/**
  * Display a wildcard in the back end
  * @return string
  */
 public function generate()
 {
     if (TL_MODE == 'BE') {
         $objTemplate = new \BackendTemplate('be_wildcard');
         $objTemplate->wildcard = '### ' . utf8_strtoupper($GLOBALS['TL_LANG']['FMD']['subscribe'][0]) . ' ###';
         $objTemplate->title = $this->headline;
         $objTemplate->id = $this->id;
         $objTemplate->link = $this->name;
         $objTemplate->href = 'contao/main.php?do=themes&table=tl_module&act=edit&id=' . $this->id;
         return $objTemplate->parse();
     }
     $this->nl_channels = deserialize($this->nl_channels);
     // Return if there are no channels
     if (!is_array($this->nl_channels) || count($this->nl_channels) < 1) {
         return '';
     }
     return parent::generate();
 }
 /**
  * Add a new recipient
  */
 protected function addRecipient()
 {
     if (!\Environment::get('isAjaxRequest')) {
         return parent::addRecipient();
     }
     $arrChannels = \Input::post('channels');
     if (!is_array($arrChannels)) {
         $_SESSION['UNSUBSCRIBE_ERROR'] = $GLOBALS['TL_LANG']['ERR']['noChannels'];
         return false;
     }
     $arrChannels = array_intersect($arrChannels, $this->nl_channels);
     // see #3240
     // Check the selection
     if (!is_array($arrChannels) || empty($arrChannels)) {
         $_SESSION['SUBSCRIBE_ERROR'] = $GLOBALS['TL_LANG']['ERR']['noChannels'];
         return false;
     }
     $varInput = \Idna::encodeEmail(\Input::post('email', true));
     // Validate the e-mail address
     if (!\Validator::isEmail($varInput)) {
         $_SESSION['SUBSCRIBE_ERROR'] = $GLOBALS['TL_LANG']['ERR']['email'];
         return false;
     }
     $arrSubscriptions = array();
     // Get the existing active subscriptions
     if (($objSubscription = \NewsletterRecipientsModel::findBy(array("email=? AND active=1"), $varInput)) !== null) {
         $arrSubscriptions = $objSubscription->fetchEach('pid');
     }
     $arrNew = array_diff($arrChannels, $arrSubscriptions);
     // Return if there are no new subscriptions
     if (!is_array($arrNew) || empty($arrNew)) {
         $_SESSION['SUBSCRIBE_ERROR'] = $GLOBALS['TL_LANG']['ERR']['subscribed'];
         return false;
     }
     // Remove old subscriptions that have not been activated yet
     if (($objOld = \NewsletterRecipientsModel::findBy(array("email=? AND active=''"), $varInput)) !== null) {
         while ($objOld->next()) {
             $objOld->delete();
         }
     }
     $time = time();
     $strToken = md5(uniqid(mt_rand(), true));
     // Add the new subscriptions
     foreach ($arrNew as $id) {
         $objRecipient = new \NewsletterRecipientsModel();
         $objRecipient->pid = $id;
         $objRecipient->tstamp = $time;
         $objRecipient->email = $varInput;
         $objRecipient->active = '';
         $objRecipient->addedOn = $time;
         $objRecipient->ip = $this->anonymizeIp(\Environment::get('ip'));
         $objRecipient->token = $strToken;
         $objRecipient->confirmed = '';
         $objRecipient->save();
     }
     // Get the channels
     $objChannel = \NewsletterChannelModel::findByIds($arrChannels);
     // Prepare the e-mail text
     $strText = str_replace('##token##', $strToken, $this->nl_subscribe);
     $strText = str_replace('##domain##', \Idna::decode(\Environment::get('host')), $strText);
     $strText = str_replace('##link##', \Idna::decode(\Environment::get('base')) . \Environment::get('request') . (\Config::get('disableAlias') || strpos(\Environment::get('request'), '?') !== false ? '&' : '?') . 'token=' . $strToken, $strText);
     $strText = str_replace(array('##channel##', '##channels##'), implode("\n", $objChannel->fetchEach('title')), $strText);
     // Activation e-mail
     $objEmail = new \Email();
     $objEmail->from = $GLOBALS['TL_ADMIN_EMAIL'];
     $objEmail->fromName = $GLOBALS['TL_ADMIN_NAME'];
     $objEmail->subject = sprintf($GLOBALS['TL_LANG']['MSC']['nl_subject'], \Idna::decode(\Environment::get('host')));
     $objEmail->text = $strText;
     $objEmail->sendTo($varInput);
     // Redirect to the jumpTo page
     if ($this->jumpTo && ($objTarget = $this->objModel->getRelated('jumpTo')) !== null) {
         $this->redirect($this->generateFrontendUrl($objTarget->row()));
     }
     $_SESSION['SUBSCRIBE_CONFIRM'] = $GLOBALS['TL_LANG']['MSC']['nl_confirm'];
     return true;
 }