[users@httpd] URL Rewrite Question

[Brian Gaber <Br...@ssc-spc.gc.ca>]

This is my first attempt at using RewriteRule.

I have about 200 webpages the contain SPS or MENU (in UPPER or lower case) that I want to send to a webpage on another server.

I thought this might work, but it has not.

RewriteCond  %{REQUEST_URI}  (SPS|MENU)
RewriteRule  ^/$                 http://new-webserver/new-webpage.html  [L]

I based this on what I read in http://httpd.apache.org/docs/2.2/mod/mod_rewrite.html#rewriterule and this example found therein:

RewriteCond  %{HTTP_USER_AGENT}  ^Mozilla
RewriteRule  ^/$                 /homepage.max.html  [L]

                I am fairly familiar with Perl Regular Expression, but could someone explain what ^/$ does?  I understand what ^ and $ do.

                Thanks.

Brian

Re: [users@httpd] URL Rewrite Question

[Michael Streeter <ms...@gmail.com>]

On 3/28/2014 9:39 AM, Brian Gaber wrote:
>
> This is my first attempt at using RewriteRule.
>
> I have about 200 webpages the contain SPS or MENU (in UPPER or lower 
> case) that I want to send to a webpage on another server.
>
> I thought this might work, but it has not.
>
> RewriteCond  %{REQUEST_URI}  (SPS|MENU)
>
> RewriteRule  ^/$ http://new-webserver/new-webpage.html  [L]
>
> I based this on what I read in 
> http://httpd.apache.org/docs/2.2/mod/mod_rewrite.html#rewriterule and 
> this example found therein:
>
> RewriteCond %{HTTP_USER_AGENT}  ^Mozilla
>
> RewriteRule ^/$                 /homepage.max.html  [L]
>
>                 I am fairly familiar with Perl Regular Expression, but 
> could someone explain what ^/$ does?  I understand what ^ and $ do.
>
>                 Thanks.
>
> Brian
>
Hello,

As you probably know, the ^ matches the beginning of the text you're 
trying to match against.  The $ matches the end.  The / is simply a 
literal / character.  So the whole pattern matches a line with just a / 
character.

Are you putting the rules into an .htaccess file or in a server 
context?  If it's .htaccess, the / won't be there to match against 
because of the way it matches in a "per-directory" context.  From the 
linked page: "The removed prefix always ends with a slash, meaning the 
matching occurs against a string which /never/ has a leading slash. 
Therefore, a /Pattern/ with |^/| never matches in per-directory context."

Try something like this:
RewriteCond  %{REQUEST_URI}  (SPS|MENU) [NC]
RewriteRule  ^.*$ http://new-webserver/new-webpage.html  [L]

http://rewritetester.com/ is a work in progress, but it might be helpful 
in showing how mod_rewrite is trying to do the match behind the scenes.  
It roughly shows what the server would show if you turned on rewrite 
logging for .htaccess rewrites.

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