Line data    Source code

       1              : /*
       2              :    This file is part of TALER
       3              :    Copyright (C) 2022 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_known_coin.c
      18              :  * @brief Implementation of the get_known_coin function for Postgres
      19              :  * @author Christian Grothoff
      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_known_coin.h"
      26              : #include "pg_helper.h"
      27              : 
      28              : enum GNUNET_DB_QueryStatus
      29            0 : TEH_PG_get_known_coin (void *cls,
      30              :                        const struct TALER_CoinSpendPublicKeyP *coin_pub,
      31              :                        struct TALER_CoinPublicInfo *coin_info)
      32              : {
      33            0 :   struct PostgresClosure *pg = cls;
      34            0 :   struct GNUNET_PQ_QueryParam params[] = {
      35            0 :     GNUNET_PQ_query_param_auto_from_type (coin_pub),
      36              :     GNUNET_PQ_query_param_end
      37              :   };
      38            0 :   struct GNUNET_PQ_ResultSpec rs[] = {
      39            0 :     GNUNET_PQ_result_spec_auto_from_type ("denom_pub_hash",
      40              :                                           &coin_info->denom_pub_hash),
      41            0 :     GNUNET_PQ_result_spec_allow_null (
      42            0 :       GNUNET_PQ_result_spec_auto_from_type ("age_commitment_hash",
      43              :                                             &coin_info->h_age_commitment),
      44              :       &coin_info->no_age_commitment),
      45            0 :     TALER_PQ_result_spec_denom_sig ("denom_sig",
      46              :                                     &coin_info->denom_sig),
      47              :     GNUNET_PQ_result_spec_end
      48              :   };
      49              : 
      50            0 :   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
      51              :               "Getting known coin data for coin %s\n",
      52              :               TALER_B2S (coin_pub));
      53            0 :   coin_info->coin_pub = *coin_pub;
      54            0 :   PREPARE (pg,
      55              :            "get_known_coin",
      56              :            "SELECT"
      57              :            " denominations.denom_pub_hash"
      58              :            ",age_commitment_hash"
      59              :            ",denom_sig"
      60              :            " FROM known_coins"
      61              :            " JOIN denominations USING (denominations_serial)"
      62              :            " WHERE coin_pub=$1;");
      63            0 :   return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
      64              :                                                    "get_known_coin",
      65              :                                                    params,
      66              :                                                    rs);
      67              : }