1 | /***************************************************************************\ |
---|
2 | * * |
---|
3 | * BitlBee - An IRC to IM gateway * |
---|
4 | * Jabber module - IQ packets * |
---|
5 | * * |
---|
6 | * Copyright 2006 Wilmer van der Gaast <wilmer@gaast.net> * |
---|
7 | * * |
---|
8 | * This program is free software; you can redistribute it and/or modify * |
---|
9 | * it under the terms of the GNU General Public License as published by * |
---|
10 | * the Free Software Foundation; either version 2 of the License, or * |
---|
11 | * (at your option) any later version. * |
---|
12 | * * |
---|
13 | * This program is distributed in the hope that it will be useful, * |
---|
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
---|
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
---|
16 | * GNU General Public License for more details. * |
---|
17 | * * |
---|
18 | * You should have received a copy of the GNU General Public License along * |
---|
19 | * with this program; if not, write to the Free Software Foundation, Inc., * |
---|
20 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * |
---|
21 | * * |
---|
22 | \***************************************************************************/ |
---|
23 | |
---|
24 | #include "jabber.h" |
---|
25 | |
---|
26 | xt_status jabber_pkt_iq( struct xt_node *node, gpointer data ) |
---|
27 | { |
---|
28 | struct gaim_connection *gc = data; |
---|
29 | struct jabber_data *jd = gc->proto_data; |
---|
30 | char *type, *s; |
---|
31 | |
---|
32 | type = xt_find_attr( node, "type" ); |
---|
33 | |
---|
34 | if( !type ) |
---|
35 | { |
---|
36 | hide_login_progress_error( gc, "Received IQ packet without type!" ); |
---|
37 | signoff( gc ); |
---|
38 | return XT_ABORT; |
---|
39 | } |
---|
40 | |
---|
41 | if( ( s = xt_find_attr( node, "id" ) ) && |
---|
42 | ( strcmp( type, "result" ) == 0 || strcmp( type, "error" ) == 0 ) ) |
---|
43 | { |
---|
44 | struct jabber_cache_entry *entry; |
---|
45 | |
---|
46 | entry = g_hash_table_lookup( jd->node_cache, s ); |
---|
47 | |
---|
48 | if( entry == NULL ) |
---|
49 | serv_got_crap( gc, "WARNING: Received IQ %s packet with unknown/expired ID %s!", type, s ); |
---|
50 | else if( entry->func ) |
---|
51 | return entry->func( gc, node, entry->node ); |
---|
52 | } |
---|
53 | |
---|
54 | return XT_HANDLED; |
---|
55 | } |
---|
56 | |
---|
57 | static xt_status jabber_do_iq_auth( struct gaim_connection *gc, struct xt_node *node, struct xt_node *orig ); |
---|
58 | static xt_status jabber_finish_iq_auth( struct gaim_connection *gc, struct xt_node *node, struct xt_node *orig ); |
---|
59 | |
---|
60 | int jabber_init_iq_auth( struct gaim_connection *gc ) |
---|
61 | { |
---|
62 | struct jabber_data *jd = gc->proto_data; |
---|
63 | struct xt_node *node; |
---|
64 | int st; |
---|
65 | |
---|
66 | node = xt_new_node( "query", NULL, xt_new_node( "username", jd->username, NULL ) ); |
---|
67 | xt_add_attr( node, "xmlns", "jabber:iq:auth" ); |
---|
68 | node = jabber_make_packet( "iq", "get", NULL, node ); |
---|
69 | |
---|
70 | jabber_cache_add( gc, node, jabber_do_iq_auth ); |
---|
71 | st = jabber_write_packet( gc, node ); |
---|
72 | |
---|
73 | return st; |
---|
74 | } |
---|
75 | |
---|
76 | static xt_status jabber_do_iq_auth( struct gaim_connection *gc, struct xt_node *node, struct xt_node *orig ) |
---|
77 | { |
---|
78 | struct jabber_data *jd = gc->proto_data; |
---|
79 | struct xt_node *reply, *query; |
---|
80 | xt_status st; |
---|
81 | char *s; |
---|
82 | |
---|
83 | query = xt_find_node( node->children, "query" ); |
---|
84 | |
---|
85 | /* Time to authenticate ourselves! */ |
---|
86 | reply = xt_new_node( "query", NULL, NULL ); |
---|
87 | xt_add_attr( reply, "xmlns", "jabber:iq:auth" ); |
---|
88 | xt_add_child( reply, xt_new_node( "username", jd->username, NULL ) ); |
---|
89 | xt_add_child( reply, xt_new_node( "resource", set_getstr( &gc->acc->set, "resource" ), NULL ) ); |
---|
90 | |
---|
91 | if( xt_find_node( query->children, "digest" ) && ( s = xt_find_attr( jd->xt->root, "id" ) ) ) |
---|
92 | { |
---|
93 | /* We can do digest authentication, it seems, and of |
---|
94 | course we prefer that. */ |
---|
95 | SHA_CTX sha; |
---|
96 | char hash_hex[40]; |
---|
97 | unsigned char hash[20]; |
---|
98 | int i; |
---|
99 | |
---|
100 | shaInit( &sha ); |
---|
101 | shaUpdate( &sha, (unsigned char*) s, strlen( s ) ); |
---|
102 | shaUpdate( &sha, (unsigned char*) gc->acc->pass, strlen( gc->acc->pass ) ); |
---|
103 | shaFinal( &sha, hash ); |
---|
104 | |
---|
105 | for( i = 0; i < 20; i ++ ) |
---|
106 | sprintf( hash_hex + i * 2, "%02x", hash[i] ); |
---|
107 | |
---|
108 | xt_add_child( reply, xt_new_node( "digest", hash_hex, NULL ) ); |
---|
109 | } |
---|
110 | else if( xt_find_node( query->children, "password" ) ) |
---|
111 | { |
---|
112 | /* We'll have to stick with plaintext. Let's hope we're using SSL/TLS... */ |
---|
113 | xt_add_child( reply, xt_new_node( "password", gc->acc->pass, NULL ) ); |
---|
114 | } |
---|
115 | else |
---|
116 | { |
---|
117 | xt_free_node( reply ); |
---|
118 | |
---|
119 | hide_login_progress( gc, "Can't find suitable authentication method" ); |
---|
120 | signoff( gc ); |
---|
121 | return XT_ABORT; |
---|
122 | } |
---|
123 | |
---|
124 | reply = jabber_make_packet( "iq", "set", NULL, reply ); |
---|
125 | jabber_cache_add( gc, reply, jabber_finish_iq_auth ); |
---|
126 | st = jabber_write_packet( gc, reply ); |
---|
127 | |
---|
128 | return st ? XT_HANDLED : XT_ABORT; |
---|
129 | } |
---|
130 | |
---|
131 | static xt_status jabber_finish_iq_auth( struct gaim_connection *gc, struct xt_node *node, struct xt_node *orig ) |
---|
132 | { |
---|
133 | char *type = xt_find_attr( node, "type" ); |
---|
134 | struct jabber_data *jd = gc->proto_data; |
---|
135 | |
---|
136 | if( strcmp( type, "error" ) == 0 ) |
---|
137 | { |
---|
138 | hide_login_progress( gc, "Authentication failure" ); |
---|
139 | signoff( gc ); |
---|
140 | return XT_ABORT; |
---|
141 | } |
---|
142 | else if( strcmp( type, "result" ) == 0 ) |
---|
143 | { |
---|
144 | /* This happens when we just successfully authenticated the |
---|
145 | old (non-SASL) way. */ |
---|
146 | jd->flags |= JFLAG_AUTHENTICATED; |
---|
147 | if( !jabber_get_roster( gc ) ) |
---|
148 | return XT_ABORT; |
---|
149 | } |
---|
150 | |
---|
151 | return XT_HANDLED; |
---|
152 | } |
---|
153 | |
---|
154 | xt_status jabber_pkt_bind_sess( struct gaim_connection *gc, struct xt_node *node, struct xt_node *orig ) |
---|
155 | { |
---|
156 | struct jabber_data *jd = gc->proto_data; |
---|
157 | struct xt_node *c; |
---|
158 | char *s; |
---|
159 | |
---|
160 | if( ( c = xt_find_node( node->children, "bind" ) ) ) |
---|
161 | { |
---|
162 | c = xt_find_node( c->children, "jid" ); |
---|
163 | if( c && c->text_len && ( s = strchr( c->text, '/' ) ) && |
---|
164 | strcmp( s + 1, set_getstr( &gc->acc->set, "resource" ) ) != 0 ) |
---|
165 | serv_got_crap( gc, "Server changed session resource string to `%s'", s + 1 ); |
---|
166 | |
---|
167 | jd->flags &= ~JFLAG_WAIT_BIND; |
---|
168 | } |
---|
169 | else |
---|
170 | { |
---|
171 | jd->flags &= ~JFLAG_WAIT_SESSION; |
---|
172 | } |
---|
173 | |
---|
174 | if( ( jd->flags & ( JFLAG_WAIT_BIND | JFLAG_WAIT_SESSION ) ) == 0 ) |
---|
175 | { |
---|
176 | if( !jabber_get_roster( gc ) ) |
---|
177 | return XT_ABORT; |
---|
178 | } |
---|
179 | |
---|
180 | return XT_HANDLED; |
---|
181 | } |
---|
182 | |
---|
183 | static xt_status jabber_parse_roster( struct gaim_connection *gc, struct xt_node *node, struct xt_node *orig ); |
---|
184 | |
---|
185 | int jabber_get_roster( struct gaim_connection *gc ) |
---|
186 | { |
---|
187 | struct xt_node *node; |
---|
188 | int st; |
---|
189 | |
---|
190 | set_login_progress( gc, 1, "Authenticated, requesting buddy list" ); |
---|
191 | |
---|
192 | node = xt_new_node( "query", NULL, NULL ); |
---|
193 | xt_add_attr( node, "xmlns", "jabber:iq:roster" ); |
---|
194 | node = jabber_make_packet( "iq", "get", NULL, node ); |
---|
195 | |
---|
196 | jabber_cache_add( gc, node, jabber_parse_roster ); |
---|
197 | st = jabber_write_packet( gc, node ); |
---|
198 | |
---|
199 | return st; |
---|
200 | } |
---|
201 | |
---|
202 | static xt_status jabber_parse_roster( struct gaim_connection *gc, struct xt_node *node, struct xt_node *orig ) |
---|
203 | { |
---|
204 | struct xt_node *query, *c; |
---|
205 | |
---|
206 | query = xt_find_node( node->children, "query" ); |
---|
207 | |
---|
208 | c = query->children; |
---|
209 | while( ( c = xt_find_node( c, "item" ) ) ) |
---|
210 | { |
---|
211 | char *jid = xt_find_attr( c, "jid" ); |
---|
212 | char *name = xt_find_attr( c, "name" ); |
---|
213 | char *sub = xt_find_attr( c, "subscription" ); |
---|
214 | |
---|
215 | if( jid && sub && ( strcmp( sub, "both" ) == 0 || strcmp( sub, "to" ) == 0 ) ) |
---|
216 | add_buddy( gc, NULL, jid, name ); |
---|
217 | |
---|
218 | c = c->next; |
---|
219 | } |
---|
220 | |
---|
221 | account_online( gc ); |
---|
222 | |
---|
223 | return XT_HANDLED; |
---|
224 | } |
---|
225 | |
---|
226 | int jabber_add_to_roster( struct gaim_connection *gc, char *handle, char *name ) |
---|
227 | { |
---|
228 | struct xt_node *node; |
---|
229 | int st; |
---|
230 | |
---|
231 | /* Build the item entry */ |
---|
232 | node = xt_new_node( "item", NULL, NULL ); |
---|
233 | xt_add_attr( node, "jid", handle ); |
---|
234 | if( name ) |
---|
235 | xt_add_attr( node, "name", name ); |
---|
236 | |
---|
237 | /* And pack it into a roster-add packet */ |
---|
238 | node = xt_new_node( "query", NULL, node ); |
---|
239 | xt_add_attr( node, "xmlns", "jabber:iq:roster" ); |
---|
240 | node = jabber_make_packet( "iq", "set", NULL, node ); |
---|
241 | |
---|
242 | st = jabber_write_packet( gc, node ); |
---|
243 | |
---|
244 | xt_free_node( node ); |
---|
245 | return st; |
---|
246 | } |
---|
247 | |
---|
248 | int jabber_remove_from_roster( struct gaim_connection *gc, char *handle ) |
---|
249 | { |
---|
250 | struct xt_node *node; |
---|
251 | int st; |
---|
252 | |
---|
253 | /* Build the item entry */ |
---|
254 | node = xt_new_node( "item", NULL, NULL ); |
---|
255 | xt_add_attr( node, "jid", handle ); |
---|
256 | xt_add_attr( node, "subscription", "remove" ); |
---|
257 | |
---|
258 | /* And pack it into a roster-add packet */ |
---|
259 | node = xt_new_node( "query", NULL, node ); |
---|
260 | xt_add_attr( node, "xmlns", "jabber:iq:roster" ); |
---|
261 | node = jabber_make_packet( "iq", "set", NULL, node ); |
---|
262 | |
---|
263 | st = jabber_write_packet( gc, node ); |
---|
264 | |
---|
265 | xt_free_node( node ); |
---|
266 | return st; |
---|
267 | } |
---|