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source: protocols/jabber/si.c @ 8240840

Last change on this file since 8240840 was 17a6ee9, checked in by Wilmer van der Gaast <wilmer@…>, at 2010-04-11T14:37:06Z
Including DCC stuff again, with a wonderful extra layer of abstraction. Some hooks are missing so sending files doesn't work yet. Receiving also still seems to have some issues. On the plus side, at least the MSN/Jabber modules work again.
Property mode set to `100644`
File size: 16.9 KB

Rev	Line
[2c2df7d]	1	/***************************************************************************\
	2	* *
	3	* BitlBee - An IRC to IM gateway *
	4	* Jabber module - SI packets *
	5	* *
	6	* Copyright 2007 Uli Meis <a.sporto+bee@gmail.com> *
	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	#include "sha1.h"
	26
	27	void jabber_si_answer_request( file_transfer_t *ft );
[2ff2076]	28	int jabber_si_send_request(struct im_connection ic, char who, struct jabber_transfer *tf );
[2c2df7d]	29
[2ff2076]	30	/* file_transfer free() callback */
[2c2df7d]	31	void jabber_si_free_transfer( file_transfer_t *ft)
	32	{
	33	struct jabber_transfer *tf = ft->data;
	34	struct jabber_data *jd = tf->ic->proto_data;
	35
	36	if ( tf->watch_in )
	37	b_event_remove( tf->watch_in );
	38
	39	jd->filetransfers = g_slist_remove( jd->filetransfers, tf );
	40
[8a90001]	41	if( tf->fd != -1 )
[2c2df7d]	42	{
[b8a491d]	43	closesocket( tf->fd );
[8a90001]	44	tf->fd = -1;
[2c2df7d]	45	}
	46
[b5cfc2b]	47	if( tf->disco_timeout )
	48	b_event_remove( tf->disco_timeout );
	49
[2c2df7d]	50	g_free( tf->ini_jid );
	51	g_free( tf->tgt_jid );
	52	g_free( tf->iq_id );
	53	g_free( tf->sid );
[78d254f1]	54	g_free( tf );
[2c2df7d]	55	}
	56
[2ff2076]	57	/* file_transfer canceled() callback */
[2c2df7d]	58	void jabber_si_canceled( file_transfer_t ft, char reason )
	59	{
	60	struct jabber_transfer *tf = ft->data;
	61	struct xt_node reply, iqnode;
	62
	63	if( tf->accepted )
	64	return;
	65
	66	iqnode = jabber_make_packet( "iq", "error", tf->ini_jid, NULL );
	67	xt_add_attr( iqnode, "id", tf->iq_id );
	68	reply = jabber_make_error_packet( iqnode, "forbidden", "cancel", "403" );
	69	xt_free_node( iqnode );
	70
	71	if( !jabber_write_packet( tf->ic, reply ) )
	72	imcb_log( tf->ic, "WARNING: Error generating reply to file transfer request" );
	73	xt_free_node( reply );
	74
	75	}
	76
[b5cfc2b]	77	int jabber_si_check_features( struct jabber_transfer tf, GSList features ) {
	78	int foundft = FALSE, foundbt = FALSE, foundsi = FALSE;
	79
	80	while ( features )
	81	{
	82	if( !strcmp( features->data, XMLNS_FILETRANSFER ) )
	83	foundft = TRUE;
	84	if( !strcmp( features->data, XMLNS_BYTESTREAMS ) )
	85	foundbt = TRUE;
	86	if( !strcmp( features->data, XMLNS_SI ) )
	87	foundsi = TRUE;
	88
	89	features = g_slist_next(features);
	90	}
	91
	92	if( !foundft )
[17a6ee9]	93	imcb_file_canceled( tf->ic, tf->ft, "Buddy's client doesn't feature file transfers" );
[b5cfc2b]	94	else if( !foundbt )
[17a6ee9]	95	imcb_file_canceled( tf->ic, tf->ft, "Buddy's client doesn't feature byte streams (required)" );
[b5cfc2b]	96	else if( !foundsi )
[17a6ee9]	97	imcb_file_canceled( tf->ic, tf->ft, "Buddy's client doesn't feature stream initiation (required)" );
[b5cfc2b]	98
	99	return foundft && foundbt && foundsi;
	100	}
	101
	102	void jabber_si_transfer_start( struct jabber_transfer *tf ) {
	103
	104	if( !jabber_si_check_features( tf, tf->bud->features ) )
	105	return;
	106
	107	/* send the request to our buddy */
	108	jabber_si_send_request( tf->ic, tf->bud->full_jid, tf );
	109
	110	/* and start the receive logic */
[17a6ee9]	111	imcb_file_recv_start( tf->ic, tf->ft );
[b5cfc2b]	112
	113	}
	114
	115	gboolean jabber_si_waitfor_disco( gpointer data, gint fd, b_input_condition cond )
	116	{
	117	struct jabber_transfer *tf = data;
	118	struct jabber_data *jd = tf->ic->proto_data;
	119
	120	tf->disco_timeout_fired++;
	121
	122	if( tf->bud->features && jd->have_streamhosts==1 ) {
	123	tf->disco_timeout = 0;
[8a90001]	124	jabber_si_transfer_start( tf );
[b5cfc2b]	125	return FALSE;
	126	}
	127
	128	/* 8 seconds should be enough for server and buddy to respond */
	129	if ( tf->disco_timeout_fired < 16 )
	130	return TRUE;
	131
	132	if( !tf->bud->features && jd->have_streamhosts!=1 )
[8a90001]	133	imcb_log( tf->ic, "Couldn't get buddy's features nor discover all services of the server" );
[b5cfc2b]	134	else if( !tf->bud->features )
[8a90001]	135	imcb_log( tf->ic, "Couldn't get buddy's features" );
[b5cfc2b]	136	else
[8a90001]	137	imcb_log( tf->ic, "Couldn't discover some of the server's services" );
[b5cfc2b]	138
	139	tf->disco_timeout = 0;
[8a90001]	140	jabber_si_transfer_start( tf );
[b5cfc2b]	141	return FALSE;
	142	}
	143
[2ff2076]	144	void jabber_si_transfer_request( struct im_connection ic, file_transfer_t ft, char *who )
	145	{
	146	struct jabber_transfer *tf;
	147	struct jabber_data *jd = ic->proto_data;
[b5cfc2b]	148	struct jabber_buddy *bud;
	149	char server = jd->server, s;
	150
	151	if( ( s = strchr( who, '=' ) ) && jabber_chat_by_jid( ic, s + 1 ) )
	152	bud = jabber_buddy_by_ext_jid( ic, who, 0 );
	153	else
	154	bud = jabber_buddy_by_jid( ic, who, 0 );
[2ff2076]	155
[b5cfc2b]	156	if( bud == NULL )
	157	{
[17a6ee9]	158	imcb_file_canceled( ic, ft, "Couldn't find buddy (BUG?)" );
[b5cfc2b]	159	return;
	160	}
[b8a491d]	161
[dce3903]	162	imcb_log( ic, "Trying to send %s(%zd bytes) to %s", ft->file_name, ft->file_size, who );
[2ff2076]	163
	164	tf = g_new0( struct jabber_transfer, 1 );
	165
	166	tf->ic = ic;
	167	tf->ft = ft;
[8a90001]	168	tf->fd = -1;
[2ff2076]	169	tf->ft->data = tf;
	170	tf->ft->free = jabber_si_free_transfer;
[b5cfc2b]	171	tf->bud = bud;
[2ff2076]	172	ft->write = jabber_bs_send_write;
	173
	174	jd->filetransfers = g_slist_prepend( jd->filetransfers, tf );
	175
[b5cfc2b]	176	/* query buddy's features and server's streaming proxies if neccessary */
[dc0ba9c]	177
[b5cfc2b]	178	if( !tf->bud->features )
	179	jabber_iq_query_features( ic, bud->full_jid );
[dc0ba9c]	180
[8a90001]	181	/* If <auto> is not set don't check for proxies */
	182	if( ( jd->have_streamhosts!=1 ) && ( jd->streamhosts==NULL ) &&
	183	( strstr( set_getstr( &ic->acc->set, "proxy" ), "<auto>" ) != NULL ) ) {
[b5cfc2b]	184	jd->have_streamhosts = 0;
	185	jabber_iq_query_server( ic, server, XMLNS_DISCO_ITEMS );
[8a90001]	186	} else if ( jd->streamhosts!=NULL )
	187	jd->have_streamhosts = 1;
[2ff2076]	188
[b5cfc2b]	189	/* if we had to do a query, wait for the result.
	190	* Otherwise fire away. */
	191	if( !tf->bud->features \|\| jd->have_streamhosts!=1 )
	192	tf->disco_timeout = b_timeout_add( 500, jabber_si_waitfor_disco, tf );
	193	else
	194	jabber_si_transfer_start( tf );
[2ff2076]	195	}
	196
[2c2df7d]	197	/*
	198	* First function that gets called when a file transfer request comes in.
	199	* A lot to parse.
	200	*
	201	* We choose a stream type from the options given by the initiator.
	202	* Then we wait for imcb to call the accept or cancel callbacks.
	203	*/
	204	int jabber_si_handle_request( struct im_connection ic, struct xt_node node, struct xt_node *sinode)
	205	{
	206	struct xt_node c, d, *reply;
[78d254f1]	207	char sid, ini_jid, tgt_jid, iq_id, s, ext_jid, *size_s;
[2c2df7d]	208	struct jabber_buddy *bud;
	209	int requestok = FALSE;
[aed152f]	210	char name, cmp;
[2c2df7d]	211	size_t size;
	212	struct jabber_transfer *tf;
	213	struct jabber_data *jd = ic->proto_data;
	214	file_transfer_t *ft;
	215
	216	/* All this means we expect something like this: ( I think )
	217	* <iq from=... to=... id=...>
	218	* <si id=id xmlns=si profile=ft>
	219	* <file xmlns=ft/>
	220	* <feature xmlns=feature>
	221	* <x xmlns=xdata type=submit>
	222	* <field var=stream-method>
	223	*
	224	*/
	225	if( !( ini_jid = xt_find_attr( node, "from" ) ) \|\|
	226	!( tgt_jid = xt_find_attr( node, "to" ) ) \|\|
	227	!( iq_id = xt_find_attr( node, "id" ) ) \|\|
	228	!( sid = xt_find_attr( sinode, "id" ) ) \|\|
[aed152f]	229	!( cmp = xt_find_attr( sinode, "profile" ) ) \|\|
	230	!( 0 == strcmp( cmp, XMLNS_FILETRANSFER ) ) \|\|
[2c2df7d]	231	!( d = xt_find_node( sinode->children, "file" ) ) \|\|
[aed152f]	232	!( cmp = xt_find_attr( d, "xmlns" ) ) \|\|
	233	!( 0 == strcmp( cmp, XMLNS_FILETRANSFER ) ) \|\|
[2c2df7d]	234	!( name = xt_find_attr( d, "name" ) ) \|\|
[78d254f1]	235	!( size_s = xt_find_attr( d, "size" ) ) \|\|
[b8a491d]	236	!( 1 == sscanf( size_s, "%zd", &size ) ) \|\|
[2c2df7d]	237	!( d = xt_find_node( sinode->children, "feature" ) ) \|\|
[aed152f]	238	!( cmp = xt_find_attr( d, "xmlns" ) ) \|\|
	239	!( 0 == strcmp( cmp, XMLNS_FEATURE ) ) \|\|
[2c2df7d]	240	!( d = xt_find_node( d->children, "x" ) ) \|\|
[aed152f]	241	!( cmp = xt_find_attr( d, "xmlns" ) ) \|\|
	242	!( 0 == strcmp( cmp, XMLNS_XDATA ) ) \|\|
	243	!( cmp = xt_find_attr( d, "type" ) ) \|\|
	244	!( 0 == strcmp( cmp, "form" ) ) \|\|
[2c2df7d]	245	!( d = xt_find_node( d->children, "field" ) ) \|\|
[aed152f]	246	!( cmp = xt_find_attr( d, "var" ) ) \|\|
	247	!( 0 == strcmp( cmp, "stream-method" ) ) )
[2c2df7d]	248	{
	249	imcb_log( ic, "WARNING: Received incomplete Stream Initiation request" );
[b8a491d]	250	}
	251	else
[2c2df7d]	252	{
	253	/* Check if we support one of the options */
	254
	255	c = d->children;
	256	while( ( c = xt_find_node( c, "option" ) ) )
[b8a491d]	257	if( ( d = xt_find_node( c->children, "value" ) ) &&
[699376f7]	258	( d->text != NULL ) &&
[b8a491d]	259	( strcmp( d->text, XMLNS_BYTESTREAMS ) == 0 ) )
[2c2df7d]	260	{
	261	requestok = TRUE;
	262	break;
	263	}
[2ff2076]	264
	265	if ( !requestok )
	266	imcb_log( ic, "WARNING: Unsupported file transfer request from %s", ini_jid);
[2c2df7d]	267	}
	268
[b8a491d]	269	if( requestok )
[2c2df7d]	270	{
	271	/* Figure out who the transfer should come frome... */
	272
[b8a491d]	273	ext_jid = ini_jid;
[2c2df7d]	274	if( ( s = strchr( ini_jid, '/' ) ) )
	275	{
	276	if( ( bud = jabber_buddy_by_jid( ic, ini_jid, GET_BUDDY_EXACT ) ) )
	277	{
[1cc0df3]	278	bud->last_msg = time( NULL );
[2c2df7d]	279	ext_jid = bud->ext_jid ? : bud->bare_jid;
	280	}
	281	else
	282	s = 0; / We need to generate a bare JID now. */
	283	}
	284
	285	if( !( ft = imcb_file_send_start( ic, ext_jid, name, size ) ) )
	286	{
	287	imcb_log( ic, "WARNING: Error handling transfer request from %s", ini_jid);
	288	requestok = FALSE;
	289	}
	290
	291	*s = '/';
[2ff2076]	292	}
[b8a491d]	293	else
[2c2df7d]	294	{
	295	reply = jabber_make_error_packet( node, "item-not-found", "cancel", NULL );
	296	if (!jabber_write_packet( ic, reply ))
	297	imcb_log( ic, "WARNING: Error generating reply to file transfer request" );
	298	xt_free_node( reply );
	299	return XT_HANDLED;
	300	}
	301
	302	/* Request is fine. */
	303
	304	tf = g_new0( struct jabber_transfer, 1 );
	305
	306	tf->ini_jid = g_strdup( ini_jid );
	307	tf->tgt_jid = g_strdup( tgt_jid );
	308	tf->iq_id = g_strdup( iq_id );
	309	tf->sid = g_strdup( sid );
	310	tf->ic = ic;
	311	tf->ft = ft;
[8a90001]	312	tf->fd = -1;
[2c2df7d]	313	tf->ft->data = tf;
	314	tf->ft->accept = jabber_si_answer_request;
	315	tf->ft->free = jabber_si_free_transfer;
	316	tf->ft->canceled = jabber_si_canceled;
	317
	318	jd->filetransfers = g_slist_prepend( jd->filetransfers, tf );
	319
	320	return XT_HANDLED;
	321	}
	322
	323	/*
[dce3903]	324	* imc called the accept callback which probably means that the user accepted this file transfer.
[2c2df7d]	325	* We send our response to the initiator.
	326	* In the next step, the initiator will send us a request for the given stream type.
	327	* (currently that can only be a SOCKS5 bytestream)
	328	*/
	329	void jabber_si_answer_request( file_transfer_t *ft ) {
	330	struct jabber_transfer *tf = ft->data;
	331	struct xt_node node, sinode, *reply;
	332
	333	/* generate response, start with the SI tag */
	334	sinode = xt_new_node( "si", NULL, NULL );
	335	xt_add_attr( sinode, "xmlns", XMLNS_SI );
	336	xt_add_attr( sinode, "profile", XMLNS_FILETRANSFER );
	337	xt_add_attr( sinode, "id", tf->sid );
	338
	339	/* now the file tag */
	340	node = xt_new_node( "file", NULL, NULL );
	341	xt_add_attr( node, "xmlns", XMLNS_FILETRANSFER );
	342
	343	xt_add_child( sinode, node );
	344
	345	/* and finally the feature tag */
	346	node = xt_new_node( "field", NULL, NULL );
	347	xt_add_attr( node, "var", "stream-method" );
	348	xt_add_attr( node, "type", "list-single" );
	349
	350	/* Currently all we can do. One could also implement in-band (IBB) */
	351	xt_add_child( node, xt_new_node( "value", XMLNS_BYTESTREAMS, NULL ) );
	352
	353	node = xt_new_node( "x", NULL, node );
	354	xt_add_attr( node, "xmlns", XMLNS_XDATA );
	355	xt_add_attr( node, "type", "submit" );
	356
	357	node = xt_new_node( "feature", NULL, node );
	358	xt_add_attr( node, "xmlns", XMLNS_FEATURE );
	359
	360	xt_add_child( sinode, node );
	361
	362	reply = jabber_make_packet( "iq", "result", tf->ini_jid, sinode );
	363	xt_add_attr( reply, "id", tf->iq_id );
	364
	365	if( !jabber_write_packet( tf->ic, reply ) )
	366	imcb_log( tf->ic, "WARNING: Error generating reply to file transfer request" );
	367	else
	368	tf->accepted = TRUE;
	369	xt_free_node( reply );
	370	}
[2ff2076]	371
	372	static xt_status jabber_si_handle_response(struct im_connection ic, struct xt_node node, struct xt_node *orig )
	373	{
	374	struct xt_node c, d;
[aed152f]	375	char ini_jid, tgt_jid, iq_id, cmp;
[2ff2076]	376	GSList *tflist;
	377	struct jabber_transfer *tf=NULL;
	378	struct jabber_data *jd = ic->proto_data;
	379
	380	if( !( tgt_jid = xt_find_attr( node, "from" ) ) \|\|
	381	!( ini_jid = xt_find_attr( node, "to" ) ) )
	382	{
	383	imcb_log( ic, "Invalid SI response from=%s to=%s", tgt_jid, ini_jid );
	384	return XT_HANDLED;
	385	}
	386
	387	/* All this means we expect something like this: ( I think )
[dce3903]	388	* <iq from=... to=... id=...>
[2ff2076]	389	* <si xmlns=si>
[dce3903]	390	* [ <file xmlns=ft/> ] <-- not neccessary
[2ff2076]	391	* <feature xmlns=feature>
	392	* <x xmlns=xdata type=submit>
	393	* <field var=stream-method>
	394	* <value>
	395	*/
	396	if( !( tgt_jid = xt_find_attr( node, "from" ) ) \|\|
	397	!( ini_jid = xt_find_attr( node, "to" ) ) \|\|
[dce3903]	398	!( iq_id = xt_find_attr( node, "id" ) ) \|\|
[2ff2076]	399	!( c = xt_find_node( node->children, "si" ) ) \|\|
[aed152f]	400	!( cmp = xt_find_attr( c, "xmlns" ) ) \|\|
	401	!( strcmp( cmp, XMLNS_SI ) == 0 ) \|\|
[2ff2076]	402	!( d = xt_find_node( c->children, "feature" ) ) \|\|
[aed152f]	403	!( cmp = xt_find_attr( d, "xmlns" ) ) \|\|
	404	!( strcmp( cmp, XMLNS_FEATURE ) == 0 ) \|\|
[2ff2076]	405	!( d = xt_find_node( d->children, "x" ) ) \|\|
[aed152f]	406	!( cmp = xt_find_attr( d, "xmlns" ) ) \|\|
	407	!( strcmp( cmp, XMLNS_XDATA ) == 0 ) \|\|
	408	!( cmp = xt_find_attr( d, "type" ) ) \|\|
	409	!( strcmp( cmp, "submit" ) == 0 ) \|\|
[2ff2076]	410	!( d = xt_find_node( d->children, "field" ) ) \|\|
[aed152f]	411	!( cmp = xt_find_attr( d, "var" ) ) \|\|
	412	!( strcmp( cmp, "stream-method" ) == 0 ) \|\|
[2ff2076]	413	!( d = xt_find_node( d->children, "value" ) ) )
	414	{
	415	imcb_log( ic, "WARNING: Received incomplete Stream Initiation response" );
	416	return XT_HANDLED;
	417	}
	418
	419	if( !( strcmp( d->text, XMLNS_BYTESTREAMS ) == 0 ) ) {
	420	/* since we should only have advertised what we can do and the peer should
	421	* only have chosen what we offered, this should never happen */
	422	imcb_log( ic, "WARNING: Received invalid Stream Initiation response, method %s", d->text );
	423
	424	return XT_HANDLED;
	425	}
	426
	427	/* Let's see if we can find out what this bytestream should be for... */
	428
	429	for( tflist = jd->filetransfers ; tflist; tflist = g_slist_next(tflist) )
	430	{
	431	struct jabber_transfer *tft = tflist->data;
[dce3903]	432	if( ( strcmp( tft->iq_id, iq_id ) == 0 ) )
[2ff2076]	433	{
	434	tf = tft;
	435	break;
	436	}
	437	}
	438
	439	if (!tf)
	440	{
	441	imcb_log( ic, "WARNING: Received bytestream request from %s that doesn't match an SI request", ini_jid );
	442	return XT_HANDLED;
	443	}
	444
	445	tf->ini_jid = g_strdup( ini_jid );
	446	tf->tgt_jid = g_strdup( tgt_jid );
	447
[dce3903]	448	imcb_log( ic, "File %s: %s accepted the transfer!", tf->ft->file_name, tgt_jid );
	449
[2ff2076]	450	jabber_bs_send_start( tf );
	451
	452	return XT_HANDLED;
	453	}
	454
	455	int jabber_si_send_request(struct im_connection ic, char who, struct jabber_transfer *tf )
	456	{
	457	struct xt_node node, sinode;
	458	struct jabber_buddy *bud;
	459
	460	/* who knows how many bits the future holds :) */
	461	char filesizestr[ 1 + ( int ) ( 0.301029995663981198f * sizeof( size_t ) * 8 ) ];
	462
	463	const char *methods[] =
	464	{
	465	XMLNS_BYTESTREAMS,
	466	//XMLNS_IBB,
	467	NULL
	468	};
	469	const char **m;
	470	char *s;
	471
	472	/* Maybe we should hash this? */
	473	tf->sid = g_strdup_printf( "BitlBeeJabberSID%d", tf->ft->local_id );
	474
[793cc25]	475	if( ( s = strchr( who, '=' ) ) && jabber_chat_by_jid( ic, s + 1 ) )
[2ff2076]	476	bud = jabber_buddy_by_ext_jid( ic, who, 0 );
	477	else
	478	bud = jabber_buddy_by_jid( ic, who, 0 );
	479
	480	/* start with the SI tag */
	481	sinode = xt_new_node( "si", NULL, NULL );
	482	xt_add_attr( sinode, "xmlns", XMLNS_SI );
	483	xt_add_attr( sinode, "profile", XMLNS_FILETRANSFER );
	484	xt_add_attr( sinode, "id", tf->sid );
	485
	486	/* if( mimetype )
	487	xt_add_attr( node, "mime-type", mimetype ); */
	488
	489	/* now the file tag */
	490	/* if( desc )
	491	node = xt_new_node( "desc", descr, NULL ); */
	492	node = xt_new_node( "range", NULL, NULL );
	493
	494	sprintf( filesizestr, "%zd", tf->ft->file_size );
	495	node = xt_new_node( "file", NULL, node );
	496	xt_add_attr( node, "xmlns", XMLNS_FILETRANSFER );
	497	xt_add_attr( node, "name", tf->ft->file_name );
	498	xt_add_attr( node, "size", filesizestr );
	499	/* if (hash)
	500	xt_add_attr( node, "hash", hash );
	501	if (date)
	502	xt_add_attr( node, "date", date ); */
	503
	504	xt_add_child( sinode, node );
	505
	506	/* and finally the feature tag */
	507	node = xt_new_node( "field", NULL, NULL );
	508	xt_add_attr( node, "var", "stream-method" );
	509	xt_add_attr( node, "type", "list-single" );
	510
	511	for ( m = methods ; *m ; m ++ )
	512	xt_add_child( node, xt_new_node( "option", NULL, xt_new_node( "value", (char )m, NULL ) ) );
	513
	514	node = xt_new_node( "x", NULL, node );
	515	xt_add_attr( node, "xmlns", XMLNS_XDATA );
	516	xt_add_attr( node, "type", "form" );
	517
	518	node = xt_new_node( "feature", NULL, node );
	519	xt_add_attr( node, "xmlns", XMLNS_FEATURE );
	520
	521	xt_add_child( sinode, node );
	522
	523	/* and we are there... */
	524	node = jabber_make_packet( "iq", "set", bud ? bud->full_jid : who, sinode );
	525	jabber_cache_add( ic, node, jabber_si_handle_response );
[dce3903]	526	tf->iq_id = g_strdup( xt_find_attr( node, "id" ) );
[2ff2076]	527
	528	return jabber_write_packet( ic, node );
	529	}

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