D:/opendownloadmanager/ODM-1.x/vms7zipArchive.cpp

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

#include "stdafx.h"
#include "FdmApp.h"
#include "vms7zipArchive.h"

#pragma warning (disable: 4005 310 244)
#define INITGUID
#include <objbase.h>

#define BoolToBOOL(b) ((BOOL)b)
#define BOOLToBool(b) (0 != b)
#define VARIANT_BOOLToBool(v) (v != VARIANT_FALSE)
#include <archive\Defs.h>
#include <archive\IArchive.h>
#include <archive\FileStreams.h>
#include <archive\FileStreams.cpp>
#include <archive\FileIO.cpp>
#include <archive\MyWindows.cpp>
#include <archive\String.cpp>
#include <archive\StringConvert.cpp>
#include <archive\Vector.cpp>
#include <archive\PropVariant.h>
#include <archive\PropVariant.cpp>
#include <archive\PropVariantConversions.h>
#include <archive\PropVariantConversions.cpp>
#include <archive\IntToString.cpp>
#include "vms7zipArchiveExtractCallback.h"

bool g_IsNT = false;
static bool IsItWindowsNT()
{
  OSVERSIONINFO versionInfo;
  versionInfo.dwOSVersionInfoSize = sizeof(versionInfo);
  if (!::GetVersionEx(&versionInfo)) 
    return false;
  return (versionInfo.dwPlatformId == VER_PLATFORM_WIN32_NT);
}

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif        

vms7zipArchive::vms7zipArchive()
{
        g_IsNT = IsItWindowsNT ();
}

vms7zipArchive::~vms7zipArchive()
{

}

bool vms7zipArchive::Extract(LPCSTR pszArchive, LPCSTR pszOutFolder)
{
        CInFileStream *fileSpec = new CInFileStream;
        CMyComPtr <IInStream> spFile = fileSpec;

        m_errExtract = AEE_GENERIC_ERROR;

        if (false == fileSpec->Open(pszArchive))
                return false;

        CMyComPtr <IInArchive> spArc;

        vms7zipFormatDLL dll;
        if (false == Find7zipDLL (dll, pszArchive, true, spFile, spArc) &&
                        false == Find7zipDLL (dll, pszArchive, false, spFile, spArc))
                return false; 

        m_errExtract = AEE_NO_ERROR;

        char sz [MY_MAX_PATH];
        fsGetFileName (pszArchive, sz);

        vms7zipArchiveExtractCallback aec (spArc, pszOutFolder, m_pAC, sz);
        HRESULT hr;
        if (FAILED (hr=spArc->Extract (NULL, (UInt32)-1, 0, &aec))) {
                spArc = NULL;
                m_errExtract = aec.is_AbortedByUser () ? AEE_ABORTED_BY_USER : AEE_GENERIC_ERROR;
                return false;
        }

        spArc = NULL;

        if (*aec.get_FurtherExtractFile () != 0) {
                
                bool b = Extract (aec.get_FurtherExtractFile (), pszOutFolder);
                DeleteFile (aec.get_FurtherExtractFile ());
                return b;
        }

        return true;
}

bool vms7zipArchive::Find7zipDLL(vms7zipFormatDLL &dll, LPCSTR pszArchive, bool bByExt, CMyComPtr <IInStream> &spFile, CMyComPtr <IInArchive> &spArc)
{
        WIN32_FIND_DATA wfd;
        HANDLE hFind = FindFirstFile ("Archive\\7-zip\\Formats\\*.dll", &wfd);
        if (hFind == INVALID_HANDLE_VALUE)
                return false;

        bool bFound = false;

        do
        {
                CString str = "Archive\\7-zip\\Formats\\"; str += wfd.cFileName;
                if (false == dll.Load (str))
                        continue;
                
                if (bByExt && false == dll.IsSupportedArchive (pszArchive))
                        continue;

                GUID guid;
                if (FAILED (dll.get_GUID (&guid)))
                        continue;

                dll.CreateObject (&guid, &IID_IInArchive, (void**) &spArc);
                if (spArc == NULL)
                        continue;

                spFile->Seek (0, STREAM_SEEK_SET, NULL);

                

                if (spArc->Open (spFile, 0, 0) == S_OK)
                        bFound = true; 
                else
                        spArc = NULL;
        }
        while (bFound == false && FindNextFile (hFind, &wfd));

        FindClose (hFind);

        return bFound;
}

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