WebRTC Login

B. Wayne

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Jun 18, 2013, 2:31:06 PM6/18/13

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Hello All,

I am a newb so bear with me...

I was looking at the source of https://apprtc.appspot,com a demo application of WebRTC's website. I have question regarding following snippet.

...

<body>

var channelToken = 'AHRlWrriku5s-9JF4CkubPScZ5z5vgyss5sA4Q3ncKc9U81qZvFeipuD7n4qAlmWz0I7vBuLe_Kj5SV_jShAhm3T1FrNAbCas1-BaplM9gRSwDlOk4xD5xg';

var me = '25651980';

var roomKey = '59013813';

var roomLink = 'https://apprtc.appspot.com/?r=59013813';

var initiator = 0;

var pcConfig = {"iceServers": [{"url": "stun:stun.l.google.com:19302"}]};

var pcConstraints = {"optional": [{"DtlsSrtpKeyAgreement": true}]};

var offerConstraints = {"optional": [], "mandatory": {}};

var mediaConstraints = {"audio": true, "video": {"mandatory": {}, "optional": []}};

var turnUrl = 'https://computeengineondemand.appspot.com/turn?username=25651980&key=4080218913';

var stereo = false;

setTimeout(initialize, 1);

</script>

where/how are the channelToken, roomKey, roomLink and other var's values are generated and assigned? Do I have to use google's STUN servers?

Thank you in advance.

Alexandre GOUAILLARD

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Jun 18, 2013, 3:03:22 PM6/18/13

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hi B wayne,

the webpage is generated from a template by the web server.

the code for the web server is here: http://code.google.com/p/webrtc/source/browse/trunk/samples/js/apprtc/apprtc.py

on line 284 you have the main class which computes those values and use them to render the template.

you do not have to use google stun (or turn server) if you don't want to. If you have your own servers you can pass them by using the ss, ts, tp (stun server, turn server, turn password respectively) on the url manually. If you have nothing, the code provides you with a complete solution. Optionally, get the source code, modify it, and upload it in GAE to have a fully modified version of the apprtc version running.

alex.

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B. Wayne

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Jun 19, 2013, 12:13:26 PM6/19/13

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Thank you for the reply Alex. One more question,

I was looking through the apprtc.py and I was wondering how is the authentication of stun:stun.l.google.com:19302 done? like username or password?

Thank you again!

Philipp Hancke

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Jun 19, 2013, 12:37:38 PM6/19/13

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STUN typically doesn't require authentication -- TURN does and the process apprtc uses is described at

https://docs.google.com/document/d/1mG7eXFQ5o-ypMWQ1IzdkBQL0UBkLN1xXUJhJcIF5ujQ/edit

Oleg Moskalenko

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Jun 19, 2013, 3:12:34 PM6/19/13

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A detailed description how TURN REST API works can be found here, scroll down to the section "TURN REST API":

http://code.google.com/p/rfc5766-turn-server/wiki/Readme

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