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<?php
/**
* This file is part of the Nette Framework (https://nette.org)
* Copyright (c) 2004 David Grudl (https://davidgrudl.com)
*/
namespace Nette\Http;
use Nette;
use Nette\Security\IIdentity;
/**
* Session storage for user object.
*/
class UserStorage implements Nette\Security\IUserStorage
{
use Nette\SmartObject;
/** @var string */
private $namespace = '';
/** @var Session */
private $sessionHandler;
/** @var SessionSection */
private $sessionSection;
public function __construct(Session $sessionHandler)
{
$this->sessionHandler = $sessionHandler;
}
/**
* Sets the authenticated status of this user.
* @param bool
* @return self
*/
public function setAuthenticated($state)
{
$section = $this->getSessionSection(TRUE);
$section->authenticated = (bool) $state;
// Session Fixation defence
$this->sessionHandler->regenerateId();
if ($state) {
$section->reason = NULL;
$section->authTime = time(); // informative value
} else {
$section->reason = self::MANUAL;
$section->authTime = NULL;
}
return $this;
}
/**
* Is this user authenticated?
* @return bool
*/
public function isAuthenticated()
{
$session = $this->getSessionSection(FALSE);
return $session && $session->authenticated;
}
/**
* Sets the user identity.
* @return self
*/
public function setIdentity(IIdentity $identity = NULL)
{
$this->getSessionSection(TRUE)->identity = $identity;
return $this;
}
/**
* Returns current user identity, if any.
* @return Nette\Security\IIdentity|NULL
*/
public function getIdentity()
{
$session = $this->getSessionSection(FALSE);
return $session ? $session->identity : NULL;
}
/**
* Changes namespace; allows more users to share a session.
* @param string
* @return self
*/
public function setNamespace($namespace)
{
if ($this->namespace !== $namespace) {
$this->namespace = (string) $namespace;
$this->sessionSection = NULL;
}
return $this;
}
/**
* Returns current namespace.
* @return string
*/
public function getNamespace()
{
return $this->namespace;
}
/**
* Enables log out after inactivity.
* @param string|int|\DateTimeInterface Number of seconds or timestamp
* @param int Log out when the browser is closed | Clear the identity from persistent storage?
* @return self
*/
public function setExpiration($time, $flags = 0)
{
$section = $this->getSessionSection(TRUE);
if ($time) {
$time = Nette\Utils\DateTime::from($time)->format('U');
$section->expireTime = $time;
$section->expireDelta = $time - time();
} else {
unset($section->expireTime, $section->expireDelta);
}
$section->expireIdentity = (bool) ($flags & self::CLEAR_IDENTITY);
$section->expireBrowser = (bool) ($flags & self::BROWSER_CLOSED);
$section->browserCheck = TRUE;
$section->setExpiration(0, 'browserCheck');
$section->setExpiration($time, 'foo'); // time check
return $this;
}
/**
* Why was user logged out?
* @return int|NULL
*/
public function getLogoutReason()
{
$session = $this->getSessionSection(FALSE);
return $session ? $session->reason : NULL;
}
/**
* Returns and initializes $this->sessionSection.
* @return SessionSection
*/
protected function getSessionSection($need)
{
if ($this->sessionSection !== NULL) {
return $this->sessionSection;
}
if (!$need && !$this->sessionHandler->exists()) {
return NULL;
}
$this->sessionSection = $section = $this->sessionHandler->getSection('Nette.Http.UserStorage/' . $this->namespace);
if (!$section->identity instanceof IIdentity || !is_bool($section->authenticated)) {
$section->remove();
}
if ($section->authenticated && $section->expireBrowser && !$section->browserCheck) { // check if browser was closed?
$section->reason = self::BROWSER_CLOSED;
$section->authenticated = FALSE;
if ($section->expireIdentity) {
unset($section->identity);
}
}
if ($section->authenticated && $section->expireDelta > 0) { // check time expiration
if ($section->expireTime < time()) {
$section->reason = self::INACTIVITY;
$section->authenticated = FALSE;
if ($section->expireIdentity) {
unset($section->identity);
}
}
$section->expireTime = time() + $section->expireDelta; // sliding expiration
}
if (!$section->authenticated) {
unset($section->expireTime, $section->expireDelta, $section->expireIdentity,
$section->expireBrowser, $section->browserCheck, $section->authTime);
}
return $this->sessionSection;
}
}
|
