RewriteEngine on
Options +FollowSymLinks
RewriteBase /

RewriteRule !(.ttf|.eot|.woff|.xpi|.xml|.txt|.air|.exe|.zip|.pdf|.ico|.gif|.jpg|.png|.jpeg|.js|.swf|.css|.php|.html)$ mod_rewrite_redirector.php [L]

RewriteRule !.[a-zA-Z0-9]{2,4}$ mod_rewrite_redirector.php [L]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule . mod_rewrite_redirector.php [L]