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            8 : 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            8 :   struct PostgresClosure *pg = cls;
      39              :   struct GNUNET_HashCode h_wire_method;
      40            8 :   struct GNUNET_PQ_QueryParam params[] = {
      41            8 :     GNUNET_PQ_query_param_auto_from_type (master_pub),
      42            8 :     GNUNET_PQ_query_param_auto_from_type (&h_wire_method),
      43            8 :     GNUNET_PQ_query_param_timestamp (&contract_date),
      44              :     GNUNET_PQ_query_param_end
      45              :   };
      46            8 :   struct GNUNET_PQ_ResultSpec rs[] = {
      47            8 :     TALER_PQ_result_spec_amount_with_currency ("wire_fee",
      48              :                                                &fees->wire),
      49            8 :     TALER_PQ_result_spec_amount_with_currency ("closing_fee",
      50              :                                                &fees->closing),
      51            8 :     GNUNET_PQ_result_spec_timestamp ("start_date",
      52              :                                      start_date),
      53            8 :     GNUNET_PQ_result_spec_timestamp ("end_date",
      54              :                                      end_date),
      55            8 :     GNUNET_PQ_result_spec_auto_from_type ("master_sig",
      56              :                                           master_sig),
      57              :     GNUNET_PQ_result_spec_end
      58              :   };
      59              : 
      60            8 :   check_connection (pg);
      61            8 :   GNUNET_CRYPTO_hash (wire_method,
      62            8 :                       strlen (wire_method) + 1,
      63              :                       &h_wire_method);
      64              : 
      65            8 :   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            8 :   return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
      80              :                                                    "lookup_wire_fee",
      81              :                                                    params,
      82              :                                                    rs);
      83              : }