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<?php
/**
* Session storage in the datastore.
*
* @package simpleSAMLphp
*/
class SimpleSAML_SessionHandlerStore extends SimpleSAML_SessionHandlerCookie {
/**
* The datastore we save the session to.
*/
private $store;
/**
* Initialize the session handlerstore.
*/
protected function __construct(SimpleSAML_Store $store) {
parent::__construct();
$this->store = $store;
}
/**
* Load the session from the datastore.
*
* @param string|NULL $sessionId The ID of the session we should load, or NULL to use the default.
* @return SimpleSAML_Session|NULL The session object, or NULL if it doesn't exist.
*/
public function loadSession($sessionId = NULL) {
assert('is_string($sessionId) || is_null($sessionId)');
if ($sessionId === NULL) {
$sessionId = $this->getCookieSessionId();
}
$session = $this->store->get('session', $sessionId);
if ($session !== NULL) {
assert('$session instanceof SimpleSAML_Session');
return $session;
}
if (!($this->store instanceof SimpleSAML_Store_Memcache)) {
return NULL;
}
/* For backwards compatibility, check the MemcacheStore object. */
$store = SimpleSAML_MemcacheStore::find($sessionId);
if ($store === NULL) {
return NULL;
}
$session = $store->get('SimpleSAMLphp_SESSION');
if ($session === NULL) {
return NULL;
}
assert('is_string($session)');
$session = unserialize($session);
assert('$session instanceof SimpleSAML_Session');
return $session;
}
/**
* Save the current session to the datastore.
*
* @param SimpleSAML_Session $session The session object we should save.
*/
public function saveSession(SimpleSAML_Session $session) {
$sessionId = $session->getSessionId();
$config = SimpleSAML_Configuration::getInstance();
$sessionDuration = $config->getInteger('session.duration', 8*60*60);
$expire = time() + $sessionDuration;
$this->store->set('session', $sessionId, $session, $expire);
}
}
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