html富文本框：kindeditor續

7、'ManagerUpImage.ashx'文件：

 public class ManagerUpImage : IHttpHandler
    {
        public void ProcessRequest(HttpContext context)
        {
            String aspxUrl = context.Request.Path.Substring(0, context.Request.Path.LastIndexOf("/") + 1);
 //根目錄路徑，相對路徑
            String rootPath = "../Upload/";
            //根目錄URL，可以指定絕對路徑，比如 http://www.yoursite.com/Upload/
            String rootUrl = aspxUrl + "../Upload/";
            //圖片擴展名
            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);
                }
            }

 //根據path參數，設置各路徑和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();

            //不允許使用..移動到上一級目錄
            if (Regex.IsMatch(path, @"\.\."))
            {
                context.Response.Write("Access is not allowed.");
                context.Response.End();
            }

//最後一個字符不是/
            if (path != "" && !path.EndsWith("/"))
            {
                context.Response.Write("Parameter is not valid.");
                context.Response.End();
            }

 //目錄不存在或不是目錄
            if (!Directory.Exists(currentPath))
            {
                context.Response.Write("Directory does not exist.");
                context.Response.End();
            }

  //遍歷目錄取得文件信息
            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;

 }

 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));
            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 false;
            }
        }
      
    }