/**
  * Rolls back activation procedures when de-activating the plugin
  *
  * @since    1.0
  */
 public function deactivate()
 {
     WPBRS_Controller_Cron::unregister_cron_jobs();
     WPBRS_Controller_Blocker::filter_referrers_htaccess(true);
     //remove WP Block Referrer Spam rules
     WPBRS_Model_Admin_Notices::remove_admin_notices();
     flush_rewrite_rules();
 }
 /** 
  * Download and update Referrer Spam list from URL
  *
  * @since    1.0
  * @param bool $reset
  * @return bool
  */
 public static function update_from_URL($reset = false)
 {
     $contextOptions = array("ssl" => array("verify_peer" => false, "verify_peer_name" => false));
     $new_list = file(self::GIT_LIST_URL, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES, stream_context_create($contextOptions));
     $settings = self::get_settings();
     if (!$reset && $settings && !empty($new_list)) {
         if (isset($settings['referrer_spam_list']) && $settings['referrer_spam_list'] != '' && $settings['referrer_spam_list'] != $new_list) {
             $new_list = array_unique(array_merge($new_list, $settings['referrer_spam_list']));
         }
     }
     $settings['referrer_spam_list'] = array_merge(array(), $new_list);
     $result = self::update_settings($settings);
     WPBRS_Controller_Blocker::filter_referrers_htaccess();
     return $result;
 }