using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.IO;

    class http
    {
        static void Main(string[] args)
        {
            var gallid = "programming";
            var gallnum = "" + 404863;
     
            HttpWebRequest client = WebRequest.Create("http://g...content-available-to-author-only...e.com/board/view/?id="+gallid+"&no=" + gallnum) as HttpWebRequest;
            HttpWebResponse res = client.GetResponse() as HttpWebResponse;

            var cookCode = res.GetResponseHeader("Set-Cookie");
            int st = cookCode.IndexOf("ci_c=") + 5;

            cookCode = cookCode.Substring(st, 32);
            Console.WriteLine(cookCode);

            StringBuilder PostContent = new StringBuilder();

            PostContent.Append("id=" + gallid);
            PostContent.Append("&no=" + gallnum);
            PostContent.Append("&memo=" + "test");
            PostContent.Append("&ci_t=" + cookCode);
            PostContent.Append("&name=" +"dd");
            PostContent.Append("&password=" + "123123");

          
            byte[] bp = Encoding.UTF8.GetBytes(PostContent.ToString());
         

            HttpWebRequest httpPost = HttpWebRequest.Create("http://g...content-available-to-author-only...e.com/forms/comment_submit") as HttpWebRequest;//WebRequest.Create("http://g...content-available-to-author-only...e.com/forms/comment_submit") as HttpWebRequest;
            httpPost.Method = "POST";
            httpPost.KeepAlive = true;
            httpPost.ContentLength = bp.Length;
            httpPost.Accept = "*/*";
            httpPost.Headers.Add("Accept-Encoding", "gzip,deflate,sdch");
            httpPost.Headers.Add("Accept-Language",
                    "ko-KR,ko;q=0.8,en-US;q=0.6,en;q=0.4");
            httpPost.ContentType = "application/x-www-form-urlencoded; charset=UTF-8";
            httpPost.Headers.Add("Origin", "http://g...content-available-to-author-only...e.com");
            httpPost.Referer =
                    "http://g...content-available-to-author-only...e.com/board/view/?id=" + gallid + "&no=" + gallnum;
            httpPost.UserAgent = "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/32.0.1700.107 Safari/537.36";
            httpPost.Headers.Add("X-Requested-With", "XMLHttpRequest");
            
            httpPost.Expect = null;
            
            using (var stream = httpPost.GetRequestStream())
            {
                stream.Write(bp, 0, bp.Length);
                stream.Close();
            }
            
            res = httpPost.GetResponse() as HttpWebResponse;
            System.IO.StreamReader instream = new System.IO.StreamReader(res.GetResponseStream());
            Console.WriteLine(instream.ReadToEnd());
        }

    }