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/*
This file is part of TALER
Copyright (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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License along with
TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
/**
* @file taler-auditor-httpd_exchanges.c
* @brief Handle /exchanges requests; returns list of exchanges we audit
* @author Christian Grothoff
*/
#include "platform.h"
#include <gnunet/gnunet_util_lib.h>
#include <gnunet/gnunet_json_lib.h>
#include <jansson.h>
#include <microhttpd.h>
#include <pthread.h>
#include "taler_json_lib.h"
#include "taler_mhd_lib.h"
#include "taler-auditor-httpd.h"
#include "taler-auditor-httpd_exchanges.h"
/**
* Add exchange information to the list.
*
* @param[in,out] cls a `json_t *` array to extend
* @param master_pub master public key of an exchange
* @param exchange_url base URL of an exchange
*/
static void
add_exchange (void *cls,
const struct TALER_MasterPublicKeyP *master_pub,
const char *exchange_url)
{
json_t *list = cls;
json_t *obj;
obj = json_pack ("{s:o, s:s}",
"master_pub",
GNUNET_JSON_from_data_auto (master_pub),
"exchange_url",
exchange_url);
GNUNET_assert (NULL != obj);
GNUNET_assert (0 ==
json_array_append_new (list,
obj));
}
/**
* Handle a "/exchanges" request.
*
* @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
TAH_EXCHANGES_handler (struct TAH_RequestHandler *rh,
struct MHD_Connection *connection,
void **connection_cls,
const char *upload_data,
size_t *upload_data_size)
{
json_t *ja;
struct TALER_AUDITORDB_Session *session;
enum GNUNET_DB_QueryStatus qs;
(void) rh;
(void) connection_cls;
(void) upload_data;
(void) upload_data_size;
session = TAH_plugin->get_session (TAH_plugin->cls);
if (NULL == session)
{
GNUNET_break (0);
return TALER_MHD_reply_with_error (connection,
MHD_HTTP_INTERNAL_SERVER_ERROR,
TALER_EC_DB_SETUP_FAILED,
"failed to establish session with database");
}
ja = json_array ();
qs = TAH_plugin->list_exchanges (TAH_plugin->cls,
session,
&add_exchange,
ja);
if (0 > qs)
{
GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR == qs);
json_decref (ja);
TALER_LOG_WARNING ("Failed to handle /exchanges in database\n");
return TALER_MHD_reply_with_error (connection,
MHD_HTTP_INTERNAL_SERVER_ERROR,
TALER_EC_LIST_EXCHANGES_DB_ERROR,
"Could not fetch exchange list from database");
}
return TALER_MHD_reply_json_pack (connection,
MHD_HTTP_OK,
"{s:o}",
"exchanges", ja);
}
/* end of taler-auditor-httpd_exchanges.c */
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