content: /*
   * Copyright 2014-2025 Real Logic Limited.
   *
   * Licensed 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
   *
   * https://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 io.aeron.security;
  
  import org.agrona.collections.ArrayUtil;
  
  /**
   * Default Authenticator which authenticates all connection requests immediately.
   */
  public class DefaultAuthenticatorSupplier implements AuthenticatorSupplier
  {
      /**
       * Singleton instance.
       */
      public static final DefaultAuthenticatorSupplier INSTANCE = new DefaultAuthenticatorSupplier();
  
      /**
       * The null encoded principal is an empty array of bytes.
       */
      public static final byte[] NULL_ENCODED_PRINCIPAL = ArrayUtil.EMPTY_BYTE_ARRAY;
  
      /**
       * Singleton instance which can be used to avoid allocation.
       */
      public static final Authenticator DEFAULT_AUTHENTICATOR = new DefaultAuthenticator();
  
      /**
       * Gets the singleton instance {@link #DEFAULT_AUTHENTICATOR} which authenticates all connection requests
       * immediately.
       *
       * @return {@link #DEFAULT_AUTHENTICATOR} which authenticates all connection requests immediately.
       */
      public Authenticator get()
      {
          return DEFAULT_AUTHENTICATOR;
      }
  
      static final class DefaultAuthenticator implements Authenticator
      {
          public void onConnectRequest(final long sessionId, final byte[] encodedCredentials, final long nowMs)
          {
          }
  
          public void onChallengeResponse(final long sessionId, final byte[] encodedCredentials, final long nowMs)
          {
          }
  
          public void onConnectedSession(final SessionProxy sessionProxy, final long nowMs)
          {
              sessionProxy.authenticate(NULL_ENCODED_PRINCIPAL);
          }
  
          public void onChallengedSession(final SessionProxy sessionProxy, final long nowMs)
          {
              sessionProxy.authenticate(NULL_ENCODED_PRINCIPAL);
          }
      }
  }
  