C# WebRequest using Cookies
26,228
Something like this should work, I am using similar code to save a login cookie:
HttpWebRequest runTest;
//...do login request
//get cookies from response
CookieContainer myContainer = new CookieContainer();
for (int i = 0; i < Response.Cookies.Count; i++)
{
HttpCookie http_cookie = Request.Cookies[i];
Cookie cookie = new Cookie(http_cookie.Name, http_cookie.Value, http_cookie.Path);
myContainer.Add(new Uri(Request.Url.ToString()), cookie);
}
//later:
HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://www.url.com/foobar");
request.CookieContainer = myContainer;
Author by
Alex
Updated on July 09, 2022Comments
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Alex almost 2 years
I have a winforms application i have been working on that runs multiple tests on consumer accounts. The tests require a one time login in order to execute.
string paramaters = "authmethod=on&chkRememberMe=on&login-form-type=pwd&password=" + pw.Text + "&userid=" + uid.Text + "&username=" + uid.Text; string strResponse; HttpWebRequest requestLogin = (HttpWebRequest)WebRequest.Create("https://www.url.com/login.form"); requestLogin.Method = "POST"; requestLogin.CookieContainer = cookieJar; requestLogin.ContentType = "application/x-www-form-urlencoded"; requestLogin.ContentLength = paramaters.Length; StreamWriter stOut = new StreamWriter(requestLogin.GetRequestStream(), System.Text.Encoding.ASCII); stOut.Write(paramaters); stOut.Close(); StreamReader stIn = new StreamReader(requestLogin.GetResponse().GetResponseStream()); strResponse = stIn.ReadToEnd(); stIn.Close();
This script works for the login just fine, the problem is when i need to actually run the tests i need to return all the results into a string (HTML results).
private string runTestRequest(Uri url, string parameters) { string testResults = string.Empty; HttpWebRequest runTest = (HttpWebRequest)WebRequest.Create(url); runTest.CookieContainer = cookieJar; runTest.Method = "POST"; runTest.ContentType = "application/x-www-form-urlencoded"; StreamWriter stOut = new StreamWriter(runTest.GetRequestStream(), System.Text.Encoding.ASCII); stOut.Write(parameters); stOut.Close(); StreamReader stIn = new StreamReader(runTest.GetResponse().GetResponseStream()); testResults = stIn.ReadToEnd(); stIn.Close(); return testResults; }
But it goes and tries to login. How can i use the Cookie from the previous login request with this + many other web requests?
Thanks for the help.
EDIT:
I added this to my code yet which should do the same thing as BrokenGlass is saying except just a little different but still doesn't work.
foreach (Cookie cookie in responseLogin.Cookies) { cookieJar.Add(new Cookie(cookie.Name.Trim(), cookie.Value.Trim(), cookie.Path, cookie.Domain)); richTextBox2.Text += cookie.Name.ToString() + Environment.NewLine + cookie.Value.ToString() + Environment.NewLine + cookie.Path.ToString() + Environment.NewLine + cookie.Domain.ToString(); }
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Alex over 13 yearsI don't think I understand how do implement your idea. The runTest request will be done after the initial login, and i dont know the names of the cookies. Can you please go into more detail?
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BrokenGlass over 13 years@Alex: I revised my answer for http cookies - my initial response I adapted from use of SOAP service where you can make the login request and then get the cookies from the same variable
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Alex over 13 yearsI'm not sure where exactly i would fit your code in with mine. I don't have a "Response" variable and my application doesn't understand what HttpCookie is. Thanks for the help again.
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BrokenGlass over 13 yearsAlex: check your code: requestLogin.GetResponse() is the Response object you are looking for. For HttpCookie you have to add a reference to System.Web in your app.
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Alex over 13 yearsBroken Glass, Check the OP I updated some code and basically did the what i think is basically the same thing and it still didnt work.
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Arsha about 7 yearsWhere is
Request
from? (inRequest.Cookies[i]
)