pg_do_refresh.c (5177B)
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_v27 *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), 47 GNUNET_PQ_query_param_auto_from_type (&refresh->planchets_h), 48 TALER_PQ_query_param_amount (pg->conn, 49 &refresh->amount_with_fee), 50 (refresh->no_blinding_seed) 51 ? GNUNET_PQ_query_param_null () 52 : GNUNET_PQ_query_param_auto_from_type (&refresh->blinding_seed), 53 (0 < refresh->num_cs_r_values) 54 ? TALER_PQ_query_param_array_cs_r_pub (refresh->num_cs_r_values, 55 refresh->cs_r_values, 56 pg->conn) 57 : GNUNET_PQ_query_param_null (), 58 (0 < refresh->num_cs_r_values) 59 ? GNUNET_PQ_query_param_uint64 (&refresh->cs_r_choices) 60 : GNUNET_PQ_query_param_null (), 61 GNUNET_PQ_query_param_auto_from_type (&refresh->selected_h), 62 TALER_PQ_query_param_array_blinded_denom_sig (refresh->num_coins, 63 refresh->denom_sigs, 64 pg->conn), 65 GNUNET_PQ_query_param_array_uint64 (refresh->num_coins, 66 refresh->denom_serials, 67 pg->conn), 68 GNUNET_PQ_query_param_auto_from_type (&refresh->coin.coin_pub), 69 GNUNET_PQ_query_param_auto_from_type (&refresh->coin_sig), 70 GNUNET_PQ_query_param_uint32 (&refresh->noreveal_index), 71 GNUNET_PQ_query_param_bool (*zombie_required), 72 GNUNET_PQ_query_param_end 73 }; 74 bool coin_found; 75 bool no_noreveal_index; 76 bool no_coin_balance; 77 struct GNUNET_PQ_ResultSpec rs[] = { 78 GNUNET_PQ_result_spec_bool ("coin_found", 79 &coin_found), 80 GNUNET_PQ_result_spec_bool ("balance_ok", 81 balance_ok), 82 GNUNET_PQ_result_spec_bool ("zombie_required", 83 zombie_required), 84 GNUNET_PQ_result_spec_bool ("nonce_reuse", 85 nonce_reuse), 86 GNUNET_PQ_result_spec_bool ("found", 87 found), 88 GNUNET_PQ_result_spec_allow_null ( 89 GNUNET_PQ_result_spec_uint32 ("noreveal_index", 90 noreveal_index), 91 &no_noreveal_index), 92 GNUNET_PQ_result_spec_allow_null ( 93 TALER_PQ_RESULT_SPEC_AMOUNT ("coin_balance", 94 coin_balance), 95 &no_coin_balance), 96 GNUNET_PQ_result_spec_end 97 }; 98 enum GNUNET_DB_QueryStatus qs; 99 100 PREPARE (pg, 101 "call_refresh", 102 "SELECT " 103 " out_coin_found AS coin_found" 104 ",out_balance_ok AS balance_ok" 105 ",out_zombie_bad AS zombie_required" 106 ",out_nonce_reuse AS nonce_reuse" 107 ",out_idempotent AS found" 108 ",out_noreveal_index AS noreveal_index" 109 ",out_coin_balance AS coin_balance" 110 " FROM exchange_do_refresh" 111 " ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14,$15);"); 112 qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn, 113 "call_refresh", 114 params, 115 rs); 116 GNUNET_PQ_cleanup_query_params_closures (params); 117 if (0 > qs) 118 { 119 GNUNET_break (0); 120 return qs; 121 } 122 if (! coin_found) 123 { 124 return GNUNET_DB_STATUS_SUCCESS_NO_RESULTS; 125 } 126 if (*found && no_noreveal_index) 127 { 128 GNUNET_break (0); 129 return GNUNET_DB_STATUS_HARD_ERROR; 130 } 131 if (! balance_ok && no_coin_balance) 132 { 133 GNUNET_break (0); 134 return GNUNET_DB_STATUS_HARD_ERROR; 135 } 136 return qs; 137 }