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From: "Caldarale, Charles R" <Chuck.Caldarale@unisys.com>
To: Tomcat Users List <users@tomcat.apache.org>
Date: Thu, 12 Feb 2009 12:22:44 -0600
Subject: RE: of the different methods to get a user-id
Thread-Topic: of the different methods to get a user-id
Thread-Index: AcmNIlQ5JWMhr3UPSjmYumo86SioCwAG14YQ
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 <0AAE5AB84B013E45A7B61CB66943C17215B62FB6C3@USEA-EXCH7.na.uis.unisys.com>
References: <4994204D.90900@ice-sa.com> <4994337C.2030700@joedog.org>
 <4994378A.3020107@ice-sa.com>
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> From: Andr=E9 Warnier [mailto:aw@ice-sa.com]
> Subject: Re: of the different methods to get a user-id
>
> > I would expect
> > request.getRemoteUser() =3D=3D request.getUserPrincipal().getName()
> > But there no literature which says that must be so.
>
> And the reality shows it isn't.
> So somehow there must be two distinct underlying "thingies" in Tomcat
> where the two different answers are coming from.

As Pid surmised, it's not Tomcat that is giving you different answers.  Her=
e's Tomcat's implementation of HttpServletRequest.getRemoteUser():

    public String getRemoteUser() {
        if (userPrincipal !=3D null) {
            return (userPrincipal.getName());
        } else {
            return (null);
        }
    }

[Aside: Don't know why people think return statements need parentheses; may=
be they get paid for programming based on the number of characters used.]

 - Chuck


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