--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/web/enmi/Zend/Cache/Backend.php Thu Jan 20 19:30:54 2011 +0100
@@ -0,0 +1,266 @@
+<?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_Cache
+ * @subpackage Zend_Cache_Backend
+ * @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: Backend.php 20880 2010-02-03 18:18:32Z matthew $
+ */
+
+
+/**
+ * @package Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ */
+class Zend_Cache_Backend
+{
+ /**
+ * Frontend or Core directives
+ *
+ * =====> (int) lifetime :
+ * - Cache lifetime (in seconds)
+ * - If null, the cache is valid forever
+ *
+ * =====> (int) logging :
+ * - if set to true, a logging is activated throw Zend_Log
+ *
+ * @var array directives
+ */
+ protected $_directives = array(
+ 'lifetime' => 3600,
+ 'logging' => false,
+ 'logger' => null
+ );
+
+ /**
+ * Available options
+ *
+ * @var array available options
+ */
+ protected $_options = array();
+
+ /**
+ * Constructor
+ *
+ * @param array $options Associative array of options
+ * @throws Zend_Cache_Exception
+ * @return void
+ */
+ public function __construct(array $options = array())
+ {
+ while (list($name, $value) = each($options)) {
+ $this->setOption($name, $value);
+ }
+ }
+
+ /**
+ * Set the frontend directives
+ *
+ * @param array $directives Assoc of directives
+ * @throws Zend_Cache_Exception
+ * @return void
+ */
+ public function setDirectives($directives)
+ {
+ if (!is_array($directives)) Zend_Cache::throwException('Directives parameter must be an array');
+ while (list($name, $value) = each($directives)) {
+ if (!is_string($name)) {
+ Zend_Cache::throwException("Incorrect option name : $name");
+ }
+ $name = strtolower($name);
+ if (array_key_exists($name, $this->_directives)) {
+ $this->_directives[$name] = $value;
+ }
+
+ }
+
+ $this->_loggerSanity();
+ }
+
+ /**
+ * Set an option
+ *
+ * @param string $name
+ * @param mixed $value
+ * @throws Zend_Cache_Exception
+ * @return void
+ */
+ public function setOption($name, $value)
+ {
+ if (!is_string($name)) {
+ Zend_Cache::throwException("Incorrect option name : $name");
+ }
+ $name = strtolower($name);
+ if (array_key_exists($name, $this->_options)) {
+ $this->_options[$name] = $value;
+ }
+ }
+
+ /**
+ * Get the life time
+ *
+ * if $specificLifetime is not false, the given specific life time is used
+ * else, the global lifetime is used
+ *
+ * @param int $specificLifetime
+ * @return int Cache life time
+ */
+ public function getLifetime($specificLifetime)
+ {
+ if ($specificLifetime === false) {
+ return $this->_directives['lifetime'];
+ }
+ return $specificLifetime;
+ }
+
+ /**
+ * Return true if the automatic cleaning is available for the backend
+ *
+ * DEPRECATED : use getCapabilities() instead
+ *
+ * @deprecated
+ * @return boolean
+ */
+ public function isAutomaticCleaningAvailable()
+ {
+ return true;
+ }
+
+ /**
+ * Determine system TMP directory and detect if we have read access
+ *
+ * inspired from Zend_File_Transfer_Adapter_Abstract
+ *
+ * @return string
+ * @throws Zend_Cache_Exception if unable to determine directory
+ */
+ public function getTmpDir()
+ {
+ $tmpdir = array();
+ foreach (array($_ENV, $_SERVER) as $tab) {
+ foreach (array('TMPDIR', 'TEMP', 'TMP', 'windir', 'SystemRoot') as $key) {
+ if (isset($tab[$key])) {
+ if (($key == 'windir') or ($key == 'SystemRoot')) {
+ $dir = realpath($tab[$key] . '\\temp');
+ } else {
+ $dir = realpath($tab[$key]);
+ }
+ if ($this->_isGoodTmpDir($dir)) {
+ return $dir;
+ }
+ }
+ }
+ }
+ $upload = ini_get('upload_tmp_dir');
+ if ($upload) {
+ $dir = realpath($upload);
+ if ($this->_isGoodTmpDir($dir)) {
+ return $dir;
+ }
+ }
+ if (function_exists('sys_get_temp_dir')) {
+ $dir = sys_get_temp_dir();
+ if ($this->_isGoodTmpDir($dir)) {
+ return $dir;
+ }
+ }
+ // Attemp to detect by creating a temporary file
+ $tempFile = tempnam(md5(uniqid(rand(), TRUE)), '');
+ if ($tempFile) {
+ $dir = realpath(dirname($tempFile));
+ unlink($tempFile);
+ if ($this->_isGoodTmpDir($dir)) {
+ return $dir;
+ }
+ }
+ if ($this->_isGoodTmpDir('/tmp')) {
+ return '/tmp';
+ }
+ if ($this->_isGoodTmpDir('\\temp')) {
+ return '\\temp';
+ }
+ Zend_Cache::throwException('Could not determine temp directory, please specify a cache_dir manually');
+ }
+
+ /**
+ * Verify if the given temporary directory is readable and writable
+ *
+ * @param $dir temporary directory
+ * @return boolean true if the directory is ok
+ */
+ protected function _isGoodTmpDir($dir)
+ {
+ if (is_readable($dir)) {
+ if (is_writable($dir)) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ /**
+ * Make sure if we enable logging that the Zend_Log class
+ * is available.
+ * Create a default log object if none is set.
+ *
+ * @throws Zend_Cache_Exception
+ * @return void
+ */
+ protected function _loggerSanity()
+ {
+ if (!isset($this->_directives['logging']) || !$this->_directives['logging']) {
+ return;
+ }
+
+ if (isset($this->_directives['logger'])) {
+ if ($this->_directives['logger'] instanceof Zend_Log) {
+ return;
+ }
+ Zend_Cache::throwException('Logger object is not an instance of Zend_Log class.');
+ }
+
+ // Create a default logger to the standard output stream
+ require_once 'Zend/Log.php';
+ require_once 'Zend/Log/Writer/Stream.php';
+ $logger = new Zend_Log(new Zend_Log_Writer_Stream('php://output'));
+ $this->_directives['logger'] = $logger;
+ }
+
+ /**
+ * Log a message at the WARN (4) priority.
+ *
+ * @param string $message
+ * @throws Zend_Cache_Exception
+ * @return void
+ */
+ protected function _log($message, $priority = 4)
+ {
+ if (!$this->_directives['logging']) {
+ return;
+ }
+
+ if (!isset($this->_directives['logger'])) {
+ Zend_Cache::throwException('Logging is enabled but logger is not set.');
+ }
+ $logger = $this->_directives['logger'];
+ if (!$logger instanceof Zend_Log) {
+ Zend_Cache::throwException('Logger object is not an instance of Zend_Log class.');
+ }
+ $logger->log($message, $priority);
+ }
+}