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/* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.acegisecurity.util;

import org.springframework.beans.factory.InitializingBean;

import org.springframework.util.Assert;

import javax.servlet.ServletRequest;


/**
 * Concrete implementation of {@link PortResolver} that obtains the port from
 * ServletRequest.getServerPort().

This class is capable of handling the IE bug which results in an * incorrect URL being presented in the header subsequent to a redirect to a different scheme and port where the port * is not a well-known number (ie 80 or 443). Handling involves detecting an incorrect response from * ServletRequest.getServerPort() for the scheme (eg a HTTP request on 8443) and then determining the * real server port (eg HTTP request is really on 8080). The map of valid ports is obtained from the configured {@link * PortMapper}.

* * @author Ben Alex * @version $Id: PortResolverImpl.java 1496 2006-05-23 13:38:33Z benalex $ */ public class PortResolverImpl implements InitializingBean, PortResolver { //~ Instance fields ================================================================================================ private PortMapper portMapper = new PortMapperImpl(); //~ Methods ======================================================================================================== public void afterPropertiesSet() throws Exception { Assert.notNull(portMapper, "portMapper required"); } public PortMapper getPortMapper() { return portMapper; } public int getServerPort(ServletRequest request) { int result = request.getServerPort(); if ("http".equals(request.getScheme().toLowerCase())) { Integer http = portMapper.lookupHttpPort(new Integer(result)); if (http != null) { // IE 6 bug result = http.intValue(); } } if ("https".equals(request.getScheme().toLowerCase())) { Integer https = portMapper.lookupHttpsPort(new Integer(result)); if (https != null) { // IE 6 bug result = https.intValue(); } } return result; } public void setPortMapper(PortMapper portMapper) { this.portMapper = portMapper; } }




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