[OpenSIPS-Users] Getting header from 302

[David Villasmil]

Thanks Ben,

I understand now. Perfect.

David

On Thu, 3 Jun 2021 at 14:24, Ben Newlin <Ben.Newlin at genesys.com> wrote:

> Yes, if a reply route is armed or the global reply route exists, they are
> triggered first for any reply. Failure route, if armed, is triggered after
> that for any >=300 response codes.
>
>
>
> Ben Newlin
>
>
>
> *From: *Users <users-bounces at lists.opensips.org> on behalf of David
> Villasmil <david.villasmil.work at gmail.com>
> *Date: *Thursday, June 3, 2021 at 8:10 AM
> *To: *OpenSIPS users mailling list <users at lists.opensips.org>
> *Subject: *Re: [OpenSIPS-Users] Getting header from 302
>
> Oh I didn’t register that <reply> param. I’ll try with that.
>
> On the other hand, I may be confused about how opensips processes >299
> replies. Does it process them on onreply route and then goes to the failure
> route? I mean that’s what I’m doing right now, but is this intended by
> design? I would’ve though it’d go straight to the failure route, but
> actually going to the onreply route sounds smart.
>
>
>
> On Wed, 2 Jun 2021 at 22:08, Jeff Pyle <jeff at ugnd.org> wrote:
>
> I've been working on a proxy to sit between MS Teams and "normal" SIP
> stacks.  Teams sends way too many 180s and RTP-less 183s so I sanitize them
> like this:
>
> onreply_route[relay_reply] {
>         if (t_check_status("180")) {
>                 if (isflagset("GOT_180")) {
>                         drop;
>                 } else {
>                         setflag("GOT_180");
>                 }
>         }
>
>         if (isflagset("GOT_180") && t_check_status("183")) {
>                 drop;
>         }
>
> }
>
>
>
> With this I stop superfluous 18x messages from being relayed downstream.
> The 'drop' here kills the message completely.  You could include the drop
> if you want to stop the message from being relayed (which you probably do)
> and are finished processing it in the script (which you are probably not).
>
>
>
> If I understand your application correctly, I'd populate the AVP in the
> reply route and do everything else in the failure route.  Or, try Liviu's
> suggestion of using $(<reply>hdr(Identity)) in the failure_route directly.
> Either way, then continue in the failure_route to do whatever else needs to
> happen.
>
>
>
>
>
> - Jeff
>
>
>
>
>
>
>
> On Wed, Jun 2, 2021 at 2:10 PM David Villasmil <
> david.villasmil.work at gmail.com> wrote:
>
> Hello Jeff,
>
>
>
> That's exactly what I'm doing:
>
>
>
> # Relay to REDIRECT server
> route[relay_to_REDIRECT]
> {
>     t_on_reply("reply_from_REDIRECT");
>     t_on_failure("failure_from_REDIRECT");
>
>     xlog("L_ERR", "[$ci][$rm]: Relaying to REDIRECT");
>     if (!t_relay()) {
>         xlog("L_ERR", "[$ci][$rm]: unable to relay request $ru to $tU --
> replying with error");
>         sl_reply_error();
>     }
>
>     exit;
> }
>
> # Response from REDIRECT will come in here.
> failure_route[failure_from_REDIRECT]
> {
>     xlog("L_ERR", "[$ci][$rm]: I'm in
> failure_route[failover_from_REDIRECT]");
>     if (t_was_cancelled()) {
>         exit;
>     }
>
>     if(is_avp_set("$avp(myheader)")) {
>         xlog("L_ERR", "[$ci][$rm]: Got Identity Header: $(hdr(myheader))");
>         setflag(100);
>         route(invite);
>     }
> }
>
> # Response 302 from REDIRECT will come in here.
> onreply_route[reply_from_REDIRECT]
> {
>     xlog("L_ERR", "[$ci][$rm]: I'm in onreply_route[reply_from_REDIRECT]");
>     if (t_was_cancelled()) {
>         exit;
>     }
>
>     # detect redirect, store the header and send to "invite" as normally
>     if (t_check_status("302") && is_present_hf("myheader")) {
>         $avp(identity_header) = $(hdr(myheader));
>         setflag(100);
>         drop();
>     }
> }
>
>
>
> So I suppose i don't need the drop()?
>
>
>
> Regards,
>
>
>
> David Villasmil
>
> email: david.villasmil.work at gmail.com
>
> phone: +34669448337
>
>
>
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>
-- 
Regards,

David Villasmil
email: david.villasmil.work at gmail.com
phone: +34669448337
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