Registering an AuthenticationListener

[Tauren Mills]

Where can I find some sample code that illustrates the best way to
register an AuthenticationListener? It seems that
AuthenticationListenerRegistrar no longer exists. I would prefer to
see how to do it using Spring for configuration instead of INI. Is
there a sample project that illustrates how to do this?

Also, I'm unclear on how to best customize the filter. My web.xml
specifies a DelegatingFilterProxy, which I believe is then utilizing a
ShiroFilterFactoryBean. My intent is to write a custom doFilter method
that excludes certain paths, such as /css, /img, and /js.  Should my
custom filter extend some class? And how do I wire up my custom
filter? Do I specify something as the targetBeanName init param?

Alternatively, is there a different, simpler, or better way to EXCLUDE
certain paths from being handled by the ShiroFilter?  For instance, is
there a way to do this purely with configuration inside of the web.xml
alone?

Lastly, what does the targetFilterLifecycle init param do?

Here's the pertinent part of my spring ShiroFilter config:

    <bean id="ShiroFilter"
class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">
        <property name="securityManager" ref="securityManager"/>
    </bean>

Here are my current filter mappings:

    <filter>
        <filter-name>HibernateFilter</filter-name>
        
<filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>
    </filter>
    <filter>
        <filter-name>ShiroFilter</filter-name>
        
<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
<!--
            <init-param>
                <param-name>targetFilterLifecycle</param-name>
                <param-value>true</param-value>
            </init-param>
-->
    </filter>
    <filter>
        <filter-name>WicketFilter</filter-name>
        
<filter-class>org.apache.wicket.protocol.http.WicketFilter</filter-class>
        <init-param>
            <param-name>applicationFactoryClassName</param-name>
            
<param-value>org.apache.wicket.spring.SpringWebApplicationFactory</param-value>
        </init-param>
    </filter>

    <filter-mapping>
        <filter-name>HibernateFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <filter-mapping>
        <filter-name>ShiroFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <filter-mapping>
        <filter-name>WicketFilter</filter-name>
        <url-pattern>/*</url-pattern>
        <dispatcher>REQUEST</dispatcher>
        <dispatcher>ERROR</dispatcher>
    </filter-mapping>

Thanks,
Tauren