Admin/system/com/upfile.ashx

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<%@ WebHandler Language="C#" Class="upfile" %>

using System;
using System.Web;

public class upfile : IHttpHandler
{
    public void ProcessRequest(HttpContext context)
    {
        context.Response.AddHeader("Content-Type", "text/html; charset=UTF-8");
        string urlPath, savePath;
        string[] ret = new string[context.Request.Files.Count];

        string path = context.Request.QueryString.Get("type");

        if (!System.IO.Directory.Exists(context.Server.MapPath("/uploads/" + path)))
        {
            System.IO.Directory.CreateDirectory(context.Server.MapPath("/uploads/" + path));
        }
        if (ret.Length > 0 && !string.IsNullOrEmpty(path))
        {
            for (int i = 0; i < ret.Length; i++)
            {
                string n = System.IO.Path.GetExtension(context.Request.Files[i].FileName);
                n = UAP.Function.Datetime.GetStamp(true).ToString() + n;
                urlPath = "/uploads/" + path + "/" + n;
                savePath = context.Server.MapPath(urlPath);
                try
                {
                    context.Request.Files[i].SaveAs(savePath);
                    string ex = System.IO.Path.GetExtension(urlPath).ToLower();
                    ret[i] = "{\"error\":0,\"url\":\"" + urlPath + "\",\"name\":\"" + context.Request.Files[i].FileName + "\"}";
                }
                catch (Exception ue)
                {
                    ret[i] = "{\"error\":1,\"message\":\"" + ue.Message + "\"}";
                }
            }
            if (string.IsNullOrEmpty(context.Request.QueryString.Get("isk")))
            {
                path = "[" + string.Join(",", ret) + "]";
            }
            else
            {
                path = string.Join(",", ret);
            }
            context.Response.Write(path);
        }
        else
        {
            context.Response.Write("null");
        }
    }

    public bool IsReusable
    {
        get
        {
            return false;
        }