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 "platform.h"
17 : #include "taler_error_codes.h"
18 : #include "taler_dbevents.h"
19 : #include "taler_pq_lib.h"
20 : #include "pg_helper.h"
21 : #include "pg_get_denomination_pending.h"
22 :
23 :
24 : struct DenominationPendingContext
25 : {
26 :
27 : /**
28 : * Function to call for each bad sig loss.
29 : */
30 : TALER_AUDITORDB_DenominationPendingCallback 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_denomination_pending().
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 DenominationPendingContext *`
55 : * @param result the postgres result
56 : * @param num_results the number of results in @a result
57 : */
58 : static void
59 0 : denomination_pending_cb (void *cls,
60 : PGresult *result,
61 : unsigned int num_results)
62 : {
63 0 : struct DenominationPendingContext *dcc = cls;
64 0 : struct PostgresClosure *pg = dcc->pg;
65 :
66 0 : for (unsigned int i = 0; i < num_results; i++)
67 : {
68 : uint64_t serial_id;
69 : struct TALER_AUDITORDB_DenominationPending dc;
70 0 : struct GNUNET_PQ_ResultSpec rs[] = {
71 0 : GNUNET_PQ_result_spec_uint64 ("row_id",
72 : &serial_id),
73 0 : GNUNET_PQ_result_spec_auto_from_type ("denom_pub_hash",
74 : &dc.denom_pub_hash),
75 0 : TALER_PQ_RESULT_SPEC_AMOUNT ("denom_balance",
76 : &dc.denom_balance),
77 0 : TALER_PQ_RESULT_SPEC_AMOUNT ("denom_loss",
78 : &dc.denom_loss),
79 0 : GNUNET_PQ_result_spec_uint64 ("num_issued",
80 : &dc.num_issued),
81 0 : TALER_PQ_RESULT_SPEC_AMOUNT ("denom_risk",
82 : &dc.denom_risk),
83 0 : TALER_PQ_RESULT_SPEC_AMOUNT ("recoup_loss",
84 : &dc.recoup_loss),
85 : GNUNET_PQ_result_spec_end
86 : };
87 : enum GNUNET_GenericReturnValue rval;
88 :
89 0 : if (GNUNET_OK !=
90 0 : GNUNET_PQ_extract_result (result,
91 : rs,
92 : i))
93 : {
94 0 : GNUNET_break (0);
95 0 : dcc->qs = GNUNET_DB_STATUS_HARD_ERROR;
96 0 : return;
97 : }
98 0 : dcc->qs = i + 1;
99 0 : rval = dcc->cb (dcc->cb_cls,
100 : serial_id,
101 : &dc);
102 0 : GNUNET_PQ_cleanup_result (rs);
103 0 : if (GNUNET_OK != rval)
104 0 : break;
105 : }
106 : }
107 :
108 :
109 : enum GNUNET_DB_QueryStatus
110 0 : TAH_PG_get_denomination_pending (
111 : void *cls,
112 : int64_t limit,
113 : uint64_t offset,
114 : TALER_AUDITORDB_DenominationPendingCallback cb,
115 : void *cb_cls)
116 : {
117 0 : struct PostgresClosure *pg = cls;
118 0 : uint64_t plimit = (uint64_t) ((limit < 0) ? -limit : limit);
119 0 : struct GNUNET_PQ_QueryParam params[] = {
120 0 : GNUNET_PQ_query_param_uint64 (&offset),
121 0 : GNUNET_PQ_query_param_uint64 (&plimit),
122 : GNUNET_PQ_query_param_end
123 : };
124 0 : struct DenominationPendingContext 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_denomination_pending_get_desc",
133 : "SELECT"
134 : " row_id,"
135 : " denom_pub_hash,"
136 : " denom_balance,"
137 : " denom_loss,"
138 : " num_issued,"
139 : " denom_risk,"
140 : " recoup_loss"
141 : " FROM auditor_denomination_pending"
142 : " WHERE (row_id < $1)"
143 : " ORDER BY row_id DESC"
144 : " LIMIT $2"
145 : );
146 0 : PREPARE (pg,
147 : "auditor_denomination_pending_get_asc",
148 : "SELECT"
149 : " row_id,"
150 : " denom_pub_hash,"
151 : " denom_balance,"
152 : " denom_loss,"
153 : " num_issued,"
154 : " denom_risk,"
155 : " recoup_loss"
156 : " FROM auditor_denomination_pending"
157 : " WHERE (row_id > $1)"
158 : " ORDER BY row_id ASC"
159 : " LIMIT $2"
160 : );
161 0 : qs = GNUNET_PQ_eval_prepared_multi_select (
162 : pg->conn,
163 : (limit > 0)
164 : ? "auditor_denomination_pending_get_asc"
165 : : "auditor_denomination_pending_get_desc",
166 : params,
167 : &denomination_pending_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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