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1 : /* 2 : This file is part of TALER 3 : Copyright (C) 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_get_signature_for_known_coin.c 18 : * @brief Implementation of the get_signature_for_known_coin function for Postgres 19 : * @author Özgür Kesim 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_get_signature_for_known_coin.h" 26 : #include "pg_helper.h" 27 : 28 : enum GNUNET_DB_QueryStatus 29 2 : TEH_PG_get_signature_for_known_coin ( 30 : void *cls, 31 : const struct TALER_CoinSpendPublicKeyP *coin_pub, 32 : struct TALER_DenominationPublicKey *denom_pub, 33 : struct TALER_DenominationSignature *denom_sig) 34 : { 35 2 : struct PostgresClosure *pg = cls; 36 2 : struct GNUNET_PQ_QueryParam params[] = { 37 2 : GNUNET_PQ_query_param_auto_from_type (coin_pub), 38 : GNUNET_PQ_query_param_end 39 : }; 40 2 : struct GNUNET_PQ_ResultSpec rs[] = { 41 2 : TALER_PQ_result_spec_denom_pub ("denom_pub", 42 : denom_pub), 43 2 : TALER_PQ_result_spec_denom_sig ("denom_sig", 44 : denom_sig), 45 : GNUNET_PQ_result_spec_end 46 : }; 47 : 48 2 : GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, 49 : "Getting denomination and signature for (potentially) known coin %s\n", 50 : TALER_B2S (coin_pub)); 51 2 : PREPARE (pg, 52 : "get_signature_for_known_coin", 53 : "SELECT" 54 : " denominations.denom_pub" 55 : ",denom_sig" 56 : " FROM known_coins" 57 : " JOIN denominations USING (denominations_serial)" 58 : " WHERE coin_pub=$1;"); 59 2 : return GNUNET_PQ_eval_prepared_singleton_select (pg->conn, 60 : "get_signature_for_known_coin", 61 : params, 62 : rs); 63 : }