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/platform.h"
17 : #include "taler/taler_error_codes.h"
18 : #include "taler/taler_dbevents.h"
19 : #include "taler/taler_pq_lib.h"
20 : #include "pg_helper.h"
21 : #include "pg_get_denominations_without_sigs.h"
22 :
23 :
24 : struct DenominationsWithoutSigsContext
25 : {
26 :
27 : /**
28 : * Function to call for each bad sig loss.
29 : */
30 : TALER_AUDITORDB_DenominationsWithoutSigsCallback cb;
31 :
32 : /**
33 : * Closure for @e cb
34 : */
35 : void *cb_cls;
36 :
37 : /**
38 : * Plugin context.
39 : */
40 : struct PostgresClosure *pg;
41 :
42 : /**
43 : * Query status to return.
44 : */
45 : enum GNUNET_DB_QueryStatus qs;
46 : };
47 :
48 :
49 : /**
50 : * Helper function for #TAH_PG_get_denominations_without_sigs().
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 DenominationsWithoutSigsContext *`
55 : * @param result the postgres result
56 : * @param num_results the number of results in @a result
57 : */
58 : static void
59 0 : denominations_without_sigs_cb (void *cls,
60 : PGresult *result,
61 : unsigned int num_results)
62 : {
63 0 : struct DenominationsWithoutSigsContext *dcc = cls;
64 0 : struct PostgresClosure *pg = dcc->pg;
65 :
66 0 : for (unsigned int i = 0; i < num_results; i++)
67 : {
68 : struct TALER_AUDITORDB_DenominationsWithoutSigs dc;
69 0 : struct GNUNET_PQ_ResultSpec rs[] = {
70 0 : GNUNET_PQ_result_spec_uint64 ("row_id",
71 : &dc.row_id),
72 0 : GNUNET_PQ_result_spec_auto_from_type ("denompub_h",
73 : &dc.denompub_h),
74 0 : TALER_PQ_RESULT_SPEC_AMOUNT ("value",
75 : &dc.value),
76 0 : GNUNET_PQ_result_spec_absolute_time ("start_time",
77 : &dc.start_time),
78 0 : GNUNET_PQ_result_spec_absolute_time ("end_time",
79 : &dc.end_time),
80 0 : GNUNET_PQ_result_spec_bool ("suppressed",
81 : &dc.suppressed),
82 : GNUNET_PQ_result_spec_end
83 : };
84 : enum GNUNET_GenericReturnValue rval;
85 :
86 0 : if (GNUNET_OK !=
87 0 : 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 0 : dcc->qs = i + 1;
97 :
98 0 : rval = dcc->cb (dcc->cb_cls,
99 : &dc);
100 0 : GNUNET_PQ_cleanup_result (rs);
101 0 : if (GNUNET_OK != rval)
102 0 : break;
103 : }
104 : }
105 :
106 :
107 : enum GNUNET_DB_QueryStatus
108 0 : TAH_PG_get_denominations_without_sigs (
109 : void *cls,
110 : int64_t limit,
111 : uint64_t offset,
112 : bool return_suppressed,
113 : TALER_AUDITORDB_DenominationsWithoutSigsCallback cb,
114 : void *cb_cls)
115 : {
116 0 : struct PostgresClosure *pg = cls;
117 0 : uint64_t plimit = (uint64_t) ((limit < 0) ? -limit : limit);
118 0 : struct GNUNET_PQ_QueryParam params[] = {
119 0 : GNUNET_PQ_query_param_uint64 (&offset),
120 0 : GNUNET_PQ_query_param_bool (return_suppressed),
121 0 : GNUNET_PQ_query_param_uint64 (&plimit),
122 : GNUNET_PQ_query_param_end
123 : };
124 0 : struct DenominationsWithoutSigsContext dcc = {
125 : .cb = cb,
126 : .cb_cls = cb_cls,
127 : .pg = pg
128 : };
129 : enum GNUNET_DB_QueryStatus qs;
130 :
131 0 : PREPARE (pg,
132 : "auditor_denominations_without_sigs_get_desc",
133 : "SELECT"
134 : " row_id,"
135 : " denompub_h,"
136 : " value,"
137 : " start_time,"
138 : " end_time,"
139 : " suppressed"
140 : " FROM auditor_denominations_without_sigs"
141 : " WHERE (row_id < $1)"
142 : " AND ($2 OR NOT suppressed)"
143 : " ORDER BY row_id DESC"
144 : " LIMIT $3"
145 : );
146 0 : PREPARE (pg,
147 : "auditor_denominations_without_sigs_get_asc",
148 : "SELECT"
149 : " row_id,"
150 : " denompub_h,"
151 : " value,"
152 : " start_time,"
153 : " end_time,"
154 : " suppressed"
155 : " FROM auditor_denominations_without_sigs"
156 : " WHERE (row_id > $1)"
157 : " AND ($2 OR NOT suppressed)"
158 : " ORDER BY row_id ASC"
159 : " LIMIT $3"
160 : );
161 0 : qs = GNUNET_PQ_eval_prepared_multi_select (
162 : pg->conn,
163 : (limit > 0)
164 : ? "auditor_denominations_without_sigs_get_asc"
165 : : "auditor_denominations_without_sigs_get_desc",
166 : params,
167 : &denominations_without_sigs_cb,
168 : &dcc);
169 0 : if (qs > 0)
170 0 : return dcc.qs;
171 0 : GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs);
172 0 : return qs;
173 : }
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