iterate_wire_transfers.c (6392B)
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/iterate_wire_transfers.c 18 * @brief Implementation of the iterate_wire_transfers function for Postgres 19 * @author Christian Grothoff 20 */ 21 #include "taler/taler_pq_lib.h" 22 #include "exchange-database/iterate_wire_transfers.h" 23 #include "helper.h" 24 25 /** 26 * Closure for #handle_wt_result. 27 */ 28 struct WireTransferResultContext 29 { 30 /** 31 * Function to call on each result. 32 */ 33 TALER_EXCHANGEDB_AggregationDataCallback cb; 34 35 /** 36 * Closure for @e cb. 37 */ 38 void *cb_cls; 39 40 /** 41 * Plugin context. 42 */ 43 struct TALER_EXCHANGEDB_PostgresContext *pg; 44 45 /** 46 * Set to #GNUNET_SYSERR on serious errors. 47 */ 48 enum GNUNET_GenericReturnValue status; 49 }; 50 51 52 /** 53 * Function to be called with the results of a SELECT statement 54 * that has returned @a num_results results. Helper function 55 * for #TALER_EXCHANGEDB_iterate_wire_transfers(). 56 * 57 * @param cls closure of type `struct WireTransferResultContext *` 58 * @param result the postgres result 59 * @param num_results the number of results in @a result 60 */ 61 static void 62 handle_wt_result (void *cls, 63 PGresult *result, 64 unsigned int num_results) 65 { 66 struct WireTransferResultContext *ctx = cls; 67 struct TALER_EXCHANGEDB_PostgresContext *pg = ctx->pg; 68 69 for (unsigned int i = 0; i<num_results; i++) 70 { 71 uint64_t rowid; 72 struct TALER_PrivateContractHashP h_contract_terms; 73 struct TALER_CoinSpendPublicKeyP coin_pub; 74 struct TALER_FullPaytoHashP h_payto; 75 struct TALER_MerchantPublicKeyP merchant_pub; 76 struct GNUNET_TIME_Timestamp exec_time; 77 struct TALER_Amount amount_with_fee; 78 struct TALER_Amount deposit_fee; 79 struct TALER_DenominationPublicKey denom_pub; 80 struct TALER_FullPayto payto_uri; 81 struct TALER_FullPayto exchange_payto_uri = { 82 .full_payto = NULL 83 }; 84 struct GNUNET_PQ_ResultSpec rs[] = { 85 GNUNET_PQ_result_spec_uint64 ("aggregation_serial_id", 86 &rowid), 87 GNUNET_PQ_result_spec_auto_from_type ("h_contract_terms", 88 &h_contract_terms), 89 GNUNET_PQ_result_spec_string ("payto_uri", 90 &payto_uri.full_payto), 91 GNUNET_PQ_result_spec_auto_from_type ("wire_target_h_payto", 92 &h_payto), 93 GNUNET_PQ_result_spec_allow_null ( 94 GNUNET_PQ_result_spec_string ("exchange_payto_uri", 95 &exchange_payto_uri.full_payto), 96 NULL), 97 TALER_PQ_result_spec_denom_pub ("denom_pub", 98 &denom_pub), 99 GNUNET_PQ_result_spec_auto_from_type ("coin_pub", 100 &coin_pub), 101 GNUNET_PQ_result_spec_auto_from_type ("merchant_pub", 102 &merchant_pub), 103 GNUNET_PQ_result_spec_timestamp ("execution_date", 104 &exec_time), 105 TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee", 106 &amount_with_fee), 107 TALER_PQ_RESULT_SPEC_AMOUNT ("fee_deposit", 108 &deposit_fee), 109 GNUNET_PQ_result_spec_end 110 }; 111 112 if (GNUNET_OK != 113 GNUNET_PQ_extract_result (result, 114 rs, 115 i)) 116 { 117 GNUNET_break (0); 118 ctx->status = GNUNET_SYSERR; 119 return; 120 } 121 ctx->cb (ctx->cb_cls, 122 rowid, 123 &merchant_pub, 124 payto_uri, 125 &h_payto, 126 exchange_payto_uri, 127 exec_time, 128 &h_contract_terms, 129 &denom_pub, 130 &coin_pub, 131 &amount_with_fee, 132 &deposit_fee); 133 GNUNET_PQ_cleanup_result (rs); 134 } 135 } 136 137 138 enum GNUNET_DB_QueryStatus 139 TALER_EXCHANGEDB_iterate_wire_transfers ( 140 struct TALER_EXCHANGEDB_PostgresContext *pg, 141 const struct TALER_WireTransferIdentifierRawP *wtid, 142 TALER_EXCHANGEDB_AggregationDataCallback cb, 143 void *cb_cls) 144 { 145 struct GNUNET_PQ_QueryParam params[] = { 146 GNUNET_PQ_query_param_auto_from_type (wtid), 147 GNUNET_PQ_query_param_end 148 }; 149 struct WireTransferResultContext ctx = { 150 .cb = cb, 151 .cb_cls = cb_cls, 152 .pg = pg, 153 .status = GNUNET_OK 154 }; 155 enum GNUNET_DB_QueryStatus qs; 156 157 PREPARE (pg, 158 "iterate_wire_transfers", 159 "SELECT" 160 " aggregation_serial_id" 161 ",bdep.h_contract_terms" 162 ",payto_uri" 163 ",wt.wire_target_h_payto" 164 ",kc.coin_pub" 165 ",bdep.merchant_pub" 166 ",wo.execution_date" 167 ",cdep.amount_with_fee" 168 ",denom.fee_deposit" 169 ",denom.denom_pub" 170 ",wo.exchange_payto_uri" 171 " FROM aggregation_tracking" 172 " JOIN batch_deposits bdep" 173 " USING (batch_deposit_serial_id)" 174 " JOIN coin_deposits cdep" 175 " USING (batch_deposit_serial_id)" 176 " JOIN wire_targets wt" 177 " USING (wire_target_h_payto)" 178 " JOIN known_coins kc" 179 " USING (coin_pub)" 180 " JOIN denominations denom" 181 " USING (denominations_serial)" 182 " JOIN wire_out wo" 183 " USING (wtid_raw)" 184 " WHERE wtid_raw=$1;"); 185 qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn, 186 "iterate_wire_transfers", 187 params, 188 &handle_wt_result, 189 &ctx); 190 if (GNUNET_OK != ctx.status) 191 return GNUNET_DB_STATUS_HARD_ERROR; 192 return qs; 193 }