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// LzhHandler.cpp
#include "StdAfx.h"
#include "Common/Defs.h"
#include "Common/StringConvert.h"
#include "Common/ComTry.h"
#include "Windows/Time.h"
#include "Windows/PropVariant.h"
#include "LzhHandler.h"
#include "LzhOutStreamWithCRC.h"
#include "../../ICoder.h"
#include "../../Common/ProgressUtils.h"
#include "../../Common/LimitedStreams.h"
#include "../../Compress/Copy/CopyCoder.h"
#include "../../Compress/Lzh/LzhDecoder.h"
#include "../Common/ItemNameUtils.h"
using namespace NWindows;
using namespace NTime;
namespace NArchive {
namespace NLzh{
struct COsPair
{
Byte Id;
const wchar_t *Name;
};
COsPair g_OsPairs[] =
{
{ 'M', L"MS-DOS" },
{ '2', L"OS/2" },
{ '9', L"OS9" },
{ 'K', L"OS/68K" },
{ '3', L"OS/386" },
{ 'H', L"HUMAN" },
{ 'U', L"UNIX" },
{ 'C', L"CP/M" },
{ 'F', L"FLEX" },
{ 'm', L"Mac" },
{ 'R', L"Runser" },
{ 'T', L"TownsOS" },
{ 'X', L"XOSK" },
{ 'w', L"Windows95" },
{ 'W', L"WindowsNT" },
{ 0, L"MS-DOS" },
{ 'J', L"Java VM" }
};
const wchar_t *kUnknownOS = L"Unknown";
const int kNumHostOSes = sizeof(g_OsPairs) / sizeof(g_OsPairs[0]);
static const wchar_t *GetOS(Byte osId)
{
for (int i = 0; i < kNumHostOSes; i++)
if (g_OsPairs[i].Id == osId)
return g_OsPairs[i].Name;
return kUnknownOS;
};
STATPROPSTG kProps[] =
{
{ NULL, kpidPath, VT_BSTR},
{ NULL, kpidIsDir, VT_BOOL},
{ NULL, kpidSize, VT_UI8},
{ NULL, kpidPackSize, VT_UI8},
{ NULL, kpidMTime, VT_FILETIME},
{ NULL, kpidAttrib, VT_UI4},
// { NULL, kpidCommented, VT_BOOL},
{ NULL, kpidCRC, VT_UI4},
{ NULL, kpidMethod, VT_UI1},
{ NULL, kpidHostOS, VT_BSTR}
};
IMP_IInArchive_Props
IMP_IInArchive_ArcProps_NO
CHandler::CHandler() {}
STDMETHODIMP CHandler::GetNumberOfItems(UInt32 *numItems)
{
*numItems = _items.Size();
return S_OK;
}
STDMETHODIMP CHandler::GetProperty(UInt32 index, PROPID propID, PROPVARIANT *value)
{
COM_TRY_BEGIN
NWindows::NCOM::CPropVariant prop;
const CItemEx &item = _items[index];
switch(propID)
{
case kpidPath:
{
UString s = NItemName::WinNameToOSName(MultiByteToUnicodeString(item.GetName(), CP_OEMCP));
if (!s.IsEmpty())
{
if (s[s.Length() - 1] == WCHAR_PATH_SEPARATOR)
s.Delete(s.Length() - 1);
prop = s;
}
break;
}
case kpidIsDir: prop = item.IsDir(); break;
case kpidSize: prop = item.Size; break;
case kpidPackSize: prop = item.PackSize; break;
case kpidCRC: prop = (UInt32)item.CRC; break;
case kpidHostOS: prop = GetOS(item.OsId); break;
case kpidMTime:
{
FILETIME utcFileTime;
UInt32 unixTime;
if (item.GetUnixTime(unixTime))
NTime::UnixTimeToFileTime(unixTime, utcFileTime);
else
{
FILETIME localFileTime;
if (DosTimeToFileTime(item.ModifiedTime, localFileTime))
{
if (!LocalFileTimeToFileTime(&localFileTime, &utcFileTime))
utcFileTime.dwHighDateTime = utcFileTime.dwLowDateTime = 0;
}
else
utcFileTime.dwHighDateTime = utcFileTime.dwLowDateTime = 0;
}
prop = utcFileTime;
break;
}
/*
case kpidAttrib: prop = (UInt32)item.Attributes; break;
case kpidCommented: prop = item.IsCommented(); break;
*/
case kpidMethod:
{
wchar_t method2[kMethodIdSize + 1];
method2[kMethodIdSize] = 0;
for (int i = 0; i < kMethodIdSize; i++)
method2[i] = item.Method[i];
prop = method2;
break;
}
}
prop.Detach(value);
return S_OK;
COM_TRY_END
}
/*
class CProgressImp: public CProgressVirt
{
public:
CMyComPtr<IArchiveOpenCallback> Callback;
STDMETHOD(SetCompleted)(const UInt64 *numFiles);
};
STDMETHODIMP CProgressImp::SetCompleted(const UInt64 *numFiles)
{
if (Callback)
return Callback->SetCompleted(numFiles, NULL);
return S_OK;
}
*/
STDMETHODIMP CHandler::Open(IInStream *stream,
const UInt64 * /* maxCheckStartPosition */, IArchiveOpenCallback *callback)
{
COM_TRY_BEGIN
try
{
_items.Clear();
CInArchive archive;
UInt64 endPos = 0;
bool needSetTotal = true;
if (callback != NULL)
{
RINOK(stream->Seek(0, STREAM_SEEK_END, &endPos));
RINOK(stream->Seek(0, STREAM_SEEK_SET, NULL));
}
RINOK(archive.Open(stream));
for (;;)
{
CItemEx item;
bool filled;
HRESULT result = archive.GetNextItem(filled, item);
if (result == S_FALSE)
return S_FALSE;
if (result != S_OK)
return S_FALSE;
if (!filled)
break;
_items.Add(item);
archive.Skeep(item.PackSize);
if (callback != NULL)
{
if (needSetTotal)
{
RINOK(callback->SetTotal(NULL, &endPos));
needSetTotal = false;
}
if (_items.Size() % 100 == 0)
{
UInt64 numFiles = _items.Size();
UInt64 numBytes = item.DataPosition;
RINOK(callback->SetCompleted(&numFiles, &numBytes));
}
}
}
if (_items.IsEmpty())
return S_FALSE;
_stream = stream;
}
catch(...)
{
return S_FALSE;
}
COM_TRY_END
return S_OK;
}
STDMETHODIMP CHandler::Close()
{
_items.Clear();
_stream.Release();
return S_OK;
}
//////////////////////////////////////
// CHandler::DecompressItems
STDMETHODIMP CHandler::Extract(const UInt32* indices, UInt32 numItems,
Int32 testModeSpec, IArchiveExtractCallback *extractCallback)
{
COM_TRY_BEGIN
bool testMode = (testModeSpec != 0);
UInt64 totalUnPacked = 0, totalPacked = 0;
bool allFilesMode = (numItems == UInt32(-1));
if (allFilesMode)
numItems = _items.Size();
if(numItems == 0)
return S_OK;
UInt32 i;
for(i = 0; i < numItems; i++)
{
const CItemEx &item = _items[allFilesMode ? i : indices[i]];
totalUnPacked += item.Size;
totalPacked += item.PackSize;
}
extractCallback->SetTotal(totalUnPacked);
UInt64 currentTotalUnPacked = 0, currentTotalPacked = 0;
UInt64 currentItemUnPacked, currentItemPacked;
NCompress::NLzh::NDecoder::CCoder *lzhDecoderSpec = 0;
CMyComPtr<ICompressCoder> lzhDecoder;
CMyComPtr<ICompressCoder> lzh1Decoder;
CMyComPtr<ICompressCoder> arj2Decoder;
NCompress::CCopyCoder *copyCoderSpec = new NCompress::CCopyCoder();
CMyComPtr<ICompressCoder> copyCoder = copyCoderSpec;
CLocalProgress *lps = new CLocalProgress;
CMyComPtr<ICompressProgressInfo> progress = lps;
lps->Init(extractCallback, false);
CLimitedSequentialInStream *streamSpec = new CLimitedSequentialInStream;
CMyComPtr<ISequentialInStream> inStream(streamSpec);
streamSpec->SetStream(_stream);
for(i = 0; i < numItems; i++, currentTotalUnPacked += currentItemUnPacked,
currentTotalPacked += currentItemPacked)
{
currentItemUnPacked = 0;
currentItemPacked = 0;
lps->InSize = currentTotalPacked;
lps->OutSize = currentTotalUnPacked;
RINOK(lps->SetCur());
CMyComPtr<ISequentialOutStream> realOutStream;
Int32 askMode;
askMode = testMode ? NExtract::NAskMode::kTest :
NExtract::NAskMode::kExtract;
Int32 index = allFilesMode ? i : indices[i];
const CItemEx &item = _items[index];
RINOK(extractCallback->GetStream(index, &realOutStream, askMode));
if (item.IsDir())
{
// if (!testMode)
{
RINOK(extractCallback->PrepareOperation(askMode));
RINOK(extractCallback->SetOperationResult(NExtract::NOperationResult::kOK));
}
continue;
}
if (!testMode && (!realOutStream))
continue;
RINOK(extractCallback->PrepareOperation(askMode));
currentItemUnPacked = item.Size;
currentItemPacked = item.PackSize;
{
COutStreamWithCRC *outStreamSpec = new COutStreamWithCRC;
CMyComPtr<ISequentialOutStream> outStream(outStreamSpec);
outStreamSpec->Init(realOutStream);
realOutStream.Release();
UInt64 pos;
_stream->Seek(item.DataPosition, STREAM_SEEK_SET, &pos);
streamSpec->Init(item.PackSize);
HRESULT result = S_OK;
Int32 opRes = NExtract::NOperationResult::kOK;
if (item.IsCopyMethod())
{
result = copyCoder->Code(inStream, outStream, NULL, NULL, progress);
if (result == S_OK && copyCoderSpec->TotalSize != item.PackSize)
result = S_FALSE;
}
else if (item.IsLh4GroupMethod())
{
if (!lzhDecoder)
{
lzhDecoderSpec = new NCompress::NLzh::NDecoder::CCoder;
lzhDecoder = lzhDecoderSpec;
}
lzhDecoderSpec->SetDictionary(item.GetNumDictBits());
result = lzhDecoder->Code(inStream, outStream, NULL, ¤tItemUnPacked, progress);
}
/*
else if (item.IsLh1GroupMethod())
{
if (!lzh1Decoder)
{
lzh1DecoderSpec = new NCompress::NLzh1::NDecoder::CCoder;
lzh1Decoder = lzh1DecoderSpec;
}
lzh1DecoderSpec->SetDictionary(item.GetNumDictBits());
result = lzh1Decoder->Code(inStream, outStream, NULL, ¤tItemUnPacked, progress);
}
*/
else
opRes = NExtract::NOperationResult::kUnSupportedMethod;
if (opRes == NExtract::NOperationResult::kOK)
{
if (result == S_FALSE)
opRes = NExtract::NOperationResult::kDataError;
else
{
RINOK(result);
if (outStreamSpec->GetCRC() != item.CRC)
opRes = NExtract::NOperationResult::kCRCError;
}
}
outStream.Release();
RINOK(extractCallback->SetOperationResult(opRes));
}
}
return S_OK;
COM_TRY_END
}
}}
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