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 "platform.h"
19 : #include "taler_error_codes.h"
20 : #include "taler_dbevents.h"
21 : #include "taler_pq_lib.h"
22 : #include "pg_helper.h"
23 :
24 : #include "pg_get_exchange_signkeys.h"
25 :
26 :
27 : struct ExchangeSignkeysContext
28 : {
29 :
30 : /**
31 : * Function to call for each bad sig loss.
32 : */
33 : TALER_AUDITORDB_ExchangeSignkeysCallback 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_exchange_signkeys().
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 ExchangeSignkeysContext *`
58 : * @param result the postgres result
59 : * @param num_results the number of results in @a result
60 : */
61 : static void
62 0 : exchange_signkeys_cb (void *cls,
63 : PGresult *result,
64 : unsigned int num_results)
65 : {
66 0 : struct ExchangeSignkeysContext *dcc = cls;
67 : // struct PostgresClosure *pg = dcc->pg;
68 :
69 0 : for (unsigned int i = 0; i < num_results; i++)
70 : {
71 : uint64_t serial_id;
72 :
73 : struct TALER_AUDITORDB_ExchangeSignkeys dc;
74 :
75 0 : struct GNUNET_PQ_ResultSpec rs[] = {
76 :
77 0 : GNUNET_PQ_result_spec_uint64 ("row_id", &serial_id),
78 :
79 0 : GNUNET_PQ_result_spec_auto_from_type ("exchange_pub", &dc.exchange_pub),
80 0 : GNUNET_PQ_result_spec_auto_from_type ("master_sig", &dc.master_sig),
81 0 : GNUNET_PQ_result_spec_absolute_time ("ep_valid_from", &dc.ep_valid_from),
82 0 : GNUNET_PQ_result_spec_absolute_time ("ep_expire_sign",
83 : &dc.ep_expire_sign),
84 0 : GNUNET_PQ_result_spec_absolute_time ("ep_expire_legal",
85 : &dc.ep_expire_legal),
86 0 : GNUNET_PQ_result_spec_bool ("suppressed", &dc.suppressed),
87 :
88 :
89 : GNUNET_PQ_result_spec_end
90 : };
91 : enum GNUNET_GenericReturnValue rval;
92 :
93 0 : if (GNUNET_OK !=
94 0 : GNUNET_PQ_extract_result (result,
95 : rs,
96 : i))
97 : {
98 0 : GNUNET_break (0);
99 0 : dcc->qs = GNUNET_DB_STATUS_HARD_ERROR;
100 0 : return;
101 : }
102 :
103 0 : dcc->qs = i + 1;
104 :
105 0 : rval = dcc->cb (dcc->cb_cls,
106 : serial_id,
107 : &dc);
108 0 : GNUNET_PQ_cleanup_result (rs);
109 0 : if (GNUNET_OK != rval)
110 0 : break;
111 : }
112 : }
113 :
114 :
115 : enum GNUNET_DB_QueryStatus
116 0 : TAH_PG_get_exchange_signkeys (
117 : void *cls,
118 : int64_t limit,
119 : uint64_t offset,
120 : bool return_suppressed, // maybe not needed
121 : TALER_AUDITORDB_ExchangeSignkeysCallback cb,
122 : void *cb_cls)
123 : {
124 :
125 0 : uint64_t plimit = (uint64_t) ((limit < 0) ? -limit : limit);
126 :
127 0 : struct PostgresClosure *pg = cls;
128 0 : struct GNUNET_PQ_QueryParam params[] = {
129 0 : GNUNET_PQ_query_param_uint64 (&offset),
130 0 : GNUNET_PQ_query_param_bool (return_suppressed),
131 0 : GNUNET_PQ_query_param_uint64 (&plimit),
132 : GNUNET_PQ_query_param_end
133 : };
134 0 : struct ExchangeSignkeysContext dcc = {
135 : .cb = cb,
136 : .cb_cls = cb_cls,
137 : .pg = pg
138 : };
139 : enum GNUNET_DB_QueryStatus qs;
140 :
141 0 : PREPARE (pg,
142 : "auditor_exchange_signkeys_get_desc",
143 : "SELECT"
144 : " row_id,"
145 : " exchange_pub,"
146 : " master_sig,"
147 : " ep_valid_from,"
148 : " ep_expire_sign,"
149 : " ep_expire_legal,"
150 : " suppressed"
151 : " FROM auditor_exchange_signkeys"
152 : " WHERE (row_id < $1)"
153 : " AND ($2 OR suppressed is false)"
154 : " ORDER BY row_id DESC"
155 : " LIMIT $3"
156 : );
157 0 : PREPARE (pg,
158 : "auditor_exchange_signkeys_get_asc",
159 : "SELECT"
160 : " row_id,"
161 : " exchange_pub,"
162 : " master_sig,"
163 : " ep_valid_from,"
164 : " ep_expire_sign,"
165 : " ep_expire_legal,"
166 : " suppressed"
167 : " FROM auditor_exchange_signkeys"
168 : " WHERE (row_id > $1)"
169 : " AND ($2 OR suppressed is false)"
170 : " ORDER BY row_id ASC"
171 : " LIMIT $3"
172 : );
173 0 : qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
174 : (limit > 0)
175 : ?
176 : "auditor_exchange_signkeys_get_asc"
177 : :
178 : "auditor_exchange_signkeys_get_desc",
179 : params,
180 : &exchange_signkeys_cb,
181 : &dcc);
182 :
183 0 : if (qs > 0)
184 0 : return dcc.qs;
185 0 : GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs);
186 0 : return qs;
187 : }
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