tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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promises-call.html (4020B)

      1 <!doctype html>
      2 <!--
      3 This test uses data only, and thus does not require fake media devices.
      4 -->
      5 
      6 <html>
      7 <head>
      8  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
      9  <title>RTCPeerConnection Data-Only Connection Test with Promises</title>
     10 </head>
     11 <body>
     12  <div id="log"></div>
     13  <h2>iceConnectionState info</h2>
     14  <div id="stateinfo">
     15  </div>
     16 
     17  <!-- These files are in place when executing on W3C. -->
     18  <script src="/resources/testharness.js"></script>
     19  <script src="/resources/testharnessreport.js"></script>
     20  <script type="text/javascript">
     21  var test = async_test('Can set up a basic WebRTC call with only data using promises.');
     22 
     23  var gFirstConnection = null;
     24  var gSecondConnection = null;
     25 
     26  var onIceCandidateToFirst = test.step_func(function(event) {
     27    gSecondConnection.addIceCandidate(event.candidate);
     28  });
     29 
     30  var onIceCandidateToSecond = test.step_func(function(event) {
     31    gFirstConnection.addIceCandidate(event.candidate);
     32  });
     33 
     34  var onIceConnectionStateChange = test.step_func(function(event) {
     35    assert_equals(event.type, 'iceconnectionstatechange');
     36    var stateinfo = document.getElementById('stateinfo');
     37    stateinfo.innerHTML = 'First: ' + gFirstConnection.iceConnectionState
     38                        + '<br>Second: ' + gSecondConnection.iceConnectionState;
     39    // Note: All these combinations are legal states indicating that the
     40    // call has connected. All browsers should end up in completed/completed,
     41    // but as of this moment, we've chosen to terminate the test early.
     42    // TODO: Revise test to ensure completed/completed is reached.
     43    if (gFirstConnection.iceConnectionState == 'connected' &&
     44        gSecondConnection.iceConnectionState == 'connected') {
     45      test.done()
     46    }
     47    if (gFirstConnection.iceConnectionState == 'connected' &&
     48        gSecondConnection.iceConnectionState == 'completed') {
     49      test.done()
     50    }
     51    if (gFirstConnection.iceConnectionState == 'completed' &&
     52        gSecondConnection.iceConnectionState == 'connected') {
     53      test.done()
     54    }
     55    if (gFirstConnection.iceConnectionState == 'completed' &&
     56        gSecondConnection.iceConnectionState == 'completed') {
     57      test.done()
     58    }
     59  });
     60 
     61  // This function starts the test.
     62  test.step(function() {
     63    gFirstConnection = new RTCPeerConnection(null);
     64    test.add_cleanup(() => gFirstConnection.close());
     65    gFirstConnection.onicecandidate = onIceCandidateToFirst;
     66    gFirstConnection.oniceconnectionstatechange = onIceConnectionStateChange;
     67 
     68    gSecondConnection = new RTCPeerConnection(null);
     69    test.add_cleanup(() => gSecondConnection.close());
     70    gSecondConnection.onicecandidate = onIceCandidateToSecond;
     71    gSecondConnection.oniceconnectionstatechange = onIceConnectionStateChange;
     72 
     73    // The createDataChannel is necessary and sufficient to make
     74    // sure the ICE connection be attempted.
     75    gFirstConnection.createDataChannel('channel');
     76 
     77    var atStep = 'Create offer';
     78 
     79    gFirstConnection.createOffer()
     80    .then(function(offer) {
     81      atStep = 'Set local description at first';
     82      return gFirstConnection.setLocalDescription(offer);
     83    })
     84    .then(function() {
     85      atStep = 'Set remote description at second';
     86      return gSecondConnection.setRemoteDescription(
     87          gFirstConnection.localDescription);
     88    })
     89    .then(function() {
     90      atStep = 'Create answer';
     91      return gSecondConnection.createAnswer();
     92    })
     93    .then(function(answer) {
     94      atStep = 'Set local description at second';
     95      return gSecondConnection.setLocalDescription(answer);
     96    })
     97    .then(function() {
     98      atStep = 'Set remote description at first';
     99      return gFirstConnection.setRemoteDescription(
    100          gSecondConnection.localDescription);
    101    })
    102    .then(function() {
    103      atStep = 'Negotiation completed';
    104    })
    105    .catch(test.step_func(function(e) {
    106      assert_unreached('Error ' + e.name + ': ' + e.message +
    107                       ' happened at step ' + atStep);
    108    }));
    109  });
    110 </script>
    111 
    112 </body>
    113 </html>