Question

语言：C＃
开发环境：Visual Studio 2008

我想登录网站并从那里获取一些数据。我的问题是Cookies不起作用。每当网站说我应该激活Cookies但我通过Cookiecontainer激活Cookies时。

为了登录进度，我多次嗅到了流量，我发现没有问题。我尝试了不同的方法登录，我搜索了其他人是否有这个问题，但没有结果......

登录页面是：“www.uploaded.to”，这是我的简短登录代码：

        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();

        }

我已经坚持这个问题了很多个星期，我发现没有解决方案可行，请帮助...

我再次尝试过，第一次请求工作（登录）。我得到一个带有Authentification的cookie。响应文本是url：http://uploaded.to/login?coo=1现在我必须在此URL上发出GET请求但问题是，它在此请求中不发送cookie，使用Wireshark进行检查。 httpwebrequest有问题吗？

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();

现在如果我查看Wireshark并看到第二个请求中没有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？

有人有想法解决这个问题吗？

Answer 1

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");

登录网站，好奇的Cookie问题

1 个答案: