internal static unsafe ElevationData GetElevation()

in JetBrains.HabitatDetector/src/Impl/Windows/WindowsHelper.cs [102:144]
41 lines of code
5 McCabe index (conditional complexity)

    internal static unsafe ElevationData GetElevation(void* hProcess)
    {
      void* hToken;
      if (Advapi32Dll.OpenProcessToken(hProcess, (uint)(TokenSpecificAccessRights.TOKEN_DUPLICATE | TokenSpecificAccessRights.TOKEN_QUERY), &hToken) == 0)
        throw new Win32Exception();
      try
      {
        TOKEN_ELEVATION te;
        var teSize = (uint)sizeof(TOKEN_ELEVATION);
        if (Advapi32Dll.GetTokenInformation(hToken, TOKEN_INFORMATION_CLASS.TokenElevation, &te, teSize, &teSize) == 0)
          throw new Win32Exception();

        TOKEN_ELEVATION_TYPE tet;
        var tetSize = (uint)sizeof(TOKEN_ELEVATION_TYPE);
        if (Advapi32Dll.GetTokenInformation(hToken, TOKEN_INFORMATION_CLASS.TokenElevationType, &tet, tetSize, &tetSize) == 0)
          throw new Win32Exception();

        void* hImpersonationToken;
        if (Advapi32Dll.DuplicateToken(hToken, SECURITY_IMPERSONATION_LEVEL.SecurityImpersonation, &hImpersonationToken) == 0)
          throw new Win32Exception();
        try
        {
          return new(
            IsBuildInGroupMember(hImpersonationToken, RID.DOMAIN_ALIAS_RID_ADMINS),
            te.TokenIsElevated != 0,
            tet switch
              {
                TOKEN_ELEVATION_TYPE.TokenElevationTypeDefault => JetWindowsTokenElevationType.Default,
                TOKEN_ELEVATION_TYPE.TokenElevationTypeFull => JetWindowsTokenElevationType.Full,
                TOKEN_ELEVATION_TYPE.TokenElevationTypeLimited => JetWindowsTokenElevationType.Limited,
                _ => throw new ArgumentOutOfRangeException()
              });
        }
        finally
        {
          Kernel32Dll.CloseHandle(hImpersonationToken);
        }
      }
      finally
      {
        Kernel32Dll.CloseHandle(hToken);
      }
    }