mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
494 lines
16 KiB
JavaScript
494 lines
16 KiB
JavaScript
/* -*- Mode: js2; js2-basic-offset: 2; indent-tabs-mode: nil; -*- */
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/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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'use strict'
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/* static functions */
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function debug(s) {
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//dump('DEBUG DataStoreService: ' + s + '\n');
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}
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const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
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Cu.import('resource://gre/modules/XPCOMUtils.jsm');
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Cu.import('resource://gre/modules/Services.jsm');
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Cu.import('resource://gre/modules/DataStore.jsm');
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Cu.import("resource://gre/modules/DataStoreDB.jsm");
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Cu.import("resource://gre/modules/DOMRequestHelper.jsm");
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XPCOMUtils.defineLazyServiceGetter(this, "cpmm",
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"@mozilla.org/childprocessmessagemanager;1",
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"nsIMessageSender");
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XPCOMUtils.defineLazyServiceGetter(this, "ppmm",
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"@mozilla.org/parentprocessmessagemanager;1",
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"nsIMessageBroadcaster");
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XPCOMUtils.defineLazyServiceGetter(this, "permissionManager",
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"@mozilla.org/permissionmanager;1",
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"nsIPermissionManager");
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XPCOMUtils.defineLazyServiceGetter(this, "secMan",
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"@mozilla.org/scriptsecuritymanager;1",
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"nsIScriptSecurityManager");
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/* DataStoreService */
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const DATASTORESERVICE_CID = Components.ID('{d193d0e2-c677-4a7b-bb0a-19155b470f2e}');
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const REVISION_VOID = "void";
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function DataStoreService() {
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debug('DataStoreService Constructor');
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this.inParent = Cc["@mozilla.org/xre/app-info;1"].getService(Ci.nsIXULRuntime)
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.processType == Ci.nsIXULRuntime.PROCESS_TYPE_DEFAULT;
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if (this.inParent) {
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let obs = Services.obs;
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if (!obs) {
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debug("DataStore Error: observer-service is null!");
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return;
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}
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obs.addObserver(this, 'webapps-clear-data', false);
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}
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let self = this;
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cpmm.addMessageListener("datastore-first-revision-created",
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function(aMsg) { self.receiveMessage(aMsg); });
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}
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DataStoreService.prototype = {
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inParent: false,
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// Hash of DataStores
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stores: {},
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accessStores: {},
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pendingRequests: {},
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installDataStore: function(aAppId, aName, aOrigin, aOwner, aReadOnly) {
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debug('installDataStore - appId: ' + aAppId + ', aName: ' +
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aName + ', aOrigin: ' + aOrigin + ', aOwner:' + aOwner +
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', aReadOnly: ' + aReadOnly);
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this.checkIfInParent();
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if (aName in this.stores && aAppId in this.stores[aName]) {
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debug('This should not happen');
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return;
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}
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if (!(aName in this.stores)) {
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this.stores[aName] = {};
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}
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// A DataStore is enabled when it has a first valid revision.
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this.stores[aName][aAppId] = { origin: aOrigin, owner: aOwner,
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readOnly: aReadOnly, enabled: false };
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this.addPermissions(aAppId, aName, aOrigin, aOwner, aReadOnly);
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this.createFirstRevisionId(aAppId, aName, aOwner);
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},
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installAccessDataStore: function(aAppId, aName, aOrigin, aOwner, aReadOnly) {
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debug('installAccessDataStore - appId: ' + aAppId + ', aName: ' +
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aName + ', aOrigin: ' + aOrigin + ', aOwner:' + aOwner +
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', aReadOnly: ' + aReadOnly);
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this.checkIfInParent();
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if (aName in this.accessStores && aAppId in this.accessStores[aName]) {
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debug('This should not happen');
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return;
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}
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if (!(aName in this.accessStores)) {
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this.accessStores[aName] = {};
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}
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this.accessStores[aName][aAppId] = { origin: aOrigin, owner: aOwner,
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readOnly: aReadOnly };
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this.addAccessPermissions(aAppId, aName, aOrigin, aOwner, aReadOnly);
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},
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checkIfInParent: function() {
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if (!this.inParent) {
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throw "DataStore can execute this operation just in the parent process";
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}
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},
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createFirstRevisionId: function(aAppId, aName, aOwner) {
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debug("createFirstRevisionId database: " + aName);
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let self = this;
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let db = new DataStoreDB();
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db.init(aOwner, aName);
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db.revisionTxn(
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'readwrite',
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function(aTxn, aRevisionStore) {
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debug("createFirstRevisionId - transaction success");
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let request = aRevisionStore.openCursor(null, 'prev');
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request.onsuccess = function(aEvent) {
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let cursor = aEvent.target.result;
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if (cursor) {
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debug("First revision already created.");
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self.enableDataStore(aAppId, aName, aOwner);
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} else {
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// If the revision doesn't exist, let's create the first one.
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db.addRevision(aRevisionStore, 0, REVISION_VOID, function() {
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debug("First revision created.");
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self.enableDataStore(aAppId, aName, aOwner);
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});
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}
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};
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}
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);
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},
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enableDataStore: function(aAppId, aName, aOwner) {
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if (aName in this.stores && aAppId in this.stores[aName]) {
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this.stores[aName][aAppId].enabled = true;
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ppmm.broadcastAsyncMessage('datastore-first-revision-created',
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{ name: aName, owner: aOwner });
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}
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},
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addPermissions: function(aAppId, aName, aOrigin, aOwner, aReadOnly) {
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// When a new DataStore is installed, the permissions must be set for the
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// owner app.
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let permission = "indexedDB-chrome-" + aName + '|' + aOwner;
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this.resetPermissions(aAppId, aOrigin, aOwner, permission, aReadOnly);
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// For any app that wants to have access to this DataStore we add the
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// permissions.
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if (aName in this.accessStores) {
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for (let appId in this.accessStores[aName]) {
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// ReadOnly is decided by the owner first.
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let readOnly = aReadOnly || this.accessStores[aName][appId].readOnly;
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this.resetPermissions(appId, this.accessStores[aName][appId].origin,
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this.accessStores[aName][appId].owner,
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permission, readOnly);
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}
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}
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},
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addAccessPermissions: function(aAppId, aName, aOrigin, aOwner, aReadOnly) {
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// When an app wants to have access to a DataStore, the permissions must be
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// set.
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if (!(aName in this.stores)) {
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return;
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}
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for (let appId in this.stores[aName]) {
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let permission = "indexedDB-chrome-" + aName + '|' + this.stores[aName][appId].owner;
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// The ReadOnly is decied by the owenr first.
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let readOnly = this.stores[aName][appId].readOnly || aReadOnly;
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this.resetPermissions(aAppId, aOrigin, aOwner, permission, readOnly);
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}
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},
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resetPermissions: function(aAppId, aOrigin, aOwner, aPermission, aReadOnly) {
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debug("ResetPermissions - appId: " + aAppId + " - origin: " + aOrigin +
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" - owner: " + aOwner + " - permissions: " + aPermission +
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" - readOnly: " + aReadOnly);
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let uri = Services.io.newURI(aOrigin, null, null);
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let principal = secMan.getAppCodebasePrincipal(uri, aAppId, false);
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let result = permissionManager.testExactPermissionFromPrincipal(principal,
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aPermission + '-write');
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if (aReadOnly && result == Ci.nsIPermissionManager.ALLOW_ACTION) {
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debug("Write permission removed");
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permissionManager.removeFromPrincipal(principal, aPermission + '-write');
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} else if (!aReadOnly && result != Ci.nsIPermissionManager.ALLOW_ACTION) {
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debug("Write permission added");
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permissionManager.addFromPrincipal(principal, aPermission + '-write',
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Ci.nsIPermissionManager.ALLOW_ACTION);
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}
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result = permissionManager.testExactPermissionFromPrincipal(principal,
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aPermission + '-read');
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if (result != Ci.nsIPermissionManager.ALLOW_ACTION) {
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debug("Read permission added");
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permissionManager.addFromPrincipal(principal, aPermission + '-read',
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Ci.nsIPermissionManager.ALLOW_ACTION);
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}
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result = permissionManager.testExactPermissionFromPrincipal(principal, aPermission);
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if (result != Ci.nsIPermissionManager.ALLOW_ACTION) {
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debug("Generic permission added");
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permissionManager.addFromPrincipal(principal, aPermission,
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Ci.nsIPermissionManager.ALLOW_ACTION);
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}
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},
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getDataStores: function(aWindow, aName) {
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debug('getDataStores - aName: ' + aName);
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let self = this;
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return new aWindow.Promise(function(resolve, reject) {
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// If this request comes from the main process, we have access to the
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// window, so we can skip the ipc communication.
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if (self.inParent) {
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let stores = self.getDataStoresInfo(aName, aWindow.document.nodePrincipal.appId);
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if (stores === null) {
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reject(new aWindow.DOMError("SecurityError", "Access denied"));
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return;
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}
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self.getDataStoreCreate(aWindow, resolve, stores);
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} else {
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// This method can be called in the child so we need to send a request
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// to the parent and create DataStore object here.
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new DataStoreServiceChild(aWindow, aName, function(aStores) {
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debug("DataStoreServiceChild success callback!");
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self.getDataStoreCreate(aWindow, resolve, aStores);
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}, function() {
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debug("DataStoreServiceChild error callback!");
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reject(new aWindow.DOMError("SecurityError", "Access denied"));
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});
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}
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});
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},
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getDataStoresInfo: function(aName, aAppId) {
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debug('GetDataStoresInfo');
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let appsService = Cc["@mozilla.org/AppsService;1"]
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.getService(Ci.nsIAppsService);
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let app = appsService.getAppByLocalId(aAppId);
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if (!app) {
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return null;
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}
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let prefName = "dom.testing.datastore_enabled_for_hosted_apps";
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if (app.appStatus != Ci.nsIPrincipal.APP_STATUS_CERTIFIED &&
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(Services.prefs.getPrefType(prefName) == Services.prefs.PREF_INVALID ||
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!Services.prefs.getBoolPref(prefName))) {
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return null;
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}
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let results = [];
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if (aName in this.stores) {
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if (aAppId in this.stores[aName]) {
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results.push({ name: aName,
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owner: this.stores[aName][aAppId].owner,
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readOnly: false,
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enabled: this.stores[aName][aAppId].enabled });
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}
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for (var i in this.stores[aName]) {
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if (i == aAppId) {
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continue;
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}
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let access = this.getDataStoreAccess(aName, aAppId);
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if (!access) {
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continue;
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}
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let readOnly = this.stores[aName][i].readOnly || access.readOnly;
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results.push({ name: aName,
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owner: this.stores[aName][i].owner,
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readOnly: readOnly,
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enabled: this.stores[aName][i].enabled });
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}
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}
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return results;
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},
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getDataStoreCreate: function(aWindow, aResolve, aStores) {
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debug("GetDataStoreCreate");
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let results = [];
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if (!aStores.length) {
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aResolve(results);
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return;
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}
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let pendingDataStores = [];
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for (let i = 0; i < aStores.length; ++i) {
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if (!aStores[i].enabled) {
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pendingDataStores.push(aStores[i].owner);
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}
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}
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if (!pendingDataStores.length) {
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this.getDataStoreResolve(aWindow, aResolve, aStores);
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return;
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}
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if (!(aStores[0].name in this.pendingRequests)) {
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this.pendingRequests[aStores[0].name] = [];
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}
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this.pendingRequests[aStores[0].name].push({ window: aWindow,
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resolve: aResolve,
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stores: aStores,
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pendingDataStores: pendingDataStores });
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},
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getDataStoreResolve: function(aWindow, aResolve, aStores) {
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debug("GetDataStoreResolve");
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let callbackPending = aStores.length;
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let results = [];
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if (!callbackPending) {
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aResolve(results);
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return;
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}
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for (let i = 0; i < aStores.length; ++i) {
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let obj = new DataStore(aWindow, aStores[i].name,
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aStores[i].owner, aStores[i].readOnly);
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let exposedObj = aWindow.DataStore._create(aWindow, obj);
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obj.exposedObject = exposedObj;
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results.push(exposedObj);
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obj.retrieveRevisionId(
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function() {
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--callbackPending;
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if (!callbackPending) {
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aResolve(results);
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}
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}
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);
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}
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},
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getDataStoreAccess: function(aName, aAppId) {
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if (!(aName in this.accessStores) ||
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!(aAppId in this.accessStores[aName])) {
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return null;
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}
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return this.accessStores[aName][aAppId];
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},
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observe: function observe(aSubject, aTopic, aData) {
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debug('getDataStores - aTopic: ' + aTopic);
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if (aTopic != 'webapps-clear-data') {
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return;
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}
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let params =
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aSubject.QueryInterface(Ci.mozIApplicationClearPrivateDataParams);
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// DataStore is explosed to apps, not browser content.
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if (params.browserOnly) {
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return;
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}
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for (let key in this.stores) {
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if (params.appId in this.stores[key]) {
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this.deleteDatabase(key, this.stores[key][params.appId].owner);
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delete this.stores[key][params.appId];
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}
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if (!this.stores[key].length) {
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delete this.stores[key];
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}
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}
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},
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deleteDatabase: function(aName, aOwner) {
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debug("delete database: " + aName);
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let db = new DataStoreDB();
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db.init(aOwner, aName);
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db.delete();
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},
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receiveMessage: function(aMsg) {
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debug("receiveMessage");
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let data = aMsg.json;
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if (!(data.name in this.pendingRequests)) {
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return;
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}
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for (let i = 0; i < this.pendingRequests[data.name].length;) {
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let pos = this.pendingRequests[data.name][i].pendingDataStores.indexOf(data.owner);
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if (pos != -1) {
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this.pendingRequests[data.name][i].pendingDataStores.splice(pos, 1);
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if (!this.pendingRequests[data.name][i].pendingDataStores.length) {
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this.getDataStoreResolve(this.pendingRequests[data.name][i].window,
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this.pendingRequests[data.name][i].resolve,
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this.pendingRequests[data.name][i].stores);
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this.pendingRequests[data.name].splice(i, 1);
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continue;
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}
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}
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++i;
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}
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if (!this.pendingRequests[data.name].length) {
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delete this.pendingRequests[data.name];
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}
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},
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classID : DATASTORESERVICE_CID,
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QueryInterface: XPCOMUtils.generateQI([Ci.nsIDataStoreService,
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Ci.nsIObserver]),
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classInfo: XPCOMUtils.generateCI({
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classID: DATASTORESERVICE_CID,
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contractID: '@mozilla.org/datastore-service;1',
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interfaces: [Ci.nsIDataStoreService, Ci.nsIObserver],
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flags: Ci.nsIClassInfo.SINGLETON
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})
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};
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/* DataStoreServiceChild */
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function DataStoreServiceChild(aWindow, aName, aSuccessCb, aErrorCb) {
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debug("DataStoreServiceChild created");
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this.init(aWindow, aName, aSuccessCb, aErrorCb);
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}
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DataStoreServiceChild.prototype = {
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__proto__: DOMRequestIpcHelper.prototype,
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init: function(aWindow, aName, aSuccessCb, aErrorCb) {
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debug("DataStoreServiceChild init");
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this._successCb = aSuccessCb;
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this._errorCb = aErrorCb;
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this.initDOMRequestHelper(aWindow, [ "DataStore:Get:Return:OK",
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"DataStore:Get:Return:KO" ]);
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cpmm.sendAsyncMessage("DataStore:Get",
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{ name: aName }, null, aWindow.document.nodePrincipal );
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},
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receiveMessage: function(aMessage) {
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debug("DataStoreServiceChild receiveMessage");
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switch (aMessage.name) {
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case 'DataStore:Get:Return:OK':
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this.destroyDOMRequestHelper();
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this._successCb(aMessage.data.stores);
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break;
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case 'DataStore:Get:Return:KO':
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this.destroyDOMRequestHelper();
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this._errorCb();
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break;
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}
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}
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}
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this.NSGetFactory = XPCOMUtils.generateNSGetFactory([DataStoreService]);
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