001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * The contents of this file are subject to the terms of the Liferay Enterprise
005     * Subscription License ("License"). You may not use this file except in
006     * compliance with the License. You can obtain a copy of the License by
007     * contacting Liferay, Inc. See the License for the specific language governing
008     * permissions and limitations under the License, including but not limited to
009     * distribution rights of the Software.
010     *
011     *
012     *
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    }