diff options
Diffstat (limited to 'src/backenddb/pg_lookup_refunds_detailed.c')
| -rw-r--r-- | src/backenddb/pg_lookup_refunds_detailed.c | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/src/backenddb/pg_lookup_refunds_detailed.c b/src/backenddb/pg_lookup_refunds_detailed.c new file mode 100644 index 00000000..1b01f4d6 --- /dev/null +++ b/src/backenddb/pg_lookup_refunds_detailed.c @@ -0,0 +1,185 @@ +/* + This file is part of TALER + Copyright (C) 2023 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 backenddb/pg_lookup_refunds_detailed.c + * @brief Implementation of the lookup_refunds_detailed function for Postgres + * @author Iván Ávalos + */ +#include "platform.h" +#include <taler/taler_error_codes.h> +#include <taler/taler_dbevents.h> +#include <taler/taler_pq_lib.h> +#include "pg_lookup_refunds_detailed.h" +#include "pg_helper.h" + +/** + * Closure for #lookup_refunds_detailed_cb(). + */ +struct LookupRefundsDetailedContext +{ + /** + * Function to call for each refund. + */ + TALER_MERCHANTDB_RefundDetailCallback rc; + + /** + * Closure for @e rc. + */ + void *rc_cls; + + /** + * Plugin context. + */ + struct PostgresClosure *pg; + + /** + * Transaction result. + */ + enum GNUNET_DB_QueryStatus qs; +}; + + +/** + * Function to be called with the results of a SELECT statement + * that has returned @a num_results results. + * + * @param cls of type `struct GetRefundsContext *` + * @param result the postgres result + * @param num_results the number of results in @a result + */ +static void +lookup_refunds_detailed_cb (void *cls, + PGresult *result, + unsigned int num_results) +{ + struct LookupRefundsDetailedContext *lrdc = cls; + + for (unsigned int i = 0; i<num_results; i++) + { + uint64_t refund_serial; + struct GNUNET_TIME_Timestamp timestamp; + struct TALER_CoinSpendPublicKeyP coin_pub; + uint64_t rtransaction_id; + struct TALER_Amount refund_amount; + char *reason; + char *exchange_url; + uint8_t pending8; + struct GNUNET_PQ_ResultSpec rs[] = { + GNUNET_PQ_result_spec_uint64 ("refund_serial", + &refund_serial), + GNUNET_PQ_result_spec_timestamp ("refund_timestamp", + ×tamp), + GNUNET_PQ_result_spec_auto_from_type ("coin_pub", + &coin_pub), + GNUNET_PQ_result_spec_string ("exchange_url", + &exchange_url), + GNUNET_PQ_result_spec_uint64 ("rtransaction_id", + &rtransaction_id), + GNUNET_PQ_result_spec_string ("reason", + &reason), + TALER_PQ_result_spec_amount_with_currency ("refund_amount", + &refund_amount), + GNUNET_PQ_result_spec_auto_from_type ("pending", + &pending8), + GNUNET_PQ_result_spec_end + }; + + if (GNUNET_OK != + GNUNET_PQ_extract_result (result, + rs, + i)) + { + GNUNET_break (0); + lrdc->qs = GNUNET_DB_STATUS_HARD_ERROR; + return; + } + lrdc->rc (lrdc->rc_cls, + refund_serial, + timestamp, + &coin_pub, + exchange_url, + rtransaction_id, + reason, + &refund_amount, + 0 != pending8); + GNUNET_PQ_cleanup_result (rs); + } + lrdc->qs = num_results; +} + + +enum GNUNET_DB_QueryStatus +TMH_PG_lookup_refunds_detailed (void *cls, + const char *instance_id, + const struct TALER_PrivateContractHashP *h_contract_terms, + TALER_MERCHANTDB_RefundDetailCallback rc, + void *rc_cls) +{ + struct PostgresClosure *pg = cls; + struct GNUNET_PQ_QueryParam params[] = { + GNUNET_PQ_query_param_string (instance_id), + GNUNET_PQ_query_param_auto_from_type (h_contract_terms), + GNUNET_PQ_query_param_end + }; + struct LookupRefundsDetailedContext lrdc = { + .rc = rc, + .rc_cls = rc_cls, + .pg = pg + }; + enum GNUNET_DB_QueryStatus qs; + + /* no preflight check here, run in transaction by caller! */ + TALER_LOG_DEBUG ("Looking for refund %s + %s\n", + GNUNET_h2s (&h_contract_terms->hash), + instance_id); + + check_connection (pg); + PREPARE (pg, + "lookup_refunds_detailed", + "SELECT" + " ref.refund_serial" + ",ref.refund_timestamp" + ",dep.coin_pub" + ",mcon.exchange_url" + ",ref.rtransaction_id" + ",ref.reason" + ",ref.refund_amount" + ",merchant_refund_proofs.exchange_sig IS NULL AS pending" + " FROM merchant_deposit_confirmations mcon" + " JOIN merchant_deposits dep" + " USING (deposit_confirmation_serial)" + " JOIN merchant_refunds ref" + " USING (order_serial, coin_pub)" + " LEFT JOIN merchant_refund_proofs" + " USING (refund_serial)" + " WHERE mcon.order_serial=" + " (SELECT order_serial" + " FROM merchant_contract_terms" + " WHERE h_contract_terms=$2" + " AND merchant_serial=" + " (SELECT merchant_serial" + " FROM merchant_instances" + " WHERE merchant_id=$1))"); + + qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn, + "lookup_refunds_detailed", + params, + &lookup_refunds_detailed_cb, + &lrdc); + if (0 >= qs) + return qs; + return lrdc.qs; +} |