content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package org.apache.cassandra.transport;
  
  
  import org.junit.BeforeClass;
  import org.junit.Test;
  
  import org.apache.cassandra.auth.AuthTestUtils;
  import org.apache.cassandra.auth.IAuthenticator;
  import org.apache.cassandra.transport.messages.AuthenticateMessage;
  
  import static org.junit.Assert.fail;
  
  /**
   * A variant of {@link EarlyAuthenticationTest} that configures
   * {@link org.apache.cassandra.auth.MutualTlsWithPasswordFallbackAuthenticator}
   * as the configured authenticator.
   * <p>
   * This authenticator has an interesting property such that its underlying
   * {@link IAuthenticator.SaslNegotiator#shouldSendAuthenticateMessage()} will only return false if a client
   * certificate is present, otherwise it will return true, which should cause Cassandra to return an AUTHENTICATE
   * message in response to a STARTUP request sent by a client which will provoke the normal authentication flow.
   */
  public class MutualTlsWithPasswordFallbackAuthenticatorEarlyAuthenticationTest extends EarlyAuthenticationTest
  {
  
      @BeforeClass
      public static void setup()
      {
          setupWithAuthenticator(new AuthTestUtils.LocalMutualTlsWithPasswordFallbackAuthenticator(authenticatorParams));
      }
  
      @Test
      @Override
      public void testNoClientCertificatePresented()
      {
          /*
           * given server is configured with a Fallback password authenticator in that it supports early certificate
           * authentication, but the sasl negotiator is determined based on the presence of client certificates
           *
           * When connecting without a client certificate, we expect the server to prompt us to authenticate.
           */
          testStartupResponse(false, startupResponse -> {
              if (!(startupResponse instanceof AuthenticateMessage))
              {
                  fail("Expected an AUTHENTICATE in response to a STARTUP, got: " + startupResponse);
              }
          });
      }
  }
  