--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/Zend/TimeSync/Protocol.php	Mon Dec 13 18:29:26 2010 +0100
@@ -0,0 +1,148 @@
+<?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) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license   http://framework.zend.com/license/new-bsd     New BSD License
+ * @version   $Id: Protocol.php 20096 2010-01-06 02:05:09Z bkarwin $
+ */
+
+/**
+ * Abstract class definition for all timeserver protocols
+ *
+ * @category  Zend
+ * @package   Zend_TimeSync
+ * @copyright  Copyright (c) 2005-2010 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;
+    }
+}