1 <?php
  2 
  3 /**
  4  * @package sapphire
  5  * @subpackage control
  6  */
  7 class RootURLController extends Controller {
  8 
  9     /**
 10      * @var bool
 11      */
 12     protected static $is_at_root = false;
 13     /**
 14      * @var string
 15      */
 16     protected static $default_homepage_link = 'home';
 17     /**
 18      * @var string
 19      */
 20     protected static $cached_homepage_link;
 21 
 22     /**
 23      * Get the full form (e.g. /home/) relative link to the home page for the current HTTP_HOST value. Note that the
 24      * link is trimmed of leading and trailing slashes before returning to ensure consistency.
 25      *
 26      * @return string
 27      */
 28     public static function get_homepage_link() {
 29         if (!self::$cached_homepage_link) {
 30             $host = str_replace('www.', null, $_SERVER['HTTP_HOST']);
 31             $SQL_host = Convert::raw2sql($host);
 32             $candidates = DataObject::get('SiteTree', "\"HomepageForDomain\" LIKE '%$SQL_host%'");
 33 
 34             if ($candidates)
 35                 foreach ($candidates as $candidate) {
 36                     if (preg_match('/(,|^) *' . preg_quote($host) . ' *(,|$)/', $candidate->HomepageForDomain)) {
 37                         self::$cached_homepage_link = trim($candidate->RelativeLink(true), '/');
 38                     }
 39                 }
 40 
 41             if (!self::$cached_homepage_link) {
 42                 if (
 43                         Object::has_extension('SiteTree', 'Translatable')
 44                         && $link = Translatable::get_homepage_link_by_locale(Translatable::get_current_locale())
 45                 ) {
 46                     self::$cached_homepage_link = $link;
 47                 } else {
 48                     self::$cached_homepage_link = self::get_default_homepage_link();
 49                 }
 50             }
 51 
 52             /* subsite_mod */
 53             if (singleton('SiteTree')->hasExtension('SiteTreeSubsites')) {
 54                 if ($subsite = Subsite::currentSubsite()) {
 55                     $link = SiteTreeSubsites::get_homepage_urlsegment_by_subsite($subsite->ID);
 56                     self::$cached_homepage_link = ($link) ? $link : $subsite->getPrimaryDomain() . '/' .self::get_default_homepage_link();
 57                 }
 58             }
 59             /* end_subsite_mod */
 60         }
 61 
 62         return self::$cached_homepage_link;
 63     }
 64 
 65     /**
 66      * Gets the link that denotes the homepage if there is not one explicitly defined for this HTTP_HOST value.
 67      *
 68      * @return string
 69      */
 70     public static function get_default_homepage_link() {
 71         return self::$default_homepage_link;
 72     }
 73 
 74     /**
 75      * Returns TRUE if a request to a certain page should be redirected to the site root (i.e. if the page acts as the
 76      * home page).
 77      *
 78      * @param SiteTree $page
 79      * @return bool
 80      */
 81     public static function should_be_on_root(SiteTree $page) {
 82         if (!self::$is_at_root && self::get_homepage_link() == trim($page->RelativeLink(true), '/')) {
 83             return!(
 84             $page->hasExtension('Translatable') && $page->Locale && $page->Locale != Translatable::default_locale()
 85             );
 86         }
 87 
 88         return false;
 89     }
 90 
 91     /**
 92      * Resets the cached homepage link value - useful for testing.
 93      */
 94     public static function reset() {
 95         self::$cached_homepage_link = null;
 96     }
 97 
 98     /**
 99      * @param SS_HTTPRequest $request
100      * @return SS_HTTPResponse
101      */
102     public function handleRequest(SS_HTTPRequest $request) {
103         self::$is_at_root = true;
104 
105         $this->pushCurrent();
106         $this->init();
107 
108         if (!DB::isActive() || !ClassInfo::hasTable('SiteTree')) {
109             $this->response = new SS_HTTPResponse();
110             $this->response->redirect(Director::absoluteBaseURL() . 'dev/build?returnURL=' . (isset($_GET['url']) ? urlencode($_GET['url']) : null));
111             return $this->response;
112         }
113 
114         $request = new SS_HTTPRequest($request->httpMethod(), self::get_homepage_link() . '/', $request->getVars(), $request->postVars()
115         );
116         $request->match('$URLSegment//$Action', true);
117         
118         $controller = new ModelAsController();
119         $result     = $controller->handleRequest($request);
120         
121         $this->popCurrent();
122         return $result;
123     }
124     
125 }
126