Question

我有一些代码可以将我登录到Facebook，只要将您登录后立即返回的页面返回给我，它就能正常工作。但是我在登录后尝试请求我的实际个人资料而不仅仅是我的新闻Feed。因此，我必须将我的电子邮件和密码发送到登录页面，然后请求我的个人资料。如何在请求我的个人资料时保留登录数据？

这是我所拥有的

    public static string logIn()
    {
        //get the cookies before you try to log in
        CookieCollection cookies = new CookieCollection();
        HttpWebRequest request = (HttpWebRequest)WebRequest.Create("https://www.facebook.com"); 
        request.CookieContainer = new CookieContainer();
        request.CookieContainer.Add(cookies);
        HttpWebResponse response = (HttpWebResponse)request.GetResponse();
        cookies = response.Cookies;
        response.Close();

        //logging in
        HttpWebRequest getRequest = (HttpWebRequest)WebRequest.Create("https://www.facebook.com/login.php?login_attempt=1");
        getRequest.CookieContainer = new CookieContainer();
        getRequest.CookieContainer.Add(cookies);
        getRequest.Method = WebRequestMethods.Http.Post;
        getRequest.UserAgent = "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.121 Safari/535.2";
        getRequest.AllowWriteStreamBuffering = true;
        getRequest.ProtocolVersion = HttpVersion.Version11;
        getRequest.AllowAutoRedirect = true;
        getRequest.ContentType = "application/x-www-form-urlencoded";

        //sending the email/password
        byte[] byteArray = Encoding.ASCII.GetBytes("email=myemail@yahoo.com&pass=mypassword");
        getRequest.ContentLength = byteArray.Length;
        Stream newStream = getRequest.GetRequestStream();
        newStream.Write(byteArray, 0, byteArray.Length); 
        newStream.Close();

        //returns the source of the page after logging in
        HttpWebResponse getResponse = (HttpWebResponse)getRequest.GetResponse();
        StreamReader sr = new StreamReader(getResponse.GetResponseStream());
        string source = sr.ReadToEnd();
        cookies.Add(getResponse.Cookies);

        //tries to get my profile source
        //everything works fine until here
        getRequest = (HttpWebRequest)WebRequest.Create("http://www.facebook.com/myprofile");
        getRequest.CookieContainer = new CookieContainer();
        getRequest.CookieContainer.Add(cookies);
        getRequest.Method = WebRequestMethods.Http.Get;
        getRequest.UserAgent = "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.121 Safari/535.2";
        getRequest.AllowWriteStreamBuffering = true;
        getRequest.ProtocolVersion = HttpVersion.Version11;
        getRequest.AllowAutoRedirect = true;
        getRequest.ContentType = "application/x-www-form-urlencoded";

        getResponse = (HttpWebResponse)getRequest.GetResponse();
        sr = new StreamReader(getResponse.GetResponseStream());
        source = sr.ReadToEnd();
        getResponse.Close();
        return source;
    }

我已经尝试了几种方法来做这个，我已经让它返回我的个人资料，但它返回它，好像我没有登录，你实际上无法查看我的个人资料（因为它是设为私人）因此，在申请我的个人资料时，我需要以某种方式包含我的登录信息。

Answer 1

当我制作类似的东西时，这让我感到难过。您需要确保在登录后为您的请求设置了正确的Cookie。尝试将新Cookie添加到CookieCollection对象，然后再将其应用到您的上一个请求中。

// ^ previous code ^
HttpWebResponse getResponse = (HttpWebResponse)getRequest.GetResponse();
StreamReader sr = new StreamReader(getResponse.GetResponseStream());
string source = sr.ReadToEnd();

Uri facebookPage = new Uri("http://www.facebook.com"); // .GetCookies() only accepts a Uri
cookies.Add(request.CookieContainer.GetCookies(facebookPage));

getResponse.Close(); // Always make sure you close your responses

// V requesting your profile code V

Answer 2

您必须在开始时启动CookieCollection并将其用于所有请求。每当您执行请求时，CookieCollection都会使用新Cookie更新自己，因此使用cookies.Add（）也会搞砸它。但我现在工作得很好。

在POST变量发送后获取页面源

2 个答案: