121 lines
4.7 KiB
C
121 lines
4.7 KiB
C
/*
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This file is part of TALER
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Copyright (C) 2022 Taler Systems SA
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TALER is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3, or (at your option) any later version.
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TALER is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
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*/
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/**
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* @file exchangedb/pg_have_deposit2.c
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* @brief Implementation of the have_deposit2 function for Postgres
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* @author Christian Grothoff
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*/
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#include "platform.h"
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#include "taler_error_codes.h"
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#include "taler_dbevents.h"
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#include "taler_pq_lib.h"
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#include "pg_have_deposit2.h"
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#include "pg_helper.h"
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enum GNUNET_DB_QueryStatus
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TEH_PG_have_deposit2 (
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void *cls,
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const struct TALER_PrivateContractHashP *h_contract_terms,
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const struct TALER_MerchantWireHashP *h_wire,
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const struct TALER_CoinSpendPublicKeyP *coin_pub,
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const struct TALER_MerchantPublicKeyP *merchant,
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struct GNUNET_TIME_Timestamp refund_deadline,
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struct TALER_Amount *deposit_fee,
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struct GNUNET_TIME_Timestamp *exchange_timestamp)
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{
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struct PostgresClosure *pg = cls;
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struct GNUNET_PQ_QueryParam params[] = {
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GNUNET_PQ_query_param_auto_from_type (coin_pub),
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GNUNET_PQ_query_param_auto_from_type (h_contract_terms),
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GNUNET_PQ_query_param_auto_from_type (merchant),
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GNUNET_PQ_query_param_end
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};
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struct TALER_EXCHANGEDB_Deposit deposit2;
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struct GNUNET_PQ_ResultSpec rs[] = {
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TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee",
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&deposit2.amount_with_fee),
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GNUNET_PQ_result_spec_timestamp ("wallet_timestamp",
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&deposit2.timestamp),
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GNUNET_PQ_result_spec_timestamp ("exchange_timestamp",
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exchange_timestamp),
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GNUNET_PQ_result_spec_timestamp ("refund_deadline",
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&deposit2.refund_deadline),
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GNUNET_PQ_result_spec_timestamp ("wire_deadline",
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&deposit2.wire_deadline),
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TALER_PQ_RESULT_SPEC_AMOUNT ("fee_deposit",
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deposit_fee),
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GNUNET_PQ_result_spec_auto_from_type ("wire_salt",
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&deposit2.wire_salt),
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GNUNET_PQ_result_spec_string ("receiver_wire_account",
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&deposit2.receiver_wire_account),
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GNUNET_PQ_result_spec_end
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};
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enum GNUNET_DB_QueryStatus qs;
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struct TALER_MerchantWireHashP h_wire2;
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GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
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"Getting deposits for coin %s\n",
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TALER_B2S (coin_pub));
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/* Fetch an existing deposit request, used to ensure idempotency
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during /deposit processing. Used in #postgres_have_deposit(). */
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PREPARE (pg,
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"get_deposit",
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"SELECT"
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" dep.amount_with_fee_val"
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",dep.amount_with_fee_frac"
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",denominations.fee_deposit_val"
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",denominations.fee_deposit_frac"
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",dep.wallet_timestamp"
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",dep.exchange_timestamp"
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",dep.refund_deadline"
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",dep.wire_deadline"
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",dep.h_contract_terms"
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",dep.wire_salt"
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",wt.payto_uri AS receiver_wire_account"
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" FROM deposits dep"
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" JOIN known_coins kc ON (kc.coin_pub = dep.coin_pub)"
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" JOIN denominations USING (denominations_serial)"
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" JOIN wire_targets wt USING (wire_target_h_payto)"
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" WHERE dep.coin_pub=$1"
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" AND dep.merchant_pub=$3"
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" AND dep.h_contract_terms=$2;");
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qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
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"get_deposit",
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params,
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rs);
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if (0 >= qs)
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return qs;
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TALER_merchant_wire_signature_hash (deposit2.receiver_wire_account,
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&deposit2.wire_salt,
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&h_wire2);
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GNUNET_free (deposit2.receiver_wire_account);
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/* Now we check that the other information in @a deposit
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also matches, and if not report inconsistencies. */
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if ( (GNUNET_TIME_timestamp_cmp (refund_deadline,
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!=,
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deposit2.refund_deadline)) ||
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(0 != GNUNET_memcmp (h_wire,
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&h_wire2) ) )
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{
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/* Inconsistencies detected! Does not match! */
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return GNUNET_DB_STATUS_SUCCESS_NO_RESULTS;
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}
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return GNUNET_DB_STATUS_SUCCESS_ONE_RESULT;
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}
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