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-rw-r--r--src/exchangedb/pg_select_recoup_refresh_above_serial_id.c203
1 files changed, 203 insertions, 0 deletions
diff --git a/src/exchangedb/pg_select_recoup_refresh_above_serial_id.c b/src/exchangedb/pg_select_recoup_refresh_above_serial_id.c
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index 000000000..22f906738
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+++ b/src/exchangedb/pg_select_recoup_refresh_above_serial_id.c
@@ -0,0 +1,203 @@
+/*
+ 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_recoup_refresh_above_serial_id.c
+ * @brief Implementation of the select_recoup_refresh_above_serial_id 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_recoup_refresh_above_serial_id.h"
+#include "pg_helper.h"
+
+
+/**
+ * Closure for #recoup_refresh_serial_helper_cb().
+ */
+struct RecoupRefreshSerialContext
+{
+
+ /**
+ * Callback to call.
+ */
+ TALER_EXCHANGEDB_RecoupRefreshCallback cb;
+
+ /**
+ * Closure for @e cb.
+ */
+ void *cb_cls;
+
+ /**
+ * Plugin context.
+ */
+ struct PostgresClosure *pg;
+
+ /**
+ * Status code, set to #GNUNET_SYSERR on hard errors.
+ */
+ enum GNUNET_GenericReturnValue status;
+};
+
+
+/**
+ * Helper function to be called with the results of a SELECT statement
+ * that has returned @a num_results results.
+ *
+ * @param cls closure of type `struct RecoupRefreshSerialContext`
+ * @param result the postgres result
+ * @param num_results the number of results in @a result
+ */
+static void
+recoup_refresh_serial_helper_cb (void *cls,
+ PGresult *result,
+ unsigned int num_results)
+{
+ struct RecoupRefreshSerialContext *psc = cls;
+ struct PostgresClosure *pg = psc->pg;
+
+ for (unsigned int i = 0; i<num_results; i++)
+ {
+ uint64_t rowid;
+ struct TALER_CoinSpendPublicKeyP old_coin_pub;
+ struct TALER_CoinPublicInfo coin;
+ struct TALER_CoinSpendSignatureP coin_sig;
+ union GNUNET_CRYPTO_BlindingSecretP coin_blind;
+ struct TALER_DenominationPublicKey denom_pub;
+ struct TALER_DenominationHashP old_denom_pub_hash;
+ struct TALER_Amount amount;
+ struct TALER_BlindedCoinHashP h_blind_ev;
+ struct GNUNET_TIME_Timestamp timestamp;
+ struct GNUNET_PQ_ResultSpec rs[] = {
+ GNUNET_PQ_result_spec_uint64 ("recoup_refresh_uuid",
+ &rowid),
+ GNUNET_PQ_result_spec_timestamp ("recoup_timestamp",
+ &timestamp),
+ GNUNET_PQ_result_spec_auto_from_type ("old_coin_pub",
+ &old_coin_pub),
+ GNUNET_PQ_result_spec_auto_from_type ("old_denom_pub_hash",
+ &old_denom_pub_hash),
+ GNUNET_PQ_result_spec_auto_from_type ("coin_pub",
+ &coin.coin_pub),
+ GNUNET_PQ_result_spec_auto_from_type ("coin_sig",
+ &coin_sig),
+ GNUNET_PQ_result_spec_auto_from_type ("coin_blind",
+ &coin_blind),
+ TALER_PQ_result_spec_denom_pub ("denom_pub",
+ &denom_pub),
+ GNUNET_PQ_result_spec_auto_from_type ("h_blind_ev",
+ &h_blind_ev),
+ GNUNET_PQ_result_spec_auto_from_type ("denom_pub_hash",
+ &coin.denom_pub_hash),
+ GNUNET_PQ_result_spec_allow_null (
+ GNUNET_PQ_result_spec_auto_from_type ("age_commitment_hash",
+ &coin.h_age_commitment),
+ &coin.no_age_commitment),
+ TALER_PQ_result_spec_denom_sig ("denom_sig",
+ &coin.denom_sig),
+ TALER_PQ_RESULT_SPEC_AMOUNT ("amount",
+ &amount),
+ GNUNET_PQ_result_spec_end
+ };
+ enum GNUNET_GenericReturnValue ret;
+
+ if (GNUNET_OK !=
+ GNUNET_PQ_extract_result (result,
+ rs,
+ i))
+ {
+ GNUNET_break (0);
+ psc->status = GNUNET_SYSERR;
+ return;
+ }
+ ret = psc->cb (psc->cb_cls,
+ rowid,
+ timestamp,
+ &amount,
+ &old_coin_pub,
+ &old_denom_pub_hash,
+ &coin,
+ &denom_pub,
+ &coin_sig,
+ &coin_blind);
+ GNUNET_PQ_cleanup_result (rs);
+ if (GNUNET_OK != ret)
+ break;
+ }
+}
+
+
+enum GNUNET_DB_QueryStatus
+TEH_PG_select_recoup_refresh_above_serial_id (
+ void *cls,
+ uint64_t serial_id,
+ TALER_EXCHANGEDB_RecoupRefreshCallback cb,
+ void *cb_cls)
+{
+ struct PostgresClosure *pg = cls;
+ struct GNUNET_PQ_QueryParam params[] = {
+ GNUNET_PQ_query_param_uint64 (&serial_id),
+ GNUNET_PQ_query_param_end
+ };
+ struct RecoupRefreshSerialContext psc = {
+ .cb = cb,
+ .cb_cls = cb_cls,
+ .pg = pg,
+ .status = GNUNET_OK
+ };
+ enum GNUNET_DB_QueryStatus qs;
+
+ PREPARE (pg,
+ "recoup_refresh_get_incr",
+ "SELECT"
+ " recoup_refresh_uuid"
+ ",recoup_timestamp"
+ ",old_coins.coin_pub AS old_coin_pub"
+ ",new_coins.age_commitment_hash"
+ ",old_denoms.denom_pub_hash AS old_denom_pub_hash"
+ ",new_coins.coin_pub As coin_pub"
+ ",coin_sig"
+ ",coin_blind"
+ ",new_denoms.denom_pub AS denom_pub"
+ ",rrc.h_coin_ev AS h_blind_ev"
+ ",new_denoms.denom_pub_hash"
+ ",new_coins.denom_sig AS denom_sig"
+ ",amount"
+ " FROM recoup_refresh"
+ " INNER JOIN refresh_revealed_coins rrc"
+ " USING (rrc_serial)"
+ " INNER JOIN refresh_commitments rfc"
+ " ON (rrc.melt_serial_id = rfc.melt_serial_id)"
+ " INNER JOIN known_coins old_coins"
+ " ON (rfc.old_coin_pub = old_coins.coin_pub)"
+ " INNER JOIN known_coins new_coins"
+ " ON (new_coins.coin_pub = recoup_refresh.coin_pub)"
+ " INNER JOIN denominations new_denoms"
+ " ON (new_coins.denominations_serial = new_denoms.denominations_serial)"
+ " INNER JOIN denominations old_denoms"
+ " ON (old_coins.denominations_serial = old_denoms.denominations_serial)"
+ " WHERE recoup_refresh_uuid>=$1"
+ " ORDER BY recoup_refresh_uuid ASC;");
+ qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
+ "recoup_refresh_get_incr",
+ params,
+ &recoup_refresh_serial_helper_cb,
+ &psc);
+ if (GNUNET_OK != psc.status)
+ return GNUNET_DB_STATUS_HARD_ERROR;
+ return qs;
+}