diff options
Diffstat (limited to 'src/backend/taler-merchant-httpd_refund_lookup.c')
| -rw-r--r-- | src/backend/taler-merchant-httpd_refund_lookup.c | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/src/backend/taler-merchant-httpd_refund_lookup.c b/src/backend/taler-merchant-httpd_refund_lookup.c new file mode 100644 index 00000000..36a6b88f --- /dev/null +++ b/src/backend/taler-merchant-httpd_refund_lookup.c @@ -0,0 +1,143 @@ +/* + This file is part of TALER + (C) 2014-2020 Taler Systems SA + + TALER is free software; you can redistribute it and/or modify it under the + terms of the GNU Affero 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 backend/taler-merchant-httpd_refund_lookup.c + * @brief refund handling logic + * @author Marcello Stanisci + */ +#include "platform.h" +#include <jansson.h> +#include <taler/taler_signatures.h> +#include <taler/taler_json_lib.h> +#include "taler-merchant-httpd.h" +#include "taler-merchant-httpd_refund.h" + +/** + * How often do we retry the non-trivial refund INSERT database + * transaction? + */ +#define MAX_RETRIES 5 + + +/** + * Return refund situation about a contract. + * + * @param rh context of the handler + * @param connection the MHD connection to handle + * @param[in,out] connection_cls the connection's closure (can be updated) + * @param upload_data upload data + * @param[in,out] upload_data_size number of bytes (left) in @a upload_data + * @param mi merchant backend instance, never NULL + * @return MHD result code + */ +int +MH_handler_refund_lookup (struct TMH_RequestHandler *rh, + struct MHD_Connection *connection, + void **connection_cls, + const char *upload_data, + size_t *upload_data_size, + struct MerchantInstance *mi) +{ + const char *order_id; + struct GNUNET_HashCode h_contract_terms; + json_t *contract_terms; + enum GNUNET_DB_QueryStatus qs; + + order_id = MHD_lookup_connection_value (connection, + MHD_GET_ARGUMENT_KIND, + "order_id"); + if (NULL == order_id) + { + GNUNET_break_op (0); + return TALER_MHD_reply_with_error (connection, + MHD_HTTP_BAD_REQUEST, + TALER_EC_PARAMETER_MISSING, + "order_id"); + } + + /* Convert order id to h_contract_terms */ + contract_terms = NULL; + db->preflight (db->cls); + qs = db->find_contract_terms (db->cls, + &contract_terms, + order_id, + &mi->pubkey); + if (0 > qs) + { + /* single, read-only SQL statements should never cause + serialization problems */ + GNUNET_break (GNUNET_DB_STATUS_SOFT_ERROR != qs); + /* Always report on hard error as well to enable diagnostics */ + GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR == qs); + return TALER_MHD_reply_with_error (connection, + MHD_HTTP_INTERNAL_SERVER_ERROR, + TALER_EC_REFUND_LOOKUP_DB_ERROR, + "database error looking up order_id from merchant_contract_terms table"); + } + + if (GNUNET_DB_STATUS_SUCCESS_NO_RESULTS == qs) + { + GNUNET_log (GNUNET_ERROR_TYPE_INFO, + "Unknown order id given: `%s'\n", + order_id); + return TALER_MHD_reply_with_error (connection, + MHD_HTTP_NOT_FOUND, + TALER_EC_REFUND_ORDER_ID_UNKNOWN, + "order_id not found in database"); + } + + if (GNUNET_OK != + TALER_JSON_hash (contract_terms, + &h_contract_terms)) + { + GNUNET_break (0); + json_decref (contract_terms); + return TALER_MHD_reply_with_error (connection, + MHD_HTTP_INTERNAL_SERVER_ERROR, + TALER_EC_INTERNAL_LOGIC_ERROR, + "Could not hash contract terms"); + } + json_decref (contract_terms); + + { + json_t *response; + enum TALER_ErrorCode ec; + const char *errmsg; + + response = TM_get_refund_json (mi, + &h_contract_terms, + &ec, + &errmsg); + if (NULL == response) + return TALER_MHD_reply_with_error (connection, + MHD_HTTP_INTERNAL_SERVER_ERROR, + ec, + errmsg); + return TALER_MHD_reply_json_pack (connection, MHD_HTTP_OK, + "{s:o, s:o, s:o}", + "refund_permissions", + response, + "merchant_pub", + GNUNET_JSON_from_data_auto ( + &mi->pubkey), + "h_contract_terms", + GNUNET_JSON_from_data_auto ( + &h_contract_terms)); + } +} + + +/* end of taler-merchant-httpd_refund_lookup.c */ |