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/have_deposit2.c
      18              :  * @brief Implementation of the have_deposit2 function for Postgres
      19              :  * @author Christian Grothoff
      20              :  */
      21              : #include "taler/taler_pq_lib.h"
      22              : #include "exchange-database/have_deposit2.h"
      23              : #include "helper.h"
      24              : 
      25              : 
      26              : enum GNUNET_DB_QueryStatus
      27            0 : TALER_EXCHANGEDB_have_deposit2 (
      28              :   struct TALER_EXCHANGEDB_PostgresContext *pg,
      29              :   const struct TALER_PrivateContractHashP *h_contract_terms,
      30              :   const struct TALER_MerchantWireHashP *h_wire,
      31              :   const struct TALER_CoinSpendPublicKeyP *coin_pub,
      32              :   const struct TALER_MerchantPublicKeyP *merchant,
      33              :   struct GNUNET_TIME_Timestamp refund_deadline,
      34              :   struct TALER_Amount *deposit_fee,
      35              :   struct GNUNET_TIME_Timestamp *exchange_timestamp)
      36              : {
      37            0 :   struct GNUNET_PQ_QueryParam params[] = {
      38            0 :     GNUNET_PQ_query_param_auto_from_type (coin_pub),
      39            0 :     GNUNET_PQ_query_param_auto_from_type (h_contract_terms),
      40            0 :     GNUNET_PQ_query_param_auto_from_type (merchant),
      41              :     GNUNET_PQ_query_param_end
      42              :   };
      43              :   struct TALER_EXCHANGEDB_Deposit deposit2;
      44            0 :   struct GNUNET_PQ_ResultSpec rs[] = {
      45            0 :     TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee",
      46              :                                  &deposit2.amount_with_fee),
      47            0 :     GNUNET_PQ_result_spec_timestamp ("wallet_timestamp",
      48              :                                      &deposit2.timestamp),
      49            0 :     GNUNET_PQ_result_spec_timestamp ("exchange_timestamp",
      50              :                                      exchange_timestamp),
      51            0 :     GNUNET_PQ_result_spec_timestamp ("refund_deadline",
      52              :                                      &deposit2.refund_deadline),
      53            0 :     GNUNET_PQ_result_spec_timestamp ("wire_deadline",
      54              :                                      &deposit2.wire_deadline),
      55            0 :     TALER_PQ_RESULT_SPEC_AMOUNT ("fee_deposit",
      56              :                                  deposit_fee),
      57            0 :     GNUNET_PQ_result_spec_auto_from_type ("wire_salt",
      58              :                                           &deposit2.wire_salt),
      59            0 :     GNUNET_PQ_result_spec_string ("receiver_wire_account",
      60              :                                   &deposit2.receiver_wire_account.full_payto),
      61              :     GNUNET_PQ_result_spec_end
      62              :   };
      63              :   enum GNUNET_DB_QueryStatus qs;
      64              :   struct TALER_MerchantWireHashP h_wire2;
      65              : 
      66            0 :   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
      67              :               "Getting deposits for coin %s\n",
      68              :               TALER_B2S (coin_pub));
      69            0 :   PREPARE (pg,
      70              :            "get_deposit",
      71              :            "SELECT"
      72              :            " cdep.amount_with_fee"
      73              :            ",denominations.fee_deposit"
      74              :            ",bdep.wallet_timestamp"
      75              :            ",bdep.exchange_timestamp"
      76              :            ",bdep.refund_deadline"
      77              :            ",bdep.wire_deadline"
      78              :            ",bdep.h_contract_terms"
      79              :            ",bdep.wire_salt"
      80              :            ",wt.payto_uri AS receiver_wire_account"
      81              :            " FROM coin_deposits cdep"
      82              :            " JOIN batch_deposits bdep USING (batch_deposit_serial_id)"
      83              :            " JOIN known_coins kc ON (kc.coin_pub = cdep.coin_pub)"
      84              :            " JOIN denominations USING (denominations_serial)"
      85              :            " JOIN wire_targets wt USING (wire_target_h_payto)"
      86              :            " WHERE cdep.coin_pub=$1"
      87              :            "   AND bdep.merchant_pub=$3"
      88              :            "   AND bdep.h_contract_terms=$2;");
      89              :   /* Note: query might be made more efficient if we computed the 'shard'
      90              :      from merchant_pub and included that as a constraint on bdep! */
      91            0 :   qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
      92              :                                                  "get_deposit",
      93              :                                                  params,
      94              :                                                  rs);
      95            0 :   if (0 >= qs)
      96            0 :     return qs;
      97            0 :   TALER_merchant_wire_signature_hash (deposit2.receiver_wire_account,
      98              :                                       &deposit2.wire_salt,
      99              :                                       &h_wire2);
     100            0 :   GNUNET_free (deposit2.receiver_wire_account.full_payto);
     101              :   /* Now we check that the other information in @a deposit
     102              :      also matches, and if not report inconsistencies. */
     103            0 :   if ( (GNUNET_TIME_timestamp_cmp (refund_deadline,
     104              :                                    !=,
     105            0 :                                    deposit2.refund_deadline)) ||
     106            0 :        (0 != GNUNET_memcmp (h_wire,
     107              :                             &h_wire2) ) )
     108              :   {
     109              :     /* Inconsistencies detected! Does not match! */
     110            0 :     return GNUNET_DB_STATUS_SUCCESS_NO_RESULTS;
     111              :   }
     112            0 :   return GNUNET_DB_STATUS_SUCCESS_ONE_RESULT;
     113              : }