/**
* Create a new leg object for incoming request message.
*
* @param agent agent object
* @param callback function which is called for each
* incoming request belonging to this leg
* @param magic call leg context
* @param msg a request message
*
* @note The ownership of @a msg will pass back to NTA upon successful call
* to the function nta_msg_leg(). In other words, if the call to @a
* nta_msg_leg() is successful, the application may not do anything with @a
* msg anymore. Instead of that, NTA will create of a new incoming request
* object for the @a msg and eventually return the request to application by
* calling the @a callback function.
*
* @deprecated Use nta_leg_stateful() instead.
*/
nta_leg_t *nta_msg_leg(nta_agent_t *agent,
msg_t *msg,
nta_request_f *callback,
nta_leg_magic_t *magic,
...)
{
nta_leg_t *leg;
sip_t *sip = sip_object(msg);
SU_DEBUG_9(("\tnta_msg_leg(): called\n"));
assert(msg && sip && sip->sip_request);
if (!msg || !sip || !sip->sip_request || !callback)
return NULL;
leg = nta_leg_tcreate(agent, callback, magic,
SIPTAG_CALL_ID(sip->sip_call_id),
SIPTAG_FROM(sip->sip_to), /* local address */
SIPTAG_TO(sip->sip_from), /* remote address */
TAG_END());
if (!leg)
/* xyzzy */;
else if (nta_leg_server_route(leg, sip->sip_record_route,
sip->sip_contact) < 0)
nta_leg_destroy(leg), leg = NULL;
else if (nta_leg_stateful(leg, msg) < 0)
nta_leg_destroy(leg), leg = NULL;
SU_DEBUG_9(("\tnta_msg_leg(): returns %p\n", leg));
return leg;
}
/**@internal
* UAS tag and route.
*
* Update dialog tags and route on the UAS side.
*
* @param own dialog owner
* @param ds dialog state
* @param sip SIP message containing response used to update dialog
* @param rtag if true, set remote tag within the leg
*/
void nua_dialog_uas_route(nua_owner_t *own,
nua_dialog_state_t *ds,
sip_t const *sip,
int rtag)
{
int established = nua_dialog_is_established(ds);
if (!established && sip->sip_from->a_tag)
ds->ds_remote_tag = su_strdup(own, sip->sip_from->a_tag);
if (ds->ds_leg == NULL)
return;
nta_leg_server_route(ds->ds_leg, sip->sip_record_route, sip->sip_contact);
ds->ds_route = ds->ds_route || sip->sip_record_route || sip->sip_contact;
if (rtag && !established && sip->sip_from->a_tag)
nta_leg_rtag(ds->ds_leg, sip->sip_from->a_tag);
}
int DrachtioController::processRequestOutsideDialog( nta_leg_t* defaultLeg, nta_incoming_t* irq, sip_t const *sip) {
DR_LOG(log_debug) << "processRequestOutsideDialog" << endl ;
int rc = validateSipMessage( sip ) ;
if( 0 != rc ) {
return rc ;
}
switch (sip->sip_request->rq_method ) {
case sip_method_invite:
{
/* TODO: should support optional config to only allow invites from defined addresses */
/* system-wide minimum session-expires is 90 seconds */
if( sip->sip_session_expires && sip->sip_session_expires->x_delta < 90 ) {
nta_incoming_treply( irq, SIP_422_SESSION_TIMER_TOO_SMALL,
SIPTAG_MIN_SE_STR("90"),
TAG_END() ) ;
return 0;
}
string transactionId ;
generateUuid( transactionId ) ;
nta_incoming_treply( irq, SIP_100_TRYING, TAG_END() ) ;
if( !m_pClientController->route_request_outside_dialog( irq, sip, transactionId ) ) {
DR_LOG(log_error) << "No providers available for invite" << endl ;
return 503 ;
}
nta_leg_t* leg = nta_leg_tcreate(m_nta, legCallback, this,
SIPTAG_CALL_ID(sip->sip_call_id),
SIPTAG_CSEQ(sip->sip_cseq),
SIPTAG_TO(sip->sip_from),
SIPTAG_FROM(sip->sip_to),
TAG_END());
if( NULL == leg ) {
DR_LOG(log_error) << "Error creating a leg for origination" << endl ;
//TODO: we got a client out there with a dead INVITE now...
return 500 ;
}
boost::shared_ptr<SipDialog> dlg = boost::make_shared<SipDialog>( leg, irq, sip ) ;
dlg->setTransactionId( transactionId ) ;
string contactStr ;
generateOutgoingContact( sip->sip_contact, contactStr ) ;
nta_leg_server_route( leg, sip->sip_record_route, sip->sip_contact ) ;
m_pDialogController->addIncomingInviteTransaction( leg, irq, sip, transactionId, dlg ) ;
}
break ;
case sip_method_ack:
/* success case: call has been established */
nta_incoming_destroy( irq ) ;
return 0 ;
case sip_method_register:
case sip_method_message:
case sip_method_options:
case sip_method_notify:
{
string transactionId ;
generateUuid( transactionId ) ;
if( !m_pClientController->route_request_outside_dialog( irq, sip, transactionId ) ) {
DR_LOG(log_error) << "No providers available for register" << endl ;
return 503 ;
}
m_pDialogController->addIncomingRequestTransaction( irq, transactionId ) ;
return 0 ;
}
case sip_method_bye:
case sip_method_cancel:
DR_LOG(log_error) << "Received BYE or CANCEL for unknown dialog: " << sip->sip_call_id->i_id << endl ;
return 481 ;
default:
DR_LOG(log_error) << "DrachtioController::processRequestOutsideDialog - unsupported method type: " << sip->sip_request->rq_method_name << ": " << sip->sip_call_id->i_id << endl ;
return 501 ;
break ;
}
return 0 ;
}
