/// <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));
}
}
}
/// <summary>Reads a SASL negotiation message and negotiation cipher options.</summary>
/// <param name="in">stream to read</param>
/// <param name="cipherOptions">list to store negotiation cipher options</param>
/// <returns>byte[] SASL negotiation message</returns>
/// <exception cref="System.IO.IOException">for any error</exception>
public static byte[] ReadSaslMessageAndNegotiationCipherOptions(InputStream @in,
IList <CipherOption> cipherOptions)
{
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
{
IList <HdfsProtos.CipherOptionProto> optionProtos = proto.GetCipherOptionList();
if (optionProtos != null)
{
foreach (HdfsProtos.CipherOptionProto optionProto in optionProtos)
{
cipherOptions.AddItem(PBHelper.Convert(optionProto));
}
}
return(proto.GetPayload().ToByteArray());
}
}
}
/// <summary>Sends a SASL negotiation message.</summary>
/// <param name="out">stream to receive message</param>
/// <param name="status">negotiation status</param>
/// <param name="payload">to send</param>
/// <param name="message">to send</param>
/// <exception cref="System.IO.IOException">for any error</exception>
public static void SendSaslMessage(OutputStream @out, DataTransferProtos.DataTransferEncryptorMessageProto.DataTransferEncryptorStatus
status, byte[] payload, string message)
{
DataTransferProtos.DataTransferEncryptorMessageProto.Builder builder = DataTransferProtos.DataTransferEncryptorMessageProto
.NewBuilder();
builder.SetStatus(status);
if (payload != null)
{
builder.SetPayload(ByteString.CopyFrom(payload));
}
if (message != null)
{
builder.SetMessage(message);
}
DataTransferProtos.DataTransferEncryptorMessageProto proto = ((DataTransferProtos.DataTransferEncryptorMessageProto
)builder.Build());
proto.WriteDelimitedTo(@out);
@out.Flush();
}
/// <summary>Send a SASL negotiation message and negotiation cipher options to server.
/// </summary>
/// <param name="out">stream to receive message</param>
/// <param name="payload">to send</param>
/// <param name="options">cipher options to negotiate</param>
/// <exception cref="System.IO.IOException">for any error</exception>
public static void SendSaslMessageAndNegotiationCipherOptions(OutputStream @out,
byte[] payload, IList <CipherOption> options)
{
DataTransferProtos.DataTransferEncryptorMessageProto.Builder builder = DataTransferProtos.DataTransferEncryptorMessageProto
.NewBuilder();
builder.SetStatus(DataTransferProtos.DataTransferEncryptorMessageProto.DataTransferEncryptorStatus
.Success);
if (payload != null)
{
builder.SetPayload(ByteString.CopyFrom(payload));
}
if (options != null)
{
builder.AddAllCipherOption(PBHelper.ConvertCipherOptions(options));
}
DataTransferProtos.DataTransferEncryptorMessageProto proto = ((DataTransferProtos.DataTransferEncryptorMessageProto
)builder.Build());
proto.WriteDelimitedTo(@out);
@out.Flush();
}
/// <summary>Reads a SASL negotiation message.</summary>
/// <param name="in">stream to read</param>
/// <returns>bytes of SASL negotiation messsage</returns>
/// <exception cref="System.IO.IOException">for any error</exception>
public static byte[] ReadSaslMessage(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
{
return(proto.GetPayload().ToByteArray());
}
}
}
