com.sharmila.hibernatespringsecurity.authentication.MyAuthenticationSuccessHandler.java Source code

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Here is the source code for com.sharmila.hibernatespringsecurity.authentication.MyAuthenticationSuccessHandler.java

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package com.sharmila.hibernatespringsecurity.authentication;

import java.io.IOException;
import java.util.Collection;
import javax.servlet.ServletException;
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;

public class MyAuthenticationSuccessHandler 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, ServletException {
        handle(request, response, authentication);
        clearAuthenticationAttribute(request);
    }

    protected void handle(HttpServletRequest request, HttpServletResponse response, Authentication authentication)
            throws IOException {
        String targetUrl = determineTargetUrl(authentication);
        if (response.isCommitted()) {
            logger.debug("Response already commited, cannot redirect to " + targetUrl);
            return;
        }
        redirectStrategy.sendRedirect(request, response, targetUrl);
    }

    protected String determineTargetUrl(Authentication authentication) {
        boolean isAdmin = false;
        boolean isUser = false;

        Collection<? extends GrantedAuthority> authoritites = authentication.getAuthorities();
        for (GrantedAuthority auth : authoritites) {
            if (auth.getAuthority().equals("ROLE_USER")) {
                isUser = true;
                break;
            }
            if (auth.getAuthority().equals("ROLE_ADMIN")) {
                isAdmin = true;
                break;
            }
        }
        if (isUser) {
            return "/userprofile";
        } else if (isAdmin) {
            return "/admin";
        } else {
            throw new IllegalStateException();
        }

    }

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

    public Log getLogger() {
        return logger;
    }

    public void setLogger(Log logger) {
        this.logger = logger;
    }

    public RedirectStrategy getRedirectStrategy() {
        return redirectStrategy;
    }

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

}