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
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
|
/*
This file is part of TALER
Copyright (C) 2014-2017 GNUnet e.V.
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 taler-exchange-reservemod.c
* @brief Modify reserves. Allows manipulation of reserve balances.
* @author Florian Dold
* @author Benedikt Mueller
*/
#include "platform.h"
#include <gnunet/gnunet_util_lib.h>
#include <gnunet/gnunet_json_lib.h>
#include <libpq-fe.h>
#include <jansson.h>
#include "taler_exchangedb_plugin.h"
/**
* Director of the exchange, containing the keys.
*/
static char *exchange_directory;
/**
* Our DB plugin.
*/
static struct TALER_EXCHANGEDB_Plugin *plugin;
/**
* Public key of the reserve.
*/
static struct TALER_ReservePublicKeyP reserve_pub;
/**
* Amount to add. Invalid if not initialized.
*/
static struct TALER_Amount add_value;
/**
* Details about the sender account in JSON format.
*/
static json_t *sender_details;
/**
* Details about the wire transfer in JSON format.
*/
static json_t *transfer_details;
/**
* Return value from main().
*/
static int global_ret;
/**
* Run the database transaction.
*
* @param reserve_pub public key of the reserve to use
* @param add_value value to add
* @param jdetails JSON details about sender
* @param tdetails JSON details about transfer
* @return #GNUNET_OK on success, #GNUNET_SYSERR on hard error,
* #GNUNET_NO if record exists
*/
static int
run_transaction (const struct TALER_ReservePublicKeyP *reserve_pub,
const struct TALER_Amount *add_value,
json_t *jdetails,
json_t *tdetails)
{
int ret;
struct TALER_EXCHANGEDB_Session *session;
void *json_str;
struct GNUNET_TIME_Absolute now;
session = plugin->get_session (plugin->cls);
if (NULL == session)
{
fprintf (stderr,
"Failed to initialize DB session\n");
return GNUNET_SYSERR;
}
/* FIXME: maybe allow passing timestamp via command-line? */
json_str = json_dumps (tdetails,
JSON_INDENT(2));
if (NULL == json_str)
{
GNUNET_break (0); /* out of memory? */
return GNUNET_SYSERR;
}
now = GNUNET_TIME_absolute_get ();
(void) GNUNET_TIME_round_abs (&now);
ret = plugin->reserves_in_insert (plugin->cls,
session,
reserve_pub,
add_value,
now,
jdetails,
json_str,
strlen (json_str));
free (json_str);
if (GNUNET_SYSERR == ret)
{
fprintf (stderr,
"Failed to update reserve.\n");
}
if (GNUNET_NO == ret)
{
fprintf (stderr,
"Record exists, reserve not updated.\n");
}
return ret;
}
/**
* Main function that will be run.
*
* @param cls closure
* @param args remaining command-line arguments
* @param cfgfile name of the configuration file used (for saving, can be NULL!)
* @param cfg configuration
*/
static void
run (void *cls,
char *const *args,
const char *cfgfile,
const struct GNUNET_CONFIGURATION_Handle *cfg)
{
if (GNUNET_OK !=
GNUNET_CONFIGURATION_get_value_filename (cfg,
"exchange",
"KEYDIR",
&exchange_directory))
{
GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
"exchange",
"KEYDIR");
global_ret = 1;
return;
}
if (NULL ==
(plugin = TALER_EXCHANGEDB_plugin_load (cfg)))
{
fprintf (stderr,
"Failed to initialize database plugin.\n");
global_ret = 1;
return;
}
if (GNUNET_SYSERR ==
run_transaction (&reserve_pub,
&add_value,
sender_details,
transfer_details))
global_ret = 1;
TALER_EXCHANGEDB_plugin_unload (plugin);
json_decref (transfer_details);
json_decref (sender_details);
}
/**
* The main function of the reservemod tool
*
* @param argc number of arguments from the command line
* @param argv command line arguments
* @return 0 ok, 1 on error
*/
int
main (int argc, char *const *argv)
{
const struct GNUNET_GETOPT_CommandLineOption options[] = {
GNUNET_GETOPT_option_mandatory
(TALER_getopt_get_amount ('a',
"add",
"DENOM",
"value to add",
&add_value)),
GNUNET_GETOPT_option_mandatory
(GNUNET_JSON_getopt ('s',
"sender",
"JSON",
"details about the sender's bank account",
&sender_details)),
GNUNET_GETOPT_option_mandatory
(GNUNET_JSON_getopt ('t',
"transfer",
"JSON",
"details that uniquely identify the bank transfer",
&transfer_details)),
GNUNET_GETOPT_option_help ("Deposit funds into a Taler reserve"),
GNUNET_GETOPT_option_mandatory
(GNUNET_GETOPT_option_base32_auto ('R',
"reserve",
"KEY",
"reserve (public key) to modify",
&reserve_pub)),
GNUNET_GETOPT_OPTION_END
};
GNUNET_assert (GNUNET_OK ==
GNUNET_log_setup ("taler-exchange-reservemod",
"WARNING",
NULL));
if (GNUNET_OK !=
GNUNET_PROGRAM_run (argc, argv,
"taler-exchange-reservemod",
"Deposit funds into a Taler reserve",
options,
&run, NULL))
return 1;
return global_ret;
}
/* end taler-exchange-reservemod.c */
|
