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_fee_time_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 : /**
29 : * Closure for #feetimeinconsistency_cb().
30 : */
31 : struct FeeTimeInconsistencyContext
32 : {
33 :
34 : /**
35 : * Function to call for each fee time inconsistency
36 : */
37 : TALER_AUDITORDB_FeeTimeInconsistencyCallback cb;
38 :
39 : /**
40 : * Closure for @e cb
41 : */
42 : void *cb_cls;
43 :
44 : /**
45 : * Plugin context.
46 : */
47 : struct TALER_AUDITORDB_PostgresContext *pg;
48 :
49 : /**
50 : * Query status to return.
51 : */
52 : enum GNUNET_DB_QueryStatus qs;
53 : };
54 :
55 :
56 : /**
57 : * Helper function for #TALER_AUDITORDB_iterate_fee_time_inconsistencies().
58 : * To be called with the results of a SELECT statement
59 : * that has returned @a num_results results.
60 : *
61 : * @param cls closure of type `struct Emergency *`
62 : * @param result the postgres result
63 : * @param num_results the number of results in @a result
64 : */
65 : static void
66 0 : fee_time_inconsistency_cb (void *cls,
67 : PGresult *result,
68 : unsigned int num_results)
69 : {
70 0 : struct FeeTimeInconsistencyContext *dcc = cls;
71 0 : for (unsigned int i = 0; i < num_results; i++)
72 : {
73 : struct TALER_AUDITORDB_FeeTimeInconsistency 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_uint64 ("problem_row_id",
78 : &dc.problem_row_id),
79 0 : GNUNET_PQ_result_spec_string ("fee_type",
80 : &dc.type),
81 0 : GNUNET_PQ_result_spec_absolute_time ("fee_time",
82 : &dc.time),
83 0 : GNUNET_PQ_result_spec_string ("diagnostic",
84 : &dc.diagnostic),
85 0 : GNUNET_PQ_result_spec_bool ("suppressed",
86 : &dc.suppressed),
87 : GNUNET_PQ_result_spec_end
88 : };
89 : enum GNUNET_GenericReturnValue rval;
90 :
91 0 : if (GNUNET_OK !=
92 0 : GNUNET_PQ_extract_result (result,
93 : rs,
94 : i))
95 : {
96 0 : GNUNET_break (0);
97 0 : dcc->qs = GNUNET_DB_STATUS_HARD_ERROR;
98 0 : return;
99 : }
100 0 : dcc->qs = i + 1;
101 0 : rval = dcc->cb (dcc->cb_cls,
102 : &dc);
103 0 : GNUNET_PQ_cleanup_result (rs);
104 0 : if (GNUNET_OK != rval)
105 0 : break;
106 : }
107 : }
108 :
109 :
110 : enum GNUNET_DB_QueryStatus
111 0 : TALER_AUDITORDB_iterate_fee_time_inconsistencies (
112 : struct TALER_AUDITORDB_PostgresContext *pg,
113 : int64_t limit,
114 : uint64_t offset,
115 : bool return_suppressed,
116 : TALER_AUDITORDB_FeeTimeInconsistencyCallback cb,
117 : void *cb_cls)
118 : {
119 0 : uint64_t plimit = GNUNET_MIN ((uint64_t) MAX_RECORDS,
120 : TALER_AUDITORDB_abs_limit (limit));
121 0 : struct GNUNET_PQ_QueryParam params[] = {
122 0 : GNUNET_PQ_query_param_uint64 (&offset),
123 0 : GNUNET_PQ_query_param_bool (return_suppressed),
124 0 : GNUNET_PQ_query_param_uint64 (&plimit),
125 : GNUNET_PQ_query_param_end
126 : };
127 0 : struct FeeTimeInconsistencyContext dcc = {
128 : .cb = cb,
129 : .cb_cls = cb_cls,
130 : .pg = pg
131 : };
132 : enum GNUNET_DB_QueryStatus qs;
133 :
134 0 : PREPARE (pg,
135 : "iterate_fee_time_inconsistencies_inconsistency_get_desc",
136 : "SELECT"
137 : " row_id"
138 : ",problem_row_id"
139 : ",fee_type"
140 : ",fee_time"
141 : ",diagnostic"
142 : ",suppressed"
143 : " FROM auditor_fee_time_inconsistency"
144 : " WHERE (row_id < $1)"
145 : " AND ($2 OR NOT suppressed)"
146 : " ORDER BY row_id DESC"
147 : " LIMIT $3"
148 : );
149 0 : PREPARE (pg,
150 : "iterate_fee_time_inconsistencies_inconsistency_get_asc",
151 : "SELECT"
152 : " row_id"
153 : ",problem_row_id"
154 : ",fee_type"
155 : ",fee_time"
156 : ",diagnostic"
157 : ",suppressed"
158 : " FROM auditor_fee_time_inconsistency"
159 : " WHERE (row_id > $1)"
160 : " AND ($2 OR NOT suppressed)"
161 : " ORDER BY row_id ASC"
162 : " LIMIT $3"
163 : );
164 0 : qs = GNUNET_PQ_eval_prepared_multi_select (
165 : pg->conn,
166 : (limit > 0)
167 : ? "iterate_fee_time_inconsistencies_inconsistency_get_asc"
168 : : "iterate_fee_time_inconsistencies_inconsistency_get_desc",
169 : params,
170 : &fee_time_inconsistency_cb,
171 : &dcc);
172 0 : if (qs > 0)
173 0 : return dcc.qs;
174 0 : GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs);
175 0 : return qs;
176 : }
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