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From "Joshua Slive" <>
Subject Re: [users@httpd] Comparing environmental variables in httpd.conf for conditional logic
Date Mon, 21 May 2007 15:51:35 GMT
On 5/21/07, Neil A. Hillard <> wrote:
> Hi,
> Joshua Slive wrote:

> > In any case, this isn't going to work. The regular expression used in
> > RewriteCond (and RewriteRule and SetEnvIf) cannot contain variables.
> > It is compiled at server-start and doesn't have access to anything
> > per-request.
> >
> > I don't think there is any way to do exactly what you want with
> > standard modules. You'll need to specify the ServerName explicitly in
> > the rules.
> I don't believe that's true.  I have the following rewrite to remove a
> prefix from the REMOTE_USER variable:
> RewriteCond        %{LA-U:REMOTE_USER} ^EXT_(.*)$
> RewriteRule        .* - [env=RU:%1]
> and:
> RewriteRule ^/$ http://%{SERVER_NAME}/site/ [R]
> I haven't got a spare server to play around with at the moment, but I'm
> sure something is possible.  Is it just a case of it doesn't like the
> environment variable on the RHS argument?
> As someone else asked, have you enabled the RewriteLog?

The regular expression part can't have a variable. In the RewriteCond
case, the regular expression is on the right, while in the RewriteRule
case it is on the left.


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