Line data Source code
1 : /*
2 : This file is part of TALER
3 : Copyright (C) 2025 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/iterate_kycauth_in_above_serial_id_by_account.c
18 : * @brief Implementation of the iterate_kycauth_in_above_serial_id_by_account function for Postgres
19 : * @author Christian Grothoff
20 : */
21 : #include "taler/taler_pq_lib.h"
22 : #include \
23 : "exchange-database/iterate_kycauth_in_above_serial_id_by_account.h"
24 : #include "helper.h"
25 :
26 :
27 : /**
28 : * Closure for #kycauth_in_serial_helper_cb().
29 : */
30 : struct KycauthInSerialContext
31 : {
32 :
33 : /**
34 : * Callback to call.
35 : */
36 : TALER_EXCHANGEDB_KycauthInCallback cb;
37 :
38 : /**
39 : * Closure for @e cb.
40 : */
41 : void *cb_cls;
42 :
43 : /**
44 : * Plugin context.
45 : */
46 : struct TALER_EXCHANGEDB_PostgresContext *pg;
47 :
48 : /**
49 : * Status code, set to #GNUNET_SYSERR on hard errors.
50 : */
51 : enum GNUNET_GenericReturnValue status;
52 : };
53 :
54 :
55 : /**
56 : * Helper function to be called with the results of a SELECT statement
57 : * that has returned @a num_results results.
58 : *
59 : * @param cls closure of type `struct KycauthInSerialContext`
60 : * @param result the postgres result
61 : * @param num_results the number of results in @a result
62 : */
63 : static void
64 7 : kycauth_in_serial_helper_cb (void *cls,
65 : PGresult *result,
66 : unsigned int num_results)
67 : {
68 7 : struct KycauthInSerialContext *kisc = cls;
69 7 : struct TALER_EXCHANGEDB_PostgresContext *pg = kisc->pg;
70 :
71 11 : for (unsigned int i = 0; i<num_results; i++)
72 : {
73 : union TALER_AccountPublicKeyP account_pub;
74 : struct TALER_Amount credit;
75 5 : struct TALER_FullPayto sender_account_details = { NULL };
76 : struct GNUNET_TIME_Timestamp execution_date;
77 : uint64_t rowid;
78 : uint64_t wire_reference;
79 : bool no_sender_account_details;
80 5 : struct GNUNET_PQ_ResultSpec rs[] = {
81 5 : GNUNET_PQ_result_spec_auto_from_type ("account_pub",
82 : &account_pub),
83 5 : GNUNET_PQ_result_spec_uint64 ("wire_reference",
84 : &wire_reference),
85 5 : TALER_PQ_RESULT_SPEC_AMOUNT ("credit",
86 : &credit),
87 5 : GNUNET_PQ_result_spec_timestamp ("execution_date",
88 : &execution_date),
89 : /* the exchange only creates the wire_targets row the first time it
90 : sees the account, so we must not drop a transfer just because
91 : that row is missing */
92 5 : GNUNET_PQ_result_spec_allow_null (
93 : GNUNET_PQ_result_spec_string ("sender_account_details",
94 : &sender_account_details.full_payto),
95 : &no_sender_account_details),
96 5 : GNUNET_PQ_result_spec_uint64 ("kycauth_in_serial_id",
97 : &rowid),
98 : GNUNET_PQ_result_spec_end
99 : };
100 : enum GNUNET_GenericReturnValue ret;
101 :
102 5 : if (GNUNET_OK !=
103 5 : GNUNET_PQ_extract_result (result,
104 : rs,
105 : i))
106 : {
107 0 : GNUNET_break (0);
108 0 : kisc->status = GNUNET_SYSERR;
109 0 : return;
110 : }
111 5 : ret = kisc->cb (kisc->cb_cls,
112 : rowid,
113 : &account_pub,
114 : &credit,
115 : sender_account_details,
116 : wire_reference,
117 : execution_date);
118 5 : GNUNET_PQ_cleanup_result (rs);
119 5 : if (GNUNET_OK != ret)
120 1 : break;
121 : }
122 : }
123 :
124 :
125 : enum GNUNET_DB_QueryStatus
126 7 : TALER_EXCHANGEDB_iterate_kycauth_in_above_serial_id_by_account (
127 : struct TALER_EXCHANGEDB_PostgresContext *pg,
128 : const char *account_name,
129 : uint64_t serial_id,
130 : TALER_EXCHANGEDB_KycauthInCallback cb,
131 : void *cb_cls)
132 : {
133 7 : struct GNUNET_PQ_QueryParam params[] = {
134 7 : GNUNET_PQ_query_param_uint64 (&serial_id),
135 7 : GNUNET_PQ_query_param_string (account_name),
136 : GNUNET_PQ_query_param_end
137 : };
138 7 : struct KycauthInSerialContext kisc = {
139 : .cb = cb,
140 : .cb_cls = cb_cls,
141 : .pg = pg,
142 : .status = GNUNET_OK
143 : };
144 : enum GNUNET_DB_QueryStatus qs;
145 :
146 7 : PREPARE (pg,
147 : "iterate_kycauth_in_above_serial_id_by_account",
148 : "SELECT"
149 : " account_pub"
150 : ",wire_reference"
151 : ",credit"
152 : ",execution_date"
153 : ",wt.payto_uri AS sender_account_details"
154 : ",kycauth_in_serial_id"
155 : " FROM kycauths_in"
156 : " LEFT JOIN wire_targets wt"
157 : " ON (wire_source_h_payto = wire_target_h_payto)"
158 : " WHERE kycauth_in_serial_id>=$1"
159 : " AND exchange_account_section=$2"
160 : " ORDER BY kycauth_in_serial_id ASC;");
161 7 : qs = GNUNET_PQ_eval_prepared_multi_select (
162 : pg->conn,
163 : "iterate_kycauth_in_above_serial_id_by_account",
164 : params,
165 : &kycauth_in_serial_helper_cb,
166 : &kisc);
167 7 : if (GNUNET_OK != kisc.status)
168 0 : return GNUNET_DB_STATUS_HARD_ERROR;
169 7 : return qs;
170 : }
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