RedisSessionHandler added for Symfony Session

composer.json

@@ -18,6 +18,9 @@
     "autoload": {
         "psr-4": {
             "Selami\\Factories\\": "src/"
-        }
+        },
+        "file": [
+            "src/Adapters/Symfony/Component/HttpFoundation/Session/Storage/Handler/RedisSessionHandler"
+        ]
     }
 }

src/Adapters/Symfony/Component/HttpFoundation/Session/Storage/Handler/RedisSessionHandler.php

@@ -0,0 +1,58 @@
+<?php
+declare(strict_types=1);
+
+namespace Selami\Factories\Adapters\Symfony\Component\HttpFoundation\Session\Storage\Handler;
+
+use Symfony\Component\HttpFoundation\Session\Storage\Handler;
+use Redis;
+
+class RedisSessionHandler implements \SessionHandlerInterface
+{
+    private $redis;
+    private $ttl;
+    private $prefix;
+
+    public function __construct(Redis $redis, array $options = array())
+    {
+        $this->redis = $redis;
+        if ($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 = $options['prefix'] ?? 'selami';
+    }
+
+    public function open($savePath, $sessionName) : bool
+    {
+        return true;
+    }
+
+    public function close() : bool
+    {
+        return true;
+    }
+
+    public function read($sessionId) : string
+    {
+        return $this->redis->get($this->prefix.$sessionId) ?: '';
+    }
+
+    public function write($sessionId, $data) : bool
+    {
+        return $this->redis->set($this->prefix.$sessionId, $data, time() + $this->ttl);
+    }
+
+    public function destroy($sessionId)
+    {
+        return $this->redis->delete($this->prefix.$sessionId);
+    }
+
+    public function gc($maxlifetime) : bool
+    {
+        // not required here because redis will auto expire the records anyhow.
+        return true;
+    }
+
+}

src/SymfonySessionRedisFactory.php

@@ -0,0 +1,24 @@
+<?php
+declare(strict_types=1);
+
+namespace Selami\Factories;
+
+use Zend\ServiceManager\Factory\FactoryInterface;
+use Interop\Container\ContainerInterface;
+use Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage;
+use Symfony\Component\HttpFoundation\Session\Storage\Handler\MemcachedSessionHandler;
+use Symfony\Component\HttpFoundation\Session\Session;
+use Memcached;
+
+class SymfonySessionRedisFactory implements FactoryInterface
+{
+    public function __invoke(ContainerInterface $container, $requestedName, array $options = null) : Session
+    {
+        ini_set('session.use_cookies', '1');
+        ini_set('session.use_only_cookies', '1');
+        ini_set('session.cookie_httponly', '1');
+        ini_set('session.name', 'SELAMISESSID');
+        $storage = new NativeSessionStorage(array(), new MemcachedSessionHandler($container->get(Memcached::class)));
+        return new Session($storage);
+    }
+}