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source: protocols/msn/ns.c @ 1dd3470

Last change on this file since 1dd3470 was 814aa52, checked in by Sven Moritz Hallberg <pesco@…>, at 2010-06-03T11:00:45Z
merge in bitlbee 1.2.6
Property mode set to `100644`
File size: 18.8 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	static gboolean msn_ns_got_display_name( struct im_connection ic, char name );
38
39	gboolean msn_ns_connected( gpointer data, gint source, b_input_condition cond )
40	{
41	struct im_connection *ic = data;
42	struct msn_data *md;
43	char s[1024];
44
45	if( !g_slist_find( msn_connections, ic ) )
46	return FALSE;
47
48	if( source == -1 )
49	{
50	imcb_error( ic, "Could not connect to server" );
51	imc_logout( ic, TRUE );
52	return FALSE;
53	}
54
55	md = ic->proto_data;
56
57	if( !md->handler )
58	{
59	md->handler = g_new0( struct msn_handler_data, 1 );
60	md->handler->data = ic;
61	md->handler->exec_command = msn_ns_command;
62	md->handler->exec_message = msn_ns_message;
63	}
64	else
65	{
66	if( md->handler->rxq )
67	g_free( md->handler->rxq );
68
69	md->handler->rxlen = 0;
70	}
71
72	md->handler->fd = md->fd;
73	md->handler->rxq = g_new0( char, 1 );
74
75	g_snprintf( s, sizeof( s ), "VER %d MSNP8 CVR0\r\n", ++md->trId );
76	if( msn_write( ic, s, strlen( s ) ) )
77	{
78	ic->inpa = b_input_add( md->fd, GAIM_INPUT_READ, msn_ns_callback, ic );
79	imcb_log( ic, "Connected to server, waiting for reply" );
80	}
81
82	return FALSE;
83	}
84
85	static gboolean msn_ns_callback( gpointer data, gint source, b_input_condition cond )
86	{
87	struct im_connection *ic = data;
88	struct msn_data *md = ic->proto_data;
89
90	if( msn_handler( md->handler ) == -1 ) /* Don't do this on ret == 0, it's already done then. */
91	{
92	imcb_error( ic, "Error while reading from server" );
93	imc_logout( ic, TRUE );
94
95	return FALSE;
96	}
97	else
98	return TRUE;
99	}
100
101	static int msn_ns_command( gpointer data, char **cmd, int num_parts )
102	{
103	struct im_connection *ic = data;
104	struct msn_data *md = ic->proto_data;
105	char buf[1024];
106
107	if( num_parts == 0 )
108	{
109	/* Hrrm... Empty command...? Ignore? */
110	return( 1 );
111	}
112
113	if( strcmp( cmd[0], "VER" ) == 0 )
114	{
115	if( cmd[2] && strncmp( cmd[2], "MSNP8", 5 ) != 0 )
116	{
117	imcb_error( ic, "Unsupported protocol" );
118	imc_logout( ic, FALSE );
119	return( 0 );
120	}
121
122	g_snprintf( buf, sizeof( buf ), "CVR %d 0x0409 mac 10.2.0 ppc macmsgs 3.5.1 macmsgs %s\r\n",
123	++md->trId, ic->acc->user );
124	return( msn_write( ic, buf, strlen( buf ) ) );
125	}
126	else if( strcmp( cmd[0], "CVR" ) == 0 )
127	{
128	/* We don't give a damn about the information we just received */
129	g_snprintf( buf, sizeof( buf ), "USR %d TWN I %s\r\n", ++md->trId, ic->acc->user );
130	return( msn_write( ic, buf, strlen( buf ) ) );
131	}
132	else if( strcmp( cmd[0], "XFR" ) == 0 )
133	{
134	char *server;
135	int port;
136
137	if( num_parts == 6 && strcmp( cmd[2], "NS" ) == 0 )
138	{
139	b_event_remove( ic->inpa );
140	ic->inpa = 0;
141	closesocket( md->fd );
142
143	server = strchr( cmd[3], ':' );
144	if( !server )
145	{
146	imcb_error( ic, "Syntax error" );
147	imc_logout( ic, TRUE );
148	return( 0 );
149	}
150	*server = 0;
151	port = atoi( server + 1 );
152	server = cmd[3];
153
154	imcb_log( ic, "Transferring to other server" );
155
156	md->fd = proxy_connect( server, port, msn_ns_connected, ic );
157	}
158	else if( num_parts == 6 && strcmp( cmd[2], "SB" ) == 0 )
159	{
160	struct msn_switchboard *sb;
161
162	server = strchr( cmd[3], ':' );
163	if( !server )
164	{
165	imcb_error( ic, "Syntax error" );
166	imc_logout( ic, TRUE );
167	return( 0 );
168	}
169	*server = 0;
170	port = atoi( server + 1 );
171	server = cmd[3];
172
173	if( strcmp( cmd[4], "CKI" ) != 0 )
174	{
175	imcb_error( ic, "Unknown authentication method for switchboard" );
176	imc_logout( ic, TRUE );
177	return( 0 );
178	}
179
180	debug( "Connecting to a new switchboard with key %s", cmd[5] );
181
182	if( ( sb = msn_sb_create( ic, server, port, cmd[5], MSN_SB_NEW ) ) == NULL )
183	{
184	/* Although this isn't strictly fatal for the NS connection, it's
185	definitely something serious (we ran out of file descriptors?). */
186	imcb_error( ic, "Could not create new switchboard" );
187	imc_logout( ic, TRUE );
188	return( 0 );
189	}
190
191	if( md->msgq )
192	{
193	struct msn_message *m = md->msgq->data;
194	GSList *l;
195
196	sb->who = g_strdup( m->who );
197
198	/* Move all the messages to the first user in the message
199	queue to the switchboard message queue. */
200	l = md->msgq;
201	while( l )
202	{
203	m = l->data;
204	l = l->next;
205	if( strcmp( m->who, sb->who ) == 0 )
206	{
207	sb->msgq = g_slist_append( sb->msgq, m );
208	md->msgq = g_slist_remove( md->msgq, m );
209	}
210	}
211	}
212	}
213	else
214	{
215	imcb_error( ic, "Syntax error" );
216	imc_logout( ic, TRUE );
217	return( 0 );
218	}
219	}
220	else if( strcmp( cmd[0], "USR" ) == 0 )
221	{
222	if( num_parts == 5 && strcmp( cmd[2], "TWN" ) == 0 && strcmp( cmd[3], "S" ) == 0 )
223	{
224	/* Time for some Passport black magic... */
225	if( !passport_get_token( msn_auth_got_passport_token, ic, ic->acc->user, ic->acc->pass, cmd[4] ) )
226	{
227	imcb_error( ic, "Error while contacting Passport server" );
228	imc_logout( ic, TRUE );
229	return( 0 );
230	}
231	}
232	else if( num_parts >= 7 && strcmp( cmd[2], "OK" ) == 0 )
233	{
234	if( num_parts == 7 )
235	msn_ns_got_display_name( ic, cmd[4] );
236	else
237	imcb_log( ic, "Warning: Friendly name in server response was corrupted" );
238
239	imcb_log( ic, "Authenticated, getting buddy list" );
240
241	g_snprintf( buf, sizeof( buf ), "SYN %d 0\r\n", ++md->trId );
242	return( msn_write( ic, buf, strlen( buf ) ) );
243	}
244	else
245	{
246	imcb_error( ic, "Unknown authentication type" );
247	imc_logout( ic, FALSE );
248	return( 0 );
249	}
250	}
251	else if( strcmp( cmd[0], "MSG" ) == 0 )
252	{
253	if( num_parts != 4 )
254	{
255	imcb_error( ic, "Syntax error" );
256	imc_logout( ic, TRUE );
257	return( 0 );
258	}
259
260	md->handler->msglen = atoi( cmd[3] );
261
262	if( md->handler->msglen <= 0 )
263	{
264	imcb_error( ic, "Syntax error" );
265	imc_logout( ic, TRUE );
266	return( 0 );
267	}
268	}
269	else if( strcmp( cmd[0], "SYN" ) == 0 )
270	{
271	if( num_parts == 5 )
272	{
273	md->buddycount = atoi( cmd[3] );
274	md->groupcount = atoi( cmd[4] );
275	if( md->groupcount > 0 )
276	md->grouplist = g_new0( char *, md->groupcount );
277
278	if( !*cmd[3] \|\| md->buddycount == 0 )
279	msn_logged_in( ic );
280	}
281	else
282	{
283	/* Hrrm... This SYN reply doesn't really look like something we expected.
284	Let's assume everything is okay. */
285
286	msn_logged_in( ic );
287	}
288	}
289	else if( strcmp( cmd[0], "LST" ) == 0 )
290	{
291	int list;
292
293	if( num_parts != 4 && num_parts != 5 )
294	{
295	imcb_error( ic, "Syntax error" );
296	imc_logout( ic, TRUE );
297	return( 0 );
298	}
299
300	http_decode( cmd[2] );
301	list = atoi( cmd[3] );
302
303	if( list & 1 ) /* FL */
304	{
305	char *group = NULL;
306	int num;
307
308	if( cmd[4] != NULL && sscanf( cmd[4], "%d", &num ) == 1 && num < md->groupcount )
309	group = md->grouplist[num];
310
311	imcb_add_buddy( ic, cmd[1], group );
312	imcb_rename_buddy( ic, cmd[1], cmd[2] );
313	}
314	if( list & 2 ) /* AL */
315	{
316	ic->permit = g_slist_append( ic->permit, g_strdup( cmd[1] ) );
317	}
318	if( list & 4 ) /* BL */
319	{
320	ic->deny = g_slist_append( ic->deny, g_strdup( cmd[1] ) );
321	}
322	if( list & 8 ) /* RL */
323	{
324	if( ( list & 6 ) == 0 )
325	msn_buddy_ask( ic, cmd[1], cmd[2] );
326	}
327
328	if( --md->buddycount == 0 )
329	{
330	if( ic->flags & OPT_LOGGED_IN )
331	{
332	imcb_log( ic, "Successfully transferred to different server" );
333	g_snprintf( buf, sizeof( buf ), "CHG %d %s %d\r\n", ++md->trId, md->away_state->code, 0 );
334	return( msn_write( ic, buf, strlen( buf ) ) );
335	}
336	else
337	{
338	msn_logged_in( ic );
339	}
340	}
341	}
342	else if( strcmp( cmd[0], "LSG" ) == 0 )
343	{
344	int num;
345
346	if( num_parts != 4 )
347	{
348	imcb_error( ic, "Syntax error" );
349	imc_logout( ic, TRUE );
350	return( 0 );
351	}
352
353	http_decode( cmd[2] );
354	num = atoi( cmd[1] );
355
356	if( num < md->groupcount )
357	md->grouplist[num] = g_strdup( cmd[2] );
358	}
359	else if( strcmp( cmd[0], "CHL" ) == 0 )
360	{
361	md5_state_t state;
362	md5_byte_t digest[16];
363	int i;
364
365	if( num_parts != 3 )
366	{
367	imcb_error( ic, "Syntax error" );
368	imc_logout( ic, TRUE );
369	return( 0 );
370	}
371
372	md5_init( &state );
373	md5_append( &state, (const md5_byte_t *) cmd[2], strlen( cmd[2] ) );
374	md5_append( &state, (const md5_byte_t *) QRY_CODE, strlen( QRY_CODE ) );
375	md5_finish( &state, digest );
376
377	g_snprintf( buf, sizeof( buf ), "QRY %d %s %d\r\n", ++md->trId, QRY_NAME, 32 );
378	for( i = 0; i < 16; i ++ )
379	g_snprintf( buf + strlen( buf ), 3, "%02x", digest[i] );
380
381	return( msn_write( ic, buf, strlen( buf ) ) );
382	}
383	else if( strcmp( cmd[0], "ILN" ) == 0 )
384	{
385	const struct msn_away_state *st;
386
387	if( num_parts != 6 )
388	{
389	imcb_error( ic, "Syntax error" );
390	imc_logout( ic, TRUE );
391	return( 0 );
392	}
393
394	http_decode( cmd[4] );
395	imcb_rename_buddy( ic, cmd[3], cmd[4] );
396
397	st = msn_away_state_by_code( cmd[2] );
398	if( !st )
399	{
400	/* FIXME: Warn/Bomb about unknown away state? */
401	st = msn_away_state_list + 1;
402	}
403
404	imcb_buddy_status( ic, cmd[3], OPT_LOGGED_IN \|
405	( st != msn_away_state_list ? OPT_AWAY : 0 ),
406	st->name, NULL );
407	}
408	else if( strcmp( cmd[0], "FLN" ) == 0 )
409	{
410	if( cmd[1] == NULL )
411	return 1;
412
413	imcb_buddy_status( ic, cmd[1], 0, NULL, NULL );
414
415	msn_sb_start_keepalives( msn_sb_by_handle( ic, cmd[1] ), TRUE );
416	}
417	else if( strcmp( cmd[0], "NLN" ) == 0 )
418	{
419	const struct msn_away_state *st;
420
421	if( num_parts != 5 )
422	{
423	imcb_error( ic, "Syntax error" );
424	imc_logout( ic, TRUE );
425	return( 0 );
426	}
427
428	http_decode( cmd[3] );
429	imcb_rename_buddy( ic, cmd[2], cmd[3] );
430
431	st = msn_away_state_by_code( cmd[1] );
432	if( !st )
433	{
434	/* FIXME: Warn/Bomb about unknown away state? */
435	st = msn_away_state_list + 1;
436	}
437
438	imcb_buddy_status( ic, cmd[2], OPT_LOGGED_IN \|
439	( st != msn_away_state_list ? OPT_AWAY : 0 ),
440	st->name, NULL );
441
442	msn_sb_stop_keepalives( msn_sb_by_handle( ic, cmd[2] ) );
443	}
444	else if( strcmp( cmd[0], "RNG" ) == 0 )
445	{
446	struct msn_switchboard *sb;
447	char *server;
448	int session, port;
449
450	if( num_parts != 7 )
451	{
452	imcb_error( ic, "Syntax error" );
453	imc_logout( ic, TRUE );
454	return( 0 );
455	}
456
457	session = atoi( cmd[1] );
458
459	server = strchr( cmd[2], ':' );
460	if( !server )
461	{
462	imcb_error( ic, "Syntax error" );
463	imc_logout( ic, TRUE );
464	return( 0 );
465	}
466	*server = 0;
467	port = atoi( server + 1 );
468	server = cmd[2];
469
470	if( strcmp( cmd[3], "CKI" ) != 0 )
471	{
472	imcb_error( ic, "Unknown authentication method for switchboard" );
473	imc_logout( ic, TRUE );
474	return( 0 );
475	}
476
477	debug( "Got a call from %s (session %d). Key = %s", cmd[5], session, cmd[4] );
478
479	if( ( sb = msn_sb_create( ic, server, port, cmd[4], session ) ) == NULL )
480	{
481	/* Although this isn't strictly fatal for the NS connection, it's
482	definitely something serious (we ran out of file descriptors?). */
483	imcb_error( ic, "Could not create new switchboard" );
484	imc_logout( ic, TRUE );
485	return( 0 );
486	}
487	else
488	{
489	sb->who = g_strdup( cmd[5] );
490	}
491	}
492	else if( strcmp( cmd[0], "ADD" ) == 0 )
493	{
494	if( num_parts == 6 && strcmp( cmd[2], "RL" ) == 0 )
495	{
496	GSList *l;
497
498	http_decode( cmd[5] );
499
500	if( strchr( cmd[4], '@' ) == NULL )
501	{
502	imcb_error( ic, "Syntax error" );
503	imc_logout( ic, TRUE );
504	return 0;
505	}
506
507	/* We got added by someone. If we don't have this
508	person in permit/deny yet, inform the user. */
509	for( l = ic->permit; l; l = l->next )
510	if( g_strcasecmp( l->data, cmd[4] ) == 0 )
511	return 1;
512
513	for( l = ic->deny; l; l = l->next )
514	if( g_strcasecmp( l->data, cmd[4] ) == 0 )
515	return 1;
516
517	msn_buddy_ask( ic, cmd[4], cmd[5] );
518	}
519	else if( num_parts >= 6 && strcmp( cmd[2], "FL" ) == 0 )
520	{
521	http_decode( cmd[5] );
522	imcb_add_buddy( ic, cmd[4], NULL );
523	imcb_rename_buddy( ic, cmd[4], cmd[5] );
524	}
525	}
526	else if( strcmp( cmd[0], "OUT" ) == 0 )
527	{
528	int allow_reconnect = TRUE;
529
530	if( cmd[1] && strcmp( cmd[1], "OTH" ) == 0 )
531	{
532	imcb_error( ic, "Someone else logged in with your account" );
533	allow_reconnect = FALSE;
534	}
535	else if( cmd[1] && strcmp( cmd[1], "SSD" ) == 0 )
536	{
537	imcb_error( ic, "Terminating session because of server shutdown" );
538	}
539	else
540	{
541	imcb_error( ic, "Session terminated by remote server (reason unknown)" );
542	}
543
544	imc_logout( ic, allow_reconnect );
545	return( 0 );
546	}
547	#if 0
548	/* Discard this one completely for now since I don't care about the ack
549	and since MSN servers can apparently screw up the formatting. */
550	else if( strcmp( cmd[0], "REA" ) == 0 )
551	{
552	if( num_parts != 5 )
553	{
554	imcb_error( ic, "Syntax error" );
555	imc_logout( ic, TRUE );
556	return( 0 );
557	}
558
559	if( g_strcasecmp( cmd[3], ic->acc->user ) == 0 )
560	{
561	set_t *s;
562
563	http_decode( cmd[4] );
564	strncpy( ic->displayname, cmd[4], sizeof( ic->displayname ) );
565	ic->displayname[sizeof(ic->displayname)-1] = 0;
566
567	if( ( s = set_find( &ic->acc->set, "display_name" ) ) )
568	{
569	g_free( s->value );
570	s->value = g_strdup( cmd[4] );
571	}
572	}
573	else
574	{
575	/* This is not supposed to happen, but let's handle it anyway... */
576	http_decode( cmd[4] );
577	imcb_rename_buddy( ic, cmd[3], cmd[4] );
578	}
579	}
580	#endif
581	else if( strcmp( cmd[0], "IPG" ) == 0 )
582	{
583	imcb_error( ic, "Received IPG command, we don't handle them yet." );
584
585	md->handler->msglen = atoi( cmd[1] );
586
587	if( md->handler->msglen <= 0 )
588	{
589	imcb_error( ic, "Syntax error" );
590	imc_logout( ic, TRUE );
591	return( 0 );
592	}
593	}
594	else if( isdigit( cmd[0][0] ) )
595	{
596	int num = atoi( cmd[0] );
597	const struct msn_status_code *err = msn_status_by_number( num );
598
599	imcb_error( ic, "Error reported by MSN server: %s", err->text );
600
601	if( err->flags & STATUS_FATAL )
602	{
603	imc_logout( ic, TRUE );
604	return( 0 );
605	}
606	}
607	else
608	{
609	/* debug( "Received unknown command from main server: %s", cmd[0] ); */
610	}
611
612	return( 1 );
613	}
614
615	static int msn_ns_message( gpointer data, char msg, int msglen, char *cmd, int num_parts )
616	{
617	struct im_connection *ic = data;
618	char *body;
619	int blen = 0;
620
621	if( !num_parts )
622	return( 1 );
623
624	if( ( body = strstr( msg, "\r\n\r\n" ) ) )
625	{
626	body += 4;
627	blen = msglen - ( body - msg );
628	}
629
630	if( strcmp( cmd[0], "MSG" ) == 0 )
631	{
632	if( g_strcasecmp( cmd[1], "Hotmail" ) == 0 )
633	{
634	char *ct = msn_findheader( msg, "Content-Type:", msglen );
635
636	if( !ct )
637	return( 1 );
638
639	if( g_strncasecmp( ct, "application/x-msmsgssystemmessage", 33 ) == 0 )
640	{
641	char *mtype;
642	char *arg1;
643
644	if( !body )
645	return( 1 );
646
647	mtype = msn_findheader( body, "Type:", blen );
648	arg1 = msn_findheader( body, "Arg1:", blen );
649
650	if( mtype && strcmp( mtype, "1" ) == 0 )
651	{
652	if( arg1 )
653	imcb_log( ic, "The server is going down for maintenance in %s minutes.", arg1 );
654	}
655
656	g_free( arg1 );
657	g_free( mtype );
658	}
659	else if( g_strncasecmp( ct, "text/x-msmsgsprofile", 20 ) == 0 )
660	{
661	/* We don't care about this profile for now... */
662	}
663	else if( g_strncasecmp( ct, "text/x-msmsgsinitialemailnotification", 37 ) == 0 )
664	{
665	if( set_getbool( &ic->acc->set, "mail_notifications" ) )
666	{
667	char *inbox = msn_findheader( body, "Inbox-Unread:", blen );
668	char *folders = msn_findheader( body, "Folders-Unread:", blen );
669
670	if( inbox && folders )
671	imcb_log( ic, "INBOX contains %s new messages, plus %s messages in other folders.", inbox, folders );
672
673	g_free( inbox );
674	g_free( folders );
675	}
676	}
677	else if( g_strncasecmp( ct, "text/x-msmsgsemailnotification", 30 ) == 0 )
678	{
679	if( set_getbool( &ic->acc->set, "mail_notifications" ) )
680	{
681	char *from = msn_findheader( body, "From-Addr:", blen );
682	char *fromname = msn_findheader( body, "From:", blen );
683
684	if( from && fromname )
685	imcb_log( ic, "Received an e-mail message from %s <%s>.", fromname, from );
686
687	g_free( from );
688	g_free( fromname );
689	}
690	}
691	else if( g_strncasecmp( ct, "text/x-msmsgsactivemailnotification", 35 ) == 0 )
692	{
693	/* Sorry, but this one really is USELESS */
694	}
695	else
696	{
697	debug( "Can't handle %s packet from notification server", ct );
698	}
699
700	g_free( ct );
701	}
702	}
703
704	return( 1 );
705	}
706
707	static void msn_auth_got_passport_token( struct msn_auth_data *mad )
708	{
709	struct im_connection *ic = mad->data;
710	struct msn_data *md;
711
712	/* Dead connection? */
713	if( g_slist_find( msn_connections, ic ) == NULL )
714	return;
715
716	md = ic->proto_data;
717	if( mad->token )
718	{
719	char buf[1024];
720
721	g_snprintf( buf, sizeof( buf ), "USR %d TWN S %s\r\n", ++md->trId, mad->token );
722	msn_write( ic, buf, strlen( buf ) );
723	}
724	else
725	{
726	imcb_error( ic, "Error during Passport authentication: %s", mad->error );
727	imc_logout( ic, TRUE );
728	}
729	}
730
731	static gboolean msn_ns_got_display_name( struct im_connection ic, char name )
732	{
733	set_t *s;
734
735	if( ( s = set_find( &ic->acc->set, "display_name" ) ) == NULL )
736	return FALSE; /* Shouldn't happen.. */
737
738	http_decode( name );
739
740	if( s->value && strcmp( s->value, name ) == 0 )
741	{
742	return TRUE;
743	/* The names match, nothing to worry about. */
744	}
745	else if( s->value != NULL &&
746	( strcmp( name, ic->acc->user ) == 0 \|\|
747	set_getbool( &ic->acc->set, "local_display_name" ) ) )
748	{
749	/* The server thinks our display name is our e-mail address
750	which is probably wrong, or the user wants us to do this:
751	Always use the locally set display_name. */
752	return msn_set_display_name( ic, s->value );
753	}
754	else
755	{
756	if( s->value && *s->value )
757	imcb_log( ic, "BitlBee thinks your display name is `%s' but "
758	"the MSN server says it's `%s'. Using the MSN "
759	"server's name. Set local_display_name to true "
760	"to use the local name.", s->value, name );
761
762	if( g_utf8_validate( name, -1, NULL ) )
763	{
764	g_free( s->value );
765	s->value = g_strdup( name );
766	}
767	else
768	{
769	imcb_log( ic, "Warning: Friendly name in server response was corrupted" );
770	}
771
772	return TRUE;
773	}
774	}

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