Auto Login to External Website using asp.net C#

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Hi.

I have the username, password and url of the website. I want to login into the website automatically. I googled it but could not get the solution. Also used POST, WebRequest but couldn't log in. Could anyone please help and send me the code?

Posted 9-Oct-12 22:12pm

chintanvp

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Sandip.Nascar 10-Oct-12 4:32am

If the site uses HTTP POST to validate login, then only you can externally use the post method to login to the site.

chintanvp 11-Oct-12 2:48am

string appURL = "http://blahblah.com";
string strPostData = String.Format("userName={0}&password={1}",
"username", "password");
// Setup the http request.
HttpWebRequest wrWebRequest = WebRequest.Create(appURL) as
HttpWebRequest;
wrWebRequest.Method = "post";
wrWebRequest.ContentLength = strPostData.Length;
wrWebRequest.ContentType = "application/x-www-form-urlencoded";
CookieContainer cookieContainer = new CookieContainer();
wrWebRequest.CookieContainer = cookieContainer;
// Post to the login form.
StreamWriter swRequestWriter = new
StreamWriter(wrWebRequest.GetRequestStream());
swRequestWriter.Write(strPostData);
swRequestWriter.Close();
// Get the response.
HttpWebResponse hwrWebResponse = (HttpWebResponse)wrWebRequest.GetResponse();
// Read the response
StreamReader srResponseReader = new
StreamReader(hwrWebResponse.GetResponseStream());
string strResponseData = srResponseReader.ReadToEnd();
srResponseReader.Close();

Response.Write(strResponseData);
return cookieContainer;

This is the Code that i am using for auto login.. please let me know if i am wrong anywhere

chintanvp 6-Nov-13 23:00pm

Hi Sandip Nascar, Thank you for the reply. But when i try the code, it doesn't login nor the link gets open. Can you please help. Thanks.

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arul watson · Answer 1 · 2013-10-29T20:21:00

Hi Sandip , I am a new bie in ASP .net i just read through the code and tried to automate my webmail login via same, while i am getting 401 .

Could you please suggest me , where do i need to work on , also any help on other web methods , like i used to work with (web browser control in forms for login automation) would be much helpful.

Thank you

C#

<pre>

Uri uri1=new Uri("https://webmail.abc.com");

string strPostData = String.Format("username={0}&password={1}", "username", "passw123");
HttpWebRequest webreq1=WebRequest.Create(uri1) as HttpWebRequest;
webreq1.Method = "post";
webreq1.ContentLength = strPostData.Length;
webreq1.ContentType = "application/x-www-form-urlencoded";

CookieContainer cookieContainer = new CookieContainer();
webreq1.CookieContainer = cookieContainer;

StreamWriter web1_p = new StreamWriter(webreq1.GetRequestStream());
web1_p.Write(strPostData);
web1_p.Close();

HttpWebResponse Hr_resp = (HttpWebResponse)webreq1.GetResponse();
StreamReader sr_reader = new StreamReader(Hr_resp.GetResponseStream());
string weba = sr_reader.ReadToEnd();
TextBox1.Text = Andz.ToString();
sr_reader.Close();