private async Task <bool> AuthenticateRequest(AuthenticationSchemes scheme, TcpListenerWebSocketContext context)
{
var chal = scheme == AuthenticationSchemes.Basic
? AuthenticationChallenge.CreateBasicChallenge(Realm).ToBasicString()
: scheme == AuthenticationSchemes.Digest
? AuthenticationChallenge.CreateDigestChallenge(Realm).ToDigestString()
: null;
if (chal == null)
{
await context.Close(HttpStatusCode.Forbidden).ConfigureAwait(false);
return(false);
}
var retry = -1;
var schm = scheme.ToString();
var realm = Realm;
var credFinder = UserCredentialsFinder;
Func <Task <bool> > auth = () => Task.FromResult(false);
auth = async() =>
{
var auth1 = auth;
retry++;
if (retry > 99)
{
await context.Close(HttpStatusCode.Forbidden).ConfigureAwait(false);
return(false);
}
var res = await context.GetHeader("Authorization").ConfigureAwait(false);
if (res == null || !res.StartsWith(schm, StringComparison.OrdinalIgnoreCase))
{
context.SendAuthenticationChallenge(chal);
return(await auth1().ConfigureAwait(false));
}
await context.SetUser(scheme, realm, credFinder).ConfigureAwait(false);
if (!context.IsAuthenticated)
{
context.SendAuthenticationChallenge(chal);
return(await auth1().ConfigureAwait(false));
}
return(true);
};
return(await auth().ConfigureAwait(false));
}
