silverstripe-cms/code/Controllers/RootURLController.php
2022-10-18 18:21:09 +13:00

114 lines
3.3 KiB
PHP

<?php
namespace SilverStripe\CMS\Controllers;
use SilverStripe\CMS\Model\SiteTree;
use SilverStripe\Control\Controller;
use SilverStripe\Control\Director;
use SilverStripe\Control\HTTPRequest;
use SilverStripe\Control\HTTPResponse;
use SilverStripe\Core\ClassInfo;
use SilverStripe\Core\Config\Config;
use SilverStripe\Core\Resettable;
use SilverStripe\ORM\DB;
class RootURLController extends Controller implements Resettable
{
/**
* @var bool
*/
protected static $is_at_root = false;
/**
* @config
* @var string
*/
private static $default_homepage_link = 'home';
/**
* @var string
*/
protected static $cached_homepage_link;
/**
* Get the full form (e.g. /home/) relative link to the home page for the current HTTP_HOST value. Note that the
* link is trimmed of leading and trailing slashes before returning to ensure consistency.
*
* @return string
*/
public static function get_homepage_link()
{
if (!self::$cached_homepage_link) {
$link = Config::inst()->get(__CLASS__, 'default_homepage_link');
singleton(__CLASS__)->extend('updateHomepageLink', $link);
self::$cached_homepage_link = $link;
}
return self::$cached_homepage_link;
}
/**
* Returns TRUE if a request to a certain page should be redirected to the site root (i.e. if the page acts as the
* home page).
*
* @param SiteTree $page
* @return bool
*/
public static function should_be_on_root(SiteTree $page)
{
return (!self::$is_at_root && self::get_homepage_link() == trim($page->RelativeLink(true) ?? '', '/'));
}
/**
* Resets the cached homepage link value - useful for testing.
*/
public static function reset()
{
self::$cached_homepage_link = null;
}
protected function beforeHandleRequest(HTTPRequest $request)
{
parent::beforeHandleRequest($request);
self::$is_at_root = true;
/** @skipUpgrade */
if (!DB::is_active() || !ClassInfo::hasTable('SiteTree')) {
$this->getResponse()->redirect(Controller::join_links(
Director::absoluteBaseURL(),
'dev/build',
'?' . http_build_query([
'returnURL' => isset($_GET['url']) ? $_GET['url'] : null,
])
));
}
}
public function handleRequest(HTTPRequest $request): HTTPResponse
{
self::$is_at_root = true;
$this->beforeHandleRequest($request);
if (!$this->getResponse()->isFinished()) {
/** @skipUpgrade */
if (!DB::is_active() || !ClassInfo::hasTable('SiteTree')) {
$this->getResponse()->redirect(Director::absoluteBaseURL() . 'dev/build?returnURL=' . (isset($_GET['url']) ? urlencode($_GET['url']) : null));
return $this->getResponse();
}
$request->setUrl(self::get_homepage_link() . '/');
$request->match('$URLSegment//$Action', true);
$controller = new ModelAsController();
$response = $controller->handleRequest($request);
$this->prepareResponse($response);
}
$this->afterHandleRequest();
return $this->getResponse();
}
}