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From Tom Evans <tevans...@googlemail.com>
Subject Re: [users@httpd] Cat request + query for rewrite?
Date Thu, 06 Oct 2011 16:28:14 GMT
On Thu, Oct 6, 2011 at 5:21 PM, Nick Tkach <ntkach@gmail.com> wrote:
> Is there some way to make a RewriteRule concat together two
> back-references?  What I want to do is take the REQUEST_URI and the
> QUERY_STRING of a request and use the two together as a key into a
> map.
>
> So if I have a request like this:
>
> http://mysite.com/bar/startpage?arg1=a&arg2=b
>
>  and I want to rewrite that to
>
> http://mysite.com/foo/endpage?arg3=c&arg4=d
>
> Given an entry in the map file like
>
> bar/startpage?arg1=a&arg2=b    foo/endpage?arg3=c&arg4=d
>
>
> I was trying some combination like
>
> RewriteMap map2 txt:/redirects-map.txt
>
> RewriteCond %{REQUEST_URI} ^/bar/startpage
> RewriteCond %{QUERY_STRING} arg1=a&arg2=b
> RewriteCond %{REQUEST_URI} (.*)
> RewriteCond %{QUERY_STRING} (.*)
> RewriteRule .* ${map2:%1%2}? [L,NC,R=302]
>
>
> That seems to only try to do the map lookup based on the QUERY_STRING.
>  Obviously the second match is over-riding the first, but I'm not
> quite sure how to stop that.

Yes, and there is no way around that. What you can do instead is
capture the REQUEST_URI as a RewriteRule backref:

RewriteCond %{REQUEST_URI} ^/bar/startpage
RewriteCond %{QUERY_STRING} arg1=a&arg2=b
RewriteCond %{QUERY_STRING} (.*)
RewriteRule (.*) ${map2:$1%1}? [L,NC,R=302]

Cheers

Tom

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