1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
|
/*
* caps-hash.c - Computing verification string hash (XEP-0115 v1.5)
* Copyright (C) 2008 Collabora Ltd.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/* Computing verification string hash (XEP-0115 v1.5)
*
* Gabble does not do anything with dataforms (XEP-0128) included in
* capabilities. However, it needs to parse them in order to compute the hash
* according to XEP-0115.
*/
#include "config.h"
#include "caps-hash.h"
#include <string.h>
#include <wocky/wocky-disco-identity.h>
#include <wocky/wocky-caps-hash.h>
#define DEBUG_FLAG GABBLE_DEBUG_PRESENCE
#include "base64.h"
#include "gabble/capabilities.h"
#include "debug.h"
#include "namespaces.h"
#include "presence-cache.h"
#include "presence.h"
#include "util.h"
static void
ptr_array_add_str (gpointer str,
gpointer array)
{
g_ptr_array_add (array, str);
}
/**
* Compute our hash as defined by the XEP-0115.
*
* Returns: the hash. The called must free the returned hash with g_free().
*/
gchar *
caps_hash_compute_from_self_presence (GabbleConnection *self)
{
GabblePresence *presence = self->self_presence;
const GabbleCapabilitySet *cap_set;
GPtrArray *features = g_ptr_array_new ();
GPtrArray *identities = wocky_disco_identity_array_new ();
GPtrArray *data_forms;
gchar *str;
/* XEP-0030 requires at least 1 identity. We don't need more. */
g_ptr_array_add (identities,
wocky_disco_identity_new ("client", CLIENT_TYPE,
NULL, PACKAGE_STRING));
cap_set = gabble_presence_peek_caps (presence);
gabble_capability_set_foreach (cap_set, ptr_array_add_str, features);
data_forms = gabble_presence_peek_data_forms (presence);
str = wocky_caps_hash_compute_from_lists (features, identities, data_forms);
g_ptr_array_free (features, TRUE);
wocky_disco_identity_array_free (identities);
return str;
}
/**
* Compute the hash as defined by the XEP-0115 from a received GabbleCapabilitySet
*
* Returns: the hash. The called must free the returned hash with g_free().
*/
gchar *
gabble_caps_hash_compute (const GabbleCapabilitySet *cap_set,
const GPtrArray *identities)
{
GPtrArray *features = g_ptr_array_new ();
GPtrArray *identities_copy = ((identities == NULL) ?
wocky_disco_identity_array_new () :
wocky_disco_identity_array_copy (identities));
gchar *str;
gabble_capability_set_foreach (cap_set, ptr_array_add_str, features);
str = wocky_caps_hash_compute_from_lists (features, identities_copy, NULL);
g_ptr_array_free (features, TRUE);
wocky_disco_identity_array_free (identities_copy);
return str;
}
|
