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( char* server,
10 int port, 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->router_class_buffer = buffer_init( JABBER_JID_BUFSIZE );
34 session->router_command_buffer = buffer_init( JABBER_JID_BUFSIZE );
37 if( session->body_buffer == NULL || session->subject_buffer == NULL ||
38 session->thread_buffer == NULL || session->from_buffer == NULL ||
39 session->status_buffer == NULL || session->recipient_buffer == NULL ||
40 session->router_to_buffer == NULL || session->router_from_buffer == NULL ||
41 session->router_class_buffer == NULL || session->router_command_buffer == NULL ||
42 session->session_id == NULL ) {
44 fatal_handler( "init_transport(): buffer_init returned NULL" );
49 /* initialize the jabber state machine */
50 session->state_machine = (jabber_machine*) safe_malloc( sizeof(jabber_machine) );
52 /* initialize the sax push parser */
53 session->parser_ctxt = xmlCreatePushParserCtxt(SAXHandler, session, "", 0, NULL);
55 /* initialize the transport_socket structure */
56 session->sock_mgr = (socket_manager*) safe_malloc( sizeof(socket_manager) );
58 session->sock_mgr->data_received = &grab_incoming;
59 session->sock_mgr->blob = session;
62 session->server = strdup(server);
64 session->unix_path = strdup(unix_path);
65 else session->unix_path = NULL;
74 /* XXX FREE THE BUFFERS */
75 int session_free( transport_session* session ) {
76 if( ! session ) { return 0; }
79 socket_manager_free(session->sock_mgr);
81 if( session->state_machine ) free( session->state_machine );
82 if( session->parser_ctxt) {
83 xmlFreeDoc( session->parser_ctxt->myDoc );
84 xmlFreeParserCtxt(session->parser_ctxt);
87 xmlCleanupCharEncodingHandlers();
91 buffer_free(session->body_buffer);
92 buffer_free(session->subject_buffer);
93 buffer_free(session->thread_buffer);
94 buffer_free(session->from_buffer);
95 buffer_free(session->recipient_buffer);
96 buffer_free(session->status_buffer);
97 buffer_free(session->message_error_type);
98 buffer_free(session->router_to_buffer);
99 buffer_free(session->router_from_buffer);
100 buffer_free(session->router_class_buffer);
101 buffer_free(session->router_command_buffer);
102 buffer_free(session->session_id);
104 free(session->server);
105 free(session->unix_path);
112 int session_wait( transport_session* session, int timeout ) {
113 if( ! session || ! session->sock_mgr ) {
117 int ret = socket_wait( session->sock_mgr, timeout, session->sock_id );
120 session->state_machine->connected = 0;
125 int session_send_msg(
126 transport_session* session, transport_message* msg ) {
128 if( ! session ) { return -1; }
130 if( ! session->state_machine->connected ) {
131 warning_handler("State machine is not connected in send_msg()");
135 message_prepare_xml( msg );
136 //tcp_send( session->sock_obj, msg->msg_xml );
137 return socket_send( session->sock_id, msg->msg_xml );
142 /* connects to server and connects to jabber */
143 int session_connect( transport_session* session,
144 const char* username, const char* password,
145 const char* resource, int connect_timeout, enum TRANSPORT_AUTH_TYPE auth_type ) {
151 warning_handler( "session is null in connect" );
156 //char* server = session->sock_obj->server;
157 char* server = session->server;
159 if( ! session->sock_id ) {
161 if(session->port > 0) {
162 if( (session->sock_id = socket_open_tcp_client(
163 session->sock_mgr, session->port, session->server)) <= 0 )
166 } else if(session->unix_path != NULL) {
167 if( (session->sock_id = socket_open_unix_client(
168 session->sock_mgr, session->unix_path)) <= 0 )
173 if( session->component ) {
175 /* the first Jabber connect stanza */
176 char* our_hostname = getenv("HOSTNAME");
177 size1 = 150 + strlen( server );
178 char stanza1[ size1 ];
179 memset( stanza1, 0, size1 );
181 "<stream:stream version='1.0' xmlns:stream='http://etherx.jabber.org/streams' "
182 "xmlns='jabber:component:accept' to='%s' from='%s' xml:lang='en'>",
183 username, our_hostname );
185 /* send the first stanze */
186 session->state_machine->connecting = CONNECTING_1;
188 // if( ! tcp_send( session->sock_obj, stanza1 ) ) {
189 if( socket_send( session->sock_id, stanza1 ) ) {
190 warning_handler("error sending");
195 //tcp_wait( session->sock_obj, connect_timeout ); /* make the timeout smarter XXX */
196 socket_wait(session->sock_mgr, connect_timeout, session->sock_id);
198 /* server acknowledges our existence, now see if we can login */
199 if( session->state_machine->connecting == CONNECTING_2 ) {
201 int ss = session->session_id->n_used + strlen(password) + 5;
203 memset(hashstuff,0,ss);
204 sprintf( hashstuff, "%s%s", session->session_id->buf, password );
206 char* hash = shahash( hashstuff );
207 size2 = 100 + strlen( hash );
208 char stanza2[ size2 ];
209 memset( stanza2, 0, size2 );
210 sprintf( stanza2, "<handshake>%s</handshake>", hash );
212 //if( ! tcp_send( session->sock_obj, stanza2 ) ) {
213 if( socket_send( session->sock_id, stanza2 ) ) {
214 warning_handler("error sending");
219 } else { /* we're not a component */
221 /* the first Jabber connect stanza */
222 size1 = 100 + strlen( server );
223 char stanza1[ size1 ];
224 memset( stanza1, 0, size1 );
226 "<stream:stream to='%s' xmlns='jabber:client' "
227 "xmlns:stream='http://etherx.jabber.org/streams'>",
231 /* send the first stanze */
232 session->state_machine->connecting = CONNECTING_1;
233 //if( ! tcp_send( session->sock_obj, stanza1 ) ) {
234 if( socket_send( session->sock_id, stanza1 ) ) {
235 warning_handler("error sending");
241 //tcp_wait( session->sock_obj, connect_timeout ); /* make the timeout smarter XXX */
242 socket_wait( session->sock_mgr, connect_timeout, session->sock_id ); /* make the timeout smarter XXX */
244 if( auth_type == AUTH_PLAIN ) {
246 /* the second jabber connect stanza including login info*/
247 size2 = 150 + strlen( username ) + strlen(password) + strlen(resource);
248 char stanza2[ size2 ];
249 memset( stanza2, 0, size2 );
252 "<iq id='123456789' type='set'><query xmlns='jabber:iq:auth'>"
253 "<username>%s</username><password>%s</password><resource>%s</resource></query></iq>",
254 username, password, resource );
256 /* server acknowledges our existence, now see if we can login */
257 if( session->state_machine->connecting == CONNECTING_2 ) {
258 //if( ! tcp_send( session->sock_obj, stanza2 ) ) {
259 if( socket_send( session->sock_id, stanza2 ) ) {
260 warning_handler("error sending");
265 } else if( auth_type == AUTH_DIGEST ) {
267 int ss = session->session_id->n_used + strlen(password) + 5;
269 memset(hashstuff,0,ss);
270 sprintf( hashstuff, "%s%s", session->session_id->buf, password );
272 char* hash = shahash( hashstuff );
274 /* the second jabber connect stanza including login info*/
275 size2 = 150 + strlen( hash ) + strlen(password) + strlen(resource);
276 char stanza2[ size2 ];
277 memset( stanza2, 0, size2 );
280 "<iq id='123456789' type='set'><query xmlns='jabber:iq:auth'>"
281 "<username>%s</username><digest>%s</digest><resource>%s</resource></query></iq>",
282 username, hash, resource );
284 /* server acknowledges our existence, now see if we can login */
285 if( session->state_machine->connecting == CONNECTING_2 ) {
286 //if( ! tcp_send( session->sock_obj, stanza2 ) ) {
287 if( socket_send( session->sock_id, stanza2 ) ) {
288 warning_handler("error sending");
299 //tcp_wait( session->sock_obj, connect_timeout );
300 socket_wait( session->sock_mgr, connect_timeout, session->sock_id );
302 if( session->state_machine->connected ) {
310 // ---------------------------------------------------------------------------------
311 // TCP data callback. Shove the data into the push parser.
312 // ---------------------------------------------------------------------------------
313 //void grab_incoming( void * session, char* data ) {
314 void grab_incoming(void* blob, socket_manager* mgr, int sockid, char* data, int parent) {
315 transport_session* ses = (transport_session*) blob;
316 if( ! ses ) { return; }
317 xmlParseChunk(ses->parser_ctxt, data, strlen(data), 0);
321 void startElementHandler(
322 void *session, const xmlChar *name, const xmlChar **atts) {
324 transport_session* ses = (transport_session*) session;
325 if( ! ses ) { return; }
328 if( strcmp( name, "message" ) == 0 ) {
329 ses->state_machine->in_message = 1;
330 buffer_add( ses->from_buffer, get_xml_attr( atts, "from" ) );
331 buffer_add( ses->recipient_buffer, get_xml_attr( atts, "to" ) );
332 buffer_add( ses->router_from_buffer, get_xml_attr( atts, "router_from" ) );
333 buffer_add( ses->router_to_buffer, get_xml_attr( atts, "router_to" ) );
334 buffer_add( ses->router_class_buffer, get_xml_attr( atts, "router_class" ) );
335 buffer_add( ses->router_command_buffer, get_xml_attr( atts, "router_command" ) );
336 char* broadcast = get_xml_attr( atts, "broadcast" );
338 ses->router_broadcast = atoi( broadcast );
343 if( ses->state_machine->in_message ) {
345 if( strcmp( name, "body" ) == 0 ) {
346 ses->state_machine->in_message_body = 1;
350 if( strcmp( name, "subject" ) == 0 ) {
351 ses->state_machine->in_subject = 1;
355 if( strcmp( name, "thread" ) == 0 ) {
356 ses->state_machine->in_thread = 1;
362 if( strcmp( name, "presence" ) == 0 ) {
363 ses->state_machine->in_presence = 1;
364 buffer_add( ses->from_buffer, get_xml_attr( atts, "from" ) );
365 buffer_add( ses->recipient_buffer, get_xml_attr( atts, "to" ) );
369 if( strcmp( name, "status" ) == 0 ) {
370 ses->state_machine->in_status = 1;
375 if( strcmp( name, "stream:error" ) == 0 ) {
376 ses->state_machine->in_error = 1;
377 warning_handler( "Received <stream:error> message from Jabber server" );
382 /* first server response from a connect attempt */
383 if( strcmp( name, "stream:stream" ) == 0 ) {
384 if( ses->state_machine->connecting == CONNECTING_1 ) {
385 ses->state_machine->connecting = CONNECTING_2;
386 buffer_add( ses->session_id, get_xml_attr(atts, "id") );
390 if( strcmp( name, "handshake" ) == 0 ) {
391 ses->state_machine->connected = 1;
392 ses->state_machine->connecting = 0;
397 if( strcmp( name, "error" ) == 0 ) {
398 ses->state_machine->in_message_error = 1;
399 buffer_add( ses->message_error_type, get_xml_attr( atts, "type" ) );
400 ses->message_error_code = atoi( get_xml_attr( atts, "code" ) );
401 warning_handler( "Received <error> message with type %s and code %s",
402 get_xml_attr( atts, "type"), get_xml_attr( atts, "code") );
406 if( strcmp( name, "iq" ) == 0 ) {
407 ses->state_machine->in_iq = 1;
409 if( strcmp( get_xml_attr(atts, "type"), "result") == 0
410 && ses->state_machine->connecting == CONNECTING_2 ) {
411 ses->state_machine->connected = 1;
412 ses->state_machine->connecting = 0;
416 if( strcmp( get_xml_attr(atts, "type"), "error") == 0 ) {
417 warning_handler( "Error connecting to jabber" );
423 char* get_xml_attr( const xmlChar** atts, char* attr_name ) {
426 for(i = 0;(atts[i] != NULL);i++) {
427 if( strcmp( atts[i++], attr_name ) == 0 ) {
428 if( atts[i] != NULL ) {
429 return (char*) atts[i];
438 // ------------------------------------------------------------------
439 // See which tags are ending
440 // ------------------------------------------------------------------
441 void endElementHandler( void *session, const xmlChar *name) {
442 transport_session* ses = (transport_session*) session;
443 if( ! ses ) { return; }
445 if( strcmp( name, "message" ) == 0 ) {
448 /* pass off the message info the callback */
449 if( ses->message_callback ) {
451 /* here it's ok to pass in the raw buffers because
452 message_init allocates new space for the chars
454 transport_message* msg = message_init(
455 ses->body_buffer->buf,
456 ses->subject_buffer->buf,
457 ses->thread_buffer->buf,
458 ses->recipient_buffer->buf,
459 ses->from_buffer->buf );
461 message_set_router_info( msg,
462 ses->router_from_buffer->buf,
463 ses->router_to_buffer->buf,
464 ses->router_class_buffer->buf,
465 ses->router_command_buffer->buf,
466 ses->router_broadcast );
468 if( ses->message_error_type->n_used > 0 ) {
469 set_msg_error( msg, ses->message_error_type->buf, ses->message_error_code );
472 if( msg == NULL ) { return; }
473 ses->message_callback( ses->user_data, msg );
476 ses->state_machine->in_message = 0;
477 reset_session_buffers( session );
481 if( strcmp( name, "body" ) == 0 ) {
482 ses->state_machine->in_message_body = 0;
486 if( strcmp( name, "subject" ) == 0 ) {
487 ses->state_machine->in_subject = 0;
491 if( strcmp( name, "thread" ) == 0 ) {
492 ses->state_machine->in_thread = 0;
496 if( strcmp( name, "iq" ) == 0 ) {
497 ses->state_machine->in_iq = 0;
498 if( ses->message_error_code > 0 ) {
499 warning_handler( "Error in IQ packet: code %d", ses->message_error_code );
500 warning_handler( "Error 401 means not authorized" );
502 reset_session_buffers( session );
506 if( strcmp( name, "presence" ) == 0 ) {
507 ses->state_machine->in_presence = 0;
509 if( ses->presence_callback ) {
510 // call the callback with the status, etc.
513 reset_session_buffers( session );
517 if( strcmp( name, "status" ) == 0 ) {
518 ses->state_machine->in_status = 0;
522 if( strcmp( name, "error" ) == 0 ) {
523 ses->state_machine->in_message_error = 0;
527 if( strcmp( name, "error:error" ) == 0 ) {
528 ses->state_machine->in_error = 0;
533 int reset_session_buffers( transport_session* ses ) {
534 buffer_reset( ses->body_buffer );
535 buffer_reset( ses->subject_buffer );
536 buffer_reset( ses->thread_buffer );
537 buffer_reset( ses->from_buffer );
538 buffer_reset( ses->recipient_buffer );
539 buffer_reset( ses->router_from_buffer );
540 buffer_reset( ses->router_to_buffer );
541 buffer_reset( ses->router_class_buffer );
542 buffer_reset( ses->router_command_buffer );
543 buffer_reset( ses->message_error_type );
544 buffer_reset( ses->session_id );
549 // ------------------------------------------------------------------
550 // takes data out of the body of the message and pushes it into
551 // the appropriate buffer
552 // ------------------------------------------------------------------
553 void characterHandler(
554 void *session, const xmlChar *ch, int len) {
557 memset( data, 0, len+1 );
558 strncpy( data, (char*) ch, len );
561 //printf( "Handling characters: %s\n", data );
562 transport_session* ses = (transport_session*) session;
563 if( ! ses ) { return; }
565 /* set the various message parts */
566 if( ses->state_machine->in_message ) {
568 if( ses->state_machine->in_message_body ) {
569 buffer_add( ses->body_buffer, data );
572 if( ses->state_machine->in_subject ) {
573 buffer_add( ses->subject_buffer, data );
576 if( ses->state_machine->in_thread ) {
577 buffer_add( ses->thread_buffer, data );
581 /* set the presence status */
582 if( ses->state_machine->in_presence && ses->state_machine->in_status ) {
583 buffer_add( ses->status_buffer, data );
586 if( ses->state_machine->in_error ) {
588 warning_handler( "ERROR Xml fragment: %s\n", ch );
593 /* XXX change to warning handlers */
594 void parseWarningHandler( void *session, const char* msg, ... ) {
598 fprintf(stdout, "transport_session XML WARNING");
599 vfprintf(stdout, msg, args);
601 fprintf(stderr, "XML WARNING: %s\n", msg );
604 void parseErrorHandler( void *session, const char* msg, ... ){
608 fprintf(stdout, "transport_session XML ERROR");
609 vfprintf(stdout, msg, args);
611 fprintf(stderr, "XML ERROR: %s\n", msg );
615 int session_disconnect( transport_session* session ) {
616 if( session == NULL ) { return 0; }
617 //tcp_send( session->sock_obj, "</stream:stream>");
618 socket_send(session->sock_id, "</stream:stream>");
619 socket_disconnect(session->sock_mgr, session->sock_id);
621 //return tcp_disconnect( session->sock_obj );