67 lines
1.4 KiB
PHP
67 lines
1.4 KiB
PHP
<?php defined('SYSPATH') OR die('No direct access allowed.');
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/**
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* Remote url/file helper.
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*
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* $Id: remote.php 4679 2009-11-10 01:45:52Z isaiah $
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*
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* @package Core
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* @author Kohana Team
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* @copyright (c) 2007-2009 Kohana Team
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* @license http://kohanaphp.com/license
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*/
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class remote_Core {
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public static function status($url)
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{
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if ( ! valid::url($url, 'http'))
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return FALSE;
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// Get the hostname and path
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$url = parse_url($url);
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if (empty($url['path']))
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{
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// Request the root document
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$url['path'] = '/';
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}
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// Open a remote connection
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$remote = fsockopen($url['host'], 80, $errno, $errstr, 5);
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if ( ! is_resource($remote))
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return FALSE;
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// Set CRLF
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$CRLF = "\r\n";
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// Send request
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fwrite($remote, 'HEAD '.$url['path'].(isset($url['query']) ? '?'.$url['query'] : '').' HTTP/1.0'.$CRLF);
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fwrite($remote, 'Host: '.$url['host'].$CRLF);
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fwrite($remote, 'Connection: close'.$CRLF);
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fwrite($remote, 'User-Agent: Kohana Framework (+http://kohanaphp.com/)'.$CRLF);
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// Send one more CRLF to terminate the headers
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fwrite($remote, $CRLF);
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while ( ! feof($remote))
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{
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// Get the line
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$line = trim(fgets($remote, 512));
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if ($line !== '' AND preg_match('#^HTTP/1\.[01] (\d{3})#', $line, $matches))
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{
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// Response code found
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$response = (int) $matches[1];
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break;
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}
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}
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// Close the connection
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fclose($remote);
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return isset($response) ? $response : FALSE;
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}
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} // End remote
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