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source: protocols/jabber/conference.c @ ba86713

Last change on this file since ba86713 was fc0640e, checked in by Wilmer van der Gaast <wilmer@…>, at 2012-02-10T18:00:00Z

Support for "nameless" chatrooms on Jabber.

Just join #somechannel and start inviting people. It should Just Work,
like on other IM networks. Works at least with GTalk and with other
servers that have conference stuff installed on conference.$servername.

Property mode set to 100644

File size: 12.4 KB

Rev	Line
[e35d1a1]	1	/***************************************************************************\
	2	* *
	3	* BitlBee - An IRC to IM gateway *
	4	* Jabber module - Conference rooms *
	5	* *
	6	* Copyright 2007 Wilmer van der Gaast <wilmer@gaast.net> *
	7	* *
	8	* This program is free software; you can redistribute it and/or modify *
	9	* it under the terms of the GNU General Public License as published by *
	10	* the Free Software Foundation; either version 2 of the License, or *
	11	* (at your option) any later version. *
	12	* *
	13	* This program is distributed in the hope that it will be useful, *
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of *
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
	16	* GNU General Public License for more details. *
	17	* *
	18	* You should have received a copy of the GNU General Public License along *
	19	* with this program; if not, write to the Free Software Foundation, Inc., *
	20	* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
	21	* *
	22	\***************************************************************************/
	23
	24	#include "jabber.h"
[fc0640e]	25	#include "sha1.h"
[e35d1a1]	26
[5bd21df]	27	static xt_status jabber_chat_join_failed( struct im_connection ic, struct xt_node node, struct xt_node *orig );
	28
[94acdd0]	29	struct groupchat jabber_chat_join( struct im_connection ic, const char room, const char nick, const char *password )
[e35d1a1]	30	{
	31	struct jabber_chat *jc;
	32	struct xt_node *node;
	33	struct groupchat *c;
	34	char *roomjid;
	35
	36	roomjid = g_strdup_printf( "%s/%s", room, nick );
	37	node = xt_new_node( "x", NULL, NULL );
	38	xt_add_attr( node, "xmlns", XMLNS_MUC );
[3038e47]	39	if( password )
	40	xt_add_child( node, xt_new_node( "password", password, NULL ) );
[b2c062d]	41	node = jabber_make_packet( "presence", NULL, roomjid, node );
[5bd21df]	42	jabber_cache_add( ic, node, jabber_chat_join_failed );
[e35d1a1]	43
	44	if( !jabber_write_packet( ic, node ) )
	45	{
	46	g_free( roomjid );
	47	return NULL;
	48	}
	49
	50	jc = g_new0( struct jabber_chat, 1 );
	51	jc->name = jabber_normalize( room );
	52
	53	if( ( jc->me = jabber_buddy_add( ic, roomjid ) ) == NULL )
	54	{
	55	g_free( roomjid );
	56	g_free( jc->name );
	57	g_free( jc );
	58	return NULL;
	59	}
[9c9b37c]	60
	61	/* roomjid isn't normalized yet, and we need an original version
	62	of the nick to send a proper presence update. */
	63	jc->my_full_jid = roomjid;
[e35d1a1]	64
	65	c = imcb_chat_new( ic, room );
	66	c->data = jc;
	67
	68	return c;
	69	}
	70
[fc0640e]	71	struct groupchat jabber_chat_with( struct im_connection ic, char *who )
	72	{
	73	struct jabber_data *jd = ic->proto_data;
	74	struct jabber_chat *jc;
	75	struct groupchat *c;
	76	sha1_state_t sum;
	77	double now = gettime();
	78	char uuid, rjid, *cserv;
	79
	80	sha1_init( &sum );
	81	sha1_append( &sum, (uint8_t*) ic->acc->user, strlen( ic->acc->user ) );
	82	sha1_append( &sum, (uint8_t*) &now, sizeof( now ) );
	83	sha1_append( &sum, (uint8_t*) who, strlen( who ) );
	84	uuid = sha1_random_uuid( &sum );
	85
	86	if( jd->flags & JFLAG_GTALK )
	87	cserv = g_strdup( "groupchat.google.com" );
	88	else
	89	/* Guess... */
	90	cserv = g_strdup_printf( "conference.%s", jd->server );
	91
	92	rjid = g_strdup_printf( "private-chat-%s@%s", uuid, cserv );
	93	g_free( uuid );
	94	g_free( cserv );
	95
	96	c = jabber_chat_join( ic, rjid, jd->username, NULL );
	97	g_free( rjid );
	98	if( c == NULL )
	99	return NULL;
	100
	101	jc = c->data;
	102	jc->invite = g_strdup( who );
	103
	104	return c;
	105	}
	106
[5bd21df]	107	static xt_status jabber_chat_join_failed( struct im_connection ic, struct xt_node node, struct xt_node *orig )
	108	{
	109	struct jabber_error *err;
	110	struct jabber_buddy *bud;
	111	char *room;
	112
	113	room = xt_find_attr( orig, "to" );
[13857c6]	114	bud = jabber_buddy_by_jid( ic, room, 0 );
[5bd21df]	115	err = jabber_error_parse( xt_find_node( node->children, "error" ), XMLNS_STANZA_ERROR );
	116	if( err )
	117	{
[13857c6]	118	imcb_error( ic, "Error joining groupchat %s: %s%s%s", room, err->code,
	119	err->text ? ": " : "", err->text ? err->text : "" );
[5bd21df]	120	jabber_error_free( err );
	121	}
[13857c6]	122	if( bud )
	123	jabber_chat_free( jabber_chat_by_jid( ic, bud->bare_jid ) );
[5bd21df]	124
[80e9db9]	125	return XT_HANDLED;
[5bd21df]	126	}
	127
	128	struct groupchat jabber_chat_by_jid( struct im_connection ic, const char *name )
	129	{
	130	char *normalized = jabber_normalize( name );
[aea8b68]	131	GSList *l;
[5bd21df]	132	struct groupchat *ret;
	133	struct jabber_chat *jc;
	134
[aea8b68]	135	for( l = ic->groupchats; l; l = l->next )
[5bd21df]	136	{
[aea8b68]	137	ret = l->data;
[5bd21df]	138	jc = ret->data;
	139	if( strcmp( normalized, jc->name ) == 0 )
	140	break;
	141	}
	142	g_free( normalized );
	143
[58f5ef7]	144	return l ? ret : NULL;
[5bd21df]	145	}
	146
[9da0bbf]	147	void jabber_chat_free( struct groupchat *c )
	148	{
	149	struct jabber_chat *jc = c->data;
	150
	151	jabber_buddy_remove_bare( c->ic, jc->name );
	152
	153	g_free( jc->my_full_jid );
	154	g_free( jc->name );
[fc0640e]	155	g_free( jc->invite );
[9da0bbf]	156	g_free( jc );
	157
	158	imcb_chat_free( c );
	159	}
	160
[43671b9]	161	int jabber_chat_msg( struct groupchat c, char message, int flags )
	162	{
	163	struct im_connection *ic = c->ic;
	164	struct jabber_chat *jc = c->data;
	165	struct xt_node *node;
	166
[63075d7]	167	jc->flags \|= JCFLAG_MESSAGE_SENT;
	168
[43671b9]	169	node = xt_new_node( "body", message, NULL );
	170	node = jabber_make_packet( "message", "groupchat", jc->name, node );
	171
	172	if( !jabber_write_packet( ic, node ) )
	173	{
	174	xt_free_node( node );
	175	return 0;
	176	}
	177	xt_free_node( node );
	178
	179	return 1;
	180	}
	181
[ef5c185]	182	int jabber_chat_topic( struct groupchat c, char topic )
	183	{
	184	struct im_connection *ic = c->ic;
	185	struct jabber_chat *jc = c->data;
	186	struct xt_node *node;
	187
	188	node = xt_new_node( "subject", topic, NULL );
	189	node = jabber_make_packet( "message", "groupchat", jc->name, node );
	190
	191	if( !jabber_write_packet( ic, node ) )
	192	{
	193	xt_free_node( node );
	194	return 0;
	195	}
	196	xt_free_node( node );
	197
	198	return 1;
	199	}
	200
[e35d1a1]	201	int jabber_chat_leave( struct groupchat c, const char reason )
	202	{
	203	struct im_connection *ic = c->ic;
	204	struct jabber_chat *jc = c->data;
	205	struct xt_node *node;
	206
	207	node = xt_new_node( "x", NULL, NULL );
	208	xt_add_attr( node, "xmlns", XMLNS_MUC );
[9c9b37c]	209	node = jabber_make_packet( "presence", "unavailable", jc->my_full_jid, node );
[e35d1a1]	210
	211	if( !jabber_write_packet( ic, node ) )
	212	{
	213	xt_free_node( node );
	214	return 0;
	215	}
	216	xt_free_node( node );
	217
	218	return 1;
	219	}
	220
[c058ff9]	221	void jabber_chat_invite( struct groupchat c, char who, char *message )
	222	{
	223	struct xt_node *node;
	224	struct im_connection *ic = c->ic;
	225	struct jabber_chat *jc = c->data;
	226
	227	node = xt_new_node( "reason", message, NULL );
	228
	229	node = xt_new_node( "invite", NULL, node );
	230	xt_add_attr( node, "to", who );
	231
	232	node = xt_new_node( "x", NULL, node );
	233	xt_add_attr( node, "xmlns", XMLNS_MUC_USER );
	234
	235	node = jabber_make_packet( "message", NULL, jc->name, node );
	236
	237	jabber_write_packet( ic, node );
	238
	239	xt_free_node( node );
	240	}
	241
[e35d1a1]	242	/* Not really the same syntax as the normal pkt_ functions, but this isn't
[0e7ab64]	243	called by the xmltree parser directly and this way I can add some extra
[e35d1a1]	244	parameters so we won't have to repeat too many things done by the caller
	245	already. */
	246	void jabber_chat_pkt_presence( struct im_connection ic, struct jabber_buddy bud, struct xt_node *node )
	247	{
	248	struct groupchat *chat;
	249	struct xt_node *c;
	250	char *type = xt_find_attr( node, "type" );
[68286eb]	251	struct jabber_data *jd = ic->proto_data;
[e35d1a1]	252	struct jabber_chat *jc;
	253	char *s;
	254
[5bd21df]	255	if( ( chat = jabber_chat_by_jid( ic, bud->bare_jid ) ) == NULL )
[e35d1a1]	256	{
	257	/* How could this happen?? We could do kill( self, 11 )
	258	now or just wait for the OS to do it. :-) */
	259	return;
	260	}
	261
	262	jc = chat->data;
	263
	264	if( type == NULL && !( bud->flags & JBFLAG_IS_CHATROOM ) )
	265	{
	266	bud->flags \|= JBFLAG_IS_CHATROOM;
	267	/* If this one wasn't set yet, this buddy just joined the chat.
	268	Slightly hackish way of finding out eh? ;-) */
	269
[b9f8b87]	270	/* This is pretty messy... Here it sets ext_jid to the real
	271	JID of the participant. Works for non-anonymized channels.
	272	Might break if someone joins a chat twice, though. */
[e35d1a1]	273	for( c = node->children; ( c = xt_find_node( c, "x" ) ); c = c->next )
	274	if( ( s = xt_find_attr( c, "xmlns" ) ) &&
	275	( strcmp( s, XMLNS_MUC_USER ) == 0 ) )
	276	{
[19176513]	277	struct xt_node *item;
	278
	279	item = xt_find_node( c->children, "item" );
	280	if( ( s = xt_find_attr( item, "jid" ) ) )
[e35d1a1]	281	{
	282	/* Yay, found what we need. :-) */
[b9f8b87]	283	bud->ext_jid = jabber_normalize( s );
[e35d1a1]	284	break;
	285	}
	286	}
	287
[6286f80]	288	/* Make up some other handle, if necessary. */
	289	if( bud->ext_jid == NULL )
	290	{
[54f2f55]	291	if( bud == jc->me )
[5d7dc00]	292	{
[68286eb]	293	bud->ext_jid = g_strdup( jd->me );
[5d7dc00]	294	}
[54f2f55]	295	else
[5d7dc00]	296	{
	297	int i;
	298
[54f2f55]	299	/* Don't want the nick to be at the end, so let's
	300	think of some slightly different notation to use
	301	for anonymous groupchat participants in BitlBee. */
	302	bud->ext_jid = g_strdup_printf( "%s=%s", bud->resource, bud->bare_jid );
[5d7dc00]	303
	304	/* And strip any unwanted characters. */
	305	for( i = 0; bud->resource[i]; i ++ )
	306	if( bud->ext_jid[i] == '=' \|\| bud->ext_jid[i] == '@' )
	307	bud->ext_jid[i] = '_';
[85023c6]	308
	309	/* Some program-specific restrictions. */
	310	imcb_clean_handle( ic, bud->ext_jid );
[5d7dc00]	311	}
[6286f80]	312	bud->flags \|= JBFLAG_IS_ANONYMOUS;
	313	}
[e35d1a1]	314
[e73a501]	315	if( bud != jc->me && bud->flags & JBFLAG_IS_ANONYMOUS )
[c570c86]	316	{
[e73a501]	317	/* If JIDs are anonymized, add them to the local
	318	list for the duration of this chat. */
[c570c86]	319	imcb_add_buddy( ic, bud->ext_jid, NULL );
	320	imcb_buddy_nick_hint( ic, bud->ext_jid, bud->resource );
	321	}
	322
[fc0640e]	323	if( bud == jc->me && jc->invite != NULL )
	324	{
	325	char *msg = g_strdup_printf( "Please join me in room %s", jc->name );
	326	jabber_chat_invite( chat, jc->invite, msg );
	327	g_free( jc->invite );
	328	g_free( msg );
	329	jc->invite = NULL;
	330	}
	331
[6286f80]	332	s = strchr( bud->ext_jid, '/' );
[e35d1a1]	333	if( s ) s = 0; / Should NEVER be NULL, but who knows... */
[6286f80]	334	imcb_chat_add_buddy( chat, bud->ext_jid );
[e35d1a1]	335	if( s ) *s = '/';
	336	}
[998b103]	337	else if( type ) /* type can only be NULL or "unavailable" in this function */
[e35d1a1]	338	{
[bdad407]	339	if( ( bud->flags & JBFLAG_IS_CHATROOM ) && bud->ext_jid )
	340	{
	341	s = strchr( bud->ext_jid, '/' );
	342	if( s ) *s = 0;
	343	imcb_chat_remove_buddy( chat, bud->ext_jid, NULL );
	344	if( bud != jc->me && bud->flags & JBFLAG_IS_ANONYMOUS )
	345	imcb_remove_buddy( ic, bud->ext_jid, NULL );
	346	if( s ) *s = '/';
	347	}
[e35d1a1]	348
	349	if( bud == jc->me )
[9da0bbf]	350	jabber_chat_free( chat );
[e35d1a1]	351	}
	352	}
	353
	354	void jabber_chat_pkt_message( struct im_connection ic, struct jabber_buddy bud, struct xt_node *node )
	355	{
[ef5c185]	356	struct xt_node *subject = xt_find_node( node->children, "subject" );
[e35d1a1]	357	struct xt_node *body = xt_find_node( node->children, "body" );
[63075d7]	358	struct groupchat *chat = bud ? jabber_chat_by_jid( ic, bud->bare_jid ) : NULL;
	359	struct jabber_chat *jc = chat ? chat->data : NULL;
[e35d1a1]	360	char *s;
	361
[41e0c00]	362	if( subject && chat )
	363	{
	364	s = bud ? strchr( bud->ext_jid, '/' ) : NULL;
	365	if( s ) *s = 0;
	366	imcb_chat_topic( chat, bud ? bud->ext_jid : NULL, subject->text_len > 0 ?
	367	subject->text : NULL, jabber_get_timestamp( node ) );
	368	if( s ) *s = '/';
	369	}
	370
[63075d7]	371	if( bud == NULL \|\| ( jc && ~jc->flags & JCFLAG_MESSAGE_SENT && bud == jc->me ) )
[e35d1a1]	372	{
[a882d6c]	373	char *nick;
	374
	375	if( body == NULL \|\| body->text_len == 0 )
	376	/* Meh. Empty messages aren't very interesting, no matter
	377	how much some servers love to send them. */
	378	return;
	379
[e35d1a1]	380	s = xt_find_attr( node, "from" ); /* pkt_message() already NULL-checked this one. */
[a882d6c]	381	nick = strchr( s, '/' );
	382	if( nick )
	383	{
	384	/* If this message included a resource/nick we don't know,
	385	we might still know the groupchat itself. */
	386	*nick = 0;
	387	chat = jabber_chat_by_jid( ic, s );
	388	*nick = '/';
	389
	390	nick ++;
	391	}
	392	else
	393	{
	394	/* message.c uses the EXACT_JID option, so bud should
	395	always be NULL here for bare JIDs. */
	396	chat = jabber_chat_by_jid( ic, s );
	397	}
	398
	399	if( nick == NULL )
	400	{
[e35d1a1]	401	/* This is fine, the groupchat itself isn't in jd->buddies. */
[a882d6c]	402	if( chat )
	403	imcb_chat_log( chat, "From conference server: %s", body->text );
	404	else
	405	imcb_log( ic, "System message from unknown groupchat %s: %s", s, body->text );
	406	}
[e35d1a1]	407	else
[a882d6c]	408	{
	409	/* This can happen too, at least when receiving a backlog when
	410	just joining a channel. */
	411	if( chat )
	412	imcb_chat_log( chat, "Message from unknown participant %s: %s", nick, body->text );
	413	else
	414	imcb_log( ic, "Groupchat message from unknown JID %s: %s", s, body->text );
	415	}
[e35d1a1]	416
	417	return;
	418	}
[63075d7]	419	else if( chat == NULL )
[e35d1a1]	420	{
	421	/* How could this happen?? We could do kill( self, 11 )
	422	now or just wait for the OS to do it. :-) */
	423	return;
	424	}
	425	if( body && body->text_len > 0 )
	426	{
[6286f80]	427	s = strchr( bud->ext_jid, '/' );
[e35d1a1]	428	if( s ) *s = 0;
[6286f80]	429	imcb_chat_msg( chat, bud->ext_jid, body->text, 0, jabber_get_timestamp( node ) );
[e35d1a1]	430	if( s ) *s = '/';
	431	}
	432	}

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