merchant

Merchant backend to process payments, run by merchants
Log | Files | Refs | Submodules | README | LICENSE

pg_lookup_refund_proof.c (2394B)

      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 backenddb/pg_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_error_codes.h>
     23 #include <taler/taler_dbevents.h>
     24 #include <taler/taler_pq_lib.h>
     25 #include "pg_lookup_refund_proof.h"
     26 #include "pg_helper.h"
     27 
     28 enum GNUNET_DB_QueryStatus
     29 TMH_PG_lookup_refund_proof (void *cls,
     30                             uint64_t refund_serial,
     31                             struct TALER_ExchangeSignatureP *exchange_sig,
     32                             struct TALER_ExchangePublicKeyP *exchange_pub)
     33 {
     34   struct PostgresClosure *pg = cls;
     35   struct GNUNET_PQ_QueryParam params[] = {
     36     GNUNET_PQ_query_param_uint64 (&refund_serial),
     37     GNUNET_PQ_query_param_end
     38   };
     39   struct GNUNET_PQ_ResultSpec rs[] = {
     40     GNUNET_PQ_result_spec_auto_from_type ("exchange_sig",
     41                                           exchange_sig),
     42     GNUNET_PQ_result_spec_auto_from_type ("exchange_pub",
     43                                           exchange_pub),
     44     GNUNET_PQ_result_spec_end
     45   };
     46 
     47   check_connection (pg);
     48   PREPARE (pg,
     49            "lookup_refund_proof",
     50            "SELECT"
     51            " merchant_exchange_signing_keys.exchange_pub"
     52            ",exchange_sig"
     53            " FROM merchant_refund_proofs"
     54            "  JOIN merchant_exchange_signing_keys"
     55            "    USING (signkey_serial)"
     56            " WHERE"
     57            "   refund_serial=$1");
     58 
     59   return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
     60                                                    "lookup_refund_proof",
     61                                                    params,
     62                                                    rs);
     63 }