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/*
* Copyright (C) 2005-2018 Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#pragma once
#include "File.h"
#include "IFile.h"
#include "ZipManager.h"
#include <zlib.h>
namespace XFILE
{
class CZipFile : public IFile
{
public:
CZipFile();
~CZipFile() override;
int64_t GetPosition() override;
int64_t GetLength() override;
bool Open(const CURL& url) override;
bool Exists(const CURL& url) override;
int Stat(struct __stat64* buffer) override;
int Stat(const CURL& url, struct __stat64* buffer) override;
ssize_t Read(void* lpBuf, size_t uiBufSize) override;
//virtual bool ReadString(char *szLine, int iLineLength);
int64_t Seek(int64_t iFilePosition, int iWhence = SEEK_SET) override;
void Close() override;
//NOTE: gzip doesn't work. use DecompressGzip() instead
int UnpackFromMemory(std::string& strDest, const std::string& strInput, bool isGZ=false);
/*! Decompress gzip encoded buffer in-memory */
static bool DecompressGzip(const std::string& in, std::string& out);
private:
bool InitDecompress();
bool FillBuffer();
void DestroyBuffer(void* lpBuffer, int iBufSize);
CFile mFile;
SZipEntry mZipItem;
int64_t m_iFilePos = 0; // position in _uncompressed_ data read
int64_t m_iZipFilePos = 0; // position in _compressed_ data
int m_iAvailBuffer = 0;
z_stream m_ZStream;
char m_szBuffer[65535]; // 64k buffer for compressed data
char* m_szStringBuffer;
char* m_szStartOfStringBuffer; // never allocated!
size_t m_iDataInStringBuffer;
int m_iRead;
bool m_bFlush = false;
bool m_bCached;
};
}
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