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