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RE: [ortc] Example 6 is wrong

From: Bernard Aboba <Bernard.Aboba@microsoft.com>
Date: Sun, 27 Dec 2015 01:02:16 +0000
To: "public-ortc@w3.org" <public-ortc@w3.org>
Message-ID: <BLUPR03MB149B763C21B1469A9B9FB39ECFA0@BLUPR03MB149.namprd03.prod.outlook.com>
Filed PR to address this:
https://github.com/openpeer/ortc/issues/310


-----Original Message-----
From: IƱaki Baz Castillo via GitHub [mailto:sysbot+gh@w3.org] 
Sent: Saturday, December 26, 2015 5:37 AM
To: public-ortc@w3.org
Subject: [ortc] Example 6 is wrong

ibc has just created a new issue for https://github.com/openpeer/ortc:


== Example 6 is wrong ==
```js
  
RTCCertificate.generateCertificate(keygenAlgorithm).then(function(certificate){
    var cert = certificate;
    // Obtain the fingerprint of the created certificate
    dtlsParameters.fingerprints[0] = cert.fingerprint;
  }, function(){
    trace('Certificate could not be created');
  });
  // Prepare to handle remote ICE candidates
  mySignaller.onRemoteCandidate = function(remote) {
    // Figure out which IceTranport a remote candidate relates to by matching the userNameFragment/password
    var j = 0;
    for (j = 0; j < iceTransport.length; j++) {
      var transport = iceTransports[j];
      if (transport.getRemoteParameters().userNameFragment ===
remote.parameters.userNameFragment)
        transport.addRemoteCandidate(remote.candidate);
      }
    }  };
  // ... create RtpSender/RtpReceiver objects as illustrated in Section 6.5 Example 9.

  mySignaller.mySendInitiate({
    "ice": iceGatherer.getLocalParameters(),
    "dtls": dtlsParameters,
    // ... marshall RtpSender/RtpReceiver capabilities as illustrated in Section 6.5 Example 9.
  }, function(remote) {
    // Create the ICE and DTLS transports
    var iceTransport = new RTCIceTransport(iceGatherer);
    iceTransport.start(iceGatherer, https://na01.safelinks.protection.outlook.com/?url=remote.ice&data=01%7c01%7cBernard.Aboba%40microsoft.com%7c2b7b8f1273d54821a48308d30df9c08b%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=toRlwrAm5bJikqSq8j4QgNrbVQaxNZgVYmuyvUHGJoE%3d,

RTCIceRole.controlling);
    iceTransports.push(iceTransport);
    // Construct a RTCDtlsTransport object with the same certificate and fingerprint as in the Offer
    // so that the remote peer can verify it.
    var dtlsTransport = new RTCDtlsTransport(iceTransport, cert);     
// <---- There is no `cert` var
    dtlsTransport.start(remote.dtls);
    dtlsTransports.push(dtlsTransport);

    // ... configure RtpSender/RtpReceiver objects as illustrated in Section 6.5 Example 9.
  });
```

In `var dtlsTransport = new RTCDtlsTransport(iceTransport, cert);` such a `cert` variable does not exist in that scope. It was defined in  the `resolve` function of the `RTCCertificate.generateCertificate()`
returned Promise.

For this to be valid, `var cert` should be declared above the `RTCCertificate.generateCertificate()` call.

Please view or discuss this issue at
https://github.com/openpeer/ortc/issues/310 using your GitHub account

Received on Sunday, 27 December 2015 01:02:47 UTC

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