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From Juergen Weber <>
Subject Re: Trouble obtaining JaaS login context from within EJB
Date Fri, 19 Jun 2009 14:23:59 GMT

Wouldn't that be SessionContext.getCallerPrincipal() ?


kistler wrote:
> Hello,
> I'm currently developing an Enterprise application which Comprises of a
> servlet and ejb for Geronimo 2.1 and I have secured the Ejb with a
> Security Realm configured to authenticate against a SQLLoginModule.  I'm
> confident that this is authenticating correctly as I have done negative
> and positive testing.
> I'm testing my ejb my connecting to it from a servlet as follows:
> 		CallbackHandler handler = new UserIdPasswordCallbackHandler(user,
> password);
> 		LoginContext ctx = new LoginContext("SecurityRealm",handler);
> 		ctx.login();
> This succeeds when supplied the correct credentials and throws exceptions
> with invalid credentials.
> I obtain a reference to the remote interface as follows:
> Properties prop=new Properties();
> 			prop.put(Context.INITIAL_CONTEXT_FACTORY,
> "org.apache.openejb.client.RemoteInitialContextFactory");
> 			prop.put("java.naming.provider.url", "ejbd://localhost:4201");
> 			Context context = new InitialContext(prop);
> Object o = context.lookup("SessionManagerBeanRemote");
> SessionManagerRemote remote = (SessionManagerRemote)o;
> This works correctly as I am able to call my remote ejb methods!
> Now - the piece I am missing is I need to be able to obtain the current
> Subject that was authenticated.  ie - I need to know the identity of the
> user that has been authenticated to use this ejb and is invoking it.  So
> if joe was authenticated to use the SessionManager - I need to be able to
> obtain joe's login name.
> I believe if I was within a web container I'd be able to use the
> equivalent of:  HttpServletRequest.getUserPrincipal() ...  Can someone
> point me to a reference, decently documented example or something that
> will tell me what API I need to use?  I'm happy to do some reading but
> I've looked around quite a bit and I think I might be missing something... 
> There doesn't seem to be a clear reference to this is the standard
> geronimo documentation - only some lite discussion for web containers.
> Thanks in advance!
> -Keith

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