tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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test_mediacapabilities_resistfingerprinting.html (2167B)

      1 <!DOCTYPE HTML>
      2 <html>
      3 <head>
      4  <meta charset="utf-8">
      5  <title>Test for Bug 1369309</title>
      6  <script src="/tests/SimpleTest/SimpleTest.js"></script>
      7  <script type="application/javascript" src="manifest.js"></script>
      8  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
      9 </head>
     10 <body>
     11 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1461454">Mozilla Bug 1461454</a>
     12 <a target="_blank" href="https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/13543">Tor Issue 13543</a>
     13 
     14 <script type="application/javascript">
     15 async function testWhetherSpoofed(resistFingerprinting) {
     16 
     17    var unsupportedVideoConfiguration = {
     18        contentType: 'video/bogus',
     19        width: 800,
     20        height: 600,
     21        bitrate: 3000,
     22        framerate: 24,
     23    };
     24    var supportedVideoConfiguration = {
     25        contentType: 'video/webm; codecs="vp09.00.10.08"',
     26        width: 800,
     27        height: 600,
     28        bitrate: 3000,
     29        framerate: 24,
     30    };
     31 
     32    await SpecialPowers.pushPrefEnv({
     33        "set": [
     34            ["privacy.resistFingerprinting", resistFingerprinting]
     35        ],
     36    });
     37 
     38    var result;
     39 
     40    result = await navigator.mediaCapabilities.decodingInfo({
     41        type: 'file',
     42        video: unsupportedVideoConfiguration
     43    });
     44    is(result.supported, false, "video/bogus should be unsupported.");
     45    is(result.smooth, false, "smooth is false when unsupported.");
     46    is(result.powerEfficient, false, "powerEfficient is false when unsupported.");
     47 
     48    result = await navigator.mediaCapabilities.decodingInfo({
     49        type: 'file',
     50        video: supportedVideoConfiguration
     51    });
     52    is(result.supported, true, "'video/webm; codecs=\"vp09.00.10.08\"' should be supported.");
     53    if (resistFingerprinting) {
     54        is(result.smooth, true, "smooth should be spoofed to true in RFP mode.");
     55        is(result.powerEfficient, false, "powerEfficient should be spoofed to false in RFP mode.");
     56    }
     57 }
     58 
     59 async function start() {
     60    await testWhetherSpoofed(true);
     61    await testWhetherSpoofed(false);
     62    SimpleTest.finish();
     63 }
     64 
     65 SimpleTest.waitForExplicitFinish();
     66 start();
     67 </script>
     68 </body>
     69 </html>