使用c#和HTTPrequest登录网站

Question

我想使用c#通过HTTPrequest登录网站。我已经在谷歌和这个论坛上搜索过了，但我仍然有一些问题。这是我的代码：

using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Forms;
using System.Net;
using System.IO;
namespace BodytelConnection
{
/// <summary>
/// Interaktionslogik für MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();
        webBrowser1.Navigate("http://www.bodytel.com/");
    }

    private void loginBtn_Click(object sender, RoutedEventArgs e)
    {
        string benutzername = textBox_benutzername.ToString();   // used just for test
        string passwort = textBox_passwort.ToString();
        string cookieHeader;
        passwort = changeString(passwort);
        benutzername = changeString(benutzername);
        HttpWebRequest req =                                                          (HttpWebRequest)HttpWebRequest.Create("http://www.bodytel.com/");
        req.UserAgent = "Mozilla/5.0 (Windows NT 6.1;rv:15.0) Gecko/20100101 Firefox/15.0)";
        req.Method = "POST";
        req.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";
        req.Headers.Add("Accept-Language: de-de,de;q=0.8,en-us;q=0.5,en;q=0.3");
        req.Headers.Add("Accept-Encoding: gzip,deflate");
        req.Headers.Add("Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7");
        req.KeepAlive = true;
        req.Headers.Add("Keep-Alive: 300");
        req.Referer = "https://secure.bodytel.com/de/mybodytel.html";
        req.AllowAutoRedirect = true;
        req.ContentType = "application/x-www-form-urlencoded";
        byte[] bytes = Encoding.ASCII.GetBytes("login=[e-mail]%password=xxxxxstep=login");
        req.ContentLength = bytes.Length;
        using (Stream os = req.GetRequestStream())
        {
            os.Write(bytes, 0, bytes.Length);
        }
        WebResponse resp = req.GetResponse();
        cookieHeader = resp.Headers["Set-cookie"];
        webBrowser1.Navigate("https://secure.bodytel.com/de/mybodytel.html");
    }
    private string changeString(string myString)
    {
        myString = myString.Replace("System.Windows.Controls.TextBox: " ,"");
        return myString;
    }

    }
}

我无法登录该网站，我只是不知道问题出在哪里。我如何登录该网站？

谢谢；）

Answer 1

如果SSL没有任何问题，并且您实际上从服务器收到了有效的响应，则可以尝试正确编码您的值：

string loginstr = string.Format("login={0}&password={1}&step=login",
    HttpUtility.UrlEncode("[e-mail]"),
    HttpUtility.UrlEncode("xxxxx"));
byte[] bytes = Encoding.ASCII.GetBytes(loginstr);

Answer 2

我解决了这个问题。

这是代码：

using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Forms;
using System.Net;
using System.IO;
using System.Web;
namespace BodytelConnection{
/// <summary>
/// Interaktionslogik für MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();
        webBrowser1.Navigate("http://www.bodytel.com/");
    }
    private void textBox_benutzername_TextChanged(object sender, TextChangedEventArgs e)
    {
    }
    private void textBox_passwort_TextChanged(object sender, TextChangedEventArgs e)
    {
    }
    private void loginBtn_Click(object sender, RoutedEventArgs e)
    {
        string benutzername = textBox_benutzername.ToString();
        string passwort = textBox_passwort.ToString();
        string cookieHeader;
        passwort = changeString(passwort);
        benutzername = changeString(benutzername);
        HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create("https://secure.bodytel.com/de/mybodytel.html");
        CookieContainer cookieContainer = new CookieContainer();
        request.CookieContainer = cookieContainer;
        request.Method = "POST";
        string postData = "login=[e-mail]&password=xxxxx&step=login";
        byte[] byteArray = Encoding.UTF8.GetBytes(postData);
        request.ContentType = "application/x-www-form-urlencoded";
        request.ContentLength = byteArray.Length;
        Stream dataStream = request.GetRequestStream();
        dataStream.Write(byteArray, 0, byteArray.Length);
        dataStream.Close();
        HttpWebResponse response = (HttpWebResponse)request.GetResponse();
        string Text = "";
        foreach (Cookie cook in response.Cookies)
        {
            Text += "COOKIE: " + cook.Name + " = " + cook.Value + "rn";
        }
        request.AllowAutoRedirect = false;
        dataStream = response.GetResponseStream();
        StreamReader reader = new StreamReader(dataStream);
        string responseFromServer = reader.ReadToEnd();
        reader.Close();
        dataStream.Close();
        response.Close();
        webBrowser1.Navigate("https://secure.bodytel.com/de/mybodytel.html");
    }
    private string changeString(string myString)
    {
        myString = myString.Replace("System.Windows.Controls.TextBox: ", "");
        return myString;
    }

}
}

Answer 3

看起来您使用了错误的URL登录。当我在chrome中使用登录表单并查看它发送的内容时，它看起来是这样的：

Chrome Networktab

所以它的登录结束了"https://secure.bodytel.com/de/mybodytel.html".我不知道HttpWebRequest是否可以像那样管理SSL连接，但在创建WebRequest对象时需要使用此链接。