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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-exchange-httpd_mhd.c
* @brief helpers for MHD interaction; these are TALER_EXCHANGE_handler_ functions
* that generate simple MHD replies that do not require any real operations
* to be performed (error handling, static pages, etc.)
* @author Florian Dold
* @author Benedikt Mueller
* @author Christian Grothoff
*/
#include "platform.h"
#include <gnunet/gnunet_util_lib.h>
#include <jansson.h>
#include <microhttpd.h>
#include <pthread.h>
#include "taler_mhd_lib.h"
#include "taler-exchange-httpd_responses.h"
#include "taler-exchange-httpd.h"
#include "taler-exchange-httpd_mhd.h"
/**
* Function to call to handle the request by sending
* back static data from the @a rh.
*
* @param rh context of the handler
* @param connection the MHD connection to handle
* @param args array of additional options (must be empty for this function)
* @return MHD result code
*/
int
TEH_MHD_handler_static_response (const struct TEH_RequestHandler *rh,
struct MHD_Connection *connection,
const char *const args[])
{
struct MHD_Response *response;
int ret;
size_t dlen;
(void) args;
dlen = (0 == rh->data_size)
? strlen ((const char *) rh->data)
: rh->data_size;
response = MHD_create_response_from_buffer (dlen,
(void *) rh->data,
MHD_RESPMEM_PERSISTENT);
if (NULL == response)
{
GNUNET_break (0);
return MHD_NO;
}
TALER_MHD_add_global_headers (response);
if (NULL != rh->mime_type)
(void) MHD_add_response_header (response,
MHD_HTTP_HEADER_CONTENT_TYPE,
rh->mime_type);
ret = MHD_queue_response (connection,
rh->response_code,
response);
MHD_destroy_response (response);
return ret;
}
/**
* Function to call to handle the request by sending
* back a redirect to the AGPL source code.
*
* @param rh context of the handler
* @param connection the MHD connection to handle
* @param args array of additional options (must be empty for this function)
* @return MHD result code
*/
int
TEH_MHD_handler_agpl_redirect (const struct TEH_RequestHandler *rh,
struct MHD_Connection *connection,
const char *const args[])
{
(void) rh;
(void) args;
return TALER_MHD_reply_agpl (connection,
"http://www.git.taler.net/?p=exchange.git");
}
/**
* Function to call to handle the request by building a JSON
* reply with an error message from @a rh.
*
* @param rh context of the handler
* @param connection the MHD connection to handle
* @param args array of additional options (must be empty for this function)
* @return MHD result code
*/
int
TEH_MHD_handler_send_json_pack_error (const struct TEH_RequestHandler *rh,
struct MHD_Connection *connection,
const char *const args[])
{
(void) args;
return TALER_MHD_reply_with_error (connection,
rh->response_code,
TALER_EC_METHOD_INVALID,
rh->data);
}
/* end of taler-exchange-httpd_mhd.c */
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