[OpenSIPS-Users] uac_redirect question

[Bogdan-Andrei Iancu]

Hi Zahid,

What operation/change do you need to perform on the contact ? I refer to 
the purpose of the subst ?
The idea is that get_redirects() adds the found contact as branches. 
Once a branch is created, you cannot delete it - you have to send the 
request to it  - at least this is the current approach.

Regards,
Bogdan

Zahid Mehmood wrote:
> Hi,
>      Need a little help with get_redirects(), using openser 1.2.  I am 
> using the following in failure_route to capture contacts from a 
> "multiple choices" reply from cisco media gateway.  
>
> Following code sets the ruri to the last contact, however, the $ds 
> show more information about other contacts.  Is there a way to reset 
> this so that only ruri information is used? Cisco response and xlog 
> information is also given below. 
>
> if(!get_redirects("*:*"))
>                 {
>                                 xlog("L_ERROR", "Failed to fetch 
> contact '$ct' from 301/302 - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n");
>                                 acc_db_request("480", "acc");
>                                 t_reply("480", "Temporarily Unavailable");
>                                 exit;
>                 }
> # get last URI from destination-set and set it as R-URI
>                 xlog("L_INFO", "Redirect from UAC intercepted 1 - 
> M=$rm RURI=$ru D=$ds B=$bR \nF=$fu T=$tu IP=$si ID=$ci\n");
>                 avp_delete("$avp(s:tmp)/g");
>                 $avp(s:tmp) = $ds;
>                 avp_subst("$avp(s:tmp)", "/.*(sip:.+@[^:;>]+).*$/\1/");
>                 avp_pushto("$ru", "$avp(s:tmp)");
>                 setflag(29);
>                 xlog("L_INFO", "Redirect from UAC intercepted 2 - 
> M=$rm RURI=$ru D=$ds B=$bR \ntmp=$avp(s:tmp) \nF=$fu T=$tu IP=$si 
> ID=$ci\n");
>                 append_branch();
> route(17); # process 
> exit;
> }
>
>
> Thanks in advance for your advice.  
>
> -- 
> Zahid
>   
>
>
> The response from gateway:
>
> U 2008/08/26 08:19:04.440411 10.10.0.32:5060 -> 10.10.0.98:5060
> SIP/2.0 300 Multiple Choices.
> Via: 
> SIP/2.0/UDP 10.10.0.98;branch=z9hG4bK901b.335cb695.0,SIP/2.0/UDP 10.10.12.140;branch=z9hG4bK612a4f20B9293665.
> From: "10521" <sip:10521 at devproxy.myip.org>;tag=B395F9F2-4618AC3F.
> To: <sip:40001 at devproxy.myip.org;user=phone>;tag=195535C4-11AC.
> Date: Tue, 26 Aug 2008 12:19:04 GMT.
> Call-ID: f7932e23-d89cd014-e3ea20a9 at 10.10.12.140.
> Server: Cisco-SIPGateway/IOS-12.x.
> CSeq: 2 INVITE.
> Allow-Events: telephone-event.
> Diversion: <sip:40001 at 10.10.0.32>;reason=unconditional;counter=1.
> Contact: <sip:10512 at 10.10.0.98>,<sip:10512 at 10.10.0.32>.
> Content-Length: 0.
>
>
> xlog entries:
>
>
> Aug 26 08:19:04 mousse openser[15353]: Redirect from UAC intercepted 1 - 
> M=INVITE RURI=sip:40001 at 10.10.0.32:5060;transport=udp  
> *D=Contact: sip:40001 at 10.10.0.32:5060;transport=udp, 
> <sip:10512 at 10.10.0.32>;q=0.01, <sip:10512 at 10.10.0.98>;q=0.01  *
> *B=<sip:10512 at 10.10.0.32>;q=0.01, <sip:10512 at 10.10.0.98>;q=0.01  *
> F=sip:10521 at devproxy.myip.org T=sip:40001 at devproxy.myip.org;user=phone 
> IP=10.10.12.140 ID=f7932e23-d89cd014-e3ea20a9 at 10.10.12.140 
>
> Aug 26 08:19:04 mousse openser[15353]: Redirect from UAC intercepted 2 - 
> M=INVITE RURI=sip:10512 at 10.10.0.98  
> *D=Contact: sip:10512 at 10.10.0.98, <sip:10512 at 10.10.0.32>;q=0.01, 
> <sip:10512 at 10.10.0.98>;q=0.01  *
> *B=<sip:10512 at 10.10.0.32>;q=0.01, <sip:10512 at 10.10.0.98>;q=0.01  *
> tmp=sip:10512 at 10.10.0.98  
> F=sip:10521 at devproxy.myip.org T=sip:40001 at devproxy.myip.org;user=phone 
> IP=10.10.12.140 ID=f7932e23-d89cd014-e3ea20a9 at 10.10.12.140 
>
> Aug 26 08:19:04 mousse openser[15353]: Redirect from UAC intercepted - 
> M=INVITE RURI=sip:10512 at 10.10.0.98  
> *D=Contact: sip:10512 at 10.10.0.98, <sip:10512 at 10.10.0.32>;q=0.01, 
> <sip:10512 at 10.10.0.98>;q=0.01, sip:10512 at 10.10.0.98  *
> *B=<sip:10512 at 10.10.0.32>;q=0.01, <sip:10512 at 10.10.0.98>;q=0.01, 
> sip:10512 at 10.10.0.98  *
> F=sip:10521 at devproxy.myip.org T=sip:40001 at devproxy.myip.org;user=phone 
> IP=10.10.12.140 ID=f7932e23-d89cd014-e3ea20a9 at 10.10.12.140 
>
>
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