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 "platform.h"
18 : #include "taler_error_codes.h"
19 : #include "taler_dbevents.h"
20 : #include "taler_pq_lib.h"
21 : #include "pg_helper.h"
22 : #include "pg_get_row_inconsistency.h"
23 :
24 : /**
25 : * Closure for #deposit_confirmation_cb().
26 : */
27 : struct RowInconsistencyContext
28 : {
29 :
30 : /**
31 : * Function to call for each deposit confirmation.
32 : */
33 : TALER_AUDITORDB_RowInconsistencyCallback cb;
34 :
35 : /**
36 : * Closure for @e cb
37 : */
38 : void *cb_cls;
39 :
40 : /**
41 : * Plugin context.
42 : */
43 : struct PostgresClosure *pg;
44 :
45 : /**
46 : * Query status to return.
47 : */
48 : enum GNUNET_DB_QueryStatus qs;
49 : };
50 :
51 :
52 : /**
53 : * Helper function for #TAH_PG_get_deposit_confirmations().
54 : * To be called with the results of a SELECT statement
55 : * that has returned @a num_results results.
56 : *
57 : * @param cls closure of type `struct DepositConfirmationContext *`
58 : * @param result the postgres result
59 : * @param num_results the number of results in @a result
60 : */
61 : static void
62 4 : row_inconsistency_cb (void *cls,
63 : PGresult *result,
64 : unsigned int num_results)
65 : {
66 4 : struct RowInconsistencyContext *dcc = cls;
67 :
68 8 : for (unsigned int i = 0; i < num_results; i++)
69 : {
70 : uint64_t serial_id;
71 :
72 : struct TALER_AUDITORDB_RowInconsistency dc;
73 :
74 4 : struct GNUNET_PQ_ResultSpec rs[] = {
75 4 : GNUNET_PQ_result_spec_uint64 ("row_id", &serial_id),
76 :
77 4 : GNUNET_PQ_result_spec_string ("row_table", &dc.row_table),
78 4 : GNUNET_PQ_result_spec_string ("diagnostic", &dc.diagnostic),
79 4 : GNUNET_PQ_result_spec_bool ("suppressed", &dc.suppressed),
80 :
81 :
82 : GNUNET_PQ_result_spec_end
83 : };
84 : enum GNUNET_GenericReturnValue rval;
85 :
86 4 : if (GNUNET_OK !=
87 4 : GNUNET_PQ_extract_result (result,
88 : rs,
89 : i))
90 : {
91 0 : GNUNET_break (0);
92 0 : dcc->qs = GNUNET_DB_STATUS_HARD_ERROR;
93 0 : return;
94 : }
95 :
96 4 : dcc->qs = i + 1;
97 :
98 :
99 4 : rval = dcc->cb (dcc->cb_cls,
100 : serial_id,
101 : &dc);
102 4 : GNUNET_PQ_cleanup_result (rs);
103 4 : if (GNUNET_OK != rval)
104 0 : break;
105 : }
106 : }
107 :
108 :
109 : enum GNUNET_DB_QueryStatus
110 4 : TAH_PG_get_row_inconsistency (
111 : void *cls,
112 : int64_t limit,
113 : uint64_t offset,
114 : bool return_suppressed, // maybe not needed
115 : TALER_AUDITORDB_RowInconsistencyCallback cb,
116 : void *cb_cls)
117 : {
118 :
119 4 : uint64_t plimit = (uint64_t) ((limit < 0) ? -limit : limit);
120 :
121 4 : struct PostgresClosure *pg = cls;
122 4 : struct GNUNET_PQ_QueryParam params[] = {
123 4 : GNUNET_PQ_query_param_uint64 (&offset),
124 4 : GNUNET_PQ_query_param_bool (return_suppressed),
125 4 : GNUNET_PQ_query_param_uint64 (&plimit),
126 : GNUNET_PQ_query_param_end
127 : };
128 4 : struct RowInconsistencyContext dcc = {
129 : .cb = cb,
130 : .cb_cls = cb_cls,
131 : .pg = pg
132 : };
133 : enum GNUNET_DB_QueryStatus qs;
134 :
135 :
136 4 : PREPARE (pg,
137 : "auditor_row_inconsistency_select_desc",
138 : "SELECT"
139 : " row_id"
140 : ",row_table"
141 : ",diagnostic"
142 : ",suppressed"
143 : " FROM auditor_row_inconsistency"
144 : " WHERE (row_id < $1)"
145 : " AND ($2 OR suppressed is false)"
146 : " ORDER BY row_id DESC"
147 : " LIMIT $3"
148 : );
149 4 : PREPARE (pg,
150 : "auditor_row_inconsistency_select_asc",
151 : "SELECT"
152 : " row_id"
153 : ",row_table"
154 : ",diagnostic"
155 : ",suppressed"
156 : " FROM auditor_row_inconsistency"
157 : " WHERE (row_id > $1)"
158 : " AND ($2 OR suppressed is false)"
159 : " ORDER BY row_id DESC"
160 : " LIMIT $3"
161 : );
162 4 : qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
163 : (limit > 0) ?
164 : "auditor_row_inconsistency_select_asc"
165 : :
166 : "auditor_row_inconsistency_select_desc",
167 : params,
168 : &row_inconsistency_cb,
169 : &dcc);
170 :
171 :
172 4 : if (qs > 0)
173 4 : return dcc.qs;
174 0 : GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs);
175 0 : return qs;
176 : }
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