Line data Source code
1 : /*
2 : This file is part of TALER
3 : (C) 2020-2021 Taler Systems SA
4 :
5 : TALER is free software; you can redistribute it and/or modify it under the
6 : terms of the GNU General Public License as published by the Free Software
7 : Foundation; either version 3, or (at your option) any later version.
8 :
9 : TALER is distributed in the hope that it will be useful, but WITHOUT ANY
10 : WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
11 : A PARTICULAR PURPOSE. See the GNU General Public License for more details.
12 :
13 : You should have received a copy of the GNU General Public License along with
14 : TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
15 : */
16 : /**
17 : * @file taler-merchant-httpd_private-get-tips.c
18 : * @brief implementation of a GET /private/tips handler
19 : * @author Jonathan Buchanan
20 : */
21 : #include "platform.h"
22 : #include "taler-merchant-httpd_private-get-tips.h"
23 : #include <taler/taler_json_lib.h>
24 :
25 : /**
26 : * Add tip details to our JSON array.
27 : *
28 : * @param[in,out] cls a `json_t *` JSON array to build
29 : * @param row_id row number of the tip
30 : * @param tip_id ID of the tip
31 : * @param amount the amount of the tip
32 : */
33 : static void
34 0 : add_tip (void *cls,
35 : uint64_t row_id,
36 : struct TALER_TipIdentifierP tip_id,
37 : struct TALER_Amount amount)
38 : {
39 0 : json_t *pa = cls;
40 :
41 0 : GNUNET_assert (0 ==
42 : json_array_append_new (
43 : pa,
44 : GNUNET_JSON_PACK (
45 : GNUNET_JSON_pack_uint64 ("row_id",
46 : row_id),
47 : GNUNET_JSON_pack_data_auto ("tip_id",
48 : &tip_id),
49 : TALER_JSON_pack_amount ("tip_amount",
50 : &amount))));
51 0 : }
52 :
53 :
54 : MHD_RESULT
55 0 : TMH_private_get_tips (const struct TMH_RequestHandler *rh,
56 : struct MHD_Connection *connection,
57 : struct TMH_HandlerContext *hc)
58 : {
59 : json_t *pa;
60 : enum GNUNET_DB_QueryStatus qs;
61 : enum TALER_EXCHANGE_YesNoAll expired;
62 : uint64_t offset;
63 : int64_t limit;
64 :
65 0 : if (! (TALER_arg_to_yna (connection,
66 : "expired",
67 : TALER_EXCHANGE_YNA_NO,
68 : &expired)) )
69 0 : return TALER_MHD_reply_with_error (connection,
70 : MHD_HTTP_BAD_REQUEST,
71 : TALER_EC_GENERIC_PARAMETER_MALFORMED,
72 : "expired");
73 : {
74 : const char *limit_str;
75 :
76 0 : limit_str = MHD_lookup_connection_value (connection,
77 : MHD_GET_ARGUMENT_KIND,
78 : "limit");
79 0 : if (NULL == limit_str)
80 : {
81 0 : limit = -20;
82 : }
83 : else
84 : {
85 : char dummy[2];
86 : long long ll;
87 :
88 0 : if (1 !=
89 0 : sscanf (limit_str,
90 : "%lld%1s",
91 : &ll,
92 : dummy))
93 0 : return TALER_MHD_reply_with_error (connection,
94 : MHD_HTTP_BAD_REQUEST,
95 : TALER_EC_GENERIC_PARAMETER_MALFORMED,
96 : "limit");
97 0 : limit = (uint64_t) ll;
98 : }
99 : }
100 : {
101 : const char *offset_str;
102 :
103 0 : offset_str = MHD_lookup_connection_value (connection,
104 : MHD_GET_ARGUMENT_KIND,
105 : "offset");
106 0 : if (NULL == offset_str)
107 : {
108 0 : if (limit > 0)
109 0 : offset = 0;
110 : else
111 0 : offset = INT64_MAX;
112 : }
113 : else
114 : {
115 : char dummy[2];
116 : unsigned long long ull;
117 :
118 0 : if (1 !=
119 0 : sscanf (offset_str,
120 : "%llu%1s",
121 : &ull,
122 : dummy))
123 0 : return TALER_MHD_reply_with_error (connection,
124 : MHD_HTTP_BAD_REQUEST,
125 : TALER_EC_GENERIC_PARAMETER_MALFORMED,
126 : "offset");
127 0 : offset = (uint64_t) ull;
128 : }
129 : }
130 :
131 0 : pa = json_array ();
132 0 : GNUNET_assert (NULL != pa);
133 0 : qs = TMH_db->lookup_tips (TMH_db->cls,
134 0 : hc->instance->settings.id,
135 : expired,
136 : limit,
137 : offset,
138 : &add_tip,
139 : pa);
140 :
141 0 : if (0 > qs)
142 : {
143 0 : GNUNET_break (0);
144 0 : json_decref (pa);
145 0 : return TALER_MHD_reply_with_error (connection,
146 : MHD_HTTP_INTERNAL_SERVER_ERROR,
147 : TALER_EC_GENERIC_DB_FETCH_FAILED,
148 : "tips");
149 : }
150 :
151 0 : return TALER_MHD_REPLY_JSON_PACK (
152 : connection,
153 : MHD_HTTP_OK,
154 : GNUNET_JSON_pack_array_steal ("tips",
155 : pa));
156 : }
|