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<?php
/**
*------------------------------------------------------------------------------
* iC Library - Library by Jooml!C, for Joomla!
*------------------------------------------------------------------------------
* @package iC Library
* @subpackage url
* @copyright Copyright (c)2013-2019 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 1.4.3 2017-01-05
* @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($url)
{
if (@file_get_contents($url))
{
return true;
}
else
{
return false;
}
// Deprecated
// $a_url = parse_url($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
* $component component to be checked (default 'scheme')
*
* @return validate url
*
* @since 1.0.0
*/
static public function urlParsed($url, $component = 'scheme')
{
$parsed = parse_url($url);
// Add http:// if scheme missing
if ($component == 'scheme' && empty($parsed['scheme']))
{
$link = 'http://' . ltrim($url, '/');
}
else
{
$link = ltrim($url, '/');
}
return $link;
}
}