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source: protocols/jabber/iq.c @ 92a9c68

Last change on this file since 92a9c68 was 315dd4c, checked in by Wilmer van der Gaast <wilmer@…>, at 2010-03-15T01:25:47Z
Oops.. Today's Jabber fix could get stuck in a somewhat infinite loop if a Jabber server returns an empty <iq type="result"/> response to the session establishment request (which is valid and actually done by the example, but my test Jabberd shows different behaviour). Fixed.
Property mode set to `100644`
File size: 18.8 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	{
[529078a]	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	{
	67	xt_add_child( reply, xt_new_node( "name", "BitlBee", NULL ) );
	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	}
[529078a]	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	}
[47d3ac4]	93	else if( strcmp( s, XMLNS_DISCOVER ) == 0 )
[58b5f62]	94	{
[8c1eb80]	95	const char *features[] = { XMLNS_DISCOVER,
	96	XMLNS_VERSION,
[40ef702]	97	XMLNS_TIME,
	98	XMLNS_CHATSTATES,
	99	XMLNS_MUC,
[529078a]	100	XMLNS_PING,
[40ef702]	101	NULL };
	102	const char **f;
	103
[58b5f62]	104	c = xt_new_node( "identity", NULL, NULL );
	105	xt_add_attr( c, "category", "client" );
	106	xt_add_attr( c, "type", "pc" );
	107	xt_add_attr( c, "name", "BitlBee" );
	108	xt_add_child( reply, c );
	109
[40ef702]	110	for( f = features; *f; f ++ )
	111	{
	112	c = xt_new_node( "feature", NULL, NULL );
	113	xt_add_attr( c, "var", *f );
	114	xt_add_child( reply, c );
	115	}
[58b5f62]	116	}
	117	else
	118	{
	119	xt_free_node( reply );
[259edd4]	120	reply = jabber_make_error_packet( node, "feature-not-implemented", "cancel" );
	121	pack = 0;
[58b5f62]	122	}
[259edd4]	123	}
	124	else if( strcmp( type, "set" ) == 0 )
	125	{
[dfa41a4]	126	if( !( c = xt_find_node( node->children, "query" ) ) \|\|
	127	!( s = xt_find_attr( c, "xmlns" ) ) )
	128	{
[43462708]	129	imcb_log( ic, "Warning: Received incomplete IQ-%s packet", type );
[dfa41a4]	130	return XT_HANDLED;
	131	}
	132
[9bcbe48]	133	/* This is a roster push. XMPP servers send this when someone
	134	was added to (or removed from) the buddy list. AFAIK they're
	135	sent even if we added this buddy in our own session. */
[47d3ac4]	136	if( strcmp( s, XMLNS_ROSTER ) == 0 )
[dfa41a4]	137	{
[0da65d5]	138	int bare_len = strlen( ic->acc->user );
[abbd8ed]	139
	140	if( ( s = xt_find_attr( node, "from" ) ) == NULL \|\|
[0da65d5]	141	( strncmp( s, ic->acc->user, bare_len ) == 0 &&
[abbd8ed]	142	( s[bare_len] == 0 \|\| s[bare_len] == '/' ) ) )
	143	{
[0da65d5]	144	jabber_parse_roster( ic, node, NULL );
[abbd8ed]	145
	146	/* Should we generate a reply here? Don't think it's
	147	very important... */
	148	}
	149	else
	150	{
[43462708]	151	imcb_log( ic, "Warning: %s tried to fake a roster push!", s ? s : "(unknown)" );
[abbd8ed]	152
	153	xt_free_node( reply );
	154	reply = jabber_make_error_packet( node, "not-allowed", "cancel" );
	155	pack = 0;
	156	}
[dfa41a4]	157	}
	158	else
	159	{
	160	xt_free_node( reply );
	161	reply = jabber_make_error_packet( node, "feature-not-implemented", "cancel" );
	162	pack = 0;
	163	}
[259edd4]	164	}
	165
	166	/* If we recognized the xmlns and managed to generate a reply,
	167	finish and send it. */
	168	if( reply )
	169	{
	170	/* Normally we still have to pack it into an iq-result
	171	packet, but for errors, for example, we don't. */
	172	if( pack )
[58b5f62]	173	{
	174	reply = jabber_make_packet( "iq", "result", xt_find_attr( node, "from" ), reply );
	175	if( ( s = xt_find_attr( node, "id" ) ) )
	176	xt_add_attr( reply, "id", s );
	177	}
[259edd4]	178
[0da65d5]	179	st = jabber_write_packet( ic, reply );
[259edd4]	180	xt_free_node( reply );
	181	if( !st )
	182	return XT_ABORT;
[58b5f62]	183	}
[70f6aab8]	184
[861c199]	185	return XT_HANDLED;
	186	}
	187
[0da65d5]	188	static xt_status jabber_do_iq_auth( struct im_connection ic, struct xt_node node, struct xt_node *orig );
	189	static xt_status jabber_finish_iq_auth( struct im_connection ic, struct xt_node node, struct xt_node *orig );
[861c199]	190
[0da65d5]	191	int jabber_init_iq_auth( struct im_connection *ic )
[861c199]	192	{
[0da65d5]	193	struct jabber_data *jd = ic->proto_data;
[861c199]	194	struct xt_node *node;
	195	int st;
[fe7a554]	196
[861c199]	197	node = xt_new_node( "query", NULL, xt_new_node( "username", jd->username, NULL ) );
[47d3ac4]	198	xt_add_attr( node, "xmlns", XMLNS_AUTH );
[861c199]	199	node = jabber_make_packet( "iq", "get", NULL, node );
	200
[0da65d5]	201	jabber_cache_add( ic, node, jabber_do_iq_auth );
	202	st = jabber_write_packet( ic, node );
[861c199]	203
	204	return st;
	205	}
	206
[0da65d5]	207	static xt_status jabber_do_iq_auth( struct im_connection ic, struct xt_node node, struct xt_node *orig )
[861c199]	208	{
[0da65d5]	209	struct jabber_data *jd = ic->proto_data;
[861c199]	210	struct xt_node reply, query;
	211	xt_status st;
	212	char *s;
	213
[9bcbe48]	214	if( !( query = xt_find_node( node->children, "query" ) ) )
	215	{
[43462708]	216	imcb_log( ic, "Warning: Received incomplete IQ packet while authenticating" );
[c2fb3809]	217	imc_logout( ic, FALSE );
[9bcbe48]	218	return XT_HANDLED;
	219	}
[861c199]	220
	221	/* Time to authenticate ourselves! */
	222	reply = xt_new_node( "query", NULL, NULL );
[47d3ac4]	223	xt_add_attr( reply, "xmlns", XMLNS_AUTH );
[861c199]	224	xt_add_child( reply, xt_new_node( "username", jd->username, NULL ) );
[0da65d5]	225	xt_add_child( reply, xt_new_node( "resource", set_getstr( &ic->acc->set, "resource" ), NULL ) );
[861c199]	226
	227	if( xt_find_node( query->children, "digest" ) && ( s = xt_find_attr( jd->xt->root, "id" ) ) )
[21167d2]	228	{
[861c199]	229	/* We can do digest authentication, it seems, and of
	230	course we prefer that. */
[77bfd07]	231	sha1_state_t sha;
[e727608]	232	char hash_hex[41];
[861c199]	233	unsigned char hash[20];
	234	int i;
[21167d2]	235
[77bfd07]	236	sha1_init( &sha );
	237	sha1_append( &sha, (unsigned char*) s, strlen( s ) );
	238	sha1_append( &sha, (unsigned char*) ic->acc->pass, strlen( ic->acc->pass ) );
	239	sha1_finish( &sha, hash );
[21167d2]	240
[861c199]	241	for( i = 0; i < 20; i ++ )
	242	sprintf( hash_hex + i * 2, "%02x", hash[i] );
[21167d2]	243
[861c199]	244	xt_add_child( reply, xt_new_node( "digest", hash_hex, NULL ) );
[21167d2]	245	}
[861c199]	246	else if( xt_find_node( query->children, "password" ) )
[0b4a0db]	247	{
[861c199]	248	/* We'll have to stick with plaintext. Let's hope we're using SSL/TLS... */
[0da65d5]	249	xt_add_child( reply, xt_new_node( "password", ic->acc->pass, NULL ) );
[0b4a0db]	250	}
[861c199]	251	else
[70f6aab8]	252	{
[861c199]	253	xt_free_node( reply );
[995913b]	254
[84b045d]	255	imcb_error( ic, "Can't find suitable authentication method" );
[c2fb3809]	256	imc_logout( ic, FALSE );
[861c199]	257	return XT_ABORT;
[70f6aab8]	258	}
[861c199]	259
	260	reply = jabber_make_packet( "iq", "set", NULL, reply );
[0da65d5]	261	jabber_cache_add( ic, reply, jabber_finish_iq_auth );
	262	st = jabber_write_packet( ic, reply );
[861c199]	263
	264	return st ? XT_HANDLED : XT_ABORT;
	265	}
	266
[0da65d5]	267	static xt_status jabber_finish_iq_auth( struct im_connection ic, struct xt_node node, struct xt_node *orig )
[861c199]	268	{
[0da65d5]	269	struct jabber_data *jd = ic->proto_data;
[9bcbe48]	270	char *type;
	271
	272	if( !( type = xt_find_attr( node, "type" ) ) )
	273	{
[43462708]	274	imcb_log( ic, "Warning: Received incomplete IQ packet while authenticating" );
[c2fb3809]	275	imc_logout( ic, FALSE );
[9bcbe48]	276	return XT_HANDLED;
	277	}
[861c199]	278
	279	if( strcmp( type, "error" ) == 0 )
[70f6aab8]	280	{
[84b045d]	281	imcb_error( ic, "Authentication failure" );
[c2fb3809]	282	imc_logout( ic, FALSE );
[861c199]	283	return XT_ABORT;
	284	}
	285	else if( strcmp( type, "result" ) == 0 )
	286	{
	287	/* This happens when we just successfully authenticated the
	288	old (non-SASL) way. */
	289	jd->flags \|= JFLAG_AUTHENTICATED;
[0da65d5]	290	if( !jabber_get_roster( ic ) )
[70f6aab8]	291	return XT_ABORT;
	292	}
[f06894d]	293
	294	return XT_HANDLED;
	295	}
	296
[0da65d5]	297	xt_status jabber_pkt_bind_sess( struct im_connection ic, struct xt_node node, struct xt_node *orig )
[21167d2]	298	{
[0da65d5]	299	struct jabber_data *jd = ic->proto_data;
[8fb1263]	300	struct xt_node c, reply = NULL;
[861c199]	301	char *s;
[21167d2]	302
[8fb1263]	303	if( node && ( c = xt_find_node( node->children, "bind" ) ) )
[861c199]	304	{
	305	c = xt_find_node( c->children, "jid" );
	306	if( c && c->text_len && ( s = strchr( c->text, '/' ) ) &&
[0da65d5]	307	strcmp( s + 1, set_getstr( &ic->acc->set, "resource" ) ) != 0 )
[84b045d]	308	imcb_log( ic, "Server changed session resource string to `%s'", s + 1 );
[861c199]	309	}
[21167d2]	310
[8fb1263]	311	if( jd->flags & JFLAG_WANT_BIND )
	312	{
	313	reply = xt_new_node( "bind", NULL, xt_new_node( "resource", set_getstr( &ic->acc->set, "resource" ), NULL ) );
	314	xt_add_attr( reply, "xmlns", XMLNS_BIND );
[315dd4c]	315	jd->flags &= ~JFLAG_WANT_BIND;
[8fb1263]	316	}
	317	else if( jd->flags & JFLAG_WANT_SESSION )
	318	{
	319	reply = xt_new_node( "session", NULL, NULL );
	320	xt_add_attr( reply, "xmlns", XMLNS_SESSION );
[315dd4c]	321	jd->flags &= ~JFLAG_WANT_SESSION;
[8fb1263]	322	}
	323
	324	if( reply != NULL )
	325	{
	326	reply = jabber_make_packet( "iq", "set", NULL, reply );
	327	jabber_cache_add( ic, reply, jabber_pkt_bind_sess );
	328
	329	if( !jabber_write_packet( ic, reply ) )
	330	return XT_ABORT;
	331	}
	332	else if( ( jd->flags & ( JFLAG_WANT_BIND \| JFLAG_WANT_SESSION ) ) == 0 )
[861c199]	333	{
[0da65d5]	334	if( !jabber_get_roster( ic ) )
[861c199]	335	return XT_ABORT;
	336	}
[21167d2]	337
[861c199]	338	return XT_HANDLED;
[21167d2]	339	}
[70f6aab8]	340
[0da65d5]	341	int jabber_get_roster( struct im_connection *ic )
[70f6aab8]	342	{
	343	struct xt_node *node;
	344	int st;
	345
[84b045d]	346	imcb_log( ic, "Authenticated, requesting buddy list" );
[70f6aab8]	347
	348	node = xt_new_node( "query", NULL, NULL );
[47d3ac4]	349	xt_add_attr( node, "xmlns", XMLNS_ROSTER );
[70f6aab8]	350	node = jabber_make_packet( "iq", "get", NULL, node );
	351
[0da65d5]	352	jabber_cache_add( ic, node, jabber_parse_roster );
	353	st = jabber_write_packet( ic, node );
[70f6aab8]	354
	355	return st;
	356	}
[cfbb3a6]	357
[0da65d5]	358	static xt_status jabber_parse_roster( struct im_connection ic, struct xt_node node, struct xt_node *orig )
[861c199]	359	{
	360	struct xt_node query, c;
[abbd8ed]	361	int initial = ( orig != NULL );
[861c199]	362
[9bcbe48]	363	if( !( query = xt_find_node( node->children, "query" ) ) )
	364	{
[43462708]	365	imcb_log( ic, "Warning: Received NULL roster packet" );
[9bcbe48]	366	return XT_HANDLED;
	367	}
[861c199]	368
	369	c = query->children;
	370	while( ( c = xt_find_node( c, "item" ) ) )
	371	{
[f0cb961]	372	struct xt_node *group = xt_find_node( node->children, "group" );
[861c199]	373	char *jid = xt_find_attr( c, "jid" );
	374	char *name = xt_find_attr( c, "name" );
	375	char *sub = xt_find_attr( c, "subscription" );
	376
[f0cb961]	377	if( jid && sub )
[abbd8ed]	378	{
	379	if( ( strcmp( sub, "both" ) == 0 \|\| strcmp( sub, "to" ) == 0 ) )
	380	{
[f0cb961]	381	if( initial \|\| imcb_find_buddy( ic, jid ) == NULL )
	382	imcb_add_buddy( ic, jid, ( group && group->text_len ) ?
	383	group->text : NULL );
	384
[d06eabf]	385	if( name )
	386	imcb_rename_buddy( ic, jid, name );
[abbd8ed]	387	}
	388	else if( strcmp( sub, "remove" ) == 0 )
	389	{
[0da65d5]	390	jabber_buddy_remove_bare( ic, jid );
[998b103]	391	imcb_remove_buddy( ic, jid, NULL );
[abbd8ed]	392	}
	393	}
[861c199]	394
	395	c = c->next;
	396	}
	397
[abbd8ed]	398	if( initial )
[84b045d]	399	imcb_connected( ic );
[861c199]	400
	401	return XT_HANDLED;
	402	}
	403
[0da65d5]	404	int jabber_get_vcard( struct im_connection ic, char bare_jid )
[1991be6]	405	{
	406	struct xt_node *node;
	407
	408	if( strchr( bare_jid, '/' ) )
	409	return 1; /* This was an error, but return 0 should only be done if the connection died... */
	410
	411	node = xt_new_node( "vCard", NULL, NULL );
[47d3ac4]	412	xt_add_attr( node, "xmlns", XMLNS_VCARD );
[1991be6]	413	node = jabber_make_packet( "iq", "get", bare_jid, node );
	414
[0da65d5]	415	jabber_cache_add( ic, node, jabber_iq_display_vcard );
	416	return jabber_write_packet( ic, node );
[1991be6]	417	}
	418
[0da65d5]	419	static xt_status jabber_iq_display_vcard( struct im_connection ic, struct xt_node node, struct xt_node *orig )
[1991be6]	420	{
[0da65d5]	421	struct xt_node vc, c, sc; / subchild, ic is already in use ;-) */
[1991be6]	422	GString *reply;
	423	char *s;
	424
	425	if( ( s = xt_find_attr( node, "type" ) ) == NULL \|\|
	426	strcmp( s, "result" ) != 0 \|\|
	427	( vc = xt_find_node( node->children, "vCard" ) ) == NULL )
	428	{
	429	s = xt_find_attr( orig, "to" ); /* If this returns NULL something's wrong.. */
[84b045d]	430	imcb_log( ic, "Could not retrieve vCard of %s", s ? s : "(NULL)" );
[1991be6]	431	return XT_HANDLED;
	432	}
	433
	434	s = xt_find_attr( orig, "to" );
	435	reply = g_string_new( "vCard information for " );
	436	reply = g_string_append( reply, s ? s : "(NULL)" );
	437	reply = g_string_append( reply, ":\n" );
	438
	439	/* I hate this format, I really do... */
	440
	441	if( ( c = xt_find_node( vc->children, "FN" ) ) && c->text_len )
	442	g_string_append_printf( reply, "Name: %s\n", c->text );
	443
	444	if( ( c = xt_find_node( vc->children, "N" ) ) && c->children )
	445	{
	446	reply = g_string_append( reply, "Full name:" );
	447
	448	if( ( sc = xt_find_node( c->children, "PREFIX" ) ) && sc->text_len )
	449	g_string_append_printf( reply, " %s", sc->text );
	450	if( ( sc = xt_find_node( c->children, "GIVEN" ) ) && sc->text_len )
	451	g_string_append_printf( reply, " %s", sc->text );
	452	if( ( sc = xt_find_node( c->children, "MIDDLE" ) ) && sc->text_len )
	453	g_string_append_printf( reply, " %s", sc->text );
	454	if( ( sc = xt_find_node( c->children, "FAMILY" ) ) && sc->text_len )
	455	g_string_append_printf( reply, " %s", sc->text );
	456	if( ( sc = xt_find_node( c->children, "SUFFIX" ) ) && sc->text_len )
	457	g_string_append_printf( reply, " %s", sc->text );
	458
	459	reply = g_string_append_c( reply, '\n' );
	460	}
	461
	462	if( ( c = xt_find_node( vc->children, "NICKNAME" ) ) && c->text_len )
	463	g_string_append_printf( reply, "Nickname: %s\n", c->text );
	464
	465	if( ( c = xt_find_node( vc->children, "BDAY" ) ) && c->text_len )
	466	g_string_append_printf( reply, "Date of birth: %s\n", c->text );
	467
	468	/* Slightly alternative use of for... ;-) */
	469	for( c = vc->children; ( c = xt_find_node( c, "EMAIL" ) ); c = c->next )
	470	{
	471	if( ( sc = xt_find_node( c->children, "USERID" ) ) == NULL \|\| sc->text_len == 0 )
	472	continue;
	473
	474	if( xt_find_node( c->children, "HOME" ) )
	475	s = "Home";
	476	else if( xt_find_node( c->children, "WORK" ) )
	477	s = "Work";
	478	else
	479	s = "Misc.";
	480
	481	g_string_append_printf( reply, "%s e-mail address: %s\n", s, sc->text );
	482	}
	483
	484	if( ( c = xt_find_node( vc->children, "URL" ) ) && c->text_len )
	485	g_string_append_printf( reply, "Homepage: %s\n", c->text );
	486
	487	/* Slightly alternative use of for... ;-) */
	488	for( c = vc->children; ( c = xt_find_node( c, "ADR" ) ); c = c->next )
	489	{
	490	if( xt_find_node( c->children, "HOME" ) )
	491	s = "Home";
	492	else if( xt_find_node( c->children, "WORK" ) )
	493	s = "Work";
	494	else
	495	s = "Misc.";
	496
	497	g_string_append_printf( reply, "%s address: ", s );
	498
	499	if( ( sc = xt_find_node( c->children, "STREET" ) ) && sc->text_len )
	500	g_string_append_printf( reply, "%s ", sc->text );
	501	if( ( sc = xt_find_node( c->children, "EXTADR" ) ) && sc->text_len )
	502	g_string_append_printf( reply, "%s, ", sc->text );
	503	if( ( sc = xt_find_node( c->children, "PCODE" ) ) && sc->text_len )
	504	g_string_append_printf( reply, "%s, ", sc->text );
	505	if( ( sc = xt_find_node( c->children, "LOCALITY" ) ) && sc->text_len )
	506	g_string_append_printf( reply, "%s, ", sc->text );
	507	if( ( sc = xt_find_node( c->children, "REGION" ) ) && sc->text_len )
	508	g_string_append_printf( reply, "%s, ", sc->text );
	509	if( ( sc = xt_find_node( c->children, "CTRY" ) ) && sc->text_len )
	510	g_string_append_printf( reply, "%s", sc->text );
	511
	512	if( reply->str[reply->len-2] == ',' )
	513	reply = g_string_truncate( reply, reply->len-2 );
	514
	515	reply = g_string_append_c( reply, '\n' );
	516	}
	517
	518	for( c = vc->children; ( c = xt_find_node( c, "TEL" ) ); c = c->next )
	519	{
	520	if( ( sc = xt_find_node( c->children, "NUMBER" ) ) == NULL \|\| sc->text_len == 0 )
	521	continue;
	522
	523	if( xt_find_node( c->children, "HOME" ) )
	524	s = "Home";
	525	else if( xt_find_node( c->children, "WORK" ) )
	526	s = "Work";
	527	else
	528	s = "Misc.";
	529
	530	g_string_append_printf( reply, "%s phone number: %s\n", s, sc->text );
	531	}
	532
	533	if( ( c = xt_find_node( vc->children, "DESC" ) ) && c->text_len )
	534	g_string_append_printf( reply, "Other information:\n%s", c->text );
	535
	536	/* sigh */
	537
[84b045d]	538	imcb_log( ic, "%s", reply->str );
[1991be6]	539	g_string_free( reply, TRUE );
	540
	541	return XT_HANDLED;
	542	}
	543
[a73e91a]	544	static xt_status jabber_add_to_roster_callback( struct im_connection ic, struct xt_node node, struct xt_node *orig );
	545
[0da65d5]	546	int jabber_add_to_roster( struct im_connection ic, char handle, char *name )
[cfbb3a6]	547	{
	548	struct xt_node *node;
	549	int st;
	550
	551	/* Build the item entry */
	552	node = xt_new_node( "item", NULL, NULL );
	553	xt_add_attr( node, "jid", handle );
	554	if( name )
	555	xt_add_attr( node, "name", name );
	556
	557	/* And pack it into a roster-add packet */
	558	node = xt_new_node( "query", NULL, node );
[47d3ac4]	559	xt_add_attr( node, "xmlns", XMLNS_ROSTER );
[cfbb3a6]	560	node = jabber_make_packet( "iq", "set", NULL, node );
[a73e91a]	561	jabber_cache_add( ic, node, jabber_add_to_roster_callback );
[cfbb3a6]	562
[0da65d5]	563	st = jabber_write_packet( ic, node );
[cfbb3a6]	564
	565	return st;
	566	}
	567
[a73e91a]	568	static xt_status jabber_add_to_roster_callback( struct im_connection ic, struct xt_node node, struct xt_node *orig )
	569	{
	570	char s, jid = NULL;
	571	struct xt_node *c;
	572
	573	if( ( c = xt_find_node( orig->children, "query" ) ) &&
	574	( c = xt_find_node( c->children, "item" ) ) &&
	575	( jid = xt_find_attr( c, "jid" ) ) &&
	576	( s = xt_find_attr( node, "type" ) ) &&
	577	strcmp( s, "result" ) == 0 )
	578	{
	579	if( imcb_find_buddy( ic, jid ) == NULL )
	580	imcb_add_buddy( ic, jid, NULL );
	581	}
	582	else
	583	{
	584	imcb_log( ic, "Error while adding `%s' to your contact list.",
	585	jid ? jid : "(unknown handle)" );
	586	}
	587
	588	return XT_HANDLED;
	589	}
	590
[0da65d5]	591	int jabber_remove_from_roster( struct im_connection ic, char handle )
[cfbb3a6]	592	{
	593	struct xt_node *node;
	594	int st;
	595
	596	/* Build the item entry */
	597	node = xt_new_node( "item", NULL, NULL );
	598	xt_add_attr( node, "jid", handle );
	599	xt_add_attr( node, "subscription", "remove" );
	600
	601	/* And pack it into a roster-add packet */
	602	node = xt_new_node( "query", NULL, node );
[47d3ac4]	603	xt_add_attr( node, "xmlns", XMLNS_ROSTER );
[cfbb3a6]	604	node = jabber_make_packet( "iq", "set", NULL, node );
	605
[0da65d5]	606	st = jabber_write_packet( ic, node );
[cfbb3a6]	607
	608	xt_free_node( node );
	609	return st;
	610	}

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