org.tinygroup.jspengine.appserv

Class ProxyHandler

java.lang.Object

org.tinygroup.jspengine.appserv.ProxyHandler

public abstract class ProxyHandler
extends Object

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.

Constructor Summary

Constructors

Constructor and Description
ProxyHandler()

Method Summary

Modifier and Type	Method and Description
String	getRemoteAddress(javax.servlet.http.HttpServletRequest request) Gets the Internet Protocol (IP) address of the original client request that was intercepted by the proxy server.
int	getRemotePort(javax.servlet.http.HttpServletRequest request) Gets the port of the client request that was intercepted by the proxy server.
X509Certificate[]	getSSLClientCertificateChain(javax.servlet.http.HttpServletRequest request) 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.
int	getSSLKeysize(javax.servlet.http.HttpServletRequest request) 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.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ProxyHandler

public ProxyHandler()

Method Detail

getSSLClientCertificateChain

public X509Certificate[] getSSLClientCertificateChain(javax.servlet.http.HttpServletRequest request)
                                               throws CertificateException

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.

Parameters:

request - The request from which to retrieve the SSL client certificate chain

Returns:

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

getSSLKeysize

public int getSSLKeysize(javax.servlet.http.HttpServletRequest request)

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.

Parameters:

request - The request from which to retrieve the SSL key size

Returns:

SSL keysize, or -1 if this information is not available from the given request

getRemoteAddress

public String getRemoteAddress(javax.servlet.http.HttpServletRequest request)

Gets the Internet Protocol (IP) address of the original client request that was intercepted by the proxy server.

Parameters:

request - The request from which to retrieve the IP address of the original client request

Returns:

IP address of the original client request, or null if this information is not available from the given request

getRemotePort

public int getRemotePort(javax.servlet.http.HttpServletRequest request)

Gets the port of the client request that was intercepted by the proxy server.

Parameters:

request - The request from which to retrieve the port of the original client request

Returns:

the port of the original client request, or -1 if this information is not available from the given request