Re: [rtcweb] Facebook is not SIP

Harald Alvestrand <harald@alvestrand.no> Thu, 20 October 2011 09:52 UTC

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Date: Thu, 20 Oct 2011 11:52:35 +0200
From: Harald Alvestrand <harald@alvestrand.no>
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To: Tim Panton <tim@phonefromhere.com>
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Cc: rtcweb@ietf.org
Subject: Re: [rtcweb] Facebook is not SIP
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On 10/20/11 11:39, Tim Panton wrote:
> On 20 Oct 2011, at 10:30, Harald Alvestrand wrote:
>
>> On 10/20/11 11:23, Iñaki Baz Castillo wrote:
>>> Hi all,
>>>
>>> When two Facebook users chat via web, they are already using a
>>> signaling protocol in-the-wire, which one? The *custom* signaling
>>> protocol Facebook designed.
>> They're using XMPP: https://developers.facebook.com/docs/chat/
> Yes, they are using XMPP - but are they using it to the browser or only for interop? The
> document does not say, and I haven't wiresharked the traffic to see,
> at the very least I imagine they are running it over http / websockets.
I stand corrected; they are running their own protocol between the 
browser and their servers.
As does Google, for that matter, even though our backends are XMPP-based.

Sorry for going off half-baked.

           Harald