Line data Source code
1 : /*
2 : This file is part of TALER
3 : Copyright (C) 2026 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 src/auditordb/iterate_kycauth_in_inconsistencies.c
18 : * @brief Implementation of the iterate_kycauth_in_inconsistencies function for Postgres
19 : * @author Christian Grothoff
20 : */
21 : #include "taler/taler_error_codes.h"
22 : #include "taler/taler_dbevents.h"
23 : #include "taler/taler_pq_lib.h"
24 : #include "pg_helper.h"
25 : #include "auditor-database/iterate_kycauth_in_inconsistencies.h"
26 :
27 :
28 : /**
29 : * Hard upper bound on the number of records returned by a single
30 : * call, regardless of the limit requested by the client.
31 : */
32 : #define MAX_RECORDS 50000
33 :
34 :
35 : struct KycauthInInconsistencyContext
36 : {
37 :
38 : /**
39 : * Function to call for each inconsistency.
40 : */
41 : TALER_AUDITORDB_KycauthInInconsistencyCallback cb;
42 :
43 : /**
44 : * Closure for @e cb
45 : */
46 : void *cb_cls;
47 :
48 : /**
49 : * Plugin context.
50 : */
51 : struct TALER_AUDITORDB_PostgresContext *pg;
52 :
53 : /**
54 : * Query status to return.
55 : */
56 : enum GNUNET_DB_QueryStatus qs;
57 : };
58 :
59 :
60 : /**
61 : * Helper function for #TALER_AUDITORDB_iterate_kycauth_in_inconsistencies().
62 : * To be called with the results of a SELECT statement
63 : * that has returned @a num_results results.
64 : *
65 : * @param cls closure of type `struct KycauthInInconsistencyContext *`
66 : * @param result the postgres result
67 : * @param num_results the number of results in @a result
68 : */
69 : static void
70 0 : kycauth_in_inconsistency_cb (void *cls,
71 : PGresult *result,
72 : unsigned int num_results)
73 : {
74 0 : struct KycauthInInconsistencyContext *dcc = cls;
75 0 : struct TALER_AUDITORDB_PostgresContext *pg = dcc->pg;
76 :
77 0 : for (unsigned int i = 0; i < num_results; i++)
78 : {
79 : struct TALER_AUDITORDB_KycauthInInconsistency dc;
80 0 : struct GNUNET_PQ_ResultSpec rs[] = {
81 0 : GNUNET_PQ_result_spec_uint64 ("row_id",
82 : &dc.serial_id),
83 0 : GNUNET_PQ_result_spec_uint64 ("bank_row_id",
84 : &dc.bank_row_id),
85 0 : TALER_PQ_RESULT_SPEC_AMOUNT ("amount_exchange_expected",
86 : &dc.amount_exchange_expected),
87 0 : TALER_PQ_RESULT_SPEC_AMOUNT ("amount_wired",
88 : &dc.amount_wired),
89 0 : GNUNET_PQ_result_spec_auto_from_type ("account_pub",
90 : &dc.account_pub),
91 0 : GNUNET_PQ_result_spec_absolute_time ("timestamp",
92 : &dc.timestamp),
93 0 : GNUNET_PQ_result_spec_string ("account",
94 : &dc.account.full_payto),
95 0 : GNUNET_PQ_result_spec_string ("diagnostic",
96 : &dc.diagnostic),
97 0 : GNUNET_PQ_result_spec_bool ("suppressed",
98 : &dc.suppressed),
99 : GNUNET_PQ_result_spec_end
100 : };
101 : enum GNUNET_GenericReturnValue rval;
102 :
103 0 : if (GNUNET_OK !=
104 0 : GNUNET_PQ_extract_result (result,
105 : rs,
106 : i))
107 : {
108 0 : GNUNET_break (0);
109 0 : dcc->qs = GNUNET_DB_STATUS_HARD_ERROR;
110 0 : return;
111 : }
112 :
113 0 : dcc->qs = i + 1;
114 0 : rval = dcc->cb (dcc->cb_cls,
115 : &dc);
116 0 : GNUNET_PQ_cleanup_result (rs);
117 0 : if (GNUNET_OK != rval)
118 0 : break;
119 : }
120 : }
121 :
122 :
123 : enum GNUNET_DB_QueryStatus
124 0 : TALER_AUDITORDB_iterate_kycauth_in_inconsistencies (
125 : struct TALER_AUDITORDB_PostgresContext *pg,
126 : int64_t limit,
127 : uint64_t offset,
128 : bool return_suppressed,
129 : TALER_AUDITORDB_KycauthInInconsistencyCallback cb,
130 : void *cb_cls)
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 KycauthInInconsistencyContext dcc = {
141 : .cb = cb,
142 : .cb_cls = cb_cls,
143 : .pg = pg
144 : };
145 : enum GNUNET_DB_QueryStatus qs;
146 :
147 0 : PREPARE (pg,
148 : "iterate_kycauth_in_inconsistencies_get_desc",
149 : "SELECT"
150 : " row_id"
151 : ",bank_row_id"
152 : ",amount_exchange_expected"
153 : ",amount_wired"
154 : ",account_pub"
155 : ",timestamp"
156 : ",account"
157 : ",diagnostic"
158 : ",suppressed"
159 : " FROM auditor_kycauth_in_inconsistency"
160 : " WHERE (row_id < $1)"
161 : " AND ($2 OR suppressed is false)"
162 : " ORDER BY row_id DESC"
163 : " LIMIT $3"
164 : );
165 0 : PREPARE (pg,
166 : "iterate_kycauth_in_inconsistencies_get_asc",
167 : "SELECT"
168 : " row_id"
169 : ",bank_row_id"
170 : ",amount_exchange_expected"
171 : ",amount_wired"
172 : ",account_pub"
173 : ",timestamp"
174 : ",account"
175 : ",diagnostic"
176 : ",suppressed"
177 : " FROM auditor_kycauth_in_inconsistency"
178 : " WHERE (row_id > $1)"
179 : " AND ($2 OR suppressed is false)"
180 : " ORDER BY row_id ASC"
181 : " LIMIT $3"
182 : );
183 0 : qs = GNUNET_PQ_eval_prepared_multi_select (
184 : pg->conn,
185 : (limit > 0)
186 : ? "iterate_kycauth_in_inconsistencies_get_asc"
187 : : "iterate_kycauth_in_inconsistencies_get_desc",
188 : params,
189 : &kycauth_in_inconsistency_cb,
190 : &dcc);
191 0 : if (qs > 0)
192 0 : return dcc.qs;
193 0 : GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs);
194 0 : return qs;
195 : }
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