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 "auditor-database/iterate_reserve_not_closed_inconsistencies.h"
19 :
20 :
21 : /**
22 : * Hard upper bound on the number of records returned by a single
23 : * call, regardless of the limit requested by the client.
24 : */
25 : #define MAX_RECORDS 50000
26 :
27 :
28 : struct ReserveNotClosedInconsistencyContext
29 : {
30 :
31 : /**
32 : * Function to call for each bad sig loss.
33 : */
34 : TALER_AUDITORDB_ReserveNotClosedInconsistencyCallback cb;
35 :
36 : /**
37 : * Closure for @e cb
38 : */
39 : void *cb_cls;
40 :
41 : /**
42 : * Plugin context.
43 : */
44 : struct TALER_AUDITORDB_PostgresContext *pg;
45 :
46 : /**
47 : * Query status to return.
48 : */
49 : enum GNUNET_DB_QueryStatus qs;
50 : };
51 :
52 :
53 : /**
54 : * Helper function for #TALER_AUDITORDB_iterate_reserve_not_closed_inconsistencies().
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 ReserveNotClosedInconsistencyContext *`
59 : * @param result the postgres result
60 : * @param num_results the number of results in @a result
61 : */
62 : static void
63 0 : reserve_not_closed_inconsistency_cb (void *cls,
64 : PGresult *result,
65 : unsigned int num_results)
66 : {
67 0 : struct ReserveNotClosedInconsistencyContext *dcc = cls;
68 0 : struct TALER_AUDITORDB_PostgresContext *pg = dcc->pg;
69 :
70 0 : for (unsigned int i = 0; i < num_results; i++)
71 : {
72 : /* 'expiration_time' and 'diagnostic' are nullable in the schema;
73 : initialize them so that a NULL yields "never"/absent instead of
74 : failing the extraction for the entire page. */
75 0 : struct TALER_AUDITORDB_ReserveNotClosedInconsistency dc = {
76 : .expiration_time = GNUNET_TIME_UNIT_FOREVER_ABS,
77 : .diagnostic = NULL
78 : };
79 0 : struct GNUNET_PQ_ResultSpec rs[] = {
80 0 : GNUNET_PQ_result_spec_uint64 ("row_id",
81 : &dc.row_id),
82 0 : GNUNET_PQ_result_spec_auto_from_type ("reserve_pub",
83 : &dc.reserve_pub),
84 0 : TALER_PQ_RESULT_SPEC_AMOUNT ("balance",
85 : &dc.balance),
86 0 : GNUNET_PQ_result_spec_allow_null (
87 : GNUNET_PQ_result_spec_absolute_time ("expiration_time",
88 : &dc.expiration_time),
89 : NULL),
90 0 : GNUNET_PQ_result_spec_allow_null (
91 : GNUNET_PQ_result_spec_string ("diagnostic",
92 : &dc.diagnostic),
93 : NULL),
94 0 : GNUNET_PQ_result_spec_bool ("suppressed",
95 : &dc.suppressed),
96 : GNUNET_PQ_result_spec_end
97 : };
98 : enum GNUNET_GenericReturnValue rval;
99 :
100 0 : if (GNUNET_OK !=
101 0 : GNUNET_PQ_extract_result (result,
102 : rs,
103 : i))
104 : {
105 0 : GNUNET_break (0);
106 0 : dcc->qs = GNUNET_DB_STATUS_HARD_ERROR;
107 0 : return;
108 : }
109 0 : dcc->qs = i + 1;
110 0 : rval = dcc->cb (dcc->cb_cls,
111 : &dc);
112 0 : GNUNET_PQ_cleanup_result (rs);
113 0 : if (GNUNET_OK != rval)
114 0 : break;
115 : }
116 : }
117 :
118 :
119 : enum GNUNET_DB_QueryStatus
120 0 : TALER_AUDITORDB_iterate_reserve_not_closed_inconsistencies (struct
121 : TALER_AUDITORDB_PostgresContext
122 : *pg,
123 : int64_t limit,
124 : uint64_t offset,
125 : bool
126 : return_suppressed,
127 : TALER_AUDITORDB_ReserveNotClosedInconsistencyCallback
128 : cb,
129 : void *cb_cls)
130 : {
131 0 : uint64_t plimit = GNUNET_MIN ((uint64_t) MAX_RECORDS,
132 : TALER_AUDITORDB_abs_limit (limit));
133 0 : struct GNUNET_PQ_QueryParam params[] = {
134 0 : GNUNET_PQ_query_param_uint64 (&offset),
135 0 : GNUNET_PQ_query_param_bool (return_suppressed),
136 0 : GNUNET_PQ_query_param_uint64 (&plimit),
137 : GNUNET_PQ_query_param_end
138 : };
139 0 : struct ReserveNotClosedInconsistencyContext dcc = {
140 : .cb = cb,
141 : .cb_cls = cb_cls,
142 : .pg = pg
143 : };
144 : enum GNUNET_DB_QueryStatus qs;
145 :
146 0 : PREPARE (pg,
147 : "iterate_reserve_not_closed_inconsistencies_desc",
148 : "SELECT"
149 : " row_id"
150 : ",reserve_pub"
151 : ",balance"
152 : ",expiration_time"
153 : ",diagnostic"
154 : ",suppressed"
155 : " FROM auditor_reserve_not_closed_inconsistency"
156 : " WHERE (row_id < $1)"
157 : " AND ($2 OR suppressed is false)"
158 : " ORDER BY row_id DESC"
159 : " LIMIT $3"
160 : );
161 0 : PREPARE (pg,
162 : "iterate_reserve_not_closed_inconsistencies_asc",
163 : "SELECT"
164 : " row_id"
165 : ",reserve_pub"
166 : ",balance"
167 : ",expiration_time"
168 : ",diagnostic"
169 : ",suppressed"
170 : " FROM auditor_reserve_not_closed_inconsistency"
171 : " WHERE (row_id > $1)"
172 : " AND ($2 OR suppressed is false)"
173 : " ORDER BY row_id ASC"
174 : " LIMIT $3"
175 : );
176 0 : qs = GNUNET_PQ_eval_prepared_multi_select (
177 : pg->conn,
178 : (limit > 0)
179 : ? "iterate_reserve_not_closed_inconsistencies_asc"
180 : : "iterate_reserve_not_closed_inconsistencies_desc",
181 : params,
182 : &reserve_not_closed_inconsistency_cb,
183 : &dcc);
184 0 : if (qs > 0)
185 0 : return dcc.qs;
186 0 : GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs);
187 0 : return qs;
188 : }
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