package com.library.intercepter;

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

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;

public class LoginHandlerIntercepter extends HandlerInterceptorAdapter {

	private static final Logger logger = LogManager.getLogger(LoginHandlerIntercepter.class);

	private static final String[] IGNORE_URI = { "/login.cc", "/logout.cc", "/register.cc" };

	@Override
	public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
		String uri = request.getRequestURI();
		for (String s : IGNORE_URI) {
			if (uri.contains(s)) {
				return true;
			}
		}
		Object user = request.getSession().getAttribute("user");
		if (user == null) {
			logger.info("Session已失效，请重新登录。");
			response.setCharacterEncoding("UTF-8");
			response.sendRedirect("login.cc");
			return false;
		} else {
			return true;
		}
	}

	@Override
	public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {

	}

	@Override
	public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {

	}

}