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.authorization;
  
  import com.google.inject.Inject;
  import com.google.inject.Singleton;
  import io.vertx.core.http.HttpServerRequest;
  import io.vertx.core.net.SocketAddress;
  import io.vertx.ext.web.RoutingContext;
  import org.apache.cassandra.sidecar.common.server.data.Name;
  import org.apache.cassandra.sidecar.common.server.data.QualifiedTableName;
  import org.apache.cassandra.sidecar.concurrent.ExecutorPools;
  import org.apache.cassandra.sidecar.handlers.AbstractHandler;
  import org.apache.cassandra.sidecar.routes.RoutingContextUtils;
  import org.apache.cassandra.sidecar.snapshots.SnapshotPathBuilder;
  import org.apache.cassandra.sidecar.utils.CassandraInputValidator;
  import org.apache.cassandra.sidecar.utils.InstanceMetadataFetcher;
  import org.jetbrains.annotations.NotNull;
  
  /**
   * Simple handler that extracts authorization parameters keyspace/table parameters from the path, validates them,
   * and then adds them to the context.
   */
  @Singleton
  public class AuthorizationParameterValidateHandler extends AbstractHandler<QualifiedTableName>
  {
      private final SnapshotPathBuilder snapshotPathBuilder;
  
      /**
       * Constructs a handler with the provided {@code metadataFetcher}
       *
       * @param metadataFetcher the interface to retrieve instance metadata
       * @param executorPools   the executor pools for blocking executions
       * @param validator       a validator instance to validate Cassandra-specific input
       * @param snapshotPathBuilder snapshot path builder
       */
      @Inject
      protected AuthorizationParameterValidateHandler(InstanceMetadataFetcher metadataFetcher,
                                                      ExecutorPools executorPools,
                                                      CassandraInputValidator validator,
                                                      SnapshotPathBuilder snapshotPathBuilder)
      {
          super(metadataFetcher, executorPools, validator);
          this.snapshotPathBuilder = snapshotPathBuilder;
      }
  
      @Override
      protected void handleInternal(RoutingContext context,
                                    HttpServerRequest httpRequest,
                                    @NotNull String host,
                                    SocketAddress remoteAddress,
                                    QualifiedTableName qualifiedTableName)
      {
          RoutingContextUtils.put(context, RoutingContextUtils.SC_QUALIFIED_TABLE_NAME, qualifiedTableName);
      }
  
      @Override
      protected QualifiedTableName extractParamsOrThrow(RoutingContext context)
      {
          Name tableName = null;
          String tableNameParam = context.pathParam(TABLE_PATH_PARAM);
          if (tableNameParam != null)
          {
              // Remove the tableId for routes that have the tableId as part of the path parameter
              tableName = validator.validateTableName(snapshotPathBuilder.maybeRemoveTableId(tableNameParam));
          }
          return new QualifiedTableName(keyspace(context, false), tableName);
      }
  }
  