You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
149 lines
3.7 KiB
PHP
149 lines
3.7 KiB
PHP
<?php
|
|
/**
|
|
* Zend Framework
|
|
*
|
|
* LICENSE
|
|
*
|
|
* This source file is subject to the new BSD license that is bundled
|
|
* with this package in the file LICENSE.txt.
|
|
* It is also available through the world-wide-web at this URL:
|
|
* http://framework.zend.com/license/new-bsd
|
|
* If you did not receive a copy of the license and are unable to
|
|
* obtain it through the world-wide-web, please send an email
|
|
* to license@zend.com so we can send you a copy immediately.
|
|
*
|
|
* @category Zend
|
|
* @package Zend_TimeSync
|
|
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
|
|
* @license http://framework.zend.com/license/new-bsd New BSD License
|
|
* @version $Id: Protocol.php 16209 2009-06-21 19:20:34Z thomas $
|
|
*/
|
|
|
|
/**
|
|
* Abstract class definition for all timeserver protocols
|
|
*
|
|
* @category Zend
|
|
* @package Zend_TimeSync
|
|
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
|
|
* @license http://framework.zend.com/license/new-bsd New BSD License
|
|
*/
|
|
abstract class Zend_TimeSync_Protocol
|
|
{
|
|
/**
|
|
* Holds the current socket connection
|
|
*
|
|
* @var array
|
|
*/
|
|
protected $_socket;
|
|
|
|
/**
|
|
* Exceptions that might have occured
|
|
*
|
|
* @var array
|
|
*/
|
|
protected $_exceptions;
|
|
|
|
/**
|
|
* Hostname for timeserver
|
|
*
|
|
* @var string
|
|
*/
|
|
protected $_timeserver;
|
|
|
|
/**
|
|
* Holds information passed/returned from timeserver
|
|
*
|
|
* @var array
|
|
*/
|
|
protected $_info = array();
|
|
|
|
/**
|
|
* Abstract method that prepares the data to send to the timeserver
|
|
*
|
|
* @return mixed
|
|
*/
|
|
abstract protected function _prepare();
|
|
|
|
/**
|
|
* Abstract method that reads the data returned from the timeserver
|
|
*
|
|
* @return mixed
|
|
*/
|
|
abstract protected function _read();
|
|
|
|
/**
|
|
* Abstract method that writes data to to the timeserver
|
|
*
|
|
* @param string $data Data to write
|
|
* @return void
|
|
*/
|
|
abstract protected function _write($data);
|
|
|
|
/**
|
|
* Abstract method that extracts the binary data returned from the timeserver
|
|
*
|
|
* @param string|array $data Data returned from the timeserver
|
|
* @return integer
|
|
*/
|
|
abstract protected function _extract($data);
|
|
|
|
/**
|
|
* Connect to the specified timeserver.
|
|
*
|
|
* @return void
|
|
* @throws Zend_TimeSync_Exception When the connection failed
|
|
*/
|
|
protected function _connect()
|
|
{
|
|
$socket = @fsockopen($this->_timeserver, $this->_port, $errno, $errstr,
|
|
Zend_TimeSync::$options['timeout']);
|
|
if ($socket === false) {
|
|
throw new Zend_TimeSync_Exception('could not connect to ' .
|
|
"'$this->_timeserver' on port '$this->_port', reason: '$errstr'");
|
|
}
|
|
|
|
$this->_socket = $socket;
|
|
}
|
|
|
|
/**
|
|
* Disconnects from the peer, closes the socket.
|
|
*
|
|
* @return void
|
|
*/
|
|
protected function _disconnect()
|
|
{
|
|
@fclose($this->_socket);
|
|
$this->_socket = null;
|
|
}
|
|
|
|
/**
|
|
* Return information sent/returned from the timeserver
|
|
*
|
|
* @return array
|
|
*/
|
|
public function getInfo()
|
|
{
|
|
if (empty($this->_info) === true) {
|
|
$this->_write($this->_prepare());
|
|
$timestamp = $this->_extract($this->_read());
|
|
}
|
|
|
|
return $this->_info;
|
|
}
|
|
|
|
/**
|
|
* Query this timeserver without using the fallback mechanism
|
|
*
|
|
* @param string|Zend_Locale $locale (Optional) Locale
|
|
* @return Zend_Date
|
|
*/
|
|
public function getDate($locale = null)
|
|
{
|
|
$this->_write($this->_prepare());
|
|
$timestamp = $this->_extract($this->_read());
|
|
|
|
$date = new Zend_Date($this, null, $locale);
|
|
return $date;
|
|
}
|
|
}
|