初始化项目

2016-06-21 17:12:08 +08:00
commit 7ea154d684
903 changed files with 226100 additions and 0 deletions
--- a/core/library/think/cache/driver/File.php
+++ b/core/library/think/cache/driver/File.php
@@ -0,0 +1,186 @@
+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006~2016 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: liu21st <liu21st@gmail.com>
+// +----------------------------------------------------------------------
+
+namespace think\cache\driver;
+
+use think\Cache;
+
+/**
+ * 文件类型缓存类
+ * @author    liu21st <liu21st@gmail.com>
+ */
+class File
+{
+
+    protected $options = [
+        'expire'        => 0,
+        'cache_subdir'  => false,
+        'path_level'    => 1,
+        'prefix'        => '',
+        'path'          => CACHE_PATH,
+        'data_compress' => false,
+    ];
+
+    /**
+     * 架构函数
+     * @param array $options
+     */
+    public function __construct($options = [])
+    {
+        if (!empty($options)) {
+            $this->options = array_merge($this->options, $options);
+        }
+        if (substr($this->options['path'], -1) != '/') {
+            $this->options['path'] .= '/';
+        }
+        $this->init();
+    }
+
+    /**
+     * 初始化检查
+     * @access private
+     * @return boolean
+     */
+    private function init()
+    {
+        // 创建项目缓存目录
+        if (!is_dir($this->options['path'])) {
+            if (mkdir($this->options['path'], 0755, true)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * 取得变量的存储文件名
+     * @access private
+     * @param string $name 缓存变量名
+     * @return string
+     */
+    private function filename($name)
+    {
+        $name = md5($name);
+        if ($this->options['cache_subdir']) {
+            // 使用子目录
+            $dir = '';
+            $len = $this->options['path_level'];
+            for ($i = 0; $i < $len; $i++) {
+                $dir .= $name{$i} . '/';
+            }
+            if (!is_dir($this->options['path'] . $dir)) {
+                mkdir($this->options['path'] . $dir, 0755, true);
+            }
+            $filename = $dir . $this->options['prefix'] . $name . '.php';
+        } else {
+            $filename = $this->options['prefix'] . $name . '.php';
+        }
+        return $this->options['path'] . $filename;
+    }
+
+    /**
+     * 读取缓存
+     * @access public
+     * @param string $name 缓存变量名
+     * @return mixed
+     */
+    public function get($name)
+    {
+        $filename = $this->filename($name);
+        if (!is_file($filename)) {
+            return false;
+        }
+        $content = file_get_contents($filename);
+        if (false !== $content) {
+            $expire = (int) substr($content, 8, 12);
+            if (0 != $expire && time() > filemtime($filename) + $expire) {
+                //缓存过期删除缓存文件
+                $this->unlink($filename);
+                return false;
+            }
+            $content = substr($content, 20, -3);
+            if ($this->options['data_compress'] && function_exists('gzcompress')) {
+                //启用数据压缩
+                $content = gzuncompress($content);
+            }
+            $content = unserialize($content);
+            return $content;
+        } else {
+            return false;
+        }
+    }
+
+    /**
+     * 写入缓存
+     * @access public
+     * @param string    $name 缓存变量名
+     * @param mixed     $value  存储数据
+     * @param int       $expire  有效时间 0为永久
+     * @return boolean
+     */
+    public function set($name, $value, $expire = null)
+    {
+        if (is_null($expire)) {
+            $expire = $this->options['expire'];
+        }
+        $filename = $this->filename($name);
+        $data     = serialize($value);
+        if ($this->options['data_compress'] && function_exists('gzcompress')) {
+            //数据压缩
+            $data = gzcompress($data, 3);
+        }
+        $data   = "<?php\n//" . sprintf('%012d', $expire) . $data . "\n?>";
+        $result = file_put_contents($filename, $data);
+        if ($result) {
+            clearstatcache();
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    /**
+     * 删除缓存
+     * @access public
+     * @param string $name 缓存变量名
+     * @return boolean
+     */
+    public function rm($name)
+    {
+        return $this->unlink($this->filename($name));
+    }
+
+    /**
+     * 清除缓存
+     * @access public
+     * @return boolean
+     */
+    public function clear()
+    {
+        $fileLsit = (array) glob($this->options['path'] . '*');
+        foreach ($fileLsit as $path) {
+            is_file($path) && unlink($path);
+        }
+        return true;
+    }
+
+    /**
+     * 判断文件是否存在后，删除
+     * @param $path
+     * @return bool
+     * @author byron sampson <xiaobo.sun@qq.com>
+     * @return boolean
+     */
+    private function unlink($path)
+    {
+        return is_file($path) && unlink($path);
+    }
+}