1 #include "transport_session.h"
5 // ---------------------------------------------------------------------------------
6 // returns a built and allocated transport_session object.
7 // This codes does no network activity, only memory initilization
8 // ---------------------------------------------------------------------------------
9 transport_session* init_transport( const char* server,
10 int port, const char* unix_path, void* user_data, int component ) {
12 /* create the session struct */
13 transport_session* session =
14 (transport_session*) safe_malloc( sizeof(transport_session) );
16 session->user_data = user_data;
18 session->component = component;
20 /* initialize the data buffers */
21 session->body_buffer = buffer_init( JABBER_BODY_BUFSIZE );
22 session->subject_buffer = buffer_init( JABBER_SUBJECT_BUFSIZE );
23 session->thread_buffer = buffer_init( JABBER_THREAD_BUFSIZE );
24 session->from_buffer = buffer_init( JABBER_JID_BUFSIZE );
25 session->status_buffer = buffer_init( JABBER_STATUS_BUFSIZE );
26 session->recipient_buffer = buffer_init( JABBER_JID_BUFSIZE );
27 session->message_error_type = buffer_init( JABBER_JID_BUFSIZE );
28 session->session_id = buffer_init( 64 );
30 /* for OpenSRF extensions */
31 session->router_to_buffer = buffer_init( JABBER_JID_BUFSIZE );
32 session->router_from_buffer = buffer_init( JABBER_JID_BUFSIZE );
33 session->osrf_xid_buffer = buffer_init( JABBER_JID_BUFSIZE );
34 session->router_class_buffer = buffer_init( JABBER_JID_BUFSIZE );
35 session->router_command_buffer = buffer_init( JABBER_JID_BUFSIZE );
38 if( session->body_buffer == NULL || session->subject_buffer == NULL ||
39 session->thread_buffer == NULL || session->from_buffer == NULL ||
40 session->status_buffer == NULL || session->recipient_buffer == NULL ||
41 session->router_to_buffer == NULL || session->router_from_buffer == NULL ||
42 session->router_class_buffer == NULL || session->router_command_buffer == NULL ||
43 session->session_id == NULL ) {
45 osrfLogError(OSRF_LOG_MARK, "init_transport(): buffer_init returned NULL" );
50 /* initialize the jabber state machine */
51 session->state_machine = (jabber_machine*) safe_malloc( sizeof(jabber_machine) );
53 /* initialize the sax push parser */
54 session->parser_ctxt = xmlCreatePushParserCtxt(SAXHandler, session, "", 0, NULL);
56 /* initialize the transport_socket structure */
57 session->sock_mgr = (socket_manager*) safe_malloc( sizeof(socket_manager) );
59 session->sock_mgr->data_received = &grab_incoming;
60 session->sock_mgr->blob = session;
63 session->server = strdup(server);
65 session->unix_path = strdup(unix_path);
66 else session->unix_path = NULL;
75 /* XXX FREE THE BUFFERS */
76 int session_free( transport_session* session ) {
77 if( ! session ) { return 0; }
80 socket_manager_free(session->sock_mgr);
82 if( session->state_machine ) free( session->state_machine );
83 if( session->parser_ctxt) {
84 xmlFreeDoc( session->parser_ctxt->myDoc );
85 xmlFreeParserCtxt(session->parser_ctxt);
88 xmlCleanupCharEncodingHandlers();
92 buffer_free(session->body_buffer);
93 buffer_free(session->subject_buffer);
94 buffer_free(session->thread_buffer);
95 buffer_free(session->from_buffer);
96 buffer_free(session->recipient_buffer);
97 buffer_free(session->status_buffer);
98 buffer_free(session->message_error_type);
99 buffer_free(session->router_to_buffer);
100 buffer_free(session->router_from_buffer);
101 buffer_free(session->osrf_xid_buffer);
102 buffer_free(session->router_class_buffer);
103 buffer_free(session->router_command_buffer);
104 buffer_free(session->session_id);
106 free(session->server);
107 free(session->unix_path);
114 int session_wait( transport_session* session, int timeout ) {
115 if( ! session || ! session->sock_mgr ) {
119 int ret = socket_wait( session->sock_mgr, timeout, session->sock_id );
122 osrfLogDebug(OSRF_LOG_MARK, "socket_wait returned error code %d", ret);
123 session->state_machine->connected = 0;
128 int session_send_msg(
129 transport_session* session, transport_message* msg ) {
131 if( ! session ) { return -1; }
133 if( ! session->state_machine->connected ) {
134 osrfLogWarning(OSRF_LOG_MARK, "State machine is not connected in send_msg()");
138 message_prepare_xml( msg );
139 //tcp_send( session->sock_obj, msg->msg_xml );
140 return socket_send( session->sock_id, msg->msg_xml );
145 /* connects to server and connects to jabber */
146 int session_connect( transport_session* session,
147 const char* username, const char* password,
148 const char* resource, int connect_timeout, enum TRANSPORT_AUTH_TYPE auth_type ) {
154 osrfLogWarning(OSRF_LOG_MARK, "session is null in connect" );
159 //char* server = session->sock_obj->server;
160 char* server = session->server;
162 if( ! session->sock_id ) {
164 if(session->port > 0) {
165 if( (session->sock_id = socket_open_tcp_client(
166 session->sock_mgr, session->port, session->server)) <= 0 )
169 } else if(session->unix_path != NULL) {
170 if( (session->sock_id = socket_open_unix_client(
171 session->sock_mgr, session->unix_path)) <= 0 )
176 if( session->component ) {
178 /* the first Jabber connect stanza */
179 char* our_hostname = getenv("HOSTNAME");
180 size1 = 150 + strlen( server );
181 char stanza1[ size1 ];
182 memset( stanza1, 0, size1 );
184 "<stream:stream version='1.0' xmlns:stream='http://etherx.jabber.org/streams' "
185 "xmlns='jabber:component:accept' to='%s' from='%s' xml:lang='en'>",
186 username, our_hostname );
188 /* send the first stanze */
189 session->state_machine->connecting = CONNECTING_1;
191 // if( ! tcp_send( session->sock_obj, stanza1 ) ) {
192 if( socket_send( session->sock_id, stanza1 ) ) {
193 osrfLogWarning(OSRF_LOG_MARK, "error sending");
198 //tcp_wait( session->sock_obj, connect_timeout ); /* make the timeout smarter XXX */
199 socket_wait(session->sock_mgr, connect_timeout, session->sock_id);
201 /* server acknowledges our existence, now see if we can login */
202 if( session->state_machine->connecting == CONNECTING_2 ) {
204 int ss = session->session_id->n_used + strlen(password) + 5;
206 memset(hashstuff,0,ss);
207 sprintf( hashstuff, "%s%s", session->session_id->buf, password );
209 char* hash = shahash( hashstuff );
210 size2 = 100 + strlen( hash );
211 char stanza2[ size2 ];
212 memset( stanza2, 0, size2 );
213 sprintf( stanza2, "<handshake>%s</handshake>", hash );
215 //if( ! tcp_send( session->sock_obj, stanza2 ) ) {
216 if( socket_send( session->sock_id, stanza2 ) ) {
217 osrfLogWarning(OSRF_LOG_MARK, "error sending");
222 } else { /* we're not a component */
224 /* the first Jabber connect stanza */
225 size1 = 100 + strlen( server );
226 char stanza1[ size1 ];
227 memset( stanza1, 0, size1 );
229 "<stream:stream to='%s' xmlns='jabber:client' "
230 "xmlns:stream='http://etherx.jabber.org/streams'>",
234 /* send the first stanze */
235 session->state_machine->connecting = CONNECTING_1;
236 //if( ! tcp_send( session->sock_obj, stanza1 ) ) {
237 if( socket_send( session->sock_id, stanza1 ) ) {
238 osrfLogWarning(OSRF_LOG_MARK, "error sending");
244 //tcp_wait( session->sock_obj, connect_timeout ); /* make the timeout smarter XXX */
245 socket_wait( session->sock_mgr, connect_timeout, session->sock_id ); /* make the timeout smarter XXX */
247 if( auth_type == AUTH_PLAIN ) {
249 /* the second jabber connect stanza including login info*/
250 size2 = 150 + strlen( username ) + strlen(password) + strlen(resource);
251 char stanza2[ size2 ];
252 memset( stanza2, 0, size2 );
255 "<iq id='123456789' type='set'><query xmlns='jabber:iq:auth'>"
256 "<username>%s</username><password>%s</password><resource>%s</resource></query></iq>",
257 username, password, resource );
259 /* server acknowledges our existence, now see if we can login */
260 if( session->state_machine->connecting == CONNECTING_2 ) {
261 //if( ! tcp_send( session->sock_obj, stanza2 ) ) {
262 if( socket_send( session->sock_id, stanza2 ) ) {
263 osrfLogWarning(OSRF_LOG_MARK, "error sending");
268 } else if( auth_type == AUTH_DIGEST ) {
270 int ss = session->session_id->n_used + strlen(password) + 5;
272 memset(hashstuff,0,ss);
273 sprintf( hashstuff, "%s%s", session->session_id->buf, password );
275 char* hash = shahash( hashstuff );
277 /* the second jabber connect stanza including login info*/
278 size2 = 150 + strlen( hash ) + strlen(password) + strlen(resource);
279 char stanza2[ size2 ];
280 memset( stanza2, 0, size2 );
283 "<iq id='123456789' type='set'><query xmlns='jabber:iq:auth'>"
284 "<username>%s</username><digest>%s</digest><resource>%s</resource></query></iq>",
285 username, hash, resource );
287 /* server acknowledges our existence, now see if we can login */
288 if( session->state_machine->connecting == CONNECTING_2 ) {
289 //if( ! tcp_send( session->sock_obj, stanza2 ) ) {
290 if( socket_send( session->sock_id, stanza2 ) ) {
291 osrfLogWarning(OSRF_LOG_MARK, "error sending");
302 //tcp_wait( session->sock_obj, connect_timeout );
303 socket_wait( session->sock_mgr, connect_timeout, session->sock_id );
305 if( session->state_machine->connected ) {
313 // ---------------------------------------------------------------------------------
314 // TCP data callback. Shove the data into the push parser.
315 // ---------------------------------------------------------------------------------
316 //void grab_incoming( void * session, char* data ) {
317 void grab_incoming(void* blob, socket_manager* mgr, int sockid, char* data, int parent) {
318 transport_session* ses = (transport_session*) blob;
319 if( ! ses ) { return; }
320 xmlParseChunk(ses->parser_ctxt, data, strlen(data), 0);
324 void startElementHandler(
325 void *session, const xmlChar *name, const xmlChar **atts) {
327 transport_session* ses = (transport_session*) session;
328 if( ! ses ) { return; }
331 if( strcmp( name, "message" ) == 0 ) {
332 ses->state_machine->in_message = 1;
333 buffer_add( ses->from_buffer, get_xml_attr( atts, "from" ) );
334 buffer_add( ses->recipient_buffer, get_xml_attr( atts, "to" ) );
335 buffer_add( ses->router_from_buffer, get_xml_attr( atts, "router_from" ) );
336 buffer_add( ses->osrf_xid_buffer, get_xml_attr( atts, "osrf_xid" ) );
337 buffer_add( ses->router_to_buffer, get_xml_attr( atts, "router_to" ) );
338 buffer_add( ses->router_class_buffer, get_xml_attr( atts, "router_class" ) );
339 buffer_add( ses->router_command_buffer, get_xml_attr( atts, "router_command" ) );
340 char* broadcast = get_xml_attr( atts, "broadcast" );
342 ses->router_broadcast = atoi( broadcast );
347 if( ses->state_machine->in_message ) {
349 if( strcmp( name, "body" ) == 0 ) {
350 ses->state_machine->in_message_body = 1;
354 if( strcmp( name, "subject" ) == 0 ) {
355 ses->state_machine->in_subject = 1;
359 if( strcmp( name, "thread" ) == 0 ) {
360 ses->state_machine->in_thread = 1;
366 if( strcmp( name, "presence" ) == 0 ) {
367 ses->state_machine->in_presence = 1;
368 buffer_add( ses->from_buffer, get_xml_attr( atts, "from" ) );
369 buffer_add( ses->recipient_buffer, get_xml_attr( atts, "to" ) );
373 if( strcmp( name, "status" ) == 0 ) {
374 ses->state_machine->in_status = 1;
379 if( strcmp( name, "stream:error" ) == 0 ) {
380 ses->state_machine->in_error = 1;
381 ses->state_machine->connected = 0;
382 osrfLogWarning( OSRF_LOG_MARK, "Received <stream:error> message from Jabber server" );
387 /* first server response from a connect attempt */
388 if( strcmp( name, "stream:stream" ) == 0 ) {
389 if( ses->state_machine->connecting == CONNECTING_1 ) {
390 ses->state_machine->connecting = CONNECTING_2;
391 buffer_add( ses->session_id, get_xml_attr(atts, "id") );
395 if( strcmp( name, "handshake" ) == 0 ) {
396 ses->state_machine->connected = 1;
397 ses->state_machine->connecting = 0;
402 if( strcmp( name, "error" ) == 0 ) {
403 ses->state_machine->in_message_error = 1;
404 buffer_add( ses->message_error_type, get_xml_attr( atts, "type" ) );
405 ses->message_error_code = atoi( get_xml_attr( atts, "code" ) );
406 osrfLogInfo( OSRF_LOG_MARK, "Received <error> message with type %s and code %s",
407 get_xml_attr( atts, "type"), get_xml_attr( atts, "code") );
411 if( strcmp( name, "iq" ) == 0 ) {
412 ses->state_machine->in_iq = 1;
414 if( strcmp( get_xml_attr(atts, "type"), "result") == 0
415 && ses->state_machine->connecting == CONNECTING_2 ) {
416 ses->state_machine->connected = 1;
417 ses->state_machine->connecting = 0;
421 if( strcmp( get_xml_attr(atts, "type"), "error") == 0 ) {
422 osrfLogWarning( OSRF_LOG_MARK, "Error connecting to jabber" );
428 char* get_xml_attr( const xmlChar** atts, char* attr_name ) {
431 for(i = 0;(atts[i] != NULL);i++) {
432 if( strcmp( atts[i++], attr_name ) == 0 ) {
433 if( atts[i] != NULL ) {
434 return (char*) atts[i];
443 // ------------------------------------------------------------------
444 // See which tags are ending
445 // ------------------------------------------------------------------
446 void endElementHandler( void *session, const xmlChar *name) {
447 transport_session* ses = (transport_session*) session;
448 if( ! ses ) { return; }
450 if( strcmp( name, "message" ) == 0 ) {
453 /* pass off the message info the callback */
454 if( ses->message_callback ) {
456 /* here it's ok to pass in the raw buffers because
457 message_init allocates new space for the chars
459 transport_message* msg = message_init(
460 ses->body_buffer->buf,
461 ses->subject_buffer->buf,
462 ses->thread_buffer->buf,
463 ses->recipient_buffer->buf,
464 ses->from_buffer->buf );
466 message_set_router_info( msg,
467 ses->router_from_buffer->buf,
468 ses->router_to_buffer->buf,
469 ses->router_class_buffer->buf,
470 ses->router_command_buffer->buf,
471 ses->router_broadcast );
473 message_set_osrf_xid( msg, ses->osrf_xid_buffer->buf );
475 if( ses->message_error_type->n_used > 0 ) {
476 set_msg_error( msg, ses->message_error_type->buf, ses->message_error_code );
479 if( msg == NULL ) { return; }
480 ses->message_callback( ses->user_data, msg );
483 ses->state_machine->in_message = 0;
484 reset_session_buffers( session );
488 if( strcmp( name, "body" ) == 0 ) {
489 ses->state_machine->in_message_body = 0;
493 if( strcmp( name, "subject" ) == 0 ) {
494 ses->state_machine->in_subject = 0;
498 if( strcmp( name, "thread" ) == 0 ) {
499 ses->state_machine->in_thread = 0;
503 if( strcmp( name, "iq" ) == 0 ) {
504 ses->state_machine->in_iq = 0;
505 if( ses->message_error_code > 0 ) {
506 osrfLogWarning( OSRF_LOG_MARK, "Error in IQ packet: code %d", ses->message_error_code );
507 osrfLogWarning( OSRF_LOG_MARK, "Error 401 means not authorized" );
509 reset_session_buffers( session );
513 if( strcmp( name, "presence" ) == 0 ) {
514 ses->state_machine->in_presence = 0;
516 if( ses->presence_callback ) {
517 // call the callback with the status, etc.
520 reset_session_buffers( session );
524 if( strcmp( name, "status" ) == 0 ) {
525 ses->state_machine->in_status = 0;
529 if( strcmp( name, "error" ) == 0 ) {
530 ses->state_machine->in_message_error = 0;
534 if( strcmp( name, "error:error" ) == 0 ) {
535 ses->state_machine->in_error = 0;
540 int reset_session_buffers( transport_session* ses ) {
541 buffer_reset( ses->body_buffer );
542 buffer_reset( ses->subject_buffer );
543 buffer_reset( ses->thread_buffer );
544 buffer_reset( ses->from_buffer );
545 buffer_reset( ses->recipient_buffer );
546 buffer_reset( ses->router_from_buffer );
547 buffer_reset( ses->osrf_xid_buffer );
548 buffer_reset( ses->router_to_buffer );
549 buffer_reset( ses->router_class_buffer );
550 buffer_reset( ses->router_command_buffer );
551 buffer_reset( ses->message_error_type );
552 buffer_reset( ses->session_id );
557 // ------------------------------------------------------------------
558 // takes data out of the body of the message and pushes it into
559 // the appropriate buffer
560 // ------------------------------------------------------------------
561 void characterHandler(
562 void *session, const xmlChar *ch, int len) {
565 memset( data, 0, len+1 );
566 strncpy( data, (char*) ch, len );
569 //printf( "Handling characters: %s\n", data );
570 transport_session* ses = (transport_session*) session;
571 if( ! ses ) { return; }
573 /* set the various message parts */
574 if( ses->state_machine->in_message ) {
576 if( ses->state_machine->in_message_body ) {
577 buffer_add( ses->body_buffer, data );
580 if( ses->state_machine->in_subject ) {
581 buffer_add( ses->subject_buffer, data );
584 if( ses->state_machine->in_thread ) {
585 buffer_add( ses->thread_buffer, data );
589 /* set the presence status */
590 if( ses->state_machine->in_presence && ses->state_machine->in_status ) {
591 buffer_add( ses->status_buffer, data );
594 if( ses->state_machine->in_error ) {
596 osrfLogWarning( OSRF_LOG_MARK, "ERROR Xml fragment: %s\n", ch );
601 /* XXX change to warning handlers */
602 void parseWarningHandler( void *session, const char* msg, ... ) {
606 fprintf(stdout, "transport_session XML WARNING");
607 vfprintf(stdout, msg, args);
609 fprintf(stderr, "XML WARNING: %s\n", msg );
612 void parseErrorHandler( void *session, const char* msg, ... ){
616 fprintf(stdout, "transport_session XML ERROR");
617 vfprintf(stdout, msg, args);
619 fprintf(stderr, "XML ERROR: %s\n", msg );
623 int session_disconnect( transport_session* session ) {
624 if( session == NULL ) { return 0; }
625 //tcp_send( session->sock_obj, "</stream:stream>");
626 socket_send(session->sock_id, "</stream:stream>");
627 socket_disconnect(session->sock_mgr, session->sock_id);
629 //return tcp_disconnect( session->sock_obj );