/**
 * Licensed to Apereo under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright ownership. Apereo
 * licenses this file to you 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 the
 * following location:
 *
 * <p>http://www.apache.org/licenses/LICENSE-2.0
 *
 * <p>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 org.apereo.portal.rest;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apereo.portal.utils.web.RemoteCookieCheckFilter;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;

@Controller
public class RemoteCookieCheckController {
    public static final String COOKIE_CHECK_REQUEST_MAPPING = "/cookiecheck";

    @RequestMapping(value = COOKIE_CHECK_REQUEST_MAPPING, method = RequestMethod.GET)
    public ModelAndView verifyCookiesEnabled(
            HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        boolean cookieFound = false;
        Cookie[] cookies = request.getCookies();

        if (cookies != null) {
            for (Cookie cookie : cookies) {
                if (cookie.getName().equalsIgnoreCase(RemoteCookieCheckFilter.COOKIE_NAME)) {
                    cookieFound = true;
                    break;
                }
            }
        }

        if (cookieFound) {
            String referer =
                    (String)
                            request.getSession()
                                    .getAttribute(RemoteCookieCheckFilter.REFERER_ATTRIBUTE);
            response.sendRedirect(referer);
            return null;
        } else {
            return new ModelAndView("/jsp/PortletError/cookies");
        }
    }
}