[Jingle] XEP-0215 support?

Peter Saint-Andre stpeter at stpeter.im
Mon Nov 17 16:56:57 CST 2008


I never received any feedback on this issue.

Do Openfire, ejabberd, and Telepathy support XEP-0215 or do they use
XEP-0030 for these external service discovery use cases? If they use
XEP-0030, how?

/psa

Peter Saint-Andre wrote:
> I saw this interesting bug report on the Telepathy list (yes, I'm on
> every discussion list that is even vaguely related to XMPP).
> 
> I pose some related questions at the end of this message, and I have
> cc'd developers on Openfire and ejabberd so we can figure this out.
> 
> ***
> 
> -------- Original Message --------
> From: bugzilla-daemon at freedesktop.org
> To: telepathy at lists.freedesktop.org
> Date: Thu,  9 Oct 2008 18:24:05 -0700 (PDT)
> Subject: [Telepathy] [Bug 17995] New: discover STUN servers from disco
> requests
> 
> http://bugs.freedesktop.org/show_bug.cgi?id=17995
> 
>            Summary: discover STUN servers from disco requests
>            Product: Telepathy
>            Version: unspecified
>           Platform: Other
>         OS/Version: All
>             Status: NEW
>           Severity: normal
>           Priority: medium
>          Component: telepathy-gabble
>         AssignedTo: will.thompson at collabora.co.uk
>         ReportedBy: robert.mcqueen at collabora.co.uk
>          QAContact: telepathy at lists.freedesktop.org
> 
> 
> Recent releases XMPP servers like OpenFire and Ejabberd come with STUN
> server plugins which get advertised in the server's disco responses. We
> should find such things and use them to set the STUN server and port
> used for Jingle calls if we didn't get one by doing the google:relay
> thing and the user didn't specify one.
> 
> ***
> 
> 
> My question is: how do these STUN server plugins work in relation to the
> XMPP servers and service discovery? Do Openfire and ejabbed use standard
> service discovery to advertise the existence of the STUN server plugin?
> If so, what is the JID advertised for the STUN server? Typical STUN
> servers do not communicate via XMPP, so I'm wondering what the JID is.
> And are these STUN server plugins different from standard STUN servers?
> If so, how and why? Note that there is an SRV record lookup method for
> STUN servers, so the XMPP service discovery method is only a fallback.
> 
> Instead of using standard XMPP service discovery (XEP-0030) as the
> fallback, another option is to use "external service discovery"
> (XEP-0215), which is very similar to what Google Talk does:
> 
> http://xmpp.org/extensions/xep-0215.html
> 
> I'd like to get some clarification on this so that we can figure out the
> right way to proceed and especially to ensure interoperability here!
> 
> Peter
> 



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