tachyon.security.authentication

Class PlainSaslServer

java.lang.Object

tachyon.security.authentication.PlainSaslServer

All Implemented Interfaces:

SaslServer

public final class PlainSaslServer
extends Object
implements SaslServer

This class provides PLAIN SASL authentication. Because the Java SunSASL provider doesn't support the server-side PLAIN mechanism. There is a new provider needed to register to support server-side PLAIN mechanism. This class completes three basic steps to implement a SASL security provider:

1. Write a class that implements the SaslServer interface
2. Write a factory class implements the SaslServerFactory
3. Write a JCA provider that registers the factory

NOTE: When this SaslServer works on authentication (i.e., in the method evaluateResponse()), it always assigns authentication ID to authorization ID currently. TODO: Authorization ID and authentication ID could be different after supporting impersonation.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	PlainSaslServer.AuthorizedClientUser An instance of this class represents a client user connecting to Tachyon service.
static class	PlainSaslServer.PlainServerCallbackHandler PlainServerCallbackHandler is used by the SASL mechanisms to get further information to complete the authentication.

Method Summary

Methods

Modifier and Type	Method and Description
void	dispose()
byte[]	evaluateResponse(byte[] response)
String	getAuthorizationID()
String	getMechanismName()
Object	getNegotiatedProperty(String propName)
boolean	isComplete()
byte[]	unwrap(byte[] incoming, int offset, int len)
byte[]	wrap(byte[] outgoing, int offset, int len)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getMechanismName

public String getMechanismName()

Specified by:

getMechanismName in interface SaslServer

evaluateResponse

public byte[] evaluateResponse(byte[] response)
                        throws SaslException

Specified by:

evaluateResponse in interface SaslServer

Throws:

SaslException

isComplete

public boolean isComplete()

Specified by:

isComplete in interface SaslServer

getAuthorizationID

public String getAuthorizationID()

Specified by:

getAuthorizationID in interface SaslServer

unwrap

public byte[] unwrap(byte[] incoming,
            int offset,
            int len)

Specified by:

unwrap in interface SaslServer

wrap

public byte[] wrap(byte[] outgoing,
          int offset,
          int len)

Specified by:

wrap in interface SaslServer

getNegotiatedProperty

public Object getNegotiatedProperty(String propName)

Specified by:

getNegotiatedProperty in interface SaslServer

dispose

public void dispose()

Specified by:

dispose in interface SaslServer