1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/alarm/AlarmsManager.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,206 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
1.6 + * You can obtain one at http://mozilla.org/MPL/2.0/. */
1.7 +
1.8 +"use strict";
1.9 +
1.10 +/* static functions */
1.11 +const DEBUG = false;
1.12 +
1.13 +function debug(aStr) {
1.14 + if (DEBUG)
1.15 + dump("AlarmsManager: " + aStr + "\n");
1.16 +}
1.17 +
1.18 +const { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
1.19 +
1.20 +Cu.import("resource://gre/modules/XPCOMUtils.jsm");
1.21 +Cu.import("resource://gre/modules/Services.jsm");
1.22 +Cu.import("resource://gre/modules/DOMRequestHelper.jsm");
1.23 +
1.24 +const ALARMSMANAGER_CONTRACTID = "@mozilla.org/alarmsManager;1";
1.25 +const ALARMSMANAGER_CID = Components.ID("{fea1e884-9b05-11e1-9b64-87a7016c3860}");
1.26 +const nsIDOMMozAlarmsManager = Ci.nsIDOMMozAlarmsManager;
1.27 +const nsIClassInfo = Ci.nsIClassInfo;
1.28 +
1.29 +function AlarmsManager()
1.30 +{
1.31 + debug("Constructor");
1.32 +}
1.33 +
1.34 +AlarmsManager.prototype = {
1.35 +
1.36 + __proto__: DOMRequestIpcHelper.prototype,
1.37 +
1.38 + classID : ALARMSMANAGER_CID,
1.39 +
1.40 + QueryInterface : XPCOMUtils.generateQI([nsIDOMMozAlarmsManager,
1.41 + Ci.nsIDOMGlobalPropertyInitializer,
1.42 + Ci.nsISupportsWeakReference,
1.43 + Ci.nsIObserver]),
1.44 +
1.45 + classInfo : XPCOMUtils.generateCI({ classID: ALARMSMANAGER_CID,
1.46 + contractID: ALARMSMANAGER_CONTRACTID,
1.47 + classDescription: "AlarmsManager",
1.48 + interfaces: [nsIDOMMozAlarmsManager],
1.49 + flags: nsIClassInfo.DOM_OBJECT }),
1.50 +
1.51 + add: function add(aDate, aRespectTimezone, aData) {
1.52 + debug("add()");
1.53 +
1.54 + if (!this._manifestURL) {
1.55 + debug("Cannot add alarms for non-installed apps.");
1.56 + throw Components.results.NS_ERROR_FAILURE;
1.57 + }
1.58 +
1.59 + if (!aDate) {
1.60 + throw Components.results.NS_ERROR_INVALID_ARG;
1.61 + }
1.62 +
1.63 + let isIgnoreTimezone = true;
1.64 + switch (aRespectTimezone) {
1.65 + case "honorTimezone":
1.66 + isIgnoreTimezone = false;
1.67 + break;
1.68 +
1.69 + case "ignoreTimezone":
1.70 + isIgnoreTimezone = true;
1.71 + break;
1.72 +
1.73 + default:
1.74 + throw Components.results.NS_ERROR_INVALID_ARG;
1.75 + break;
1.76 + }
1.77 +
1.78 + // Run JSON.stringify() in the sand box with the principal of the calling
1.79 + // web page to ensure no cross-origin object is involved. A "Permission
1.80 + // Denied" error will be thrown in case of privilege violation.
1.81 + let sandbox = new Cu.Sandbox(this._window.document.nodePrincipal);
1.82 + sandbox.data = aData;
1.83 + let data = Cu.evalInSandbox("JSON.stringify(data)", sandbox);
1.84 + let request = this.createRequest();
1.85 + this._cpmm.sendAsyncMessage(
1.86 + "AlarmsManager:Add",
1.87 + { requestId: this.getRequestId(request),
1.88 + date: aDate,
1.89 + ignoreTimezone: isIgnoreTimezone,
1.90 + data: JSON.parse(data),
1.91 + pageURL: this._pageURL,
1.92 + manifestURL: this._manifestURL }
1.93 + );
1.94 + return request;
1.95 + },
1.96 +
1.97 + remove: function remove(aId) {
1.98 + debug("remove()");
1.99 +
1.100 + this._cpmm.sendAsyncMessage(
1.101 + "AlarmsManager:Remove",
1.102 + { id: aId, manifestURL: this._manifestURL }
1.103 + );
1.104 + },
1.105 +
1.106 + getAll: function getAll() {
1.107 + debug("getAll()");
1.108 +
1.109 + let request = this.createRequest();
1.110 + this._cpmm.sendAsyncMessage(
1.111 + "AlarmsManager:GetAll",
1.112 + { requestId: this.getRequestId(request), manifestURL: this._manifestURL }
1.113 + );
1.114 + return request;
1.115 + },
1.116 +
1.117 + receiveMessage: function receiveMessage(aMessage) {
1.118 + debug("receiveMessage(): " + aMessage.name);
1.119 +
1.120 + let json = aMessage.json;
1.121 + let request = this.getRequest(json.requestId);
1.122 +
1.123 + if (!request) {
1.124 + debug("No request stored! " + json.requestId);
1.125 + return;
1.126 + }
1.127 +
1.128 + switch (aMessage.name) {
1.129 + case "AlarmsManager:Add:Return:OK":
1.130 + Services.DOMRequest.fireSuccess(request, json.id);
1.131 + break;
1.132 +
1.133 + case "AlarmsManager:GetAll:Return:OK":
1.134 + // We don't need to expose everything to the web content.
1.135 + let alarms = [];
1.136 + json.alarms.forEach(function trimAlarmInfo(aAlarm) {
1.137 + let alarm = { "id": aAlarm.id,
1.138 + "date": aAlarm.date,
1.139 + "respectTimezone": aAlarm.ignoreTimezone ?
1.140 + "ignoreTimezone" : "honorTimezone",
1.141 + "data": aAlarm.data };
1.142 + alarms.push(alarm);
1.143 + });
1.144 + Services.DOMRequest.fireSuccess(request,
1.145 + Cu.cloneInto(alarms, this._window));
1.146 + break;
1.147 +
1.148 + case "AlarmsManager:Add:Return:KO":
1.149 + Services.DOMRequest.fireError(request, json.errorMsg);
1.150 + break;
1.151 +
1.152 + case "AlarmsManager:GetAll:Return:KO":
1.153 + Services.DOMRequest.fireError(request, json.errorMsg);
1.154 + break;
1.155 +
1.156 + default:
1.157 + debug("Wrong message: " + aMessage.name);
1.158 + break;
1.159 + }
1.160 + this.removeRequest(json.requestId);
1.161 + },
1.162 +
1.163 + // nsIDOMGlobalPropertyInitializer implementation
1.164 + init: function init(aWindow) {
1.165 + debug("init()");
1.166 +
1.167 + // Set navigator.mozAlarms to null.
1.168 + if (!Services.prefs.getBoolPref("dom.mozAlarms.enabled")) {
1.169 + return null;
1.170 + }
1.171 +
1.172 + // Only pages with perm set can use the alarms.
1.173 + let principal = aWindow.document.nodePrincipal;
1.174 + let perm =
1.175 + Services.perms.testExactPermissionFromPrincipal(principal, "alarms");
1.176 + if (perm != Ci.nsIPermissionManager.ALLOW_ACTION) {
1.177 + return null;
1.178 + }
1.179 +
1.180 + // SystemPrincipal documents do not have any origin.
1.181 + // Reject them for now.
1.182 + if (!principal.URI) {
1.183 + return null;
1.184 + }
1.185 +
1.186 + this._cpmm = Cc["@mozilla.org/childprocessmessagemanager;1"]
1.187 + .getService(Ci.nsISyncMessageSender);
1.188 +
1.189 + // Add the valid messages to be listened.
1.190 + this.initDOMRequestHelper(aWindow, ["AlarmsManager:Add:Return:OK",
1.191 + "AlarmsManager:Add:Return:KO",
1.192 + "AlarmsManager:GetAll:Return:OK",
1.193 + "AlarmsManager:GetAll:Return:KO"]);
1.194 +
1.195 + // Get the manifest URL if this is an installed app
1.196 + let appsService = Cc["@mozilla.org/AppsService;1"]
1.197 + .getService(Ci.nsIAppsService);
1.198 + this._pageURL = principal.URI.spec;
1.199 + this._manifestURL = appsService.getManifestURLByLocalId(principal.appId);
1.200 + this._window = aWindow;
1.201 + },
1.202 +
1.203 + // Called from DOMRequestIpcHelper.
1.204 + uninit: function uninit() {
1.205 + debug("uninit()");
1.206 + },
1.207 +}
1.208 +
1.209 +this.NSGetFactory = XPCOMUtils.generateNSGetFactory([AlarmsManager])
