122 lines
3.2 KiB
Plaintext
122 lines
3.2 KiB
Plaintext
<%@ webhandler Language="C#" class="Upload" %>
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/**
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* KindEditor ASP.NET
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*
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* 本ASP.NET程序是演示程序，建议不要直接在实际项目中使用。
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* 如果您确定直接使用本程序，使用之前请仔细确认相关安全设置。
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*
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*/
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using System;
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using System.Collections;
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using System.Web;
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using System.IO;
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using System.Globalization;
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using LitJson;
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public class Upload : IHttpHandler
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{
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private HttpContext context;
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public void ProcessRequest(HttpContext context)
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{
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String aspxUrl = context.Request.Path.Substring(0, context.Request.Path.LastIndexOf("/") + 1);
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//文件保存目录路径
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String savePath = "/public/upload/attached/";
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//文件保存目录URL
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String saveUrl = aspxUrl + "/public/upload/attached/";
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//定义允许上传的文件扩展名
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Hashtable extTable = new Hashtable();
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extTable.Add("image", "gif,jpg,jpeg,png,bmp");
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extTable.Add("flash", "swf,flv");
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extTable.Add("media", "swf,flv,mp3,wav,wma,wmv,mid,avi,mpg,asf,rm,rmvb");
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extTable.Add("file", "doc,docx,xls,xlsx,ppt,htm,html,txt,zip,rar,gz,bz2");
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//最大文件大小
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int maxSize = 1000000;
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this.context = context;
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HttpPostedFile imgFile = context.Request.Files["imgFile"];
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if (imgFile == null)
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{
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showError("请选择文件。");
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}
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String dirPath = context.Server.MapPath(savePath);
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if (!Directory.Exists(dirPath))
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{
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showError("上传目录不存在。");
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}
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String dirName = context.Request.QueryString["dir"];
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if (String.IsNullOrEmpty(dirName)) {
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dirName = "image";
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}
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if (!extTable.ContainsKey(dirName)) {
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showError("目录名不正确。");
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}
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String fileName = imgFile.FileName;
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String fileExt = Path.GetExtension(fileName).ToLower();
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if (imgFile.InputStream == null || imgFile.InputStream.Length > maxSize)
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{
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showError("上传文件大小超过限制。");
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}
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if (String.IsNullOrEmpty(fileExt) || Array.IndexOf(((String)extTable[dirName]).Split(','), fileExt.Substring(1).ToLower()) == -1)
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{
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showError("上传文件扩展名是不允许的扩展名。\n只允许" + ((String)extTable[dirName]) + "格式。");
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}
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//创建文件夹
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dirPath += dirName + "/";
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saveUrl += dirName + "/";
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if (!Directory.Exists(dirPath)) {
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Directory.CreateDirectory(dirPath);
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}
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String ymd = DateTime.Now.ToString("yyyyMMdd", DateTimeFormatInfo.InvariantInfo);
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dirPath += ymd + "/";
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saveUrl += ymd + "/";
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if (!Directory.Exists(dirPath)) {
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Directory.CreateDirectory(dirPath);
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}
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String newFileName = DateTime.Now.ToString("yyyyMMddHHmmss_ffff", DateTimeFormatInfo.InvariantInfo) + fileExt;
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String filePath = dirPath + newFileName;
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imgFile.SaveAs(filePath);
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String fileUrl = saveUrl + newFileName;
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Hashtable hash = new Hashtable();
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hash["error"] = 0;
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hash["url"] = fileUrl;
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context.Response.AddHeader("Content-Type", "text/html; charset=UTF-8");
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context.Response.Write(JsonMapper.ToJson(hash));
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context.Response.End();
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}
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private void showError(string message)
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{
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Hashtable hash = new Hashtable();
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hash["error"] = 1;
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hash["message"] = message;
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context.Response.AddHeader("Content-Type", "text/html; charset=UTF-8");
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context.Response.Write(JsonMapper.ToJson(hash));
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context.Response.End();
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}
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public bool IsReusable
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{
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get
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{
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return true;
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}
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}
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}
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