mame/3rdparty/lzma/CPP/7zip/UI/Common/ArchiveOpenCallback.cpp

// ArchiveOpenCallback.cpp

#include "StdAfx.h"

#include "../../../Common/ComTry.h"

#include "../../../Windows/FileName.h"
#include "../../../Windows/PropVariant.h"

#include "../../Common/FileStreams.h"

#include "ArchiveOpenCallback.h"

using namespace NWindows;

STDMETHODIMP COpenCallbackImp::SetTotal(const UInt64 *files, const UInt64 *bytes)
{
  COM_TRY_BEGIN
  if (ReOpenCallback)
    return ReOpenCallback->SetTotal(files, bytes);
  if (!Callback)
    return S_OK;
  return Callback->Open_SetTotal(files, bytes);
  COM_TRY_END
}

STDMETHODIMP COpenCallbackImp::SetCompleted(const UInt64 *files, const UInt64 *bytes)
{
  COM_TRY_BEGIN
  if (ReOpenCallback)
    return ReOpenCallback->SetCompleted(files, bytes);
  if (!Callback)
    return S_OK;
  return Callback->Open_SetCompleted(files, bytes);
  COM_TRY_END
}

 
STDMETHODIMP COpenCallbackImp::GetProperty(PROPID propID, PROPVARIANT *value)
{
  COM_TRY_BEGIN
  NCOM::CPropVariant prop;
  if (_subArchiveMode)
    switch (propID)
    {
      case kpidName: prop = _subArchiveName; break;
      // case kpidSize:  prop = _subArchiveSize; break; // we don't use it now
    }
  else
    switch (propID)
    {
      case kpidName:  prop = fs2us(_fileInfo.Name); break;
      case kpidIsDir:  prop = _fileInfo.IsDir(); break;
      case kpidSize:  prop = _fileInfo.Size; break;
      case kpidAttrib:  prop = (UInt32)_fileInfo.GetWinAttrib(); break;
      case kpidPosixAttrib:  prop = (UInt32)_fileInfo.GetPosixAttrib(); break;
      case kpidCTime:  PropVariant_SetFrom_FiTime(prop, _fileInfo.CTime); break;
      case kpidATime:  PropVariant_SetFrom_FiTime(prop, _fileInfo.ATime); break;
      case kpidMTime:  PropVariant_SetFrom_FiTime(prop, _fileInfo.MTime); break;
    }
  prop.Detach(value);
  return S_OK;
  COM_TRY_END
}

struct CInFileStreamVol: public CInFileStream
{
  unsigned FileNameIndex;
  COpenCallbackImp *OpenCallbackImp;
  CMyComPtr<IArchiveOpenCallback> OpenCallbackRef;
 
  ~CInFileStreamVol()
  {
    if (OpenCallbackRef)
      OpenCallbackImp->FileNames_WasUsed[FileNameIndex] = false;
  }
};


// from ArchiveExtractCallback.cpp
bool IsSafePath(const UString &path);

STDMETHODIMP COpenCallbackImp::GetStream(const wchar_t *name, IInStream **inStream)
{
  COM_TRY_BEGIN
  *inStream = NULL;
  
  if (_subArchiveMode)
    return S_FALSE;
  if (Callback)
  {
    RINOK(Callback->Open_CheckBreak());
  }

  UString name2 = name;

  
  #ifndef _SFX
  
  #ifdef _WIN32
  name2.Replace(L'/', WCHAR_PATH_SEPARATOR);
  #endif

  // if (!allowAbsVolPaths)
  if (!IsSafePath(name2))
    return S_FALSE;

  #ifdef _WIN32
  /* WIN32 allows wildcards in Find() function
     and doesn't allow wildcard in File.Open()
     so we can work without the following wildcard check here */
  if (name2.Find(L'*') >= 0)
    return S_FALSE;
  {
    int startPos = 0;
    if (name2.IsPrefixedBy_Ascii_NoCase("\\\\?\\"))
      startPos = 3;
    if (name2.Find(L'?', startPos) >= 0)
      return S_FALSE;
  }
  #endif

  #endif


  FString fullPath;
  if (!NFile::NName::GetFullPath(_folderPrefix, us2fs(name2), fullPath))
    return S_FALSE;
  if (!_fileInfo.Find_FollowLink(fullPath))
    return S_FALSE;
  if (_fileInfo.IsDir())
    return S_FALSE;
  CInFileStreamVol *inFile = new CInFileStreamVol;
  CMyComPtr<IInStream> inStreamTemp = inFile;
  if (!inFile->Open(fullPath))
  {
    return GetLastError_noZero_HRESULT();
  }

  FileSizes.Add(_fileInfo.Size);
  FileNames.Add(name2);
  inFile->FileNameIndex = FileNames_WasUsed.Add(true);
  inFile->OpenCallbackImp = this;
  inFile->OpenCallbackRef = this;
  // TotalSize += _fileInfo.Size;
  *inStream = inStreamTemp.Detach();
  return S_OK;
  COM_TRY_END
}

#ifndef _NO_CRYPTO
STDMETHODIMP COpenCallbackImp::CryptoGetTextPassword(BSTR *password)
{
  COM_TRY_BEGIN
  if (ReOpenCallback)
  {
    CMyComPtr<ICryptoGetTextPassword> getTextPassword;
    ReOpenCallback.QueryInterface(IID_ICryptoGetTextPassword, &getTextPassword);
    if (getTextPassword)
      return getTextPassword->CryptoGetTextPassword(password);
  }
  if (!Callback)
    return E_NOTIMPL;
  PasswordWasAsked = true;
  return Callback->Open_CryptoGetTextPassword(password);
  COM_TRY_END
}
#endif