[f06894d] | 1 | /***************************************************************************\ |
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| 2 | * * |
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| 3 | * BitlBee - An IRC to IM gateway * |
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| 4 | * Jabber module - IQ packets * |
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| 5 | * * |
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| 6 | * Copyright 2006 Wilmer van der Gaast <wilmer@gaast.net> * |
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| 7 | * * |
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| 8 | * This program is free software; you can redistribute it and/or modify * |
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| 9 | * it under the terms of the GNU General Public License as published by * |
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| 10 | * the Free Software Foundation; either version 2 of the License, or * |
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| 11 | * (at your option) any later version. * |
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| 12 | * * |
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| 13 | * This program is distributed in the hope that it will be useful, * |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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| 16 | * GNU General Public License for more details. * |
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| 17 | * * |
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| 18 | * You should have received a copy of the GNU General Public License along * |
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| 19 | * with this program; if not, write to the Free Software Foundation, Inc., * |
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| 20 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * |
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| 21 | * * |
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| 22 | \***************************************************************************/ |
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| 23 | |
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| 24 | #include "jabber.h" |
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| 25 | |
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| 26 | xt_status jabber_pkt_iq( struct xt_node *node, gpointer data ) |
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| 27 | { |
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[21167d2] | 28 | struct gaim_connection *gc = data; |
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| 29 | struct jabber_data *jd = gc->proto_data; |
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[58b5f62] | 30 | struct xt_node *c, *reply = NULL; |
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[861c199] | 31 | char *type, *s; |
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[259edd4] | 32 | int st, pack = 1; |
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[21167d2] | 33 | |
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[70f6aab8] | 34 | type = xt_find_attr( node, "type" ); |
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[f06894d] | 35 | |
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[70f6aab8] | 36 | if( !type ) |
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[861c199] | 37 | { |
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[58b5f62] | 38 | hide_login_progress_error( gc, "Received IQ packet without type." ); |
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[861c199] | 39 | signoff( gc ); |
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| 40 | return XT_ABORT; |
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| 41 | } |
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[21167d2] | 42 | |
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[58b5f62] | 43 | if( strcmp( type, "result" ) == 0 || strcmp( type, "error" ) == 0 ) |
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[861c199] | 44 | { |
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| 45 | struct jabber_cache_entry *entry; |
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| 46 | |
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[58b5f62] | 47 | if( ( s = xt_find_attr( node, "id" ) ) == NULL ) |
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| 48 | { |
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| 49 | /* Silently ignore it, without an ID we don't know |
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| 50 | how to handle the packet, but it doesn't have |
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| 51 | to be a serious problem. */ |
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| 52 | return XT_HANDLED; |
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| 53 | } |
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| 54 | |
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[861c199] | 55 | entry = g_hash_table_lookup( jd->node_cache, s ); |
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| 56 | |
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| 57 | if( entry == NULL ) |
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| 58 | serv_got_crap( gc, "WARNING: Received IQ %s packet with unknown/expired ID %s!", type, s ); |
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| 59 | else if( entry->func ) |
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| 60 | return entry->func( gc, node, entry->node ); |
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| 61 | } |
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[58b5f62] | 62 | else if( strcmp( type, "get" ) == 0 ) |
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| 63 | { |
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| 64 | if( !( c = xt_find_node( node->children, "query" ) ) || |
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| 65 | !( s = xt_find_attr( c, "xmlns" ) ) ) |
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| 66 | { |
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| 67 | serv_got_crap( gc, "WARNING: Received incomplete IQ-get packet" ); |
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| 68 | return XT_HANDLED; |
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| 69 | } |
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| 70 | |
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| 71 | reply = xt_new_node( "query", NULL, NULL ); |
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| 72 | xt_add_attr( reply, "xmlns", s ); |
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| 73 | |
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| 74 | /* Of course this is a very essential query to support. ;-) */ |
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| 75 | if( strcmp( s, "jabber:iq:version" ) == 0 ) |
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| 76 | { |
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| 77 | xt_add_child( reply, xt_new_node( "name", "BitlBee", NULL ) ); |
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| 78 | xt_add_child( reply, xt_new_node( "version", BITLBEE_VERSION, NULL ) ); |
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| 79 | xt_add_child( reply, xt_new_node( "os", ARCH, NULL ) ); |
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| 80 | } |
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| 81 | else if( strcmp( s, "http://jabber.org/protocol/disco#info" ) == 0 ) |
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| 82 | { |
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| 83 | c = xt_new_node( "identity", NULL, NULL ); |
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| 84 | xt_add_attr( c, "category", "client" ); |
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| 85 | xt_add_attr( c, "type", "pc" ); |
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| 86 | xt_add_attr( c, "name", "BitlBee" ); |
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| 87 | xt_add_child( reply, c ); |
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| 88 | |
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| 89 | c = xt_new_node( "feature", NULL, NULL ); |
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| 90 | xt_add_attr( c, "var", "jabber:iq:version" ); |
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| 91 | xt_add_child( reply, c ); |
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| 92 | |
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| 93 | c = xt_new_node( "feature", NULL, NULL ); |
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| 94 | xt_add_attr( c, "var", "http://jabber.org/protocol/chatstates" ); |
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| 95 | xt_add_child( reply, c ); |
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| 96 | |
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| 97 | /* Later this can be useful to announce things like |
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| 98 | MUC support. */ |
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| 99 | } |
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| 100 | else |
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| 101 | { |
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| 102 | xt_free_node( reply ); |
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[259edd4] | 103 | reply = jabber_make_error_packet( node, "feature-not-implemented", "cancel" ); |
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| 104 | pack = 0; |
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[58b5f62] | 105 | } |
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[259edd4] | 106 | } |
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| 107 | else if( strcmp( type, "set" ) == 0 ) |
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| 108 | { |
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| 109 | xt_free_node( reply ); |
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| 110 | reply = jabber_make_error_packet( node, "feature-not-implemented", "cancel" ); |
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| 111 | pack = 0; |
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| 112 | } |
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| 113 | |
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| 114 | /* If we recognized the xmlns and managed to generate a reply, |
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| 115 | finish and send it. */ |
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| 116 | if( reply ) |
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| 117 | { |
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| 118 | /* Normally we still have to pack it into an iq-result |
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| 119 | packet, but for errors, for example, we don't. */ |
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| 120 | if( pack ) |
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[58b5f62] | 121 | { |
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| 122 | reply = jabber_make_packet( "iq", "result", xt_find_attr( node, "from" ), reply ); |
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| 123 | if( ( s = xt_find_attr( node, "id" ) ) ) |
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| 124 | xt_add_attr( reply, "id", s ); |
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| 125 | } |
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[259edd4] | 126 | |
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| 127 | st = jabber_write_packet( gc, reply ); |
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| 128 | xt_free_node( reply ); |
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| 129 | if( !st ) |
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| 130 | return XT_ABORT; |
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[58b5f62] | 131 | } |
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[70f6aab8] | 132 | |
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[861c199] | 133 | return XT_HANDLED; |
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| 134 | } |
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| 135 | |
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| 136 | static xt_status jabber_do_iq_auth( struct gaim_connection *gc, struct xt_node *node, struct xt_node *orig ); |
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| 137 | static xt_status jabber_finish_iq_auth( struct gaim_connection *gc, struct xt_node *node, struct xt_node *orig ); |
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| 138 | |
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| 139 | int jabber_init_iq_auth( struct gaim_connection *gc ) |
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| 140 | { |
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| 141 | struct jabber_data *jd = gc->proto_data; |
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| 142 | struct xt_node *node; |
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| 143 | int st; |
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[fe7a554] | 144 | |
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[861c199] | 145 | node = xt_new_node( "query", NULL, xt_new_node( "username", jd->username, NULL ) ); |
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| 146 | xt_add_attr( node, "xmlns", "jabber:iq:auth" ); |
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| 147 | node = jabber_make_packet( "iq", "get", NULL, node ); |
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| 148 | |
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| 149 | jabber_cache_add( gc, node, jabber_do_iq_auth ); |
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| 150 | st = jabber_write_packet( gc, node ); |
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| 151 | |
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| 152 | return st; |
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| 153 | } |
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| 154 | |
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| 155 | static xt_status jabber_do_iq_auth( struct gaim_connection *gc, struct xt_node *node, struct xt_node *orig ) |
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| 156 | { |
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| 157 | struct jabber_data *jd = gc->proto_data; |
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| 158 | struct xt_node *reply, *query; |
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| 159 | xt_status st; |
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| 160 | char *s; |
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| 161 | |
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| 162 | query = xt_find_node( node->children, "query" ); |
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| 163 | |
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| 164 | /* Time to authenticate ourselves! */ |
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| 165 | reply = xt_new_node( "query", NULL, NULL ); |
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| 166 | xt_add_attr( reply, "xmlns", "jabber:iq:auth" ); |
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| 167 | xt_add_child( reply, xt_new_node( "username", jd->username, NULL ) ); |
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| 168 | xt_add_child( reply, xt_new_node( "resource", set_getstr( &gc->acc->set, "resource" ), NULL ) ); |
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| 169 | |
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| 170 | if( xt_find_node( query->children, "digest" ) && ( s = xt_find_attr( jd->xt->root, "id" ) ) ) |
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[21167d2] | 171 | { |
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[861c199] | 172 | /* We can do digest authentication, it seems, and of |
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| 173 | course we prefer that. */ |
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| 174 | SHA_CTX sha; |
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| 175 | char hash_hex[40]; |
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| 176 | unsigned char hash[20]; |
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| 177 | int i; |
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[21167d2] | 178 | |
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[861c199] | 179 | shaInit( &sha ); |
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| 180 | shaUpdate( &sha, (unsigned char*) s, strlen( s ) ); |
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| 181 | shaUpdate( &sha, (unsigned char*) gc->acc->pass, strlen( gc->acc->pass ) ); |
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| 182 | shaFinal( &sha, hash ); |
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[21167d2] | 183 | |
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[861c199] | 184 | for( i = 0; i < 20; i ++ ) |
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| 185 | sprintf( hash_hex + i * 2, "%02x", hash[i] ); |
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[21167d2] | 186 | |
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[861c199] | 187 | xt_add_child( reply, xt_new_node( "digest", hash_hex, NULL ) ); |
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[21167d2] | 188 | } |
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[861c199] | 189 | else if( xt_find_node( query->children, "password" ) ) |
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[0b4a0db] | 190 | { |
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[861c199] | 191 | /* We'll have to stick with plaintext. Let's hope we're using SSL/TLS... */ |
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| 192 | xt_add_child( reply, xt_new_node( "password", gc->acc->pass, NULL ) ); |
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[0b4a0db] | 193 | } |
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[861c199] | 194 | else |
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[70f6aab8] | 195 | { |
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[861c199] | 196 | xt_free_node( reply ); |
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[995913b] | 197 | |
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[861c199] | 198 | hide_login_progress( gc, "Can't find suitable authentication method" ); |
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| 199 | signoff( gc ); |
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| 200 | return XT_ABORT; |
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[70f6aab8] | 201 | } |
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[861c199] | 202 | |
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| 203 | reply = jabber_make_packet( "iq", "set", NULL, reply ); |
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| 204 | jabber_cache_add( gc, reply, jabber_finish_iq_auth ); |
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| 205 | st = jabber_write_packet( gc, reply ); |
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| 206 | |
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| 207 | return st ? XT_HANDLED : XT_ABORT; |
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| 208 | } |
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| 209 | |
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| 210 | static xt_status jabber_finish_iq_auth( struct gaim_connection *gc, struct xt_node *node, struct xt_node *orig ) |
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| 211 | { |
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| 212 | char *type = xt_find_attr( node, "type" ); |
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| 213 | struct jabber_data *jd = gc->proto_data; |
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| 214 | |
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| 215 | if( strcmp( type, "error" ) == 0 ) |
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[70f6aab8] | 216 | { |
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[861c199] | 217 | hide_login_progress( gc, "Authentication failure" ); |
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| 218 | signoff( gc ); |
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| 219 | return XT_ABORT; |
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| 220 | } |
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| 221 | else if( strcmp( type, "result" ) == 0 ) |
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| 222 | { |
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| 223 | /* This happens when we just successfully authenticated the |
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| 224 | old (non-SASL) way. */ |
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| 225 | jd->flags |= JFLAG_AUTHENTICATED; |
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| 226 | if( !jabber_get_roster( gc ) ) |
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[70f6aab8] | 227 | return XT_ABORT; |
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| 228 | } |
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[f06894d] | 229 | |
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| 230 | return XT_HANDLED; |
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| 231 | } |
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| 232 | |
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[861c199] | 233 | xt_status jabber_pkt_bind_sess( struct gaim_connection *gc, struct xt_node *node, struct xt_node *orig ) |
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[21167d2] | 234 | { |
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| 235 | struct jabber_data *jd = gc->proto_data; |
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[861c199] | 236 | struct xt_node *c; |
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| 237 | char *s; |
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[21167d2] | 238 | |
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[861c199] | 239 | if( ( c = xt_find_node( node->children, "bind" ) ) ) |
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| 240 | { |
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| 241 | c = xt_find_node( c->children, "jid" ); |
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| 242 | if( c && c->text_len && ( s = strchr( c->text, '/' ) ) && |
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| 243 | strcmp( s + 1, set_getstr( &gc->acc->set, "resource" ) ) != 0 ) |
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| 244 | serv_got_crap( gc, "Server changed session resource string to `%s'", s + 1 ); |
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| 245 | |
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| 246 | jd->flags &= ~JFLAG_WAIT_BIND; |
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| 247 | } |
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| 248 | else |
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| 249 | { |
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| 250 | jd->flags &= ~JFLAG_WAIT_SESSION; |
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| 251 | } |
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[21167d2] | 252 | |
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[861c199] | 253 | if( ( jd->flags & ( JFLAG_WAIT_BIND | JFLAG_WAIT_SESSION ) ) == 0 ) |
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| 254 | { |
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| 255 | if( !jabber_get_roster( gc ) ) |
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| 256 | return XT_ABORT; |
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| 257 | } |
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[21167d2] | 258 | |
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[861c199] | 259 | return XT_HANDLED; |
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[21167d2] | 260 | } |
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[70f6aab8] | 261 | |
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[861c199] | 262 | static xt_status jabber_parse_roster( struct gaim_connection *gc, struct xt_node *node, struct xt_node *orig ); |
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| 263 | |
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[70f6aab8] | 264 | int jabber_get_roster( struct gaim_connection *gc ) |
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| 265 | { |
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| 266 | struct xt_node *node; |
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| 267 | int st; |
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| 268 | |
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| 269 | set_login_progress( gc, 1, "Authenticated, requesting buddy list" ); |
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| 270 | |
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| 271 | node = xt_new_node( "query", NULL, NULL ); |
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| 272 | xt_add_attr( node, "xmlns", "jabber:iq:roster" ); |
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| 273 | node = jabber_make_packet( "iq", "get", NULL, node ); |
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| 274 | |
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[861c199] | 275 | jabber_cache_add( gc, node, jabber_parse_roster ); |
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[70f6aab8] | 276 | st = jabber_write_packet( gc, node ); |
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| 277 | |
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| 278 | return st; |
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| 279 | } |
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[cfbb3a6] | 280 | |
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[861c199] | 281 | static xt_status jabber_parse_roster( struct gaim_connection *gc, struct xt_node *node, struct xt_node *orig ) |
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| 282 | { |
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| 283 | struct xt_node *query, *c; |
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| 284 | |
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| 285 | query = xt_find_node( node->children, "query" ); |
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| 286 | |
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| 287 | c = query->children; |
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| 288 | while( ( c = xt_find_node( c, "item" ) ) ) |
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| 289 | { |
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| 290 | char *jid = xt_find_attr( c, "jid" ); |
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| 291 | char *name = xt_find_attr( c, "name" ); |
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| 292 | char *sub = xt_find_attr( c, "subscription" ); |
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| 293 | |
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| 294 | if( jid && sub && ( strcmp( sub, "both" ) == 0 || strcmp( sub, "to" ) == 0 ) ) |
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| 295 | add_buddy( gc, NULL, jid, name ); |
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| 296 | |
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| 297 | c = c->next; |
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| 298 | } |
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| 299 | |
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| 300 | account_online( gc ); |
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| 301 | |
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| 302 | return XT_HANDLED; |
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| 303 | } |
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| 304 | |
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[cfbb3a6] | 305 | int jabber_add_to_roster( struct gaim_connection *gc, char *handle, char *name ) |
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| 306 | { |
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| 307 | struct xt_node *node; |
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| 308 | int st; |
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| 309 | |
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| 310 | /* Build the item entry */ |
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| 311 | node = xt_new_node( "item", NULL, NULL ); |
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| 312 | xt_add_attr( node, "jid", handle ); |
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| 313 | if( name ) |
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| 314 | xt_add_attr( node, "name", name ); |
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| 315 | |
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| 316 | /* And pack it into a roster-add packet */ |
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| 317 | node = xt_new_node( "query", NULL, node ); |
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| 318 | xt_add_attr( node, "xmlns", "jabber:iq:roster" ); |
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| 319 | node = jabber_make_packet( "iq", "set", NULL, node ); |
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| 320 | |
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| 321 | st = jabber_write_packet( gc, node ); |
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| 322 | |
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| 323 | xt_free_node( node ); |
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| 324 | return st; |
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| 325 | } |
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| 326 | |
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| 327 | int jabber_remove_from_roster( struct gaim_connection *gc, char *handle ) |
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| 328 | { |
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| 329 | struct xt_node *node; |
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| 330 | int st; |
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| 331 | |
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| 332 | /* Build the item entry */ |
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| 333 | node = xt_new_node( "item", NULL, NULL ); |
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| 334 | xt_add_attr( node, "jid", handle ); |
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| 335 | xt_add_attr( node, "subscription", "remove" ); |
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| 336 | |
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| 337 | /* And pack it into a roster-add packet */ |
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| 338 | node = xt_new_node( "query", NULL, node ); |
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| 339 | xt_add_attr( node, "xmlns", "jabber:iq:roster" ); |
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| 340 | node = jabber_make_packet( "iq", "set", NULL, node ); |
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| 341 | |
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| 342 | st = jabber_write_packet( gc, node ); |
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| 343 | |
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| 344 | xt_free_node( node ); |
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| 345 | return st; |
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| 346 | } |
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