spring security PortResolverImpl 源码
spring security PortResolverImpl 代码
文件路径：/web/src/main/java/org/springframework/security/web/PortResolverImpl.java
/*
* 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
*
* https://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.springframework.security.web;
import jakarta.servlet.ServletRequest;
import org.springframework.util.Assert;
/**
* Concrete implementation of {@link PortResolver} that obtains the port from
* <tt>ServletRequest.getServerPort()</tt>.
* <p>
* 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 <code>ServletRequest.getServerPort()</code> 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
*/
public class PortResolverImpl implements PortResolver {
private PortMapper portMapper = new PortMapperImpl();
public PortMapper getPortMapper() {
return this.portMapper;
}
@Override
public int getServerPort(ServletRequest request) {
int serverPort = request.getServerPort();
String scheme = request.getScheme().toLowerCase();
Integer mappedPort = getMappedPort(serverPort, scheme);
return (mappedPort != null) ? mappedPort : serverPort;
}
private Integer getMappedPort(int serverPort, String scheme) {
if ("http".equals(scheme)) {
return this.portMapper.lookupHttpPort(serverPort);
}
if ("https".equals(scheme)) {
return this.portMapper.lookupHttpsPort(serverPort);
}
return null;
}
public void setPortMapper(PortMapper portMapper) {
Assert.notNull(portMapper, "portMapper cannot be null");
this.portMapper = portMapper;
}
}
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