1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
|
/* 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 {classes: Cc, interfaces: Ci, utils: Cu} = Components;
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.import("resource://gre/modules/Services.jsm");
Cu.import("resource://gre/modules/Preferences.jsm");
Cu.import("resource://gre/modules/Log.jsm");
const XPINSTALL_MIMETYPE = "application/x-xpinstall";
const MSG_INSTALL_ENABLED = "WebInstallerIsInstallEnabled";
const MSG_INSTALL_ADDONS = "WebInstallerInstallAddonsFromWebpage";
const MSG_INSTALL_CALLBACK = "WebInstallerInstallCallback";
var log = Log.repository.getLogger("AddonManager.InstallTrigger");
log.level = Log.Level[Preferences.get("extensions.logging.enabled", false) ? "Warn" : "Trace"];
function CallbackObject(id, callback, urls, mediator) {
this.id = id;
this.callback = callback;
this.urls = new Set(urls);
this.callCallback = function(url, status) {
try {
this.callback(url, status);
}
catch (e) {
log.warn("InstallTrigger callback threw an exception: " + e);
}
this.urls.delete(url);
if (this.urls.size == 0)
mediator._callbacks.delete(id);
};
}
function RemoteMediator(window) {
window.QueryInterface(Ci.nsIInterfaceRequestor);
let utils = window.getInterface(Ci.nsIDOMWindowUtils);
this._windowID = utils.currentInnerWindowID;
this.mm = window
.getInterface(Ci.nsIDocShell)
.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIContentFrameMessageManager);
this.mm.addWeakMessageListener(MSG_INSTALL_CALLBACK, this);
this._lastCallbackID = 0;
this._callbacks = new Map();
}
RemoteMediator.prototype = {
receiveMessage: function(message) {
if (message.name == MSG_INSTALL_CALLBACK) {
let payload = message.data;
let callbackHandler = this._callbacks.get(payload.callbackID);
if (callbackHandler) {
callbackHandler.callCallback(payload.url, payload.status);
}
}
},
enabled: function(url) {
let params = {
mimetype: XPINSTALL_MIMETYPE
};
return this.mm.sendSyncMessage(MSG_INSTALL_ENABLED, params)[0];
},
install: function(installs, principal, callback, window) {
let callbackID = this._addCallback(callback, installs.uris);
installs.mimetype = XPINSTALL_MIMETYPE;
installs.triggeringPrincipal = principal;
installs.callbackID = callbackID;
if (Services.appinfo.processType == Ci.nsIXULRuntime.PROCESS_TYPE_DEFAULT) {
// When running in the main process this might be a frame inside an
// in-content UI page, walk up to find the first frame element in a chrome
// privileged document
let element = window.frameElement;
let ssm = Services.scriptSecurityManager;
while (element && !ssm.isSystemPrincipal(element.ownerDocument.nodePrincipal))
element = element.ownerDocument.defaultView.frameElement;
if (element) {
let listener = Cc["@mozilla.org/addons/integration;1"].
getService(Ci.nsIMessageListener);
return listener.wrappedJSObject.receiveMessage({
name: MSG_INSTALL_ADDONS,
target: element,
data: installs,
});
}
}
// Fall back to sending through the message manager
let messageManager = window.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIWebNavigation)
.QueryInterface(Ci.nsIDocShell)
.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIContentFrameMessageManager);
return messageManager.sendSyncMessage(MSG_INSTALL_ADDONS, installs)[0];
},
_addCallback: function(callback, urls) {
if (!callback || typeof callback != "function")
return -1;
let callbackID = this._windowID + "-" + ++this._lastCallbackID;
let callbackObject = new CallbackObject(callbackID, callback, urls, this);
this._callbacks.set(callbackID, callbackObject);
return callbackID;
},
QueryInterface: XPCOMUtils.generateQI([Ci.nsISupportsWeakReference])
};
function InstallTrigger() {
}
InstallTrigger.prototype = {
// Here be magic. We've declared ourselves as providing the
// nsIDOMGlobalPropertyInitializer interface, and are registered in the
// "JavaScript-global-property" category in the XPCOM category manager. This
// means that for newly created windows, XPCOM will createinstance this
// object, and then call init, passing in the window for which we need to
// provide an instance. We then initialize ourselves and return the webidl
// version of this object using the webidl-provided _create method, which
// XPCOM will then duly expose as a property value on the window. All this
// indirection is necessary because webidl does not (yet) support statics
// (bug 863952). See bug 926712 for more details about this implementation.
init: function(window) {
this._window = window;
this._principal = window.document.nodePrincipal;
this._url = window.document.documentURIObject;
try {
this._mediator = new RemoteMediator(window);
} catch (ex) {
// If we can't set up IPC (e.g., because this is a top-level window
// or something), then don't expose InstallTrigger.
return null;
}
return window.InstallTriggerImpl._create(window, this);
},
enabled: function() {
return this._mediator.enabled(this._url.spec);
},
updateEnabled: function() {
return this.enabled();
},
install: function(installs, callback) {
let installData = {
uris: [],
hashes: [],
names: [],
icons: [],
};
for (let name of Object.keys(installs)) {
let item = installs[name];
if (typeof item === "string") {
item = { URL: item };
}
if (!item.URL) {
throw new this._window.Error("Missing URL property for '" + name + "'");
}
let url = this._resolveURL(item.URL);
if (!this._checkLoadURIFromScript(url)) {
throw new this._window.Error("Insufficient permissions to install: " + url.spec);
}
let iconUrl = null;
if (item.IconURL) {
iconUrl = this._resolveURL(item.IconURL);
if (!this._checkLoadURIFromScript(iconUrl)) {
iconUrl = null; // If page can't load the icon, just ignore it
}
}
installData.uris.push(url.spec);
installData.hashes.push(item.Hash || null);
installData.names.push(name);
installData.icons.push(iconUrl ? iconUrl.spec : null);
}
return this._mediator.install(installData, this._principal, callback, this._window);
},
startSoftwareUpdate: function(url, flags) {
let filename = Services.io.newURI(url, null, null)
.QueryInterface(Ci.nsIURL)
.filename;
let args = {};
args[filename] = { "URL": url };
return this.install(args);
},
installChrome: function(type, url, skin) {
return this.startSoftwareUpdate(url);
},
_resolveURL: function(url) {
return Services.io.newURI(url, null, this._url);
},
_checkLoadURIFromScript: function(uri) {
let secman = Services.scriptSecurityManager;
try {
secman.checkLoadURIWithPrincipal(this._principal,
uri,
secman.DISALLOW_INHERIT_PRINCIPAL);
return true;
}
catch (e) {
return false;
}
},
classID: Components.ID("{9df8ef2b-94da-45c9-ab9f-132eb55fddf1}"),
contractID: "@mozilla.org/addons/installtrigger;1",
QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports, Ci.nsIDOMGlobalPropertyInitializer])
};
this.NSGetFactory = XPCOMUtils.generateNSGetFactory([InstallTrigger]);
|
