gecko/toolkit/mozapps/extensions/amContentHandler.js

88 lines
2.8 KiB
JavaScript

/* 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 Cc = Components.classes;
const Ci = Components.interfaces;
const Cr = Components.results;
const XPI_CONTENT_TYPE = "application/x-xpinstall";
Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
function amContentHandler() {
}
amContentHandler.prototype = {
/**
* Handles a new request for an application/x-xpinstall file.
*
* @param aMimetype
* The mimetype of the file
* @param aContext
* The context passed to nsIChannel.asyncOpen
* @param aRequest
* The nsIRequest dealing with the content
*/
handleContent: function XCH_handleContent(aMimetype, aContext, aRequest) {
if (aMimetype != XPI_CONTENT_TYPE)
throw Cr.NS_ERROR_WONT_HANDLE_CONTENT;
if (!(aRequest instanceof Ci.nsIChannel))
throw Cr.NS_ERROR_WONT_HANDLE_CONTENT;
let uri = aRequest.URI;
let window = null;
let callbacks = aRequest.notificationCallbacks ?
aRequest.notificationCallbacks :
aRequest.loadGroup.notificationCallbacks;
if (callbacks)
window = callbacks.getInterface(Ci.nsIDOMWindow);
aRequest.cancel(Cr.NS_BINDING_ABORTED);
let appinfo = Cc["@mozilla.org/xre/app-info;1"].
getService(Ci.nsIXULRuntime);
if (appinfo.processType == Ci.nsIXULRuntime.PROCESS_TYPE_CONTENT) {
try {
if (!window.InstallTrigger)
window = window.wrappedJSObject;
if (window.InstallTrigger)
window.InstallTrigger.startSoftwareUpdate(uri.spec);
else
this.log("Window does not have an InstallTrigger");
} catch(ex) {
this.log(ex);
}
}
else {
let referer = null;
if (aRequest instanceof Ci.nsIPropertyBag2) {
referer = aRequest.getPropertyAsInterface("docshell.internalReferrer",
Ci.nsIURI);
}
let manager = Cc["@mozilla.org/addons/integration;1"].
getService(Ci.amIWebInstaller);
manager.installAddonsFromWebpage(aMimetype, window, referer, [uri.spec],
[null], [null], [null], null, 1);
}
},
classID: Components.ID("{7beb3ba8-6ec3-41b4-b67c-da89b8518922}"),
QueryInterface: XPCOMUtils.generateQI([Ci.nsIContentHandler]),
log : function(aMsg) {
let msg = "amContentHandler.js: " + (aMsg.join ? aMsg.join("") : aMsg);
Cc["@mozilla.org/consoleservice;1"].getService(Ci.nsIConsoleService).
logStringMessage(msg);
dump(msg + "\n");
}
};
var NSGetFactory = XPCOMUtils.generateNSGetFactory([amContentHandler]);