silverstripe-framework/core/control/RootURLController.php

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<?php
/**
* This controller handles what happens when you visit the root URL
*/
class RootURLController extends Controller {
protected static $is_at_root = false;
/**
* Marks at that we are actually at the root URL before handing control over to another controller
*/
function index() {
self::$is_at_root = true;
Director::direct(self::get_homepage_urlsegment() . '/');
}
/**
* Return the URL segment for the current HTTP_HOST value
*/
static function get_homepage_urlsegment() {
$host = $_SERVER['HTTP_HOST'];
$host = str_replace('www.','',$host);
$SQL_host = Convert::raw2sql($host);
$homePageOBJ = DataObject::get_one("SiteTree", "HomepageForDomain = '$SQL_host'");
if($homePageOBJ) {
return $homePageOBJ->URLSegment;
} else {
return 'home';
}
}
/**
* Returns true if we're currently on the root page and should be redirecting to the root
* Doesn't take into account actions, post vars, or get vars
*/
static function should_be_on_root(SiteTree $currentPage) {
if(!self::$is_at_root) return self::get_homepage_urlsegment() == $currentPage->URLSegment;
else return false;
}
}
?>