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source: protocols/msn/sb.c @ 1c40aa7

Last change on this file since 1c40aa7 was 4aa0f6b, checked in by Wilmer van der Gaast <wilmer@…>, at 2010-06-07T14:31:07Z
Merging killerbee stuff, bringing all the bleeding-edge stuff together.
Property mode set to `100644`
File size: 18.6 KB

Rev	Line
[b7d3cc34]	1	/********************************************************************\
	2	* BitlBee -- An IRC to other IM-networks gateway *
	3	* *
[c92e6801]	4	* Copyright 2002-2005 Wilmer van der Gaast and others *
[b7d3cc34]	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"
[a2b99ec]	31	#include "invitation.h"
[b7d3cc34]	32
[ba9edaa]	33	static gboolean msn_sb_callback( gpointer data, gint source, b_input_condition cond );
[b7d3cc34]	34	static int msn_sb_command( gpointer data, char **cmd, int num_parts );
	35	static int msn_sb_message( gpointer data, char msg, int msglen, char *cmd, int num_parts );
	36
	37	int msn_sb_write( struct msn_switchboard sb, char s, int len )
	38	{
	39	int st;
	40
	41	st = write( sb->fd, s, len );
	42	if( st != len )
	43	{
	44	msn_sb_destroy( sb );
	45	return( 0 );
	46	}
	47
	48	return( 1 );
	49	}
	50
[a830512]	51	int msn_sb_write_msg( struct im_connection ic, struct msn_message m )
	52	{
	53	struct msn_data *md = ic->proto_data;
	54	struct msn_switchboard *sb;
	55	char buf[1024];
	56
	57	/* FIXME: CHECK the reliability of using spare sb's! */
	58	if( ( sb = msn_sb_spare( ic ) ) )
	59	{
	60	debug( "Trying to use a spare switchboard to message %s", m->who );
	61
	62	sb->who = g_strdup( m->who );
	63	g_snprintf( buf, sizeof( buf ), "CAL %d %s\r\n", ++sb->trId, m->who );
	64	if( msn_sb_write( sb, buf, strlen( buf ) ) )
	65	{
	66	/* He/She should join the switchboard soon, let's queue the message. */
	67	sb->msgq = g_slist_append( sb->msgq, m );
	68	return( 1 );
	69	}
	70	}
	71
	72	debug( "Creating a new switchboard to message %s", m->who );
	73
	74	/* If we reach this line, there was no spare switchboard, so let's make one. */
	75	g_snprintf( buf, sizeof( buf ), "XFR %d SB\r\n", ++md->trId );
	76	if( !msn_write( ic, buf, strlen( buf ) ) )
	77	{
	78	g_free( m->who );
	79	g_free( m->text );
	80	g_free( m );
	81
	82	return( 0 );
	83	}
	84
	85	/* And queue the message to md. We'll pick it up when the switchboard comes up. */
	86	md->msgq = g_slist_append( md->msgq, m );
	87
	88	/* FIXME: If the switchboard creation fails, the message will not be sent. */
	89
	90	return( 1 );
	91	}
	92
[0da65d5]	93	struct msn_switchboard msn_sb_create( struct im_connection ic, char host, int port, char key, int session )
[b7d3cc34]	94	{
[0da65d5]	95	struct msn_data *md = ic->proto_data;
[b7d3cc34]	96	struct msn_switchboard *sb = g_new0( struct msn_switchboard, 1 );
	97
	98	sb->fd = proxy_connect( host, port, msn_sb_connected, sb );
	99	if( sb->fd < 0 )
	100	{
	101	g_free( sb );
	102	return( NULL );
	103	}
	104
[0da65d5]	105	sb->ic = ic;
[b7d3cc34]	106	sb->key = g_strdup( key );
	107	sb->session = session;
	108
	109	msn_switchboards = g_slist_append( msn_switchboards, sb );
	110	md->switchboards = g_slist_append( md->switchboards, sb );
	111
	112	return( sb );
	113	}
	114
[0da65d5]	115	struct msn_switchboard msn_sb_by_handle( struct im_connection ic, char *handle )
[b7d3cc34]	116	{
[0da65d5]	117	struct msn_data *md = ic->proto_data;
[b7d3cc34]	118	struct msn_switchboard *sb;
	119	GSList *l;
	120
	121	for( l = md->switchboards; l; l = l->next )
	122	{
	123	sb = l->data;
	124	if( sb->who && strcmp( sb->who, handle ) == 0 )
	125	return( sb );
	126	}
	127
	128	return( NULL );
	129	}
	130
[0da65d5]	131	struct msn_switchboard msn_sb_by_chat( struct groupchat c )
[b7d3cc34]	132	{
[0da65d5]	133	struct msn_data *md = c->ic->proto_data;
[b7d3cc34]	134	struct msn_switchboard *sb;
	135	GSList *l;
	136
	137	for( l = md->switchboards; l; l = l->next )
	138	{
	139	sb = l->data;
[fa29d093]	140	if( sb->chat == c )
[b7d3cc34]	141	return( sb );
	142	}
	143
	144	return( NULL );
	145	}
	146
[0da65d5]	147	struct msn_switchboard msn_sb_spare( struct im_connection ic )
[b7d3cc34]	148	{
[0da65d5]	149	struct msn_data *md = ic->proto_data;
[b7d3cc34]	150	struct msn_switchboard *sb;
	151	GSList *l;
	152
	153	for( l = md->switchboards; l; l = l->next )
	154	{
	155	sb = l->data;
	156	if( !sb->who && !sb->chat )
	157	return( sb );
	158	}
	159
	160	return( NULL );
	161	}
	162
	163	int msn_sb_sendmessage( struct msn_switchboard sb, char text )
	164	{
	165	if( sb->ready )
	166	{
[bd28e6a]	167	char packet, buf;
[b7d3cc34]	168	int i, j;
	169
[bd28e6a]	170	/* Build the message. Convert LF to CR-LF for normal messages. */
[a2b99ec]	171	if( strcmp( text, TYPING_NOTIFICATION_MESSAGE ) == 0 )
	172	{
	173	i = strlen( MSN_TYPING_HEADERS ) + strlen( sb->ic->acc->user );
	174	buf = g_new0( char, i );
	175	i = g_snprintf( buf, i, MSN_TYPING_HEADERS, sb->ic->acc->user );
[1c3008a]	176	}
[9bf2481]	177	else if( strcmp( text, SB_KEEPALIVE_MESSAGE ) == 0 )
	178	{
	179	buf = g_strdup( SB_KEEPALIVE_HEADERS );
	180	i = strlen( buf );
	181	}
[1c3008a]	182	else if( strncmp( text, MSN_INVITE_HEADERS, sizeof( MSN_INVITE_HEADERS ) - 1 ) == 0 )
[a2b99ec]	183	{
	184	buf = g_strdup( text );
	185	i = strlen( buf );
[1c3008a]	186	}
	187	else
[b7d3cc34]	188	{
[46dca11]	189	buf = g_new0( char, sizeof( MSN_MESSAGE_HEADERS ) + strlen( text ) * 2 + 1 );
[b7d3cc34]	190	i = strlen( MSN_MESSAGE_HEADERS );
	191
	192	strcpy( buf, MSN_MESSAGE_HEADERS );
	193	for( j = 0; text[j]; j ++ )
	194	{
	195	if( text[j] == '\n' )
	196	buf[i++] = '\r';
	197
	198	buf[i++] = text[j];
	199	}
	200	}
	201
[bd28e6a]	202	/* Build the final packet (MSG command + the message). */
	203	packet = g_strdup_printf( "MSG %d N %d\r\n%s", ++sb->trId, i, buf );
	204	g_free( buf );
	205	if( msn_sb_write( sb, packet, strlen( packet ) ) )
[b7d3cc34]	206	{
[bd28e6a]	207	g_free( packet );
[b7d3cc34]	208	return( 1 );
	209	}
	210	else
	211	{
[bd28e6a]	212	g_free( packet );
[b7d3cc34]	213	return( 0 );
	214	}
	215	}
	216	else if( sb->who )
	217	{
	218	struct msn_message *m = g_new0( struct msn_message, 1 );
	219
	220	m->who = g_strdup( "" );
	221	m->text = g_strdup( text );
	222	sb->msgq = g_slist_append( sb->msgq, m );
	223
	224	return( 1 );
	225	}
	226	else
	227	{
	228	return( 0 );
	229	}
	230	}
	231
[0da65d5]	232	struct groupchat msn_sb_to_chat( struct msn_switchboard sb )
[b7d3cc34]	233	{
[0da65d5]	234	struct im_connection *ic = sb->ic;
[e5abfd4]	235	struct groupchat *c = NULL;
[b7d3cc34]	236	char buf[1024];
	237
	238	/* Create the groupchat structure. */
	239	g_snprintf( buf, sizeof( buf ), "MSN groupchat session %d", sb->session );
[36577aa]	240	if( sb->who )
[e5abfd4]	241	c = bee_chat_by_title( ic->bee, ic, sb->who );
	242	if( c && !msn_sb_by_chat( c ) )
	243	sb->chat = c;
	244	else
[36577aa]	245	sb->chat = imcb_chat_new( ic, buf );
[b7d3cc34]	246
	247	/* Populate the channel. */
[61ae52c]	248	if( sb->who ) imcb_chat_add_buddy( sb->chat, sb->who );
	249	imcb_chat_add_buddy( sb->chat, ic->acc->user );
[b7d3cc34]	250
	251	/* And make sure the switchboard doesn't look like a regular chat anymore. */
	252	if( sb->who )
	253	{
	254	g_free( sb->who );
	255	sb->who = NULL;
	256	}
[fa29d093]	257
	258	return sb->chat;
[b7d3cc34]	259	}
	260
	261	void msn_sb_destroy( struct msn_switchboard *sb )
	262	{
[0da65d5]	263	struct im_connection *ic = sb->ic;
	264	struct msn_data *md = ic->proto_data;
[b7d3cc34]	265
	266	debug( "Destroying switchboard: %s", sb->who ? sb->who : sb->key ? sb->key : "" );
	267
[46dca11]	268	msn_msgq_purge( ic, &sb->msgq );
[bb839e8]	269	msn_sb_stop_keepalives( sb );
[b7d3cc34]	270
[8ba511d]	271	if( sb->key ) g_free( sb->key );
	272	if( sb->who ) g_free( sb->who );
	273
[b7d3cc34]	274	if( sb->chat )
	275	{
[e35d1a1]	276	imcb_chat_free( sb->chat );
[b7d3cc34]	277	}
	278
	279	if( sb->handler )
	280	{
	281	if( sb->handler->rxq ) g_free( sb->handler->rxq );
	282	if( sb->handler->cmd_text ) g_free( sb->handler->cmd_text );
	283	g_free( sb->handler );
	284	}
	285
[ba9edaa]	286	if( sb->inp ) b_event_remove( sb->inp );
[b7d3cc34]	287	closesocket( sb->fd );
	288
	289	msn_switchboards = g_slist_remove( msn_switchboards, sb );
	290	md->switchboards = g_slist_remove( md->switchboards, sb );
	291	g_free( sb );
	292	}
	293
[ba9edaa]	294	gboolean msn_sb_connected( gpointer data, gint source, b_input_condition cond )
[b7d3cc34]	295	{
	296	struct msn_switchboard *sb = data;
[0da65d5]	297	struct im_connection *ic;
[b7d3cc34]	298	struct msn_data *md;
	299	char buf[1024];
	300
	301	/* Are we still alive? */
	302	if( !g_slist_find( msn_switchboards, sb ) )
[ba9edaa]	303	return FALSE;
[b7d3cc34]	304
[0da65d5]	305	ic = sb->ic;
	306	md = ic->proto_data;
[b7d3cc34]	307
	308	if( source != sb->fd )
	309	{
[46dca11]	310	debug( "Error %d while connecting to switchboard server", 1 );
[b7d3cc34]	311	msn_sb_destroy( sb );
[ba9edaa]	312	return FALSE;
[b7d3cc34]	313	}
	314
	315	/* Prepare the callback */
	316	sb->handler = g_new0( struct msn_handler_data, 1 );
	317	sb->handler->fd = sb->fd;
	318	sb->handler->rxq = g_new0( char, 1 );
	319	sb->handler->data = sb;
	320	sb->handler->exec_command = msn_sb_command;
	321	sb->handler->exec_message = msn_sb_message;
	322
	323	if( sb->session == MSN_SB_NEW )
[c2fb3809]	324	g_snprintf( buf, sizeof( buf ), "USR %d %s %s\r\n", ++sb->trId, ic->acc->user, sb->key );
[b7d3cc34]	325	else
[c2fb3809]	326	g_snprintf( buf, sizeof( buf ), "ANS %d %s %s %d\r\n", ++sb->trId, ic->acc->user, sb->key, sb->session );
[b7d3cc34]	327
	328	if( msn_sb_write( sb, buf, strlen( buf ) ) )
[e046390]	329	sb->inp = b_input_add( sb->fd, B_EV_IO_READ, msn_sb_callback, sb );
[b7d3cc34]	330	else
[46dca11]	331	debug( "Error %d while connecting to switchboard server", 2 );
[ba9edaa]	332
	333	return FALSE;
[b7d3cc34]	334	}
	335
[ba9edaa]	336	static gboolean msn_sb_callback( gpointer data, gint source, b_input_condition cond )
[b7d3cc34]	337	{
	338	struct msn_switchboard *sb = data;
[59f527b6]	339	struct im_connection *ic = sb->ic;
	340	struct msn_data *md = ic->proto_data;
[b7d3cc34]	341
[f8cb76d]	342	if( msn_handler( sb->handler ) != -1 )
	343	return TRUE;
	344
	345	if( sb->msgq != NULL )
[b7d3cc34]	346	{
[59f527b6]	347	time_t now = time( NULL );
[f8cb76d]	348	char buf[1024];
[59f527b6]	349
	350	if( now - md->first_sb_failure > 600 )
	351	{
	352	/* It's not really the first one, but the start of this "series".
	353	With this, the warning below will be shown only if this happens
	354	at least three times in ten minutes. This algorithm isn't
	355	perfect, but for this purpose it will do. */
	356	md->first_sb_failure = now;
	357	md->sb_failures = 0;
	358	}
	359
[46dca11]	360	debug( "Error: Switchboard died" );
[59f527b6]	361	if( ++ md->sb_failures >= 3 )
	362	imcb_log( ic, "Warning: Many switchboard failures on MSN connection. "
	363	"There might be problems delivering your messages." );
	364
[f8cb76d]	365	if( md->msgq == NULL )
[59f527b6]	366	{
[f8cb76d]	367	md->msgq = sb->msgq;
	368	}
	369	else
	370	{
	371	GSList *l;
[59f527b6]	372
[f8cb76d]	373	for( l = md->msgq; l->next; l = l->next );
	374	l->next = sb->msgq;
[59f527b6]	375	}
[f8cb76d]	376	sb->msgq = NULL;
[59f527b6]	377
[f8cb76d]	378	debug( "Moved queued messages back to the main queue, "
	379	"creating a new switchboard to retry." );
	380	g_snprintf( buf, sizeof( buf ), "XFR %d SB\r\n", ++md->trId );
	381	if( !msn_write( ic, buf, strlen( buf ) ) )
	382	return FALSE;
[59f527b6]	383	}
[f8cb76d]	384
	385	msn_sb_destroy( sb );
	386	return FALSE;
[b7d3cc34]	387	}
	388
	389	static int msn_sb_command( gpointer data, char **cmd, int num_parts )
	390	{
	391	struct msn_switchboard *sb = data;
[0da65d5]	392	struct im_connection *ic = sb->ic;
[b7d3cc34]	393	char buf[1024];
	394
	395	if( !num_parts )
	396	{
	397	/* Hrrm... Empty command...? Ignore? */
	398	return( 1 );
	399	}
	400
	401	if( strcmp( cmd[0], "XFR" ) == 0 )
	402	{
[84b045d]	403	imcb_error( ic, "Received an XFR from a switchboard server, unable to comply! This is likely to be a bug, please report it!" );
[c2fb3809]	404	imc_logout( ic, TRUE );
[b7d3cc34]	405	return( 0 );
	406	}
	407	else if( strcmp( cmd[0], "USR" ) == 0 )
	408	{
	409	if( num_parts != 5 )
	410	{
	411	msn_sb_destroy( sb );
	412	return( 0 );
	413	}
	414
	415	if( strcmp( cmd[2], "OK" ) != 0 )
	416	{
	417	msn_sb_destroy( sb );
	418	return( 0 );
	419	}
	420
	421	if( sb->who )
	422	{
	423	g_snprintf( buf, sizeof( buf ), "CAL %d %s\r\n", ++sb->trId, sb->who );
	424	return( msn_sb_write( sb, buf, strlen( buf ) ) );
	425	}
	426	else
	427	{
	428	debug( "Just created a switchboard, but I don't know what to do with it." );
	429	}
	430	}
	431	else if( strcmp( cmd[0], "IRO" ) == 0 )
	432	{
	433	int num, tot;
	434
	435	if( num_parts != 6 )
	436	{
	437	msn_sb_destroy( sb );
	438	return( 0 );
	439	}
	440
	441	num = atoi( cmd[2] );
	442	tot = atoi( cmd[3] );
	443
	444	if( tot <= 0 )
	445	{
	446	msn_sb_destroy( sb );
	447	return( 0 );
	448	}
	449	else if( tot > 1 )
	450	{
	451	char buf[1024];
	452
	453	if( num == 1 )
	454	{
	455	g_snprintf( buf, sizeof( buf ), "MSN groupchat session %d", sb->session );
[61ae52c]	456	sb->chat = imcb_chat_new( ic, buf );
[b7d3cc34]	457
	458	g_free( sb->who );
	459	sb->who = NULL;
	460	}
	461
[61ae52c]	462	imcb_chat_add_buddy( sb->chat, cmd[4] );
[b7d3cc34]	463
	464	if( num == tot )
	465	{
[61ae52c]	466	imcb_chat_add_buddy( sb->chat, ic->acc->user );
[b7d3cc34]	467	}
	468	}
	469	}
	470	else if( strcmp( cmd[0], "ANS" ) == 0 )
	471	{
	472	if( num_parts != 3 )
	473	{
	474	msn_sb_destroy( sb );
	475	return( 0 );
	476	}
	477
	478	if( strcmp( cmd[2], "OK" ) != 0 )
	479	{
	480	debug( "Switchboard server sent a negative ANS reply" );
	481	msn_sb_destroy( sb );
	482	return( 0 );
	483	}
	484
	485	sb->ready = 1;
[bb839e8]	486
	487	msn_sb_start_keepalives( sb, FALSE );
[b7d3cc34]	488	}
	489	else if( strcmp( cmd[0], "CAL" ) == 0 )
	490	{
	491	if( num_parts != 4 \|\| !isdigit( cmd[3][0] ) )
	492	{
	493	msn_sb_destroy( sb );
	494	return( 0 );
	495	}
	496
	497	sb->session = atoi( cmd[3] );
	498	}
	499	else if( strcmp( cmd[0], "JOI" ) == 0 )
	500	{
	501	if( num_parts != 3 )
	502	{
	503	msn_sb_destroy( sb );
	504	return( 0 );
	505	}
	506
	507	if( sb->who && g_strcasecmp( cmd[1], sb->who ) == 0 )
	508	{
	509	/* The user we wanted to talk to is finally there, let's send the queued messages then. */
	510	struct msn_message *m;
	511	GSList *l;
	512	int st = 1;
	513
	514	debug( "%s arrived in the switchboard session, now sending queued message(s)", cmd[1] );
	515
	516	/* Without this, sendmessage() will put everything back on the queue... */
	517	sb->ready = 1;
	518
	519	while( ( l = sb->msgq ) )
	520	{
	521	m = l->data;
	522	if( st )
	523	{
	524	/* This hack is meant to convert a regular new chat into a groupchat */
	525	if( strcmp( m->text, GROUPCHAT_SWITCHBOARD_MESSAGE ) == 0 )
	526	msn_sb_to_chat( sb );
	527	else
	528	st = msn_sb_sendmessage( sb, m->text );
	529	}
	530	g_free( m->text );
	531	g_free( m->who );
	532	g_free( m );
	533
	534	sb->msgq = g_slist_remove( sb->msgq, m );
	535	}
	536
[bb839e8]	537	msn_sb_start_keepalives( sb, FALSE );
	538
[b7d3cc34]	539	return( st );
	540	}
	541	else if( sb->who )
	542	{
	543	debug( "Converting chat with %s to a groupchat because %s joined the session.", sb->who, cmd[1] );
	544
	545	/* This SB is a one-to-one chat right now, but someone else is joining. */
	546	msn_sb_to_chat( sb );
	547
[61ae52c]	548	imcb_chat_add_buddy( sb->chat, cmd[1] );
[b7d3cc34]	549	}
	550	else if( sb->chat )
	551	{
[61ae52c]	552	imcb_chat_add_buddy( sb->chat, cmd[1] );
[b7d3cc34]	553	sb->ready = 1;
	554	}
	555	else
	556	{
	557	/* PANIC! */
	558	}
	559	}
	560	else if( strcmp( cmd[0], "MSG" ) == 0 )
	561	{
	562	if( num_parts != 4 )
	563	{
	564	msn_sb_destroy( sb );
	565	return( 0 );
	566	}
	567
	568	sb->handler->msglen = atoi( cmd[3] );
	569
	570	if( sb->handler->msglen <= 0 )
	571	{
	572	debug( "Received a corrupted message on the switchboard, the switchboard will be closed" );
	573	msn_sb_destroy( sb );
	574	return( 0 );
	575	}
	576	}
[3585c5a]	577	else if( strcmp( cmd[0], "NAK" ) == 0 )
	578	{
	579	if( sb->who )
	580	{
	581	imcb_log( ic, "The MSN servers could not deliver one of your messages to %s.", sb->who );
	582	}
	583	else
	584	{
	585	imcb_log( ic, "The MSN servers could not deliver one of your groupchat messages to all participants." );
	586	}
	587	}
[b7d3cc34]	588	else if( strcmp( cmd[0], "BYE" ) == 0 )
	589	{
	590	if( num_parts < 2 )
	591	{
	592	msn_sb_destroy( sb );
	593	return( 0 );
	594	}
	595
	596	/* if( cmd[2] && cmd[2] == '1' ) -=> Chat is being cleaned up because of idleness /
	597
	598	if( sb->who )
	599	{
[bb839e8]	600	msn_sb_stop_keepalives( sb );
	601
[b7d3cc34]	602	/* This is a single-person chat, and the other person is leaving. */
	603	g_free( sb->who );
	604	sb->who = NULL;
	605	sb->ready = 0;
	606
	607	debug( "Person %s left the one-to-one switchboard connection. Keeping it around as a spare...", cmd[1] );
	608
	609	/* We could clean up the switchboard now, but keeping it around
	610	as a spare for a next conversation sounds more sane to me.
	611	The server will clean it up when it's idle for too long. */
	612	}
	613	else if( sb->chat )
	614	{
[61ae52c]	615	imcb_chat_remove_buddy( sb->chat, cmd[1], "" );
[b7d3cc34]	616	}
	617	else
	618	{
	619	/* PANIC! */
	620	}
	621	}
	622	else if( isdigit( cmd[0][0] ) )
	623	{
	624	int num = atoi( cmd[0] );
[08995b0]	625	const struct msn_status_code *err = msn_status_by_number( num );
[b7d3cc34]	626
[84b045d]	627	imcb_error( ic, "Error reported by switchboard server: %s", err->text );
[b7d3cc34]	628
	629	if( err->flags & STATUS_SB_FATAL )
	630	{
	631	msn_sb_destroy( sb );
[6048744]	632	return 0;
[b7d3cc34]	633	}
[6048744]	634	else if( err->flags & STATUS_FATAL )
[b7d3cc34]	635	{
[c2fb3809]	636	imc_logout( ic, TRUE );
[6048744]	637	return 0;
[b7d3cc34]	638	}
[6048744]	639	else if( err->flags & STATUS_SB_IM_SPARE )
[3b9390b]	640	{
	641	if( sb->who )
	642	{
	643	/* Apparently some invitation failed. We might want to use this
	644	board later, so keep it as a spare. */
	645	g_free( sb->who );
	646	sb->who = NULL;
	647
	648	/* Also clear the msgq, otherwise someone else might get them. */
[46dca11]	649	msn_msgq_purge( ic, &sb->msgq );
[3b9390b]	650	}
[6048744]	651
	652	/* Do NOT return 0 here, we want to keep this sb. */
[3b9390b]	653	}
[b7d3cc34]	654	}
	655	else
	656	{
[8ff0a61]	657	/* debug( "Received unknown command from switchboard server: %s", cmd[0] ); */
[b7d3cc34]	658	}
	659
	660	return( 1 );
	661	}
	662
	663	static int msn_sb_message( gpointer data, char msg, int msglen, char *cmd, int num_parts )
	664	{
	665	struct msn_switchboard *sb = data;
[0da65d5]	666	struct im_connection *ic = sb->ic;
[b7d3cc34]	667	char *body;
	668	int blen = 0;
	669
	670	if( !num_parts )
	671	return( 1 );
	672
	673	if( ( body = strstr( msg, "\r\n\r\n" ) ) )
	674	{
	675	body += 4;
	676	blen = msglen - ( body - msg );
	677	}
	678
	679	if( strcmp( cmd[0], "MSG" ) == 0 )
	680	{
	681	char *ct = msn_findheader( msg, "Content-Type:", msglen );
	682
	683	if( !ct )
	684	return( 1 );
	685
	686	if( g_strncasecmp( ct, "text/plain", 10 ) == 0 )
	687	{
	688	g_free( ct );
	689
	690	if( !body )
	691	return( 1 );
	692
	693	if( sb->who )
	694	{
[9624fdf]	695	imcb_buddy_msg( ic, cmd[1], body, 0, 0 );
[b7d3cc34]	696	}
	697	else if( sb->chat )
	698	{
[61ae52c]	699	imcb_chat_msg( sb->chat, cmd[1], body, 0, 0 );
[b7d3cc34]	700	}
	701	else
	702	{
	703	/* PANIC! */
	704	}
	705	}
[17a6ee9]	706	#if 0
	707	// Disable MSN ft support for now.
[b7d3cc34]	708	else if( g_strncasecmp( ct, "text/x-msmsgsinvite", 19 ) == 0 )
	709	{
[a2b99ec]	710	char *command = msn_findheader( body, "Invitation-Command:", blen );
	711	char *cookie = msn_findheader( body, "Invitation-Cookie:", blen );
	712	unsigned int icookie;
[b7d3cc34]	713
	714	g_free( ct );
	715
[a2b99ec]	716	/* Every invite should have both a Command and Cookie header */
	717	if( !command \|\| !cookie ) {
	718	g_free( command );
	719	g_free( cookie );
	720	imcb_log( ic, "Warning: No command or cookie from %s", sb->who );
	721	return 1;
[b7d3cc34]	722	}
	723
[a2b99ec]	724	icookie = strtoul( cookie, NULL, 10 );
	725	g_free( cookie );
[b7d3cc34]	726
[a2b99ec]	727	if( g_strncasecmp( command, "INVITE", 6 ) == 0 ) {
	728	msn_invitation_invite( sb, cmd[1], icookie, body, blen );
	729	} else if( g_strncasecmp( command, "ACCEPT", 6 ) == 0 ) {
	730	msn_invitation_accept( sb, cmd[1], icookie, body, blen );
	731	} else if( g_strncasecmp( command, "CANCEL", 6 ) == 0 ) {
	732	msn_invitation_cancel( sb, cmd[1], icookie, body, blen );
	733	} else {
	734	imcb_log( ic, "Warning: Received invalid invitation with "
	735	"command %s from %s", command, sb->who );
[b7d3cc34]	736	}
[a2b99ec]	737
	738	g_free( command );
	739	}
[17a6ee9]	740	#endif
[a2b99ec]	741	else if( g_strncasecmp( ct, "application/x-msnmsgrp2p", 24 ) == 0 )
	742	{
	743	imcb_error( sb->ic, "Cannot receive file from %s: BitlBee does not "
	744	"support msnmsgrp2p yet.", sb->who );
	745	g_free( ct );
[b7d3cc34]	746	}
	747	else if( g_strncasecmp( ct, "text/x-msmsgscontrol", 20 ) == 0 )
	748	{
	749	char *who = msn_findheader( msg, "TypingUser:", msglen );
	750
	751	if( who )
	752	{
[9624fdf]	753	imcb_buddy_typing( ic, who, OPT_TYPING );
[b7d3cc34]	754	g_free( who );
	755	}
	756
	757	g_free( ct );
	758	}
	759	else
	760	{
	761	g_free( ct );
	762	}
	763	}
	764
	765	return( 1 );
	766	}
[9bf2481]	767
[bb839e8]	768	static gboolean msn_sb_keepalive( gpointer data, gint source, b_input_condition cond )
[9bf2481]	769	{
	770	struct msn_switchboard *sb = data;
	771	return sb->ready && msn_sb_sendmessage( sb, SB_KEEPALIVE_MESSAGE );
	772	}
[bb839e8]	773
	774	void msn_sb_start_keepalives( struct msn_switchboard *sb, gboolean initial )
	775	{
[f924563]	776	bee_user_t *bu;
[bb839e8]	777
	778	if( sb && sb->who && sb->keepalive == 0 &&
[f924563]	779	( bu = bee_user_by_handle( sb->ic->bee, sb->ic, sb->who ) ) &&
	780	!( bu->flags & BEE_USER_ONLINE ) &&
[bb839e8]	781	set_getbool( &sb->ic->acc->set, "switchboard_keepalives" ) )
	782	{
	783	if( initial )
	784	msn_sb_keepalive( sb, 0, 0 );
	785
	786	sb->keepalive = b_timeout_add( 20000, msn_sb_keepalive, sb );
	787	}
	788	}
	789
	790	void msn_sb_stop_keepalives( struct msn_switchboard *sb )
	791	{
	792	if( sb && sb->keepalive > 0 )
	793	{
	794	b_event_remove( sb->keepalive );
	795	sb->keepalive = 0;
	796	}
	797	}

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