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 src/backenddb/get_exchange_keys.c
      18              :  * @brief Implementation of the get_exchange_keys function for Postgres
      19              :  * @author Christian Grothoff
      20              :  */
      21              : #include "platform.h"
      22              : #include <taler/taler_pq_lib.h>
      23              : #include <taler/taler_exchange_service.h>
      24              : #include "merchant-database/get_exchange_keys.h"
      25              : #include "helper.h"
      26              : 
      27              : 
      28              : enum GNUNET_DB_QueryStatus
      29          101 : TALER_MERCHANTDB_get_exchange_keys (
      30              :   struct TALER_MERCHANTDB_PostgresContext *pg,
      31              :   const char *exchange_url,
      32              :   struct GNUNET_TIME_Absolute *first_retry,
      33              :   struct TALER_EXCHANGE_Keys **keys)
      34              : {
      35          101 :   struct GNUNET_PQ_QueryParam params[] = {
      36          101 :     GNUNET_PQ_query_param_string (exchange_url),
      37              :     GNUNET_PQ_query_param_end
      38              :   };
      39          101 :   json_t *jkeys = NULL;
      40          101 :   struct GNUNET_PQ_ResultSpec rs[] = {
      41          101 :     GNUNET_PQ_result_spec_absolute_time ("first_retry",
      42              :                                          first_retry),
      43          101 :     GNUNET_PQ_result_spec_allow_null (
      44              :       TALER_PQ_result_spec_json ("keys_json",
      45              :                                  &jkeys),
      46              :       NULL),
      47              :     GNUNET_PQ_result_spec_end
      48              :   };
      49              :   enum GNUNET_DB_QueryStatus qs;
      50              : 
      51          101 :   *keys = NULL;
      52          101 :   PREPARE (pg,
      53              :            "get_exchange_keys",
      54              :            "SELECT"
      55              :            " first_retry"
      56              :            ",keys_json::TEXT"
      57              :            " FROM merchant.merchant_exchange_keys"
      58              :            " WHERE exchange_url=$1;");
      59          101 :   qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
      60              :                                                  "get_exchange_keys",
      61              :                                                  params,
      62              :                                                  rs);
      63          101 :   if (qs <= 0)
      64           50 :     return qs;
      65           51 :   if (NULL != jkeys)
      66              :   {
      67           46 :     *keys = TALER_EXCHANGE_keys_from_json (jkeys);
      68           46 :     json_decref (jkeys);
      69              :   }
      70           51 :   return qs;
      71              : }