adapting BodyGuard project (Facelets EL functions) to work with spring security 3.x

SecurityFunctions.java

package br.eti.faces.facelets.bodyguard.el;

import java.util.Arrays;
import java.util.List;

import org.springframework.security.core.Authentication;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.UserDetails;

public class SecurityFunctions {

	//Internal use code
	private static Authentication getAuthentication() {

		if (SecurityContextHolder.getContext() != null) {
			return SecurityContextHolder.getContext().getAuthentication();
		}

		return null;
	}

	private static boolean isGranted(String roles, boolean checkAllRoles) {

		Authentication auth = getAuthentication();

		if (auth == null)
			return false;

		if (roles == null)
			return false;
		
		List desiredRoles = Arrays.asList(roles.split(","));
		if(checkAllRoles) {
			int checkedRoles = 0;
			for (GrantedAuthority authority : auth.getAuthorities()) {
				if (desiredRoles.contains(authority.getAuthority())) {
					checkedRoles++;
				}
			}
			return (auth.getAuthorities().size() == checkedRoles);
		}
		else {
			for (GrantedAuthority authority : auth.getAuthorities()) {
				if (desiredRoles.contains(authority.getAuthority())) {
					return true;
				}
			}
		}

		return false;
	}
	
	//EL Functions
	public static boolean isUserInAnyRoles(String roles) {
		return isGranted(roles, false);
	}

	public static boolean isUserNotInRoles(String roles) {
		return ! isGranted(roles, false);
	}

	public static boolean isUserInAllRoles(String roles) {
		return isGranted(roles, true);
	}
	
	public static boolean isAuthenticated() {
		
		String user = remoteUser(); 
		
		return (user != null && ! user.equals("roleAnonymous"));		
	}
	
	public static String remoteUser() {

		Authentication auth = getAuthentication();

		if (auth == null)
			return null;
		
		Object principal = auth.getPrincipal();
		
		if(principal instanceof String)
			return (String) auth.getPrincipal();
		else
			return ((UserDetails) auth.getPrincipal())
				.getUsername();
	}
}

more informations, http://faces.eti.br/2008/11/09/bodyguard-facelets-el-functions-for-spring-security/

rponte, descobri um bug..
Quando é feito qualquer submit ele da uma ELException dizendo que a function não existe :'(

Checaremos isso na segunda-feira :-)

Será que vale colocar a lib github?