C# 通过C登录网站#

我已经尝试了我能在网上找到的关于如何实现这一点登录到这个网站的一切。这是最近的一次失败

 // I have tried with multiple different URLS this one 
 // and http://www.movable.com/login do not throw errors
 string url = "http://portal.movable.com/";
 string username = "<myusername>";
 string password = "<mypassword>";
 string authTok = @"+HOt3NTkkIAHkMSMvzQisEquhun9xvIG1mHzIEh6CAo=";
 string postData = "utf8=✓" + "&authenticity_token=" + authTok +
      "&user[login]=" + username + 
      "&user[password]=" + password + "&user[offset]=-5";

var container = new CookieContainer();
var buffer = Encoding.UTF8.GetBytes(postData);

var request = (HttpWebRequest)HttpWebRequest.Create(url);
request.CookieContainer = container;
request.UserAgent = "Mozilla/5.0";
request.Method = "POST";
request.KeepAlive = true;
request.AllowAutoRedirect = true;
request.CookieContainer = container;
request.ContentLength = buffer.Length;
request.ContentType = "application/x-www-form-urlencoded; charset=UTF-8";
request.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";

using (var requestStream = request.GetRequestStream())
    requestStream.Write(buffer, 0, buffer.Length);

using (var response = request.GetResponse())
{

        using (var reader = new StreamReader(response.GetResponseStream()))
        {
            var result = reader.ReadToEnd();
            //this is to read the page source after the request
            MessageBox.Show(result); 
        }             
}

//我尝试了多个不同的URL，这一个
//及http://www.movable.com/login 不要抛出错误
字符串url=”http://portal.movable.com/";
字符串username=“”；
字符串密码=”；
字符串authTok=@“+hot3ntkkiahkmsvzqisequehun9xvig1mhzieh6cao=”；
string postData=“utf8=✓" + "&真实性令牌=“+authTok”+
“&用户[登录]=”+用户名+
“&user[密码]=”+密码+“&user[偏移量]=-5”；
var container=新的CookieContainer（）；
var buffer=Encoding.UTF8.GetBytes（postData）；
var request=（HttpWebRequest）HttpWebRequest.Create（url）；
request.CookieContainer=容器；
request.UserAgent=“Mozilla/5.0”；
request.Method=“POST”；
request.KeepAlive=true；
request.AllowAutoRedirect=true；
request.CookieContainer=容器；
request.ContentLength=buffer.Length；
request.ContentType=“application/x-www-form-urlencoded；charset=UTF-8”；
request.Accept=“text/html，application/xhtml+xml，application/xml；q=0.9，*/*；q=0.8”；
使用（var requestStream=request.GetRequestStream（））
Write（buffer，0，buffer.Length）；
使用（var response=request.GetResponse（））
{
使用（var reader=newstreamreader（response.GetResponseStream（））
{
var result=reader.ReadToEnd（）；
//这是在请求后读取页面源代码
MessageBox.Show（结果）；
}             
}

这里还有来自该站点的相关数据（我知道在这个示例中令牌是不同的，我将它们设置为相同的，但它不起作用）

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尝试以下方法：

        var cookieJar = new CookieContainer();
        CookieAwareWebClient client = new CookieAwareWebClient(cookieJar);

        // the website sets some cookie that is needed for login, and as well the 'authenticity_token' is always different
        string response = client.DownloadString("http://portal.movable.com/signin");

        // parse the 'authenticity_token' and cookie is auto handled by the cookieContainer
        string token = Regex.Match(response, "authenticity_token.+?value=\"(.+?)\"").Groups[1].Value;
        string postData =
            string.Format("utf8=%E2%9C%93&authenticity_token={0}&user%5Blogin%5D=USERNAME&user%5Bpassword%5D=PASSWORD&user%5Boffset%5D=5.5&user%5Bremember_me%5D=0&button=", token);


        //WebClient.UploadValues is equivalent of Http url-encode type post
        client.Method = "POST";
        response = client.UploadString("http://portal.movable.com/signin", postData);


        //i am getting invalid user/pass, but i am sure it will work fine with normal user/password

    }

使用的额外类：

public class CookieAwareWebClient : WebClient
{
    public string Method;
    public CookieContainer CookieContainer { get; set; }
    public Uri Uri { get; set; }

    public CookieAwareWebClient()
        : this(new CookieContainer())
    {
    }

    public CookieAwareWebClient(CookieContainer cookies)
    {
        this.CookieContainer = cookies;
    }

    protected override WebRequest GetWebRequest(Uri address)
    {
        WebRequest request = base.GetWebRequest(address);
        if (request is HttpWebRequest)
        {
            (request as HttpWebRequest).CookieContainer = this.CookieContainer;
            (request as HttpWebRequest).ServicePoint.Expect100Continue = false;
            (request as HttpWebRequest).UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0";
            (request as HttpWebRequest).Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";
            (request as HttpWebRequest).Headers.Add(HttpRequestHeader.AcceptLanguage, "en-US,en;q=0.5");
            (request as HttpWebRequest).Referer = "http://portal.movable.com/signin";
            (request as HttpWebRequest).KeepAlive = true;
            (request as HttpWebRequest).AutomaticDecompression = DecompressionMethods.Deflate |
                                                                 DecompressionMethods.GZip;
            if (Method == "POST")
            {
                (request as HttpWebRequest).ContentType = "application/x-www-form-urlencoded";
            }

        }
        HttpWebRequest httpRequest = (HttpWebRequest)request;
        httpRequest.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;
        return httpRequest;
    }

    protected override WebResponse GetWebResponse(WebRequest request)
    {
        WebResponse response = base.GetWebResponse(request);
        String setCookieHeader = response.Headers[HttpResponseHeader.SetCookie];

        if (setCookieHeader != null)
        {
            //do something if needed to parse out the cookie.
            try
            {
                if (setCookieHeader != null)
                {
                    Cookie cookie = new Cookie(); //create cookie
                    this.CookieContainer.Add(cookie);
                }
            }
            catch (Exception)
            {

            }
        }
        return response;

    }
}

收到的答复

<!DOCTYPE html>
<html>
<head>
  <title>MOVband Portal</title>
  <link href="/assets/application-f9d3794ad4639d96cd50c115ad241438.css" media="all" rel="stylesheet" type="text/css" />
  <!--[if lt IE 9]>
    <script src="/assets/modernizr-9b693978fbc3fcd01874b01875a736bf.js" type="text/javascript"></script>
    <script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
  <![endif]-->
  <!--[if IE 7]>
    <link href="/assets/ie7-ca67da697ba8da1de77889ceedc4db1a.css" media="all" rel="stylesheet" type="text/css" />
  <![endif]-->
  <script src="/assets/application-b1fcaae48e75e2455cf45e1d75983267.js" type="text/javascript"></script>
  <meta content="authenticity_token" name="csrf-param" />
<meta content="aC33zdBSSAz63dVjOgYXR/L6skV/QxxHe4XqX3UYCek=" name="csrf-token" />
</head>
<body id="login">
  <header>
    <div class="container">
      <a href="http://movable.com">
        <img alt="Movablelogo" class="logo" src="/assets/movableLogo-3429bb636ded1af0a80951c7d4386770.png" />
</a>    </div>
  </header>

  <section class="main">
    <div class="container">
      <div id="loginWindow" class="cf">
  <img alt="Movbandlogologin" class="movbandlogo" src="/assets/MOVbandLogologin-3cacbbe2b9bb05b16a3ca521acf81fc6.png" />
  <div class="cf">
    <div id="welcomeMessage">
      <h1>Welcome</h1>

      <img alt="Movbanddevice" class="device" src="/assets/MOVbandDevice-acbb62593330775ac09dced40e28e8e2.png" />
      <p>
        Just got your MOVband? We'll have you moving in no time with our quick product registration and setup.
        <a href="/join">Join &gt;</a>
      </p>
    </div>
    <form accept-charset="UTF-8" action="/signin" class="new_user" id="new_user" method="post"><div style="margin:0;padding:0;display:inline"><input name="utf8" type="hidden" value="&#x2713;" /><input name="authenticity_token" type="hidden" value="aC33zdBSSAz63dVjOgYXR/L6skV/QxxHe4XqX3UYCek=" /></div>

        <p class="alert">Invalid email or password.</p>

      <h2>login to your account</h2>

      <label for="user_login">Login</label>
      <input id="user_login" name="user[login]" size="30" type="text" value="USERNAME" />
      <label for="user_password">Password</label>
      <input id="user_password" name="user[password]" size="30" type="password" />

      <input id="user_offset" name="user[offset]" type="hidden" value="5.5" />


      <label for="user_remember_me">
        <input name="user[remember_me]" type="hidden" value="0" /><input id="user_remember_me" name="user[remember_me]" type="checkbox" value="1" /> 
        Remember me on this computer.
</label>
      <button class="login" name="button" type="submit">Login</button>
        <a href="/users/password/new" class="forgotPassword">Forgot password?</a>
</form>  </div>
</div>

    </div>
  </section>

  <footer>
    <div class="container">
      <div class="social_icons">
        <a href="https://www.facebook.com/getMOVband" class="fb_link" target="_blank"></a>
        <a href="https://twitter.com/getmovband" class="tw_link" target="_blank"></a>
        <a href="http://www.youtube.com/getmovband" class="yt_link" target="_blank"></a>
        <a href="http://www.linkedin.com/company/2355960" class="li_link" target="_blank"></a>
      </div>
    </div>
  </footer>
</body>
</html>

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示例HTML表单显示该表单已发布到/登录。尝试将您的url更改为。我尝试过此操作，但它会抛出一个错误。事实上，它在过去抛出了一个错误，现在它只会像所有其他页面一样将我返回到登录页面。因此，每个页面都可以动态生成Authentity_令牌，以防止跨站点伪造。如果是这样的话，你就不会有一个有效的令牌，除非你先请求登录页面，然后刮取令牌进行后续登录尝试。这也是我考虑过的。最初我构建它是为了先获取auth令牌，直到我意识到它只在30分钟左右的时间后才改变。是的！这工作完美！用3句或更少的话，你能指出我做错了什么吗？

//网站设置了一些登录所需的cookie，而且“authenticity\u token”总是不同的

，因此在发送POST请求之前，需要GET请求来设置默认cookie<代码>Cookie:_WebClient_session=bah7bkid3nlc3npb25fawqgogzfrkkijtc5mtdkyjkwdaznwzmjrinzjjjknwjmjk3gnkbjsavekief9jc3jmx3jrv2vubjmkimwfdmzn6zejtu0f6njnkvmppz1lyui9mnnnrvi9rehizmjzmjzmjzmjzmj3d%3D-6f32e8ef689fd9d04157c9c7c7e7669aad08d0f请求后缺少此标头！太棒了，非常感谢你。这件事我已经逃避了一段时间。如果我能投两次票，我会的would@AMR-没关系！我已经做这项工作很长时间了，所以我总是检查这些东西！

<!DOCTYPE html>
<html>
<head>
  <title>MOVband Portal</title>
  <link href="/assets/application-f9d3794ad4639d96cd50c115ad241438.css" media="all" rel="stylesheet" type="text/css" />
  <!--[if lt IE 9]>
    <script src="/assets/modernizr-9b693978fbc3fcd01874b01875a736bf.js" type="text/javascript"></script>
    <script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
  <![endif]-->
  <!--[if IE 7]>
    <link href="/assets/ie7-ca67da697ba8da1de77889ceedc4db1a.css" media="all" rel="stylesheet" type="text/css" />
  <![endif]-->
  <script src="/assets/application-b1fcaae48e75e2455cf45e1d75983267.js" type="text/javascript"></script>
  <meta content="authenticity_token" name="csrf-param" />
<meta content="aC33zdBSSAz63dVjOgYXR/L6skV/QxxHe4XqX3UYCek=" name="csrf-token" />
</head>
<body id="login">
  <header>
    <div class="container">
      <a href="http://movable.com">
        <img alt="Movablelogo" class="logo" src="/assets/movableLogo-3429bb636ded1af0a80951c7d4386770.png" />
</a>    </div>
  </header>

  <section class="main">
    <div class="container">
      <div id="loginWindow" class="cf">
  <img alt="Movbandlogologin" class="movbandlogo" src="/assets/MOVbandLogologin-3cacbbe2b9bb05b16a3ca521acf81fc6.png" />
  <div class="cf">
    <div id="welcomeMessage">
      <h1>Welcome</h1>

      <img alt="Movbanddevice" class="device" src="/assets/MOVbandDevice-acbb62593330775ac09dced40e28e8e2.png" />
      <p>
        Just got your MOVband? We'll have you moving in no time with our quick product registration and setup.
        <a href="/join">Join &gt;</a>
      </p>
    </div>
    <form accept-charset="UTF-8" action="/signin" class="new_user" id="new_user" method="post"><div style="margin:0;padding:0;display:inline"><input name="utf8" type="hidden" value="&#x2713;" /><input name="authenticity_token" type="hidden" value="aC33zdBSSAz63dVjOgYXR/L6skV/QxxHe4XqX3UYCek=" /></div>

        <p class="alert">Invalid email or password.</p>

      <h2>login to your account</h2>

      <label for="user_login">Login</label>
      <input id="user_login" name="user[login]" size="30" type="text" value="USERNAME" />
      <label for="user_password">Password</label>
      <input id="user_password" name="user[password]" size="30" type="password" />

      <input id="user_offset" name="user[offset]" type="hidden" value="5.5" />


      <label for="user_remember_me">
        <input name="user[remember_me]" type="hidden" value="0" /><input id="user_remember_me" name="user[remember_me]" type="checkbox" value="1" /> 
        Remember me on this computer.
</label>
      <button class="login" name="button" type="submit">Login</button>
        <a href="/users/password/new" class="forgotPassword">Forgot password?</a>
</form>  </div>
</div>

    </div>
  </section>

  <footer>
    <div class="container">
      <div class="social_icons">
        <a href="https://www.facebook.com/getMOVband" class="fb_link" target="_blank"></a>
        <a href="https://twitter.com/getmovband" class="tw_link" target="_blank"></a>
        <a href="http://www.youtube.com/getmovband" class="yt_link" target="_blank"></a>
        <a href="http://www.linkedin.com/company/2355960" class="li_link" target="_blank"></a>
      </div>
    </div>
  </footer>
</body>
</html>