The Tor Browser / file revision

 /* 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/. */

 const Cc = Components.classes;

 const Ci = Components.interfaces;

 const Cu = Components.utils;

 const Cr = Components.results;

 Cu.import("resource://gre/modules/XPCOMUtils.jsm");

 Cu.import("resource://gre/modules/Services.jsm");

 const kPhishWardenEnabledPref = "browser.safebrowsing.enabled";

 const kMalwareWardenEnabledPref = "browser.safebrowsing.malware.enabled";

 // This XPCOM object doesn't have a public interface. It just works quietly in the background

 function SafeBrowsing() {

   this.listManager = null;

   // Once we register tables, their respective names will be listed here.

   this.phishing = {

     pref: kPhishWardenEnabledPref,

     blackTables: [],

     whiteTables: []

   };

   this.malware = {

     pref: kMalwareWardenEnabledPref,

     blackTables: [],

     whiteTables: []

   };

   // Get notifications when the phishing or malware warden enabled pref changes

   Services.prefs.addObserver(kPhishWardenEnabledPref, this, true);

   Services.prefs.addObserver(kMalwareWardenEnabledPref, this, true);

 }

 SafeBrowsing.prototype = {

   classID: Components.ID("{aadaed90-6c03-42d0-924a-fc61198ff283}"),

   QueryInterface: XPCOMUtils.generateQI([Ci.nsISessionStore,

                                          Ci.nsIDOMEventListener,

                                          Ci.nsIObserver,

                                          Ci.nsISupportsWeakReference]),

   observe: function sb_observe(aSubject, aTopic, aData) {

     switch (aTopic) {

       case "app-startup":

         Services.obs.addObserver(this, "final-ui-startup", true);

         Services.obs.addObserver(this, "xpcom-shutdown", true);

         break;

       case "final-ui-startup":

         Services.obs.removeObserver(this, "final-ui-startup");

         this._startup();

         break;

       case "xpcom-shutdown":

         Services.obs.removeObserver(this, "xpcom-shutdown");

         this._shutdown();

         break;

       case "nsPref:changed":

         if (aData == kPhishWardenEnabledPref)

           this.maybeToggleUpdateChecking(this.phishing);

         else if (aData == kMalwareWardenEnabledPref)

           this.maybeToggleUpdateChecking(this.malware);

         break;

     }

   },

   _startup: function sb_startup() {

     this.listManager = Cc["@mozilla.org/url-classifier/listmanager;1"].getService(Ci.nsIUrlListManager);

     // Add a test chunk to the database

     let testData = "itisatrap.org/firefox/its-an-attack.html";

     let testUpdate =

       "n:1000\ni:test-malware-simple\nad:1\n" +

       "a:1:32:" + testData.length + "\n" +

       testData;

     testData = "itisatrap.org/firefox/its-a-trap.html";

     testUpdate +=

       "n:1000\ni:test-phish-simple\nad:1\n" +

       "a:1:32:" + testData.length + "\n" +

       testData;

     let dbService = Cc["@mozilla.org/url-classifier/dbservice;1"].getService(Ci.nsIUrlClassifierDBService);

     let listener = {

       QueryInterface: function(aIID) {

         if (aIID.equals(Ci.nsISupports) || aIID.equals(Ci.nsIUrlClassifierUpdateObserver))

           return this;

         throw Cr.NS_ERROR_NO_INTERFACE;

       },

       updateUrlRequested: function(aURL) { },

       streamFinished: function(aStatus) { },

       updateError: function(aErrorCode) { },

       updateSuccess: function(aRequestedTimeout) { }

     };

     try {

       dbService.beginUpdate(listener, "test-malware-simple,test-phish-simple", "");

       dbService.beginStream("", "");

       dbService.updateStream(testUpdate);

       dbService.finishStream();

       dbService.finishUpdate();

     } catch(ex) {}

     this.registerBlackTable("goog-malware-shavar", this.malware);

     this.maybeToggleUpdateChecking(this.malware);

     this.registerBlackTable("goog-phish-shavar", this.phishing);

     this.maybeToggleUpdateChecking(this.phishing);

   },

   _shutdown: function sb_shutdown() {

     Services.prefs.removeObserver(kPhishWardenEnabledPref, this);

     Services.prefs.removeObserver(kMalwareWardenEnabledPref, this);

     this.listManager = null;

   },

   enableBlacklistTableUpdates: function sb_enableBlacklistTableUpdates(aWarden) {

     for (let i = 0; i < aWarden.blackTables.length; ++i) {

       this.listManager.enableUpdate(aWarden.blackTables[i]);

     }

   },

   disableBlacklistTableUpdates: function sb_disableBlacklistTableUpdates(aWarden) {

     for (let i = 0; i < aWarden.blackTables.length; ++i) {

       this.listManager.disableUpdate(aWarden.blackTables[i]);

     }

   },

   enableWhitelistTableUpdates: function sb_enableWhitelistTableUpdates(aWarden) {

     for (let i = 0; i < this.whiteTables.length; ++i) {

       this.listManager.enableUpdate(this.whiteTables[i]);

     }

   },

   disableWhitelistTableUpdates: function sb_disableWhitelistTableUpdates(aWarden) {

     for (let i = 0; i < aWarden.whiteTables.length; ++i) {

       this.listManager.disableUpdate(aWarden.whiteTables[i]);

     }

   },

   registerBlackTable: function sb_registerBlackTable(aTableName, aWarden) {

     let result = this.listManager.registerTable(aTableName, false);

     if (result)

       aWarden.blackTables.push(aTableName);

     return result;

   },

   registerWhiteTable: function sb_registerWhiteTable(aTableName, aWarden) {

     let result = this.listManager.registerTable(aTableName, false);

     if (result)

       aWarden.whiteTables.push(aTableName);

     return result;

   },

   maybeToggleUpdateChecking: function sb_maybeToggleUpdateChecking(aWarden) {

     let enabled = Services.prefs.getBoolPref(aWarden.pref);

     if (enabled)

       this.enableBlacklistTableUpdates(aWarden);

     else

       this.disableBlacklistTableUpdates(aWarden);

   }

 }

 this.NSGetFactory = XPCOMUtils.generateNSGetFactory([SafeBrowsing]);