summaryrefslogtreecommitdiffstats
path: root/library/vendor/Zend/TimeSync/Protocol.php
diff options
context:
space:
mode:
Diffstat (limited to 'library/vendor/Zend/TimeSync/Protocol.php')
-rw-r--r--library/vendor/Zend/TimeSync/Protocol.php148
1 files changed, 148 insertions, 0 deletions
diff --git a/library/vendor/Zend/TimeSync/Protocol.php b/library/vendor/Zend/TimeSync/Protocol.php
new file mode 100644
index 0000000..12dc6d9
--- /dev/null
+++ b/library/vendor/Zend/TimeSync/Protocol.php
@@ -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) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ * @version $Id$
+ */
+
+/**
+ * Abstract class definition for all timeserver protocols
+ *
+ * @category Zend
+ * @package Zend_TimeSync
+ * @copyright Copyright (c) 2005-2015 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;
+ }
+}