com.edgenius.wiki.integration.rest.ShellValidatorServlet.java Source code

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Here is the source code for com.edgenius.wiki.integration.rest.ShellValidatorServlet.java

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/* 
 * =============================================================
 * Copyright (C) 2007-2011 Edgenius (http://www.edgenius.com)
 * =============================================================
 * License Information: http://www.edgenius.com/licensing/edgenius/2.0/
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2.0
 * as published by the Free Software Foundation.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 *
 * http://www.gnu.org/licenses/gpl.txt
 *  
 * ****************************************************************
 */
package com.edgenius.wiki.integration.rest;

import java.io.IOException;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

import com.edgenius.wiki.Shell;
import com.edgenius.wiki.model.Page;
import com.edgenius.wiki.model.Space;
import com.edgenius.wiki.service.PageService;
import com.edgenius.wiki.service.SpaceService;

/**
 *  *
 * This Servlet copes with some shell validation service:
 * <li>Accept shell sky from Shell</li>
 * <li>Space deletion confirmation</li>
 * <li>Page deletion confirmation</li>
 * <li></li>
 * @author Dapeng.Ni
 */
public class ShellValidatorServlet extends HttpServlet {
    private static final Logger log = LoggerFactory.getLogger(ShellValidatorServlet.class);
    private static final long serialVersionUID = 2055170482931420558L;

    private SpaceService spaceService;
    private PageService pageService;

    @Override
    public void service(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        //shell key 
        String key = request.getParameter("key");
        //page remove confirm request
        String pageUuid = request.getParameter("puuid");
        //space remove confirm request
        String spaceUname = request.getParameter("uname");

        if (!StringUtils.isEmpty(key)) {
            log.info("Shell validation for shell key...");
            Shell.updateShellKey(key);
        } else if (!StringUtils.isEmpty(pageUuid)) {
            log.info("Page remove confirm request:{}", pageUuid);
            Page page = getPageServiceBean().getCurrentPageByUuid(pageUuid);
            if (page == null)
                response.getWriter().print(pageUuid);
            else
                response.getWriter().print("Faked deleted request on page.");

        } else if (!StringUtils.isEmpty(spaceUname)) {
            log.info("Space remove confirm request:{}", spaceUname);
            Space space = getSpaceServiceBean().getSpaceByUname(spaceUname);
            if (space == null || space.containExtLinkType(Space.EXT_LINK_SHELL_DISABLED))
                response.getWriter().print(spaceUname);
            else
                response.getWriter().print("Faked deleted request on space");
        }
    }

    private PageService getPageServiceBean() {
        if (pageService == null) {
            ServletContext context = this.getServletContext();
            ApplicationContext ctx = WebApplicationContextUtils.getRequiredWebApplicationContext(context);
            pageService = (PageService) ctx.getBean(PageService.SERVICE_NAME);
        }
        return pageService;
    }

    private SpaceService getSpaceServiceBean() {
        if (spaceService == null) {
            ServletContext context = this.getServletContext();
            ApplicationContext ctx = WebApplicationContextUtils.getRequiredWebApplicationContext(context);
            spaceService = (SpaceService) ctx.getBean(SpaceService.SERVICE_NAME);
        }
        return spaceService;
    }

}