IXWebSocket/ixwebsocket/IXWebSocketPerMessageDeflateCodec.h

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2019-01-05 02:28:13 +01:00
/*
* IXWebSocketPerMessageDeflateCodec.h
* Author: Benjamin Sergeant
* Copyright (c) 2018-2019 Machine Zone, Inc. All rights reserved.
*/
#pragma once
#include "zlib.h"
#include <string>
#include <memory>
namespace ix
{
class WebSocketPerMessageDeflateCompressor
{
public:
WebSocketPerMessageDeflateCompressor();
~WebSocketPerMessageDeflateCompressor();
bool init(uint8_t deflateBits, bool clientNoContextTakeOver);
bool compress(const std::string& in, std::string& out);
private:
static bool endsWith(const std::string& value, const std::string& ending);
int _flush;
size_t _compressBufferSize;
std::unique_ptr<unsigned char[]> _compressBuffer;
z_stream _deflateState;
};
class WebSocketPerMessageDeflateDecompressor
{
public:
WebSocketPerMessageDeflateDecompressor();
~WebSocketPerMessageDeflateDecompressor();
bool init(uint8_t inflateBits, bool clientNoContextTakeOver);
bool decompress(const std::string& in, std::string& out);
private:
int _flush;
size_t _compressBufferSize;
std::unique_ptr<unsigned char[]> _compressBuffer;
z_stream _inflateState;
};
}