public bool IsExtensionAllowed(CheckExtensionMethodEnum checkExtensionMethodEnum, Stream stream, string filename)
{
var isExtensionAllowed = false;
if (stream == null)
{
return(isExtensionAllowed);
}
switch (checkExtensionMethodEnum)
{
case CheckExtensionMethodEnum.MagicNumberOwnImplementation:
isExtensionAllowed = CheckByOwnImplementation(stream);
break;
case CheckExtensionMethodEnum.ExtensionFromFileName:
isExtensionAllowed = CheckByFilename(filename);
break;
case CheckExtensionMethodEnum.FileTypeCheckerNuget:
isExtensionAllowed = FileTypeValidator.IsImage(stream);
break;
default:
break;
}
return(isExtensionAllowed);
}