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
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
|
/*
This file is part of TALER
Copyright (C) 2018, 2021 Taler Systems SA
TALER 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 3, or (at your option) any later version.
TALER 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
TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
/**
* @file json/json_wire.c
* @brief helper functions to generate or check /wire replies
* @author Christian Grothoff
*/
#include "platform.h"
#include <gnunet/gnunet_util_lib.h>
#include "taler_util.h"
#include "taler_json_lib.h"
enum GNUNET_GenericReturnValue
TALER_JSON_merchant_wire_signature_hash (const json_t *wire_s,
struct TALER_MerchantWireHash *hc)
{
const char *payto_uri;
struct TALER_WireSaltP salt;
struct GNUNET_JSON_Specification spec[] = {
GNUNET_JSON_spec_string ("payto_uri",
&payto_uri),
GNUNET_JSON_spec_fixed_auto ("salt",
&salt),
GNUNET_JSON_spec_end ()
};
if (GNUNET_OK !=
GNUNET_JSON_parse (wire_s,
spec,
NULL, NULL))
{
GNUNET_break_op (0);
return GNUNET_SYSERR;
}
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Validating `%s'\n",
payto_uri);
{
char *err;
err = TALER_payto_validate (payto_uri);
if (NULL != err)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"URI `%s' ill-formed: %s\n",
payto_uri,
err);
GNUNET_free (err);
return GNUNET_SYSERR;
}
}
TALER_merchant_wire_signature_hash (payto_uri,
&salt,
hc);
return GNUNET_OK;
}
enum GNUNET_GenericReturnValue
TALER_JSON_exchange_wire_signature_check (
const json_t *wire_s,
const struct TALER_MasterPublicKeyP *master_pub)
{
const char *payto_uri;
struct TALER_MasterSignatureP master_sig;
struct GNUNET_JSON_Specification spec[] = {
GNUNET_JSON_spec_string ("payto_uri",
&payto_uri),
GNUNET_JSON_spec_fixed_auto ("master_sig",
&master_sig),
GNUNET_JSON_spec_end ()
};
if (GNUNET_OK !=
GNUNET_JSON_parse (wire_s,
spec,
NULL, NULL))
{
GNUNET_break_op (0);
return GNUNET_SYSERR;
}
{
char *err;
err = TALER_payto_validate (payto_uri);
if (NULL != err)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"URI `%s' ill-formed: %s\n",
payto_uri,
err);
GNUNET_free (err);
return GNUNET_SYSERR;
}
}
return TALER_exchange_wire_signature_check (payto_uri,
master_pub,
&master_sig);
}
json_t *
TALER_JSON_exchange_wire_signature_make (
const char *payto_uri,
const struct TALER_MasterPrivateKeyP *master_priv)
{
struct TALER_MasterSignatureP master_sig;
char *err;
if (NULL !=
(err = TALER_payto_validate (payto_uri)))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Invalid payto URI `%s': %s\n",
payto_uri,
err);
GNUNET_free (err);
return NULL;
}
TALER_exchange_wire_signature_make (payto_uri,
master_priv,
&master_sig);
return GNUNET_JSON_PACK (
GNUNET_JSON_pack_string ("payto_uri",
payto_uri),
GNUNET_JSON_pack_data_auto ("master_sig",
&master_sig));
}
char *
TALER_JSON_wire_to_payto (const json_t *wire_s)
{
json_t *payto_o;
const char *payto_str;
char *err;
payto_o = json_object_get (wire_s,
"payto_uri");
if ( (NULL == payto_o) ||
(NULL == (payto_str = json_string_value (payto_o))) )
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Malformed wire record encountered: lacks payto://-url\n");
return NULL;
}
if (NULL !=
(err = TALER_payto_validate (payto_str)))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Malformed wire record encountered: payto URI `%s' invalid: %s\n",
payto_str,
err);
GNUNET_free (err);
return NULL;
}
return GNUNET_strdup (payto_str);
}
char *
TALER_JSON_wire_to_method (const json_t *wire_s)
{
json_t *payto_o;
const char *payto_str;
payto_o = json_object_get (wire_s,
"payto_uri");
if ( (NULL == payto_o) ||
(NULL == (payto_str = json_string_value (payto_o))) )
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Fatally malformed wire record encountered: lacks payto://-url\n");
return NULL;
}
return TALER_payto_get_method (payto_str);
}
/* end of json_wire.c */
|
