| /* |
| * 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.hdfs.web.oauth2; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.classification.InterfaceStability; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.security.authentication.client.ConnectionConfigurator; |
| import org.apache.hadoop.util.ReflectionUtils; |
| |
| import java.io.IOException; |
| import java.net.HttpURLConnection; |
| |
| import static org.apache.hadoop.hdfs.client.HdfsClientConfigKeys.ACCESS_TOKEN_PROVIDER_KEY; |
| import static org.apache.hadoop.hdfs.web.oauth2.Utils.notNull; |
| |
| /** |
| * Configure a connection to use OAuth2 authentication. |
| */ |
| @InterfaceAudience.Public |
| @InterfaceStability.Evolving |
| public class OAuth2ConnectionConfigurator implements ConnectionConfigurator { |
| |
| public static final String HEADER = "Bearer "; |
| |
| private final AccessTokenProvider accessTokenProvider; |
| |
| private ConnectionConfigurator sslConfigurator = null; |
| |
| public OAuth2ConnectionConfigurator(Configuration conf) { |
| this(conf, null); |
| } |
| |
| @SuppressWarnings("unchecked") |
| public OAuth2ConnectionConfigurator(Configuration conf, |
| ConnectionConfigurator sslConfigurator) { |
| this.sslConfigurator = sslConfigurator; |
| |
| notNull(conf, ACCESS_TOKEN_PROVIDER_KEY); |
| |
| Class accessTokenProviderClass = conf.getClass(ACCESS_TOKEN_PROVIDER_KEY, |
| ConfCredentialBasedAccessTokenProvider.class, |
| AccessTokenProvider.class); |
| |
| accessTokenProvider = (AccessTokenProvider) ReflectionUtils |
| .newInstance(accessTokenProviderClass, conf); |
| accessTokenProvider.setConf(conf); |
| } |
| |
| @Override |
| public HttpURLConnection configure(HttpURLConnection conn) |
| throws IOException { |
| if(sslConfigurator != null) { |
| sslConfigurator.configure(conn); |
| } |
| |
| String accessToken = accessTokenProvider.getAccessToken(); |
| |
| conn.setRequestProperty("AUTHORIZATION", HEADER + accessToken); |
| |
| return conn; |
| } |
| } |