a grand renaming so that the most significant portion of the name comes first

php-practice/web-cake/html/cake/libs/cache/apc.php

@@ -0,0 +1,123 @@
+<?php
+/**
+ * APC storage engine for cache.
+ *
+ *
+ * PHP versions 4 and 5
+ *
+ * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
+ * Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
+ *
+ * Licensed under The MIT License
+ * Redistributions of files must retain the above copyright notice.
+ *
+ * @copyright     Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
+ * @link          http://cakephp.org CakePHP(tm) Project
+ * @package       cake
+ * @subpackage    cake.cake.libs.cache
+ * @since         CakePHP(tm) v 1.2.0.4933
+ * @license       MIT License (http://www.opensource.org/licenses/mit-license.php)
+ */
+
+/**
+ * APC storage engine for cache
+ *
+ * @package       cake
+ * @subpackage    cake.cake.libs.cache
+ */
+class ApcEngine extends CacheEngine {
+
+/**
+ * Initialize the Cache Engine
+ *
+ * Called automatically by the cache frontend
+ * To reinitialize the settings call Cache::engine('EngineName', [optional] settings = array());
+ *
+ * @param array $setting array of setting for the engine
+ * @return boolean True if the engine has been successfully initialized, false if not
+ * @see CacheEngine::__defaults
+ * @access public
+ */
+	function init($settings = array()) {
+		parent::init(array_merge(array('engine' => 'Apc', 'prefix' => Inflector::slug(APP_DIR) . '_'), $settings));
+		return function_exists('apc_cache_info');
+	}
+
+/**
+ * Write data for key into cache
+ *
+ * @param string $key Identifier for the data
+ * @param mixed $value Data to be cached
+ * @param integer $duration How long to cache the data, in seconds
+ * @return boolean True if the data was succesfully cached, false on failure
+ * @access public
+ */
+	function write($key, &$value, $duration) {
+		$expires = time() + $duration;
+		apc_store($key.'_expires', $expires, $duration);
+		return apc_store($key, $value, $duration);
+	}
+
+/**
+ * Read a key from the cache
+ *
+ * @param string $key Identifier for the data
+ * @return mixed The cached data, or false if the data doesn't exist, has expired, or if there was an error fetching it
+ * @access public
+ */
+	function read($key) {
+		$time = time();
+		$cachetime = intval(apc_fetch($key.'_expires'));
+		if ($cachetime < $time || ($time + $this->settings['duration']) < $cachetime) {
+			return false;
+		}
+		return apc_fetch($key);
+	}
+
+/**
+ * Increments the value of an integer cached key
+ *
+ * @param string $key Identifier for the data
+ * @param integer $offset How much to increment
+ * @param integer $duration How long to cache the data, in seconds
+ * @return New incremented value, false otherwise
+ * @access public
+ */
+	function increment($key, $offset = 1) {
+		return apc_inc($key, $offset);
+	}
+
+/**
+ * Decrements the value of an integer cached key
+ *
+ * @param string $key Identifier for the data
+ * @param integer $offset How much to substract
+ * @param integer $duration How long to cache the data, in seconds
+ * @return New decremented value, false otherwise
+ * @access public
+ */
+	function decrement($key, $offset = 1) {
+		return apc_dec($key, $offset);
+	}
+
+/**
+ * Delete a key from the cache
+ *
+ * @param string $key Identifier for the data
+ * @return boolean True if the value was succesfully deleted, false if it didn't exist or couldn't be removed
+ * @access public
+ */
+	function delete($key) {
+		return apc_delete($key);
+	}
+
+/**
+ * Delete all keys from the cache
+ *
+ * @return boolean True if the cache was succesfully cleared, false otherwise
+ * @access public
+ */
+	function clear() {
+		return apc_clear_cache('user');
+	}
+}

php-practice/web-cake/html/cake/libs/cache/file.php

@@ -0,0 +1,272 @@
+<?php
+/**
+ * File Storage engine for cache
+ *
+ *
+ * PHP versions 4 and 5
+ *
+ * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
+ * Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
+ *
+ * Licensed under The MIT License
+ * Redistributions of files must retain the above copyright notice.
+ *
+ * @copyright     Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
+ * @link          http://cakephp.org CakePHP(tm) Project
+ * @package       cake
+ * @subpackage    cake.cake.libs.cache
+ * @since         CakePHP(tm) v 1.2.0.4933
+ * @license       MIT License (http://www.opensource.org/licenses/mit-license.php)
+ */
+
+if (!class_exists('File')) {
+	require LIBS . 'file.php';
+}
+/**
+ * File Storage engine for cache
+ *
+ * @todo use the File and Folder classes (if it's not a too big performance hit)
+ * @package       cake
+ * @subpackage    cake.cake.libs.cache
+ */
+class FileEngine extends CacheEngine {
+
+/**
+ * Instance of File class
+ *
+ * @var File
+ * @access protected
+ */
+	var $_File = null;
+
+/**
+ * Settings
+ * 
+ * - path = absolute path to cache directory, default => CACHE
+ * - prefix = string prefix for filename, default => cake_
+ * - lock = enable file locking on write, default => false
+ * - serialize = serialize the data, default => true
+ *
+ * @var array
+ * @see CacheEngine::__defaults
+ * @access public
+ */
+	var $settings = array();
+
+/**
+ * True unless FileEngine::__active(); fails
+ *
+ * @var boolean
+ * @access protected
+ */
+	var $_init = true;
+
+/**
+ * Initialize the Cache Engine
+ *
+ * Called automatically by the cache frontend
+ * To reinitialize the settings call Cache::engine('EngineName', [optional] settings = array());
+ *
+ * @param array $setting array of setting for the engine
+ * @return boolean True if the engine has been successfully initialized, false if not
+ * @access public
+ */
+	function init($settings = array()) {
+		parent::init(array_merge(
+			array(
+				'engine' => 'File', 'path' => CACHE, 'prefix'=> 'cake_', 'lock'=> false,
+				'serialize'=> true, 'isWindows' => false
+			),
+			$settings
+		));
+		if (!isset($this->_File)) {
+			$this->_File =& new File($this->settings['path'] . DS . 'cake');
+		}
+
+		if (DIRECTORY_SEPARATOR === '\\') {
+			$this->settings['isWindows'] = true;
+		}
+
+		$path = $this->_File->Folder->cd($this->settings['path']);
+		if ($path) {
+			$this->settings['path'] = $path;
+		}
+		return $this->__active();
+	}
+
+/**
+ * Garbage collection. Permanently remove all expired and deleted data
+ *
+ * @return boolean True if garbage collection was succesful, false on failure
+ * @access public
+ */
+	function gc() {
+		return $this->clear(true);
+	}
+
+/**
+ * Write data for key into cache
+ *
+ * @param string $key Identifier for the data
+ * @param mixed $data Data to be cached
+ * @param mixed $duration How long to cache the data, in seconds
+ * @return boolean True if the data was succesfully cached, false on failure
+ * @access public
+ */
+	function write($key, &$data, $duration) {
+		if ($data === '' || !$this->_init) {
+			return false;
+		}
+
+		if ($this->_setKey($key) === false) {
+			return false;
+		}
+
+		$lineBreak = "\n";
+
+		if ($this->settings['isWindows']) {
+			$lineBreak = "\r\n";
+		}
+
+		if (!empty($this->settings['serialize'])) {
+			if ($this->settings['isWindows']) {
+				$data = str_replace('\\', '\\\\\\\\', serialize($data));
+			} else {
+				$data = serialize($data);
+			}
+		}
+
+		if ($this->settings['lock']) {
+			$this->_File->lock = true;
+		}
+		$expires = time() + $duration;
+		$contents = $expires . $lineBreak . $data . $lineBreak;
+		$success = $this->_File->write($contents);
+		$this->_File->close();
+		return $success;
+	}
+
+/**
+ * Read a key from the cache
+ *
+ * @param string $key Identifier for the data
+ * @return mixed The cached data, or false if the data doesn't exist, has expired, or if there was an error fetching it
+ * @access public
+ */
+	function read($key) {
+		if ($this->_setKey($key) === false || !$this->_init || !$this->_File->exists()) {
+			return false;
+		}
+		if ($this->settings['lock']) {
+			$this->_File->lock = true;
+		}
+		$time = time();
+		$cachetime = intval($this->_File->read(11));
+
+		if ($cachetime !== false && ($cachetime < $time || ($time + $this->settings['duration']) < $cachetime)) {
+			$this->_File->close();
+			return false;
+		}
+		$data = $this->_File->read(true);
+
+		if ($data !== '' && !empty($this->settings['serialize'])) {
+			if ($this->settings['isWindows']) {
+				$data = str_replace('\\\\\\\\', '\\', $data);
+			}
+			$data = unserialize((string)$data);
+		}
+		$this->_File->close();
+		return $data;
+	}
+
+/**
+ * Delete a key from the cache
+ *
+ * @param string $key Identifier for the data
+ * @return boolean True if the value was successfully deleted, false if it didn't exist or couldn't be removed
+ * @access public
+ */
+	function delete($key) {
+		if ($this->_setKey($key) === false || !$this->_init) {
+			return false;
+		}
+		return $this->_File->delete();
+	}
+
+/**
+ * Delete all values from the cache
+ *
+ * @param boolean $check Optional - only delete expired cache items
+ * @return boolean True if the cache was succesfully cleared, false otherwise
+ * @access public
+ */
+	function clear($check) {
+		if (!$this->_init) {
+			return false;
+		}
+		$dir = dir($this->settings['path']);
+		if ($check) {
+			$now = time();
+			$threshold = $now - $this->settings['duration'];
+		}
+		$prefixLength = strlen($this->settings['prefix']);
+		while (($entry = $dir->read()) !== false) {
+			if (substr($entry, 0, $prefixLength) !== $this->settings['prefix']) {
+				continue;
+			}
+			if ($this->_setKey($entry) === false) {
+				continue;
+			}
+			if ($check) {
+				$mtime = $this->_File->lastChange();
+
+				if ($mtime === false || $mtime > $threshold) {
+					continue;
+				}
+
+				$expires = $this->_File->read(11);
+				$this->_File->close();
+
+				if ($expires > $now) {
+					continue;
+				}
+			}
+			$this->_File->delete();
+		}
+		$dir->close();
+		return true;
+	}
+
+/**
+ * Get absolute file for a given key
+ *
+ * @param string $key The key
+ * @return mixed Absolute cache file for the given key or false if erroneous
+ * @access private
+ */
+	function _setKey($key) {
+		$this->_File->Folder->cd($this->settings['path']);
+		if ($key !== $this->_File->name) {
+			$this->_File->name = $key;
+			$this->_File->path = null;
+		}
+		if (!$this->_File->Folder->inPath($this->_File->pwd(), true)) {
+			return false;
+		}
+	}
+
+/**
+ * Determine is cache directory is writable
+ *
+ * @return boolean
+ * @access private
+ */
+	function __active() {
+		if ($this->_init && !is_writable($this->settings['path'])) {
+			$this->_init = false;
+			trigger_error(sprintf(__('%s is not writable', true), $this->settings['path']), E_USER_WARNING);
+			return false;
+		}
+		return true;
+	}
+}

php-practice/web-cake/html/cake/libs/cache/memcache.php

@@ -0,0 +1,217 @@
+<?php
+/**
+ * Memcache storage engine for cache
+ *
+ *
+ * PHP versions 4 and 5
+ *
+ * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
+ * Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
+ *
+ * Licensed under The MIT License
+ * Redistributions of files must retain the above copyright notice.
+ *
+ * @copyright     Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
+ * @link          http://cakephp.org CakePHP(tm) Project
+ * @package       cake
+ * @subpackage    cake.cake.libs.cache
+ * @since         CakePHP(tm) v 1.2.0.4933
+ * @license       MIT License (http://www.opensource.org/licenses/mit-license.php)
+ */
+
+/**
+ * Memcache storage engine for cache.  Memcache has some limitations in the amount of 
+ * control you have over expire times far in the future.  See MemcacheEngine::write() for
+ * more information.
+ *
+ * @package       cake
+ * @subpackage    cake.cake.libs.cache
+ */
+class MemcacheEngine extends CacheEngine {
+
+/**
+ * Memcache wrapper.
+ *
+ * @var Memcache
+ * @access private
+ */
+	var $__Memcache = null;
+
+/**
+ * Settings
+ *
+ *  - servers = string or array of memcache servers, default => 127.0.0.1. If an
+ *    array MemcacheEngine will use them as a pool.
+ *  - compress = boolean, default => false
+ *
+ * @var array
+ * @access public
+ */
+	var $settings = array();
+
+/**
+ * Initialize the Cache Engine
+ *
+ * Called automatically by the cache frontend
+ * To reinitialize the settings call Cache::engine('EngineName', [optional] settings = array());
+ *
+ * @param array $setting array of setting for the engine
+ * @return boolean True if the engine has been successfully initialized, false if not
+ * @access public
+ */
+	function init($settings = array()) {
+		if (!class_exists('Memcache')) {
+			return false;
+		}
+		parent::init(array_merge(array(
+			'engine'=> 'Memcache', 
+			'prefix' => Inflector::slug(APP_DIR) . '_', 
+			'servers' => array('127.0.0.1'),
+			'compress'=> false
+			), $settings)
+		);
+
+		if ($this->settings['compress']) {
+			$this->settings['compress'] = MEMCACHE_COMPRESSED;
+		}
+		if (!is_array($this->settings['servers'])) {
+			$this->settings['servers'] = array($this->settings['servers']);
+		}
+		if (!isset($this->__Memcache)) {
+			$return = false;
+			$this->__Memcache =& new Memcache();
+			foreach ($this->settings['servers'] as $server) {
+				list($host, $port) = $this->_parseServerString($server);
+				if ($this->__Memcache->addServer($host, $port)) {
+					$return = true;
+				}
+			}
+			return $return;
+		}
+		return true;
+	}
+
+/**
+ * Parses the server address into the host/port.  Handles both IPv6 and IPv4
+ * addresses
+ *
+ * @param string $server The server address string.
+ * @return array Array containing host, port
+ */
+	function _parseServerString($server) {
+		if (substr($server, 0, 1) == '[') {
+			$position = strpos($server, ']:');
+			if ($position !== false) {
+				$position++;
+			}
+		} else {
+		    $position = strpos($server, ':');
+		}
+		$port = 11211;
+		$host = $server;
+		if ($position !== false) {
+			$host = substr($server, 0, $position);
+			$port = substr($server, $position + 1);
+		}
+		return array($host, $port);
+	}
+
+/**
+ * Write data for key into cache.  When using memcache as your cache engine
+ * remember that the Memcache pecl extension does not support cache expiry times greater 
+ * than 30 days in the future. If you wish to create cache entries that do not expire, set the duration
+ * to `0` in your cache configuration.
+ *
+ * @param string $key Identifier for the data
+ * @param mixed $value Data to be cached
+ * @param integer $duration How long to cache the data, in seconds
+ * @return boolean True if the data was succesfully cached, false on failure
+ * @see http://php.net/manual/en/memcache.set.php
+ * @access public
+ */
+	function write($key, &$value, $duration) {
+		return $this->__Memcache->set($key, $value, $this->settings['compress'], $duration);
+	}
+
+/**
+ * Read a key from the cache
+ *
+ * @param string $key Identifier for the data
+ * @return mixed The cached data, or false if the data doesn't exist, has expired, or if there was an error fetching it
+ * @access public
+ */
+	function read($key) {
+		return $this->__Memcache->get($key);
+	}
+
+/**
+ * Increments the value of an integer cached key
+ *
+ * @param string $key Identifier for the data
+ * @param integer $offset How much to increment
+ * @param integer $duration How long to cache the data, in seconds
+ * @return New incremented value, false otherwise
+ * @access public
+ */
+	function increment($key, $offset = 1) {
+		if ($this->settings['compress']) {
+			trigger_error(sprintf(__('Method increment() not implemented for compressed cache in %s', true), get_class($this)), E_USER_ERROR);
+		}
+		return $this->__Memcache->increment($key, $offset);
+	}
+
+/**
+ * Decrements the value of an integer cached key
+ *
+ * @param string $key Identifier for the data
+ * @param integer $offset How much to substract
+ * @param integer $duration How long to cache the data, in seconds
+ * @return New decremented value, false otherwise
+ * @access public
+ */
+	function decrement($key, $offset = 1) {
+		if ($this->settings['compress']) {
+			trigger_error(sprintf(__('Method decrement() not implemented for compressed cache in %s', true), get_class($this)), E_USER_ERROR);
+		}
+		return $this->__Memcache->decrement($key, $offset);
+	}
+
+/**
+ * Delete a key from the cache
+ *
+ * @param string $key Identifier for the data
+ * @return boolean True if the value was succesfully deleted, false if it didn't exist or couldn't be removed
+ * @access public
+ */
+	function delete($key) {
+		return $this->__Memcache->delete($key);
+	}
+
+/**
+ * Delete all keys from the cache
+ *
+ * @return boolean True if the cache was succesfully cleared, false otherwise
+ * @access public
+ */
+	function clear() {
+		return $this->__Memcache->flush();
+	}
+
+/**
+ * Connects to a server in connection pool
+ *
+ * @param string $host host ip address or name
+ * @param integer $port Server port
+ * @return boolean True if memcache server was connected
+ * @access public
+ */
+	function connect($host, $port = 11211) {
+		if ($this->__Memcache->getServerStatus($host, $port) === 0) {
+			if ($this->__Memcache->connect($host, $port)) {
+				return true;
+			}
+			return false;
+		}
+		return true;
+	}
+}

php-practice/web-cake/html/cake/libs/cache/xcache.php

@@ -0,0 +1,183 @@
+<?php
+/**
+ * Xcache storage engine for cache.
+ *
+ * PHP versions 4 and 5
+ *
+ * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
+ * Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
+ *
+ * Licensed under The MIT License
+ * Redistributions of files must retain the above copyright notice.
+ *
+ * @copyright     Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
+ * @link          http://cakephp.org CakePHP(tm) Project
+ * @package       cake
+ * @subpackage    cake.cake.libs.cache
+ * @since         CakePHP(tm) v 1.2.0.4947
+ * @license       MIT License (http://www.opensource.org/licenses/mit-license.php)
+ */
+
+/**
+ * Xcache storage engine for cache
+ *
+ * @link          http://trac.lighttpd.net/xcache/ Xcache
+ * @package       cake
+ * @subpackage    cake.cake.libs.cache
+ */
+class XcacheEngine extends CacheEngine {
+
+/**
+ * Settings
+ *
+ *  - PHP_AUTH_USER = xcache.admin.user, default cake
+ *  - PHP_AUTH_PW = xcache.admin.password, default cake
+ *
+ * @var array
+ * @access public
+ */
+	var $settings = array();
+
+/**
+ * Initialize the Cache Engine
+ *
+ * Called automatically by the cache frontend
+ * To reinitialize the settings call Cache::engine('EngineName', [optional] settings = array());
+ *
+ * @param array $setting array of setting for the engine
+ * @return boolean True if the engine has been successfully initialized, false if not
+ * @access public
+ */
+	function init($settings) {
+		parent::init(array_merge(array(
+			'engine' => 'Xcache', 'prefix' => Inflector::slug(APP_DIR) . '_', 'PHP_AUTH_USER' => 'user', 'PHP_AUTH_PW' => 'password'
+			), $settings)
+		);
+		return function_exists('xcache_info');
+	}
+
+/**
+ * Write data for key into cache
+ *
+ * @param string $key Identifier for the data
+ * @param mixed $value Data to be cached
+ * @param integer $duration How long to cache the data, in seconds
+ * @return boolean True if the data was succesfully cached, false on failure
+ * @access public
+ */
+	function write($key, &$value, $duration) {
+		$expires = time() + $duration;
+		xcache_set($key . '_expires', $expires, $duration);
+		return xcache_set($key, $value, $duration);
+	}
+
+/**
+ * Read a key from the cache
+ *
+ * @param string $key Identifier for the data
+ * @return mixed The cached data, or false if the data doesn't exist, has expired, or if there was an error fetching it
+ * @access public
+ */
+	function read($key) {
+		if (xcache_isset($key)) {
+			$time = time();
+			$cachetime = intval(xcache_get($key . '_expires'));
+			if ($cachetime < $time || ($time + $this->settings['duration']) < $cachetime) {
+				return false;
+			}
+			return xcache_get($key);
+		}
+		return false;
+	}
+
+/**
+ * Increments the value of an integer cached key
+ * If the cache key is not an integer it will be treated as 0
+ *
+ * @param string $key Identifier for the data
+ * @param integer $offset How much to increment
+ * @param integer $duration How long to cache the data, in seconds
+ * @return New incremented value, false otherwise
+ * @access public
+ */
+	function increment($key, $offset = 1) {
+		return xcache_inc($key, $offset);
+	}
+
+/**
+ * Decrements the value of an integer cached key.
+ * If the cache key is not an integer it will be treated as 0
+ *
+ * @param string $key Identifier for the data
+ * @param integer $offset How much to substract
+ * @param integer $duration How long to cache the data, in seconds
+ * @return New decremented value, false otherwise
+ * @access public
+ */
+	function decrement($key, $offset = 1) {
+		return xcache_dec($key, $offset);
+	}
+/**
+ * Delete a key from the cache
+ *
+ * @param string $key Identifier for the data
+ * @return boolean True if the value was succesfully deleted, false if it didn't exist or couldn't be removed
+ * @access public
+ */
+	function delete($key) {
+		return xcache_unset($key);
+	}
+
+/**
+ * Delete all keys from the cache
+ *
+ * @return boolean True if the cache was succesfully cleared, false otherwise
+ * @access public
+ */
+	function clear() {
+		$this->__auth();
+		$max = xcache_count(XC_TYPE_VAR);
+		for ($i = 0; $i < $max; $i++) {
+			xcache_clear_cache(XC_TYPE_VAR, $i);
+		}
+		$this->__auth(true);
+		return true;
+	}
+
+/**
+ * Populates and reverses $_SERVER authentication values
+ * Makes necessary changes (and reverting them back) in $_SERVER
+ *
+ * This has to be done because xcache_clear_cache() needs to pass Basic Http Auth
+ * (see xcache.admin configuration settings)
+ *
+ * @param boolean Revert changes
+ * @access private
+ */
+	function __auth($reverse = false) {
+		static $backup = array();
+		$keys = array('PHP_AUTH_USER' => 'user', 'PHP_AUTH_PW' => 'password');
+		foreach ($keys as $key => $setting) {
+			if ($reverse) {
+				if (isset($backup[$key])) {
+					$_SERVER[$key] = $backup[$key];
+					unset($backup[$key]);
+				} else {
+					unset($_SERVER[$key]);
+				}
+			} else {
+				$value = env($key);
+				if (!empty($value)) {
+					$backup[$key] = $value;
+				}
+				if (!empty($this->settings[$setting])) {
+					$_SERVER[$key] = $this->settings[$setting];
+				} else if (!empty($this->settings[$key])) {
+					$_SERVER[$key] = $this->settings[$key];
+				} else {
+					$_SERVER[$key] = $value;
+				}
+			}
+		}
+	}
+}