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source: protocols/jabber/jabber.c @ fcb2c2e

Last change on this file since fcb2c2e was fcb2c2e, checked in by dequis <dx@…>, at 2015-01-26T02:43:34Z

jabber: Account-wide display_name setting, for groupchats

This sets the default value of 'nick' for newly created groupchats.
There is no way to set an account-wide nick.

Property mode set to 100644

File size: 19.1 KB

Line
1	/***************************************************************************\
2	* *
3	* BitlBee - An IRC to IM gateway *
4	* Jabber module - Main file *
5	* *
6	* Copyright 2006-2013 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 <glib.h>
25	#include <string.h>
26	#include <unistd.h>
27	#include <ctype.h>
28	#include <stdio.h>
29
30	#include "ssl_client.h"
31	#include "xmltree.h"
32	#include "bitlbee.h"
33	#include "jabber.h"
34	#include "oauth.h"
35	#include "md5.h"
36
37	GSList *jabber_connections;
38
39	/* First enty is the default */
40	static const int jabber_port_list[] = {
41	5222,
42	5223,
43	5220,
44	5221,
45	5224,
46	5225,
47	5226,
48	5227,
49	5228,
50	5229,
51	80,
52	443,
53	0
54	};
55
56	static void jabber_init( account_t *acc )
57	{
58	set_t *s;
59	char str[16];
60
61	s = set_add( &acc->set, "activity_timeout", "600", set_eval_int, acc );
62
63	s = set_add( &acc->set, "oauth", "false", set_eval_oauth, acc );
64
65	s = set_add( &acc->set, "display_name", NULL, NULL, acc );
66
67	g_snprintf( str, sizeof( str ), "%d", jabber_port_list[0] );
68	s = set_add( &acc->set, "port", str, set_eval_int, acc );
69	s->flags \|= ACC_SET_OFFLINE_ONLY;
70
71	s = set_add( &acc->set, "priority", "0", set_eval_priority, acc );
72
73	s = set_add( &acc->set, "proxy", "<local>;<auto>", NULL, acc );
74
75	s = set_add( &acc->set, "resource", "BitlBee", NULL, acc );
76	s->flags \|= ACC_SET_OFFLINE_ONLY;
77
78	s = set_add( &acc->set, "resource_select", "activity", NULL, acc );
79
80	s = set_add( &acc->set, "sasl", "true", set_eval_bool, acc );
81	s->flags \|= ACC_SET_OFFLINE_ONLY \| SET_HIDDEN_DEFAULT;
82
83	s = set_add( &acc->set, "server", NULL, set_eval_account, acc );
84	s->flags \|= SET_NOSAVE \| ACC_SET_OFFLINE_ONLY \| SET_NULL_OK;
85
86	s = set_add( &acc->set, "ssl", "false", set_eval_bool, acc );
87	s->flags \|= ACC_SET_OFFLINE_ONLY;
88
89	s = set_add( &acc->set, "tls", "true", set_eval_tls, acc );
90	s->flags \|= ACC_SET_OFFLINE_ONLY;
91
92	s = set_add( &acc->set, "tls_verify", "true", set_eval_bool, acc );
93	s->flags \|= ACC_SET_OFFLINE_ONLY;
94
95	s = set_add( &acc->set, "user_agent", "BitlBee", NULL, acc );
96
97	s = set_add( &acc->set, "xmlconsole", "false", set_eval_bool, acc );
98	s->flags \|= ACC_SET_OFFLINE_ONLY;
99
100	acc->flags \|= ACC_FLAG_AWAY_MESSAGE \| ACC_FLAG_STATUS_MESSAGE \|
101	ACC_FLAG_HANDLE_DOMAINS;
102	}
103
104	static void jabber_generate_id_hash( struct jabber_data *jd );
105
106	static void jabber_login( account_t *acc )
107	{
108	struct im_connection *ic = imcb_new( acc );
109	struct jabber_data *jd = g_new0( struct jabber_data, 1 );
110	char *s;
111
112	/* For now this is needed in the _connected() handlers if using
113	GLib event handling, to make sure we're not handling events
114	on dead connections. */
115	jabber_connections = g_slist_prepend( jabber_connections, ic );
116
117	jd->ic = ic;
118	ic->proto_data = jd;
119
120	jabber_set_me( ic, acc->user );
121
122	jd->fd = jd->r_inpa = jd->w_inpa = -1;
123
124	if( jd->server == NULL )
125	{
126	imcb_error( ic, "Incomplete account name (format it like <username@jabberserver.name>)" );
127	imc_logout( ic, FALSE );
128	return;
129	}
130
131	if( ( s = strchr( jd->server, '/' ) ) )
132	{
133	*s = 0;
134	set_setstr( &acc->set, "resource", s + 1 );
135
136	/* Also remove the /resource from the original variable so we
137	won't have to do this again every time. */
138	s = strchr( acc->user, '/' );
139	*s = 0;
140	}
141
142	jd->node_cache = g_hash_table_new_full( g_str_hash, g_str_equal, NULL, jabber_cache_entry_free );
143	jd->buddies = g_hash_table_new( g_str_hash, g_str_equal );
144
145	if( set_getbool( &acc->set, "oauth" ) )
146	{
147	GSList *p_in = NULL;
148	const char *tok;
149
150	jd->fd = jd->r_inpa = jd->w_inpa = -1;
151
152	if( strstr( jd->server, ".facebook.com" ) )
153	jd->oauth2_service = &oauth2_service_facebook;
154	else
155	jd->oauth2_service = &oauth2_service_google;
156
157	oauth_params_parse( &p_in, ic->acc->pass );
158
159	/* First see if we have a refresh token, in which case any
160	access token we might have has probably expired already
161	anyway. */
162	if( ( tok = oauth_params_get( &p_in, "refresh_token" ) ) )
163	{
164	sasl_oauth2_refresh( ic, tok );
165	}
166	/* If we don't have a refresh token, let's hope the access
167	token is still usable. */
168	else if( ( tok = oauth_params_get( &p_in, "access_token" ) ) )
169	{
170	jd->oauth2_access_token = g_strdup( tok );
171	jabber_connect( ic );
172	}
173	/* If we don't have any, start the OAuth process now. Don't
174	even open an XMPP connection yet. */
175	else
176	{
177	sasl_oauth2_init( ic );
178	ic->flags \|= OPT_SLOW_LOGIN;
179	}
180
181	oauth_params_free( &p_in );
182	}
183	else
184	jabber_connect( ic );
185	}
186
187	/* Separate this from jabber_login() so we can do OAuth first if necessary.
188	Putting this in io.c would probably be more correct. */
189	void jabber_connect( struct im_connection *ic )
190	{
191	account_t *acc = ic->acc;
192	struct jabber_data *jd = ic->proto_data;
193	int i;
194	char *connect_to;
195	struct ns_srv_reply *srvl = NULL, srv = NULL;
196
197	/* Figure out the hostname to connect to. */
198	if( acc->server && *acc->server )
199	connect_to = acc->server;
200	else if( ( srvl = srv_lookup( "xmpp-client", "tcp", jd->server ) ) \|\|
201	( srvl = srv_lookup( "jabber-client", "tcp", jd->server ) ) )
202	{
203	/* Find the lowest-priority one. These usually come
204	back in random/shuffled order. Not looking at
205	weights etc for now. */
206	srv = *srvl;
207	for( i = 1; srvl[i]; i ++ )
208	if( srvl[i]->prio < srv->prio )
209	srv = srvl[i];
210
211	connect_to = srv->name;
212	}
213	else
214	connect_to = jd->server;
215
216	imcb_log( ic, "Connecting" );
217
218	for( i = 0; jabber_port_list[i] > 0; i ++ )
219	if( set_getint( &acc->set, "port" ) == jabber_port_list[i] )
220	break;
221
222	if( jabber_port_list[i] == 0 )
223	{
224	imcb_log( ic, "Illegal port number" );
225	imc_logout( ic, FALSE );
226	return;
227	}
228
229	/* For non-SSL connections we can try to use the port # from the SRV
230	reply, but let's not do that when using SSL, SSL usually runs on
231	non-standard ports... */
232	if( set_getbool( &acc->set, "ssl" ) )
233	{
234	jd->ssl = ssl_connect( connect_to, set_getint( &acc->set, "port" ), set_getbool( &acc->set, "tls_verify" ), jabber_connected_ssl, ic );
235	jd->fd = jd->ssl ? ssl_getfd( jd->ssl ) : -1;
236	}
237	else
238	{
239	jd->fd = proxy_connect( connect_to, srv ? srv->port : set_getint( &acc->set, "port" ), jabber_connected_plain, ic );
240	}
241	srv_free( srvl );
242
243	if( jd->fd == -1 )
244	{
245	imcb_error( ic, "Could not connect to server" );
246	imc_logout( ic, TRUE );
247
248	return;
249	}
250
251	if( set_getbool( &acc->set, "xmlconsole" ) )
252	{
253	jd->flags \|= JFLAG_XMLCONSOLE;
254	/* Shouldn't really do this at this stage already, maybe. But
255	I think this shouldn't break anything. */
256	imcb_add_buddy( ic, JABBER_XMLCONSOLE_HANDLE, NULL );
257	}
258
259	jabber_generate_id_hash( jd );
260	}
261
262	/* This generates an unfinished md5_state_t variable. Every time we generate
263	an ID, we finish the state by adding a sequence number and take the hash. */
264	static void jabber_generate_id_hash( struct jabber_data *jd )
265	{
266	md5_byte_t binbuf[4];
267	char *s;
268
269	md5_init( &jd->cached_id_prefix );
270	md5_append( &jd->cached_id_prefix, (unsigned char *) jd->username, strlen( jd->username ) );
271	md5_append( &jd->cached_id_prefix, (unsigned char *) jd->server, strlen( jd->server ) );
272	s = set_getstr( &jd->ic->acc->set, "resource" );
273	md5_append( &jd->cached_id_prefix, (unsigned char *) s, strlen( s ) );
274	random_bytes( binbuf, 4 );
275	md5_append( &jd->cached_id_prefix, binbuf, 4 );
276	}
277
278	static void jabber_logout( struct im_connection *ic )
279	{
280	struct jabber_data *jd = ic->proto_data;
281
282	while( jd->filetransfers )
283	imcb_file_canceled( ic, ( ( struct jabber_transfer *) jd->filetransfers->data )->ft, "Logging out" );
284
285	while( jd->streamhosts )
286	{
287	jabber_streamhost_t *sh = jd->streamhosts->data;
288	jd->streamhosts = g_slist_remove( jd->streamhosts, sh );
289	g_free( sh->jid );
290	g_free( sh->host );
291	g_free( sh );
292	}
293
294	if( jd->fd >= 0 )
295	jabber_end_stream( ic );
296
297	while( ic->groupchats )
298	jabber_chat_free( ic->groupchats->data );
299
300	if( jd->r_inpa >= 0 )
301	b_event_remove( jd->r_inpa );
302	if( jd->w_inpa >= 0 )
303	b_event_remove( jd->w_inpa );
304
305	if( jd->ssl )
306	ssl_disconnect( jd->ssl );
307	if( jd->fd >= 0 )
308	closesocket( jd->fd );
309
310	if( jd->tx_len )
311	g_free( jd->txq );
312
313	if( jd->node_cache )
314	g_hash_table_destroy( jd->node_cache );
315
316	jabber_buddy_remove_all( ic );
317
318	xt_free( jd->xt );
319
320	g_free( jd->oauth2_access_token );
321	g_free( jd->away_message );
322	g_free( jd->internal_jid );
323	g_free( jd->username );
324	g_free( jd->me );
325	g_free( jd );
326
327	jabber_connections = g_slist_remove( jabber_connections, ic );
328	}
329
330	static int jabber_buddy_msg( struct im_connection ic, char who, char *message, int flags )
331	{
332	struct jabber_data *jd = ic->proto_data;
333	struct jabber_buddy *bud;
334	struct xt_node *node;
335	char *s;
336	int st;
337
338	if( g_strcasecmp( who, JABBER_XMLCONSOLE_HANDLE ) == 0 )
339	return jabber_write( ic, message, strlen( message ) );
340
341	if( g_strcasecmp( who, JABBER_OAUTH_HANDLE ) == 0 &&
342	!( jd->flags & OPT_LOGGED_IN ) && jd->fd == -1 )
343	{
344	if( sasl_oauth2_get_refresh_token( ic, message ) )
345	{
346	return 1;
347	}
348	else
349	{
350	imcb_error( ic, "OAuth failure" );
351	imc_logout( ic, TRUE );
352	return 0;
353	}
354	}
355
356	if( ( s = strchr( who, '=' ) ) && jabber_chat_by_jid( ic, s + 1 ) )
357	bud = jabber_buddy_by_ext_jid( ic, who, 0 );
358	else
359	bud = jabber_buddy_by_jid( ic, who, GET_BUDDY_BARE_OK );
360
361	node = xt_new_node( "body", message, NULL );
362	node = jabber_make_packet( "message", "chat", bud ? bud->full_jid : who, node );
363
364	if( bud && ( jd->flags & JFLAG_WANT_TYPING ) &&
365	( ( bud->flags & JBFLAG_DOES_XEP85 ) \|\|
366	!( bud->flags & JBFLAG_PROBED_XEP85 ) ) )
367	{
368	struct xt_node *act;
369
370	/* If the user likes typing notification and if we don't know
371	(and didn't probe before) if this resource supports XEP85,
372	include a probe in this packet now. Also, if we know this
373	buddy does support XEP85, we have to send this <active/>
374	tag to tell that the user stopped typing (well, that's what
375	we guess when s/he pressed Enter...). */
376	act = xt_new_node( "active", NULL, NULL );
377	xt_add_attr( act, "xmlns", XMLNS_CHATSTATES );
378	xt_add_child( node, act );
379
380	/* Just make sure we do this only once. */
381	bud->flags \|= JBFLAG_PROBED_XEP85;
382	}
383
384	st = jabber_write_packet( ic, node );
385	xt_free_node( node );
386
387	return st;
388	}
389
390	static GList jabber_away_states( struct im_connection ic )
391	{
392	static GList *l = NULL;
393	int i;
394
395	if( l == NULL )
396	for( i = 0; jabber_away_state_list[i].full_name; i ++ )
397	l = g_list_append( l, (void*) jabber_away_state_list[i].full_name );
398
399	return l;
400	}
401
402	static void jabber_get_info( struct im_connection ic, char who )
403	{
404	struct jabber_buddy *bud;
405
406	bud = jabber_buddy_by_jid( ic, who, GET_BUDDY_FIRST );
407
408	while( bud )
409	{
410	imcb_log( ic, "Buddy %s (%d) information:", bud->full_jid, bud->priority );
411	if( bud->away_state )
412	imcb_log( ic, "Away state: %s", bud->away_state->full_name );
413	imcb_log( ic, "Status message: %s", bud->away_message ? bud->away_message : "(none)" );
414
415	bud = bud->next;
416	}
417
418	jabber_get_vcard( ic, bud ? bud->full_jid : who );
419	}
420
421	static void jabber_set_away( struct im_connection ic, char state_txt, char *message )
422	{
423	struct jabber_data *jd = ic->proto_data;
424
425	/* state_txt == NULL -> Not away.
426	Unknown state -> fall back to the first defined away state. */
427	if( state_txt == NULL )
428	jd->away_state = NULL;
429	else if( ( jd->away_state = jabber_away_state_by_name( state_txt ) ) == NULL )
430	jd->away_state = jabber_away_state_list;
431
432	g_free( jd->away_message );
433	jd->away_message = ( message && *message ) ? g_strdup( message ) : NULL;
434
435	presence_send_update( ic );
436	}
437
438	static void jabber_add_buddy( struct im_connection ic, char who, char *group )
439	{
440	struct jabber_data *jd = ic->proto_data;
441
442	if( g_strcasecmp( who, JABBER_XMLCONSOLE_HANDLE ) == 0 )
443	{
444	jd->flags \|= JFLAG_XMLCONSOLE;
445	imcb_add_buddy( ic, JABBER_XMLCONSOLE_HANDLE, NULL );
446	return;
447	}
448
449	if( jabber_add_to_roster( ic, who, NULL, group ) )
450	presence_send_request( ic, who, "subscribe" );
451	}
452
453	static void jabber_remove_buddy( struct im_connection ic, char who, char *group )
454	{
455	struct jabber_data *jd = ic->proto_data;
456
457	if( g_strcasecmp( who, JABBER_XMLCONSOLE_HANDLE ) == 0 )
458	{
459	jd->flags &= ~JFLAG_XMLCONSOLE;
460	/* Not necessary for now. And for now the code isn't too
461	happy if the buddy is completely gone right after calling
462	this function already.
463	imcb_remove_buddy( ic, JABBER_XMLCONSOLE_HANDLE, NULL );
464	*/
465	return;
466	}
467
468	/* We should always do this part. Clean up our administration a little bit. */
469	jabber_buddy_remove_bare( ic, who );
470
471	if( jabber_remove_from_roster( ic, who ) )
472	presence_send_request( ic, who, "unsubscribe" );
473	}
474
475	static struct groupchat jabber_chat_join_( struct im_connection ic, const char room, const char nick, const char password, set_t *sets )
476	{
477	struct jabber_data *jd = ic->proto_data;
478	char *final_nick;
479
480	/* Ignore the passed nick parameter if we have our own default */
481	if ( !( final_nick = set_getstr( sets, "nick" ) ) &&
482	!( final_nick = set_getstr( &ic->acc->set, "display_name" ) ) ) {
483	/* Well, whatever, actually use the provided default, then */
484	final_nick = (char *) nick;
485	}
486
487	if( strchr( room, '@' ) == NULL )
488	imcb_error( ic, "%s is not a valid Jabber room name. Maybe you mean %s@conference.%s?",
489	room, room, jd->server );
490	else if( jabber_chat_by_jid( ic, room ) )
491	imcb_error( ic, "Already present in chat `%s'", room );
492	else
493	return jabber_chat_join( ic, room, final_nick, set_getstr( sets, "password" ) );
494
495	return NULL;
496	}
497
498	static struct groupchat jabber_chat_with_( struct im_connection ic, char *who )
499	{
500	return jabber_chat_with( ic, who );
501	}
502
503	static void jabber_chat_msg_( struct groupchat c, char message, int flags )
504	{
505	if( c && message )
506	jabber_chat_msg( c, message, flags );
507	}
508
509	static void jabber_chat_topic_( struct groupchat c, char topic )
510	{
511	if( c && topic )
512	jabber_chat_topic( c, topic );
513	}
514
515	static void jabber_chat_leave_( struct groupchat *c )
516	{
517	if( c )
518	jabber_chat_leave( c, NULL );
519	}
520
521	static void jabber_chat_invite_( struct groupchat c, char who, char *msg )
522	{
523	struct jabber_data *jd = c->ic->proto_data;
524	struct jabber_chat *jc = c->data;
525	gchar *msg_alt = NULL;
526
527	if( msg == NULL )
528	msg_alt = g_strdup_printf( "%s invited you to %s", jd->me, jc->name );
529
530	if( c && who )
531	jabber_chat_invite( c, who, msg ? msg : msg_alt );
532
533	g_free( msg_alt );
534	}
535
536	static void jabber_keepalive( struct im_connection *ic )
537	{
538	/* Just any whitespace character is enough as a keepalive for XMPP sessions. */
539	if( !jabber_write( ic, "\n", 1 ) )
540	return;
541
542	/* This runs the garbage collection every minute, which means every packet
543	is in the cache for about a minute (which should be enough AFAIK). */
544	jabber_cache_clean( ic );
545	}
546
547	static int jabber_send_typing( struct im_connection ic, char who, int typing )
548	{
549	struct jabber_data *jd = ic->proto_data;
550	struct jabber_buddy *bud;
551
552	/* Enable typing notification related code from now. */
553	jd->flags \|= JFLAG_WANT_TYPING;
554
555	if( ( bud = jabber_buddy_by_jid( ic, who, 0 ) ) == NULL )
556	{
557	/* Sending typing notifications to unknown buddies is
558	unsupported for now. Shouldn't be a problem, I think. */
559	return 0;
560	}
561
562	if( bud->flags & JBFLAG_DOES_XEP85 )
563	{
564	/* We're only allowed to send this stuff if we know the other
565	side supports it. */
566
567	struct xt_node *node;
568	char *type;
569	int st;
570
571	if( typing & OPT_TYPING )
572	type = "composing";
573	else if( typing & OPT_THINKING )
574	type = "paused";
575	else
576	type = "active";
577
578	node = xt_new_node( type, NULL, NULL );
579	xt_add_attr( node, "xmlns", XMLNS_CHATSTATES );
580	node = jabber_make_packet( "message", "chat", bud->full_jid, node );
581
582	st = jabber_write_packet( ic, node );
583	xt_free_node( node );
584
585	return st;
586	}
587
588	return 1;
589	}
590
591	void jabber_chat_add_settings( account_t acc, set_t *head )
592	{
593	/* Meh. Stupid room passwords. Not trying to obfuscate/hide
594	them from the user for now. */
595	set_add( head, "password", NULL, NULL, NULL );
596	}
597
598	void jabber_chat_free_settings( account_t acc, set_t *head )
599	{
600	set_del( head, "password" );
601	}
602
603	GList jabber_buddy_action_list( bee_user_t bu )
604	{
605	static GList *ret = NULL;
606
607	if( ret == NULL )
608	{
609	static const struct buddy_action ba[2] = {
610	{ "VERSION", "Get client (version) information" },
611	};
612
613	ret = g_list_prepend( ret, (void*) ba + 0 );
614	}
615
616	return ret;
617	}
618
619	void jabber_buddy_action( struct bee_user bu, const char action, char const args[], void *data )
620	{
621	if( g_strcasecmp( action, "VERSION" ) == 0 )
622	{
623	struct jabber_buddy *bud;
624
625	if( ( bud = jabber_buddy_by_ext_jid( bu->ic, bu->handle, 0 ) ) == NULL )
626	bud = jabber_buddy_by_jid( bu->ic, bu->handle, GET_BUDDY_FIRST );
627	for( ; bud; bud = bud->next )
628	jabber_iq_version_send( bu->ic, bud, data );
629	}
630
631	return NULL;
632	}
633
634	gboolean jabber_handle_is_self( struct im_connection ic, const char who ) {
635	struct jabber_data *jd = ic->proto_data;
636	return ( ( g_strcasecmp( who, ic->acc->user ) == 0 ) \|\|
637	( jd->internal_jid &&
638	g_strcasecmp( who, jd->internal_jid ) == 0 ) );
639	}
640
641	void jabber_initmodule()
642	{
643	struct prpl *ret = g_new0( struct prpl, 1 );
644
645	ret->name = "jabber";
646	ret->mms = 0; /* no limit */
647	ret->login = jabber_login;
648	ret->init = jabber_init;
649	ret->logout = jabber_logout;
650	ret->buddy_msg = jabber_buddy_msg;
651	ret->away_states = jabber_away_states;
652	ret->set_away = jabber_set_away;
653	// ret->set_info = jabber_set_info;
654	ret->get_info = jabber_get_info;
655	ret->add_buddy = jabber_add_buddy;
656	ret->remove_buddy = jabber_remove_buddy;
657	ret->chat_msg = jabber_chat_msg_;
658	ret->chat_topic = jabber_chat_topic_;
659	ret->chat_invite = jabber_chat_invite_;
660	ret->chat_leave = jabber_chat_leave_;
661	ret->chat_join = jabber_chat_join_;
662	ret->chat_with = jabber_chat_with_;
663	ret->chat_add_settings = jabber_chat_add_settings;
664	ret->chat_free_settings = jabber_chat_free_settings;
665	ret->keepalive = jabber_keepalive;
666	ret->send_typing = jabber_send_typing;
667	ret->handle_cmp = g_strcasecmp;
668	ret->handle_is_self = jabber_handle_is_self;
669	ret->transfer_request = jabber_si_transfer_request;
670	ret->buddy_action_list = jabber_buddy_action_list;
671	ret->buddy_action = jabber_buddy_action;
672
673	register_protocol( ret );
674	}

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