br.com.sicva.seguranca.DirecionadorUsuario.java Source code

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Here is the source code for br.com.sicva.seguranca.DirecionadorUsuario.java

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package br.com.sicva.seguranca;

import java.io.IOException;
import java.util.Collection;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.web.DefaultRedirectStrategy;
import org.springframework.security.web.RedirectStrategy;
import org.springframework.security.web.WebAttributes;
import org.springframework.security.web.authentication.AuthenticationSuccessHandler;

/**
 *
 * @author Rodrigo
 */
public class DirecionadorUsuario implements AuthenticationSuccessHandler {

    protected Log logger = LogFactory.getLog(this.getClass());

    private RedirectStrategy redirectStrategy = new DefaultRedirectStrategy();

    @Override
    public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response,
            Authentication authentication) throws IOException {

        handle(request, response, authentication);
        clearAuthenticationAttributes(request);
    }

    protected void handle(HttpServletRequest request, HttpServletResponse response, Authentication authentication)
            throws IOException {

        String targetUrl = determineTargetUrl(authentication);

        if (response.isCommitted()) {
            logger.debug("Response has already been committed. Unable to redirect to " + targetUrl);
            return;
        }

        redirectStrategy.sendRedirect(request, response, targetUrl);
    }

    protected String determineTargetUrl(Authentication authentication) {
        boolean isAtendente = false;
        boolean isAdmin = false;
        boolean isEnfermeiro = false;
        Collection<? extends GrantedAuthority> authorities = authentication.getAuthorities();
        for (GrantedAuthority grantedAuthority : authorities) {
            if (grantedAuthority.getAuthority().equals("ROLE_ATENDENTE")) {
                isAtendente = true;
                break;
            } else if (grantedAuthority.getAuthority().equals("ROLE_ADMINISTRADOR")) {
                isAdmin = true;
                break;
            } else if (grantedAuthority.getAuthority().equals("ROLE_ENFERMEIRO")) {
                isEnfermeiro = true;
                break;
            }
        }

        if (isAtendente) {
            return "/atendente/index.xhtml";
        } else if (isAdmin) {
            return "/admin/index.xhtml";
        } else if (isEnfermeiro) {
            return "/enfermeiro/index.xhtml";
        } else {
            throw new IllegalStateException();
        }
    }

    protected void clearAuthenticationAttributes(HttpServletRequest request) {
        HttpSession session = request.getSession(false);
        if (session == null) {
            return;
        }
        session.removeAttribute(WebAttributes.AUTHENTICATION_EXCEPTION);
    }

    public void setRedirectStrategy(RedirectStrategy redirectStrategy) {
        this.redirectStrategy = redirectStrategy;
    }

    protected RedirectStrategy getRedirectStrategy() {
        return redirectStrategy;
    }
}