[Telepathy] TURN servers in Empathy

[Olivier Crête]

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On 26/01/15 08:51 AM, Dominik George wrote:
> Hi,
> 
>> The best first step would probably be to make the TURN relay
>> hostname, port, username and password configurable as
>> "parameters" in src/protocol.c, the same way the STUN server
>> hostname/port and HTTPS proxy hostname/port are currently
>> configurable, […]
> 
> I'd even say the existing stun-server parameters could simply be
> reused and the UI element be relabled as STUN/TURN-Server. At
> least, I cannot see any reason why the STUN server should be
> different from the TURN relay, and other clients (including Jitsi)
> do that as well.

Except that for a TURN server, you need to pass the username and
password too. Otherwise it's mostly the same.

> Technically, the servers could be split, but as all relevant TURN
> server implementations also do STUN and there is no reason to
> disable that, I think it is a very safe bet.

All TURN servers are also STUN servers, so it's definitely very valid
to only supply  a TURN  server.

The annoying part is that you have to pass the TURN server config
through telepathy-gabble. TURN servers should really be proposed by
the XMPP server, but it seems that no one else than Google went
through the effort of designing something that actually works. The
Telepathy-Farstream & Farstream part should already support it, so all
the work is in Gabble and in Empathy.

- -- 
Olivier Crête
olivier.crete at collabora.com
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