From 945821cbc842644f9d10de4ef36e8ef03d2d2253 Mon Sep 17 00:00:00 2001
From: Joseph <Joseph.xu@efrei.net>
Date: Thu, 10 Nov 2022 10:37:28 -0500
Subject: move few more functions

---
 src/exchangedb/pg_insert_contract.c | 93 +++++++++++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100644 src/exchangedb/pg_insert_contract.c

(limited to 'src/exchangedb/pg_insert_contract.c')

diff --git a/src/exchangedb/pg_insert_contract.c b/src/exchangedb/pg_insert_contract.c
new file mode 100644
index 000000000..d3e6c23be
--- /dev/null
+++ b/src/exchangedb/pg_insert_contract.c
@@ -0,0 +1,93 @@
+/*
+   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_insert_contract.c
+ * @brief Implementation of the insert_contract 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_insert_contract.h"
+#include "pg_select_contract_by_purse.h"
+#include "pg_helper.h"
+
+enum GNUNET_DB_QueryStatus
+TEH_PG_insert_contract (
+  void *cls,
+  const struct TALER_PurseContractPublicKeyP *purse_pub,
+  const struct TALER_EncryptedContract *econtract,
+  bool *in_conflict)
+{
+  struct PostgresClosure *pg = cls;
+  enum GNUNET_DB_QueryStatus qs;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (purse_pub),
+    GNUNET_PQ_query_param_auto_from_type (&econtract->contract_pub),
+    GNUNET_PQ_query_param_fixed_size (econtract->econtract,
+                                      econtract->econtract_size),
+    GNUNET_PQ_query_param_auto_from_type (&econtract->econtract_sig),
+    GNUNET_PQ_query_param_end
+  };
+
+  *in_conflict = false;
+   /* Used in #postgres_insert_contract() */
+  PREPARE (pg,
+      "insert_contract",
+      "INSERT INTO contracts"
+      "  (purse_pub"
+      "  ,pub_ckey"
+      "  ,e_contract"
+      "  ,contract_sig"
+      "  ,purse_expiration"
+      "  ) SELECT "
+      "  $1, $2, $3, $4, purse_expiration"
+      "  FROM purse_requests"
+      "  WHERE purse_pub=$1"
+      "  ON CONFLICT DO NOTHING;");
+  qs = GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                           "insert_contract",
+                                           params);
+  if (GNUNET_DB_STATUS_SUCCESS_NO_RESULTS != qs)
+    return qs;
+  {
+    struct TALER_EncryptedContract econtract2;
+
+    qs = TEH_PG_select_contract_by_purse (pg,
+                                            purse_pub,
+                                            &econtract2);
+    if (GNUNET_DB_STATUS_SUCCESS_ONE_RESULT != qs)
+    {
+      GNUNET_break (0);
+      return GNUNET_DB_STATUS_HARD_ERROR;
+    }
+    if ( (0 == GNUNET_memcmp (&econtract->contract_pub,
+                              &econtract2.contract_pub)) &&
+         (econtract2.econtract_size ==
+          econtract->econtract_size) &&
+         (0 == memcmp (econtract2.econtract,
+                       econtract->econtract,
+                       econtract->econtract_size)) )
+    {
+      GNUNET_free (econtract2.econtract);
+      return GNUNET_DB_STATUS_SUCCESS_NO_RESULTS;
+    }
+    GNUNET_free (econtract2.econtract);
+    *in_conflict = true;
+    return GNUNET_DB_STATUS_SUCCESS_ONE_RESULT;
+  }
+}
-- 
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