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source: protocols/msn/sb.c @ a323a22

Last change on this file since a323a22 was 3b9390b, checked in by Wilmer van der Gaast <wilmer@…>, at 2005-12-18T10:39:13Z
When trying to talk to MSN people who are offline, the switchboard gets reset to a spare correctly. This fixes a problem with messages to MSN people not arriving sometimes.
Property mode set to `100644`
File size: 15.2 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->key ) g_free( sb->key );
	205	if( sb->who ) g_free( sb->who );
	206
	207	if( sb->msgq )
	208	{
	209	struct msn_message *m;
	210	GSList *l;
	211
	212	for( l = sb->msgq; l; l = l->next )
	213	{
	214	m = l->data;
	215	g_free( m->who );
	216	g_free( m->text );
	217	g_free( m );
	218	}
	219	g_slist_free( sb->msgq );
	220
	221	serv_got_crap( gc, "Warning: Closing down MSN switchboard connection with unsent message(s), you'll have to resend them." );
	222	}
	223
	224	if( sb->chat )
	225	{
	226	serv_got_chat_left( gc, sb->chat->id );
	227	}
	228
	229	if( sb->handler )
	230	{
	231	if( sb->handler->rxq ) g_free( sb->handler->rxq );
	232	if( sb->handler->cmd_text ) g_free( sb->handler->cmd_text );
	233	g_free( sb->handler );
	234	}
	235
	236	if( sb->inp ) gaim_input_remove( sb->inp );
	237	closesocket( sb->fd );
	238
	239	msn_switchboards = g_slist_remove( msn_switchboards, sb );
	240	md->switchboards = g_slist_remove( md->switchboards, sb );
	241	g_free( sb );
	242	}
	243
	244	void msn_sb_connected( gpointer data, gint source, GaimInputCondition cond )
	245	{
	246	struct msn_switchboard *sb = data;
	247	struct gaim_connection *gc;
	248	struct msn_data *md;
	249	char buf[1024];
	250
	251	/* Are we still alive? */
	252	if( !g_slist_find( msn_switchboards, sb ) )
	253	return;
	254
	255	gc = sb->gc;
	256	md = gc->proto_data;
	257
	258	if( source != sb->fd )
	259	{
	260	debug( "ERROR %d while connecting to switchboard server", 1 );
	261	msn_sb_destroy( sb );
	262	return;
	263	}
	264
	265	/* Prepare the callback */
	266	sb->handler = g_new0( struct msn_handler_data, 1 );
	267	sb->handler->fd = sb->fd;
	268	sb->handler->rxq = g_new0( char, 1 );
	269	sb->handler->data = sb;
	270	sb->handler->exec_command = msn_sb_command;
	271	sb->handler->exec_message = msn_sb_message;
	272
	273	if( sb->session == MSN_SB_NEW )
	274	g_snprintf( buf, sizeof( buf ), "USR %d %s %s\r\n", ++sb->trId, gc->username, sb->key );
	275	else
	276	g_snprintf( buf, sizeof( buf ), "ANS %d %s %s %d\r\n", ++sb->trId, gc->username, sb->key, sb->session );
	277
	278	if( msn_sb_write( sb, buf, strlen( buf ) ) )
	279	sb->inp = gaim_input_add( sb->fd, GAIM_INPUT_READ, msn_sb_callback, sb );
	280	else
	281	debug( "ERROR %d while connecting to switchboard server", 2 );
	282	}
	283
	284	static void msn_sb_callback( gpointer data, gint source, GaimInputCondition cond )
	285	{
	286	struct msn_switchboard *sb = data;
	287
	288	if( msn_handler( sb->handler ) == -1 )
	289	{
	290	debug( "ERROR: Switchboard died" );
	291	msn_sb_destroy( sb );
	292	}
	293	}
	294
	295	static int msn_sb_command( gpointer data, char **cmd, int num_parts )
	296	{
	297	struct msn_switchboard *sb = data;
	298	struct gaim_connection *gc = sb->gc;
	299	char buf[1024];
	300
	301	if( !num_parts )
	302	{
	303	/* Hrrm... Empty command...? Ignore? */
	304	return( 1 );
	305	}
	306
	307	if( strcmp( cmd[0], "XFR" ) == 0 )
	308	{
	309	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!" );
	310	signoff( gc );
	311	return( 0 );
	312	}
	313	else if( strcmp( cmd[0], "USR" ) == 0 )
	314	{
	315	if( num_parts != 5 )
	316	{
	317	msn_sb_destroy( sb );
	318	return( 0 );
	319	}
	320
	321	if( strcmp( cmd[2], "OK" ) != 0 )
	322	{
	323	msn_sb_destroy( sb );
	324	return( 0 );
	325	}
	326
	327	if( sb->who )
	328	{
	329	g_snprintf( buf, sizeof( buf ), "CAL %d %s\r\n", ++sb->trId, sb->who );
	330	return( msn_sb_write( sb, buf, strlen( buf ) ) );
	331	}
	332	else
	333	{
	334	debug( "Just created a switchboard, but I don't know what to do with it." );
	335	}
	336	}
	337	else if( strcmp( cmd[0], "IRO" ) == 0 )
	338	{
	339	int num, tot;
	340
	341	if( num_parts != 6 )
	342	{
	343	msn_sb_destroy( sb );
	344	return( 0 );
	345	}
	346
	347	num = atoi( cmd[2] );
	348	tot = atoi( cmd[3] );
	349
	350	if( tot <= 0 )
	351	{
	352	msn_sb_destroy( sb );
	353	return( 0 );
	354	}
	355	else if( tot > 1 )
	356	{
	357	char buf[1024];
	358
	359	if( num == 1 )
	360	{
	361	g_snprintf( buf, sizeof( buf ), "MSN groupchat session %d", sb->session );
	362	sb->chat = serv_got_joined_chat( gc, ++msn_chat_id, buf );
	363
	364	g_free( sb->who );
	365	sb->who = NULL;
	366	}
	367
	368	add_chat_buddy( sb->chat, cmd[4] );
	369
	370	if( num == tot )
	371	{
	372	add_chat_buddy( sb->chat, gc->username );
	373	}
	374	}
	375	}
	376	else if( strcmp( cmd[0], "ANS" ) == 0 )
	377	{
	378	if( num_parts != 3 )
	379	{
	380	msn_sb_destroy( sb );
	381	return( 0 );
	382	}
	383
	384	if( strcmp( cmd[2], "OK" ) != 0 )
	385	{
	386	debug( "Switchboard server sent a negative ANS reply" );
	387	msn_sb_destroy( sb );
	388	return( 0 );
	389	}
	390
	391	sb->ready = 1;
	392	}
	393	else if( strcmp( cmd[0], "CAL" ) == 0 )
	394	{
	395	if( num_parts != 4 \|\| !isdigit( cmd[3][0] ) )
	396	{
	397	msn_sb_destroy( sb );
	398	return( 0 );
	399	}
	400
	401	sb->session = atoi( cmd[3] );
	402	}
	403	else if( strcmp( cmd[0], "JOI" ) == 0 )
	404	{
	405	if( num_parts != 3 )
	406	{
	407	msn_sb_destroy( sb );
	408	return( 0 );
	409	}
	410
	411	if( sb->who && g_strcasecmp( cmd[1], sb->who ) == 0 )
	412	{
	413	/* The user we wanted to talk to is finally there, let's send the queued messages then. */
	414	struct msn_message *m;
	415	GSList *l;
	416	int st = 1;
	417
	418	debug( "%s arrived in the switchboard session, now sending queued message(s)", cmd[1] );
	419
	420	/* Without this, sendmessage() will put everything back on the queue... */
	421	sb->ready = 1;
	422
	423	while( ( l = sb->msgq ) )
	424	{
	425	m = l->data;
	426	if( st )
	427	{
	428	/* This hack is meant to convert a regular new chat into a groupchat */
	429	if( strcmp( m->text, GROUPCHAT_SWITCHBOARD_MESSAGE ) == 0 )
	430	msn_sb_to_chat( sb );
	431	else
	432	st = msn_sb_sendmessage( sb, m->text );
	433	}
	434	g_free( m->text );
	435	g_free( m->who );
	436	g_free( m );
	437
	438	sb->msgq = g_slist_remove( sb->msgq, m );
	439	}
	440
	441	return( st );
	442	}
	443	else if( sb->who )
	444	{
	445	debug( "Converting chat with %s to a groupchat because %s joined the session.", sb->who, cmd[1] );
	446
	447	/* This SB is a one-to-one chat right now, but someone else is joining. */
	448	msn_sb_to_chat( sb );
	449
	450	add_chat_buddy( sb->chat, cmd[1] );
	451	}
	452	else if( sb->chat )
	453	{
	454	add_chat_buddy( sb->chat, cmd[1] );
	455	sb->ready = 1;
	456	}
	457	else
	458	{
	459	/* PANIC! */
	460	}
	461	}
	462	else if( strcmp( cmd[0], "MSG" ) == 0 )
	463	{
	464	if( num_parts != 4 )
	465	{
	466	msn_sb_destroy( sb );
	467	return( 0 );
	468	}
	469
	470	sb->handler->msglen = atoi( cmd[3] );
	471
	472	if( sb->handler->msglen <= 0 )
	473	{
	474	debug( "Received a corrupted message on the switchboard, the switchboard will be closed" );
	475	msn_sb_destroy( sb );
	476	return( 0 );
	477	}
	478	}
	479	else if( strcmp( cmd[0], "BYE" ) == 0 )
	480	{
	481	if( num_parts < 2 )
	482	{
	483	msn_sb_destroy( sb );
	484	return( 0 );
	485	}
	486
	487	/* if( cmd[2] && cmd[2] == '1' ) -=> Chat is being cleaned up because of idleness /
	488
	489	if( sb->who )
	490	{
	491	/* This is a single-person chat, and the other person is leaving. */
	492	g_free( sb->who );
	493	sb->who = NULL;
	494	sb->ready = 0;
	495
	496	debug( "Person %s left the one-to-one switchboard connection. Keeping it around as a spare...", cmd[1] );
	497
	498	/* We could clean up the switchboard now, but keeping it around
	499	as a spare for a next conversation sounds more sane to me.
	500	The server will clean it up when it's idle for too long. */
	501	}
	502	else if( sb->chat )
	503	{
	504	remove_chat_buddy( sb->chat, cmd[1], "" );
	505	}
	506	else
	507	{
	508	/* PANIC! */
	509	}
	510	}
	511	else if( isdigit( cmd[0][0] ) )
	512	{
	513	int num = atoi( cmd[0] );
	514	struct msn_status_code *err = msn_status_by_number( num );
	515
	516	g_snprintf( buf, sizeof( buf ), "Error reported by switchboard server: %s", err->text );
	517	do_error_dialog( gc, buf, "MSN" );
	518
	519	if( err->flags & STATUS_SB_FATAL )
	520	{
	521	msn_sb_destroy( sb );
	522	return( 0 );
	523	}
[3b9390b]	524	if( err->flags & STATUS_FATAL )
[b7d3cc34]	525	{
	526	signoff( gc );
	527	return( 0 );
	528	}
[3b9390b]	529	if( err->flags & STATUS_SB_IM_SPARE )
	530	{
	531	if( sb->who )
	532	{
	533	struct msn_message *m;
	534	GSList *l;
	535
	536	/* Apparently some invitation failed. We might want to use this
	537	board later, so keep it as a spare. */
	538	g_free( sb->who );
	539	sb->who = NULL;
	540
	541	/* Also clear the msgq, otherwise someone else might get them. */
	542	for( l = sb->msgq; l; l = l->next )
	543	{
	544	m = l->data;
	545	g_free( m->who );
	546	g_free( m->text );
	547	g_free( m );
	548	}
	549	g_slist_free( sb->msgq );
	550	sb->msgq = NULL;
	551	}
	552	}
[b7d3cc34]	553	}
	554	else
	555	{
	556	debug( "Received unknown command from switchboard server: %s", cmd[0] );
	557	}
	558
	559	return( 1 );
	560	}
	561
	562	static int msn_sb_message( gpointer data, char msg, int msglen, char *cmd, int num_parts )
	563	{
	564	struct msn_switchboard *sb = data;
	565	struct gaim_connection *gc = sb->gc;
	566	char *body;
	567	int blen = 0;
	568
	569	if( !num_parts )
	570	return( 1 );
	571
	572	if( ( body = strstr( msg, "\r\n\r\n" ) ) )
	573	{
	574	body += 4;
	575	blen = msglen - ( body - msg );
	576	}
	577
	578	if( strcmp( cmd[0], "MSG" ) == 0 )
	579	{
	580	char *ct = msn_findheader( msg, "Content-Type:", msglen );
	581
	582	if( !ct )
	583	return( 1 );
	584
	585	if( g_strncasecmp( ct, "text/plain", 10 ) == 0 )
	586	{
	587	g_free( ct );
	588
	589	if( !body )
	590	return( 1 );
	591
	592	if( sb->who )
	593	{
	594	serv_got_im( gc, cmd[1], body, 0, 0, blen );
	595	}
	596	else if( sb->chat )
	597	{
	598	serv_got_chat_in( gc, sb->chat->id, cmd[1], 0, body, 0 );
	599	}
	600	else
	601	{
	602	/* PANIC! */
	603	}
	604	}
	605	else if( g_strncasecmp( ct, "text/x-msmsgsinvite", 19 ) == 0 )
	606	{
	607	char *itype = msn_findheader( body, "Application-GUID:", blen );
	608	char buf[1024];
	609
	610	g_free( ct );
	611
	612	*buf = 0;
	613
	614	if( !itype )
	615	return( 1 );
	616
	617	/* File transfer. */
	618	if( strcmp( itype, "{5D3E02AB-6190-11d3-BBBB-00C04F795683}" ) == 0 )
	619	{
	620	char *name = msn_findheader( body, "Application-File:", blen );
	621	char *size = msn_findheader( body, "Application-FileSize:", blen );
	622
	623	if( name && size )
	624	{
	625	g_snprintf( buf, sizeof( buf ), "<< \x02""BitlBee\x02"" - Filetransfer: `%s', %s bytes >>\n"
	626	"Filetransfers are not supported by BitlBee for now...", name, size );
	627	}
	628	else
	629	{
	630	strcpy( buf, "<< \x02""BitlBee\x02"" - Corrupted MSN filetransfer invitation message >>" );
	631	}
	632
	633	if( name ) g_free( name );
	634	if( size ) g_free( size );
	635	}
	636	else
	637	{
	638	char *iname = msn_findheader( body, "Application-Name:", blen );
	639
	640	g_snprintf( buf, sizeof( buf ), "<< \x02""BitlBee\x02"" - Unknown MSN invitation - %s (%s) >>",
	641	itype, iname ? iname : "no name" );
	642
	643	if( iname ) g_free( iname );
	644	}
	645
	646	g_free( itype );
	647
	648	if( !*buf )
	649	return( 1 );
	650
	651	if( sb->who )
	652	{
	653	serv_got_im( gc, cmd[1], buf, 0, 0, strlen( buf ) );
	654	}
	655	else if( sb->chat )
	656	{
	657	serv_got_chat_in( gc, sb->chat->id, cmd[1], 0, buf, 0 );
	658	}
	659	else
	660	{
	661	/* PANIC! */
	662	}
	663	}
	664	else if( g_strncasecmp( ct, "text/x-msmsgscontrol", 20 ) == 0 )
	665	{
	666	char *who = msn_findheader( msg, "TypingUser:", msglen );
	667
	668	if( who )
	669	{
[e7f46c5]	670	serv_got_typing( gc, who, 5, 1 );
[b7d3cc34]	671	g_free( who );
	672	}
	673
	674	g_free( ct );
	675	}
	676	else
	677	{
	678	g_free( ct );
	679	}
	680	}
	681
	682	return( 1 );
	683	}

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