[OpenSIPS-Users] uac_replace_from/to

[Bogdan-Andrei Iancu]

Hi Anton,

by default, the module does auto restore of the FROM/TO hdr. The 
restoring is done in the traffic flowing in the opposite direction than 
the initial request. So, the uac_restore_xx() is NOT an uac_undo_xx() !

As I understand, you do serial forking and for you want to do different, 
or not to do, uac_replaces for each branch. If this is the case, you 
need to do the uac_replace_xx() in the branch_route - by doing this, the 
change will impact only that branch, without any effect on the other 
branches.


branch_route[change_from]
{
     if ($avp(furi)!=NULL)
         uac_replace_from("$avp(furi)");
}

route {
     $avp(furi) = "...";
     t_on_branch("change_from");
t_on_failure("missed_call");
}


failure_route[missed_call]
{
     $ru = "..";

     $avp(furi) = "..."; # if you want a different FROM URI
$avp(furi) = NULL; # if you want to keep the original URI

     ....
}

Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
   https://www.opensips-solutions.com
OpenSIPS Summit, Amsterdam, May 2020
   https://www.opensips.org/events/Summit-2020Amsterdam/
OpenSIPS Bootcamp, Miami, March 2020
   https://opensips.org/training/OpenSIPS_Bootcamp_2020/

On 2/4/20 3:39 PM, Антон Ершов wrote:
> Hello friends
> Help me to understand. In request_route i make replace from and to 
> fields.
> After an unsuccessful attempt to invite, I try to direct the call to 
> another place and again I need to replace the from and to fields. But 
> instead of replacing, new values are simply added
>
> route {
>     ...
>     route(rewrite_header);
>     ...
> }
> failure_route[missed_call] {
>     setflag(need_uac_restore);
>     ...
>     route(rewrite_header);
> }
> route[rewrite_header] {
>     if (isflagset(need_uac_restore)) {
>         xlog("L_INFO", "[ $ci ] - restore from and to fields\n");
>         uac_restore_from();
>         uac_restore_to();
>     }
>    uac_replace_from("","sip:$avp(fromuser)@$avp(fromdomain)");
>      uac_replace_to("","sip:$avp(touser)@$avp(todomain)");
> }
>
> in the end I get such fields
>
> From:  <sip:2220222 at 10.10.10.10 
> <mailto:sip%3A2220222 at 10.10.10.10>><sip:5274274 at sipofon.loc>;tag=fe654d87-7565-408f-9925-98a5bac99e1c
> To: <sip:3865071 at 10.10.10.10 
> <mailto:sip%3A3865071 at 10.10.10.10>><sip:3865071 at sipofon.loc>
>
> it simply appends the new value to the old and does not replace it
> changing replace modes in uac module does not change behavior
> in debug log i see this
>
> DBG:uac:replace_uri: uri to replace [<sip:2220222 at 10.23.100.40 
> <mailto:sip%3A2220222 at 10.23.100.40>>], replacement is 
> [<sip:79385274274 at multifon.ru <mailto:sip%3A79385274274 at multifon.ru>>]
> DBG:dialog:new_dlg_val: inserting <739823>=<<sip:5274274 at sipofon.loc>>
> DBG:dialog:store_dlg_value_unsafe: var found-> 
> <<sip:2220222 at 10.10.10.10 <mailto:sip%3A2220222 at 10.10.10.10>>>!
> DBG:uac:replace_uri: uri to replace [<sip:3865071 at 10.100.100.100 
> <mailto:sip%3A3865071 at 10.100.100.100>>], replacement is 
> [<sip:3865071 at sipofon.loc>]
> DBG:dialog:new_dlg_val: inserting <739824>=<<sip:3865071 at sipofon.loc>>
> DBG:dialog:store_dlg_value_unsafe: var found-> 
> <<sip:3865071 at 10.10.10.10 <mailto:sip%3A3865071 at 10.10.10.10>>>!
>
> 10.23.100.40 - call initiator
> 10.10.10.10 - where should the call go first
> 10.100.100.100 - opensips
> sipofon.loc - where should the call go after failure_route has worked
>
>
>
>
>
>
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.opensips.org/pipermail/users/attachments/20200204/20c9f117/attachment.html>