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 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 "taler/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_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              : }