/// <summary>
/// Attempt to decode a stream of bytes into a <see cref="KdcProxyMessage"/>
/// </summary>
/// <param name="encoded">The message to decode</param>
/// <param name="decoded">The decoded message</param>
/// <returns>Returns true if it was successfully decoded, otherwise returns false</returns>
public static bool TryDecode(ReadOnlyMemory <byte> encoded, out KdcProxyMessage decoded)
{
decoded = null;
var reader = new AsnReader(encoded, AsnEncodingRules.DER);
var tag = reader.PeekTag();
if (tag != Asn1Tag.Sequence)
{
return(false);
}
try
{
Decode(reader, Asn1Tag.Sequence, out decoded);
reader.ThrowIfNotEmpty();
}
catch
{
return(false);
}
return(true);
}
/// <summary>
/// Wraps a standard KDC message into a proxy message
/// </summary>
/// <param name="message">The message to wrap</param>
/// <param name="domain">The optional domain hint for downstream processing</param>
/// <param name="hint">A DC location hint for downstream processing</param>
/// <param name="mode">The encoding mode which indicates whether the message should include the length prefix or not</param>
/// <returns>Returns a formed KDC Message</returns>
public static KdcProxyMessage WrapMessage(
ReadOnlyMemory <byte> message,
string domain = null,
DcLocatorHint?hint = null,
KdcProxyMessageMode mode = KdcProxyMessageMode.IncludeLengthPrefix
)
{
var proxyMessage = new KdcProxyMessage()
{
TargetDomain = domain,
DcLocatorHint = hint
};
if (mode == KdcProxyMessageMode.NoPrefix)
{
proxyMessage.KerbMessage = message;
}
else
{
proxyMessage.KerbMessage = Tcp.FormatKerberosMessageStream(message);
}
return(proxyMessage);
}