How to implement redirect to login-page with Java EE 6/Glassfish - authentication

Question

I'm trying to implement a redirect after login, which means I can't use glassfish built-in form authentication settings anymore that handles such things automatically. So first thing's first, I need to take control over redirecting to a login page when requesting a protected page. As I understand, this is done with a filter. Can this method be combined with security-constraints in web-xml? As it is, my filter is not called at all since glassfish just takes over and throws a basic loginbox at the user and ignores all filters even when no login configuration is set. Basicly, I have not managed to get a filter called before a user has logged in when security constraints are configured in glassfish.
Do I really need to take over security completly manually in a filter for this to work? If that's the case, the implementation seems horrible.
Using glassfish 3.1 with JSF 2 and a custom loginpage logging in manually with request.login.
web.xml.
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
<context-param>
<param-name>javax.faces.PROJECT_STAGE</param-name>
<param-value><!--Production-->Development</param-value>
</context-param>
<context-param>
<param-name>com.sun.faces.expressionFactory</param-name>
<param-value>de.odysseus.el.ExpressionFactoryImpl</param-value>
</context-param>
<filter-mapping>
<filter-name>LoginFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.jsf</url-pattern>
</servlet-mapping>
<filter>
<filter-name>LoginFilter</filter-name>
<filter-class>com.xdin.competence.jsf.util.LoginFilter</filter-class>
</filter>
<session-config>
<session-timeout>60</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>index.jsf</welcome-file>
</welcome-file-list>
<!--<error-page>
<exception-type>javax.faces.application.ViewExpiredException</exception-type>
<location>/viewExpired.jsf</location>
</error-page>-->
<security-constraint>
<display-name>ManagerArea</display-name>
<web-resource-collection>
<web-resource-name>ManagerArea</web-resource-name>
<description/>
<url-pattern>/manager/*</url-pattern>
</web-resource-collection>
<auth-constraint>
<description/>
<role-name>Manager-role</role-name>
<role-name>Admin-role</role-name>
</auth-constraint>
</security-constraint>
<security-constraint>
<display-name>EmployeeArea</display-name>
<web-resource-collection>
<web-resource-name>EmployeeConstraint</web-resource-name>
<description/>
<url-pattern>/user/Overview.jsf</url-pattern>
<url-pattern>/user/PrepareReport.jsf</url-pattern>
<url-pattern>/user/Search.jsf</url-pattern>
</web-resource-collection>
<auth-constraint>
<description/>
<role-name>Employee-role</role-name>
<role-name>Admin-role</role-name>
<role-name>Manager-role</role-name>
<role-name>OKIF-role</role-name>
</auth-constraint>
</security-constraint>
<security-constraint>
<display-name>AdminArea</display-name>
<web-resource-collection>
<web-resource-name>AdminCompetence</web-resource-name>
<description/>
<url-pattern>/admin/*</url-pattern>
</web-resource-collection>
<auth-constraint>
<description/>
<role-name>Admin-role</role-name>
</auth-constraint>
</security-constraint>
<security-constraint>
<display-name>UserArea</display-name>
<web-resource-collection>
<web-resource-name>UserConstraint</web-resource-name>
<description/>
<url-pattern>/index.jsf</url-pattern>
<url-pattern>/template.jsf</url-pattern>
<url-pattern>/user/UserDetail.jsf</url-pattern>
<url-pattern>/user/UserInformation.jsf</url-pattern>
<url-pattern>/print/*</url-pattern>
</web-resource-collection>
<auth-constraint>
<description/>
<role-name>Employee-role</role-name>
<role-name>Admin-role</role-name>
<role-name>Manager-role</role-name>
<role-name>OKIF-role</role-name>
</auth-constraint>
</security-constraint>
<!--<login-config>
<auth-method>FORM</auth-method>
<form-login-config>
<form-login-page>/login.jsf</form-login-page>
<form-error-page>/login.jsf</form-error-page>
</form-login-config>
</login-config>-->
<security-role>
<description/>
<role-name>Employee-role</role-name>
</security-role>
<security-role>
<description/>
<role-name>Admin-role</role-name>
</security-role>
<security-role>
<description/>
<role-name>Manager-role</role-name>
</security-role>
<security-role>
<description/>
<role-name>OKIF-role</role-name>
</security-role>
</web-app>
And my filter:
public class LoginFilter implements Filter {
private FilterConfig filterConfig = null;
public LoginFilter() {
}
#Override
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain)
throws IOException, ServletException {
HttpServletRequest req = (HttpServletRequest)request;
HttpServletResponse res = (HttpServletResponse)response;
if (req.getUserPrincipal() == null) {
req.getSession().setAttribute("from", req.getRequestURI());
res.sendRedirect("/login.jsf");
} else {
chain.doFilter(request, response);
}
}
#Override
public void destroy() {
}
#Override
public void init(FilterConfig filterConfig) {
this.filterConfig = filterConfig;
}
}

Answer 1

In your customized login form, add the following hidden field:
<input type="hidden" name="from" value="#{requestScope['javax.servlet.forward.request_uri']}" />
which you set in JSF as follows
#ManagedProperty(value="#{param.from}")
private String from;
and redirect as follows in login action method
if (from != null) {
externalContext.redirect(from);
}
No need for a Filter.