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source: protocols/msn/sb.c @ cdca30b

Last change on this file since cdca30b was ba9edaa, checked in by Wilmer van der Gaast <wilmer@…>, at 2006-05-10T17:34:46Z
Moved everything to the BitlBee event handling API.
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 gboolean msn_sb_callback( gpointer data, gint source, b_input_condition 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 ) b_event_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	gboolean msn_sb_connected( gpointer data, gint source, b_input_condition 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 FALSE;
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 FALSE;
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 = b_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	return FALSE;
287	}
288
289	static gboolean msn_sb_callback( gpointer data, gint source, b_input_condition cond )
290	{
291	struct msn_switchboard *sb = data;
292
293	if( msn_handler( sb->handler ) == -1 )
294	{
295	debug( "ERROR: Switchboard died" );
296	msn_sb_destroy( sb );
297
298	return FALSE;
299	}
300	else
301	return TRUE;
302	}
303
304	static int msn_sb_command( gpointer data, char **cmd, int num_parts )
305	{
306	struct msn_switchboard *sb = data;
307	struct gaim_connection *gc = sb->gc;
308	char buf[1024];
309
310	if( !num_parts )
311	{
312	/* Hrrm... Empty command...? Ignore? */
313	return( 1 );
314	}
315
316	if( strcmp( cmd[0], "XFR" ) == 0 )
317	{
318	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!" );
319	signoff( gc );
320	return( 0 );
321	}
322	else if( strcmp( cmd[0], "USR" ) == 0 )
323	{
324	if( num_parts != 5 )
325	{
326	msn_sb_destroy( sb );
327	return( 0 );
328	}
329
330	if( strcmp( cmd[2], "OK" ) != 0 )
331	{
332	msn_sb_destroy( sb );
333	return( 0 );
334	}
335
336	if( sb->who )
337	{
338	g_snprintf( buf, sizeof( buf ), "CAL %d %s\r\n", ++sb->trId, sb->who );
339	return( msn_sb_write( sb, buf, strlen( buf ) ) );
340	}
341	else
342	{
343	debug( "Just created a switchboard, but I don't know what to do with it." );
344	}
345	}
346	else if( strcmp( cmd[0], "IRO" ) == 0 )
347	{
348	int num, tot;
349
350	if( num_parts != 6 )
351	{
352	msn_sb_destroy( sb );
353	return( 0 );
354	}
355
356	num = atoi( cmd[2] );
357	tot = atoi( cmd[3] );
358
359	if( tot <= 0 )
360	{
361	msn_sb_destroy( sb );
362	return( 0 );
363	}
364	else if( tot > 1 )
365	{
366	char buf[1024];
367
368	if( num == 1 )
369	{
370	g_snprintf( buf, sizeof( buf ), "MSN groupchat session %d", sb->session );
371	sb->chat = serv_got_joined_chat( gc, ++msn_chat_id, buf );
372
373	g_free( sb->who );
374	sb->who = NULL;
375	}
376
377	add_chat_buddy( sb->chat, cmd[4] );
378
379	if( num == tot )
380	{
381	add_chat_buddy( sb->chat, gc->username );
382	}
383	}
384	}
385	else if( strcmp( cmd[0], "ANS" ) == 0 )
386	{
387	if( num_parts != 3 )
388	{
389	msn_sb_destroy( sb );
390	return( 0 );
391	}
392
393	if( strcmp( cmd[2], "OK" ) != 0 )
394	{
395	debug( "Switchboard server sent a negative ANS reply" );
396	msn_sb_destroy( sb );
397	return( 0 );
398	}
399
400	sb->ready = 1;
401	}
402	else if( strcmp( cmd[0], "CAL" ) == 0 )
403	{
404	if( num_parts != 4 \|\| !isdigit( cmd[3][0] ) )
405	{
406	msn_sb_destroy( sb );
407	return( 0 );
408	}
409
410	sb->session = atoi( cmd[3] );
411	}
412	else if( strcmp( cmd[0], "JOI" ) == 0 )
413	{
414	if( num_parts != 3 )
415	{
416	msn_sb_destroy( sb );
417	return( 0 );
418	}
419
420	if( sb->who && g_strcasecmp( cmd[1], sb->who ) == 0 )
421	{
422	/* The user we wanted to talk to is finally there, let's send the queued messages then. */
423	struct msn_message *m;
424	GSList *l;
425	int st = 1;
426
427	debug( "%s arrived in the switchboard session, now sending queued message(s)", cmd[1] );
428
429	/* Without this, sendmessage() will put everything back on the queue... */
430	sb->ready = 1;
431
432	while( ( l = sb->msgq ) )
433	{
434	m = l->data;
435	if( st )
436	{
437	/* This hack is meant to convert a regular new chat into a groupchat */
438	if( strcmp( m->text, GROUPCHAT_SWITCHBOARD_MESSAGE ) == 0 )
439	msn_sb_to_chat( sb );
440	else
441	st = msn_sb_sendmessage( sb, m->text );
442	}
443	g_free( m->text );
444	g_free( m->who );
445	g_free( m );
446
447	sb->msgq = g_slist_remove( sb->msgq, m );
448	}
449
450	return( st );
451	}
452	else if( sb->who )
453	{
454	debug( "Converting chat with %s to a groupchat because %s joined the session.", sb->who, cmd[1] );
455
456	/* This SB is a one-to-one chat right now, but someone else is joining. */
457	msn_sb_to_chat( sb );
458
459	add_chat_buddy( sb->chat, cmd[1] );
460	}
461	else if( sb->chat )
462	{
463	add_chat_buddy( sb->chat, cmd[1] );
464	sb->ready = 1;
465	}
466	else
467	{
468	/* PANIC! */
469	}
470	}
471	else if( strcmp( cmd[0], "MSG" ) == 0 )
472	{
473	if( num_parts != 4 )
474	{
475	msn_sb_destroy( sb );
476	return( 0 );
477	}
478
479	sb->handler->msglen = atoi( cmd[3] );
480
481	if( sb->handler->msglen <= 0 )
482	{
483	debug( "Received a corrupted message on the switchboard, the switchboard will be closed" );
484	msn_sb_destroy( sb );
485	return( 0 );
486	}
487	}
488	else if( strcmp( cmd[0], "BYE" ) == 0 )
489	{
490	if( num_parts < 2 )
491	{
492	msn_sb_destroy( sb );
493	return( 0 );
494	}
495
496	/* if( cmd[2] && cmd[2] == '1' ) -=> Chat is being cleaned up because of idleness /
497
498	if( sb->who )
499	{
500	/* This is a single-person chat, and the other person is leaving. */
501	g_free( sb->who );
502	sb->who = NULL;
503	sb->ready = 0;
504
505	debug( "Person %s left the one-to-one switchboard connection. Keeping it around as a spare...", cmd[1] );
506
507	/* We could clean up the switchboard now, but keeping it around
508	as a spare for a next conversation sounds more sane to me.
509	The server will clean it up when it's idle for too long. */
510	}
511	else if( sb->chat )
512	{
513	remove_chat_buddy( sb->chat, cmd[1], "" );
514	}
515	else
516	{
517	/* PANIC! */
518	}
519	}
520	else if( isdigit( cmd[0][0] ) )
521	{
522	int num = atoi( cmd[0] );
523	const struct msn_status_code *err = msn_status_by_number( num );
524
525	g_snprintf( buf, sizeof( buf ), "Error reported by switchboard server: %s", err->text );
526	do_error_dialog( gc, buf, "MSN" );
527
528	if( err->flags & STATUS_SB_FATAL )
529	{
530	msn_sb_destroy( sb );
531	return( 0 );
532	}
533	if( err->flags & STATUS_FATAL )
534	{
535	signoff( gc );
536	return( 0 );
537	}
538	if( err->flags & STATUS_SB_IM_SPARE )
539	{
540	if( sb->who )
541	{
542	struct msn_message *m;
543	GSList *l;
544
545	/* Apparently some invitation failed. We might want to use this
546	board later, so keep it as a spare. */
547	g_free( sb->who );
548	sb->who = NULL;
549
550	/* Also clear the msgq, otherwise someone else might get them. */
551	for( l = sb->msgq; l; l = l->next )
552	{
553	m = l->data;
554	g_free( m->who );
555	g_free( m->text );
556	g_free( m );
557	}
558	g_slist_free( sb->msgq );
559	sb->msgq = NULL;
560	}
561	}
562	}
563	else
564	{
565	debug( "Received unknown command from switchboard server: %s", cmd[0] );
566	}
567
568	return( 1 );
569	}
570
571	static int msn_sb_message( gpointer data, char msg, int msglen, char *cmd, int num_parts )
572	{
573	struct msn_switchboard *sb = data;
574	struct gaim_connection *gc = sb->gc;
575	char *body;
576	int blen = 0;
577
578	if( !num_parts )
579	return( 1 );
580
581	if( ( body = strstr( msg, "\r\n\r\n" ) ) )
582	{
583	body += 4;
584	blen = msglen - ( body - msg );
585	}
586
587	if( strcmp( cmd[0], "MSG" ) == 0 )
588	{
589	char *ct = msn_findheader( msg, "Content-Type:", msglen );
590
591	if( !ct )
592	return( 1 );
593
594	if( g_strncasecmp( ct, "text/plain", 10 ) == 0 )
595	{
596	g_free( ct );
597
598	if( !body )
599	return( 1 );
600
601	if( sb->who )
602	{
603	serv_got_im( gc, cmd[1], body, 0, 0, blen );
604	}
605	else if( sb->chat )
606	{
607	serv_got_chat_in( gc, sb->chat->id, cmd[1], 0, body, 0 );
608	}
609	else
610	{
611	/* PANIC! */
612	}
613	}
614	else if( g_strncasecmp( ct, "text/x-msmsgsinvite", 19 ) == 0 )
615	{
616	char *itype = msn_findheader( body, "Application-GUID:", blen );
617	char buf[1024];
618
619	g_free( ct );
620
621	*buf = 0;
622
623	if( !itype )
624	return( 1 );
625
626	/* File transfer. */
627	if( strcmp( itype, "{5D3E02AB-6190-11d3-BBBB-00C04F795683}" ) == 0 )
628	{
629	char *name = msn_findheader( body, "Application-File:", blen );
630	char *size = msn_findheader( body, "Application-FileSize:", blen );
631
632	if( name && size )
633	{
634	g_snprintf( buf, sizeof( buf ), "<< \x02""BitlBee\x02"" - Filetransfer: `%s', %s bytes >>\n"
635	"Filetransfers are not supported by BitlBee for now...", name, size );
636	}
637	else
638	{
639	strcpy( buf, "<< \x02""BitlBee\x02"" - Corrupted MSN filetransfer invitation message >>" );
640	}
641
642	if( name ) g_free( name );
643	if( size ) g_free( size );
644	}
645	else
646	{
647	char *iname = msn_findheader( body, "Application-Name:", blen );
648
649	g_snprintf( buf, sizeof( buf ), "<< \x02""BitlBee\x02"" - Unknown MSN invitation - %s (%s) >>",
650	itype, iname ? iname : "no name" );
651
652	if( iname ) g_free( iname );
653	}
654
655	g_free( itype );
656
657	if( !*buf )
658	return( 1 );
659
660	if( sb->who )
661	{
662	serv_got_im( gc, cmd[1], buf, 0, 0, strlen( buf ) );
663	}
664	else if( sb->chat )
665	{
666	serv_got_chat_in( gc, sb->chat->id, cmd[1], 0, buf, 0 );
667	}
668	else
669	{
670	/* PANIC! */
671	}
672	}
673	else if( g_strncasecmp( ct, "text/x-msmsgscontrol", 20 ) == 0 )
674	{
675	char *who = msn_findheader( msg, "TypingUser:", msglen );
676
677	if( who )
678	{
679	serv_got_typing( gc, who, 5, 1 );
680	g_free( who );
681	}
682
683	g_free( ct );
684	}
685	else
686	{
687	g_free( ct );
688	}
689	}
690
691	return( 1 );
692	}

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