org.apache.http.impl.auth

Class SPNegoScheme

java.lang.Object

org.apache.http.impl.auth.AuthSchemeBase

org.apache.http.impl.auth.GGSSchemeBase

org.apache.http.impl.auth.SPNegoScheme

All Implemented Interfaces:

AuthScheme, ContextAwareAuthScheme

@NotThreadSafe
public class SPNegoScheme
extends GGSSchemeBase

SPNEGO (Simple and Protected GSSAPI Negotiation Mechanism) authentication scheme.

Since:

4.2

Constructor Summary

Constructors

Constructor and Description
SPNegoScheme()
SPNegoScheme(boolean stripPort)

Method Summary

Methods

Modifier and Type	Method and Description
Header	authenticate(Credentials credentials, HttpRequest request, HttpContext context) Produces SPNEGO authorization Header based on token created by processChallenge.
protected byte[]	generateToken(byte[] input, String authServer)
String	getParameter(String name) There are no valid parameters for SPNEGO authentication so this method always returns null.
String	getRealm() The concept of an authentication realm is not supported by the Negotiate authentication scheme.
String	getSchemeName() Returns textual designation of the given authentication scheme.
boolean	isConnectionBased() Returns true.

Methods inherited from class org.apache.http.impl.auth.GGSSchemeBase

authenticate, generateGSSToken, getManager, isComplete, parseChallenge

Methods inherited from class org.apache.http.impl.auth.AuthSchemeBase

getChallengeState, isProxy, processChallenge, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

SPNegoScheme

public SPNegoScheme(boolean stripPort)

SPNegoScheme

public SPNegoScheme()

Method Detail

getSchemeName

public String getSchemeName()

Description copied from interface: AuthScheme

Returns textual designation of the given authentication scheme.

Returns:

the name of the given authentication scheme

authenticate

public Header authenticate(Credentials credentials,
                  HttpRequest request,
                  HttpContext context)
                    throws AuthenticationException

Produces SPNEGO authorization Header based on token created by processChallenge.

Specified by:

authenticate in interface ContextAwareAuthScheme

Overrides:

authenticate in class GGSSchemeBase

Parameters:

credentials - not used by the SPNEGO scheme.

request - The request being authenticated

context - HTTP context

Returns:

SPNEGO authentication Header

Throws:

AuthenticationException - if authentication string cannot be generated due to an authentication failure

generateToken

protected byte[] generateToken(byte[] input,
                   String authServer)
                        throws GSSException

Specified by:

generateToken in class GGSSchemeBase

Throws:

GSSException

getParameter

public String getParameter(String name)

There are no valid parameters for SPNEGO authentication so this method always returns null.

Parameters:

name - The name of the parameter to be returned

Returns:

null

getRealm

public String getRealm()

The concept of an authentication realm is not supported by the Negotiate authentication scheme. Always returns null.

Returns:

null

isConnectionBased

public boolean isConnectionBased()

Returns true. SPNEGO authentication scheme is connection based.

Returns:

true.