first commit

vendor/symfony/http-foundation/Session/Storage/Handler/AbstractSessionHandler.php

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+<?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;
+
+use Symfony\Component\HttpFoundation\Session\SessionUtils;
+
+/**
+ * This abstract session handler provides a generic implementation
+ * of the PHP 7.0 SessionUpdateTimestampHandlerInterface,
+ * enabling strict and lazy session handling.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+abstract class AbstractSessionHandler implements \SessionHandlerInterface, \SessionUpdateTimestampHandlerInterface
+{
+    private string $sessionName;
+    private string $prefetchId;
+    private string $prefetchData;
+    private ?string $newSessionId = null;
+    private string $igbinaryEmptyData;
+
+    public function open(string $savePath, string $sessionName): bool
+    {
+        $this->sessionName = $sessionName;
+        if (!headers_sent() && !\ini_get('session.cache_limiter') && '0' !== \ini_get('session.cache_limiter')) {
+            header(sprintf('Cache-Control: max-age=%d, private, must-revalidate', 60 * (int) \ini_get('session.cache_expire')));
+        }
+
+        return true;
+    }
+
+    abstract protected function doRead(#[\SensitiveParameter] string $sessionId): string;
+
+    abstract protected function doWrite(#[\SensitiveParameter] string $sessionId, string $data): bool;
+
+    abstract protected function doDestroy(#[\SensitiveParameter] string $sessionId): bool;
+
+    public function validateId(#[\SensitiveParameter] string $sessionId): bool
+    {
+        $this->prefetchData = $this->read($sessionId);
+        $this->prefetchId = $sessionId;
+
+        return '' !== $this->prefetchData;
+    }
+
+    public function read(#[\SensitiveParameter] string $sessionId): string
+    {
+        if (isset($this->prefetchId)) {
+            $prefetchId = $this->prefetchId;
+            $prefetchData = $this->prefetchData;
+            unset($this->prefetchId, $this->prefetchData);
+
+            if ($prefetchId === $sessionId || '' === $prefetchData) {
+                $this->newSessionId = '' === $prefetchData ? $sessionId : null;
+
+                return $prefetchData;
+            }
+        }
+
+        $data = $this->doRead($sessionId);
+        $this->newSessionId = '' === $data ? $sessionId : null;
+
+        return $data;
+    }
+
+    public function write(#[\SensitiveParameter] string $sessionId, string $data): bool
+    {
+        // see https://github.com/igbinary/igbinary/issues/146
+        $this->igbinaryEmptyData ??= \function_exists('igbinary_serialize') ? igbinary_serialize([]) : '';
+        if ('' === $data || $this->igbinaryEmptyData === $data) {
+            return $this->destroy($sessionId);
+        }
+        $this->newSessionId = null;
+
+        return $this->doWrite($sessionId, $data);
+    }
+
+    public function destroy(#[\SensitiveParameter] string $sessionId): bool
+    {
+        if (!headers_sent() && filter_var(\ini_get('session.use_cookies'), \FILTER_VALIDATE_BOOL)) {
+            if (!isset($this->sessionName)) {
+                throw new \LogicException(sprintf('Session name cannot be empty, did you forget to call "parent::open()" in "%s"?.', static::class));
+            }
+            $cookie = SessionUtils::popSessionCookie($this->sessionName, $sessionId);
+
+            /*
+             * We send an invalidation Set-Cookie header (zero lifetime)
+             * when either the session was started or a cookie with
+             * the session name was sent by the client (in which case
+             * we know it's invalid as a valid session cookie would've
+             * started the session).
+             */
+            if (null === $cookie || isset($_COOKIE[$this->sessionName])) {
+                $params = session_get_cookie_params();
+                unset($params['lifetime']);
+                setcookie($this->sessionName, '', $params);
+            }
+        }
+
+        return $this->newSessionId === $sessionId || $this->doDestroy($sessionId);
+    }
+}

vendor/symfony/http-foundation/Session/Storage/Handler/IdentityMarshaller.php

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+<?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;
+
+use Symfony\Component\Cache\Marshaller\MarshallerInterface;
+
+/**
+ * @author Ahmed TAILOULOUTE <ahmed.tailouloute@gmail.com>
+ */
+class IdentityMarshaller implements MarshallerInterface
+{
+    public function marshall(array $values, ?array &$failed): array
+    {
+        foreach ($values as $key => $value) {
+            if (!\is_string($value)) {
+                throw new \LogicException(sprintf('%s accepts only string as data.', __METHOD__));
+            }
+        }
+
+        return $values;
+    }
+
+    public function unmarshall(string $value): string
+    {
+        return $value;
+    }
+}

vendor/symfony/http-foundation/Session/Storage/Handler/MarshallingSessionHandler.php

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+<?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;
+
+use Symfony\Component\Cache\Marshaller\MarshallerInterface;
+
+/**
+ * @author Ahmed TAILOULOUTE <ahmed.tailouloute@gmail.com>
+ */
+class MarshallingSessionHandler implements \SessionHandlerInterface, \SessionUpdateTimestampHandlerInterface
+{
+    private AbstractSessionHandler $handler;
+    private MarshallerInterface $marshaller;
+
+    public function __construct(AbstractSessionHandler $handler, MarshallerInterface $marshaller)
+    {
+        $this->handler = $handler;
+        $this->marshaller = $marshaller;
+    }
+
+    public function open(string $savePath, string $name): bool
+    {
+        return $this->handler->open($savePath, $name);
+    }
+
+    public function close(): bool
+    {
+        return $this->handler->close();
+    }
+
+    public function destroy(#[\SensitiveParameter] string $sessionId): bool
+    {
+        return $this->handler->destroy($sessionId);
+    }
+
+    public function gc(int $maxlifetime): int|false
+    {
+        return $this->handler->gc($maxlifetime);
+    }
+
+    public function read(#[\SensitiveParameter] string $sessionId): string
+    {
+        return $this->marshaller->unmarshall($this->handler->read($sessionId));
+    }
+
+    public function write(#[\SensitiveParameter] string $sessionId, string $data): bool
+    {
+        $failed = [];
+        $marshalledData = $this->marshaller->marshall(['data' => $data], $failed);
+
+        if (isset($failed['data'])) {
+            return false;
+        }
+
+        return $this->handler->write($sessionId, $marshalledData['data']);
+    }
+
+    public function validateId(#[\SensitiveParameter] string $sessionId): bool
+    {
+        return $this->handler->validateId($sessionId);
+    }
+
+    public function updateTimestamp(#[\SensitiveParameter] string $sessionId, string $data): bool
+    {
+        return $this->handler->updateTimestamp($sessionId, $data);
+    }
+}

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

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+<?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;
+
+/**
+ * Memcached based session storage handler based on the Memcached class
+ * provided by the PHP memcached extension.
+ *
+ * @see https://php.net/memcached
+ *
+ * @author Drak <drak@zikula.org>
+ */
+class MemcachedSessionHandler extends AbstractSessionHandler
+{
+    private \Memcached $memcached;
+
+    /**
+     * Time to live in seconds.
+     */
+    private int|\Closure|null $ttl;
+
+    /**
+     * Key prefix for shared environments.
+     */
+    private string $prefix;
+
+    /**
+     * Constructor.
+     *
+     * List of available options:
+     *  * prefix: The prefix to use for the memcached keys in order to avoid collision
+     *  * ttl: The time to live in seconds.
+     *
+     * @throws \InvalidArgumentException When unsupported options are passed
+     */
+    public function __construct(\Memcached $memcached, array $options = [])
+    {
+        $this->memcached = $memcached;
+
+        if ($diff = array_diff(array_keys($options), ['prefix', 'expiretime', 'ttl'])) {
+            throw new \InvalidArgumentException(sprintf('The following options are not supported "%s".', implode(', ', $diff)));
+        }
+
+        $this->ttl = $options['expiretime'] ?? $options['ttl'] ?? null;
+        $this->prefix = $options['prefix'] ?? 'sf2s';
+    }
+
+    public function close(): bool
+    {
+        return $this->memcached->quit();
+    }
+
+    protected function doRead(#[\SensitiveParameter] string $sessionId): string
+    {
+        return $this->memcached->get($this->prefix.$sessionId) ?: '';
+    }
+
+    public function updateTimestamp(#[\SensitiveParameter] string $sessionId, string $data): bool
+    {
+        $this->memcached->touch($this->prefix.$sessionId, $this->getCompatibleTtl());
+
+        return true;
+    }
+
+    protected function doWrite(#[\SensitiveParameter] string $sessionId, string $data): bool
+    {
+        return $this->memcached->set($this->prefix.$sessionId, $data, $this->getCompatibleTtl());
+    }
+
+    private function getCompatibleTtl(): int
+    {
+        $ttl = ($this->ttl instanceof \Closure ? ($this->ttl)() : $this->ttl) ?? \ini_get('session.gc_maxlifetime');
+
+        // If the relative TTL that is used exceeds 30 days, memcached will treat the value as Unix time.
+        // We have to convert it to an absolute Unix time at this point, to make sure the TTL is correct.
+        if ($ttl > 60 * 60 * 24 * 30) {
+            $ttl += time();
+        }
+
+        return $ttl;
+    }
+
+    protected function doDestroy(#[\SensitiveParameter] string $sessionId): bool
+    {
+        $result = $this->memcached->delete($this->prefix.$sessionId);
+
+        return $result || \Memcached::RES_NOTFOUND == $this->memcached->getResultCode();
+    }
+
+    public function gc(int $maxlifetime): int|false
+    {
+        // not required here because memcached will auto expire the records anyhow.
+        return 0;
+    }
+
+    /**
+     * Return a Memcached instance.
+     */
+    protected function getMemcached(): \Memcached
+    {
+        return $this->memcached;
+    }
+}

vendor/symfony/http-foundation/Session/Storage/Handler/MigratingSessionHandler.php

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+<?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;
+
+/**
+ * Migrating session handler for migrating from one handler to another. It reads
+ * from the current handler and writes both the current and new ones.
+ *
+ * It ignores errors from the new handler.
+ *
+ * @author Ross Motley <ross.motley@amara.com>
+ * @author Oliver Radwell <oliver.radwell@amara.com>
+ */
+class MigratingSessionHandler implements \SessionHandlerInterface, \SessionUpdateTimestampHandlerInterface
+{
+    private \SessionHandlerInterface&\SessionUpdateTimestampHandlerInterface $currentHandler;
+    private \SessionHandlerInterface&\SessionUpdateTimestampHandlerInterface $writeOnlyHandler;
+
+    public function __construct(\SessionHandlerInterface $currentHandler, \SessionHandlerInterface $writeOnlyHandler)
+    {
+        if (!$currentHandler instanceof \SessionUpdateTimestampHandlerInterface) {
+            $currentHandler = new StrictSessionHandler($currentHandler);
+        }
+        if (!$writeOnlyHandler instanceof \SessionUpdateTimestampHandlerInterface) {
+            $writeOnlyHandler = new StrictSessionHandler($writeOnlyHandler);
+        }
+
+        $this->currentHandler = $currentHandler;
+        $this->writeOnlyHandler = $writeOnlyHandler;
+    }
+
+    public function close(): bool
+    {
+        $result = $this->currentHandler->close();
+        $this->writeOnlyHandler->close();
+
+        return $result;
+    }
+
+    public function destroy(#[\SensitiveParameter] string $sessionId): bool
+    {
+        $result = $this->currentHandler->destroy($sessionId);
+        $this->writeOnlyHandler->destroy($sessionId);
+
+        return $result;
+    }
+
+    public function gc(int $maxlifetime): int|false
+    {
+        $result = $this->currentHandler->gc($maxlifetime);
+        $this->writeOnlyHandler->gc($maxlifetime);
+
+        return $result;
+    }
+
+    public function open(string $savePath, string $sessionName): bool
+    {
+        $result = $this->currentHandler->open($savePath, $sessionName);
+        $this->writeOnlyHandler->open($savePath, $sessionName);
+
+        return $result;
+    }
+
+    public function read(#[\SensitiveParameter] string $sessionId): string
+    {
+        // No reading from new handler until switch-over
+        return $this->currentHandler->read($sessionId);
+    }
+
+    public function write(#[\SensitiveParameter] string $sessionId, string $sessionData): bool
+    {
+        $result = $this->currentHandler->write($sessionId, $sessionData);
+        $this->writeOnlyHandler->write($sessionId, $sessionData);
+
+        return $result;
+    }
+
+    public function validateId(#[\SensitiveParameter] string $sessionId): bool
+    {
+        // No reading from new handler until switch-over
+        return $this->currentHandler->validateId($sessionId);
+    }
+
+    public function updateTimestamp(#[\SensitiveParameter] string $sessionId, string $sessionData): bool
+    {
+        $result = $this->currentHandler->updateTimestamp($sessionId, $sessionData);
+        $this->writeOnlyHandler->updateTimestamp($sessionId, $sessionData);
+
+        return $result;
+    }
+}

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

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+<?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;
+
+use MongoDB\BSON\Binary;
+use MongoDB\BSON\UTCDateTime;
+use MongoDB\Client;
+use MongoDB\Driver\BulkWrite;
+use MongoDB\Driver\Manager;
+use MongoDB\Driver\Query;
+
+/**
+ * Session handler using the MongoDB driver extension.
+ *
+ * @author Markus Bachmann <markus.bachmann@bachi.biz>
+ * @author Jérôme Tamarelle <jerome@tamarelle.net>
+ *
+ * @see https://php.net/mongodb
+ */
+class MongoDbSessionHandler extends AbstractSessionHandler
+{
+    private Manager $manager;
+    private string $namespace;
+    private array $options;
+    private int|\Closure|null $ttl;
+
+    /**
+     * 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]
+     *  * ttl: The time to live in seconds.
+     *
+     * 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>.createIndex(
+     *         { "<expiry-field>": 1 },
+     *         { "expireAfterSeconds": 0 }
+     *     )
+     *
+     * More details on: https://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.
+     *
+     * @throws \InvalidArgumentException When "database" or "collection" not provided
+     */
+    public function __construct(Client|Manager $mongo, array $options)
+    {
+        if (!isset($options['database']) || !isset($options['collection'])) {
+            throw new \InvalidArgumentException('You must provide the "database" and "collection" option for MongoDBSessionHandler.');
+        }
+
+        if ($mongo instanceof Client) {
+            $mongo = $mongo->getManager();
+        }
+
+        $this->manager = $mongo;
+        $this->namespace = $options['database'].'.'.$options['collection'];
+
+        $this->options = array_merge([
+            'id_field' => '_id',
+            'data_field' => 'data',
+            'time_field' => 'time',
+            'expiry_field' => 'expires_at',
+        ], $options);
+        $this->ttl = $this->options['ttl'] ?? null;
+    }
+
+    public function close(): bool
+    {
+        return true;
+    }
+
+    protected function doDestroy(#[\SensitiveParameter] string $sessionId): bool
+    {
+        $write = new BulkWrite();
+        $write->delete(
+            [$this->options['id_field'] => $sessionId],
+            ['limit' => 1]
+        );
+
+        $this->manager->executeBulkWrite($this->namespace, $write);
+
+        return true;
+    }
+
+    public function gc(int $maxlifetime): int|false
+    {
+        $write = new BulkWrite();
+        $write->delete(
+            [$this->options['expiry_field'] => ['$lt' => $this->getUTCDateTime()]],
+        );
+        $result = $this->manager->executeBulkWrite($this->namespace, $write);
+
+        return $result->getDeletedCount() ?? false;
+    }
+
+    protected function doWrite(#[\SensitiveParameter] string $sessionId, string $data): bool
+    {
+        $ttl = ($this->ttl instanceof \Closure ? ($this->ttl)() : $this->ttl) ?? \ini_get('session.gc_maxlifetime');
+        $expiry = $this->getUTCDateTime($ttl);
+
+        $fields = [
+            $this->options['time_field'] => $this->getUTCDateTime(),
+            $this->options['expiry_field'] => $expiry,
+            $this->options['data_field'] => new Binary($data, Binary::TYPE_GENERIC),
+        ];
+
+        $write = new BulkWrite();
+        $write->update(
+            [$this->options['id_field'] => $sessionId],
+            ['$set' => $fields],
+            ['upsert' => true]
+        );
+
+        $this->manager->executeBulkWrite($this->namespace, $write);
+
+        return true;
+    }
+
+    public function updateTimestamp(#[\SensitiveParameter] string $sessionId, string $data): bool
+    {
+        $ttl = ($this->ttl instanceof \Closure ? ($this->ttl)() : $this->ttl) ?? \ini_get('session.gc_maxlifetime');
+        $expiry = $this->getUTCDateTime($ttl);
+
+        $write = new BulkWrite();
+        $write->update(
+            [$this->options['id_field'] => $sessionId],
+            ['$set' => [
+                $this->options['time_field'] => $this->getUTCDateTime(),
+                $this->options['expiry_field'] => $expiry,
+            ]],
+            ['multi' => false],
+        );
+
+        $this->manager->executeBulkWrite($this->namespace, $write);
+
+        return true;
+    }
+
+    protected function doRead(#[\SensitiveParameter] string $sessionId): string
+    {
+        $cursor = $this->manager->executeQuery($this->namespace, new Query([
+            $this->options['id_field'] => $sessionId,
+            $this->options['expiry_field'] => ['$gte' => $this->getUTCDateTime()],
+        ], [
+            'projection' => [
+                '_id' => false,
+                $this->options['data_field'] => true,
+            ],
+            'limit' => 1,
+        ]));
+
+        foreach ($cursor as $document) {
+            return (string) $document->{$this->options['data_field']} ?? '';
+        }
+
+        // Not found
+        return '';
+    }
+
+    private function getUTCDateTime(int $additionalSeconds = 0): UTCDateTime
+    {
+        return new UTCDateTime((time() + $additionalSeconds) * 1000);
+    }
+}

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

@@ -0,0 +1,55 @@
+<?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;
+
+/**
+ * Native session handler using PHP's built in file storage.
+ *
+ * @author Drak <drak@zikula.org>
+ */
+class NativeFileSessionHandler extends \SessionHandler
+{
+    /**
+     * @param string|null $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 https://php.net/session.configuration#ini.session.save-path for further details.
+     *
+     * @throws \InvalidArgumentException On invalid $savePath
+     * @throws \RuntimeException         When failing to create the save directory
+     */
+    public function __construct(?string $savePath = null)
+    {
+        $baseDir = $savePath ??= \ini_get('session.save_path');
+
+        if ($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($baseDir, 0777, true) && !is_dir($baseDir)) {
+            throw new \RuntimeException(sprintf('Session Storage was not able to create directory "%s".', $baseDir));
+        }
+
+        if ($savePath !== \ini_get('session.save_path')) {
+            ini_set('session.save_path', $savePath);
+        }
+        if ('files' !== \ini_get('session.save_handler')) {
+            ini_set('session.save_handler', 'files');
+        }
+    }
+}

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

@@ -0,0 +1,55 @@
+<?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;
+
+/**
+ * Can be used in unit testing or in a situations where persisted sessions are not desired.
+ *
+ * @author Drak <drak@zikula.org>
+ */
+class NullSessionHandler extends AbstractSessionHandler
+{
+    public function close(): bool
+    {
+        return true;
+    }
+
+    public function validateId(#[\SensitiveParameter] string $sessionId): bool
+    {
+        return true;
+    }
+
+    protected function doRead(#[\SensitiveParameter] string $sessionId): string
+    {
+        return '';
+    }
+
+    public function updateTimestamp(#[\SensitiveParameter] string $sessionId, string $data): bool
+    {
+        return true;
+    }
+
+    protected function doWrite(#[\SensitiveParameter] string $sessionId, string $data): bool
+    {
+        return true;
+    }
+
+    protected function doDestroy(#[\SensitiveParameter] string $sessionId): bool
+    {
+        return true;
+    }
+
+    public function gc(int $maxlifetime): int|false
+    {
+        return 0;
+    }
+}

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

@@ -0,0 +1,901 @@
+<?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;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\DBAL\Types\Types;
+
+/**
+ * Session handler using a PDO connection to read and write data.
+ *
+ * It works with MySQL, PostgreSQL, Oracle, SQL Server and SQLite and implements
+ * different locking strategies to handle concurrent access to the same session.
+ * Locking is necessary to prevent loss of data due to race conditions and to keep
+ * the session data consistent between read() and write(). With locking, requests
+ * for the same session will wait until the other one finished writing. For this
+ * reason it's best practice to close a session as early as possible to improve
+ * concurrency. PHPs internal files session handler also implements locking.
+ *
+ * Attention: Since SQLite does not support row level locks but locks the whole database,
+ * it means only one session can be accessed at a time. Even different sessions would wait
+ * for another to finish. So saving session in SQLite should only be considered for
+ * development or prototypes.
+ *
+ * Session data is a binary string that can contain non-printable characters like the null byte.
+ * For this reason it must be saved in a binary column in the database like BLOB in MySQL.
+ * Saving it in a character column could corrupt the data. You can use createTable()
+ * to initialize a correctly defined table.
+ *
+ * @see https://php.net/sessionhandlerinterface
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Michael Williams <michael.williams@funsational.com>
+ * @author Tobias Schultze <http://tobion.de>
+ */
+class PdoSessionHandler extends AbstractSessionHandler
+{
+    /**
+     * No locking is done. This means sessions are prone to loss of data due to
+     * race conditions of concurrent requests to the same session. The last session
+     * write will win in this case. It might be useful when you implement your own
+     * logic to deal with this like an optimistic approach.
+     */
+    public const LOCK_NONE = 0;
+
+    /**
+     * Creates an application-level lock on a session. The disadvantage is that the
+     * lock is not enforced by the database and thus other, unaware parts of the
+     * application could still concurrently modify the session. The advantage is it
+     * does not require a transaction.
+     * This mode is not available for SQLite and not yet implemented for oci and sqlsrv.
+     */
+    public const LOCK_ADVISORY = 1;
+
+    /**
+     * Issues a real row lock. Since it uses a transaction between opening and
+     * closing a session, you have to be careful when you use same database connection
+     * that you also use for your application logic. This mode is the default because
+     * it's the only reliable solution across DBMSs.
+     */
+    public const LOCK_TRANSACTIONAL = 2;
+
+    private \PDO $pdo;
+
+    /**
+     * DSN string or null for session.save_path or false when lazy connection disabled.
+     */
+    private string|false|null $dsn = false;
+
+    private string $driver;
+    private string $table = 'sessions';
+    private string $idCol = 'sess_id';
+    private string $dataCol = 'sess_data';
+    private string $lifetimeCol = 'sess_lifetime';
+    private string $timeCol = 'sess_time';
+
+    /**
+     * Time to live in seconds.
+     */
+    private int|\Closure|null $ttl;
+
+    /**
+     * Username when lazy-connect.
+     */
+    private ?string $username = null;
+
+    /**
+     * Password when lazy-connect.
+     */
+    private ?string $password = null;
+
+    /**
+     * Connection options when lazy-connect.
+     */
+    private array $connectionOptions = [];
+
+    /**
+     * The strategy for locking, see constants.
+     */
+    private int $lockMode = self::LOCK_TRANSACTIONAL;
+
+    /**
+     * It's an array to support multiple reads before closing which is manual, non-standard usage.
+     *
+     * @var \PDOStatement[] An array of statements to release advisory locks
+     */
+    private array $unlockStatements = [];
+
+    /**
+     * True when the current session exists but expired according to session.gc_maxlifetime.
+     */
+    private bool $sessionExpired = false;
+
+    /**
+     * Whether a transaction is active.
+     */
+    private bool $inTransaction = false;
+
+    /**
+     * Whether gc() has been called.
+     */
+    private bool $gcCalled = false;
+
+    /**
+     * You can either pass an existing database connection as PDO instance or
+     * pass a DSN string that will be used to lazy-connect to the database
+     * when the session is actually used. Furthermore it's possible to pass null
+     * which will then use the session.save_path ini setting as PDO DSN parameter.
+     *
+     * List of available options:
+     *  * db_table: The name of the table [default: sessions]
+     *  * 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_lifetime_col: The column where to store the lifetime [default: sess_lifetime]
+     *  * db_time_col: The column where to store the timestamp [default: sess_time]
+     *  * db_username: The username when lazy-connect [default: '']
+     *  * db_password: The password when lazy-connect [default: '']
+     *  * db_connection_options: An array of driver-specific connection options [default: []]
+     *  * lock_mode: The strategy for locking, see constants [default: LOCK_TRANSACTIONAL]
+     *  * ttl: The time to live in seconds.
+     *
+     * @param \PDO|string|null $pdoOrDsn A \PDO instance or DSN string or URL string or null
+     *
+     * @throws \InvalidArgumentException When PDO error mode is not PDO::ERRMODE_EXCEPTION
+     */
+    public function __construct(#[\SensitiveParameter] \PDO|string|null $pdoOrDsn = null, #[\SensitiveParameter] array $options = [])
+    {
+        if ($pdoOrDsn instanceof \PDO) {
+            if (\PDO::ERRMODE_EXCEPTION !== $pdoOrDsn->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 = $pdoOrDsn;
+            $this->driver = $this->pdo->getAttribute(\PDO::ATTR_DRIVER_NAME);
+        } elseif (\is_string($pdoOrDsn) && str_contains($pdoOrDsn, '://')) {
+            $this->dsn = $this->buildDsnFromUrl($pdoOrDsn);
+        } else {
+            $this->dsn = $pdoOrDsn;
+        }
+
+        $this->table = $options['db_table'] ?? $this->table;
+        $this->idCol = $options['db_id_col'] ?? $this->idCol;
+        $this->dataCol = $options['db_data_col'] ?? $this->dataCol;
+        $this->lifetimeCol = $options['db_lifetime_col'] ?? $this->lifetimeCol;
+        $this->timeCol = $options['db_time_col'] ?? $this->timeCol;
+        $this->username = $options['db_username'] ?? $this->username;
+        $this->password = $options['db_password'] ?? $this->password;
+        $this->connectionOptions = $options['db_connection_options'] ?? $this->connectionOptions;
+        $this->lockMode = $options['lock_mode'] ?? $this->lockMode;
+        $this->ttl = $options['ttl'] ?? null;
+    }
+
+    /**
+     * Adds the Table to the Schema if it doesn't exist.
+     */
+    public function configureSchema(Schema $schema, ?\Closure $isSameDatabase = null): void
+    {
+        if ($schema->hasTable($this->table) || ($isSameDatabase && !$isSameDatabase($this->getConnection()->exec(...)))) {
+            return;
+        }
+
+        $table = $schema->createTable($this->table);
+        switch ($this->driver) {
+            case 'mysql':
+                $table->addColumn($this->idCol, Types::BINARY)->setLength(128)->setNotnull(true);
+                $table->addColumn($this->dataCol, Types::BLOB)->setNotnull(true);
+                $table->addColumn($this->lifetimeCol, Types::INTEGER)->setUnsigned(true)->setNotnull(true);
+                $table->addColumn($this->timeCol, Types::INTEGER)->setUnsigned(true)->setNotnull(true);
+                $table->addOption('collate', 'utf8mb4_bin');
+                $table->addOption('engine', 'InnoDB');
+                break;
+            case 'sqlite':
+                $table->addColumn($this->idCol, Types::TEXT)->setNotnull(true);
+                $table->addColumn($this->dataCol, Types::BLOB)->setNotnull(true);
+                $table->addColumn($this->lifetimeCol, Types::INTEGER)->setNotnull(true);
+                $table->addColumn($this->timeCol, Types::INTEGER)->setNotnull(true);
+                break;
+            case 'pgsql':
+                $table->addColumn($this->idCol, Types::STRING)->setLength(128)->setNotnull(true);
+                $table->addColumn($this->dataCol, Types::BINARY)->setNotnull(true);
+                $table->addColumn($this->lifetimeCol, Types::INTEGER)->setNotnull(true);
+                $table->addColumn($this->timeCol, Types::INTEGER)->setNotnull(true);
+                break;
+            case 'oci':
+                $table->addColumn($this->idCol, Types::STRING)->setLength(128)->setNotnull(true);
+                $table->addColumn($this->dataCol, Types::BLOB)->setNotnull(true);
+                $table->addColumn($this->lifetimeCol, Types::INTEGER)->setNotnull(true);
+                $table->addColumn($this->timeCol, Types::INTEGER)->setNotnull(true);
+                break;
+            case 'sqlsrv':
+                $table->addColumn($this->idCol, Types::TEXT)->setLength(128)->setNotnull(true);
+                $table->addColumn($this->dataCol, Types::BLOB)->setNotnull(true);
+                $table->addColumn($this->lifetimeCol, Types::INTEGER)->setUnsigned(true)->setNotnull(true);
+                $table->addColumn($this->timeCol, Types::INTEGER)->setUnsigned(true)->setNotnull(true);
+                break;
+            default:
+                throw new \DomainException(sprintf('Creating the session table is currently not implemented for PDO driver "%s".', $this->driver));
+        }
+        $table->setPrimaryKey([$this->idCol]);
+        $table->addIndex([$this->lifetimeCol], $this->lifetimeCol.'_idx');
+    }
+
+    /**
+     * Creates the table to store sessions which can be called once for setup.
+     *
+     * Session ID is saved in a column of maximum length 128 because that is enough even
+     * for a 512 bit configured session.hash_function like Whirlpool. Session data is
+     * saved in a BLOB. One could also use a shorter inlined varbinary column
+     * if one was sure the data fits into it.
+     *
+     * @return void
+     *
+     * @throws \PDOException    When the table already exists
+     * @throws \DomainException When an unsupported PDO driver is used
+     */
+    public function createTable()
+    {
+        // connect if we are not yet
+        $this->getConnection();
+
+        $sql = match ($this->driver) {
+            // We use varbinary for the ID column because it prevents unwanted conversions:
+            // - character set conversions between server and client
+            // - trailing space removal
+            // - case-insensitivity
+            // - language processing like é == e
+            'mysql' => "CREATE TABLE $this->table ($this->idCol VARBINARY(128) NOT NULL PRIMARY KEY, $this->dataCol BLOB NOT NULL, $this->lifetimeCol INTEGER UNSIGNED NOT NULL, $this->timeCol INTEGER UNSIGNED NOT NULL) COLLATE utf8mb4_bin, ENGINE = InnoDB",
+            'sqlite' => "CREATE TABLE $this->table ($this->idCol TEXT NOT NULL PRIMARY KEY, $this->dataCol BLOB NOT NULL, $this->lifetimeCol INTEGER NOT NULL, $this->timeCol INTEGER NOT NULL)",
+            'pgsql' => "CREATE TABLE $this->table ($this->idCol VARCHAR(128) NOT NULL PRIMARY KEY, $this->dataCol BYTEA NOT NULL, $this->lifetimeCol INTEGER NOT NULL, $this->timeCol INTEGER NOT NULL)",
+            'oci' => "CREATE TABLE $this->table ($this->idCol VARCHAR2(128) NOT NULL PRIMARY KEY, $this->dataCol BLOB NOT NULL, $this->lifetimeCol INTEGER NOT NULL, $this->timeCol INTEGER NOT NULL)",
+            'sqlsrv' => "CREATE TABLE $this->table ($this->idCol VARCHAR(128) NOT NULL PRIMARY KEY, $this->dataCol VARBINARY(MAX) NOT NULL, $this->lifetimeCol INTEGER NOT NULL, $this->timeCol INTEGER NOT NULL)",
+            default => throw new \DomainException(sprintf('Creating the session table is currently not implemented for PDO driver "%s".', $this->driver)),
+        };
+
+        try {
+            $this->pdo->exec($sql);
+            $this->pdo->exec("CREATE INDEX {$this->lifetimeCol}_idx ON $this->table ($this->lifetimeCol)");
+        } catch (\PDOException $e) {
+            $this->rollback();
+
+            throw $e;
+        }
+    }
+
+    /**
+     * Returns true when the current session exists but expired according to session.gc_maxlifetime.
+     *
+     * Can be used to distinguish between a new session and one that expired due to inactivity.
+     */
+    public function isSessionExpired(): bool
+    {
+        return $this->sessionExpired;
+    }
+
+    public function open(string $savePath, string $sessionName): bool
+    {
+        $this->sessionExpired = false;
+
+        if (!isset($this->pdo)) {
+            $this->connect($this->dsn ?: $savePath);
+        }
+
+        return parent::open($savePath, $sessionName);
+    }
+
+    public function read(#[\SensitiveParameter] string $sessionId): string
+    {
+        try {
+            return parent::read($sessionId);
+        } catch (\PDOException $e) {
+            $this->rollback();
+
+            throw $e;
+        }
+    }
+
+    public function gc(int $maxlifetime): int|false
+    {
+        // We delay gc() to close() so that it is executed outside the transactional and blocking read-write process.
+        // This way, pruning expired sessions does not block them from being started while the current session is used.
+        $this->gcCalled = true;
+
+        return 0;
+    }
+
+    protected function doDestroy(#[\SensitiveParameter] string $sessionId): bool
+    {
+        // delete the record associated with this id
+        $sql = "DELETE FROM $this->table WHERE $this->idCol = :id";
+
+        try {
+            $stmt = $this->pdo->prepare($sql);
+            $stmt->bindParam(':id', $sessionId, \PDO::PARAM_STR);
+            $stmt->execute();
+        } catch (\PDOException $e) {
+            $this->rollback();
+
+            throw $e;
+        }
+
+        return true;
+    }
+
+    protected function doWrite(#[\SensitiveParameter] string $sessionId, string $data): bool
+    {
+        $maxlifetime = (int) (($this->ttl instanceof \Closure ? ($this->ttl)() : $this->ttl) ?? \ini_get('session.gc_maxlifetime'));
+
+        try {
+            // We use a single MERGE SQL query when supported by the database.
+            $mergeStmt = $this->getMergeStatement($sessionId, $data, $maxlifetime);
+            if (null !== $mergeStmt) {
+                $mergeStmt->execute();
+
+                return true;
+            }
+
+            $updateStmt = $this->getUpdateStatement($sessionId, $data, $maxlifetime);
+            $updateStmt->execute();
+
+            // When MERGE is not supported, like in Postgres < 9.5, we have to use this approach that can result in
+            // duplicate key errors when the same session is written simultaneously (given the LOCK_NONE behavior).
+            // We can just catch such an error and re-execute the update. This is similar to a serializable
+            // transaction with retry logic on serialization failures but without the overhead and without possible
+            // false positives due to longer gap locking.
+            if (!$updateStmt->rowCount()) {
+                try {
+                    $insertStmt = $this->getInsertStatement($sessionId, $data, $maxlifetime);
+                    $insertStmt->execute();
+                } catch (\PDOException $e) {
+                    // Handle integrity violation SQLSTATE 23000 (or a subclass like 23505 in Postgres) for duplicate keys
+                    if (str_starts_with($e->getCode(), '23')) {
+                        $updateStmt->execute();
+                    } else {
+                        throw $e;
+                    }
+                }
+            }
+        } catch (\PDOException $e) {
+            $this->rollback();
+
+            throw $e;
+        }
+
+        return true;
+    }
+
+    public function updateTimestamp(#[\SensitiveParameter] string $sessionId, string $data): bool
+    {
+        $expiry = time() + (int) (($this->ttl instanceof \Closure ? ($this->ttl)() : $this->ttl) ?? \ini_get('session.gc_maxlifetime'));
+
+        try {
+            $updateStmt = $this->pdo->prepare(
+                "UPDATE $this->table SET $this->lifetimeCol = :expiry, $this->timeCol = :time WHERE $this->idCol = :id"
+            );
+            $updateStmt->bindValue(':id', $sessionId, \PDO::PARAM_STR);
+            $updateStmt->bindValue(':expiry', $expiry, \PDO::PARAM_INT);
+            $updateStmt->bindValue(':time', time(), \PDO::PARAM_INT);
+            $updateStmt->execute();
+        } catch (\PDOException $e) {
+            $this->rollback();
+
+            throw $e;
+        }
+
+        return true;
+    }
+
+    public function close(): bool
+    {
+        $this->commit();
+
+        while ($unlockStmt = array_shift($this->unlockStatements)) {
+            $unlockStmt->execute();
+        }
+
+        if ($this->gcCalled) {
+            $this->gcCalled = false;
+
+            // delete the session records that have expired
+            $sql = "DELETE FROM $this->table WHERE $this->lifetimeCol < :time";
+            $stmt = $this->pdo->prepare($sql);
+            $stmt->bindValue(':time', time(), \PDO::PARAM_INT);
+            $stmt->execute();
+        }
+
+        if (false !== $this->dsn) {
+            unset($this->pdo, $this->driver); // only close lazy-connection
+        }
+
+        return true;
+    }
+
+    /**
+     * Lazy-connects to the database.
+     */
+    private function connect(#[\SensitiveParameter] string $dsn): void
+    {
+        $this->pdo = new \PDO($dsn, $this->username, $this->password, $this->connectionOptions);
+        $this->pdo->setAttribute(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION);
+        $this->driver = $this->pdo->getAttribute(\PDO::ATTR_DRIVER_NAME);
+    }
+
+    /**
+     * Builds a PDO DSN from a URL-like connection string.
+     *
+     * @todo implement missing support for oci DSN (which look totally different from other PDO ones)
+     */
+    private function buildDsnFromUrl(#[\SensitiveParameter] string $dsnOrUrl): string
+    {
+        // (pdo_)?sqlite3?:///... => (pdo_)?sqlite3?://localhost/... or else the URL will be invalid
+        $url = preg_replace('#^((?:pdo_)?sqlite3?):///#', '$1://localhost/', $dsnOrUrl);
+
+        $params = parse_url($url);
+
+        if (false === $params) {
+            return $dsnOrUrl; // If the URL is not valid, let's assume it might be a DSN already.
+        }
+
+        $params = array_map('rawurldecode', $params);
+
+        // Override the default username and password. Values passed through options will still win over these in the constructor.
+        if (isset($params['user'])) {
+            $this->username = $params['user'];
+        }
+
+        if (isset($params['pass'])) {
+            $this->password = $params['pass'];
+        }
+
+        if (!isset($params['scheme'])) {
+            throw new \InvalidArgumentException('URLs without scheme are not supported to configure the PdoSessionHandler.');
+        }
+
+        $driverAliasMap = [
+            'mssql' => 'sqlsrv',
+            'mysql2' => 'mysql', // Amazon RDS, for some weird reason
+            'postgres' => 'pgsql',
+            'postgresql' => 'pgsql',
+            'sqlite3' => 'sqlite',
+        ];
+
+        $driver = $driverAliasMap[$params['scheme']] ?? $params['scheme'];
+
+        // Doctrine DBAL supports passing its internal pdo_* driver names directly too (allowing both dashes and underscores). This allows supporting the same here.
+        if (str_starts_with($driver, 'pdo_') || str_starts_with($driver, 'pdo-')) {
+            $driver = substr($driver, 4);
+        }
+
+        $dsn = null;
+        switch ($driver) {
+            case 'mysql':
+                $dsn = 'mysql:';
+                if ('' !== ($params['query'] ?? '')) {
+                    $queryParams = [];
+                    parse_str($params['query'], $queryParams);
+                    if ('' !== ($queryParams['charset'] ?? '')) {
+                        $dsn .= 'charset='.$queryParams['charset'].';';
+                    }
+
+                    if ('' !== ($queryParams['unix_socket'] ?? '')) {
+                        $dsn .= 'unix_socket='.$queryParams['unix_socket'].';';
+
+                        if (isset($params['path'])) {
+                            $dbName = substr($params['path'], 1); // Remove the leading slash
+                            $dsn .= 'dbname='.$dbName.';';
+                        }
+
+                        return $dsn;
+                    }
+                }
+                // If "unix_socket" is not in the query, we continue with the same process as pgsql
+                // no break
+            case 'pgsql':
+                $dsn ??= 'pgsql:';
+
+                if (isset($params['host']) && '' !== $params['host']) {
+                    $dsn .= 'host='.$params['host'].';';
+                }
+
+                if (isset($params['port']) && '' !== $params['port']) {
+                    $dsn .= 'port='.$params['port'].';';
+                }
+
+                if (isset($params['path'])) {
+                    $dbName = substr($params['path'], 1); // Remove the leading slash
+                    $dsn .= 'dbname='.$dbName.';';
+                }
+
+                return $dsn;
+
+            case 'sqlite':
+                return 'sqlite:'.substr($params['path'], 1);
+
+            case 'sqlsrv':
+                $dsn = 'sqlsrv:server=';
+
+                if (isset($params['host'])) {
+                    $dsn .= $params['host'];
+                }
+
+                if (isset($params['port']) && '' !== $params['port']) {
+                    $dsn .= ','.$params['port'];
+                }
+
+                if (isset($params['path'])) {
+                    $dbName = substr($params['path'], 1); // Remove the leading slash
+                    $dsn .= ';Database='.$dbName;
+                }
+
+                return $dsn;
+
+            default:
+                throw new \InvalidArgumentException(sprintf('The scheme "%s" is not supported by the PdoSessionHandler URL configuration. Pass a PDO DSN directly.', $params['scheme']));
+        }
+    }
+
+    /**
+     * Helper method to begin a transaction.
+     *
+     * Since SQLite does not support row level locks, we have to acquire a reserved lock
+     * on the database immediately. Because of https://bugs.php.net/42766 we have to create
+     * such a transaction manually which also means we cannot use PDO::commit or
+     * PDO::rollback or PDO::inTransaction for SQLite.
+     *
+     * Also MySQLs default isolation, REPEATABLE READ, causes deadlock for different sessions
+     * due to https://percona.com/blog/2013/12/12/one-more-innodb-gap-lock-to-avoid/ .
+     * So we change it to READ COMMITTED.
+     */
+    private function beginTransaction(): void
+    {
+        if (!$this->inTransaction) {
+            if ('sqlite' === $this->driver) {
+                $this->pdo->exec('BEGIN IMMEDIATE TRANSACTION');
+            } else {
+                if ('mysql' === $this->driver) {
+                    $this->pdo->exec('SET TRANSACTION ISOLATION LEVEL READ COMMITTED');
+                }
+                $this->pdo->beginTransaction();
+            }
+            $this->inTransaction = true;
+        }
+    }
+
+    /**
+     * Helper method to commit a transaction.
+     */
+    private function commit(): void
+    {
+        if ($this->inTransaction) {
+            try {
+                // commit read-write transaction which also releases the lock
+                if ('sqlite' === $this->driver) {
+                    $this->pdo->exec('COMMIT');
+                } else {
+                    $this->pdo->commit();
+                }
+                $this->inTransaction = false;
+            } catch (\PDOException $e) {
+                $this->rollback();
+
+                throw $e;
+            }
+        }
+    }
+
+    /**
+     * Helper method to rollback a transaction.
+     */
+    private function rollback(): void
+    {
+        // We only need to rollback if we are in a transaction. Otherwise the resulting
+        // error would hide the real problem why rollback was called. We might not be
+        // in a transaction when not using the transactional locking behavior or when
+        // two callbacks (e.g. destroy and write) are invoked that both fail.
+        if ($this->inTransaction) {
+            if ('sqlite' === $this->driver) {
+                $this->pdo->exec('ROLLBACK');
+            } else {
+                $this->pdo->rollBack();
+            }
+            $this->inTransaction = false;
+        }
+    }
+
+    /**
+     * Reads the session data in respect to the different locking strategies.
+     *
+     * We need to make sure we do not return session data that is already considered garbage according
+     * to the session.gc_maxlifetime setting because gc() is called after read() and only sometimes.
+     */
+    protected function doRead(#[\SensitiveParameter] string $sessionId): string
+    {
+        if (self::LOCK_ADVISORY === $this->lockMode) {
+            $this->unlockStatements[] = $this->doAdvisoryLock($sessionId);
+        }
+
+        $selectSql = $this->getSelectSql();
+        $selectStmt = $this->pdo->prepare($selectSql);
+        $selectStmt->bindParam(':id', $sessionId, \PDO::PARAM_STR);
+        $insertStmt = null;
+
+        while (true) {
+            $selectStmt->execute();
+            $sessionRows = $selectStmt->fetchAll(\PDO::FETCH_NUM);
+
+            if ($sessionRows) {
+                $expiry = (int) $sessionRows[0][1];
+
+                if ($expiry < time()) {
+                    $this->sessionExpired = true;
+
+                    return '';
+                }
+
+                return \is_resource($sessionRows[0][0]) ? stream_get_contents($sessionRows[0][0]) : $sessionRows[0][0];
+            }
+
+            if (null !== $insertStmt) {
+                $this->rollback();
+                throw new \RuntimeException('Failed to read session: INSERT reported a duplicate id but next SELECT did not return any data.');
+            }
+
+            if (!filter_var(\ini_get('session.use_strict_mode'), \FILTER_VALIDATE_BOOL) && self::LOCK_TRANSACTIONAL === $this->lockMode && 'sqlite' !== $this->driver) {
+                // In strict mode, session fixation is not possible: new sessions always start with a unique
+                // random id, so that concurrency is not possible and this code path can be skipped.
+                // Exclusive-reading of non-existent rows does not block, so we need to do an insert to block
+                // until other connections to the session are committed.
+                try {
+                    $insertStmt = $this->getInsertStatement($sessionId, '', 0);
+                    $insertStmt->execute();
+                } catch (\PDOException $e) {
+                    // Catch duplicate key error because other connection created the session already.
+                    // It would only not be the case when the other connection destroyed the session.
+                    if (str_starts_with($e->getCode(), '23')) {
+                        // Retrieve finished session data written by concurrent connection by restarting the loop.
+                        // We have to start a new transaction as a failed query will mark the current transaction as
+                        // aborted in PostgreSQL and disallow further queries within it.
+                        $this->rollback();
+                        $this->beginTransaction();
+                        continue;
+                    }
+
+                    throw $e;
+                }
+            }
+
+            return '';
+        }
+    }
+
+    /**
+     * Executes an application-level lock on the database.
+     *
+     * @return \PDOStatement The statement that needs to be executed later to release the lock
+     *
+     * @throws \DomainException When an unsupported PDO driver is used
+     *
+     * @todo implement missing advisory locks
+     *       - for oci using DBMS_LOCK.REQUEST
+     *       - for sqlsrv using sp_getapplock with LockOwner = Session
+     */
+    private function doAdvisoryLock(#[\SensitiveParameter] string $sessionId): \PDOStatement
+    {
+        switch ($this->driver) {
+            case 'mysql':
+                // MySQL 5.7.5 and later enforces a maximum length on lock names of 64 characters. Previously, no limit was enforced.
+                $lockId = substr($sessionId, 0, 64);
+                // should we handle the return value? 0 on timeout, null on error
+                // we use a timeout of 50 seconds which is also the default for innodb_lock_wait_timeout
+                $stmt = $this->pdo->prepare('SELECT GET_LOCK(:key, 50)');
+                $stmt->bindValue(':key', $lockId, \PDO::PARAM_STR);
+                $stmt->execute();
+
+                $releaseStmt = $this->pdo->prepare('DO RELEASE_LOCK(:key)');
+                $releaseStmt->bindValue(':key', $lockId, \PDO::PARAM_STR);
+
+                return $releaseStmt;
+            case 'pgsql':
+                // Obtaining an exclusive session level advisory lock requires an integer key.
+                // When session.sid_bits_per_character > 4, the session id can contain non-hex-characters.
+                // So we cannot just use hexdec().
+                if (4 === \PHP_INT_SIZE) {
+                    $sessionInt1 = $this->convertStringToInt($sessionId);
+                    $sessionInt2 = $this->convertStringToInt(substr($sessionId, 4, 4));
+
+                    $stmt = $this->pdo->prepare('SELECT pg_advisory_lock(:key1, :key2)');
+                    $stmt->bindValue(':key1', $sessionInt1, \PDO::PARAM_INT);
+                    $stmt->bindValue(':key2', $sessionInt2, \PDO::PARAM_INT);
+                    $stmt->execute();
+
+                    $releaseStmt = $this->pdo->prepare('SELECT pg_advisory_unlock(:key1, :key2)');
+                    $releaseStmt->bindValue(':key1', $sessionInt1, \PDO::PARAM_INT);
+                    $releaseStmt->bindValue(':key2', $sessionInt2, \PDO::PARAM_INT);
+                } else {
+                    $sessionBigInt = $this->convertStringToInt($sessionId);
+
+                    $stmt = $this->pdo->prepare('SELECT pg_advisory_lock(:key)');
+                    $stmt->bindValue(':key', $sessionBigInt, \PDO::PARAM_INT);
+                    $stmt->execute();
+
+                    $releaseStmt = $this->pdo->prepare('SELECT pg_advisory_unlock(:key)');
+                    $releaseStmt->bindValue(':key', $sessionBigInt, \PDO::PARAM_INT);
+                }
+
+                return $releaseStmt;
+            case 'sqlite':
+                throw new \DomainException('SQLite does not support advisory locks.');
+            default:
+                throw new \DomainException(sprintf('Advisory locks are currently not implemented for PDO driver "%s".', $this->driver));
+        }
+    }
+
+    /**
+     * Encodes the first 4 (when PHP_INT_SIZE == 4) or 8 characters of the string as an integer.
+     *
+     * Keep in mind, PHP integers are signed.
+     */
+    private function convertStringToInt(string $string): int
+    {
+        if (4 === \PHP_INT_SIZE) {
+            return (\ord($string[3]) << 24) + (\ord($string[2]) << 16) + (\ord($string[1]) << 8) + \ord($string[0]);
+        }
+
+        $int1 = (\ord($string[7]) << 24) + (\ord($string[6]) << 16) + (\ord($string[5]) << 8) + \ord($string[4]);
+        $int2 = (\ord($string[3]) << 24) + (\ord($string[2]) << 16) + (\ord($string[1]) << 8) + \ord($string[0]);
+
+        return $int2 + ($int1 << 32);
+    }
+
+    /**
+     * Return a locking or nonlocking SQL query to read session information.
+     *
+     * @throws \DomainException When an unsupported PDO driver is used
+     */
+    private function getSelectSql(): string
+    {
+        if (self::LOCK_TRANSACTIONAL === $this->lockMode) {
+            $this->beginTransaction();
+
+            switch ($this->driver) {
+                case 'mysql':
+                case 'oci':
+                case 'pgsql':
+                    return "SELECT $this->dataCol, $this->lifetimeCol FROM $this->table WHERE $this->idCol = :id FOR UPDATE";
+                case 'sqlsrv':
+                    return "SELECT $this->dataCol, $this->lifetimeCol FROM $this->table WITH (UPDLOCK, ROWLOCK) WHERE $this->idCol = :id";
+                case 'sqlite':
+                    // we already locked when starting transaction
+                    break;
+                default:
+                    throw new \DomainException(sprintf('Transactional locks are currently not implemented for PDO driver "%s".', $this->driver));
+            }
+        }
+
+        return "SELECT $this->dataCol, $this->lifetimeCol FROM $this->table WHERE $this->idCol = :id";
+    }
+
+    /**
+     * Returns an insert statement supported by the database for writing session data.
+     */
+    private function getInsertStatement(#[\SensitiveParameter] string $sessionId, string $sessionData, int $maxlifetime): \PDOStatement
+    {
+        switch ($this->driver) {
+            case 'oci':
+                $data = fopen('php://memory', 'r+');
+                fwrite($data, $sessionData);
+                rewind($data);
+                $sql = "INSERT INTO $this->table ($this->idCol, $this->dataCol, $this->lifetimeCol, $this->timeCol) VALUES (:id, EMPTY_BLOB(), :expiry, :time) RETURNING $this->dataCol into :data";
+                break;
+            default:
+                $data = $sessionData;
+                $sql = "INSERT INTO $this->table ($this->idCol, $this->dataCol, $this->lifetimeCol, $this->timeCol) VALUES (:id, :data, :expiry, :time)";
+                break;
+        }
+
+        $stmt = $this->pdo->prepare($sql);
+        $stmt->bindParam(':id', $sessionId, \PDO::PARAM_STR);
+        $stmt->bindParam(':data', $data, \PDO::PARAM_LOB);
+        $stmt->bindValue(':expiry', time() + $maxlifetime, \PDO::PARAM_INT);
+        $stmt->bindValue(':time', time(), \PDO::PARAM_INT);
+
+        return $stmt;
+    }
+
+    /**
+     * Returns an update statement supported by the database for writing session data.
+     */
+    private function getUpdateStatement(#[\SensitiveParameter] string $sessionId, string $sessionData, int $maxlifetime): \PDOStatement
+    {
+        switch ($this->driver) {
+            case 'oci':
+                $data = fopen('php://memory', 'r+');
+                fwrite($data, $sessionData);
+                rewind($data);
+                $sql = "UPDATE $this->table SET $this->dataCol = EMPTY_BLOB(), $this->lifetimeCol = :expiry, $this->timeCol = :time WHERE $this->idCol = :id RETURNING $this->dataCol into :data";
+                break;
+            default:
+                $data = $sessionData;
+                $sql = "UPDATE $this->table SET $this->dataCol = :data, $this->lifetimeCol = :expiry, $this->timeCol = :time WHERE $this->idCol = :id";
+                break;
+        }
+
+        $stmt = $this->pdo->prepare($sql);
+        $stmt->bindParam(':id', $sessionId, \PDO::PARAM_STR);
+        $stmt->bindParam(':data', $data, \PDO::PARAM_LOB);
+        $stmt->bindValue(':expiry', time() + $maxlifetime, \PDO::PARAM_INT);
+        $stmt->bindValue(':time', time(), \PDO::PARAM_INT);
+
+        return $stmt;
+    }
+
+    /**
+     * Returns a merge/upsert (i.e. insert or update) statement when supported by the database for writing session data.
+     */
+    private function getMergeStatement(#[\SensitiveParameter] string $sessionId, string $data, int $maxlifetime): ?\PDOStatement
+    {
+        switch (true) {
+            case 'mysql' === $this->driver:
+                $mergeSql = "INSERT INTO $this->table ($this->idCol, $this->dataCol, $this->lifetimeCol, $this->timeCol) VALUES (:id, :data, :expiry, :time) ".
+                    "ON DUPLICATE KEY UPDATE $this->dataCol = VALUES($this->dataCol), $this->lifetimeCol = VALUES($this->lifetimeCol), $this->timeCol = VALUES($this->timeCol)";
+                break;
+            case 'sqlsrv' === $this->driver && version_compare($this->pdo->getAttribute(\PDO::ATTR_SERVER_VERSION), '10', '>='):
+                // MERGE is only available since SQL Server 2008 and must be terminated by semicolon
+                // It also requires HOLDLOCK according to https://weblogs.sqlteam.com/dang/2009/01/31/upsert-race-condition-with-merge/
+                $mergeSql = "MERGE INTO $this->table WITH (HOLDLOCK) USING (SELECT 1 AS dummy) AS src ON ($this->idCol = ?) ".
+                    "WHEN NOT MATCHED THEN INSERT ($this->idCol, $this->dataCol, $this->lifetimeCol, $this->timeCol) VALUES (?, ?, ?, ?) ".
+                    "WHEN MATCHED THEN UPDATE SET $this->dataCol = ?, $this->lifetimeCol = ?, $this->timeCol = ?;";
+                break;
+            case 'sqlite' === $this->driver:
+                $mergeSql = "INSERT OR REPLACE INTO $this->table ($this->idCol, $this->dataCol, $this->lifetimeCol, $this->timeCol) VALUES (:id, :data, :expiry, :time)";
+                break;
+            case 'pgsql' === $this->driver && version_compare($this->pdo->getAttribute(\PDO::ATTR_SERVER_VERSION), '9.5', '>='):
+                $mergeSql = "INSERT INTO $this->table ($this->idCol, $this->dataCol, $this->lifetimeCol, $this->timeCol) VALUES (:id, :data, :expiry, :time) ".
+                    "ON CONFLICT ($this->idCol) DO UPDATE SET ($this->dataCol, $this->lifetimeCol, $this->timeCol) = (EXCLUDED.$this->dataCol, EXCLUDED.$this->lifetimeCol, EXCLUDED.$this->timeCol)";
+                break;
+            default:
+                // MERGE is not supported with LOBs: https://oracle.com/technetwork/articles/fuecks-lobs-095315.html
+                return null;
+        }
+
+        $mergeStmt = $this->pdo->prepare($mergeSql);
+
+        if ('sqlsrv' === $this->driver) {
+            $mergeStmt->bindParam(1, $sessionId, \PDO::PARAM_STR);
+            $mergeStmt->bindParam(2, $sessionId, \PDO::PARAM_STR);
+            $mergeStmt->bindParam(3, $data, \PDO::PARAM_LOB);
+            $mergeStmt->bindValue(4, time() + $maxlifetime, \PDO::PARAM_INT);
+            $mergeStmt->bindValue(5, time(), \PDO::PARAM_INT);
+            $mergeStmt->bindParam(6, $data, \PDO::PARAM_LOB);
+            $mergeStmt->bindValue(7, time() + $maxlifetime, \PDO::PARAM_INT);
+            $mergeStmt->bindValue(8, time(), \PDO::PARAM_INT);
+        } else {
+            $mergeStmt->bindParam(':id', $sessionId, \PDO::PARAM_STR);
+            $mergeStmt->bindParam(':data', $data, \PDO::PARAM_LOB);
+            $mergeStmt->bindValue(':expiry', time() + $maxlifetime, \PDO::PARAM_INT);
+            $mergeStmt->bindValue(':time', time(), \PDO::PARAM_INT);
+        }
+
+        return $mergeStmt;
+    }
+
+    /**
+     * Return a PDO instance.
+     */
+    protected function getConnection(): \PDO
+    {
+        if (!isset($this->pdo)) {
+            $this->connect($this->dsn ?: \ini_get('session.save_path'));
+        }
+
+        return $this->pdo;
+    }
+}

vendor/symfony/http-foundation/Session/Storage/Handler/RedisSessionHandler.php

@@ -0,0 +1,103 @@
+<?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;
+
+use Predis\Response\ErrorInterface;
+use Relay\Relay;
+
+/**
+ * Redis based session storage handler based on the Redis class
+ * provided by the PHP redis extension.
+ *
+ * @author Dalibor Karlović <dalibor@flexolabs.io>
+ */
+class RedisSessionHandler extends AbstractSessionHandler
+{
+    /**
+     * Key prefix for shared environments.
+     */
+    private string $prefix;
+
+    /**
+     * Time to live in seconds.
+     */
+    private int|\Closure|null $ttl;
+
+    /**
+     * List of available options:
+     *  * prefix: The prefix to use for the keys in order to avoid collision on the Redis server
+     *  * ttl: The time to live in seconds.
+     *
+     * @throws \InvalidArgumentException When unsupported client or options are passed
+     */
+    public function __construct(
+        private \Redis|Relay|\RedisArray|\RedisCluster|\Predis\ClientInterface $redis,
+        array $options = [],
+    ) {
+        if ($diff = array_diff(array_keys($options), ['prefix', 'ttl'])) {
+            throw new \InvalidArgumentException(sprintf('The following options are not supported "%s".', implode(', ', $diff)));
+        }
+
+        $this->prefix = $options['prefix'] ?? 'sf_s';
+        $this->ttl = $options['ttl'] ?? null;
+    }
+
+    protected function doRead(#[\SensitiveParameter] string $sessionId): string
+    {
+        return $this->redis->get($this->prefix.$sessionId) ?: '';
+    }
+
+    protected function doWrite(#[\SensitiveParameter] string $sessionId, string $data): bool
+    {
+        $ttl = ($this->ttl instanceof \Closure ? ($this->ttl)() : $this->ttl) ?? \ini_get('session.gc_maxlifetime');
+        $result = $this->redis->setEx($this->prefix.$sessionId, (int) $ttl, $data);
+
+        return $result && !$result instanceof ErrorInterface;
+    }
+
+    protected function doDestroy(#[\SensitiveParameter] string $sessionId): bool
+    {
+        static $unlink = true;
+
+        if ($unlink) {
+            try {
+                $unlink = false !== $this->redis->unlink($this->prefix.$sessionId);
+            } catch (\Throwable) {
+                $unlink = false;
+            }
+        }
+
+        if (!$unlink) {
+            $this->redis->del($this->prefix.$sessionId);
+        }
+
+        return true;
+    }
+
+    #[\ReturnTypeWillChange]
+    public function close(): bool
+    {
+        return true;
+    }
+
+    public function gc(int $maxlifetime): int|false
+    {
+        return 0;
+    }
+
+    public function updateTimestamp(#[\SensitiveParameter] string $sessionId, string $data): bool
+    {
+        $ttl = ($this->ttl instanceof \Closure ? ($this->ttl)() : $this->ttl) ?? \ini_get('session.gc_maxlifetime');
+
+        return $this->redis->expire($this->prefix.$sessionId, (int) $ttl);
+    }
+}

vendor/symfony/http-foundation/Session/Storage/Handler/SessionHandlerFactory.php

@@ -0,0 +1,99 @@
+<?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;
+
+use Doctrine\DBAL\Configuration;
+use Doctrine\DBAL\DriverManager;
+use Doctrine\DBAL\Schema\DefaultSchemaManagerFactory;
+use Doctrine\DBAL\Tools\DsnParser;
+use Relay\Relay;
+use Symfony\Component\Cache\Adapter\AbstractAdapter;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class SessionHandlerFactory
+{
+    public static function createHandler(object|string $connection, array $options = []): AbstractSessionHandler
+    {
+        if ($query = \is_string($connection) ? parse_url($connection) : false) {
+            parse_str($query['query'] ?? '', $query);
+
+            if (($options['ttl'] ?? null) instanceof \Closure) {
+                $query['ttl'] = $options['ttl'];
+            }
+        }
+        $options = ($query ?: []) + $options;
+
+        switch (true) {
+            case $connection instanceof \Redis:
+            case $connection instanceof Relay:
+            case $connection instanceof \RedisArray:
+            case $connection instanceof \RedisCluster:
+            case $connection instanceof \Predis\ClientInterface:
+                return new RedisSessionHandler($connection);
+
+            case $connection instanceof \Memcached:
+                return new MemcachedSessionHandler($connection);
+
+            case $connection instanceof \PDO:
+                return new PdoSessionHandler($connection);
+
+            case !\is_string($connection):
+                throw new \InvalidArgumentException(sprintf('Unsupported Connection: "%s".', get_debug_type($connection)));
+            case str_starts_with($connection, 'file://'):
+                $savePath = substr($connection, 7);
+
+                return new StrictSessionHandler(new NativeFileSessionHandler('' === $savePath ? null : $savePath));
+
+            case str_starts_with($connection, 'redis:'):
+            case str_starts_with($connection, 'rediss:'):
+            case str_starts_with($connection, 'memcached:'):
+                if (!class_exists(AbstractAdapter::class)) {
+                    throw new \InvalidArgumentException('Unsupported Redis or Memcached DSN. Try running "composer require symfony/cache".');
+                }
+                $handlerClass = str_starts_with($connection, 'memcached:') ? MemcachedSessionHandler::class : RedisSessionHandler::class;
+                $connection = AbstractAdapter::createConnection($connection, ['lazy' => true]);
+
+                return new $handlerClass($connection, array_intersect_key($options, ['prefix' => 1, 'ttl' => 1]));
+
+            case str_starts_with($connection, 'pdo_oci://'):
+                if (!class_exists(DriverManager::class)) {
+                    throw new \InvalidArgumentException('Unsupported PDO OCI DSN. Try running "composer require doctrine/dbal".');
+                }
+                $connection[3] = '-';
+                $params = class_exists(DsnParser::class) ? (new DsnParser())->parse($connection) : ['url' => $connection];
+                $config = new Configuration();
+                if (class_exists(DefaultSchemaManagerFactory::class)) {
+                    $config->setSchemaManagerFactory(new DefaultSchemaManagerFactory());
+                }
+
+                $connection = DriverManager::getConnection($params, $config);
+                // The condition should be removed once support for DBAL <3.3 is dropped
+                $connection = method_exists($connection, 'getNativeConnection') ? $connection->getNativeConnection() : $connection->getWrappedConnection();
+                // no break;
+
+            case str_starts_with($connection, 'mssql://'):
+            case str_starts_with($connection, 'mysql://'):
+            case str_starts_with($connection, 'mysql2://'):
+            case str_starts_with($connection, 'pgsql://'):
+            case str_starts_with($connection, 'postgres://'):
+            case str_starts_with($connection, 'postgresql://'):
+            case str_starts_with($connection, 'sqlsrv://'):
+            case str_starts_with($connection, 'sqlite://'):
+            case str_starts_with($connection, 'sqlite3://'):
+                return new PdoSessionHandler($connection, $options);
+        }
+
+        throw new \InvalidArgumentException(sprintf('Unsupported Connection: "%s".', $connection));
+    }
+}

vendor/symfony/http-foundation/Session/Storage/Handler/StrictSessionHandler.php

@@ -0,0 +1,89 @@
+<?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 basic `SessionUpdateTimestampHandlerInterface` behaviors to another `SessionHandlerInterface`.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class StrictSessionHandler extends AbstractSessionHandler
+{
+    private \SessionHandlerInterface $handler;
+    private bool $doDestroy;
+
+    public function __construct(\SessionHandlerInterface $handler)
+    {
+        if ($handler instanceof \SessionUpdateTimestampHandlerInterface) {
+            throw new \LogicException(sprintf('"%s" is already an instance of "SessionUpdateTimestampHandlerInterface", you cannot wrap it with "%s".', get_debug_type($handler), self::class));
+        }
+
+        $this->handler = $handler;
+    }
+
+    /**
+     * Returns true if this handler wraps an internal PHP session save handler using \SessionHandler.
+     *
+     * @internal
+     */
+    public function isWrapper(): bool
+    {
+        return $this->handler instanceof \SessionHandler;
+    }
+
+    public function open(string $savePath, string $sessionName): bool
+    {
+        parent::open($savePath, $sessionName);
+
+        return $this->handler->open($savePath, $sessionName);
+    }
+
+    protected function doRead(#[\SensitiveParameter] string $sessionId): string
+    {
+        return $this->handler->read($sessionId);
+    }
+
+    public function updateTimestamp(#[\SensitiveParameter] string $sessionId, string $data): bool
+    {
+        return $this->write($sessionId, $data);
+    }
+
+    protected function doWrite(#[\SensitiveParameter] string $sessionId, string $data): bool
+    {
+        return $this->handler->write($sessionId, $data);
+    }
+
+    public function destroy(#[\SensitiveParameter] string $sessionId): bool
+    {
+        $this->doDestroy = true;
+        $destroyed = parent::destroy($sessionId);
+
+        return $this->doDestroy ? $this->doDestroy($sessionId) : $destroyed;
+    }
+
+    protected function doDestroy(#[\SensitiveParameter] string $sessionId): bool
+    {
+        $this->doDestroy = false;
+
+        return $this->handler->destroy($sessionId);
+    }
+
+    public function close(): bool
+    {
+        return $this->handler->close();
+    }
+
+    public function gc(int $maxlifetime): int|false
+    {
+        return $this->handler->gc($maxlifetime);
+    }
+}