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   * 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
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   * 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
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  package org.apache.cassandra.auth;
  
  import java.io.IOException;
  import java.security.cert.Certificate;
  import java.security.cert.CertificateException;
  import java.util.Arrays;
  import java.util.Collections;
  
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.rules.ExpectedException;
  
  import org.apache.cassandra.config.Config;
  import org.apache.cassandra.config.DatabaseDescriptor;
  import org.apache.cassandra.config.EncryptionOptions.ServerEncryptionOptions.Builder;
  import org.apache.cassandra.config.ParameterizedClass;
  import org.apache.cassandra.locator.InetAddressAndPort;
  import org.apache.cassandra.utils.MBeanWrapper;
  
  import static org.apache.cassandra.auth.AuthTestUtils.loadCertificateChain;
  import static org.apache.cassandra.auth.IInternodeAuthenticator.InternodeConnectionDirection.INBOUND;
  import static org.apache.cassandra.config.YamlConfigurationLoaderTest.load;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertNotNull;
  import static org.junit.Assert.assertTrue;
  
  public class AuthConfigTest
  {
      @Rule
      public ExpectedException expectedException = ExpectedException.none();
  
      @Test
      public void testNewInstanceForMutualTlsInternodeAuthenticator() throws IOException, CertificateException
      {
          Config config = load("cassandra-mtls.yaml");
          config.internode_authenticator.class_name = "org.apache.cassandra.auth.MutualTlsInternodeAuthenticator";
          config.internode_authenticator.parameters = Collections.singletonMap("validator_class_name", "org.apache.cassandra.auth.SpiffeCertificateValidator");
          config.server_encryption_options = new Builder(config.server_encryption_options)
                                             .withOutboundKeystore("test/conf/cassandra_ssl_test_outbound.keystore")
                                             .withOutboundKeystorePassword("cassandra")
                                             .build();
          DatabaseDescriptor.setConfig(config);
          MutualTlsInternodeAuthenticator authenticator = ParameterizedClass.newInstance(config.internode_authenticator,
                                                                                         Arrays.asList("", "org.apache.cassandra.auth."));
  
          InetAddressAndPort address = InetAddressAndPort.getByName("127.0.0.1");
  
          Certificate[] authorizedCertificates = loadCertificateChain("auth/SampleMtlsClientCertificate.pem");
          assertTrue(authenticator.authenticate(address.getAddress(), address.getPort(), authorizedCertificates, INBOUND));
  
          Certificate[] unauthorizedCertificates = loadCertificateChain("auth/SampleUnauthorizedMtlsClientCertificate.pem");
          assertFalse(authenticator.authenticate(address.getAddress(), address.getPort(), unauthorizedCertificates, INBOUND));
      }
  
      @Test
      public void testNewInstanceForMutualTlsWithPasswordFallbackAuthenticator()
      {
          Config config = load("cassandra-mtls.yaml");
          config.client_encryption_options.applyConfig();
          config.authenticator.class_name = "org.apache.cassandra.auth.MutualTlsWithPasswordFallbackAuthenticator";
          config.authenticator.parameters = Collections.singletonMap("validator_class_name", "org.apache.cassandra.auth.SpiffeCertificateValidator");
          DatabaseDescriptor.setConfig(config);
          MutualTlsWithPasswordFallbackAuthenticator authenticator = ParameterizedClass.newInstance(config.authenticator,
                                                                                                    Arrays.asList("", "org.apache.cassandra.auth."));
          assertNotNull(authenticator);
          unregisterIdentitesCache();
      }
  
      @Test
      public void testNewInstanceForMutualTlsAuthenticator() throws IOException, CertificateException
      {
          Config config = load("cassandra-mtls.yaml");
          config.client_encryption_options.applyConfig();
          DatabaseDescriptor.setConfig(config);
          MutualTlsAuthenticator authenticator = ParameterizedClass.newInstance(config.authenticator,
                                                                                Arrays.asList("", "org.apache.cassandra.auth."));
          assertNotNull(authenticator);
          unregisterIdentitesCache();
      }
  
      private void unregisterIdentitesCache()
      {
          MBeanWrapper.instance.unregisterMBean("org.apache.cassandra.auth:type=IdentitiesCache");
      }
  }
  