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_select_contract.c
      18             :  * @brief Implementation of the select_contract function for Postgres
      19             :  * @author Christian Grothoff
      20             :  */
      21             : #include "platform.h"
      22             : #include "taler_error_codes.h"
      23             : #include "taler_dbevents.h"
      24             : #include "taler_pq_lib.h"
      25             : #include "pg_select_contract.h"
      26             : #include "pg_helper.h"
      27             : 
      28             : enum GNUNET_DB_QueryStatus
      29           6 : TEH_PG_select_contract (void *cls,
      30             :                         const struct TALER_ContractDiffiePublicP *pub_ckey,
      31             :                         struct TALER_PurseContractPublicKeyP *purse_pub,
      32             :                         struct TALER_PurseContractSignatureP *econtract_sig,
      33             :                         size_t *econtract_size,
      34             :                         void **econtract)
      35             : {
      36           6 :   struct PostgresClosure *pg = cls;
      37           6 :   struct GNUNET_PQ_QueryParam params[] = {
      38           6 :     GNUNET_PQ_query_param_auto_from_type (pub_ckey),
      39             :     GNUNET_PQ_query_param_end
      40             :   };
      41           6 :   struct GNUNET_PQ_ResultSpec rs[] = {
      42           6 :     GNUNET_PQ_result_spec_auto_from_type ("purse_pub",
      43             :                                           purse_pub),
      44           6 :     GNUNET_PQ_result_spec_auto_from_type ("contract_sig",
      45             :                                           econtract_sig),
      46           6 :     GNUNET_PQ_result_spec_variable_size ("e_contract",
      47             :                                          econtract,
      48             :                                          econtract_size),
      49             :     GNUNET_PQ_result_spec_end
      50             :   };
      51             : 
      52             :   /* Used in #postgres_select_contract */
      53           6 :   PREPARE (pg,
      54             :            "select_contract",
      55             :            "SELECT "
      56             :            " purse_pub"
      57             :            ",e_contract"
      58             :            ",contract_sig"
      59             :            " FROM contracts"
      60             :            "   WHERE pub_ckey=$1;");
      61           6 :   return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
      62             :                                                    "select_contract",
      63             :                                                    params,
      64             :                                                    rs);
      65             : 
      66             : }