POST to HTTPS authentication error

Question

This is a simple post to a https site using C# console app, I used the same thing with webservice too. When I run this it froze. Downloaded the fiddler and in the Auth tab I see No Proxy-Authenticate Header is present. No WWW-Authenticate Header is present.

Earlier I used Stream instead of MemoryStream. I've commented out some of the things I used before but didn't work like preauthenticate.

I can login to the site to get a subscriber thru IE, using the same user and passsword. Can some one please tell me what's wrong?.

using System;
using System.IO;
using System.Net;
using System.Text;
using System.Web;

namespace Examples.System.Net
{
    public class WebRequestPostExample
    {
        public static void Main()
        {
            Uri requestUri = new Uri("https://services.yesmail.com/enterprise/subscribers");            

            // Set the Method property of the request to POST.   
            CredentialCache cache = new CredentialCache();
            NetworkCredential nc = new NetworkCredential("user/user1", "password");                 
            cache.Add(requestUri, "Basic", nc);
            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(requestUri);

            //request.PreAuthenticate = true;
            //request.KeepAlive = false;

            request.Method = WebRequestMethods.Http.Post;
            request.ContentType = "application/xml;charset=ISO-8859-1";

            //request.ContentType = "application/xml-www-form-urlencoded";       
            //request.Timeout = 300000;


            string EmailAddress = "[email protected]";
            string FirstName = "first";
            string LastName = "Last";

            StringBuilder Efulfill = new StringBuilder();


            Efulfill.Append("EmailAddress" + HttpUtility.UrlEncode(EmailAddress));
            Efulfill.Append("FirstName" + HttpUtility.UrlEncode(FirstName));
            Efulfill.Append("LastName" + HttpUtility.UrlEncode(LastName));


            byte[] byteData = Encoding.UTF8.GetBytes(Efulfill.ToString());

            request.ContentType = "application/xml;charset=ISO-8859-1";

            request.ContentLength = byteData.Length;



            using (MemoryStream Stream = new MemoryStream(byteData))
            {
                // Write the stream.
                Stream.Write(byteData, 0, byteData.Length);
                Stream.Close();
            }
            //Get response   

            using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
            {
                using (Stream resStream = response.GetResponseStream())
                {
                    StreamReader reader = new StreamReader(resStream, Encoding.Default);
                    Console.WriteLine(reader.ReadToEnd());
                }
            }


        }
    }
}

Answer 1

You are taking the data in byteData and writing it over itself via a MemoryStream? You need to use HttpWebRequest.GetRequestStream to get the stream, write your post data, and make sure it is closed.