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/*
This file is part of TALER
(C) 2020-2021 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 taler-merchant-httpd_private-get-rewards.c
* @brief implementation of a GET /private/rewards handler
* @author Jonathan Buchanan
*/
#include "platform.h"
#include "taler-merchant-httpd_private-get-rewards.h"
#include <taler/taler_json_lib.h>
/**
* Add reward details to our JSON array.
*
* @param[in,out] cls a `json_t *` JSON array to build
* @param row_id row number of the reward
* @param reward_id ID of the reward
* @param amount the amount of the reward
*/
static void
add_reward (void *cls,
uint64_t row_id,
struct TALER_RewardIdentifierP reward_id,
struct TALER_Amount amount)
{
json_t *pa = cls;
GNUNET_assert (0 ==
json_array_append_new (
pa,
GNUNET_JSON_PACK (
GNUNET_JSON_pack_uint64 ("row_id",
row_id),
GNUNET_JSON_pack_data_auto ("reward_id",
&reward_id),
TALER_JSON_pack_amount ("reward_amount",
&amount))));
}
MHD_RESULT
TMH_private_get_rewards (const struct TMH_RequestHandler *rh,
struct MHD_Connection *connection,
struct TMH_HandlerContext *hc)
{
json_t *pa;
enum GNUNET_DB_QueryStatus qs;
enum TALER_EXCHANGE_YesNoAll expired;
uint64_t offset;
int64_t limit;
(void) rh;
if (! (TALER_arg_to_yna (connection,
"expired",
TALER_EXCHANGE_YNA_NO,
&expired)) )
return TALER_MHD_reply_with_error (connection,
MHD_HTTP_BAD_REQUEST,
TALER_EC_GENERIC_PARAMETER_MALFORMED,
"expired");
{
const char *limit_str;
limit_str = MHD_lookup_connection_value (connection,
MHD_GET_ARGUMENT_KIND,
"limit");
if (NULL == limit_str)
{
limit = -20;
}
else
{
char dummy[2];
long long ll;
if (1 !=
sscanf (limit_str,
"%lld%1s",
&ll,
dummy))
return TALER_MHD_reply_with_error (connection,
MHD_HTTP_BAD_REQUEST,
TALER_EC_GENERIC_PARAMETER_MALFORMED,
"limit");
limit = (uint64_t) ll;
}
}
{
const char *offset_str;
offset_str = MHD_lookup_connection_value (connection,
MHD_GET_ARGUMENT_KIND,
"offset");
if (NULL == offset_str)
{
if (limit > 0)
offset = 0;
else
offset = INT64_MAX;
}
else
{
char dummy[2];
unsigned long long ull;
if (1 !=
sscanf (offset_str,
"%llu%1s",
&ull,
dummy))
return TALER_MHD_reply_with_error (connection,
MHD_HTTP_BAD_REQUEST,
TALER_EC_GENERIC_PARAMETER_MALFORMED,
"offset");
offset = (uint64_t) ull;
}
}
pa = json_array ();
GNUNET_assert (NULL != pa);
qs = TMH_db->lookup_rewards (TMH_db->cls,
hc->instance->settings.id,
expired,
limit,
offset,
&add_reward,
pa);
if (0 > qs)
{
GNUNET_break (0);
json_decref (pa);
return TALER_MHD_reply_with_error (connection,
MHD_HTTP_INTERNAL_SERVER_ERROR,
TALER_EC_GENERIC_DB_FETCH_FAILED,
"rewards");
}
return TALER_MHD_REPLY_JSON_PACK (
connection,
MHD_HTTP_OK,
GNUNET_JSON_pack_array_steal ("rewards",
pa));
}
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