ASP.NET HTTP Authorization Header

I would like to know why my asp.net application will not add the header to my post when it is named 'Authorization' but will work fine when I change one character, say "Authorizations". In documentation for other sites they always use the name "Authorization" so I would like to as well and at this point I just want to under stand why.

I have read a few topics about this but have not found any logical reason w开发者_运维知识库hy.

Here is my code below:

string fileName = "c:\\xyz.xml";
string uri = "http://myserver/Default.aspx";
req = WebRequest.Create(uri);
req.Method = "POST";
req.ContentType = "text/xml";
byte[] authBytes = Encoding.UTF8.GetBytes("DDSServices:jCole2011".ToCharArray());
req.Headers.Add("Authorization", "BASIC " + Convert.ToBase64String(authBytes) );
req.Headers.Add("test", "test");
UTF8Encoding encoder = new UTF8Encoding();
byte[] data = encoder.GetBytes(this.GetTextFromXMLFile(fileName));
req.ContentLength = data.Length;
Stream reqStream = req.GetRequestStream();
reqStream.Write(data, 0, data.Length);
reqStream.Close();
req.Headers.Add("Authorization", "BASIC" + Convert.ToBase64String(authBytes));
System.Net.WebResponse response = req.GetResponse();
System.IO.StreamReader reader = new StreamReader(response.GetResponseStream());
string str = reader.ReadToEnd();

The other annoying this is when i add the watched variable through fiddler it works fine.

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I was ran into a question how to add Authentication/Credentials to the headers. I found the solution in the following way.

string _auth = string.Format("{0}:{1}", "myUser","myPwd");
string _enc = Convert.ToBase64String(Encoding.ASCII.GetBytes(_auth));
string _cred = string.Format("{0} {1}", "Basic", _enc);
req.Headers[HttpRequestHeader.Authorization] = _cred;

Which gave me those headers I want (pasted Wireshark descriptions),

Authorization: Basic bXlVc2VyOm15UHdk\r\n
Credentials: myUser:myPwd

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For HTTP Basic Authorization, you should be using the Credentials property.

req.Credentials = new NetworkCredential("DDSServices", "jCole2011");

This should do what you want. Rather than setting the Authorization header.

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NetworkCredential is a good solution but the site you are calling has to handle an unauthorized with a 401 AND a WWW-Authenticate header in the response.

Client:

request.Credentials = new CredentialCache {{aUri, "Basic", new NetworkCredential(aUserName, aPassword)}};

Server:

Response.ClearContent();
Response.StatusCode = 401;
Response.AddHeader("WWW-Authenticate", "Basic");
Response.End();

This will result in 2 hits to the server. The initial call will go to the server without credentials. When the server responds with a 401 AND the WWW-Authenticate header (with the type of authentication required), the request will be resent with the credentials in the request.