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Diffstat (limited to 'devtools/server/actors/resources/storage/indexed-db.js')
| -rw-r--r-- | devtools/server/actors/resources/storage/indexed-db.js | 984 |
1 files changed, 984 insertions, 0 deletions
diff --git a/devtools/server/actors/resources/storage/indexed-db.js b/devtools/server/actors/resources/storage/indexed-db.js new file mode 100644 index 0000000000..8ded705c4f --- /dev/null +++ b/devtools/server/actors/resources/storage/indexed-db.js @@ -0,0 +1,984 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +"use strict"; + +const { + BaseStorageActor, + MAX_STORE_OBJECT_COUNT, + SEPARATOR_GUID, +} = require("resource://devtools/server/actors/resources/storage/index.js"); +const { + LongStringActor, +} = require("resource://devtools/server/actors/string.js"); +// We give this a funny name to avoid confusion with the global +// indexedDB. +loader.lazyGetter(this, "indexedDBForStorage", () => { + // On xpcshell, we can't instantiate indexedDB without crashing + try { + const sandbox = Cu.Sandbox( + Components.Constructor( + "@mozilla.org/systemprincipal;1", + "nsIPrincipal" + )(), + { wantGlobalProperties: ["indexedDB"] } + ); + return sandbox.indexedDB; + } catch (e) { + return {}; + } +}); +const lazy = {}; +ChromeUtils.defineESModuleGetters(lazy, { + Sqlite: "resource://gre/modules/Sqlite.sys.mjs", +}); + +/** + * An async method equivalent to setTimeout but using Promises + * + * @param {number} time + * The wait time in milliseconds. + */ +function sleep(time) { + return new Promise(resolve => { + setTimeout(() => { + resolve(null); + }, time); + }); +} + +const SAFE_HOSTS_PREFIXES_REGEX = /^(about\+|https?\+|file\+|moz-extension\+)/; + +// A RegExp for characters that cannot appear in a file/directory name. This is +// used to sanitize the host name for indexed db to lookup whether the file is +// present in <profileDir>/storage/default/ location +const illegalFileNameCharacters = [ + "[", + // Control characters \001 to \036 + "\\x00-\\x24", + // Special characters + '/:*?\\"<>|\\\\', + "]", +].join(""); +const ILLEGAL_CHAR_REGEX = new RegExp(illegalFileNameCharacters, "g"); + +/** + * Code related to the Indexed DB actor and front + */ + +// Metadata holder objects for various components of Indexed DB + +/** + * Meta data object for a particular index in an object store + * + * @param {IDBIndex} index + * The particular index from the object store. + */ +function IndexMetadata(index) { + this._name = index.name; + this._keyPath = index.keyPath; + this._unique = index.unique; + this._multiEntry = index.multiEntry; +} +IndexMetadata.prototype = { + toObject() { + return { + name: this._name, + keyPath: this._keyPath, + unique: this._unique, + multiEntry: this._multiEntry, + }; + }, +}; + +/** + * Meta data object for a particular object store in a db + * + * @param {IDBObjectStore} objectStore + * The particular object store from the db. + */ +function ObjectStoreMetadata(objectStore) { + this._name = objectStore.name; + this._keyPath = objectStore.keyPath; + this._autoIncrement = objectStore.autoIncrement; + this._indexes = []; + + for (let i = 0; i < objectStore.indexNames.length; i++) { + const index = objectStore.index(objectStore.indexNames[i]); + + const newIndex = { + keypath: index.keyPath, + multiEntry: index.multiEntry, + name: index.name, + objectStore: { + autoIncrement: index.objectStore.autoIncrement, + indexNames: [...index.objectStore.indexNames], + keyPath: index.objectStore.keyPath, + name: index.objectStore.name, + }, + }; + + this._indexes.push([newIndex, new IndexMetadata(index)]); + } +} +ObjectStoreMetadata.prototype = { + toObject() { + return { + name: this._name, + keyPath: this._keyPath, + autoIncrement: this._autoIncrement, + indexes: JSON.stringify( + [...this._indexes.values()].map(index => index.toObject()) + ), + }; + }, +}; + +/** + * Meta data object for a particular indexed db in a host. + * + * @param {string} origin + * The host associated with this indexed db. + * @param {IDBDatabase} db + * The particular indexed db. + * @param {String} storage + * Storage type, either "temporary", "default" or "persistent". + */ +function DatabaseMetadata(origin, db, storage) { + this._origin = origin; + this._name = db.name; + this._version = db.version; + this._objectStores = []; + this.storage = storage; + + if (db.objectStoreNames.length) { + const transaction = db.transaction(db.objectStoreNames, "readonly"); + + for (let i = 0; i < transaction.objectStoreNames.length; i++) { + const objectStore = transaction.objectStore( + transaction.objectStoreNames[i] + ); + this._objectStores.push([ + transaction.objectStoreNames[i], + new ObjectStoreMetadata(objectStore), + ]); + } + } +} +DatabaseMetadata.prototype = { + get objectStores() { + return this._objectStores; + }, + + toObject() { + return { + uniqueKey: `${this._name}${SEPARATOR_GUID}${this.storage}`, + name: this._name, + storage: this.storage, + origin: this._origin, + version: this._version, + objectStores: this._objectStores.size, + }; + }, +}; + +class IndexedDBStorageActor extends BaseStorageActor { + constructor(storageActor) { + super(storageActor, "indexedDB"); + + this.objectsSize = {}; + this.storageActor = storageActor; + } + + destroy() { + this.objectsSize = null; + + super.destroy(); + } + + // We need to override this method because of custom, async getHosts method + async populateStoresForHosts() { + for (const host of await this.getHosts()) { + await this.populateStoresForHost(host); + } + } + + async populateStoresForHost(host) { + const storeMap = new Map(); + + const win = this.storageActor.getWindowFromHost(host); + const principal = this.getPrincipal(win); + + const { names } = await this.getDBNamesForHost(host, principal); + + for (const { name, storage } of names) { + let metadata = await this.getDBMetaData(host, principal, name, storage); + + metadata = this.patchMetadataMapsAndProtos(metadata); + + storeMap.set(`${name} (${storage})`, metadata); + } + + this.hostVsStores.set(host, storeMap); + } + + /** + * Returns a list of currently known hosts for the target window. This list + * contains unique hosts from the window, all inner windows and all permanent + * indexedDB hosts defined inside the browser. + */ + async getHosts() { + // Add internal hosts to this._internalHosts, which will be picked up by + // the this.hosts getter. Because this.hosts is a property on the default + // storage actor and inherited by all storage actors we have to do it this + // way. + // Only look up internal hosts if we are in the browser toolbox + const isBrowserToolbox = this.storageActor.parentActor.isRootActor; + + this._internalHosts = isBrowserToolbox ? await this.getInternalHosts() : []; + + return this.hosts; + } + + /** + * Remove an indexedDB database from given host with a given name. + */ + async removeDatabase(host, name) { + const win = this.storageActor.getWindowFromHost(host); + if (!win) { + return { error: `Window for host ${host} not found` }; + } + + const principal = win.document.effectiveStoragePrincipal; + return this.removeDB(host, principal, name); + } + + async removeAll(host, name) { + const [db, store] = JSON.parse(name); + + const win = this.storageActor.getWindowFromHost(host); + if (!win) { + return; + } + + const principal = win.document.effectiveStoragePrincipal; + this.clearDBStore(host, principal, db, store); + } + + async removeItem(host, name) { + const [db, store, id] = JSON.parse(name); + + const win = this.storageActor.getWindowFromHost(host); + if (!win) { + return; + } + + const principal = win.document.effectiveStoragePrincipal; + this.removeDBRecord(host, principal, db, store, id); + } + + getNamesForHost(host) { + const storesForHost = this.hostVsStores.get(host); + if (!storesForHost) { + return []; + } + + const names = []; + + for (const [dbName, { objectStores }] of storesForHost) { + if (objectStores.size) { + for (const objectStore of objectStores.keys()) { + names.push(JSON.stringify([dbName, objectStore])); + } + } else { + names.push(JSON.stringify([dbName])); + } + } + + return names; + } + + /** + * Returns the total number of entries for various types of requests to + * getStoreObjects for Indexed DB actor. + * + * @param {string} host + * The host for the request. + * @param {array:string} names + * Array of stringified name objects for indexed db actor. + * The request type depends on the length of any parsed entry from this + * array. 0 length refers to request for the whole host. 1 length + * refers to request for a particular db in the host. 2 length refers + * to a particular object store in a db in a host. 3 length refers to + * particular items of an object store in a db in a host. + * @param {object} options + * An options object containing following properties: + * - index {string} The IDBIndex for the object store in the db. + */ + getObjectsSize(host, names, options) { + // In Indexed DB, we are interested in only the first name, as the pattern + // should follow in all entries. + const name = names[0]; + const parsedName = JSON.parse(name); + + if (parsedName.length == 3) { + // This is the case where specific entries from an object store were + // requested + return names.length; + } else if (parsedName.length == 2) { + // This is the case where all entries from an object store are requested. + const index = options.index; + const [db, objectStore] = parsedName; + if (this.objectsSize[host + db + objectStore + index]) { + return this.objectsSize[host + db + objectStore + index]; + } + } else if (parsedName.length == 1) { + // This is the case where details of all object stores in a db are + // requested. + if ( + this.hostVsStores.has(host) && + this.hostVsStores.get(host).has(parsedName[0]) + ) { + return this.hostVsStores.get(host).get(parsedName[0]).objectStores.size; + } + } else if (!parsedName || !parsedName.length) { + // This is the case were details of all dbs in a host are requested. + if (this.hostVsStores.has(host)) { + return this.hostVsStores.get(host).size; + } + } + return 0; + } + + /** + * Returns the over-the-wire implementation of the indexed db entity. + */ + toStoreObject(item) { + if (!item) { + return null; + } + + if ("indexes" in item) { + // Object store meta data + return { + objectStore: item.name, + keyPath: item.keyPath, + autoIncrement: item.autoIncrement, + indexes: item.indexes, + }; + } + if ("objectStores" in item) { + // DB meta data + return { + uniqueKey: `${item.name} (${item.storage})`, + db: item.name, + storage: item.storage, + origin: item.origin, + version: item.version, + objectStores: item.objectStores, + }; + } + + const value = JSON.stringify(item.value); + + // Indexed db entry + return { + name: item.name, + value: new LongStringActor(this.conn, value), + }; + } + + form() { + const hosts = {}; + for (const host of this.hosts) { + hosts[host] = this.getNamesForHost(host); + } + + return { + actor: this.actorID, + hosts, + traits: this._getTraits(), + }; + } + + onItemUpdated(action, host, path) { + dump(" IDX.onItemUpdated(" + action + " - " + host + " - " + path + "\n"); + // Database was removed, remove it from stores map + if (action === "deleted" && path.length === 1) { + if (this.hostVsStores.has(host)) { + this.hostVsStores.get(host).delete(path[0]); + } + } + + this.storageActor.update(action, "indexedDB", { + [host]: [JSON.stringify(path)], + }); + } + + async getFields(subType) { + switch (subType) { + // Detail of database + case "database": + return [ + { name: "objectStore", editable: false }, + { name: "keyPath", editable: false }, + { name: "autoIncrement", editable: false }, + { name: "indexes", editable: false }, + ]; + + // Detail of object store + case "object store": + return [ + { name: "name", editable: false }, + { name: "value", editable: false }, + ]; + + // Detail of indexedDB for one origin + default: + return [ + { name: "uniqueKey", editable: false, private: true }, + { name: "db", editable: false }, + { name: "storage", editable: false }, + { name: "origin", editable: false }, + { name: "version", editable: false }, + { name: "objectStores", editable: false }, + ]; + } + } + + /** + * Fetches and stores all the metadata information for the given database + * `name` for the given `host` with its `principal`. The stored metadata + * information is of `DatabaseMetadata` type. + */ + async getDBMetaData(host, principal, name, storage) { + const request = this.openWithPrincipal(principal, name, storage); + return new Promise(resolve => { + request.onsuccess = event => { + const db = event.target.result; + const dbData = new DatabaseMetadata(host, db, storage); + db.close(); + + resolve(dbData); + }; + request.onerror = ({ target }) => { + console.error( + `Error opening indexeddb database ${name} for host ${host}`, + target.error + ); + resolve(null); + }; + }); + } + + splitNameAndStorage(name) { + const lastOpenBracketIndex = name.lastIndexOf("("); + const lastCloseBracketIndex = name.lastIndexOf(")"); + const delta = lastCloseBracketIndex - lastOpenBracketIndex - 1; + + const storage = name.substr(lastOpenBracketIndex + 1, delta); + + name = name.substr(0, lastOpenBracketIndex - 1); + + return { storage, name }; + } + + /** + * Get all "internal" hosts. Internal hosts are database namespaces used by + * the browser. + */ + async getInternalHosts() { + const profileDir = PathUtils.profileDir; + const storagePath = PathUtils.join(profileDir, "storage", "permanent"); + const children = await IOUtils.getChildren(storagePath); + const hosts = []; + + for (const path of children) { + const exists = await IOUtils.exists(path); + if (!exists) { + continue; + } + + const stats = await IOUtils.stat(path); + if ( + stats.type === "directory" && + !SAFE_HOSTS_PREFIXES_REGEX.test(stats.path) + ) { + const basename = PathUtils.filename(path); + hosts.push(basename); + } + } + + return hosts; + } + + /** + * Opens an indexed db connection for the given `principal` and + * database `name`. + */ + openWithPrincipal(principal, name, storage) { + return indexedDBForStorage.openForPrincipal(principal, name, { + storage, + }); + } + + async removeDB(host, principal, dbName) { + const result = new Promise(resolve => { + const { name, storage } = this.splitNameAndStorage(dbName); + const request = indexedDBForStorage.deleteForPrincipal(principal, name, { + storage, + }); + + request.onsuccess = () => { + resolve({}); + this.onItemUpdated("deleted", host, [dbName]); + }; + + request.onblocked = () => { + console.warn( + `Deleting indexedDB database ${name} for host ${host} is blocked` + ); + resolve({ blocked: true }); + }; + + request.onerror = () => { + const { error } = request; + console.warn( + `Error deleting indexedDB database ${name} for host ${host}: ${error}` + ); + resolve({ error: error.message }); + }; + + // If the database is blocked repeatedly, the onblocked event will not + // be fired again. To avoid waiting forever, report as blocked if nothing + // else happens after 3 seconds. + setTimeout(() => resolve({ blocked: true }), 3000); + }); + + return result; + } + + async removeDBRecord(host, principal, dbName, storeName, id) { + let db; + const { name, storage } = this.splitNameAndStorage(dbName); + + try { + db = await new Promise((resolve, reject) => { + const request = this.openWithPrincipal(principal, name, storage); + request.onsuccess = ev => resolve(ev.target.result); + request.onerror = ev => reject(ev.target.error); + }); + + const transaction = db.transaction(storeName, "readwrite"); + const store = transaction.objectStore(storeName); + + await new Promise((resolve, reject) => { + const request = store.delete(id); + request.onsuccess = () => resolve(); + request.onerror = ev => reject(ev.target.error); + }); + + this.onItemUpdated("deleted", host, [dbName, storeName, id]); + } catch (error) { + const recordPath = [dbName, storeName, id].join("/"); + console.error( + `Failed to delete indexedDB record: ${recordPath}: ${error}` + ); + } + + if (db) { + db.close(); + } + + return null; + } + + async clearDBStore(host, principal, dbName, storeName) { + let db; + const { name, storage } = this.splitNameAndStorage(dbName); + + try { + db = await new Promise((resolve, reject) => { + const request = this.openWithPrincipal(principal, name, storage); + request.onsuccess = ev => resolve(ev.target.result); + request.onerror = ev => reject(ev.target.error); + }); + + const transaction = db.transaction(storeName, "readwrite"); + const store = transaction.objectStore(storeName); + + await new Promise((resolve, reject) => { + const request = store.clear(); + request.onsuccess = () => resolve(); + request.onerror = ev => reject(ev.target.error); + }); + + this.onItemUpdated("cleared", host, [dbName, storeName]); + } catch (error) { + const storePath = [dbName, storeName].join("/"); + console.error(`Failed to clear indexedDB store: ${storePath}: ${error}`); + } + + if (db) { + db.close(); + } + + return null; + } + + /** + * Fetches all the databases and their metadata for the given `host`. + */ + async getDBNamesForHost(host, principal) { + const sanitizedHost = this.getSanitizedHost(host) + principal.originSuffix; + const profileDir = PathUtils.profileDir; + const storagePath = PathUtils.join(profileDir, "storage"); + const files = []; + const names = []; + + // We expect sqlite DB paths to look something like this: + // - PathToProfileDir/storage/default/http+++www.example.com/ + // idb/1556056096MeysDaabta.sqlite + // - PathToProfileDir/storage/permanent/http+++www.example.com/ + // idb/1556056096MeysDaabta.sqlite + // - PathToProfileDir/storage/temporary/http+++www.example.com/ + // idb/1556056096MeysDaabta.sqlite + // The subdirectory inside the storage folder is determined by the storage + // type: + // - default: { storage: "default" } or not specified. + // - permanent: { storage: "persistent" }. + // - temporary: { storage: "temporary" }. + const sqliteFiles = await this.findSqlitePathsForHost( + storagePath, + sanitizedHost + ); + + for (const file of sqliteFiles) { + const splitPath = PathUtils.split(file); + const idbIndex = splitPath.indexOf("idb"); + const storage = splitPath[idbIndex - 2]; + const relative = file.substr(profileDir.length + 1); + + files.push({ + file: relative, + storage: storage === "permanent" ? "persistent" : storage, + }); + } + + if (files.length) { + for (const { file, storage } of files) { + const name = await this.getNameFromDatabaseFile(file); + if (name) { + names.push({ + name, + storage, + }); + } + } + } + + return { names }; + } + + /** + * Find all SQLite files that hold IndexedDB data for a host, such as: + * storage/temporary/http+++www.example.com/idb/1556056096MeysDaabta.sqlite + */ + async findSqlitePathsForHost(storagePath, sanitizedHost) { + const sqlitePaths = []; + const idbPaths = await this.findIDBPathsForHost(storagePath, sanitizedHost); + for (const idbPath of idbPaths) { + const children = await IOUtils.getChildren(idbPath); + + for (const path of children) { + const exists = await IOUtils.exists(path); + if (!exists) { + continue; + } + + const stats = await IOUtils.stat(path); + if (stats.type !== "directory" && stats.path.endsWith(".sqlite")) { + sqlitePaths.push(path); + } + } + } + return sqlitePaths; + } + + /** + * Find all paths that hold IndexedDB data for a host, such as: + * storage/temporary/http+++www.example.com/idb + */ + async findIDBPathsForHost(storagePath, sanitizedHost) { + const idbPaths = []; + const typePaths = await this.findStorageTypePaths(storagePath); + for (const typePath of typePaths) { + const idbPath = PathUtils.join(typePath, sanitizedHost, "idb"); + if (await IOUtils.exists(idbPath)) { + idbPaths.push(idbPath); + } + } + return idbPaths; + } + + /** + * Find all the storage types, such as "default", "permanent", or "temporary". + * These names have changed over time, so it seems simpler to look through all + * types that currently exist in the profile. + */ + async findStorageTypePaths(storagePath) { + const children = await IOUtils.getChildren(storagePath); + const typePaths = []; + + for (const path of children) { + const exists = await IOUtils.exists(path); + if (!exists) { + continue; + } + + const stats = await IOUtils.stat(path); + if (stats.type === "directory") { + typePaths.push(path); + } + } + + return typePaths; + } + + /** + * Removes any illegal characters from the host name to make it a valid file + * name. + */ + getSanitizedHost(host) { + if (host.startsWith("about:")) { + host = "moz-safe-" + host; + } + return host.replace(ILLEGAL_CHAR_REGEX, "+"); + } + + /** + * Retrieves the proper indexed db database name from the provided .sqlite + * file location. + */ + async getNameFromDatabaseFile(path) { + let connection = null; + let retryCount = 0; + + // Content pages might be having an open transaction for the same indexed db + // which this sqlite file belongs to. In that case, sqlite.openConnection + // will throw. Thus we retry for some time to see if lock is removed. + while (!connection && retryCount++ < 25) { + try { + connection = await lazy.Sqlite.openConnection({ path }); + } catch (ex) { + // Continuously retrying is overkill. Waiting for 100ms before next try + await sleep(100); + } + } + + if (!connection) { + return null; + } + + const rows = await connection.execute("SELECT name FROM database"); + if (rows.length != 1) { + return null; + } + + const name = rows[0].getResultByName("name"); + + await connection.close(); + + return name; + } + + async getValuesForHost( + host, + name = "null", + options, + hostVsStores, + principal + ) { + name = JSON.parse(name); + if (!name || !name.length) { + // This means that details about the db in this particular host are + // requested. + const dbs = []; + if (hostVsStores.has(host)) { + for (let [, db] of hostVsStores.get(host)) { + db = this.patchMetadataMapsAndProtos(db); + dbs.push(db.toObject()); + } + } + return { dbs }; + } + + const [db2, objectStore, id] = name; + if (!objectStore) { + // This means that details about all the object stores in this db are + // requested. + const objectStores = []; + if (hostVsStores.has(host) && hostVsStores.get(host).has(db2)) { + let db = hostVsStores.get(host).get(db2); + + db = this.patchMetadataMapsAndProtos(db); + + const objectStores2 = db.objectStores; + + for (const objectStore2 of objectStores2) { + objectStores.push(objectStore2[1].toObject()); + } + } + return { + objectStores, + }; + } + // Get either all entries from the object store, or a particular id + const storage = hostVsStores.get(host).get(db2).storage; + const result = await this.getObjectStoreData( + host, + principal, + db2, + storage, + { + objectStore, + id, + index: options.index, + offset: options.offset, + size: options.size, + } + ); + return { result }; + } + + /** + * Returns requested entries (or at most MAX_STORE_OBJECT_COUNT) from a particular + * objectStore from the db in the given host. + * + * @param {string} host + * The given host. + * @param {nsIPrincipal} principal + * The principal of the given document. + * @param {string} dbName + * The name of the indexed db from the above host. + * @param {String} storage + * Storage type, either "temporary", "default" or "persistent". + * @param {Object} requestOptions + * An object in the following format: + * { + * objectStore: The name of the object store from the above db, + * id: Id of the requested entry from the above object + * store. null if all entries from the above object + * store are requested, + * index: Name of the IDBIndex to be iterated on while fetching + * entries. null or "name" if no index is to be + * iterated, + * offset: offset of the entries to be fetched, + * size: The intended size of the entries to be fetched + * } + */ + getObjectStoreData(host, principal, dbName, storage, requestOptions) { + const { name } = this.splitNameAndStorage(dbName); + const request = this.openWithPrincipal(principal, name, storage); + + return new Promise((resolve, reject) => { + let { objectStore, id, index, offset, size } = requestOptions; + const data = []; + let db; + + if (!size || size > MAX_STORE_OBJECT_COUNT) { + size = MAX_STORE_OBJECT_COUNT; + } + + request.onsuccess = event => { + db = event.target.result; + + const transaction = db.transaction(objectStore, "readonly"); + let source = transaction.objectStore(objectStore); + if (index && index != "name") { + source = source.index(index); + } + + source.count().onsuccess = event2 => { + const objectsSize = []; + const count = event2.target.result; + objectsSize.push({ + key: host + dbName + objectStore + index, + count, + }); + + if (!offset) { + offset = 0; + } else if (offset > count) { + db.close(); + resolve([]); + return; + } + + if (id) { + source.get(id).onsuccess = event3 => { + db.close(); + resolve([{ name: id, value: event3.target.result }]); + }; + } else { + source.openCursor().onsuccess = event4 => { + const cursor = event4.target.result; + + if (!cursor || data.length >= size) { + db.close(); + resolve({ + data, + objectsSize, + }); + return; + } + if (offset-- <= 0) { + data.push({ name: cursor.key, value: cursor.value }); + } + cursor.continue(); + }; + } + }; + }; + + request.onerror = () => { + db.close(); + resolve([]); + }; + }); + } + + /** + * When indexedDB metadata is parsed to and from JSON then the object's + * prototype is dropped and any Maps are changed to arrays of arrays. This + * method is used to repair the prototypes and fix any broken Maps. + */ + patchMetadataMapsAndProtos(metadata) { + const md = Object.create(DatabaseMetadata.prototype); + Object.assign(md, metadata); + + md._objectStores = new Map(metadata._objectStores); + + for (const [name, store] of md._objectStores) { + const obj = Object.create(ObjectStoreMetadata.prototype); + Object.assign(obj, store); + + md._objectStores.set(name, obj); + + if (typeof store._indexes.length !== "undefined") { + obj._indexes = new Map(store._indexes); + } + + for (const [name2, value] of obj._indexes) { + const obj2 = Object.create(IndexMetadata.prototype); + Object.assign(obj2, value); + + obj._indexes.set(name2, obj2); + } + } + + return md; + } +} +exports.IndexedDBStorageActor = IndexedDBStorageActor; |