0

语言：C#
开发环境：Visual Studio 2008

我想登录一个网站并从那里获取一些数据。我的问题是 Cookie 不起作用。每次网站说我应该激活 Cookie，但我通过 Cookie 容器激活了 Cookie。

我多次嗅探流量以了解登录进度，我认为那里没有问题。我尝试了不同的登录方法，我搜索了其他人是否有此问题但没有结果...

登录页面是：“www.uploaded.to”，这是我的短格式登录代码：

        private void login()
        {
        //Global CookieContainer for all the Cookies
        CookieContainer _cookieContainer = new CookieContainer();

        //First Login to the Website
        HttpWebRequest _request1 = (HttpWebRequest)WebRequest.Create("http://uploaded.to/login");
        _request1.Method = "POST";
        _request1.CookieContainer = _cookieContainer;

        string _postData = "email=XXXXX&password=XXXXX";
        byte[] _byteArray = Encoding.UTF8.GetBytes(_postData);

        Stream _reqStream = _request1.GetRequestStream();

        _reqStream.Write(_byteArray, 0, _byteArray.Length);
        _reqStream.Close();

        HttpWebResponse _response1 = (HttpWebResponse)_request1.GetResponse();
        _response1.Close();


        //########################

        //Follow the Link from Request1
        HttpWebRequest _request2 = (HttpWebRequest)WebRequest.Create("http://uploaded.to/login?coo=1");
        _request2.Method = "GET";
        _request2.CookieContainer = _cookieContainer;

        HttpWebResponse _response2 = (HttpWebResponse)_request2.GetResponse();
        _response2.Close();


        //#######################

        //Get the Data from the Page after Login
        HttpWebRequest _request3 = (HttpWebRequest)WebRequest.Create("http://uploaded.to/home");
        _request3.Method = "GET";
        _request3.CookieContainer = _cookieContainer;

        HttpWebResponse _response3 = (HttpWebResponse)_request3.GetResponse();
        _response3.Close();

        }

好几个星期以来我一直被这个问题困扰，我没有找到有效的解决方案，请帮助......

我又试了一次，现在第一个请求工作（登录）。我得到一个带有身份验证的 cookie。响应文本是 url： http: //uploaded.to/login ?coo= 1 现在我必须在这个 url 上发出一个 GET 请求但问题是，它在这个请求中没有发送任何 cookie，用 Wireshark 检查。cookie 有 httpwebrequest 问题吗？

我的代码：

CookieContainer _cookieContainer = new CookieContainer();

        //First Login to the Website
        HttpWebRequest _request1 = (HttpWebRequest)WebRequest.Create("http://uploaded.to/login");
        _request1.Method = "POST";
        _request1.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";
        _request1.AllowAutoRedirect = false;
        _request1.CookieContainer = _cookieContainer;
        _request1.ContentType = "application/x-www-form-urlencoded";
        _request1.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.9.2) Gecko/20100115 Firefox/3.6 (.NET CLR 3.5.30729)";
        _request1.Headers.Add(HttpRequestHeader.CacheControl, "no-cache=set-cookie");

        string _postData = "email=XXXXX&password=XXXXXX";
        byte[] _byteArray = Encoding.UTF8.GetBytes(_postData);
        _request1.ContentLength = _byteArray.Length;

        Stream _reqStream = _request1.GetRequestStream();
        _reqStream.Write(_byteArray, 0, _byteArray.Length);
        _reqStream.Close();



        HttpWebResponse _response1 = (HttpWebResponse)_request1.GetResponse();
        StreamReader _reader1 = new StreamReader(_response1.GetResponseStream());
        CookieCollection _cookieCollection = new CookieCollection();
        foreach (Cookie _cook in _response1.Cookies)
        {
            _cookieCollection.Add(_cook);
        }
        wbrowser_html.DocumentText = _reader1.ReadToEnd();

        _response1.Close();
        _reader1.Close();

        //########################

        HttpWebRequest _request2 = (HttpWebRequest)WebRequest.Create("http://uploaded.to/login?coo=1");
        _request2.Method = "GET";
        _request2.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";
        _request2.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.9.2) Gecko/20100115 Firefox/3.6 (.NET CLR 3.5.30729)";
        _request2.Referer = "http://uploaded.to/login";
        _request2.KeepAlive = true;

        //Here I set the language and the auth cookie, works fine
        _request2.CookieContainer = _cookieContainer;
        _request2.CookieContainer.Add(_cookieCollection);
        _request2.Headers.Add(HttpRequestHeader.CacheControl, "no-cache=set-cookie");

        HttpWebResponse _response2 = (HttpWebResponse)_request2.GetResponse();
        StreamReader _reader2 = new StreamReader(_response2.GetResponseStream());
        wbrowser_html.DocumentText = _reader2.ReadToEnd();

        _response2.Close();
        _reader2.Close();

现在，如果我检查 Wireshark 并查看第二个请求中没有 cookie。我已将它们添加到请求中，但无论如何它们都没有发送到服务器？

有没有人有解决这个问题的想法？

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1 回答 1

0

为什么不使用 WebClient 类？

NameValueCollection loginData = new NameValueCollection();
loginData.Add("email", "your_email");
loginData.Add("password", "your_password");

WebClient client = new WebClient();
string source = Encoding.UTF8.GetString(client.UploadValues("http://uploaded.to/login", loginData));
string cookie = client.ResponseHeaders["Set-Cookie"];
client.Headers["Cookie"] = cookie;

source = client.DownloadString("http://uploaded.to/some-page");
于 2010-03-19T09:27:06.463 回答