org.springframework.security.providers.cas
Class CasAuthenticationProvider

java.lang.Object
  org.springframework.security.providers.cas.CasAuthenticationProvider

All Implemented Interfaces:

InitializingBean, MessageSourceAware, AuthenticationProvider

public class CasAuthenticationProvider
extends Object
implements AuthenticationProvider, InitializingBean, MessageSourceAware

An AuthenticationProvider implementation that integrates with JA-SIG Central Authentication Service (CAS).

This AuthenticationProvider is capable of validating UsernamePasswordAuthenticationToken requests which contain a principal name equal to either CasProcessingFilter.CAS_STATEFUL_IDENTIFIER or CasProcessingFilter.CAS_STATELESS_IDENTIFIER. It can also validate a previously created CasAuthenticationToken.

Version:

$Id$

Author:

Ben Alex

Field Summary

protected MessageSourceAccessor

messages

Constructor Summary

CasAuthenticationProvider()

Method Summary

void	afterPropertiesSet()
Authentication	authenticate(Authentication authentication) Performs authentication with the same contract as AuthenticationManager.authenticate(Authentication).
protected String	getKey()
StatelessTicketCache	getStatelessTicketCache()
protected org.jasig.cas.client.validation.TicketValidator	getTicketValidator()
protected UserDetailsService	getUserDetailsService()
protected UserDetails	loadUserByAssertion(org.jasig.cas.client.validation.Assertion assertion) Template method for retrieving the UserDetails based on the assertion.
void	setKey(String key)
void	setMessageSource(MessageSource messageSource)
void	setServiceProperties(ServiceProperties serviceProperties)
void	setStatelessTicketCache(StatelessTicketCache statelessTicketCache)
void	setTicketValidator(org.jasig.cas.client.validation.TicketValidator ticketValidator)
void	setUserDetailsService(UserDetailsService userDetailsService)
boolean	supports(Class authentication) Returns true if this AuthenticationProvider supports the indicated Authentication object.

Methods inherited from class java.lang.Object

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

Field Detail

messages

protected MessageSourceAccessor messages

Constructor Detail

CasAuthenticationProvider

public CasAuthenticationProvider()

Method Detail

afterPropertiesSet

public void afterPropertiesSet()
                        throws Exception

Specified by:

afterPropertiesSet in interface InitializingBean

Throws:

Exception

authenticate

public Authentication authenticate(Authentication authentication)
                            throws AuthenticationException

Description copied from interface: AuthenticationProvider

Performs authentication with the same contract as AuthenticationManager.authenticate(Authentication).

Specified by:

authenticate in interface AuthenticationProvider

Parameters:

authentication - the authentication request object.

Returns:

a fully authenticated object including credentials. May return null if the AuthenticationProvider is unable to support authentication of the passed Authentication object. In such a case, the next AuthenticationProvider that supports the presented Authentication class will be tried.

Throws:

AuthenticationException - if authentication fails.

loadUserByAssertion

protected UserDetails loadUserByAssertion(org.jasig.cas.client.validation.Assertion assertion)

Template method for retrieving the UserDetails based on the assertion. Default is to call configured userDetailsService and pass the username. Deployers can override this method and retrieve the user based on any criteria they desire.

Parameters:

assertion - The CAS Assertion.

getUserDetailsService

protected UserDetailsService getUserDetailsService()

setUserDetailsService

public void setUserDetailsService(UserDetailsService userDetailsService)

setServiceProperties

public void setServiceProperties(ServiceProperties serviceProperties)

getKey

protected String getKey()

setKey

public void setKey(String key)

getStatelessTicketCache

public StatelessTicketCache getStatelessTicketCache()

getTicketValidator

protected org.jasig.cas.client.validation.TicketValidator getTicketValidator()

setMessageSource

public void setMessageSource(MessageSource messageSource)

Specified by:

setMessageSource in interface MessageSourceAware

setStatelessTicketCache

public void setStatelessTicketCache(StatelessTicketCache statelessTicketCache)

setTicketValidator

public void setTicketValidator(org.jasig.cas.client.validation.TicketValidator ticketValidator)

supports

public boolean supports(Class authentication)

Description copied from interface: AuthenticationProvider

Returns true if this AuthenticationProvider supports the indicated Authentication object.

Returning true does not guarantee an AuthenticationProvider will be able to authenticate the presented instance of the Authentication class. It simply indicates it can support closer evaluation of it. An AuthenticationProvider can still return null from the AuthenticationProvider.authenticate(Authentication) method to indicate another AuthenticationProvider should be tried.

Selection of an AuthenticationProvider capable of performing authentication is conducted at runtime the ProviderManager.

Specified by:

supports in interface AuthenticationProvider

Parameters:

authentication - DOCUMENT ME!

Returns:

true if the implementation can more closely evaluate the Authentication class presented