      if (oldVersion < 2) {\n        // Database too old, skip migration.\n        return;\n      }\n\n      if (!db.objectStoreNames.contains(OLD_OBJECT_STORE_NAME)) {\n        // Database did not exist. Nothing to do.\n        return;\n      }\n\n      const objectStore = upgradeTransaction.objectStore(OLD_OBJECT_STORE_NAME);\n      const value = await objectStore.index('fcmSenderId').get(senderId);\n      await objectStore.clear();\n\n      if (!value) {\n        // No entry in the database, nothing to migrate.\n        return;\n      }\n\n      if (oldVersion === 2) {\n        const oldDetails = value as V2TokenDetails;\n\n        if (!oldDetails.auth || !oldDetails.p256dh || !oldDetails.endpoint) {\n          return;\n        }\n\n        tokenDetails = {\n          token: oldDetails.fcmToken,\n          createTime: oldDetails.createTime ?? Date.now(),\n          subscriptionOptions: {\n            auth: oldDetails.auth,\n            p256dh: oldDetails.p256dh,\n            endpoint: oldDetails.endpoint,\n            swScope: oldDetails.swScope,\n            vapidKey:\n              typeof oldDetails.vapidKey === 'string'\n                ? oldDetails.vapidKey\n                : arrayToBase64(oldDetails.vapidKey)\n          }\n        };\n      } else if (oldVersion === 3) {\n        const oldDetails = value as V3TokenDetails;\n\n        tokenDetails = {\n          token: oldDetails.fcmToken,\n          createTime: oldDetails.createTime,\n          subscriptionOptions: {\n            auth: arrayToBase64(oldDetails.auth),\n            p256dh: arrayToBase64(oldDetails.p256dh),\n            endpoint: oldDetails.endpoint,\n            swScope: oldDetails.swScope,\n            vapidKey: arrayToBase64(oldDetails.vapidKey)\n          }\n        };\n      } else if (oldVersion === 4) {\n        const oldDetails = value as V4TokenDetails;\n\n        tokenDetails = {\n          token: oldDetails.fcmToken,\n          createTime: oldDetails.createTime,\n          subscriptionOptions: {\n            auth: arrayToBase64(oldDetails.auth),\n            p256dh: arrayToBase64(oldDetails.p256dh),\n            endpoint: oldDetails.endpoint,\n            swScope: oldDetails.swScope,\n            vapidKey: arrayToBase64(oldDetails.vapidKey)\n          }\n        };\n      }\n    }\n  });\n  db.close();\n\n  // Delete all old databases.\n  await deleteDB(OLD_DB_NAME);\n  await deleteDB('fcm_vapid_details_db');\n  await deleteDB('undefined');\n\n  return checkTokenDetails(tokenDetails) ? tokenDetails : null;\n}\n\nfunction checkTokenDetails(\n  tokenDetails: TokenDetails | null\n): tokenDetails is TokenDetails {\n  if (!tokenDetails || !tokenDetails.subscriptionOptions) {\n    return false;\n  }\n  const { subscriptionOptions } = tokenDetails;\n  return (\n    typeof tokenDetails.createTime === 'number' &&\n    tokenDetails.createTime > 0 &&\n    typeof tokenDetails.token === 'string' &&\n    tokenDetails.token.length > 0 &&\n    typeof subscriptionOptions.auth === 'string' &&\n    subscriptionOptions.auth.length > 0 &&\n    typeof subscriptionOptions.p256dh === 'string' &&\n    subscriptionOptions.p256dh.length > 0 &&\n    typeof subscriptionOptions.endpoint === 'string' &&\n    subscriptionOptions.endpoint.length > 0 &&\n    typeof subscriptionOptions.swScope === 'string' &&\n    subscriptionOptions.swScope.length > 0 &&\n    typeof subscriptionOptions.vapidKey === 'string' &&\n    subscriptionOptions.vapidKey.length > 0\n  );\n}\n","/**\n * @license\n * Copyright 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 { ErrorFactory, ErrorMap } from '@firebase/util';\n\nexport const enum ErrorCode {\n  MISSING_APP_CONFIG_VALUES = 'missing-app-config-values',\n  AVAILABLE_IN_WINDOW = 'only-available-in-window',\n  AVAILABLE_IN_SW = 'only-available-in-sw',\n  PERMISSION_DEFAULT = 'permission-default',\n  PERMISSION_BLOCKED = 'permission-blocked',\n  UNSUPPORTED_BROWSER = 'unsupported-browser',\n  INDEXED_DB_UNSUPPORTED = 'indexed-db-unsupported',\n  FAILED_DEFAULT_REGISTRATION = 'failed-service-worker-registration',\n  TOKEN_SUBSCRIBE_FAILED = 'token-subscribe-failed',\n  TOKEN_SUBSCRIBE_NO_TOKEN = 'token-subscribe-no-token',\n  FID_REGISTRATION_FAILED = 'fid-registration-failed',\n  FID_UNREGISTER_FAILED = 'fid-unregister-failed',\n  FID_REGISTRATION_IDB_SCHEMA_UNAVAILABLE = 'fid-registration-idb-schema-unavailable',\n  TOKEN_UNSUBSCRIBE_FAILED = 'token-unsubscribe-failed',\n  TOKEN_UPDATE_FAILED = 'token-update-failed',\n  TOKEN_UPDATE_NO_TOKEN = 'token-update-no-token',\n  INVALID_BG_HANDLER = 'invalid-bg-handler',\n  USE_SW_AFTER_GET_TOKEN = 'use-sw-after-get-token',\n  INVALID_SW_REGISTRATION = 'invalid-sw-registration',\n  USE_VAPID_KEY_AFTER_GET_TOKEN = 'use-vapid-key-after-get-token',\n  INVALID_VAPID_KEY = 'invalid-vapid-key',\n  INVALID_ON_REGISTERED_HANDLER = 'invalid-on-registered-handler'\n}\n\nexport const ERROR_MAP: ErrorMap<ErrorCode> = {\n  [ErrorCode.MISSING_APP_CONFIG_VALUES]:\n    'Missing App configuration value: \"{$valueName}\"',\n  [ErrorCode.AVAILABLE_IN_WINDOW]:\n    'This method is available in a Window context.',\n  [ErrorCode.AVAILABLE_IN_SW]:\n    'This method is available in a service worker context.',\n  [ErrorCode.PERMISSION_DEFAULT]:\n    'The notification permission was not granted and dismissed instead.',\n  [ErrorCode.PERMISSION_BLOCKED]:\n    'The notification permission was not granted and blocked instead.',\n  [ErrorCode.UNSUPPORTED_BROWSER]:\n    \"This browser doesn't support the API's required to use the Firebase SDK.\",\n  [ErrorCode.INDEXED_DB_UNSUPPORTED]:\n    \"This browser doesn't support indexedDb.open() (ex. Safari iFrame, Firefox Private Browsing, etc)\",\n  [ErrorCode.FAILED_DEFAULT_REGISTRATION]:\n    'We are unable to register the default service worker. {$browserErrorMessage}',\n  [ErrorCode.TOKEN_SUBSCRIBE_FAILED]:\n    'A problem occurred while subscribing the user to FCM: {$errorInfo}',\n  [ErrorCode.TOKEN_SUBSCRIBE_NO_TOKEN]:\n    'FCM returned no token when subscribing the user to push.',\n  [ErrorCode.FID_REGISTRATION_FAILED]:\n    'A problem occurred while creating an FCM registration via FID: {$errorInfo}',\n  [ErrorCode.FID_UNREGISTER_FAILED]:\n    'A problem occurred while unregistering the FCM registration via FID: {$errorInfo}',\n  [ErrorCode.FID_REGISTRATION_IDB_SCHEMA_UNAVAILABLE]:\n    'Unable to read or persist FID registration metadata because the messaging ' +\n    'IndexedDB schema is unavailable (for example, the database could not be ' +\n    'upgraded to the latest version).',\n  [ErrorCode.TOKEN_UNSUBSCRIBE_FAILED]:\n    'A problem occurred while unsubscribing the ' +\n    'user from FCM: {$errorInfo}',\n  [ErrorCode.TOKEN_UPDATE_FAILED]:\n    'A problem occurred while updating the user from FCM: {$errorInfo}',\n  [ErrorCode.TOKEN_UPDATE_NO_TOKEN]:\n    'FCM returned no token when updating the user to push.',\n  [ErrorCode.USE_SW_AFTER_GET_TOKEN]:\n    'The useServiceWorker() method may only be called once and must be ' +\n    'called before calling getToken() to ensure your service worker is used.',\n  [ErrorCode.INVALID_SW_REGISTRATION]:\n    'The input to useServiceWorker() must be a ServiceWorkerRegistration.',\n  [ErrorCode.INVALID_BG_HANDLER]:\n    'The input to setBackgroundMessageHandler() must be a function.',\n  [ErrorCode.INVALID_VAPID_KEY]: 'The public VAPID key must be a string.',\n  [ErrorCode.USE_VAPID_KEY_AFTER_GET_TOKEN]:\n    'The usePublicVapidKey() method may only be called once and must be ' +\n    'called before calling getToken() to ensure your VAPID key is used.',\n  [ErrorCode.INVALID_ON_REGISTERED_HANDLER]:\n    'No onRegistered callback handler was provided or registered. Implement onRegistered() before register().'\n};\n\ninterface ErrorParams {\n  [ErrorCode.MISSING_APP_CONFIG_VALUES]: {\n    valueName: string;\n  };\n  [ErrorCode.FAILED_DEFAULT_REGISTRATION]: { browserErrorMessage: string };\n  [ErrorCode.TOKEN_SUBSCRIBE_FAILED]: { errorInfo: string };\n  [ErrorCode.FID_REGISTRATION_FAILED]: { errorInfo: string };\n  [ErrorCode.FID_UNREGISTER_FAILED]: { errorInfo: string };\n  [ErrorCode.TOKEN_UNSUBSCRIBE_FAILED]: { errorInfo: string };\n  [ErrorCode.TOKEN_UPDATE_FAILED]: { errorInfo: string };\n}\n\nexport const ERROR_FACTORY = new ErrorFactory<ErrorCode, ErrorParams>(\n  'messaging',\n  'Messaging',\n  ERROR_MAP\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 { deleteDB, openDB } from 'idb';\nimport type { DBSchema, IDBPDatabase, OpenDBCallbacks } from 'idb';\n\nimport { FirebaseInternalDependencies } from '../interfaces/internal-dependencies';\nimport { TokenDetails } from '../interfaces/registration-details';\nimport { migrateOldDatabase } from '../helpers/migrate-old-database';\nimport { ERROR_FACTORY, ErrorCode } from '../util/errors';\n\nexport const DATABASE_NAME = 'firebase-messaging-database';\nconst DATABASE_VERSION = 2;\nconst TOKEN_OBJECT_STORE_NAME = 'firebase-messaging-store';\nconst FID_REGISTRATION_OBJECT_STORE_NAME =\n  'firebase-messaging-fid-registration-store';\n\ninterface MessagingDB extends DBSchema {\n  'firebase-messaging-store': {\n    key: string;\n    value: TokenDetails;\n  };\n  'firebase-messaging-fid-registration-store': {\n    key: string;\n    value: FidRegistrationDetails;\n  };\n}\n\nexport interface FidRegistrationDetails {\n  fid: string;\n  lastRegisterTime: number;\n  vapidKey?: string;\n}\n\ninterface IdbImpl {\n  openDB: typeof openDB;\n  deleteDB: typeof deleteDB;\n}\n\nconst defaultIdb: IdbImpl = { openDB, deleteDB };\nlet idbImpl: IdbImpl = defaultIdb;\n\n// Exported for tests.\nexport function _setIdbForTests(impl: IdbImpl): void {\n  idbImpl = impl;\n}\n\nexport function _resetIdbForTests(): void {\n  idbImpl = defaultIdb;\n}\n\n// Open v2, but fall back to v1 if upgrade/open fails. Cache as `unknown` and guard store access.\nlet dbPromise: Promise<IDBPDatabase<unknown>> | null = null;\n\nfunction migrateMessagingDb(\n  upgradeDb: IDBPDatabase<unknown>,\n  oldVersion: number,\n  targetSchemaVersion: 1 | 2\n): void {\n  // Intentional fall-through for v2: run all intermediate migrations.\n  // eslint-disable-next-line default-case\n  switch (oldVersion) {\n    case 0:\n      upgradeDb.createObjectStore(TOKEN_OBJECT_STORE_NAME);\n      if (targetSchemaVersion === 1) {\n        break;\n      }\n    // fall through\n    case 1:\n      if (targetSchemaVersion === 2) {\n        upgradeDb.createObjectStore(FID_REGISTRATION_OBJECT_STORE_NAME);\n      }\n  }\n}\n\nfunction createOpenDbOptions(\n  targetSchemaVersion: 1 | 2\n): OpenDBCallbacks<unknown> {\n  return {\n    upgrade: (upgradeDb: IDBPDatabase<unknown>, oldVersion: number) => {\n      migrateMessagingDb(upgradeDb, oldVersion, targetSchemaVersion);\n    },\n    blocked: () => {\n      /* no-op */\n    },\n    blocking: (\n      _currentVersion: number,\n      _blockedVersion: number | null,\n      event: IDBVersionChangeEvent\n    ) => {\n      dbPromise = null;\n      (event.target as IDBDatabase | null)?.close();\n    },\n    terminated: () => {\n      dbPromise = null;\n    }\n  };\n}\n\nfunction getDbPromise(): Promise<IDBPDatabase<MessagingDB>> {\n  if (!dbPromise) {\n    const openLatest = idbImpl.openDB(\n      DATABASE_NAME,\n      DATABASE_VERSION,\n      createOpenDbOptions(2)\n    );\n\n    // Assign synchronously to avoid concurrent openDB() calls.\n    dbPromise = (openLatest as unknown as Promise<IDBPDatabase<unknown>>).catch(\n      () =>\n        idbImpl.openDB(\n          DATABASE_NAME,\n          DATABASE_VERSION - 1,\n          createOpenDbOptions(1)\n        ) as unknown as Promise<IDBPDatabase<unknown>>\n    );\n  }\n  return dbPromise as Promise<IDBPDatabase<MessagingDB>>;\n}\n\nfunction hasObjectStore(db: IDBPDatabase<unknown>, storeName: string): boolean {\n  return db.objectStoreNames.contains(storeName);\n}\n\nfunction assertFidRegistrationObjectStore(db: IDBPDatabase<MessagingDB>): void {\n  if (\n    !hasObjectStore(\n      db as unknown as IDBPDatabase<unknown>,\n      FID_REGISTRATION_OBJECT_STORE_NAME\n    )\n  ) {\n    throw ERROR_FACTORY.create(\n      ErrorCode.FID_REGISTRATION_IDB_SCHEMA_UNAVAILABLE\n    );\n  }\n}\n\nexport async function dbGet(\n  firebaseDependencies: FirebaseInternalDependencies\n): Promise<TokenDetails | undefined> {\n  const key = getKey(firebaseDependencies);\n  const db = await getDbPromise();\n  const tokenDetails = (await db\n    .transaction(TOKEN_OBJECT_STORE_NAME)\n    .objectStore(TOKEN_OBJECT_STORE_NAME)\n    .get(key)) as TokenDetails;\n\n  if (tokenDetails) {\n    return tokenDetails;\n  } else {\n    const oldTokenDetails = await migrateOldDatabase(\n      firebaseDependencies.appConfig.senderId\n    );\n    if (oldTokenDetails) {\n      await dbSet(firebaseDependencies, oldTokenDetails);\n      return oldTokenDetails;\n    }\n  }\n}\n\nexport async function dbSet(\n  firebaseDependencies: FirebaseInternalDependencies,\n  tokenDetails: TokenDetails\n): Promise<TokenDetails> {\n  const key = getKey(firebaseDependencies);\n  const db = await getDbPromise();\n\n  const stores: Array<\n    typeof TOKEN_OBJECT_STORE_NAME | typeof FID_REGISTRATION_OBJECT_STORE_NAME\n  > = [TOKEN_OBJECT_STORE_NAME];\n  const hasFidStore = hasObjectStore(\n    db as unknown as IDBPDatabase<unknown>,\n    FID_REGISTRATION_OBJECT_STORE_NAME\n  );\n  if (hasFidStore) {\n    stores.push(FID_REGISTRATION_OBJECT_STORE_NAME);\n  }\n\n  const tx = db.transaction(stores, 'readwrite');\n  await tx.objectStore(TOKEN_OBJECT_STORE_NAME).put(tokenDetails, key);\n  if (hasFidStore) {\n    await tx.objectStore(FID_REGISTRATION_OBJECT_STORE_NAME).delete(key);\n  }\n  await tx.done;\n\n  return tokenDetails;\n}\n\nexport async function dbRemove(\n  firebaseDependencies: FirebaseInternalDependencies\n): Promise<void> {\n  const key = getKey(firebaseDependencies);\n  const db = await getDbPromise();\n  const tx = db.transaction(TOKEN_OBJECT_STORE_NAME, 'readwrite');\n  await tx.objectStore(TOKEN_OBJECT_STORE_NAME).delete(key);\n  await tx.done;\n}\n\nexport async function dbGetFidRegistration(\n  firebaseDependencies: FirebaseInternalDependencies\n): Promise<FidRegistrationDetails | undefined> {\n  const key = getKey(firebaseDependencies);\n  const db = await getDbPromise();\n  assertFidRegistrationObjectStore(db);\n  return (await db\n    .transaction(FID_REGISTRATION_OBJECT_STORE_NAME)\n    .objectStore(FID_REGISTRATION_OBJECT_STORE_NAME)\n    .get(key)) as FidRegistrationDetails | undefined;\n}\n\nexport async function dbSetFidRegistration(\n  firebaseDependencies: FirebaseInternalDependencies,\n  details: FidRegistrationDetails\n): Promise<FidRegistrationDetails> {\n  const key = getKey(firebaseDependencies);\n  const db = await getDbPromise();\n  assertFidRegistrationObjectStore(db);\n\n  const tx = db.transaction(\n    [TOKEN_OBJECT_STORE_NAME, FID_REGISTRATION_OBJECT_STORE_NAME],\n    'readwrite'\n  );\n  await tx.objectStore(FID_REGISTRATION_OBJECT_STORE_NAME).put(details, key);\n  await tx.objectStore(TOKEN_OBJECT_STORE_NAME).delete(key);\n  await tx.done;\n\n  return details;\n}\n\nexport async function dbRemoveFidRegistration(\n  firebaseDependencies: FirebaseInternalDependencies\n): Promise<void> {\n  const key = getKey(firebaseDependencies);\n  const db = await getDbPromise();\n  assertFidRegistrationObjectStore(db);\n  const tx = db.transaction(FID_REGISTRATION_OBJECT_STORE_NAME, 'readwrite');\n  await tx.objectStore(FID_REGISTRATION_OBJECT_STORE_NAME).delete(key);\n  await tx.done;\n}\n\n/** Deletes the DB. Useful for tests. */\nexport async function dbDelete(): Promise<void> {\n  const promise = dbPromise;\n  dbPromise = null;\n\n  try {\n    if (promise) {\n      (await promise).close();\n    }\n  } catch {\n    // Ignore open failures; deleting the DB is the recovery mechanism.\n  } finally {\n    await idbImpl.deleteDB(DATABASE_NAME);\n  }\n}\n\nfunction getKey({ appConfig }: FirebaseInternalDependencies): string {\n  return 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 { DEFAULT_VAPID_KEY, ENDPOINT } from '../util/constants';\nimport { ERROR_FACTORY, ErrorCode } from '../util/errors';\nimport {\n  SubscriptionOptions,\n  TokenDetails\n} from '../interfaces/registration-details';\n\nimport { AppConfig } from '../interfaces/app-config';\nimport { FirebaseInternalDependencies } from '../interfaces/internal-dependencies';\nimport { version as fcmSdkVersion } from '../../package.json';\n\n/** Max attempts (initial fetch + retries) when CreateRegistration `fetch()` throws. */\nexport const FID_REGISTRATION_FETCH_MAX_ATTEMPTS = 3;\n\n/** Base delay in ms; backoff is `BASE * 2^attempt` after each failed attempt. */\nexport const FID_REGISTRATION_FETCH_BASE_BACKOFF_MS = 1000;\n\nexport interface ApiResponse {\n  token?: string;\n  /**\n   * CreateRegistration resource name, e.g. `projects/{projectId}/registrations/{fid}`.\n   */\n  name?: string;\n  error?: { message: string };\n}\n\nexport interface ApiRequestBody {\n  // eslint-disable-next-line camelcase\n  fcm_sdk_version?: string;\n  web: {\n    /**\n     * Client identifier for the registration: the site host (e.g. `www.example.com`) when the\n     * service worker scope is a URL, otherwise the app name.\n     */\n    origin: string;\n    endpoint: string;\n    p256dh: string;\n    auth: string;\n    applicationPubKey?: string;\n  };\n}\n\nexport async function requestGetToken(\n  firebaseDependencies: FirebaseInternalDependencies,\n  subscriptionOptions: SubscriptionOptions\n): Promise<string> {\n  const headers = await getHeaders(firebaseDependencies);\n  const body = getBody(\n    subscriptionOptions,\n    firebaseDependencies.appConfig.appName,\n    /* includeSdkVersion= */ false\n  );\n\n  const subscribeOptions = {\n    method: 'POST',\n    headers,\n    body: JSON.stringify(body)\n  };\n\n  let responseData: ApiResponse;\n  try {\n    const response = await fetch(\n      getEndpoint(firebaseDependencies.appConfig),\n      subscribeOptions\n    );\n    responseData = await response.json();\n  } catch (err) {\n    throw ERROR_FACTORY.create(ErrorCode.TOKEN_SUBSCRIBE_FAILED, {\n      errorInfo: (err as Error)?.toString()\n    });\n  }\n\n  if (responseData.error) {\n    const message = responseData.error.message;\n    throw ERROR_FACTORY.create(ErrorCode.TOKEN_SUBSCRIBE_FAILED, {\n      errorInfo: message\n    });\n  }\n\n  if (!responseData.token) {\n    throw ERROR_FACTORY.create(ErrorCode.TOKEN_SUBSCRIBE_NO_TOKEN);\n  }\n\n  return responseData.token;\n}\n\n/**\n * Creates (or refreshes) an FCM Web registration via CreateRegistration.\n *\n * This is used by the FID-based register path, where we don't require the returned FCM token, but\n * we do require a non-empty `name` (echoing the Firebase Installation ID) in the success response body.\n */\nexport interface CreateRegistrationResult {\n  /** Firebase Installation ID parsed from the CreateRegistration response `name` field. */\n  responseFid: string;\n}\n\nexport async function requestCreateRegistration(\n  firebaseDependencies: FirebaseInternalDependencies,\n  subscriptionOptions: SubscriptionOptions\n): Promise<CreateRegistrationResult> {\n  const headers = await getHeaders(firebaseDependencies);\n  const body = getBody(\n    subscriptionOptions,\n    firebaseDependencies.appConfig.appName,\n    /* includeSdkVersion= */ true\n  );\n\n  const subscribeOptions = {\n    method: 'POST',\n    headers,\n    body: JSON.stringify(body)\n  };\n\n  let response: Response;\n  try {\n    response = await fetchWithExponentialRetry(\n      () =>\n        fetch(getEndpoint(firebaseDependencies.appConfig), subscribeOptions),\n      FID_REGISTRATION_FETCH_MAX_ATTEMPTS,\n      FID_REGISTRATION_FETCH_BASE_BACKOFF_MS\n    );\n  } catch (err) {\n    throw ERROR_FACTORY.create(ErrorCode.FID_REGISTRATION_FAILED, {\n      errorInfo: (err as Error)?.toString()\n    });\n  }\n\n  if (response.ok) {\n    const responseFid = await parseCreateRegistrationSuccessFid(response);\n    return { responseFid };\n  }\n\n  // `fetch()` succeeded, but the backend returned a non-2xx response.\n  // Best-effort parse the body to extract `error.message`, but always fail with\n  // `FID_REGISTRATION_FAILED` to keep the error surface uniform.\n  // Best-effort extraction of error details; the main signal is response.ok / status.\n  let responseData: ApiResponse;\n  try {\n    responseData = (await response.json()) as ApiResponse;\n  } catch (err) {\n    throw ERROR_FACTORY.create(ErrorCode.FID_REGISTRATION_FAILED, {\n      errorInfo: response.statusText\n    });\n  }\n  const message = responseData.error?.message ?? response.statusText;\n  throw ERROR_FACTORY.create(ErrorCode.FID_REGISTRATION_FAILED, {\n    errorInfo: message\n  });\n}\n\n/**\n * Deletes an FCM Web registration via DeleteRegistration using the Firebase Installation ID (FID).\n */\nexport async function requestDeleteRegistration(\n  firebaseDependencies: FirebaseInternalDependencies,\n  fid: string\n): Promise<void> {\n  const headers = await getHeaders(firebaseDependencies);\n\n  const options: RequestInit = {\n    method: 'DELETE',\n    headers\n  };\n\n  let response: Response;\n  try {\n    response = await fetch(\n      `${getEndpoint(firebaseDependencies.appConfig)}/${fid}`,\n      options\n    );\n  } catch (err) {\n    throw ERROR_FACTORY.create(ErrorCode.FID_UNREGISTER_FAILED, {\n      errorInfo: (err as Error)?.toString()\n    });\n  }\n\n  if (response.ok) {\n    return;\n  }\n\n  // Best-effort parse error details; surface uniform error code.\n  try {\n    const responseData = (await response.json()) as ApiResponse;\n    const message = responseData.error?.message ?? response.statusText;\n    throw message;\n  } catch (err) {\n    // If parsing failed, fall back to status text.\n    throw ERROR_FACTORY.create(ErrorCode.FID_UNREGISTER_FAILED, {\n      errorInfo:\n        (typeof err === 'string' && err) ||\n        response.statusText ||\n        (err as Error)?.toString()\n    });\n  }\n}\n\n/**\n * Parses a successful CreateRegistration body. The backend must return JSON with a non-empty\n * string `name`: a resource name `projects/{projectId}/registrations/{fid}`\n */\nasync function parseCreateRegistrationSuccessFid(\n  response: Response\n): Promise<string> {\n  const text = await response.text();\n  if (!text.trim()) {\n    throw ERROR_FACTORY.create(ErrorCode.FID_REGISTRATION_FAILED, {\n      errorInfo: 'CreateRegistration succeeded but response body is empty'\n    });\n  }\n  let data: ApiResponse;\n  try {\n    data = JSON.parse(text) as ApiResponse;\n  } catch {\n    throw ERROR_FACTORY.create(ErrorCode.FID_REGISTRATION_FAILED, {\n      errorInfo:\n        'CreateRegistration succeeded but response body is not valid JSON'\n    });\n  }\n  const name = data.name;\n  if (typeof name !== 'string' || name.length === 0) {\n    throw ERROR_FACTORY.create(ErrorCode.FID_REGISTRATION_FAILED, {\n      errorInfo:\n        'CreateRegistration succeeded but response did not include a non-empty name'\n    });\n  }\n  return parseFidFromRegistrationResourceName(name);\n}\n\nconst REGISTRATIONS_NAME_SEGMENT = '/registrations/';\n\n/** Extracts the Firebase Installation ID from CreateRegistration `name` (resource path). */\nfunction parseFidFromRegistrationResourceName(name: string): string {\n  const segmentIndex = name.indexOf(REGISTRATIONS_NAME_SEGMENT);\n  if (segmentIndex !== -1) {\n    const fid = name.slice(segmentIndex + REGISTRATIONS_NAME_SEGMENT.length);\n    if (fid.length > 0) {\n      return fid;\n    }\n  }\n  throw ERROR_FACTORY.create(ErrorCode.FID_REGISTRATION_FAILED, {\n    errorInfo:\n      'CreateRegistration succeeded but response name is not a valid registration resource name'\n  });\n}\n\nexport async function requestUpdateToken(\n  firebaseDependencies: FirebaseInternalDependencies,\n  tokenDetails: TokenDetails\n): Promise<string> {\n  const headers = await getHeaders(firebaseDependencies);\n  const body = getBody(\n    tokenDetails.subscriptionOptions!,\n    firebaseDependencies.appConfig.appName,\n    /* includeSdkVersion= */ false\n  );\n\n  const updateOptions = {\n    method: 'PATCH',\n    headers,\n    body: JSON.stringify(body)\n  };\n\n  let responseData: ApiResponse;\n  try {\n    const response = await fetch(\n      `${getEndpoint(firebaseDependencies.appConfig)}/${tokenDetails.token}`,\n      updateOptions\n    );\n    responseData = await response.json();\n  } catch (err) {\n    throw ERROR_FACTORY.create(ErrorCode.TOKEN_UPDATE_FAILED, {\n      errorInfo: (err as Error)?.toString()\n    });\n  }\n\n  if (responseData.error) {\n    const message = responseData.error.message;\n    throw ERROR_FACTORY.create(ErrorCode.TOKEN_UPDATE_FAILED, {\n      errorInfo: message\n    });\n  }\n\n  if (!responseData.token) {\n    throw ERROR_FACTORY.create(ErrorCode.TOKEN_UPDATE_NO_TOKEN);\n  }\n\n  return responseData.token;\n}\n\nexport async function requestDeleteToken(\n  firebaseDependencies: FirebaseInternalDependencies,\n  token: string\n): Promise<void> {\n  const headers = await getHeaders(firebaseDependencies);\n\n  const unsubscribeOptions = {\n    method: 'DELETE',\n    headers\n  };\n\n  try {\n    const response = await fetch(\n      `${getEndpoint(firebaseDependencies.appConfig)}/${token}`,\n      unsubscribeOptions\n    );\n    const responseData: ApiResponse = await response.json();\n    if (responseData.error) {\n      const message = responseData.error.message;\n      throw ERROR_FACTORY.create(ErrorCode.TOKEN_UNSUBSCRIBE_FAILED, {\n        errorInfo: message\n      });\n    }\n  } catch (err) {\n    throw ERROR_FACTORY.create(ErrorCode.TOKEN_UNSUBSCRIBE_FAILED, {\n      errorInfo: (err as Error)?.toString()\n    });\n  }\n}\n\n/**\n * Re-runs `operation` when it throws, with exponential backoff between attempts.\n * Rethrows the last error if all attempts fail.\n */\nasync function fetchWithExponentialRetry(\n  operation: () => Promise<Response>,\n  maxAttempts: number,\n  baseBackoffMs: number\n): Promise<Response> {\n  let lastError: unknown;\n  for (let attempt = 0; attempt < maxAttempts; attempt++) {\n    try {\n      return await operation();\n    } catch (err) {\n      lastError = err;\n      if (attempt < maxAttempts - 1) {\n        const delayMs = baseBackoffMs * Math.pow(2, attempt);\n        await new Promise<void>(resolve => setTimeout(resolve, delayMs));\n      }\n    }\n  }\n  throw lastError;\n}\n\nfunction getEndpoint({ projectId }: AppConfig): string {\n  return `${ENDPOINT}/projects/${projectId!}/registrations`;\n}\n\nasync function getHeaders({\n  appConfig,\n  installations\n}: FirebaseInternalDependencies): Promise<Headers> {\n  const authToken = await installations.getToken();\n\n  return new Headers({\n    'Content-Type': 'application/json',\n    Accept: 'application/json',\n    'x-goog-api-key': appConfig.apiKey!,\n    'x-goog-firebase-installations-auth': `FIS ${authToken}`\n  });\n}\n\n/**\n * Hostname for the registering web client (e.g. `www.example.com`), or the app name\n * (`appNameFallback`) when the scope cannot be resolved (e.g. some test environments).\n */\nexport function getRegistrationOrigin(\n  swScope: string,\n  appNameFallback: string\n): string {\n  try {\n    if (/^[a-zA-Z][a-zA-Z\\d+\\-.]*:/.test(swScope)) {\n      return new URL(swScope).host;\n    }\n  } catch {\n    // Fall through to relative-scope handling.\n  }\n  try {\n    if (typeof self !== 'undefined' && self.location?.href) {\n      return new URL(swScope, self.location.origin).host;\n    }\n  } catch {\n    // Fall through.\n  }\n  if (typeof self !== 'undefined' && self.location?.host) {\n    return self.location.host;\n  }\n  return appNameFallback;\n}\n\nfunction getBody(\n  { p256dh, auth, endpoint, vapidKey, swScope }: SubscriptionOptions,\n  appNameFallback: string,\n  includeSdkVersion: boolean\n): ApiRequestBody {\n  const body: ApiRequestBody = {\n    web: {\n      origin: getRegistrationOrigin(swScope, appNameFallback),\n      endpoint,\n      auth,\n      p256dh\n    }\n  };\n\n  if (includeSdkVersion) {\n    // eslint-disable-next-line camelcase\n    body.fcm_sdk_version = fcmSdkVersion;\n  }\n\n  if (vapidKey !== DEFAULT_VAPID_KEY) {\n    body.web.applicationPubKey = vapidKey;\n  }\n\n  return body;\n}\n","/**\n * @license\n * Copyright 2019 Google 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  SubscriptionOptions,\n  TokenDetails\n} from '../interfaces/registration-details';\nimport {\n  arrayToBase64,\n  base64ToArray\n} from '../helpers/array-base64-translator';\nimport {\n  dbGet,\n  dbGetFidRegistration,\n  dbRemove,\n  dbRemoveFidRegistration,\n  dbSet\n} from './idb-manager';\nimport {\n  requestDeleteRegistration,\n  requestDeleteToken,\n  requestGetToken,\n  requestUpdateToken\n} from './requests';\n\nimport { FirebaseInternalDependencies } from '../interfaces/internal-dependencies';\nimport { MessagingService } from '../messaging-service';\n\n// UpdateRegistration will be called once every week.\nconst TOKEN_EXPIRATION_MS = 7 * 24 * 60 * 60 * 1000; // 7 days\n\nexport async function getTokenInternal(\n  messaging: MessagingService\n): Promise<string> {\n  const pushSubscription = await getPushSubscription(\n    messaging.swRegistration!,\n    messaging.vapidKey!\n  );\n\n  const subscriptionOptions: SubscriptionOptions = {\n    vapidKey: messaging.vapidKey!,\n    swScope: messaging.swRegistration!.scope,\n    endpoint: pushSubscription.endpoint,\n    auth: arrayToBase64(pushSubscription.getKey('auth')!),\n    p256dh: arrayToBase64(pushSubscription.getKey('p256dh')!)\n  };\n\n  const tokenDetails = await dbGet(messaging.firebaseDependencies);\n  if (!tokenDetails) {\n    // No token, get a new one.\n    return getNewToken(messaging.firebaseDependencies, subscriptionOptions);\n  } else if (\n    !isTokenValid(tokenDetails.subscriptionOptions!, subscriptionOptions)\n  ) {\n    // Invalid token, get a new one.\n    try {\n      await requestDeleteToken(\n        messaging.firebaseDependencies!,\n        tokenDetails.token\n      );\n    } catch (e) {\n      // Suppress errors because of #2364\n      console.warn(e);\n    }\n\n    return getNewToken(messaging.firebaseDependencies!, subscriptionOptions);\n  } else if (Date.now() >= tokenDetails.createTime + TOKEN_EXPIRATION_MS) {\n    // Weekly token refresh\n    return updateToken(messaging, {\n      token: tokenDetails.token,\n      createTime: Date.now(),\n      subscriptionOptions\n    });\n  } else {\n    // Valid token, nothing to do.\n    return tokenDetails.token;\n  }\n}\n\n/**\n * Legacy getToken() path: there is a token row in IndexedDB. Revoke it with FCM, drop the row, and\n * clear any leftover FID registration metadata (apps may mix APIs).\n */\nasync function revokeLegacyFcmTokenAndClearCaches(\n  messaging: MessagingService,\n  tokenDetails: TokenDetails\n): Promise<void> {\n  await requestDeleteToken(messaging.firebaseDependencies, tokenDetails.token);\n  await dbRemove(messaging.firebaseDependencies);\n  await removeFidRegistrationBestEffort(messaging.firebaseDependencies);\n}\n\n/**\n * No legacy token row: the client may only have FID-based registration (register() flow). If so,\n * delete that registration on the server, always scrub local FID metadata, then surface\n * onUnregistered when we actually had an FID.\n */\nasync function revokeFidRegistrationIfStored(\n  messaging: MessagingService\n): Promise<void> {\n  const stored = await dbGetFidRegistration(\n    messaging.firebaseDependencies\n  ).catch(() => undefined);\n  const fid = stored?.fid;\n\n  if (fid) {\n    await requestDeleteRegistration(messaging.firebaseDependencies, fid);\n  }\n\n  await removeFidRegistrationBestEffort(messaging.firebaseDependencies);\n\n  if (fid) {\n    notifyOnUnregistered(messaging, fid);\n  }\n}\n\n/**\n * Revokes the app's FCM registration: legacy token (getToken/deleteToken) and/or FID-based\n * registration (register/unregister), clears local caches, notifies onUnregistered when a stored\n * FID existed, then unsubscribes the push subscription when present.\n */\nexport async function revokeRegistrationInternal(\n  messaging: MessagingService\n): Promise<boolean> {\n  const tokenDetails = await dbGet(messaging.firebaseDependencies);\n  if (tokenDetails) {\n    await revokeLegacyFcmTokenAndClearCaches(messaging, tokenDetails);\n  } else {\n    await revokeFidRegistrationIfStored(messaging);\n  }\n\n  // Unsubscribe from the push subscription.\n  const pushSubscription =\n    await messaging.swRegistration!.pushManager.getSubscription();\n  if (pushSubscription) {\n    return pushSubscription.unsubscribe();\n  }\n\n  // If there's no SW, consider it a success.\n  return true;\n}\n\nasync function updateToken(\n  messaging: MessagingService,\n  tokenDetails: TokenDetails\n): Promise<string> {\n  try {\n    const updatedToken = await requestUpdateToken(\n      messaging.firebaseDependencies,\n      tokenDetails\n    );\n\n    const updatedTokenDetails: TokenDetails = {\n      ...tokenDetails,\n      token: updatedToken,\n      createTime: Date.now()\n    };\n\n    await dbSet(messaging.firebaseDependencies, updatedTokenDetails);\n    return updatedToken;\n  } catch (e) {\n    throw e;\n  }\n}\n\nasync function getNewToken(\n  firebaseDependencies: FirebaseInternalDependencies,\n  subscriptionOptions: SubscriptionOptions\n): Promise<string> {\n  const token = await requestGetToken(\n    firebaseDependencies,\n    subscriptionOptions\n  );\n  const tokenDetails: TokenDetails = {\n    token,\n    createTime: Date.now(),\n    subscriptionOptions\n  };\n  await dbSet(firebaseDependencies, tokenDetails);\n  return tokenDetails.token;\n}\n\n/**\n * Gets a PushSubscription for the current user.\n */\nasync function getPushSubscription(\n  swRegistration: ServiceWorkerRegistration,\n  vapidKey: string\n): Promise<PushSubscription> {\n  const subscription = await swRegistration.pushManager.getSubscription();\n  if (subscription) {\n    return subscription;\n  }\n\n  return swRegistration.pushManager.subscribe({\n    userVisibleOnly: true,\n    // Chrome <= 75 doesn't support base64-encoded VAPID key. For backward compatibility, VAPID key\n    // submitted to pushManager#subscribe must be of type Uint8Array.\n    applicationServerKey: base64ToArray(vapidKey)\n  });\n}\n\n/**\n * Checks if the saved tokenDetails object matches the configuration provided.\n */\nfunction isTokenValid(\n  dbOptions: SubscriptionOptions,\n  currentOptions: SubscriptionOptions\n): boolean {\n  const isVapidKeyEqual = currentOptions.vapidKey === dbOptions.vapidKey;\n  const isEndpointEqual = currentOptions.endpoint === dbOptions.endpoint;\n  const isAuthEqual = currentOptions.auth === dbOptions.auth;\n  const isP256dhEqual = currentOptions.p256dh === dbOptions.p256dh;\n\n  return isVapidKeyEqual && isEndpointEqual && isAuthEqual && isP256dhEqual;\n}\n\n/** Clears FID registration metadata; apps may mix legacy getToken() with FID register/unregister. */\nasync function removeFidRegistrationBestEffort(\n  firebaseDependencies: FirebaseInternalDependencies\n): Promise<void> {\n  try {\n    await dbRemoveFidRegistration(firebaseDependencies);\n  } catch {\n    // Ignore.\n  }\n}\n\nexport function notifyOnRegistered(\n  messaging: MessagingService,\n  fid: string\n): void {\n  const handler = messaging.onRegisteredHandler;\n  if (!handler) {\n    return;\n  }\n  if (typeof handler === 'function') {\n    handler(fid);\n  } else {\n    handler.next(fid);\n  }\n}\n\nexport function notifyOnUnregistered(\n  messaging: MessagingService,\n  fid: string\n): void {\n  const handler = messaging.onUnregisteredHandler;\n  if (!handler) {\n    return;\n  }\n  if (typeof handler === 'function') {\n    handler(fid);\n  } else {\n    handler.next(fid);\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 { DEFAULT_VAPID_KEY } from '../util/constants';\nimport { MessagingService } from '../messaging-service';\n\nexport async function updateVapidKey(\n  messaging: MessagingService,\n  vapidKey?: string | undefined\n): Promise<void> {\n  if (!!vapidKey) {\n    messaging.vapidKey = vapidKey;\n  } else if (!messaging.vapidKey) {\n    messaging.vapidKey = DEFAULT_VAPID_KEY;\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 c