ERP/TradeManage/GlobalAshx/file_manager_json.ashx.cs

using System;
using System.Collections;
using System.Web;
using System.IO;
using System.Text.RegularExpressions;
using System.Collections.Generic;
using System.Web.Script.Serialization;

namespace NetWorkHard.GlobalAshx
{
    /// <summary>
    /// file_manager_json 的摘要说明
    /// </summary>
    public class file_manager_json : IHttpHandler
    {
        public void ProcessRequest(HttpContext context)
        {
            String aspxUrl = context.Request.Path.Substring(0, context.Request.Path.LastIndexOf("/") + 1);

            //根目录路径，相对路径
            //String rootPath = "../attached/";
            //根目录URL，可以指定绝对路径，比如 http://www.yoursite.com/attached/
            //String rootUrl = "../attached/";
            //图片扩展名
            //String fileTypes = "gif,jpg,jpeg,png,bmp";

			//String currentPath = "";
			//String currentUrl = "";
			//String currentDirPath = "";
			//String moveupDirPath = "";

			//String dirPath = context.Server.MapPath(rootPath);
			//String dirName = context.Request.QueryString["dir"];
			//if (!String.IsNullOrEmpty(dirName))
			//{
			//    if (Array.IndexOf("image,flash,media,file".Split(','), dirName) == -1)
			//    {
			//        context.Response.Write("Invalid Directory name.");
			//        context.Response.End();
			//    }
			//    dirPath += dirName + "/";
			//    rootUrl += dirName + "/";
			//    if (!Directory.Exists(dirPath))
			//    {
			//        Directory.CreateDirectory(dirPath);
			//    }
			//}

			////根据path参数，设置各路径和URL
			//String path = context.Request.QueryString["path"];
			//path = String.IsNullOrEmpty(path) ? "" : path;
			//if (path == "")
			//{
			//    currentPath = dirPath;
			//    currentUrl = rootUrl;
			//    currentDirPath = "";
			//    moveupDirPath = "";
			//}
			//else
			//{
			//    currentPath = dirPath + path;
			//    currentUrl = rootUrl + path;
			//    currentDirPath = path;
			//    moveupDirPath = Regex.Replace(currentDirPath, @"(.*?)[^\/]+\/$", "$1");
			//}

			////排序形式，name or size or type
			//String order = context.Request.QueryString["order"];
			//order = String.IsNullOrEmpty(order) ? "" : order.ToLower();

			////不允许使用..移动到上一级目录
			//if (Regex.IsMatch(path, @"\.\."))
			//{
			//    context.Response.Write("Access is not allowed.");
			//    context.Response.End();
			//}
			////最后一个字符不是/
			//if (path != "" && !path.EndsWith("/"))
			//{
			//    context.Response.Write("Parameter is not valid.");
			//    context.Response.End();
			//}
			////目录不存在或不是目录
			//if (!Directory.Exists(currentPath))
			//{
			//    context.Response.Write("Directory does not exist.");
			//    context.Response.End();
			//}

			////遍历目录取得文件信息
			//string[] dirList = Directory.GetDirectories(currentPath);
			//string[] fileList = Directory.GetFiles(currentPath);

	

			//switch (order)
			//{
			//    case "size":
			//        Array.Sort(dirList, new NameSorter());
			//        Array.Sort(fileList, new SizeSorter());
			//        break;
			//    case "type":
			//        Array.Sort(dirList, new NameSorter());
			//        Array.Sort(fileList, new TypeSorter());
			//        break;
			//    case "name":
			//    default:
			//        Array.Sort(dirList, new NameSorter());
			//        Array.Sort(fileList, new NameSorter());
			//        break;
			//}

			string DirectoryName = context.Request.QueryString["DirectoryName"];
			if (string.IsNullOrEmpty(DirectoryName) == true) DirectoryName = "attached";
			DirectoryName = System.AppDomain.CurrentDomain.BaseDirectory + DirectoryName;
			if (Directory.Exists(DirectoryName) == false) Directory.CreateDirectory(DirectoryName);
			String dirName = context.Request.QueryString["dir"];
			String order = context.Request.QueryString["order"];

			//Hashtable result = new Hashtable();
			//result["moveup_dir_path"] = moveupDirPath;
			//result["current_dir_path"] = currentDirPath;
			//result["current_url"] = currentUrl;
			//result["total_count"] = dirList.Length + fileList.Length;
			//List<Hashtable> dirFileList = new List<Hashtable>();
			//result["file_list"] = dirFileList;
			//for (int i = 0; i < dirList.Length; i++)
			//{
			//    DirectoryInfo dir = new DirectoryInfo(dirList[i]);
			//    Hashtable hash = new Hashtable();
			//    hash["is_dir"] = true;
			//    hash["has_file"] = (dir.GetFileSystemInfos().Length > 0);
			//    hash["filesize"] = 0;
			//    hash["is_photo"] = false;
			//    hash["filetype"] = "";
			//    hash["filename"] = dir.Name;
			//    hash["datetime"] = dir.LastWriteTime.ToString("yyyy-MM-dd HH:mm:ss");
			//    dirFileList.Add(hash);
			//}
			//for (int i = 0; i < fileList.Length; i++)
			//{
			//    FileInfo file = new FileInfo(fileList[i]);
			//    Hashtable hash = new Hashtable();
			//    hash["is_dir"] = false;
			//    hash["has_file"] = false;
			//    hash["filesize"] = file.Length;
			//    hash["is_photo"] = (Array.IndexOf(fileTypes.Split(','), file.Extension.Substring(1).ToLower()) >= 0);
			//    hash["filetype"] = file.Extension.Substring(1);
			//    hash["filename"] = file.Name;
			//    hash["datetime"] = file.LastWriteTime.ToString("yyyy-MM-dd HH:mm:ss");
			//    dirFileList.Add(hash);
			//}
            context.Response.AddHeader("Content-Type", "application/json; charset=UTF-8");
           // context.Response.Write(JsonMapper.ToJson(result));
			//string jsonString = new JavaScriptSerializer().Serialize(result);
			//context.Response.Write(jsonString);
            context.Response.End();
        }

        public class NameSorter : IComparer
        {
            public int Compare(object x, object y)
            {
                if (x == null && y == null)
                {
                    return 0;
                }
                if (x == null)
                {
                    return -1;
                }
                if (y == null)
                {
                    return 1;
                }
                FileInfo xInfo = new FileInfo(x.ToString());
                FileInfo yInfo = new FileInfo(y.ToString());

                return xInfo.FullName.CompareTo(yInfo.FullName);
            }
        }

        public class SizeSorter : IComparer
        {
            public int Compare(object x, object y)
            {
                if (x == null && y == null)
                {
                    return 0;
                }
                if (x == null)
                {
                    return -1;
                }
                if (y == null)
                {
                    return 1;
                }
                FileInfo xInfo = new FileInfo(x.ToString());
                FileInfo yInfo = new FileInfo(y.ToString());

                return xInfo.Length.CompareTo(yInfo.Length);
            }
        }

        public class TypeSorter : IComparer
        {
            public int Compare(object x, object y)
            {
                if (x == null && y == null)
                {
                    return 0;
                }
                if (x == null)
                {
                    return -1;
                }
                if (y == null)
                {
                    return 1;
                }
                FileInfo xInfo = new FileInfo(x.ToString());
                FileInfo yInfo = new FileInfo(y.ToString());

                return xInfo.Extension.CompareTo(yInfo.Extension);
            }
        }

        public bool IsReusable
        {
            get
            {
                return true;
            }
        }
    }
}