michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: "use strict";
michael@0: 
michael@0: const Cc = Components.classes;
michael@0: const Ci = Components.interfaces;
michael@0: const Cr = Components.results;
michael@0: 
michael@0: const XPI_CONTENT_TYPE = "application/x-xpinstall";
michael@0: 
michael@0: Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
michael@0: 
michael@0: function amContentHandler() {
michael@0: }
michael@0: 
michael@0: amContentHandler.prototype = {
michael@0:   /**
michael@0:    * Handles a new request for an application/x-xpinstall file.
michael@0:    *
michael@0:    * @param  aMimetype
michael@0:    *         The mimetype of the file
michael@0:    * @param  aContext
michael@0:    *         The context passed to nsIChannel.asyncOpen
michael@0:    * @param  aRequest
michael@0:    *         The nsIRequest dealing with the content
michael@0:    */
michael@0:   handleContent: function XCH_handleContent(aMimetype, aContext, aRequest) {
michael@0:     if (aMimetype != XPI_CONTENT_TYPE)
michael@0:       throw Cr.NS_ERROR_WONT_HANDLE_CONTENT;
michael@0: 
michael@0:     if (!(aRequest instanceof Ci.nsIChannel))
michael@0:       throw Cr.NS_ERROR_WONT_HANDLE_CONTENT;
michael@0: 
michael@0:     let uri = aRequest.URI;
michael@0: 
michael@0:     let window = null;
michael@0:     let callbacks = aRequest.notificationCallbacks ?
michael@0:                     aRequest.notificationCallbacks :
michael@0:                     aRequest.loadGroup.notificationCallbacks;
michael@0:     if (callbacks)
michael@0:       window = callbacks.getInterface(Ci.nsIDOMWindow);
michael@0: 
michael@0:     aRequest.cancel(Cr.NS_BINDING_ABORTED);
michael@0: 
michael@0:     let appinfo = Cc["@mozilla.org/xre/app-info;1"].
michael@0:                   getService(Ci.nsIXULRuntime);
michael@0:     if (appinfo.processType == Ci.nsIXULRuntime.PROCESS_TYPE_CONTENT) {
michael@0:       try {
michael@0:         if (!window.InstallTrigger) 
michael@0:           window = window.wrappedJSObject;
michael@0:   
michael@0:         if (window.InstallTrigger)
michael@0:           window.InstallTrigger.startSoftwareUpdate(uri.spec);
michael@0:         else
michael@0:           this.log("Window does not have an InstallTrigger");
michael@0:       } catch(ex) {
michael@0:         this.log(ex);
michael@0:       }
michael@0:     }
michael@0:     else {
michael@0:       let referer = null;
michael@0:       if (aRequest instanceof Ci.nsIPropertyBag2) {
michael@0:         referer = aRequest.getPropertyAsInterface("docshell.internalReferrer",
michael@0:                                                 Ci.nsIURI);
michael@0:       }
michael@0: 
michael@0:       let manager = Cc["@mozilla.org/addons/integration;1"].
michael@0:                     getService(Ci.amIWebInstaller);
michael@0:       manager.installAddonsFromWebpage(aMimetype, window, referer, [uri.spec],
michael@0:                                        [null], [null], [null], null, 1);
michael@0:     }
michael@0:   },
michael@0: 
michael@0:   classID: Components.ID("{7beb3ba8-6ec3-41b4-b67c-da89b8518922}"),
michael@0:   QueryInterface: XPCOMUtils.generateQI([Ci.nsIContentHandler]),
michael@0: 
michael@0:   log : function XCH_log(aMsg) {
michael@0:     let msg = "amContentHandler.js: " + (aMsg.join ? aMsg.join("") : aMsg);
michael@0:     Cc["@mozilla.org/consoleservice;1"].getService(Ci.nsIConsoleService).
michael@0:       logStringMessage(msg);
michael@0:     dump(msg + "\n");
michael@0:   }
michael@0: };
michael@0: 
michael@0: this.NSGetFactory = XPCOMUtils.generateNSGetFactory([amContentHandler]);