133 lines
4.7 KiB
C
133 lines
4.7 KiB
C
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/*
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This file is part of TALER
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(C) 2014 GNUnet e.V.
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TALER is free software; you can redistribute it and/or modify it under the
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terms of the GNU Affero General Public License as published by the Free Software
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Foundation; either version 3, or (at your option) any later version.
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TALER is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License along with
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TALER; see the file COPYING. If not, If not, see <http://www.gnu.org/licenses/>
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*/
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/**
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* @file taler-mint-httpd_mhd.h
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* @brief helpers for MHD interaction
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* @author Florian Dold
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* @author Benedikt Mueller
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* @author Christian Grothoff
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*/
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#ifndef TALER_MINT_HTTPD_MHD_H
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#define TALER_MINT_HTTPD_MHD_H
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#include <gnunet/gnunet_util_lib.h>
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#include <microhttpd.h>
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#include "taler-mint-httpd.h"
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/**
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* Function to call to handle the request by sending
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* back static data from the @a rh.
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*
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* @param rh context of the handler
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* @param connection the MHD connection to handle
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* @param[IN|OUT] connection_cls the connection's closure (can be updated)
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* @param upload_data upload data
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* @param[IN|OUT] upload_data_size number of bytes (left) in @a upload_data
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* @return MHD result code
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*/
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int
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TALER_MINT_handler_static_response (struct RequestHandler *rh,
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struct MHD_Connection *connection,
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void **connection_cls,
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const char *upload_data,
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size_t *upload_data_size);
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/**
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* Function to call to handle the request by sending
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* back a redirect to the AGPL source code.
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*
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* @param rh context of the handler
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* @param connection the MHD connection to handle
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* @param[IN|OUT] connection_cls the connection's closure (can be updated)
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* @param upload_data upload data
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* @param[IN|OUT] upload_data_size number of bytes (left) in @a upload_data
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* @return MHD result code
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*/
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int
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TALER_MINT_handler_agpl_redirect (struct RequestHandler *rh,
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struct MHD_Connection *connection,
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void **connection_cls,
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const char *upload_data,
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size_t *upload_data_size);
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/**
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* Function to call to handle the request by building a JSON
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* reply from varargs.
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*
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* @param rh context of the handler
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* @param connection the MHD connection to handle
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* @param[IN|OUT] connection_cls the connection's closure (can be updated)
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* @param response_code HTTP response code to use
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* @param do_cache can the response be cached? (0: no, 1: yes)
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* @param fmt format string for pack
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* @param ... varargs
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* @return MHD result code
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*/
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int
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TALER_MINT_helper_send_json_pack (struct RequestHandler *rh,
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struct MHD_Connection *connection,
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void *connection_cls,
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int response_code,
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int do_cache,
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const char *fmt,
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...);
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/**
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* Function to call to handle the request by building a JSON
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* reply with an error message from @a rh.
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*
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* @param rh context of the handler
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* @param connection the MHD connection to handle
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* @param[IN|OUT] connection_cls the connection's closure (can be updated)
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* @param upload_data upload data
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* @param[IN|OUT] upload_data_size number of bytes (left) in @a upload_data
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* @return MHD result code
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*/
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int
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TALER_MINT_handler_send_json_pack_error (struct RequestHandler *rh,
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struct MHD_Connection *connection,
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void **connection_cls,
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const char *upload_data,
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size_t *upload_data_size);
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/**
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* Extraxt base32crockford encoded data from request.
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*
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* Queues an error response to the connection if the parameter is missing or
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* invalid.
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*
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* @param connection the MHD connection
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* @param param_name the name of the parameter with the key
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* @param[out] out_data pointer to store the result
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* @param out_size expected size of data
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* @return
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* GNUNET_YES if the the argument is present
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* GNUNET_NO if the argument is absent or malformed
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* GNUNET_SYSERR on internal error (error response could not be sent)
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*/
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int
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TALER_MINT_mhd_request_arg_data (struct MHD_Connection *connection,
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const char *param_name,
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void *out_data,
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size_t out_size);
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#endif
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