org.jahia.services.seo.urlrewrite.SessionidRemovalResponseWrapper.java Source code

Introduction

Here is the source code for org.jahia.services.seo.urlrewrite.SessionidRemovalResponseWrapper.java

Source

/**
 * This file is part of Jahia, next-generation open source CMS:
 * Jahia's next-generation, open source CMS stems from a widely acknowledged vision
 * of enterprise application convergence - web, search, document, social and portal -
 * unified by the simplicity of web content management.
 *
 * For more information, please visit http://www.jahia.com.
 *
 * Copyright (C) 2002-2012 Jahia Solutions Group SA. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * 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.
 *
 * As a special exception to the terms and conditions of version 2.0 of
 * the GPL (or any later version), you may redistribute this Program in connection
 * with Free/Libre and Open Source Software ("FLOSS") applications as described
 * in Jahia's FLOSS exception. You should have received a copy of the text
 * describing the FLOSS exception, and it is also available here:
 * http://www.jahia.com/license
 *
 * Commercial and Supported Versions of the program (dual licensing):
 * alternatively, commercial and supported versions of the program may be used
 * in accordance with the terms and conditions contained in a separate
 * written agreement between you and Jahia Solutions Group SA.
 *
 * If you are unsure which license is appropriate for your use,
 * please contact the sales department at sales@jahia.com.
 */

package org.jahia.services.seo.urlrewrite;

import org.apache.commons.lang.StringUtils;
import org.apache.oro.text.regex.PatternMatcher;
import org.jahia.settings.SettingsBean;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpServletResponseWrapper;
import java.util.regex.Pattern;

/**
 * Simple filter that removes the ;jsessionid string
 */
public class SessionidRemovalResponseWrapper extends HttpServletResponseWrapper {
    private HttpServletRequest request;

    private Pattern cleanPattern = Pattern
            .compile(";" + SettingsBean.getInstance().getJsessionIdParameterName() + "=[^\\?#]*");

    public SessionidRemovalResponseWrapper(HttpServletRequest request, HttpServletResponse response) {
        super(response);
        this.request = request;
    }

    @Override
    public String encodeURL(String url) {
        return clean(super.encodeURL(url));
    }

    @Override
    public String encodeUrl(String url) {
        return encodeURL(url);
    }

    /**
     * Remove all jsession parameter if set in the settings, or replace it by a macro marker if we are in a rendered page
     * macro in that case)
     * @param url
     * @return
     */
    private String clean(String url) {
        if (SettingsBean.getInstance().isDisableJsessionIdParameter() || isInRender()) {
            // Remove the jsessionid= part
            String s = ";" + SettingsBean.getInstance().getJsessionIdParameterName();
            if (url.contains(s)) {
                url = cleanPattern.matcher(url).replaceFirst("");
            }

            // If we are in jahia page, and jsession ids are not disabled, replace by a macro
            if (isInRender() && !SettingsBean.getInstance().isDisableJsessionIdParameter()
                    && !url.contains("##sessionid##")) {
                url += "##sessionid##";
            }
        }
        return url;
    }

    private boolean isInRender() {
        return request.getAttribute("currentNode") != null;
    }

}