Re: reqrep always replaces, even when position \x is not found?

Greetings,

Sorry for the "double" posting, let me just try to simplify the exposition of the problem. I'm trying to rewrite a URI using regular expression placeholders, but I'm having a problem that when a placeholder doesn't match anything it still gets replaced in the destination with a '1'. This is the configuration directive (basically if the URI is rss2, rewrite to RSS2; but if it is rss only, rewrite to RSS): reqrep ^([^\ ]*)\ /rss(2*)(.*) \1\ /Endpoint/RSS\2\3

Calling rss2 correctly rewrites the URI: => /rss2?u=username correctly rewrites to /Endpoint/RSS2?u=username

However calling rss (without the '2') triggers a wrong replacement: => /rss?u=username incorrectly rewrites to /Endpoint/RSS1?u=username, instead of /Endpoint/RSS?u=username

This is the content of the log:
10.134.15.124 - - [21/Aug/2009:12:08:33 +0100] "GET /Endpoint/RSS2? u=username HTTP/1.1" 404 209
10.134.15.124 - - [21/Aug/2009:12:09:05 +0100] "GET /Endpoint/RSS1? u=username HTTP/1.1" 404 209

Many thanks again.

Pedro.

On Aug 21, 2009, at 12:19 PM, Pedro Mata-Mouros Fonseca wrote:

> Greetings,
>
> I'm using a reqrep to search in a URI for either the "rss" or "rss2"
> strings. The objective is to have the following mapping:
> /rss?u=username => /Endpoint/RSS?u=username
> /rss2?u=username => /Endpoint/RSS2?u=username
>
> This is the reqrep I'm using:
> reqrep ^([^\ ]*)\ /rss(2*)(.*) \1\ /Endpoint/RSS\2\3
>
> This is the result:
> 10.134.15.124 - - [21/Aug/2009:12:08:33 +0100] "GET /Endpoint/RSS2?
> u=username HTTP/1.1" 404 209
> 10.134.15.124 - - [21/Aug/2009:12:09:05 +0100] "GET /Endpoint/RSS1?
> u=username HTTP/1.1" 404 209
>
> When \2 exists, it is replaced accordingly, but when it doesn't a 1
> is used for replacement, instead of an empty string... Any ideas of
> what could be happening?
>
> (Note that each return a 404, because there's not really any content
> - this was just to test the regexp replacement.)
>
> Thanks so much.
>
> Pedro.
>
>
Received on 2009/08/24 13:10