Hi Atrix,

<@USERREFERENCE> returns the value of your "Session Key", whether it's
stored as a Session-cookie or used by the _UserReference argument is another
matter.

I wouldn't be surprised if Witango prevents you from overwriting this
particular Cookie Scope Variable - it probably wants to preserve internal
Server management over accidental or bad coding.

But...using the reserved local$httpHeader Variable you might be able to
craft a custom HTTP Header that changes the value of the session-cookie, but
you would then loose the "linkage" back to your User Variables.

This gets more interesting all the time :-)



> -----Original Message-----
> From: Atrix Wolfe [mailto:[EMAIL PROTECTED] 
> Sent: Wednesday, August 06, 2003 2:57 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Witango-Talk: RE: Reusing the UserReference key
> 
> 
> Looks like your right, when i link with out a user ref arg it sets the
> Witango_UserReference cookie but when i link with a user ref 
> arg (made up
> one or not) it doesnt set the Witango_UserReference cookie.
> 
> We might be able to use this to our advantage in a case like 
> Roland's but i
> cant seem to call up the value of the user reference cookie 
> from within
> witango ):
> 
> im playin around with some stuff trying to get it to assign 
> the user a new
> userref when the user ref they have is invalid (:
> 
> 
> ----- Original Message -----
> From: "Scott Cadillac" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Wednesday, August 06, 2003 1:10 PM
> Subject: RE: Witango-Talk: RE: Reusing the UserReference key
> 
> 
> Hi Atrix,
> 
> Just another follow-up on your testing. And sorry, I haven't 
> taken a look at
> Ben's code yet.
> 
> But maybe if a _UserReference value is passed to the Server 
> on the first
> request - Witango isn't bothering to issue the "Set-Cookie" 
> header, which
> would explain why you don't see the cookies in HTTPLook.
> 
> Just another thought from my rambling brain. And I guess I 
> should just stop
> rambling and do more actual work, eh :-P
> 
> I'm going to get myself in trouble here...I can just feel it....
> 
> 
> > -----Original Message-----
> > From: Atrix Wolfe [mailto:[EMAIL PROTECTED]
> > Sent: Wednesday, August 06, 2003 12:40 PM
> > To: [EMAIL PROTECTED]
> > Subject: Re: Witango-Talk: RE: Reusing the UserReference key
> >
> >
> > I tested w/ R:Tango 5 (not sure what build or version number
> > but I know it
> > is pre- the latest secuirty patch), Apache 1.3.24 and windows 2000.
> >
> > As far as i can see there is no user ref cookie.  Im not sure
> > the name of
> > the cookie so i dumped <@varnames scope='cookie'> and it was
> > empty, also
> > using HTTPLook i see no cookies (:
> >
> > Single work station, working localy across 127.0.0.0
> >
> >
> >
> > ----- Original Message -----
> > From: "Scott Cadillac" <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Wednesday, August 06, 2003 11:19 AM
> > Subject: Witango-Talk: RE: Reusing the UserReference key
> >
> >
> > > Thank you Atrix,
> > >
> > > Could you also include what version of Witango you tested
> > with, OS and
> > > Webserver brand?
> > >
> > > In a serious test environment, it would also be good to 
> see what the
> > > session-cookie value is in this scenario (should be the 
> same as the
> > > UserReference key).
> > >
> > > I'm sure this has been discussed on the list in the past,
> > but just can't
> > > remember the results.
> > >
> > > Did you use more than one workstation? Just wondering....
> > >
> > >
> > > > -----Original Message-----
> > > > From: Atrix Wolfe [mailto:[EMAIL PROTECTED]
> > > > Sent: Wednesday, August 06, 2003 12:09 PM
> > > > To: [EMAIL PROTECTED]
> > > > Subject: Re: Reusing the UserReference key (was:
> > > > Witango-Talk: what happens with expired userReference?)
> > > >
> > > >
> > > > Well i just tested it.
> > > >
> > > > I have a .taf with a results html with this in it:
> > > >
> > > > <a 
> href="<@cgi><@appfile>?<@userreferenceargument>">test!</a><br>
> > > >
> > > > what i did was create some links to this with edited user
> > > > refs (to simulate
> > > > expired user refs since they arent currently valid) and yeah,
> > > > each one used
> > > > the linked user ref as its own...meaning if there was a
> > > > search engine or
> > > > something that included the user reference argument in the
> > > > link, they would
> > > > all be using the same session which is no bueno!
> > > >
> > > > there might be a way to force the client to a new user
> > > > reference number.
> > > >
> > > > if so, at every page you can check to see if
> > user$validuser=1.  If it
> > > > doesnt, force a new user reference number and set
> > > > user$validuser to 1 so the
> > > > first time someone visits your pages, they are forced to get
> > > > a new user ref
> > > > number, which would solve this issue.
> > > >
> > > > One of many solutions people will present, im sure :P
> > > >
> > > >
> > > > ----- Original Message -----
> > > > From: "Scott Cadillac" <[EMAIL PROTECTED]>
> > > > To: <[EMAIL PROTECTED]>
> > > > Sent: Wednesday, August 06, 2003 10:46 AM
> > > > Subject: Reusing the UserReference key (was: Witango-Talk:
> > > > what happens with
> > > > expired userReference?)
> > > >
> > > >
> > > > After sending my post, and thinking about it....
> > > >
> > > > I suppose my answer is probably not right, that the old
> > > > UserReference is
> > > > reused for a new session.
> > > >
> > > > In theory, if 10 different people all clicked on the same
> > > > Search page links,
> > > > which all had the same UserReference key value - and the old
> > > > key IS reused
> > > > for the new session(s) - then 10 people could be sharing
> > the same User
> > > > variables. Not good.
> > > >
> > > > Does somebody have a better answer than me?
> > > >
> > > > Like I mentioned, I don't personally use
> > > > <@USERREFERENCEARGUMENT> in my apps
> > > > and strictly rely on the session-cookie. So the above
> > > > wouldn't happen to me,
> > > > and I don't have an opportunity to test my own answer.
> > > >
> > > > Any feedback anyone???
> > > >
> > > > Scott Cadillac,
> > > > Witango.org - http://witango.org
> > > > 403-281-6090 - [EMAIL PROTECTED]
> > > > --
> > > > Information for the Witango Developer Community
> > > > ---------------------
> > > >
> > > > XML-Extranet - http://xml-extra.net
> > > > 403-281-6090 - [EMAIL PROTECTED]
> > > > --
> > > > Well-formed Development (for hire)
> > > > ---------------------
> > > >
> > > >
> > > > > -----Original Message-----
> > > > > From: Scott Cadillac [mailto:[EMAIL PROTECTED]
> > > > > Sent: Wednesday, August 06, 2003 11:34 AM
> > > > > To: [EMAIL PROTECTED]
> > > > > Subject: RE: Witango-Talk: what happens with expired
> > userReference?
> > > > >
> > > > >
> > > > > Hi Roland,
> > > > >
> > > > > As long as the VariableTimeout has expired by the time of
> > > > the new page
> > > > > visitor (with the old link), then the old User Variables are
> > > > > gone - and new
> > > > > ones are assigned as needed.
> > > > >
> > > > > I think, but not 100% sure, that the old UserReference key
> > > > > value in the old
> > > > > link is actually reused. This particular question is tough to
> > > > > answer because
> > > > > for myself, I don't use <@USERREFERENCEARGUMENT> and
> > just rely on
> > > > > session-cookies, which means your scenario would never
> > > > present itself.
> > > > >
> > > > > It is when the VariableTimeout period has not expired yet
> > > > (default 30
> > > > > minutes), that a Security issue is introduced where the new
> > > > > visitor can be
> > > > > given access to someone else's User Variables. This is known
> > > > > as Session
> > > > > Hijacking.
> > > > >
> > > > > But, with all that said, your scenario I think is less
> > problematic.
> > > > >
> > > > > Your concern is about when a SearchBot hits your site, and is
> > > > > automatically
> > > > > granted a <@USERREFERENCE> key. This key value is then stored
> > > > > as part of
> > > > > your site links for a search engine - which is then exposed
> > > > > to anonymous
> > > > > users.
> > > > >
> > > > > In theory the SearchBot is not logging in to secure pages
> > > > > with a password,
> > > > > and is typically not trying to do on-line purchases - so I
> > > > > would think there
> > > > > is very little to hijack. Especially given the fact
> > that a case for
> > > > > hijacking is very remote here.
> > > > >
> > > > > In theory, in your code, any User Variables you assign to
> > > > > anonymous visitors
> > > > > on the public side of your pages are relatively non-critical
> > > > > - which is all
> > > > > a SearchBot would be granted, or any other public visitor who
> > > > > has not logged
> > > > > in yet.
> > > > >
> > > > > Of course that is just theory because I don't really know
> > > > what you're
> > > > > assigning your public anonymous visitors, with respect to
> > > > > Variables or your
> > > > > VariableTimeout setting.
> > > > >
> > > > > Hope this helps. Cheers....
> > > > >
> > > > > Scott Cadillac,
> > > > > Witango.org - http://witango.org
> > > > > 403-281-6090 - [EMAIL PROTECTED]
> > > > > --
> > > > > Information for the Witango Developer Community
> > > > > ---------------------
> > > > >
> > > > > XML-Extranet - http://xml-extra.net
> > > > > 403-281-6090 - [EMAIL PROTECTED]
> > > > > --
> > > > > Well-formed Development (for hire)
> > > > > ---------------------
> > > > >
> > > > >
> > > > > > -----Original Message-----
> > > > > > From: Stefan Gonick [mailto:[EMAIL PROTECTED]
> > > > > > Sent: Wednesday, August 06, 2003 11:05 AM
> > > > > > To: [EMAIL PROTECTED]
> > > > > > Subject: Re: Witango-Talk: what happens with expired
> > > > userReference?
> > > > > >
> > > > > >
> > > > > > I'm pretty sure that the Witango server starts a new
> > > > > > user session if the user reference has expired.
> > > > > >
> > > > > > Stefan
> > > > > >
> > > > > > At 09:47 AM 8/6/2003 -0700, you wrote:
> > > > > > >when you have a project and the company's IT manager
> > > > > > personally refuses
> > > > > > >cookies, he writes it into the job spec that the site work
> > > > > > for people who
> > > > > > >hate cookies. ain't that nice?
> > > > > > >
> > > > > > >On Wednesday, August 6, 2003, at 09:36 AM, Bill 
> Conlon wrote:
> > > > > > >
> > > > > > >>Yet another reason to use <@USERREFERENCECOOKIE>
> > > > > > >>
> > > > > > >>>when a bot cruises through a site and each link has a
> > > > > > userReference=xxx
> > > > > > >>>URL argument, it stores those along with the stable URL.
> > > > > > What happens
> > > > > > >>>when someone comes back to that exact URL, userreference
> > > > > > and all, after
> > > > > > >>>the session variables have expired?
> > > > > > >
> > > > > > 
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> > > > > > http://www.DatabaseWebWorks.com
> > > > > >
> > > > > > 
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