static void process_timeout(void *user_ctx, const belle_sip_timeout_event_t *event) { belle_sip_client_transaction_t* client_transaction = belle_sip_timeout_event_get_client_transaction(event); SalOp* op = (SalOp*)belle_sip_transaction_get_application_data(BELLE_SIP_TRANSACTION(client_transaction)); if (op && op->callbacks.process_timeout) { op->callbacks.process_timeout(op,event); } else { ms_error("Unhandled event timeout [%p]",event); } }
static void process_io_error(void *user_ctx, const belle_sip_io_error_event_t *event){ belle_sip_client_transaction_t*client_transaction; SalOp* op; if (BELLE_SIP_OBJECT_IS_INSTANCE_OF(belle_sip_io_error_event_get_source(event),belle_sip_client_transaction_t)) { client_transaction=BELLE_SIP_CLIENT_TRANSACTION(belle_sip_io_error_event_get_source(event)); op = (SalOp*)belle_sip_transaction_get_application_data(BELLE_SIP_TRANSACTION(client_transaction)); if (op->callbacks.process_io_error) { op->callbacks.process_io_error(op,event); } } else { /*ms_error("sal process_io_error not implemented yet for non transaction");*/ /*nop, because already handle at transaction layer*/ } }
static void process_transaction_terminated(void *user_ctx, const belle_sip_transaction_terminated_event_t *event) { belle_sip_client_transaction_t* client_transaction = belle_sip_transaction_terminated_event_get_client_transaction(event); belle_sip_server_transaction_t* server_transaction = belle_sip_transaction_terminated_event_get_server_transaction(event); belle_sip_transaction_t* trans; SalOp* op; if(client_transaction) trans=BELLE_SIP_TRANSACTION(client_transaction); else trans=BELLE_SIP_TRANSACTION(server_transaction); op = (SalOp*)belle_sip_transaction_get_application_data(trans); if (op && op->callbacks && op->callbacks->process_transaction_terminated) { op->callbacks->process_transaction_terminated(op,event); } else { ms_message("Unhandled transaction terminated [%p]",trans); } if (op) sal_op_unref(op); /*because every transaction ref op*/ }
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); } } }
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); } } }
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"); } }