From 5589c8c9619f8a477407aaa6b74653e8828fe2a0 Mon Sep 17 00:00:00 2001
From: winerQin <753814253@qq.com>
Date: Tue, 24 Mar 2015 15:03:47 +0800
Subject: [PATCH] Rename src to src/LaravelSessionHandler.php
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Laravel5.x不支持 SessionHandler类。所以，我调整之后把适合的版本提交上来。麻烦请合并一下。
---
 src/LaravelSessionHandler.php | 108 ++++++++++++++++++++++++++++++++++
 1 file changed, 108 insertions(+)
 create mode 100644 src/LaravelSessionHandler.php

diff --git a/src/LaravelSessionHandler.php b/src/LaravelSessionHandler.php
new file mode 100644
index 0000000..13f9278
--- /dev/null
+++ b/src/LaravelSessionHandler.php
@@ -0,0 +1,108 @@
+<?php
+namespace SSDB;
+class LaravelSessionHandler implements \SessionHandlerInterface {
+	/**
+	 * ssdb对象。
+	 * @var Client
+	 */
+	protected $_client;
+	
+	/**
+	 * session前缀。
+	 * @var string
+	 */
+	protected $_prefix = 'sess_';
+	/**
+	 * session有效期。
+	 * @var int
+	 */
+	protected $_ttl;
+	/**
+	 * @var array
+	 */
+	protected $_cache = array();
+	/**
+	 * 
+	 * @param Client $ssdb
+	 * @param int $ttl
+	 */
+	public function __construct($save_path, $ttl = null, $prefix = 'sess_') {
+		$this->_ttl = $ttl ?: ini_get('session.gc_maxlifetime');
+		$this->_prefix = $prefix;
+		$components = parse_url($save_path);
+		
+		if ($components === false || 
+				!isset($components['scheme'], $components['host'], $components['port']) 
+				|| strtolower($components['scheme']) !== 'tcp') {
+			throw new Exception('Invalid session.save_path: ' . $save_path);
+		}
+		
+		$this->_client = new Client($components['host'], $components['port']);
+		if (isset($components['query'])) {
+			parse_str($components['query'], $query);
+			if (isset($query['auth'])) {
+				$this->_client->auth($query['auth']);
+			}
+		}
+	}
+	/**
+	 * 关闭当前session。
+	 * @return boolean
+	 */
+	public function close() {
+		$this->_client->close();
+		return true;
+	}
+	/**
+	 * 
+	 * @param string $session_id
+	 * @return boolean
+	 */
+	public function destroy($session_id) {
+		$this->_client->del($this->_prefix . $session_id);
+		return true;
+	}
+	/**
+	 * ssdb不需要gc清理过期的session。ssdb会自己清掉。
+	 * @param int $maxlifetime
+	 * @return boolean
+	 */
+	public function gc($maxlifetime) {
+		return true;
+	}
+	/**
+	 * @param string $save_path
+	 * @param string $name
+	 * @return boolean
+	 */
+	public function open($save_path, $name) {
+		return true;
+	}
+	/**
+	 * 读取session。
+	 * @param string $session_id
+	 * @return string
+	 */
+	public function read($session_id) {
+		if (isset($this->_cache[$session_id])) {
+			return $this->_cache[$session_id];
+		}
+		$session_data = $this->_client->get($this->_prefix . $session_id)->data;
+		return $this->_cache[$session_id] = ($session_data === null ? '' : $session_data);
+	}
+	/**
+	 * 写session。
+	 * @param string $session_id
+	 * @param string $session_data
+	 * @return boolean
+	 */
+	public function write($session_id, $session_data) {
+		if (isset($this->_cache[$session_id]) && $this->_cache[$session_id] === $session_data) {
+			$this->_client->expire($this->_prefix . $session_id, $this->_ttl);
+		} else {
+			$this->_cache[$session_id] = $session_data;
+			$this->_client->setx($this->_prefix . $session_id, $session_data, $this->_ttl);
+		}
+		return true;
+	}
+}