Here is how my authentication code looks:
public class BasicAuthenticationMessageHandler : DelegatingHandler
{
private const string BasicAuthResponseHeader = "WWW-Authenticate";
private const string BasicAuthResponseHeaderValue = "Basic";
public IProvidePrincipal PrincipalProvider { get; set; }
protected override System.Threading.Tasks.Task<HttpResponseMessage> SendAsync(
HttpRequestMessage request,
CancellationToken cancellationToken)
{
AuthenticationHeaderValue authValue = request.Headers.Authorization;
if (authValue != null && !String.IsNullOrWhiteSpace(authValue.Parameter))
{
Credentials parsedCredentials = ParseAuthorizationHeader(authValue.Parameter);
if (parsedCredentials != null)
{
Thread.CurrentPrincipal = PrincipalProvider
.CreatePrincipal(parsedCredentials.Username, parsedCredentials.Password);
}
}
return base.SendAsync(request, cancellationToken)
.ContinueWith(task =>
{
var response = task.Result;
if (response.StatusCode == HttpStatusCode.Unauthorized
&& !response.Headers.Contains(BasicAuthResponseHeader))
{
response.Headers.Add(BasicAuthResponseHeader
, BasicAuthResponseHeaderValue);
}
return response;
});
}
private Credentials ParseAuthorizationHeader(string authHeader)
{
string[] credentials = Encoding.ASCII.GetString(Convert
.FromBase64String(authHeader))
.Split(
new[] { ':' });
if (credentials.Length != 2 || string.IsNullOrEmpty(credentials[0])
|| string.IsNullOrEmpty(credentials[1])) return null;
return new Credentials()
{
Username = credentials[0],
Password = credentials[1],
};
}
}
I have a setup using Web API as the backend and AngularJS for the frontend. Interestingly, when attempting to access authenticated actions, Firefox behaves as expected while IE and Chrome do not. Could this discrepancy be related to MediaTypeFormatter? Or is there another reason behind this behavior?