diff options
Diffstat (limited to 'src/backenddb/pg_lookup_transfer_details_by_order.c')
| -rw-r--r-- | src/backenddb/pg_lookup_transfer_details_by_order.c | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/src/backenddb/pg_lookup_transfer_details_by_order.c b/src/backenddb/pg_lookup_transfer_details_by_order.c new file mode 100644 index 00000000..6ad07f4a --- /dev/null +++ b/src/backenddb/pg_lookup_transfer_details_by_order.c @@ -0,0 +1,172 @@ +/* + 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_transfer_details_by_order.c + * @brief Implementation of the lookup_transfer_details_by_order 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_transfer_details_by_order.h" +#include "pg_helper.h" + +/** + * Closure for lookup_transfer_details_by_order_cb(). + */ +struct LookupTransferDetailsByOrderContext +{ + + /** + * Plugin context. + */ + struct PostgresClosure *pg; + + /** + * Function to call with all results. + */ + TALER_MERCHANTDB_OrderTransferDetailsCallback cb; + + /** + * Closure for @e cb. + */ + void *cb_cls; + + /** + * Set to the query 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 LookupTransferDetailsByOrderContext *` + * @param result the postgres result + * @param num_results the number of results in @a result + */ +static void +lookup_transfer_details_by_order_cb (void *cls, + PGresult *result, + unsigned int num_results) +{ + struct LookupTransferDetailsByOrderContext *ltdo = cls; + + for (unsigned int i = 0; i<num_results; i++) + { + struct TALER_WireTransferIdentifierRawP wtid; + char *exchange_url; + uint64_t deposit_serial; + struct GNUNET_TIME_Timestamp execution_time; + struct TALER_Amount deposit_value; + struct TALER_Amount deposit_fee; + uint8_t transfer_confirmed; + struct GNUNET_PQ_ResultSpec rs[] = { + GNUNET_PQ_result_spec_uint64 ("deposit_serial", + &deposit_serial), + GNUNET_PQ_result_spec_timestamp ("deposit_timestamp", + &execution_time), + GNUNET_PQ_result_spec_string ("exchange_url", + &exchange_url), + GNUNET_PQ_result_spec_auto_from_type ("wtid", + &wtid), + TALER_PQ_result_spec_amount_with_currency ("exchange_deposit_value", + &deposit_value), + TALER_PQ_result_spec_amount_with_currency ("exchange_deposit_fee", + &deposit_fee), + GNUNET_PQ_result_spec_auto_from_type ("transfer_confirmed", + &transfer_confirmed), + GNUNET_PQ_result_spec_end + }; + + if (GNUNET_OK != + GNUNET_PQ_extract_result (result, + rs, + i)) + { + GNUNET_break (0); + ltdo->qs = GNUNET_DB_STATUS_HARD_ERROR; + return; + } + ltdo->cb (ltdo->cb_cls, + &wtid, + exchange_url, + execution_time, + &deposit_value, + &deposit_fee, + (0 != transfer_confirmed)); + GNUNET_PQ_cleanup_result (rs); /* technically useless here */ + } + ltdo->qs = num_results; +} + + +enum GNUNET_DB_QueryStatus +TMH_PG_lookup_transfer_details_by_order (void *cls, + uint64_t order_serial, + TALER_MERCHANTDB_OrderTransferDetailsCallback cb, + void *cb_cls) +{ + struct PostgresClosure *pg = cls; + struct LookupTransferDetailsByOrderContext ltdo = { + .pg = pg, + .cb = cb, + .cb_cls = cb_cls + }; + struct GNUNET_PQ_QueryParam params[] = { + GNUNET_PQ_query_param_uint64 (&order_serial), + GNUNET_PQ_query_param_end + }; + enum GNUNET_DB_QueryStatus qs; + + check_connection (pg); + PREPARE (pg, + "lookup_transfer_details_by_order", + "SELECT" + " md.deposit_serial" + ",mcon.exchange_url" + ",mt.wtid" + ",mtc.exchange_deposit_value" + ",mtc.exchange_deposit_fee" + ",mcon.deposit_timestamp" + ",mt.confirmed AS transfer_confirmed" + " FROM merchant_transfer_to_coin mtc" + " JOIN merchant_deposits md" + " USING (deposit_serial)" + " JOIN merchant_deposit_confirmations mcon" + " USING (deposit_confirmation_serial)" + " JOIN merchant_transfers mt" + " USING (credit_serial)" + " JOIN merchant_accounts acc" + " ON (acc.account_serial = mt.account_serial)" + /* Check that all this is for the same instance */ + " JOIN merchant_contract_terms contracts" + " USING (merchant_serial, order_serial)" + " WHERE mcon.order_serial=$1"); + + qs = GNUNET_PQ_eval_prepared_multi_select ( + pg->conn, + "lookup_transfer_details_by_order", + params, + &lookup_transfer_details_by_order_cb, + <do); + if (qs < 0) + return qs; + return ltdo.qs; +} |