发送POST变量后获取页面源 [英] Getting a page source after POST variables have been sent
问题描述
我有一些代码可以将我登录到Facebook，并且在您登录后立即返回我所看到的页面的情况下，它仍然可以正常工作. 但是，我尝试登录后要求提供我的实际个人资料，而不仅仅是我的新闻提要. 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. 请求个人资料时如何保留登录数据?
I have some code that logs me into Facebook and it works fine as far as returning me the page you see right after you log in. But I'm trying to request my actual profile after I log in rather than just my news feed. So I'd have to send my email and password to the login page, then request my profile. How can I keep the login data around while requesting my profile?
这就是我所拥有的
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获得它返回我的个人资料，但是它会返回它，就像我没有登录一样，并且您实际上无法查看我的个人资料(因为它被设置为私人) 因此，在请求个人资料时，我需要以某种方式包含我的登录信息.
I've tried several ways of doing this and I have gotten it to return my profile, but it returns it as if I was not logged in and you can't actually view my profile (because it is set to private) So I need my login info to be included somehow when requesting my profile.
推荐答案
您必须在开始时启动CookieCollection，并将其用于所有请求. 每当您提出请求时，CookieCollection都会使用新的cookie更新自身，因此使用cookies.Add()也将其弄乱了. 但是我现在可以正常工作了.
You have to start a CookieCollection at the beginning and use it for all requests. A CookieCollection updates itself with new cookies whenever you do a request so using cookies.Add() was also messing it up. But I got it working fine now.
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