File Explorer

1'use strict'2 3const { kConstruct } = require('./symbols')4const { Cache } = require('./cache')5const { webidl } = require('../fetch/webidl')6const { kEnumerableProperty } = require('../../core/util')7 8class CacheStorage {9  /**10   * @see https://w3c.github.io/ServiceWorker/#dfn-relevant-name-to-cache-map11   * @type {Map<string, import('./cache').requestResponseList}12   */13  #caches = new Map()14 15  constructor () {16    if (arguments[0] !== kConstruct) {17      webidl.illegalConstructor()18    }19 20    webidl.util.markAsUncloneable(this)21  }22 23  async match (request, options = {}) {24    webidl.brandCheck(this, CacheStorage)25    webidl.argumentLengthCheck(arguments, 1, 'CacheStorage.match')26 27    request = webidl.converters.RequestInfo(request)28    options = webidl.converters.MultiCacheQueryOptions(options)29 30    // 1.31    if (options.cacheName != null) {32      // 1.1.1.133      if (this.#caches.has(options.cacheName)) {34        // 1.1.1.1.135        const cacheList = this.#caches.get(options.cacheName)36        const cache = new Cache(kConstruct, cacheList)37 38        return await cache.match(request, options)39      }40    } else { // 2.41      // 2.242      for (const cacheList of this.#caches.values()) {43        const cache = new Cache(kConstruct, cacheList)44 45        // 2.2.1.246        const response = await cache.match(request, options)47 48        if (response !== undefined) {49          return response50        }51      }52    }53  }54 55  /**56   * @see https://w3c.github.io/ServiceWorker/#cache-storage-has57   * @param {string} cacheName58   * @returns {Promise<boolean>}59   */60  async has (cacheName) {61    webidl.brandCheck(this, CacheStorage)62 63    const prefix = 'CacheStorage.has'64    webidl.argumentLengthCheck(arguments, 1, prefix)65 66    cacheName = webidl.converters.DOMString(cacheName, prefix, 'cacheName')67 68    // 2.1.169    // 2.270    return this.#caches.has(cacheName)71  }72 73  /**74   * @see https://w3c.github.io/ServiceWorker/#dom-cachestorage-open75   * @param {string} cacheName76   * @returns {Promise<Cache>}77   */78  async open (cacheName) {79    webidl.brandCheck(this, CacheStorage)80 81    const prefix = 'CacheStorage.open'82    webidl.argumentLengthCheck(arguments, 1, prefix)83 84    cacheName = webidl.converters.DOMString(cacheName, prefix, 'cacheName')85 86    // 2.187    if (this.#caches.has(cacheName)) {88      // await caches.open('v1') !== await caches.open('v1')89 90      // 2.1.191      const cache = this.#caches.get(cacheName)92 93      // 2.1.1.194      return new Cache(kConstruct, cache)95    }96 97    // 2.298    const cache = []99 100    // 2.3101    this.#caches.set(cacheName, cache)102 103    // 2.4104    return new Cache(kConstruct, cache)105  }106 107  /**108   * @see https://w3c.github.io/ServiceWorker/#cache-storage-delete109   * @param {string} cacheName110   * @returns {Promise<boolean>}111   */112  async delete (cacheName) {113    webidl.brandCheck(this, CacheStorage)114 115    const prefix = 'CacheStorage.delete'116    webidl.argumentLengthCheck(arguments, 1, prefix)117 118    cacheName = webidl.converters.DOMString(cacheName, prefix, 'cacheName')119 120    return this.#caches.delete(cacheName)121  }122 123  /**124   * @see https://w3c.github.io/ServiceWorker/#cache-storage-keys125   * @returns {Promise<string[]>}126   */127  async keys () {128    webidl.brandCheck(this, CacheStorage)129 130    // 2.1131    const keys = this.#caches.keys()132 133    // 2.2134    return [...keys]135  }136}137 138Object.defineProperties(CacheStorage.prototype, {139  [Symbol.toStringTag]: {140    value: 'CacheStorage',141    configurable: true142  },143  match: kEnumerableProperty,144  has: kEnumerableProperty,145  open: kEnumerableProperty,146  delete: kEnumerableProperty,147  keys: kEnumerableProperty148})149 150module.exports = {151  CacheStorage152}153