1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/toolkit/mozapps/extensions/amInstallTrigger.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,204 @@
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
1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.7 +
1.8 +"use strict";
1.9 +
1.10 +const {classes: Cc, interfaces: Ci, utils: Cu} = Components;
1.11 +
1.12 +Cu.import("resource://gre/modules/XPCOMUtils.jsm");
1.13 +Cu.import("resource://gre/modules/Services.jsm");
1.14 +Cu.import("resource://gre/modules/Preferences.jsm");
1.15 +Cu.import("resource://gre/modules/Log.jsm");
1.16 +
1.17 +const XPINSTALL_MIMETYPE = "application/x-xpinstall";
1.18 +
1.19 +const MSG_INSTALL_ENABLED = "WebInstallerIsInstallEnabled";
1.20 +const MSG_INSTALL_ADDONS = "WebInstallerInstallAddonsFromWebpage";
1.21 +const MSG_INSTALL_CALLBACK = "WebInstallerInstallCallback";
1.22 +
1.23 +
1.24 +let log = Log.repository.getLogger("AddonManager.InstallTrigger");
1.25 +log.level = Log.Level[Preferences.get("extensions.logging.enabled", false) ? "Warn" : "Trace"];
1.26 +
1.27 +function CallbackObject(id, callback, urls, mediator) {
1.28 + this.id = id;
1.29 + this.callback = callback;
1.30 + this.urls = new Set(urls);
1.31 + this.callCallback = function(url, status) {
1.32 + try {
1.33 + this.callback(url, status);
1.34 + }
1.35 + catch (e) {
1.36 + log.warn("InstallTrigger callback threw an exception: " + e);
1.37 + }
1.38 +
1.39 + this.urls.delete(url);
1.40 + if (this.urls.size == 0)
1.41 + mediator._callbacks.delete(id);
1.42 + };
1.43 +}
1.44 +
1.45 +function RemoteMediator(windowID) {
1.46 + this._windowID = windowID;
1.47 + this._lastCallbackID = 0;
1.48 + this._callbacks = new Map();
1.49 + this.mm = Cc["@mozilla.org/childprocessmessagemanager;1"]
1.50 + .getService(Ci.nsISyncMessageSender);
1.51 + this.mm.addWeakMessageListener(MSG_INSTALL_CALLBACK, this);
1.52 +}
1.53 +
1.54 +RemoteMediator.prototype = {
1.55 + receiveMessage: function(message) {
1.56 + if (message.name == MSG_INSTALL_CALLBACK) {
1.57 + let payload = message.data;
1.58 + let callbackHandler = this._callbacks.get(payload.callbackID);
1.59 + if (callbackHandler) {
1.60 + callbackHandler.callCallback(payload.url, payload.status);
1.61 + }
1.62 + }
1.63 + },
1.64 +
1.65 + enabled: function(url) {
1.66 + let params = {
1.67 + referer: url,
1.68 + mimetype: XPINSTALL_MIMETYPE
1.69 + };
1.70 + return this.mm.sendSyncMessage(MSG_INSTALL_ENABLED, params)[0];
1.71 + },
1.72 +
1.73 + install: function(installs, referer, callback, window) {
1.74 + let callbackID = this._addCallback(callback, installs.uris);
1.75 +
1.76 + installs.mimetype = XPINSTALL_MIMETYPE;
1.77 + installs.referer = referer;
1.78 + installs.callbackID = callbackID;
1.79 +
1.80 + return this.mm.sendSyncMessage(MSG_INSTALL_ADDONS, installs, {win: window})[0];
1.81 + },
1.82 +
1.83 + _addCallback: function(callback, urls) {
1.84 + if (!callback || typeof callback != "function")
1.85 + return -1;
1.86 +
1.87 + let callbackID = this._windowID + "-" + ++this._lastCallbackID;
1.88 + let callbackObject = new CallbackObject(callbackID, callback, urls, this);
1.89 + this._callbacks.set(callbackID, callbackObject);
1.90 + return callbackID;
1.91 + },
1.92 +
1.93 + QueryInterface: XPCOMUtils.generateQI([Ci.nsISupportsWeakReference])
1.94 +};
1.95 +
1.96 +
1.97 +function InstallTrigger() {
1.98 +}
1.99 +
1.100 +InstallTrigger.prototype = {
1.101 + // Here be magic. We've declared ourselves as providing the
1.102 + // nsIDOMGlobalPropertyInitializer interface, and are registered in the
1.103 + // "JavaScript-global-property" category in the XPCOM category manager. This
1.104 + // means that for newly created windows, XPCOM will createinstance this
1.105 + // object, and then call init, passing in the window for which we need to
1.106 + // provide an instance. We then initialize ourselves and return the webidl
1.107 + // version of this object using the webidl-provided _create method, which
1.108 + // XPCOM will then duly expose as a property value on the window. All this
1.109 + // indirection is necessary because webidl does not (yet) support statics
1.110 + // (bug 863952). See bug 926712 for more details about this implementation.
1.111 + init: function(window) {
1.112 + this._window = window;
1.113 + this._principal = window.document.nodePrincipal;
1.114 + this._url = window.document.documentURIObject;
1.115 +
1.116 + window.QueryInterface(Components.interfaces.nsIInterfaceRequestor);
1.117 + let utils = window.getInterface(Components.interfaces.nsIDOMWindowUtils);
1.118 + this._mediator = new RemoteMediator(utils.currentInnerWindowID);
1.119 +
1.120 + return window.InstallTriggerImpl._create(window, this);
1.121 + },
1.122 +
1.123 + enabled: function() {
1.124 + return this._mediator.enabled(this._url.spec);
1.125 + },
1.126 +
1.127 + updateEnabled: function() {
1.128 + return this.enabled();
1.129 + },
1.130 +
1.131 + install: function(installs, callback) {
1.132 + let installData = {
1.133 + uris: [],
1.134 + hashes: [],
1.135 + names: [],
1.136 + icons: [],
1.137 + };
1.138 +
1.139 + for (let name of Object.keys(installs)) {
1.140 + let item = installs[name];
1.141 + if (typeof item === "string") {
1.142 + item = { URL: item };
1.143 + }
1.144 + if (!item.URL) {
1.145 + throw new this._window.DOMError("Error", "Missing URL property for '" + name + "'");
1.146 + }
1.147 +
1.148 + let url = this._resolveURL(item.URL);
1.149 + if (!this._checkLoadURIFromScript(url)) {
1.150 + throw new this._window.DOMError("SecurityError", "Insufficient permissions to install: " + url.spec);
1.151 + }
1.152 +
1.153 + let iconUrl = null;
1.154 + if (item.IconURL) {
1.155 + iconUrl = this._resolveURL(item.IconURL);
1.156 + if (!this._checkLoadURIFromScript(iconUrl)) {
1.157 + iconUrl = null; // If page can't load the icon, just ignore it
1.158 + }
1.159 + }
1.160 +
1.161 + installData.uris.push(url.spec);
1.162 + installData.hashes.push(item.Hash || null);
1.163 + installData.names.push(name);
1.164 + installData.icons.push(iconUrl ? iconUrl.spec : null);
1.165 + }
1.166 +
1.167 + return this._mediator.install(installData, this._url.spec, callback, this._window);
1.168 + },
1.169 +
1.170 + startSoftwareUpdate: function(url, flags) {
1.171 + let filename = Services.io.newURI(url, null, null)
1.172 + .QueryInterface(Ci.nsIURL)
1.173 + .filename;
1.174 + let args = {};
1.175 + args[filename] = { "URL": url };
1.176 + return this.install(args);
1.177 + },
1.178 +
1.179 + installChrome: function(type, url, skin) {
1.180 + return this.startSoftwareUpdate(url);
1.181 + },
1.182 +
1.183 + _resolveURL: function (url) {
1.184 + return Services.io.newURI(url, null, this._url);
1.185 + },
1.186 +
1.187 + _checkLoadURIFromScript: function(uri) {
1.188 + let secman = Services.scriptSecurityManager;
1.189 + try {
1.190 + secman.checkLoadURIWithPrincipal(this._principal,
1.191 + uri,
1.192 + secman.DISALLOW_INHERIT_PRINCIPAL);
1.193 + return true;
1.194 + }
1.195 + catch(e) {
1.196 + return false;
1.197 + }
1.198 + },
1.199 +
1.200 + classID: Components.ID("{9df8ef2b-94da-45c9-ab9f-132eb55fddf1}"),
1.201 + contractID: "@mozilla.org/addons/installtrigger;1",
1.202 + QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports, Ci.nsIDOMGlobalPropertyInitializer])
1.203 +};
1.204 +
1.205 +
1.206 +
1.207 +this.NSGetFactory = XPCOMUtils.generateNSGetFactory([InstallTrigger]);
