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List:       serusers
Subject:    Re: [SR-Users] redirect client to keep original ruri
From:       Andrew Pogrebennyk <apogrebennyk () sipwise ! com>
Date:       2012-01-30 17:02:20
Message-ID: 4F26CD1C.8070800 () sipwise ! com
[Download RAW message or body]

Since this thread will probably end up in Google I''ll share my
experience. I ended up with this"

        if(t_check_status("301|302"))
        {
                #NOTE: must assign to $du to keep R-URI intact
                $var(contact) = $T_rpl($ct);
                $var(contact) = $(var(contact){nameaddr.uri});
                $du = $var(contact);
                xlog("L_INFO", "Redirect from proxy intercepted - M=$rm
R=$ru F=$fu T=$tu IP=$avp(s:ip):$avp(s:port) ($si:$sp) ID=$ci\n");
                append_branch();
                route(ROUTE_RELAY);
                exit;
        }

where route(ROUTE_RELAY) is merely a call t_relay_to("0x01") wrapped up
in some logging. So far so good.

There was a problem when a new request target needed digest-ch'd the
caller with 407. The redirect server by default relayed not 407 but 302
reply back. I've set tm modparam failure_reply_mode to 3 - voila!

http://kamailio.org/docs/modules/3.1.x/modules/tm.html#failure_reply_mode

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