Apache RewriteCond/RewriteRule with variables causes infinite redirects

Mario Cesar

3/3/24, 12:14 PM

I'm trying to use variables in the RewriteCond and RewriteRule like so:

SetEnv DOMAIN "example.com"
SetEnv SUBDOMAINS "www|assets"

#more config stuff, unrelated

#I separated the HTTPS redirect just in case, it didn't change anything.
RewriteCond %{HTTPS} !on [NC]
RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

RewriteCond %{HTTP_HOST} !^(%{ENV:SUBDOMAINS})\.%{ENV:DOMAIN}$ [NC]
RewriteRule ^(.*)$ https://www.%{ENV:DOMAIN}/$1 [L,R=301]

This causes a redirect loop. This is an optimization of what's working right now which is explicitly defining

RewriteCond %{HTTP_HOST} !^(www|assets).example.com$ [NC]
RewriteRule ^(.*)$ https://www.example.com/$1 [L,R=301]

I'm trying to have a htaccess that will work across multiple websites with minimal changes, so only the variables are changed from website to website.

What could be causing such a problem?

0 + 1

mod-rewrite

apache-2.4

ezra-s

3/3/24, 6:29 PM

you should show an example of the request and response with "curl -I"or similar. About checking https...why not just set a not SSL virtualhost and just plain redirect to https from there? Convolutions and these continues redirects with greedy matches just tend to cause a mess.

Elon Musk

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EN: Apache RewriteCond/RewriteRule with variables causes infinite redirects

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