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Direktori : /opt/alt/php55/usr/share/pear/Symfony/Bridge/Doctrine/HttpFoundation/ |
Current File : //opt/alt/php55/usr/share/pear/Symfony/Bridge/Doctrine/HttpFoundation/DbalSessionHandler.php |
<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Bridge\Doctrine\HttpFoundation; use Doctrine\DBAL\Platforms\MySqlPlatform; use Doctrine\DBAL\Driver\Connection; /** * DBAL based session storage. * * @author Fabien Potencier <fabien@symfony.com> * @author Johannes M. Schmitt <schmittjoh@gmail.com> */ class DbalSessionHandler implements \SessionHandlerInterface { /** * @var Connection */ private $con; /** * @var string */ private $tableName; /** * Constructor. * * @param Connection $con An instance of Connection. * @param string $tableName Table name. */ public function __construct(Connection $con, $tableName = 'sessions') { $this->con = $con; $this->tableName = $tableName; } /** * {@inheritdoc} */ public function open($path = null, $name = null) { return true; } /** * {@inheritdoc} */ public function close() { // do nothing return true; } /** * {@inheritdoc} */ public function destroy($id) { try { $this->con->executeQuery("DELETE FROM {$this->tableName} WHERE sess_id = :id", array( 'id' => $id, )); } catch (\PDOException $e) { throw new \RuntimeException(sprintf('PDOException was thrown when trying to manipulate session data: %s', $e->getMessage()), 0, $e); } return true; } /** * {@inheritdoc} */ public function gc($lifetime) { try { $this->con->executeQuery("DELETE FROM {$this->tableName} WHERE sess_time < :time", array( 'time' => time() - $lifetime, )); } catch (\PDOException $e) { throw new \RuntimeException(sprintf('PDOException was thrown when trying to manipulate session data: %s', $e->getMessage()), 0, $e); } return true; } /** * {@inheritdoc} */ public function read($id) { try { $data = $this->con->executeQuery("SELECT sess_data FROM {$this->tableName} WHERE sess_id = :id", array( 'id' => $id, ))->fetchColumn(); if (false !== $data) { return base64_decode($data); } // session does not exist, create it $this->createNewSession($id); return ''; } catch (\PDOException $e) { throw new \RuntimeException(sprintf('PDOException was thrown when trying to read the session data: %s', $e->getMessage()), 0, $e); } } /** * {@inheritdoc} */ public function write($id, $data) { $platform = $this->con->getDatabasePlatform(); // this should maybe be abstracted in Doctrine DBAL if ($platform instanceof MySqlPlatform) { $sql = "INSERT INTO {$this->tableName} (sess_id, sess_data, sess_time) VALUES (%1\$s, %2\$s, %3\$d) " ."ON DUPLICATE KEY UPDATE sess_data = VALUES(sess_data), sess_time = CASE WHEN sess_time = %3\$d THEN (VALUES(sess_time) + 1) ELSE VALUES(sess_time) END"; } else { $sql = "UPDATE {$this->tableName} SET sess_data = %2\$s, sess_time = %3\$d WHERE sess_id = %1\$s"; } try { $rowCount = $this->con->exec(sprintf( $sql, $this->con->quote($id), //session data can contain non binary safe characters so we need to encode it $this->con->quote(base64_encode($data)), time() )); if (!$rowCount) { // No session exists in the database to update. This happens when we have called // session_regenerate_id() $this->createNewSession($id, $data); } } catch (\PDOException $e) { throw new \RuntimeException(sprintf('PDOException was thrown when trying to write the session data: %s', $e->getMessage()), 0, $e); } return true; } /** * Creates a new session with the given $id and $data * * @param string $id * @param string $data * * @return Boolean */ private function createNewSession($id, $data = '') { $this->con->exec(sprintf("INSERT INTO {$this->tableName} (sess_id, sess_data, sess_time) VALUES (%s, %s, %d)", $this->con->quote($id), //session data can contain non binary safe characters so we need to encode it $this->con->quote(base64_encode($data)), time() )); return true; } }