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 :
18 : #include "taler/taler_pq_lib.h"
19 : #include "pg_helper.h"
20 :
21 : #include "auditor-database/iterate_exchange_signkeys.h"
22 :
23 :
24 : /**
25 : * Hard upper bound on the number of records returned by a single
26 : * call, regardless of the limit requested by the client.
27 : */
28 : #define MAX_RECORDS 50000
29 :
30 :
31 : struct ExchangeSignkeysContext
32 : {
33 :
34 : /**
35 : * Function to call for each bad sig loss.
36 : */
37 : TALER_AUDITORDB_ExchangeSignkeysCallback 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_exchange_signkeys().
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 ExchangeSignkeysContext *`
62 : * @param result the postgres result
63 : * @param num_results the number of results in @a result
64 : */
65 : static void
66 0 : exchange_signkeys_cb (void *cls,
67 : PGresult *result,
68 : unsigned int num_results)
69 : {
70 0 : struct ExchangeSignkeysContext *dcc = cls;
71 : // struct TALER_AUDITORDB_PostgresContext *pg = dcc->pg;
72 :
73 0 : for (unsigned int i = 0; i < num_results; i++)
74 : {
75 : uint64_t serial_id;
76 : struct TALER_AUDITORDB_ExchangeSignkeys dc;
77 0 : struct GNUNET_PQ_ResultSpec rs[] = {
78 0 : GNUNET_PQ_result_spec_uint64 ("row_id",
79 : &serial_id),
80 0 : GNUNET_PQ_result_spec_auto_from_type ("exchange_pub",
81 : &dc.exchange_pub),
82 0 : GNUNET_PQ_result_spec_auto_from_type ("master_sig",
83 : &dc.master_sig),
84 0 : GNUNET_PQ_result_spec_absolute_time ("ep_valid_from",
85 : &dc.ep_valid_from),
86 0 : GNUNET_PQ_result_spec_absolute_time ("ep_expire_sign",
87 : &dc.ep_expire_sign),
88 0 : GNUNET_PQ_result_spec_absolute_time ("ep_expire_legal",
89 : &dc.ep_expire_legal),
90 : GNUNET_PQ_result_spec_end
91 : };
92 : enum GNUNET_GenericReturnValue rval;
93 :
94 0 : if (GNUNET_OK !=
95 0 : GNUNET_PQ_extract_result (result,
96 : rs,
97 : i))
98 : {
99 0 : GNUNET_break (0);
100 0 : dcc->qs = GNUNET_DB_STATUS_HARD_ERROR;
101 0 : return;
102 : }
103 :
104 0 : dcc->qs = i + 1;
105 :
106 0 : rval = dcc->cb (dcc->cb_cls,
107 : serial_id,
108 : &dc);
109 0 : GNUNET_PQ_cleanup_result (rs);
110 0 : if (GNUNET_OK != rval)
111 0 : break;
112 : }
113 : }
114 :
115 :
116 : enum GNUNET_DB_QueryStatus
117 0 : TALER_AUDITORDB_iterate_exchange_signkeys (
118 : struct TALER_AUDITORDB_PostgresContext *pg,
119 : int64_t limit,
120 : uint64_t offset,
121 : TALER_AUDITORDB_ExchangeSignkeysCallback cb,
122 : void *cb_cls)
123 : {
124 0 : uint64_t plimit = GNUNET_MIN ((uint64_t) MAX_RECORDS,
125 : TALER_AUDITORDB_abs_limit (limit));
126 0 : struct GNUNET_PQ_QueryParam params[] = {
127 0 : GNUNET_PQ_query_param_uint64 (&offset),
128 0 : GNUNET_PQ_query_param_uint64 (&plimit),
129 : GNUNET_PQ_query_param_end
130 : };
131 0 : struct ExchangeSignkeysContext dcc = {
132 : .cb = cb,
133 : .cb_cls = cb_cls,
134 : .pg = pg
135 : };
136 : enum GNUNET_DB_QueryStatus qs;
137 :
138 0 : PREPARE (pg,
139 : "iterate_exchange_signkeys_desc",
140 : "SELECT"
141 : " row_id,"
142 : " exchange_pub,"
143 : " master_sig,"
144 : " ep_valid_from,"
145 : " ep_expire_sign,"
146 : " ep_expire_legal"
147 : " FROM auditor_exchange_signkeys"
148 : " WHERE (row_id < $1)"
149 : " ORDER BY row_id DESC"
150 : " LIMIT $2"
151 : );
152 0 : PREPARE (pg,
153 : "iterate_exchange_signkeys_asc",
154 : "SELECT"
155 : " row_id,"
156 : " exchange_pub,"
157 : " master_sig,"
158 : " ep_valid_from,"
159 : " ep_expire_sign,"
160 : " ep_expire_legal"
161 : " FROM auditor_exchange_signkeys"
162 : " WHERE (row_id > $1)"
163 : " ORDER BY row_id ASC"
164 : " LIMIT $2"
165 : );
166 0 : qs = GNUNET_PQ_eval_prepared_multi_select (
167 : pg->conn,
168 : (limit > 0)
169 : ? "iterate_exchange_signkeys_asc"
170 : : "iterate_exchange_signkeys_desc",
171 : params,
172 : &exchange_signkeys_cb,
173 : &dcc);
174 0 : if (qs > 0)
175 0 : return dcc.qs;
176 0 : GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs);
177 0 : return qs;
178 : }
|
