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- <?php
- namespace Drupal\Core\Session;
- /**
- * Wraps another SessionHandlerInterface to prevent writes when not allowed.
- */
- class WriteSafeSessionHandler implements \SessionHandlerInterface, WriteSafeSessionHandlerInterface {
- /**
- * @var \SessionHandlerInterface
- */
- protected $wrappedSessionHandler;
- /**
- * Whether or not the session is enabled for writing.
- *
- * @var bool
- */
- protected $sessionWritable;
- /**
- * Constructs a new write safe session handler.
- *
- * @param \SessionHandlerInterface $wrapped_session_handler
- * The underlying session handler.
- * @param bool $session_writable
- * Whether or not the session should be initially writable.
- */
- public function __construct(\SessionHandlerInterface $wrapped_session_handler, $session_writable = TRUE) {
- $this->wrappedSessionHandler = $wrapped_session_handler;
- $this->sessionWritable = $session_writable;
- }
- /**
- * {@inheritdoc}
- */
- public function close() {
- return $this->wrappedSessionHandler->close();
- }
- /**
- * {@inheritdoc}
- */
- public function destroy($session_id) {
- return $this->wrappedSessionHandler->destroy($session_id);
- }
- /**
- * {@inheritdoc}
- */
- public function gc($max_lifetime) {
- return $this->wrappedSessionHandler->gc($max_lifetime);
- }
- /**
- * {@inheritdoc}
- */
- public function open($save_path, $session_id) {
- return $this->wrappedSessionHandler->open($save_path, $session_id);
- }
- /**
- * {@inheritdoc}
- */
- public function read($session_id) {
- return $this->wrappedSessionHandler->read($session_id);
- }
- /**
- * {@inheritdoc}
- */
- public function write($session_id, $session_data) {
- if ($this->isSessionWritable()) {
- return $this->wrappedSessionHandler->write($session_id, $session_data);
- }
- else {
- return TRUE;
- }
- }
- /**
- * {@inheritdoc}
- */
- public function setSessionWritable($flag) {
- $this->sessionWritable = (bool) $flag;
- }
- /**
- * {@inheritdoc}
- */
- public function isSessionWritable() {
- return $this->sessionWritable;
- }
- }
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