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 0; }
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 socket_send( session->sock_id, msg->msg_xml );
144 /* connects to server and connects to jabber */
145 int session_connect( transport_session* session,
146 const char* username, const char* password,
147 const char* resource, int connect_timeout, enum TRANSPORT_AUTH_TYPE auth_type ) {
153 warning_handler( "session is null in connect" );
158 //char* server = session->sock_obj->server;
159 char* server = session->server;
161 if( ! session->sock_id ) {
163 if(session->port > 0) {
164 if( (session->sock_id = socket_open_tcp_client(
165 session->sock_mgr, session->port, session->server)) <= 0 )
168 } else if(session->unix_path != NULL) {
169 if( (session->sock_id = socket_open_unix_client(
170 session->sock_mgr, session->unix_path)) <= 0 )
175 if( session->component ) {
177 /* the first Jabber connect stanza */
178 char* our_hostname = getenv("HOSTNAME");
179 size1 = 150 + strlen( server );
180 char stanza1[ size1 ];
181 memset( stanza1, 0, size1 );
183 "<stream:stream version='1.0' xmlns:stream='http://etherx.jabber.org/streams' "
184 "xmlns='jabber:component:accept' to='%s' from='%s' xml:lang='en'>",
185 username, our_hostname );
187 /* send the first stanze */
188 session->state_machine->connecting = CONNECTING_1;
190 // if( ! tcp_send( session->sock_obj, stanza1 ) ) {
191 if( socket_send( session->sock_id, stanza1 ) ) {
192 warning_handler("error sending");
197 //tcp_wait( session->sock_obj, connect_timeout ); /* make the timeout smarter XXX */
198 socket_wait(session->sock_mgr, connect_timeout, session->sock_id);
200 /* server acknowledges our existence, now see if we can login */
201 if( session->state_machine->connecting == CONNECTING_2 ) {
203 int ss = session->session_id->n_used + strlen(password) + 5;
205 memset(hashstuff,0,ss);
206 sprintf( hashstuff, "%s%s", session->session_id->buf, password );
208 char* hash = shahash( hashstuff );
209 size2 = 100 + strlen( hash );
210 char stanza2[ size2 ];
211 memset( stanza2, 0, size2 );
212 sprintf( stanza2, "<handshake>%s</handshake>", hash );
214 //if( ! tcp_send( session->sock_obj, stanza2 ) ) {
215 if( socket_send( session->sock_id, stanza2 ) ) {
216 warning_handler("error sending");
221 } else { /* we're not a component */
223 /* the first Jabber connect stanza */
224 size1 = 100 + strlen( server );
225 char stanza1[ size1 ];
226 memset( stanza1, 0, size1 );
228 "<stream:stream to='%s' xmlns='jabber:client' "
229 "xmlns:stream='http://etherx.jabber.org/streams'>",
233 /* send the first stanze */
234 session->state_machine->connecting = CONNECTING_1;
235 //if( ! tcp_send( session->sock_obj, stanza1 ) ) {
236 if( socket_send( session->sock_id, stanza1 ) ) {
237 warning_handler("error sending");
243 //tcp_wait( session->sock_obj, connect_timeout ); /* make the timeout smarter XXX */
244 socket_wait( session->sock_mgr, connect_timeout, session->sock_id ); /* make the timeout smarter XXX */
246 if( auth_type == AUTH_PLAIN ) {
248 /* the second jabber connect stanza including login info*/
249 size2 = 150 + strlen( username ) + strlen(password) + strlen(resource);
250 char stanza2[ size2 ];
251 memset( stanza2, 0, size2 );
254 "<iq id='123456789' type='set'><query xmlns='jabber:iq:auth'>"
255 "<username>%s</username><password>%s</password><resource>%s</resource></query></iq>",
256 username, password, resource );
258 /* server acknowledges our existence, now see if we can login */
259 if( session->state_machine->connecting == CONNECTING_2 ) {
260 //if( ! tcp_send( session->sock_obj, stanza2 ) ) {
261 if( socket_send( session->sock_id, stanza2 ) ) {
262 warning_handler("error sending");
267 } else if( auth_type == AUTH_DIGEST ) {
269 int ss = session->session_id->n_used + strlen(password) + 5;
271 memset(hashstuff,0,ss);
272 sprintf( hashstuff, "%s%s", session->session_id->buf, password );
274 char* hash = shahash( hashstuff );
276 /* the second jabber connect stanza including login info*/
277 size2 = 150 + strlen( hash ) + strlen(password) + strlen(resource);
278 char stanza2[ size2 ];
279 memset( stanza2, 0, size2 );
282 "<iq id='123456789' type='set'><query xmlns='jabber:iq:auth'>"
283 "<username>%s</username><digest>%s</digest><resource>%s</resource></query></iq>",
284 username, hash, resource );
286 /* server acknowledges our existence, now see if we can login */
287 if( session->state_machine->connecting == CONNECTING_2 ) {
288 //if( ! tcp_send( session->sock_obj, stanza2 ) ) {
289 if( socket_send( session->sock_id, stanza2 ) ) {
290 warning_handler("error sending");
301 //tcp_wait( session->sock_obj, connect_timeout );
302 socket_wait( session->sock_mgr, connect_timeout, session->sock_id );
304 if( session->state_machine->connected ) {
312 // ---------------------------------------------------------------------------------
313 // TCP data callback. Shove the data into the push parser.
314 // ---------------------------------------------------------------------------------
315 //void grab_incoming( void * session, char* data ) {
316 void grab_incoming(void* blob, socket_manager* mgr, int sockid, char* data, int parent) {
317 transport_session* ses = (transport_session*) blob;
318 if( ! ses ) { return; }
319 xmlParseChunk(ses->parser_ctxt, data, strlen(data), 0);
323 void startElementHandler(
324 void *session, const xmlChar *name, const xmlChar **atts) {
326 transport_session* ses = (transport_session*) session;
327 if( ! ses ) { return; }
330 if( strcmp( name, "message" ) == 0 ) {
331 ses->state_machine->in_message = 1;
332 buffer_add( ses->from_buffer, get_xml_attr( atts, "from" ) );
333 buffer_add( ses->recipient_buffer, get_xml_attr( atts, "to" ) );
334 buffer_add( ses->router_from_buffer, get_xml_attr( atts, "router_from" ) );
335 buffer_add( ses->router_to_buffer, get_xml_attr( atts, "router_to" ) );
336 buffer_add( ses->router_class_buffer, get_xml_attr( atts, "router_class" ) );
337 buffer_add( ses->router_command_buffer, get_xml_attr( atts, "router_command" ) );
338 char* broadcast = get_xml_attr( atts, "broadcast" );
340 ses->router_broadcast = atoi( broadcast );
345 if( ses->state_machine->in_message ) {
347 if( strcmp( name, "body" ) == 0 ) {
348 ses->state_machine->in_message_body = 1;
352 if( strcmp( name, "subject" ) == 0 ) {
353 ses->state_machine->in_subject = 1;
357 if( strcmp( name, "thread" ) == 0 ) {
358 ses->state_machine->in_thread = 1;
364 if( strcmp( name, "presence" ) == 0 ) {
365 ses->state_machine->in_presence = 1;
366 buffer_add( ses->from_buffer, get_xml_attr( atts, "from" ) );
367 buffer_add( ses->recipient_buffer, get_xml_attr( atts, "to" ) );
371 if( strcmp( name, "status" ) == 0 ) {
372 ses->state_machine->in_status = 1;
377 if( strcmp( name, "stream:error" ) == 0 ) {
378 ses->state_machine->in_error = 1;
379 warning_handler( "Received <stream:error> message from Jabber server" );
384 /* first server response from a connect attempt */
385 if( strcmp( name, "stream:stream" ) == 0 ) {
386 if( ses->state_machine->connecting == CONNECTING_1 ) {
387 ses->state_machine->connecting = CONNECTING_2;
388 buffer_add( ses->session_id, get_xml_attr(atts, "id") );
392 if( strcmp( name, "handshake" ) == 0 ) {
393 ses->state_machine->connected = 1;
394 ses->state_machine->connecting = 0;
399 if( strcmp( name, "error" ) == 0 ) {
400 ses->state_machine->in_message_error = 1;
401 buffer_add( ses->message_error_type, get_xml_attr( atts, "type" ) );
402 ses->message_error_code = atoi( get_xml_attr( atts, "code" ) );
403 warning_handler( "Received <error> message" );
407 if( strcmp( name, "iq" ) == 0 ) {
408 ses->state_machine->in_iq = 1;
410 if( strcmp( get_xml_attr(atts, "type"), "result") == 0
411 && ses->state_machine->connecting == CONNECTING_2 ) {
412 ses->state_machine->connected = 1;
413 ses->state_machine->connecting = 0;
417 if( strcmp( get_xml_attr(atts, "type"), "error") == 0 ) {
418 warning_handler( "Error connecting to jabber" );
424 char* get_xml_attr( const xmlChar** atts, char* attr_name ) {
427 for(i = 0;(atts[i] != NULL);i++) {
428 if( strcmp( atts[i++], attr_name ) == 0 ) {
429 if( atts[i] != NULL ) {
430 return (char*) atts[i];
439 // ------------------------------------------------------------------
440 // See which tags are ending
441 // ------------------------------------------------------------------
442 void endElementHandler( void *session, const xmlChar *name) {
443 transport_session* ses = (transport_session*) session;
444 if( ! ses ) { return; }
446 if( strcmp( name, "message" ) == 0 ) {
449 /* pass off the message info the callback */
450 if( ses->message_callback ) {
452 /* here it's ok to pass in the raw buffers because
453 message_init allocates new space for the chars
455 transport_message* msg = message_init(
456 ses->body_buffer->buf,
457 ses->subject_buffer->buf,
458 ses->thread_buffer->buf,
459 ses->recipient_buffer->buf,
460 ses->from_buffer->buf );
462 message_set_router_info( msg,
463 ses->router_from_buffer->buf,
464 ses->router_to_buffer->buf,
465 ses->router_class_buffer->buf,
466 ses->router_command_buffer->buf,
467 ses->router_broadcast );
469 if( ses->message_error_type->n_used > 0 ) {
470 set_msg_error( msg, ses->message_error_type->buf, ses->message_error_code );
473 if( msg == NULL ) { return; }
474 ses->message_callback( ses->user_data, msg );
477 ses->state_machine->in_message = 0;
478 reset_session_buffers( session );
482 if( strcmp( name, "body" ) == 0 ) {
483 ses->state_machine->in_message_body = 0;
487 if( strcmp( name, "subject" ) == 0 ) {
488 ses->state_machine->in_subject = 0;
492 if( strcmp( name, "thread" ) == 0 ) {
493 ses->state_machine->in_thread = 0;
497 if( strcmp( name, "iq" ) == 0 ) {
498 ses->state_machine->in_iq = 0;
499 if( ses->message_error_code > 0 ) {
500 warning_handler( "Error in IQ packet: code %d", ses->message_error_code );
501 warning_handler( "Error 401 means not authorized" );
503 reset_session_buffers( session );
507 if( strcmp( name, "presence" ) == 0 ) {
508 ses->state_machine->in_presence = 0;
510 if( ses->presence_callback ) {
511 // call the callback with the status, etc.
514 reset_session_buffers( session );
518 if( strcmp( name, "status" ) == 0 ) {
519 ses->state_machine->in_status = 0;
523 if( strcmp( name, "error" ) == 0 ) {
524 ses->state_machine->in_message_error = 0;
528 if( strcmp( name, "error:error" ) == 0 ) {
529 ses->state_machine->in_error = 0;
534 int reset_session_buffers( transport_session* ses ) {
535 buffer_reset( ses->body_buffer );
536 buffer_reset( ses->subject_buffer );
537 buffer_reset( ses->thread_buffer );
538 buffer_reset( ses->from_buffer );
539 buffer_reset( ses->recipient_buffer );
540 buffer_reset( ses->router_from_buffer );
541 buffer_reset( ses->router_to_buffer );
542 buffer_reset( ses->router_class_buffer );
543 buffer_reset( ses->router_command_buffer );
544 buffer_reset( ses->message_error_type );
545 buffer_reset( ses->session_id );
550 // ------------------------------------------------------------------
551 // takes data out of the body of the message and pushes it into
552 // the appropriate buffer
553 // ------------------------------------------------------------------
554 void characterHandler(
555 void *session, const xmlChar *ch, int len) {
558 memset( data, 0, len+1 );
559 strncpy( data, (char*) ch, len );
562 //printf( "Handling characters: %s\n", data );
563 transport_session* ses = (transport_session*) session;
564 if( ! ses ) { return; }
566 /* set the various message parts */
567 if( ses->state_machine->in_message ) {
569 if( ses->state_machine->in_message_body ) {
570 buffer_add( ses->body_buffer, data );
573 if( ses->state_machine->in_subject ) {
574 buffer_add( ses->subject_buffer, data );
577 if( ses->state_machine->in_thread ) {
578 buffer_add( ses->thread_buffer, data );
582 /* set the presence status */
583 if( ses->state_machine->in_presence && ses->state_machine->in_status ) {
584 buffer_add( ses->status_buffer, data );
587 if( ses->state_machine->in_error ) {
589 warning_handler( "ERROR Xml fragment: %s\n", ch );
594 /* XXX change to warning handlers */
595 void parseWarningHandler( void *session, const char* msg, ... ) {
599 fprintf(stdout, "transport_session XML WARNING");
600 vfprintf(stdout, msg, args);
602 fprintf(stderr, "XML WARNING: %s\n", msg );
605 void parseErrorHandler( void *session, const char* msg, ... ){
609 fprintf(stdout, "transport_session XML ERROR");
610 vfprintf(stdout, msg, args);
612 fprintf(stderr, "XML ERROR: %s\n", msg );
616 int session_disconnect( transport_session* session ) {
617 if( session == NULL ) { return 0; }
618 //tcp_send( session->sock_obj, "</stream:stream>");
619 socket_send(session->sock_id, "</stream:stream>");
620 socket_disconnect(session->sock_mgr, session->sock_id);
622 //return tcp_disconnect( session->sock_obj );