mirror of
https://github.com/torrentpier/torrentpier-lts.git
synced 2025-02-28 15:10:54 +03:00
525 lines
15 KiB
PHP
525 lines
15 KiB
PHP
<?php
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/**
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* Zend Framework (http://framework.zend.com/)
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*
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* @link http://github.com/zendframework/zf2 for the canonical source repository
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* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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namespace Zend\Cache\Storage\Adapter;
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use stdClass;
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use Traversable;
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use Zend\Cache\Exception;
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use Zend\Cache\Storage\AvailableSpaceCapableInterface;
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use Zend\Cache\Storage\Capabilities;
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use Zend\Cache\Storage\ClearByNamespaceInterface;
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use Zend\Cache\Storage\ClearByPrefixInterface;
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use Zend\Cache\Storage\FlushableInterface;
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use Zend\Cache\Storage\IterableInterface;
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use Zend\Cache\Storage\TotalSpaceCapableInterface;
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class XCache extends AbstractAdapter implements
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AvailableSpaceCapableInterface,
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ClearByNamespaceInterface,
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ClearByPrefixInterface,
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FlushableInterface,
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IterableInterface,
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TotalSpaceCapableInterface
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{
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/**
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* Backup HTTP authentication properties of $_SERVER array
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*
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* @var array
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*/
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protected $backupAuth = array();
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/**
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* Total space in bytes
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*
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* @var int|float
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*/
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protected $totalSpace;
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/**
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* Constructor
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*
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* @param null|array|Traversable|XCacheOptions $options
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* @throws Exception\ExceptionInterface
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*/
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public function __construct($options = null)
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{
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if (!extension_loaded('xcache')) {
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throw new Exception\ExtensionNotLoadedException('Missing ext/xcache');
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}
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if (PHP_SAPI == 'cli') {
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throw new Exception\ExtensionNotLoadedException(
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"ext/xcache isn't available on SAPI 'cli'"
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);
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}
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if (ini_get('xcache.var_size') <= 0) {
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throw new Exception\ExtensionNotLoadedException(
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"ext/xcache is disabled - see 'xcache.var_size'"
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);
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}
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parent::__construct($options);
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}
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/* options */
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/**
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* Set options.
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*
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* @param array|Traversable|XCacheOptions $options
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* @return XCache
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* @see getOptions()
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*/
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public function setOptions($options)
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{
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if (!$options instanceof XCacheOptions) {
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$options = new XCacheOptions($options);
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}
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return parent::setOptions($options);
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}
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/**
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* Get options.
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*
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* @return XCacheOptions
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* @see setOptions()
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*/
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public function getOptions()
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{
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if (!$this->options) {
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$this->setOptions(new XCacheOptions());
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}
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return $this->options;
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}
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/* TotalSpaceCapableInterface */
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/**
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* Get total space in bytes
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*
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* @return int|float
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*/
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public function getTotalSpace()
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{
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if ($this->totalSpace === null) {
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$this->totalSpace = 0;
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$this->initAdminAuth();
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$cnt = xcache_count(XC_TYPE_VAR);
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for ($i=0; $i < $cnt; $i++) {
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$info = xcache_info(XC_TYPE_VAR, $i);
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$this->totalSpace+= $info['size'];
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}
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$this->resetAdminAuth();
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}
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return $this->totalSpace;
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}
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/* AvailableSpaceCapableInterface */
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/**
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* Get available space in bytes
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*
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* @return int|float
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*/
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public function getAvailableSpace()
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{
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$availableSpace = 0;
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$this->initAdminAuth();
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$cnt = xcache_count(XC_TYPE_VAR);
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for ($i = 0; $i < $cnt; $i++) {
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$info = xcache_info(XC_TYPE_VAR, $i);
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$availableSpace+= $info['avail'];
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}
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$this->resetAdminAuth();
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return $availableSpace;
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}
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/* ClearByNamespaceInterface */
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/**
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* Remove items by given namespace
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*
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* @param string $namespace
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* @return bool
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*/
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public function clearByNamespace($namespace)
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{
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$namespace = (string) $namespace;
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if ($namespace === '') {
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throw new Exception\InvalidArgumentException('No namespace given');
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}
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$options = $this->getOptions();
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$prefix = $namespace . $options->getNamespaceSeparator();
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xcache_unset_by_prefix($prefix);
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return true;
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}
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/* ClearByPrefixInterface */
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/**
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* Remove items matching given prefix
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*
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* @param string $prefix
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* @return bool
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*/
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public function clearByPrefix($prefix)
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{
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$prefix = (string) $prefix;
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if ($prefix === '') {
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throw new Exception\InvalidArgumentException('No prefix given');
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}
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$options = $this->getOptions();
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$namespace = $options->getNamespace();
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$prefix = ($namespace === '') ? '' : $namespace . $options->getNamespaceSeparator() . $prefix;
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xcache_unset_by_prefix($prefix);
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return true;
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}
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/* FlushableInterface */
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/**
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* Flush the whole storage
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*
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* @return bool
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*/
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public function flush()
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{
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$this->initAdminAuth();
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$cnt = xcache_count(XC_TYPE_VAR);
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for ($i = 0; $i < $cnt; $i++) {
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xcache_clear_cache(XC_TYPE_VAR, $i);
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}
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$this->resetAdminAuth();
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return true;
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}
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/* IterableInterface */
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/**
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* Get the storage iterator
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*
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* @return KeyListIterator
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*/
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public function getIterator()
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{
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$options = $this->getOptions();
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$namespace = $options->getNamespace();
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$keys = array();
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$this->initAdminAuth();
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if ($namespace === '') {
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$cnt = xcache_count(XC_TYPE_VAR);
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for ($i=0; $i < $cnt; $i++) {
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$list = xcache_list(XC_TYPE_VAR, $i);
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foreach ($list['cache_list'] as & $item) {
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$keys[] = $item['name'];
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}
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}
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} else {
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$prefix = $namespace . $options->getNamespaceSeparator();
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$prefixL = strlen($prefix);
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$cnt = xcache_count(XC_TYPE_VAR);
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for ($i=0; $i < $cnt; $i++) {
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$list = xcache_list(XC_TYPE_VAR, $i);
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foreach ($list['cache_list'] as & $item) {
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$keys[] = substr($item['name'], $prefixL);
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}
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}
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}
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$this->resetAdminAuth();
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return new KeyListIterator($this, $keys);
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}
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/* reading */
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/**
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* Internal method to get an item.
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*
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* @param string $normalizedKey
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* @param bool $success
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* @param mixed $casToken
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* @return mixed Data on success, null on failure
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* @throws Exception\ExceptionInterface
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*/
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protected function internalGetItem(& $normalizedKey, & $success = null, & $casToken = null)
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{
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$options = $this->getOptions();
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$namespace = $options->getNamespace();
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$prefix = ($namespace === '') ? '' : $namespace . $options->getNamespaceSeparator();
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$internalKey = $prefix . $normalizedKey;
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$result = xcache_get($internalKey);
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$success = ($result !== null);
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if ($success) {
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$casToken = $result;
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}
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return $result;
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}
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/**
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* Internal method to test if an item exists.
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*
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* @param string $normalizedKey
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* @return bool
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* @throws Exception\ExceptionInterface
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*/
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protected function internalHasItem(& $normalizedKey)
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{
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$options = $this->getOptions();
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$namespace = $options->getNamespace();
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$prefix = ($namespace === '') ? '' : $namespace . $options->getNamespaceSeparator();
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return xcache_isset($prefix . $normalizedKey);
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}
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/**
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* Get metadata of an item.
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*
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* @param string $normalizedKey
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* @return array|bool Metadata on success, false on failure
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* @throws Exception\ExceptionInterface
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*/
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protected function internalGetMetadata(& $normalizedKey)
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{
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$options = $this->getOptions();
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$namespace = $options->getNamespace();
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$prefix = ($namespace === '') ? '' : $namespace . $options->getNamespaceSeparator();
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$internalKey = $prefix . $normalizedKey;
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if (xcache_isset($internalKey)) {
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$this->initAdminAuth();
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$cnt = xcache_count(XC_TYPE_VAR);
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for ($i=0; $i < $cnt; $i++) {
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$list = xcache_list(XC_TYPE_VAR, $i);
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foreach ($list['cache_list'] as & $metadata) {
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if ($metadata['name'] === $internalKey) {
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$this->normalizeMetadata($metadata);
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return $metadata;
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}
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}
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}
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$this->resetAdminAuth();
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}
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return false;
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}
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/* writing */
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/**
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* Internal method to store an item.
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*
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* @param string $normalizedKey
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* @param mixed $value
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* @return bool
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* @throws Exception\ExceptionInterface
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*/
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protected function internalSetItem(& $normalizedKey, & $value)
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{
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$options = $this->getOptions();
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$namespace = $options->getNamespace();
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$prefix = ($options === '') ? '' : $namespace . $options->getNamespaceSeparator();
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$internalKey = $prefix . $normalizedKey;
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$ttl = $options->getTtl();
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if (!xcache_set($internalKey, $value, $ttl)) {
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$type = is_object($value) ? get_class($value) : gettype($value);
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throw new Exception\RuntimeException(
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"xcache_set('{$internalKey}', <{$type}>, {$ttl}) failed"
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);
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}
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return true;
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}
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/**
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* Internal method to remove an item.
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*
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* @param string $normalizedKey
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* @return bool
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* @throws Exception\ExceptionInterface
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*/
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protected function internalRemoveItem(& $normalizedKey)
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{
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$options = $this->getOptions();
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$namespace = $options->getNamespace();
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$prefix = ($namespace === '') ? '' : $namespace . $options->getNamespaceSeparator();
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$internalKey = $prefix . $normalizedKey;
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return xcache_unset($internalKey);
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}
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/**
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* Internal method to increment an item.
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*
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* @param string $normalizedKey
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* @param int $value
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* @return int|bool The new value on success, false on failure
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* @throws Exception\ExceptionInterface
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*/
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protected function internalIncrementItem(& $normalizedKey, & $value)
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{
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$options = $this->getOptions();
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$namespace = $options->getNamespace();
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$prefix = ($namespace === '') ? '' : $namespace . $options->getNamespaceSeparator();
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$internalKey = $prefix . $normalizedKey;
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$ttl = $options->getTtl();
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$value = (int) $value;
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return xcache_inc($internalKey, $value, $ttl);
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}
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/**
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* Internal method to decrement an item.
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*
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* @param string $normalizedKey
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* @param int $value
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* @return int|bool The new value on success, false on failure
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* @throws Exception\ExceptionInterface
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*/
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protected function internalDecrementItem(& $normalizedKey, & $value)
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{
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$options = $this->getOptions();
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$namespace = $options->getNamespace();
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$prefix = ($namespace === '') ? '' : $namespace . $options->getNamespaceSeparator();
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$internalKey = $prefix . $normalizedKey;
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$ttl = $options->getTtl();
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$value = (int) $value;
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return xcache_dec($internalKey, $value, $ttl);
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}
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/* status */
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/**
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* Internal method to get capabilities of this adapter
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*
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* @return Capabilities
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*/
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protected function internalGetCapabilities()
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{
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if ($this->capabilities === null) {
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$marker = new stdClass();
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$capabilities = new Capabilities(
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$this,
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$marker,
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array(
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'supportedDatatypes' => array(
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'NULL' => false,
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'boolean' => true,
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'integer' => true,
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'double' => true,
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'string' => true,
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'array' => true,
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'object' => 'object',
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'resource' => false,
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),
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'supportedMetadata' => array(
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'internal_key',
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'size', 'refcount', 'hits',
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'ctime', 'atime', 'hvalue',
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),
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'minTtl' => 1,
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'maxTtl' => (int)ini_get('xcache.var_maxttl'),
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'staticTtl' => true,
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'ttlPrecision' => 1,
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'useRequestTime' => true,
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'expiredRead' => false,
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'maxKeyLength' => 5182,
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'namespaceIsPrefix' => true,
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'namespaceSeparator' => $this->getOptions()->getNamespaceSeparator(),
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)
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);
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// update namespace separator on change option
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$this->getEventManager()->attach('option', function ($event) use ($capabilities, $marker) {
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$params = $event->getParams();
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if (isset($params['namespace_separator'])) {
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$capabilities->setNamespaceSeparator($marker, $params['namespace_separator']);
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}
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});
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$this->capabilities = $capabilities;
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$this->capabilityMarker = $marker;
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}
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return $this->capabilities;
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}
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/* internal */
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/**
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* Init authentication before calling admin functions
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*
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* @return void
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*/
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protected function initAdminAuth()
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{
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$options = $this->getOptions();
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if ($options->getAdminAuth()) {
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$adminUser = $options->getAdminUser();
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$adminPass = $options->getAdminPass();
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// backup HTTP authentication properties
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if (isset($_SERVER['PHP_AUTH_USER'])) {
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$this->backupAuth['PHP_AUTH_USER'] = $_SERVER['PHP_AUTH_USER'];
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}
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if (isset($_SERVER['PHP_AUTH_PW'])) {
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$this->backupAuth['PHP_AUTH_PW'] = $_SERVER['PHP_AUTH_PW'];
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}
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// set authentication
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$_SERVER['PHP_AUTH_USER'] = $adminUser;
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$_SERVER['PHP_AUTH_PW'] = $adminPass;
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}
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}
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/**
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* Reset authentication after calling admin functions
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*
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* @return void
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*/
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protected function resetAdminAuth()
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{
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unset($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']);
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$_SERVER = $this->backupAuth + $_SERVER;
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$this->backupAuth = array();
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}
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/**
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* Normalize metadata to work with XCache
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*
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* @param array $metadata
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*/
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protected function normalizeMetadata(array & $metadata)
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{
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$metadata['internal_key'] = &$metadata['name'];
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unset($metadata['name']);
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}
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}
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