/// <summary>
/// Convert a property in the AD to a string
/// </summary>
/// <param name="directoryEntry">DirectoryEntry</param>
/// <param name="propertyName">string</param>
/// <returns>string</returns>
private static string ToDisplayString(DirectoryEntry directoryEntry, string propertyName)
{
return(directoryEntry.Properties[propertyName].Value switch
{
IAdsLargeInteger largeInteger => largeInteger.ToDateTimeOffset()?.ToString() ?? "empty",
object[] objects => string.Join(",", objects.Select(o => o.ToString())),
byte[] bytes => string.Join(",", bytes),
_ => directoryEntry.Properties[propertyName].Value?.ToString(),
});
/// <summary>
/// Convert an IAdsLargeInteger to a DateTime
/// </summary>
/// <param name="largeInteger">IAdsLargeInteger</param>
/// <returns>DateTime?</returns>
public static DateTime?ToDateTime(this IAdsLargeInteger largeInteger)
{
var dateLong = largeInteger.ToLong();
if (!dateLong.HasValue)
{
return(null);
}
return(DateTime.FromFileTimeUtc(dateLong.Value));
}
/// <summary>
/// Convert an IAdsLargeInteger to a long
/// </summary>
/// <param name="largeInteger">IAdsLargeInteger</param>
/// <returns>long?</returns>
public static long?ToLong(this IAdsLargeInteger largeInteger)
{
long dateLong = (largeInteger.HighPart << 32) + largeInteger.LowPart;
if (dateLong <= 0 || dateLong == 9223372036854775807)
{
return(null);
}
return(dateLong);
}
/// <summary>
/// Convert the specified property to the target type
/// </summary>
/// <param name="directoryEntry">DirectoryEntry</param>
/// <param name="propertyName">string</param>
/// <param name="targetType">Type</param>
/// <returns>object</returns>
public static object ConvertProperty(this DirectoryEntry directoryEntry, string propertyName, Type targetType = null)
{
targetType ??= typeof(string);
bool isId = propertyName == "uSNChanged" || propertyName == "uSNCreated";
var value = directoryEntry.Properties[propertyName].Value;
var valueType = value.GetType();
if (targetType.IsAssignableFrom(valueType))
{
return(value);
}
if (targetType == typeof(string))
{
return(value switch
{
IAdsLargeInteger largeIntegerToString when isId => largeIntegerToString.ToLong()?.ToString() ?? "n.a.",
IAdsLargeInteger largeIntegerToString => largeIntegerToString.ToDateTimeOffset()?.ToString() ?? "empty",
IADsSecurityDescriptor securityDescriptor => $"{securityDescriptor.Group}-{securityDescriptor.Owner}",
object[] objects => string.Join(",", objects.Select(o => o.ToString())),
byte[] bytes => string.Join(",", bytes),
_ => value.ToString(),
});
