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/*
This file is part of TALER
(C) 2019 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_config.c
* @brief implement API for querying configuration data of the backend
* @author Florian Dold
*/
#include "platform.h"
#include <jansson.h>
#include <taler/taler_util.h>
#include <taler/taler_json_lib.h>
#include "taler-merchant-httpd.h"
#include "taler-merchant-httpd_mhd.h"
#include "taler-merchant-httpd_exchanges.h"
#include "taler-merchant-httpd_tip-query.h"
#include "taler-merchant-httpd_tip-reserve-helper.h"
/**
* Taler protocol version in the format CURRENT:REVISION:AGE
* as used by GNU libtool. See
* https://www.gnu.org/software/libtool/manual/html_node/Libtool-versioning.html
*
* Please be very careful when updating and follow
* https://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html#Updating-version-info
* precisely. Note that this version has NOTHING to do with the
* release version, and the format is NOT the same that semantic
* versioning uses either.
*
* When changing this version, you likely want to also update
* #MERCHANT_PROTOCOL_CURRENT and #MERCHANT_PROTOCOL_AGE in
* merchant_api_config.c!
*/
#define MERCHANT_PROTOCOL_VERSION "0:0:0"
static int
add_instance (void *cls,
const struct GNUNET_HashCode *key,
void *value)
{
json_t *ja = cls;
struct MerchantInstance *mi = value;
char *url;
GNUNET_asprintf (&url,
"/%s/",
mi->id);
GNUNET_assert (0 ==
json_array_append_new (
ja,
json_pack (
(NULL != mi->tip_exchange)
? "{s:s, s:s, s:o, s:s}"
: "{s:s, s:s, s:o}",
"name",
mi->name,
"backend_base_url",
url,
"merchant_pub",
GNUNET_JSON_from_data_auto (&mi->pubkey),
/* optional: */
"tipping_exchange_baseurl",
mi->tip_exchange)));
GNUNET_free (url);
return GNUNET_OK;
}
/**
* Handle a "/config" 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
* @param mi merchant backend instance, never NULL
* @return MHD result code
*/
MHD_RESULT
MH_handler_config (struct TMH_RequestHandler *rh,
struct MHD_Connection *connection,
void **connection_cls,
const char *upload_data,
size_t *upload_data_size,
struct MerchantInstance *mi)
{
static struct MHD_Response *response;
(void) rh;
(void) connection_cls;
(void) upload_data;
(void) upload_data_size;
(void) mi;
if (NULL == response)
{
json_t *ia;
ia = json_array ();
GNUNET_assert (NULL != ia);
GNUNET_CONTAINER_multihashmap_iterate (by_id_map,
&add_instance,
ia);
response = TALER_MHD_make_json_pack ("{s:s, s:s, s:o}",
"currency", TMH_currency,
"version", MERCHANT_PROTOCOL_VERSION,
"instances", ia);
}
return MHD_queue_response (connection,
MHD_HTTP_OK,
response);
}
/* end of taler-merchant-httpd_config.c */
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