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: const Cc = Components.classes;
michael@0: const Ci = Components.interfaces;
michael@0: const Cu = Components.utils;
michael@0: const Cr = Components.results;
michael@0: 
michael@0: Cu.import("resource://gre/modules/XPCOMUtils.jsm");
michael@0: Cu.import("resource://gre/modules/Services.jsm");
michael@0: 
michael@0: const kPhishWardenEnabledPref = "browser.safebrowsing.enabled";
michael@0: const kMalwareWardenEnabledPref = "browser.safebrowsing.malware.enabled";
michael@0: 
michael@0: // This XPCOM object doesn't have a public interface. It just works quietly in the background
michael@0: function SafeBrowsing() {
michael@0:   this.listManager = null;
michael@0: 
michael@0:   // Once we register tables, their respective names will be listed here.
michael@0:   this.phishing = {
michael@0:     pref: kPhishWardenEnabledPref,
michael@0:     blackTables: [],
michael@0:     whiteTables: []
michael@0:   };
michael@0:   this.malware = {
michael@0:     pref: kMalwareWardenEnabledPref,
michael@0:     blackTables: [],
michael@0:     whiteTables: []
michael@0:   };
michael@0: 
michael@0:   // Get notifications when the phishing or malware warden enabled pref changes
michael@0:   Services.prefs.addObserver(kPhishWardenEnabledPref, this, true);
michael@0:   Services.prefs.addObserver(kMalwareWardenEnabledPref, this, true);
michael@0: }
michael@0: 
michael@0: SafeBrowsing.prototype = {
michael@0:   classID: Components.ID("{aadaed90-6c03-42d0-924a-fc61198ff283}"),
michael@0: 
michael@0:   QueryInterface: XPCOMUtils.generateQI([Ci.nsISessionStore,
michael@0:                                          Ci.nsIDOMEventListener,
michael@0:                                          Ci.nsIObserver,
michael@0:                                          Ci.nsISupportsWeakReference]),
michael@0: 
michael@0:   observe: function sb_observe(aSubject, aTopic, aData) {
michael@0:     switch (aTopic) {
michael@0:       case "app-startup":
michael@0:         Services.obs.addObserver(this, "final-ui-startup", true);
michael@0:         Services.obs.addObserver(this, "xpcom-shutdown", true);
michael@0:         break;
michael@0:       case "final-ui-startup":
michael@0:         Services.obs.removeObserver(this, "final-ui-startup");
michael@0:         this._startup();
michael@0:         break;
michael@0:       case "xpcom-shutdown":
michael@0:         Services.obs.removeObserver(this, "xpcom-shutdown");
michael@0:         this._shutdown();
michael@0:         break;
michael@0:       case "nsPref:changed":
michael@0:         if (aData == kPhishWardenEnabledPref)
michael@0:           this.maybeToggleUpdateChecking(this.phishing);
michael@0:         else if (aData == kMalwareWardenEnabledPref)
michael@0:           this.maybeToggleUpdateChecking(this.malware);
michael@0:         break;
michael@0:     }
michael@0:   },
michael@0: 
michael@0:   _startup: function sb_startup() {
michael@0:     this.listManager = Cc["@mozilla.org/url-classifier/listmanager;1"].getService(Ci.nsIUrlListManager);
michael@0: 
michael@0:     // Add a test chunk to the database
michael@0:     let testData = "itisatrap.org/firefox/its-an-attack.html";
michael@0:     let testUpdate =
michael@0:       "n:1000\ni:test-malware-simple\nad:1\n" +
michael@0:       "a:1:32:" + testData.length + "\n" +
michael@0:       testData;
michael@0: 
michael@0:     testData = "itisatrap.org/firefox/its-a-trap.html";
michael@0:     testUpdate +=
michael@0:       "n:1000\ni:test-phish-simple\nad:1\n" +
michael@0:       "a:1:32:" + testData.length + "\n" +
michael@0:       testData;
michael@0: 
michael@0:     let dbService = Cc["@mozilla.org/url-classifier/dbservice;1"].getService(Ci.nsIUrlClassifierDBService);
michael@0: 
michael@0:     let listener = {
michael@0:       QueryInterface: function(aIID) {
michael@0:         if (aIID.equals(Ci.nsISupports) || aIID.equals(Ci.nsIUrlClassifierUpdateObserver))
michael@0:           return this;
michael@0:         throw Cr.NS_ERROR_NO_INTERFACE;
michael@0:       },
michael@0: 
michael@0:       updateUrlRequested: function(aURL) { },
michael@0:       streamFinished: function(aStatus) { },
michael@0:       updateError: function(aErrorCode) { },
michael@0:       updateSuccess: function(aRequestedTimeout) { }
michael@0:     };
michael@0: 
michael@0:     try {
michael@0:       dbService.beginUpdate(listener, "test-malware-simple,test-phish-simple", "");
michael@0:       dbService.beginStream("", "");
michael@0:       dbService.updateStream(testUpdate);
michael@0:       dbService.finishStream();
michael@0:       dbService.finishUpdate();
michael@0:     } catch(ex) {}
michael@0: 
michael@0:     this.registerBlackTable("goog-malware-shavar", this.malware);
michael@0:     this.maybeToggleUpdateChecking(this.malware);
michael@0: 
michael@0:     this.registerBlackTable("goog-phish-shavar", this.phishing);
michael@0:     this.maybeToggleUpdateChecking(this.phishing);
michael@0:   },
michael@0: 
michael@0:   _shutdown: function sb_shutdown() {
michael@0:     Services.prefs.removeObserver(kPhishWardenEnabledPref, this);
michael@0:     Services.prefs.removeObserver(kMalwareWardenEnabledPref, this);
michael@0: 
michael@0:     this.listManager = null;
michael@0:   },
michael@0: 
michael@0:   enableBlacklistTableUpdates: function sb_enableBlacklistTableUpdates(aWarden) {
michael@0:     for (let i = 0; i < aWarden.blackTables.length; ++i) {
michael@0:       this.listManager.enableUpdate(aWarden.blackTables[i]);
michael@0:     }
michael@0:   },
michael@0: 
michael@0:   disableBlacklistTableUpdates: function sb_disableBlacklistTableUpdates(aWarden) {
michael@0:     for (let i = 0; i < aWarden.blackTables.length; ++i) {
michael@0:       this.listManager.disableUpdate(aWarden.blackTables[i]);
michael@0:     }
michael@0:   },
michael@0: 
michael@0:   enableWhitelistTableUpdates: function sb_enableWhitelistTableUpdates(aWarden) {
michael@0:     for (let i = 0; i < this.whiteTables.length; ++i) {
michael@0:       this.listManager.enableUpdate(this.whiteTables[i]);
michael@0:     }
michael@0:   },
michael@0: 
michael@0:   disableWhitelistTableUpdates: function sb_disableWhitelistTableUpdates(aWarden) {
michael@0:     for (let i = 0; i < aWarden.whiteTables.length; ++i) {
michael@0:       this.listManager.disableUpdate(aWarden.whiteTables[i]);
michael@0:     }
michael@0:   },
michael@0: 
michael@0:   registerBlackTable: function sb_registerBlackTable(aTableName, aWarden) {
michael@0:     let result = this.listManager.registerTable(aTableName, false);
michael@0:     if (result)
michael@0:       aWarden.blackTables.push(aTableName);
michael@0:     return result;
michael@0:   },
michael@0: 
michael@0:   registerWhiteTable: function sb_registerWhiteTable(aTableName, aWarden) {
michael@0:     let result = this.listManager.registerTable(aTableName, false);
michael@0:     if (result)
michael@0:       aWarden.whiteTables.push(aTableName);
michael@0:     return result;
michael@0:   },
michael@0: 
michael@0:   maybeToggleUpdateChecking: function sb_maybeToggleUpdateChecking(aWarden) {
michael@0:     let enabled = Services.prefs.getBoolPref(aWarden.pref);
michael@0:     if (enabled)
michael@0:       this.enableBlacklistTableUpdates(aWarden);
michael@0:     else
michael@0:       this.disableBlacklistTableUpdates(aWarden);
michael@0:   }
michael@0: }
michael@0: 
michael@0: this.NSGetFactory = XPCOMUtils.generateNSGetFactory([SafeBrowsing]);