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// RPM/Handler.cpp
#include "StdAfx.h"
#include "RpmHandler.h"
#include "RpmIn.h"
#include "Common/Defs.h"
#include "Common/StringConvert.h"
#include "Common/NewHandler.h"
#include "Common/ComTry.h"
#include "Windows/PropVariant.h"
#include "Windows/Defs.h"
#include "../../Common/StreamObjects.h"
#include "../../Common/ProgressUtils.h"
#include "../../Common/LimitedStreams.h"
#include "../../Compress/Copy/CopyCoder.h"
#include "../Common/ItemNameUtils.h"
using namespace NWindows;
namespace NArchive {
namespace NRpm {
STATPROPSTG kProps[] =
{
{ NULL, kpidSize, VT_UI8},
{ NULL, kpidPackedSize, VT_UI8}
};
IMP_IInArchive_Props
IMP_IInArchive_ArcProps_NO
STDMETHODIMP CHandler::Open(IInStream *inStream,
const UInt64 * /* maxCheckStartPosition */,
IArchiveOpenCallback * /* openArchiveCallback */)
{
COM_TRY_BEGIN
try
{
if(OpenArchive(inStream) != S_OK)
return S_FALSE;
RINOK(inStream->Seek(0, STREAM_SEEK_CUR, &m_Pos));
m_InStream = inStream;
UInt64 endPosition;
RINOK(inStream->Seek(0, STREAM_SEEK_END, &endPosition));
m_Size = endPosition - m_Pos;
return S_OK;
}
catch(...)
{
return S_FALSE;
}
COM_TRY_END
}
STDMETHODIMP CHandler::Close()
{
m_InStream.Release();
return S_OK;
}
STDMETHODIMP CHandler::GetNumberOfItems(UInt32 *numItems)
{
*numItems = 1;
return S_OK;
}
STDMETHODIMP CHandler::GetProperty(UInt32 /* index */, PROPID propID, PROPVARIANT *value)
{
NWindows::NCOM::CPropVariant prop;
switch(propID)
{
case kpidSize:
case kpidPackedSize:
prop = m_Size;
break;
}
prop.Detach(value);
return S_OK;
}
STDMETHODIMP CHandler::Extract(const UInt32* indices, UInt32 numItems,
Int32 _aTestMode, IArchiveExtractCallback *extractCallback)
{
COM_TRY_BEGIN
bool allFilesMode = (numItems == UInt32(-1));
if (allFilesMode)
numItems = 1;
if(numItems == 0)
return S_OK;
if(numItems != 1)
return E_FAIL;
if (indices[0] != 0)
return E_FAIL;
bool testMode = (_aTestMode != 0);
UInt64 currentTotalSize = 0;
RINOK(extractCallback->SetTotal(m_Size));
RINOK(extractCallback->SetCompleted(¤tTotalSize));
CMyComPtr<ISequentialOutStream> realOutStream;
Int32 askMode = testMode ?
NArchive::NExtract::NAskMode::kTest :
NArchive::NExtract::NAskMode::kExtract;
Int32 index = 0;
RINOK(extractCallback->GetStream(index, &realOutStream, askMode));
if(!testMode && (!realOutStream))
return S_OK;
RINOK(extractCallback->PrepareOperation(askMode));
if (testMode)
{
RINOK(extractCallback->SetOperationResult(NArchive::NExtract::NOperationResult::kOK));
return S_OK;
}
RINOK(m_InStream->Seek(m_Pos, STREAM_SEEK_SET, NULL));
CMyComPtr<ICompressCoder> copyCoder = new NCompress::CCopyCoder;
CLocalProgress *lps = new CLocalProgress;
CMyComPtr<ICompressProgressInfo> progress = lps;
lps->Init(extractCallback, false);
RINOK(copyCoder->Code(m_InStream, realOutStream, NULL, NULL, progress));
realOutStream.Release();
return extractCallback->SetOperationResult(NArchive::NExtract::NOperationResult::kOK);
COM_TRY_END
}
}}
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