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.kafka.common.security.authenticator;
  
  import org.apache.kafka.common.config.internals.BrokerSecurityConfigs;
  
  public class SaslInternalConfigs {
      /**
       * The server (broker) specifies a positive session length in milliseconds to a
       * SASL client when {@link BrokerSecurityConfigs#CONNECTIONS_MAX_REAUTH_MS_CONFIG} is
       * positive as per <a href=
       * "https://cwiki.apache.org/confluence/display/KAFKA/KIP-368%3A+Allow+SASL+Connections+to+Periodically+Re-Authenticate">KIP
       * 368: Allow SASL Connections to Periodically Re-Authenticate</a>. The session
       * length is the minimum of the configured value and any session length implied
       * by the credential presented during authentication. The lifetime defined by
       * the credential, in terms of milliseconds since the epoch, is available via a
       * negotiated property on the SASL Server instance, and that value can be
       * converted to a session length by subtracting the time at which authentication
       * occurred. This variable defines the negotiated property key that is used to
       * communicate the credential lifetime in milliseconds since the epoch.
       */
      public static final String CREDENTIAL_LIFETIME_MS_SASL_NEGOTIATED_PROPERTY_KEY = "CREDENTIAL.LIFETIME.MS";
  
      private SaslInternalConfigs() {
          // empty
      }
  }
  