| /** |
| * 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.ambari.server.view; |
| |
| import org.apache.ambari.server.configuration.ComponentSSLConfiguration; |
| import org.apache.ambari.server.controller.internal.URLStreamProvider; |
| import org.apache.ambari.server.proxy.ProxyService; |
| import org.apache.ambari.view.AmbariHttpException; |
| import org.apache.ambari.view.AmbariStreamProvider; |
| import org.apache.commons.codec.binary.Base64; |
| import org.apache.commons.io.IOUtils; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.net.HttpURLConnection; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * Provider of an input stream for a request to the Remote Ambari server. |
| */ |
| public class RemoteAmbariStreamProvider implements AmbariStreamProvider { |
| |
| private String baseUrl; |
| |
| private String username; |
| |
| private String password; |
| |
| private URLStreamProvider urlStreamProvider; |
| |
| public RemoteAmbariStreamProvider(String baseUrl, String username, String password, int connectTimeout, int readTimeout) { |
| this.baseUrl = baseUrl; |
| this.username = username; |
| this.password = password; |
| |
| ComponentSSLConfiguration sslConfiguration = ComponentSSLConfiguration.instance(); |
| this.urlStreamProvider = |
| new URLStreamProvider( |
| connectTimeout, |
| readTimeout, |
| sslConfiguration.getTruststorePath(), |
| sslConfiguration.getTruststorePassword(), |
| sslConfiguration.getTruststoreType()); |
| } |
| |
| @Override |
| public InputStream readFrom(String path, String requestMethod, String body, Map<String, String> headers) throws IOException, AmbariHttpException { |
| return getInputStream(urlStreamProvider.processURL(getUrl(path), requestMethod, body, addHeaders(headers))); |
| } |
| |
| @Override |
| public InputStream readFrom(String path, String requestMethod, InputStream body, Map<String, String> headers) throws IOException, AmbariHttpException { |
| return getInputStream(urlStreamProvider.processURL(getUrl(path), requestMethod, body, addHeaders(headers))); |
| } |
| |
| private InputStream getInputStream(HttpURLConnection connection) throws IOException, AmbariHttpException { |
| int responseCode = connection.getResponseCode(); |
| if(responseCode >= ProxyService.HTTP_ERROR_RANGE_START){ |
| throw new AmbariHttpException(IOUtils.toString(connection.getErrorStream()),responseCode); |
| } |
| return connection.getInputStream(); |
| } |
| |
| private String getUrl(String path){ |
| String basePath = baseUrl; |
| return path.startsWith("/") ? basePath + path : basePath + "/" + path; |
| } |
| |
| private void addRequestedByHeaders(HashMap<String, String> newHeaders) { |
| newHeaders.put("X-Requested-By", "AMBARI"); |
| } |
| |
| private Map<String,List<String>> modifyHeaders(Map<String,String> headers){ |
| Map<String, List<String>> headerMap = new HashMap<String, List<String>>(); |
| for (Map.Entry<String, String> entry : headers.entrySet()) { |
| headerMap.put(entry.getKey(), Collections.singletonList(entry.getValue())); |
| } |
| return headerMap; |
| } |
| |
| private Map<String, List<String>> addHeaders(Map<String, String> customHeaders) { |
| HashMap<String, String> newHeaders = new HashMap<String, String>(); |
| if (customHeaders != null) |
| newHeaders.putAll(customHeaders); |
| |
| addBasicAuthHeaders(newHeaders); |
| addRequestedByHeaders(newHeaders); |
| return modifyHeaders(newHeaders); |
| } |
| |
| private void addBasicAuthHeaders(HashMap<String, String> headers) { |
| String authString = username + ":" + password; |
| byte[] authEncBytes = Base64.encodeBase64(authString.getBytes()); |
| String authStringEnc = new String(authEncBytes); |
| |
| headers.put("Authorization", "Basic " + authStringEnc); |
| } |
| |
| } |