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7zip/CPP/7zip/Archive/Rar/RarHandler.cpp  view on Meta::CPAN

    if (!folderInStream)
    {
      folderInStreamSpec = new CFolderInStream;
      folderInStream = folderInStreamSpec;
    }

    folderInStreamSpec->Init(&_archives, &_items, refItem);

    UInt64 packSize = currentPackSize;

    // packedPos += item.PackSize;
    // unpackedPos += 0;
    
    CMyComPtr<ISequentialInStream> inStream;
    if (item.IsEncrypted())
    {
      CMyComPtr<ICryptoSetPassword> cryptoSetPassword;
      if (item.UnPackVersion >= 29)
      {
        if (!rar29CryptoDecoder)
        {
          rar29CryptoDecoderSpec = new NCrypto::NRar29::CDecoder;
          rar29CryptoDecoder = rar29CryptoDecoderSpec;
          // RINOK(rar29CryptoDecoder.CoCreateInstance(CLSID_CCryptoRar29Decoder));
        }
        rar29CryptoDecoderSpec->SetRar350Mode(item.UnPackVersion < 36);
        CMyComPtr<ICompressSetDecoderProperties2> cryptoProperties;
        RINOK(rar29CryptoDecoder.QueryInterface(IID_ICompressSetDecoderProperties2,
            &cryptoProperties));
        RINOK(cryptoProperties->SetDecoderProperties2(item.Salt, item.HasSalt() ? sizeof(item.Salt) : 0));
        filterStreamSpec->Filter = rar29CryptoDecoder;
      }
      else if (item.UnPackVersion >= 20)
      {
        if (!rar20CryptoDecoder)
        {
          rar20CryptoDecoderSpec = new NCrypto::NRar20::CDecoder;
          rar20CryptoDecoder = rar20CryptoDecoderSpec;
          // RINOK(rar20CryptoDecoder.CoCreateInstance(CLSID_CCryptoRar20Decoder));
        }
        filterStreamSpec->Filter = rar20CryptoDecoder;
      }
      else
      {
        outStream.Release();
        RINOK(extractCallback->SetOperationResult(NExtract::NOperationResult::kUnSupportedMethod));
        continue;
      }
      RINOK(filterStreamSpec->Filter.QueryInterface(IID_ICryptoSetPassword,
          &cryptoSetPassword));

      if (!getTextPassword)
        extractCallback->QueryInterface(IID_ICryptoGetTextPassword, (void **)&getTextPassword);
      if (getTextPassword)
      {
        CMyComBSTR password;
        RINOK(getTextPassword->CryptoGetTextPassword(&password));
        if (item.UnPackVersion >= 29)
        {
          CByteBuffer buffer;
          UString unicodePassword(password);
          const UInt32 sizeInBytes = unicodePassword.Length() * 2;
          buffer.SetCapacity(sizeInBytes);
          for (int i = 0; i < unicodePassword.Length(); i++)
          {
            wchar_t c = unicodePassword[i];
            ((Byte *)buffer)[i * 2] = (Byte)c;
            ((Byte *)buffer)[i * 2 + 1] = (Byte)(c >> 8);
          }
          RINOK(cryptoSetPassword->CryptoSetPassword(
            (const Byte *)buffer, sizeInBytes));
        }
        else
        {
          AString oemPassword = UnicodeStringToMultiByte(
            (const wchar_t *)password, CP_OEMCP);
          RINOK(cryptoSetPassword->CryptoSetPassword(
            (const Byte *)(const char *)oemPassword, oemPassword.Length()));
        }
      }
      else
      {
        RINOK(cryptoSetPassword->CryptoSetPassword(0, 0));
      }
      filterStreamSpec->SetInStream(folderInStream);
      inStream = filterStream;
    }
    else
    {
      inStream = folderInStream;
    }
    CMyComPtr<ICompressCoder> commonCoder;
    switch(item.Method)
    {
      case '0':
      {
        commonCoder = copyCoder;
        break;
      }
      case '1':
      case '2':
      case '3':
      case '4':
      case '5':
      {
        /*
        if (item.UnPackVersion >= 29)
        {
          outStream.Release();
          RINOK(extractCallback->SetOperationResult(NExtract::NOperationResult::kUnSupportedMethod));
          continue;
        }
        */
        int m;
        for (m = 0; m < methodItems.Size(); m++)
          if (methodItems[m].RarUnPackVersion == item.UnPackVersion)
            break;
        if (m == methodItems.Size())
        {
          CMethodItem mi;
          mi.RarUnPackVersion = item.UnPackVersion;

          mi.Coder.Release();
          if (item.UnPackVersion <= 30)
          {
            UInt32 methodID = 0x040300;