using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Net;

using System.IO;



class HTTPWrapper

{

    private CookieContainer CookieJar = new CookieContainer();



    public String get(String URL)

    {

        try

        {

            HttpWebRequest Request = (HttpWebRequest)WebRequest.Create(URL);

            Request.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/534.10 (KHTML, like Gecko) Chrome/8.0.552.224 Safari/534.10";

            Request.CookieContainer = getCookies();



            HttpWebResponse Response = (HttpWebResponse)Request.GetResponse();

            setCookies(Response.Cookies);



            Stream RStream = Response.GetResponseStream();

            StreamReader SReader = new StreamReader(RStream);

            String Return = SReader.ReadToEnd();

            SReader.Close();

            RStream.Close();

            Response.Close();



            return Return;

        }

        catch (Exception ex) { }

        return String.Empty;

    }



    public String post(String URL, String PostData)

    {

        try

        {

            byte[] Sending = Encoding.UTF8.GetBytes(PostData);

            HttpWebRequest Request = (HttpWebRequest)WebRequest.Create(URL);

            Request.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/534.10 (KHTML, like Gecko) Chrome/8.0.552.224 Safari/534.10";

            Request.ContentType = "application/x-www-form-urlencoded";

            Request.ContentLength = Sending.Length;

            Request.CookieContainer = getCookies();

            Request.Method = "POST";



            Stream DStream = Request.GetRequestStream();

            DStream.Write(Sending, 0, Sending.Length);

            DStream.Close();



            HttpWebResponse Response = (HttpWebResponse)Request.GetResponse();

            setCookies(Response.Cookies);



            Stream RStream = Response.GetResponseStream();

            StreamReader SReader = new StreamReader(RStream);

            String Return = SReader.ReadToEnd();

            SReader.Close();

            RStream.Close();

            Response.Close();



            return Return;

        }

        catch (Exception ex) { }

        return String.Empty;

    }



    public void setCookies(CookieCollection Cookies)

    {

        foreach (Cookie c in Cookies)

        {

            CookieJar.Add(c);

        }

    }



    public CookieContainer getCookies ()

    {

        return CookieJar;

    }

}


Maintains all cookies/sessions within instance. Works fine multi-instanced.