зеркало из https://github.com/mozilla/gecko-dev.git
840 строки
31 KiB
JavaScript
840 строки
31 KiB
JavaScript
// -*- indent-tabs-mode: nil; js-indent-level: 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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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, "AppConstants",
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"resource://gre/modules/AppConstants.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "PlacesUtils",
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"resource://gre/modules/PlacesUtils.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "FormHistory",
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"resource://gre/modules/FormHistory.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "Downloads",
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"resource://gre/modules/Downloads.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "Promise",
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"resource://gre/modules/Promise.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "Task",
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"resource://gre/modules/Task.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "DownloadsCommon",
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"resource:///modules/DownloadsCommon.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "TelemetryStopwatch",
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"resource://gre/modules/TelemetryStopwatch.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "console",
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"resource://gre/modules/Console.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "Preferences",
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"resource://gre/modules/Preferences.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "setTimeout",
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"resource://gre/modules/Timer.jsm");
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/**
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* A number of iterations after which to yield time back
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* to the system.
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*/
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const YIELD_PERIOD = 10;
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function Sanitizer() {
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}
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Sanitizer.prototype = {
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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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{
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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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promiseCanClearItem: function (aItemName, aArg) {
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return new Promise(resolve => {
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return this.canClearItem(aItemName,
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(_, canClear) => resolve(canClear),
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aArg)
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});
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},
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canClearItem: function (aItemName, aCallback, aArg)
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{
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let 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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prefDomain: "",
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getNameFromPreference: function (aPreferenceName)
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{
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return aPreferenceName.substr(this.prefDomain.length);
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},
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/**
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* Deletes privacy sensitive data in a batch, according to user preferences.
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* Returns a promise which is resolved if no errors occurred. If an error
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* occurs, a message is reported to the console and all other items are still
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* cleared before the promise is finally rejected.
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*
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* If the consumer specifies the (optional) array parameter, only those
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* items get cleared (irrespective of the preference settings)
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*/
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sanitize: Task.async(function*(aItemsToClear = null) {
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let progress = {};
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let promise = this._sanitize(aItemsToClear, progress);
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//
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// Depending on preferences, the sanitizer may perform asynchronous
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// work before it starts cleaning up the Places database (e.g. closing
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// windows). We need to make sure that the connection to that database
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// hasn't been closed by the time we use it.
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//
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let shutdownClient = Cc["@mozilla.org/browser/nav-history-service;1"]
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.getService(Ci.nsPIPlacesDatabase)
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.shutdownClient
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.jsclient;
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shutdownClient.addBlocker("sanitize.js: Sanitize",
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promise,
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{
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fetchState: () => {
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return { progress };
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}
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}
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);
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try {
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yield promise;
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} finally {
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Services.obs.notifyObservers(null, "sanitizer-sanitization-complete", "");
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}
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}),
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_sanitize: Task.async(function*(aItemsToClear, progress = {}) {
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let seenError = false;
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let itemsToClear;
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if (Array.isArray(aItemsToClear)) {
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// Shallow copy the array, as we are going to modify
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// it in place later.
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itemsToClear = [...aItemsToClear];
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} else {
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let branch = Services.prefs.getBranch(this.prefDomain);
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itemsToClear = Object.keys(this.items).filter(itemName => {
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try {
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return branch.getBoolPref(itemName);
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} catch (ex) {
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return false;
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}
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});
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}
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// Store the list of items to clear, in case we are killed before we
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// get a chance to complete.
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Preferences.set(Sanitizer.PREF_SANITIZE_IN_PROGRESS, JSON.stringify(itemsToClear));
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// Store the list of items to clear, for debugging/forensics purposes
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for (let k of itemsToClear) {
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progress[k] = "ready";
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}
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// Ensure open windows get cleared first, if they're in our list, so that they don't stick
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// around in the recently closed windows list, and so we can cancel the whole thing
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// if the user selects to keep a window open from a beforeunload prompt.
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let openWindowsIndex = itemsToClear.indexOf("openWindows");
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if (openWindowsIndex != -1) {
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itemsToClear.splice(openWindowsIndex, 1);
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yield this.items.openWindows.clear();
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progress.openWindows = "cleared";
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}
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// Cache the range of times to clear
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let range = null;
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// If we ignore timespan, clear everything,
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// otherwise, pick a range.
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if (!this.ignoreTimespan) {
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range = this.range || Sanitizer.getClearRange();
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}
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for (let itemName of itemsToClear) {
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let item = this.items[itemName];
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if (!("clear" in item)) {
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progress[itemName] = "`clear` not in item";
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continue;
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}
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item.range = range;
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let canClear = yield this.promiseCanClearItem(itemName);
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if (!canClear) {
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progress[itemName] = "cannot clear item";
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continue;
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}
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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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let refObj = {};
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try {
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TelemetryStopwatch.start("FX_SANITIZE_TOTAL", refObj);
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yield item.clear();
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progress[itemName] = "cleared";
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} catch(er) {
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progress[itemName] = "failed";
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seenError = true;
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console.error("Error sanitizing " + itemName, er);
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} finally {
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TelemetryStopwatch.finish("FX_SANITIZE_TOTAL", refObj);
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}
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}
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// Sanitization is complete.
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Preferences.reset(Sanitizer.PREF_SANITIZE_IN_PROGRESS);
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progress = {};
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if (seenError) {
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throw new Error("Error sanitizing");
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}
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}),
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// Time span only makes sense in certain cases. Consumers who want
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// to only clear some private data can opt in by setting this to false,
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// and can optionally specify a specific range. If timespan is not ignored,
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// and range is not set, sanitize() will use the value of the timespan
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// pref to determine a range
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ignoreTimespan : true,
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range : null,
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items: {
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cache: {
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clear: function ()
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{
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let refObj = {};
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TelemetryStopwatch.start("FX_SANITIZE_CACHE", refObj);
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var cache = Cc["@mozilla.org/netwerk/cache-storage-service;1"].
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getService(Ci.nsICacheStorageService);
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try {
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// Cache doesn't consult timespan, nor does it have the
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// facility for timespan-based eviction. Wipe it.
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cache.clear();
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} catch(er) {}
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var imageCache = Cc["@mozilla.org/image/tools;1"].
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getService(Ci.imgITools).getImgCacheForDocument(null);
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try {
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imageCache.clearCache(false); // true=chrome, false=content
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} catch(er) {}
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TelemetryStopwatch.finish("FX_SANITIZE_CACHE", refObj);
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},
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get canClear()
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{
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return true;
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}
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},
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cookies: {
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clear: Task.async(function* ()
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{
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let yieldCounter = 0;
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let refObj = {};
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TelemetryStopwatch.start("FX_SANITIZE_COOKIES", refObj);
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TelemetryStopwatch.start("FX_SANITIZE_COOKIES_2", refObj);
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var cookieMgr = Components.classes["@mozilla.org/cookiemanager;1"]
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.getService(Ci.nsICookieManager);
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if (this.range) {
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// Iterate through the cookies and delete any created after our cutoff.
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var cookiesEnum = cookieMgr.enumerator;
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while (cookiesEnum.hasMoreElements()) {
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var cookie = cookiesEnum.getNext().QueryInterface(Ci.nsICookie2);
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if (cookie.creationTime > this.range[0]) {
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// This cookie was created after our cutoff, clear it
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cookieMgr.remove(cookie.host, cookie.name, cookie.path, false);
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if (++yieldCounter % YIELD_PERIOD == 0) {
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yield new Promise(resolve => setTimeout(resolve, 0)); // Don't block the main thread too long
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}
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}
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}
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}
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else {
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// Remove everything
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cookieMgr.removeAll();
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yield new Promise(resolve => setTimeout(resolve, 0)); // Don't block the main thread too long
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}
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TelemetryStopwatch.finish("FX_SANITIZE_COOKIES_2", refObj);
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// Clear deviceIds. Done asynchronously (returns before complete).
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let mediaMgr = Components.classes["@mozilla.org/mediaManagerService;1"]
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.getService(Ci.nsIMediaManagerService);
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mediaMgr.sanitizeDeviceIds(this.range && this.range[0]);
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// Clear plugin data.
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TelemetryStopwatch.start("FX_SANITIZE_PLUGINS", refObj);
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yield this.promiseClearPluginCookies();
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TelemetryStopwatch.finish("FX_SANITIZE_PLUGINS", refObj);
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TelemetryStopwatch.finish("FX_SANITIZE_COOKIES", refObj);
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}),
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promiseClearPluginCookies: Task.async(function*() {
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const phInterface = Ci.nsIPluginHost;
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const FLAG_CLEAR_ALL = phInterface.FLAG_CLEAR_ALL;
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let ph = Cc["@mozilla.org/plugin/host;1"].getService(phInterface);
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// Determine age range in seconds. (-1 means clear all.) We don't know
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// that this.range[1] is actually now, so we compute age range based
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// on the lower bound. If this.range results in a negative age, do
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// nothing.
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let age = this.range ? (Date.now() / 1000 - this.range[0] / 1000000) : -1;
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if (!this.range || age >= 0) {
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let tags = ph.getPluginTags();
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for (let tag of tags) {
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try {
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let rv = yield new Promise(resolve =>
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ph.clearSiteData(tag, null, FLAG_CLEAR_ALL, age, resolve)
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);
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// If the plugin doesn't support clearing by age, clear everything.
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if (rv == Components.results.NS_ERROR_PLUGIN_TIME_RANGE_NOT_SUPPORTED) {
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yield new Promise(resolve =>
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ph.clearSiteData(tag, null, FLAG_CLEAR_ALL, -1, resolve)
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);
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}
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} catch (ex) {
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// Ignore errors from plug-ins
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}
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}
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}
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}),
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get canClear()
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{
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return true;
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}
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},
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offlineApps: {
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clear: function ()
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{
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let refObj = {};
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TelemetryStopwatch.start("FX_SANITIZE_OFFLINEAPPS", refObj);
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Components.utils.import("resource:///modules/offlineAppCache.jsm");
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OfflineAppCacheHelper.clear();
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TelemetryStopwatch.finish("FX_SANITIZE_OFFLINEAPPS", refObj);
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},
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get canClear()
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{
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return true;
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}
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},
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history: {
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clear: Task.async(function* ()
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{
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let refObj = {};
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TelemetryStopwatch.start("FX_SANITIZE_HISTORY", refObj);
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try {
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if (this.range) {
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yield PlacesUtils.history.removeVisitsByFilter({
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beginDate: new Date(this.range[0] / 1000),
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endDate: new Date(this.range[1] / 1000)
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});
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} else {
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// Remove everything.
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yield PlacesUtils.history.clear();
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}
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try {
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let clearStartingTime = this.range ? String(this.range[0]) : "";
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Services.obs.notifyObservers(null, "browser:purge-session-history", clearStartingTime);
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} catch (e) { }
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try {
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let predictor = Components.classes["@mozilla.org/network/predictor;1"]
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.getService(Components.interfaces.nsINetworkPredictor);
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predictor.reset();
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} catch (e) {
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console.error("Error while resetting the predictor", e);
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}
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} finally {
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TelemetryStopwatch.finish("FX_SANITIZE_HISTORY", refObj);
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}
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}),
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get canClear()
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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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return true;
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}
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},
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formdata: {
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clear: function ()
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{
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let refObj = {};
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TelemetryStopwatch.start("FX_SANITIZE_FORMDATA", refObj);
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// Clear undo history of all searchBars
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var windowManager = Components.classes['@mozilla.org/appshell/window-mediator;1']
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.getService(Components.interfaces.nsIWindowMediator);
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var windows = windowManager.getEnumerator("navigator:browser");
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while (windows.hasMoreElements()) {
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let currentWindow = windows.getNext();
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let currentDocument = currentWindow.document;
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let searchBar = currentDocument.getElementById("searchbar");
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if (searchBar)
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searchBar.textbox.reset();
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let tabBrowser = currentWindow.gBrowser;
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for (let tab of tabBrowser.tabs) {
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if (tabBrowser.isFindBarInitialized(tab))
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tabBrowser.getFindBar(tab).clear();
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}
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// Clear any saved find value
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tabBrowser._lastFindValue = "";
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}
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let change = { op: "remove" };
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if (this.range) {
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[ change.firstUsedStart, change.firstUsedEnd ] = this.range;
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}
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FormHistory.update(change);
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TelemetryStopwatch.finish("FX_SANITIZE_FORMDATA", refObj);
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},
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canClear : function(aCallback, aArg)
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{
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var windowManager = Components.classes['@mozilla.org/appshell/window-mediator;1']
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.getService(Components.interfaces.nsIWindowMediator);
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var windows = windowManager.getEnumerator("navigator:browser");
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while (windows.hasMoreElements()) {
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let currentWindow = windows.getNext();
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let currentDocument = currentWindow.document;
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let searchBar = currentDocument.getElementById("searchbar");
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if (searchBar) {
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let 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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let tabBrowser = currentWindow.gBrowser;
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let findBarCanClear = Array.some(tabBrowser.tabs, function (aTab) {
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return tabBrowser.isFindBarInitialized(aTab) &&
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tabBrowser.getFindBar(aTab).canClear;
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});
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if (findBarCanClear) {
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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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let count = 0;
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let countDone = {
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handleResult : aResult => count = aResult,
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handleError : aError => Components.utils.reportError(aError),
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handleCompletion :
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function(aReason) { aCallback("formdata", aReason == 0 && count > 0, aArg); }
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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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{
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let refObj = {};
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TelemetryStopwatch.start("FX_SANITIZE_DOWNLOADS", refObj);
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Task.spawn(function () {
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let filterByTime = null;
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if (this.range) {
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// Convert microseconds back to milliseconds for date comparisons.
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let rangeBeginMs = this.range[0] / 1000;
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let rangeEndMs = this.range[1] / 1000;
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filterByTime = download => download.startTime >= rangeBeginMs &&
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download.startTime <= rangeEndMs;
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}
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// Clear all completed/cancelled downloads
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let list = yield Downloads.getList(Downloads.ALL);
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list.removeFinished(filterByTime);
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TelemetryStopwatch.finish("FX_SANITIZE_DOWNLOADS", refObj);
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}.bind(this)).then(null, error => {
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TelemetryStopwatch.finish("FX_SANITIZE_DOWNLOADS", refObj);
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Components.utils.reportError(error);
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});
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},
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canClear : function(aCallback, aArg)
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{
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aCallback("downloads", true, aArg);
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return false;
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}
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},
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sessions: {
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clear: function ()
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{
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let refObj = {};
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TelemetryStopwatch.start("FX_SANITIZE_SESSIONS", refObj);
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// clear all auth tokens
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var sdr = Components.classes["@mozilla.org/security/sdr;1"]
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.getService(Components.interfaces.nsISecretDecoderRing);
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sdr.logoutAndTeardown();
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// clear FTP and plain HTTP auth sessions
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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, "net:clear-active-logins", null);
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TelemetryStopwatch.finish("FX_SANITIZE_SESSIONS", refObj);
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},
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get canClear()
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{
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return true;
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}
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},
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siteSettings: {
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clear: function ()
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{
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let refObj = {};
|
|
TelemetryStopwatch.start("FX_SANITIZE_SITESETTINGS", refObj);
|
|
|
|
// Clear site-specific permissions like "Allow this site to open popups"
|
|
// we ignore the "end" range and hope it is now() - none of the
|
|
// interfaces used here support a true range anyway.
|
|
let startDateMS = this.range == null ? null : this.range[0] / 1000;
|
|
var pm = Components.classes["@mozilla.org/permissionmanager;1"]
|
|
.getService(Components.interfaces.nsIPermissionManager);
|
|
if (startDateMS == null) {
|
|
pm.removeAll();
|
|
} else {
|
|
pm.removeAllSince(startDateMS);
|
|
}
|
|
|
|
// Clear site-specific settings like page-zoom level
|
|
var cps = Components.classes["@mozilla.org/content-pref/service;1"]
|
|
.getService(Components.interfaces.nsIContentPrefService2);
|
|
if (startDateMS == null) {
|
|
cps.removeAllDomains(null);
|
|
} else {
|
|
cps.removeAllDomainsSince(startDateMS, null);
|
|
}
|
|
|
|
// Clear "Never remember passwords for this site", which is not handled by
|
|
// the permission manager
|
|
// (Note the login manager doesn't support date ranges yet, and bug
|
|
// 1058438 is calling for loginSaving stuff to end up in the
|
|
// permission manager)
|
|
var pwmgr = Components.classes["@mozilla.org/login-manager;1"]
|
|
.getService(Components.interfaces.nsILoginManager);
|
|
var hosts = pwmgr.getAllDisabledHosts();
|
|
for (var host of hosts) {
|
|
pwmgr.setLoginSavingEnabled(host, true);
|
|
}
|
|
|
|
// Clear site security settings - no support for ranges in this
|
|
// interface either, so we clearAll().
|
|
var sss = Cc["@mozilla.org/ssservice;1"]
|
|
.getService(Ci.nsISiteSecurityService);
|
|
sss.clearAll();
|
|
|
|
// Clear all push notification subscriptions
|
|
try {
|
|
var push = Cc["@mozilla.org/push/NotificationService;1"]
|
|
.getService(Ci.nsIPushNotificationService);
|
|
push.clearAll();
|
|
} catch (e) {
|
|
dump("Web Push may not be available.\n");
|
|
}
|
|
|
|
TelemetryStopwatch.finish("FX_SANITIZE_SITESETTINGS", refObj);
|
|
},
|
|
|
|
get canClear()
|
|
{
|
|
return true;
|
|
}
|
|
},
|
|
openWindows: {
|
|
privateStateForNewWindow: "non-private",
|
|
_canCloseWindow: function(aWindow) {
|
|
if (aWindow.CanCloseWindow()) {
|
|
// We already showed PermitUnload for the window, so let's
|
|
// make sure we don't do it again when we actually close the
|
|
// window.
|
|
aWindow.skipNextCanClose = true;
|
|
return true;
|
|
}
|
|
},
|
|
_resetAllWindowClosures: function(aWindowList) {
|
|
for (let win of aWindowList) {
|
|
win.skipNextCanClose = false;
|
|
}
|
|
},
|
|
clear: Task.async(function*() {
|
|
// NB: this closes all *browser* windows, not other windows like the library, about window,
|
|
// browser console, etc.
|
|
|
|
// Keep track of the time in case we get stuck in la-la-land because of onbeforeunload
|
|
// dialogs
|
|
let existingWindow = Services.appShell.hiddenDOMWindow;
|
|
let startDate = existingWindow.performance.now();
|
|
|
|
// First check if all these windows are OK with being closed:
|
|
let windowEnumerator = Services.wm.getEnumerator("navigator:browser");
|
|
let windowList = [];
|
|
while (windowEnumerator.hasMoreElements()) {
|
|
let someWin = windowEnumerator.getNext();
|
|
windowList.push(someWin);
|
|
// If someone says "no" to a beforeunload prompt, we abort here:
|
|
if (!this._canCloseWindow(someWin)) {
|
|
this._resetAllWindowClosures(windowList);
|
|
throw new Error("Sanitize could not close windows: cancelled by user");
|
|
}
|
|
|
|
// ...however, beforeunload prompts spin the event loop, and so the code here won't get
|
|
// hit until the prompt has been dismissed. If more than 1 minute has elapsed since we
|
|
// started prompting, stop, because the user might not even remember initiating the
|
|
// 'forget', and the timespans will be all wrong by now anyway:
|
|
if (existingWindow.performance.now() > (startDate + 60 * 1000)) {
|
|
this._resetAllWindowClosures(windowList);
|
|
throw new Error("Sanitize could not close windows: timeout");
|
|
}
|
|
}
|
|
|
|
// If/once we get here, we should actually be able to close all windows.
|
|
|
|
let refObj = {};
|
|
TelemetryStopwatch.start("FX_SANITIZE_OPENWINDOWS", refObj);
|
|
|
|
// First create a new window. We do this first so that on non-mac, we don't
|
|
// accidentally close the app by closing all the windows.
|
|
let handler = Cc["@mozilla.org/browser/clh;1"].getService(Ci.nsIBrowserHandler);
|
|
let defaultArgs = handler.defaultArgs;
|
|
let features = "chrome,all,dialog=no," + this.privateStateForNewWindow;
|
|
let newWindow = existingWindow.openDialog("chrome://browser/content/", "_blank",
|
|
features, defaultArgs);
|
|
|
|
let onFullScreen = null;
|
|
if (AppConstants.platform == "macosx") {
|
|
onFullScreen = function(e) {
|
|
newWindow.removeEventListener("fullscreen", onFullScreen);
|
|
let docEl = newWindow.document.documentElement;
|
|
let sizemode = docEl.getAttribute("sizemode");
|
|
if (!newWindow.fullScreen && sizemode == "fullscreen") {
|
|
docEl.setAttribute("sizemode", "normal");
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
return false;
|
|
}
|
|
}
|
|
newWindow.addEventListener("fullscreen", onFullScreen);
|
|
}
|
|
|
|
let promiseReady = new Promise(resolve => {
|
|
// Window creation and destruction is asynchronous. We need to wait
|
|
// until all existing windows are fully closed, and the new window is
|
|
// fully open, before continuing. Otherwise the rest of the sanitizer
|
|
// could run too early (and miss new cookies being set when a page
|
|
// closes) and/or run too late (and not have a fully-formed window yet
|
|
// in existence). See bug 1088137.
|
|
let newWindowOpened = false;
|
|
let onWindowOpened = function(subject, topic, data) {
|
|
if (subject != newWindow)
|
|
return;
|
|
|
|
Services.obs.removeObserver(onWindowOpened, "browser-delayed-startup-finished");
|
|
if (AppConstants.platform == "macosx") {
|
|
newWindow.removeEventListener("fullscreen", onFullScreen);
|
|
}
|
|
newWindowOpened = true;
|
|
// If we're the last thing to happen, invoke callback.
|
|
if (numWindowsClosing == 0) {
|
|
TelemetryStopwatch.finish("FX_SANITIZE_OPENWINDOWS", refObj);
|
|
resolve();
|
|
}
|
|
}
|
|
|
|
let numWindowsClosing = windowList.length;
|
|
let onWindowClosed = function() {
|
|
numWindowsClosing--;
|
|
if (numWindowsClosing == 0) {
|
|
Services.obs.removeObserver(onWindowClosed, "xul-window-destroyed");
|
|
// If we're the last thing to happen, invoke callback.
|
|
if (newWindowOpened) {
|
|
TelemetryStopwatch.finish("FX_SANITIZE_OPENWINDOWS", refObj);
|
|
resolve();
|
|
}
|
|
}
|
|
}
|
|
Services.obs.addObserver(onWindowOpened, "browser-delayed-startup-finished", false);
|
|
Services.obs.addObserver(onWindowClosed, "xul-window-destroyed", false);
|
|
});
|
|
|
|
// Start the process of closing windows
|
|
while (windowList.length) {
|
|
windowList.pop().close();
|
|
}
|
|
newWindow.focus();
|
|
yield promiseReady;
|
|
}),
|
|
|
|
get canClear()
|
|
{
|
|
return true;
|
|
}
|
|
},
|
|
}
|
|
};
|
|
|
|
|
|
|
|
// "Static" members
|
|
Sanitizer.PREF_DOMAIN = "privacy.sanitize.";
|
|
Sanitizer.PREF_SANITIZE_ON_SHUTDOWN = "privacy.sanitize.sanitizeOnShutdown";
|
|
Sanitizer.PREF_SANITIZE_IN_PROGRESS = "privacy.sanitize.sanitizeInProgress";
|
|
Sanitizer.PREF_SANITIZE_DID_SHUTDOWN = "privacy.sanitize.didShutdownSanitize";
|
|
|
|
// Time span constants corresponding to values of the privacy.sanitize.timeSpan
|
|
// pref. Used to determine how much history to clear, for various items
|
|
Sanitizer.TIMESPAN_EVERYTHING = 0;
|
|
Sanitizer.TIMESPAN_HOUR = 1;
|
|
Sanitizer.TIMESPAN_2HOURS = 2;
|
|
Sanitizer.TIMESPAN_4HOURS = 3;
|
|
Sanitizer.TIMESPAN_TODAY = 4;
|
|
Sanitizer.TIMESPAN_5MIN = 5;
|
|
Sanitizer.TIMESPAN_24HOURS = 6;
|
|
|
|
// Return a 2 element array representing the start and end times,
|
|
// in the uSec-since-epoch format that PRTime likes. If we should
|
|
// clear everything, return null. Use ts if it is defined; otherwise
|
|
// use the timeSpan pref.
|
|
Sanitizer.getClearRange = function (ts) {
|
|
if (ts === undefined)
|
|
ts = Sanitizer.prefs.getIntPref("timeSpan");
|
|
if (ts === Sanitizer.TIMESPAN_EVERYTHING)
|
|
return null;
|
|
|
|
// PRTime is microseconds while JS time is milliseconds
|
|
var endDate = Date.now() * 1000;
|
|
switch (ts) {
|
|
case Sanitizer.TIMESPAN_5MIN :
|
|
var startDate = endDate - 300000000; // 5*60*1000000
|
|
break;
|
|
case Sanitizer.TIMESPAN_HOUR :
|
|
startDate = endDate - 3600000000; // 1*60*60*1000000
|
|
break;
|
|
case Sanitizer.TIMESPAN_2HOURS :
|
|
startDate = endDate - 7200000000; // 2*60*60*1000000
|
|
break;
|
|
case Sanitizer.TIMESPAN_4HOURS :
|
|
startDate = endDate - 14400000000; // 4*60*60*1000000
|
|
break;
|
|
case Sanitizer.TIMESPAN_TODAY :
|
|
var d = new Date(); // Start with today
|
|
d.setHours(0); // zero us back to midnight...
|
|
d.setMinutes(0);
|
|
d.setSeconds(0);
|
|
startDate = d.valueOf() * 1000; // convert to epoch usec
|
|
break;
|
|
case Sanitizer.TIMESPAN_24HOURS :
|
|
startDate = endDate - 86400000000; // 24*60*60*1000000
|
|
break;
|
|
default:
|
|
throw "Invalid time span for clear private data: " + ts;
|
|
}
|
|
return [startDate, endDate];
|
|
};
|
|
|
|
Sanitizer._prefs = null;
|
|
Sanitizer.__defineGetter__("prefs", function()
|
|
{
|
|
return Sanitizer._prefs ? Sanitizer._prefs
|
|
: Sanitizer._prefs = Components.classes["@mozilla.org/preferences-service;1"]
|
|
.getService(Components.interfaces.nsIPrefService)
|
|
.getBranch(Sanitizer.PREF_DOMAIN);
|
|
});
|
|
|
|
// Shows sanitization UI
|
|
Sanitizer.showUI = function(aParentWindow)
|
|
{
|
|
var ww = Components.classes["@mozilla.org/embedcomp/window-watcher;1"]
|
|
.getService(Components.interfaces.nsIWindowWatcher);
|
|
let win = AppConstants.platform == "macosx" ?
|
|
null: // make this an app-modal window on Mac
|
|
aParentWindow;
|
|
ww.openWindow(win,
|
|
"chrome://browser/content/sanitize.xul",
|
|
"Sanitize",
|
|
"chrome,titlebar,dialog,centerscreen,modal",
|
|
null);
|
|
};
|
|
|
|
/**
|
|
* Deletes privacy sensitive data in a batch, optionally showing the
|
|
* sanitize UI, according to user preferences
|
|
*/
|
|
Sanitizer.sanitize = function(aParentWindow)
|
|
{
|
|
Sanitizer.showUI(aParentWindow);
|
|
};
|
|
|
|
Sanitizer.onStartup = Task.async(function*() {
|
|
// Make sure that we are triggered during shutdown, at the right time.
|
|
let shutdownClient = Cc["@mozilla.org/browser/nav-history-service;1"]
|
|
.getService(Ci.nsPIPlacesDatabase)
|
|
.shutdownClient
|
|
.jsclient;
|
|
|
|
shutdownClient.addBlocker("sanitize.js: Sanitize on shutdown",
|
|
() => Sanitizer.onShutdown());
|
|
|
|
// One time migration to remove support for the clear saved passwords on exit feature.
|
|
if (!Services.prefs.getBoolPref("privacy.sanitize.migrateClearSavedPwdsOnExit")) {
|
|
let deprecatedPref = "privacy.clearOnShutdown.passwords";
|
|
let doUpdate = Services.prefs.prefHasUserValue(deprecatedPref) &&
|
|
Services.prefs.getBoolPref(deprecatedPref);
|
|
if (doUpdate) {
|
|
Services.logins.removeAllLogins();
|
|
Services.prefs.setBoolPref("signon.rememberSignons", false);
|
|
}
|
|
Services.prefs.clearUserPref(deprecatedPref);
|
|
Services.prefs.setBoolPref("privacy.sanitize.migrateClearSavedPwdsOnExit", true);
|
|
}
|
|
|
|
// Handle incomplete sanitizations
|
|
if (Preferences.has(Sanitizer.PREF_SANITIZE_IN_PROGRESS)) {
|
|
// Firefox crashed during sanitization.
|
|
let s = new Sanitizer();
|
|
let json = Preferences.get(Sanitizer.PREF_SANITIZE_IN_PROGRESS);
|
|
let itemsToClear = JSON.parse(json);
|
|
yield s.sanitize(itemsToClear);
|
|
}
|
|
if (Preferences.has(Sanitizer.PREF_SANITIZE_DID_SHUTDOWN)) {
|
|
// Firefox crashed before having a chance to sanitize during shutdown.
|
|
// (note that if Firefox crashed during shutdown sanitization, we
|
|
// will hit both `if` so we will run a second double-sanitization).
|
|
yield Sanitizer.onShutdown();
|
|
}
|
|
});
|
|
|
|
Sanitizer.onShutdown = Task.async(function*() {
|
|
if (!Preferences.get(Sanitizer.PREF_SANITIZE_ON_SHUTDOWN)) {
|
|
return;
|
|
}
|
|
// Need to sanitize upon shutdown
|
|
let s = new Sanitizer();
|
|
s.prefDomain = "privacy.clearOnShutdown.";
|
|
yield s.sanitize();
|
|
Preferences.set(Sanitizer.PREF_SANITIZE_DID_SHUTDOWN, true);
|
|
});
|