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source: protocols/msn/sb.c @ 42616d1

Last change on this file since 42616d1 was 6048744, checked in by Wilmer van der Gaast <wilmer@…>, at 2006-05-26T13:06:20Z
Added SB_FATAL to MSN errorcode 911 so BitlBee won't disconnect from MSN completely when a switchboard connection sends that error code.
Property mode set to `100644`
File size: 15.3 KB

Line
1	/********************************************************************\
2	* BitlBee -- An IRC to other IM-networks gateway *
3	* *
4	* Copyright 2002-2005 Wilmer van der Gaast and others *
5	\********************************************************************/
6
7	/* MSN module - Switchboard server callbacks and utilities */
8
9	/*
10	This program is free software; you can redistribute it and/or modify
11	it under the terms of the GNU General Public License as published by
12	the Free Software Foundation; either version 2 of the License, or
13	(at your option) any later version.
14
15	This program is distributed in the hope that it will be useful,
16	but WITHOUT ANY WARRANTY; without even the implied warranty of
17	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18	GNU General Public License for more details.
19
20	You should have received a copy of the GNU General Public License with
21	the Debian GNU/Linux distribution in /usr/share/common-licenses/GPL;
22	if not, write to the Free Software Foundation, Inc., 59 Temple Place,
23	Suite 330, Boston, MA 02111-1307 USA
24	*/
25
26	#include <ctype.h>
27	#include "nogaim.h"
28	#include "msn.h"
29	#include "passport.h"
30	#include "md5.h"
31
32	static void msn_sb_callback( gpointer data, gint source, GaimInputCondition cond );
33	static int msn_sb_command( gpointer data, char **cmd, int num_parts );
34	static int msn_sb_message( gpointer data, char msg, int msglen, char *cmd, int num_parts );
35
36	int msn_sb_write( struct msn_switchboard sb, char s, int len )
37	{
38	int st;
39
40	st = write( sb->fd, s, len );
41	if( st != len )
42	{
43	msn_sb_destroy( sb );
44	return( 0 );
45	}
46
47	return( 1 );
48	}
49
50	struct msn_switchboard msn_sb_create( struct gaim_connection gc, char host, int port, char key, int session )
51	{
52	struct msn_data *md = gc->proto_data;
53	struct msn_switchboard *sb = g_new0( struct msn_switchboard, 1 );
54
55	sb->fd = proxy_connect( host, port, msn_sb_connected, sb );
56	if( sb->fd < 0 )
57	{
58	g_free( sb );
59	return( NULL );
60	}
61
62	sb->gc = gc;
63	sb->key = g_strdup( key );
64	sb->session = session;
65
66	msn_switchboards = g_slist_append( msn_switchboards, sb );
67	md->switchboards = g_slist_append( md->switchboards, sb );
68
69	return( sb );
70	}
71
72	struct msn_switchboard msn_sb_by_handle( struct gaim_connection gc, char *handle )
73	{
74	struct msn_data *md = gc->proto_data;
75	struct msn_switchboard *sb;
76	GSList *l;
77
78	for( l = md->switchboards; l; l = l->next )
79	{
80	sb = l->data;
81	if( sb->who && strcmp( sb->who, handle ) == 0 )
82	return( sb );
83	}
84
85	return( NULL );
86	}
87
88	struct msn_switchboard msn_sb_by_id( struct gaim_connection gc, int id )
89	{
90	struct msn_data *md = gc->proto_data;
91	struct msn_switchboard *sb;
92	GSList *l;
93
94	for( l = md->switchboards; l; l = l->next )
95	{
96	sb = l->data;
97	if( sb->chat && sb->chat->id == id )
98	return( sb );
99	}
100
101	return( NULL );
102	}
103
104	struct msn_switchboard msn_sb_spare( struct gaim_connection gc )
105	{
106	struct msn_data *md = gc->proto_data;
107	struct msn_switchboard *sb;
108	GSList *l;
109
110	for( l = md->switchboards; l; l = l->next )
111	{
112	sb = l->data;
113	if( !sb->who && !sb->chat )
114	return( sb );
115	}
116
117	return( NULL );
118	}
119
120	int msn_sb_sendmessage( struct msn_switchboard sb, char text )
121	{
122	if( sb->ready )
123	{
124	char cmd[1024], *buf;
125	int i, j;
126
127	if( strcmp( text, TYPING_NOTIFICATION_MESSAGE ) != 0 )
128	{
129	buf = g_new0( char, sizeof( MSN_MESSAGE_HEADERS ) + strlen( text ) * 2 );
130	i = strlen( MSN_MESSAGE_HEADERS );
131
132	strcpy( buf, MSN_MESSAGE_HEADERS );
133	for( j = 0; text[j]; j ++ )
134	{
135	if( text[j] == '\n' )
136	buf[i++] = '\r';
137
138	buf[i++] = text[j];
139	}
140	}
141	else
142	{
143	i = strlen( MSN_TYPING_HEADERS ) + strlen( sb->gc->username );
144	buf = g_new0( char, strlen( MSN_TYPING_HEADERS ) + strlen( sb->gc->username ) );
145	i = g_snprintf( buf, i, MSN_TYPING_HEADERS, sb->gc->username );
146	}
147
148	g_snprintf( cmd, sizeof( cmd ), "MSG %d N %d\r\n", ++sb->trId, i );
149	if( msn_sb_write( sb, cmd, strlen( cmd ) ) && msn_sb_write( sb, buf, i ) )
150	{
151	g_free( buf );
152	return( 1 );
153	}
154	else
155	{
156	g_free( buf );
157	return( 0 );
158	}
159	}
160	else if( sb->who )
161	{
162	struct msn_message *m = g_new0( struct msn_message, 1 );
163
164	m->who = g_strdup( "" );
165	m->text = g_strdup( text );
166	sb->msgq = g_slist_append( sb->msgq, m );
167
168	return( 1 );
169	}
170	else
171	{
172	return( 0 );
173	}
174	}
175
176	void msn_sb_to_chat( struct msn_switchboard *sb )
177	{
178	struct gaim_connection *gc = sb->gc;
179	char buf[1024];
180
181	/* Create the groupchat structure. */
182	g_snprintf( buf, sizeof( buf ), "MSN groupchat session %d", sb->session );
183	sb->chat = serv_got_joined_chat( gc, ++msn_chat_id, buf );
184
185	/* Populate the channel. */
186	if( sb->who ) add_chat_buddy( sb->chat, sb->who );
187	add_chat_buddy( sb->chat, gc->username );
188
189	/* And make sure the switchboard doesn't look like a regular chat anymore. */
190	if( sb->who )
191	{
192	g_free( sb->who );
193	sb->who = NULL;
194	}
195	}
196
197	void msn_sb_destroy( struct msn_switchboard *sb )
198	{
199	struct gaim_connection *gc = sb->gc;
200	struct msn_data *md = gc->proto_data;
201
202	debug( "Destroying switchboard: %s", sb->who ? sb->who : sb->key ? sb->key : "" );
203
204	if( sb->msgq )
205	{
206	struct msn_message *m;
207	GSList *l;
208
209	for( l = sb->msgq; l; l = l->next )
210	{
211	m = l->data;
212
213	g_free( m->who );
214	g_free( m->text );
215	g_free( m );
216	}
217	g_slist_free( sb->msgq );
218
219	serv_got_crap( gc, "Warning: Closing down MSN switchboard connection with "
220	"unsent message to %s, you'll have to resend it.",
221	sb->who ? sb->who : "(unknown)" );
222	}
223
224	if( sb->key ) g_free( sb->key );
225	if( sb->who ) g_free( sb->who );
226
227	if( sb->chat )
228	{
229	serv_got_chat_left( gc, sb->chat->id );
230	}
231
232	if( sb->handler )
233	{
234	if( sb->handler->rxq ) g_free( sb->handler->rxq );
235	if( sb->handler->cmd_text ) g_free( sb->handler->cmd_text );
236	g_free( sb->handler );
237	}
238
239	if( sb->inp ) gaim_input_remove( sb->inp );
240	closesocket( sb->fd );
241
242	msn_switchboards = g_slist_remove( msn_switchboards, sb );
243	md->switchboards = g_slist_remove( md->switchboards, sb );
244	g_free( sb );
245	}
246
247	void msn_sb_connected( gpointer data, gint source, GaimInputCondition cond )
248	{
249	struct msn_switchboard *sb = data;
250	struct gaim_connection *gc;
251	struct msn_data *md;
252	char buf[1024];
253
254	/* Are we still alive? */
255	if( !g_slist_find( msn_switchboards, sb ) )
256	return;
257
258	gc = sb->gc;
259	md = gc->proto_data;
260
261	if( source != sb->fd )
262	{
263	debug( "ERROR %d while connecting to switchboard server", 1 );
264	msn_sb_destroy( sb );
265	return;
266	}
267
268	/* Prepare the callback */
269	sb->handler = g_new0( struct msn_handler_data, 1 );
270	sb->handler->fd = sb->fd;
271	sb->handler->rxq = g_new0( char, 1 );
272	sb->handler->data = sb;
273	sb->handler->exec_command = msn_sb_command;
274	sb->handler->exec_message = msn_sb_message;
275
276	if( sb->session == MSN_SB_NEW )
277	g_snprintf( buf, sizeof( buf ), "USR %d %s %s\r\n", ++sb->trId, gc->username, sb->key );
278	else
279	g_snprintf( buf, sizeof( buf ), "ANS %d %s %s %d\r\n", ++sb->trId, gc->username, sb->key, sb->session );
280
281	if( msn_sb_write( sb, buf, strlen( buf ) ) )
282	sb->inp = gaim_input_add( sb->fd, GAIM_INPUT_READ, msn_sb_callback, sb );
283	else
284	debug( "ERROR %d while connecting to switchboard server", 2 );
285	}
286
287	static void msn_sb_callback( gpointer data, gint source, GaimInputCondition cond )
288	{
289	struct msn_switchboard *sb = data;
290
291	if( msn_handler( sb->handler ) == -1 )
292	{
293	debug( "ERROR: Switchboard died" );
294	msn_sb_destroy( sb );
295	}
296	}
297
298	static int msn_sb_command( gpointer data, char **cmd, int num_parts )
299	{
300	struct msn_switchboard *sb = data;
301	struct gaim_connection *gc = sb->gc;
302	char buf[1024];
303
304	if( !num_parts )
305	{
306	/* Hrrm... Empty command...? Ignore? */
307	return( 1 );
308	}
309
310	if( strcmp( cmd[0], "XFR" ) == 0 )
311	{
312	hide_login_progress_error( gc, "Received an XFR from a switchboard server, unable to comply! This is likely to be a bug, please report it!" );
313	signoff( gc );
314	return( 0 );
315	}
316	else if( strcmp( cmd[0], "USR" ) == 0 )
317	{
318	if( num_parts != 5 )
319	{
320	msn_sb_destroy( sb );
321	return( 0 );
322	}
323
324	if( strcmp( cmd[2], "OK" ) != 0 )
325	{
326	msn_sb_destroy( sb );
327	return( 0 );
328	}
329
330	if( sb->who )
331	{
332	g_snprintf( buf, sizeof( buf ), "CAL %d %s\r\n", ++sb->trId, sb->who );
333	return( msn_sb_write( sb, buf, strlen( buf ) ) );
334	}
335	else
336	{
337	debug( "Just created a switchboard, but I don't know what to do with it." );
338	}
339	}
340	else if( strcmp( cmd[0], "IRO" ) == 0 )
341	{
342	int num, tot;
343
344	if( num_parts != 6 )
345	{
346	msn_sb_destroy( sb );
347	return( 0 );
348	}
349
350	num = atoi( cmd[2] );
351	tot = atoi( cmd[3] );
352
353	if( tot <= 0 )
354	{
355	msn_sb_destroy( sb );
356	return( 0 );
357	}
358	else if( tot > 1 )
359	{
360	char buf[1024];
361
362	if( num == 1 )
363	{
364	g_snprintf( buf, sizeof( buf ), "MSN groupchat session %d", sb->session );
365	sb->chat = serv_got_joined_chat( gc, ++msn_chat_id, buf );
366
367	g_free( sb->who );
368	sb->who = NULL;
369	}
370
371	add_chat_buddy( sb->chat, cmd[4] );
372
373	if( num == tot )
374	{
375	add_chat_buddy( sb->chat, gc->username );
376	}
377	}
378	}
379	else if( strcmp( cmd[0], "ANS" ) == 0 )
380	{
381	if( num_parts != 3 )
382	{
383	msn_sb_destroy( sb );
384	return( 0 );
385	}
386
387	if( strcmp( cmd[2], "OK" ) != 0 )
388	{
389	debug( "Switchboard server sent a negative ANS reply" );
390	msn_sb_destroy( sb );
391	return( 0 );
392	}
393
394	sb->ready = 1;
395	}
396	else if( strcmp( cmd[0], "CAL" ) == 0 )
397	{
398	if( num_parts != 4 \|\| !isdigit( cmd[3][0] ) )
399	{
400	msn_sb_destroy( sb );
401	return( 0 );
402	}
403
404	sb->session = atoi( cmd[3] );
405	}
406	else if( strcmp( cmd[0], "JOI" ) == 0 )
407	{
408	if( num_parts != 3 )
409	{
410	msn_sb_destroy( sb );
411	return( 0 );
412	}
413
414	if( sb->who && g_strcasecmp( cmd[1], sb->who ) == 0 )
415	{
416	/* The user we wanted to talk to is finally there, let's send the queued messages then. */
417	struct msn_message *m;
418	GSList *l;
419	int st = 1;
420
421	debug( "%s arrived in the switchboard session, now sending queued message(s)", cmd[1] );
422
423	/* Without this, sendmessage() will put everything back on the queue... */
424	sb->ready = 1;
425
426	while( ( l = sb->msgq ) )
427	{
428	m = l->data;
429	if( st )
430	{
431	/* This hack is meant to convert a regular new chat into a groupchat */
432	if( strcmp( m->text, GROUPCHAT_SWITCHBOARD_MESSAGE ) == 0 )
433	msn_sb_to_chat( sb );
434	else
435	st = msn_sb_sendmessage( sb, m->text );
436	}
437	g_free( m->text );
438	g_free( m->who );
439	g_free( m );
440
441	sb->msgq = g_slist_remove( sb->msgq, m );
442	}
443
444	return( st );
445	}
446	else if( sb->who )
447	{
448	debug( "Converting chat with %s to a groupchat because %s joined the session.", sb->who, cmd[1] );
449
450	/* This SB is a one-to-one chat right now, but someone else is joining. */
451	msn_sb_to_chat( sb );
452
453	add_chat_buddy( sb->chat, cmd[1] );
454	}
455	else if( sb->chat )
456	{
457	add_chat_buddy( sb->chat, cmd[1] );
458	sb->ready = 1;
459	}
460	else
461	{
462	/* PANIC! */
463	}
464	}
465	else if( strcmp( cmd[0], "MSG" ) == 0 )
466	{
467	if( num_parts != 4 )
468	{
469	msn_sb_destroy( sb );
470	return( 0 );
471	}
472
473	sb->handler->msglen = atoi( cmd[3] );
474
475	if( sb->handler->msglen <= 0 )
476	{
477	debug( "Received a corrupted message on the switchboard, the switchboard will be closed" );
478	msn_sb_destroy( sb );
479	return( 0 );
480	}
481	}
482	else if( strcmp( cmd[0], "BYE" ) == 0 )
483	{
484	if( num_parts < 2 )
485	{
486	msn_sb_destroy( sb );
487	return( 0 );
488	}
489
490	/* if( cmd[2] && cmd[2] == '1' ) -=> Chat is being cleaned up because of idleness /
491
492	if( sb->who )
493	{
494	/* This is a single-person chat, and the other person is leaving. */
495	g_free( sb->who );
496	sb->who = NULL;
497	sb->ready = 0;
498
499	debug( "Person %s left the one-to-one switchboard connection. Keeping it around as a spare...", cmd[1] );
500
501	/* We could clean up the switchboard now, but keeping it around
502	as a spare for a next conversation sounds more sane to me.
503	The server will clean it up when it's idle for too long. */
504	}
505	else if( sb->chat )
506	{
507	remove_chat_buddy( sb->chat, cmd[1], "" );
508	}
509	else
510	{
511	/* PANIC! */
512	}
513	}
514	else if( isdigit( cmd[0][0] ) )
515	{
516	int num = atoi( cmd[0] );
517	const struct msn_status_code *err = msn_status_by_number( num );
518
519	g_snprintf( buf, sizeof( buf ), "Error reported by switchboard server: %s", err->text );
520	do_error_dialog( gc, buf, "MSN" );
521
522	if( err->flags & STATUS_SB_FATAL )
523	{
524	msn_sb_destroy( sb );
525	return 0;
526	}
527	else if( err->flags & STATUS_FATAL )
528	{
529	signoff( gc );
530	return 0;
531	}
532	else if( err->flags & STATUS_SB_IM_SPARE )
533	{
534	if( sb->who )
535	{
536	struct msn_message *m;
537	GSList *l;
538
539	/* Apparently some invitation failed. We might want to use this
540	board later, so keep it as a spare. */
541	g_free( sb->who );
542	sb->who = NULL;
543
544	/* Also clear the msgq, otherwise someone else might get them. */
545	for( l = sb->msgq; l; l = l->next )
546	{
547	m = l->data;
548	g_free( m->who );
549	g_free( m->text );
550	g_free( m );
551	}
552	g_slist_free( sb->msgq );
553	sb->msgq = NULL;
554	}
555
556	/* Do NOT return 0 here, we want to keep this sb. */
557	}
558	}
559	else
560	{
561	debug( "Received unknown command from switchboard server: %s", cmd[0] );
562	}
563
564	return( 1 );
565	}
566
567	static int msn_sb_message( gpointer data, char msg, int msglen, char *cmd, int num_parts )
568	{
569	struct msn_switchboard *sb = data;
570	struct gaim_connection *gc = sb->gc;
571	char *body;
572	int blen = 0;
573
574	if( !num_parts )
575	return( 1 );
576
577	if( ( body = strstr( msg, "\r\n\r\n" ) ) )
578	{
579	body += 4;
580	blen = msglen - ( body - msg );
581	}
582
583	if( strcmp( cmd[0], "MSG" ) == 0 )
584	{
585	char *ct = msn_findheader( msg, "Content-Type:", msglen );
586
587	if( !ct )
588	return( 1 );
589
590	if( g_strncasecmp( ct, "text/plain", 10 ) == 0 )
591	{
592	g_free( ct );
593
594	if( !body )
595	return( 1 );
596
597	if( sb->who )
598	{
599	serv_got_im( gc, cmd[1], body, 0, 0, blen );
600	}
601	else if( sb->chat )
602	{
603	serv_got_chat_in( gc, sb->chat->id, cmd[1], 0, body, 0 );
604	}
605	else
606	{
607	/* PANIC! */
608	}
609	}
610	else if( g_strncasecmp( ct, "text/x-msmsgsinvite", 19 ) == 0 )
611	{
612	char *itype = msn_findheader( body, "Application-GUID:", blen );
613	char buf[1024];
614
615	g_free( ct );
616
617	*buf = 0;
618
619	if( !itype )
620	return( 1 );
621
622	/* File transfer. */
623	if( strcmp( itype, "{5D3E02AB-6190-11d3-BBBB-00C04F795683}" ) == 0 )
624	{
625	char *name = msn_findheader( body, "Application-File:", blen );
626	char *size = msn_findheader( body, "Application-FileSize:", blen );
627
628	if( name && size )
629	{
630	g_snprintf( buf, sizeof( buf ), "<< \x02""BitlBee\x02"" - Filetransfer: `%s', %s bytes >>\n"
631	"Filetransfers are not supported by BitlBee for now...", name, size );
632	}
633	else
634	{
635	strcpy( buf, "<< \x02""BitlBee\x02"" - Corrupted MSN filetransfer invitation message >>" );
636	}
637
638	if( name ) g_free( name );
639	if( size ) g_free( size );
640	}
641	else
642	{
643	char *iname = msn_findheader( body, "Application-Name:", blen );
644
645	g_snprintf( buf, sizeof( buf ), "<< \x02""BitlBee\x02"" - Unknown MSN invitation - %s (%s) >>",
646	itype, iname ? iname : "no name" );
647
648	if( iname ) g_free( iname );
649	}
650
651	g_free( itype );
652
653	if( !*buf )
654	return( 1 );
655
656	if( sb->who )
657	{
658	serv_got_im( gc, cmd[1], buf, 0, 0, strlen( buf ) );
659	}
660	else if( sb->chat )
661	{
662	serv_got_chat_in( gc, sb->chat->id, cmd[1], 0, buf, 0 );
663	}
664	else
665	{
666	/* PANIC! */
667	}
668	}
669	else if( g_strncasecmp( ct, "text/x-msmsgscontrol", 20 ) == 0 )
670	{
671	char *who = msn_findheader( msg, "TypingUser:", msglen );
672
673	if( who )
674	{
675	serv_got_typing( gc, who, 5, 1 );
676	g_free( who );
677	}
678
679	g_free( ct );
680	}
681	else
682	{
683	g_free( ct );
684	}
685	}
686
687	return( 1 );
688	}

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