| /** |
| * 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 backtype.storm.security.auth.authorizer; |
| |
| import java.util.Map; |
| |
| import backtype.storm.security.auth.IAuthorizer; |
| import backtype.storm.security.auth.ReqContext; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public abstract class DRPCAuthorizerBase implements IAuthorizer { |
| public static final Logger LOG = LoggerFactory.getLogger(DRPCAuthorizerBase.class); |
| |
| /** |
| * A key name for the function requested to be executed by a user. |
| */ |
| public static final String FUNCTION_NAME = "function.name"; |
| |
| @Override |
| public abstract void prepare(Map conf); |
| |
| abstract protected boolean permitClientRequest(ReqContext context, String operation, Map params); |
| |
| abstract protected boolean permitInvocationRequest(ReqContext context, String operation, Map params); |
| |
| /** |
| * Authorizes request from to the DRPC server. |
| * @param context the client request context |
| * @param operation the operation requested by the DRPC server |
| * @param params a Map with any key-value entries of use to the authorization implementation |
| */ |
| @Override |
| public boolean permit(ReqContext context, String operation, Map params) { |
| if ("execute".equals(operation)) { |
| return permitClientRequest(context, operation, params); |
| } else if ("failRequest".equals(operation) || |
| "fetchRequest".equals(operation) || |
| "result".equals(operation)) { |
| return permitInvocationRequest(context, operation, params); |
| } |
| // Deny unsupported operations. |
| LOG.warn("Denying unsupported operation \""+operation+"\" from "+ |
| context.remoteAddress()); |
| return false; |
| } |
| } |