application/admin/controller/Filemanager.php

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<?php
/**
 * 易优CMS
 * ============================================================================
 * 版权所有 2016-2028 海南赞赞网络科技有限公司，并保留所有权利。
 * 网站地址: http://www.eyoucms.com
 * ----------------------------------------------------------------------------
 * 如果商业用途务必到官方购买正版授权, 以免引起不必要的法律纠纷.
 * ============================================================================
 * Author: 小虎哥 <1105415366@qq.com>
 * Date: 2018-4-3
 */

namespace app\admin\controller;
use app\admin\controller\Base;
use think\Controller;
use think\Db;
use app\admin\logic\FilemanagerLogic;

class Filemanager extends Base
{
    public $filemanagerLogic;
    public $baseDir = '';
    public $maxDir = '';
    public $globalTpCache = array();

    public function _initialize() {
        parent::_initialize();
        $this->filemanagerLogic = new FilemanagerLogic(); 
        $this->globalTpCache = $this->filemanagerLogic->globalTpCache;
        $this->baseDir = $this->filemanagerLogic->baseDir; // 服务器站点根目录绝对路径
        $this->maxDir = $this->filemanagerLogic->maxDir; // 默认文件管理的最大级别目录
    }

    public function index()
    {
        // 获取到所有GET参数
        $param = input('param.', '', null);
        $activepath = input('param.activepath', '', null);
        $activepath = $this->filemanagerLogic->replace_path($activepath, ':', true);

        /*当前目录路径*/
        $activepath = !empty($activepath) ? $activepath : $this->maxDir;
        $tmp_max_dir = preg_replace("#\/#i", "\/", $this->maxDir);
        if (!preg_match("#^".$tmp_max_dir."#i", $activepath)) {
            $activepath = $this->maxDir;
        }
        /*--end*/

        $inpath = "";
        $activepath = str_replace("..", "", $activepath);
        $activepath = preg_replace("#^\/{1,}#", "/", $activepath); // 多个斜杆替换为单个斜杆
        if($activepath == "/") $activepath = "";

        if(empty($activepath)) {
            $inpath = $this->baseDir.$this->maxDir;
        } else {
            $inpath = $this->baseDir.$activepath;
        }