001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.servlet.filters.compoundsessionid;
016    
017    import com.liferay.portal.kernel.servlet.WrapHttpServletRequestFilter;
018    import com.liferay.portal.kernel.servlet.filters.compoundsessionid.CompoundSessionIdServletRequest;
019    import com.liferay.portal.kernel.servlet.filters.compoundsessionid.CompoundSessionIdSplitterUtil;
020    import com.liferay.portal.servlet.filters.BasePortalFilter;
021    
022    import javax.servlet.FilterConfig;
023    import javax.servlet.http.HttpServletRequest;
024    import javax.servlet.http.HttpServletResponse;
025    
026    /**
027     * <p>
028     * See http://issues.liferay.com/browse/LPS-18587.
029     * </p>
030     *
031     * @author Michael C. Han
032     */
033    public class CompoundSessionIdFilter
034            extends BasePortalFilter implements WrapHttpServletRequestFilter {
035    
036            @Override
037            public HttpServletRequest getWrappedHttpServletRequest(
038                    HttpServletRequest request, HttpServletResponse response) {
039    
040                    return new CompoundSessionIdServletRequest(request);
041            }
042    
043            @Override
044            public void init(FilterConfig filterConfig) {
045                    super.init(filterConfig);
046    
047                    if (CompoundSessionIdSplitterUtil.hasSessionDelimiter()) {
048                            _filterEnabled = true;
049                    }
050                    else {
051                            _filterEnabled = false;
052                    }
053            }
054    
055            @Override
056            public boolean isFilterEnabled() {
057                    return _filterEnabled;
058            }
059    
060            private static boolean _filterEnabled;
061    
062    }