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/select_contract.c
      18              :  * @brief Implementation of the select_contract function for Postgres
      19              :  * @author Christian Grothoff
      20              :  */
      21              : #include "taler/taler_pq_lib.h"
      22              : #include "exchange-database/select_contract.h"
      23              : #include "helper.h"
      24              : 
      25              : enum GNUNET_DB_QueryStatus
      26            6 : TALER_EXCHANGEDB_select_contract (struct TALER_EXCHANGEDB_PostgresContext *pg,
      27              :                                   const struct TALER_ContractDiffiePublicP *
      28              :                                   pub_ckey,
      29              :                                   struct TALER_PurseContractPublicKeyP *
      30              :                                   purse_pub,
      31              :                                   struct TALER_PurseContractSignatureP *
      32              :                                   econtract_sig,
      33              :                                   size_t *econtract_size,
      34              :                                   void **econtract)
      35              : {
      36            6 :   struct GNUNET_PQ_QueryParam params[] = {
      37            6 :     GNUNET_PQ_query_param_auto_from_type (pub_ckey),
      38              :     GNUNET_PQ_query_param_end
      39              :   };
      40            6 :   struct GNUNET_PQ_ResultSpec rs[] = {
      41            6 :     GNUNET_PQ_result_spec_auto_from_type ("purse_pub",
      42              :                                           purse_pub),
      43            6 :     GNUNET_PQ_result_spec_auto_from_type ("contract_sig",
      44              :                                           econtract_sig),
      45            6 :     GNUNET_PQ_result_spec_variable_size ("e_contract",
      46              :                                          econtract,
      47              :                                          econtract_size),
      48              :     GNUNET_PQ_result_spec_end
      49              :   };
      50              : 
      51              :   /* Used in #postgres_select_contract */
      52            6 :   PREPARE (pg,
      53              :            "select_contract",
      54              :            "SELECT "
      55              :            " purse_pub"
      56              :            ",e_contract"
      57              :            ",contract_sig"
      58              :            " FROM contracts"
      59              :            "   WHERE pub_ckey=$1;");
      60            6 :   return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
      61              :                                                    "select_contract",
      62              :                                                    params,
      63              :                                                    rs);
      64              : 
      65              : }