getting ip address from webservice

[ivanator]

Hi,

I've developed and deployed some webservices using ws4ee in JBoss 4.0.3. Now I need to log some data. I specially need to save ip addresses from clients accessing my webservices.

Since that the implementation of a webservice is just a "normal" class, it's not clear to me how to access to the client request info from the code.

Any suggestion wellcome.

Thanks,

Iván

[sappenin]

You need to create an implementation of the javax.xml.rpc.handler.GenericHandler class, and intercept the web-services call before it makes it to your SEI.

So, create a handler class (separate from your SEI interface and impl). Makes sure this handler class extends GenericHandler (see above for correct package). You'll need to override the function "public QName[] getHeaders()" (because it's abstract in GenericHandler) so that it returns the QNames of the services you want "handled".

Mine looks like this (this is just the QName of each endpoint):

public class ExampleGenericHandler extends GenericHandler
{

@Override
public QName[] getHeaders()
{
String NAMESPACE = "http://com.example";
QName SERVICE_NAME = new QName(NAMESPACE, "MySEI_JSEService");

QName[] qNames = {SERVICE_NAME};
return qNames;
}
}

Next, in your webservices.xml descriptor that is deployed with your webservice, you'll want to include the handler definition inside of the port-component, like so:

<webservices
...

 <webservice-description>
<webservice-description-name>...</webservice-description-name>
 <wsdl-file>..._JSEService.wsdl</wsdl-file>
 ...
 <port-component>
 <port-component-name>PortComponent</port-component-name>
 <wsdl-port>ExamplePort</wsdl-port>
 <service-endpoint-interface>com.example.exampleInterface</service-endpoint-interface>
 <service-impl-bean>
 <servlet-link>Serlvet</servlet-link>
 </service-impl-bean>
 <handler>
 <handler-name>ExampleHanlder</handler-name>
 <handler-class>com.example.ExampleHandler</handler-class>
 </handler>
 </port-component>
 </webservice-description>
 </webservices>

If you already have a functional web-services SEI working, then you should already have everything in place to implement the above (including a webservices.xml file).

Finally, in your GenericHandler class, you can do something like this:

/* (non-Javadoc)
 * @see javax.xml.rpc.handler.GenericHandler#handleRequest(javax.xml.rpc.handler.MessageContext)
 */
 @Override
 public boolean handleRequest(MessageContext context)
 {
 //Output the IP address of the caller.
 String ip = (String) context.getProperty("remoteaddr");
 log.error("Caller IP: " + ip);

 return super.handleRequest(context);
 }

For more info about GenericHandlers, see: http://labs.jboss.com/portal/jbossws/user-guide/en/html/headers-handlers.html#handlers

Also, this post was helpful if you want to try to determine what all the properties can be found in MessageContext: http://www.jboss.com/index.html?module=bb&op=viewtopic&t=62299

[thomas.diesler]

http://labs.jboss.com/portal/jbossws/user-guide/en/html/endpoints.html#service-lifecycle

[romeufigueira]

What if one doesn't have that property listed (remoteaddr?)

public boolean handleRequest(MessageContext messageContext)
 {
 String IP = (String) messageContext.getProperty("remoteaddr");

 System.out.println("Remote IP: " + IP);

 Iterator propertyNames = messageContext.getPropertyNames( );
 while ( propertyNames.hasNext( ) )
 {
 String keyName = (String) propertyNames.next( );
 System.out.println("Key: " + keyName + " Val: " + messageContext.getProperty( keyName ).toString() );
 }
....
continues
....

The first one gives me null, and listing the properties shows no "remoteaddr".

2006-10-31 11:57:34,784 INFO [STDOUT] Remote IP: null
2006-10-31 11:57:34,784 INFO [STDOUT] Key: javax.xml.ws.servlet.request Val:org.apache.catalina.connector.RequestFacade@12e2fba
2006-10-31 11:57:34,784 INFO [STDOUT] Key: javax.xml.ws.servlet.context Val:org.jboss.ws.server.ServletEndpointContextImpl@11fc6b2
2006-10-31 11:57:34,784 INFO [STDOUT] Key: javax.xml.ws.servlet.response Val:org.apache.catalina.connector.ResponseFacade@31c43f
2006-10-31 11:57:34,784 INFO [STDOUT] Key: javax.xml.ws.servlet.session Val:org.apache.catalina.session.StandardSessionFacade@12dd1b8

Is there anything more to configure or am I missing something else in my calls?

Soft: Jboss AS 4.0.5, JBossWS 1.0.3 GA, Server Windows and HP-UX

[thomas.diesler]

javax.xml.ws.servlet.request should get you at the information you want.