Problem detecting empty REQUEST_URI with Apache mod_rewrite

Question

I am running Apache witha redirect rule like this:

RewriteCond %{HTTP_HOST} ^1st-domain\\.com
RewriteRule ^(.*)$ http://2nd-domain.com$1 [R=permanent,L]


        

Answer 1

I tried the options stated on this page, all I wanted was to check if the REQUEST_URI is empty (or in this particular case, a /):

# Check of the request uri is just 1 char long (checking for a slash was harder):
RewriteCond %{REQUEST_URI} ^.$

Answer 2

Your rules redirects request with empty QUERY_STRING.

For empty request_uri, you can use

RewriteCond %{HTTP_HOST} ^1st-domain\.com$
RewriteRule ^$ http://3rd-domain.com$1 [R=permanent,L]

RewriteCond %{HTTP_HOST} ^1st-domain\.com
RewriteRule ^(.*)$ http://2nd-domain.com$1 [R=permanent,L]

The first rule will first match <empty>, then tests for <non-empty or empty> (which can't be <empty> now since we've processed it before)

Answer 3

If request is empty apache 'redirects' to index.html so -RewriteCond %{REQUEST_URI} index- might help you.

Answer 4

I am using the following to catch empty REQUEST_URL:

RewriteEngine on

RewriteCond %{REQUEST_URI} "^/$"

RewriteRule ^(.*) http://%{HTTP_HOST}/my/another/url

Answer 5

This should work:

RewriteCond %{HTTP_HOST} ^1st-domain\.com
RewriteRule ^(.*)$ http://2nd-domain.com$1 [R=permanent,L]
RedirectMatch ^/$ http://3rd-domain.com 

Answer 6

This worked for me:

RewriteCond %{HTTP_HOST} ^(www\.)?1st-domain\.com$
RewriteCond %{REQUEST_URI} ^/$
RewriteRule .* http://3rd-domain.com/ [L,R=permanent]

RewriteCond %{HTTP_HOST} ^.*$
RewriteRule .* http://2nd-domain.com%{REQUEST_URI} [L,R=permanent]

whitout the quotes on the empty validation