internal void Complete(HttpListenerContext context, bool synch) { if (_forward != null) { _forward.Complete(context, synch); return; } _synch = synch; _context = context; lock (_locker) { bool authFailure = false; try { context.AuthenticationSchemes = context._listener.SelectAuthenticationScheme(context); } catch (OutOfMemoryException oom) { context.AuthenticationSchemes = AuthenticationSchemes.Anonymous; _exception = oom; } catch { authFailure = true; context.Response.StatusCode = (int)HttpStatusCode.InternalServerError; } if (context.AuthenticationSchemes != AuthenticationSchemes.None && (context.AuthenticationSchemes & AuthenticationSchemes.Anonymous) != AuthenticationSchemes.Anonymous && (context.AuthenticationSchemes & AuthenticationSchemes.Basic) != AuthenticationSchemes.Basic) { authFailure = true; context.Response.StatusCode = (int)HttpStatusCode.Unauthorized; } else if (context.AuthenticationSchemes == AuthenticationSchemes.Basic) { HttpStatusCode errorCode = HttpStatusCode.Unauthorized; string authHeader = context.Request.Headers["Authorization"]; if (authHeader == null || !HttpListenerContext.IsBasicHeader(authHeader) || authHeader.Length < AuthenticationTypes.Basic.Length + 2 || !HttpListenerContext.TryParseBasicAuth(authHeader.Substring(AuthenticationTypes.Basic.Length + 1), out errorCode, out string _, out string __)) { authFailure = true; context.Response.StatusCode = (int)errorCode; if (errorCode == HttpStatusCode.Unauthorized) { context.Response.Headers["WWW-Authenticate"] = context.AuthenticationSchemes + " realm=\"" + context._listener.Realm + "\""; } } } if (authFailure) { context.Response.OutputStream.Close(); IAsyncResult ares = context._listener.BeginGetContext(_cb, _state); _forward = (ListenerAsyncResult)ares; lock (_forward._locker) { if (_handle != null) { _forward._handle = _handle; } } ListenerAsyncResult next = _forward; for (int i = 0; next._forward != null; i++) { if (i > 20) { Complete(new HttpListenerException((int)HttpStatusCode.Unauthorized, SR.net_listener_auth_errors)); } next = next._forward; } } else { _completed = true; _synch = false; if (_handle != null) { _handle.Set(); } if (_cb != null) { ThreadPool.UnsafeQueueUserWorkItem(s_invokeCB, this); } } } }