Капча турбобит

[IgrikX]

Пытаюсь написать скачивалку для turbobit. Выдираю капчу, но при вводе капчи, пишет мол не верно распознано, как решить проблему.?

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Net;
using System.Text.RegularExpressions;

namespace turbobit
{
public partial class Form1 : Form
{
//-----------------------------------------------------------------------
private string turbobit_get(string url, string user_agent, string reffer)
{

HttpWebRequest url_turbobit = (HttpWebRequest)WebRequest.Create(url);
url_turbobit.CookieContainer = cookies;
url_turbobit.Referer = reffer;
url_turbobit.UserAgent = user_agent;
HttpWebResponse res_turbobit = (HttpWebResponse)url_turbobit.GetResponse();
cookies = url_turbobit.CookieContainer;
Stream stream_turbobit = res_turbobit.GetResponseStream();
StreamReader read_stream_turbobit = new StreamReader(stream_turbobit);
string str_turbobit = read_stream_turbobit.ReadToEnd();
return str_turbobit;
}

private string turbobit_post(string url, string user_agent, string reffer, string post)
{

HttpWebRequest url_turbobit = (HttpWebRequest)WebRequest.Create(url);
url_turbobit.Referer = reffer;
url_turbobit.CookieContainer = cookies;
url_turbobit.UserAgent = user_agent;
url_turbobit.AllowAutoRedirect = true;
url_turbobit.Method = "POST";
byte[] byte_post = System.Text.Encoding.ASCII.GetBytes(post);
url_turbobit.ContentLength = byte_post.Length;
Stream stream_turbobit = url_turbobit.GetRequestStream();
stream_turbobit.Write(byte_post, 0, byte_post.Length);
stream_turbobit.Close();
HttpWebResponse res_turbobit = (HttpWebResponse)url_turbobit.GetResponse();
cookies = url_turbobit.CookieContainer;
richTextBox1.Text = res_turbobit.Cookies[0].ToString();
Stream stream_turbobit_2 = res_turbobit.GetResponseStream();
StreamReader read_stream_turbobit = new StreamReader(stream_turbobit_2);
string str_turbobit = read_stream_turbobit.ReadToEnd();
return str_turbobit;
}

private string url = "http://turbobit.net/jswesvvba30d.html";
private string user_agent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; ru; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3";
private string reffer = "";
private string captcha_response = "";// разгадывание капчи
private string captcha_type = "";// тип капчи
private string captcha_subtype = "";// допольнительный параметр
CookieContainer cookies = new CookieContainer();

//-------------------------------------------------------------------------
public Form1()
{
InitializeComponent();
}

private void Form1_Load(object sender, EventArgs e)
{

}

private void button1_Click(object sender, EventArgs e)
{
// строки нужно переинициализовать
url = "http://turbobit.net/jswesvvba30d.html";
user_agent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; ru; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3";
reffer = "";
captcha_response = "";// разгадывание капчи
captcha_type = "";// тип капчи
captcha_subtype = "";// допольнительный параметр
//--------------------------------
string str_html = turbobit_get(url,user_agent,reffer);
reffer = url;// рефером становиться адрес на который мы перешли
// выдираем сслку для дальнейшего перехода
Match free_url = Regex.Match(str_html,"class=\"free\" href=\"(.+?)\"");
// установливаем ссылку для дальнейшего перехода
url = "http://turbobit.net" + free_url.Groups[1].Value;
// отправляем get запрос
str_html = turbobit_get(url, user_agent, reffer);
reffer = url;// рефером становиться адрес на который мы перешли
url = reffer + "#"; // устанавливаем урл для дальнейшего использования
richTextBox1.Text = str_html;
// выдираем капчу
Match captha = Regex.Match(str_html, "alt=\"Captcha\" src=\"(.+?)\"");
string url_captha = captha.Groups[1].Value;// url к капче
//выдираем дополнительтные параметры
Match captcha_type_s = Regex.Match(str_html, "value = '(.+?)' name = 'captcha_type'");
captcha_type = captcha_type_s.Groups[1].Value;
Match captcha_subtype_s = Regex.Match(str_html, "value = '(.+?)' name = 'captcha_subtype'");
captcha_subtype = captcha_subtype_s.Groups[1].Value;
//----------------------------------
try
{
// выводи капчу в imageBox
HttpWebRequest url_turbobit = (HttpWebRequest)WebRequest.Create(url_captha);
url_turbobit.Referer = reffer;
url_turbobit.CookieContainer = cookies;
url_turbobit.UserAgent = user_agent;
HttpWebResponse res_turbobit = (HttpWebResponse)url_turbobit.GetResponse();
Stream stream_turbobit = res_turbobit.GetResponseStream();
pictureBox1.Image = Image.FromStream(stream_turbobit);
richTextBox2.Text = "Капча найдена!";
}
catch (Exception)
{
richTextBox2.Text = "Капча не найдена!";
}

}

private void button2_Click(object sender, EventArgs e)
{
// POSTDATA=captcha_response=NUPP&captcha_type=securimg&captcha_subtype=9
captcha_response = textBox1.Text;
richTextBox2.Text = captcha_type;
richTextBox3.Text = captcha_subtype;
richTextBox4.Text = reffer;
richTextBox5.Text = reffer+"#";
string post = "captcha_response="+captcha_response+"&captcha_type="+captcha_type+"&captcha_subtype="+captcha_subtype;
richTextBox6.Text = post;
string test = turbobit_post(url, user_agent, reffer, post);
}

}
}