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_obj = (transport_socket*) safe_malloc( sizeof(transport_socket) );
57 session->sock_mgr = (socket_manager*) safe_malloc( sizeof(socket_manager) );
59 //int serv_size = strlen( server );
61 session->sock_obj->server = server;
62 session->sock_obj->port = port;
63 session->sock_obj->data_received_callback = &grab_incoming;
66 session->sock_mgr->data_received = &grab_incoming;
67 session->sock_mgr->blob = session;
70 session->server = strdup(server);
71 session->unix_path = strdup(unix_path);
74 /* this will be handed back to us in callbacks */
75 //session->sock_obj->user_data = session;
82 /* XXX FREE THE BUFFERS */
83 int session_free( transport_session* session ) {
84 if( ! session ) { return 0; }
86 //if( session->sock_obj )
87 // free( session->sock_obj );
90 socket_manager_free(session->sock_mgr);
92 if( session->state_machine ) free( session->state_machine );
93 if( session->parser_ctxt) {
94 xmlCleanupCharEncodingHandlers();
95 xmlFreeDoc( session->parser_ctxt->myDoc );
96 xmlFreeParserCtxt(session->parser_ctxt);
100 buffer_free(session->body_buffer);
101 buffer_free(session->subject_buffer);
102 buffer_free(session->thread_buffer);
103 buffer_free(session->from_buffer);
104 buffer_free(session->recipient_buffer);
105 buffer_free(session->status_buffer);
106 buffer_free(session->message_error_type);
107 buffer_free(session->router_to_buffer);
108 buffer_free(session->router_from_buffer);
109 buffer_free(session->router_class_buffer);
110 buffer_free(session->router_command_buffer);
111 buffer_free(session->session_id);
113 free(session->server);
114 free(session->unix_path);
121 int session_wait( transport_session* session, int timeout ) {
122 if( ! session || ! session->sock_mgr ) {
126 int ret = socket_wait( session->sock_mgr, timeout, session->sock_id );
129 session->state_machine->connected = 0;
134 int session_send_msg(
135 transport_session* session, transport_message* msg ) {
137 if( ! session ) { return 0; }
139 if( ! session->state_machine->connected ) {
140 warning_handler("State machine is not connected in send_msg()");
144 message_prepare_xml( msg );
145 //tcp_send( session->sock_obj, msg->msg_xml );
146 socket_send( session->sock_id, msg->msg_xml );
153 /* connects to server and connects to jabber */
154 int session_connect( transport_session* session,
155 const char* username, const char* password,
156 const char* resource, int connect_timeout, enum TRANSPORT_AUTH_TYPE auth_type ) {
162 warning_handler( "session is null in connect" );
167 //char* server = session->sock_obj->server;
168 char* server = session->server;
170 if( ! session->sock_id ) {
172 if(session->port > 0) {
173 if( (session->sock_id = socket_open_tcp_client(
174 session->sock_mgr, session->port, session->server)) <= 0 )
177 } else if(session->unix_path != NULL) {
178 if( (session->sock_id = socket_open_unix_client(
179 session->sock_mgr, session->unix_path)) <= 0 )
184 if( session->component ) {
186 /* the first Jabber connect stanza */
187 char* our_hostname = getenv("HOSTNAME");
188 size1 = 150 + strlen( server );
189 char stanza1[ size1 ];
190 memset( stanza1, 0, size1 );
192 "<stream:stream version='1.0' xmlns:stream='http://etherx.jabber.org/streams' "
193 "xmlns='jabber:component:accept' to='%s' from='%s' xml:lang='en'>",
194 username, our_hostname );
196 /* send the first stanze */
197 session->state_machine->connecting = CONNECTING_1;
199 // if( ! tcp_send( session->sock_obj, stanza1 ) ) {
200 if( socket_send( session->sock_id, stanza1 ) ) {
201 warning_handler("error sending");
206 //tcp_wait( session->sock_obj, connect_timeout ); /* make the timeout smarter XXX */
207 socket_wait(session->sock_mgr, connect_timeout, session->sock_id);
209 /* server acknowledges our existence, now see if we can login */
210 if( session->state_machine->connecting == CONNECTING_2 ) {
212 int ss = session->session_id->n_used + strlen(password) + 5;
214 memset(hashstuff,0,ss);
215 sprintf( hashstuff, "%s%s", session->session_id->buf, password );
217 char* hash = shahash( hashstuff );
218 size2 = 100 + strlen( hash );
219 char stanza2[ size2 ];
220 memset( stanza2, 0, size2 );
221 sprintf( stanza2, "<handshake>%s</handshake>", hash );
223 //if( ! tcp_send( session->sock_obj, stanza2 ) ) {
224 if( socket_send( session->sock_id, stanza2 ) ) {
225 warning_handler("error sending");
230 } else { /* we're not a component */
232 /* the first Jabber connect stanza */
233 size1 = 100 + strlen( server );
234 char stanza1[ size1 ];
235 memset( stanza1, 0, size1 );
237 "<stream:stream to='%s' xmlns='jabber:client' "
238 "xmlns:stream='http://etherx.jabber.org/streams'>",
242 /* send the first stanze */
243 session->state_machine->connecting = CONNECTING_1;
244 //if( ! tcp_send( session->sock_obj, stanza1 ) ) {
245 if( socket_send( session->sock_id, stanza1 ) ) {
246 warning_handler("error sending");
252 //tcp_wait( session->sock_obj, connect_timeout ); /* make the timeout smarter XXX */
253 socket_wait( session->sock_mgr, connect_timeout, session->sock_id ); /* make the timeout smarter XXX */
255 if( auth_type == AUTH_PLAIN ) {
257 /* the second jabber connect stanza including login info*/
258 size2 = 150 + strlen( username ) + strlen(password) + strlen(resource);
259 char stanza2[ size2 ];
260 memset( stanza2, 0, size2 );
263 "<iq id='123456789' type='set'><query xmlns='jabber:iq:auth'>"
264 "<username>%s</username><password>%s</password><resource>%s</resource></query></iq>",
265 username, password, resource );
267 /* server acknowledges our existence, now see if we can login */
268 if( session->state_machine->connecting == CONNECTING_2 ) {
269 //if( ! tcp_send( session->sock_obj, stanza2 ) ) {
270 if( socket_send( session->sock_id, stanza2 ) ) {
271 warning_handler("error sending");
276 } else if( auth_type == AUTH_DIGEST ) {
278 int ss = session->session_id->n_used + strlen(password) + 5;
280 memset(hashstuff,0,ss);
281 sprintf( hashstuff, "%s%s", session->session_id->buf, password );
283 char* hash = shahash( hashstuff );
285 /* the second jabber connect stanza including login info*/
286 size2 = 150 + strlen( hash ) + strlen(password) + strlen(resource);
287 char stanza2[ size2 ];
288 memset( stanza2, 0, size2 );
291 "<iq id='123456789' type='set'><query xmlns='jabber:iq:auth'>"
292 "<username>%s</username><digest>%s</digest><resource>%s</resource></query></iq>",
293 username, hash, resource );
295 /* server acknowledges our existence, now see if we can login */
296 if( session->state_machine->connecting == CONNECTING_2 ) {
297 //if( ! tcp_send( session->sock_obj, stanza2 ) ) {
298 if( socket_send( session->sock_id, stanza2 ) ) {
299 warning_handler("error sending");
310 //tcp_wait( session->sock_obj, connect_timeout );
311 socket_wait( session->sock_mgr, connect_timeout, session->sock_id );
313 if( session->state_machine->connected ) {
321 // ---------------------------------------------------------------------------------
322 // TCP data callback. Shove the data into the push parser.
323 // ---------------------------------------------------------------------------------
324 //void grab_incoming( void * session, char* data ) {
325 void grab_incoming(void* blob, socket_manager* mgr, int sockid, char* data, int parent) {
326 transport_session* ses = (transport_session*) blob;
327 if( ! ses ) { return; }
328 xmlParseChunk(ses->parser_ctxt, data, strlen(data), 0);
332 void startElementHandler(
333 void *session, const xmlChar *name, const xmlChar **atts) {
335 transport_session* ses = (transport_session*) session;
336 if( ! ses ) { return; }
339 if( strcmp( name, "message" ) == 0 ) {
340 ses->state_machine->in_message = 1;
341 buffer_add( ses->from_buffer, get_xml_attr( atts, "from" ) );
342 buffer_add( ses->recipient_buffer, get_xml_attr( atts, "to" ) );
343 buffer_add( ses->router_from_buffer, get_xml_attr( atts, "router_from" ) );
344 buffer_add( ses->router_to_buffer, get_xml_attr( atts, "router_to" ) );
345 buffer_add( ses->router_class_buffer, get_xml_attr( atts, "router_class" ) );
346 buffer_add( ses->router_command_buffer, get_xml_attr( atts, "router_command" ) );
347 char* broadcast = get_xml_attr( atts, "broadcast" );
349 ses->router_broadcast = atoi( broadcast );
354 if( ses->state_machine->in_message ) {
356 if( strcmp( name, "body" ) == 0 ) {
357 ses->state_machine->in_message_body = 1;
361 if( strcmp( name, "subject" ) == 0 ) {
362 ses->state_machine->in_subject = 1;
366 if( strcmp( name, "thread" ) == 0 ) {
367 ses->state_machine->in_thread = 1;
373 if( strcmp( name, "presence" ) == 0 ) {
374 ses->state_machine->in_presence = 1;
375 buffer_add( ses->from_buffer, get_xml_attr( atts, "from" ) );
376 buffer_add( ses->recipient_buffer, get_xml_attr( atts, "to" ) );
380 if( strcmp( name, "status" ) == 0 ) {
381 ses->state_machine->in_status = 1;
386 if( strcmp( name, "stream:error" ) == 0 ) {
387 ses->state_machine->in_error = 1;
388 warning_handler( "Received <stream:error> message from Jabber server" );
393 /* first server response from a connect attempt */
394 if( strcmp( name, "stream:stream" ) == 0 ) {
395 if( ses->state_machine->connecting == CONNECTING_1 ) {
396 ses->state_machine->connecting = CONNECTING_2;
397 buffer_add( ses->session_id, get_xml_attr(atts, "id") );
401 if( strcmp( name, "handshake" ) == 0 ) {
402 ses->state_machine->connected = 1;
403 ses->state_machine->connecting = 0;
408 if( strcmp( name, "error" ) == 0 ) {
409 ses->state_machine->in_message_error = 1;
410 buffer_add( ses->message_error_type, get_xml_attr( atts, "type" ) );
411 ses->message_error_code = atoi( get_xml_attr( atts, "code" ) );
412 warning_handler( "Received <error> message" );
416 if( strcmp( name, "iq" ) == 0 ) {
417 ses->state_machine->in_iq = 1;
419 if( strcmp( get_xml_attr(atts, "type"), "result") == 0
420 && ses->state_machine->connecting == CONNECTING_2 ) {
421 ses->state_machine->connected = 1;
422 ses->state_machine->connecting = 0;
426 if( strcmp( get_xml_attr(atts, "type"), "error") == 0 ) {
427 warning_handler( "Error connecting to jabber" );
433 char* get_xml_attr( const xmlChar** atts, char* attr_name ) {
436 for(i = 0;(atts[i] != NULL);i++) {
437 if( strcmp( atts[i++], attr_name ) == 0 ) {
438 if( atts[i] != NULL ) {
439 return (char*) atts[i];
448 // ------------------------------------------------------------------
449 // See which tags are ending
450 // ------------------------------------------------------------------
451 void endElementHandler( void *session, const xmlChar *name) {
452 transport_session* ses = (transport_session*) session;
453 if( ! ses ) { return; }
455 if( strcmp( name, "message" ) == 0 ) {
458 /* pass off the message info the callback */
459 if( ses->message_callback ) {
461 /* here it's ok to pass in the raw buffers because
462 message_init allocates new space for the chars
464 transport_message* msg = message_init(
465 ses->body_buffer->buf,
466 ses->subject_buffer->buf,
467 ses->thread_buffer->buf,
468 ses->recipient_buffer->buf,
469 ses->from_buffer->buf );
471 message_set_router_info( msg,
472 ses->router_from_buffer->buf,
473 ses->router_to_buffer->buf,
474 ses->router_class_buffer->buf,
475 ses->router_command_buffer->buf,
476 ses->router_broadcast );
478 if( ses->message_error_type->n_used > 0 ) {
479 set_msg_error( msg, ses->message_error_type->buf, ses->message_error_code );
482 if( msg == NULL ) { return; }
483 ses->message_callback( ses->user_data, msg );
486 ses->state_machine->in_message = 0;
487 reset_session_buffers( session );
491 if( strcmp( name, "body" ) == 0 ) {
492 ses->state_machine->in_message_body = 0;
496 if( strcmp( name, "subject" ) == 0 ) {
497 ses->state_machine->in_subject = 0;
501 if( strcmp( name, "thread" ) == 0 ) {
502 ses->state_machine->in_thread = 0;
506 if( strcmp( name, "iq" ) == 0 ) {
507 ses->state_machine->in_iq = 0;
508 if( ses->message_error_code > 0 ) {
509 warning_handler( "Error in IQ packet: code %d", ses->message_error_code );
510 warning_handler( "Error 401 means not authorized" );
512 reset_session_buffers( session );
516 if( strcmp( name, "presence" ) == 0 ) {
517 ses->state_machine->in_presence = 0;
519 if( ses->presence_callback ) {
520 // call the callback with the status, etc.
523 reset_session_buffers( session );
527 if( strcmp( name, "status" ) == 0 ) {
528 ses->state_machine->in_status = 0;
532 if( strcmp( name, "error" ) == 0 ) {
533 ses->state_machine->in_message_error = 0;
537 if( strcmp( name, "error:error" ) == 0 ) {
538 ses->state_machine->in_error = 0;
543 int reset_session_buffers( transport_session* ses ) {
544 buffer_reset( ses->body_buffer );
545 buffer_reset( ses->subject_buffer );
546 buffer_reset( ses->thread_buffer );
547 buffer_reset( ses->from_buffer );
548 buffer_reset( ses->recipient_buffer );
549 buffer_reset( ses->router_from_buffer );
550 buffer_reset( ses->router_to_buffer );
551 buffer_reset( ses->router_class_buffer );
552 buffer_reset( ses->router_command_buffer );
553 buffer_reset( ses->message_error_type );
554 buffer_reset( ses->session_id );
559 // ------------------------------------------------------------------
560 // takes data out of the body of the message and pushes it into
561 // the appropriate buffer
562 // ------------------------------------------------------------------
563 void characterHandler(
564 void *session, const xmlChar *ch, int len) {
567 memset( data, 0, len+1 );
568 strncpy( data, (char*) ch, len );
571 //printf( "Handling characters: %s\n", data );
572 transport_session* ses = (transport_session*) session;
573 if( ! ses ) { return; }
575 /* set the various message parts */
576 if( ses->state_machine->in_message ) {
578 if( ses->state_machine->in_message_body ) {
579 buffer_add( ses->body_buffer, data );
582 if( ses->state_machine->in_subject ) {
583 buffer_add( ses->subject_buffer, data );
586 if( ses->state_machine->in_thread ) {
587 buffer_add( ses->thread_buffer, data );
591 /* set the presence status */
592 if( ses->state_machine->in_presence && ses->state_machine->in_status ) {
593 buffer_add( ses->status_buffer, data );
596 if( ses->state_machine->in_error ) {
598 warning_handler( "ERROR Xml fragment: %s\n", ch );
603 /* XXX change to warning handlers */
604 void parseWarningHandler( void *session, const char* msg, ... ) {
608 fprintf(stdout, "transport_session XML WARNING");
609 vfprintf(stdout, msg, args);
611 fprintf(stderr, "XML WARNING: %s\n", msg );
614 void parseErrorHandler( void *session, const char* msg, ... ){
618 fprintf(stdout, "transport_session XML ERROR");
619 vfprintf(stdout, msg, args);
621 fprintf(stderr, "XML ERROR: %s\n", msg );
625 int session_disconnect( transport_session* session ) {
626 if( session == NULL ) { return 0; }
627 //tcp_send( session->sock_obj, "</stream:stream>");
628 socket_send(session->sock_id, "</stream:stream>");
629 socket_disconnect(session->sock_mgr, session->sock_id);
631 //return tcp_disconnect( session->sock_obj );