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package com.sun.appserv;
import java.security.cert.X509Certificate;
import java.security.cert.CertificateException;
import jakarta.servlet.http.HttpServletRequest;
/**
* Abstract class allowing a backend appserver instance to retrieve information
* about the original client request that was intercepted by an SSL
* terminating proxy server (e.g., load balancer).
*
* An implementation of this abstract class inspects a given request for
* the custom request headers through which the proxy server communicates the
* information about the original client request to the appserver instance,
* and makes this information available to the appserver.
*
* This allows the appserver to work with any number of 3rd party SSL
* offloader implementations configured on the front-end web server, for
* which a corresponding ProxyHandler implementation has been configured
* on the backend appserver.
*/
public abstract class ProxyHandler {
/**
* Gets the SSL client certificate chain with which the client
* had authenticated itself to the SSL offloader, and which the
* SSL offloader has added as a custom request header on the
* given request.
*
* @param request The request from which to retrieve the SSL client
* certificate chain
*
* @return Array of java.security.cert.X509Certificate instances
* representing the SSL client certificate chain, or null if this
* information is not available from the given request
*
* @throws CertificateException if the certificate chain retrieved
* from the request header cannot be parsed
*/
public X509Certificate[] getSSLClientCertificateChain(
HttpServletRequest request)
throws CertificateException {
return null;
}
/**
* Returns the SSL keysize with which the original client request that
* was intercepted by the SSL offloader has been protected, and which
* the SSL offloader has added as a custom request header on the
* given request.
*
* @param request The request from which to retrieve the SSL key
* size
*
* @return SSL keysize, or -1 if this information is not available from
* the given request
*/
public int getSSLKeysize(HttpServletRequest request) {
return -1;
}
/**
* Gets the Internet Protocol (IP) address of the original client request
* that was intercepted by the proxy server.
*
* @param request The request from which to retrieve the IP address of the
* original client request
*
* @return IP address of the original client request, or null if this
* information is not available from the given request
*/
public String getRemoteAddress(HttpServletRequest request) {
return null;
}
}