From e4283f6d48b98e764b988b43bbc86b9d52e6ec94 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 19:54:43 +0200 Subject: Adding upstream version 43.9. Signed-off-by: Daniel Baumann --- js/misc/parentalControlsManager.js | 153 +++++++++++++++++++++++++++++++++++++ 1 file changed, 153 insertions(+) create mode 100644 js/misc/parentalControlsManager.js (limited to 'js/misc/parentalControlsManager.js') diff --git a/js/misc/parentalControlsManager.js b/js/misc/parentalControlsManager.js new file mode 100644 index 0000000..48f0ca2 --- /dev/null +++ b/js/misc/parentalControlsManager.js @@ -0,0 +1,153 @@ +// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*- +// +// Copyright (C) 2018, 2019, 2020 Endless Mobile, Inc. +// +// This is a GNOME Shell component to wrap the interactions over +// D-Bus with the malcontent library. +// +// Licensed under the GNU General Public License Version 2 +// +// This program is free software; you can redistribute it and/or +// modify it under the terms of the GNU General Public License +// as published by the Free Software Foundation; either version 2 +// of the License, or (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program; if not, write to the Free Software +// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + +/* exported getDefault */ + +const { Gio, GObject, Shell } = imports.gi; + +// We require libmalcontent ≥ 0.6.0 +const HAVE_MALCONTENT = imports.package.checkSymbol( + 'Malcontent', '0', 'ManagerGetValueFlags'); + +var Malcontent = null; +if (HAVE_MALCONTENT) { + Malcontent = imports.gi.Malcontent; + Gio._promisify(Malcontent.Manager.prototype, 'get_app_filter_async'); +} + +let _singleton = null; + +function getDefault() { + if (_singleton === null) + _singleton = new ParentalControlsManager(); + + return _singleton; +} + +// A manager class which provides cached access to the constructing user’s +// parental controls settings. It’s possible for the user’s parental controls +// to change at runtime if the Parental Controls application is used by an +// administrator from within the user’s session. +var ParentalControlsManager = GObject.registerClass({ + Signals: { + 'app-filter-changed': {}, + }, +}, class ParentalControlsManager extends GObject.Object { + _init() { + super._init(); + + this._initialized = false; + this._disabled = false; + this._appFilter = null; + + this._initializeManager(); + } + + async _initializeManager() { + if (!HAVE_MALCONTENT) { + console.debug('Skipping parental controls support, malcontent not found'); + this._initialized = true; + this.emit('app-filter-changed'); + return; + } + + try { + const connection = await Gio.DBus.get(Gio.BusType.SYSTEM, null); + this._manager = new Malcontent.Manager({ connection }); + this._appFilter = await this._getAppFilter(); + } catch (e) { + logError(e, 'Failed to get parental controls settings'); + return; + } + + this._manager.connect('app-filter-changed', this._onAppFilterChanged.bind(this)); + + // Signal initialisation is complete. + this._initialized = true; + this.emit('app-filter-changed'); + } + + async _getAppFilter() { + let appFilter = null; + + try { + appFilter = await this._manager.get_app_filter_async( + Shell.util_get_uid(), + Malcontent.ManagerGetValueFlags.NONE, + null); + } catch (e) { + if (!e.matches(Malcontent.ManagerError, Malcontent.ManagerError.DISABLED)) + throw e; + + console.debug('Parental controls globally disabled'); + this._disabled = true; + } + + return appFilter; + } + + async _onAppFilterChanged(manager, uid) { + // Emit 'changed' signal only if app-filter is changed for currently logged-in user. + let currentUid = Shell.util_get_uid(); + if (currentUid !== uid) + return; + + try { + this._appFilter = await this._getAppFilter(); + this.emit('app-filter-changed'); + } catch (e) { + // Log an error and keep the old app filter. + logError(e, `Failed to get new MctAppFilter for uid ${Shell.util_get_uid()} on app-filter-changed`); + } + } + + get initialized() { + return this._initialized; + } + + // Calculate whether the given app (a Gio.DesktopAppInfo) should be shown + // on the desktop, in search results, etc. The app should be shown if: + // - The .desktop file doesn’t say it should be hidden. + // - The executable from the .desktop file’s Exec line isn’t denied in + // the user’s parental controls. + // - None of the flatpak app IDs from the X-Flatpak and the + // X-Flatpak-RenamedFrom lines are denied in the user’s parental + // controls. + shouldShowApp(appInfo) { + // Quick decision? + if (!appInfo.should_show()) + return false; + + // Are parental controls enabled (at configure time or runtime)? + if (!HAVE_MALCONTENT || this._disabled) + return true; + + // Have we finished initialising yet? + if (!this.initialized) { + console.debug(`Hiding app because parental controls not yet initialised: ${appInfo.get_id()}`); + return false; + } + + return this._appFilter.is_appinfo_allowed(appInfo); + } +}); -- cgit v1.2.3