D:/opendownloadmanager/ODM-1.x/fsZipArchiveRebuilder.h

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/*
  Free Download Manager Copyright (c) 2003-2007 FreeDownloadManager.ORG
  Open Download Manager Copyright (c) 2008-2010 OpenDownloadManager.ORG
*/    

#if !defined(AFX_FSZIPARCHIVEREBUILDER_H__223E1FEF_5709_4CAD_A80F_FE09EFF660B4__INCLUDED_)
#define AFX_FSZIPARCHIVEREBUILDER_H__223E1FEF_5709_4CAD_A80F_FE09EFF660B4__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif 

#include "fsArchiveRebuilder.h"
#include <fsString.h>

namespace fsArchive
{  

const UINT32 ZIP_LOCALFILEHEADER_SIG    = 0x04034b50;
const UINT32 ZIP_FILEHEADER_SIG                 = 0x02014b50;
const UINT32 ZIP_ENDOFCENTRALDIR_SIG    = 0x06054b50;
const UINT32 ZIP_SPLIT_SIG                              = 0x08074b50;
const UINT32 ZIP_TEMPSPANNINGMARKER_SIG = 0x30304b50;      

const UINT32 ZIP_SFXMAXSIZE                             = 150*1024;     
const UINT32 ZIP_BEGIN_SIG                              = ZIP_LOCALFILEHEADER_SIG;

#pragma pack (push)
#pragma pack (1)

struct fsZipLocalFileHeader
{
        WORD    wExtractVersion;
        WORD    wGenFlags;
        WORD    wCompMethod;
        WORD    wLastModTime;
        WORD    wLastModDate;
        UINT32  uCRC;
        UINT32  uSizeComp;
        UINT32  uSizeUncomp;
        WORD    wFileNameLen;
        WORD    wExtraLen;
};

struct fsZipDataDescriptor
{
        UINT32  uCRC;
        UINT32  uSizeComp;
        UINT32  uSizeUncomp;
};

struct fsZipFileHeader
{
        WORD    wVerMadeBy;
        WORD    wExtractVer;
        WORD    wGenFlags;
        WORD    wCompMethod;
        WORD    wLastModTime;
        WORD    wLastModDate;
        UINT32  uCRC;
        UINT32  uSizeComp;
        UINT32  uSizeUncomp;
        WORD    wFileNameLen;
        WORD    wExtraLen;
        WORD    wFileCommentLen;
        WORD    wDiskNumberStart;
        WORD    wIntFileAttribs;
        UINT32  uExtFileAttribs;
        UINT32  uLocHdrRelOffset;
};

struct fsZipEndOfCentralDirHdr
{
        WORD    wDiskNumber;
        WORD    wDiskNumberWithCDirStart;
        WORD    wcCDirEntries;
        WORD    wcFilesTotal;
        UINT32  uCDirSize;
        UINT32  uStartCDirOffsetWithRespectToStartingDiskNumber;
        WORD    wZipCommentLen;
};  

enum fsZipArchiveRebuilderResult
{
        ZARR_NONSEEKABLEZIP             = ARR_APPRES
};

struct fsZipLocalFile
{
        fsZipLocalFileHeader hdr;
        fsString strFileName;
        LPBYTE pbExtraInfo;
        fsZipDataDescriptor descriptor;
        UINT32 sigAfter;
        fsArchiveFilePosition position;

        fsZipLocalFile () {}

        fsZipLocalFile (fsZipLocalFile& file)
        {
                operator= (file);
        }

        fsZipLocalFile& operator= (fsZipLocalFile& file)
        {
                hdr = file.hdr;
                strFileName = file.strFileName;
                pbExtraInfo = file.pbExtraInfo;
                descriptor = file.descriptor;
                sigAfter = file.sigAfter;
                position = file.position;
                return *this;
        }
};

struct fsZipFile 
{
        fsZipFileHeader hdr;
        fsString strFileName;
        LPBYTE pbExtraInfo;
        fsString strComment;

        fsZipFile () {}

        fsZipFile (fsZipFile& file)
        {
                operator= (file);
        }

        fsZipFile& operator= (fsZipFile& file)
        {
                hdr = file.hdr;
                strFileName = file.strFileName;
                pbExtraInfo = file.pbExtraInfo;
                strComment = file.strComment;
                return *this;
        }
};    

#include "list.h"

class fsZipArchiveRebuilder : public fsArchiveRebuilder  
{
public:
        
        const fsArchiveFilePosition* GetFilePosition (int iFile);
        virtual fsString GetFileName (int iFile);
        virtual int GetFileCount();
        virtual BOOL RebuildArchive (fs::list <fsString> vFileNames);
        fsZipArchiveRebuilder();
        virtual ~fsZipArchiveRebuilder();

protected:
        
        DWORD SaveEndOfCDirRecord();
        DWORD SaveFilesHeaders();
        DWORD SaveLocalFilesHeaders();
        
        virtual DWORD SaveArchiveHeaders_imp();
        
        int FindFile (LPCSTR pszFile, int iProbIndex = -1);
        
        void Free();
        
        void CorrectCDir();
        
        void RemoveFile (int iIndex);
        
        virtual DWORD RetreiveArchiveContent();
        fs::list <fsZipLocalFile> m_vLocalFiles;
        fs::list <fsZipFile> m_vFiles;
        fsZipEndOfCentralDirHdr m_hdrEndOfCDir;
        fsString m_strZipComment;
};

#pragma pack (pop)

};

#endif 

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