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<?php |
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/** |
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* @author Jared King <[email protected]> |
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* |
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* @link http://jaredtking.com |
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* |
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* @copyright 2015 Jared King |
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* @license MIT |
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*/ |
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namespace JAQB; |
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use PDOStatement; |
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use Pimple\Container; |
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use SessionHandlerInterface; |
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class Session implements SessionHandlerInterface |
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{ |
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const TABLENAME = 'Sessions'; |
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/** |
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* @var \Pimple\Container |
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*/ |
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private $app; |
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/** |
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* Starts the session using this handler. |
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* |
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* @param Session $handler |
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* |
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* @return bool |
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*/ |
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public static function registerHandler(Session $handler) |
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{ |
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return session_set_save_handler($handler, true); |
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} |
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/** |
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* Creates a new session handler. |
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* |
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* @param \Pimple\Container $app |
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*/ |
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public function __construct(Container $app) |
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{ |
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$this->app = $app; |
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} |
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/** |
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* Installs schema for handling sessions in a database. |
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* |
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* @return bool success |
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*/ |
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View Code Duplication |
public function install() |
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{ |
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$sql = 'CREATE TABLE IF NOT EXISTS `'.self::TABLENAME.'` (`id` varchar(32) NOT NULL, PRIMARY KEY (`id`), `session_data` longtext NULL, `access` int(10) NULL);'; |
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return $this->app['db'] |
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->raw($sql) |
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->execute() instanceof PDOStatement; |
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} |
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/** |
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* Reads a session. |
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* |
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* @param int $id session ID |
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* |
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* @return string data |
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*/ |
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public function read($id) |
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{ |
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return $this->app['db'] |
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->select('session_data') |
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->from(self::TABLENAME) |
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->where('id', $id) |
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->scalar(); |
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} |
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/** |
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* Writes a session. |
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* |
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* @param int $id session ID |
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* @param string $data session data |
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* |
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* @return bool success |
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*/ |
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public function write($id, $data) |
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{ |
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$this->app['db'] |
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->delete(self::TABLENAME) |
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->where('id', $id) |
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->execute(); |
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return $this->app['db'] |
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->insert([ |
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'id' => $id, |
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'access' => time(), |
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'session_data' => $data, ]) |
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->into(self::TABLENAME) |
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->execute() instanceof PDOStatement; |
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} |
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/** |
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* Destroys a session. |
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* |
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* @param int $id session ID |
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* |
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* @return bool success |
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*/ |
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public function destroy($id) |
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{ |
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return $this->app['db'] |
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->delete(self::TABLENAME) |
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->where('id', $id) |
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->execute() instanceof PDOStatement; |
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} |
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/** |
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* Performs garbage collection on sessions. |
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* |
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* @param int $max maximum number of seconds a session can live |
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* |
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* @return bool success |
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*/ |
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View Code Duplication |
public function gc($max) |
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{ |
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// delete sessions older than max TTL |
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$ttl = time() - $max; |
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return $this->app['db'] |
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->delete(self::TABLENAME) |
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->where('access', $ttl, '<') |
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->execute() instanceof PDOStatement; |
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} |
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/** |
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* These functions are all noops for various reasons... |
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* open() and close() have no practical meaning in terms of database connections. |
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*/ |
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public function open($path, $name) |
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{ |
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return true; |
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} |
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public function close() |
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{ |
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return true; |
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} |
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} |
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jaredtking /
jaqb
