public function index()
 {
     wfProfileIn(__METHOD__);
     $socialSharingService = SocialSharingService::getInstance();
     $this->setVal('networks', $socialSharingService->getNetworks(array('facebook', 'twitter', 'plusone', 'email')));
     wfProfileOut(__METHOD__);
 }
 /**
  * Returns pre-formatted social sharing urls and codes
  * @requestParam string fileTitle
  * @requestParam string articleTitle	(optional)
  * @responseParam string url - raw url that is automically determined.  This is determined to be either article url or file page url.
  * @responseParam string articleUrl - url to article page
  * @responseParam string fileUrl - url to file page
  * @responseParam string networks - contains id(facebook, twitter, etc) and urls of external social networks
  */
 public function getShareCodes()
 {
     $fileTitle = urldecode($this->request->getVal('fileTitle', ''));
     $file = wfFindFile($fileTitle);
     $shareUrl = '';
     $articleUrl = '';
     $articleNS = '';
     $articleTitleText = '';
     $fileUrl = '';
     $thumbUrl = '';
     $networks = array();
     if (!empty($file)) {
         $fileTitleObj = Title::newFromText($fileTitle, NS_FILE);
         $fileTitle = $fileTitleObj->getText();
         $articleTitle = $this->request->getVal('articleTitle');
         $articleTitleObj = Title::newFromText($articleTitle);
         if (!empty($articleTitleObj) && $articleTitleObj->exists()) {
             $fileParam = wfUrlencode($fileTitleObj->getDBKey());
             $articleUrl = $articleTitleObj->getFullURL("file={$fileParam}");
             $articleNS = $articleTitleObj->getNamespace();
             $articleTitleText = $articleTitleObj->getText();
         }
         // check if the file is added to the wiki
         if (WikiaFileHelper::isAdded($file)) {
             $fileUrl = $fileTitleObj->getFullURL();
         } else {
             $fileUrl = WikiaFileHelper::getFullUrlPremiumVideo($fileTitleObj->getDBkey());
         }
         // determine share url
         $sharingNamespaces = array(NS_MAIN, NS_CATEGORY);
         $shareUrl = !empty($articleUrl) && in_array($articleNS, $sharingNamespaces) ? $articleUrl : $fileUrl;
         $thumb = $file->transform(array('width' => 300, 'height' => 250));
         $thumbUrl = $thumb->getUrl();
         if (WikiaFileHelper::isFileTypeVideo($file)) {
             $msgSuffix = '-video';
         } else {
             $msgSuffix = '';
         }
         $msgArticleTitle = empty($articleUrl) ? $fileTitle : $articleTitleText;
         $linkDescription = wfMessage('lightbox-share-description' . $msgSuffix, $msgArticleTitle, $this->wg->Sitename)->text();
         $shareNetworks = SocialSharingService::getInstance()->getNetworks(array('facebook', 'twitter', 'stumbleupon', 'reddit', 'plusone'));
         foreach ($shareNetworks as $network) {
             $networks[] = array('id' => $network->getId(), 'url' => $network->getUrl($shareUrl, $linkDescription));
         }
     }
     $this->shareUrl = $shareUrl;
     $this->articleUrl = $articleUrl;
     $this->fileUrl = $fileUrl;
     $this->networks = $networks;
     $this->fileTitle = $fileTitle;
     $this->imageUrl = $thumbUrl;
     // set cache control to 1 day
     $this->response->setCacheValidity(WikiaResponse::CACHE_STANDARD);
 }