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source: protocols/jabber/conference.c @ 8d96b78

Last change on this file since 8d96b78 was 68286eb, checked in by Wilmer van der Gaast <wilmer@…>, at 2011-12-20T16:45:53Z
Detect JID changes at login time and warn the user about them.
Property mode set to `100644`
File size: 11.2 KB

Line
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"
25
26	static xt_status jabber_chat_join_failed( struct im_connection ic, struct xt_node node, struct xt_node *orig );
27
28	struct groupchat jabber_chat_join( struct im_connection ic, const char room, const char nick, const char *password )
29	{
30	struct jabber_chat *jc;
31	struct xt_node *node;
32	struct groupchat *c;
33	char *roomjid;
34
35	roomjid = g_strdup_printf( "%s/%s", room, nick );
36	node = xt_new_node( "x", NULL, NULL );
37	xt_add_attr( node, "xmlns", XMLNS_MUC );
38	if( password )
39	xt_add_child( node, xt_new_node( "password", password, NULL ) );
40	node = jabber_make_packet( "presence", NULL, roomjid, node );
41	jabber_cache_add( ic, node, jabber_chat_join_failed );
42
43	if( !jabber_write_packet( ic, node ) )
44	{
45	g_free( roomjid );
46	return NULL;
47	}
48
49	jc = g_new0( struct jabber_chat, 1 );
50	jc->name = jabber_normalize( room );
51
52	if( ( jc->me = jabber_buddy_add( ic, roomjid ) ) == NULL )
53	{
54	g_free( roomjid );
55	g_free( jc->name );
56	g_free( jc );
57	return NULL;
58	}
59
60	/* roomjid isn't normalized yet, and we need an original version
61	of the nick to send a proper presence update. */
62	jc->my_full_jid = roomjid;
63
64	c = imcb_chat_new( ic, room );
65	c->data = jc;
66
67	return c;
68	}
69
70	static xt_status jabber_chat_join_failed( struct im_connection ic, struct xt_node node, struct xt_node *orig )
71	{
72	struct jabber_error *err;
73	struct jabber_buddy *bud;
74	char *room;
75
76	room = xt_find_attr( orig, "to" );
77	bud = jabber_buddy_by_jid( ic, room, 0 );
78	err = jabber_error_parse( xt_find_node( node->children, "error" ), XMLNS_STANZA_ERROR );
79	if( err )
80	{
81	imcb_error( ic, "Error joining groupchat %s: %s%s%s", room, err->code,
82	err->text ? ": " : "", err->text ? err->text : "" );
83	jabber_error_free( err );
84	}
85	if( bud )
86	jabber_chat_free( jabber_chat_by_jid( ic, bud->bare_jid ) );
87
88	return XT_HANDLED;
89	}
90
91	struct groupchat jabber_chat_by_jid( struct im_connection ic, const char *name )
92	{
93	char *normalized = jabber_normalize( name );
94	GSList *l;
95	struct groupchat *ret;
96	struct jabber_chat *jc;
97
98	for( l = ic->groupchats; l; l = l->next )
99	{
100	ret = l->data;
101	jc = ret->data;
102	if( strcmp( normalized, jc->name ) == 0 )
103	break;
104	}
105	g_free( normalized );
106
107	return l ? ret : NULL;
108	}
109
110	void jabber_chat_free( struct groupchat *c )
111	{
112	struct jabber_chat *jc = c->data;
113
114	jabber_buddy_remove_bare( c->ic, jc->name );
115
116	g_free( jc->my_full_jid );
117	g_free( jc->name );
118	g_free( jc );
119
120	imcb_chat_free( c );
121	}
122
123	int jabber_chat_msg( struct groupchat c, char message, int flags )
124	{
125	struct im_connection *ic = c->ic;
126	struct jabber_chat *jc = c->data;
127	struct xt_node *node;
128
129	jc->flags \|= JCFLAG_MESSAGE_SENT;
130
131	node = xt_new_node( "body", message, NULL );
132	node = jabber_make_packet( "message", "groupchat", jc->name, node );
133
134	if( !jabber_write_packet( ic, node ) )
135	{
136	xt_free_node( node );
137	return 0;
138	}
139	xt_free_node( node );
140
141	return 1;
142	}
143
144	int jabber_chat_topic( struct groupchat c, char topic )
145	{
146	struct im_connection *ic = c->ic;
147	struct jabber_chat *jc = c->data;
148	struct xt_node *node;
149
150	node = xt_new_node( "subject", topic, NULL );
151	node = jabber_make_packet( "message", "groupchat", jc->name, node );
152
153	if( !jabber_write_packet( ic, node ) )
154	{
155	xt_free_node( node );
156	return 0;
157	}
158	xt_free_node( node );
159
160	return 1;
161	}
162
163	int jabber_chat_leave( struct groupchat c, const char reason )
164	{
165	struct im_connection *ic = c->ic;
166	struct jabber_chat *jc = c->data;
167	struct xt_node *node;
168
169	node = xt_new_node( "x", NULL, NULL );
170	xt_add_attr( node, "xmlns", XMLNS_MUC );
171	node = jabber_make_packet( "presence", "unavailable", jc->my_full_jid, node );
172
173	if( !jabber_write_packet( ic, node ) )
174	{
175	xt_free_node( node );
176	return 0;
177	}
178	xt_free_node( node );
179
180	return 1;
181	}
182
183	void jabber_chat_invite( struct groupchat c, char who, char *message )
184	{
185	struct xt_node *node;
186	struct im_connection *ic = c->ic;
187	struct jabber_chat *jc = c->data;
188
189	node = xt_new_node( "reason", message, NULL );
190
191	node = xt_new_node( "invite", NULL, node );
192	xt_add_attr( node, "to", who );
193
194	node = xt_new_node( "x", NULL, node );
195	xt_add_attr( node, "xmlns", XMLNS_MUC_USER );
196
197	node = jabber_make_packet( "message", NULL, jc->name, node );
198
199	jabber_write_packet( ic, node );
200
201	xt_free_node( node );
202	}
203
204	/* Not really the same syntax as the normal pkt_ functions, but this isn't
205	called by the xmltree parser directly and this way I can add some extra
206	parameters so we won't have to repeat too many things done by the caller
207	already. */
208	void jabber_chat_pkt_presence( struct im_connection ic, struct jabber_buddy bud, struct xt_node *node )
209	{
210	struct groupchat *chat;
211	struct xt_node *c;
212	char *type = xt_find_attr( node, "type" );
213	struct jabber_data *jd = ic->proto_data;
214	struct jabber_chat *jc;
215	char *s;
216
217	if( ( chat = jabber_chat_by_jid( ic, bud->bare_jid ) ) == NULL )
218	{
219	/* How could this happen?? We could do kill( self, 11 )
220	now or just wait for the OS to do it. :-) */
221	return;
222	}
223
224	jc = chat->data;
225
226	if( type == NULL && !( bud->flags & JBFLAG_IS_CHATROOM ) )
227	{
228	bud->flags \|= JBFLAG_IS_CHATROOM;
229	/* If this one wasn't set yet, this buddy just joined the chat.
230	Slightly hackish way of finding out eh? ;-) */
231
232	/* This is pretty messy... Here it sets ext_jid to the real
233	JID of the participant. Works for non-anonymized channels.
234	Might break if someone joins a chat twice, though. */
235	for( c = node->children; ( c = xt_find_node( c, "x" ) ); c = c->next )
236	if( ( s = xt_find_attr( c, "xmlns" ) ) &&
237	( strcmp( s, XMLNS_MUC_USER ) == 0 ) )
238	{
239	struct xt_node *item;
240
241	item = xt_find_node( c->children, "item" );
242	if( ( s = xt_find_attr( item, "jid" ) ) )
243	{
244	/* Yay, found what we need. :-) */
245	bud->ext_jid = jabber_normalize( s );
246	break;
247	}
248	}
249
250	/* Make up some other handle, if necessary. */
251	if( bud->ext_jid == NULL )
252	{
253	if( bud == jc->me )
254	{
255	bud->ext_jid = g_strdup( jd->me );
256	}
257	else
258	{
259	int i;
260
261	/* Don't want the nick to be at the end, so let's
262	think of some slightly different notation to use
263	for anonymous groupchat participants in BitlBee. */
264	bud->ext_jid = g_strdup_printf( "%s=%s", bud->resource, bud->bare_jid );
265
266	/* And strip any unwanted characters. */
267	for( i = 0; bud->resource[i]; i ++ )
268	if( bud->ext_jid[i] == '=' \|\| bud->ext_jid[i] == '@' )
269	bud->ext_jid[i] = '_';
270
271	/* Some program-specific restrictions. */
272	imcb_clean_handle( ic, bud->ext_jid );
273	}
274	bud->flags \|= JBFLAG_IS_ANONYMOUS;
275	}
276
277	if( bud != jc->me && bud->flags & JBFLAG_IS_ANONYMOUS )
278	{
279	/* If JIDs are anonymized, add them to the local
280	list for the duration of this chat. */
281	imcb_add_buddy( ic, bud->ext_jid, NULL );
282	imcb_buddy_nick_hint( ic, bud->ext_jid, bud->resource );
283	}
284
285	s = strchr( bud->ext_jid, '/' );
286	if( s ) s = 0; / Should NEVER be NULL, but who knows... */
287	imcb_chat_add_buddy( chat, bud->ext_jid );
288	if( s ) *s = '/';
289	}
290	else if( type ) /* type can only be NULL or "unavailable" in this function */
291	{
292	if( ( bud->flags & JBFLAG_IS_CHATROOM ) && bud->ext_jid )
293	{
294	s = strchr( bud->ext_jid, '/' );
295	if( s ) *s = 0;
296	imcb_chat_remove_buddy( chat, bud->ext_jid, NULL );
297	if( bud != jc->me && bud->flags & JBFLAG_IS_ANONYMOUS )
298	imcb_remove_buddy( ic, bud->ext_jid, NULL );
299	if( s ) *s = '/';
300	}
301
302	if( bud == jc->me )
303	jabber_chat_free( chat );
304	}
305	}
306
307	void jabber_chat_pkt_message( struct im_connection ic, struct jabber_buddy bud, struct xt_node *node )
308	{
309	struct xt_node *subject = xt_find_node( node->children, "subject" );
310	struct xt_node *body = xt_find_node( node->children, "body" );
311	struct groupchat *chat = bud ? jabber_chat_by_jid( ic, bud->bare_jid ) : NULL;
312	struct jabber_chat *jc = chat ? chat->data : NULL;
313	char *s;
314
315	if( subject && chat )
316	{
317	s = bud ? strchr( bud->ext_jid, '/' ) : NULL;
318	if( s ) *s = 0;
319	imcb_chat_topic( chat, bud ? bud->ext_jid : NULL, subject->text_len > 0 ?
320	subject->text : NULL, jabber_get_timestamp( node ) );
321	if( s ) *s = '/';
322	}
323
324	if( bud == NULL \|\| ( jc && ~jc->flags & JCFLAG_MESSAGE_SENT && bud == jc->me ) )
325	{
326	char *nick;
327
328	if( body == NULL \|\| body->text_len == 0 )
329	/* Meh. Empty messages aren't very interesting, no matter
330	how much some servers love to send them. */
331	return;
332
333	s = xt_find_attr( node, "from" ); /* pkt_message() already NULL-checked this one. */
334	nick = strchr( s, '/' );
335	if( nick )
336	{
337	/* If this message included a resource/nick we don't know,
338	we might still know the groupchat itself. */
339	*nick = 0;
340	chat = jabber_chat_by_jid( ic, s );
341	*nick = '/';
342
343	nick ++;
344	}
345	else
346	{
347	/* message.c uses the EXACT_JID option, so bud should
348	always be NULL here for bare JIDs. */
349	chat = jabber_chat_by_jid( ic, s );
350	}
351
352	if( nick == NULL )
353	{
354	/* This is fine, the groupchat itself isn't in jd->buddies. */
355	if( chat )
356	imcb_chat_log( chat, "From conference server: %s", body->text );
357	else
358	imcb_log( ic, "System message from unknown groupchat %s: %s", s, body->text );
359	}
360	else
361	{
362	/* This can happen too, at least when receiving a backlog when
363	just joining a channel. */
364	if( chat )
365	imcb_chat_log( chat, "Message from unknown participant %s: %s", nick, body->text );
366	else
367	imcb_log( ic, "Groupchat message from unknown JID %s: %s", s, body->text );
368	}
369
370	return;
371	}
372	else if( chat == NULL )
373	{
374	/* How could this happen?? We could do kill( self, 11 )
375	now or just wait for the OS to do it. :-) */
376	return;
377	}
378	if( body && body->text_len > 0 )
379	{
380	s = strchr( bud->ext_jid, '/' );
381	if( s ) *s = 0;
382	imcb_chat_msg( chat, bud->ext_jid, body->text, 0, jabber_get_timestamp( node ) );
383	if( s ) *s = '/';
384	}
385	}

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