tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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createImageBitmap-origin.sub.html (1823B)


      1 <!DOCTYPE html>
      2 <meta charset=utf-8>
      3 <title>createImageBitmap: origin-clean flag</title>
      4 <script src="/resources/testharness.js"></script>
      5 <script src="/resources/testharnessreport.js"></script>
      6 <script src="/common/get-host-info.sub.js"></script>
      7 <script src="/common/media.js"></script>
      8 <script src="/html/canvas/resources/canvas-tests.js"></script>
      9 <div id=log></div>
     10 <script>
     11 
     12 function assert_origin_unclean_getImageData(bitmap) {
     13  const context = document.createElement("canvas").getContext("2d");
     14  context.drawImage(bitmap, 0, 0);
     15  assert_throws_dom("SecurityError", () => {
     16    context.getImageData(0, 0, 1, 1);
     17  });
     18 }
     19 
     20 function assert_origin_unclean_drawImage(bitmap) {
     21  const canvas = document.createElement('canvas');
     22  const ctx = canvas.getContext('2d');
     23  ctx.drawImage(bitmap, 0, 0);
     24  assert_throws_dom('SecurityError', () => canvas.toDataURL());
     25 }
     26 
     27 function assert_origin_unclean_transferFromImageBitmap(bitmap) {
     28  var canvas = document.createElement('canvas');
     29  var ctx = canvas.getContext('bitmaprenderer');
     30  ctx.transferFromImageBitmap(bitmap);
     31  assert_throws_dom('SecurityError', () => canvas.toDataURL());
     32 }
     33 
     34 forEachCanvasSource(get_host_info().HTTP_REMOTE_ORIGIN,
     35                    get_host_info().HTTP_ORIGIN,
     36                    (name, factory) => {
     37  promise_test(function() {
     38    return factory().then(createImageBitmap).then(assert_origin_unclean_getImageData);
     39  }, `${name}: origin unclear getImageData`);
     40  promise_test(function() {
     41    return factory().then(createImageBitmap).then(assert_origin_unclean_drawImage);
     42  }, `${name}: origin unclear 2dContext.drawImage`);
     43  promise_test(function() {
     44    return factory().then(createImageBitmap).then(assert_origin_unclean_transferFromImageBitmap);
     45  }, `${name}: origin unclear bitmaprenderer.transferFromImageBitmap`);
     46 });
     47 </script>