static void check_uri_and_headers(belle_sip_message_t* message) {
	if (belle_sip_message_is_request(message)) {
		CU_ASSERT_TRUE(belle_sip_request_get_uri(BELLE_SIP_REQUEST(message))|| belle_sip_request_get_absolute_uri(BELLE_SIP_REQUEST(message)) );

		CU_ASSERT_PTR_NOT_NULL(belle_sip_message_get_header(message,"Max-Forwards"));
		CU_ASSERT_PTR_NOT_NULL(BELLE_SIP_HEADER_MAX_FORWARDS(belle_sip_message_get_header(message,"Max-Forwards")));

		CU_ASSERT_PTR_NOT_NULL(belle_sip_message_get_header(message,"User-Agent"));
		CU_ASSERT_PTR_NOT_NULL(BELLE_SIP_HEADER_USER_AGENT(belle_sip_message_get_header(message,"User-Agent")));
	}
	CU_ASSERT_PTR_NOT_NULL(belle_sip_message_get_header(message,"From"));
	CU_ASSERT_PTR_NOT_NULL(BELLE_SIP_HEADER_FROM(belle_sip_message_get_header(message,"From")));

	CU_ASSERT_PTR_NOT_NULL(belle_sip_message_get_header(message,"To"));
	CU_ASSERT_PTR_NOT_NULL(BELLE_SIP_HEADER_TO(belle_sip_message_get_header(message,"To")));

	CU_ASSERT_PTR_NOT_NULL(belle_sip_message_get_header(message,"CSeq"));
	CU_ASSERT_PTR_NOT_NULL(BELLE_SIP_HEADER_CSEQ(belle_sip_message_get_header(message,"CSeq")));

	CU_ASSERT_PTR_NOT_NULL(belle_sip_message_get_header(message,"Via"));
	CU_ASSERT_PTR_NOT_NULL(BELLE_SIP_HEADER_VIA(belle_sip_message_get_header(message,"Via")));

	CU_ASSERT_PTR_NOT_NULL(belle_sip_message_get_header(message,"Call-ID"));
	CU_ASSERT_PTR_NOT_NULL(BELLE_SIP_HEADER_CALL_ID(belle_sip_message_get_header(message,"Call-ID")));


	CU_ASSERT_PTR_NOT_NULL(belle_sip_message_get_header(message,"Content-Length"));
	CU_ASSERT_PTR_NOT_NULL(BELLE_SIP_HEADER_CONTENT_LENGTH(belle_sip_message_get_header(message,"Content-Length")));





}
Example #2
0
static int _sal_op_send_request_with_contact(SalOp* op, belle_sip_request_t* request, bool_t add_contact) {
	belle_sip_client_transaction_t* client_transaction;
	belle_sip_provider_t* prov=op->base.root->prov;
	belle_sip_uri_t* outbound_proxy=NULL;
	belle_sip_header_contact_t* contact;
	int result =-1;
	belle_sip_uri_t *next_hop_uri=NULL;

	if (add_contact && !belle_sip_message_get_header_by_type(BELLE_SIP_MESSAGE(request),belle_sip_header_contact_t)) {
		contact = sal_op_create_contact(op);
		belle_sip_message_set_header(BELLE_SIP_MESSAGE(request),BELLE_SIP_HEADER(contact));
	} /*keep existing*/

	_sal_op_add_custom_headers(op, (belle_sip_message_t*)request);

	if (!op->dialog || belle_sip_dialog_get_state(op->dialog) == BELLE_SIP_DIALOG_NULL) {
		/*don't put route header if  dialog is in confirmed state*/
		const MSList *elem=sal_op_get_route_addresses(op);
		const char *transport;
		const char *method=belle_sip_request_get_method(request);
		belle_sip_listening_point_t *udplp=belle_sip_provider_get_listening_point(prov,"UDP");

		if (elem) {
			outbound_proxy=belle_sip_header_address_get_uri((belle_sip_header_address_t*)elem->data);
			next_hop_uri=outbound_proxy;
		}else{
			next_hop_uri=(belle_sip_uri_t*)belle_sip_object_clone((belle_sip_object_t*)belle_sip_request_get_uri(request));
		}
		transport=belle_sip_uri_get_transport_param(next_hop_uri);
		if (transport==NULL){
			/*compatibility mode: by default it should be udp as not explicitely set and if no udp listening point is available, then use
			 * the first available transport*/
			if (!belle_sip_uri_is_secure(next_hop_uri)){
				if (udplp==NULL){
					if (belle_sip_provider_get_listening_point(prov,"TCP")!=NULL){
						transport="tcp";
					}else if (belle_sip_provider_get_listening_point(prov,"TLS")!=NULL ){
						transport="tls";
					}
				}
				if (transport){
					belle_sip_message("Transport is not specified, using %s because UDP is not available.",transport);
					belle_sip_uri_set_transport_param(next_hop_uri,transport);
				}
			}
		}else{
#ifdef TUNNEL_ENABLED
			if (udplp && BELLE_SIP_OBJECT_IS_INSTANCE_OF(udplp,belle_sip_tunnel_listening_point_t)){
				/* our tunnel mode only supports UDP. Force transport to be set to UDP */
				belle_sip_uri_set_transport_param(next_hop_uri,"udp");
			}
#endif
		}
		if ((strcmp(method,"REGISTER")==0 || strcmp(method,"SUBSCRIBE")==0) && transport &&
			(strcasecmp(transport,"TCP")==0 || strcasecmp(transport,"TLS")==0)){
			/*RFC 5923: add 'alias' parameter to tell the server that we want it to keep the connection for future requests*/
			belle_sip_header_via_t *via=belle_sip_message_get_header_by_type(BELLE_SIP_MESSAGE(request),belle_sip_header_via_t);
			belle_sip_parameters_set_parameter(BELLE_SIP_PARAMETERS(via),"alias",NULL);
		}
	}

	client_transaction = belle_sip_provider_create_client_transaction(prov,request);
	belle_sip_transaction_set_application_data(BELLE_SIP_TRANSACTION(client_transaction),sal_op_ref(op));
	if (op->pending_client_trans) belle_sip_object_unref(op->pending_client_trans);
	op->pending_client_trans=client_transaction; /*update pending inv for being able to cancel*/
	belle_sip_object_ref(op->pending_client_trans);

	if (belle_sip_message_get_header_by_type(BELLE_SIP_MESSAGE(request),belle_sip_header_user_agent_t)==NULL)
		belle_sip_message_add_header(BELLE_SIP_MESSAGE(request),BELLE_SIP_HEADER(op->base.root->user_agent));

	if (!belle_sip_message_get_header(BELLE_SIP_MESSAGE(request),BELLE_SIP_AUTHORIZATION)
		&& !belle_sip_message_get_header(BELLE_SIP_MESSAGE(request),BELLE_SIP_PROXY_AUTHORIZATION)) {
		/*hmm just in case we already have authentication param in cache*/
		belle_sip_provider_add_authorization(op->base.root->prov,request,NULL,NULL,NULL,op->base.realm);
	}
	result = belle_sip_client_transaction_send_request_to(client_transaction,next_hop_uri/*might be null*/);

	/*update call id if not set yet for this OP*/
	if (result == 0 && !op->base.call_id) {
		op->base.call_id=ms_strdup(belle_sip_header_call_id_get_call_id(BELLE_SIP_HEADER_CALL_ID(belle_sip_message_get_header_by_type(BELLE_SIP_MESSAGE(request), belle_sip_header_call_id_t))));
	}

	return result;

}
Example #3
0
static void process_response_event(void *user_ctx, const belle_sip_response_event_t *event){
	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);
	int response_code = belle_sip_response_get_status_code(response);
	if (!client_transaction) {
		ms_warning("Discarding stateless response [%i]",response_code);
		return;
	} else {
		SalOp* op = (SalOp*)belle_sip_transaction_get_application_data(BELLE_SIP_TRANSACTION(client_transaction));
		belle_sip_request_t* request=belle_sip_transaction_get_request(BELLE_SIP_TRANSACTION(client_transaction));
		belle_sip_header_contact_t* original_contact;
		belle_sip_header_address_t* contact_address=NULL;
		belle_sip_header_via_t* via_header;
		belle_sip_uri_t* contact_uri;
		unsigned int contact_port;
		const char* received;
		int rport;
		bool_t contact_updated=FALSE;
		char* new_contact;

		if (op->state == SalOpStateTerminated) {
			belle_sip_message("Op is terminated, nothing to do with this [%i]",response_code);
			return;
		}
		if (!op->base.remote_ua) {
			sal_op_set_remote_ua(op,BELLE_SIP_MESSAGE(response));
		}
		if (!op->base.call_id) {
			op->base.call_id=ms_strdup(belle_sip_header_call_id_get_call_id(BELLE_SIP_HEADER_CALL_ID(belle_sip_message_get_header_by_type(BELLE_SIP_MESSAGE(response), belle_sip_header_call_id_t))));
		}

		sal_op_assign_recv_headers(op,(belle_sip_message_t*)response);
		
		if (op->callbacks.process_response_event) {

			if (op->base.root->nat_helper_enabled) {
				/*Fix contact if needed*/
				via_header= (belle_sip_header_via_t*)belle_sip_message_get_header(BELLE_SIP_MESSAGE(response),BELLE_SIP_VIA);
				received = belle_sip_header_via_get_received(via_header);
				rport = belle_sip_header_via_get_rport(via_header);
				if ((original_contact=belle_sip_message_get_header_by_type(request,belle_sip_header_contact_t))) {
					/*update contact with sent values in any cases*/
					contact_address=belle_sip_header_address_create(NULL,belle_sip_header_address_get_uri(BELLE_SIP_HEADER_ADDRESS(original_contact)));
					sal_op_set_contact_address(op,(const SalAddress *)contact_address);
					belle_sip_object_unref(contact_address);
				}
				if (sal_op_get_contact(op)){
					if (received!=NULL || rport>0) {
						contact_address = BELLE_SIP_HEADER_ADDRESS(sal_address_clone(sal_op_get_contact_address(op)));
						contact_uri=belle_sip_header_address_get_uri(BELLE_SIP_HEADER_ADDRESS(contact_address));
						if (received && strcmp(received,belle_sip_uri_get_host(contact_uri))!=0) {
							/*need to update host*/
							belle_sip_uri_set_host(contact_uri,received);
							contact_updated=TRUE;
						}
						contact_port =  belle_sip_uri_get_port(contact_uri);
						if (rport>0 && rport!=contact_port && (contact_port+rport)!=5060) {
							/*need to update port*/
							belle_sip_uri_set_port(contact_uri,rport);
							contact_updated=TRUE;
						}

						/*try to fix transport if needed (very unlikely)*/
						if (strcasecmp(belle_sip_header_via_get_transport(via_header),"UDP")!=0) {
							if (!belle_sip_uri_get_transport_param(contact_uri)
									||strcasecmp(belle_sip_uri_get_transport_param(contact_uri),belle_sip_header_via_get_transport(via_header))!=0) {
								belle_sip_uri_set_transport_param(contact_uri,belle_sip_header_via_get_transport_lowercase(via_header));
								contact_updated=TRUE;
							}
						} else {
							if (belle_sip_uri_get_transport_param(contact_uri)) {
								contact_updated=TRUE;
								belle_sip_uri_set_transport_param(contact_uri,NULL);
							}
						}
						if (contact_updated) {
							char* old_contact=belle_sip_object_to_string(BELLE_SIP_OBJECT(sal_op_get_contact_address(op)));
							new_contact=belle_sip_object_to_string(BELLE_SIP_OBJECT(contact_address));
							ms_message("Updating contact from [%s] to [%s] for [%p]",old_contact,new_contact,op);
							sal_op_set_contact_address(op,(const SalAddress *)contact_address);
							belle_sip_free(new_contact);
							belle_sip_free(old_contact);
						}
						if (contact_address)belle_sip_object_unref(contact_address);
					}
				}
			}
			
			/*handle authorization*/
			switch (response_code) {
				case 200: {
					break;
				}
				case 401:
				case 407:{
					
					/*belle_sip_transaction_set_application_data(BELLE_SIP_TRANSACTION(client_transaction),NULL);*//*remove op from trans*/
					if (op->state == SalOpStateTerminating && strcmp("BYE",belle_sip_request_get_method(request))!=0) {
						/*only bye are completed*/
						belle_sip_message("Op is in state terminating, nothing else to do ");
					} else {
						if (op->pending_auth_transaction){
							belle_sip_object_unref(op->pending_auth_transaction);
							op->pending_auth_transaction=NULL;
						}
						op->pending_auth_transaction=(belle_sip_client_transaction_t*)belle_sip_object_ref(client_transaction);
						sal_process_authentication(op);
						return;
					}
				}
			}
			op->callbacks.process_response_event(op,event);
		} else {
			ms_error("Unhandled event response [%p]",event);
		}
	}

}
Example #4
0
static void process_request_event(void *sal, const belle_sip_request_event_t *event) {
	SalOp* op=NULL;
	belle_sip_request_t* req = belle_sip_request_event_get_request(event);
	belle_sip_dialog_t* dialog=belle_sip_request_event_get_dialog(event);
	belle_sip_header_address_t* origin_address;
	belle_sip_header_address_t* address;
	belle_sip_header_from_t* from_header;
	belle_sip_header_to_t* to;
	belle_sip_response_t* resp;
	belle_sip_header_t *evh;
	const char *method=belle_sip_request_get_method(req);

	from_header=belle_sip_message_get_header_by_type(BELLE_SIP_MESSAGE(req),belle_sip_header_from_t);

	if (dialog) {
		op=(SalOp*)belle_sip_dialog_get_application_data(dialog);
		if (op==NULL || op->state==SalOpStateTerminated){
			ms_warning("Receiving request for null or terminated op [%p], ignored",op);
			return;
		}
	}else if (strcmp("INVITE",method)==0) {
		op=sal_op_new((Sal*)sal);
		op->dir=SalOpDirIncoming;
		sal_op_call_fill_cbs(op);
	}else if ((strcmp("SUBSCRIBE",method)==0 || strcmp("NOTIFY",method)==0) && (evh=belle_sip_message_get_header(BELLE_SIP_MESSAGE(req),"Event"))!=NULL) {
		op=sal_op_new((Sal*)sal);
		op->dir=SalOpDirIncoming;
		if (strncmp(belle_sip_header_get_unparsed_value(evh),"presence",strlen("presence"))==0){
			sal_op_presence_fill_cbs(op);
		}else
			sal_op_subscribe_fill_cbs(op);
	}else if (strcmp("MESSAGE",method)==0) {
		op=sal_op_new((Sal*)sal);
		op->dir=SalOpDirIncoming;
		sal_op_message_fill_cbs(op);
	}else if (strcmp("OPTIONS",method)==0) {
		resp=belle_sip_response_create_from_request(req,200);
		belle_sip_provider_send_response(((Sal*)sal)->prov,resp);
		return;
	}else if (strcmp("INFO",method)==0) {
		resp=belle_sip_response_create_from_request(req,481);/*INFO out of call dialogs are not allowed*/
		belle_sip_provider_send_response(((Sal*)sal)->prov,resp);
		return;
	}else if (strcmp("BYE",method)==0) {
		resp=belle_sip_response_create_from_request(req,481);/*out of dialog BYE */
		belle_sip_provider_send_response(((Sal*)sal)->prov,resp);
		return;
	}else {
		ms_error("sal process_request_event not implemented yet for method [%s]",belle_sip_request_get_method(req));
		resp=belle_sip_response_create_from_request(req,501);
		belle_sip_provider_send_response(((Sal*)sal)->prov,resp);
		return;
	}

	if (!op->base.from_address)  {
		address=belle_sip_header_address_create(belle_sip_header_address_get_displayname(BELLE_SIP_HEADER_ADDRESS(from_header))
														,belle_sip_header_address_get_uri(BELLE_SIP_HEADER_ADDRESS(from_header)));
		sal_op_set_from_address(op,(SalAddress*)address);
		belle_sip_object_unref(address);
	}


	if (!op->base.to_address) {
		to=belle_sip_message_get_header_by_type(BELLE_SIP_MESSAGE(req),belle_sip_header_to_t);
		address=belle_sip_header_address_create(belle_sip_header_address_get_displayname(BELLE_SIP_HEADER_ADDRESS(to))
												,belle_sip_header_address_get_uri(BELLE_SIP_HEADER_ADDRESS(to)));
		sal_op_set_to_address(op,(SalAddress*)address);
		belle_sip_object_unref(address);
	}

	if (!op->base.origin) {
		/*set origin uri*/
		origin_address=belle_sip_header_address_create(NULL,belle_sip_request_extract_origin(req));
		__sal_op_set_network_origin_address(op,(SalAddress*)origin_address);
		belle_sip_object_unref(origin_address);
	}
	if (!op->base.remote_ua) {
		sal_op_set_remote_ua(op,BELLE_SIP_MESSAGE(req));
	}

	if (!op->base.call_id) {
		op->base.call_id=ms_strdup(belle_sip_header_call_id_get_call_id(BELLE_SIP_HEADER_CALL_ID(belle_sip_message_get_header_by_type(BELLE_SIP_MESSAGE(req), belle_sip_header_call_id_t))));
	}
	/*It is worth noting that proxies can (and
   will) remove this header field*/
	sal_op_set_privacy_from_message(op,(belle_sip_message_t*)req);

	sal_op_assign_recv_headers(op,(belle_sip_message_t*)req);
	if (op->callbacks.process_request_event) {
		op->callbacks.process_request_event(op,event);
	} else {
		ms_error("sal process_request_event not implemented yet");
	}

}
Example #5
0
static void process_response_event(void *user_ctx, const belle_sip_response_event_t *event){
	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);
	int response_code = belle_sip_response_get_status_code(response);

	if (!client_transaction) {
		ms_warning("Discarding stateless response [%i]",response_code);
		return;
	} else {
		SalOp* op = (SalOp*)belle_sip_transaction_get_application_data(BELLE_SIP_TRANSACTION(client_transaction));
		belle_sip_request_t* request=belle_sip_transaction_get_request(BELLE_SIP_TRANSACTION(client_transaction));
		belle_sip_header_contact_t* remote_contact = belle_sip_message_get_header_by_type(response, belle_sip_header_contact_t);

		if (op->state == SalOpStateTerminated) {
			belle_sip_message("Op is terminated, nothing to do with this [%i]",response_code);
			return;
		}
		/*do it all the time, since we can receive provisional responses from a different instance than the final one*/
		sal_op_set_remote_ua(op,BELLE_SIP_MESSAGE(response));

		if(remote_contact) {
			__sal_op_set_remote_contact(op, belle_sip_header_get_unparsed_value(BELLE_SIP_HEADER(remote_contact)));
		}

		if (!op->base.call_id) {
			op->base.call_id=ms_strdup(belle_sip_header_call_id_get_call_id(BELLE_SIP_HEADER_CALL_ID(belle_sip_message_get_header_by_type(BELLE_SIP_MESSAGE(response), belle_sip_header_call_id_t))));
		}

		sal_op_assign_recv_headers(op,(belle_sip_message_t*)response);

		if (op->callbacks && op->callbacks->process_response_event) {
			/*handle authorization*/
			switch (response_code) {
				case 200:
					break;
				case 401:
				case 407:
					if (op->state == SalOpStateTerminating && strcmp("BYE",belle_sip_request_get_method(request))!=0) {
						/*only bye are completed*/
						belle_sip_message("Op is in state terminating, nothing else to do ");
					} else {
						if (op->pending_auth_transaction){
							belle_sip_object_unref(op->pending_auth_transaction);
							op->pending_auth_transaction=NULL;
						}
						if (++op->auth_requests > 2) {
							ms_warning("Auth info cannot be found for op [%s/%s] after 2 attempts, giving up",sal_op_get_from(op)
																												,sal_op_get_to(op));
							op->base.root->callbacks.auth_failure(op,op->auth_info);
							sal_remove_pending_auth(op->base.root,op);
						} else {
							op->pending_auth_transaction=(belle_sip_client_transaction_t*)belle_sip_object_ref(client_transaction);
							sal_process_authentication(op);
							return;
						}
					}
					break;
				case 403:
					if (op->auth_info) op->base.root->callbacks.auth_failure(op,op->auth_info);
					break;
			}
			if (response_code >= 180 && response_code !=401 && response_code !=407 && response_code !=403) {
				/*not an auth request*/
				op->auth_requests=0;
			}
			op->callbacks->process_response_event(op,event);
		} else {
			ms_error("Unhandled event response [%p]",event);
		}
	}
}
Example #6
0
static void process_request_event(void *ud, const belle_sip_request_event_t *event) {
	Sal *sal=(Sal*)ud;
	SalOp* op=NULL;
	belle_sip_request_t* req = belle_sip_request_event_get_request(event);
	belle_sip_dialog_t* dialog=belle_sip_request_event_get_dialog(event);
	belle_sip_header_address_t* origin_address;
	belle_sip_header_address_t* address=NULL;
	belle_sip_header_from_t* from_header;
	belle_sip_header_to_t* to;
	belle_sip_response_t* resp;
	belle_sip_header_t *evh;
	const char *method=belle_sip_request_get_method(req);
	belle_sip_header_contact_t* remote_contact = belle_sip_message_get_header_by_type(req, belle_sip_header_contact_t);

	from_header=belle_sip_message_get_header_by_type(BELLE_SIP_MESSAGE(req),belle_sip_header_from_t);

	if (dialog) {
		op=(SalOp*)belle_sip_dialog_get_application_data(dialog);
		
		if (op == NULL  && strcmp("NOTIFY",method) == 0) {
			/*special case for Dialog created by notify mathing subscribe*/
			belle_sip_transaction_t * sub_trans = belle_sip_dialog_get_last_transaction(dialog);
			op = (SalOp*)belle_sip_transaction_get_application_data(sub_trans);
		}
		if (op==NULL || op->state==SalOpStateTerminated){
			ms_warning("Receiving request for null or terminated op [%p], ignored",op);
			return;
		}
	}else{
		/*handle the case where we are receiving a request with to tag but it is not belonging to any dialog*/
		belle_sip_header_to_t *to = belle_sip_message_get_header_by_type(req, belle_sip_header_to_t);
		if ((strcmp("INVITE",method)==0 || strcmp("NOTIFY",method)==0) && (belle_sip_header_to_get_tag(to) != NULL)) {
			ms_warning("Receiving %s with to-tag but no know dialog here. Rejecting.", method);
			resp=belle_sip_response_create_from_request(req,481);
			belle_sip_provider_send_response(sal->prov,resp);
			return;
		/* by default (eg. when a to-tag is present), out of dialog ACK are automatically
		handled in lower layers (belle-sip) but in case it misses, it will be forwarded to us */
		} else if (strcmp("ACK",method)==0 && (belle_sip_header_to_get_tag(to) == NULL)) {
			ms_warning("Receiving ACK without to-tag but no know dialog here. Ignoring");
			return;
		}

		if (strcmp("INVITE",method)==0) {
			op=sal_op_new(sal);
			op->dir=SalOpDirIncoming;
			sal_op_call_fill_cbs(op);
		}else if ((strcmp("SUBSCRIBE",method)==0 || strcmp("NOTIFY",method)==0) && (evh=belle_sip_message_get_header(BELLE_SIP_MESSAGE(req),"Event"))!=NULL) {
			op=sal_op_new(sal);
			op->dir=SalOpDirIncoming;
			if (strncmp(belle_sip_header_get_unparsed_value(evh),"presence",strlen("presence"))==0){
				sal_op_presence_fill_cbs(op);
			}else
				sal_op_subscribe_fill_cbs(op);
		}else if (strcmp("MESSAGE",method)==0) {
			op=sal_op_new(sal);
			op->dir=SalOpDirIncoming;
			sal_op_message_fill_cbs(op);
		}else if (strcmp("OPTIONS",method)==0) {
			resp=belle_sip_response_create_from_request(req,200);
			belle_sip_provider_send_response(sal->prov,resp);
			return;
		}else if (strcmp("INFO",method)==0) {
			resp=belle_sip_response_create_from_request(req,481);/*INFO out of call dialogs are not allowed*/
			belle_sip_provider_send_response(sal->prov,resp);
			return;
		}else if (strcmp("BYE",method)==0) {
			resp=belle_sip_response_create_from_request(req,481);/*out of dialog BYE */
			belle_sip_provider_send_response(sal->prov,resp);
			return;
		}else if (strcmp("CANCEL",method)==0) {
			resp=belle_sip_response_create_from_request(req,481);/*out of dialog CANCEL */
			belle_sip_provider_send_response(sal->prov,resp);
			return;
		}else if (sal->enable_test_features && strcmp("PUBLISH",method)==0) {
			resp=belle_sip_response_create_from_request(req,200);/*out of dialog PUBLISH */
			belle_sip_message_add_header((belle_sip_message_t*)resp,belle_sip_header_create("SIP-Etag","4441929FFFZQOA"));
			belle_sip_provider_send_response(sal->prov,resp);
			return;
		}else {
			ms_error("sal process_request_event not implemented yet for method [%s]",belle_sip_request_get_method(req));
			resp=belle_sip_response_create_from_request(req,405);
			belle_sip_message_add_header(BELLE_SIP_MESSAGE(resp)
										,BELLE_SIP_HEADER(belle_sip_header_allow_create("INVITE, CANCEL, ACK, BYE, SUBSCRIBE, NOTIFY, MESSAGE, OPTIONS, INFO")));
			belle_sip_provider_send_response(sal->prov,resp);
			return;
		}
	}

	if (!op->base.from_address)  {
		if (belle_sip_header_address_get_uri(BELLE_SIP_HEADER_ADDRESS(from_header)))
			address=belle_sip_header_address_create(belle_sip_header_address_get_displayname(BELLE_SIP_HEADER_ADDRESS(from_header))
					,belle_sip_header_address_get_uri(BELLE_SIP_HEADER_ADDRESS(from_header)));
		else if ((belle_sip_header_address_get_absolute_uri(BELLE_SIP_HEADER_ADDRESS(from_header))))
			address=belle_sip_header_address_create2(belle_sip_header_address_get_displayname(BELLE_SIP_HEADER_ADDRESS(from_header))
					,belle_sip_header_address_get_absolute_uri(BELLE_SIP_HEADER_ADDRESS(from_header)));
		else
			ms_error("Cannot not find from uri from request [%p]",req);
		sal_op_set_from_address(op,(SalAddress*)address);
		belle_sip_object_unref(address);
	}

	if( remote_contact ){
		__sal_op_set_remote_contact(op, belle_sip_header_get_unparsed_value(BELLE_SIP_HEADER(remote_contact)));
	}

	if (!op->base.to_address) {
		to=belle_sip_message_get_header_by_type(BELLE_SIP_MESSAGE(req),belle_sip_header_to_t);
		if (belle_sip_header_address_get_uri(BELLE_SIP_HEADER_ADDRESS(to)))
			address=belle_sip_header_address_create(belle_sip_header_address_get_displayname(BELLE_SIP_HEADER_ADDRESS(to))
					,belle_sip_header_address_get_uri(BELLE_SIP_HEADER_ADDRESS(to)));
		else if ((belle_sip_header_address_get_absolute_uri(BELLE_SIP_HEADER_ADDRESS(to))))
			address=belle_sip_header_address_create2(belle_sip_header_address_get_displayname(BELLE_SIP_HEADER_ADDRESS(to))
					,belle_sip_header_address_get_absolute_uri(BELLE_SIP_HEADER_ADDRESS(to)));
		else
			ms_error("Cannot not find to uri from request [%p]",req);

		sal_op_set_to_address(op,(SalAddress*)address);
		belle_sip_object_unref(address);
	}

	if (!op->base.origin) {
		/*set origin uri*/
		origin_address=belle_sip_header_address_create(NULL,belle_sip_request_extract_origin(req));
		__sal_op_set_network_origin_address(op,(SalAddress*)origin_address);
		belle_sip_object_unref(origin_address);
	}
	if (!op->base.remote_ua) {
		sal_op_set_remote_ua(op,BELLE_SIP_MESSAGE(req));
	}

	if (!op->base.call_id) {
		op->base.call_id=ms_strdup(belle_sip_header_call_id_get_call_id(BELLE_SIP_HEADER_CALL_ID(belle_sip_message_get_header_by_type(BELLE_SIP_MESSAGE(req), belle_sip_header_call_id_t))));
	}
	/*It is worth noting that proxies can (and
   will) remove this header field*/
	sal_op_set_privacy_from_message(op,(belle_sip_message_t*)req);

	sal_op_assign_recv_headers(op,(belle_sip_message_t*)req);
	if (op->callbacks && op->callbacks->process_request_event) {
		op->callbacks->process_request_event(op,event);
	} else {
		ms_error("sal process_request_event not implemented yet");
	}

}