Re: Custom IIdentity class - how to set it?

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From: John Saunders (john.saunders)
Date: 02/20/04 

Date: Fri, 20 Feb 2004 16:09:34 -0500

"Tim Mulholland" <TimMulholland@nospamaddress.com> wrote in message
news:uOeF4R$9DHA.3488@tk2msftngp13.phx.gbl...
> i've been looking into that...
> am i correct then in thinking that this event will be raised multiple
times
> per page request, and i'll handle it when they've been authenticated and
> fill in the User information then? So then the user information would be
> recreated (accessed from a db, or whatever) everytime a page loads?
> Is there a better way to do that?
> Or am i just totally missing something?

No. The event will only be raised once per page.

And, yes, it does have to be recreated every page load - so it would be a
good idea to avoid a database hit on each load. Many people do this by
setting the UserData field of the FormsAuthenticationTicket on their login
page, then reading the UserData during Application_AuthenticateRequest. The
idea would be to use it to hold information you'd otherwise have to go to
the database for, but which you don't mind having a bit out of date (it will
be from the time of login, if you never refresh it). 

-- 
John Saunders
John.Saunders at SurfControl.com
> "John Saunders" <john.saunders at SurfControl.com> wrote in message
> news:ejYQ9I$9DHA.1052@TK2MSFTNGP12.phx.gbl...
> > "Tim Mulholland" <TimMulholland@nospamaddress.com> wrote in message
> > news:uBJBcX99DHA.1116@TK2MSFTNGP09.phx.gbl...
> > > I have created my own IIdentity class (actually inherited from
> > > GenericIdentity) to contain lots of extra useful information to be
> passed
> > > around with the user's basic information.
> > > The class compiles fine, no problems there.
> > >
> > > My problem is that i'm not sure where to actually set this to be part
of
> > the
> > > HttpContext. I know that the IIdentity stuff is part of a principal
> (which
> > > in my case will be a GenericPrinciple i suppose since i'm using forms
> > > authentication). So i figure it needs to be whenever the
> HttpContext.User
> > > object is set.
> > >
> > > What event is raised that i need to handle to be able to do this? I'm
> > going
> > > to be controlling all of the authentication using custom forms
> > > authentication.
> >
> > You need to do this sort of thing in the Application_AuthenticateRequest
> > event in global.asax.
> >
> > Be sure to check Request.IsAuthenticated, first, though!
> > -- 
> > John Saunders
> > John.Saunders at SurfControl.com
> >
> >
>
>

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