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/***************************************************************************\
* *
* BitlBee - An IRC to IM gateway *
* Jabber module - IQ packets *
* *
* Copyright 2006 Wilmer van der Gaast <wilmer@gaast.net> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License along *
* with this program; if not, write to the Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
* *
\***************************************************************************/
#include "jabber.h"
xt_status jabber_pkt_iq( struct xt_node *node, gpointer data )
{
struct gaim_connection *gc = data;
struct jabber_data *jd = gc->proto_data;
struct xt_node *query, *reply = NULL, *orig = NULL;
char *s, *type, *xmlns;
int st;
query = xt_find_node( node->children, "query" );
type = xt_find_attr( node, "type" );
if( !type )
return XT_HANDLED; /* Ignore it for now, don't know what's best... */
xmlns = xt_find_attr( query, "xmlns" );
if( ( s = xt_find_attr( node, "id" ) ) )
orig = jabber_packet_from_cache( gc, s );
if( strcmp( type, "result" ) == 0 && xmlns && strcmp( xmlns, "jabber:iq:auth" ) == 0 )
{
/* Time to authenticate ourselves! */
reply = xt_new_node( "query", NULL, NULL );
xt_add_attr( reply, "xmlns", "jabber:iq:auth" );
xt_add_child( reply, xt_new_node( "username", jd->username, NULL ) );
xt_add_child( reply, xt_new_node( "resource", set_getstr( &gc->acc->set, "resource" ), NULL ) );
if( xt_find_node( query->children, "digest" ) && ( s = xt_find_attr( jd->xt->root, "id" ) ) )
{
/* We can do digest authentication, it seems, and of
course we prefer that. */
SHA_CTX sha;
char hash_hex[40];
unsigned char hash[20];
int i;
shaInit( &sha );
shaUpdate( &sha, (unsigned char*) s, strlen( s ) );
shaUpdate( &sha, (unsigned char*) gc->acc->pass, strlen( gc->acc->pass ) );
shaFinal( &sha, hash );
for( i = 0; i < 20; i ++ )
sprintf( hash_hex + i * 2, "%02x", hash[i] );
xt_add_child( reply, xt_new_node( "digest", hash_hex, NULL ) );
}
else if( xt_find_node( query->children, "password" ) )
{
/* We'll have to stick with plaintext. Let's hope we're using SSL/TLS... */
xt_add_child( reply, xt_new_node( "password", gc->acc->pass, NULL ) );
}
else
{
xt_free_node( reply );
hide_login_progress( gc, "Can't find suitable authentication method" );
signoff( gc );
return XT_ABORT;
}
reply = jabber_make_packet( "iq", "set", NULL, reply );
jabber_cache_packet( gc, reply );
st = jabber_write_packet( gc, reply );
return st ? XT_HANDLED : XT_ABORT;
}
if( strcmp( type, "result" ) == 0 && xmlns && strcmp( xmlns, "jabber:iq:roster" ) == 0 )
{
struct xt_node *node;
node = query->children;
while( ( node = xt_find_node( node, "item" ) ) )
{
char *jid = xt_find_attr( node, "jid" );
char *name = xt_find_attr( node, "name" );
char *sub = xt_find_attr( node, "subscription" );
if( jid && sub && ( strcmp( sub, "both" ) == 0 || strcmp( sub, "to" ) == 0 ) )
add_buddy( gc, NULL, jid, name );
node = node->next;
}
account_online( gc );
}
else if( strcmp( type, "result" ) == 0 && orig )
{
struct xt_node *node;
if( !( jd->flags & JFLAG_AUTHENTICATED ) &&
( node = xt_find_node( orig->children, "query" ) ) &&
( node = xt_find_node( node->children, "username" ) ) &&
node->text_len )
{
/* This happens when we just successfully authenticated
the old (non-SASL) way. */
jd->flags |= JFLAG_AUTHENTICATED;
if( !jabber_get_roster( gc ) )
return XT_ABORT;
}
else if( ( node = xt_find_node( orig->children, "bind" ) ) ||
( node = xt_find_node( orig->children, "session" ) ) )
{
if( strcmp( node->name, "bind" ) == 0 )
jd->flags &= ~JFLAG_WAIT_BIND;
else if( strcmp( node->name, "session" ) == 0 )
jd->flags &= ~JFLAG_WAIT_SESSION;
if( ( jd->flags & ( JFLAG_WAIT_BIND | JFLAG_WAIT_SESSION ) ) == 0 )
{
if( !jabber_get_roster( gc ) )
return XT_ABORT;
}
}
}
else if( strcmp( type, "error" ) == 0 )
{
if( !( jd->flags & JFLAG_AUTHENTICATED ) )
{
hide_login_progress( gc, "Authentication failure" );
signoff( gc );
return XT_ABORT;
}
}
return XT_HANDLED;
}
int jabber_start_iq_auth( struct gaim_connection *gc )
{
struct jabber_data *jd = gc->proto_data;
struct xt_node *node;
int st;
node = xt_new_node( "query", NULL, xt_new_node( "username", jd->username, NULL ) );
xt_add_attr( node, "xmlns", "jabber:iq:auth" );
node = jabber_make_packet( "iq", "get", NULL, node );
st = jabber_write_packet( gc, node );
xt_free_node( node );
return st;
}
int jabber_get_roster( struct gaim_connection *gc )
{
struct xt_node *node;
int st;
set_login_progress( gc, 1, "Authenticated, requesting buddy list" );
node = xt_new_node( "query", NULL, NULL );
xt_add_attr( node, "xmlns", "jabber:iq:roster" );
node = jabber_make_packet( "iq", "get", NULL, node );
st = jabber_write_packet( gc, node );
xt_free_node( node );
return st;
}
int jabber_add_to_roster( struct gaim_connection *gc, char *handle, char *name )
{
struct xt_node *node;
int st;
/* Build the item entry */
node = xt_new_node( "item", NULL, NULL );
xt_add_attr( node, "jid", handle );
if( name )
xt_add_attr( node, "name", name );
/* And pack it into a roster-add packet */
node = xt_new_node( "query", NULL, node );
xt_add_attr( node, "xmlns", "jabber:iq:roster" );
node = jabber_make_packet( "iq", "set", NULL, node );
st = jabber_write_packet( gc, node );
xt_free_node( node );
return st;
}
int jabber_remove_from_roster( struct gaim_connection *gc, char *handle )
{
struct xt_node *node;
int st;
/* Build the item entry */
node = xt_new_node( "item", NULL, NULL );
xt_add_attr( node, "jid", handle );
xt_add_attr( node, "subscription", "remove" );
/* And pack it into a roster-add packet */
node = xt_new_node( "query", NULL, node );
xt_add_attr( node, "xmlns", "jabber:iq:roster" );
node = jabber_make_packet( "iq", "set", NULL, node );
st = jabber_write_packet( gc, node );
xt_free_node( node );
return st;
}
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