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/*
This file is part of TALER
Copyright (C) 2014 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_mhd.h
* @brief helpers for MHD interaction, used to generate simple responses
* @author Florian Dold
* @author Benedikt Mueller
* @author Christian Grothoff
*/
#ifndef TALER_AUDITOR_HTTPD_MHD_H
#define TALER_AUDITOR_HTTPD_MHD_H
#include <gnunet/gnunet_util_lib.h>
#include <microhttpd.h>
#include "taler-auditor-httpd.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[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_MHD_handler_static_response (struct TAH_RequestHandler *rh,
struct MHD_Connection *connection,
void **connection_cls,
const char *upload_data,
size_t *upload_data_size);
/**
* 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[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_MHD_handler_agpl_redirect (struct TAH_RequestHandler *rh,
struct MHD_Connection *connection,
void **connection_cls,
const char *upload_data,
size_t *upload_data_size);
/**
* Function to call to handle the request by building a JSON
* reply from varargs.
*
* @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 response_code HTTP response code to use
* @param do_cache can the response be cached? (0: no, 1: yes)
* @param fmt format string for pack
* @param ... varargs
* @return MHD result code
*/
int
TAH_MHD_helper_send_json_pack (struct TAH_RequestHandler *rh,
struct MHD_Connection *connection,
void *connection_cls,
int response_code,
int do_cache,
const char *fmt,
...);
/**
* 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[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_MHD_handler_send_json_pack_error (struct TAH_RequestHandler *rh,
struct MHD_Connection *connection,
void **connection_cls,
const char *upload_data,
size_t *upload_data_size);
#endif
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