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From Martin Brennfleck <mar...@schlund.de>
Subject mod_rewrite/4276: Rewriting with {prg:/my/rewriteprog} fails if URI contains %0A
Date Tue, 20 Apr 1999 13:06:30 GMT

>Number:         4276
>Category:       mod_rewrite
>Synopsis:       Rewriting with {prg:/my/rewriteprog} fails if URI contains %0A
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    apache
>State:          open
>Class:          sw-bug
>Submitter-Id:   apache
>Arrival-Date:   Tue Apr 20 06:10:01 PDT 1999
>Originator:     martin@schlund.de
>Release:        1.3.6
Linux infong1 2.0.36 #1 Wed Mar 24 21:40:07 MET 1999 i686 unknown
gcc version egcs-2.91.60 19981201 (egcs-1.1.1 release) 
passing a URL to the rewriteprog wich contains %0A in fact 
passes 2 lines to the rewriteprog. Because of the recommeded 
structure of the rewriteprog (one line in, one line out)
the apache gets back two lines wich is very confusing for it.
Install a {prg:/my/rewriteprog} and pass a url containing
%0A to it.
A workaround is to prepend a magic string to the url.
If the rewriteprg cannot find the magic string at the begin of a
inputline it should produce no output
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