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){ belle_sip_dialog_t *dialog = belle_sip_provider_create_dialog(op->base.root->prov,BELLE_SIP_TRANSACTION(server_transaction)); set_or_update_dialog(op, dialog); 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, belle_sip_request_event_get_dialog(event)); 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, belle_sip_request_event_get_dialog(event)); } 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{ 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; } }
static void callee_process_request_event(void *user_ctx, const belle_sip_request_event_t *event) { belle_sip_dialog_t* dialog; belle_sip_response_t* ringing_response; belle_sip_header_content_type_t* content_type ; belle_sip_header_content_length_t* content_length; belle_sip_server_transaction_t* server_transaction = belle_sip_request_event_get_server_transaction(event); belle_sip_header_to_t* to=belle_sip_message_get_header_by_type(belle_sip_request_event_get_request(event),belle_sip_header_to_t); const char* method; if (!belle_sip_uri_equals(BELLE_SIP_URI(user_ctx),belle_sip_header_address_get_uri(BELLE_SIP_HEADER_ADDRESS(to)))) { belle_sip_message("Message [%p] not for callee, skipping",belle_sip_request_event_get_request(event)); return; /*not for the callee*/ } method = belle_sip_request_get_method(belle_sip_request_event_get_request(event)); if (!server_transaction && strcmp(method,"ACK")!=0) { server_transaction= belle_sip_provider_create_server_transaction(prov,belle_sip_request_event_get_request(event)); } belle_sip_message("callee_process_request_event received [%s] message",method); dialog = belle_sip_request_event_get_dialog(event); if (!dialog ) { BC_ASSERT_STRING_EQUAL_FATAL("INVITE",method); dialog=belle_sip_provider_create_dialog(prov,BELLE_SIP_TRANSACTION(server_transaction)); callee_dialog=dialog; inserv_transaction=server_transaction; } if (belle_sip_dialog_get_state(dialog) == BELLE_SIP_DIALOG_NULL) { ringing_response = belle_sip_response_create_from_request(belle_sip_transaction_get_request(BELLE_SIP_TRANSACTION(server_transaction)),180); /*prepare 200ok*/ ok_response = belle_sip_response_create_from_request(belle_sip_transaction_get_request(BELLE_SIP_TRANSACTION(server_transaction)),200); content_length= belle_sip_header_content_length_create(strlen(sdp)); content_type = belle_sip_header_content_type_create("application","sdp"); belle_sip_message_add_header(BELLE_SIP_MESSAGE(ok_response),BELLE_SIP_HEADER(content_type)); belle_sip_message_add_header(BELLE_SIP_MESSAGE(ok_response),BELLE_SIP_HEADER(content_length)); belle_sip_message_set_body(BELLE_SIP_MESSAGE(ok_response),sdp,strlen(sdp)); belle_sip_object_ref(ok_response); /*only send ringing*/ belle_sip_server_transaction_send_response(server_transaction,ringing_response); } else if (belle_sip_dialog_get_state(dialog) == BELLE_SIP_DIALOG_CONFIRMED) { /*time to send bye*/ belle_sip_client_transaction_t* client_transaction = belle_sip_provider_create_client_transaction(prov,belle_sip_dialog_create_request(dialog,"BYE")); belle_sip_client_transaction_send_request(client_transaction); } else { belle_sip_warning("Unexpected state [%s] for dialog [%p]",belle_sip_dialog_state_to_string(belle_sip_dialog_get_state(dialog)),dialog ); } }
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"); } }
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"); } }
static void server_process_request_event(void *obj, const belle_sip_request_event_t *event){ endpoint_t* endpoint = (endpoint_t*)obj; belle_sip_server_transaction_t* server_transaction =belle_sip_provider_create_server_transaction(endpoint->provider,belle_sip_request_event_get_request(event)); belle_sip_request_t* req = belle_sip_transaction_get_request(BELLE_SIP_TRANSACTION(server_transaction)); belle_sip_response_t* resp; belle_sip_header_contact_t* contact; belle_sip_header_expires_t* expires; belle_sip_header_authorization_t* authorization; belle_sip_header_via_t* via; const char* raw_authenticate_digest = "WWW-Authenticate: Digest " "algorithm=MD5, realm=\"" SIPDOMAIN "\", opaque=\"1bc7f9097684320\""; belle_sip_header_www_authenticate_t* www_authenticate=NULL; const char* auth_uri; const char* qop; unsigned char auth_ok=0; char local_resp[33]; belle_sip_message("caller_process_request_event received [%s] message",belle_sip_request_get_method(belle_sip_request_event_get_request(event))); switch (endpoint->auth) { case none: { auth_ok=1; break; } case digest_auth: case digest: { if ((authorization=belle_sip_message_get_header_by_type(req,belle_sip_header_authorization_t)) != NULL){ qop=belle_sip_header_authorization_get_qop(authorization); if (qop && strcmp(qop,"auth")==0) { compute_response_auth_qop( belle_sip_header_authorization_get_username(authorization) ,belle_sip_header_authorization_get_realm(authorization) ,PASSWD ,endpoint->nonce ,endpoint->nonce_count ,belle_sip_header_authorization_get_cnonce(authorization) ,belle_sip_header_authorization_get_qop(authorization) ,belle_sip_request_get_method(req) ,auth_uri=belle_sip_uri_to_string(belle_sip_header_authorization_get_uri(authorization)) ,local_resp); } else { /*digest*/ compute_response(belle_sip_header_authorization_get_username(authorization) ,belle_sip_header_authorization_get_realm(authorization) ,PASSWD ,endpoint->nonce ,belle_sip_request_get_method(req) ,auth_uri=belle_sip_uri_to_string(belle_sip_header_authorization_get_uri(authorization)) ,local_resp); } belle_sip_free((void*)auth_uri); auth_ok=strcmp(belle_sip_header_authorization_get_response(authorization),local_resp)==0; } if (auth_ok && endpoint->nonce_count<MAX_NC_COUNT ) {/*revoke nonce after MAX_NC_COUNT uses*/ if (endpoint->auth == digest ) { sprintf(endpoint->nonce,"%p",authorization); //*change the nonce for next auth*/ } else { endpoint->nonce_count++; } } else { auth_ok=0; www_authenticate=belle_sip_header_www_authenticate_parse(raw_authenticate_digest); sprintf(endpoint->nonce,"%p",authorization); //*change the nonce for next auth*/ belle_sip_header_www_authenticate_set_nonce(www_authenticate,endpoint->nonce); if (endpoint->auth == digest_auth) { belle_sip_header_www_authenticate_add_qop(www_authenticate,"auth"); if (endpoint->nonce_count>=MAX_NC_COUNT) { belle_sip_header_www_authenticate_set_stale(www_authenticate,1); endpoint->nonce_count=1; } } } } break; default: break; } if (auth_ok) { resp=belle_sip_response_create_from_request(belle_sip_request_event_get_request(event),200); if (!endpoint->expire_in_contact) { belle_sip_message_add_header(BELLE_SIP_MESSAGE(resp),BELLE_SIP_HEADER(expires=belle_sip_message_get_header_by_type(req,belle_sip_header_expires_t))); } if (strcmp(belle_sip_request_get_method(req),"REGISTER")==0) { contact=belle_sip_message_get_header_by_type(req,belle_sip_header_contact_t); } else { contact=belle_sip_header_contact_new(); } if(endpoint->unreconizable_contact) { /*put an unexpected address*/ belle_sip_uri_set_host(belle_sip_header_address_get_uri(BELLE_SIP_HEADER_ADDRESS(contact)),"nimportequoi.com"); } belle_sip_message_add_header(BELLE_SIP_MESSAGE(resp),BELLE_SIP_HEADER(contact)); if (strcmp(belle_sip_request_get_method(req),"PUBLISH")==0) { belle_sip_header_t* sip_if_match=belle_sip_message_get_header(BELLE_SIP_MESSAGE(resp),"SIP-If-Match"); if (sip_if_match) { BC_ASSERT_STRING_EQUAL(belle_sip_header_extension_get_value(BELLE_SIP_HEADER_EXTENSION(sip_if_match)),"blablietag"); } /*check for body*/ BC_ASSERT_PTR_NOT_NULL(belle_sip_message_get_body(BELLE_SIP_MESSAGE(req))); if (belle_sip_message_get_body(BELLE_SIP_MESSAGE(req))) { BC_ASSERT_STRING_EQUAL(belle_sip_message_get_body(BELLE_SIP_MESSAGE(req)),publish_body); } BC_ASSERT_PTR_NOT_NULL(belle_sip_message_get_header_by_type(req,belle_sip_header_content_type_t)); BC_ASSERT_PTR_NOT_NULL(belle_sip_message_get_header_by_type(req,belle_sip_header_content_length_t)); belle_sip_message_add_header(BELLE_SIP_MESSAGE(resp),belle_sip_header_create("SIP-ETag","blablietag")); } if (strcmp(belle_sip_request_get_method(req),"SUBSCRIBE")==0){ if (belle_sip_request_event_get_dialog(event) == NULL){ belle_sip_message("creating dialog for incoming SUBSCRIBE"); belle_sip_provider_create_dialog(endpoint->provider, BELLE_SIP_TRANSACTION(server_transaction)); } } } else { resp=belle_sip_response_create_from_request(belle_sip_request_event_get_request(event),401); if (www_authenticate) belle_sip_message_add_header(BELLE_SIP_MESSAGE(resp),BELLE_SIP_HEADER(www_authenticate)); } if (endpoint->received) { via=belle_sip_message_get_header_by_type(req,belle_sip_header_via_t); belle_sip_header_via_set_received(via,endpoint->received); } belle_sip_server_transaction_send_response(server_transaction,resp); }