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 pg_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/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_purse_deposits_above_serial_id.h"
26 : #include "pg_helper.h"
27 :
28 : /**
29 : * Closure for #purse_deposit_serial_helper_cb().
30 : */
31 : struct PurseDepositSerialContext
32 : {
33 :
34 : /**
35 : * Callback to call.
36 : */
37 : TALER_EXCHANGEDB_PurseDepositCallback 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 : enum GNUNET_GenericReturnValue 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 DepositSerialContext`
61 : * @param result the postgres result
62 : * @param num_results the number of results in @a result
63 : */
64 : static void
65 148 : purse_deposit_serial_helper_cb (void *cls,
66 : PGresult *result,
67 : unsigned int num_results)
68 : {
69 148 : struct PurseDepositSerialContext *dsc = cls;
70 148 : struct PostgresClosure *pg = dsc->pg;
71 :
72 148 : for (unsigned int i = 0; i<num_results; i++)
73 : {
74 0 : struct TALER_EXCHANGEDB_PurseDeposit deposit = {
75 : .exchange_base_url = NULL
76 : };
77 : struct TALER_DenominationPublicKey denom_pub;
78 : uint64_t rowid;
79 : uint32_t flags32;
80 : struct TALER_ReservePublicKeyP reserve_pub;
81 0 : bool not_merged = false;
82 : struct TALER_Amount purse_balance;
83 : struct TALER_Amount purse_total;
84 0 : struct GNUNET_PQ_ResultSpec rs[] = {
85 0 : TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee",
86 : &deposit.amount),
87 0 : TALER_PQ_RESULT_SPEC_AMOUNT ("balance",
88 : &purse_balance),
89 0 : TALER_PQ_RESULT_SPEC_AMOUNT ("total",
90 : &purse_total),
91 0 : TALER_PQ_RESULT_SPEC_AMOUNT ("fee_deposit",
92 : &deposit.deposit_fee),
93 0 : GNUNET_PQ_result_spec_allow_null (
94 : GNUNET_PQ_result_spec_string ("partner_base_url",
95 : &deposit.exchange_base_url),
96 : NULL),
97 0 : GNUNET_PQ_result_spec_allow_null (
98 : GNUNET_PQ_result_spec_auto_from_type ("reserve_pub",
99 : &reserve_pub),
100 : ¬_merged),
101 0 : TALER_PQ_result_spec_denom_pub ("denom_pub",
102 : &denom_pub),
103 0 : GNUNET_PQ_result_spec_auto_from_type ("purse_pub",
104 : &deposit.purse_pub),
105 0 : GNUNET_PQ_result_spec_auto_from_type ("coin_sig",
106 : &deposit.coin_sig),
107 0 : GNUNET_PQ_result_spec_uint32 ("flags",
108 : &flags32),
109 0 : GNUNET_PQ_result_spec_auto_from_type ("coin_pub",
110 : &deposit.coin_pub),
111 0 : GNUNET_PQ_result_spec_allow_null (
112 : GNUNET_PQ_result_spec_auto_from_type ("age_commitment_hash",
113 : &deposit.h_age_commitment),
114 : &deposit.no_age_commitment),
115 0 : GNUNET_PQ_result_spec_uint64 ("purse_deposit_serial_id",
116 : &rowid),
117 : GNUNET_PQ_result_spec_end
118 : };
119 : enum GNUNET_GenericReturnValue ret;
120 :
121 0 : memset (&deposit,
122 : 0,
123 : sizeof (deposit));
124 0 : if (GNUNET_OK !=
125 0 : GNUNET_PQ_extract_result (result,
126 : rs,
127 : i))
128 : {
129 0 : GNUNET_break (0);
130 0 : dsc->status = GNUNET_SYSERR;
131 0 : return;
132 : }
133 0 : ret = dsc->cb (dsc->cb_cls,
134 : rowid,
135 : &deposit,
136 : not_merged ? NULL : &reserve_pub,
137 : (enum TALER_WalletAccountMergeFlags) flags32,
138 : &purse_balance,
139 : &purse_total,
140 : &denom_pub);
141 0 : GNUNET_PQ_cleanup_result (rs);
142 0 : if (GNUNET_OK != ret)
143 0 : break;
144 : }
145 : }
146 :
147 :
148 : enum GNUNET_DB_QueryStatus
149 148 : TEH_PG_select_purse_deposits_above_serial_id (
150 : void *cls,
151 : uint64_t serial_id,
152 : TALER_EXCHANGEDB_PurseDepositCallback cb,
153 : void *cb_cls)
154 : {
155 148 : struct PostgresClosure *pg = cls;
156 148 : struct GNUNET_PQ_QueryParam params[] = {
157 148 : GNUNET_PQ_query_param_uint64 (&serial_id),
158 : GNUNET_PQ_query_param_end
159 : };
160 148 : struct PurseDepositSerialContext dsc = {
161 : .cb = cb,
162 : .cb_cls = cb_cls,
163 : .pg = pg,
164 : .status = GNUNET_OK
165 : };
166 : enum GNUNET_DB_QueryStatus qs;
167 :
168 148 : PREPARE (pg,
169 : "audit_get_purse_deposits_incr",
170 : "SELECT"
171 : " pd.amount_with_fee"
172 : ",pr.amount_with_fee AS total"
173 : ",pr.balance"
174 : ",pr.flags"
175 : ",pd.purse_pub"
176 : ",pd.coin_sig"
177 : ",partner_base_url"
178 : ",denom.denom_pub"
179 : ",denom.fee_deposit"
180 : ",pm.reserve_pub"
181 : ",kc.coin_pub"
182 : ",kc.age_commitment_hash"
183 : ",pd.purse_deposit_serial_id"
184 : " FROM purse_deposits pd"
185 : " LEFT JOIN partners USING (partner_serial_id)"
186 : " LEFT JOIN purse_merges pm USING (purse_pub)"
187 : " JOIN purse_requests pr USING (purse_pub)"
188 : " JOIN known_coins kc USING (coin_pub)"
189 : " JOIN denominations denom USING (denominations_serial)"
190 : " WHERE ("
191 : " (purse_deposit_serial_id>=$1)"
192 : " )"
193 : " ORDER BY purse_deposit_serial_id ASC;");
194 148 : qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
195 : "audit_get_purse_deposits_incr",
196 : params,
197 : &purse_deposit_serial_helper_cb,
198 : &dsc);
199 148 : if (GNUNET_OK != dsc.status)
200 0 : return GNUNET_DB_STATUS_HARD_ERROR;
201 148 : return qs;
202 : }
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