C#
- Code: Select all
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;
using System.IO;
namespace Socket
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
string formkey = "";
string html = "";
int indexformkey = 0;
Post post = new Post(textBox1);
post.nick = "ingenium";
post.url = "http://www.hackthissite.org";
html = post.go();
for (indexformkey = 0; indexformkey < html.Length; indexformkey++)
{
if (html[indexformkey + 1] == 'f' && html[indexformkey + 2] == 'o' && html[indexformkey + 3] == 'r' && html[indexformkey + 4] == 'm' && html[indexformkey + 5] == 'k' && html[indexformkey + 6] == 'e' && html[indexformkey + 7] == 'y')
{
indexformkey += 17;
break;
}
}
for (; html[indexformkey] != '"'; indexformkey++)
{
formkey += html[indexformkey];
}
post.log(textBox1,"Chiave del form: " + Environment.NewLine + formkey);
post.url = "http://www.hackthissite.org/pages/index/index2.php";
post.content = "formkey="+formkey+"%3D%3D&txt_username=ingenium&txt_password=*****&btn_submit=Login";
post.login();
post.url = "http://www.hackthissite.org/missions/prog/11/";
html = post.go();
post.log(textBox1, html);
}
}
public class Post
{
#region varaibles
private string _url = "";
private string _content = "";
private string _nick = "";
private CookieContainer _cookie = new CookieContainer();
private HttpWebRequest _request;
private HttpWebResponse _response;
private TextBox textbox;
#endregion
#region get&set
public string url
{
get
{
return _url;
}
set
{
_url = value;
}
}
public string content
{
get
{
return _content;
}
set
{
_content = value;
}
}
public string nick
{
get
{
return _nick;
}
set
{
_nick = nick;
}
}
public HttpWebRequest request
{
get
{
return _request;
}
set
{
_request = value;
}
}
public HttpWebResponse response
{
get
{
return _response;
}
set
{
_response = value;
}
}
public CookieContainer cookie
{
get
{
return _cookie;
}
set
{
_cookie = value;
}
}
#endregion
/// <summary>
/// costruttore
/// </summary>
/// <param name="textbox"></param>
public Post(TextBox textbox)
{
this.textbox = textbox;
log(textbox, "Avviata procedura di log in");
}
/// <summary>
/// logga in un sito web
/// </summary>
public void login()
{
try
{
_request = (HttpWebRequest)WebRequest.Create(_url);
}
catch (Exception ex)
{
log(textbox, "Sito web non trovato");
}
_request.CookieContainer = new CookieContainer();
byte[] buffer = new ASCIIEncoding().GetBytes(_content);
_request.ContentType = "application/x-www-form-urlencoded";
_request.Method = "POST";
_request.ContentLength = content.Length;
try
{
Stream strContent = _request.GetRequestStream();
strContent.Write(buffer, 0, buffer.Length);
strContent.Close();
_response = (HttpWebResponse)_request.GetResponse();
_cookie.Add(_response.ResponseUri, _response.Cookies);
StreamReader strResponse = new StreamReader(_response.GetResponseStream());
string output = strResponse.ReadToEnd();
strResponse.Close();
if (output.Contains(nick))
{
log(textbox, "Log In effettuato");
log(textbox, "Cookie: " + Environment.NewLine + _cookie.GetCookieHeader(response.ResponseUri));
}
else
{
log(textbox, "Log In fallito");
log(textbox, output);
}
_request.Abort();
_response.Close();
}
catch (Exception ex)
{
log(textbox, "Il tentativo di connessione al sito web è fallito. Controllare l'indirizzo immesso.");
}
}
/// <summary>
/// va ad una pagina web, da usare dopo essersi loggati
/// </summary>
public string go()
{
_request = (HttpWebRequest)WebRequest.Create(_url);
_request.CookieContainer = cookie;
try
{
HttpWebResponse _response = (HttpWebResponse)_request.GetResponse();
StreamReader strResponse = new StreamReader(_response.GetResponseStream());
string output = strResponse.ReadToEnd();
log(textbox, "Connessione al sito web riuscita");
return output;
}
catch (Exception ex)
{
log(textbox, "Il tentativo di connessione al sito web è fallito. Controllare l'indirizzo immesso");
return "fail";
}
}
/// <summary>
/// è solo una funzione che permette di capire
/// cosa sta accadendo
/// </summary>
/// <param name="target"> textbox dove viene scritto il log </param>
/// <param name="output"> contenuto del log </param>
public void log(TextBox target, string output)
{
target.Text = target.Text + output + Environment.NewLine + "--------------" + Environment.NewLine;
}
}
}
Using this code i can log in, and it is ok, but when i try to get the html code from http://www.hackthissite.org/missions/prog/11/ with post.go() hackthissite.org replies that i need to be authed to access... why? i am quite sure that i am passing the right cookie
P.s. It is coded in Visual C#!!!
