uploader.cs

这是一个简单的论坛程序源码

/*
 * FCKeditor - The text editor for internet
 * Copyright (C) 2003-2005 Frederico Caldeira Knabben
 * 
 * Licensed under the terms of the GNU Lesser General Public License:
 * 		http://www.opensource.org/licenses/lgpl-license.php
 * 
 * For further information visit:
 * 		http://www.fckeditor.net/
 * 
 * "Support Open Source software. What about a donation today?"
 * 
 * File Name: Uploader.cs
 * 	This is the code behind of the uploader.aspx page used for Quick Uploads.
 * 
 * File Authors:
 * 		Frederico Caldeira Knabben ([e-mail])
 */

using System;
using System.Globalization;
using System.Xml;
using System.Web;

namespace FredCK.FCKeditorV2
{
    public class Uploader : FileWorkerBase
    {
        protected override void OnLoad(EventArgs e)
        {
            // Get the posted file.
            HttpPostedFile oFile = Request.Files["NewFile"];

            // Check if the file has been correctly uploaded
            if (oFile == null || oFile.ContentLength == 0)
            {
                SendResults(202);
                return;
            }

            int iErrorNumber = 0;
            string sFileUrl = "";

            // Get the uploaded file name.
            string sFileName = System.IO.Path.GetFileName(oFile.FileName);

            int iCounter = 0;

            while (true)
            {
                //判断文件是否可以上传
                if (CheckUploadFileExtension(sFileName))
                {
                    string sFilePath = System.IO.Path.Combine(this.UserFilesDirectory, sFileName);

                    if (System.IO.File.Exists(sFilePath))
                    {
                        iCounter++;
                        sFileName =
                            System.IO.Path.GetFileNameWithoutExtension(oFile.FileName) +
                            "(" + iCounter + ")" +
                            System.IO.Path.GetExtension(oFile.FileName);

                        iErrorNumber = 201;
                    }
                    else
                    {
                        oFile.SaveAs(sFilePath);
                        sFileUrl = this.UserFilesPath + sFileName;
                        break;
                    }
                }
                else
                {
                    //不允许上传
                    SendResults(202);
                    break;
                }
            }

            SendResults(iErrorNumber, sFileUrl, sFileName);
        }

        #region SendResults Method

        private void SendResults(int errorNumber)
        {
            SendResults(errorNumber, "", "", "");
        }

        private void SendResults(int errorNumber, string fileUrl, string fileName)
        {
            SendResults(errorNumber, fileUrl, fileName, "");
        }

        private void SendResults(int errorNumber, string fileUrl, string fileName, string customMsg)
        {
            Response.Clear();

            Response.Write("<script type=\"text/javascript\">");
            Response.Write("window.parent.OnUploadCompleted(" + errorNumber + ",'" + fileUrl.Replace("'", "\\'") + "','" + fileName.Replace("'", "\\'") + "','" + customMsg.Replace("'", "\\'") + "') ;");
            Response.Write("</script>");

            Response.End();
        }

        #endregion
    }
}