3.13

7zip/Archive/BZip2/BZip2Handler.cpp

@@ -0,0 +1,215 @@
+// BZip2Handler.cpp
+
+#include "StdAfx.h"
+
+#include "BZip2Handler.h"
+
+#include "Common/Defs.h"
+
+#include "../../Common/ProgressUtils.h"
+// #include "Interface/EnumStatProp.h"
+
+#include "Windows/PropVariant.h"
+#include "Windows/Defs.h"
+#include "Common/ComTry.h"
+
+#include "../Common/DummyOutStream.h"
+
+#ifdef COMPRESS_BZIP2
+#include "../../Compress/BZip2/BZip2Decoder.h"
+#else
+// {23170F69-40C1-278B-0402-020000000000}
+DEFINE_GUID(CLSID_CCompressBZip2Decoder, 
+0x23170F69, 0x40C1, 0x278B, 0x04, 0x02, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00);
+#include "../Common/CoderLoader.h"
+extern CSysString GetBZip2CodecPath();
+#endif
+
+using namespace NWindows;
+
+namespace NArchive {
+namespace NBZip2 {
+
+STATPROPSTG kProperties[] = 
+{
+  { NULL, kpidPath, VT_BSTR},
+  // { NULL, kpidIsFolder, VT_BOOL},
+  // { NULL, kpidSize, VT_UI8},
+  { NULL, kpidPackedSize, VT_UI8},
+};
+
+STDMETHODIMP CHandler::GetArchiveProperty(PROPID propID, PROPVARIANT *value)
+{
+  value->vt = VT_EMPTY;
+  return S_OK;
+}
+
+STDMETHODIMP CHandler::GetNumberOfProperties(UINT32 *numProperties)
+{
+  *numProperties = sizeof(kProperties) / sizeof(kProperties[0]);
+  return S_OK;
+}
+
+STDMETHODIMP CHandler::GetPropertyInfo(UINT32 index,     
+      BSTR *name, PROPID *propID, VARTYPE *varType)
+{
+  if(index >= sizeof(kProperties) / sizeof(kProperties[0]))
+    return E_INVALIDARG;
+  const STATPROPSTG &srcItem = kProperties[index];
+  *propID = srcItem.propid;
+  *varType = srcItem.vt;
+  *name = 0;
+  return S_OK;
+}
+
+STDMETHODIMP CHandler::GetNumberOfArchiveProperties(UINT32 *numProperties)
+{
+  *numProperties = 0;
+  return S_OK;
+}
+
+STDMETHODIMP CHandler::GetArchivePropertyInfo(UINT32 index,     
+      BSTR *name, PROPID *propID, VARTYPE *varType)
+{
+  return E_INVALIDARG;
+}
+
+STDMETHODIMP CHandler::GetNumberOfItems(UINT32 *numItems)
+{
+  *numItems = 1;
+  return S_OK;
+}
+
+STDMETHODIMP CHandler::GetProperty(UINT32 index, PROPID propID,  PROPVARIANT *value)
+{
+  COM_TRY_BEGIN
+  NWindows::NCOM::CPropVariant propVariant;
+  if (index != 0)
+    return E_INVALIDARG;
+  switch(propID)
+  {
+    case kpidIsFolder:
+      propVariant = false;
+      break;
+    case kpidPackedSize:
+      propVariant = _item.PackSize;
+      break;
+  }
+  propVariant.Detach(value);
+  return S_OK;
+  COM_TRY_END
+}
+
+STDMETHODIMP CHandler::Open(IInStream *stream, 
+    const UINT64 *maxCheckStartPosition,
+    IArchiveOpenCallback *openArchiveCallback)
+{
+  COM_TRY_BEGIN
+  try
+  {
+    RINOK(stream->Seek(0, STREAM_SEEK_CUR, &_streamStartPosition));
+    const int kSignatureSize = 3;
+    BYTE buffer[kSignatureSize];
+    UINT32 processedSize;
+    RINOK(stream->Read(buffer, kSignatureSize, &processedSize));
+    if (processedSize != kSignatureSize)
+      return S_FALSE;
+    if (buffer[0] != 'B' || buffer[1] != 'Z' || buffer[2] != 'h')
+      return S_FALSE;
+
+    UINT64 endPosition;
+    RINOK(stream->Seek(0, STREAM_SEEK_END, &endPosition));
+    _item.PackSize = endPosition - _streamStartPosition;
+    
+    _stream = stream;
+  }
+  catch(...)
+  {
+    return S_FALSE;
+  }
+  return S_OK;
+  COM_TRY_END
+}
+
+STDMETHODIMP CHandler::Close()
+{
+  _stream.Release();
+  return S_OK;
+}
+
+
+STDMETHODIMP CHandler::Extract(const UINT32* indices, UINT32 numItems,
+    INT32 testModeSpec, IArchiveExtractCallback *extractCallback)
+{
+  COM_TRY_BEGIN
+  bool allFilesMode = (numItems == UINT32(-1));
+  if (!allFilesMode)
+  {
+    if (numItems == 0)
+      return S_OK;
+    if (numItems != 1)
+      return E_INVALIDARG;
+    if (indices[0] != 0)
+      return E_INVALIDARG;
+  }
+
+  bool testMode = (testModeSpec != 0);
+
+  extractCallback->SetTotal(_item.PackSize);
+
+  UINT64 currentTotalPacked = 0;
+  
+  RINOK(extractCallback->SetCompleted(&currentTotalPacked));
+  
+  CMyComPtr<ISequentialOutStream> realOutStream;
+  INT32 askMode;
+  askMode = testMode ? NArchive::NExtract::NAskMode::kTest :
+  NArchive::NExtract::NAskMode::kExtract;
+  
+  RINOK(extractCallback->GetStream(0, &realOutStream, askMode));
+    
+  if(!testMode && !realOutStream)
+    return S_OK;
+
+  extractCallback->PrepareOperation(askMode);
+
+  CDummyOutStream *outStreamSpec = new CDummyOutStream;
+  CMyComPtr<ISequentialOutStream> outStream(outStreamSpec);
+  outStreamSpec->Init(realOutStream);
+  
+  realOutStream.Release();
+
+  CLocalProgress *localProgressSpec = new CLocalProgress;
+  CMyComPtr<ICompressProgressInfo> progress = localProgressSpec;
+  localProgressSpec->Init(extractCallback, true);
+  
+  RINOK(_stream->Seek(_streamStartPosition, STREAM_SEEK_SET, NULL));
+
+  #ifndef COMPRESS_BZIP2
+  CCoderLibrary lib;
+  #endif
+  CMyComPtr<ICompressCoder> decoder;
+  #ifdef COMPRESS_BZIP2
+  decoder = new NCompress::NBZip2::CDecoder;
+  #else
+  RINOK(lib.LoadAndCreateCoder(
+      GetBZip2CodecPath(),
+      CLSID_CCompressBZip2Decoder, &decoder));
+  #endif
+
+  HRESULT result = decoder->Code(_stream, outStream, NULL, NULL, progress);
+  outStream.Release();
+  if (result == S_FALSE)
+    RINOK(extractCallback->SetOperationResult(
+        NArchive::NExtract::NOperationResult::kDataError))
+  else if (result == S_OK)
+    RINOK(extractCallback->SetOperationResult(
+      NArchive::NExtract::NOperationResult::kOK))
+  else
+    return result;
+ 
+  return S_OK;
+  COM_TRY_END
+}
+
+}}