preform the registration lookup and set the socket in internal_to_external_relay (#100)

kamailio/default.cfg

@@ -552,13 +552,6 @@ route[PREPARE_INITIAL_REQUESTS]
         }
     }
 
-    if ( is_method("INVITE|MESSAGE|NOTIFY") && isflagset(FLAG_INTERNALLY_SOURCED) && $hdr(X-KAZOO-AOR) != $null && registered("location", "$hdr(X-KAZOO-AOR)")) 
-    {
-       $avp(kazoo_aor) = $hdr(X-KAZOO-AOR);
-       $avp(kazoo_du) = $xavp(ulrcd=>received);
-       xlog("L_INFO", "$ci|end|setting aor avp : AOR : $hdr(X-KAZOO-AOR)\n");
-    };
-
     record_route();
 }
 
@@ -582,6 +575,19 @@ route[INTERNAL_TO_EXTERNAL_RELAY]
     }
     #!endif
 
+    if ($hdr(X-KAZOO-AOR) != $null) {
+        xlog("L_INFO", "$ci|log|using AOR $hdr(X-KAZOO-AOR)\n");
+        if (reg_fetch_contacts("location", "$hdr(X-KAZOO-AOR)", "callee")) {
+            $du = $(ulc(callee=>received));
+            $fs = $(ulc(callee=>socket));
+            xlog("L_INFO", "$ci|log|routing $hdr(X-KAZOO-AOR) to $du via $fs\n");
+        } else {
+            xlog("L_INFO", "$ci|end|user is not registered\n");
+            sl_send_reply("404", "Not registered");
+            exit;
+        }
+    }
+
     remove_hf_re("^X-.*");
     
     if( $avp(kazoo_aor) != $null)