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_have_deposit2.c
      18             :  * @brief Implementation of the have_deposit2 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_have_deposit2.h"
      26             : #include "pg_helper.h"
      27             : 
      28             : 
      29             : enum GNUNET_DB_QueryStatus
      30          93 : TEH_PG_have_deposit2 (
      31             :   void *cls,
      32             :   const struct TALER_PrivateContractHashP *h_contract_terms,
      33             :   const struct TALER_MerchantWireHashP *h_wire,
      34             :   const struct TALER_CoinSpendPublicKeyP *coin_pub,
      35             :   const struct TALER_MerchantPublicKeyP *merchant,
      36             :   struct GNUNET_TIME_Timestamp refund_deadline,
      37             :   struct TALER_Amount *deposit_fee,
      38             :   struct GNUNET_TIME_Timestamp *exchange_timestamp)
      39             : {
      40          93 :   struct PostgresClosure *pg = cls;
      41          93 :   struct GNUNET_PQ_QueryParam params[] = {
      42          93 :     GNUNET_PQ_query_param_auto_from_type (coin_pub),
      43          93 :     GNUNET_PQ_query_param_auto_from_type (h_contract_terms),
      44          93 :     GNUNET_PQ_query_param_auto_from_type (merchant),
      45             :     GNUNET_PQ_query_param_end
      46             :   };
      47             :   struct TALER_EXCHANGEDB_Deposit deposit2;
      48          93 :   struct GNUNET_PQ_ResultSpec rs[] = {
      49          93 :     TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee",
      50             :                                  &deposit2.amount_with_fee),
      51          93 :     GNUNET_PQ_result_spec_timestamp ("wallet_timestamp",
      52             :                                      &deposit2.timestamp),
      53          93 :     GNUNET_PQ_result_spec_timestamp ("exchange_timestamp",
      54             :                                      exchange_timestamp),
      55          93 :     GNUNET_PQ_result_spec_timestamp ("refund_deadline",
      56             :                                      &deposit2.refund_deadline),
      57          93 :     GNUNET_PQ_result_spec_timestamp ("wire_deadline",
      58             :                                      &deposit2.wire_deadline),
      59          93 :     TALER_PQ_RESULT_SPEC_AMOUNT ("fee_deposit",
      60             :                                  deposit_fee),
      61          93 :     GNUNET_PQ_result_spec_auto_from_type ("wire_salt",
      62             :                                           &deposit2.wire_salt),
      63          93 :     GNUNET_PQ_result_spec_string ("receiver_wire_account",
      64             :                                   &deposit2.receiver_wire_account.full_payto),
      65             :     GNUNET_PQ_result_spec_end
      66             :   };
      67             :   enum GNUNET_DB_QueryStatus qs;
      68             :   struct TALER_MerchantWireHashP h_wire2;
      69             : 
      70          93 :   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
      71             :               "Getting deposits for coin %s\n",
      72             :               TALER_B2S (coin_pub));
      73          93 :   PREPARE (pg,
      74             :            "get_deposit",
      75             :            "SELECT"
      76             :            " cdep.amount_with_fee"
      77             :            ",denominations.fee_deposit"
      78             :            ",bdep.wallet_timestamp"
      79             :            ",bdep.exchange_timestamp"
      80             :            ",bdep.refund_deadline"
      81             :            ",bdep.wire_deadline"
      82             :            ",bdep.h_contract_terms"
      83             :            ",bdep.wire_salt"
      84             :            ",wt.payto_uri AS receiver_wire_account"
      85             :            " FROM coin_deposits cdep"
      86             :            " JOIN batch_deposits bdep USING (batch_deposit_serial_id)"
      87             :            " JOIN known_coins kc ON (kc.coin_pub = cdep.coin_pub)"
      88             :            " JOIN denominations USING (denominations_serial)"
      89             :            " JOIN wire_targets wt USING (wire_target_h_payto)"
      90             :            " WHERE cdep.coin_pub=$1"
      91             :            "   AND bdep.merchant_pub=$3"
      92             :            "   AND bdep.h_contract_terms=$2;");
      93             :   /* Note: query might be made more efficient if we computed the 'shard'
      94             :      from merchant_pub and included that as a constraint on bdep! */
      95          93 :   qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
      96             :                                                  "get_deposit",
      97             :                                                  params,
      98             :                                                  rs);
      99          93 :   if (0 >= qs)
     100           8 :     return qs;
     101          85 :   TALER_merchant_wire_signature_hash (deposit2.receiver_wire_account,
     102             :                                       &deposit2.wire_salt,
     103             :                                       &h_wire2);
     104          85 :   GNUNET_free (deposit2.receiver_wire_account.full_payto);
     105             :   /* Now we check that the other information in @a deposit
     106             :      also matches, and if not report inconsistencies. */
     107          85 :   if ( (GNUNET_TIME_timestamp_cmp (refund_deadline,
     108             :                                    !=,
     109          85 :                                    deposit2.refund_deadline)) ||
     110          85 :        (0 != GNUNET_memcmp (h_wire,
     111             :                             &h_wire2) ) )
     112             :   {
     113             :     /* Inconsistencies detected! Does not match! */
     114           4 :     return GNUNET_DB_STATUS_SUCCESS_NO_RESULTS;
     115             :   }
     116          81 :   return GNUNET_DB_STATUS_SUCCESS_ONE_RESULT;
     117             : }