Hi,

Currently I can access specific site in two ways:

 1. http://a.com/foo/bar
 2. http://a.com/index.php?url=foo/bar

What I'm trying to achive is to allow to do it only using first way, and make redirect 301 on the second to the first one. Here's the code which I made so far and put into .htaccess:

<IfModule mod_rewrite.c>  
  RewriteEngine On
  RewriteCond %{REQUEST_FILENAME} !-d
  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteRule ^(.*)$ index.php?url=$1 [QSA,L]

  #tricky part
  RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /index\.php\?url=?(.*)\ HTTP/
  RewriteRule ^index\.php$ http://a.com/$1 [R=301,L]
</IfModule>

Currently it do almost all the job, it's redirecting index.php to /, but index.php?url=foo/bar to /?url=foo/bar and I can't manage to make it right. TIA.