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.sidecar.acl.authentication;
  
  import java.util.Map;
  
  import com.google.inject.Inject;
  import com.google.inject.Singleton;
  import io.vertx.core.Vertx;
  import io.vertx.ext.web.handler.impl.AuthenticationHandlerInternal;
  import org.apache.cassandra.sidecar.config.AccessControlConfiguration;
  import org.apache.cassandra.sidecar.exceptions.ConfigurationException;
  import org.apache.cassandra.sidecar.metrics.server.AuthMetrics;
  import org.apache.cassandra.sidecar.tasks.PeriodicTaskExecutor;
  
  /**
   * {@link AuthenticationHandlerFactory} implementation for providing JWT authentication handler
   * {@link ReloadingJwtAuthenticationHandler}. {@link ReloadingJwtAuthenticationHandler} uses Vert.x's
   * {@link io.vertx.ext.web.handler.impl.OAuth2AuthHandlerImpl} which does
   * {@link io.vertx.ext.auth.authentication.TokenCredentials} validation.
   */
  @Singleton
  public class JwtAuthenticationHandlerFactory implements AuthenticationHandlerFactory
  {
      private final JwtRoleProcessor roleProcessor;
      private final PeriodicTaskExecutor periodicTaskExecutor;
  
      @Inject
      public JwtAuthenticationHandlerFactory(JwtRoleProcessor roleProcessor,
                                             PeriodicTaskExecutor periodicTaskExecutor)
      {
          this.roleProcessor = roleProcessor;
          this.periodicTaskExecutor = periodicTaskExecutor;
      }
  
      @Override
      public AuthenticationHandlerInternal create(Vertx vertx,
                                                  AccessControlConfiguration accessControlConfiguration,
                                                  Map<String, String> parameters,
                                                  AuthMetrics metrics) throws ConfigurationException
      {
          JwtParameters jwtParameters = parameterParser(parameters);
          return new ReloadingJwtAuthenticationHandler(vertx,
                                                       jwtParameters,
                                                       roleProcessor,
                                                       periodicTaskExecutor,
                                                       metrics);
      }
  
      protected JwtParameters parameterParser(Map<String, String> parameters)
      {
          return new JwtParameterExtractor(parameters);
      }
  }
  