org.acegisecurity.ui.digestauth
Class DigestProcessingFilterEntryPoint

java.lang.Object
  org.acegisecurity.ui.digestauth.DigestProcessingFilterEntryPoint

All Implemented Interfaces:

AuthenticationEntryPoint, InitializingBean

public class DigestProcessingFilterEntryPoint
extends Object
implements AuthenticationEntryPoint, InitializingBean

Used by the SecurityEnforcementFilter to commence authentication via the DigestProcessingFilter.

The nonce sent back to the user agent will be valid for the period indicated by setNonceValiditySeconds(int). By default this is 300 seconds. Shorter times should be used if replay attacks are a major concern. Larger values can be used if performance is a greater concern. This class correctly presents the stale=true header when the nonce has expierd, so properly implemented user agents will automatically renegotiate with a new nonce value (ie without presenting a new password dialog box to the user).

Version:

$Id: DigestProcessingFilterEntryPoint.java,v 1.2 2005/11/17 00:56:10 benalex Exp $

Author:

Ben Alex

Constructor Summary

DigestProcessingFilterEntryPoint()

Method Summary

void	afterPropertiesSet()
void	commence(javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, AuthenticationException authException) Commences an authentication scheme.
String	getKey()
int	getNonceValiditySeconds()
String	getRealmName()
void	setKey(String key)
void	setNonceValiditySeconds(int nonceValiditySeconds)
void	setRealmName(String realmName)

Methods inherited from class java.lang.Object

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

Constructor Detail

DigestProcessingFilterEntryPoint

public DigestProcessingFilterEntryPoint()

Method Detail

setKey

public void setKey(String key)

getKey

public String getKey()

setNonceValiditySeconds

public void setNonceValiditySeconds(int nonceValiditySeconds)

getNonceValiditySeconds

public int getNonceValiditySeconds()

setRealmName

public void setRealmName(String realmName)

getRealmName

public String getRealmName()

afterPropertiesSet

public void afterPropertiesSet()
                        throws Exception

Specified by:

afterPropertiesSet in interface InitializingBean

Throws:

Exception

commence

public void commence(javax.servlet.ServletRequest request,
                     javax.servlet.ServletResponse response,
                     AuthenticationException authException)
              throws IOException,
                     javax.servlet.ServletException

Description copied from interface: AuthenticationEntryPoint

Commences an authentication scheme.

SecurityEnforcementFilter will populate the HttpSession attribute named AuthenticationProcessingFilter.ACEGI_SECURITY_TARGET_URL_KEY with the requested target URL before calling this method.

Implementations should modify the headers on the ServletResponse as necessary to commence the authentication process.

Specified by:

commence in interface AuthenticationEntryPoint

Parameters:

request - that resulted in an AuthenticationException

response - so that the user agent can begin authentication

authException - that caused the invocation

Throws:

IOException

javax.servlet.ServletException