Line data Source code
1 : /*
2 : This file is part of TALER
3 : Copyright (C) 2026 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 : * @file src/exchangedb/iterate_aml_staff_above_serial_id.c
18 : * @brief Implementation of the iterate_aml_staff_above_serial_id function for Postgres
19 : * @author Christian Grothoff
20 : */
21 : #include "taler/taler_pq_lib.h"
22 : #include "helper.h"
23 : #include "exchange-database/iterate_aml_staff_above_serial_id.h"
24 :
25 :
26 : /**
27 : * Closure for #aml_staff_cb().
28 : */
29 : struct AmlStaffContext
30 : {
31 : /**
32 : * Function to call for each status change.
33 : */
34 : TALER_EXCHANGEDB_AmlStaffCallback cb;
35 :
36 : /**
37 : * Closure for @e cb.
38 : */
39 : void *cb_cls;
40 :
41 : /**
42 : * Query status to return.
43 : */
44 : enum GNUNET_DB_QueryStatus qs;
45 : };
46 :
47 :
48 : /**
49 : * Helper function for
50 : * #TALER_EXCHANGEDB_iterate_aml_staff_above_serial_id().
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 AmlStaffContext *`
55 : * @param result the postgres result
56 : * @param num_results the number of results in @a result
57 : */
58 : static void
59 6 : aml_staff_cb (void *cls,
60 : PGresult *result,
61 : unsigned int num_results)
62 : {
63 6 : struct AmlStaffContext *asc = cls;
64 :
65 13 : for (unsigned int i = 0; i < num_results; i++)
66 : {
67 : uint64_t rowid;
68 : struct TALER_AmlOfficerPublicKeyP decider_pub;
69 : struct TALER_MasterSignatureP master_sig;
70 8 : char *decider_name = NULL;
71 : bool is_active;
72 : bool read_only;
73 : struct GNUNET_TIME_Timestamp last_change;
74 : bool no_master_sig;
75 8 : struct GNUNET_PQ_ResultSpec rs[] = {
76 8 : GNUNET_PQ_result_spec_uint64 ("aml_staff_uuid",
77 : &rowid),
78 8 : GNUNET_PQ_result_spec_auto_from_type ("decider_pub",
79 : &decider_pub),
80 : /* the column has no NOT NULL constraint, and a row without a
81 : signature is exactly what the auditor has to complain about */
82 8 : GNUNET_PQ_result_spec_allow_null (
83 : GNUNET_PQ_result_spec_auto_from_type ("master_sig",
84 : &master_sig),
85 : &no_master_sig),
86 8 : GNUNET_PQ_result_spec_string ("decider_name",
87 : &decider_name),
88 8 : GNUNET_PQ_result_spec_bool ("is_active",
89 : &is_active),
90 8 : GNUNET_PQ_result_spec_bool ("read_only",
91 : &read_only),
92 8 : GNUNET_PQ_result_spec_timestamp ("last_change",
93 : &last_change),
94 : GNUNET_PQ_result_spec_end
95 : };
96 : enum GNUNET_GenericReturnValue rval;
97 :
98 8 : if (GNUNET_OK !=
99 8 : GNUNET_PQ_extract_result (result,
100 : rs,
101 : i))
102 : {
103 0 : GNUNET_break (0);
104 0 : asc->qs = GNUNET_DB_STATUS_HARD_ERROR;
105 0 : return;
106 : }
107 8 : asc->qs = i + 1;
108 8 : rval = asc->cb (asc->cb_cls,
109 : rowid,
110 : &decider_pub,
111 : no_master_sig ? NULL : &master_sig,
112 : decider_name,
113 : is_active,
114 : read_only,
115 : last_change);
116 8 : GNUNET_PQ_cleanup_result (rs);
117 8 : if (GNUNET_OK != rval)
118 1 : break;
119 : }
120 : }
121 :
122 :
123 : enum GNUNET_DB_QueryStatus
124 6 : TALER_EXCHANGEDB_iterate_aml_staff_above_serial_id (
125 : struct TALER_EXCHANGEDB_PostgresContext *pg,
126 : uint64_t serial_id,
127 : TALER_EXCHANGEDB_AmlStaffCallback cb,
128 : TALER_EXCHANGEDB_AML_STAFF_RESULT_CLOSURE *cb_cls)
129 : {
130 6 : struct GNUNET_PQ_QueryParam params[] = {
131 6 : GNUNET_PQ_query_param_uint64 (&serial_id),
132 : GNUNET_PQ_query_param_end
133 : };
134 6 : struct AmlStaffContext asc = {
135 : .cb = cb,
136 : .cb_cls = cb_cls
137 : };
138 : enum GNUNET_DB_QueryStatus qs;
139 :
140 : /* Ordered by the serial ID and not by last_change: the caller is told
141 : about the changes in the order the exchange recorded them, which is
142 : what makes a status backdated after the fact stand out. */
143 6 : PREPARE (pg,
144 : "iterate_aml_staff_above_serial_id",
145 : "SELECT"
146 : " aml_staff_uuid"
147 : ",decider_pub"
148 : ",master_sig"
149 : ",decider_name"
150 : ",is_active"
151 : ",read_only"
152 : ",last_change"
153 : " FROM aml_staff"
154 : " WHERE aml_staff_uuid>=$1"
155 : " ORDER BY aml_staff_uuid ASC;");
156 6 : qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
157 : "iterate_aml_staff_above_serial_id",
158 : params,
159 : &aml_staff_cb,
160 : &asc);
161 6 : if (qs > 0)
162 4 : return asc.qs;
163 2 : GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs);
164 2 : return qs;
165 : }
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