/*
 * 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.iotdb.db.protocol.rest.handler;

import org.apache.iotdb.db.auth.AuthException;
import org.apache.iotdb.db.exception.query.QueryProcessException;
import org.apache.iotdb.db.protocol.rest.model.ExecutionStatus;
import org.apache.iotdb.db.qp.physical.PhysicalPlan;
import org.apache.iotdb.db.service.basic.ServiceProvider;
import org.apache.iotdb.rpc.TSStatusCode;

import javax.ws.rs.core.Response;
import javax.ws.rs.core.SecurityContext;

public class AuthorizationHandler {
  private final ServiceProvider serviceProvider;

  public AuthorizationHandler(ServiceProvider serviceProvider) throws QueryProcessException {
    this.serviceProvider = serviceProvider;
  }

  public Response checkAuthority(SecurityContext securityContext, PhysicalPlan physicalPlan) {
    try {
      if (!this.serviceProvider.checkAuthorization(
          physicalPlan, securityContext.getUserPrincipal().getName())) {
        return Response.ok()
            .entity(
                new ExecutionStatus()
                    .code(TSStatusCode.NO_PERMISSION_ERROR.getStatusCode())
                    .message(TSStatusCode.NO_PERMISSION_ERROR.name()))
            .build();
      }
    } catch (AuthException e) {
      return Response.ok().entity(ExceptionHandler.tryCatchException(e)).build();
    }
    return null;
  }
}
