Using mod_rewrite with Multiple Query Strings in Apache 2.4

.htaccessapache-2.4mod-rewriteregex

This is an extension to my question https://serverfault.com/a/761474/77231

I am trying to add an additional QUERY STRING parameter to the URL and change spaces to underscores but am having no success.

Instead of simply changing:

http://somedomainname.com/grafana/dashboard/db/generic-ping?var-device=SF-some.machinename.com

to:

http://somedomainname.com/grafana/dashboard/db/generic-ping?var-device=SF-some_machinename_com

I'm trying to change an additional parameter like:

http://somedomainname.com/grafana/dashboard/db/generic-check?var-device=SF-some.machinename.com&var-check=Check CPU Load

to:

http://somedomainname.com/grafana/dashboard/db/generic-check?var-device=SF-some_machinename_com&var-check=Check_CPU_Load

Using the same logic in my previously answered question, I'm able to get the first part working using:

RewriteCond %{QUERY_STRING} (.*)\.(.*)\.(.*)
RewriteRule ^/grafana/dashboard/db/generic-check /grafana/dashboard/db/generic-check?%1_%2_%3 [R=301]

But that only obviously gets me the first part and comes out like:

http://somedomainname.com/grafana/dashboard/db/generic-check?var-device=SF-some_computername_com&var-check=Check%2520CPU%2520Load

I've added an additional QUERY_STRING and rewrite rule like:

RewriteCond %{QUERY_STRING} ^&var-check=(.*)\ (.*)\ (.*)
RewriteRule ^&var-check var-check=%1_%2_%3 [R=301]

…without success.

I've also tried combining the two:

RewriteCond %{QUERY_STRING} (.*)\.(.*)\.(.*)&(.*)\ (.*)\ (.*)
RewriteRule ^/grafana/dashboard/db/generic-check /grafana/dashboard/db/generic-check?%1_%2_%3&%4_%5_%6 [R=301]

..also without success, as well as using %20 \s and %2520 instead of \ and a space… as well as all with a pipe separator like \ |\s|%20|%2520.

Ideally I'd like this work in one rewrite, but I'd be happy to just have it work. Any help is appreciated.

Best Answer

I was able to get this by adding the following condition and rule.

RewriteCond %{QUERY_STRING} ^(.*)(%2520)(.*)(%2520)(.*)$
RewriteRule ^(.+)$ $1?%1_%3_%5 [R=301]

Unfortunately, I need to repeat this cond/rule for however many spaces may come up. I tried a bunch of different conditions and rules [N] didn't seem to ever do what it was supposed to do.

I'm still open for answers as I feel this can be done better, more reliably, and/or more robust.

Related Solutions

Tomcat – Apache2 – mod_expire and mod_rewrite not working in httpd.conf – serving content from tomcat

Probably the ProxyPass / directive you have in your config routes all requests to the Tomcat backend, bypassing all your mod_rewrite directives. You can try to remove the ProxyPass directive and use RewriteRule with the [P] flag after your other rewrites:

mod_rewrite: P|proxy

For the expire headers the situation is worse — in another similar question a solution was not found.

Option +FollowSymLinks would be needed for using mod_rewrite in .htaccess files; in your case it is not required, because you can put everything in the Apache config. Moving rules from config to .htaccess is pointless and can only make things slower. However, there is an important difference between .htaccess and the Apache config — in .htaccess patterns in RewriteRule are matched against relative filesystem paths (which never start with /), while in the VirtualHost context these patterns are matched against the URL path after the hostname, which always starts with /. Therefore at least one of your rules is incorrect:

RewriteRule ^content/(js|css)/([a-z]+)-([0-9]+)\.(js|css)$ /content/$1/$2.$4

should be

RewriteRule ^/content/(js|css)/([a-z]+)-([0-9]+)\.(js|css)$ /content/$1/$2.$4

(note the additional slash in the beginning).

Mod_rewrite rule for images with query string

First add a RewriteBase, this will strip the /images/ part in the query string. You will get photo.jpg?w=... instead of /images/photo.jpg?w=....

Second add /images/ to the redirection, because your current redirection tells to go to http://mysite.com/thumbs/phpThumbs... instead of http://mysite.com/images/thumbs/phpThumbs....

This gives something like this:

 <IfModule mod_rewrite.c>
    RewriteEngine on
    RewriteBase /images/
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteCond %{QUERY_STRING} ^.+
    RewriteRule ([^\s]+(\.(?i)(jpg|png|gif|bmp))$) /images/thumbs/phpThumb.php?src=$1 [L,QSA]
 </IfModule>

Best Answer

Related Solutions

Tomcat – Apache2 – mod_expire and mod_rewrite not working in httpd.conf – serving content from tomcat

Mod_rewrite rule for images with query string

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