mirror of
https://github.com/idanoo/GoScrobble.git
synced 2024-11-25 09:55:15 +00:00
819 lines
25 KiB
JavaScript
819 lines
25 KiB
JavaScript
this.workbox = this.workbox || {};
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this.workbox.backgroundSync = (function (exports, WorkboxError_js, logger_js, assert_js, getFriendlyURL_js, DBWrapper_js) {
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'use strict';
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try {
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self['workbox:background-sync:5.1.4'] && _();
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} catch (e) {}
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/*
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Copyright 2018 Google LLC
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Use of this source code is governed by an MIT-style
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license that can be found in the LICENSE file or at
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https://opensource.org/licenses/MIT.
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*/
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const DB_VERSION = 3;
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const DB_NAME = 'workbox-background-sync';
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const OBJECT_STORE_NAME = 'requests';
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const INDEXED_PROP = 'queueName';
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/**
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* A class to manage storing requests from a Queue in IndexedDB,
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* indexed by their queue name for easier access.
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*
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* @private
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*/
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class QueueStore {
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/**
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* Associates this instance with a Queue instance, so entries added can be
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* identified by their queue name.
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*
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* @param {string} queueName
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* @private
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*/
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constructor(queueName) {
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this._queueName = queueName;
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this._db = new DBWrapper_js.DBWrapper(DB_NAME, DB_VERSION, {
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onupgradeneeded: this._upgradeDb
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});
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}
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/**
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* Append an entry last in the queue.
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*
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* @param {Object} entry
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* @param {Object} entry.requestData
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* @param {number} [entry.timestamp]
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* @param {Object} [entry.metadata]
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* @private
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*/
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async pushEntry(entry) {
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{
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assert_js.assert.isType(entry, 'object', {
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moduleName: 'workbox-background-sync',
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className: 'QueueStore',
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funcName: 'pushEntry',
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paramName: 'entry'
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});
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assert_js.assert.isType(entry.requestData, 'object', {
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moduleName: 'workbox-background-sync',
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className: 'QueueStore',
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funcName: 'pushEntry',
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paramName: 'entry.requestData'
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});
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} // Don't specify an ID since one is automatically generated.
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delete entry.id;
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entry.queueName = this._queueName;
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await this._db.add(OBJECT_STORE_NAME, entry);
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}
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/**
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* Prepend an entry first in the queue.
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*
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* @param {Object} entry
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* @param {Object} entry.requestData
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* @param {number} [entry.timestamp]
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* @param {Object} [entry.metadata]
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* @private
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*/
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async unshiftEntry(entry) {
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{
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assert_js.assert.isType(entry, 'object', {
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moduleName: 'workbox-background-sync',
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className: 'QueueStore',
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funcName: 'unshiftEntry',
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paramName: 'entry'
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});
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assert_js.assert.isType(entry.requestData, 'object', {
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moduleName: 'workbox-background-sync',
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className: 'QueueStore',
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funcName: 'unshiftEntry',
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paramName: 'entry.requestData'
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});
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}
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const [firstEntry] = await this._db.getAllMatching(OBJECT_STORE_NAME, {
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count: 1
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});
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if (firstEntry) {
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// Pick an ID one less than the lowest ID in the object store.
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entry.id = firstEntry.id - 1;
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} else {
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// Otherwise let the auto-incrementor assign the ID.
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delete entry.id;
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}
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entry.queueName = this._queueName;
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await this._db.add(OBJECT_STORE_NAME, entry);
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}
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/**
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* Removes and returns the last entry in the queue matching the `queueName`.
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*
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* @return {Promise<Object>}
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* @private
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*/
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async popEntry() {
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return this._removeEntry({
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direction: 'prev'
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});
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}
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/**
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* Removes and returns the first entry in the queue matching the `queueName`.
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*
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* @return {Promise<Object>}
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* @private
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*/
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async shiftEntry() {
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return this._removeEntry({
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direction: 'next'
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});
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}
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/**
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* Returns all entries in the store matching the `queueName`.
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*
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* @param {Object} options See {@link module:workbox-background-sync.Queue~getAll}
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* @return {Promise<Array<Object>>}
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* @private
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*/
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async getAll() {
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return await this._db.getAllMatching(OBJECT_STORE_NAME, {
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index: INDEXED_PROP,
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query: IDBKeyRange.only(this._queueName)
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});
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}
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/**
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* Deletes the entry for the given ID.
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*
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* WARNING: this method does not ensure the deleted enry belongs to this
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* queue (i.e. matches the `queueName`). But this limitation is acceptable
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* as this class is not publicly exposed. An additional check would make
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* this method slower than it needs to be.
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*
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* @private
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* @param {number} id
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*/
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async deleteEntry(id) {
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await this._db.delete(OBJECT_STORE_NAME, id);
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}
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/**
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* Removes and returns the first or last entry in the queue (based on the
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* `direction` argument) matching the `queueName`.
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*
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* @return {Promise<Object>}
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* @private
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*/
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async _removeEntry({
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direction
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}) {
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const [entry] = await this._db.getAllMatching(OBJECT_STORE_NAME, {
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direction,
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index: INDEXED_PROP,
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query: IDBKeyRange.only(this._queueName),
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count: 1
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});
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if (entry) {
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await this.deleteEntry(entry.id);
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return entry;
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}
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}
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/**
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* Upgrades the database given an `upgradeneeded` event.
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*
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* @param {Event} event
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* @private
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*/
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_upgradeDb(event) {
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const db = event.target.result;
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if (event.oldVersion > 0 && event.oldVersion < DB_VERSION) {
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if (db.objectStoreNames.contains(OBJECT_STORE_NAME)) {
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db.deleteObjectStore(OBJECT_STORE_NAME);
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}
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}
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const objStore = db.createObjectStore(OBJECT_STORE_NAME, {
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autoIncrement: true,
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keyPath: 'id'
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});
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objStore.createIndex(INDEXED_PROP, INDEXED_PROP, {
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unique: false
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});
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}
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}
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/*
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Copyright 2018 Google LLC
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Use of this source code is governed by an MIT-style
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license that can be found in the LICENSE file or at
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https://opensource.org/licenses/MIT.
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*/
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const serializableProperties = ['method', 'referrer', 'referrerPolicy', 'mode', 'credentials', 'cache', 'redirect', 'integrity', 'keepalive'];
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/**
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* A class to make it easier to serialize and de-serialize requests so they
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* can be stored in IndexedDB.
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*
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* @private
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*/
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class StorableRequest {
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/**
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* Accepts an object of request data that can be used to construct a
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* `Request` but can also be stored in IndexedDB.
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*
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* @param {Object} requestData An object of request data that includes the
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* `url` plus any relevant properties of
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* [requestInit]{@link https://fetch.spec.whatwg.org/#requestinit}.
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* @private
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*/
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constructor(requestData) {
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{
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assert_js.assert.isType(requestData, 'object', {
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moduleName: 'workbox-background-sync',
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className: 'StorableRequest',
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funcName: 'constructor',
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paramName: 'requestData'
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});
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assert_js.assert.isType(requestData.url, 'string', {
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moduleName: 'workbox-background-sync',
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className: 'StorableRequest',
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funcName: 'constructor',
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paramName: 'requestData.url'
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});
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} // If the request's mode is `navigate`, convert it to `same-origin` since
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// navigation requests can't be constructed via script.
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if (requestData['mode'] === 'navigate') {
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requestData['mode'] = 'same-origin';
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}
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this._requestData = requestData;
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}
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/**
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* Converts a Request object to a plain object that can be structured
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* cloned or JSON-stringified.
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*
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* @param {Request} request
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* @return {Promise<StorableRequest>}
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*
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* @private
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*/
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static async fromRequest(request) {
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const requestData = {
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url: request.url,
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headers: {}
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}; // Set the body if present.
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if (request.method !== 'GET') {
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// Use ArrayBuffer to support non-text request bodies.
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// NOTE: we can't use Blobs becuse Safari doesn't support storing
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// Blobs in IndexedDB in some cases:
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// https://github.com/dfahlander/Dexie.js/issues/618#issuecomment-398348457
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requestData.body = await request.clone().arrayBuffer();
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} // Convert the headers from an iterable to an object.
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for (const [key, value] of request.headers.entries()) {
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requestData.headers[key] = value;
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} // Add all other serializable request properties
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for (const prop of serializableProperties) {
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if (request[prop] !== undefined) {
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requestData[prop] = request[prop];
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}
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}
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return new StorableRequest(requestData);
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}
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/**
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* Returns a deep clone of the instances `_requestData` object.
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*
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* @return {Object}
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*
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* @private
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*/
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toObject() {
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const requestData = Object.assign({}, this._requestData);
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requestData.headers = Object.assign({}, this._requestData.headers);
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if (requestData.body) {
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requestData.body = requestData.body.slice(0);
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}
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return requestData;
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}
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/**
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* Converts this instance to a Request.
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*
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* @return {Request}
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*
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* @private
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*/
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toRequest() {
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return new Request(this._requestData.url, this._requestData);
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}
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/**
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* Creates and returns a deep clone of the instance.
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*
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* @return {StorableRequest}
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*
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* @private
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*/
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clone() {
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return new StorableRequest(this.toObject());
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}
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}
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/*
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Copyright 2018 Google LLC
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Use of this source code is governed by an MIT-style
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license that can be found in the LICENSE file or at
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https://opensource.org/licenses/MIT.
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*/
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const TAG_PREFIX = 'workbox-background-sync';
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const MAX_RETENTION_TIME = 60 * 24 * 7; // 7 days in minutes
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const queueNames = new Set();
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/**
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* Converts a QueueStore entry into the format exposed by Queue. This entails
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* converting the request data into a real request and omitting the `id` and
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* `queueName` properties.
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*
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* @param {Object} queueStoreEntry
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* @return {Object}
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* @private
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*/
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const convertEntry = queueStoreEntry => {
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const queueEntry = {
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request: new StorableRequest(queueStoreEntry.requestData).toRequest(),
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timestamp: queueStoreEntry.timestamp
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};
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if (queueStoreEntry.metadata) {
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queueEntry.metadata = queueStoreEntry.metadata;
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}
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return queueEntry;
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};
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/**
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* A class to manage storing failed requests in IndexedDB and retrying them
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* later. All parts of the storing and replaying process are observable via
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* callbacks.
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*
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* @memberof module:workbox-background-sync
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*/
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class Queue {
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/**
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* Creates an instance of Queue with the given options
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*
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* @param {string} name The unique name for this queue. This name must be
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* unique as it's used to register sync events and store requests
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* in IndexedDB specific to this instance. An error will be thrown if
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* a duplicate name is detected.
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* @param {Object} [options]
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* @param {Function} [options.onSync] A function that gets invoked whenever
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* the 'sync' event fires. The function is invoked with an object
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* containing the `queue` property (referencing this instance), and you
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* can use the callback to customize the replay behavior of the queue.
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* When not set the `replayRequests()` method is called.
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* Note: if the replay fails after a sync event, make sure you throw an
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* error, so the browser knows to retry the sync event later.
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* @param {number} [options.maxRetentionTime=7 days] The amount of time (in
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* minutes) a request may be retried. After this amount of time has
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* passed, the request will be deleted from the queue.
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*/
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constructor(name, {
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onSync,
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maxRetentionTime
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} = {}) {
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this._syncInProgress = false;
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this._requestsAddedDuringSync = false; // Ensure the store name is not already being used
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if (queueNames.has(name)) {
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throw new WorkboxError_js.WorkboxError('duplicate-queue-name', {
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name
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});
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} else {
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queueNames.add(name);
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}
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this._name = name;
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this._onSync = onSync || this.replayRequests;
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this._maxRetentionTime = maxRetentionTime || MAX_RETENTION_TIME;
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this._queueStore = new QueueStore(this._name);
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this._addSyncListener();
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}
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/**
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* @return {string}
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*/
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get name() {
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return this._name;
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}
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/**
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* Stores the passed request in IndexedDB (with its timestamp and any
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* metadata) at the end of the queue.
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*
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* @param {Object} entry
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* @param {Request} entry.request The request to store in the queue.
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* @param {Object} [entry.metadata] Any metadata you want associated with the
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* stored request. When requests are replayed you'll have access to this
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* metadata object in case you need to modify the request beforehand.
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* @param {number} [entry.timestamp] The timestamp (Epoch time in
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* milliseconds) when the request was first added to the queue. This is
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* used along with `maxRetentionTime` to remove outdated requests. In
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* general you don't need to set this value, as it's automatically set
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* for you (defaulting to `Date.now()`), but you can update it if you
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* don't want particular requests to expire.
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*/
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async pushRequest(entry) {
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{
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assert_js.assert.isType(entry, 'object', {
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moduleName: 'workbox-background-sync',
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className: 'Queue',
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funcName: 'pushRequest',
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paramName: 'entry'
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});
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assert_js.assert.isInstance(entry.request, Request, {
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moduleName: 'workbox-background-sync',
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className: 'Queue',
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funcName: 'pushRequest',
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paramName: 'entry.request'
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});
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}
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await this._addRequest(entry, 'push');
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}
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/**
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* Stores the passed request in IndexedDB (with its timestamp and any
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* metadata) at the beginning of the queue.
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*
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* @param {Object} entry
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* @param {Request} entry.request The request to store in the queue.
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* @param {Object} [entry.metadata] Any metadata you want associated with the
|
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* stored request. When requests are replayed you'll have access to this
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* metadata object in case you need to modify the request beforehand.
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|
* @param {number} [entry.timestamp] The timestamp (Epoch time in
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* milliseconds) when the request was first added to the queue. This is
|
|
* used along with `maxRetentionTime` to remove outdated requests. In
|
|
* general you don't need to set this value, as it's automatically set
|
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* for you (defaulting to `Date.now()`), but you can update it if you
|
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* don't want particular requests to expire.
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*/
|
|
|
|
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async unshiftRequest(entry) {
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{
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assert_js.assert.isType(entry, 'object', {
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moduleName: 'workbox-background-sync',
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className: 'Queue',
|
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funcName: 'unshiftRequest',
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paramName: 'entry'
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});
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assert_js.assert.isInstance(entry.request, Request, {
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moduleName: 'workbox-background-sync',
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className: 'Queue',
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funcName: 'unshiftRequest',
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paramName: 'entry.request'
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});
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}
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await this._addRequest(entry, 'unshift');
|
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}
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|
/**
|
|
* Removes and returns the last request in the queue (along with its
|
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* timestamp and any metadata). The returned object takes the form:
|
|
* `{request, timestamp, metadata}`.
|
|
*
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* @return {Promise<Object>}
|
|
*/
|
|
|
|
|
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async popRequest() {
|
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return this._removeRequest('pop');
|
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}
|
|
/**
|
|
* Removes and returns the first request in the queue (along with its
|
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* timestamp and any metadata). The returned object takes the form:
|
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* `{request, timestamp, metadata}`.
|
|
*
|
|
* @return {Promise<Object>}
|
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*/
|
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|
|
|
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async shiftRequest() {
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return this._removeRequest('shift');
|
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}
|
|
/**
|
|
* Returns all the entries that have not expired (per `maxRetentionTime`).
|
|
* Any expired entries are removed from the queue.
|
|
*
|
|
* @return {Promise<Array<Object>>}
|
|
*/
|
|
|
|
|
|
async getAll() {
|
|
const allEntries = await this._queueStore.getAll();
|
|
const now = Date.now();
|
|
const unexpiredEntries = [];
|
|
|
|
for (const entry of allEntries) {
|
|
// Ignore requests older than maxRetentionTime. Call this function
|
|
// recursively until an unexpired request is found.
|
|
const maxRetentionTimeInMs = this._maxRetentionTime * 60 * 1000;
|
|
|
|
if (now - entry.timestamp > maxRetentionTimeInMs) {
|
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await this._queueStore.deleteEntry(entry.id);
|
|
} else {
|
|
unexpiredEntries.push(convertEntry(entry));
|
|
}
|
|
}
|
|
|
|
return unexpiredEntries;
|
|
}
|
|
/**
|
|
* Adds the entry to the QueueStore and registers for a sync event.
|
|
*
|
|
* @param {Object} entry
|
|
* @param {Request} entry.request
|
|
* @param {Object} [entry.metadata]
|
|
* @param {number} [entry.timestamp=Date.now()]
|
|
* @param {string} operation ('push' or 'unshift')
|
|
* @private
|
|
*/
|
|
|
|
|
|
async _addRequest({
|
|
request,
|
|
metadata,
|
|
timestamp = Date.now()
|
|
}, operation) {
|
|
const storableRequest = await StorableRequest.fromRequest(request.clone());
|
|
const entry = {
|
|
requestData: storableRequest.toObject(),
|
|
timestamp
|
|
}; // Only include metadata if it's present.
|
|
|
|
if (metadata) {
|
|
entry.metadata = metadata;
|
|
}
|
|
|
|
await this._queueStore[`${operation}Entry`](entry);
|
|
|
|
{
|
|
logger_js.logger.log(`Request for '${getFriendlyURL_js.getFriendlyURL(request.url)}' has ` + `been added to background sync queue '${this._name}'.`);
|
|
} // Don't register for a sync if we're in the middle of a sync. Instead,
|
|
// we wait until the sync is complete and call register if
|
|
// `this._requestsAddedDuringSync` is true.
|
|
|
|
|
|
if (this._syncInProgress) {
|
|
this._requestsAddedDuringSync = true;
|
|
} else {
|
|
await this.registerSync();
|
|
}
|
|
}
|
|
/**
|
|
* Removes and returns the first or last (depending on `operation`) entry
|
|
* from the QueueStore that's not older than the `maxRetentionTime`.
|
|
*
|
|
* @param {string} operation ('pop' or 'shift')
|
|
* @return {Object|undefined}
|
|
* @private
|
|
*/
|
|
|
|
|
|
async _removeRequest(operation) {
|
|
const now = Date.now();
|
|
const entry = await this._queueStore[`${operation}Entry`]();
|
|
|
|
if (entry) {
|
|
// Ignore requests older than maxRetentionTime. Call this function
|
|
// recursively until an unexpired request is found.
|
|
const maxRetentionTimeInMs = this._maxRetentionTime * 60 * 1000;
|
|
|
|
if (now - entry.timestamp > maxRetentionTimeInMs) {
|
|
return this._removeRequest(operation);
|
|
}
|
|
|
|
return convertEntry(entry);
|
|
} else {
|
|
return undefined;
|
|
}
|
|
}
|
|
/**
|
|
* Loops through each request in the queue and attempts to re-fetch it.
|
|
* If any request fails to re-fetch, it's put back in the same position in
|
|
* the queue (which registers a retry for the next sync event).
|
|
*/
|
|
|
|
|
|
async replayRequests() {
|
|
let entry;
|
|
|
|
while (entry = await this.shiftRequest()) {
|
|
try {
|
|
await fetch(entry.request.clone());
|
|
|
|
if ("dev" !== 'production') {
|
|
logger_js.logger.log(`Request for '${getFriendlyURL_js.getFriendlyURL(entry.request.url)}'` + `has been replayed in queue '${this._name}'`);
|
|
}
|
|
} catch (error) {
|
|
await this.unshiftRequest(entry);
|
|
|
|
{
|
|
logger_js.logger.log(`Request for '${getFriendlyURL_js.getFriendlyURL(entry.request.url)}'` + `failed to replay, putting it back in queue '${this._name}'`);
|
|
}
|
|
|
|
throw new WorkboxError_js.WorkboxError('queue-replay-failed', {
|
|
name: this._name
|
|
});
|
|
}
|
|
}
|
|
|
|
{
|
|
logger_js.logger.log(`All requests in queue '${this.name}' have successfully ` + `replayed; the queue is now empty!`);
|
|
}
|
|
}
|
|
/**
|
|
* Registers a sync event with a tag unique to this instance.
|
|
*/
|
|
|
|
|
|
async registerSync() {
|
|
if ('sync' in self.registration) {
|
|
try {
|
|
await self.registration.sync.register(`${TAG_PREFIX}:${this._name}`);
|
|
} catch (err) {
|
|
// This means the registration failed for some reason, possibly due to
|
|
// the user disabling it.
|
|
{
|
|
logger_js.logger.warn(`Unable to register sync event for '${this._name}'.`, err);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/**
|
|
* In sync-supporting browsers, this adds a listener for the sync event.
|
|
* In non-sync-supporting browsers, this will retry the queue on service
|
|
* worker startup.
|
|
*
|
|
* @private
|
|
*/
|
|
|
|
|
|
_addSyncListener() {
|
|
if ('sync' in self.registration) {
|
|
self.addEventListener('sync', event => {
|
|
if (event.tag === `${TAG_PREFIX}:${this._name}`) {
|
|
{
|
|
logger_js.logger.log(`Background sync for tag '${event.tag}'` + `has been received`);
|
|
}
|
|
|
|
const syncComplete = async () => {
|
|
this._syncInProgress = true;
|
|
let syncError;
|
|
|
|
try {
|
|
await this._onSync({
|
|
queue: this
|
|
});
|
|
} catch (error) {
|
|
syncError = error; // Rethrow the error. Note: the logic in the finally clause
|
|
// will run before this gets rethrown.
|
|
|
|
throw syncError;
|
|
} finally {
|
|
// New items may have been added to the queue during the sync,
|
|
// so we need to register for a new sync if that's happened...
|
|
// Unless there was an error during the sync, in which
|
|
// case the browser will automatically retry later, as long
|
|
// as `event.lastChance` is not true.
|
|
if (this._requestsAddedDuringSync && !(syncError && !event.lastChance)) {
|
|
await this.registerSync();
|
|
}
|
|
|
|
this._syncInProgress = false;
|
|
this._requestsAddedDuringSync = false;
|
|
}
|
|
};
|
|
|
|
event.waitUntil(syncComplete());
|
|
}
|
|
});
|
|
} else {
|
|
{
|
|
logger_js.logger.log(`Background sync replaying without background sync event`);
|
|
} // If the browser doesn't support background sync, retry
|
|
// every time the service worker starts up as a fallback.
|
|
|
|
|
|
this._onSync({
|
|
queue: this
|
|
});
|
|
}
|
|
}
|
|
/**
|
|
* Returns the set of queue names. This is primarily used to reset the list
|
|
* of queue names in tests.
|
|
*
|
|
* @return {Set}
|
|
*
|
|
* @private
|
|
*/
|
|
|
|
|
|
static get _queueNames() {
|
|
return queueNames;
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
Copyright 2018 Google LLC
|
|
|
|
Use of this source code is governed by an MIT-style
|
|
license that can be found in the LICENSE file or at
|
|
https://opensource.org/licenses/MIT.
|
|
*/
|
|
/**
|
|
* A class implementing the `fetchDidFail` lifecycle callback. This makes it
|
|
* easier to add failed requests to a background sync Queue.
|
|
*
|
|
* @memberof module:workbox-background-sync
|
|
*/
|
|
|
|
class BackgroundSyncPlugin {
|
|
/**
|
|
* @param {string} name See the [Queue]{@link module:workbox-background-sync.Queue}
|
|
* documentation for parameter details.
|
|
* @param {Object} [options] See the
|
|
* [Queue]{@link module:workbox-background-sync.Queue} documentation for
|
|
* parameter details.
|
|
*/
|
|
constructor(name, options) {
|
|
/**
|
|
* @param {Object} options
|
|
* @param {Request} options.request
|
|
* @private
|
|
*/
|
|
this.fetchDidFail = async ({
|
|
request
|
|
}) => {
|
|
await this._queue.pushRequest({
|
|
request
|
|
});
|
|
};
|
|
|
|
this._queue = new Queue(name, options);
|
|
}
|
|
|
|
}
|
|
|
|
exports.BackgroundSyncPlugin = BackgroundSyncPlugin;
|
|
exports.Queue = Queue;
|
|
|
|
return exports;
|
|
|
|
}({}, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private));
|
|
//# sourceMappingURL=workbox-background-sync.dev.js.map
|