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/*
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"
/**
* 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 */
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