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source: protocols/msn/sb.c @ aec56b0

Last change on this file since aec56b0 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

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"
	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;
[1053836]	212
[b7d3cc34]	213	g_free( m->who );
	214	g_free( m->text );
	215	g_free( m );
	216	}
	217	g_slist_free( sb->msgq );
	218
[1053836]	219	serv_got_crap( gc, "Warning: Closing down MSN switchboard connection with "
	220	"unsent message to %s, you'll have to resend it.",
[8ba511d]	221	sb->who ? sb->who : "(unknown)" );
[b7d3cc34]	222	}
	223
[8ba511d]	224	if( sb->key ) g_free( sb->key );
	225	if( sb->who ) g_free( sb->who );
	226
[b7d3cc34]	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] );
[08995b0]	517	const struct msn_status_code *err = msn_status_by_number( num );
[b7d3cc34]	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 );
[6048744]	525	return 0;
[b7d3cc34]	526	}
[6048744]	527	else if( err->flags & STATUS_FATAL )
[b7d3cc34]	528	{
	529	signoff( gc );
[6048744]	530	return 0;
[b7d3cc34]	531	}
[6048744]	532	else if( err->flags & STATUS_SB_IM_SPARE )
[3b9390b]	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	}
[6048744]	555
	556	/* Do NOT return 0 here, we want to keep this sb. */
[3b9390b]	557	}
[b7d3cc34]	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	{
[e7f46c5]	675	serv_got_typing( gc, who, 5, 1 );
[b7d3cc34]	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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