ZIPFile.h

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//
// ZIPFile.h
//
// Copyright (c) Shareaza Development Team, 2002-2005.
// This file is part of SHAREAZA (www.shareaza.com)
//
// Shareaza is free software; you can redistribute it
// and/or modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2 of
// the License, or (at your option) any later version.
//
// Shareaza 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Shareaza; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//

#pragma once

class CBuffer;


class CZIPFile
{
// Construction
public:
        CZIPFile(HANDLE hAttach = INVALID_HANDLE_VALUE);
        ~CZIPFile();

// File Class
public:
        class File
        {
        private:
                friend class CZIPFile;
                inline File() {};
                CZIPFile*       m_pZIP;
        public:
                CBuffer*        Decompress();
                BOOL            Extract(LPCTSTR pszFile);
        public:
                CString         m_sName;
                QWORD           m_nSize;
        protected:
                QWORD           m_nLocalOffset;
                QWORD           m_nCompressedSize;
                int                     m_nCompression;
                BOOL            PrepareToDecompress(LPVOID pStream);
        };

// Attributes
protected:
        BOOL    m_bAttach;
        HANDLE  m_hFile;
        File*   m_pFile;
        int             m_nFile;

// Operations
public:
        BOOL    Open(LPCTSTR pszFile);
        BOOL    Attach(HANDLE hFile);
        BOOL    IsOpen() const;
        void    Close();
public:
        int             GetCount() const;
        File*   GetFile(int nFile) const;
        File*   GetFile(LPCTSTR pszFile, BOOL bPartial = FALSE) const;
protected:
        BOOL    LocateCentralDirectory();
        BOOL    ParseCentralDirectory(BYTE* pDirectory, DWORD nDirectory);
        BOOL    SeekToFile(File* pFile);

};

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