Line data Source code
1 : /*
2 : This file is part of TALER
3 : Copyright (C) 2024 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 :
18 : #include "taler/platform.h"
19 : #include "taler/taler_error_codes.h"
20 : #include "taler/taler_dbevents.h"
21 : #include "taler/taler_pq_lib.h"
22 : #include "pg_helper.h"
23 : #include "pg_get_coin_inconsistency.h"
24 :
25 : /**
26 : * Closure for #deposit_confirmation_cb().
27 : */
28 : struct CoinInconsistencyContext
29 : {
30 :
31 : /**
32 : * Function to call for each deposit confirmation.
33 : */
34 : TALER_AUDITORDB_CoinInconsistencyCallback cb;
35 :
36 : /**
37 : * Closure for @e cb
38 : */
39 : void *cb_cls;
40 :
41 : /**
42 : * Plugin context.
43 : */
44 : struct PostgresClosure *pg;
45 :
46 : /**
47 : * Query status to return.
48 : */
49 : enum GNUNET_DB_QueryStatus qs;
50 : };
51 :
52 :
53 : /**
54 : * Helper function for #TAH_PG_get_deposit_confirmations().
55 : * To be called with the results of a SELECT statement
56 : * that has returned @a num_results results.
57 : *
58 : * @param cls closure of type `struct DepositConfirmationContext *`
59 : * @param result the postgres result
60 : * @param num_results the number of results in @a result
61 : */
62 : static void
63 1 : coin_inconsistency_cb (void *cls,
64 : PGresult *result,
65 : unsigned int num_results)
66 : {
67 1 : struct CoinInconsistencyContext *dcc = cls;
68 1 : struct PostgresClosure *pg = dcc->pg;
69 :
70 2 : for (unsigned int i = 0; i < num_results; i++)
71 : {
72 : uint64_t serial_id;
73 :
74 : struct TALER_AUDITORDB_CoinInconsistency dc;
75 :
76 1 : struct GNUNET_PQ_ResultSpec rs[] = {
77 1 : GNUNET_PQ_result_spec_uint64 ("row_id",
78 : &serial_id),
79 1 : GNUNET_PQ_result_spec_string ("operation",
80 : &dc.operation),
81 1 : TALER_PQ_RESULT_SPEC_AMOUNT ("exchange_amount",
82 : &dc.exchange_amount),
83 1 : TALER_PQ_RESULT_SPEC_AMOUNT ("auditor_amount",
84 : &dc.auditor_amount),
85 1 : GNUNET_PQ_result_spec_auto_from_type ("coin_pub", &dc.coin_pub),
86 1 : GNUNET_PQ_result_spec_bool ("profitable",
87 : &dc.profitable),
88 :
89 : GNUNET_PQ_result_spec_end
90 : };
91 : enum GNUNET_GenericReturnValue rval;
92 :
93 1 : if (GNUNET_OK !=
94 1 : GNUNET_PQ_extract_result (result,
95 : rs,
96 : i))
97 : {
98 0 : GNUNET_break (0);
99 0 : dcc->qs = GNUNET_DB_STATUS_HARD_ERROR;
100 0 : return;
101 : }
102 :
103 1 : dcc->qs = i + 1;
104 :
105 :
106 1 : rval = dcc->cb (dcc->cb_cls,
107 : serial_id,
108 : &dc);
109 1 : GNUNET_PQ_cleanup_result (rs);
110 1 : if (GNUNET_OK != rval)
111 0 : break;
112 : }
113 : }
114 :
115 :
116 : enum GNUNET_DB_QueryStatus
117 1 : TAH_PG_get_coin_inconsistency (
118 : void *cls,
119 : int64_t limit,
120 : uint64_t offset,
121 : bool return_suppressed, // maybe not needed
122 : TALER_AUDITORDB_CoinInconsistencyCallback cb,
123 : void *cb_cls)
124 : {
125 :
126 1 : uint64_t plimit = (uint64_t) ((limit < 0) ? -limit : limit);
127 :
128 1 : struct PostgresClosure *pg = cls;
129 1 : struct GNUNET_PQ_QueryParam params[] = {
130 1 : GNUNET_PQ_query_param_uint64 (&offset),
131 1 : GNUNET_PQ_query_param_bool (return_suppressed),
132 1 : GNUNET_PQ_query_param_uint64 (&plimit),
133 : GNUNET_PQ_query_param_end
134 : };
135 1 : struct CoinInconsistencyContext dcc = {
136 : .cb = cb,
137 : .cb_cls = cb_cls,
138 : .pg = pg
139 : };
140 : enum GNUNET_DB_QueryStatus qs;
141 :
142 :
143 1 : PREPARE (pg,
144 : "auditor_coin_inconsistency_select_desc",
145 : "SELECT"
146 : " row_id"
147 : ",operation"
148 : ",exchange_amount"
149 : ",auditor_amount"
150 : ",coin_pub"
151 : ",profitable"
152 : " FROM auditor_coin_inconsistency"
153 : " WHERE (row_id < $1)"
154 : " AND ($2 OR suppressed is false)"
155 : " ORDER BY row_id DESC"
156 : " LIMIT $3"
157 : );
158 1 : PREPARE (pg,
159 : "auditor_coin_inconsistency_select_asc",
160 : "SELECT"
161 : " row_id"
162 : ",operation"
163 : ",exchange_amount"
164 : ",auditor_amount"
165 : ",coin_pub"
166 : ",profitable"
167 : " FROM auditor_coin_inconsistency"
168 : " WHERE (row_id > $1)"
169 : " AND ($2 OR suppressed is false)"
170 : " ORDER BY row_id ASC"
171 : " LIMIT $3"
172 : );
173 1 : qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
174 : (limit > 0) ?
175 : "auditor_coin_inconsistency_select_asc"
176 : :
177 : "auditor_coin_inconsistency_select_desc",
178 : params,
179 : &coin_inconsistency_cb,
180 : &dcc);
181 :
182 :
183 1 : if (qs > 0)
184 1 : return dcc.qs;
185 0 : GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs);
186 0 : return qs;
187 : }
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