72 lines
2 KiB
JavaScript
72 lines
2 KiB
JavaScript
/** \file
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* \brief Wrappers for Battery Status API
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*
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* \see https://www.w3.org/TR/battery-status/
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*
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* \author Copyright (C) 2021 Libor Polčák
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*
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* \license SPDX-License-Identifier: GPL-3.0-or-later
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*/
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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//
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/** \file
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* \ingroup wrappers
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*
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* The `navigator.getBattery()` reports the state of the battery and can be
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* misused to fingerprint users for a short term. The API was removed from
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* Firefox, but is still supported in browsers derived from Chromium.
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* The wrapper mimics Firefox behaviour.
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*
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* \see <https://lukaszolejnik.com/battery>
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*
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* \bug Because we mimic Firefox behaviour, a Chromium derived browser
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* becomes more easily fingerprintable. This can be fixed by properly
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* wrapping `BatteryManager.prototype` getters and setters.
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*/
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/*
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* Create private namespace
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*/
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(function() {
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var wrappers = [
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{
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parent_object: "Navigator.prototype",
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parent_object_property: "getBattery",
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wrapped_objects: [],
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post_wrapping_code: [
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{
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code_type: "delete_properties",
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parent_object: "Navigator.prototype",
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delete_properties: ["getBattery"],
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}
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],
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},
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{
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parent_object: "window",
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parent_object_property: "BatteryManager",
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wrapped_objects: [],
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post_wrapping_code: [
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{
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code_type: "delete_properties",
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parent_object: "window",
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delete_properties: ["BatteryManager"],
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}
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],
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},
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];
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add_wrappers(wrappers);
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})();
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