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source: protocols/jabber/iq.c @ 8d93b4a

3.0

Last change on this file since 8d93b4a was 8b8def58, checked in by Wilmer van der Gaast <wilmer@…>, at 2010-06-24T09:14:34Z
Merging a few revisions from mainline.
Property mode set to `100644`
File size: 24.0 KB

Rev	Line
[f06894d]	1	/***************************************************************************\
	2	* *
	3	* BitlBee - An IRC to IM gateway *
	4	* Jabber module - IQ packets *
	5	* *
	6	* Copyright 2006 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"
[77bfd07]	25	#include "sha1.h"
[f06894d]	26
[0da65d5]	27	static xt_status jabber_parse_roster( struct im_connection ic, struct xt_node node, struct xt_node *orig );
	28	static xt_status jabber_iq_display_vcard( struct im_connection ic, struct xt_node node, struct xt_node *orig );
[abbd8ed]	29
[f06894d]	30	xt_status jabber_pkt_iq( struct xt_node *node, gpointer data )
	31	{
[0da65d5]	32	struct im_connection *ic = data;
[58b5f62]	33	struct xt_node c, reply = NULL;
[861c199]	34	char type, s;
[259edd4]	35	int st, pack = 1;
[21167d2]	36
[70f6aab8]	37	type = xt_find_attr( node, "type" );
[f06894d]	38
[70f6aab8]	39	if( !type )
[861c199]	40	{
[84b045d]	41	imcb_error( ic, "Received IQ packet without type." );
[c2fb3809]	42	imc_logout( ic, TRUE );
[861c199]	43	return XT_ABORT;
	44	}
[21167d2]	45
[58b5f62]	46	if( strcmp( type, "result" ) == 0 \|\| strcmp( type, "error" ) == 0 )
[861c199]	47	{
[4306d8b]	48	return jabber_cache_handle_packet( ic, node );
[861c199]	49	}
[58b5f62]	50	else if( strcmp( type, "get" ) == 0 )
	51	{
[eded1f7]	52	if( !( ( c = xt_find_node( node->children, "query" ) ) \|\|
[74349eb]	53	( c = xt_find_node( node->children, "ping" ) ) ) \|\|
[58b5f62]	54	!( s = xt_find_attr( c, "xmlns" ) ) )
	55	{
[74349eb]	56	/* Sigh. Who decided to suddenly invent new elements
	57	instead of just sticking with <query/>? */
[58b5f62]	58	return XT_HANDLED;
	59	}
	60
	61	reply = xt_new_node( "query", NULL, NULL );
	62	xt_add_attr( reply, "xmlns", s );
	63
	64	/* Of course this is a very essential query to support. ;-) */
[47d3ac4]	65	if( strcmp( s, XMLNS_VERSION ) == 0 )
[58b5f62]	66	{
[4eef271]	67	xt_add_child( reply, xt_new_node( "name", set_getstr( &ic->acc->set, "user_agent" ), NULL ) );
[58b5f62]	68	xt_add_child( reply, xt_new_node( "version", BITLBEE_VERSION, NULL ) );
	69	xt_add_child( reply, xt_new_node( "os", ARCH, NULL ) );
	70	}
[47d3ac4]	71	else if( strcmp( s, XMLNS_TIME ) == 0 )
[a4effbf]	72	{
	73	time_t time_ep;
	74	char buf[1024];
	75
	76	buf[sizeof(buf)-1] = 0;
	77	time_ep = time( NULL );
	78
	79	strftime( buf, sizeof( buf ) - 1, "%Y%m%dT%H:%M:%S", gmtime( &time_ep ) );
	80	xt_add_child( reply, xt_new_node( "utc", buf, NULL ) );
	81
	82	strftime( buf, sizeof( buf ) - 1, "%Z", localtime( &time_ep ) );
	83	xt_add_child( reply, xt_new_node( "tz", buf, NULL ) );
	84	}
[eded1f7]	85	else if( strcmp( s, XMLNS_PING ) == 0 )
	86	{
	87	xt_free_node( reply );
	88	reply = jabber_make_packet( "iq", "result", xt_find_attr( node, "from" ), NULL );
	89	if( ( s = xt_find_attr( node, "id" ) ) )
	90	xt_add_attr( reply, "id", s );
	91	pack = 0;
	92	}
[dc0ba9c]	93	else if( strcmp( s, XMLNS_DISCO_INFO ) == 0 )
[58b5f62]	94	{
[1ba7e8f]	95	const char *features[] = { XMLNS_DISCO_INFO,
[8c1eb80]	96	XMLNS_VERSION,
[40ef702]	97	XMLNS_TIME,
	98	XMLNS_CHATSTATES,
	99	XMLNS_MUC,
[eded1f7]	100	XMLNS_PING,
[1c3008a]	101	XMLNS_SI,
	102	XMLNS_BYTESTREAMS,
	103	XMLNS_FILETRANSFER,
[40ef702]	104	NULL };
	105	const char **f;
	106
[58b5f62]	107	c = xt_new_node( "identity", NULL, NULL );
	108	xt_add_attr( c, "category", "client" );
	109	xt_add_attr( c, "type", "pc" );
[4eef271]	110	xt_add_attr( c, "name", set_getstr( &ic->acc->set, "user_agent" ) );
[58b5f62]	111	xt_add_child( reply, c );
	112
[40ef702]	113	for( f = features; *f; f ++ )
	114	{
	115	c = xt_new_node( "feature", NULL, NULL );
	116	xt_add_attr( c, "var", *f );
	117	xt_add_child( reply, c );
	118	}
[58b5f62]	119	}
	120	else
	121	{
	122	xt_free_node( reply );
[2c2df7d]	123	reply = jabber_make_error_packet( node, "feature-not-implemented", "cancel", NULL );
[259edd4]	124	pack = 0;
[58b5f62]	125	}
[259edd4]	126	}
	127	else if( strcmp( type, "set" ) == 0 )
	128	{
[1c3008a]	129	if( ( c = xt_find_node( node->children, "si" ) ) &&
[aed152f]	130	( s = xt_find_attr( c, "xmlns" ) ) &&
	131	( strcmp( s, XMLNS_SI ) == 0 ) )
[2c2df7d]	132	{
	133	return jabber_si_handle_request( ic, node, c );
[1c3008a]	134	}
	135	else if( !( c = xt_find_node( node->children, "query" ) ) \|\|
	136	!( s = xt_find_attr( c, "xmlns" ) ) )
[dfa41a4]	137	{
	138	return XT_HANDLED;
[1c3008a]	139	}
	140	else if( strcmp( s, XMLNS_ROSTER ) == 0 )
[2c2df7d]	141	{
[9bcbe48]	142	/* This is a roster push. XMPP servers send this when someone
	143	was added to (or removed from) the buddy list. AFAIK they're
	144	sent even if we added this buddy in our own session. */
[0da65d5]	145	int bare_len = strlen( ic->acc->user );
[abbd8ed]	146
	147	if( ( s = xt_find_attr( node, "from" ) ) == NULL \|\|
[0da65d5]	148	( strncmp( s, ic->acc->user, bare_len ) == 0 &&
[abbd8ed]	149	( s[bare_len] == 0 \|\| s[bare_len] == '/' ) ) )
	150	{
[0da65d5]	151	jabber_parse_roster( ic, node, NULL );
[abbd8ed]	152
	153	/* Should we generate a reply here? Don't think it's
	154	very important... */
	155	}
	156	else
	157	{
[43462708]	158	imcb_log( ic, "Warning: %s tried to fake a roster push!", s ? s : "(unknown)" );
[abbd8ed]	159
	160	xt_free_node( reply );
[2c2df7d]	161	reply = jabber_make_error_packet( node, "not-allowed", "cancel", NULL );
[abbd8ed]	162	pack = 0;
	163	}
[1c3008a]	164	}
	165	else if( strcmp( s, XMLNS_BYTESTREAMS ) == 0 )
[2c2df7d]	166	{
[1c3008a]	167	/* Bytestream Request (stage 2 of file transfer) */
[2ff2076]	168	return jabber_bs_recv_request( ic, node, c );
[1c3008a]	169	}
	170	else
[dfa41a4]	171	{
	172	xt_free_node( reply );
[2c2df7d]	173	reply = jabber_make_error_packet( node, "feature-not-implemented", "cancel", NULL );
[dfa41a4]	174	pack = 0;
	175	}
[259edd4]	176	}
	177
	178	/* If we recognized the xmlns and managed to generate a reply,
	179	finish and send it. */
	180	if( reply )
	181	{
	182	/* Normally we still have to pack it into an iq-result
	183	packet, but for errors, for example, we don't. */
	184	if( pack )
[58b5f62]	185	{
	186	reply = jabber_make_packet( "iq", "result", xt_find_attr( node, "from" ), reply );
	187	if( ( s = xt_find_attr( node, "id" ) ) )
	188	xt_add_attr( reply, "id", s );
	189	}
[259edd4]	190
[0da65d5]	191	st = jabber_write_packet( ic, reply );
[259edd4]	192	xt_free_node( reply );
	193	if( !st )
	194	return XT_ABORT;
[58b5f62]	195	}
[70f6aab8]	196
[861c199]	197	return XT_HANDLED;
	198	}
	199
[0da65d5]	200	static xt_status jabber_do_iq_auth( struct im_connection ic, struct xt_node node, struct xt_node *orig );
	201	static xt_status jabber_finish_iq_auth( struct im_connection ic, struct xt_node node, struct xt_node *orig );
[861c199]	202
[0da65d5]	203	int jabber_init_iq_auth( struct im_connection *ic )
[861c199]	204	{
[0da65d5]	205	struct jabber_data *jd = ic->proto_data;
[861c199]	206	struct xt_node *node;
	207	int st;
[fe7a554]	208
[861c199]	209	node = xt_new_node( "query", NULL, xt_new_node( "username", jd->username, NULL ) );
[47d3ac4]	210	xt_add_attr( node, "xmlns", XMLNS_AUTH );
[861c199]	211	node = jabber_make_packet( "iq", "get", NULL, node );
	212
[0da65d5]	213	jabber_cache_add( ic, node, jabber_do_iq_auth );
	214	st = jabber_write_packet( ic, node );
[861c199]	215
	216	return st;
	217	}
	218
[0da65d5]	219	static xt_status jabber_do_iq_auth( struct im_connection ic, struct xt_node node, struct xt_node *orig )
[861c199]	220	{
[0da65d5]	221	struct jabber_data *jd = ic->proto_data;
[861c199]	222	struct xt_node reply, query;
	223	xt_status st;
	224	char *s;
	225
[9bcbe48]	226	if( !( query = xt_find_node( node->children, "query" ) ) )
	227	{
[43462708]	228	imcb_log( ic, "Warning: Received incomplete IQ packet while authenticating" );
[c2fb3809]	229	imc_logout( ic, FALSE );
[9bcbe48]	230	return XT_HANDLED;
	231	}
[861c199]	232
	233	/* Time to authenticate ourselves! */
	234	reply = xt_new_node( "query", NULL, NULL );
[47d3ac4]	235	xt_add_attr( reply, "xmlns", XMLNS_AUTH );
[861c199]	236	xt_add_child( reply, xt_new_node( "username", jd->username, NULL ) );
[0da65d5]	237	xt_add_child( reply, xt_new_node( "resource", set_getstr( &ic->acc->set, "resource" ), NULL ) );
[861c199]	238
	239	if( xt_find_node( query->children, "digest" ) && ( s = xt_find_attr( jd->xt->root, "id" ) ) )
[21167d2]	240	{
[861c199]	241	/* We can do digest authentication, it seems, and of
	242	course we prefer that. */
[77bfd07]	243	sha1_state_t sha;
[e727608]	244	char hash_hex[41];
[861c199]	245	unsigned char hash[20];
	246	int i;
[21167d2]	247
[77bfd07]	248	sha1_init( &sha );
	249	sha1_append( &sha, (unsigned char*) s, strlen( s ) );
	250	sha1_append( &sha, (unsigned char*) ic->acc->pass, strlen( ic->acc->pass ) );
	251	sha1_finish( &sha, hash );
[21167d2]	252
[861c199]	253	for( i = 0; i < 20; i ++ )
	254	sprintf( hash_hex + i * 2, "%02x", hash[i] );
[21167d2]	255
[861c199]	256	xt_add_child( reply, xt_new_node( "digest", hash_hex, NULL ) );
[21167d2]	257	}
[861c199]	258	else if( xt_find_node( query->children, "password" ) )
[0b4a0db]	259	{
[861c199]	260	/* We'll have to stick with plaintext. Let's hope we're using SSL/TLS... */
[0da65d5]	261	xt_add_child( reply, xt_new_node( "password", ic->acc->pass, NULL ) );
[0b4a0db]	262	}
[861c199]	263	else
[70f6aab8]	264	{
[861c199]	265	xt_free_node( reply );
[995913b]	266
[84b045d]	267	imcb_error( ic, "Can't find suitable authentication method" );
[c2fb3809]	268	imc_logout( ic, FALSE );
[861c199]	269	return XT_ABORT;
[70f6aab8]	270	}
[861c199]	271
	272	reply = jabber_make_packet( "iq", "set", NULL, reply );
[0da65d5]	273	jabber_cache_add( ic, reply, jabber_finish_iq_auth );
	274	st = jabber_write_packet( ic, reply );
[861c199]	275
	276	return st ? XT_HANDLED : XT_ABORT;
	277	}
	278
[0da65d5]	279	static xt_status jabber_finish_iq_auth( struct im_connection ic, struct xt_node node, struct xt_node *orig )
[861c199]	280	{
[0da65d5]	281	struct jabber_data *jd = ic->proto_data;
[9bcbe48]	282	char *type;
	283
	284	if( !( type = xt_find_attr( node, "type" ) ) )
	285	{
[43462708]	286	imcb_log( ic, "Warning: Received incomplete IQ packet while authenticating" );
[c2fb3809]	287	imc_logout( ic, FALSE );
[9bcbe48]	288	return XT_HANDLED;
	289	}
[861c199]	290
	291	if( strcmp( type, "error" ) == 0 )
[70f6aab8]	292	{
[84b045d]	293	imcb_error( ic, "Authentication failure" );
[c2fb3809]	294	imc_logout( ic, FALSE );
[861c199]	295	return XT_ABORT;
	296	}
	297	else if( strcmp( type, "result" ) == 0 )
	298	{
	299	/* This happens when we just successfully authenticated the
	300	old (non-SASL) way. */
	301	jd->flags \|= JFLAG_AUTHENTICATED;
[0da65d5]	302	if( !jabber_get_roster( ic ) )
[70f6aab8]	303	return XT_ABORT;
	304	}
[f06894d]	305
	306	return XT_HANDLED;
	307	}
	308
[0da65d5]	309	xt_status jabber_pkt_bind_sess( struct im_connection ic, struct xt_node node, struct xt_node *orig )
[21167d2]	310	{
[0da65d5]	311	struct jabber_data *jd = ic->proto_data;
[8fb1263]	312	struct xt_node c, reply = NULL;
[861c199]	313	char *s;
[21167d2]	314
[8fb1263]	315	if( node && ( c = xt_find_node( node->children, "bind" ) ) )
[861c199]	316	{
	317	c = xt_find_node( c->children, "jid" );
	318	if( c && c->text_len && ( s = strchr( c->text, '/' ) ) &&
[0da65d5]	319	strcmp( s + 1, set_getstr( &ic->acc->set, "resource" ) ) != 0 )
[84b045d]	320	imcb_log( ic, "Server changed session resource string to `%s'", s + 1 );
[861c199]	321	}
[21167d2]	322
[8fb1263]	323	if( jd->flags & JFLAG_WANT_BIND )
	324	{
	325	reply = xt_new_node( "bind", NULL, xt_new_node( "resource", set_getstr( &ic->acc->set, "resource" ), NULL ) );
	326	xt_add_attr( reply, "xmlns", XMLNS_BIND );
[315dd4c]	327	jd->flags &= ~JFLAG_WANT_BIND;
[8fb1263]	328	}
	329	else if( jd->flags & JFLAG_WANT_SESSION )
[861c199]	330	{
[8fb1263]	331	reply = xt_new_node( "session", NULL, NULL );
	332	xt_add_attr( reply, "xmlns", XMLNS_SESSION );
[315dd4c]	333	jd->flags &= ~JFLAG_WANT_SESSION;
[861c199]	334	}
[21167d2]	335
[8fb1263]	336	if( reply != NULL )
	337	{
	338	reply = jabber_make_packet( "iq", "set", NULL, reply );
	339	jabber_cache_add( ic, reply, jabber_pkt_bind_sess );
	340
	341	if( !jabber_write_packet( ic, reply ) )
	342	return XT_ABORT;
	343	}
	344	else if( ( jd->flags & ( JFLAG_WANT_BIND \| JFLAG_WANT_SESSION ) ) == 0 )
[861c199]	345	{
[0da65d5]	346	if( !jabber_get_roster( ic ) )
[861c199]	347	return XT_ABORT;
	348	}
[21167d2]	349
[861c199]	350	return XT_HANDLED;
[21167d2]	351	}
[70f6aab8]	352
[0da65d5]	353	int jabber_get_roster( struct im_connection *ic )
[70f6aab8]	354	{
	355	struct xt_node *node;
	356	int st;
	357
[84b045d]	358	imcb_log( ic, "Authenticated, requesting buddy list" );
[70f6aab8]	359
	360	node = xt_new_node( "query", NULL, NULL );
[47d3ac4]	361	xt_add_attr( node, "xmlns", XMLNS_ROSTER );
[70f6aab8]	362	node = jabber_make_packet( "iq", "get", NULL, node );
	363
[0da65d5]	364	jabber_cache_add( ic, node, jabber_parse_roster );
	365	st = jabber_write_packet( ic, node );
[70f6aab8]	366
	367	return st;
	368	}
[cfbb3a6]	369
[0da65d5]	370	static xt_status jabber_parse_roster( struct im_connection ic, struct xt_node node, struct xt_node *orig )
[861c199]	371	{
	372	struct xt_node query, c;
[abbd8ed]	373	int initial = ( orig != NULL );
[861c199]	374
[9bcbe48]	375	if( !( query = xt_find_node( node->children, "query" ) ) )
	376	{
[43462708]	377	imcb_log( ic, "Warning: Received NULL roster packet" );
[9bcbe48]	378	return XT_HANDLED;
	379	}
[861c199]	380
	381	c = query->children;
	382	while( ( c = xt_find_node( c, "item" ) ) )
	383	{
[dcd16c5]	384	struct xt_node *group = xt_find_node( c->children, "group" );
[861c199]	385	char *jid = xt_find_attr( c, "jid" );
	386	char *name = xt_find_attr( c, "name" );
	387	char *sub = xt_find_attr( c, "subscription" );
	388
[f0cb961]	389	if( jid && sub )
[abbd8ed]	390	{
	391	if( ( strcmp( sub, "both" ) == 0 \|\| strcmp( sub, "to" ) == 0 ) )
	392	{
[f5d87ea]	393	imcb_add_buddy( ic, jid, ( group && group->text_len ) ?
	394	group->text : NULL );
[f0cb961]	395
[d06eabf]	396	if( name )
	397	imcb_rename_buddy( ic, jid, name );
[abbd8ed]	398	}
	399	else if( strcmp( sub, "remove" ) == 0 )
	400	{
[0da65d5]	401	jabber_buddy_remove_bare( ic, jid );
[998b103]	402	imcb_remove_buddy( ic, jid, NULL );
[abbd8ed]	403	}
	404	}
[861c199]	405
	406	c = c->next;
	407	}
	408
[abbd8ed]	409	if( initial )
[84b045d]	410	imcb_connected( ic );
[861c199]	411
	412	return XT_HANDLED;
	413	}
	414
[0da65d5]	415	int jabber_get_vcard( struct im_connection ic, char bare_jid )
[1991be6]	416	{
	417	struct xt_node *node;
	418
	419	if( strchr( bare_jid, '/' ) )
	420	return 1; /* This was an error, but return 0 should only be done if the connection died... */
	421
	422	node = xt_new_node( "vCard", NULL, NULL );
[47d3ac4]	423	xt_add_attr( node, "xmlns", XMLNS_VCARD );
[1991be6]	424	node = jabber_make_packet( "iq", "get", bare_jid, node );
	425
[0da65d5]	426	jabber_cache_add( ic, node, jabber_iq_display_vcard );
	427	return jabber_write_packet( ic, node );
[1991be6]	428	}
	429
[0da65d5]	430	static xt_status jabber_iq_display_vcard( struct im_connection ic, struct xt_node node, struct xt_node *orig )
[1991be6]	431	{
[0da65d5]	432	struct xt_node vc, c, sc; / subchild, ic is already in use ;-) */
[1991be6]	433	GString *reply;
	434	char *s;
	435
	436	if( ( s = xt_find_attr( node, "type" ) ) == NULL \|\|
	437	strcmp( s, "result" ) != 0 \|\|
	438	( vc = xt_find_node( node->children, "vCard" ) ) == NULL )
	439	{
	440	s = xt_find_attr( orig, "to" ); /* If this returns NULL something's wrong.. */
[84b045d]	441	imcb_log( ic, "Could not retrieve vCard of %s", s ? s : "(NULL)" );
[1991be6]	442	return XT_HANDLED;
	443	}
	444
	445	s = xt_find_attr( orig, "to" );
	446	reply = g_string_new( "vCard information for " );
	447	reply = g_string_append( reply, s ? s : "(NULL)" );
	448	reply = g_string_append( reply, ":\n" );
	449
	450	/* I hate this format, I really do... */
	451
	452	if( ( c = xt_find_node( vc->children, "FN" ) ) && c->text_len )
	453	g_string_append_printf( reply, "Name: %s\n", c->text );
	454
	455	if( ( c = xt_find_node( vc->children, "N" ) ) && c->children )
	456	{
	457	reply = g_string_append( reply, "Full name:" );
	458
	459	if( ( sc = xt_find_node( c->children, "PREFIX" ) ) && sc->text_len )
	460	g_string_append_printf( reply, " %s", sc->text );
	461	if( ( sc = xt_find_node( c->children, "GIVEN" ) ) && sc->text_len )
	462	g_string_append_printf( reply, " %s", sc->text );
	463	if( ( sc = xt_find_node( c->children, "MIDDLE" ) ) && sc->text_len )
	464	g_string_append_printf( reply, " %s", sc->text );
	465	if( ( sc = xt_find_node( c->children, "FAMILY" ) ) && sc->text_len )
	466	g_string_append_printf( reply, " %s", sc->text );
	467	if( ( sc = xt_find_node( c->children, "SUFFIX" ) ) && sc->text_len )
	468	g_string_append_printf( reply, " %s", sc->text );
	469
	470	reply = g_string_append_c( reply, '\n' );
	471	}
	472
	473	if( ( c = xt_find_node( vc->children, "NICKNAME" ) ) && c->text_len )
	474	g_string_append_printf( reply, "Nickname: %s\n", c->text );
	475
	476	if( ( c = xt_find_node( vc->children, "BDAY" ) ) && c->text_len )
	477	g_string_append_printf( reply, "Date of birth: %s\n", c->text );
	478
	479	/* Slightly alternative use of for... ;-) */
	480	for( c = vc->children; ( c = xt_find_node( c, "EMAIL" ) ); c = c->next )
	481	{
	482	if( ( sc = xt_find_node( c->children, "USERID" ) ) == NULL \|\| sc->text_len == 0 )
	483	continue;
	484
	485	if( xt_find_node( c->children, "HOME" ) )
	486	s = "Home";
	487	else if( xt_find_node( c->children, "WORK" ) )
	488	s = "Work";
	489	else
	490	s = "Misc.";
	491
	492	g_string_append_printf( reply, "%s e-mail address: %s\n", s, sc->text );
	493	}
	494
	495	if( ( c = xt_find_node( vc->children, "URL" ) ) && c->text_len )
	496	g_string_append_printf( reply, "Homepage: %s\n", c->text );
	497
	498	/* Slightly alternative use of for... ;-) */
	499	for( c = vc->children; ( c = xt_find_node( c, "ADR" ) ); c = c->next )
	500	{
	501	if( xt_find_node( c->children, "HOME" ) )
	502	s = "Home";
	503	else if( xt_find_node( c->children, "WORK" ) )
	504	s = "Work";
	505	else
	506	s = "Misc.";
	507
	508	g_string_append_printf( reply, "%s address: ", s );
	509
	510	if( ( sc = xt_find_node( c->children, "STREET" ) ) && sc->text_len )
	511	g_string_append_printf( reply, "%s ", sc->text );
	512	if( ( sc = xt_find_node( c->children, "EXTADR" ) ) && sc->text_len )
	513	g_string_append_printf( reply, "%s, ", sc->text );
	514	if( ( sc = xt_find_node( c->children, "PCODE" ) ) && sc->text_len )
	515	g_string_append_printf( reply, "%s, ", sc->text );
	516	if( ( sc = xt_find_node( c->children, "LOCALITY" ) ) && sc->text_len )
	517	g_string_append_printf( reply, "%s, ", sc->text );
	518	if( ( sc = xt_find_node( c->children, "REGION" ) ) && sc->text_len )
	519	g_string_append_printf( reply, "%s, ", sc->text );
	520	if( ( sc = xt_find_node( c->children, "CTRY" ) ) && sc->text_len )
	521	g_string_append_printf( reply, "%s", sc->text );
	522
	523	if( reply->str[reply->len-2] == ',' )
	524	reply = g_string_truncate( reply, reply->len-2 );
	525
	526	reply = g_string_append_c( reply, '\n' );
	527	}
	528
	529	for( c = vc->children; ( c = xt_find_node( c, "TEL" ) ); c = c->next )
	530	{
	531	if( ( sc = xt_find_node( c->children, "NUMBER" ) ) == NULL \|\| sc->text_len == 0 )
	532	continue;
	533
	534	if( xt_find_node( c->children, "HOME" ) )
	535	s = "Home";
	536	else if( xt_find_node( c->children, "WORK" ) )
	537	s = "Work";
	538	else
	539	s = "Misc.";
	540
	541	g_string_append_printf( reply, "%s phone number: %s\n", s, sc->text );
	542	}
	543
	544	if( ( c = xt_find_node( vc->children, "DESC" ) ) && c->text_len )
	545	g_string_append_printf( reply, "Other information:\n%s", c->text );
	546
	547	/* sigh */
	548
[84b045d]	549	imcb_log( ic, "%s", reply->str );
[1991be6]	550	g_string_free( reply, TRUE );
	551
	552	return XT_HANDLED;
	553	}
	554
[a73e91a]	555	static xt_status jabber_add_to_roster_callback( struct im_connection ic, struct xt_node node, struct xt_node *orig );
	556
[46d215d]	557	int jabber_add_to_roster( struct im_connection ic, const char handle, const char name, const char group )
[cfbb3a6]	558	{
	559	struct xt_node *node;
	560	int st;
	561
	562	/* Build the item entry */
	563	node = xt_new_node( "item", NULL, NULL );
	564	xt_add_attr( node, "jid", handle );
	565	if( name )
	566	xt_add_attr( node, "name", name );
[46d215d]	567	if( group )
	568	xt_add_child( node, xt_new_node( "group", group, NULL ) );
[cfbb3a6]	569
	570	/* And pack it into a roster-add packet */
	571	node = xt_new_node( "query", NULL, node );
[47d3ac4]	572	xt_add_attr( node, "xmlns", XMLNS_ROSTER );
[cfbb3a6]	573	node = jabber_make_packet( "iq", "set", NULL, node );
[a73e91a]	574	jabber_cache_add( ic, node, jabber_add_to_roster_callback );
[cfbb3a6]	575
[0da65d5]	576	st = jabber_write_packet( ic, node );
[cfbb3a6]	577
	578	return st;
	579	}
	580
[a73e91a]	581	static xt_status jabber_add_to_roster_callback( struct im_connection ic, struct xt_node node, struct xt_node *orig )
	582	{
	583	char s, jid = NULL;
	584	struct xt_node *c;
	585
	586	if( ( c = xt_find_node( orig->children, "query" ) ) &&
	587	( c = xt_find_node( c->children, "item" ) ) &&
	588	( jid = xt_find_attr( c, "jid" ) ) &&
	589	( s = xt_find_attr( node, "type" ) ) &&
	590	strcmp( s, "result" ) == 0 )
	591	{
[17a6ee9]	592	if( bee_user_by_handle( ic->bee, ic, jid ) == NULL )
[a73e91a]	593	imcb_add_buddy( ic, jid, NULL );
	594	}
	595	else
	596	{
	597	imcb_log( ic, "Error while adding `%s' to your contact list.",
	598	jid ? jid : "(unknown handle)" );
	599	}
	600
	601	return XT_HANDLED;
	602	}
	603
[0da65d5]	604	int jabber_remove_from_roster( struct im_connection ic, char handle )
[cfbb3a6]	605	{
	606	struct xt_node *node;
	607	int st;
	608
	609	/* Build the item entry */
	610	node = xt_new_node( "item", NULL, NULL );
	611	xt_add_attr( node, "jid", handle );
	612	xt_add_attr( node, "subscription", "remove" );
	613
	614	/* And pack it into a roster-add packet */
	615	node = xt_new_node( "query", NULL, node );
[47d3ac4]	616	xt_add_attr( node, "xmlns", XMLNS_ROSTER );
[cfbb3a6]	617	node = jabber_make_packet( "iq", "set", NULL, node );
	618
[0da65d5]	619	st = jabber_write_packet( ic, node );
[cfbb3a6]	620
	621	xt_free_node( node );
	622	return st;
	623	}
[dc0ba9c]	624
	625	xt_status jabber_iq_parse_features( struct im_connection ic, struct xt_node node, struct xt_node *orig );
	626
	627	xt_status jabber_iq_query_features( struct im_connection ic, char bare_jid )
	628	{
	629	struct xt_node node, query;
	630	struct jabber_buddy *bud;
	631
	632	if( ( bud = jabber_buddy_by_jid( ic, bare_jid , 0 ) ) == NULL )
	633	{
	634	/* Who cares about the unknown... */
[4358b10]	635	imcb_log( ic, "Couldn't find buddy: %s", bare_jid);
[54a2014]	636	return XT_HANDLED;
[dc0ba9c]	637	}
	638
	639	if( bud->features ) /* been here already */
	640	return XT_HANDLED;
	641
	642	node = xt_new_node( "query", NULL, NULL );
	643	xt_add_attr( node, "xmlns", XMLNS_DISCO_INFO );
	644
	645	if( !( query = jabber_make_packet( "iq", "get", bare_jid, node ) ) )
	646	{
	647	imcb_log( ic, "WARNING: Couldn't generate feature query" );
	648	xt_free_node( node );
[54a2014]	649	return XT_HANDLED;
[dc0ba9c]	650	}
	651
	652	jabber_cache_add( ic, query, jabber_iq_parse_features );
	653
[54a2014]	654	return jabber_write_packet( ic, query ) ? XT_HANDLED : XT_ABORT;
[dc0ba9c]	655	}
	656
	657	xt_status jabber_iq_parse_features( struct im_connection ic, struct xt_node node, struct xt_node *orig )
	658	{
	659	struct xt_node *c;
	660	struct jabber_buddy *bud;
[c1a3c27]	661	char feature, xmlns, *from;
[dc0ba9c]	662
[699376f7]	663	if( !( from = xt_find_attr( node, "from" ) ) \|\|
	664	!( c = xt_find_node( node->children, "query" ) ) \|\|
[c1a3c27]	665	!( xmlns = xt_find_attr( c, "xmlns" ) ) \|\|
	666	!( strcmp( xmlns, XMLNS_DISCO_INFO ) == 0 ) )
[dc0ba9c]	667	{
	668	imcb_log( ic, "WARNING: Received incomplete IQ-result packet for discover" );
	669	return XT_HANDLED;
	670	}
[c1a3c27]	671	if( ( bud = jabber_buddy_by_jid( ic, from, 0 ) ) == NULL )
[dc0ba9c]	672	{
	673	/* Who cares about the unknown... */
[c1a3c27]	674	imcb_log( ic, "Couldn't find buddy: %s", from );
[54a2014]	675	return XT_HANDLED;
[dc0ba9c]	676	}
	677
	678	c = c->children;
[1c3008a]	679	while( ( c = xt_find_node( c, "feature" ) ) )
	680	{
[dc0ba9c]	681	feature = xt_find_attr( c, "var" );
[c1a3c27]	682	if( feature )
	683	bud->features = g_slist_append( bud->features, g_strdup( feature ) );
[dc0ba9c]	684	c = c->next;
	685	}
	686
	687	return XT_HANDLED;
	688	}
	689
	690	xt_status jabber_iq_parse_server_features( struct im_connection ic, struct xt_node node, struct xt_node *orig );
	691
	692	xt_status jabber_iq_query_server( struct im_connection ic, char jid, char *xmlns )
	693	{
	694	struct xt_node node, query;
	695	struct jabber_data *jd = ic->proto_data;
	696
	697	node = xt_new_node( "query", NULL, NULL );
	698	xt_add_attr( node, "xmlns", xmlns );
	699
	700	if( !( query = jabber_make_packet( "iq", "get", jid, node ) ) )
	701	{
	702	imcb_log( ic, "WARNING: Couldn't generate server query" );
	703	xt_free_node( node );
	704	}
	705
	706	jd->have_streamhosts--;
	707	jabber_cache_add( ic, query, jabber_iq_parse_server_features );
	708
[54a2014]	709	return jabber_write_packet( ic, query ) ? XT_HANDLED : XT_ABORT;
[dc0ba9c]	710	}
	711
	712	/*
	713	* Query the server for "items", query each "item" for identities, query each "item" that's a proxy for it's bytestream info
	714	*/
	715	xt_status jabber_iq_parse_server_features( struct im_connection ic, struct xt_node node, struct xt_node *orig )
	716	{
	717	struct xt_node *c;
	718	struct jabber_data *jd = ic->proto_data;
[c1a3c27]	719	char xmlns, from;
[dc0ba9c]	720
	721	if( !( c = xt_find_node( node->children, "query" ) ) \|\|
[c1a3c27]	722	!( from = xt_find_attr( node, "from" ) ) \|\|
	723	!( xmlns = xt_find_attr( c, "xmlns" ) ) )
[dc0ba9c]	724	{
	725	imcb_log( ic, "WARNING: Received incomplete IQ-result packet for discover" );
	726	return XT_HANDLED;
	727	}
	728
	729	jd->have_streamhosts++;
	730
[c1a3c27]	731	if( strcmp( xmlns, XMLNS_DISCO_ITEMS ) == 0 )
[dc0ba9c]	732	{
[c1a3c27]	733	char *itemjid;
[dc0ba9c]	734
	735	/* answer from server */
	736
	737	c = c->children;
	738	while( ( c = xt_find_node( c, "item" ) ) )
	739	{
	740	itemjid = xt_find_attr( c, "jid" );
[c1a3c27]	741
	742	if( itemjid )
	743	jabber_iq_query_server( ic, itemjid, XMLNS_DISCO_INFO );
[dc0ba9c]	744
	745	c = c->next;
	746	}
[1c3008a]	747	}
[42fc5b6]	748	else if( strcmp( xmlns, XMLNS_DISCO_INFO ) == 0 )
[dc0ba9c]	749	{
	750	char category, type;
	751
	752	/* answer from potential proxy */
	753
	754	c = c->children;
	755	while( ( c = xt_find_node( c, "identity" ) ) )
	756	{
	757	category = xt_find_attr( c, "category" );
	758	type = xt_find_attr( c, "type" );
	759
	760	if( type && ( strcmp( type, "bytestreams" ) == 0 ) &&
	761	category && ( strcmp( category, "proxy" ) == 0 ) )
[c1a3c27]	762	jabber_iq_query_server( ic, from, XMLNS_BYTESTREAMS );
[dc0ba9c]	763
	764	c = c->next;
	765	}
[1c3008a]	766	}
[42fc5b6]	767	else if( strcmp( xmlns, XMLNS_BYTESTREAMS ) == 0 )
[dc0ba9c]	768	{
[c1a3c27]	769	char host, jid, *port_s;
[dc0ba9c]	770	int port;
	771
	772	/* answer from proxy */
	773
	774	if( ( c = xt_find_node( c->children, "streamhost" ) ) &&
	775	( host = xt_find_attr( c, "host" ) ) &&
[c1a3c27]	776	( port_s = xt_find_attr( c, "port" ) ) &&
	777	( sscanf( port_s, "%d", &port ) == 1 ) &&
[dc0ba9c]	778	( jid = xt_find_attr( c, "jid" ) ) )
	779	{
	780	jabber_streamhost_t *sh = g_new0( jabber_streamhost_t, 1 );
[c1a3c27]	781
[dc0ba9c]	782	sh->jid = g_strdup( jid );
	783	sh->host = g_strdup( host );
[c1a3c27]	784	g_snprintf( sh->port, sizeof( sh->port ), "%u", port );
[dc0ba9c]	785
	786	imcb_log( ic, "Proxy found: jid %s host %s port %u", jid, host, port );
	787	jd->streamhosts = g_slist_append( jd->streamhosts, sh );
	788	}
	789	}
	790
	791	if( jd->have_streamhosts == 0 )
	792	jd->have_streamhosts++;
[1c3008a]	793
[dc0ba9c]	794	return XT_HANDLED;
	795	}

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