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/*
This file is part of TALER
(C) 2017 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 backend/taler-merchant-httpd_tip-query.c
* @brief implementation of /tip-query handler
* @author Christian Grothoff
* @author Florian Dold
*/
#include "platform.h"
#include <microhttpd.h>
#include <jansson.h>
#include <taler/taler_json_lib.h>
#include <taler/taler_signatures.h>
#include "taler-merchant-httpd.h"
#include "taler-merchant-httpd_mhd.h"
#include "taler-merchant-httpd_parsing.h"
#include "taler-merchant-httpd_exchanges.h"
#include "taler-merchant-httpd_responses.h"
#include "taler-merchant-httpd_tip-query.h"
/**
* Manages a /tip-query call, checking if a tip authorization
* exists and, if so, returning its details.
*
* @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
* @return MHD result code
*/
int
MH_handler_tip_query (struct TMH_RequestHandler *rh,
struct MHD_Connection *connection,
void **connection_cls,
const char *upload_data,
size_t *upload_data_size)
{
const char *tip_id_str;
struct GNUNET_HashCode tip_id;
tip_id_str = MHD_lookup_connection_value (connection,
MHD_GET_ARGUMENT_KIND,
"tip_id");
if (NULL == tip_id_str)
return TMH_RESPONSE_reply_arg_missing (connection,
TALER_EC_PARAMETER_MISSING,
"tip_id");
if (GNUNET_OK != GNUNET_STRINGS_string_to_data (tip_id_str,
strlen (tip_id_str), &tip_id,
sizeof (struct GNUNET_HashCode)))
return TMH_RESPONSE_reply_arg_invalid (connection,
TALER_EC_PARAMETER_MISSING,
"tip_id");
enum GNUNET_DB_QueryStatus qs;
struct TALER_Amount tip_amount;
struct GNUNET_TIME_Absolute tip_timestamp;
char *tip_exchange_uri;
qs = db->lookup_tip_by_id (db->cls,
&tip_id,
&tip_exchange_uri,
&tip_amount,
&tip_timestamp);
if (GNUNET_DB_STATUS_SUCCESS_NO_RESULTS == qs)
{
return TMH_RESPONSE_reply_rc (connection,
MHD_HTTP_NOT_FOUND,
TALER_EC_TIP_QUERY_TIP_ID_UNKNOWN,
"tip id not found");
}
else if (GNUNET_DB_STATUS_SUCCESS_ONE_RESULT == qs)
{
return TMH_RESPONSE_reply_json_pack (connection,
MHD_HTTP_OK,
"{s:s, s:s}",
"exchange", tip_exchange_uri,
"timestamp", GNUNET_JSON_from_time_abs (tip_timestamp),
"amount", TALER_JSON_from_amount (&tip_amount));
}
return TMH_RESPONSE_reply_rc (connection,
MHD_HTTP_INTERNAL_SERVER_ERROR,
TALER_EC_INTERNAL_INVARIANT_FAILURE,
"tip lookup failure");
}
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