[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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[6baca2a] | 30 | struct xt_node *query, *reply = NULL, *orig = NULL, *c; |
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[70f6aab8] | 31 | char *s, *type, *xmlns; |
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[21167d2] | 32 | int st; |
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| 33 | |
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| 34 | query = xt_find_node( node->children, "query" ); |
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[70f6aab8] | 35 | type = xt_find_attr( node, "type" ); |
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[f06894d] | 36 | |
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[70f6aab8] | 37 | if( !type ) |
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[21167d2] | 38 | return XT_HANDLED; /* Ignore it for now, don't know what's best... */ |
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| 39 | |
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[70f6aab8] | 40 | xmlns = xt_find_attr( query, "xmlns" ); |
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| 41 | |
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[fe7a554] | 42 | if( ( s = xt_find_attr( node, "id" ) ) ) |
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| 43 | orig = jabber_packet_from_cache( gc, s ); |
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| 44 | |
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[70f6aab8] | 45 | if( strcmp( type, "result" ) == 0 && xmlns && strcmp( xmlns, "jabber:iq:auth" ) == 0 ) |
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[21167d2] | 46 | { |
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| 47 | /* Time to authenticate ourselves! */ |
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| 48 | reply = xt_new_node( "query", NULL, NULL ); |
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| 49 | xt_add_attr( reply, "xmlns", "jabber:iq:auth" ); |
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| 50 | xt_add_child( reply, xt_new_node( "username", jd->username, NULL ) ); |
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| 51 | xt_add_child( reply, xt_new_node( "resource", set_getstr( &gc->acc->set, "resource" ), NULL ) ); |
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| 52 | |
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| 53 | if( xt_find_node( query->children, "digest" ) && ( s = xt_find_attr( jd->xt->root, "id" ) ) ) |
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| 54 | { |
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| 55 | /* We can do digest authentication, it seems, and of |
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| 56 | course we prefer that. */ |
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| 57 | SHA_CTX sha; |
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| 58 | char hash_hex[40]; |
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| 59 | unsigned char hash[20]; |
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| 60 | int i; |
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| 61 | |
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| 62 | shaInit( &sha ); |
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| 63 | shaUpdate( &sha, (unsigned char*) s, strlen( s ) ); |
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| 64 | shaUpdate( &sha, (unsigned char*) gc->acc->pass, strlen( gc->acc->pass ) ); |
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| 65 | shaFinal( &sha, hash ); |
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| 66 | |
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| 67 | for( i = 0; i < 20; i ++ ) |
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| 68 | sprintf( hash_hex + i * 2, "%02x", hash[i] ); |
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| 69 | |
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| 70 | xt_add_child( reply, xt_new_node( "digest", hash_hex, NULL ) ); |
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| 71 | } |
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| 72 | else if( xt_find_node( query->children, "password" ) ) |
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| 73 | { |
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| 74 | /* We'll have to stick with plaintext. Let's hope we're using SSL/TLS... */ |
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| 75 | xt_add_child( reply, xt_new_node( "password", gc->acc->pass, NULL ) ); |
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| 76 | } |
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| 77 | else |
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| 78 | { |
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| 79 | xt_free_node( reply ); |
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| 80 | |
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[70f6aab8] | 81 | hide_login_progress( gc, "Can't find suitable authentication method" ); |
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[21167d2] | 82 | signoff( gc ); |
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| 83 | return XT_ABORT; |
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| 84 | } |
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| 85 | |
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| 86 | reply = jabber_make_packet( "iq", "set", NULL, reply ); |
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[fe7a554] | 87 | jabber_cache_packet( gc, reply ); |
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[21167d2] | 88 | st = jabber_write_packet( gc, reply ); |
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| 89 | |
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| 90 | return st ? XT_HANDLED : XT_ABORT; |
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| 91 | } |
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[0b4a0db] | 92 | if( strcmp( type, "result" ) == 0 && xmlns && strcmp( xmlns, "jabber:iq:roster" ) == 0 ) |
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| 93 | { |
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| 94 | struct xt_node *node; |
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| 95 | |
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| 96 | node = query->children; |
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| 97 | while( ( node = xt_find_node( node, "item" ) ) ) |
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| 98 | { |
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| 99 | char *jid = xt_find_attr( node, "jid" ); |
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| 100 | char *name = xt_find_attr( node, "name" ); |
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| 101 | char *sub = xt_find_attr( node, "subscription" ); |
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| 102 | |
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| 103 | if( jid && sub && ( strcmp( sub, "both" ) == 0 || strcmp( sub, "to" ) == 0 ) ) |
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| 104 | add_buddy( gc, NULL, jid, name ); |
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| 105 | |
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| 106 | node = node->next; |
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| 107 | } |
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| 108 | |
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[5e202b0] | 109 | account_online( gc ); |
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[0b4a0db] | 110 | } |
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[6baca2a] | 111 | if( strcmp( type, "result" ) == 0 && xmlns && strcmp( xmlns, "jabber:iq:privacy" ) == 0 ) |
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| 112 | { |
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| 113 | struct xt_node *node; |
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| 114 | |
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| 115 | /* When receiving a list of lists: */ |
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| 116 | if( ( node = xt_find_node( query->children, "active" ) ) ) |
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| 117 | { |
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| 118 | if( ( s = xt_find_attr( node, "name" ) ) ) |
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| 119 | { |
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| 120 | set_t *set; |
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| 121 | |
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| 122 | g_free( jd->privacy_active ); |
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| 123 | jd->privacy_active = g_strdup( s ); |
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| 124 | |
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| 125 | /* Save it so the user can see it. */ |
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| 126 | if( ( set = set_find( &gc->acc->set, "privacy_list" ) ) ) |
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| 127 | { |
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| 128 | g_free( set->value ); |
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| 129 | set->value = g_strdup( s ); |
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| 130 | } |
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| 131 | |
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| 132 | if( !jabber_get_privacy( gc ) ) |
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| 133 | return XT_ABORT; |
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| 134 | } |
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| 135 | } |
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| 136 | /* When receiving an actual list: */ |
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| 137 | else if( ( node = xt_find_node( query->children, "list" ) ) ) |
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| 138 | { |
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| 139 | xt_free_node( jd->privacy_list ); |
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| 140 | jd->privacy_list = xt_dup( node ); |
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| 141 | } |
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| 142 | else if( query->children == NULL ) |
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| 143 | { |
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| 144 | /* What to do here if there is no privacy list defined yet... */ |
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| 145 | } |
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| 146 | } |
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[fe7a554] | 147 | else if( strcmp( type, "result" ) == 0 && orig ) |
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[70f6aab8] | 148 | { |
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[8e6c732] | 149 | struct xt_node *c; |
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[995913b] | 150 | |
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[fe7a554] | 151 | if( !( jd->flags & JFLAG_AUTHENTICATED ) && |
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[8e6c732] | 152 | ( c = xt_find_node( orig->children, "query" ) ) && |
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| 153 | ( c = xt_find_node( c->children, "username" ) ) && |
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| 154 | c->text_len ) |
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[70f6aab8] | 155 | { |
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[fe7a554] | 156 | /* This happens when we just successfully authenticated |
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| 157 | the old (non-SASL) way. */ |
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[70f6aab8] | 158 | jd->flags |= JFLAG_AUTHENTICATED; |
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[6baca2a] | 159 | if( !jabber_get_roster( gc ) || !jabber_get_privacy( gc ) ) |
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[70f6aab8] | 160 | return XT_ABORT; |
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| 161 | } |
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[8e6c732] | 162 | /* Tricky: Look for <bind> in the reply, because the server |
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| 163 | should confirm the chosen resource string there. For |
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| 164 | <session>, however, look in the cache, because the server |
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| 165 | will probably not include it in its reply. */ |
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| 166 | else if( ( c = xt_find_node( node->children, "bind" ) ) || |
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| 167 | ( c = xt_find_node( orig->children, "session" ) ) ) |
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[fe7a554] | 168 | { |
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[8e6c732] | 169 | if( strcmp( c->name, "bind" ) == 0 ) |
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| 170 | { |
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| 171 | c = xt_find_node( c->children, "jid" ); |
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| 172 | if( c && c->text_len && ( s = strchr( c->text, '/' ) ) && |
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| 173 | strcmp( s + 1, set_getstr( &gc->acc->set, "resource" ) ) != 0 ) |
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| 174 | serv_got_crap( gc, "Server changed session resource string to `%s'", s + 1 ); |
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| 175 | |
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[fe7a554] | 176 | jd->flags &= ~JFLAG_WAIT_BIND; |
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[8e6c732] | 177 | } |
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| 178 | else if( strcmp( c->name, "session" ) == 0 ) |
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[fe7a554] | 179 | jd->flags &= ~JFLAG_WAIT_SESSION; |
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| 180 | |
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| 181 | if( ( jd->flags & ( JFLAG_WAIT_BIND | JFLAG_WAIT_SESSION ) ) == 0 ) |
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| 182 | { |
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[6baca2a] | 183 | if( !jabber_get_roster( gc ) || !jabber_get_privacy( gc ) ) |
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[fe7a554] | 184 | return XT_ABORT; |
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| 185 | } |
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| 186 | } |
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[6baca2a] | 187 | else if( ( c = xt_find_node( orig->children, "query" ) ) && |
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| 188 | ( c = xt_find_node( c->children, "active" ) ) ) |
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| 189 | { |
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| 190 | /* We just successfully activated a (different) |
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| 191 | privacy list. Fetch it now. */ |
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| 192 | g_free( jd->privacy_active ); |
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| 193 | jd->privacy_active = g_strdup( xt_find_attr( c, "name" ) ); |
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| 194 | |
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| 195 | if( !jabber_get_privacy( gc ) ) |
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| 196 | return XT_ABORT; |
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| 197 | } |
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[70f6aab8] | 198 | } |
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| 199 | else if( strcmp( type, "error" ) == 0 ) |
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| 200 | { |
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[6baca2a] | 201 | if( !( jd->flags & JFLAG_AUTHENTICATED ) && |
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[995913b] | 202 | orig && |
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[6baca2a] | 203 | ( c = xt_find_node( orig->children, "query" ) ) && |
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| 204 | ( c = xt_find_node( c->children, "username" ) ) && |
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| 205 | c->text_len ) |
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[70f6aab8] | 206 | { |
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| 207 | hide_login_progress( gc, "Authentication failure" ); |
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| 208 | signoff( gc ); |
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| 209 | return XT_ABORT; |
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| 210 | } |
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[995913b] | 211 | else if( ( xmlns && strcmp( xmlns, "jabber:iq:privacy" ) == 0 ) || |
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| 212 | ( orig && |
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| 213 | ( c = xt_find_node( orig->children, "query" ) ) && |
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| 214 | ( s = xt_find_attr( c, "xmlns" ) ) && |
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| 215 | strcmp( s, "jabber:iq:privacy" ) == 0 ) ) |
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[6baca2a] | 216 | { |
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[995913b] | 217 | /* All errors related to privacy lists. */ |
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| 218 | if( ( c = xt_find_node( node->children, "error" ) ) == NULL ) |
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| 219 | { |
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| 220 | hide_login_progress_error( gc, "Received malformed error packet" ); |
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| 221 | signoff( gc ); |
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| 222 | return XT_ABORT; |
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| 223 | } |
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| 224 | |
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| 225 | if( xt_find_node( c->children, "item-not-found" ) ) |
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| 226 | { |
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| 227 | serv_got_crap( gc, "Error while activating privacy list, maybe it doesn't exist" ); |
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| 228 | /* Should I do anything else here? */ |
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| 229 | } |
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| 230 | else if( xt_find_node( c->children, "feature-not-implemented" ) ) |
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| 231 | { |
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| 232 | jd->flags |= JFLAG_PRIVACY_BROKEN; |
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| 233 | /* Probably there's no need to inform the user. |
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| 234 | We can do that if the user ever tries to use |
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| 235 | the block/allow commands. */ |
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| 236 | } |
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[6baca2a] | 237 | } |
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[70f6aab8] | 238 | } |
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[f06894d] | 239 | |
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| 240 | return XT_HANDLED; |
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| 241 | } |
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| 242 | |
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[8d74291] | 243 | int jabber_start_iq_auth( struct gaim_connection *gc ) |
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[21167d2] | 244 | { |
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| 245 | struct jabber_data *jd = gc->proto_data; |
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| 246 | struct xt_node *node; |
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| 247 | int st; |
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| 248 | |
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| 249 | node = xt_new_node( "query", NULL, xt_new_node( "username", jd->username, NULL ) ); |
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| 250 | xt_add_attr( node, "xmlns", "jabber:iq:auth" ); |
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| 251 | node = jabber_make_packet( "iq", "get", NULL, node ); |
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| 252 | |
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| 253 | st = jabber_write_packet( gc, node ); |
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| 254 | |
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| 255 | xt_free_node( node ); |
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| 256 | return st; |
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| 257 | } |
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[70f6aab8] | 258 | |
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| 259 | int jabber_get_roster( struct gaim_connection *gc ) |
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| 260 | { |
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| 261 | struct xt_node *node; |
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| 262 | int st; |
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| 263 | |
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| 264 | set_login_progress( gc, 1, "Authenticated, requesting buddy list" ); |
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| 265 | |
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| 266 | node = xt_new_node( "query", NULL, NULL ); |
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| 267 | xt_add_attr( node, "xmlns", "jabber:iq:roster" ); |
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| 268 | node = jabber_make_packet( "iq", "get", NULL, node ); |
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| 269 | |
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| 270 | st = jabber_write_packet( gc, node ); |
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| 271 | |
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| 272 | xt_free_node( node ); |
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| 273 | return st; |
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| 274 | } |
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[cfbb3a6] | 275 | |
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| 276 | int jabber_add_to_roster( struct gaim_connection *gc, char *handle, char *name ) |
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| 277 | { |
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| 278 | struct xt_node *node; |
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| 279 | int st; |
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| 280 | |
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| 281 | /* Build the item entry */ |
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| 282 | node = xt_new_node( "item", NULL, NULL ); |
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| 283 | xt_add_attr( node, "jid", handle ); |
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| 284 | if( name ) |
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| 285 | xt_add_attr( node, "name", name ); |
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| 286 | |
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| 287 | /* And pack it into a roster-add packet */ |
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| 288 | node = xt_new_node( "query", NULL, node ); |
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| 289 | xt_add_attr( node, "xmlns", "jabber:iq:roster" ); |
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| 290 | node = jabber_make_packet( "iq", "set", NULL, node ); |
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| 291 | |
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| 292 | st = jabber_write_packet( gc, node ); |
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| 293 | |
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| 294 | xt_free_node( node ); |
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| 295 | return st; |
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| 296 | } |
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| 297 | |
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| 298 | int jabber_remove_from_roster( struct gaim_connection *gc, char *handle ) |
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| 299 | { |
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| 300 | struct xt_node *node; |
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| 301 | int st; |
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| 302 | |
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| 303 | /* Build the item entry */ |
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| 304 | node = xt_new_node( "item", NULL, NULL ); |
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| 305 | xt_add_attr( node, "jid", handle ); |
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| 306 | xt_add_attr( node, "subscription", "remove" ); |
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| 307 | |
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| 308 | /* And pack it into a roster-add packet */ |
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| 309 | node = xt_new_node( "query", NULL, node ); |
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| 310 | xt_add_attr( node, "xmlns", "jabber:iq:roster" ); |
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| 311 | node = jabber_make_packet( "iq", "set", NULL, node ); |
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| 312 | |
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| 313 | st = jabber_write_packet( gc, node ); |
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| 314 | |
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| 315 | xt_free_node( node ); |
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| 316 | return st; |
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| 317 | } |
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[6baca2a] | 318 | |
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| 319 | /* Request the privacy list from the server. We need this, because every |
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| 320 | time we remove/add something we have to send the whole new list to the |
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| 321 | server again... If no privacy list is specified yet, this function will |
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| 322 | first ask for the list of lists (XMPP supports multiple "privacy lists", |
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| 323 | don't ask me why), later we can then fetch the list we want to use. */ |
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| 324 | int jabber_get_privacy( struct gaim_connection *gc ) |
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| 325 | { |
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| 326 | struct jabber_data *jd = gc->proto_data; |
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| 327 | struct xt_node *node = NULL; |
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| 328 | char *name; |
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| 329 | int st; |
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| 330 | |
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| 331 | if( jd->privacy_active ) |
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| 332 | { |
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| 333 | /* If we know what is the active list right now, fetch it. */ |
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| 334 | node = xt_new_node( "list", NULL, NULL ); |
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| 335 | xt_add_attr( node, "name", jd->privacy_active ); |
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| 336 | } |
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| 337 | /* Okay, we don't know yet. If the user set a specific list, we'll |
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| 338 | activate that one. Otherwise, we should figure out which list is |
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| 339 | currently active. */ |
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| 340 | else if( ( name = set_getstr( &gc->acc->set, "privacy_list" ) ) ) |
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| 341 | { |
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| 342 | return jabber_set_privacy( gc, name ); |
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| 343 | } |
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| 344 | /* else: sending this packet without a <list/> element will give |
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| 345 | a list of available lists and information about the currently |
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| 346 | active list. */ |
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| 347 | |
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| 348 | node = xt_new_node( "query", NULL, node ); |
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| 349 | xt_add_attr( node, "xmlns", "jabber:iq:privacy" ); |
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| 350 | node = jabber_make_packet( "iq", "get", NULL, node ); |
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| 351 | |
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[995913b] | 352 | jabber_cache_packet( gc, node ); |
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[6baca2a] | 353 | st = jabber_write_packet( gc, node ); |
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| 354 | |
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| 355 | return st; |
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| 356 | } |
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| 357 | |
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| 358 | int jabber_set_privacy( struct gaim_connection *gc, char *name ) |
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| 359 | { |
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| 360 | struct xt_node *node; |
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| 361 | |
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| 362 | node = xt_new_node( "active", NULL, NULL ); |
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| 363 | xt_add_attr( node, "name", name ); |
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| 364 | node = xt_new_node( "query", NULL, node ); |
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| 365 | xt_add_attr( node, "xmlns", "jabber:iq:privacy" ); |
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| 366 | |
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| 367 | node = jabber_make_packet( "iq", "set", NULL, node ); |
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| 368 | jabber_cache_packet( gc, node ); |
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| 369 | |
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| 370 | return jabber_write_packet( gc, node ); |
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| 371 | } |
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[995913b] | 372 | |
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| 373 | char *set_eval_privacy_list( set_t *set, char *value ) |
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| 374 | { |
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| 375 | account_t *acc = set->data; |
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| 376 | struct jabber_data *jd = acc->gc->proto_data; |
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| 377 | |
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| 378 | if( jd->flags & JFLAG_PRIVACY_BROKEN ) |
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| 379 | { |
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| 380 | serv_got_crap( acc->gc, "Privacy lists not supported by this server" ); |
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| 381 | return NULL; |
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| 382 | } |
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| 383 | |
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| 384 | /* If we're on-line, return NULL and let the server decide if the |
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| 385 | chosen list is valid. If we're off-line, just accept it and we'll |
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| 386 | see later (when we connect). */ |
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| 387 | if( acc->gc ) |
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| 388 | jabber_set_privacy( acc->gc, value ); |
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| 389 | |
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| 390 | return acc->gc ? NULL : value; |
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| 391 | } |
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