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From Martin Man <Martin....@seznam.cz>
Subject Re: [RT] Cocoon, JAAS, and Sitemap
Date Thu, 21 Jun 2001 20:01:45 GMT
hi,
	I agree with you completely (although must say that haven't got a
chance to take a look at JAAS deeply) because I was also already thinking
about the uniform API for authentication (to be incorporated with validators -
session creation, etc.)...

	... and I've seen that until now we (me) are rather duplicating lot of
things that have been done by servlet api's basic-auth and form-auth (which
are IMO useless for cocoon itself, cause they can protect only whole servlet)

	... and I also would like to see it embeded somewhere in the sitemap
syntax, because resource protection and authentication is part of every webapp
nowadays so why still hack around with some custom-made actions, validators,
etc. (not even mentioning possible kerberos incorporation)... would this be
possible with JAAS easily (presumming sitemap or cocoon.xconf will be 
involved)... something like PAM under linux is doing


rgds,
martin

On Thu, Jun 21, 2001 at 01:31:30PM -0400, Berin Loritsch wrote:
> Ladies and Gentlemen,
> 
> I have been giving alot of thought to possible security models and
> access authorization architectures lately.  Since Java has released
> Java Authentication and Authorization Services (JAAS), I realized
> that this was a standard way I could have all my companies apps
> authenticate and authorize users in a standard manner.  I have never
> really liked the Servlet API's methods of authentication of end
> users because you could not design your own ways of testing the
> authentication.  If you did, you could not take your application
> to another Servlet Container.
> 
> As what I am about to outline will affect some semantics of the
> Sitemap, this is something that would have to be affected in version
> 2.1 or later of Cocoon.  JAAS has some very interesting ways of
> creating your own LoginModules that set up authorizations, etc.
> When there is need of feedback from the LoginModule, it uses a
> CallbackHandler.  The CallbackHandler will give a standard list
> of questions and ways of responding to the questions.  This is
> straightforward.
> 
> At first you might think that you could create a Generator that
> was a CallbackHandler and an Action that populated the Callback
> array with the answers.  While this is part of the solution, the
> answer is more complicated.  JAAS opperates by obtaining a LoginContext
> for a login session initialized with the appropriate callbackhandler
> and other information.  You will then call the login() method
> on that LoginContext.  After the login is fully authenticated,
> control returns to the login() method.  This is pretty circuitous.
> 
> The full solution requires that the login() method be called from
> the Sitemap.  We would need to create a <map:handle-login/> entry
> in the pipeline with the transformer and serializer set up.  We would
> also need to specify whether a client must be logged in for a specific
> pipeline.  Lastly, we need to have a JAAS executePipelineAction
> that would be executed as a specific Subject.  Lastly we would need
> some Role based Permissions.
> 
> I think the higher sophistication of JAAS and the fact that solutions
> are portable and customizable for the system is a benefit we can't
> ignore.  For Cocoon to be taken seriously in corporate settings where
> secure information is prevalent, we need to take advantage of this
> security model.
> 
> Please give me some feedback.


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