<%@ WebHandler Language="C#" Class="Handler" %>

using System;
using System.Web;
using System.Data;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System.Collections.Generic;
using System.Collections;
using System.Web.SessionState;
using System.Linq;
using System.Reflection;
using System.IO;
using System.Text;
using Stooges;
using System.Threading.Tasks;
using System.Threading;

public class Handler : HttpTaskAsyncHandler
{
    public override async Task ProcessRequestAsync(HttpContext context)
    {
        try
        {
            //if (context.User == null || context.Request.IsAuthenticated == false)
            //{
            //    context.Response.StatusCode = 401;
            //    context.Response.End(); 
            //}
            string[] fileKeys = context.Request.Files.AllKeys;
            string fileName = "";
            foreach (string fileKey in fileKeys)
            {
                HttpPostedFile file = context.Request.Files[fileKey];
                string extension = file.FileName.Substring(file.FileName.LastIndexOf("."));
                fileName = Guid.NewGuid() + extension;
                file.SaveAs(context.Server.MapPath(@"~\img\" + fileName));
            }          
            context.Response.ContentType = "text/plain";
            context.Response.Write(fileName);
        }
        catch (Exception ex)
        {
            context.Response.ContentType = "text/plain";
            context.Response.StatusCode = 400;
            //context.Response.Write(ex.Message);
        }
    }

    public override bool IsReusable
    {
        get
        {
            return false;
        }
    }
}



//public class Handler : IHttpHandler 
//{
//    public void ProcessRequest(HttpContext context)
//    {
//        try
//        {
//            //if (context.User == null || context.Request.IsAuthenticated == false)
//            //{
//            //    context.Response.StatusCode = 401;
//            //    context.Response.End(); 
//            //}
//            string[] fileKeys = context.Request.Files.AllKeys;
//            string fileName = "";
//            foreach (string fileKey in fileKeys)
//            {
//                HttpPostedFile file = context.Request.Files[fileKey];
//                string extension = file.FileName.Substring(file.FileName.LastIndexOf("."));
//                fileName = Guid.NewGuid() + extension;
//                file.SaveAs(context.Server.MapPath(@"~\img\" + fileName));
//            }
//            context.Response.ContentType = "text/plain";
//            context.Response.Write(fileName);
//        }
//        catch (Exception ex)
//        {
//            context.Response.ContentType = "text/plain";
//            context.Response.Write(ex.Message);
//        }     
//    }

//    public bool IsReusable
//    {
//        get
//        {
//            return false;
//        }
//    }
//}