Line data    Source code

       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_wire_fee.c
      18             :  * @brief Implementation of the lookup_wire_fee 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_wire_fee.h"
      26             : #include "pg_helper.h"
      27             : 
      28             : enum GNUNET_DB_QueryStatus
      29          10 : TMH_PG_lookup_wire_fee (void *cls,
      30             :                         const struct TALER_MasterPublicKeyP *master_pub,
      31             :                         const char *wire_method,
      32             :                         struct GNUNET_TIME_Timestamp contract_date,
      33             :                         struct TALER_WireFeeSet *fees,
      34             :                         struct GNUNET_TIME_Timestamp *start_date,
      35             :                         struct GNUNET_TIME_Timestamp *end_date,
      36             :                         struct TALER_MasterSignatureP *master_sig)
      37             : {
      38          10 :   struct PostgresClosure *pg = cls;
      39             :   struct GNUNET_HashCode h_wire_method;
      40          10 :   struct GNUNET_PQ_QueryParam params[] = {
      41          10 :     GNUNET_PQ_query_param_auto_from_type (master_pub),
      42          10 :     GNUNET_PQ_query_param_auto_from_type (&h_wire_method),
      43          10 :     GNUNET_PQ_query_param_timestamp (&contract_date),
      44             :     GNUNET_PQ_query_param_end
      45             :   };
      46          10 :   struct GNUNET_PQ_ResultSpec rs[] = {
      47          10 :     TALER_PQ_result_spec_amount_with_currency ("wire_fee",
      48             :                                                &fees->wire),
      49          10 :     TALER_PQ_result_spec_amount_with_currency ("closing_fee",
      50             :                                                &fees->closing),
      51          10 :     GNUNET_PQ_result_spec_timestamp ("start_date",
      52             :                                      start_date),
      53          10 :     GNUNET_PQ_result_spec_timestamp ("end_date",
      54             :                                      end_date),
      55          10 :     GNUNET_PQ_result_spec_auto_from_type ("master_sig",
      56             :                                           master_sig),
      57             :     GNUNET_PQ_result_spec_end
      58             :   };
      59             : 
      60          10 :   check_connection (pg);
      61          10 :   GNUNET_CRYPTO_hash (wire_method,
      62          10 :                       strlen (wire_method) + 1,
      63             :                       &h_wire_method);
      64             : 
      65          10 :   PREPARE (pg,
      66             :            "lookup_wire_fee",
      67             :            "SELECT"
      68             :            " wire_fee"
      69             :            ",closing_fee"
      70             :            ",start_date"
      71             :            ",end_date"
      72             :            ",master_sig"
      73             :            " FROM merchant_exchange_wire_fees"
      74             :            " WHERE master_pub=$1"
      75             :            "   AND h_wire_method=$2"
      76             :            "   AND start_date <= $3"
      77             :            "   AND end_date > $3");
      78             : 
      79          10 :   return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
      80             :                                                    "lookup_wire_fee",
      81             :                                                    params,
      82             :                                                    rs);
      83             : }