pg_do_refresh.c (5516B)
1 /* 2 This file is part of TALER 3 Copyright (C) 2025 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_do_refresh.c 18 * @brief Implementation of the do_refresh function for Postgres 19 * @author Özgür Kesim 20 */ 21 #include "taler/platform.h" 22 #include "taler/taler_error_codes.h" 23 #include "taler/taler_dbevents.h" 24 #include "taler/taler_exchangedb_plugin.h" 25 #include "taler/taler_pq_lib.h" 26 #include "pg_do_refresh.h" 27 #include "pg_helper.h" 28 29 30 enum GNUNET_DB_QueryStatus 31 TEH_PG_do_refresh ( 32 void *cls, 33 struct TALER_EXCHANGEDB_Refresh_vDOLDPLUS *refresh, 34 const struct GNUNET_TIME_Timestamp *timestamp, 35 bool *found, 36 uint32_t *noreveal_index, 37 bool *zombie_required, 38 bool *nonce_reuse, 39 bool *balance_ok, 40 struct TALER_Amount *coin_balance) 41 { 42 struct PostgresClosure *pg = cls; 43 struct GNUNET_PQ_QueryParam params[] = { 44 GNUNET_PQ_query_param_auto_from_type (&refresh->rc), 45 GNUNET_PQ_query_param_timestamp (timestamp), 46 GNUNET_PQ_query_param_auto_from_type (&refresh->refresh_seed), /* 3 */ 47 (refresh->is_v27_refresh) 48 ? GNUNET_PQ_query_param_null () 49 : GNUNET_PQ_query_param_array_auto_from_type (refresh->num_coins, 50 refresh->transfer_pubs, 51 pg->conn), 52 GNUNET_PQ_query_param_auto_from_type (&refresh->planchets_h), 53 TALER_PQ_query_param_amount (pg->conn, /* 6 */ 54 &refresh->amount_with_fee), 55 (refresh->no_blinding_seed) 56 ? GNUNET_PQ_query_param_null () 57 : GNUNET_PQ_query_param_auto_from_type (&refresh->blinding_seed), 58 (0 < refresh->num_cs_r_values) 59 ? TALER_PQ_query_param_array_cs_r_pub (refresh->num_cs_r_values, 60 refresh->cs_r_values, 61 pg->conn) 62 : GNUNET_PQ_query_param_null (), 63 (0 < refresh->num_cs_r_values) 64 ? GNUNET_PQ_query_param_uint64 (&refresh->cs_r_choices) /* 9 */ 65 : GNUNET_PQ_query_param_null (), 66 GNUNET_PQ_query_param_auto_from_type (&refresh->selected_h), 67 TALER_PQ_query_param_array_blinded_denom_sig (refresh->num_coins, 68 refresh->denom_sigs, 69 pg->conn), 70 GNUNET_PQ_query_param_array_uint64 (refresh->num_coins, /* 12 */ 71 refresh->denom_serials, 72 pg->conn), 73 GNUNET_PQ_query_param_auto_from_type (&refresh->coin.coin_pub), 74 GNUNET_PQ_query_param_auto_from_type (&refresh->coin_sig), 75 GNUNET_PQ_query_param_uint32 (&refresh->noreveal_index), /* 15 */ 76 GNUNET_PQ_query_param_bool (*zombie_required), 77 GNUNET_PQ_query_param_end 78 }; 79 bool coin_found; 80 bool no_noreveal_index; 81 bool no_coin_balance; 82 struct GNUNET_PQ_ResultSpec rs[] = { 83 GNUNET_PQ_result_spec_bool ("coin_found", 84 &coin_found), 85 GNUNET_PQ_result_spec_bool ("balance_ok", 86 balance_ok), 87 GNUNET_PQ_result_spec_bool ("zombie_required", 88 zombie_required), 89 GNUNET_PQ_result_spec_bool ("nonce_reuse", 90 nonce_reuse), 91 GNUNET_PQ_result_spec_bool ("found", 92 found), 93 GNUNET_PQ_result_spec_allow_null ( 94 GNUNET_PQ_result_spec_uint32 ("noreveal_index", 95 noreveal_index), 96 &no_noreveal_index), 97 GNUNET_PQ_result_spec_allow_null ( 98 TALER_PQ_RESULT_SPEC_AMOUNT ("coin_balance", 99 coin_balance), 100 &no_coin_balance), 101 GNUNET_PQ_result_spec_end 102 }; 103 enum GNUNET_DB_QueryStatus qs; 104 105 PREPARE (pg, 106 "call_refresh", 107 "SELECT " 108 " out_coin_found AS coin_found" 109 ",out_balance_ok AS balance_ok" 110 ",out_zombie_bad AS zombie_required" 111 ",out_nonce_reuse AS nonce_reuse" 112 ",out_idempotent AS found" 113 ",out_noreveal_index AS noreveal_index" 114 ",out_coin_balance AS coin_balance" 115 " FROM exchange_do_refresh" 116 " ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14,$15,$16);"); 117 qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn, 118 "call_refresh", 119 params, 120 rs); 121 GNUNET_PQ_cleanup_query_params_closures (params); 122 if (0 > qs) 123 { 124 GNUNET_break (0); 125 return qs; 126 } 127 if (! coin_found) 128 { 129 return GNUNET_DB_STATUS_SUCCESS_NO_RESULTS; 130 } 131 if (*found && no_noreveal_index) 132 { 133 GNUNET_break (0); 134 return GNUNET_DB_STATUS_HARD_ERROR; 135 } 136 if (! balance_ok && no_coin_balance) 137 { 138 GNUNET_break (0); 139 return GNUNET_DB_STATUS_HARD_ERROR; 140 } 141 return qs; 142 }