Yes but how? :)

What is the key that you use in the session?

-----Original Message-----
From: Michiel Toneman [mailto:[EMAIL PROTECTED] 
Sent: Thursday, April 22, 2004 12:51 PM
To: Tomcat Users List
Subject: Re: another problem with JAAS


Hi Alan,

That's correct, I overwrite the subject.

Michiel

Alan Weissman wrote:

>Hey Michiel -
>
>How did you overwrite Tomcat's Subject in the Session with your own?
>
>Thanks,
>Alan
>
>-----Original Message-----
>From: Michiel Toneman [mailto:[EMAIL PROTECTED] 
>Sent: Thursday, April 22, 2004 9:51 AM
>To: Tomcat Users List
>Subject: Re: another problem with JAAS
>
>
>Hi Beloglazov,
>
>I was running into the same problem. As far as I can tell (anyone on
the
>
>list, please correct me if I'm wrong), Tomcat primarily uses JAAS for 
>authentication, but it is pretty useless for  authorisation. I have no 
>idea why the JAASRealm goes to all the trouble of setting up a Subject 
>etc... when you can't use them in your own policy. All you can do is
use
>
>"isUserInRole()" to check for the *name* of your role Principal. This 
>totally defeats the point of using JAAS IMHO.
>
>I am using a JAAS implementation with is custom Policy that assigns 
>Permission(s) based on various types of Principal that I assign to the 
>Subject. My webapps can then do proper java Permission checks 
>(AccessController.checkPermission(perm)).
>
>The way to go in Tomcat is using a filter, setting up (LoginContext) 
>your Subject and use a doAsPrivileged() to wrap the servlet call. (see 
>my earlier post on the list). However, this does not work on Tomcat 
>(works fine on JRun4) because the filter and servlet are evaluated by 
>Tomcat in different security contexts. The solution was to overwrite 
>Tomcat's Subject in the session by my own Subject.
>
>I'm writing a tutorial on this, but it isn't ready yet. If you need an 
>implementation fast, and the above is not enough to go on, I can speed 
>up the writing ;-)
>
>Cheers,
>
>Michiel
>
>
>Beloglazov Maksim wrote:
>
>  
>
>>Hello,
>>
>>I've written a JAAS LoginModule and my web application successfully 
>>authorizes with it. But! While the authorization is successful, Tomcat
>>    
>>
>
>  
>
>>does not recognize user Principals and roles which I assign in login 
>>module and returns that I have logged as a *null* user with no roles 
>>assigned to it.
>>
>>server.xml:
>>....
>>  <Realm className="org.apache.catalina.realm.JAASRealm"
>>          appName="merx"
>>          userClassNames="ru.mb.security.jaas.RdbmsPrincipal"
>>          roleClassNames="ru.mb.security.jaas.RdbmsRole"
>>          debug="99"/>
>>....
>>
>>ru.mb.security.jaas.RdbmsPrincipal and ru.mb.security.jaas.RdbmsRole 
>>are implementations of java.security.Principal interface. How can I 
>>force Tomcat recognize these Principals in a proper way? Can be the 
>>problem with moving javax.security.Principal of earlier JDKs to 
>>java.security.Principal in modern ones?
>>
>>Any help is greatly appreciated.
>>
>>Beloglazov Maksim.
>>
>>    
>>
>
>
>  
>


-- 
Michiel Toneman  Software Engineer   Bibit Global Payment Services
Regulierenring 10  3981 LB  Bunnik       [EMAIL PROTECTED]
Tel. +31-30-6595168  Fax +31-30-6564464      http://www.bibit.com/


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