php - rewrite url with dynamic host name

Question

I need to rewrite url with rule like below

RewriteRule ^files/([a-z0-9-\.]+)$ files/domain.com/$1

domain.com is current host name. It is dynamic (don't ask why plz). So I can not do like this. Anyway, how I can get current host name and put it like this:

RewriteRule ^files/([a-z0-9-\.]+)$ files/{{ current host name with out www. }}/$1

Answer 1

%{HTTP_HOST} will give you the requested host name.

I can't test right now whether it can be used in a RewriteRule, but I think it can.

Answer 2

I think this might do the trick for you:

RewriteRule ^files/([a-z0-9-\.]+)$ files/%{SERVER_NAME}/$1
RewriteRule ^files/www\.([^/]+)/([a-z0-9-\.]+)$ files/$1/$2

(The second line removes any www. from the domain.)

Answer 3

RewriteCond %{HTTP_HOST} ^(www\.)(.*)$
RewriteRule ^files/(a-z0-9-\.]+)$ files/%2/$1

Can't test either, but it should be something like this. (www\.) makes sure with or without www it works, then the (.*) part in the HTTP_HOST captures the rest of the domain. By using %2 this domain is later re-used in the new request.

Answer 4

As already mentioned, %{HTTP_HOST} contains the value of the Host header field.

You can use the following to always get only the last two domain levels:

RewriteCond %{HTTP_HOST} ([^.]+\.[^.]+)$
RewriteRule ^files/([a-z0-9-\.]+)$ files/%1/$1