package com.in28minutes.login;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.web.authentication.logout.SecurityContextLogoutHandler;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

@Controller
public class LogoutController {

	@RequestMapping(value = "/logout", method = RequestMethod.GET)
	public String logout(HttpServletRequest request,
			HttpServletResponse response) {
		Authentication auth = SecurityContextHolder.getContext()
				.getAuthentication();

		if (auth != null) {
			new SecurityContextLogoutHandler().logout(request, response, auth);
			request.getSession().invalidate();
		}
		return "redirect:/";
	}
}