The Tor Browser / file comparison
comparison: browser/components/sessionstore/src/PrivacyLevel.jsm
browser/components/sessionstore/src/PrivacyLevel.jsm
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| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this file, | |
| 3 * You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 "use strict"; | |
| 6 | |
| 7 this.EXPORTED_SYMBOLS = ["PrivacyLevel"]; | |
| 8 | |
| 9 const Cu = Components.utils; | |
| 10 | |
| 11 Cu.import("resource://gre/modules/Services.jsm"); | |
| 12 | |
| 13 const PREF_NORMAL = "browser.sessionstore.privacy_level"; | |
| 14 const PREF_DEFERRED = "browser.sessionstore.privacy_level_deferred"; | |
| 15 | |
| 16 // The following constants represent the different possible privacy levels that | |
| 17 // can be set by the user and that we need to consider when collecting text | |
| 18 // data, and cookies. | |
| 19 // | |
| 20 // Collect data from all sites (http and https). | |
| 21 const PRIVACY_NONE = 0; | |
| 22 // Collect data from unencrypted sites (http), only. | |
| 23 const PRIVACY_ENCRYPTED = 1; | |
| 24 // Collect no data. | |
| 25 const PRIVACY_FULL = 2; | |
| 26 | |
| 27 /** | |
| 28 * Returns whether we will resume the session automatically on next startup. | |
| 29 */ | |
| 30 function willResumeAutomatically() { | |
| 31 return Services.prefs.getIntPref("browser.startup.page") == 3 || | |
| 32 Services.prefs.getBoolPref("browser.sessionstore.resume_session_once"); | |
| 33 } | |
| 34 | |
| 35 /** | |
| 36 * Determines the current privacy level as set by the user. | |
| 37 * | |
| 38 * @param isPinned | |
| 39 * Whether to return the privacy level for pinned tabs. | |
| 40 * @return {int} The privacy level as read from the user's preferences. | |
| 41 */ | |
| 42 function getCurrentLevel(isPinned) { | |
| 43 let pref = PREF_NORMAL; | |
| 44 | |
| 45 // If we're in the process of quitting and we're not autoresuming the session | |
| 46 // then we will use the deferred privacy level for non-pinned tabs. | |
| 47 if (!isPinned && Services.startup.shuttingDown && !willResumeAutomatically()) { | |
| 48 pref = PREF_DEFERRED; | |
| 49 } | |
| 50 | |
| 51 return Services.prefs.getIntPref(pref); | |
| 52 } | |
| 53 | |
| 54 /** | |
| 55 * The external API as exposed by this module. | |
| 56 */ | |
| 57 let PrivacyLevel = Object.freeze({ | |
| 58 /** | |
| 59 * Checks whether we're allowed to save data for a specific site. | |
| 60 * | |
| 61 * @param {isHttps: boolean, isPinned: boolean} | |
| 62 * An object that must have two properties: 'isHttps' and 'isPinned'. | |
| 63 * 'isHttps' tells whether the site us secure communication (HTTPS). | |
| 64 * 'isPinned' tells whether the site is loaded in a pinned tab. | |
| 65 * @return {bool} Whether we can save data for the specified site. | |
| 66 */ | |
| 67 canSave: function ({isHttps, isPinned}) { | |
| 68 let level = getCurrentLevel(isPinned); | |
| 69 | |
| 70 // Never save any data when full privacy is requested. | |
| 71 if (level == PRIVACY_FULL) { | |
| 72 return false; | |
| 73 } | |
| 74 | |
| 75 // Don't save data for encrypted sites when requested. | |
| 76 if (isHttps && level == PRIVACY_ENCRYPTED) { | |
| 77 return false; | |
| 78 } | |
| 79 | |
| 80 return true; | |
| 81 } | |
| 82 }); |
