first commit

system/library/session/redis.php

@@ -0,0 +1,81 @@
+<?php
+namespace Opencart\System\Library\Session;
+/**
+ * Class Redis
+ *
+ * @package
+ */
+class Redis {
+	private object $config;
+	private object $redis;
+	/**
+	 * Construct
+	 *
+	 * @param    object  $registry
+	 */
+	public function __construct(\Opencart\System\Engine\Registry $registry)	{
+		$this->config = $registry->get('config');
+
+		try {
+			$this->redis = new \Redis();
+			$this->redis->pconnect(CACHE_HOSTNAME, CACHE_PORT);
+			$this->prefix = CACHE_PREFIX . '.session.'; // session prefix to identify session keys
+		} catch (\RedisException $e) {
+			//
+		}
+	}
+
+	/**
+	 * Read
+	 *
+	 * @param    string  $session_id
+	 *
+	 * @return	 array
+	 */
+	public function read(string $session_id): array	{
+		$data = $this->redis->get($this->prefix . $session_id);
+		if (is_null($data) || empty($data))
+			return [];
+		return json_decode($data, true);
+	}
+
+	/**
+	 * Write
+	 *
+	 * @param    string  $session_id
+	 * @param    array   $data
+	 *
+	 * @return	 bool
+	 */
+	public function write(string $session_id, array $data): bool {
+		if ($session_id) {
+			$this->redis->set($this->prefix . $session_id, $data ? json_encode($data) : '', $this->config->get('session_expire'));
+		}
+
+		return true;
+	}
+	
+	/**
+	 * Destroy
+	 *
+	 * @param    string  $session_id
+	 *
+	 * @return	 bool
+	 */
+	public function destroy(string $session_id): bool {
+		$this->redis->unlink($this->prefix . $session_id);
+
+		return true;
+	}
+
+	/**
+	 * GC
+	 *
+	 * @return	 bool
+	 */
+	public function gc(): bool {
+		// Redis will take care of Garbage Collection itself.
+
+		return true;
+	}
+}