[jboss-dev] pluggable auth-method
Sergey Beryozkin
sberyozk at redhat.com
Wed Aug 25 07:17:28 EDT 2010
Just FYI, org.apache.catalina.authenticator.AuthenticatorBase shipped with
JBossWeb (3.0-Beta5 and the one used in JBossAS built from the trunk) does not match
any of the Tomcat AuthenticatorBase classes documented publicly, at least since Tomcat 4.0
JBossWeb expects that an abstract AuthenticatorBase.authenticate method has the following signature :
protected abstract boolean authenticate(org.apache.catalina.connector.Request request,
javax.servlet.HttpServletResponse response,
org.apache.catalina.deploy.LoginConfig config) throws IOException;
cheers, Sergey
----- "Sergey Beryozkin" <sberyozk at redhat.com> wrote:
> Thanks for the links.
>
> I checked a JBossAS Tomcat integration module earlier on,
> at https://svn.jboss.org/repos/jbossas/tomcat
>
> and saw the references to jbossweb on forums, but still thought
> catalina.jar was used somehow internally, thus was curious what the
> corresponding version was.
>
> At the moment I'm just doing a 'provided' scope dependency on catalina
> 6.0.28, and I'm assuming it will just work in JBoss but I guess the
> demo will be better off with depending on jbossweb.
>
> cheers, Sergey
>
> ----- "Brian Stansberry" <brian.stansberry at redhat.com> wrote:
>
> > JBoss AS uses JBoss Web (derived from Tomcat), not Tomcat itself.
> >
> >
> https://repository.jboss.org/nexus/content/repositories/public-jboss/org/jboss/web/jbossweb/3.0.0-beta-6/
> >
> > is the location of the version currently used in AS trunk.
> >
> > https://svn.jboss.org/repos/jbossas/trunk/component-matrix/pom.xml
> is
> >
> > the file in the AS trunk that defines that dependency.
> >
> > On 7/15/10 10:23 AM, Sergey Beryozkin wrote:
> > > Well, this is quite obvious, I can quess that one :-)
> > > Which version of Catalina ? Though probably any in the 5.x range
> > will do, just not sure if AS 6.0 uses Catalina 6.x or not
> > >
> > > Cheers, Sergey
> > >
> > > ----- "Anil Saldhana"<Anil.Saldhana at redhat.com> wrote:
> > >
> > >> Sergey,
> > >> extend Tomcat AuthenticatorBase class for your authenticator.
> > It
> > >> should have available in the catalina jar.
> > >>
> > >> Cheers.
> > >>
> > >> On 07/15/2010 09:20 AM, Sergey Beryozkin wrote:
> > >>> Hi Anil
> > >>>
> > >>>
> > >>> ----- "Anil Saldhana"<Anil.Saldhana at redhat.com> wrote:
> > >>>
> > >>>
> > >>>> The login modules happen late in the container security
> sequence
> > >> and
> > >>>> have limited access to the network message etc. They can only
> > say
> > >>>> yes/no to authentication. But they cannot do some of the
> > redirects
> > >> or
> > >>>>
> > >>>> other extra steps that are needed in mechanisms outside of the
> > >> servlet
> > >>>>
> > >>>> spec mechanisms (form, client-cert, basic,digest). SAML,
> > >>>> OpenID/OAuth
> > >>>> etc may need access to the network message (http message) and
> > may
> > >> have
> > >>>>
> > >>>> to redirect the request to an external identity provider. In
> > >> these
> > >>>> situations, you do container integration (in the case of
> tomcat,
> > it
> > >> is
> > >>>>
> > >>>> via authenticators).
> > >>>>
> > >>>> Ideally, you should be doing JSR-196 which will provide you the
> > >>>> pluggable server authentication modules and can stack modules
> > just
> > >> as
> > >>>>
> > >>>> you do with login modules.
> > >>>>
> > >>>> We have support for JSR-196 in AS6 which needs to be taken
> > further
> > >>>> before EE6 certification.
> > >>>> http://anil-identity.blogspot.com/search/label/jsr-196
> > >>>>
> > >>>>
> > >>> thanks for all the info, I will experiment with Athenticators,
> no
> > >> redirection will be needed in cases where they should
> > >>> enforce that a given OAuth consumer is a valid one, but I'd like
> > to
> > >> try them too...
> > >>>
> > >>> How to figure out which catalina/tomcat dependency should be
> used
> > >> for writing a custom Authenticator to be used in JBossAS 6.0
> > >> deployments ?
> > >>>
> > >>> thanks, Sergey
> > >>>
> > >>>
> > >>>
> > >>>> On 07/14/2010 11:17 AM, Sergey Beryozkin wrote:
> > >>>>
> > >>>>> Hi
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>> For OAuth there are a few issues:
> > >>>>>>
> > >>>>>> 1. It has specific headers.
> > >>>>>> 2. You create "secrets" on the fly which are used to
> > >> authenticate
> > >>>>>>
> > >>>> and
> > >>>>
> > >>>>>> authorize requests.
> > >>>>>>
> > >>>>>>
> > >>>>>>
> > >>>>> Regarding 2: This is just one approach which the RestEasy
> > >>>>>
> > >>>> oauth-push-messaging takes, but one can imagine
> > >>>>
> > >>>>> the administrator registering the OAuth consumers representing
> > >> say
> > >>>>>
> > >>>> messaging services in advance.
> > >>>>
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>> Maybe its best to first iterate on an Authenticator, then
> move
> > >>>>>>
> > >>>> logic
> > >>>>
> > >>>>>> up
> > >>>>>> the stack once you get a prototype going? I don't know how
> > >> Sergey
> > >>>>>> likes
> > >>>>>> to work :)
> > >>>>>>
> > >>>>>>
> > >>>>> Well, my own problem so far is that I doubt the necessity of
> > >>>>>
> > >>>> introducing a role-based
> > >>>>
> > >>>>> control access in a push-messaging case given the way the
> > current
> > >>>>>
> > >>>> solution works.
> > >>>>
> > >>>>> Specifically, a subscriber needs to grant the messaging
> service
> > a
> > >>>>>
> > >>>> permission to access a destination URI using a (domain)
> > >> admin-level
> > >>>> invocation on the message receiver; in other words the
> > subscriber
> > >> can
> > >>>> not just tell the messaging service to push to some arbitrary
> > >> server,
> > >>>> the subscriber needs to control that specific URI space on that
> > >>>> server; it is really the subscriber's space in the end of the
> > day.
> > >>>>
> > >>>>> So it is an admin-level decision which is enforced by the
> OAuth
> > >>>>>
> > >>>> filter anyway - by authenticating (by ensuring current OAuth
> > >> client_id
> > >>>> matches the records and checking the signature the secret) and
> > >>>> validating that the request URI matches the one specified by
> the
> > >> admin
> > >>>> (subscriber) at the previous step.
> > >>>>
> > >>>>> Thus it is not obvious to me why it is worth introducing
> > another
> > >>>>>
> > >>>> authorization layer, at least given the way the push-messaging
> > >> demo
> > >>>> works at the moment. And when I'm in doubt I'm really working
> > very
> > >>>> slowly, sorry, probably not a good thing to say publicly :-)
> > >>>>
> > >>>>> Where I can see the login modules may be introduced is when we
> > >> have
> > >>>>>
> > >>>> OAuth consumers registered well in advance and say the
> > >> administrator
> > >>>> allocates roles to various consumers using nice UI and then we
> > have
> > >> a
> > >>>> case where some consumers may access one (resource) service
> > method
> > >> and
> > >>>> some other consumers can access some other method only. It is
> > not
> > >> the
> > >>>> case with the push-messaging demo though.
> > >>>>
> > >>>>> cheers, Sergey
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>> Chris Bredesen wrote:
> > >>>>>>
> > >>>>>>
> > >>>>>>> Yes.
> > >>>>>>>
> > >>>>>>> Authenticator is a Catalina/Web construct that delegates to
> a
> > >>>>>>>
> > >>>> Realm
> > >>>>
> > >>>>>>>
> > >>>>>>>
> > >>>>>>
> > >>>>>>
> > >>>>>>> (Catalina construct) that, in JBAS is backed by LoginModules
> > >>>>>>>
> > >>>> (JAAS
> > >>>>
> > >>>>>>> constructs, JBoss implementations).
> > >>>>>>>
> > >>>>>>> JAAS LoginModules are constrained by their own API which
> > means
> > >>>>>>>
> > >>>> they
> > >>>>
> > >>>>>>>
> > >>>>>>>
> > >>>>>> get
> > >>>>>>
> > >>>>>>
> > >>>>>>> access to only certain callbacks (username, password, etc)
> > and
> > >>>>>>>
> > >>>> have
> > >>>>
> > >>>>>>>
> > >>>>>>>
> > >>>>>> no
> > >>>>>>
> > >>>>>>
> > >>>>>>> knowledge of the Servlet API. You can do authentication in
> > an
> > >>>>>>> Authenticator but that's not portable to other
> non-Tomcat/JBW
> > >>>>>>> environments. The naming is a bit confusing IMO. It made
> > >> sense
> > >>>>>>>
> > >>>> for
> > >>>>
> > >>>>>>>
> > >>>>>>>
> > >>>>>>
> > >>>>>>
> > >>>>>>> Tomcat but adds confusion in JBAS.
> > >>>>>>>
> > >>>>>>> You don't need to worry about writing an Authenticator
> unless
> > >> you
> > >>>>>>>
> > >>>>>>>
> > >>>>>> need
> > >>>>>>
> > >>>>>>
> > >>>>>>> access to something that you don't already get from the
> > >> existing
> > >>>>>>> Authenticators, such as cookies, etc.
> > >>>>>>>
> > >>>>>>> -CB
> > >>>>>>>
> > >>>>>>> On 07/14/2010 10:53 AM, Bill Burke wrote:
> > >>>>>>>
> > >>>>>>>
> > >>>>>>>> Just guessing,
> > >>>>>>>>
> > >>>>>>>> Isn't the login module responsible for the actual
> > >> authentication
> > >>>>>>>>
> > >>>>>>>>
> > >>>>>> and
> > >>>>>>
> > >>>>>>
> > >>>>>>>> authorization? Tomcat authenticator is just responsible
> for
> > >>>>>>>>
> > >>>>>>>>
> > >>>>>> extracting
> > >>>>>>
> > >>>>>>
> > >>>>>>>> header info?
> > >>>>>>>>
> > >>>>>>>> Sergey Beryozkin wrote:
> > >>>>>>>>
> > >>>>>>>>
> > >>>>>>>>> Hi
> > >>>>>>>>>
> > >>>>>>>>>
> > >>>>>>>>>
> > >>>>>>>>>> You can achieve by writing a tomcat authenticator and
> > >> putting
> > >>>>>>>>>>
> > >>>> it
> > >>>>
> > >>>>>>>>>>
> > >>>>>>>>>>
> > >>>>>> in
> > >>>>>>
> > >>>>>>
> > >>>>>>>>>> WEB-INF/context.xml (JBAS) or META-INF/context.xml
> > (tomcat).
> > >>>>>>>>>>
> > >>>>>>>>>> The auth-name is a string defined in the servlet spec.
> > >>>>>>>>>>
> > >>>>>>>>>>
> > >>>>>>>>>>
> > >>>>>>>>> thanks for the tip.
> > >>>>>>>>>
> > >>>>>>>>> What is the difference between writing a custom Tomcat
> > >>>>>>>>>
> > >>>>>>>>>
> > >>>>>> authenticator and a custom LoginModule, example,
> > >>>>>>
> > >>>>>>
> > >>>>>>>>>
> > >>>>>>>>>
> > >>>>>>
> > >>>>
> > >>
> >
> org.picketlink.identity.federation.bindings.jboss.auth.SAML2STSLoginModule
> > >>>>
> > >>>>>> ?
> > >>>>>>
> > >>>>>>
> > >>>>>>>>> My understanding is that having custom login modules :
> > >>>>>>>>> - makes it easy to stack together different modules,
> > as
> > >>>>>>>>>
> > >>>> shown
> > >>>>
> > >>>>>>>>>
> > >>>>>>>>>
> > >>>>>> for ex at [1]
> > >>>>>>
> > >>>>>>
> > >>>>>>>>> - but requires the explicit loading of (JBoss
> > Security)
> > >>>>>>>>>
> > >>>>>>>>>
> > >>>>>> AuthenticationManager (at least when services are POJOs)
> > >>>>>>
> > >>>>>>
> > >>>>>>>>> cheers, Sergey
> > >>>>>>>>>
> > >>>>>>>>> [1]
> > >>>>>>>>>
> > >>>>>>>>>
> > >>>>>>
> > >>>>
> > >>
> > http://community.jboss.org/wiki/SAMLEJBIntegrationwithPicketLinkSTS
> > >>>>
> > >>>>>>
> > >>>>>>
> > >>>>>>>>>
> > >>>>>>>>>
> > >>>>>>>>>> On 07/13/2010 11:35 AM, Bill Burke wrote:
> > >>>>>>>>>>
> > >>>>>>>>>>
> > >>>>>>>>>>> Remy, Anil,
> > >>>>>>>>>>>
> > >>>>>>>>>>> (I'm cc'ing jboss-dev for archive purposes)
> > >>>>>>>>>>>
> > >>>>>>>>>>> Sergey , a new web services/resteasy hire, has done some
> > >>>>>>>>>>>
> > >>>> great
> > >>>>
> > >>>>>>>>>>>
> > >>>>>>>>>>>
> > >>>>>> work
> > >>>>>>
> > >>>>>>
> > >>>>>>>>>>> around OAuth lately. I'm interested in taking his stuff
> > to
> > >>>>>>>>>>>
> > >>>> the
> > >>>>
> > >>>>>>>>>>>
> > >>>>>>>>>>>
> > >>>>>> next
> > >>>>>>
> > >>>>>>
> > >>>>>>>>>>> level and make it consumable in a way JBoss AS users are
> > >> used
> > >>>>>>>>>>>
> > >>>>>>>>>>>
> > >>>>>> to
> > >>>>>>
> > >>>>>>
> > >>>>>>>>>>> configuring security.
> > >>>>>>>>>>>
> > >>>>>>>>>>> Specifically, I'm interested in defining a OAuth
> > >>>>>>>>>>> login-config/auth-method within web.xml i.e.
> > >>>>>>>>>>>
> > >>>>>>>>>>> <login-config>
> > >>>>>>>>>>> <auth-name>OAuth</auth-name>
> > >>>>>>>>>>> <realm-name>...</realm-name>
> > >>>>>>>>>>> </login-config>
> > >>>>>>>>>>>
> > >>>>>>>>>>> This would be an initial step, eventually I'd like to be
> > >> able
> > >>>>>>>>>>>
> > >>>>>>>>>>>
> > >>>>>> to
> > >>>>>>
> > >>>>>>
> > >>>>>>>>>>> configure a web app to support multiple authentication
> > >>>>>>>>>>>
> > >>>>>>>>>>>
> > >>>>>> mechanisms,
> > >>>>>>
> > >>>>>>
> > >>>>>>>>>> so
> > >>>>>>>>>>
> > >>>>>>>>>>
> > >>>>>>>>>>> that one URL could support both OAuth and traditional
> > >>>>>>>>>>>
> > >>>> clients.
> > >>>>
> > >>>>>>>>>>> Is JSR 196 the way to do this? Do we support in AS6?
> Is
> > >>>>>>>>>>>
> > >>>> there
> > >>>>
> > >>>>>>>>>>>
> > >>>>>>>>>>>
> > >>>>>> doco
> > >>>>>>
> > >>>>>>
> > >>>>>>>>>>> someplace? (I couldn't find with a search).
> > >>>>>>>>>>>
> > >>>>>>>>>>> Thanks,
> > >>>>>>>>>>>
> > >>>>>>>>>>> Bill
> > >> _______________________________________________
> > >> jboss-development mailing list
> > >> jboss-development at lists.jboss.org
> > >> https://lists.jboss.org/mailman/listinfo/jboss-development
> > > _______________________________________________
> > > jboss-development mailing list
> > > jboss-development at lists.jboss.org
> > > https://lists.jboss.org/mailman/listinfo/jboss-development
> >
> >
> > --
> > Brian Stansberry
> > Lead, AS Clustering
> > JBoss by Red Hat
> > _______________________________________________
> > jboss-development mailing list
> > jboss-development at lists.jboss.org
> > https://lists.jboss.org/mailman/listinfo/jboss-development
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