the whole shebang

vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Attribute/AttributeBag.php

@@ -0,0 +1,157 @@
+<?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\Attribute;
+
+/**
+ * This class relates to session attribute storage
+ */
+class AttributeBag implements AttributeBagInterface, \IteratorAggregate, \Countable
+{
+    private $name = 'attributes';
+
+    /**
+     * @var string
+     */
+    private $storageKey;
+
+    /**
+     * @var array
+     */
+    protected $attributes = array();
+
+    /**
+     * Constructor.
+     *
+     * @param string $storageKey The key used to store attributes in the session.
+     */
+    public function __construct($storageKey = '_sf2_attributes')
+    {
+        $this->storageKey = $storageKey;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    public function setName($name)
+    {
+        $this->name = $name;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function initialize(array &$attributes)
+    {
+        $this->attributes = &$attributes;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getStorageKey()
+    {
+        return $this->storageKey;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function has($name)
+    {
+        return array_key_exists($name, $this->attributes);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function get($name, $default = null)
+    {
+        return array_key_exists($name, $this->attributes) ? $this->attributes[$name] : $default;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function set($name, $value)
+    {
+        $this->attributes[$name] = $value;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function all()
+    {
+        return $this->attributes;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function replace(array $attributes)
+    {
+        $this->attributes = array();
+        foreach ($attributes as $key => $value) {
+            $this->set($key, $value);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function remove($name)
+    {
+        $retval = null;
+        if (array_key_exists($name, $this->attributes)) {
+            $retval = $this->attributes[$name];
+            unset($this->attributes[$name]);
+        }
+
+        return $retval;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        $return = $this->attributes;
+        $this->attributes = array();
+
+        return $return;
+    }
+
+    /**
+     * Returns an iterator for attributes.
+     *
+     * @return \ArrayIterator An \ArrayIterator instance
+     */
+    public function getIterator()
+    {
+        return new \ArrayIterator($this->attributes);
+    }
+
+    /**
+     * Returns the number of attributes.
+     *
+     * @return int The number of attributes
+     */
+    public function count()
+    {
+        return count($this->attributes);
+    }
+}

vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Attribute/AttributeBagInterface.php

@@ -0,0 +1,72 @@
+<?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\Attribute;
+
+use Symfony\Component\HttpFoundation\Session\SessionBagInterface;
+
+/**
+ * Attributes store.
+ *
+ * @author Drak <drak@zikula.org>
+ */
+interface AttributeBagInterface extends SessionBagInterface
+{
+    /**
+     * Checks if an attribute is defined.
+     *
+     * @param string $name The attribute name
+     *
+     * @return Boolean true if the attribute is defined, false otherwise
+     */
+    public function has($name);
+
+    /**
+     * Returns an attribute.
+     *
+     * @param string $name    The attribute name
+     * @param mixed  $default The default value if not found.
+     *
+     * @return mixed
+     */
+    public function get($name, $default = null);
+
+    /**
+     * Sets an attribute.
+     *
+     * @param string $name
+     * @param mixed  $value
+     */
+    public function set($name, $value);
+
+    /**
+     * Returns attributes.
+     *
+     * @return array Attributes
+     */
+    public function all();
+
+    /**
+     * Sets attributes.
+     *
+     * @param array $attributes Attributes
+     */
+    public function replace(array $attributes);
+
+    /**
+     * Removes an attribute.
+     *
+     * @param string $name
+     *
+     * @return mixed The removed value
+     */
+    public function remove($name);
+}

vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Attribute/NamespacedAttributeBag.php

@@ -0,0 +1,158 @@
+<?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\Attribute;
+
+/**
+ * This class provides structured storage of session attributes using
+ * a name spacing character in the key.
+ *
+ * @author Drak <drak@zikula.org>
+ */
+class NamespacedAttributeBag extends AttributeBag
+{
+    /**
+     * Namespace character.
+     *
+     * @var string
+     */
+    private $namespaceCharacter;
+
+    /**
+     * Constructor.
+     *
+     * @param string $storageKey         Session storage key.
+     * @param string $namespaceCharacter Namespace character to use in keys.
+     */
+    public function __construct($storageKey = '_sf2_attributes', $namespaceCharacter = '/')
+    {
+        $this->namespaceCharacter = $namespaceCharacter;
+        parent::__construct($storageKey);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function has($name)
+    {
+        $attributes = $this->resolveAttributePath($name);
+        $name = $this->resolveKey($name);
+
+        if (null === $attributes) {
+            return false;
+        }
+
+        return array_key_exists($name, $attributes);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function get($name, $default = null)
+    {
+        $attributes = $this->resolveAttributePath($name);
+        $name = $this->resolveKey($name);
+
+        if (null === $attributes) {
+            return $default;
+        }
+
+        return array_key_exists($name, $attributes) ? $attributes[$name] : $default;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function set($name, $value)
+    {
+        $attributes = & $this->resolveAttributePath($name, true);
+        $name = $this->resolveKey($name);
+        $attributes[$name] = $value;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function remove($name)
+    {
+        $retval = null;
+        $attributes = & $this->resolveAttributePath($name);
+        $name = $this->resolveKey($name);
+        if (null !== $attributes && array_key_exists($name, $attributes)) {
+            $retval = $attributes[$name];
+            unset($attributes[$name]);
+        }
+
+        return $retval;
+    }
+
+    /**
+     * Resolves a path in attributes property and returns it as a reference.
+     *
+     * This method allows structured namespacing of session attributes.
+     *
+     * @param string  $name         Key name
+     * @param boolean $writeContext Write context, default false
+     *
+     * @return array
+     */
+    protected function &resolveAttributePath($name, $writeContext = false)
+    {
+        $array = & $this->attributes;
+        $name = (strpos($name, $this->namespaceCharacter) === 0) ? substr($name, 1) : $name;
+
+        // Check if there is anything to do, else return
+        if (!$name) {
+            return $array;
+        }
+
+        $parts = explode($this->namespaceCharacter, $name);
+        if (count($parts) < 2) {
+            if (!$writeContext) {
+                return $array;
+            }
+
+            $array[$parts[0]] = array();
+
+            return $array;
+        }
+
+        unset($parts[count($parts)-1]);
+
+        foreach ($parts as $part) {
+            if (null !== $array && !array_key_exists($part, $array)) {
+                $array[$part] = $writeContext ? array() : null;
+            }
+
+            $array = & $array[$part];
+        }
+
+        return $array;
+    }
+
+    /**
+     * Resolves the key from the name.
+     *
+     * This is the last part in a dot separated string.
+     *
+     * @param string $name
+     *
+     * @return string
+     */
+    protected function resolveKey($name)
+    {
+        if (strpos($name, $this->namespaceCharacter) !== false) {
+            $name = substr($name, strrpos($name, $this->namespaceCharacter)+1, strlen($name));
+        }
+
+        return $name;
+    }
+}

vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Flash/AutoExpireFlashBag.php

@@ -0,0 +1,176 @@
+<?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\Flash;
+
+/**
+ * AutoExpireFlashBag flash message container.
+ *
+ * @author Drak <drak@zikula.org>
+ */
+class AutoExpireFlashBag implements FlashBagInterface
+{
+    private $name = 'flashes';
+
+    /**
+     * Flash messages.
+     *
+     * @var array
+     */
+    private $flashes = array();
+
+    /**
+     * The storage key for flashes in the session
+     *
+     * @var string
+     */
+    private $storageKey;
+
+    /**
+     * Constructor.
+     *
+     * @param string $storageKey The key used to store flashes in the session.
+     */
+    public function __construct($storageKey = '_sf2_flashes')
+    {
+        $this->storageKey = $storageKey;
+        $this->flashes = array('display' => array(), 'new' => array());
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    public function setName($name)
+    {
+        $this->name = $name;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function initialize(array &$flashes)
+    {
+        $this->flashes = &$flashes;
+
+        // The logic: messages from the last request will be stored in new, so we move them to previous
+        // This request we will show what is in 'display'.  What is placed into 'new' this time round will
+        // be moved to display next time round.
+        $this->flashes['display'] = array_key_exists('new', $this->flashes) ? $this->flashes['new'] : array();
+        $this->flashes['new'] = array();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function add($type, $message)
+    {
+        $this->flashes['new'][$type][] = $message;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function peek($type, array $default = array())
+    {
+        return $this->has($type) ? $this->flashes['display'][$type] : $default;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function peekAll()
+    {
+        return array_key_exists('display', $this->flashes) ? (array) $this->flashes['display'] : array();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function get($type, array $default = array())
+    {
+        $return = $default;
+
+        if (!$this->has($type)) {
+            return $return;
+        }
+
+        if (isset($this->flashes['display'][$type])) {
+            $return = $this->flashes['display'][$type];
+            unset($this->flashes['display'][$type]);
+        }
+
+        return $return;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function all()
+    {
+        $return = $this->flashes['display'];
+        $this->flashes = array('new' => array(), 'display' => array());
+
+        return $return;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setAll(array $messages)
+    {
+        $this->flashes['new'] = $messages;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function set($type, $messages)
+    {
+        $this->flashes['new'][$type] = (array) $messages;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function has($type)
+    {
+        return array_key_exists($type, $this->flashes['display']) && $this->flashes['display'][$type];
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function keys()
+    {
+        return array_keys($this->flashes['display']);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getStorageKey()
+    {
+        return $this->storageKey;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        return $this->all();
+    }
+}

vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Flash/FlashBag.php

@@ -0,0 +1,176 @@
+<?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\Flash;
+
+/**
+ * FlashBag flash message container.
+ *
+ * @author Drak <drak@zikula.org>
+ */
+class FlashBag implements FlashBagInterface, \IteratorAggregate
+{
+    private $name = 'flashes';
+
+    /**
+     * Flash messages.
+     *
+     * @var array
+     */
+    private $flashes = array();
+
+    /**
+     * The storage key for flashes in the session
+     *
+     * @var string
+     */
+    private $storageKey;
+
+    /**
+     * Constructor.
+     *
+     * @param string $storageKey The key used to store flashes in the session.
+     */
+    public function __construct($storageKey = '_sf2_flashes')
+    {
+        $this->storageKey = $storageKey;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    public function setName($name)
+    {
+        $this->name = $name;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function initialize(array &$flashes)
+    {
+        $this->flashes = &$flashes;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function add($type, $message)
+    {
+        $this->flashes[$type][] = $message;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function peek($type, array $default =array())
+    {
+        return $this->has($type) ? $this->flashes[$type] : $default;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function peekAll()
+    {
+        return $this->flashes;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function get($type, array $default = array())
+    {
+        if (!$this->has($type)) {
+            return $default;
+        }
+
+        $return = $this->flashes[$type];
+
+        unset($this->flashes[$type]);
+
+        return $return;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function all()
+    {
+        $return = $this->peekAll();
+        $this->flashes = array();
+
+        return $return;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function set($type, $messages)
+    {
+        $this->flashes[$type] = (array) $messages;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setAll(array $messages)
+    {
+        $this->flashes = $messages;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function has($type)
+    {
+        return array_key_exists($type, $this->flashes) && $this->flashes[$type];
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function keys()
+    {
+        return array_keys($this->flashes);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getStorageKey()
+    {
+        return $this->storageKey;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        return $this->all();
+    }
+
+    /**
+     * Returns an iterator for flashes.
+     *
+     * @return \ArrayIterator An \ArrayIterator instance
+     */
+    public function getIterator()
+    {
+        return new \ArrayIterator($this->all());
+    }
+}

vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Flash/FlashBagInterface.php

@@ -0,0 +1,93 @@
+<?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\Flash;
+
+use Symfony\Component\HttpFoundation\Session\SessionBagInterface;
+
+/**
+ * FlashBagInterface.
+ *
+ * @author Drak <drak@zikula.org>
+ */
+interface FlashBagInterface extends SessionBagInterface
+{
+    /**
+     * Adds a flash message for type.
+     *
+     * @param string $type
+     * @param string $message
+     */
+    public function add($type, $message);
+
+    /**
+     * Registers a message for a given type.
+     *
+     * @param string       $type
+     * @param string|array $message
+     */
+    public function set($type, $message);
+
+    /**
+     * Gets flash messages for a given type.
+     *
+     * @param string $type    Message category type.
+     * @param array  $default Default value if $type does not exist.
+     *
+     * @return array
+     */
+    public function peek($type, array $default = array());
+
+    /**
+     * Gets all flash messages.
+     *
+     * @return array
+     */
+    public function peekAll();
+
+    /**
+     * Gets and clears flash from the stack.
+     *
+     * @param string $type
+     * @param array  $default Default value if $type does not exist.
+     *
+     * @return array
+     */
+    public function get($type, array $default = array());
+
+    /**
+     * Gets and clears flashes from the stack.
+     *
+     * @return array
+     */
+    public function all();
+
+    /**
+     * Sets all flash messages.
+     */
+    public function setAll(array $messages);
+
+    /**
+     * Has flash messages for a given type?
+     *
+     * @param string $type
+     *
+     * @return boolean
+     */
+    public function has($type);
+
+    /**
+     * Returns a list of all defined types.
+     *
+     * @return array
+     */
+    public function keys();
+}

vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Session.php

@@ -0,0 +1,252 @@
+<?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;
+
+use Symfony\Component\HttpFoundation\Session\Storage\SessionStorageInterface;
+use Symfony\Component\HttpFoundation\Session\Attribute\AttributeBag;
+use Symfony\Component\HttpFoundation\Session\Attribute\AttributeBagInterface;
+use Symfony\Component\HttpFoundation\Session\Flash\FlashBag;
+use Symfony\Component\HttpFoundation\Session\Flash\FlashBagInterface;
+use Symfony\Component\HttpFoundation\Session\SessionBagInterface;
+use Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage;
+
+/**
+ * Session.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Drak <drak@zikula.org>
+ *
+ * @api
+ */
+class Session implements SessionInterface, \IteratorAggregate, \Countable
+{
+    /**
+     * Storage driver.
+     *
+     * @var SessionStorageInterface
+     */
+    protected $storage;
+
+    /**
+     * @var string
+     */
+    private $flashName;
+
+    /**
+     * @var string
+     */
+    private $attributeName;
+
+    /**
+     * Constructor.
+     *
+     * @param SessionStorageInterface $storage    A SessionStorageInterface instance.
+     * @param AttributeBagInterface   $attributes An AttributeBagInterface instance, (defaults null for default AttributeBag)
+     * @param FlashBagInterface       $flashes    A FlashBagInterface instance (defaults null for default FlashBag)
+     */
+    public function __construct(SessionStorageInterface $storage = null, AttributeBagInterface $attributes = null, FlashBagInterface $flashes = null)
+    {
+        $this->storage = $storage ?: new NativeSessionStorage();
+
+        $attributes = $attributes ?: new AttributeBag();
+        $this->attributeName = $attributes->getName();
+        $this->registerBag($attributes);
+
+        $flashes = $flashes ?: new FlashBag();
+        $this->flashName = $flashes->getName();
+        $this->registerBag($flashes);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function start()
+    {
+        return $this->storage->start();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function has($name)
+    {
+        return $this->storage->getBag($this->attributeName)->has($name);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function get($name, $default = null)
+    {
+        return $this->storage->getBag($this->attributeName)->get($name, $default);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function set($name, $value)
+    {
+        $this->storage->getBag($this->attributeName)->set($name, $value);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function all()
+    {
+        return $this->storage->getBag($this->attributeName)->all();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function replace(array $attributes)
+    {
+        $this->storage->getBag($this->attributeName)->replace($attributes);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function remove($name)
+    {
+        return $this->storage->getBag($this->attributeName)->remove($name);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        $this->storage->getBag($this->attributeName)->clear();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function isStarted()
+    {
+        return $this->storage->isStarted();
+    }
+
+    /**
+     * Returns an iterator for attributes.
+     *
+     * @return \ArrayIterator An \ArrayIterator instance
+     */
+    public function getIterator()
+    {
+        return new \ArrayIterator($this->storage->getBag($this->attributeName)->all());
+    }
+
+    /**
+     * Returns the number of attributes.
+     *
+     * @return int The number of attributes
+     */
+    public function count()
+    {
+        return count($this->storage->getBag($this->attributeName)->all());
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function invalidate($lifetime = null)
+    {
+        $this->storage->clear();
+
+        return $this->migrate(true, $lifetime);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function migrate($destroy = false, $lifetime = null)
+    {
+        return $this->storage->regenerate($destroy, $lifetime);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function save()
+    {
+        $this->storage->save();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getId()
+    {
+        return $this->storage->getId();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setId($id)
+    {
+        $this->storage->setId($id);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getName()
+    {
+        return $this->storage->getName();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setName($name)
+    {
+        $this->storage->setName($name);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getMetadataBag()
+    {
+        return $this->storage->getMetadataBag();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function registerBag(SessionBagInterface $bag)
+    {
+        $this->storage->registerBag($bag);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getBag($name)
+    {
+        return $this->storage->getBag($name);
+    }
+
+    /**
+     * Gets the flashbag interface.
+     *
+     * @return FlashBagInterface
+     */
+    public function getFlashBag()
+    {
+        return $this->getBag($this->flashName);
+    }
+}

vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/SessionBagInterface.php

@@ -0,0 +1,48 @@
+<?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;
+
+/**
+ * Session Bag store.
+ *
+ * @author Drak <drak@zikula.org>
+ */
+interface SessionBagInterface
+{
+    /**
+     * Gets this bag's name
+     *
+     * @return string
+     */
+    public function getName();
+
+    /**
+     * Initializes the Bag
+     *
+     * @param array $array
+     */
+    public function initialize(array &$array);
+
+    /**
+     * Gets the storage key for this bag.
+     *
+     * @return string
+     */
+    public function getStorageKey();
+
+    /**
+     * Clears out data from bag.
+     *
+     * @return mixed Whatever data was contained.
+     */
+    public function clear();
+}

vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/SessionInterface.php

@@ -0,0 +1,208 @@
+<?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;
+
+use Symfony\Component\HttpFoundation\Session\Storage\MetadataBag;
+
+/**
+ * Interface for the session.
+ *
+ * @author Drak <drak@zikula.org>
+ */
+interface SessionInterface
+{
+    /**
+     * Starts the session storage.
+     *
+     * @return Boolean True if session started.
+     *
+     * @throws \RuntimeException If session fails to start.
+     *
+     * @api
+     */
+    public function start();
+
+    /**
+     * Returns the session ID.
+     *
+     * @return string The session ID.
+     *
+     * @api
+     */
+    public function getId();
+
+    /**
+     * Sets the session ID
+     *
+     * @param string $id
+     *
+     * @api
+     */
+    public function setId($id);
+
+    /**
+     * Returns the session name.
+     *
+     * @return mixed The session name.
+     *
+     * @api
+     */
+    public function getName();
+
+    /**
+     * Sets the session name.
+     *
+     * @param string $name
+     *
+     * @api
+     */
+    public function setName($name);
+
+    /**
+     * Invalidates the current session.
+     *
+     * Clears all session attributes and flashes and regenerates the
+     * session and deletes the old session from persistence.
+     *
+     * @param integer $lifetime Sets the cookie lifetime for the session cookie. A null value
+     *                          will leave the system settings unchanged, 0 sets the cookie
+     *                          to expire with browser session. Time is in seconds, and is
+     *                          not a Unix timestamp.
+     *
+     * @return Boolean True if session invalidated, false if error.
+     *
+     * @api
+     */
+    public function invalidate($lifetime = null);
+
+    /**
+     * Migrates the current session to a new session id while maintaining all
+     * session attributes.
+     *
+     * @param Boolean $destroy  Whether to delete the old session or leave it to garbage collection.
+     * @param integer $lifetime Sets the cookie lifetime for the session cookie. A null value
+     *                          will leave the system settings unchanged, 0 sets the cookie
+     *                          to expire with browser session. Time is in seconds, and is
+     *                          not a Unix timestamp.
+     *
+     * @return Boolean True if session migrated, false if error.
+     *
+     * @api
+     */
+    public function migrate($destroy = false, $lifetime = null);
+
+    /**
+     * Force the session to be saved and closed.
+     *
+     * This method is generally not required for real sessions as
+     * the session will be automatically saved at the end of
+     * code execution.
+     */
+    public function save();
+
+    /**
+     * Checks if an attribute is defined.
+     *
+     * @param string $name The attribute name
+     *
+     * @return Boolean true if the attribute is defined, false otherwise
+     *
+     * @api
+     */
+    public function has($name);
+
+    /**
+     * Returns an attribute.
+     *
+     * @param string $name    The attribute name
+     * @param mixed  $default The default value if not found.
+     *
+     * @return mixed
+     *
+     * @api
+     */
+    public function get($name, $default = null);
+
+    /**
+     * Sets an attribute.
+     *
+     * @param string $name
+     * @param mixed  $value
+     *
+     * @api
+     */
+    public function set($name, $value);
+
+    /**
+     * Returns attributes.
+     *
+     * @return array Attributes
+     *
+     * @api
+     */
+    public function all();
+
+    /**
+     * Sets attributes.
+     *
+     * @param array $attributes Attributes
+     */
+    public function replace(array $attributes);
+
+    /**
+     * Removes an attribute.
+     *
+     * @param string $name
+     *
+     * @return mixed The removed value
+     *
+     * @api
+     */
+    public function remove($name);
+
+    /**
+     * Clears all attributes.
+     *
+     * @api
+     */
+    public function clear();
+
+    /**
+     * Checks if the session was started.
+     *
+     * @return Boolean
+     */
+    public function isStarted();
+
+    /**
+     * Registers a SessionBagInterface with the session.
+     *
+     * @param SessionBagInterface $bag
+     */
+    public function registerBag(SessionBagInterface $bag);
+
+    /**
+     * Gets a bag instance by name.
+     *
+     * @param string $name
+     *
+     * @return SessionBagInterface
+     */
+    public function getBag($name);
+
+    /**
+     * Gets session meta.
+     *
+     * @return MetadataBag
+     */
+    public function getMetadataBag();
+}

vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Storage/Handler/MemcacheSessionHandler.php

@@ -0,0 +1,109 @@
+<?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\Handler;
+
+/**
+ * MemcacheSessionHandler.
+ *
+ * @author Drak <drak@zikula.org>
+ */
+class MemcacheSessionHandler implements \SessionHandlerInterface
+{
+    /**
+     * @var \Memcache Memcache driver.
+     */
+    private $memcache;
+
+    /**
+     * @var integer Time to live in seconds
+     */
+    private $ttl;
+
+    /**
+     * @var string Key prefix for shared environments.
+     */
+    private $prefix;
+
+    /**
+     * Constructor.
+     *
+     * List of available options:
+     *  * prefix: The prefix to use for the memcache keys in order to avoid collision
+     *  * expiretime: The time to live in seconds
+     *
+     * @param \Memcache $memcache A \Memcache instance
+     * @param array     $options  An associative array of Memcache options
+     *
+     * @throws \InvalidArgumentException When unsupported options are passed
+     */
+    public function __construct(\Memcache $memcache, array $options = array())
+    {
+        if ($diff = array_diff(array_keys($options), array('prefix', 'expiretime'))) {
+            throw new \InvalidArgumentException(sprintf(
+                'The following options are not supported "%s"', implode(', ', $diff)
+            ));
+        }
+
+        $this->memcache = $memcache;
+        $this->ttl = isset($options['expiretime']) ? (int) $options['expiretime'] : 86400;
+        $this->prefix = isset($options['prefix']) ? $options['prefix'] : 'sf2s';
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function open($savePath, $sessionName)
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function close()
+    {
+        return $this->memcache->close();
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function read($sessionId)
+    {
+        return $this->memcache->get($this->prefix.$sessionId) ?: '';
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function write($sessionId, $data)
+    {
+        return $this->memcache->set($this->prefix.$sessionId, $data, 0, time() + $this->ttl);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function destroy($sessionId)
+    {
+        return $this->memcache->delete($this->prefix.$sessionId);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function gc($lifetime)
+    {
+        // not required here because memcache will auto expire the records anyhow.
+        return true;
+    }
+}

vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Storage/Handler/MemcachedSessionHandler.php

@@ -0,0 +1,115 @@
+<?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\Handler;
+
+/**
+ * MemcachedSessionHandler.
+ *
+ * Memcached based session storage handler based on the Memcached class
+ * provided by the PHP memcached extension.
+ *
+ * @see http://php.net/memcached
+ *
+ * @author Drak <drak@zikula.org>
+ */
+class MemcachedSessionHandler implements \SessionHandlerInterface
+{
+    /**
+     * @var \Memcached Memcached driver.
+     */
+    private $memcached;
+
+    /**
+     * @var integer Time to live in seconds
+     */
+    private $ttl;
+
+    /**
+     * @var string Key prefix for shared environments.
+     */
+    private $prefix;
+
+    /**
+     * Constructor.
+     *
+     * List of available options:
+     *  * prefix: The prefix to use for the memcached keys in order to avoid collision
+     *  * expiretime: The time to live in seconds
+     *
+     * @param \Memcached $memcached A \Memcached instance
+     * @param array      $options   An associative array of Memcached options
+     *
+     * @throws \InvalidArgumentException When unsupported options are passed
+     */
+    public function __construct(\Memcached $memcached, array $options = array())
+    {
+        $this->memcached = $memcached;
+
+        if ($diff = array_diff(array_keys($options), array('prefix', 'expiretime'))) {
+            throw new \InvalidArgumentException(sprintf(
+                'The following options are not supported "%s"', implode(', ', $diff)
+            ));
+        }
+
+        $this->ttl = isset($options['expiretime']) ? (int) $options['expiretime'] : 86400;
+        $this->prefix = isset($options['prefix']) ? $options['prefix'] : 'sf2s';
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function open($savePath, $sessionName)
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function close()
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function read($sessionId)
+    {
+        return $this->memcached->get($this->prefix.$sessionId) ?: '';
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function write($sessionId, $data)
+    {
+        return $this->memcached->set($this->prefix.$sessionId, $data, time() + $this->ttl);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function destroy($sessionId)
+    {
+        return $this->memcached->delete($this->prefix.$sessionId);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function gc($lifetime)
+    {
+        // not required here because memcached will auto expire the records anyhow.
+        return true;
+    }
+}

vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Storage/Handler/MongoDbSessionHandler.php

@@ -0,0 +1,163 @@
+<?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\Handler;
+
+/**
+ * MongoDB session handler
+ *
+ * @author Markus Bachmann <markus.bachmann@bachi.biz>
+ */
+class MongoDbSessionHandler implements \SessionHandlerInterface
+{
+    /**
+     * @var \Mongo
+     */
+    private $mongo;
+
+    /**
+     * @var \MongoCollection
+     */
+    private $collection;
+
+    /**
+     * @var array
+     */
+    private $options;
+
+    /**
+     * Constructor.
+     *
+     * List of available options:
+     *  * database: The name of the database [required]
+     *  * collection: The name of the collection [required]
+     *  * id_field: The field name for storing the session id [default: _id]
+     *  * data_field: The field name for storing the session data [default: data]
+     *  * time_field: The field name for storing the timestamp [default: time]
+     *
+     * @param \Mongo|\MongoClient $mongo   A MongoClient or Mongo instance
+     * @param array               $options An associative array of field options
+     *
+     * @throws \InvalidArgumentException When MongoClient or Mongo instance not provided
+     * @throws \InvalidArgumentException When "database" or "collection" not provided
+     */
+    public function __construct($mongo, array $options)
+    {
+        if (!($mongo instanceof \MongoClient || $mongo instanceof \Mongo)) {
+            throw new \InvalidArgumentException('MongoClient or Mongo instance required');
+        }
+
+        if (!isset($options['database']) || !isset($options['collection'])) {
+            throw new \InvalidArgumentException('You must provide the "database" and "collection" option for MongoDBSessionHandler');
+        }
+
+        $this->mongo = $mongo;
+
+        $this->options = array_merge(array(
+            'id_field'   => '_id',
+            'data_field' => 'data',
+            'time_field' => 'time',
+        ), $options);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function open($savePath, $sessionName)
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function close()
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function destroy($sessionId)
+    {
+        $this->getCollection()->remove(array(
+            $this->options['id_field'] => $sessionId
+        ));
+
+        return true;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function gc($lifetime)
+    {
+        /* Note: MongoDB 2.2+ supports TTL collections, which may be used in
+         * place of this method by indexing the "time_field" field with an
+         * "expireAfterSeconds" option. Regardless of whether TTL collections
+         * are used, consider indexing this field to make the remove query more
+         * efficient.
+         *
+         * See: http://docs.mongodb.org/manual/tutorial/expire-data/
+         */
+        $time = new \MongoDate(time() - $lifetime);
+
+        $this->getCollection()->remove(array(
+            $this->options['time_field'] => array('$lt' => $time),
+        ));
+
+        return true;
+    }
+
+    /**
+     * {@inheritDoc]
+     */
+    public function write($sessionId, $data)
+    {
+        $this->getCollection()->update(
+            array($this->options['id_field'] => $sessionId),
+            array('$set' => array(
+                $this->options['data_field'] => new \MongoBinData($data, \MongoBinData::BYTE_ARRAY),
+                $this->options['time_field'] => new \MongoDate(),
+            )),
+            array('upsert' => true, 'multiple' => false)
+        );
+
+        return true;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function read($sessionId)
+    {
+        $dbData = $this->getCollection()->findOne(array(
+            $this->options['id_field'] => $sessionId,
+        ));
+
+        return null === $dbData ? '' : $dbData[$this->options['data_field']]->bin;
+    }
+
+    /**
+     * Return a "MongoCollection" instance
+     *
+     * @return \MongoCollection
+     */
+    private function getCollection()
+    {
+        if (null === $this->collection) {
+            $this->collection = $this->mongo->selectCollection($this->options['database'], $this->options['collection']);
+        }
+
+        return $this->collection;
+    }
+}

vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Storage/Handler/NativeFileSessionHandler.php

@@ -0,0 +1,58 @@
+<?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\Handler;
+
+/**
+ * NativeFileSessionHandler.
+ *
+ * Native session handler using PHP's built in file storage.
+ *
+ * @author Drak <drak@zikula.org>
+ */
+class NativeFileSessionHandler extends NativeSessionHandler
+{
+    /**
+     * Constructor.
+     *
+     * @param string $savePath Path of directory to save session files.
+     *                         Default null will leave setting as defined by PHP.
+     *                         '/path', 'N;/path', or 'N;octal-mode;/path
+     *
+     * @see http://php.net/session.configuration.php#ini.session.save-path for further details.
+     *
+     * @throws \InvalidArgumentException On invalid $savePath
+     */
+    public function __construct($savePath = null)
+    {
+        if (null === $savePath) {
+            $savePath = ini_get('session.save_path');
+        }
+
+        $baseDir = $savePath;
+
+        if ($count = substr_count($savePath, ';')) {
+            if ($count > 2) {
+                throw new \InvalidArgumentException(sprintf('Invalid argument $savePath \'%s\'', $savePath));
+            }
+
+            // characters after last ';' are the path
+            $baseDir = ltrim(strrchr($savePath, ';'), ';');
+        }
+
+        if ($baseDir && !is_dir($baseDir)) {
+            mkdir($baseDir, 0777, true);
+        }
+
+        ini_set('session.save_path', $savePath);
+        ini_set('session.save_handler', 'files');
+    }
+}

vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Storage/Handler/NativeSessionHandler.php

@@ -0,0 +1,24 @@
+<?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\Handler;
+
+/**
+ * Adds SessionHandler functionality if available.
+ *
+ * @see http://php.net/sessionhandler
+ */
+
+if (version_compare(phpversion(), '5.4.0', '>=')) {
+    class NativeSessionHandler extends \SessionHandler {}
+} else {
+    class NativeSessionHandler {}
+}

vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Storage/Handler/NullSessionHandler.php

@@ -0,0 +1,72 @@
+<?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\Handler;
+
+/**
+ * NullSessionHandler.
+ *
+ * Can be used in unit testing or in a situations where persisted sessions are not desired.
+ *
+ * @author Drak <drak@zikula.org>
+ *
+ * @api
+ */
+class NullSessionHandler implements \SessionHandlerInterface
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function open($savePath, $sessionName)
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function close()
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function read($sessionId)
+    {
+        return '';
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function write($sessionId, $data)
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function destroy($sessionId)
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function gc($lifetime)
+    {
+        return true;
+    }
+}

vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Storage/Handler/PdoSessionHandler.php

@@ -0,0 +1,243 @@
+<?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\Handler;
+
+/**
+ * PdoSessionHandler.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Michael Williams <michael.williams@funsational.com>
+ */
+class PdoSessionHandler implements \SessionHandlerInterface
+{
+    /**
+     * @var \PDO PDO instance.
+     */
+    private $pdo;
+
+    /**
+     * @var array Database options.
+     */
+    private $dbOptions;
+
+    /**
+     * Constructor.
+     *
+     * List of available options:
+     *  * db_table: The name of the table [required]
+     *  * db_id_col: The column where to store the session id [default: sess_id]
+     *  * db_data_col: The column where to store the session data [default: sess_data]
+     *  * db_time_col: The column where to store the timestamp [default: sess_time]
+     *
+     * @param \PDO  $pdo       A \PDO instance
+     * @param array $dbOptions An associative array of DB options
+     *
+     * @throws \InvalidArgumentException When "db_table" option is not provided
+     */
+    public function __construct(\PDO $pdo, array $dbOptions = array())
+    {
+        if (!array_key_exists('db_table', $dbOptions)) {
+            throw new \InvalidArgumentException('You must provide the "db_table" option for a PdoSessionStorage.');
+        }
+        if (\PDO::ERRMODE_EXCEPTION !== $pdo->getAttribute(\PDO::ATTR_ERRMODE)) {
+            throw new \InvalidArgumentException(sprintf('"%s" requires PDO error mode attribute be set to throw Exceptions (i.e. $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION))', __CLASS__));
+        }
+        $this->pdo = $pdo;
+        $this->dbOptions = array_merge(array(
+            'db_id_col'   => 'sess_id',
+            'db_data_col' => 'sess_data',
+            'db_time_col' => 'sess_time',
+        ), $dbOptions);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function open($path, $name)
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function close()
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function destroy($id)
+    {
+        // get table/column
+        $dbTable = $this->dbOptions['db_table'];
+        $dbIdCol = $this->dbOptions['db_id_col'];
+
+        // delete the record associated with this id
+        $sql = "DELETE FROM $dbTable WHERE $dbIdCol = :id";
+
+        try {
+            $stmt = $this->pdo->prepare($sql);
+            $stmt->bindParam(':id', $id, \PDO::PARAM_STR);
+            $stmt->execute();
+        } catch (\PDOException $e) {
+            throw new \RuntimeException(sprintf('PDOException was thrown when trying to manipulate session data: %s', $e->getMessage()), 0, $e);
+        }
+
+        return true;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function gc($lifetime)
+    {
+        // get table/column
+        $dbTable   = $this->dbOptions['db_table'];
+        $dbTimeCol = $this->dbOptions['db_time_col'];
+
+        // delete the session records that have expired
+        $sql = "DELETE FROM $dbTable WHERE $dbTimeCol < :time";
+
+        try {
+            $stmt = $this->pdo->prepare($sql);
+            $stmt->bindValue(':time', time() - $lifetime, \PDO::PARAM_INT);
+            $stmt->execute();
+        } catch (\PDOException $e) {
+            throw new \RuntimeException(sprintf('PDOException was thrown when trying to manipulate session data: %s', $e->getMessage()), 0, $e);
+        }
+
+        return true;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function read($id)
+    {
+        // get table/columns
+        $dbTable   = $this->dbOptions['db_table'];
+        $dbDataCol = $this->dbOptions['db_data_col'];
+        $dbIdCol   = $this->dbOptions['db_id_col'];
+
+        try {
+            $sql = "SELECT $dbDataCol FROM $dbTable WHERE $dbIdCol = :id";
+
+            $stmt = $this->pdo->prepare($sql);
+            $stmt->bindParam(':id', $id, \PDO::PARAM_STR);
+
+            $stmt->execute();
+            // it is recommended to use fetchAll so that PDO can close the DB cursor
+            // we anyway expect either no rows, or one row with one column. fetchColumn, seems to be buggy #4777
+            $sessionRows = $stmt->fetchAll(\PDO::FETCH_NUM);
+
+            if (count($sessionRows) == 1) {
+                return base64_decode($sessionRows[0][0]);
+            }
+
+            // session does not exist, create it
+            $this->createNewSession($id);
+
+            return '';
+        } catch (\PDOException $e) {
+            throw new \RuntimeException(sprintf('PDOException was thrown when trying to read the session data: %s', $e->getMessage()), 0, $e);
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function write($id, $data)
+    {
+        // get table/column
+        $dbTable   = $this->dbOptions['db_table'];
+        $dbDataCol = $this->dbOptions['db_data_col'];
+        $dbIdCol   = $this->dbOptions['db_id_col'];
+        $dbTimeCol = $this->dbOptions['db_time_col'];
+
+        //session data can contain non binary safe characters so we need to encode it
+        $encoded = base64_encode($data);
+
+        try {
+            $driver = $this->pdo->getAttribute(\PDO::ATTR_DRIVER_NAME);
+
+            if ('mysql' === $driver) {
+                // MySQL would report $stmt->rowCount() = 0 on UPDATE when the data is left unchanged
+                // it could result in calling createNewSession() whereas the session already exists in
+                // the DB which would fail as the id is unique
+                $stmt = $this->pdo->prepare(
+                    "INSERT INTO $dbTable ($dbIdCol, $dbDataCol, $dbTimeCol) VALUES (:id, :data, :time) " .
+                    "ON DUPLICATE KEY UPDATE $dbDataCol = VALUES($dbDataCol), $dbTimeCol = VALUES($dbTimeCol)"
+                );
+                $stmt->bindParam(':id', $id, \PDO::PARAM_STR);
+                $stmt->bindParam(':data', $encoded, \PDO::PARAM_STR);
+                $stmt->bindValue(':time', time(), \PDO::PARAM_INT);
+                $stmt->execute();
+            } elseif ('oci' === $driver) {
+                $stmt = $this->pdo->prepare("MERGE INTO $dbTable USING DUAL ON($dbIdCol = :id) ".
+                       "WHEN NOT MATCHED THEN INSERT ($dbIdCol, $dbDataCol, $dbTimeCol) VALUES (:id, :data, sysdate) " .
+                       "WHEN MATCHED THEN UPDATE SET $dbDataCol = :data WHERE $dbIdCol = :id");
+
+                $stmt->bindParam(':id', $id, \PDO::PARAM_STR);
+                $stmt->bindParam(':data', $encoded, \PDO::PARAM_STR);
+                $stmt->execute();
+            } else {
+                $stmt = $this->pdo->prepare("UPDATE $dbTable SET $dbDataCol = :data, $dbTimeCol = :time WHERE $dbIdCol = :id");
+                $stmt->bindParam(':id', $id, \PDO::PARAM_STR);
+                $stmt->bindParam(':data', $encoded, \PDO::PARAM_STR);
+                $stmt->bindValue(':time', time(), \PDO::PARAM_INT);
+                $stmt->execute();
+
+                if (!$stmt->rowCount()) {
+                    // No session exists in the database to update. This happens when we have called
+                    // session_regenerate_id()
+                    $this->createNewSession($id, $data);
+                }
+            }
+        } catch (\PDOException $e) {
+                throw new \RuntimeException(sprintf('PDOException was thrown when trying to write the session data: %s', $e->getMessage()), 0, $e);
+        }
+
+        return true;
+    }
+
+    /**
+     * Creates a new session with the given $id and $data
+     *
+     * @param string $id
+     * @param string $data
+     *
+     * @return boolean True.
+     */
+    private function createNewSession($id, $data = '')
+    {
+        // get table/column
+        $dbTable   = $this->dbOptions['db_table'];
+        $dbDataCol = $this->dbOptions['db_data_col'];
+        $dbIdCol   = $this->dbOptions['db_id_col'];
+        $dbTimeCol = $this->dbOptions['db_time_col'];
+
+        $sql = "INSERT INTO $dbTable ($dbIdCol, $dbDataCol, $dbTimeCol) VALUES (:id, :data, :time)";
+
+        //session data can contain non binary safe characters so we need to encode it
+        $encoded = base64_encode($data);
+        $stmt = $this->pdo->prepare($sql);
+        $stmt->bindParam(':id', $id, \PDO::PARAM_STR);
+        $stmt->bindParam(':data', $encoded, \PDO::PARAM_STR);
+        $stmt->bindValue(':time', time(), \PDO::PARAM_INT);
+        $stmt->execute();
+
+        return true;
+    }
+}

vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Storage/MetadataBag.php

@@ -0,0 +1,160 @@
+<?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;
+
+/**
+ * Metadata container.
+ *
+ * Adds metadata to the session.
+ *
+ * @author Drak <drak@zikula.org>
+ */
+class MetadataBag implements SessionBagInterface
+{
+    const CREATED = 'c';
+    const UPDATED = 'u';
+    const LIFETIME = 'l';
+
+    /**
+     * @var string
+     */
+    private $name = '__metadata';
+
+    /**
+     * @var string
+     */
+    private $storageKey;
+
+    /**
+     * @var array
+     */
+    protected $meta = array();
+
+    /**
+     * Unix timestamp.
+     *
+     * @var integer
+     */
+    private $lastUsed;
+
+    /**
+     * Constructor.
+     *
+     * @param string $storageKey The key used to store bag in the session.
+     */
+    public function __construct($storageKey = '_sf2_meta')
+    {
+        $this->storageKey = $storageKey;
+        $this->meta = array(self::CREATED => 0, self::UPDATED => 0, self::LIFETIME => 0);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function initialize(array &$array)
+    {
+        $this->meta = &$array;
+
+        if (isset($array[self::CREATED])) {
+            $this->lastUsed = $this->meta[self::UPDATED];
+            $this->meta[self::UPDATED] = time();
+        } else {
+            $this->stampCreated();
+        }
+    }
+
+    /**
+     * Gets the lifetime that the session cookie was set with.
+     *
+     * @return integer
+     */
+    public function getLifetime()
+    {
+        return $this->meta[self::LIFETIME];
+    }
+
+    /**
+     * Stamps a new session's metadata.
+     *
+     * @param integer $lifetime Sets the cookie lifetime for the session cookie. A null value
+     *                          will leave the system settings unchanged, 0 sets the cookie
+     *                          to expire with browser session. Time is in seconds, and is
+     *                          not a Unix timestamp.
+     */
+    public function stampNew($lifetime = null)
+    {
+        $this->stampCreated($lifetime);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getStorageKey()
+    {
+        return $this->storageKey;
+    }
+
+    /**
+     * Gets the created timestamp metadata.
+     *
+     * @return integer Unix timestamp
+     */
+    public function getCreated()
+    {
+        return $this->meta[self::CREATED];
+    }
+
+    /**
+     * Gets the last used metadata.
+     *
+     * @return integer Unix timestamp
+     */
+    public function getLastUsed()
+    {
+        return $this->lastUsed;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        // nothing to do
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Sets name.
+     *
+     * @param string $name
+     */
+    public function setName($name)
+    {
+        $this->name = $name;
+    }
+
+    private function stampCreated($lifetime = null)
+    {
+        $timeStamp = time();
+        $this->meta[self::CREATED] = $this->meta[self::UPDATED] = $this->lastUsed = $timeStamp;
+        $this->meta[self::LIFETIME] = (null === $lifetime) ? ini_get('session.cookie_lifetime') : $lifetime;
+    }
+}

vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Storage/MockArraySessionStorage.php

@@ -0,0 +1,268 @@
+<?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\Storage\MetadataBag;
+
+/**
+ * MockArraySessionStorage mocks the session for unit tests.
+ *
+ * No PHP session is actually started since a session can be initialized
+ * and shutdown only once per PHP execution cycle.
+ *
+ * When doing functional testing, you should use MockFileSessionStorage instead.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Bulat Shakirzyanov <mallluhuct@gmail.com>
+ * @author Drak <drak@zikula.org>
+ */
+class MockArraySessionStorage implements SessionStorageInterface
+{
+    /**
+     * @var string
+     */
+    protected $id = '';
+
+    /**
+     * @var string
+     */
+    protected $name;
+
+    /**
+     * @var boolean
+     */
+    protected $started = false;
+
+    /**
+     * @var boolean
+     */
+    protected $closed = false;
+
+    /**
+     * @var array
+     */
+    protected $data = array();
+
+    /**
+     * @var MetadataBag
+     */
+    protected $metadataBag;
+
+    /**
+     * @var array
+     */
+    protected $bags;
+
+    /**
+     * Constructor.
+     *
+     * @param string      $name    Session name
+     * @param MetadataBag $metaBag MetadataBag instance.
+     */
+    public function __construct($name = 'MOCKSESSID', MetadataBag $metaBag = null)
+    {
+        $this->name = $name;
+        $this->setMetadataBag($metaBag);
+    }
+
+    /**
+     * Sets the session data.
+     *
+     * @param array $array
+     */
+    public function setSessionData(array $array)
+    {
+        $this->data = $array;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function start()
+    {
+        if ($this->started && !$this->closed) {
+            return true;
+        }
+
+        if (empty($this->id)) {
+            $this->id = $this->generateId();
+        }
+
+        $this->loadSession();
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function regenerate($destroy = false, $lifetime = null)
+    {
+        if (!$this->started) {
+            $this->start();
+        }
+
+        $this->metadataBag->stampNew($lifetime);
+        $this->id = $this->generateId();
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getId()
+    {
+        return $this->id;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setId($id)
+    {
+        if ($this->started) {
+            throw new \LogicException('Cannot set session ID after the session has started.');
+        }
+
+        $this->id = $id;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setName($name)
+    {
+        $this->name = $name;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function save()
+    {
+        if (!$this->started || $this->closed) {
+            throw new \RuntimeException("Trying to save a session that was not started yet or was already closed");
+        }
+        // nothing to do since we don't persist the session data
+        $this->closed = false;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        // clear out the bags
+        foreach ($this->bags as $bag) {
+            $bag->clear();
+        }
+
+        // clear out the session
+        $this->data = array();
+
+        // reconnect the bags to the session
+        $this->loadSession();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function registerBag(SessionBagInterface $bag)
+    {
+        $this->bags[$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->started) {
+            $this->start();
+        }
+
+        return $this->bags[$name];
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function isStarted()
+    {
+        return $this->started;
+    }
+
+    /**
+     * Sets the MetadataBag.
+     *
+     * @param MetadataBag $bag
+     */
+    public function setMetadataBag(MetadataBag $bag = null)
+    {
+        if (null === $bag) {
+            $bag = new MetadataBag();
+        }
+
+        $this->metadataBag = $bag;
+    }
+
+    /**
+     * Gets the MetadataBag.
+     *
+     * @return MetadataBag
+     */
+    public function getMetadataBag()
+    {
+        return $this->metadataBag;
+    }
+
+    /**
+     * Generates a session ID.
+     *
+     * This doesn't need to be particularly cryptographically secure since this is just
+     * a mock.
+     *
+     * @return string
+     */
+    protected function generateId()
+    {
+        return sha1(uniqid(mt_rand()));
+    }
+
+    protected function loadSession()
+    {
+        $bags = array_merge($this->bags, array($this->metadataBag));
+
+        foreach ($bags as $bag) {
+            $key = $bag->getStorageKey();
+            $this->data[$key] = isset($this->data[$key]) ? $this->data[$key] : array();
+            $bag->initialize($this->data[$key]);
+        }
+
+        $this->started = true;
+        $this->closed = false;
+    }
+}

vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Storage/MockFileSessionStorage.php

@@ -0,0 +1,138 @@
+<?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;
+
+/**
+ * MockFileSessionStorage is used to mock sessions for
+ * functional testing when done in a single PHP process.
+ *
+ * No PHP session is actually started since a session can be initialized
+ * and shutdown only once per PHP execution cycle and this class does
+ * not pollute any session related globals, including session_*() functions
+ * or session.* PHP ini directives.
+ *
+ * @author Drak <drak@zikula.org>
+ */
+class MockFileSessionStorage extends MockArraySessionStorage
+{
+    /**
+     * @var string
+     */
+    private $savePath;
+
+    /**
+     * Constructor.
+     *
+     * @param string      $savePath Path of directory to save session files.
+     * @param string      $name     Session name.
+     * @param MetadataBag $metaBag  MetadataBag instance.
+     */
+    public function __construct($savePath = null, $name = 'MOCKSESSID', MetadataBag $metaBag = null)
+    {
+        if (null === $savePath) {
+            $savePath = sys_get_temp_dir();
+        }
+
+        if (!is_dir($savePath)) {
+            mkdir($savePath, 0777, true);
+        }
+
+        $this->savePath = $savePath;
+
+        parent::__construct($name, $metaBag);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function start()
+    {
+        if ($this->started) {
+            return true;
+        }
+
+        if (!$this->id) {
+            $this->id = $this->generateId();
+        }
+
+        $this->read();
+
+        $this->started = true;
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function regenerate($destroy = false, $lifetime = null)
+    {
+        if (!$this->started) {
+            $this->start();
+        }
+
+        if ($destroy) {
+            $this->destroy();
+        }
+
+        return parent::regenerate($destroy, $lifetime);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function save()
+    {
+        if (!$this->started) {
+            throw new \RuntimeException("Trying to save a session that was not started yet or was already closed");
+        }
+
+        file_put_contents($this->getFilePath(), serialize($this->data));
+
+        // this is needed for Silex, where the session object is re-used across requests
+        // in functional tests. In Symfony, the container is rebooted, so we don't have
+        // this issue
+        $this->started = false;
+    }
+
+    /**
+     * Deletes a session from persistent storage.
+     * Deliberately leaves session data in memory intact.
+     */
+    private function destroy()
+    {
+        if (is_file($this->getFilePath())) {
+            unlink($this->getFilePath());
+        }
+    }
+
+    /**
+     * Calculate path to file.
+     *
+     * @return string File path
+     */
+    private function getFilePath()
+    {
+        return $this->savePath.'/'.$this->id.'.mocksess';
+    }
+
+    /**
+     * Reads session from storage and loads session.
+     */
+    private function read()
+    {
+        $filePath = $this->getFilePath();
+        $this->data = is_readable($filePath) && is_file($filePath) ? unserialize(file_get_contents($filePath)) : array();
+
+        $this->loadSession();
+    }
+}

vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Storage/NativeSessionStorage.php

@@ -0,0 +1,431 @@
+<?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\Storage\Handler\NativeSessionHandler;
+use Symfony\Component\HttpFoundation\Session\Storage\MetadataBag;
+use Symfony\Component\HttpFoundation\Session\Storage\Proxy\NativeProxy;
+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 <drak@zikula.org>
+ */
+class NativeSessionStorage implements SessionStorageInterface
+{
+    /**
+     * Array of SessionBagInterface
+     *
+     * @var SessionBagInterface[]
+     */
+    protected $bags;
+
+    /**
+     * @var Boolean
+     */
+    protected $started = false;
+
+    /**
+     * @var Boolean
+     */
+    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, "nocache" (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_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);
+
+        if (version_compare(phpversion(), '5.4.0', '>=')) {
+            session_register_shutdown();
+        } else {
+            register_shutdown_function('session_write_close');
+        }
+
+        $this->setMetadataBag($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 && !$this->closed) {
+            return true;
+        }
+
+        if (version_compare(phpversion(), '5.4.0', '>=') && \PHP_SESSION_ACTIVE === session_status()) {
+            throw new \RuntimeException('Failed to start the session: already started by PHP.');
+        }
+
+        if (version_compare(phpversion(), '5.4.0', '<') && isset($_SESSION) && session_id()) {
+            // not 100% fool-proof, but is the most reliable way to determine if a session is active in PHP 5.3
+            throw new \RuntimeException('Failed to start the session: already started by PHP ($_SESSION is set).');
+        }
+
+        if (ini_get('session.use_cookies') && headers_sent($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');
+        }
+
+        $this->loadSession();
+        if (!$this->saveHandler->isWrapper() && !$this->saveHandler->isSessionHandlerInterface()) {
+            // This condition matches only PHP 5.3 with internal save handlers
+            $this->saveHandler->setActive(true);
+        }
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getId()
+    {
+        if (!$this->started) {
+            return ''; // returning empty is consistent with session_id() behaviour
+        }
+
+        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)
+    {
+        if (null !== $lifetime) {
+            ini_set('session.cookie_lifetime', $lifetime);
+        }
+
+        if ($destroy) {
+            $this->metadataBag->stampNew();
+        }
+
+        $ret = session_regenerate_id($destroy);
+
+        // workaround for https://bugs.php.net/bug.php?id=61470 as suggested by David Grudl
+        if ('files' === $this->getSaveHandler()->getSaveHandlerName()) {
+            session_write_close();
+            if (isset($_SESSION)) {
+                $backup = $_SESSION;
+                session_start();
+                $_SESSION = $backup;
+            } else {
+                session_start();
+            }
+        }
+
+        return $ret;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function save()
+    {
+        session_write_close();
+
+        if (!$this->saveHandler->isWrapper() && !$this->saveHandler->isSessionHandlerInterface()) {
+            // This condition matches only PHP 5.3 with internal save handlers
+            $this->saveHandler->setActive(false);
+        }
+
+        $this->closed = true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        // clear out the bags
+        foreach ($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)
+    {
+        $this->bags[$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)
+    {
+        $validOptions = array_flip(array(
+            'cache_limiter', 'cookie_domain', 'cookie_httponly',
+            'cookie_lifetime', 'cookie_path', 'cookie_secure',
+            'entropy_file', 'entropy_length', 'gc_divisor',
+            'gc_maxlifetime', 'gc_probability', 'hash_bits_per_character',
+            'hash_function', 'name', 'referer_check',
+            'serialize_handler', 'use_cookies',
+            'use_only_cookies', 'use_trans_sid', 'upload_progress.enabled',
+            'upload_progress.cleanup', 'upload_progress.prefix', 'upload_progress.name',
+            'upload_progress.freq', 'upload_progress.min-freq', 'url_rewriter.tags',
+        ));
+
+        foreach ($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 = version_compare(phpversion(), '5.4.0', '>=') ?
+                new SessionHandlerProxy(new \SessionHandler()) : new NativeProxy();
+        }
+        $this->saveHandler = $saveHandler;
+
+        if ($this->saveHandler instanceof \SessionHandlerInterface) {
+            if (version_compare(phpversion(), '5.4.0', '>=')) {
+                session_set_save_handler($this->saveHandler, false);
+            } else {
+                session_set_save_handler(
+                    array($this->saveHandler, 'open'),
+                    array($this->saveHandler, 'close'),
+                    array($this->saveHandler, 'read'),
+                    array($this->saveHandler, 'write'),
+                    array($this->saveHandler, 'destroy'),
+                    array($this->saveHandler, 'gc')
+                );
+            }
+        }
+    }
+
+    /**
+     * 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;
+    }
+}

vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Storage/PhpBridgeSessionStorage.php

@@ -0,0 +1,69 @@
+<?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\Storage\MetadataBag;
+use Symfony\Component\HttpFoundation\Session\Storage\Proxy\AbstractProxy;
+use Symfony\Component\HttpFoundation\Session\Storage\Handler\NativeSessionHandler;
+
+/**
+ * Allows session to be started by PHP and managed by Symfony2
+ *
+ * @author Drak <drak@zikula.org>
+ */
+class PhpBridgeSessionStorage extends NativeSessionStorage
+{
+    /**
+     * Constructor.
+     *
+     * @param AbstractProxy|NativeSessionHandler|\SessionHandlerInterface|null $handler
+     * @param MetadataBag                                                      $metaBag MetadataBag
+     */
+    public function __construct($handler = null, MetadataBag $metaBag = null)
+    {
+        $this->setMetadataBag($metaBag);
+        $this->setSaveHandler($handler);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function start()
+    {
+        if ($this->started && !$this->closed) {
+            return true;
+        }
+
+        $this->loadSession();
+        if (!$this->saveHandler->isWrapper() && !$this->saveHandler->isSessionHandlerInterface()) {
+            // This condition matches only PHP 5.3 + internal save handlers
+            $this->saveHandler->setActive(true);
+        }
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        // clear out the bags and nothing else that may be set
+        // since the purpose of this driver is to share a handler
+        foreach ($this->bags as $bag) {
+            $bag->clear();
+        }
+
+        // reconnect the bags to the session
+        $this->loadSession();
+    }
+}

vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Storage/Proxy/AbstractProxy.php

@@ -0,0 +1,154 @@
+<?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\Proxy;
+
+/**
+ * AbstractProxy.
+ *
+ * @author Drak <drak@zikula.org>
+ */
+abstract class AbstractProxy
+{
+    /**
+     * Flag if handler wraps an internal PHP session handler (using \SessionHandler).
+     *
+     * @var boolean
+     */
+    protected $wrapper = false;
+
+    /**
+     * @var boolean
+     */
+    protected $active = false;
+
+    /**
+     * @var string
+     */
+    protected $saveHandlerName;
+
+    /**
+     * Gets the session.save_handler name.
+     *
+     * @return string
+     */
+    public function getSaveHandlerName()
+    {
+        return $this->saveHandlerName;
+    }
+
+    /**
+     * Is this proxy handler and instance of \SessionHandlerInterface.
+     *
+     * @return boolean
+     */
+    public function isSessionHandlerInterface()
+    {
+        return ($this instanceof \SessionHandlerInterface);
+    }
+
+    /**
+     * Returns true if this handler wraps an internal PHP session save handler using \SessionHandler.
+     *
+     * @return Boolean
+     */
+    public function isWrapper()
+    {
+        return $this->wrapper;
+    }
+
+    /**
+     * Has a session started?
+     *
+     * @return Boolean
+     */
+    public function isActive()
+    {
+        if (version_compare(phpversion(), '5.4.0', '>=')) {
+            return $this->active = \PHP_SESSION_ACTIVE === session_status();
+        }
+
+        return $this->active;
+    }
+
+    /**
+     * Sets the active flag.
+     *
+     * Has no effect under PHP 5.4+ as status is detected
+     * automatically in isActive()
+     *
+     * @internal
+     *
+     * @param Boolean $flag
+     *
+     * @throws \LogicException
+     */
+    public function setActive($flag)
+    {
+        if (version_compare(phpversion(), '5.4.0', '>=')) {
+            throw new \LogicException('This method is disabled in PHP 5.4.0+');
+        }
+
+        $this->active = (bool) $flag;
+    }
+
+    /**
+     * Gets the session ID.
+     *
+     * @return string
+     */
+    public function getId()
+    {
+        return session_id();
+    }
+
+    /**
+     * Sets the session ID.
+     *
+     * @param string $id
+     *
+     * @throws \LogicException
+     */
+    public function setId($id)
+    {
+        if ($this->isActive()) {
+            throw new \LogicException('Cannot change the ID of an active session');
+        }
+
+        session_id($id);
+    }
+
+    /**
+     * Gets the session name.
+     *
+     * @return string
+     */
+    public function getName()
+    {
+        return session_name();
+    }
+
+    /**
+     * Sets the session name.
+     *
+     * @param string $name
+     *
+     * @throws \LogicException
+     */
+    public function setName($name)
+    {
+        if ($this->isActive()) {
+            throw new \LogicException('Cannot change the name of an active session');
+        }
+
+        session_name($name);
+    }
+}

vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Storage/Proxy/NativeProxy.php

@@ -0,0 +1,41 @@
+<?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\Proxy;
+
+/**
+ * NativeProxy.
+ *
+ * This proxy is built-in session handlers in PHP 5.3.x
+ *
+ * @author Drak <drak@zikula.org>
+ */
+class NativeProxy extends AbstractProxy
+{
+    /**
+     * Constructor.
+     */
+    public function __construct()
+    {
+        // this makes an educated guess as to what the handler is since it should already be set.
+        $this->saveHandlerName = ini_get('session.save_handler');
+    }
+
+    /**
+     * Returns true if this handler wraps an internal PHP session save handler using \SessionHandler.
+     *
+     * @return Boolean False.
+     */
+    public function isWrapper()
+    {
+        return false;
+    }
+}

vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Storage/Proxy/SessionHandlerProxy.php

@@ -0,0 +1,95 @@
+<?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\Proxy;
+
+/**
+ * SessionHandler proxy.
+ *
+ * @author Drak <drak@zikula.org>
+ */
+class SessionHandlerProxy extends AbstractProxy implements \SessionHandlerInterface
+{
+    /**
+     * @var \SessionHandlerInterface
+     */
+    protected $handler;
+
+    /**
+     * Constructor.
+     *
+     * @param \SessionHandlerInterface $handler
+     */
+    public function __construct(\SessionHandlerInterface $handler)
+    {
+        $this->handler = $handler;
+        $this->wrapper = ($handler instanceof \SessionHandler);
+        $this->saveHandlerName = $this->wrapper ? ini_get('session.save_handler') : 'user';
+    }
+
+    // \SessionHandlerInterface
+
+    /**
+     * {@inheritdoc}
+     */
+    public function open($savePath, $sessionName)
+    {
+        $return = (bool) $this->handler->open($savePath, $sessionName);
+
+        if (true === $return) {
+            $this->active = true;
+        }
+
+        return $return;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function close()
+    {
+        $this->active = false;
+
+        return (bool) $this->handler->close();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function read($id)
+    {
+        return (string) $this->handler->read($id);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function write($id, $data)
+    {
+        return (bool) $this->handler->write($id, $data);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function destroy($id)
+    {
+        return (bool) $this->handler->destroy($id);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function gc($maxlifetime)
+    {
+        return (bool) $this->handler->gc($maxlifetime);
+    }
+}

vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Storage/SessionStorageInterface.php

@@ -0,0 +1,146 @@
+<?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\Storage\MetadataBag;
+
+/**
+ * StorageInterface.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Drak <drak@zikula.org>
+ *
+ * @api
+ */
+interface SessionStorageInterface
+{
+    /**
+     * Starts the session.
+     *
+     * @throws \RuntimeException If something goes wrong starting the session.
+     *
+     * @return boolean True if started.
+     *
+     * @api
+     */
+    public function start();
+
+    /**
+     * Checks if the session is started.
+     *
+     * @return boolean True if started, false otherwise.
+     */
+    public function isStarted();
+
+    /**
+     * Returns the session ID
+     *
+     * @return string The session ID or empty.
+     *
+     * @api
+     */
+    public function getId();
+
+    /**
+     * Sets the session ID
+     *
+     * @param string $id
+     *
+     * @api
+     */
+    public function setId($id);
+
+    /**
+     * Returns the session name
+     *
+     * @return mixed The session name.
+     *
+     * @api
+     */
+    public function getName();
+
+    /**
+     * Sets the session name
+     *
+     * @param string $name
+     *
+     * @api
+     */
+    public function setName($name);
+
+    /**
+     * Regenerates id that represents this storage.
+     *
+     * This method must invoke session_regenerate_id($destroy) unless
+     * this interface is used for a storage object designed for unit
+     * or functional testing where a real PHP session would interfere
+     * with testing.
+     *
+     * Note regenerate+destroy should not clear the session data in memory
+     * only delete the session data from persistent storage.
+     *
+     * @param Boolean $destroy  Destroy session when regenerating?
+     * @param integer $lifetime Sets the cookie lifetime for the session cookie. A null value
+     *                          will leave the system settings unchanged, 0 sets the cookie
+     *                          to expire with browser session. Time is in seconds, and is
+     *                          not a Unix timestamp.
+     *
+     * @return Boolean True if session regenerated, false if error
+     *
+     * @throws \RuntimeException If an error occurs while regenerating this storage
+     *
+     * @api
+     */
+    public function regenerate($destroy = false, $lifetime = null);
+
+    /**
+     * Force the session to be saved and closed.
+     *
+     * This method must invoke session_write_close() unless this interface is
+     * used for a storage object design for unit or functional testing where
+     * a real PHP session would interfere with testing, in which case it
+     * it should actually persist the session data if required.
+     *
+     * @throws \RuntimeException If the session is saved without being started, or if the session
+     *                           is already closed.
+     */
+    public function save();
+
+    /**
+     * Clear all session data in memory.
+     */
+    public function clear();
+
+    /**
+     * Gets a SessionBagInterface by name.
+     *
+     * @param string $name
+     *
+     * @return SessionBagInterface
+     *
+     * @throws \InvalidArgumentException If the bag does not exist
+     */
+    public function getBag($name);
+
+    /**
+     * Registers a SessionBagInterface for use.
+     *
+     * @param SessionBagInterface $bag
+     */
+    public function registerBag(SessionBagInterface $bag);
+
+    /**
+     * @return MetadataBag
+     */
+    public function getMetadataBag();
+}