diff vendor/symfony/http-foundation/Session/Storage/NativeSessionStorage.php @ 0:4c8ae668cc8c

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/symfony/http-foundation/Session/Storage/NativeSessionStorage.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,399 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <[e-mail]>
+ *
+ * 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\Storage\Handler\NativeSessionHandler;
+use Symfony\Component\HttpFoundation\Session\Storage\Proxy\AbstractProxy;
+use Symfony\Component\HttpFoundation\Session\Storage\Proxy\SessionHandlerProxy;
+
+/**
+ * This provides a base class for session attribute storage.
+ *
+ * @author Drak <[e-mail]>
+ */
+class NativeSessionStorage implements SessionStorageInterface
+{
+    /**
+     * Array of SessionBagInterface.
+     *
+     * @var SessionBagInterface[]
+     */
+    protected $bags;
+
+    /**
+     * @var bool
+     */
+    protected $started = false;
+
+    /**
+     * @var bool
+     */
+    protected $closed = false;
+
+    /**
+     * @var AbstractProxy
+     */
+    protected $saveHandler;
+
+    /**
+     * @var MetadataBag
+     */
+    protected $metadataBag;
+
+    /**
+     * Constructor.
+     *
+     * 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 http://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).
+     * cookie_domain, ""
+     * cookie_httponly, ""
+     * cookie_lifetime, "0"
+     * cookie_path, "/"
+     * cookie_secure, ""
+     * entropy_file, ""
+     * entropy_length, "0"
+     * gc_divisor, "100"
+     * gc_maxlifetime, "1440"
+     * gc_probability, "1"
+     * hash_bits_per_character, "4"
+     * hash_function, "0"
+     * name, "PHPSESSID"
+     * referer_check, ""
+     * serialize_handler, "php"
+     * use_strict_mode, "0"
+     * use_cookies, "1"
+     * use_only_cookies, "1"
+     * use_trans_sid, "0"
+     * upload_progress.enabled, "1"
+     * upload_progress.cleanup, "1"
+     * upload_progress.prefix, "upload_progress_"
+     * upload_progress.name, "PHP_SESSION_UPLOAD_PROGRESS"
+     * upload_progress.freq, "1%"
+     * upload_progress.min-freq, "1"
+     * url_rewriter.tags, "a=href,area=href,frame=src,form=,fieldset="
+     *
+     * @param array                                                            $options Session configuration options
+     * @param AbstractProxy|NativeSessionHandler|\SessionHandlerInterface|null $handler
+     * @param MetadataBag                                                      $metaBag MetadataBag
+     */
+    public function __construct(array $options = array(), $handler = null, MetadataBag $metaBag = null)
+    {
+        session_cache_limiter(''); // disable by default because it's managed by HeaderBag (if used)
+        ini_set('session.use_cookies', 1);
+
+        session_register_shutdown();
+
+        $this->setMetadataBag($metaBag);
+        $this->setOptions($options);
+        $this->setSaveHandler($handler);
+    }
+
+    /**
+     * Gets the save handler instance.
+     *
+     * @return AbstractProxy
+     */
+    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 (ini_get('session.use_cookies') && 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));
+        }
+
+        // ok to try and start the session
+        if (!session_start()) {
+            throw new \RuntimeException('Failed to start the session');
+        }
+
+        $this->loadSession();
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getId()
+    {
+        return $this->saveHandler->getId();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setId($id)
+    {
+        $this->saveHandler->setId($id);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getName()
+    {
+        return $this->saveHandler->getName();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setName($name)
+    {
+        $this->saveHandler->setName($name);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function regenerate($destroy = false, $lifetime = null)
+    {
+        // Cannot regenerate the session ID for non-active sessions.
+        if (\PHP_SESSION_ACTIVE !== session_status()) {
+            return false;
+        }
+
+        if (null !== $lifetime) {
+            ini_set('session.cookie_lifetime', $lifetime);
+        }
+
+        if ($destroy) {
+            $this->metadataBag->stampNew();
+        }
+
+        $isRegenerated = session_regenerate_id($destroy);
+
+        // The reference to $_SESSION in session bags is lost in PHP7 and we need to re-create it.
+        // @see https://bugs.php.net/bug.php?id=70013
+        $this->loadSession();
+
+        return $isRegenerated;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function save()
+    {
+        session_write_close();
+
+        $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 = array();
+
+        // 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()] = $bag;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getBag($name)
+    {
+        if (!isset($this->bags[$name])) {
+            throw new \InvalidArgumentException(sprintf('The SessionBagInterface %s is not registered.', $name));
+        }
+
+        if ($this->saveHandler->isActive() && !$this->started) {
+            $this->loadSession();
+        } elseif (!$this->started) {
+            $this->start();
+        }
+
+        return $this->bags[$name];
+    }
+
+    /**
+     * Sets the MetadataBag.
+     *
+     * @param MetadataBag $metaBag
+     */
+    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 array(key => value)
+     *
+     * @see http://php.net/session.configuration
+     */
+    public function setOptions(array $options)
+    {
+        $validOptions = array_flip(array(
+            'cache_limiter', 'cookie_domain', 'cookie_httponly',
+            'cookie_lifetime', 'cookie_path', 'cookie_secure',
+            'entropy_file', 'entropy_length', 'gc_divisor',
+            'gc_maxlifetime', 'gc_probability', 'hash_bits_per_character',
+            'hash_function', 'name', 'referer_check',
+            'serialize_handler', 'use_strict_mode', 'use_cookies',
+            'use_only_cookies', 'use_trans_sid', 'upload_progress.enabled',
+            'upload_progress.cleanup', 'upload_progress.prefix', 'upload_progress.name',
+            'upload_progress.freq', 'upload_progress.min-freq', 'url_rewriter.tags',
+        ));
+
+        foreach ($options as $key => $value) {
+            if (isset($validOptions[$key])) {
+                ini_set('session.'.$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 NativeSessionHandler instance which configures session.save_handler in the
+     * constructor, for a template see NativeFileSessionHandler or use handlers in
+     * composer package drak/native-session
+     *
+     * @see http://php.net/session-set-save-handler
+     * @see http://php.net/sessionhandlerinterface
+     * @see http://php.net/sessionhandler
+     * @see http://github.com/drak/NativeSession
+     *
+     * @param AbstractProxy|NativeSessionHandler|\SessionHandlerInterface|null $saveHandler
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function setSaveHandler($saveHandler = null)
+    {
+        if (!$saveHandler instanceof AbstractProxy &&
+            !$saveHandler instanceof NativeSessionHandler &&
+            !$saveHandler instanceof \SessionHandlerInterface &&
+            null !== $saveHandler) {
+            throw new \InvalidArgumentException('Must be instance of AbstractProxy or NativeSessionHandler; 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 \SessionHandler());
+        }
+        $this->saveHandler = $saveHandler;
+
+        if ($this->saveHandler instanceof \SessionHandlerInterface) {
+            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.
+     *
+     * @param array|null $session
+     */
+    protected function loadSession(array &$session = null)
+    {
+        if (null === $session) {
+            $session = &$_SESSION;
+        }
+
+        $bags = array_merge($this->bags, array($this->metadataBag));
+
+        foreach ($bags as $bag) {
+            $key = $bag->getStorageKey();
+            $session[$key] = isset($session[$key]) ? $session[$key] : array();
+            $bag->initialize($session[$key]);
+        }
+
+        $this->started = true;
+        $this->closed = false;
+    }
+}