/// <summary>Read SASL message and negotiated cipher option from server.</summary>
/// <param name="in">stream to read</param>
/// <returns>
/// SaslResponseWithNegotiatedCipherOption SASL message and
/// negotiated cipher option
/// </returns>
/// <exception cref="System.IO.IOException">for any error</exception>
public static SaslResponseWithNegotiatedCipherOption ReadSaslMessageAndNegotiatedCipherOption
(InputStream @in)
{
DataTransferProtos.DataTransferEncryptorMessageProto proto = DataTransferProtos.DataTransferEncryptorMessageProto
.ParseFrom(PBHelper.VintPrefixed(@in));
if (proto.GetStatus() == DataTransferProtos.DataTransferEncryptorMessageProto.DataTransferEncryptorStatus
.ErrorUnknownKey)
{
throw new InvalidEncryptionKeyException(proto.GetMessage());
}
else
{
if (proto.GetStatus() == DataTransferProtos.DataTransferEncryptorMessageProto.DataTransferEncryptorStatus
.Error)
{
throw new IOException(proto.GetMessage());
}
else
{
byte[] response = proto.GetPayload().ToByteArray();
IList <CipherOption> options = PBHelper.ConvertCipherOptionProtos(proto.GetCipherOptionList
());
CipherOption option = null;
if (options != null && !options.IsEmpty())
{
option = options[0];
}
return(new SaslResponseWithNegotiatedCipherOption(response, option));
}
}
}