michael@0: // -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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: let Cc = Components.classes;
michael@0: let Ci = Components.interfaces;
michael@0: let Cu = Components.utils;
michael@0: 
michael@0: Cu.import("resource://gre/modules/Services.jsm");
michael@0: Cu.import("resource://gre/modules/XPCOMUtils.jsm");
michael@0: Cu.import("resource://gre/modules/LoadContextInfo.jsm");
michael@0: Cu.import("resource://gre/modules/FormHistory.jsm");
michael@0: Cu.import("resource://gre/modules/Messaging.jsm");
michael@0: 
michael@0: function dump(a) {
michael@0:   Services.console.logStringMessage(a);
michael@0: }
michael@0: 
michael@0: this.EXPORTED_SYMBOLS = ["Sanitizer"];
michael@0: 
michael@0: let downloads = {
michael@0:   dlmgr: Cc["@mozilla.org/download-manager;1"].getService(Ci.nsIDownloadManager),
michael@0: 
michael@0:   iterate: function (aCallback) {
michael@0:     let dlmgr = downloads.dlmgr;
michael@0:     let dbConn = dlmgr.DBConnection;
michael@0:     let stmt = dbConn.createStatement("SELECT id FROM moz_downloads WHERE " +
michael@0:         "state = ? OR state = ? OR state = ? OR state = ? OR state = ? OR state = ?");
michael@0:     stmt.bindInt32Parameter(0, Ci.nsIDownloadManager.DOWNLOAD_FINISHED);
michael@0:     stmt.bindInt32Parameter(1, Ci.nsIDownloadManager.DOWNLOAD_FAILED);
michael@0:     stmt.bindInt32Parameter(2, Ci.nsIDownloadManager.DOWNLOAD_CANCELED);
michael@0:     stmt.bindInt32Parameter(3, Ci.nsIDownloadManager.DOWNLOAD_BLOCKED_PARENTAL);
michael@0:     stmt.bindInt32Parameter(4, Ci.nsIDownloadManager.DOWNLOAD_BLOCKED_POLICY);
michael@0:     stmt.bindInt32Parameter(5, Ci.nsIDownloadManager.DOWNLOAD_DIRTY);
michael@0:     while (stmt.executeStep()) {
michael@0:       aCallback(dlmgr.getDownload(stmt.row.id));
michael@0:     }
michael@0:     stmt.finalize();
michael@0:   },
michael@0: 
michael@0:   get canClear() {
michael@0:     return this.dlmgr.canCleanUp;
michael@0:   }
michael@0: };
michael@0: 
michael@0: function Sanitizer() {}
michael@0: Sanitizer.prototype = {
michael@0:   clearItem: function (aItemName)
michael@0:   {
michael@0:     let item = this.items[aItemName];
michael@0:     let canClear = item.canClear;
michael@0:     if (typeof canClear == "function") {
michael@0:       canClear(function clearCallback(aCanClear) {
michael@0:         if (aCanClear)
michael@0:           item.clear();
michael@0:       });
michael@0:     } else if (canClear) {
michael@0:       item.clear();
michael@0:     }
michael@0:   },
michael@0: 
michael@0:   items: {
michael@0:     cache: {
michael@0:       clear: function ()
michael@0:       {
michael@0:         var cache = Cc["@mozilla.org/netwerk/cache-storage-service;1"].getService(Ci.nsICacheStorageService);
michael@0:         try {
michael@0:           cache.clear();
michael@0:         } catch(er) {}
michael@0: 
michael@0:         let imageCache = Cc["@mozilla.org/image/tools;1"].getService(Ci.imgITools)
michael@0:                                                          .getImgCacheForDocument(null);
michael@0:         try {
michael@0:           imageCache.clearCache(false); // true=chrome, false=content
michael@0:         } catch(er) {}
michael@0:       },
michael@0: 
michael@0:       get canClear()
michael@0:       {
michael@0:         return true;
michael@0:       }
michael@0:     },
michael@0: 
michael@0:     cookies: {
michael@0:       clear: function ()
michael@0:       {
michael@0:         Services.cookies.removeAll();
michael@0:       },
michael@0: 
michael@0:       get canClear()
michael@0:       {
michael@0:         return true;
michael@0:       }
michael@0:     },
michael@0: 
michael@0:     siteSettings: {
michael@0:       clear: function ()
michael@0:       {
michael@0:         // Clear site-specific permissions like "Allow this site to open popups"
michael@0:         Services.perms.removeAll();
michael@0: 
michael@0:         // Clear site-specific settings like page-zoom level
michael@0:         Cc["@mozilla.org/content-pref/service;1"]
michael@0:           .getService(Ci.nsIContentPrefService2)
michael@0:           .removeAllDomains(null);
michael@0: 
michael@0:         // Clear "Never remember passwords for this site", which is not handled by
michael@0:         // the permission manager
michael@0:         var hosts = Services.logins.getAllDisabledHosts({})
michael@0:         for (var host of hosts) {
michael@0:           Services.logins.setLoginSavingEnabled(host, true);
michael@0:         }
michael@0:       },
michael@0: 
michael@0:       get canClear()
michael@0:       {
michael@0:         return true;
michael@0:       }
michael@0:     },
michael@0: 
michael@0:     offlineApps: {
michael@0:       clear: function ()
michael@0:       {
michael@0:         var cacheService = Cc["@mozilla.org/netwerk/cache-storage-service;1"].getService(Ci.nsICacheStorageService);
michael@0:         var appCacheStorage = cacheService.appCacheStorage(LoadContextInfo.default, null);
michael@0:         try {
michael@0:           appCacheStorage.asyncEvictStorage(null);
michael@0:         } catch(er) {}
michael@0:       },
michael@0: 
michael@0:       get canClear()
michael@0:       {
michael@0:           return true;
michael@0:       }
michael@0:     },
michael@0: 
michael@0:     history: {
michael@0:       clear: function ()
michael@0:       {
michael@0:         sendMessageToJava({ type: "Sanitize:ClearHistory" });
michael@0: 
michael@0:         try {
michael@0:           Services.obs.notifyObservers(null, "browser:purge-session-history", "");
michael@0:         }
michael@0:         catch (e) { }
michael@0: 
michael@0:         try {
michael@0:           var seer = Cc["@mozilla.org/network/seer;1"].getService(Ci.nsINetworkSeer);
michael@0:           seer.reset();
michael@0:         } catch (e) { }
michael@0:       },
michael@0: 
michael@0:       get canClear()
michael@0:       {
michael@0:         // bug 347231: Always allow clearing history due to dependencies on
michael@0:         // the browser:purge-session-history notification. (like error console)
michael@0:         return true;
michael@0:       }
michael@0:     },
michael@0: 
michael@0:     formdata: {
michael@0:       clear: function ()
michael@0:       {
michael@0:         FormHistory.update({ op: "remove" });
michael@0:       },
michael@0: 
michael@0:       canClear: function (aCallback)
michael@0:       {
michael@0:         let count = 0;
michael@0:         let countDone = {
michael@0:           handleResult: function(aResult) { count = aResult; },
michael@0:           handleError: function(aError) { Cu.reportError(aError); },
michael@0:           handleCompletion: function(aReason) { aCallback(aReason == 0 && count > 0); }
michael@0:         };
michael@0:         FormHistory.count({}, countDone);
michael@0:       }
michael@0:     },
michael@0: 
michael@0:     downloadFiles: {
michael@0:       clear: function ()
michael@0:       {
michael@0:         downloads.iterate(function (dl) {
michael@0:           // Delete the downloaded files themselves
michael@0:           let f = dl.targetFile;
michael@0:           if (f.exists()) {
michael@0:             f.remove(false);
michael@0:           }
michael@0: 
michael@0:           // Also delete downloads from history
michael@0:           dl.remove();
michael@0:         });
michael@0:       },
michael@0: 
michael@0:       get canClear()
michael@0:       {
michael@0:         return downloads.canClear;
michael@0:       }
michael@0:     },
michael@0: 
michael@0:     passwords: {
michael@0:       clear: function ()
michael@0:       {
michael@0:         Services.logins.removeAllLogins();
michael@0:       },
michael@0: 
michael@0:       get canClear()
michael@0:       {
michael@0:         let count = Services.logins.countLogins("", "", ""); // count all logins
michael@0:         return (count > 0);
michael@0:       }
michael@0:     },
michael@0: 
michael@0:     sessions: {
michael@0:       clear: function ()
michael@0:       {
michael@0:         // clear all auth tokens
michael@0:         var sdr = Cc["@mozilla.org/security/sdr;1"].getService(Ci.nsISecretDecoderRing);
michael@0:         sdr.logoutAndTeardown();
michael@0: 
michael@0:         // clear FTP and plain HTTP auth sessions
michael@0:         Services.obs.notifyObservers(null, "net:clear-active-logins", null);
michael@0:       },
michael@0: 
michael@0:       get canClear()
michael@0:       {
michael@0:         return true;
michael@0:       }
michael@0:     }
michael@0:   }
michael@0: };
michael@0: 
michael@0: this.Sanitizer = new Sanitizer();