protected override async Task <AuthenticateResult> HandleAuthenticateAsync() { string usernameParameter = Request.Query["username"]; if (!string.IsNullOrEmpty(usernameParameter)) { var validateCredentialsContext = new ValidateCredentialsContext(Context, Scheme, Options) { Username = usernameParameter }; await Options.Events.ValidateUsername(validateCredentialsContext); if (validateCredentialsContext.Result != null) { var ticket = new AuthenticationTicket(validateCredentialsContext.Principal, Scheme.Name); return(AuthenticateResult.Success(ticket)); } } return(AuthenticateResult.NoResult()); }
public virtual Task ValidateUsername(ValidateCredentialsContext context) => OnValidateUsername(context);