[Users] Create 302 message and modify contact header

[Christophe Irles]

Thanks for the hint and sorry I miss this example.

But unfortunately I have a infinite loop if I use directly the example...

I tried to redirect the call to 101 when 102 is used (100 is making the
call)

When I used a config file like that:
	# rewrite current URI, which is always part of destination ser
	rewriteuri("sip:102 at christophe.fr");

	# append one more URI to the destination ser
	append_branch("sip:101 at christophe.fr");

	# redirect now
	sl_send_reply("300", "Redirect");
	exit;
=> Infinite loop !

Now if I use only:
	# append one more URI to the destination ser
	append_branch("sip:101 at christophe.fr");

	# redirect now
	sl_send_reply("300", "Redirect");
	exit;
 => The call is redirected correctly but if 101 cancel the call if have a
"Call failed: 404 user not found" on the device 100. Is it normal ?

Another point: in the example on the end of each URI, there is ":9". Why ?
Example: append_branch("sip:redirect at siphub.net:9");

And finally: the function append_branch() doesn't seem to accept avp value
...

Thanks,
Christophe

-----Message d'origine-----
De : Daniel-Constantin Mierla [mailto:daniel at voice-system.ro] 
Envoyé : mardi 22 août 2006 16:04
À : Christophe Irles
Cc : 'Greg Fausak'; 'OpenSER'
Objet : Re: [Users] Create 302 message and modify contact header

If you got OpenSER sources, look into examples directory, you have a
redirect.cfg file. Online, you can browse it via:

http://openser.cvs.sourceforge.net/openser/sip-server/examples/redirect.cfg?
revision=1.2&view=markup

Cheers,
Daniel


On 08/22/06 16:58, Christophe Irles wrote:
>  
> Before to reply a 302, I need to change the contact header in order to 
> specify the URI of the new callee.
>  
> For example A call B, but from the config file I know B wants to 
> redirect calls to C. So I must specify the URI of user C in the 
> contact header of the 302 message
>  
> In your example, you change only the domain:
> A call B at test.fr and you change the message to A call B at test.com 
> <mailto:B at test.com>
>  
> Christophe
>
> ----------------------------------------------------------------------
> -- *De :* Greg Fausak [mailto:lgfausak at gmail.com] *Envoyé :* mardi 22 
> août 2006 15:44 *À :* Christophe Irles *Cc :* OpenSER *Objet :* Re: 
> [Users] Create 302 message and modify contact header
>
> I don't know if this is right, but:
>
> if(is_method("INVITE"))
> {
> rewritehostport("test.com");
> sl_send_reply("302", "Moved Temporarily"); }
>
> seems to work for me.
>
> I'd try loading some branches if you want more than one item in the 
> contact header. Just guessing though, I'm usually the recipient of a 
> 302!
>
> -g
>
> On Aug 22, 2006, at 8:24 AM, Christophe Irles wrote:
>
>> Hi,
>>
>> I checked archive without any result... >From an openSER rule, I want 
>> to create a 302 message if a specific RURI is used.
>>
>> First I need to change the contact header to specify the URI of the 
>> new callee.
>>
>> I tried something like that:
>> avp_printf("$avp(s:100)", "sip:test at christophe.fr 
>> <mailto:test at christophe.fr>;target=$ruri;cause=486;");
>> avp_pushto("$ct", "$avp(s:100)"); # => error generated on this line
>>
>> ERROR:avpops:fixup_pushto_avp: unsupported destination "$ct"; 
>> expected $ru,$du,$br
>>
>> So how can I modify the contact header ?
>>
>> Just after the update on the contact header I envisaged to use this 
>> function sl_send_reply(302, "Moved Temporarily")
>>
>> Is it correct ? Is there a better way to 'create' 302 message in this 
>> case ?
>> I check UAC_REDIRECT module but I don't think I can use it in this 
>> case or perhaps I missed something
>>
>> Before to use a 302 message I succesfully tested to create a new 
>> INVITE with the $ruri modified correctly. But I would like to create 
>> a 302 message to prevent any problem of authentication.
>>
>> Thanks,
>> Christophe
>>
>> _______________________________________________
>> Users mailing list
>> Users at openser.org <mailto:Users at openser.org> 
>> http://openser.org/cgi-bin/mailman/listinfo/users
>
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