You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
507 lines
16 KiB
507 lines
16 KiB
2 months ago
|
<?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\Component\HttpFoundation\Session\Storage;
|
||
|
|
|
||
|
|
use Symfony\Component\HttpFoundation\Session\SessionBagInterface;
|
||
|
|
use Symfony\Component\HttpFoundation\Session\SessionUtils;
|
||
|
|
use Symfony\Component\HttpFoundation\Session\Storage\Handler\StrictSessionHandler;
|
||
|
|
use Symfony\Component\HttpFoundation\Session\Storage\Proxy\AbstractProxy;
|
||
|
|
use Symfony\Component\HttpFoundation\Session\Storage\Proxy\SessionHandlerProxy;
|
||
|
|
|
||
|
|
// Help opcache.preload discover always-needed symbols
|
||
|
|
class_exists(MetadataBag::class);
|
||
|
|
class_exists(StrictSessionHandler::class);
|
||
|
|
class_exists(SessionHandlerProxy::class);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* This provides a base class for session attribute storage.
|
||
|
|
*
|
||
|
|
* @author Drak <drak@zikula.org>
|
||
|
|
*/
|
||
|
|
class NativeSessionStorage implements SessionStorageInterface
|
||
|
|
{
|
||
|
|
/**
|
||
|
|
* @var SessionBagInterface[]
|
||
|
|
*/
|
||
|
|
protected $bags = [];
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @var bool
|
||
|
|
*/
|
||
|
|
protected $started = false;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @var bool
|
||
|
|
*/
|
||
|
|
protected $closed = false;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @var AbstractProxy|\SessionHandlerInterface
|
||
|
|
*/
|
||
|
|
protected $saveHandler;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @var MetadataBag
|
||
|
|
*/
|
||
|
|
protected $metadataBag;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @var string|null
|
||
|
|
*/
|
||
|
|
private $emulateSameSite;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Depending on how you want the storage driver to behave you probably
|
||
|
|
* want to override this constructor entirely.
|
||
|
|
*
|
||
|
|
* List of options for $options array with their defaults.
|
||
|
|
*
|
||
|
|
* @see https://php.net/session.configuration for options
|
||
|
|
* but we omit 'session.' from the beginning of the keys for convenience.
|
||
|
|
*
|
||
|
|
* ("auto_start", is not supported as it tells PHP to start a session before
|
||
|
|
* PHP starts to execute user-land code. Setting during runtime has no effect).
|
||
|
|
*
|
||
|
|
* cache_limiter, "" (use "0" to prevent headers from being sent entirely).
|
||
|
|
* cache_expire, "0"
|
||
|
|
* cookie_domain, ""
|
||
|
|
* cookie_httponly, ""
|
||
|
|
* cookie_lifetime, "0"
|
||
|
|
* cookie_path, "/"
|
||
|
|
* cookie_secure, ""
|
||
|
|
* cookie_samesite, null
|
||
|
|
* gc_divisor, "100"
|
||
|
|
* gc_maxlifetime, "1440"
|
||
|
|
* gc_probability, "1"
|
||
|
|
* lazy_write, "1"
|
||
|
|
* name, "PHPSESSID"
|
||
|
|
* referer_check, ""
|
||
|
|
* serialize_handler, "php"
|
||
|
|
* use_strict_mode, "1"
|
||
|
|
* use_cookies, "1"
|
||
|
|
* use_only_cookies, "1"
|
||
|
|
* use_trans_sid, "0"
|
||
|
|
* sid_length, "32"
|
||
|
|
* sid_bits_per_character, "5"
|
||
|
|
* trans_sid_hosts, $_SERVER['HTTP_HOST']
|
||
|
|
* trans_sid_tags, "a=href,area=href,frame=src,form="
|
||
|
|
*
|
||
|
|
* @param AbstractProxy|\SessionHandlerInterface|null $handler
|
||
|
|
*/
|
||
|
|
public function __construct(array $options = [], $handler = null, MetadataBag $metaBag = null)
|
||
|
|
{
|
||
|
|
if (!\extension_loaded('session')) {
|
||
|
|
throw new \LogicException('PHP extension "session" is required.');
|
||
|
|
}
|
||
|
|
|
||
|
|
$options += [
|
||
|
|
'cache_limiter' => '',
|
||
|
|
'cache_expire' => 0,
|
||
|
|
'use_cookies' => 1,
|
||
|
|
'lazy_write' => 1,
|
||
|
|
'use_strict_mode' => 1,
|
||
|
|
];
|
||
|
|
|
||
|
|
session_register_shutdown();
|
||
|
|
|
||
|
|
$this->setMetadataBag($metaBag);
|
||
|
|
$this->setOptions($options);
|
||
|
|
$this->setSaveHandler($handler);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gets the save handler instance.
|
||
|
|
*
|
||
|
|
* @return AbstractProxy|\SessionHandlerInterface
|
||
|
|
*/
|
||
|
|
public function getSaveHandler()
|
||
|
|
{
|
||
|
|
return $this->saveHandler;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* {@inheritdoc}
|
||
|
|
*/
|
||
|
|
public function start()
|
||
|
|
{
|
||
|
|
if ($this->started) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (\PHP_SESSION_ACTIVE === session_status()) {
|
||
|
|
throw new \RuntimeException('Failed to start the session: already started by PHP.');
|
||
|
|
}
|
||
|
|
|
||
|
|
if (filter_var(\ini_get('session.use_cookies'), \FILTER_VALIDATE_BOOLEAN) && headers_sent($file, $line)) {
|
||
|
|
throw new \RuntimeException(sprintf('Failed to start the session because headers have already been sent by "%s" at line %d.', $file, $line));
|
||
|
|
}
|
||
|
|
|
||
|
|
$sessionId = $_COOKIE[session_name()] ?? null;
|
||
|
|
/*
|
||
|
|
* Explanation of the session ID regular expression: `/^[a-zA-Z0-9,-]{22,250}$/`.
|
||
|
|
*
|
||
|
|
* ---------- Part 1
|
||
|
|
*
|
||
|
|
* The part `[a-zA-Z0-9,-]` is related to the PHP ini directive `session.sid_bits_per_character` defined as 6.
|
||
|
|
* See https://www.php.net/manual/en/session.configuration.php#ini.session.sid-bits-per-character.
|
||
|
|
* Allowed values are integers such as:
|
||
|
|
* - 4 for range `a-f0-9`
|
||
|
|
* - 5 for range `a-v0-9`
|
||
|
|
* - 6 for range `a-zA-Z0-9,-`
|
||
|
|
*
|
||
|
|
* ---------- Part 2
|
||
|
|
*
|
||
|
|
* The part `{22,250}` is related to the PHP ini directive `session.sid_length`.
|
||
|
|
* See https://www.php.net/manual/en/session.configuration.php#ini.session.sid-length.
|
||
|
|
* Allowed values are integers between 22 and 256, but we use 250 for the max.
|
||
|
|
*
|
||
|
|
* Where does the 250 come from?
|
||
|
|
* - The length of Windows and Linux filenames is limited to 255 bytes. Then the max must not exceed 255.
|
||
|
|
* - The session filename prefix is `sess_`, a 5 bytes string. Then the max must not exceed 255 - 5 = 250.
|
||
|
|
*
|
||
|
|
* ---------- Conclusion
|
||
|
|
*
|
||
|
|
* The parts 1 and 2 prevent the warning below:
|
||
|
|
* `PHP Warning: SessionHandler::read(): Session ID is too long or contains illegal characters. Only the A-Z, a-z, 0-9, "-", and "," characters are allowed.`
|
||
|
|
*
|
||
|
|
* The part 2 prevents the warning below:
|
||
|
|
* `PHP Warning: SessionHandler::read(): open(filepath, O_RDWR) failed: No such file or directory (2).`
|
||
|
|
*/
|
||
|
|
if ($sessionId && $this->saveHandler instanceof AbstractProxy && 'files' === $this->saveHandler->getSaveHandlerName() && !preg_match('/^[a-zA-Z0-9,-]{22,250}$/', $sessionId)) {
|
||
|
|
// the session ID in the header is invalid, create a new one
|
||
|
|
session_id(session_create_id());
|
||
|
|
}
|
||
|
|
|
||
|
|
// ok to try and start the session
|
||
|
|
if (!session_start()) {
|
||
|
|
throw new \RuntimeException('Failed to start the session.');
|
||
|
|
}
|
||
|
|
|
||
|
|
if (null !== $this->emulateSameSite) {
|
||
|
|
$originalCookie = SessionUtils::popSessionCookie(session_name(), session_id());
|
||
|
|
if (null !== $originalCookie) {
|
||
|
|
header(sprintf('%s; SameSite=%s', $originalCookie, $this->emulateSameSite), false);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->loadSession();
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* {@inheritdoc}
|
||
|
|
*/
|
||
|
|
public function getId()
|
||
|
|
{
|
||
|
|
return $this->saveHandler->getId();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* {@inheritdoc}
|
||
|
|
*/
|
||
|
|
public function setId(string $id)
|
||
|
|
{
|
||
|
|
$this->saveHandler->setId($id);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* {@inheritdoc}
|
||
|
|
*/
|
||
|
|
public function getName()
|
||
|
|
{
|
||
|
|
return $this->saveHandler->getName();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* {@inheritdoc}
|
||
|
|
*/
|
||
|
|
public function setName(string $name)
|
||
|
|
{
|
||
|
|
$this->saveHandler->setName($name);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* {@inheritdoc}
|
||
|
|
*/
|
||
|
|
public function regenerate(bool $destroy = false, int $lifetime = null)
|
||
|
|
{
|
||
|
|
// Cannot regenerate the session ID for non-active sessions.
|
||
|
|
if (\PHP_SESSION_ACTIVE !== session_status()) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (headers_sent()) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (null !== $lifetime && $lifetime != \ini_get('session.cookie_lifetime')) {
|
||
|
|
$this->save();
|
||
|
|
ini_set('session.cookie_lifetime', $lifetime);
|
||
|
|
$this->start();
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($destroy) {
|
||
|
|
$this->metadataBag->stampNew();
|
||
|
|
}
|
||
|
|
|
||
|
|
$isRegenerated = session_regenerate_id($destroy);
|
||
|
|
|
||
|
|
if (null !== $this->emulateSameSite) {
|
||
|
|
$originalCookie = SessionUtils::popSessionCookie(session_name(), session_id());
|
||
|
|
if (null !== $originalCookie) {
|
||
|
|
header(sprintf('%s; SameSite=%s', $originalCookie, $this->emulateSameSite), false);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $isRegenerated;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* {@inheritdoc}
|
||
|
|
*/
|
||
|
|
public function save()
|
||
|
|
{
|
||
|
|
// Store a copy so we can restore the bags in case the session was not left empty
|
||
|
|
$session = $_SESSION;
|
||
|
|
|
||
|
|
foreach ($this->bags as $bag) {
|
||
|
|
if (empty($_SESSION[$key = $bag->getStorageKey()])) {
|
||
|
|
unset($_SESSION[$key]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ($_SESSION && [$key = $this->metadataBag->getStorageKey()] === array_keys($_SESSION)) {
|
||
|
|
unset($_SESSION[$key]);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Register error handler to add information about the current save handler
|
||
|
|
$previousHandler = set_error_handler(function ($type, $msg, $file, $line) use (&$previousHandler) {
|
||
|
|
if (\E_WARNING === $type && str_starts_with($msg, 'session_write_close():')) {
|
||
|
|
$handler = $this->saveHandler instanceof SessionHandlerProxy ? $this->saveHandler->getHandler() : $this->saveHandler;
|
||
|
|
$msg = sprintf('session_write_close(): Failed to write session data with "%s" handler', \get_class($handler));
|
||
|
|
}
|
||
|
|
|
||
|
|
return $previousHandler ? $previousHandler($type, $msg, $file, $line) : false;
|
||
|
|
});
|
||
|
|
|
||
|
|
try {
|
||
|
|
session_write_close();
|
||
|
|
} finally {
|
||
|
|
restore_error_handler();
|
||
|
|
|
||
|
|
// Restore only if not empty
|
||
|
|
if ($_SESSION) {
|
||
|
|
$_SESSION = $session;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->closed = true;
|
||
|
|
$this->started = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* {@inheritdoc}
|
||
|
|
*/
|
||
|
|
public function clear()
|
||
|
|
{
|
||
|
|
// clear out the bags
|
||
|
|
foreach ($this->bags as $bag) {
|
||
|
|
$bag->clear();
|
||
|
|
}
|
||
|
|
|
||
|
|
// clear out the session
|
||
|
|
$_SESSION = [];
|
||
|
|
|
||
|
|
// reconnect the bags to the session
|
||
|
|
$this->loadSession();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* {@inheritdoc}
|
||
|
|
*/
|
||
|
|
public function registerBag(SessionBagInterface $bag)
|
||
|
|
{
|
||
|
|
if ($this->started) {
|
||
|
|
throw new \LogicException('Cannot register a bag when the session is already started.');
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->bags[$bag->getName()] = $bag;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* {@inheritdoc}
|
||
|
|
*/
|
||
|
|
public function getBag(string $name)
|
||
|
|
{
|
||
|
|
if (!isset($this->bags[$name])) {
|
||
|
|
throw new \InvalidArgumentException(sprintf('The SessionBagInterface "%s" is not registered.', $name));
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!$this->started && $this->saveHandler->isActive()) {
|
||
|
|
$this->loadSession();
|
||
|
|
} elseif (!$this->started) {
|
||
|
|
$this->start();
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this->bags[$name];
|
||
|
|
}
|
||
|
|
|
||
|
|
public function setMetadataBag(MetadataBag $metaBag = null)
|
||
|
|
{
|
||
|
|
if (null === $metaBag) {
|
||
|
|
$metaBag = new MetadataBag();
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->metadataBag = $metaBag;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gets the MetadataBag.
|
||
|
|
*
|
||
|
|
* @return MetadataBag
|
||
|
|
*/
|
||
|
|
public function getMetadataBag()
|
||
|
|
{
|
||
|
|
return $this->metadataBag;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* {@inheritdoc}
|
||
|
|
*/
|
||
|
|
public function isStarted()
|
||
|
|
{
|
||
|
|
return $this->started;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets session.* ini variables.
|
||
|
|
*
|
||
|
|
* For convenience we omit 'session.' from the beginning of the keys.
|
||
|
|
* Explicitly ignores other ini keys.
|
||
|
|
*
|
||
|
|
* @param array $options Session ini directives [key => value]
|
||
|
|
*
|
||
|
|
* @see https://php.net/session.configuration
|
||
|
|
*/
|
||
|
|
public function setOptions(array $options)
|
||
|
|
{
|
||
|
|
if (headers_sent() || \PHP_SESSION_ACTIVE === session_status()) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
$validOptions = array_flip([
|
||
|
|
'cache_expire', 'cache_limiter', 'cookie_domain', 'cookie_httponly',
|
||
|
|
'cookie_lifetime', 'cookie_path', 'cookie_secure', 'cookie_samesite',
|
||
|
|
'gc_divisor', 'gc_maxlifetime', 'gc_probability',
|
||
|
|
'lazy_write', 'name', 'referer_check',
|
||
|
|
'serialize_handler', 'use_strict_mode', 'use_cookies',
|
||
|
|
'use_only_cookies', 'use_trans_sid', 'upload_progress.enabled',
|
||
|
|
'upload_progress.cleanup', 'upload_progress.prefix', 'upload_progress.name',
|
||
|
|
'upload_progress.freq', 'upload_progress.min_freq', 'url_rewriter.tags',
|
||
|
|
'sid_length', 'sid_bits_per_character', 'trans_sid_hosts', 'trans_sid_tags',
|
||
|
|
]);
|
||
|
|
|
||
|
|
foreach ($options as $key => $value) {
|
||
|
|
if (isset($validOptions[$key])) {
|
||
|
|
if (str_starts_with($key, 'upload_progress.')) {
|
||
|
|
trigger_deprecation('symfony/http-foundation', '5.4', 'Support for the "%s" session option is deprecated. The settings prefixed with "session.upload_progress." can not be changed at runtime.', $key);
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
if ('url_rewriter.tags' === $key) {
|
||
|
|
trigger_deprecation('symfony/http-foundation', '5.4', 'Support for the "%s" session option is deprecated. Use "trans_sid_tags" instead.', $key);
|
||
|
|
}
|
||
|
|
if ('cookie_samesite' === $key && \PHP_VERSION_ID < 70300) {
|
||
|
|
// PHP < 7.3 does not support same_site cookies. We will emulate it in
|
||
|
|
// the start() method instead.
|
||
|
|
$this->emulateSameSite = $value;
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
if ('cookie_secure' === $key && 'auto' === $value) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
ini_set('url_rewriter.tags' !== $key ? 'session.'.$key : $key, $value);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Registers session save handler as a PHP session handler.
|
||
|
|
*
|
||
|
|
* To use internal PHP session save handlers, override this method using ini_set with
|
||
|
|
* session.save_handler and session.save_path e.g.
|
||
|
|
*
|
||
|
|
* ini_set('session.save_handler', 'files');
|
||
|
|
* ini_set('session.save_path', '/tmp');
|
||
|
|
*
|
||
|
|
* or pass in a \SessionHandler instance which configures session.save_handler in the
|
||
|
|
* constructor, for a template see NativeFileSessionHandler.
|
||
|
|
*
|
||
|
|
* @see https://php.net/session-set-save-handler
|
||
|
|
* @see https://php.net/sessionhandlerinterface
|
||
|
|
* @see https://php.net/sessionhandler
|
||
|
|
*
|
||
|
|
* @param AbstractProxy|\SessionHandlerInterface|null $saveHandler
|
||
|
|
*
|
||
|
|
* @throws \InvalidArgumentException
|
||
|
|
*/
|
||
|
|
public function setSaveHandler($saveHandler = null)
|
||
|
|
{
|
||
|
|
if (!$saveHandler instanceof AbstractProxy &&
|
||
|
|
!$saveHandler instanceof \SessionHandlerInterface &&
|
||
|
|
null !== $saveHandler) {
|
||
|
|
throw new \InvalidArgumentException('Must be instance of AbstractProxy; implement \SessionHandlerInterface; or be null.');
|
||
|
|
}
|
||
|
|
|
||
|
|
// Wrap $saveHandler in proxy and prevent double wrapping of proxy
|
||
|
|
if (!$saveHandler instanceof AbstractProxy && $saveHandler instanceof \SessionHandlerInterface) {
|
||
|
|
$saveHandler = new SessionHandlerProxy($saveHandler);
|
||
|
|
} elseif (!$saveHandler instanceof AbstractProxy) {
|
||
|
|
$saveHandler = new SessionHandlerProxy(new StrictSessionHandler(new \SessionHandler()));
|
||
|
|
}
|
||
|
|
$this->saveHandler = $saveHandler;
|
||
|
|
|
||
|
|
if (headers_sent() || \PHP_SESSION_ACTIVE === session_status()) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($this->saveHandler instanceof SessionHandlerProxy) {
|
||
|
|
session_set_save_handler($this->saveHandler, false);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Load the session with attributes.
|
||
|
|
*
|
||
|
|
* After starting the session, PHP retrieves the session from whatever handlers
|
||
|
|
* are set to (either PHP's internal, or a custom save handler set with session_set_save_handler()).
|
||
|
|
* PHP takes the return value from the read() handler, unserializes it
|
||
|
|
* and populates $_SESSION with the result automatically.
|
||
|
|
*/
|
||
|
|
protected function loadSession(array &$session = null)
|
||
|
|
{
|
||
|
|
if (null === $session) {
|
||
|
|
$session = &$_SESSION;
|
||
|
|
}
|
||
|
|
|
||
|
|
$bags = array_merge($this->bags, [$this->metadataBag]);
|
||
|
|
|
||
|
|
foreach ($bags as $bag) {
|
||
|
|
$key = $bag->getStorageKey();
|
||
|
|
$session[$key] = isset($session[$key]) && \is_array($session[$key]) ? $session[$key] : [];
|
||
|
|
$bag->initialize($session[$key]);
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->started = true;
|
||
|
|
$this->closed = false;
|
||
|
|
}
|
||
|
|
}
|