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<?php |
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/** |
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* Simple Machines Forum (SMF) |
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* |
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* @package SMF |
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* @author Simple Machines http://www.simplemachines.org |
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* @copyright 2017 Simple Machines and individual contributors |
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* @license http://www.simplemachines.org/about/smf/license.php BSD |
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* |
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* @version 2.1 Beta 4 |
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*/ |
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if (!defined('SMF')) |
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die('Hacking attempt...'); |
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/** |
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* Our Cache API class |
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* @package cacheAPI |
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*/ |
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class xcache_cache extends cache_api |
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{ |
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/** |
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* {@inheritDoc} |
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*/ |
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public function __construct() |
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{ |
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global $modSettings; |
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parent::__construct(); |
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// Xcache requuires a admin username and password in order to issue a clear. |
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if (!empty($modSettings['xcache_adminuser']) && !empty($modSettings['xcache_adminpass'])) |
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{ |
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ini_set('xcache.admin.user', $modSettings['xcache_adminuser']); |
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ini_set('xcache.admin.pass', md5($modSettings['xcache_adminpass'])); |
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} |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function isSupported($test = false) |
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{ |
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$supported = function_exists('xcache_get') && function_exists('xcache_set') && ini_get('xcache.var_size') > 0; |
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if ($test) |
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return $supported; |
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return parent::isSupported() && $supported; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getData($key, $ttl = null) |
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{ |
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$key = $this->prefix . strtr($key, ':/', '-_'); |
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return xcache_get($key); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function putData($key, $value, $ttl = null) |
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{ |
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$key = $this->prefix . strtr($key, ':/', '-_'); |
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if ($value === null) |
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return xcache_unset($key); |
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else |
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return xcache_set($key, $value, $ttl); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function cleanCache($type = '') |
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{ |
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global $modSettings; |
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// Xcache requuires a admin username and password in order to issue a clear. Ideally this would log an error, but it seems like something that could fill up the error log quickly. |
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if (empty($modSettings['xcache_adminuser']) || empty($modSettings['xcache_adminpass'])) |
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{ |
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// We are going to at least invalidate it. |
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$this->invalidateCache(); |
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return false; |
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} |
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// if passed a type, clear that type out |
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if ($type === '' || $type === 'user') |
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xcache_clear_cache(XC_TYPE_VAR, 0); |
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if ($type === '' || $type === 'data') |
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xcache_clear_cache(XC_TYPE_PHP, 0); |
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$this->invalidateCache(); |
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return true; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function cacheSettings(array &$config_vars) |
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{ |
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global $context, $txt; |
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$config_vars[] = $txt['cache_xcache_settings']; |
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$config_vars[] = array('xcache_adminuser', $txt['cache_xcache_adminuser'], 'db', 'text', 0, 'xcache_adminuser'); |
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// While we could md5 this when saving, this could be tricky to be sure it doesn't get corrupted on additional saves. |
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$config_vars[] = array('xcache_adminpass', $txt['cache_xcache_adminpass'], 'db', 'text', 0); |
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if (!isset($context['settings_post_javascript'])) |
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$context['settings_post_javascript'] = ''; |
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$context['settings_post_javascript'] .= ' |
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$("#cache_accelerator").change(function (e) { |
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var cache_type = e.currentTarget.value; |
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$("#xcache_adminuser").prop("disabled", cache_type != "xcache"); |
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$("#xcache_adminpass").prop("disabled", cache_type != "xcache"); |
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});'; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getVersion() |
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{ |
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return XCACHE_VERSION; |
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} |
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} |
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?> |
Instead of relying on
globalstate, we recommend one of these alternatives:1. Pass all data via parameters
2. Create a class that maintains your state