void belle_sip_server_transaction_send_response(belle_sip_server_transaction_t *t, belle_sip_response_t *resp){
belle_sip_transaction_t *base=(belle_sip_transaction_t*)t;
belle_sip_header_to_t *to=(belle_sip_header_to_t*)belle_sip_message_get_header((belle_sip_message_t*)resp,"to");
belle_sip_dialog_t *dialog=base->dialog;
int status_code;
belle_sip_object_ref(resp);
if (!base->last_response){
belle_sip_hop_t* hop=belle_sip_response_get_return_hop(resp);
base->channel=belle_sip_provider_get_channel(base->provider,hop);
belle_sip_object_unref(hop);
if (!base->channel){
belle_sip_error("Transaction [%p]: No channel available for sending response.",t);
return;
}
belle_sip_object_ref(base->channel);
belle_sip_channel_add_listener(base->channel, BELLE_SIP_CHANNEL_LISTENER(t));
}
status_code=belle_sip_response_get_status_code(resp);
if (status_code!=100){
if (belle_sip_header_to_get_tag(to)==NULL){
//add a random to tag
belle_sip_header_to_set_tag(to,t->to_tag);
}
/*12.1 Creation of a Dialog
Dialogs are created through the generation of non-failure responses
to requests with specific methods. Within this specification, only
2xx and 101-199 responses with a To tag, where the request was
INVITE, will establish a dialog.*/
if (dialog && status_code>100 && status_code<300){
belle_sip_response_fill_for_dialog(resp,base->request);
}
}
if (BELLE_SIP_OBJECT_VPTR(t,belle_sip_server_transaction_t)->send_new_response(t,resp)==0){
if (base->last_response)
belle_sip_object_unref(base->last_response);
base->last_response=resp;
}
if (dialog)
belle_sip_dialog_update(dialog,BELLE_SIP_TRANSACTION(t),TRUE);
}
int belle_sip_client_transaction_send_request_to(belle_sip_client_transaction_t *t,belle_sip_uri_t* outbound_proxy) {
belle_sip_channel_t *chan;
belle_sip_provider_t *prov=t->base.provider;
belle_sip_dialog_t *dialog=t->base.dialog;
belle_sip_request_t *req=t->base.request;
int result=-1;
if (t->base.state!=BELLE_SIP_TRANSACTION_INIT){
belle_sip_error("belle_sip_client_transaction_send_request: bad state.");
return -1;
}
/*check uris components compliance*/
if (!belle_sip_request_check_uris_components(t->base.request)) {
belle_sip_error("belle_sip_client_transaction_send_request: bad request for transaction [%p]",t);
return -1;
}
/*store preset route for future use by refresher*/
if (outbound_proxy){
t->preset_route=outbound_proxy;
belle_sip_object_ref(t->preset_route);
}
if (t->base.sent_by_dialog_queue){
/*it can be sent immediately, so update the request with latest cseq and route_set */
/*update route and contact just in case they changed*/
belle_sip_dialog_update_request(dialog,req);
} else if (t->base.request->dialog_queued){
/*this request was created by belle_sip_dialog_create_queued_request().*/
if (belle_sip_dialog_request_pending(dialog) || dialog->queued_ct!=NULL){
/*it cannot be sent immediately, queue the transaction into dialog*/
belle_sip_message("belle_sip_client_transaction_send_request(): transaction [%p], cannot send request now because dialog is busy"
" or other transactions are queued, so queuing into dialog.",t);
belle_sip_dialog_queue_client_transaction(dialog,t);
return 0;
}
belle_sip_dialog_update_request(dialog,req);
}
if (dialog){
belle_sip_dialog_update(dialog,(belle_sip_transaction_t*)t,BELLE_SIP_OBJECT_IS_INSTANCE_OF(t,belle_sip_server_transaction_t));
}
if (!t->next_hop) {
if (t->preset_route) {
t->next_hop=belle_sip_hop_new_from_uri(t->preset_route);
} else {
t->next_hop = belle_sip_stack_get_next_hop(prov->stack,t->base.request);
}
belle_sip_object_ref(t->next_hop);
} else {
/*next hop already preset, probably in case of CANCEL*/
}
belle_sip_provider_add_client_transaction(t->base.provider,t); /*add it in any case*/
chan=belle_sip_provider_get_channel(prov,t->next_hop);
if (chan){
belle_sip_object_ref(chan);
belle_sip_channel_add_listener(chan,BELLE_SIP_CHANNEL_LISTENER(t));
t->base.channel=chan;
if (belle_sip_channel_get_state(chan)==BELLE_SIP_CHANNEL_INIT){
belle_sip_message("belle_sip_client_transaction_send_request(): waiting channel to be ready");
belle_sip_channel_prepare(chan);
/*the channel will notify us when it is ready*/
} else if (belle_sip_channel_get_state(chan)==BELLE_SIP_CHANNEL_READY){
/*otherwise we can send immediately*/
BELLE_SIP_OBJECT_VPTR(t,belle_sip_client_transaction_t)->send_request(t);
}
result=0;
}else {
belle_sip_error("belle_sip_client_transaction_send_request(): no channel available");
belle_sip_transaction_terminate(BELLE_SIP_TRANSACTION(t));
result=-1;
}
return result;
}
static void on_channel_destroyed(belle_http_channel_context_t *obj, belle_sip_channel_t *chan_being_destroyed){
belle_sip_channel_remove_listener(chan_being_destroyed,BELLE_SIP_CHANNEL_LISTENER(obj));
belle_sip_object_unref(obj);
}
