| /* |
| * ==================================================================== |
| * 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| */ |
| package org.apache.hc.client5.http.examples; |
| |
| import org.apache.hc.client5.http.auth.UsernamePasswordCredentials; |
| import org.apache.hc.client5.http.classic.methods.HttpGet; |
| import org.apache.hc.client5.http.impl.auth.BasicScheme; |
| import org.apache.hc.client5.http.impl.classic.CloseableHttpClient; |
| import org.apache.hc.client5.http.impl.classic.CloseableHttpResponse; |
| import org.apache.hc.client5.http.impl.classic.HttpClients; |
| import org.apache.hc.client5.http.protocol.HttpClientContext; |
| import org.apache.hc.core5.http.HttpHost; |
| import org.apache.hc.core5.http.io.entity.EntityUtils; |
| |
| /** |
| * An example of how HttpClient can be customized to authenticate |
| * preemptively using Basic scheme. |
| * <b/> |
| * Generally, preemptive authentication can be considered less |
| * secure than a response to an authentication challenge |
| * and therefore discouraged. |
| */ |
| public class ClientPreemptiveBasicAuthentication { |
| |
| public static void main(final String[] args) throws Exception { |
| try (final CloseableHttpClient httpclient = HttpClients.createDefault()) { |
| |
| // Generate Basic scheme object and add it to the local auth cache |
| final BasicScheme basicAuth = new BasicScheme(); |
| basicAuth.initPreemptive(new UsernamePasswordCredentials("user", "passwd".toCharArray())); |
| |
| final HttpHost target = new HttpHost("http", "httpbin.org", 80); |
| |
| // Add AuthCache to the execution context |
| final HttpClientContext localContext = HttpClientContext.create(); |
| localContext.resetAuthExchange(target, basicAuth); |
| |
| final HttpGet httpget = new HttpGet("http://httpbin.org/hidden-basic-auth/user/passwd"); |
| |
| System.out.println("Executing request " + httpget.getMethod() + " " + httpget.getUri()); |
| for (int i = 0; i < 3; i++) { |
| try (final CloseableHttpResponse response = httpclient.execute(httpget, localContext)) { |
| System.out.println("----------------------------------------"); |
| System.out.println(response.getCode() + " " + response.getReasonPhrase()); |
| System.out.println(EntityUtils.toString(response.getEntity())); |
| } |
| } |
| } |
| } |
| |
| } |