346 строки
11 KiB
JavaScript
346 строки
11 KiB
JavaScript
/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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var EXPORTED_SYMBOLS = ["Sanitizer"];
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Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
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Components.utils.import("resource://gre/modules/Services.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "FormHistory",
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"resource://gre/modules/FormHistory.jsm");
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var Sanitizer = {
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get _prefs() {
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delete this._prefs;
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return this._prefs = Services.prefs.getBranch("privacy.sanitize.");
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},
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/**
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* Deletes privacy sensitive data in a batch, optionally showing the
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* sanitize UI, according to user preferences
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*
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* @returns null if everything's fine
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* an object in the form { itemName: error, ... } on (partial) failure
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*/
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sanitize: function(aParentWindow) {
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this.readSettings(aParentWindow);
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return this.doPendingSanitize();
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},
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clearSettings: function() {
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for (var itemName in this.items)
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this.items[itemName].willClear = false;
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},
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readSettings: function(aParentWindow) {
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var itemPrefs = Services.prefs.getBranch("privacy.item.");
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for (var itemName in this.items) {
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var item = this.items[itemName];
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if ("clear" in item)
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item.willClear = itemPrefs.getBoolPref(itemName);
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}
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if (this._prefs.getBoolPref("promptOnSanitize")) {
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// make this an app-modal window on Mac.
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var win = "nsILocalFileMac" in Components.interfaces ? null
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: aParentWindow;
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Services.ww.openWindow(win,
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"chrome://communicator/content/sanitize.xul",
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"Sanitize",
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"chrome,titlebar,centerscreen,dialog,modal",
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null);
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}
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},
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doPendingSanitize: function() {
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// do the actual sanitizing
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var errors = null;
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for (var itemName in this.items) {
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var item = this.items[itemName];
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if ("clear" in item && item.willClear && item.canClear) {
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// Some of these clear() may raise exceptions (see bug #265028)
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// to sanitize as much as possible, we catch and store them,
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// rather than fail fast.
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// Callers should check returned errors and give user feedback
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// about items that could not be sanitized
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try {
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item.clear();
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} catch(ex) {
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if (!errors)
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errors = {};
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errors[itemName] = ex;
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dump("Error sanitizing " + itemName + ": " + ex + "\n");
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}
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}
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}
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return errors;
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},
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// warning to the caller: this one may raise an exception (e.g. bug #265028)
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clearItem: function(aItemName) {
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if (this.items[aItemName].canClear)
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this.items[aItemName].clear();
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},
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setClearItem: function(aItemName, aWillClear) {
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this.items[aItemName].willClear = aWillClear;
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},
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willClearItem: function(aItemName) {
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return this.items[aItemName].willClear;
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},
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canClearItem: function(aItemName, aCallback, aArg) {
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var canClear = this.items[aItemName].canClear;
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if (typeof canClear == "function") {
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canClear(aCallback, aArg);
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return false;
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}
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aCallback(aItemName, canClear, aArg);
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return canClear;
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},
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// this is called on startup and shutdown, to perform pending sanitizations
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checkSettings: function() {
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if (this._prefs.getBoolPref("sanitizeOnShutdown") &&
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!this._prefs.prefHasUserValue("didShutdownSanitize"))
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this.readSettings();
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else
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this.clearSettings();
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},
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// clear plugin data
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_clearPluginData: function(aFlagName) {
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const nsIPluginHost = Components.interfaces.nsIPluginHost;
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var ph = Components.classes["@mozilla.org/plugin/host;1"]
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.getService(nsIPluginHost);
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if (!(aFlagName in nsIPluginHost))
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return;
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var flag = nsIPluginHost[aFlagName];
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var tags = ph.getPluginTags();
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for (var i = 0; i < tags.length; i++) {
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try {
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ph.clearSiteData(tags[i], null, flag, -1);
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} catch (ex) {
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// Ignore errors from the plugin
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}
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}
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},
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items: {
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cache: {
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clear: function() {
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// use try/catch for everything but the last task so we clear as much as possible
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try {
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Services.cache2.clear();
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} catch(ex) {}
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Components.classes["@mozilla.org/image/tools;1"]
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.getService(Components.interfaces.imgITools)
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.getImgCacheForDocument(null)
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.clearCache(false); // true=chrome, false=content
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},
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canClear: true
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},
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offlineApps: {
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clear: function() {
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// use try/catch for everything but the last task so we clear as much as possible
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try {
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Services.cache2
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.appCacheStorage(Services.loadContextInfo.default, null)
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.asyncEvictStorage(null);
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} catch(ex) {}
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},
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canClear: true
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},
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cookies: {
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clear: function() {
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var cookieMgr = Components.classes["@mozilla.org/cookiemanager;1"]
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.getService(Components.interfaces.nsICookieManager);
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cookieMgr.removeAll();
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Sanitizer._clearPluginData("FLAG_CLEAR_ALL");
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// clear any network geolocation provider sessions
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try {
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Services.prefs.deleteBranch("geo.wifi.access_token.");
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} catch (e) {}
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},
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canClear: true
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},
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history: {
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clear: function() {
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Components.utils.import("resource://gre/modules/PlacesUtils.jsm");
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// use try/catch for everything but the last task so we clear as much as possible
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try {
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PlacesUtils.history.clear();
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} catch(ex) {}
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try {
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var os = Components.classes["@mozilla.org/observer-service;1"]
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.getService(Components.interfaces.nsIObserverService);
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os.notifyObservers(null, "browser:purge-session-history");
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} catch(ex) {}
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},
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// bug 347231: Always allow clearing history due to dependencies on
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// the browser:purge-session-history notification. (like error console)
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canClear: true
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},
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urlbar: {
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clear: function() {
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// Clear last URL of the Open Web Location dialog
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try {
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Services.prefs.clearUserPref("general.open_location.last_url");
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} catch(ex) {}
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// Clear URLbar history (see also pref-history.js)
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var file = Components.classes["@mozilla.org/file/directory_service;1"]
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.getService(Components.interfaces.nsIProperties)
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.get("ProfD", Components.interfaces.nsIFile);
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file.append("urlbarhistory.sqlite");
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if (file.exists())
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file.remove(false);
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},
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get canClear() {
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if (!Services.prefs.prefIsLocked("general.open_location.last_url") &&
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Services.prefs.prefHasUserValue("general.open_location.last_url"))
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return true;
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var file = Components.classes["@mozilla.org/file/directory_service;1"]
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.getService(Components.interfaces.nsIProperties)
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.get("ProfD", Components.interfaces.nsIFile);
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file.append("urlbarhistory.sqlite");
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return file.exists();
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}
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},
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formdata: {
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clear: function() {
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// Clear undo history of all search and find bars.
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var windows = Services.wm.getEnumerator("navigator:browser");
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while (windows.hasMoreElements()) {
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var win = windows.getNext();
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var currentDocument = win.document;
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var findBar = currentDocument.getElementById("FindToolbar");
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if (findBar)
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findBar.clear();
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var searchBar = currentDocument.getElementById("searchbar");
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if (searchBar && searchBar.textbox)
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searchBar.textbox.reset();
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var sideSearchBar = win.BrowserSearch.searchSidebar;
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if (sideSearchBar)
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sideSearchBar.reset();
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}
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var change = { op: "remove" };
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FormHistory.update(change);
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},
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canClear: function(aCallback, aArg) {
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var windows = Services.wm.getEnumerator("navigator:browser");
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while (windows.hasMoreElements()) {
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var win = windows.getNext();
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var currentDocument = win.document;
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var findBar = currentDocument.getElementById("FindToolbar");
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if (findBar && findBar.hasTransactions) {
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aCallback("formdata", true, aArg);
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return false;
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}
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var searchBar = currentDocument.getElementById("searchbar");
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if (searchBar && searchBar.textbox && searchBar.textbox.editor) {
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var transactionMgr = searchBar.textbox.editor.transactionManager;
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if (searchBar.value ||
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transactionMgr.numberOfUndoItems ||
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transactionMgr.numberOfRedoItems) {
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aCallback("formdata", true, aArg);
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return false;
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}
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}
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var sideSearchBar = win.BrowserSearch.searchSidebar;
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if (sideSearchBar) {
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var sidebarTm = sideSearchBar.editor.transactionManager;
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if (sideSearchBar.value ||
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sidebarTm.numberOfUndoItems ||
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sidebarTm.numberOfRedoItems) {
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aCallback("formdata", true, aArg);
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return false;
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}
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}
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}
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var count = 0;
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var countDone = {
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handleResult: aResult => count = aResult,
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handleError: aError => Components.utils.reportError(aError),
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handleCompletion(aReason) {
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aCallback("formdata", !aReason && count, aArg);
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}
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};
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FormHistory.count({}, countDone);
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return false;
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}
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},
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downloads: {
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clear: function() {
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var dlMgr = Components.classes["@mozilla.org/download-manager;1"]
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.getService(Components.interfaces.nsIDownloadManager);
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dlMgr.cleanUp();
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},
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get canClear() {
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var dlMgr = Components.classes["@mozilla.org/download-manager;1"]
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.getService(Components.interfaces.nsIDownloadManager);
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return dlMgr.canCleanUp;
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}
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},
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passwords: {
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clear: function() {
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var pwmgr = Components.classes["@mozilla.org/login-manager;1"]
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.getService(Components.interfaces.nsILoginManager);
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pwmgr.removeAllLogins();
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},
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get canClear() {
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var pwmgr = Components.classes["@mozilla.org/login-manager;1"]
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.getService(Components.interfaces.nsILoginManager);
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var count = pwmgr.countLogins("", "", ""); // count all logins
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return (count > 0);
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}
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},
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sessions: {
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clear: function() {
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// clear all auth tokens
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Components.classes["@mozilla.org/security/pk11tokendb;1"]
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.createInstance(Components.interfaces.nsIPK11TokenDB)
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.getInternalKeyToken()
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.checkPassword("");
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// clear plain HTTP auth sessions
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var authMgr = Components.classes["@mozilla.org/network/http-auth-manager;1"]
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.getService(Components.interfaces.nsIHttpAuthManager);
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authMgr.clearAll();
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},
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canClear: true
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}
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}
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};
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