| /* |
| * 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.nifi.registry.web.mapper; |
| |
| import org.apache.commons.lang3.StringUtils; |
| import org.apache.nifi.registry.web.exception.UnauthorizedException; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import org.springframework.stereotype.Component; |
| |
| import javax.ws.rs.core.Response; |
| import javax.ws.rs.ext.ExceptionMapper; |
| import javax.ws.rs.ext.Provider; |
| |
| /** |
| * Maps Unauthorized exceptions into client responses that set the WWW-Authenticate header |
| * with a list of challenges (i.e., acceptable auth scheme types). |
| */ |
| @Component |
| @Provider |
| public class UnauthorizedExceptionMapper implements ExceptionMapper<UnauthorizedException> { |
| |
| private static final Logger logger = LoggerFactory.getLogger(UnauthorizedExceptionMapper.class); |
| |
| private static final String AUTHENTICATION_CHALLENGE_HEADER_NAME = "WWW-Authenticate"; |
| |
| @Override |
| public Response toResponse(UnauthorizedException exception) { |
| |
| logger.info("{}. Returning {} response.", exception, Response.Status.UNAUTHORIZED); |
| logger.debug(StringUtils.EMPTY, exception); |
| |
| final Response.ResponseBuilder response = Response.status(Response.Status.UNAUTHORIZED); |
| if (exception.getWwwAuthenticateChallenge() != null) { |
| response.header(AUTHENTICATION_CHALLENGE_HEADER_NAME, exception.getWwwAuthenticateChallenge()); |
| } |
| response.entity(exception.getMessage()).type("text/plain"); |
| return response.build(); |
| |
| } |
| |
| } |