Line data Source code
1 : /*
2 : This file is part of TALER
3 : Copyright (C) 2022 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 select_purse_deposits_above_serial_id.c
18 : * @brief Implementation of the select_purse_deposits_above_serial_id function for Postgres
19 : * @author Christian Grothoff
20 : */
21 : #include "taler/taler_pq_lib.h"
22 : #include "exchange-database/select_purse_deposits_above_serial_id.h"
23 : #include "helper.h"
24 :
25 : /**
26 : * Closure for #purse_deposit_serial_helper_cb().
27 : */
28 : struct PurseDepositSerialContext
29 : {
30 :
31 : /**
32 : * Callback to call.
33 : */
34 : TALER_EXCHANGEDB_PurseDepositCallback cb;
35 :
36 : /**
37 : * Closure for @e cb.
38 : */
39 : void *cb_cls;
40 :
41 : /**
42 : * Plugin context.
43 : */
44 : struct TALER_EXCHANGEDB_PostgresContext *pg;
45 :
46 : /**
47 : * Status code, set to #GNUNET_SYSERR on hard errors.
48 : */
49 : enum GNUNET_GenericReturnValue status;
50 : };
51 :
52 :
53 : /**
54 : * Helper function 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 DepositSerialContext`
58 : * @param result the postgres result
59 : * @param num_results the number of results in @a result
60 : */
61 : static void
62 8 : purse_deposit_serial_helper_cb (void *cls,
63 : PGresult *result,
64 : unsigned int num_results)
65 : {
66 8 : struct PurseDepositSerialContext *dsc = cls;
67 8 : struct TALER_EXCHANGEDB_PostgresContext *pg = dsc->pg;
68 :
69 8 : for (unsigned int i = 0; i<num_results; i++)
70 : {
71 0 : struct TALER_EXCHANGEDB_PurseDeposit deposit = {
72 : .exchange_base_url = NULL
73 : };
74 : struct TALER_DenominationPublicKey denom_pub;
75 : uint64_t rowid;
76 : uint32_t flags32;
77 : struct TALER_ReservePublicKeyP reserve_pub;
78 0 : bool not_merged = false;
79 : struct TALER_Amount purse_balance;
80 : struct TALER_Amount purse_total;
81 0 : struct GNUNET_PQ_ResultSpec rs[] = {
82 0 : TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee",
83 : &deposit.amount),
84 0 : TALER_PQ_RESULT_SPEC_AMOUNT ("balance",
85 : &purse_balance),
86 0 : TALER_PQ_RESULT_SPEC_AMOUNT ("total",
87 : &purse_total),
88 0 : TALER_PQ_RESULT_SPEC_AMOUNT ("fee_deposit",
89 : &deposit.deposit_fee),
90 0 : GNUNET_PQ_result_spec_allow_null (
91 : GNUNET_PQ_result_spec_string ("partner_base_url",
92 : &deposit.exchange_base_url),
93 : NULL),
94 0 : GNUNET_PQ_result_spec_allow_null (
95 : GNUNET_PQ_result_spec_auto_from_type ("reserve_pub",
96 : &reserve_pub),
97 : ¬_merged),
98 0 : TALER_PQ_result_spec_denom_pub ("denom_pub",
99 : &denom_pub),
100 0 : GNUNET_PQ_result_spec_auto_from_type ("purse_pub",
101 : &deposit.purse_pub),
102 0 : GNUNET_PQ_result_spec_auto_from_type ("coin_sig",
103 : &deposit.coin_sig),
104 0 : GNUNET_PQ_result_spec_uint32 ("flags",
105 : &flags32),
106 0 : GNUNET_PQ_result_spec_auto_from_type ("coin_pub",
107 : &deposit.coin_pub),
108 0 : GNUNET_PQ_result_spec_allow_null (
109 : GNUNET_PQ_result_spec_auto_from_type ("age_commitment_hash",
110 : &deposit.h_age_commitment),
111 : &deposit.no_age_commitment),
112 0 : GNUNET_PQ_result_spec_uint64 ("purse_deposit_serial_id",
113 : &rowid),
114 : GNUNET_PQ_result_spec_end
115 : };
116 : enum GNUNET_GenericReturnValue ret;
117 :
118 0 : memset (&deposit,
119 : 0,
120 : sizeof (deposit));
121 0 : if (GNUNET_OK !=
122 0 : GNUNET_PQ_extract_result (result,
123 : rs,
124 : i))
125 : {
126 0 : GNUNET_break (0);
127 0 : dsc->status = GNUNET_SYSERR;
128 0 : return;
129 : }
130 0 : ret = dsc->cb (dsc->cb_cls,
131 : rowid,
132 : &deposit,
133 : not_merged ? NULL : &reserve_pub,
134 : (enum TALER_WalletAccountMergeFlags) flags32,
135 : &purse_balance,
136 : &purse_total,
137 : &denom_pub);
138 0 : GNUNET_PQ_cleanup_result (rs);
139 0 : if (GNUNET_OK != ret)
140 0 : break;
141 : }
142 : }
143 :
144 :
145 : enum GNUNET_DB_QueryStatus
146 8 : TALER_TALER_EXCHANGEDB_select_purse_deposits_above_serial_id (
147 : struct TALER_EXCHANGEDB_PostgresContext *pg,
148 : uint64_t serial_id,
149 : TALER_EXCHANGEDB_PurseDepositCallback cb,
150 : void *cb_cls)
151 : {
152 8 : struct GNUNET_PQ_QueryParam params[] = {
153 8 : GNUNET_PQ_query_param_uint64 (&serial_id),
154 : GNUNET_PQ_query_param_end
155 : };
156 8 : struct PurseDepositSerialContext dsc = {
157 : .cb = cb,
158 : .cb_cls = cb_cls,
159 : .pg = pg,
160 : .status = GNUNET_OK
161 : };
162 : enum GNUNET_DB_QueryStatus qs;
163 :
164 8 : PREPARE (pg,
165 : "audit_get_purse_deposits_incr",
166 : "SELECT"
167 : " pd.amount_with_fee"
168 : ",pr.amount_with_fee AS total"
169 : ",pr.balance"
170 : ",pr.flags"
171 : ",pd.purse_pub"
172 : ",pd.coin_sig"
173 : ",partner_base_url"
174 : ",denom.denom_pub"
175 : ",denom.fee_deposit"
176 : ",pm.reserve_pub"
177 : ",kc.coin_pub"
178 : ",kc.age_commitment_hash"
179 : ",pd.purse_deposit_serial_id"
180 : " FROM purse_deposits pd"
181 : " LEFT JOIN partners USING (partner_serial_id)"
182 : " LEFT JOIN purse_merges pm USING (purse_pub)"
183 : " JOIN purse_requests pr USING (purse_pub)"
184 : " JOIN known_coins kc USING (coin_pub)"
185 : " JOIN denominations denom USING (denominations_serial)"
186 : " WHERE ("
187 : " (purse_deposit_serial_id>=$1)"
188 : " )"
189 : " ORDER BY purse_deposit_serial_id ASC;");
190 8 : qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
191 : "audit_get_purse_deposits_incr",
192 : params,
193 : &purse_deposit_serial_helper_cb,
194 : &dsc);
195 8 : if (GNUNET_OK != dsc.status)
196 0 : return GNUNET_DB_STATUS_HARD_ERROR;
197 8 : return qs;
198 : }
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