merchant

Merchant backend to process payments, run by merchants
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lookup_refund_proof.c (2393B)

      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 src/backenddb/lookup_refund_proof.c
     18  * @brief Implementation of the lookup_refund_proof function for Postgres
     19  * @author Iván Ávalos
     20  */
     21 #include "platform.h"
     22 #include <taler/taler_pq_lib.h>
     23 #include "merchant-database/lookup_refund_proof.h"
     24 #include "helper.h"
     25 
     26 
     27 enum GNUNET_DB_QueryStatus
     28 TALER_MERCHANTDB_lookup_refund_proof (
     29   struct TALER_MERCHANTDB_PostgresContext *pg,
     30   uint64_t refund_serial,
     31   struct TALER_ExchangeSignatureP *exchange_sig,
     32   struct TALER_ExchangePublicKeyP *exchange_pub)
     33 {
     34   struct GNUNET_PQ_QueryParam params[] = {
     35     GNUNET_PQ_query_param_uint64 (&refund_serial),
     36     GNUNET_PQ_query_param_end
     37   };
     38   struct GNUNET_PQ_ResultSpec rs[] = {
     39     GNUNET_PQ_result_spec_auto_from_type ("exchange_sig",
     40                                           exchange_sig),
     41     GNUNET_PQ_result_spec_auto_from_type ("exchange_pub",
     42                                           exchange_pub),
     43     GNUNET_PQ_result_spec_end
     44   };
     45 
     46   GNUNET_assert (NULL != pg->current_merchant_id);
     47   check_connection (pg);
     48   TMH_PQ_prepare_anon (pg,
     49                        "SELECT"
     50                        " merchant.merchant_exchange_signing_keys.exchange_pub"
     51                        ",exchange_sig"
     52                        " FROM merchant_refund_proofs"
     53                        "  JOIN merchant.merchant_exchange_signing_keys"
     54                        "    USING (signkey_serial)"
     55                        " WHERE"
     56                        "   refund_serial=$1");
     57   return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
     58                                                    "",
     59                                                    params,
     60                                                    rs);
     61 }