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// Archive/cpio/Handler.cpp
#include "StdAfx.h"
#include "CpioHandler.h"
#include "CpioIn.h"
#include "Common/Defs.h"
#include "Common/StringConvert.h"
#include "Common/NewHandler.h"
#include "Common/ComTry.h"
#include "Windows/Time.h"
#include "Windows/PropVariant.h"
#include "../../Common/ProgressUtils.h"
#include "../../Common//LimitedStreams.h"
#include "../../Compress/Copy/CopyCoder.h"
#include "../Common/ItemNameUtils.h"
using namespace NWindows;
using namespace NTime;
namespace NArchive {
namespace NCpio {
/*
enum
{
kpidinode = kpidUserDefined,
kpidiChkSum
};
*/
STATPROPSTG kProps[] =
{
{ NULL, kpidPath, VT_BSTR},
{ NULL, kpidIsDir, VT_BOOL},
{ NULL, kpidSize, VT_UI8},
{ NULL, kpidPackSize, VT_UI8},
{ NULL, kpidMTime, VT_FILETIME},
// { NULL, kpidUser, VT_BSTR},
// { NULL, kpidGroup, VT_BSTR},
// { L"inode", kpidinode, VT_UI4}
// { L"CheckSum", kpidiChkSum, VT_UI4}
};
IMP_IInArchive_Props
IMP_IInArchive_ArcProps_NO
STDMETHODIMP CHandler::Open(IInStream *stream,
const UInt64 * /* maxCheckStartPosition */,
IArchiveOpenCallback *callback)
{
COM_TRY_BEGIN
// try
{
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));
_items.Clear();
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.SkeepDataRecords(item.Size, item.Align);
if (callback != NULL)
{
if (needSetTotal)
{
RINOK(callback->SetTotal(NULL, &endPos));
needSetTotal = false;
}
if (_items.Size() % 100 == 0)
{
UInt64 numFiles = _items.Size();
UInt64 numBytes = item.HeaderPosition;
RINOK(callback->SetCompleted(&numFiles, &numBytes));
}
}
}
if (_items.Size() == 0)
return S_FALSE;
_inStream = stream;
}
/*
catch(...)
{
return S_FALSE;
}
*/
return S_OK;
COM_TRY_END
}
STDMETHODIMP CHandler::Close()
{
_items.Clear();
_inStream.Release();
return S_OK;
}
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:
prop = NItemName::GetOSName(MultiByteToUnicodeString(item.Name, CP_OEMCP));
break;
case kpidIsDir:
prop = item.IsDir();
break;
case kpidSize:
case kpidPackSize:
prop = (UInt64)item.Size;
break;
case kpidMTime:
{
FILETIME utcFileTime;
if (item.ModificationTime != 0)
NTime::UnixTimeToFileTime(item.ModificationTime, utcFileTime);
else
{
utcFileTime.dwLowDateTime = 0;
utcFileTime.dwHighDateTime = 0;
}
prop = utcFileTime;
break;
}
/*
case kpidinode: prop = item.inode; break;
case kpidiChkSum: prop = item.ChkSum; break;
*/
}
prop.Detach(value);
return S_OK;
COM_TRY_END
}
STDMETHODIMP CHandler::Extract(const UInt32* indices, UInt32 numItems,
Int32 _aTestMode, IArchiveExtractCallback *extractCallback)
{
COM_TRY_BEGIN
bool testMode = (_aTestMode != 0);
bool allFilesMode = (numItems == UInt32(-1));
if (allFilesMode)
numItems = _items.Size();
if (numItems == 0)
return S_OK;
UInt64 totalSize = 0;
UInt32 i;
for (i = 0; i < numItems; i++)
totalSize += _items[allFilesMode ? i : indices[i]].Size;
extractCallback->SetTotal(totalSize);
UInt64 currentTotalSize = 0;
UInt64 currentItemSize;
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(_inStream);
for (i = 0; i < numItems; i++, currentTotalSize += currentItemSize)
{
lps->InSize = lps->OutSize = currentTotalSize;
RINOK(lps->SetCur());
CMyComPtr<ISequentialOutStream> realOutStream;
Int32 askMode = testMode ?
NArchive::NExtract::NAskMode::kTest :
NArchive::NExtract::NAskMode::kExtract;
Int32 index = allFilesMode ? i : indices[i];
const CItemEx &item = _items[index];
RINOK(extractCallback->GetStream(index, &realOutStream, askMode));
currentItemSize = item.Size;
if (item.IsDir())
{
RINOK(extractCallback->PrepareOperation(askMode));
RINOK(extractCallback->SetOperationResult(NArchive::NExtract::NOperationResult::kOK));
continue;
}
if (!testMode && (!realOutStream))
continue;
RINOK(extractCallback->PrepareOperation(askMode));
if (testMode)
{
RINOK(extractCallback->SetOperationResult(NArchive::NExtract::NOperationResult::kOK));
continue;
}
RINOK(_inStream->Seek(item.GetDataPosition(), STREAM_SEEK_SET, NULL));
streamSpec->Init(item.Size);
RINOK(copyCoder->Code(inStream, realOutStream, NULL, NULL, progress));
realOutStream.Release();
RINOK(extractCallback->SetOperationResult((copyCoderSpec->TotalSize == item.Size) ?
NArchive::NExtract::NOperationResult::kOK:
NArchive::NExtract::NOperationResult::kDataError));
}
return S_OK;
COM_TRY_END
}
}}
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