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_lookup_transfer_by_deposit.c
18 : * @brief Implementation of the lookup_transfer_by_deposit function for Postgres
19 : * @author Christian Grothoff
20 : */
21 : #include "platform.h"
22 : #include "taler_error_codes.h"
23 : #include "taler_dbevents.h"
24 : #include "taler_pq_lib.h"
25 : #include "pg_lookup_transfer_by_deposit.h"
26 : #include "pg_helper.h"
27 :
28 :
29 : enum GNUNET_DB_QueryStatus
30 8 : TEH_PG_lookup_transfer_by_deposit (
31 : void *cls,
32 : const struct TALER_PrivateContractHashP *h_contract_terms,
33 : const struct TALER_MerchantWireHashP *h_wire,
34 : const struct TALER_CoinSpendPublicKeyP *coin_pub,
35 : const struct TALER_MerchantPublicKeyP *merchant_pub,
36 : bool *pending,
37 : struct TALER_WireTransferIdentifierRawP *wtid,
38 : struct GNUNET_TIME_Timestamp *exec_time,
39 : struct TALER_Amount *amount_with_fee,
40 : struct TALER_Amount *deposit_fee,
41 : struct TALER_EXCHANGEDB_KycStatus *kyc,
42 : union TALER_AccountPublicKeyP *account_pub)
43 : {
44 8 : struct PostgresClosure *pg = cls;
45 : enum GNUNET_DB_QueryStatus qs;
46 8 : struct GNUNET_PQ_QueryParam params[] = {
47 8 : GNUNET_PQ_query_param_auto_from_type (coin_pub),
48 8 : GNUNET_PQ_query_param_auto_from_type (h_contract_terms),
49 8 : GNUNET_PQ_query_param_auto_from_type (merchant_pub),
50 : GNUNET_PQ_query_param_end
51 : };
52 : struct TALER_FullPayto payto_uri;
53 : struct TALER_WireSaltP wire_salt;
54 8 : struct GNUNET_PQ_ResultSpec rs[] = {
55 8 : GNUNET_PQ_result_spec_auto_from_type ("wtid_raw",
56 : wtid),
57 8 : GNUNET_PQ_result_spec_auto_from_type ("wire_salt",
58 : &wire_salt),
59 8 : GNUNET_PQ_result_spec_string ("payto_uri",
60 : &payto_uri.full_payto),
61 8 : GNUNET_PQ_result_spec_timestamp ("execution_date",
62 : exec_time),
63 8 : TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee",
64 : amount_with_fee),
65 8 : TALER_PQ_RESULT_SPEC_AMOUNT ("fee_deposit",
66 : deposit_fee),
67 8 : GNUNET_PQ_result_spec_allow_null (
68 : GNUNET_PQ_result_spec_auto_from_type ("target_pub",
69 : account_pub),
70 : NULL),
71 : GNUNET_PQ_result_spec_end
72 : };
73 :
74 8 : memset (kyc,
75 : 0,
76 : sizeof (*kyc));
77 : /* check if the aggregation record exists and get it */
78 8 : PREPARE (pg,
79 : "lookup_deposit_wtid",
80 : "SELECT"
81 : " atr.wtid_raw"
82 : ",wire_out.execution_date"
83 : ",cdep.amount_with_fee"
84 : ",bdep.wire_salt"
85 : ",wt.payto_uri"
86 : ",kt.target_pub"
87 : ",denom.fee_deposit"
88 : " FROM coin_deposits cdep"
89 : " JOIN batch_deposits bdep"
90 : " USING (batch_deposit_serial_id)"
91 : " JOIN wire_targets wt"
92 : " USING (wire_target_h_payto)"
93 : /* kyc_targets might not match; then target_pub will be NULL */
94 : " LEFT JOIN kyc_targets kt"
95 : " USING (h_normalized_payto)"
96 : " JOIN aggregation_tracking atr"
97 : " ON (cdep.batch_deposit_serial_id = atr.batch_deposit_serial_id)"
98 : " JOIN known_coins kc"
99 : " ON (kc.coin_pub = cdep.coin_pub)"
100 : " JOIN denominations denom"
101 : " USING (denominations_serial)"
102 : " JOIN wire_out"
103 : " USING (wtid_raw)"
104 : " WHERE cdep.coin_pub=$1"
105 : " AND bdep.merchant_pub=$3"
106 : " AND bdep.h_contract_terms=$2");
107 : /* NOTE: above query might be more efficient if we computed the shard
108 : from the merchant_pub and included that in the query */
109 8 : qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
110 : "lookup_deposit_wtid",
111 : params,
112 : rs);
113 8 : if (0 > qs)
114 0 : return qs;
115 8 : if (GNUNET_DB_STATUS_SUCCESS_ONE_RESULT == qs)
116 : {
117 : struct TALER_MerchantWireHashP wh;
118 :
119 2 : TALER_merchant_wire_signature_hash (payto_uri,
120 : &wire_salt,
121 : &wh);
122 2 : if (0 ==
123 2 : GNUNET_memcmp (&wh,
124 : h_wire))
125 : {
126 2 : *pending = false;
127 2 : kyc->ok = true;
128 2 : GNUNET_PQ_cleanup_result (rs);
129 2 : return qs;
130 : }
131 0 : qs = GNUNET_DB_STATUS_SUCCESS_NO_RESULTS;
132 0 : GNUNET_PQ_cleanup_result (rs);
133 : }
134 6 : *pending = true;
135 6 : memset (wtid,
136 : 0,
137 : sizeof (*wtid));
138 6 : GNUNET_assert (GNUNET_DB_STATUS_SUCCESS_NO_RESULTS == qs);
139 6 : GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
140 : "lookup_deposit_wtid returned 0 matching rows\n");
141 : {
142 : /* Check if transaction exists in deposits, so that we just
143 : do not have a WTID yet. In that case, return without wtid
144 : (by setting 'pending' true). */
145 6 : struct GNUNET_PQ_ResultSpec rs2[] = {
146 6 : GNUNET_PQ_result_spec_auto_from_type ("wire_salt",
147 : &wire_salt),
148 6 : GNUNET_PQ_result_spec_string ("payto_uri",
149 : &payto_uri.full_payto),
150 6 : TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee",
151 : amount_with_fee),
152 6 : TALER_PQ_RESULT_SPEC_AMOUNT ("fee_deposit",
153 : deposit_fee),
154 6 : GNUNET_PQ_result_spec_timestamp ("wire_deadline",
155 : exec_time),
156 6 : GNUNET_PQ_result_spec_allow_null (
157 : GNUNET_PQ_result_spec_uint64 ("legitimization_requirement_serial_id",
158 : &kyc->requirement_row),
159 : NULL),
160 6 : GNUNET_PQ_result_spec_allow_null (
161 : GNUNET_PQ_result_spec_auto_from_type ("target_pub",
162 : account_pub),
163 : NULL),
164 : GNUNET_PQ_result_spec_end
165 : };
166 :
167 6 : PREPARE (pg,
168 : "get_deposit_without_wtid",
169 : "SELECT"
170 : " bdep.wire_salt"
171 : ",wt.payto_uri"
172 : ",cdep.amount_with_fee"
173 : ",denom.fee_deposit"
174 : ",bdep.wire_deadline"
175 : ",agt.legitimization_requirement_serial_id"
176 : ",kt.target_pub"
177 : " FROM coin_deposits cdep"
178 : " JOIN batch_deposits bdep"
179 : " USING (batch_deposit_serial_id)"
180 : " JOIN wire_targets wt"
181 : " USING (wire_target_h_payto)"
182 : /* kyc_targets might not match; then target_pub will be NULL */
183 : " LEFT JOIN kyc_targets kt"
184 : " USING (h_normalized_payto)"
185 : " JOIN known_coins kc"
186 : " ON (kc.coin_pub = cdep.coin_pub)"
187 : " JOIN denominations denom"
188 : " USING (denominations_serial)"
189 : " LEFT JOIN aggregation_transient agt "
190 : " ON ( (bdep.wire_target_h_payto = agt.wire_target_h_payto) AND"
191 : " (bdep.merchant_pub = agt.merchant_pub) )"
192 : " WHERE cdep.coin_pub=$1"
193 : " AND bdep.merchant_pub=$3"
194 : " AND bdep.h_contract_terms=$2"
195 : " LIMIT 1;");
196 : /* NOTE: above query might be more efficient if we computed the shard
197 : from the merchant_pub and included that in the query */
198 6 : qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
199 : "get_deposit_without_wtid",
200 : params,
201 : rs2);
202 6 : if (0 > qs)
203 0 : return qs;
204 6 : if (GNUNET_DB_STATUS_SUCCESS_ONE_RESULT == qs)
205 : {
206 : struct TALER_MerchantWireHashP wh;
207 :
208 4 : TALER_merchant_wire_signature_hash (payto_uri,
209 : &wire_salt,
210 : &wh);
211 4 : if (0 !=
212 4 : GNUNET_memcmp (&wh,
213 : h_wire))
214 : {
215 0 : GNUNET_PQ_cleanup_result (rs2);
216 0 : return GNUNET_DB_STATUS_SUCCESS_NO_RESULTS;
217 : }
218 4 : GNUNET_PQ_cleanup_result (rs2);
219 4 : if (0 == kyc->requirement_row)
220 3 : kyc->ok = true; /* technically: unknown */
221 : }
222 6 : return qs;
223 : }
224 : }
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