private static void YaraRulesCompileTest(FileEnumeratorParameters parameters)
{
if (!parameters.YaraParameters.Any())
{
return;
}
foreach (YaraFilter filter in parameters.YaraParameters)
{
YSScanner compiledRule = null;
try
{
compiledRule = YaraHelper.CompileRules(filter.OnMatchRules, parameters.ReportAndLogOutputFunction);
}
catch (Exception ex)
{
parameters.ReportExceptionFunction.Invoke(nameof(YaraRulesCompileTest), string.Empty, ex);
throw;
}
finally
{
if (compiledRule != null)
{
compiledRule.Dispose();
}
}
}
}
public static void ThrowIfAnyParametersInvalid(FileEnumeratorParameters parameters)
{
if (parameters == null)
{
throw new ArgumentNullException(nameof(parameters));
}
if (parameters.DataPersistenceLayer == null)
{
throw new ArgumentException(nameof(DataPersistenceLayer));
}
if (parameters.SearchPatterns == null)
{
throw new ArgumentNullException(nameof(parameters.SearchPatterns));
}
if (parameters.ReportExceptionFunction == null)
{
throw new ArgumentNullException(nameof(parameters.ReportExceptionFunction));
}
if (parameters.ReportOutputFunction == null)
{
throw new ArgumentNullException(nameof(parameters.ReportOutputFunction));
}
if (parameters.LogOutputFunction == null)
{
throw new ArgumentNullException(nameof(parameters.LogOutputFunction));
}
if (parameters.ReportResultsFunction == null)
{
throw new ArgumentNullException(nameof(parameters.ReportResultsFunction));
}
if (string.IsNullOrWhiteSpace(parameters.SelectedFolder))
{
throw new ArgumentNullException(nameof(parameters.SelectedFolder));
}
if (!Directory.Exists(parameters.SelectedFolder))
{
throw new DirectoryNotFoundException(parameters.SelectedFolder);
}
char suppliedDriveLetter = char.ToUpper(parameters.SelectedFolder[0]);
List <char> foundDriveLetters = DriveInfo.GetDrives()
.Where(d => d.IsReady && d.DriveFormat == "NTFS")
.Select(di => di.Name.ToUpper()[0])
.ToList();
if (!foundDriveLetters.Any() || !foundDriveLetters.Contains(suppliedDriveLetter))
{
throw new DriveNotFoundException($"The drive {suppliedDriveLetter}:\\ was not found, the drive was not mounted or ready, or the drive had a file system other than NTFS.");
}
if (parameters.CancelToken == null)
{
throw new ArgumentNullException(nameof(parameters.CancelToken), "If you do not want to pass a CancellationToken, then pass 'CancellationToken.None'");
}
parameters.CancelToken.ThrowIfCancellationRequested();
}