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/**
*
* Response body compression callback function for Ulfius Framework
*
* Copyright 2020 Nicolas Mora <mail@babelouest.org>
*
* Version 20201213
*
* Compress the response body using `deflate` or `gzip` depending on the request header `Accept-Encoding` and the callback configuration.
* The rest of the response, status, headers, cookies won't change.
* After compressing response body, the response header Content-Encoding will be set accordingly.
*
* The MIT License (MIT)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
#ifndef _U_HTTP_COMPRESSION
#define _U_HTTP_COMPRESSION
#define _U_C_BLOCK_SIZE 256
/**
* If both values are set to true, the first compression algorithm used will be gzip
*/
struct _http_compression_config {
int allow_gzip;
int allow_deflate;
};
/**
* Compress response->binary_body using gzip or deflate algorithm
* depending on the request header Accept-Encoding and the
* struct _http_compression_config configuration value
* If user_data is NULL, it will considered as allow_gzip and allow_deflate to true
* After compressing response body, will set response header Content-Encoding accordingly
*/
int callback_http_compression (const struct _u_request * request, struct _u_response * response, void * user_data);
#endif
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