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/** \file
* \brief This file contains wrappers for the current Virtual/Augmented Reality API (WebXR)
*
* \see https://developer.mozilla.org/en-US/docs/Web/API/WebXR_Device_API
* \see https://immersive-web.github.io/webxr/
*
* \author Copyright (C) 2021 Libor Polcak
*
* \license SPDX-License-Identifier: GPL-3.0-or-later
*/
//
// 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 3 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, see <https://www.gnu.org/licenses/>.
//
/** \file
* \ingroup wrappers
*
* navigator.xr allows any page script to learn the VR displays attached
* to the computer and more.
*
* U. Iqbal, S. Englehardt and Z. Shafiq, "Fingerprinting the
* Fingerprinters: Learning to Detect Browser Fingerprinting Behaviors,"
* in 2021 2021 IEEE Symposium on Security and Privacy (SP), San Francisco,
* CA, US, 2021 pp. 283-301 observed
* (https://github.com/uiowa-irl/FP-Inspector/blob/master/Data/potential_fingerprinting_APIs.md)
* that the orginal WebVR API is used in the wild to fingerprint users. As it is
* likely that only a minority of users have a VR display connected and the API
* provides additional information on the HW, it is likely that users with
* a VR display connected are easily fingerprintable.
*
* As all the API calls are accessible through the navigator.xr API, we provide
* a single mitigation. We disable the API completely. This might need to be
* revised once this API is commonly enabled in browsers.
*/
(function() {
var wrappers = [
{
parent_object: "Navigator.prototype",
parent_object_property: "xr",
wrapped_objects: [],
helping_code: "",
post_wrapping_code: [
{
code_type: "delete_properties",
parent_object: "Navigator.prototype",
delete_properties: ["xr"],
}
],
},
]
add_wrappers(wrappers);
})()
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