subdomain to domain on the fly?

[NightStorm]

I'm cross-posting this on several forums in hopes that someone somewhere will be able to help me with this. I've got a bit of a challenge. Running Plesk 7.5.3, and with a single domain I want to have sub.domain.com redirect automatically to domain.com/sub
I've set the wildcard entry in the domain's DNS, but the mod_rewrite part is kicking the crap out of me.
Basically, * must redirect, with the exception of webmail, chat, and www.

Here's what I have in the domains root vhost.conf so far (found it on the sw-soft forum), but it seems to create a loop that causes the browser to return an error about too many redirects.

Code: Select all

ServerAlias *.domain.com
RewriteEngine On
RewriteCond %{HTTP_HOST} !^www\.domain.com$
RewriteCond %{HTTP_HOST} !^chat\.domain.com$
RewriteCond %{HTTP_HOST} !^webmail\.domain.com$
RewriteCond %{HTTP_HOST} ^[^.]+\.domain.com$
RewriteRule ^(.+) %{HTTP_HOST}$1 [C]
RewriteRule ^([^.]+)\.domain.com(.*) /home/httpd/vhosts/domain.com/httpdocs/$1$2

Can anyone see what I'm missing in this?

[breun]

I have a domain running the following .htaccess:

Options +FollowSymLinks
RewriteEngine on

# Rewrite <subdomain>.example.com/<path> to example.com/<subdomain>/<path>
#
# Skip rewrite if no hostname or if subdomain is www
RewriteCond %{HTTP_HOST} .
RewriteCond %{HTTP_HOST} !^www\. [NC]
# Extract (required) subdomain (%1), and first path element (%3), discard port number if present (%2)
RewriteCond %{HTTP_HOST}<>%{REQUEST_URI} ^([^.]+)\.example\.com(:80)?<>/([^/]*) [NC]
# Rewrite only when subdomain not equal to first path element (prevents mod_rewrite recursion)
RewriteCond %1<>%3 !^(.*)<>\1$ [NC]
# Rewrite to /subdomain/path
RewriteRule ^(.*) /%1/$1 [L]