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From "Propes, Barry L " <barry.l.pro...@citi.com>
Subject RE: JNDIRealm - how to display login exceptions/error msg within form-error-page when using Form based authentication?
Date Thu, 10 Apr 2008 14:56:49 GMT
yeah, Dave, will do.

-----Original Message-----
From: david.melia [mailto:dave_melia@hotmail.com]
Sent: Thursday, April 10, 2008 3:59 AM
To: users@tomcat.apache.org
Subject: RE: JNDIRealm - how to display login exceptions/error msg
within form-error-page when using Form based authentication?



Hi,

regarding the error-page idea i have tried this and this does not work but
thinking about it, for form based authentication you have to define a
mandatory error page anyway so this would have precendence over any error
page defined else where.  A login failure always flows back to the page
defined in form-error-page leaving me with the same issue of not being able
to get a handle on the error.

Also, i have checked out the JNDIRealm source code and it only seems to log
any exception but not throw it back (seems to pass a null Principal back to
the calling code to signify you could not log on).  If this is the case we
cannot get a handle on the error.

Any other ideas?

Barry, could you post your idea please?

Thanks


Propes, Barry L wrote:
> 
> even for my antiquated version, Chuck? 4.1.36?
> 
> -----Original Message-----
> From: Caldarale, Charles R [mailto:Chuck.Caldarale@unisys.com]
> Sent: Wednesday, April 09, 2008 11:17 AM
> To: Tomcat Users List
> Subject: RE: JNDIRealm - how to display login exceptions/error msg
> within form-error-page when using Form based authentication?
> 
> 
>> From: Propes, Barry L [mailto:barry.l.propes@citi.com] 
>> Subject: RE: JNDIRealm - how to display login 
>> exceptions/error msg within form-error-page when using Form 
>> based authentication?
>> 
>> I believe you can only set one standard error page in the XML 
>> file, if I'm not mistaken, at least of the specific web app itself.
> 
> No, you can have a separate error page for each status or exception
> value in each webapp.  See section 9.9 of the servlet spec.
> 
>> But one thing I did was flag for a specific exception to be 
>> caught, and if this matched, ran an out.println series of 
>> statements to the browser indicating to the users the problem.
> 
> That's the appropriate thing to do, using <error-page> and
> <exception-type> declarations in WEB-INF/web.xml of the webapp.
> 
>  - Chuck
> 
> 
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