mozilla-central: dom/media/webrtc/tests/mochitests/identity/test_fingerprints.html@3862f7d3e5c36c9d28f4b44ec4f530d43e7bcc8a

<html>
<head>
<meta charset="utf-8" />
<script type="application/javascript">var scriptRelativePath = "../";</script>
<script type="application/javascript" src="../pc.js"></script>
</head>
<body>
<script class="testbody" type="application/javascript">
createHTML({ title: "Test multiple identity fingerprints",  bug: "1005152" });

// here we call the identity provider directly
async function getIdentityAssertion(fingerprint) {
  const { IdpSandbox } = SpecialPowers.ChromeUtils.importESModule(
    'resource://gre/modules/media/IdpSandbox.sys.mjs'
  );
  const sandbox = new IdpSandbox('example.com', 'idp.js', window);
  const idp = SpecialPowers.wrap(await sandbox.start());
  const assertion = SpecialPowers.wrap(await
      idp.generateAssertion(JSON.stringify({ fingerprint }),
                            'https://example.com',
                            {}));
  const assertionString = btoa(JSON.stringify(assertion));
  sandbox.stop();
  return assertionString;
}

// This takes a real fingerprint and makes some extra bad ones.
function makeFingerprints(algorithm, digest) {
  const fingerprints = [];
  fingerprints.push({ algorithm, digest });
  for (var i = 0; i < 3; ++i) {
    fingerprints.push({
      algorithm,
      digest: digest.replace(/:./g, ':' + i.toString(16))
    });
  }
  return fingerprints;
}

const fingerprintRegex = /^a=fingerprint:(\S+) (\S+)/m;
const identityRegex = /^a=identity:(\S+)/m;

function fingerprintSdp(fingerprints) {
  return fingerprints.map(fp => 'a=fInGeRpRiNt:' + fp.algorithm +
                                ' ' + fp.digest + '\n').join('');
}

// Firefox only uses a single fingerprint.
// That doesn't mean we have it create SDP that describes two.
// This function synthesizes that SDP and tries to set it.

runNetworkTest(async () => {
  // this one fails setRemoteDescription if the identity is not good
  const pcStrict = new RTCPeerConnection({ peerIdentity: 'someone@example.com'});
  // this one will be manually tweaked to have two fingerprints
  const pcDouble = new RTCPeerConnection({});

  const stream = await getUserMedia({ video: true });
  ok(stream, 'Got test stream');
  const [track] = stream.getTracks();
  pcDouble.addTrack(track, stream);
  try {
    const offer = await pcDouble.createOffer();
    ok(offer, 'Got offer');
    const match = offer.sdp.match(fingerprintRegex);
    if (!match) {
      throw new Error('No fingerprint in offer SDP');
    }
    const fingerprints = makeFingerprints(match[1], match[2]);
    const assertion = await getIdentityAssertion(fingerprints);
    ok(assertion, 'Should have assertion');

    const sdp = offer.sdp.slice(0, match.index) +
        'a=identity:' + assertion + '\n' +
        fingerprintSdp(fingerprints.slice(1)) +
        offer.sdp.slice(match.index);

    await pcStrict.setRemoteDescription({ type: 'offer', sdp });
    ok(true, 'Modified fingerprints were accepted');
  } catch (error) {
    const e = SpecialPowers.wrap(error);
    ok(false, 'error in test: ' +
       (e.message ? (e.message + '\n' + e.stack) : e));
  }
  pcStrict.close();
  pcDouble.close();
  track.stop();
});
</script>
</body>
</html>
author	Ryan VanderMeulen <rvandermeulen@mozilla.com>
	Wed, 16 Jul 2025 03:22:15 +0300 (6 hours ago)
changeset 796707	3862f7d3e5c36c9d28f4b44ec4f530d43e7bcc8a
parent 671985	48cbd03e9b3926b857c49665b8aa3cb8299e2dee
permissions	-rw-r--r--