com.baifendian.swordfish.webserver.interceptor.LoginInterceptor.java Source code

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Here is the source code for com.baifendian.swordfish.webserver.interceptor.LoginInterceptor.java

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/*
 * Copyright (C) 2017 Baifendian Corporation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *          http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.baifendian.swordfish.webserver.interceptor;

import com.baifendian.swordfish.dao.mapper.UserMapper;
import com.baifendian.swordfish.dao.model.Session;
import com.baifendian.swordfish.dao.model.User;
import com.baifendian.swordfish.webserver.service.SessionService;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.httpclient.HttpStatus;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

/**
 * ,  "/login" ??, 
 */
public class LoginInterceptor implements HandlerInterceptor {
    private static Logger logger = LoggerFactory.getLogger(LoginInterceptor.class.getName());

    @Autowired
    private SessionService sessionService;

    @Autowired
    private UserMapper userMapper;

    @Override
    public boolean preHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse,
            Object o) throws Exception {
        // ? session
        Session session = sessionService.getSessionFromRequest(httpServletRequest);

        // session ?,  false
        if (session == null) {
            httpServletResponse.setStatus(HttpStatus.SC_UNAUTHORIZED);
            return false;
        }

        logger.info("session is: {}", session.getId());

        // ?,  session
        User user = userMapper.queryById(session.getUserId());

        if (user == null) {
            httpServletResponse.setStatus(HttpStatus.SC_UNAUTHORIZED);
            return false;
        }

        httpServletRequest.setAttribute("session.user", user);

        return true;
    }

    @Override
    public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o,
            ModelAndView modelAndView) throws Exception {
        logger.info(httpServletResponse.toString());
    }

    @Override
    public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse,
            Object o, Exception e) throws Exception {
    }
}