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/taler_error_codes.h"
19 : #include "taler/taler_pq_lib.h"
20 : #include "pg_helper.h"
21 : #include "auditor-database/iterate_coin_inconsistencies.h"
22 :
23 :
24 : /**
25 : * Hard upper bound on the number of records returned by a single
26 : * call, regardless of the limit requested by the client.
27 : */
28 : #define MAX_RECORDS 50000
29 :
30 :
31 : /**
32 : * Closure for #deposit_confirmation_cb().
33 : */
34 : struct CoinInconsistencyContext
35 : {
36 :
37 : /**
38 : * Function to call for each deposit confirmation.
39 : */
40 : TALER_AUDITORDB_CoinInconsistencyCallback cb;
41 :
42 : /**
43 : * Closure for @e cb
44 : */
45 : void *cb_cls;
46 :
47 : /**
48 : * Plugin context.
49 : */
50 : struct TALER_AUDITORDB_PostgresContext *pg;
51 :
52 : /**
53 : * Query status to return.
54 : */
55 : enum GNUNET_DB_QueryStatus qs;
56 : };
57 :
58 :
59 : /**
60 : * Helper function for #TALER_AUDITORDB_iterate_coin_inconsistencies().
61 : * To be called with the results of a SELECT statement
62 : * that has returned @a num_results results.
63 : *
64 : * @param cls closure of type `struct DepositConfirmationContext *`
65 : * @param result the postgres result
66 : * @param num_results the number of results in @a result
67 : */
68 : static void
69 0 : coin_inconsistency_cb (void *cls,
70 : PGresult *result,
71 : unsigned int num_results)
72 : {
73 0 : struct CoinInconsistencyContext *dcc = cls;
74 0 : struct TALER_AUDITORDB_PostgresContext *pg = dcc->pg;
75 :
76 0 : for (unsigned int i = 0; i < num_results; i++)
77 : {
78 : struct TALER_AUDITORDB_CoinInconsistency dc;
79 :
80 0 : struct GNUNET_PQ_ResultSpec rs[] = {
81 0 : GNUNET_PQ_result_spec_uint64 ("row_id",
82 : &dc.row_id),
83 0 : GNUNET_PQ_result_spec_string ("operation",
84 : &dc.operation),
85 0 : TALER_PQ_RESULT_SPEC_AMOUNT ("exchange_amount",
86 : &dc.exchange_amount),
87 0 : TALER_PQ_RESULT_SPEC_AMOUNT ("auditor_amount",
88 : &dc.auditor_amount),
89 0 : GNUNET_PQ_result_spec_auto_from_type ("coin_pub", &dc.coin_pub),
90 0 : GNUNET_PQ_result_spec_bool ("profitable",
91 : &dc.profitable),
92 0 : GNUNET_PQ_result_spec_bool ("suppressed",
93 : &dc.suppressed),
94 :
95 : GNUNET_PQ_result_spec_end
96 : };
97 : enum GNUNET_GenericReturnValue rval;
98 :
99 0 : if (GNUNET_OK !=
100 0 : GNUNET_PQ_extract_result (result,
101 : rs,
102 : i))
103 : {
104 0 : GNUNET_break (0);
105 0 : dcc->qs = GNUNET_DB_STATUS_HARD_ERROR;
106 0 : return;
107 : }
108 :
109 0 : dcc->qs = i + 1;
110 :
111 :
112 0 : rval = dcc->cb (dcc->cb_cls,
113 : dc.row_id,
114 : &dc);
115 0 : GNUNET_PQ_cleanup_result (rs);
116 0 : if (GNUNET_OK != rval)
117 0 : break;
118 : }
119 : }
120 :
121 :
122 : enum GNUNET_DB_QueryStatus
123 0 : TALER_AUDITORDB_iterate_coin_inconsistencies (
124 : struct TALER_AUDITORDB_PostgresContext *pg,
125 : int64_t limit,
126 : uint64_t offset,
127 : bool return_suppressed, // maybe not needed
128 : TALER_AUDITORDB_CoinInconsistencyCallback cb,
129 : void *cb_cls)
130 : {
131 :
132 0 : uint64_t plimit = GNUNET_MIN ((uint64_t) MAX_RECORDS,
133 : TALER_AUDITORDB_abs_limit (limit));
134 0 : struct GNUNET_PQ_QueryParam params[] = {
135 0 : GNUNET_PQ_query_param_uint64 (&offset),
136 0 : GNUNET_PQ_query_param_bool (return_suppressed),
137 0 : GNUNET_PQ_query_param_uint64 (&plimit),
138 : GNUNET_PQ_query_param_end
139 : };
140 0 : struct CoinInconsistencyContext dcc = {
141 : .cb = cb,
142 : .cb_cls = cb_cls,
143 : .pg = pg
144 : };
145 : enum GNUNET_DB_QueryStatus qs;
146 :
147 :
148 0 : PREPARE (pg,
149 : "iterate_coin_inconsistencies_inconsistency_select_desc",
150 : "SELECT"
151 : " row_id"
152 : ",operation"
153 : ",exchange_amount"
154 : ",auditor_amount"
155 : ",coin_pub"
156 : ",profitable"
157 : ",suppressed"
158 : " FROM auditor_coin_inconsistency"
159 : " WHERE (row_id < $1)"
160 : " AND ($2 OR suppressed is false)"
161 : " ORDER BY row_id DESC"
162 : " LIMIT $3"
163 : );
164 0 : PREPARE (pg,
165 : "iterate_coin_inconsistencies_inconsistency_select_asc",
166 : "SELECT"
167 : " row_id"
168 : ",operation"
169 : ",exchange_amount"
170 : ",auditor_amount"
171 : ",coin_pub"
172 : ",profitable"
173 : ",suppressed"
174 : " FROM auditor_coin_inconsistency"
175 : " WHERE (row_id > $1)"
176 : " AND ($2 OR suppressed is false)"
177 : " ORDER BY row_id ASC"
178 : " LIMIT $3"
179 : );
180 0 : qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
181 : (limit > 0) ?
182 : "iterate_coin_inconsistencies_inconsistency_select_asc"
183 : :
184 : "iterate_coin_inconsistencies_inconsistency_select_desc",
185 : params,
186 : &coin_inconsistency_cb,
187 : &dcc);
188 :
189 :
190 0 : if (qs > 0)
191 0 : return dcc.qs;
192 0 : GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs);
193 0 : return qs;
194 : }
|
