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 pg_do_reserve_open.c
      18              :  * @brief Low-level (statement-level) Postgres database access for the exchange
      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_do_reserve_open.h"
      26              : #include "pg_helper.h"
      27              : 
      28              : 
      29              : enum GNUNET_DB_QueryStatus
      30            6 : TEH_PG_do_reserve_open (
      31              :   void *cls,
      32              :   const struct TALER_ReservePublicKeyP *reserve_pub,
      33              :   const struct TALER_Amount *total_paid,
      34              :   const struct TALER_Amount *reserve_payment,
      35              :   uint32_t min_purse_limit,
      36              :   const struct TALER_ReserveSignatureP *reserve_sig,
      37              :   struct GNUNET_TIME_Timestamp desired_expiration,
      38              :   struct GNUNET_TIME_Timestamp now,
      39              :   const struct TALER_Amount *open_fee,
      40              :   bool *no_funds,
      41              :   struct TALER_Amount *reserve_balance,
      42              :   struct TALER_Amount *open_cost,
      43              :   struct GNUNET_TIME_Timestamp *final_expiration)
      44              : {
      45            6 :   struct PostgresClosure *pg = cls;
      46            6 :   struct GNUNET_PQ_QueryParam params[] = {
      47            6 :     GNUNET_PQ_query_param_auto_from_type (reserve_pub),
      48            6 :     TALER_PQ_query_param_amount (
      49            6 :       pg->conn,
      50              :       total_paid),
      51            6 :     TALER_PQ_query_param_amount (
      52            6 :       pg->conn,
      53              :       reserve_payment),
      54            6 :     GNUNET_PQ_query_param_uint32 (&min_purse_limit),
      55            6 :     GNUNET_PQ_query_param_uint32 (&pg->def_purse_limit),
      56            6 :     GNUNET_PQ_query_param_auto_from_type (reserve_sig),
      57            6 :     GNUNET_PQ_query_param_timestamp (&desired_expiration),
      58            6 :     GNUNET_PQ_query_param_relative_time (&pg->legal_reserve_expiration_time),
      59            6 :     GNUNET_PQ_query_param_timestamp (&now),
      60            6 :     TALER_PQ_query_param_amount (pg->conn,
      61              :                                  open_fee),
      62              :     GNUNET_PQ_query_param_end
      63              :   };
      64            6 :   bool no_reserve = true;
      65            6 :   struct GNUNET_PQ_ResultSpec rs[] = {
      66            6 :     TALER_PQ_result_spec_amount ("out_open_cost",
      67            6 :                                  pg->currency,
      68              :                                  open_cost),
      69            6 :     TALER_PQ_result_spec_amount ("out_reserve_balance",
      70            6 :                                  pg->currency,
      71              :                                  reserve_balance),
      72            6 :     GNUNET_PQ_result_spec_timestamp ("out_final_expiration",
      73              :                                      final_expiration),
      74            6 :     GNUNET_PQ_result_spec_bool ("out_no_reserve",
      75              :                                 &no_reserve),
      76            6 :     GNUNET_PQ_result_spec_bool ("out_no_funds",
      77              :                                 no_funds),
      78              :     GNUNET_PQ_result_spec_end
      79              :   };
      80              :   enum GNUNET_DB_QueryStatus qs;
      81              : 
      82            6 :   PREPARE (pg,
      83              :            "do_reserve_open",
      84              :            "SELECT "
      85              :            " out_open_cost"
      86              :            ",out_final_expiration"
      87              :            ",out_no_funds"
      88              :            ",out_no_reserve"
      89              :            ",out_reserve_balance"
      90              :            " FROM exchange_do_reserve_open"
      91              :            " ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10);");
      92            6 :   qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
      93              :                                                  "do_reserve_open",
      94              :                                                  params,
      95              :                                                  rs);
      96            6 :   if (qs <= 0)
      97            0 :     return qs;
      98            6 :   if (no_reserve)
      99            0 :     return GNUNET_DB_STATUS_SUCCESS_NO_RESULTS;
     100            6 :   return qs;
     101              : }