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

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/symfony/http-foundation/Session/Storage/Handler/MongoDbSessionHandler.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,232 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <[e-mail]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\HttpFoundation\Session\Storage\Handler;
+
+/**
+ * MongoDB session handler.
+ *
+ * @author Markus Bachmann <[e-mail]>
+ */
+class MongoDbSessionHandler implements \SessionHandlerInterface
+{
+    /**
+     * @var \Mongo|\MongoClient|\MongoDB\Client
+     */
+    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]
+     *  * expiry_field: The field name for storing the expiry-timestamp [default: expires_at]
+     *
+     * It is strongly recommended to put an index on the `expiry_field` for
+     * garbage-collection. Alternatively it's possible to automatically expire
+     * the sessions in the database as described below:
+     *
+     * A TTL collections can be used on MongoDB 2.2+ to cleanup expired sessions
+     * automatically. Such an index can for example look like this:
+     *
+     *     db.<session-collection>.ensureIndex(
+     *         { "<expiry-field>": 1 },
+     *         { "expireAfterSeconds": 0 }
+     *     )
+     *
+     * More details on: http://docs.mongodb.org/manual/tutorial/expire-data/
+     *
+     * If you use such an index, you can drop `gc_probability` to 0 since
+     * no garbage-collection is required.
+     *
+     * @param \Mongo|\MongoClient|\MongoDB\Client $mongo   A MongoDB\Client, 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 \MongoDB\Client || $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',
+            'expiry_field' => 'expires_at',
+        ), $options);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function open($savePath, $sessionName)
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function close()
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function destroy($sessionId)
+    {
+        $methodName = $this->mongo instanceof \MongoDB\Client ? 'deleteOne' : 'remove';
+
+        $this->getCollection()->$methodName(array(
+            $this->options['id_field'] => $sessionId,
+        ));
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function gc($maxlifetime)
+    {
+        $methodName = $this->mongo instanceof \MongoDB\Client ? 'deleteOne' : 'remove';
+
+        $this->getCollection()->$methodName(array(
+            $this->options['expiry_field'] => array('$lt' => $this->createDateTime()),
+        ));
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function write($sessionId, $data)
+    {
+        $expiry = $this->createDateTime(time() + (int) ini_get('session.gc_maxlifetime'));
+
+        $fields = array(
+            $this->options['time_field'] => $this->createDateTime(),
+            $this->options['expiry_field'] => $expiry,
+        );
+
+        $options = array('upsert' => true);
+
+        if ($this->mongo instanceof \MongoDB\Client) {
+            $fields[$this->options['data_field']] = new \MongoDB\BSON\Binary($data, \MongoDB\BSON\Binary::TYPE_OLD_BINARY);
+        } else {
+            $fields[$this->options['data_field']] = new \MongoBinData($data, \MongoBinData::BYTE_ARRAY);
+            $options['multiple'] = false;
+        }
+
+        $methodName = $this->mongo instanceof \MongoDB\Client ? 'updateOne' : 'update';
+
+        $this->getCollection()->$methodName(
+            array($this->options['id_field'] => $sessionId),
+            array('$set' => $fields),
+            $options
+        );
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function read($sessionId)
+    {
+        $dbData = $this->getCollection()->findOne(array(
+            $this->options['id_field'] => $sessionId,
+            $this->options['expiry_field'] => array('$gte' => $this->createDateTime()),
+        ));
+
+        if (null === $dbData) {
+            return '';
+        }
+
+        if ($dbData[$this->options['data_field']] instanceof \MongoDB\BSON\Binary) {
+            return $dbData[$this->options['data_field']]->getData();
+        }
+
+        return $dbData[$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;
+    }
+
+    /**
+     * Return a Mongo instance.
+     *
+     * @return \Mongo|\MongoClient|\MongoDB\Client
+     */
+    protected function getMongo()
+    {
+        return $this->mongo;
+    }
+
+    /**
+     * Create a date object using the class appropriate for the current mongo connection.
+     *
+     * Return an instance of a MongoDate or \MongoDB\BSON\UTCDateTime
+     *
+     * @param int $seconds An integer representing UTC seconds since Jan 1 1970.  Defaults to now.
+     *
+     * @return \MongoDate|\MongoDB\BSON\UTCDateTime
+     */
+    private function createDateTime($seconds = null)
+    {
+        if (null === $seconds) {
+            $seconds = time();
+        }
+
+        if ($this->mongo instanceof \MongoDB\Client) {
+            return new \MongoDB\BSON\UTCDateTime($seconds * 1000);
+        }
+
+        return new \MongoDate($seconds);
+    }
+}