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source: protocols/msn/ns.c @ 5f8ab6a9

Last change on this file since 5f8ab6a9 was 5f8ab6a9, checked in by Sven Moritz Hallberg <pesco@…>, at 2010-06-03T10:41:03Z
merge in bitlbee 1.2.5
Property mode set to `100644`
File size: 17.5 KB

Line
1	/********************************************************************\
2	* BitlBee -- An IRC to other IM-networks gateway *
3	* *
4	* Copyright 2002-2004 Wilmer van der Gaast and others *
5	\********************************************************************/
6
7	/* MSN module - Notification server callbacks */
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_ns_callback( gpointer data, gint source, b_input_condition cond );
33	static int msn_ns_command( gpointer data, char **cmd, int num_parts );
34	static int msn_ns_message( gpointer data, char msg, int msglen, char *cmd, int num_parts );
35
36	static void msn_auth_got_passport_token( struct msn_auth_data *mad );
37
38	gboolean msn_ns_connected( gpointer data, gint source, b_input_condition cond )
39	{
40	struct im_connection *ic = data;
41	struct msn_data *md;
42	char s[1024];
43
44	if( !g_slist_find( msn_connections, ic ) )
45	return FALSE;
46
47	if( source == -1 )
48	{
49	imcb_error( ic, "Could not connect to server" );
50	imc_logout( ic, TRUE );
51	return FALSE;
52	}
53
54	md = ic->proto_data;
55
56	if( !md->handler )
57	{
58	md->handler = g_new0( struct msn_handler_data, 1 );
59	md->handler->data = ic;
60	md->handler->exec_command = msn_ns_command;
61	md->handler->exec_message = msn_ns_message;
62	}
63	else
64	{
65	if( md->handler->rxq )
66	g_free( md->handler->rxq );
67
68	md->handler->rxlen = 0;
69	}
70
71	md->handler->fd = md->fd;
72	md->handler->rxq = g_new0( char, 1 );
73
74	g_snprintf( s, sizeof( s ), "VER %d MSNP8 CVR0\r\n", ++md->trId );
75	if( msn_write( ic, s, strlen( s ) ) )
76	{
77	ic->inpa = b_input_add( md->fd, GAIM_INPUT_READ, msn_ns_callback, ic );
78	imcb_log( ic, "Connected to server, waiting for reply" );
79	}
80
81	return FALSE;
82	}
83
84	static gboolean msn_ns_callback( gpointer data, gint source, b_input_condition cond )
85	{
86	struct im_connection *ic = data;
87	struct msn_data *md = ic->proto_data;
88
89	if( msn_handler( md->handler ) == -1 ) /* Don't do this on ret == 0, it's already done then. */
90	{
91	imcb_error( ic, "Error while reading from server" );
92	imc_logout( ic, TRUE );
93
94	return FALSE;
95	}
96	else
97	return TRUE;
98	}
99
100	static int msn_ns_command( gpointer data, char **cmd, int num_parts )
101	{
102	struct im_connection *ic = data;
103	struct msn_data *md = ic->proto_data;
104	char buf[1024];
105
106	if( num_parts == 0 )
107	{
108	/* Hrrm... Empty command...? Ignore? */
109	return( 1 );
110	}
111
112	if( strcmp( cmd[0], "VER" ) == 0 )
113	{
114	if( cmd[2] && strncmp( cmd[2], "MSNP8", 5 ) != 0 )
115	{
116	imcb_error( ic, "Unsupported protocol" );
117	imc_logout( ic, FALSE );
118	return( 0 );
119	}
120
121	g_snprintf( buf, sizeof( buf ), "CVR %d 0x0409 mac 10.2.0 ppc macmsgs 3.5.1 macmsgs %s\r\n",
122	++md->trId, ic->acc->user );
123	return( msn_write( ic, buf, strlen( buf ) ) );
124	}
125	else if( strcmp( cmd[0], "CVR" ) == 0 )
126	{
127	/* We don't give a damn about the information we just received */
128	g_snprintf( buf, sizeof( buf ), "USR %d TWN I %s\r\n", ++md->trId, ic->acc->user );
129	return( msn_write( ic, buf, strlen( buf ) ) );
130	}
131	else if( strcmp( cmd[0], "XFR" ) == 0 )
132	{
133	char *server;
134	int port;
135
136	if( num_parts == 6 && strcmp( cmd[2], "NS" ) == 0 )
137	{
138	b_event_remove( ic->inpa );
139	ic->inpa = 0;
140	closesocket( md->fd );
141
142	server = strchr( cmd[3], ':' );
143	if( !server )
144	{
145	imcb_error( ic, "Syntax error" );
146	imc_logout( ic, TRUE );
147	return( 0 );
148	}
149	*server = 0;
150	port = atoi( server + 1 );
151	server = cmd[3];
152
153	imcb_log( ic, "Transferring to other server" );
154
155	md->fd = proxy_connect( server, port, msn_ns_connected, ic );
156	}
157	else if( num_parts == 6 && strcmp( cmd[2], "SB" ) == 0 )
158	{
159	struct msn_switchboard *sb;
160
161	server = strchr( cmd[3], ':' );
162	if( !server )
163	{
164	imcb_error( ic, "Syntax error" );
165	imc_logout( ic, TRUE );
166	return( 0 );
167	}
168	*server = 0;
169	port = atoi( server + 1 );
170	server = cmd[3];
171
172	if( strcmp( cmd[4], "CKI" ) != 0 )
173	{
174	imcb_error( ic, "Unknown authentication method for switchboard" );
175	imc_logout( ic, TRUE );
176	return( 0 );
177	}
178
179	debug( "Connecting to a new switchboard with key %s", cmd[5] );
180
181	if( ( sb = msn_sb_create( ic, server, port, cmd[5], MSN_SB_NEW ) ) == NULL )
182	{
183	/* Although this isn't strictly fatal for the NS connection, it's
184	definitely something serious (we ran out of file descriptors?). */
185	imcb_error( ic, "Could not create new switchboard" );
186	imc_logout( ic, TRUE );
187	return( 0 );
188	}
189
190	if( md->msgq )
191	{
192	struct msn_message *m = md->msgq->data;
193	GSList *l;
194
195	sb->who = g_strdup( m->who );
196
197	/* Move all the messages to the first user in the message
198	queue to the switchboard message queue. */
199	l = md->msgq;
200	while( l )
201	{
202	m = l->data;
203	l = l->next;
204	if( strcmp( m->who, sb->who ) == 0 )
205	{
206	sb->msgq = g_slist_append( sb->msgq, m );
207	md->msgq = g_slist_remove( md->msgq, m );
208	}
209	}
210	}
211	}
212	else
213	{
214	imcb_error( ic, "Syntax error" );
215	imc_logout( ic, TRUE );
216	return( 0 );
217	}
218	}
219	else if( strcmp( cmd[0], "USR" ) == 0 )
220	{
221	if( num_parts == 5 && strcmp( cmd[2], "TWN" ) == 0 && strcmp( cmd[3], "S" ) == 0 )
222	{
223	/* Time for some Passport black magic... */
224	if( !passport_get_token( msn_auth_got_passport_token, ic, ic->acc->user, ic->acc->pass, cmd[4] ) )
225	{
226	imcb_error( ic, "Error while contacting Passport server" );
227	imc_logout( ic, TRUE );
228	return( 0 );
229	}
230	}
231	else if( num_parts >= 7 && strcmp( cmd[2], "OK" ) == 0 )
232	{
233	set_t *s;
234
235	if( num_parts == 7 )
236	{
237	http_decode( cmd[4] );
238
239	strncpy( ic->displayname, cmd[4], sizeof( ic->displayname ) );
240	ic->displayname[sizeof(ic->displayname)-1] = 0;
241
242	if( ( s = set_find( &ic->acc->set, "display_name" ) ) )
243	{
244	g_free( s->value );
245	s->value = g_strdup( cmd[4] );
246	}
247	}
248	else
249	{
250	imcb_log( ic, "Warning: Friendly name in server response was corrupted" );
251	}
252
253	imcb_log( ic, "Authenticated, getting buddy list" );
254
255	g_snprintf( buf, sizeof( buf ), "SYN %d 0\r\n", ++md->trId );
256	return( msn_write( ic, buf, strlen( buf ) ) );
257	}
258	else
259	{
260	imcb_error( ic, "Unknown authentication type" );
261	imc_logout( ic, FALSE );
262	return( 0 );
263	}
264	}
265	else if( strcmp( cmd[0], "MSG" ) == 0 )
266	{
267	if( num_parts != 4 )
268	{
269	imcb_error( ic, "Syntax error" );
270	imc_logout( ic, TRUE );
271	return( 0 );
272	}
273
274	md->handler->msglen = atoi( cmd[3] );
275
276	if( md->handler->msglen <= 0 )
277	{
278	imcb_error( ic, "Syntax error" );
279	imc_logout( ic, TRUE );
280	return( 0 );
281	}
282	}
283	else if( strcmp( cmd[0], "SYN" ) == 0 )
284	{
285	if( num_parts == 5 )
286	{
287	md->buddycount = atoi( cmd[3] );
288	md->groupcount = atoi( cmd[4] );
289	if( md->groupcount > 0 )
290	md->grouplist = g_new0( char *, md->groupcount );
291
292	if( !*cmd[3] \|\| md->buddycount == 0 )
293	msn_logged_in( ic );
294	}
295	else
296	{
297	/* Hrrm... This SYN reply doesn't really look like something we expected.
298	Let's assume everything is okay. */
299
300	msn_logged_in( ic );
301	}
302	}
303	else if( strcmp( cmd[0], "LST" ) == 0 )
304	{
305	int list;
306
307	if( num_parts != 4 && num_parts != 5 )
308	{
309	imcb_error( ic, "Syntax error" );
310	imc_logout( ic, TRUE );
311	return( 0 );
312	}
313
314	http_decode( cmd[2] );
315	list = atoi( cmd[3] );
316
317	if( list & 1 ) /* FL */
318	{
319	char *group = NULL;
320	int num;
321
322	if( cmd[4] != NULL && sscanf( cmd[4], "%d", &num ) == 1 && num < md->groupcount )
323	group = md->grouplist[num];
324
325	imcb_add_buddy( ic, cmd[1], group );
326	imcb_rename_buddy( ic, cmd[1], cmd[2] );
327	}
328	if( list & 2 ) /* AL */
329	{
330	ic->permit = g_slist_append( ic->permit, g_strdup( cmd[1] ) );
331	}
332	if( list & 4 ) /* BL */
333	{
334	ic->deny = g_slist_append( ic->deny, g_strdup( cmd[1] ) );
335	}
336	if( list & 8 ) /* RL */
337	{
338	if( ( list & 6 ) == 0 )
339	msn_buddy_ask( ic, cmd[1], cmd[2] );
340	}
341
342	if( --md->buddycount == 0 )
343	{
344	if( ic->flags & OPT_LOGGED_IN )
345	{
346	imcb_log( ic, "Successfully transferred to different server" );
347	g_snprintf( buf, sizeof( buf ), "CHG %d %s %d\r\n", ++md->trId, md->away_state->code, 0 );
348	return( msn_write( ic, buf, strlen( buf ) ) );
349	}
350	else
351	{
352	msn_logged_in( ic );
353	}
354	}
355	}
356	else if( strcmp( cmd[0], "LSG" ) == 0 )
357	{
358	int num;
359
360	if( num_parts != 4 )
361	{
362	imcb_error( ic, "Syntax error" );
363	imc_logout( ic, TRUE );
364	return( 0 );
365	}
366
367	http_decode( cmd[2] );
368	num = atoi( cmd[1] );
369
370	if( num < md->groupcount )
371	md->grouplist[num] = g_strdup( cmd[2] );
372	}
373	else if( strcmp( cmd[0], "CHL" ) == 0 )
374	{
375	md5_state_t state;
376	md5_byte_t digest[16];
377	int i;
378
379	if( num_parts != 3 )
380	{
381	imcb_error( ic, "Syntax error" );
382	imc_logout( ic, TRUE );
383	return( 0 );
384	}
385
386	md5_init( &state );
387	md5_append( &state, (const md5_byte_t *) cmd[2], strlen( cmd[2] ) );
388	md5_append( &state, (const md5_byte_t *) QRY_CODE, strlen( QRY_CODE ) );
389	md5_finish( &state, digest );
390
391	g_snprintf( buf, sizeof( buf ), "QRY %d %s %d\r\n", ++md->trId, QRY_NAME, 32 );
392	for( i = 0; i < 16; i ++ )
393	g_snprintf( buf + strlen( buf ), 3, "%02x", digest[i] );
394
395	return( msn_write( ic, buf, strlen( buf ) ) );
396	}
397	else if( strcmp( cmd[0], "ILN" ) == 0 )
398	{
399	const struct msn_away_state *st;
400
401	if( num_parts != 6 )
402	{
403	imcb_error( ic, "Syntax error" );
404	imc_logout( ic, TRUE );
405	return( 0 );
406	}
407
408	http_decode( cmd[4] );
409	imcb_rename_buddy( ic, cmd[3], cmd[4] );
410
411	st = msn_away_state_by_code( cmd[2] );
412	if( !st )
413	{
414	/* FIXME: Warn/Bomb about unknown away state? */
415	st = msn_away_state_list + 1;
416	}
417
418	imcb_buddy_status( ic, cmd[3], OPT_LOGGED_IN \|
419	( st != msn_away_state_list ? OPT_AWAY : 0 ),
420	st->name, NULL );
421	}
422	else if( strcmp( cmd[0], "FLN" ) == 0 )
423	{
424	if( cmd[1] )
425	imcb_buddy_status( ic, cmd[1], 0, NULL, NULL );
426	}
427	else if( strcmp( cmd[0], "NLN" ) == 0 )
428	{
429	const struct msn_away_state *st;
430
431	if( num_parts != 5 )
432	{
433	imcb_error( ic, "Syntax error" );
434	imc_logout( ic, TRUE );
435	return( 0 );
436	}
437
438	http_decode( cmd[3] );
439	imcb_rename_buddy( ic, cmd[2], cmd[3] );
440
441	st = msn_away_state_by_code( cmd[1] );
442	if( !st )
443	{
444	/* FIXME: Warn/Bomb about unknown away state? */
445	st = msn_away_state_list + 1;
446	}
447
448	imcb_buddy_status( ic, cmd[2], OPT_LOGGED_IN \|
449	( st != msn_away_state_list ? OPT_AWAY : 0 ),
450	st->name, NULL );
451	}
452	else if( strcmp( cmd[0], "RNG" ) == 0 )
453	{
454	struct msn_switchboard *sb;
455	char *server;
456	int session, port;
457
458	if( num_parts != 7 )
459	{
460	imcb_error( ic, "Syntax error" );
461	imc_logout( ic, TRUE );
462	return( 0 );
463	}
464
465	session = atoi( cmd[1] );
466
467	server = strchr( cmd[2], ':' );
468	if( !server )
469	{
470	imcb_error( ic, "Syntax error" );
471	imc_logout( ic, TRUE );
472	return( 0 );
473	}
474	*server = 0;
475	port = atoi( server + 1 );
476	server = cmd[2];
477
478	if( strcmp( cmd[3], "CKI" ) != 0 )
479	{
480	imcb_error( ic, "Unknown authentication method for switchboard" );
481	imc_logout( ic, TRUE );
482	return( 0 );
483	}
484
485	debug( "Got a call from %s (session %d). Key = %s", cmd[5], session, cmd[4] );
486
487	if( ( sb = msn_sb_create( ic, server, port, cmd[4], session ) ) == NULL )
488	{
489	/* Although this isn't strictly fatal for the NS connection, it's
490	definitely something serious (we ran out of file descriptors?). */
491	imcb_error( ic, "Could not create new switchboard" );
492	imc_logout( ic, TRUE );
493	return( 0 );
494	}
495	else
496	{
497	sb->who = g_strdup( cmd[5] );
498	}
499	}
500	else if( strcmp( cmd[0], "ADD" ) == 0 )
501	{
502	if( num_parts == 6 && strcmp( cmd[2], "RL" ) == 0 )
503	{
504	GSList *l;
505
506	http_decode( cmd[5] );
507
508	if( strchr( cmd[4], '@' ) == NULL )
509	{
510	imcb_error( ic, "Syntax error" );
511	imc_logout( ic, TRUE );
512	return 0;
513	}
514
515	/* We got added by someone. If we don't have this
516	person in permit/deny yet, inform the user. */
517	for( l = ic->permit; l; l = l->next )
518	if( g_strcasecmp( l->data, cmd[4] ) == 0 )
519	return 1;
520
521	for( l = ic->deny; l; l = l->next )
522	if( g_strcasecmp( l->data, cmd[4] ) == 0 )
523	return 1;
524
525	msn_buddy_ask( ic, cmd[4], cmd[5] );
526	}
527	else if( num_parts >= 6 && strcmp( cmd[2], "FL" ) == 0 )
528	{
529	http_decode( cmd[5] );
530	imcb_add_buddy( ic, cmd[4], NULL );
531	imcb_rename_buddy( ic, cmd[4], cmd[5] );
532	}
533	}
534	else if( strcmp( cmd[0], "OUT" ) == 0 )
535	{
536	int allow_reconnect = TRUE;
537
538	if( cmd[1] && strcmp( cmd[1], "OTH" ) == 0 )
539	{
540	imcb_error( ic, "Someone else logged in with your account" );
541	allow_reconnect = FALSE;
542	}
543	else if( cmd[1] && strcmp( cmd[1], "SSD" ) == 0 )
544	{
545	imcb_error( ic, "Terminating session because of server shutdown" );
546	}
547	else
548	{
549	imcb_error( ic, "Session terminated by remote server (reason unknown)" );
550	}
551
552	imc_logout( ic, allow_reconnect );
553	return( 0 );
554	}
555	else if( strcmp( cmd[0], "REA" ) == 0 )
556	{
557	if( num_parts != 5 )
558	{
559	imcb_error( ic, "Syntax error" );
560	imc_logout( ic, TRUE );
561	return( 0 );
562	}
563
564	if( g_strcasecmp( cmd[3], ic->acc->user ) == 0 )
565	{
566	set_t *s;
567
568	http_decode( cmd[4] );
569	strncpy( ic->displayname, cmd[4], sizeof( ic->displayname ) );
570	ic->displayname[sizeof(ic->displayname)-1] = 0;
571
572	if( ( s = set_find( &ic->acc->set, "display_name" ) ) )
573	{
574	g_free( s->value );
575	s->value = g_strdup( cmd[4] );
576	}
577	}
578	else
579	{
580	/* This is not supposed to happen, but let's handle it anyway... */
581	http_decode( cmd[4] );
582	imcb_rename_buddy( ic, cmd[3], cmd[4] );
583	}
584	}
585	else if( strcmp( cmd[0], "IPG" ) == 0 )
586	{
587	imcb_error( ic, "Received IPG command, we don't handle them yet." );
588
589	md->handler->msglen = atoi( cmd[1] );
590
591	if( md->handler->msglen <= 0 )
592	{
593	imcb_error( ic, "Syntax error" );
594	imc_logout( ic, TRUE );
595	return( 0 );
596	}
597	}
598	else if( isdigit( cmd[0][0] ) )
599	{
600	int num = atoi( cmd[0] );
601	const struct msn_status_code *err = msn_status_by_number( num );
602
603	imcb_error( ic, "Error reported by MSN server: %s", err->text );
604
605	if( err->flags & STATUS_FATAL )
606	{
607	imc_logout( ic, TRUE );
608	return( 0 );
609	}
610	}
611	else
612	{
613	/* debug( "Received unknown command from main server: %s", cmd[0] ); */
614	}
615
616	return( 1 );
617	}
618
619	static int msn_ns_message( gpointer data, char msg, int msglen, char *cmd, int num_parts )
620	{
621	struct im_connection *ic = data;
622	char *body;
623	int blen = 0;
624
625	if( !num_parts )
626	return( 1 );
627
628	if( ( body = strstr( msg, "\r\n\r\n" ) ) )
629	{
630	body += 4;
631	blen = msglen - ( body - msg );
632	}
633
634	if( strcmp( cmd[0], "MSG" ) == 0 )
635	{
636	if( g_strcasecmp( cmd[1], "Hotmail" ) == 0 )
637	{
638	char *ct = msn_findheader( msg, "Content-Type:", msglen );
639
640	if( !ct )
641	return( 1 );
642
643	if( g_strncasecmp( ct, "application/x-msmsgssystemmessage", 33 ) == 0 )
644	{
645	char *mtype;
646	char *arg1;
647
648	if( !body )
649	return( 1 );
650
651	mtype = msn_findheader( body, "Type:", blen );
652	arg1 = msn_findheader( body, "Arg1:", blen );
653
654	if( mtype && strcmp( mtype, "1" ) == 0 )
655	{
656	if( arg1 )
657	imcb_log( ic, "The server is going down for maintenance in %s minutes.", arg1 );
658	}
659
660	g_free( arg1 );
661	g_free( mtype );
662	}
663	else if( g_strncasecmp( ct, "text/x-msmsgsprofile", 20 ) == 0 )
664	{
665	/* We don't care about this profile for now... */
666	}
667	else if( g_strncasecmp( ct, "text/x-msmsgsinitialemailnotification", 37 ) == 0 )
668	{
669	if( set_getbool( &ic->acc->set, "mail_notifications" ) )
670	{
671	char *inbox = msn_findheader( body, "Inbox-Unread:", blen );
672	char *folders = msn_findheader( body, "Folders-Unread:", blen );
673
674	if( inbox && folders )
675	imcb_log( ic, "INBOX contains %s new messages, plus %s messages in other folders.", inbox, folders );
676
677	g_free( inbox );
678	g_free( folders );
679	}
680	}
681	else if( g_strncasecmp( ct, "text/x-msmsgsemailnotification", 30 ) == 0 )
682	{
683	if( set_getbool( &ic->acc->set, "mail_notifications" ) )
684	{
685	char *from = msn_findheader( body, "From-Addr:", blen );
686	char *fromname = msn_findheader( body, "From:", blen );
687
688	if( from && fromname )
689	imcb_log( ic, "Received an e-mail message from %s <%s>.", fromname, from );
690
691	g_free( from );
692	g_free( fromname );
693	}
694	}
695	else if( g_strncasecmp( ct, "text/x-msmsgsactivemailnotification", 35 ) == 0 )
696	{
697	/* Sorry, but this one really is USELESS */
698	}
699	else
700	{
701	debug( "Can't handle %s packet from notification server", ct );
702	}
703
704	g_free( ct );
705	}
706	}
707
708	return( 1 );
709	}
710
711	static void msn_auth_got_passport_token( struct msn_auth_data *mad )
712	{
713	struct im_connection *ic = mad->data;
714	struct msn_data *md;
715
716	/* Dead connection? */
717	if( g_slist_find( msn_connections, ic ) == NULL )
718	return;
719
720	md = ic->proto_data;
721	if( mad->token )
722	{
723	char buf[1024];
724
725	g_snprintf( buf, sizeof( buf ), "USR %d TWN S %s\r\n", ++md->trId, mad->token );
726	msn_write( ic, buf, strlen( buf ) );
727	}
728	else
729	{
730	imcb_error( ic, "Error during Passport authentication: %s", mad->error );
731	imc_logout( ic, TRUE );
732	}
733	}

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