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79 lines
2.5 KiB
JavaScript
79 lines
2.5 KiB
JavaScript
/* 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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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this.EXPORTED_SYMBOLS = ["PrivacyLevel"];
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const Cu = Components.utils;
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Cu.import("resource://gre/modules/Services.jsm");
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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XPCOMUtils.defineLazyServiceGetter(this, "gSessionStartup",
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"@mozilla.org/browser/sessionstartup;1", "nsISessionStartup");
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const PREF_NORMAL = "browser.sessionstore.privacy_level";
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const PREF_DEFERRED = "browser.sessionstore.privacy_level_deferred";
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// The following constants represent the different possible privacy levels that
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// can be set by the user and that we need to consider when collecting text
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// data, and cookies.
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//
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// Collect data from all sites (http and https).
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const PRIVACY_NONE = 0;
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// Collect data from unencrypted sites (http), only.
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const PRIVACY_ENCRYPTED = 1;
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// Collect no data.
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const PRIVACY_FULL = 2;
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/**
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* Determines the current privacy level as set by the user.
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*
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* @param isPinned
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* Whether to return the privacy level for pinned tabs.
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* @return {int} The privacy level as read from the user's preferences.
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*/
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function getCurrentLevel(isPinned) {
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let pref = PREF_NORMAL;
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// If we're in the process of quitting and we're not autoresuming the session
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// then we will use the deferred privacy level for non-pinned tabs.
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if (!isPinned && Services.startup.shuttingDown && !gSessionStartup.isAutomaticRestoreEnabled()) {
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pref = PREF_DEFERRED;
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}
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return Services.prefs.getIntPref(pref);
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}
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/**
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* The external API as exposed by this module.
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*/
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var PrivacyLevel = Object.freeze({
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/**
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* Checks whether we're allowed to save data for a specific site.
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*
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* @param {isHttps: boolean, isPinned: boolean}
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* An object that must have two properties: 'isHttps' and 'isPinned'.
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* 'isHttps' tells whether the site us secure communication (HTTPS).
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* 'isPinned' tells whether the site is loaded in a pinned tab.
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* @return {bool} Whether we can save data for the specified site.
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*/
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canSave: function ({isHttps, isPinned}) {
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let level = getCurrentLevel(isPinned);
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// Never save any data when full privacy is requested.
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if (level == PRIVACY_FULL) {
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return false;
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}
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// Don't save data for encrypted sites when requested.
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if (isHttps && level == PRIVACY_ENCRYPTED) {
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return false;
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}
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return true;
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}
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});
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