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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 3 |
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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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* SQLite Cache API class |
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* @package cacheAPI |
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*/ |
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class sqlite_cache extends cache_api |
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{ |
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/** |
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* @var string The path to the current $cachedir directory. |
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*/ |
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private $cachedir = null; |
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private $cacheDB = null; |
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private $cacheTime = null; |
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public function __construct() |
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{ |
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parent::__construct(); |
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// Set our default cachedir. |
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$this->setCachedir(); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function connect() |
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{ |
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$database = $this->cachedir . '/' . 'SQLite3Cache.db3'; |
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$this->cacheDB = new SQLite3($database); |
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$this->cacheDB->busyTimeout(1000); |
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if (filesize($database) == 0) |
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{ |
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$this->cacheDB->exec('CREATE TABLE cache (key text unique, value blob, ttl int);'); |
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$this->cacheDB->exec('CREATE INDEX ttls ON cache(ttl);'); |
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} |
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$this->cacheTime = time(); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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View Code Duplication |
public function isSupported($test = false) |
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{ |
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$supported = class_exists("SQLite3") && is_writable($this->cachedir); |
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if ($test) |
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{ |
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return $supported; |
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} |
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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, $ttl = null) |
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{ |
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$ttl = time() - $ttl; |
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$query = 'SELECT value FROM cache WHERE key = \'' . $this->cacheDB->escapeString($key) . '\' AND ttl >= ' . $ttl . ' LIMIT 1'; |
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$result = $this->cacheDB->query($query); |
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$value = null; |
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while ($res = $result->fetchArray(SQLITE3_ASSOC)) |
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{ |
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$value = $res['value']; |
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} |
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return !empty($value) ? $value : null; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function putData($key, $value, $ttl = null) |
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{ |
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$ttl = $this->cacheTime + $ttl; |
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$query = 'REPLACE INTO cache VALUES (\'' . $this->cacheDB->escapeString($key) . '\', \'' . $this->cacheDB->escapeString($value) . '\', ' . $this->cacheDB->escapeString($ttl) . ');'; |
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$result = $this->cacheDB->exec($query); |
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return $result; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function cleanCache($type = '') |
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{ |
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$query = 'DELETE FROM cache;'; |
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$result = $this->cacheDB->exec($query); |
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return $result; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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View Code Duplication |
public function cacheSettings(array &$config_vars) |
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{ |
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global $context, $txt; |
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$config_vars[] = $txt['cache_sqlite_settings']; |
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$config_vars[] = array('cachedir_sqlite', $txt['cachedir_sqlite'], 'file', 'text', 36, 'cache_sqlite_cachedir'); |
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if (!isset($context['settings_post_javascript'])) |
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{ |
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$context['settings_post_javascript'] = ''; |
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} |
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$context['settings_post_javascript'] .= ' |
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$("#cache_accelerator").change(function (e) { |
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var cache_type = e.currentTarget.value; |
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$("#cachedir_sqlite").prop("disabled", cache_type != "sqlite"); |
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});'; |
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} |
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/** |
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* Sets the $cachedir or uses the SMF default $cachedir.. |
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* |
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* @access public |
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* |
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* @param string $dir A valid path |
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* |
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* @return boolean If this was successful or not. |
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*/ |
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View Code Duplication |
public function setCachedir($dir = null) |
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{ |
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global $cachedir_sqlite; |
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// If its invalid, use SMF's. |
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if (is_null($dir) || !is_writable($dir)) |
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{ |
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$this->cachedir = $cachedir_sqlite; |
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} |
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else |
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{ |
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$this->cachedir = $dir; |
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} |
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} |
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} |
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SimpleMachines /
SMF2.1
Loading history...
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.