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<?php /** *------------------------------------------------------------------------------ * iC Library - Library by Jooml!C, for Joomla! *------------------------------------------------------------------------------ * @package iC Library * @subpackage url * @copyright Copyright (c)2014-2015 Cyril Rezé, Jooml!C - All rights reserved * * @license GNU General Public License version 3 or later; see LICENSE.txt * @author Cyril Rezé (Lyr!C) * @link http://www.joomlic.com * * @version 1.0.4 2014-11-11 * @since 1.0.0 *------------------------------------------------------------------------------ */ // No direct access to this file defined('_JEXEC') or die(); /** * class iCUrl */ class iCUrl { /** * Function to check if an url exists * * @access public static * @param url to be tested * @return true or false * * @since 1.0.0 */ static public function url_exists($url) { $a_url = parse_url($url); if (!isset($a_url['port'])) $a_url['port'] = 80; $errno = 0; $errstr = ''; $timeout = 30; if(isset($a_url['host']) && $a_url['host']!=gethostbyname($a_url['host'])) { $fid = fsockopen($a_url['host'], $a_url['port'], $errno, $errstr, $timeout); if (!$fid) return false; $page = isset($a_url['path']) ?$a_url['path']:''; $page .= isset($a_url['query'])?'?'.$a_url['query']:''; fputs($fid, 'HEAD '.$page.' HTTP/1.0'."\r\n".'Host: '.$a_url['host']."\r\n\r\n"); $head = fread($fid, 4096); fclose($fid); return preg_match('#^HTTP/.*\s+[200|302]+\s#i', $head); } else { return false; } } /** * Function to parse an url and apply control of component set * * @access public static * @param $url: url to be parsed $component: component to be checked * @return validate url * * @since 1.0.0 */ static public function urlParsed($url, $component = null) { $parsed = parse_url($url); // Add http:// if scheme missing if ($component == 'scheme' && empty($parsed['scheme'])) { $link = 'http://' . ltrim($url, '/'); } else { $link = ltrim($url, '/'); } return $link; } }
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