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
|
/*
This file is part of TALER
Copyright (C) 2022 Taler Systems SA
TALER is free software; you can redistribute it and/or modify it under the
terms of the GNU Affero 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License along with
TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
/**
* @file taler-exchange-httpd_purses_delete.c
* @brief Handle DELETE /purses/$PID requests; parses the request and
* verifies the signature before handing deletion to the database.
* @author Christian Grothoff
*/
#include "platform.h"
#include <gnunet/gnunet_util_lib.h>
#include <gnunet/gnunet_json_lib.h>
#include <jansson.h>
#include <microhttpd.h>
#include "taler_json_lib.h"
#include "taler_mhd_lib.h"
#include "taler-exchange-httpd_common_deposit.h"
#include "taler-exchange-httpd_purses_delete.h"
#include "taler-exchange-httpd_responses.h"
#include "taler_exchangedb_lib.h"
#include "taler-exchange-httpd_keys.h"
MHD_RESULT
TEH_handler_purses_delete (
struct MHD_Connection *connection,
const struct TALER_PurseContractPublicKeyP *purse_pub)
{
struct TALER_PurseContractSignatureP purse_sig;
bool found;
bool decided;
{
const char *sig;
sig = MHD_lookup_connection_value (connection,
MHD_HEADER_KIND,
"Taler-Purse-Signature");
if ( (NULL == sig) ||
(GNUNET_OK !=
GNUNET_STRINGS_string_to_data (sig,
strlen (sig),
&purse_sig,
sizeof (purse_sig))) )
{
GNUNET_break_op (0);
return TALER_MHD_reply_with_error (connection,
MHD_HTTP_BAD_REQUEST,
(NULL == sig)
? TALER_EC_GENERIC_PARAMETER_MISSING
: TALER_EC_GENERIC_PARAMETER_MALFORMED,
"Taler-Purse-Signature");
}
}
if (GNUNET_OK !=
TALER_wallet_purse_delete_verify (purse_pub,
&purse_sig))
{
TALER_LOG_WARNING ("Invalid signature on /purses/$PID/delete request\n");
return TALER_MHD_reply_with_error (connection,
MHD_HTTP_FORBIDDEN,
TALER_EC_EXCHANGE_PURSE_DELETE_SIGNATURE_INVALID,
NULL);
}
if (GNUNET_SYSERR ==
TEH_plugin->preflight (TEH_plugin->cls))
{
GNUNET_break (0);
return TALER_MHD_reply_with_error (connection,
MHD_HTTP_INTERNAL_SERVER_ERROR,
TALER_EC_GENERIC_DB_START_FAILED,
"preflight failure");
}
{
enum GNUNET_DB_QueryStatus qs;
qs = TEH_plugin->do_purse_delete (TEH_plugin->cls,
purse_pub,
&purse_sig,
&decided,
&found);
if (qs <= 0)
{
TALER_LOG_WARNING (
"Failed to store delete purse information in database\n");
return TALER_MHD_reply_with_error (connection,
MHD_HTTP_INTERNAL_SERVER_ERROR,
TALER_EC_GENERIC_DB_STORE_FAILED,
"purse delete");
}
}
if (! found)
{
return TALER_MHD_reply_with_ec (
connection,
TALER_EC_EXCHANGE_GENERIC_PURSE_UNKNOWN,
NULL);
}
if (decided)
{
return TALER_MHD_reply_with_ec (
connection,
TALER_EC_EXCHANGE_PURSE_DELETE_ALREADY_DECIDED,
NULL);
}
/* success */
return TALER_MHD_reply_static (connection,
MHD_HTTP_NO_CONTENT,
NULL,
NULL,
0);
}
/* end of taler-exchange-httpd_purses_delete.c */
|
