Re: [OpenSER-Users] OpenSER 1.2.2 and 302 Moved, funny log issue? - sr-users

28 Feb 2008

Thank you for your replies.  

The sipwise code did have an append branch and a branch route that dropped local
branches.

-- 
zahid

-----Original Message-----
From: "Andreas Granig" &lt;agranig(a)sipwise.com&gt;
To: "Bogdan-Andrei Iancu" &lt;bogdan(a)voice-system.ro&gt;
Cc: "Zahid Mehmood" &lt;zm23(a)columbia.edu&gt;du>;
&quot;users(a)lists.openser.org&quot; &lt;users(a)lists.openser.org&gt;
Sent: 2/28/08 6:32 AM
Subject: Re: [OpenSER-Users] OpenSER 1.2.2 and 302 Moved, funny log issue?

Hi,

Puh, it's been a while since I wrote that, so let me think :)
As far as I remember, the idea was to extract the first branch and push 
it into R-URI, then jump somewhere into the route sections where quite 
some R-URI manipulation and checking is done (and most of the functions 
can only operate on r-uri, so...)... after that, the ruri is again 
appended as branch before sending it out. Only problem is that you can 
only use one destination.

Bogdan, what exactly do you mean by "if it does append_branch somewhere 
later, it will just duplicate a branch"?

Cheers,
Andreas

Bogdan-Andrei Iancu wrote:
...
  Hi Zahid,

 To be honest, I do not see the purpose of this:

         # get last URI from destination-set and set it as R-URI
         avp_delete("$avp(s:tmp)/g");
         $avp(s:tmp) = $ds;
         avp_subst("$avp(s:tmp)", "/.*(sip:.+@[^:;>]+).*$/\1/");
         avp_pushto("$ru", "$avp(s:tmp)");

 This code fetches the first branch (by using the $ds pv and the regexp) 
 and push it as RURI; but if there is no following append_branch(), it 
 has 0 effect. And if it does append_branch somewhere later, it will just 
 duplicate a branch....

 Maybe Andreas (here CCed) can give you some details on this.....

 Regards,
 Bogdan

 Zahid Mehmood wrote:
  Hi,
     If get_redirect() is already pushing the contacts as branches,  
 then what is the purpose /  benefit / drawback of doing something 
 like  this:

 taken from sipwise online config:

          if(!get_redirects("1:1"))
          {

              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
          avp_delete("$avp(s:tmp)/g");
          $avp(s:tmp) = $ds;
          avp_subst("$avp(s:tmp)", "/.*(sip:.+@[^:;>]+).*$/\1/");
          avp_pushto("$ru", "$avp(s:tmp)");

 I'd greatly appreciate your answers as they will help me better  
 understand the use of branches/destination set.

 Thanks.