| /** |
| * 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.hadoop.crypto.key.kms.server; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| |
| import com.sun.jersey.api.container.ContainerException; |
| |
| import org.apache.hadoop.security.AccessControlException; |
| import org.apache.hadoop.security.UserGroupInformation; |
| import org.apache.hadoop.security.authentication.client.AuthenticationException; |
| import org.apache.hadoop.security.authorize.AuthorizationException; |
| import org.apache.hadoop.util.HttpExceptionUtils; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import javax.ws.rs.core.Response; |
| import javax.ws.rs.ext.ExceptionMapper; |
| import javax.ws.rs.ext.Provider; |
| |
| import java.io.IOException; |
| |
| /** |
| * Jersey provider that converts KMS exceptions into detailed HTTP errors. |
| */ |
| @Provider |
| @InterfaceAudience.Private |
| public class KMSExceptionsProvider implements ExceptionMapper<Exception> { |
| private static Logger LOG = |
| LoggerFactory.getLogger(KMSExceptionsProvider.class); |
| private final static Logger EXCEPTION_LOG = KMS.LOG; |
| |
| private static final String ENTER = System.getProperty("line.separator"); |
| |
| protected Response createResponse(Response.Status status, Throwable ex) { |
| return HttpExceptionUtils.createJerseyExceptionResponse(status, ex); |
| } |
| |
| protected String getOneLineMessage(Throwable exception) { |
| String message = exception.getMessage(); |
| if (message != null) { |
| int i = message.indexOf(ENTER); |
| if (i > -1) { |
| message = message.substring(0, i); |
| } |
| } |
| return message; |
| } |
| |
| /** |
| * Maps different exceptions thrown by KMS to HTTP status codes. |
| */ |
| @Override |
| public Response toResponse(Exception exception) { |
| Response.Status status; |
| boolean doAudit = true; |
| Throwable throwable = exception; |
| if (exception instanceof ContainerException) { |
| throwable = exception.getCause(); |
| } |
| if (throwable instanceof SecurityException) { |
| status = Response.Status.FORBIDDEN; |
| } else if (throwable instanceof AuthenticationException) { |
| status = Response.Status.FORBIDDEN; |
| // we don't audit here because we did it already when checking access |
| doAudit = false; |
| } else if (throwable instanceof AuthorizationException) { |
| status = Response.Status.FORBIDDEN; |
| // we don't audit here because we did it already when checking access |
| doAudit = false; |
| } else if (throwable instanceof AccessControlException) { |
| status = Response.Status.FORBIDDEN; |
| } else if (exception instanceof IOException) { |
| status = Response.Status.INTERNAL_SERVER_ERROR; |
| log(status, throwable); |
| } else if (exception instanceof UnsupportedOperationException) { |
| status = Response.Status.BAD_REQUEST; |
| } else if (exception instanceof IllegalArgumentException) { |
| status = Response.Status.BAD_REQUEST; |
| } else { |
| status = Response.Status.INTERNAL_SERVER_ERROR; |
| log(status, throwable); |
| } |
| if (doAudit) { |
| KMSWebApp.getKMSAudit().error(KMSMDCFilter.getUgi(), |
| KMSMDCFilter.getMethod(), |
| KMSMDCFilter.getURL(), getOneLineMessage(exception)); |
| } |
| EXCEPTION_LOG.warn("User {} request {} {} caused exception.", |
| KMSMDCFilter.getUgi(), KMSMDCFilter.getMethod(), |
| KMSMDCFilter.getURL(), exception); |
| return createResponse(status, throwable); |
| } |
| |
| protected void log(Response.Status status, Throwable ex) { |
| UserGroupInformation ugi = KMSMDCFilter.getUgi(); |
| String method = KMSMDCFilter.getMethod(); |
| String url = KMSMDCFilter.getURL(); |
| String msg = getOneLineMessage(ex); |
| LOG.warn("User:'{}' Method:{} URL:{} Response:{}-{}", ugi, method, url, |
| status, msg, ex); |
| } |
| |
| } |