| /** |
| * 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.kerby.has.client; |
| |
| import org.apache.kerby.has.common.HasConfig; |
| import org.apache.kerby.has.common.ssl.SSLFactory; |
| import org.apache.kerby.has.common.util.URLConnectionFactory; |
| import org.apache.kerby.kerberos.kerb.KrbException; |
| |
| import java.io.BufferedReader; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.net.HttpURLConnection; |
| import java.net.ProtocolException; |
| import java.net.URL; |
| |
| public class HasClientUtil { |
| |
| public static HttpURLConnection getHttpsConnection(HasConfig hasConfig, URL url, boolean isSpnego) |
| throws Exception { |
| HasConfig conf = new HasConfig(); |
| |
| conf.setString(SSLFactory.SSL_HOSTNAME_VERIFIER_KEY, "ALLOW_ALL"); |
| String sslClientConf = hasConfig.getSslClientConf(); |
| conf.setString(SSLFactory.SSL_CLIENT_CONF_KEY, sslClientConf); |
| conf.setBoolean(SSLFactory.SSL_REQUIRE_CLIENT_CERT_KEY, false); |
| |
| URLConnectionFactory connectionFactory = URLConnectionFactory |
| .newDefaultURLConnectionFactory(conf); |
| return (HttpURLConnection) connectionFactory.openConnection(url, isSpnego, hasConfig); |
| } |
| |
| /** |
| * Create an authenticated connection to the Has server. |
| * <p> |
| * It uses Hadoop-auth client authentication which by default supports |
| * Kerberos HTTP SPNEGO, Pseudo/Simple and anonymous. |
| * |
| * @param hasConfig the HAS client config. |
| * @param url the URL to open a HTTP connection to. |
| * @param method the HTTP method for the HTTP connection. |
| * @param isSpnego true or false. |
| * @return an authenticated connection to the has server. |
| * @throws IOException if an IO error occurred. |
| */ |
| public static HttpURLConnection createConnection(HasConfig hasConfig, URL url, String method, boolean isSpnego) |
| throws KrbException { |
| HttpURLConnection conn = null; |
| if (hasConfig.getHttpsPort() != null && hasConfig.getHttpsHost() != null) { |
| try { |
| conn = getHttpsConnection(hasConfig, url, isSpnego); |
| } catch (Exception e) { |
| throw new KrbException("Error occurred when creating https connection. " |
| + e.getMessage()); |
| } |
| } |
| try { |
| conn.setRequestMethod(method); |
| } catch (ProtocolException e) { |
| throw new KrbException("Failed to set the method for URL request.", e); |
| } |
| if (method.equals("POST") || method.equals("PUT")) { |
| conn.setDoOutput(true); |
| } |
| conn.setRequestProperty("Content-Type", "application/json; charset=UTF-8"); |
| return conn; |
| } |
| |
| public static String getBaseUrl(HasConfig hasConfig, String input) throws KrbException { |
| String url = null; |
| if (hasConfig.getHttpsPort() != null && hasConfig.getHttpsHost() != null) { |
| url = "https://" + hasConfig.getHttpsHost() + ":" + hasConfig.getHttpsPort() |
| + "/has/v1/" + input + "/"; |
| } |
| if (url == null) { |
| throw new KrbException("Please set the https address and port."); |
| } |
| return url; |
| } |
| |
| public static String getResponse(HttpURLConnection httpConn) throws IOException { |
| StringBuilder data = new StringBuilder(); |
| |
| InputStream inputStream = getInputStream(httpConn); |
| BufferedReader br; |
| if (inputStream != null) { |
| br = new BufferedReader(new InputStreamReader(inputStream)); |
| } else { |
| throw new IOException("Failed to get the InputStream"); |
| } |
| String s; |
| while ((s = br.readLine()) != null) { |
| data.append(s); |
| } |
| return data.toString(); |
| } |
| |
| public static InputStream getInputStream(HttpURLConnection httpConn) throws IOException { |
| InputStream inputStream; |
| if (httpConn.getResponseCode() < HttpURLConnection.HTTP_BAD_REQUEST) { |
| inputStream = httpConn.getInputStream(); |
| } else { |
| /* Error from server */ |
| inputStream = httpConn.getErrorStream(); |
| } |
| return inputStream; |
| } |
| } |