com.amazon.redshift.sspi

Class SSPIClient

java.lang.Object

com.amazon.redshift.sspi.SSPIClient

All Implemented Interfaces:

ISSPIClient

public class SSPIClient
extends Object
implements ISSPIClient

Use Waffle-JNI to support SSPI authentication when PgJDBC is running on a Windows client and talking to a Windows server.

SSPI is not supported on a non-Windows client.

Author:

craig

Field Summary

Fields

Modifier and Type	Field and Description
static String	SSPI_DEFAULT_SPN_SERVICE_CLASS

Constructor Summary

Constructors

Constructor and Description
SSPIClient(RedshiftStream rsStream, String spnServiceClass, boolean enableNegotiate) Instantiate an SSPIClient for authentication of a connection.

Method Summary

Methods

Modifier and Type	Method and Description
void	continueSSPI(int msgLength) Continue an existing authentication conversation with the back-end in resonse to an authentication request of type AUTH_REQ_GSS_CONT.
void	dispose() Clean up native win32 resources after completion or failure of SSPI authentication.
boolean	isSSPISupported() Test whether we can attempt SSPI authentication.
void	startSSPI() Respond to an authentication request from the back-end for SSPI authentication (AUTH_REQ_SSPI).

Methods inherited from class java.lang.Object

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

Field Detail

SSPI_DEFAULT_SPN_SERVICE_CLASS

public static final String SSPI_DEFAULT_SPN_SERVICE_CLASS

See Also:

Constant Field Values

Constructor Detail

SSPIClient

public SSPIClient(RedshiftStream rsStream,
          String spnServiceClass,
          boolean enableNegotiate)

Instantiate an SSPIClient for authentication of a connection.

SSPIClient is not re-usable across connections.

It is safe to instantiate SSPIClient even if Waffle and JNA are missing or on non-Windows platforms, however you may not call any methods other than isSSPISupported().

Parameters:

rsStream - Redshift connection stream

spnServiceClass - SSPI SPN service class, defaults to POSTGRES if null

enableNegotiate - enable negotiate

Method Detail

isSSPISupported

public boolean isSSPISupported()

Test whether we can attempt SSPI authentication. If false, do not attempt to call any other SSPIClient methods.

Specified by:

isSSPISupported in interface ISSPIClient

Returns:

true if it's safe to attempt SSPI authentication

startSSPI

public void startSSPI()
               throws SQLException,
                      IOException

Respond to an authentication request from the back-end for SSPI authentication (AUTH_REQ_SSPI).

Specified by:

startSSPI in interface ISSPIClient

Throws:

SQLException - on SSPI authentication handshake failure

IOException - on network I/O issues

continueSSPI

public void continueSSPI(int msgLength)
                  throws SQLException,
                         IOException

Continue an existing authentication conversation with the back-end in resonse to an authentication request of type AUTH_REQ_GSS_CONT.

Specified by:

continueSSPI in interface ISSPIClient

Parameters:

msgLength - Length of message to read, excluding length word and message type word

Throws:

SQLException - if something wrong happens

IOException - if something wrong happens

dispose

public void dispose()

Clean up native win32 resources after completion or failure of SSPI authentication. This SSPIClient instance becomes unusable after disposal.

Specified by:

dispose in interface ISSPIClient