org.apache.catalina.valves

Class SSLValve

java.lang.Object

org.apache.catalina.util.LifecycleBase

org.apache.catalina.util.LifecycleMBeanBase

org.apache.catalina.valves.ValveBase

org.apache.catalina.valves.SSLValve

All Implemented Interfaces:

MBeanRegistration, Contained, JmxEnabled, Lifecycle, Valve

public class SSLValve
extends ValveBase

When using mod_proxy_http, the client SSL information is not included in the protocol (unlike mod_jk and mod_proxy_ajp). To make the client SSL information available to Tomcat, some additional configuration is required. In httpd, mod_headers is used to add the SSL information as HTTP headers. In Tomcat, this valve is used to read the information from the HTTP headers and insert it into the request.

Note: Ensure that the headers are always set by httpd for all requests to prevent a client spoofing SSL information by sending fake headers.

In httpd.conf add the following:

 <IfModule ssl_module>
   RequestHeader set SSL_CLIENT_CERT "%{SSL_CLIENT_CERT}s"
   RequestHeader set SSL_CIPHER "%{SSL_CIPHER}s"
   RequestHeader set SSL_SESSION_ID "%{SSL_SESSION_ID}s"
   RequestHeader set SSL_CIPHER_USEKEYSIZE "%{SSL_CIPHER_USEKEYSIZE}s"
 </IfModule>
 

In server.xml, configure this valve under the Engine element in server.xml:

 <Engine ...>
   <Valve className="org.apache.catalina.valves.SSLValve" />
   <Host ... />
 </Engine>
 

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.catalina.Lifecycle

Lifecycle.SingleUse

Field Summary

Fields inherited from class org.apache.catalina.valves.ValveBase

asyncSupported, container, containerLog, next, sm

Fields inherited from class org.apache.catalina.util.LifecycleMBeanBase

mserver

Fields inherited from interface org.apache.catalina.Lifecycle

AFTER_DESTROY_EVENT, AFTER_INIT_EVENT, AFTER_START_EVENT, AFTER_STOP_EVENT, BEFORE_DESTROY_EVENT, BEFORE_INIT_EVENT, BEFORE_START_EVENT, BEFORE_STOP_EVENT, CONFIGURE_START_EVENT, CONFIGURE_STOP_EVENT, PERIODIC_EVENT, START_EVENT, STOP_EVENT

Constructor Summary

Constructors

Constructor and Description
SSLValve()

Method Summary

Modifier and Type	Method and Description
String	getSslCipherHeader()
String	getSslCipherUserKeySizeHeader()
String	getSslClientCertHeader()
String	getSslSessionIdHeader()
void	invoke(Request request, Response response) Perform request processing as required by this Valve.
String	mygetHeader(Request request, String header)
void	setSslCipherHeader(String sslCipherHeader)
void	setSslCipherUserKeySizeHeader(String sslCipherUserKeySizeHeader)
void	setSslClientCertHeader(String sslClientCertHeader)
void	setSslSessionIdHeader(String sslSessionIdHeader)

Methods inherited from class org.apache.catalina.valves.ValveBase

backgroundProcess, getContainer, getDomainInternal, getNext, getObjectNameKeyProperties, initInternal, isAsyncSupported, setAsyncSupported, setContainer, setNext, startInternal, stopInternal, toString

Methods inherited from class org.apache.catalina.util.LifecycleMBeanBase

destroyInternal, getDomain, getObjectName, postDeregister, postRegister, preDeregister, preRegister, register, setDomain, unregister

Methods inherited from class org.apache.catalina.util.LifecycleBase

addLifecycleListener, destroy, findLifecycleListeners, fireLifecycleEvent, getState, getStateName, init, removeLifecycleListener, setState, setState, start, stop

Methods inherited from class java.lang.Object

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

Constructor Detail

SSLValve

public SSLValve()

Method Detail

getSslClientCertHeader

public String getSslClientCertHeader()

setSslClientCertHeader

public void setSslClientCertHeader(String sslClientCertHeader)

getSslCipherHeader

public String getSslCipherHeader()

setSslCipherHeader

public void setSslCipherHeader(String sslCipherHeader)

getSslSessionIdHeader

public String getSslSessionIdHeader()

setSslSessionIdHeader

public void setSslSessionIdHeader(String sslSessionIdHeader)

getSslCipherUserKeySizeHeader

public String getSslCipherUserKeySizeHeader()

setSslCipherUserKeySizeHeader

public void setSslCipherUserKeySizeHeader(String sslCipherUserKeySizeHeader)

mygetHeader

public String mygetHeader(Request request,
                          String header)

invoke

public void invoke(Request request,
                   Response response)
            throws IOException,
                   ServletException

Description copied from interface: Valve

Perform request processing as required by this Valve.

An individual Valve MAY perform the following actions, in the specified order:

• Examine and/or modify the properties of the specified Request and Response.
• Examine the properties of the specified Request, completely generate the corresponding Response, and return control to the caller.
• Examine the properties of the specified Request and Response, wrap either or both of these objects to supplement their functionality, and pass them on.
• If the corresponding Response was not generated (and control was not returned, call the next Valve in the pipeline (if there is one) by executing getNext().invoke().
• Examine, but not modify, the properties of the resulting Response (which was created by a subsequently invoked Valve or Container).

A Valve MUST NOT do any of the following things:

• Change request properties that have already been used to direct the flow of processing control for this request (for instance, trying to change the virtual host to which a Request should be sent from a pipeline attached to a Host or Context in the standard implementation).
• Create a completed Response AND pass this Request and Response on to the next Valve in the pipeline.
• Consume bytes from the input stream associated with the Request, unless it is completely generating the response, or wrapping the request before passing it on.
• Modify the HTTP headers included with the Response after the getNext().invoke() method has returned.
• Perform any actions on the output stream associated with the specified Response after the getNext().invoke() method has returned.

Parameters:

request - The servlet request to be processed

response - The servlet response to be created

Throws:

IOException - if an input/output error occurs, or is thrown by a subsequently invoked Valve, Filter, or Servlet

ServletException - if a servlet error occurs, or is thrown by a subsequently invoked Valve, Filter, or Servlet