使用HTTP POST请求用C＃我如何可以登录到LinkedIn [英] How can i login to linkedin using HTTP POST Request with C#
问题描述
我工作的一个简单的Windows窗体程序，需要用户名和密码，从一个文本框，那么它显示我的链接的名称在消息框。
我要完成的code与利用的HttpWebRequest，或使用任何方法来发送我的POST请求链接，在那我可以得到响应，找到我的名字，以示其在消息框
我熟悉创建一个GET请求，也是我做了一些POST请求，但在这种情况下，我不知道我怎么能送我的txt_UserName.Text和txt_Password使用POST请求和我怎样才能收到响应。
我试着使用招捕获POST请求（= POST）从LinkedIn当我尝试登录，但它抓住了4个以上的请求，当我看到他们的它看起来像一个GET请求的头，这是一个例子：
GET / nhome /？TRK = HTTP / 1.1
接受：text / html的，是application / xhtml + xml的，应用程序/ XML; Q = 0.9，* / *; Q = 0.8
和所有的人都有多个cookie的值。
这是我的POST请求code：
公共无效SubmitData（）
{
尝试
{
字符串POSTDATA =这是一个测试，帖子这个字符串到Web服务器。
字节[]的字节数组= Encoding.UTF8.GetBytes（POSTDATA）;
//创建使用，它可以接收后的URL的请求。
WebRequest的请求= WebRequest.Create（http://www.linkedin.com）;
//请求POST的方法属性设置。
request.Method =POST;
//设置的WebRequest的CONTENTLENGTH财产。
request.ContentLength = byteArray.Length;
//内容长度
request.ContentLength = byteArray.Length;
//获取请求流。
流式传输的数据流= request.GetRequestStream（）;
//将数据写入请求流。
dataStream.Write（字节数组，0，byteArray.Length）;
//关闭Stream对象。
dataStream.Close（）;
//得到响应。
WebResponse的响应= request.GetResponse（）;
数据流= response.GetResponseStream（）;
StreamReader的SR =新的StreamReader（数据流）;
的MessageBox.show（sr.ReadToEnd（））;
sr.Close（）;
dataStream.Close（）;
}
赶上（例外前）
{
的MessageBox.show（错误：+ ex.Message）;
}
}
现在我唯一想知道，我怎么能送我的用户名和密码作为一个值来登录链接吗？
编辑：
下面是我的第二次尝试，它的确定，我现在可以把用户和密码POSTDATA，我可以存储Cookie和retrive它。但有两个问题： 1 - 我怎样才能确保登录完成，而不是失败 2 - 如果登录完成我想知道什么是第二步，从配置文件让我的名字，是不是做了另一个请求，或者是什么？
私人无效的button1_Click（对象发件人，EventArgs的）
{
PostMessage的（）;
}
私人无效PostMessage的（）
{
尝试 {
// POST数据和POST URI
字符串POSTDATA =isJsEnabled =真放; source_app =安培; session_key可以=+ textBox1.Text +＆放大器; session_password =+ textBox2.Text +＆放大器;的登入=符号+在与放大器; session_redirect =;
字符串URI =https://www.linkedin.com/uas/login-submit;
//编码POST数据
字节[]的字节数组= Encoding.UTF8.GetBytes（POSTDATA）;
//创建POST请求
HttpWebRequest的WebReq =（HttpWebRequest的）WebRequest.Create（URI）;
// POST参数（方法等）
WebReq.Method =POST;
WebReq.ContentType =应用/的X WWW的形式urlen codeD;
WebReq.ContentLength = byteArray.Length;
//设置POST请求饼干
VAR的CookieContainer =新的CookieContainer（）;
WebReq.CookieContainer =的CookieContainer;
//获取请求流。
流式传输的数据流= WebReq.GetRequestStream（）;
//将数据写入请求流。
dataStream.Write（字节数组，0，byteArray.Length）;
//关闭Stream对象。
dataStream.Close（）;
//得到响应。
HttpWebResponse响应=（HttpWebResponse）WebReq.GetResponse（）;
数据流= response.GetResponseStream（）;
StreamReader的SR =新的StreamReader（数据流）;
//MessageBox.Show（sr.ReadToEnd（））;
sr.Close（）;
dataStream.Close（）;
如果（response.Status code！=的HTTPStatus code.OK）
{
的MessageBox.show（错误：+ response.StatusDescription）;
response.Close（）;
}
的foreach（Cookie的厨师response.Cookies）
{
的MessageBox.show（cook.Name ++ cook.Value）;
}
}
赶上（例外前）
{
的MessageBox.show（POST消息错误：+ ex.Message）;
}
}
这个问题你反对的是，LinkedIn使用登录会话中重定向并differcult赶上。 所以，在某种程度上，你需要code中的登录会话，它重定向到 HTTPS中：// WWW .linkedin.com / nhome /？TRK = 这为用户提供了页面的访问。
我也有这个测试，但是没能弄清楚这部分出来，通常 httpWebRequest.AllowAutoRedirect = TRUE; 应该做的伎俩，但不是在这种情况下，这是行不通的。
所以，如果你找到解决方案让我知道，如果我发现将它张贴也。
I am working on a simple Windows Forms program that take a username and password from a "Textbox" then it show my linked-in name in a "Messagebox".
I want to accomplish the code with the using of "HttpWebRequest" or using any method to send my POST request to Linked-in then i can get the response and find my name to shown it in a "Messagebox".
I am familiar with creating a "GET" Request and also i made some "POST" Requests but in this case i didn't know how can i send my "txt_UserName.Text" and "txt_Password" with the POST Request and how can i receives the Response.
I tried to using Fiddler to capture POST request (=POST) from linkedin when i try to login but it captures more than 4 requests when i see the header of them it seem like a GET Request this is an example of one:
GET /nhome/?trk= HTTP/1.1
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
and all of them have a multiple cookies values.
This is my POST request code:
public void SubmitData()
{
try
{
string postData = "This is a test that posts this string to a Web server.";
byte[] byteArray = Encoding.UTF8.GetBytes(postData);
// Create a request using a URL that can receive a post.
WebRequest request = WebRequest.Create("http://www.linkedin.com");
// Set the Method property of the request to POST.
request.Method = "POST";
// Set the ContentLength property of the WebRequest.
request.ContentLength = byteArray.Length;
//Content Length
request.ContentLength = byteArray.Length;
// Get the request stream.
Stream dataStream = request.GetRequestStream();
// Write the data to the request stream.
dataStream.Write(byteArray, 0, byteArray.Length);
// Close the Stream object.
dataStream.Close();
// Get the response.
WebResponse response = request.GetResponse();
dataStream = response.GetResponseStream();
StreamReader sr = new StreamReader(dataStream);
MessageBox.Show(sr.ReadToEnd());
sr.Close();
dataStream.Close();
}
catch (Exception ex)
{
MessageBox.Show("Error: " + ex.Message);
}
}
Now the only thing i wish to know, how can i send my username and password as a values to login to linked-in?
Edit:
Below is my second try, it's ok, i can now send the User and Password in postData and i can store the Cookies and retrive it. but there are two issues: 1- how can i make sure that the login is accomplished and not failed 2- if the login is accomplished i want to know what is the second step to get my name from profile, is it made another request or what ?
private void button1_Click(object sender, EventArgs e)
{
PostMessage();
}
private void PostMessage()
{
try {
// POST Data and the POST uri
string postData = "isJsEnabled=true&source_app=&session_key=" + textBox1.Text + "&session_password=" + textBox2.Text + "&signin=Sign+In&session_redirect=";
string uri = "https://www.linkedin.com/uas/login-submit";
// Encoding the POST Data
byte[] byteArray = Encoding.UTF8.GetBytes(postData);
// Create the POST Request
HttpWebRequest WebReq = (HttpWebRequest)WebRequest.Create(uri);
//POST Parameters (Method and etc.)
WebReq.Method = "POST";
WebReq.ContentType = "application/x-www-form-urlencoded";
WebReq.ContentLength = byteArray.Length;
// Set the POST Request Cookies
var cookieContainer = new CookieContainer();
WebReq.CookieContainer = cookieContainer;
// Get the request stream.
Stream dataStream = WebReq.GetRequestStream();
// Write the data to the request stream.
dataStream.Write(byteArray, 0, byteArray.Length);
// Close the Stream object.
dataStream.Close();
// Get the response.
HttpWebResponse response = (HttpWebResponse)WebReq.GetResponse();
dataStream = response.GetResponseStream();
StreamReader sr = new StreamReader(dataStream);
//MessageBox.Show(sr.ReadToEnd());
sr.Close();
dataStream.Close();
if (response.StatusCode != HttpStatusCode.OK)
{
MessageBox.Show(" Error: " + response.StatusDescription);
response.Close();
}
foreach (Cookie cook in response.Cookies)
{
MessageBox.Show(cook.Name + " " + cook.Value);
}
}
catch (Exception ex)
{
MessageBox.Show("POST Message Error: " + ex.Message);
}
}
The problem you up against is that Linkedin uses a redirect within the login session and is differcult to catch. So somehow within the login session you need to code that it redirects to the https://www.linkedin.com/nhome/?trk= this provides the user page access.
I am also testing with this, however did not manage to figure this part out, normally httpWebRequest.AllowAutoRedirect = true; should do the trick but not in this case it does not work.
So if you find the solution let me know, if I find will post it also.
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