Line data Source code
1 : /*
2 : This file is part of TALER
3 : Copyright (C) 2022, 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 : * @file exchangedb/pg_select_wire_out_above_serial_id_by_account.c
18 : * @brief Implementation of the select_wire_out_above_serial_id_by_account function for Postgres
19 : * @author Christian Grothoff
20 : */
21 : #include "taler/platform.h"
22 : #include "taler/taler_error_codes.h"
23 : #include "taler/taler_dbevents.h"
24 : #include "taler/taler_pq_lib.h"
25 : #include "pg_select_wire_out_above_serial_id_by_account.h"
26 : #include "pg_helper.h"
27 :
28 : /**
29 : * Closure for #wire_out_serial_helper_cb().
30 : */
31 : struct WireOutSerialContext
32 : {
33 :
34 : /**
35 : * Callback to call.
36 : */
37 : TALER_EXCHANGEDB_WireTransferOutCallback cb;
38 :
39 : /**
40 : * Closure for @e cb.
41 : */
42 : void *cb_cls;
43 :
44 : /**
45 : * Plugin context.
46 : */
47 : struct PostgresClosure *pg;
48 :
49 : /**
50 : * Status code, set to #GNUNET_SYSERR on hard errors.
51 : */
52 : int status;
53 : };
54 :
55 :
56 : /**
57 : * Helper function to be called with the results of a SELECT statement
58 : * that has returned @a num_results results.
59 : *
60 : * @param cls closure of type `struct WireOutSerialContext`
61 : * @param result the postgres result
62 : * @param num_results the number of results in @a result
63 : */
64 : static void
65 68 : wire_out_serial_helper_cb (void *cls,
66 : PGresult *result,
67 : unsigned int num_results)
68 : {
69 68 : struct WireOutSerialContext *wosc = cls;
70 68 : struct PostgresClosure *pg = wosc->pg;
71 :
72 82 : for (unsigned int i = 0; i<num_results; i++)
73 : {
74 : uint64_t rowid;
75 : struct GNUNET_TIME_Timestamp date;
76 : struct TALER_WireTransferIdentifierRawP wtid;
77 : struct TALER_FullPayto payto_uri;
78 : struct TALER_Amount amount;
79 14 : struct GNUNET_PQ_ResultSpec rs[] = {
80 14 : GNUNET_PQ_result_spec_uint64 ("wireout_uuid",
81 : &rowid),
82 14 : GNUNET_PQ_result_spec_timestamp ("execution_date",
83 : &date),
84 14 : GNUNET_PQ_result_spec_auto_from_type ("wtid_raw",
85 : &wtid),
86 14 : GNUNET_PQ_result_spec_string ("payto_uri",
87 : &payto_uri.full_payto),
88 14 : TALER_PQ_RESULT_SPEC_AMOUNT ("amount",
89 : &amount),
90 : GNUNET_PQ_result_spec_end
91 : };
92 : int ret;
93 :
94 14 : if (GNUNET_OK !=
95 14 : GNUNET_PQ_extract_result (result,
96 : rs,
97 : i))
98 : {
99 0 : GNUNET_break (0);
100 0 : wosc->status = GNUNET_SYSERR;
101 0 : return;
102 : }
103 14 : ret = wosc->cb (wosc->cb_cls,
104 : rowid,
105 : date,
106 : &wtid,
107 : payto_uri,
108 : &amount);
109 14 : GNUNET_PQ_cleanup_result (rs);
110 14 : if (GNUNET_OK != ret)
111 0 : break;
112 : }
113 : }
114 :
115 :
116 : enum GNUNET_DB_QueryStatus
117 68 : TEH_PG_select_wire_out_above_serial_id_by_account (
118 : void *cls,
119 : const char *account_name,
120 : uint64_t serial_id,
121 : TALER_EXCHANGEDB_WireTransferOutCallback cb,
122 : void *cb_cls)
123 : {
124 68 : struct PostgresClosure *pg = cls;
125 68 : struct GNUNET_PQ_QueryParam params[] = {
126 68 : GNUNET_PQ_query_param_uint64 (&serial_id),
127 68 : GNUNET_PQ_query_param_string (account_name),
128 : GNUNET_PQ_query_param_end
129 : };
130 68 : struct WireOutSerialContext wosc = {
131 : .cb = cb,
132 : .cb_cls = cb_cls,
133 : .pg = pg,
134 : .status = GNUNET_OK
135 : };
136 : enum GNUNET_DB_QueryStatus qs;
137 :
138 68 : PREPARE (pg,
139 : "select_wire_out_above_serial_id_by_account",
140 : "SELECT"
141 : " wo.wireout_uuid"
142 : ",wo.execution_date"
143 : ",wo.wtid_raw"
144 : ",wt.payto_uri"
145 : ",wo.amount"
146 : " FROM wire_out wo"
147 : " JOIN wire_targets wt"
148 : " USING (wire_target_h_payto)"
149 : " WHERE wo.wireout_uuid>=$1 "
150 : " AND wo.exchange_account_section=$2"
151 : " ORDER BY wo.wireout_uuid ASC;");
152 68 : qs = GNUNET_PQ_eval_prepared_multi_select (
153 : pg->conn,
154 : "select_wire_out_above_serial_id_by_account",
155 : params,
156 : &wire_out_serial_helper_cb,
157 : &wosc);
158 68 : if (GNUNET_OK != wosc.status)
159 0 : return GNUNET_DB_STATUS_HARD_ERROR;
160 68 : return qs;
161 : }
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