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-/*
- This file is part of TALER
- Copyright (C) 2014 GNUnet e.V.
-
- 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_responses.h
- * @brief API for generating generic replies of the auditor; these
- * functions are called TAH_RESPONSE_reply_ and they generate
- * and queue MHD response objects for a given connection.
- * @author Florian Dold
- * @author Benedikt Mueller
- * @author Christian Grothoff
- */
-#ifndef TALER_AUDITOR_HTTPD_RESPONSES_H
-#define TALER_AUDITOR_HTTPD_RESPONSES_H
-#include <gnunet/gnunet_util_lib.h>
-#include <jansson.h>
-#include <microhttpd.h>
-#include <pthread.h>
-#include "taler_error_codes.h"
-#include "taler-auditor-httpd.h"
-
-
-/**
- * Add headers we want to return in every response.
- * Useful for testing, like if we want to always close
- * connections.
- *
- * @param response response to modify
- */
-void
-TAH_RESPONSE_add_global_headers (struct MHD_Response *response);
-
-
-/**
- * Try to compress a response body. Updates @a buf and @a buf_size.
- *
- * @param[in,out] buf pointer to body to compress
- * @param[in,out] buf_size pointer to initial size of @a buf
- * @return #MHD_YES if @a buf was compressed
- */
-int
-TAH_RESPONSE_body_compress (void **buf,
- size_t *buf_size);
-
-
-/**
- * Is HTTP body deflate compression supported by the client?
- *
- * @param connection connection to check
- * @return #MHD_YES if 'deflate' compression is allowed
- */
-int
-TAH_RESPONSE_can_compress (struct MHD_Connection *connection);
-
-
-/**
- * Send JSON object as response.
- *
- * @param connection the MHD connection
- * @param json the json object
- * @param response_code the http response code
- * @return MHD result code
- */
-int
-TAH_RESPONSE_reply_json (struct MHD_Connection *connection,
- const json_t *json,
- unsigned int response_code);
-
-
-/**
- * Function to call to handle the request by building a JSON
- * reply from a format string and varargs.
- *
- * @param connection the MHD connection to handle
- * @param response_code HTTP response code to use
- * @param fmt format string for pack
- * @param ... varargs
- * @return MHD result code
- */
-int
-TAH_RESPONSE_reply_json_pack (struct MHD_Connection *connection,
- unsigned int response_code,
- const char *fmt,
- ...);
-
-
-/**
- * Send a response indicating an invalid signature.
- *
- * @param connection the MHD connection to use
- * @param ec error code uniquely identifying the error
- * @param param_name the parameter that is invalid
- * @return a MHD result code
- */
-int
-TAH_RESPONSE_reply_signature_invalid (struct MHD_Connection *connection,
- enum TALER_ErrorCode ec,
- const char *param_name);
-
-
-/**
- * Send a response indicating an invalid argument.
- *
- * @param connection the MHD connection to use
- * @param ec error code uniquely identifying the error
- * @param param_name the parameter that is invalid
- * @return MHD result code
- */
-int
-TAH_RESPONSE_reply_arg_invalid (struct MHD_Connection *connection,
- enum TALER_ErrorCode ec,
- const char *param_name);
-
-
-/**
- * Send a response indicating an argument refering to a
- * resource unknown to the auditor (i.e. unknown reserve or
- * denomination key).
- *
- * @param connection the MHD connection to use
- * @param ec error code uniquely identifying the error
- * @param param_name the parameter that is invalid
- * @return a MHD result code
- */
-int
-TAH_RESPONSE_reply_arg_unknown (struct MHD_Connection *connection,
- enum TALER_ErrorCode ec,
- const char *param_name);
-
-
-/**
- * Send a response indicating a missing argument.
- *
- * @param connection the MHD connection to use
- * @param ec error code uniquely identifying the error
- * @param param_name the parameter that is missing
- * @return a MHD result code
- */
-int
-TAH_RESPONSE_reply_arg_missing (struct MHD_Connection *connection,
- enum TALER_ErrorCode ec,
- const char *param_name);
-
-
-/**
- * Send a response indicating permission denied.
- *
- * @param connection the MHD connection to use
- * @param ec error code uniquely identifying the error
- * @param hint hint about why access was denied
- * @return a MHD result code
- */
-int
-TAH_RESPONSE_reply_permission_denied (struct MHD_Connection *connection,
- enum TALER_ErrorCode ec,
- const char *hint);
-
-
-/**
- * Send a response indicating an internal error.
- *
- * @param connection the MHD connection to use
- * @param ec error code uniquely identifying the error
- * @param hint hint about the internal error's nature
- * @return a MHD result code
- */
-int
-TAH_RESPONSE_reply_internal_error (struct MHD_Connection *connection,
- enum TALER_ErrorCode ec,
- const char *hint);
-
-
-/**
- * Send a response indicating an external error.
- *
- * @param connection the MHD connection to use
- * @param ec error code uniquely identifying the error
- * @param hint hint about the error's nature
- * @return a MHD result code
- */
-int
-TAH_RESPONSE_reply_external_error (struct MHD_Connection *connection,
- enum TALER_ErrorCode ec,
- const char *hint);
-
-
-/**
- * Send a response indicating an error committing a
- * transaction (concurrent interference).
- *
- * @param connection the MHD connection to use
- * @param ec error code uniquely identifying the error
- * @return a MHD result code
- */
-int
-TAH_RESPONSE_reply_commit_error (struct MHD_Connection *connection,
- enum TALER_ErrorCode ec);
-
-/**
- * Send a response indicating a failure to talk to the Auditor's
- * database.
- *
- * @param connection the MHD connection to use
- * @param ec error code uniquely identifying the error
- * @return a MHD result code
- */
-int
-TAH_RESPONSE_reply_internal_db_error (struct MHD_Connection *connection,
- enum TALER_ErrorCode ec);
-
-
-/**
- * Send a response indicating that the request was too big.
- *
- * @param connection the MHD connection to use
- * @return a MHD result code
- */
-int
-TAH_RESPONSE_reply_request_too_large (struct MHD_Connection *connection);
-
-
-/**
- * Send a response indicating that the JSON was malformed.
- *
- * @param connection the MHD connection to use
- * @return a MHD result code
- */
-int
-TAH_RESPONSE_reply_invalid_json (struct MHD_Connection *connectionx);
-
-
-#endif