fi.arcusys.oulu.web.TaskManagerController.java Source code

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Here is the source code for fi.arcusys.oulu.web.TaskManagerController.java

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/**
 * $Id$
 * 
 * Copyright (C) 2011 Arcusys Oy - http://www.arcusys.fi/
 * 
 * This file is part of Arcusys Taskmanager.
 * 
 * Arcusys Taskmanager is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * Arcusys Taskmanager is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * 
 */

package fi.arcusys.oulu.web;

import java.util.Properties;

import javax.portlet.PortletSession;
import javax.portlet.RenderRequest;
import javax.portlet.RenderResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.portlet.bind.annotation.RenderMapping;

import com.liferay.portal.model.User;
import com.liferay.portal.service.UserServiceUtil;
import com.liferay.portal.util.PortalUtil;

import fi.arcusys.oulu.util.TaskUtil;
import fi.arcusys.oulu.util.Util;

/**
 * Handles the main task manager page
 * @author Jinhua Chen
 * May 11, 2011
 */
@Controller("taskManagerController")
@RequestMapping(value = "VIEW")
public class TaskManagerController {

    private Properties props;

    public TaskManagerController() {
        props = Util.loadProperties();
    }

    // --maps the incoming portlet request to this method   
    @RenderMapping
    public String home(RenderRequest request, RenderResponse response) {
        HttpServletRequest httpRequest = PortalUtil.getHttpServletRequest(request);
        HttpSession httpSession = httpRequest.getSession();
        httpSession.removeAttribute("currentPage");
        httpSession.removeAttribute("numPerPage");
        httpSession.removeAttribute("taskType");
        httpSession.removeAttribute("keyword");
        httpSession.removeAttribute("orderType");

        return "taskmanager";
    }

    @RenderMapping(params = "myaction=home")
    public String showHome(RenderResponse response) {

        return "taskmanager";
    }

    // -- @ModelAttribute here works as the referenceData method
    @ModelAttribute(value = "tokenStatus")
    public String model(RenderRequest request) {

        if (checkUserToken(request)) {
            return "VALID";
        } else {
            return "INVALID";
        }
    }

    /**
     * Checks user logged in or not, if logged in, verify the participant token
     * @param request
     * @return true if token is valid, otherwise false
     */
    public boolean checkUserToken(RenderRequest request) {
        String userid = null;
        String token = null;

        try {
            userid = request.getRemoteUser();

            if (userid != null) { // user is logged in
                User user = UserServiceUtil.getUserById(Long.parseLong(userid));
                String loginUsername = user.getLogin();
                PortletSession portletSession = request.getPortletSession();
                token = (String) portletSession.getAttribute("USER_token");

                if (token == null) {
                    String username = props.getProperty(Util.INTALIO_REALM) + loginUsername;
                    token = TaskUtil.getToken(username);
                    TaskUtil.removeToken(username);
                    portletSession.setAttribute("USER_token", token);
                    portletSession.setAttribute("USER_username", username);
                }
            }

        } catch (Exception e) {
            throw new RuntimeException(e);
        }

        return token != null;
    }

}