void set_or_update_dialog(SalOp* op, belle_sip_dialog_t* dialog) {
/*check if dialog has changed*/
if (dialog && dialog != op->dialog) {
ms_message("Dialog set from [%p] to [%p] for op [%p]",op->dialog,dialog,op);
/*fixme, shouldn't we cancel previous dialog*/
if (op->dialog) {
belle_sip_dialog_set_application_data(op->dialog,NULL);
belle_sip_object_unref(op->dialog);
sal_op_unref(op);
}
op->dialog=dialog;
belle_sip_dialog_set_application_data(op->dialog,op);
sal_op_ref(op);
belle_sip_object_ref(op->dialog);
}
}
static void presence_refresher_listener(belle_sip_refresher_t* refresher, void* user_pointer, unsigned int status_code, const char* reason_phrase){
SalOp* op = (SalOp*)user_pointer;
switch(status_code){
case 481: {
ms_message("The server or remote ua lost the SUBSCRIBE dialog context. Let's restart a new one.");
belle_sip_refresher_stop(op->refresher);
if (op->dialog) { /*delete previous dialog if any*/
belle_sip_dialog_set_application_data(op->dialog,NULL);
belle_sip_object_unref(op->dialog);
op->dialog=NULL;
}
if (sal_op_get_contact_address(op)) {
/*contact is also probably not good*/
SalAddress* contact=sal_address_clone(sal_op_get_contact_address(op));
sal_address_set_port(contact,-1);
sal_address_set_domain(contact,NULL);
sal_op_set_contact_address(op,contact);
sal_address_destroy(contact);
}
sal_subscribe_presence(op,NULL,NULL,-1);
break;
}
}
}
static void presence_process_request_event(void *op_base, const belle_sip_request_event_t *event) {
SalOp* op = (SalOp*)op_base;
belle_sip_server_transaction_t* server_transaction = belle_sip_provider_create_server_transaction(op->base.root->prov,belle_sip_request_event_get_request(event));
belle_sip_request_t* req = belle_sip_request_event_get_request(event);
belle_sip_dialog_state_t dialog_state;
belle_sip_header_expires_t* expires = belle_sip_message_get_header_by_type(req,belle_sip_header_expires_t);
belle_sip_response_t* resp;
const char *method=belle_sip_request_get_method(req);
belle_sip_object_ref(server_transaction);
if (op->pending_server_trans) belle_sip_object_unref(op->pending_server_trans);
op->pending_server_trans=server_transaction;
if (!op->dialog) {
if (strcmp(method,"SUBSCRIBE")==0){
op->dialog=belle_sip_provider_create_dialog(op->base.root->prov,BELLE_SIP_TRANSACTION(server_transaction));
belle_sip_dialog_set_application_data(op->dialog,op);
sal_op_ref(op);
ms_message("new incoming subscription from [%s] to [%s]",sal_op_get_from(op),sal_op_get_to(op));
}else{ /* this is a NOTIFY */
ms_message("Receiving out of dialog notify");
handle_notify(op,req);
return;
}
}
dialog_state=belle_sip_dialog_get_state(op->dialog);
switch(dialog_state) {
case BELLE_SIP_DIALOG_NULL: {
op->base.root->callbacks.subscribe_presence_received(op,sal_op_get_from(op));
break;
}
case BELLE_SIP_DIALOG_EARLY:
ms_error("unexpected method [%s] for dialog [%p] in state BELLE_SIP_DIALOG_EARLY ",method,op->dialog);
break;
case BELLE_SIP_DIALOG_CONFIRMED:
if (strcmp("NOTIFY",method)==0) {
handle_notify(op,req);
} else if (strcmp("SUBSCRIBE",method)==0) {
/*either a refresh or an unsubscribe*/
if (expires && belle_sip_header_expires_get_expires(expires)>0) {
op->base.root->callbacks.subscribe_presence_received(op,sal_op_get_from(op));
} else if(expires) {
ms_message("Unsubscribe received from [%s]",sal_op_get_from(op));
resp=sal_op_create_response_from_request(op,req,200);
belle_sip_server_transaction_send_response(server_transaction,resp);
}
}
break;
default:
ms_error("unexpected dialog state [%s]",belle_sip_dialog_state_to_string(dialog_state));
break;
}
}
void belle_sip_client_transaction_notify_response(belle_sip_client_transaction_t *t, belle_sip_response_t *resp){
belle_sip_transaction_t *base=(belle_sip_transaction_t*)t;
belle_sip_request_t* req = belle_sip_transaction_get_request(BELLE_SIP_TRANSACTION(t));
const char* method = belle_sip_request_get_method(req);
belle_sip_response_event_t event;
belle_sip_dialog_t *dialog=base->dialog;
int status_code = belle_sip_response_get_status_code(resp);
if (base->last_response)
belle_sip_object_unref(base->last_response);
base->last_response=(belle_sip_response_t*)belle_sip_object_ref(resp);
if (dialog){
if (status_code>=200 && status_code<300
&& strcmp(method,"INVITE")==0
&& (dialog->state==BELLE_SIP_DIALOG_EARLY || dialog->state==BELLE_SIP_DIALOG_CONFIRMED)){
/*make sure this response matches the current dialog, or creates a new one*/
if (!belle_sip_dialog_match(dialog,(belle_sip_message_t*)resp,FALSE)){
dialog=belle_sip_provider_create_dialog_internal(t->base.provider,BELLE_SIP_TRANSACTION(t),FALSE);/*belle_sip_dialog_new(base);*/
if (dialog){
/*copy userdata to avoid application from being lost*/
belle_sip_dialog_set_application_data(dialog,belle_sip_dialog_get_application_data(base->dialog));
belle_sip_message("Handling response creating a new dialog !");
}
}
}
} else if (should_dialog_be_created(t,resp)) {
dialog=belle_sip_provider_create_dialog_internal(t->base.provider,BELLE_SIP_TRANSACTION(t),FALSE);
}
if (dialog && belle_sip_dialog_update(dialog,BELLE_SIP_TRANSACTION(t),FALSE)) {
/* retransmition, just return*/
belle_sip_message("[%p] is a 200 ok retransmition on dialog [%p], skiping",resp,dialog);
return;
}
event.source=(belle_sip_object_t*)base->provider;
event.client_transaction=t;
event.dialog=dialog;
event.response=(belle_sip_response_t*)resp;
BELLE_SIP_PROVIDER_INVOKE_LISTENERS_FOR_TRANSACTION(((belle_sip_transaction_t*)t),process_response_event,&event);
/*check that 200Ok for INVITEs have been acknowledged by listener*/
if (dialog && strcmp(method,"INVITE")==0)
belle_sip_dialog_check_ack_sent(dialog);
}
static belle_sip_dialog_t *link_op_with_dialog(SalOp *op, belle_sip_dialog_t* dialog){
belle_sip_dialog_set_application_data(dialog,sal_op_ref(op));
belle_sip_object_ref(dialog);
return dialog;
}
static void unlink_op_with_dialog(SalOp *op, belle_sip_dialog_t* dialog){
belle_sip_dialog_set_application_data(dialog,NULL);
sal_op_unref(op);
belle_sip_object_unref(dialog);
}
