views/helpers/FacebookLink.php

0001 <?php
0002 /**
0003  *  ocs-webserver
0004  *
0005  *  Copyright 2016 by pling GmbH.
0006  *
0007  *    This file is part of ocs-webserver.
0008  *
0009  *    This program is free software: you can redistribute it and/or modify
0010  *    it under the terms of the GNU Affero General Public License as
0011  *    published by the Free Software Foundation, either version 3 of the
0012  *    License, or (at your option) any later version.
0013  *
0014  *    This program is distributed in the hope that it will be useful,
0015  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
0016  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
0017  *    GNU Affero General Public License for more details.
0018  *
0019  *    You should have received a copy of the GNU Affero General Public License
0020  *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
0021  **/
0022
0023 class Default_View_Helper_FacebookLink extends Zend_View_Helper_Abstract
0024 {
0025
0026     public function facebookLink($strLink)
0027     {
0028         $strLink = trim($strLink);
0029
0030         if ($this->checkHttpProtocol($strLink)) {
0031             return $strLink;
0032         }
0033         if ($this->checkDomain($strLink)) {
0034             return '//'.$strLink;
0035         }
0036         return '//facebook.com/'.$strLink;
0037     }
0038
0039     private function checkHttpProtocol($strUrl)
0040     {
0041         if ((substr($strUrl, 0, 8) == 'https://')
0042             OR (substr($strUrl, 0, 7) == 'http://')
0043             OR (substr($strUrl, 0, 2) == '//'))
0044         {
0045             return true;
0046         } else {
0047             return false;
0048         }
0049     }
0050
0051     private function checkDomain($strUrl)
0052     {
0053         if ((strpos($strUrl, 'facebook') !== false)
0054             OR (strpos($strUrl, 'fb.me') !== false)
0055             OR (strpos($strUrl, '/') !== false))
0056         {
0057             return true;
0058         } else {
0059             return false;
0060         }
0061     }
0062
0063 }