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
|
/*
This file is part of TALER
(C) 2014-2020 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 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 backend/taler-merchant-httpd_get-tips-ID.c
* @brief implementation of GET /tips/$ID
* @author Marcello Stanisci
* @author Christian Grothoff
*/
#include "platform.h"
#include <jansson.h>
#include <taler/taler_signatures.h>
#include <taler/taler_json_lib.h>
#include "taler-merchant-httpd_get-tips-ID.h"
/**
* Handle a GET "/tips/$ID" request.
*
* @param rh context of the handler
* @param connection the MHD connection to handle
* @param[in,out] hc context with further information about the request
* @return MHD result code
*/
MHD_RESULT
TMH_get_tips_ID (const struct TMH_RequestHandler *rh,
struct MHD_Connection *connection,
struct TMH_HandlerContext *hc)
{
struct GNUNET_HashCode tip_id;
enum GNUNET_DB_QueryStatus qs;
struct TALER_Amount total_authorized;
struct TALER_Amount total_picked_up;
struct GNUNET_TIME_Absolute expiration;
char *exchange_url;
struct TALER_ReservePrivateKeyP reserve_priv;
if (GNUNET_OK !=
GNUNET_CRYPTO_hash_from_string (hc->infix,
&tip_id))
{
/* tip_id has wrong encoding */
GNUNET_break_op (0);
return TALER_MHD_reply_with_error (connection,
MHD_HTTP_BAD_REQUEST,
TALER_EC_PARAMETER_MALFORMED,
"tip_id malformed");
}
TMH_db->preflight (TMH_db->cls);
qs = TMH_db->lookup_tip (TMH_db->cls,
hc->instance->settings.id,
&tip_id,
&total_authorized,
&total_picked_up,
&expiration,
&exchange_url,
&reserve_priv);
if (0 > qs)
{
/* single, read-only SQL statements should never cause
serialization problems */
GNUNET_break (GNUNET_DB_STATUS_SOFT_ERROR != qs);
/* Always report on hard error as well to enable diagnostics */
GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR == qs);
return TALER_MHD_reply_with_error (connection,
MHD_HTTP_INTERNAL_SERVER_ERROR,
TALER_EC_GET_TIPS_DB_LOOKUP_ERROR,
"database error looking up contract");
}
if (GNUNET_DB_STATUS_SUCCESS_NO_RESULTS == qs)
{
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
"Unknown tip id given: `%s'\n",
hc->infix);
return TALER_MHD_reply_with_error (connection,
MHD_HTTP_NOT_FOUND,
TALER_EC_GET_TIPS_ID_UNKNOWN,
"tip_id not found in database");
}
/* Build response */
{
MHD_RESULT ret;
struct TALER_Amount remaining;
struct GNUNET_TIME_Absolute expiration_round = expiration;
GNUNET_break (0 <=
TALER_amount_subtract (&remaining,
&total_authorized,
&total_picked_up));
GNUNET_TIME_round_abs (&expiration_round);
ret = TALER_MHD_reply_json_pack (connection,
MHD_HTTP_OK,
"{s:s, s:o, s:o}",
"exchange_url",
exchange_url,
"tip_amount",
TALER_JSON_from_amount (&remaining),
"expiration",
GNUNET_JSON_from_time_abs (
expiration_round));
GNUNET_free (exchange_url);
return ret;
}
}
/* end of taler-merchant-httpd_get-tips-ID.c */
|
