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From Klaus Johannes Rusch <KlausRu...@atmedia.net>
Subject mod_rewrite/4734: mod_rewrite does not preserve escaping in query string
Date Sun, 18 Jul 1999 20:50:13 GMT

>Number:         4734
>Category:       mod_rewrite
>Synopsis:       mod_rewrite does not preserve escaping in query string
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    apache
>State:          open
>Class:          sw-bug
>Submitter-Id:   apache
>Arrival-Date:   Sun Jul 18 14:00:01 PDT 1999
>Originator:     KlausRusch@atmedia.net
>Release:        1.3.4
With the following ruleset

RewriteEngine on
RewriteRule ^/keyword/av\ (.*)  http://www.altavista.com/cgi-bin/query?pg=q\&kl=XX\&stype=stext\&q=$1

the URL is unescaped prior to matching, then the unescaped string is inserted on the right
hand side in the query string, e.g. (request and Location: response header log)

"GET http://keyword.netscape.com/keyword/av%20test%20text HTTP/1.0"
redirects to
"http://www.altavista.com/cgi-bin/query?pg=q&kl=XX&stype=stext&q=test text"

See above
Escape query string prior to concatinating r->args
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