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From Clodoaldo Pinto Neto <clodoaldo.pi...@gmail.com>
Subject Re: [users@httpd] Query string encoding
Date Wed, 08 Apr 2009 01:29:08 GMT
2009/4/3 André Warnier <aw@ice-sa.com>:
> Clodoaldo Pinto Neto wrote:
>>
>> I want to rewrite a url to a query string like this:
>>
>> from http://example.com/x+ to http://example.com/var=x%2B
>> or
>> from http://example.com/x%2B to http://example.com/var=x%2B
>>
>> Using:
>> RewriteRule ^(/([\w-()+]+))?/$ /?var=$2 [QSA]
>>
>> The problem i have is that the query string is passed to the
>> application unencoded so the "+" is understood by the application as
>> space. How to reencode the query string before it is passed to the
>> application?
>>
> Hi.
> I don't really know why precisely, but I have a bad feeling about the above,
> in the sense that an initial URL like you show two examples above may lead
> to trouble at some point.
>
> But assuming you insist..
>
> You may want to lookup this page :
> http://httpd.apache.org/docs/2.2/mod/mod_rewrite.html
> in the following sections :
> Internal Function (escape)
> or
> External Rewriting Program

I could not make the internal escape function work for me. So I used
an external rewriting program. If someone is interested this is it:

#!/usr/bin/env python

from sys import stdin as si
from sys import stdout as so
from urllib import quote

linha = si.readline()
si.flush
while linha:
   so.write(quote(linha, '/\n'))
   so.flush()
   linha = si.readline()
   si.flush()

Then in httpd.conf:

RewriteMap escape_url prg:/home/carroarodo/escape_url.py
RewriteRule ^(.*)$ ${escape_url:$1}

Regards, Clodoaldo

>
> I have never used them, and I am not sure they allow to create the
> query-string part of the rewritten request.
> But it's worth trying out.
> Otherwise, mod_perl would be your friend.
>
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