private void FileValidation()
{
if (BaseValidation() /* || State == FileState.InValidFile*/)
{
return;
}
switch (Extension)
{
case ".flac":
{
if (!GlobalConfiguration.Instance().InspectionOptions.FLACCompressRate)
{
goto SKIP_FLAC_COMPRESS_RATE;
}
Flac = FlacData.GetMetadataFromFlac(FullPath);
// _confidence = (float)Flac.CompressRate;
Suffix += $"[{Flac.CompressRate * 100:00.00}%]";
if (Flac.IsHiRes)
{
Suffix += "[HR]";
}
if (Flac.HasCover)
{
Suffix += "[图]";
}
Encode = Flac.Encoder;
if (Flac.CompressRate > 0.9) //Maybe an uncompressed file
{
State = FileState.InValidFlacLevel;
}
}
SKIP_FLAC_COMPRESS_RATE:
break;
case ".cue":
if (!GlobalConfiguration.Instance().InspectionOptions.CUEEncoding)
{
break;
}
CheckCUE();
break;
case ".log":
{
if (!GlobalConfiguration.Instance().InspectionOptions.LogValidation)
{
break;
}
Logger.Log(Logger.Level.Info, $"Log check for '{FullPath}'");
Encode = EncodingDetector.GetEncoding(FullPath, out var confidence);
if (confidence < 0.9)
{
break;
}
var text = File.ReadAllText(FullPath, System.Text.Encoding.GetEncoding(Encode));
var index = 1;
foreach (var(version, oldSignature, actualSignature) in LogChecker.Core.eac_verify(text))
{
if (oldSignature == "")
{
Logger.Log(Logger.Level.Debug, $"No signature found, it could be '{actualSignature}'");
continue;
}
if (oldSignature != actualSignature)
{
Logger.Log(Logger.Level.Debug, $"Expect signature '{actualSignature}', but get '{oldSignature}'");
State = FileState.TamperedLog;
}
else
{
Logger.Log(Logger.Level.Fine, $"{index++}. Log entry is fine!");
}
}
break;
}
case ".png":
{
Logger.Log(Logger.Level.Info, $"Png check for '{FullPath}'");
var pngInfo = PngData.GetMetadataFrom(FullPath);
Suffix += $"[{pngInfo.CompressRate * 100:00.00}%]";
if (pngInfo.CompressRate > 0.9) //Maybe an uncompressed file
{
State = FileState.InValidFlacLevel;
}
break;
}
default:
if (!GlobalConfiguration.Instance().InspectionOptions.FileHeader)
{
break;
}
if (!FileHeader.Check(FullPath))
{
State = FileState.InValidFileSignature;
}
break;
}
}