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Diffstat (limited to 'src/exchangedb/pg_select_withdraw_amounts_for_kyc_check.c')
-rw-r--r--src/exchangedb/pg_select_withdraw_amounts_for_kyc_check.c158
1 files changed, 158 insertions, 0 deletions
diff --git a/src/exchangedb/pg_select_withdraw_amounts_for_kyc_check.c b/src/exchangedb/pg_select_withdraw_amounts_for_kyc_check.c
new file mode 100644
index 000000000..71ed81833
--- /dev/null
+++ b/src/exchangedb/pg_select_withdraw_amounts_for_kyc_check.c
@@ -0,0 +1,158 @@
+/*
+ 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_select_withdraw_amounts_for_kyc_check.c
+ * @brief Implementation of the select_withdraw_amounts_for_kyc_check 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_select_withdraw_amounts_for_kyc_check.h"
+#include "pg_select_aggregation_amounts_for_kyc_check.h"
+#include "pg_helper.h"
+
+
+/**
+ * Closure for #get_kyc_amounts_cb().
+ */
+struct KycAmountCheckContext
+{
+ /**
+ * Function to call per result.
+ */
+ TALER_EXCHANGEDB_KycAmountCallback cb;
+
+ /**
+ * Closure for @e cb.
+ */
+ void *cb_cls;
+
+ /**
+ * Plugin context.
+ */
+ struct PostgresClosure *pg;
+
+ /**
+ * Flag set to #GNUNET_OK as long as everything is fine.
+ */
+ enum GNUNET_GenericReturnValue status;
+
+};
+
+/**
+ * Invoke the callback for each result.
+ *
+ * @param cls a `struct KycAmountCheckContext *`
+ * @param result SQL result
+ * @param num_results number of rows in @a result
+ */
+static void
+get_kyc_amounts_cb (void *cls,
+ PGresult *result,
+ unsigned int num_results)
+{
+ struct KycAmountCheckContext *ctx = cls;
+ struct PostgresClosure *pg = ctx->pg;
+
+ for (unsigned int i = 0; i < num_results; i++)
+ {
+ struct GNUNET_TIME_Absolute date;
+ struct TALER_Amount amount;
+ struct GNUNET_PQ_ResultSpec rs[] = {
+ TALER_PQ_RESULT_SPEC_AMOUNT ("amount",
+ &amount),
+ GNUNET_PQ_result_spec_absolute_time ("date",
+ &date),
+ GNUNET_PQ_result_spec_end
+ };
+ enum GNUNET_GenericReturnValue ret;
+
+ if (GNUNET_OK !=
+ GNUNET_PQ_extract_result (result,
+ rs,
+ i))
+ {
+ GNUNET_break (0);
+ ctx->status = GNUNET_SYSERR;
+ return;
+ }
+ ret = ctx->cb (ctx->cb_cls,
+ &amount,
+ date);
+ GNUNET_PQ_cleanup_result (rs);
+ switch (ret)
+ {
+ case GNUNET_OK:
+ continue;
+ case GNUNET_NO:
+ break;
+ case GNUNET_SYSERR:
+ ctx->status = GNUNET_SYSERR;
+ break;
+ }
+ break;
+ }
+}
+
+
+enum GNUNET_DB_QueryStatus
+TEH_PG_select_withdraw_amounts_for_kyc_check (
+ void *cls,
+ const struct TALER_PaytoHashP *h_payto,
+ struct GNUNET_TIME_Absolute time_limit,
+ TALER_EXCHANGEDB_KycAmountCallback kac,
+ void *kac_cls)
+{
+ struct PostgresClosure *pg = cls;
+ struct GNUNET_PQ_QueryParam params[] = {
+ GNUNET_PQ_query_param_auto_from_type (h_payto),
+ GNUNET_PQ_query_param_absolute_time (&time_limit),
+ GNUNET_PQ_query_param_end
+ };
+ struct KycAmountCheckContext ctx = {
+ .cb = kac,
+ .cb_cls = kac_cls,
+ .pg = pg,
+ .status = GNUNET_OK
+ };
+ enum GNUNET_DB_QueryStatus qs;
+
+ PREPARE (pg,
+ "select_kyc_relevant_withdraw_events",
+ "SELECT"
+ " ro.amount_with_fee AS amount"
+ ",ro.execution_date AS date"
+ " FROM reserves_in ri"
+ " JOIN reserve_history rh"
+ " ON (rh.reserve_pub = ri.reserve_pub)"
+ " JOIN reserves_out ro"
+ " ON (ro.reserve_out_serial_id = rh.serial_id)"
+ " WHERE ri.wire_source_h_payto=$1"
+ " AND rh.table_name='reserves_out'"
+ " AND ro.execution_date >= $2"
+ " ORDER BY rh.reserve_history_serial_id DESC");
+ qs = GNUNET_PQ_eval_prepared_multi_select (
+ pg->conn,
+ "select_kyc_relevant_withdraw_events",
+ params,
+ &get_kyc_amounts_cb,
+ &ctx);
+ if (GNUNET_OK != ctx.status)
+ return GNUNET_DB_STATUS_HARD_ERROR;
+ return qs;
+}