Connecting to web service in C#

Question

I am trying to connect to a web service from Lockheed Martin located here. I have looked at other examples and am using the following code to try and establish a connection. All I want to know at this point is if I have established a connection and been authorized but I repeatedly get an exception saying

Unauthorized at System.Net.HttpWebRequest.GetResponse()

. Am I setting up the web request and response correctly? Is there a different method that would simply let me know if I've successfully connected?

            try
        {
            //Connect to the Lockheed Martin web client

            WebRequest client = WebRequest.Create("https://www.elabs.testafss.net/Website2/ws");
            string username = "username";
            string password = "password";
            string credentials = Convert.ToBase64String(ASCIIEncoding.ASCII.GetBytes(username + ":" + password));
            client.Headers.Add("Authorization", "Basic " + credentials);
            WebResponse response = client.GetResponse();
            Console.WriteLine(((HttpWebResponse)response).StatusDescription);
        }
        catch (Exception ex)
        {
            Console.WriteLine(ex);
        }

Are you sure you should be converting your user/pass to base64 based on ASCII encoding? You might try Encoding.Unicode.GetBytes() — Jerreck, Aug 12 '15 at 14:07
Take a look at http://stackoverflow.com/a/13956730/1479335. Maybe encoding matters. — FireAlkazar, Aug 12 '15 at 14:13

score 0 · Answer 1 · edited Jun 20 '20 at 09:12

Probably your user / password is incorrect, looking at the documentation of the web service, your code is reproducing the exactly same hash that is in following sample:

Authentication - Basic Auth

Authentication is performed using the Basic Auth protocol. An authorization header is supplied with every web service request. This is sometimes called pre-emptive authentication. The header looks like this:
Authorization: Basic Vendor_ID:Vendor_Password
where the Vendor_ID:Vendor_Password string is converted to Base64.

Example

Authorization: Basic JoesFlightServices:SecretPW
Converted to Base64:
Authorization: Basic Sm9lc0ZsaWdodFNlcnZpY2VzOlNlY3JldFBX
Note that conversion to Base64 does not ensure the information will be private. We use HTTPS to encrypt the entire HTTP message including the headers.

Source

Connecting to web service in C#

1 Answers1

Authentication - Basic Auth

Example