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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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125
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?> |
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albertlast /
SMF2.1
Using a closing tag in PHP files that only contain PHP code is not recommended as you might accidentally add whitespace after the closing tag which would then be output by PHP. This can cause severe problems, for example headers cannot be sent anymore.
A simple precaution is to leave off the closing tag as it is not required, and it also has no negative effects whatsoever.