1 files changed, 117 insertions, 0 deletions
diff --git a/src/exchangedb/pg_have_deposit2.c b/src/exchangedb/pg_have_deposit2.c
new file mode 100644
index 000000000..e00ad7490
--- /dev/null
+++ b/src/exchangedb/pg_have_deposit2.c
@@ -0,0 +1,117 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 Taler Systems SA
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+/**
+ * @file exchangedb/pg_have_deposit2.c
+ * @brief Implementation of the have_deposit2 function for Postgres
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_have_deposit2.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TEH_PG_have_deposit2 (
+  void *cls,
+  const struct TALER_PrivateContractHashP *h_contract_terms,
+  const struct TALER_MerchantWireHashP *h_wire,
+  const struct TALER_CoinSpendPublicKeyP *coin_pub,
+  const struct TALER_MerchantPublicKeyP *merchant,
+  struct GNUNET_TIME_Timestamp refund_deadline,
+  struct TALER_Amount *deposit_fee,
+  struct GNUNET_TIME_Timestamp *exchange_timestamp)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (coin_pub),
+    GNUNET_PQ_query_param_auto_from_type (h_contract_terms),
+    GNUNET_PQ_query_param_auto_from_type (merchant),
+    GNUNET_PQ_query_param_end
+  };
+  struct TALER_EXCHANGEDB_Deposit deposit2;
+  struct GNUNET_PQ_ResultSpec rs[] = {
+    TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee",
+                                 &deposit2.amount_with_fee),
+    GNUNET_PQ_result_spec_timestamp ("wallet_timestamp",
+                                     &deposit2.timestamp),
+    GNUNET_PQ_result_spec_timestamp ("exchange_timestamp",
+                                     exchange_timestamp),
+    GNUNET_PQ_result_spec_timestamp ("refund_deadline",
+                                     &deposit2.refund_deadline),
+    GNUNET_PQ_result_spec_timestamp ("wire_deadline",
+                                     &deposit2.wire_deadline),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("fee_deposit",
+                                 deposit_fee),
+    GNUNET_PQ_result_spec_auto_from_type ("wire_salt",
+                                          &deposit2.wire_salt),
+    GNUNET_PQ_result_spec_string ("receiver_wire_account",
+                                  &deposit2.receiver_wire_account),
+    GNUNET_PQ_result_spec_end
+  };
+  enum GNUNET_DB_QueryStatus qs;
+  struct TALER_MerchantWireHashP h_wire2;
+
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Getting deposits for coin %s\n",
+              TALER_B2S (coin_pub));
+  PREPARE (pg,
+           "get_deposit",
+           "SELECT"
+           " cdep.amount_with_fee"
+           ",denominations.fee_deposit"
+           ",bdep.wallet_timestamp"
+           ",bdep.exchange_timestamp"
+           ",bdep.refund_deadline"
+           ",bdep.wire_deadline"
+           ",bdep.h_contract_terms"
+           ",bdep.wire_salt"
+           ",wt.payto_uri AS receiver_wire_account"
+           " FROM coin_deposits cdep"
+           " JOIN batch_deposits bdep USING (batch_deposit_serial_id)"
+           " JOIN known_coins kc ON (kc.coin_pub = cdep.coin_pub)"
+           " JOIN denominations USING (denominations_serial)"
+           " JOIN wire_targets wt USING (wire_target_h_payto)"
+           " WHERE cdep.coin_pub=$1"
+           "   AND bdep.merchant_pub=$3"
+           "   AND bdep.h_contract_terms=$2;");
+  /* Note: query might be made more efficient if we computed the 'shard'
+     from merchant_pub and included that as a constraint on bdep! */
+  qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
+                                                 "get_deposit",
+                                                 params,
+                                                 rs);
+  if (0 >= qs)
+    return qs;
+  TALER_merchant_wire_signature_hash (deposit2.receiver_wire_account,
+                                      &deposit2.wire_salt,
+                                      &h_wire2);
+  GNUNET_free (deposit2.receiver_wire_account);
+  /* Now we check that the other information in @a deposit
+     also matches, and if not report inconsistencies. */
+  if ( (GNUNET_TIME_timestamp_cmp (refund_deadline,
+                                   !=,
+                                   deposit2.refund_deadline)) ||
+       (0 != GNUNET_memcmp (h_wire,
+                            &h_wire2) ) )
+  {
+    /* Inconsistencies detected! Does not match! */
+    return GNUNET_DB_STATUS_SUCCESS_NO_RESULTS;
+  }
+  return GNUNET_DB_STATUS_SUCCESS_ONE_RESULT;
+}