pg_select_coin_deposits_above_serial_id.c (7041B)
1 /* 2 This file is part of TALER 3 Copyright (C) 2022-2023 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_coin_deposits_above_serial_id.c 18 * @brief Implementation of the select_coin_deposits_above_serial_id function for Postgres 19 * @author Christian Grothoff 20 */ 21 #include "taler/taler_pq_lib.h" 22 #include "taler/exchange-database/select_coin_deposits_above_serial_id.h" 23 #include "helper.h" 24 25 /** 26 * Closure for #deposit_serial_helper_cb(). 27 */ 28 struct CoinDepositSerialContext 29 { 30 31 /** 32 * Callback to call. 33 */ 34 TALER_EXCHANGEDB_DepositCallback 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 CoinDepositSerialContext` 58 * @param result the postgres result 59 * @param num_results the number of results in @a result 60 */ 61 static void 62 coin_deposit_serial_helper_cb (void *cls, 63 PGresult *result, 64 unsigned int num_results) 65 { 66 struct CoinDepositSerialContext *dsc = cls; 67 struct TALER_EXCHANGEDB_PostgresContext *pg = dsc->pg; 68 69 for (unsigned int i = 0; i<num_results; i++) 70 { 71 struct TALER_EXCHANGEDB_Deposit deposit; 72 struct GNUNET_TIME_Timestamp exchange_timestamp; 73 struct TALER_DenominationPublicKey denom_pub; 74 bool done; 75 uint64_t rowid; 76 struct GNUNET_PQ_ResultSpec rs[] = { 77 TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee", 78 &deposit.amount_with_fee), 79 GNUNET_PQ_result_spec_timestamp ("wallet_timestamp", 80 &deposit.timestamp), 81 GNUNET_PQ_result_spec_timestamp ("exchange_timestamp", 82 &exchange_timestamp), 83 GNUNET_PQ_result_spec_auto_from_type ("merchant_pub", 84 &deposit.merchant_pub), 85 TALER_PQ_result_spec_denom_pub ("denom_pub", 86 &denom_pub), 87 GNUNET_PQ_result_spec_auto_from_type ("coin_pub", 88 &deposit.coin.coin_pub), 89 GNUNET_PQ_result_spec_allow_null ( 90 GNUNET_PQ_result_spec_auto_from_type ("age_commitment_hash", 91 &deposit.coin.h_age_commitment), 92 &deposit.coin.no_age_commitment), 93 GNUNET_PQ_result_spec_allow_null ( 94 GNUNET_PQ_result_spec_auto_from_type ("wallet_data_hash", 95 &deposit.wallet_data_hash), 96 &deposit.no_wallet_data_hash), 97 GNUNET_PQ_result_spec_auto_from_type ("coin_sig", 98 &deposit.csig), 99 GNUNET_PQ_result_spec_timestamp ("refund_deadline", 100 &deposit.refund_deadline), 101 GNUNET_PQ_result_spec_timestamp ("wire_deadline", 102 &deposit.wire_deadline), 103 GNUNET_PQ_result_spec_auto_from_type ("h_contract_terms", 104 &deposit.h_contract_terms), 105 GNUNET_PQ_result_spec_auto_from_type ("wire_salt", 106 &deposit.wire_salt), 107 GNUNET_PQ_result_spec_string ("receiver_wire_account", 108 &deposit.receiver_wire_account.full_payto), 109 GNUNET_PQ_result_spec_bool ("done", 110 &done), 111 GNUNET_PQ_result_spec_uint64 ("coin_deposit_serial_id", 112 &rowid), 113 GNUNET_PQ_result_spec_end 114 }; 115 enum GNUNET_GenericReturnValue ret; 116 117 memset (&deposit, 118 0, 119 sizeof (deposit)); 120 if (GNUNET_OK != 121 GNUNET_PQ_extract_result (result, 122 rs, 123 i)) 124 { 125 GNUNET_break (0); 126 dsc->status = GNUNET_SYSERR; 127 return; 128 } 129 ret = dsc->cb (dsc->cb_cls, 130 rowid, 131 exchange_timestamp, 132 &deposit, 133 &denom_pub, 134 done); 135 GNUNET_PQ_cleanup_result (rs); 136 if (GNUNET_OK != ret) 137 break; 138 } 139 } 140 141 142 enum GNUNET_DB_QueryStatus 143 TALER_EXCHANGEDB_select_coin_deposits_above_serial_id ( 144 struct TALER_EXCHANGEDB_PostgresContext *pg, 145 uint64_t serial_id, 146 TALER_EXCHANGEDB_DepositCallback cb, 147 void *cb_cls) 148 { 149 struct GNUNET_PQ_QueryParam params[] = { 150 GNUNET_PQ_query_param_uint64 (&serial_id), 151 GNUNET_PQ_query_param_end 152 }; 153 struct CoinDepositSerialContext dsc = { 154 .cb = cb, 155 .cb_cls = cb_cls, 156 .pg = pg, 157 .status = GNUNET_OK 158 }; 159 enum GNUNET_DB_QueryStatus qs; 160 161 /* Fetch deposits with rowid '\geq' the given parameter */ 162 PREPARE (pg, 163 "audit_get_coin_deposits_incr", 164 "SELECT" 165 " cdep.amount_with_fee" 166 ",bdep.wallet_timestamp" 167 ",bdep.exchange_timestamp" 168 ",bdep.merchant_pub" 169 ",bdep.wallet_data_hash" 170 ",denom.denom_pub" 171 ",kc.coin_pub" 172 ",kc.age_commitment_hash" 173 ",cdep.coin_sig" 174 ",bdep.refund_deadline" 175 ",bdep.wire_deadline" 176 ",bdep.h_contract_terms" 177 ",bdep.wire_salt" 178 ",wt.payto_uri AS receiver_wire_account" 179 ",bdep.done" 180 ",cdep.coin_deposit_serial_id" 181 " FROM coin_deposits cdep" 182 " JOIN batch_deposits bdep" 183 " USING (batch_deposit_serial_id)" 184 " JOIN wire_targets wt" 185 " USING (wire_target_h_payto)" 186 " JOIN known_coins kc" 187 " USING (coin_pub)" 188 " JOIN denominations denom" 189 " USING (denominations_serial)" 190 " WHERE (coin_deposit_serial_id>=$1)" 191 " ORDER BY coin_deposit_serial_id ASC;"); 192 qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn, 193 "audit_get_coin_deposits_incr", 194 params, 195 &coin_deposit_serial_helper_cb, 196 &dsc); 197 if (GNUNET_OK != dsc.status) 198 return GNUNET_DB_STATUS_HARD_ERROR; 199 return qs; 200 }