int sal_op_send_and_create_refresher(SalOp* op,belle_sip_request_t* req, int expires,belle_sip_refresher_listener_t listener ) {
if (sal_op_send_request_with_expires(op,req,expires)==0) {
if (op->refresher) {
belle_sip_refresher_stop(op->refresher);
belle_sip_object_unref(op->refresher);
}
if ((op->refresher = belle_sip_client_transaction_create_refresher(op->pending_client_trans))) {
/*since refresher acquires the transaction, we should remove our context from the transaction, because we won't be notified
* that it is terminated anymore.*/
sal_op_unref(op);/*loose the reference that was given to the transaction when creating it*/
/* Note that the refresher will replace our data with belle_sip_transaction_set_application_data().
Something in the design is not very good here, it makes things complicated to the belle-sip user.
Possible ideas to improve things: refresher shall not use belle_sip_transaction_set_application_data() internally, refresher should let the first transaction
notify the user as a normal transaction*/
belle_sip_refresher_set_listener(op->refresher,listener,op);
belle_sip_refresher_set_retry_after(op->refresher,op->base.root->refresher_retry_after);
belle_sip_refresher_set_realm(op->refresher,op->base.realm);
belle_sip_refresher_enable_manual_mode(op->refresher,op->manual_refresher);
return 0;
} else {
return -1;
}
}
return -1;
}
static void presence_response_event(void *op_base, const belle_sip_response_event_t *event){
SalOp* op = (SalOp*)op_base;
belle_sip_dialog_state_t dialog_state;
belle_sip_client_transaction_t* client_transaction = belle_sip_response_event_get_client_transaction(event);
belle_sip_response_t* response=belle_sip_response_event_get_response(event);
belle_sip_request_t* request=belle_sip_transaction_get_request(BELLE_SIP_TRANSACTION(client_transaction));
int code = belle_sip_response_get_status_code(response);
belle_sip_header_expires_t* expires;
sal_op_set_error_info_from_response(op,response);
if (code>=300) {
ms_message("subscription to [%s] rejected",sal_op_get_to(op));
op->base.root->callbacks.notify_presence(op,SalSubscribeTerminated, NULL,NULL); /*NULL = offline*/
return;
}
set_or_update_dialog(op_base,belle_sip_response_event_get_dialog(event));
if (!op->dialog) {
ms_message("presence op [%p] receive out of dialog answer [%i]",op,code);
return;
}
dialog_state=belle_sip_dialog_get_state(op->dialog);
switch(dialog_state) {
case BELLE_SIP_DIALOG_NULL:
case BELLE_SIP_DIALOG_EARLY: {
ms_error("presence op [%p] receive an unexpected answer [%i]",op,code);
break;
}
case BELLE_SIP_DIALOG_CONFIRMED: {
if (strcmp("SUBSCRIBE",belle_sip_request_get_method(request))==0) {
expires=belle_sip_message_get_header_by_type(request,belle_sip_header_expires_t);
if(op->refresher) {
belle_sip_refresher_stop(op->refresher);
belle_sip_object_unref(op->refresher);
op->refresher=NULL;
}
if (expires>0){
op->refresher=belle_sip_client_transaction_create_refresher(client_transaction);
belle_sip_refresher_set_listener(op->refresher,presence_refresher_listener,op);
belle_sip_refresher_set_realm(op->refresher,op->base.realm);
}
}
break;
}
case BELLE_SIP_DIALOG_TERMINATED:
if (op->refresher) {
belle_sip_refresher_stop(op->refresher);
belle_sip_object_unref(op->refresher);
op->refresher=NULL;
}
break;
default: {
ms_error("presence op [%p] receive answer [%i] not implemented",op,code);
}
/* no break */
}
}
