模拟网站登陆

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Net;
namespace LoginWeb
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void button1_Click(object sender, EventArgs e)
{
HttpRec myrec = new HttpRec();
string PostDate = "txtUserAct=69022565&txtUserPwd=69022565&authencode=";
PostDate += myrec.GetCode();
CookieCollection c = myrec.ReturnCookies();
foreach (Cookie cook in c)
{
this.richTextBox1.Text += cook.Domain+"--"+cook.Name+"---"+cook.Value;

}
this.richTextBox1.Text +=PostDate+ myrec.LoginWeb(PostDate);
}
}
public class HttpRec
{
private CookieCollection _cookCollection;
private string _Url = "http://59.50.113.196:9080/personal/servlet/LoginServlet";
private string _refUrl = "http://59.50.113.196:9080/personal/interfaces/hainan/index.jsp";
private string _strErr;

public CookieCollection ReturnCookies()
{
//if (_cookCollection != null)
//{

//}
return _cookCollection;
}
public string GetCode()
{
HttpWebRequest rqq = (HttpWebRequest)HttpWebRequest.Create("Http://59.50.113.196:9080/security/servlet/AuthenCodeImage");
rqq.Method = "Get";
rqq.KeepAlive = true;
// rqq.Referer = _refUrl;
if (rqq.CookieContainer == null)
{
rqq.CookieContainer = new CookieContainer();
}
HttpWebResponse rpp = (HttpWebResponse)rqq.GetResponse();
Image img = Bitmap.FromStream(rpp.GetResponseStream());
_cookCollection = rpp.Cookies;

//  img.Save(Environment.CurrentDirectory+"//1.bmp",System.Drawing.Imaging.ImageFormat.Bmp);
return ChuLiImg((Bitmap)img);
}

public static string ChuLiImg(Bitmap img)
{
Rectangle[] RcArr = new Rectangle[4];
Rectangle RC1 = new Rectangle(4, 4, 6, 9);
Rectangle RC2 = new Rectangle(11, 4, 6, 9);
Rectangle RC3 = new Rectangle(18, 4, 6, 9);
Rectangle RC4 = new Rectangle(25, 4, 6, 9);
RcArr[0] = RC1;
RcArr[1] = RC2;
RcArr[2] = RC3;
RcArr[3] = RC4;
Bitmap[] bit = new Bitmap[4];
string CodeStr = string.Empty;
for (int i = 0; i < 4; i++)
{
string str =GetImgStr(ClearBg(img), RcArr[i]);
bit[i] = ((Bitmap)img).Clone(RcArr[i], img.PixelFormat);
if (str == "0111111111111111100000001000000011111111")
{
CodeStr += "0";
}
if (str == "0000000000110000011000001111111111111111")
{
CodeStr += "1";
}
if (str == "0100000111000011100001101000110011111000")
{
CodeStr += "2";
}
if (str == "0100000111000001100100001001000011111111")
{
CodeStr += "3";
}
if (str == "0000011000011010011000101111111111111111")
{
CodeStr += "4";
}
if (str == "0011100111111001110100001001000010011111")
{
CodeStr += "5";
}
if (str == "0011111101111111100100001001000011011111")
{
CodeStr += "6";
}
if (str == "1000000010000011100011111011110011110000")
{
CodeStr += "7";
}
if (str == "0111011111111111100010001000100011111111")
{
CodeStr += "8";
}
if (str == "0111100111111101100001001000010011111111")
{
CodeStr += "9";
}
}
return CodeStr;

}
public static string GetImgStr(Bitmap Bigimg, Rectangle Rc)
{
Bitmap RCBmp = Bigimg.Clone(Rc, Bigimg.PixelFormat);
string str = "";
for (int w = 0; w < Rc.Width - 1; w++)
{
for (int h = 0; h < Rc.Height - 1; h++)
{

if (RCBmp.GetPixel(w, h).ToArgb() == Color.Black.ToArgb())
{

str += "1";
}
else
{
str += "0";
}
}
}
return str;
}
private  static Bitmap ClearBg(Image Img)
{
Bitmap Smallimg = new Bitmap(Img);
for (int w = 0; w < Smallimg.Width - 1; w++)
{
for (int h = 0; h < Smallimg.Height - 1; h++)
{

if (Smallimg.GetPixel(w, h).ToArgb() < (Color.Black.ToArgb() * 0.4))
{

Smallimg.SetPixel(w, h, Color.Black);
}
else
{
Smallimg.SetPixel(w, h, Color.White);
}
}
}
return Smallimg;
}

public string LoginWeb(string PostData)
{
string str = string.Empty;
HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(_Url);//创建req
req.Accept = "*/*"; //接受任意文件
req.UserAgent = " Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; EmbeddedWB 14.52 from: http://www.bsalsa.com/ EmbeddedWB 14.52; .NET CLR 2.0.50727)"; // 模拟使用IE在浏览
// req.KeepAlive = true;
req.Referer = "http://59.50.113.196:9080/personal/interfaces/hainan/index.jsp";

if (req.CookieContainer == null)
{
req.CookieContainer = new CookieContainer();
}
if (this._cookCollection != null)
{
System.Uri u = new Uri("http://59.50.113.196:9080/personal/servlet/LoginServlet");
//doenet处理cookie的bug：请求的服务器和cookie的Host必须一直，否则不发送或获取！

//这里修改成一致！
foreach (System.Net.Cookie c in _cookCollection)
{
c.Domain = u.Host;
}

req.CookieContainer.Add(_cookCollection);
}

req.CookieContainer.Add(_cookCollection);
// req.CookieContainer.SetCookies(new Uri("59.50.113.196"),_cookCollection["d"].Value);
if (PostData != null & PostData.Length > 0)
{
req.Method = "POST";
req.ContentType = "application/x-www-form-urlencoded";

byte[] b = Encoding.Default.GetBytes(PostData);
req.ContentLength = b.Length;
req.AutomaticDecompression = DecompressionMethods.GZip;
System.IO.Stream sw = null;
try
{
sw = req.GetRequestStream();
sw.Write(b, 0, b.Length);
}
catch (System.Exception ex)
{
this._strErr = ex.Message;
}
finally
{
if (sw != null) { sw.Close(); }
}
}
HttpWebResponse rep = null;
System.IO.StreamReader sr = null;
try
{
rep = (HttpWebResponse)req.GetResponse();
_cookCollection = rep.Cookies;
sr = new System.IO.StreamReader(rep.GetResponseStream(), Encoding.Default);
str = sr.ReadToEnd();
if (sr != null)
{
sr.Close();
}

}
catch (Exception e)
{ MessageBox.Show(e.Message); }

return str;
}
}

}