Kohana 3: Hide part of url

Question

I have a problem with hiding part of url in Kohana 3.

There are controlers stored in admin subfolder. These controlers power admin panel of site. So when I type :

http://mysite.xyz/admin

it works ok. I need only admin panel of that kohana project, and I decided to create subdomain admin.

So now when I type:

http://admin.mysite.xyz/admin

it works ok. But I want to hide that admin part of url and when I will type:

http://admin.mysite.xyz

I will not load kohana site, but admin panel.

---

Here is my .htaccess:

RewriteEngine On
RewriteBase /

###### Add trailing slash (optional) ######
RewriteCond %{REQUEST_METHOD} !POST
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.+[^/])$ %{REQUEST_URI}/ [L,R=301,NE]

RewriteCond %{REQUEST_METHOD} !POST
RewriteRule ^(.*)index.php/(.*)$ /$1$2 [R=301,L,NE]

RewriteCond $1 ^(index\.php|robots\.txt|favicon\.ico|media)
RewriteRule ^(?:application|modules|system)\b.* index.php/$0 [L]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.+)$ index.php?kohana_uri=$1 [L,QSA]

RewriteCond %{HTTP_HOST} ^(www.)?admin.schoener-tauchen.pl$
RewriteRule ^(/)?$ admin [L]

RewriteRule ^admin/(.+)$ $1 [L,NC,R]

It doesn't work. It gives 404 error.

Can someone help, please?

PS. Changing Kohana routing is unfortunately very complicated in this case. Htaccess changes seems to be easier.

---

EDIT

bootstrap.php route:

Route::set('admin', 'admin(/<controller>(,<action>(,<id>)(,<id2>)(,<id3>)))')
    ->defaults(array(
        'directory' => 'admin',
        'controller' => 'home',
        'action'     => 'index',
));

Route::set('default', '(<controller>(,<action>(,<id>)))', array('controller'=>'\w+','controller'=>'\w+', 'action'=>'\w+', 'param' => '.+'))
    ->defaults(array(
        'directory' => 'admin',
        'controller' => 'home',
        'action'     => 'index',
));

Answer 1

Ok. I solved it by the hack in .htaccess:

RewriteRule ^admin/(.+)$ $1 [L,NC,R]

In view's files and controllers there are links, URLs which contain that admin. Htaccess force it to skip that admin part.