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Diffstat (limited to 'data/extensions/jsr@javascriptrestrictor/wrappingS-HTML5.js')
-rw-r--r-- | data/extensions/jsr@javascriptrestrictor/wrappingS-HTML5.js | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/data/extensions/jsr@javascriptrestrictor/wrappingS-HTML5.js b/data/extensions/jsr@javascriptrestrictor/wrappingS-HTML5.js deleted file mode 100644 index c1bebfd..0000000 --- a/data/extensions/jsr@javascriptrestrictor/wrappingS-HTML5.js +++ /dev/null @@ -1,76 +0,0 @@ -/** \file - * \brief This file contains wrappers for HTML Audio and Video elements - * - * \see https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/canPlayType - * - * \author Copyright (C) 2022 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 - * - * Supported codecs (multimedia media types) can be misued for fingerprinting, - * see for example the [FPMon paper](https://fpmon.github.io/fingerprinting-monitor/files/FPMON.pdf). - * - * JShelter provides two modes of protection: - * - * 1. Strict approach returns all media types as not supported. - * 2. Modifies the output of probably/maybe supported codecs. - */ - -/* - * Create private namespace - */ -(function() { - var wrappers = [ - { - parent_object: "HTMLMediaElement.prototype", - parent_object_property: "canPlayType", - wrapped_objects: [{ - original_name: "HTMLMediaElement.prototype.canPlayType", - wrapped_name: "origF", - }], - helping_code: `var approach = args[0];`, - wrapping_function_args: "media, ...args", - wrapping_function_body: ` - if ((approach == 2) || (approach == 1)) { - return ""; - } - else { - var normalized = media.replace(/\s|\\n|\\t|\\r/g, ''); - var origVal = origF.call(this, media); - if (origVal === "") { - return origVal; - } - else { - var medcap_prng = alea(domainHash, "MediaCapabilities.prototype.encodingInfo", normalized); - var rnd = medcap_prng.get_bits(1); - if (rnd == 0) { - return "probably"; - } - else { - return "maybe"; - } - } - } - `, - }, - ] - add_wrappers(wrappers); -})() |