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<?php |
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/** |
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* Linna Framework. |
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* |
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* @author Sebastian Rapetti <[email protected]> |
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* @copyright (c) 2018, Sebastian Rapetti |
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* @license http://opensource.org/licenses/MIT MIT License |
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*/ |
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declare(strict_types=1); |
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namespace Linna\Session; |
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use Linna\Storage\ExtendedPDO; |
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use SessionHandlerInterface; |
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/** |
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* Store sessions in Database. |
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* |
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* Check below link for PHP session Handler |
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* http://php.net/manual/en/class.sessionhandler.php |
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* |
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* Before use create table session on DB. |
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* |
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* CREATE TABLE session ( |
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* session_id char(255) NOT NULL, |
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* session_data varchar(4096) NOT NULL, |
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* last_update timestamp NOT NULL, |
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* PRIMARY KEY (session_id) |
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* ); |
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*/ |
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class PgsqlPdoSessionHandler implements SessionHandlerInterface |
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{ |
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/** |
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* @var ExtendedPDO Database Connection |
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*/ |
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private $pdo; |
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/** |
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* Constructor. |
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* |
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* @param ExtendedPDO $pdo |
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*/ |
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public function __construct(ExtendedPDO $pdo) |
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{ |
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$this->pdo = $pdo; |
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} |
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/** |
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* Open session storage. |
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* |
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* http://php.net/manual/en/sessionhandler.open.php. |
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* |
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* @param string $save_path |
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* @param string $session_name |
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* |
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* @return bool |
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*/ |
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public function open($save_path, $session_name) |
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{ |
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unset($save_path, $session_name); |
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return true; |
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} |
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/** |
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* Delete old sessions from storage. |
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* |
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* http://php.net/manual/en/sessionhandler.gc.php. |
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* |
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* @param int $maxlifetime |
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* |
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* @return bool |
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*/ |
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public function gc($maxlifetime) |
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{ |
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$timestamp = \date(DATE_ATOM, \time() - $maxlifetime); |
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$this->pdo->queryWithParam( |
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'DELETE FROM public.session WHERE last_update < :maxlifetime', |
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[[':maxlifetime', $timestamp, \PDO::PARAM_STR]] |
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); |
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return $this->pdo->getLastOperationStatus(); |
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} |
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/** |
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* Read session data from storage. |
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* |
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* http://php.net/manual/en/sessionhandler.read.php. |
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* |
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* @param string $session_id |
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* |
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* @return string |
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*/ |
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public function read($session_id) |
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{ |
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//string casting is a fix for PHP 7 |
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//when strict type are enable |
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return (string) $this->pdo->queryWithParam( |
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'SELECT session_data FROM public.session WHERE session_id = :session_id', |
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[[':session_id', $session_id, \PDO::PARAM_STR]] |
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)->fetchColumn(); |
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} |
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/** |
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* Write session data to storage. |
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* |
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* http://php.net/manual/en/sessionhandler.write.php. |
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* |
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* @param string $session_id |
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* @param string $session_data |
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* |
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* @return bool |
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*/ |
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public function write($session_id, $session_data) |
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{ |
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$this->pdo->queryWithParam( |
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'INSERT INTO public.session(session_id, session_data) VALUES (:session_id, :session_data) ON CONFLICT (session_id) DO UPDATE SET session_data = :session_data, last_update = NOW()', |
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[ |
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[':session_id', $session_id, \PDO::PARAM_STR], |
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[':session_data', $session_data, \PDO::PARAM_STR] |
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] |
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); |
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return $this->pdo->getLastOperationStatus(); |
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} |
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/** |
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* Close session. |
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* |
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* http://php.net/manual/en/sessionhandler.close.php. |
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* |
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* @return bool |
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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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* Destroy session data. |
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* |
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* http://php.net/manual/en/sessionhandler.destroy.php. |
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* |
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* @param string $session_id |
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* |
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* @return bool |
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*/ |
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public function destroy($session_id) |
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{ |
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$this->pdo->queryWithParam( |
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'DELETE FROM public.session WHERE session_id = :session_id', |
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[[':session_id', $session_id, \PDO::PARAM_STR]] |
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); |
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return $this->pdo->getLastOperationStatus(); |
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} |
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} |
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linna /
framework
