presence-role fix fo mixed case uri

kamailio/presence-role.cfg

@@ -48,6 +48,7 @@ route[HANDLE_SUBSCRIBE]
             exit;
         }
 
+        $ru = $(ru{s.tolower});
         handle_subscribe();
 
         ##RabbitMQ
@@ -57,7 +58,7 @@ route[HANDLE_SUBSCRIBE]
            $var(fs_contact) = $var(fs_contact) + ";" + $(ct{tobody.params});
         }
 
-        $var(amqp_payload_request) = "{'Event-Category' : 'presence', 'Event-Name' : 'subscription', 'Event-Package' : '" + $hdr(event) + "', 'Expires' : " + $hdr(Expires) + ", 'Queue' : 'BLF-MY_HOSTNAME', 'Server-ID' : 'BLF-MY_HOSTNAME' ,'Contact' : '" + $var(fs_contact) + "', 'Call-ID' : '" + $ci + "', 'From' : '" + $fu +"', 'User' : '" + $tu + "', 'User-Agent' : '" + $ua + "' }";
+        $var(amqp_payload_request) = "{'Event-Category' : 'presence', 'Event-Name' : 'subscription', 'Event-Package' : '" + $hdr(event) + "', 'Expires' : " + $hdr(Expires) + ", 'Queue' : 'BLF-MY_HOSTNAME', 'Server-ID' : 'BLF-MY_HOSTNAME' ,'Contact' : '" + $var(fs_contact) + "', 'Call-ID' : '" + $ci + "', 'From' : '" + $(fu{s.tolower}) +"', 'User' : '" + $(tu{s.tolower}) + "', 'User-Agent' : '" + $ua + "' }";
 
         kazoo_publish("dialoginfo_subs", "dialoginfo_subs", $var(amqp_payload_request));