# canonicalize codeigniter url end points
# if your default controller is something other than "welcome" you should change the following
if ($request_uri ~* ^(/page(/index)?|/index(.php)?)/?$)
{
	rewrite ^(.*)$ / permanent;
}

# removes trailing "index" from all controllers
if ($request_uri ~* index/?$)
{
	rewrite ^/(.*)/index/?$ /$1 permanent;
}

# removes trailing slashes (prevents SEO duplicate content issues)
if (!-d $request_filename)
{
	rewrite ^/(.+)/$ /$1 permanent;
}

# removes access to "system" folder, also allows a "System.php" controller
if ($request_uri ~* ^/system)
{
	rewrite ^/(.*)$ /index.php?/$1 last;
	break;
}

# unless the request is for a valid file (image, js, css, etc.), send to bootstrap
if (!-e $request_filename)
{
	rewrite ^/(.*)$ /index.php?/$1 last;
	break;
}

# catch all
error_page 404 /index.php;