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