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.validhostname;
016    
017    import com.liferay.portal.kernel.servlet.TryFilter;
018    import com.liferay.portal.kernel.util.StringUtil;
019    import com.liferay.portal.servlet.filters.BasePortalFilter;
020    import com.liferay.portal.util.PortalUtil;
021    
022    import javax.servlet.http.HttpServletRequest;
023    import javax.servlet.http.HttpServletResponse;
024    
025    /**
026     * @author Shuyang Zhou
027     */
028    public class ValidHostNameFilter extends BasePortalFilter implements TryFilter {
029    
030            @Override
031            public Object doFilterTry(
032                            HttpServletRequest request, HttpServletResponse response)
033                    throws Exception {
034    
035                    String serverName = request.getServerName();
036    
037                    String validPortalDomain = PortalUtil.getValidPortalDomain(
038                            PortalUtil.getDefaultCompanyId(), serverName);
039    
040                    if (!StringUtil.equalsIgnoreCase(serverName, validPortalDomain)) {
041                            throw new RuntimeException("Invalid host name " + serverName);
042                    }
043    
044                    return null;
045            }
046    
047    }