/*
    * ====================================================================
    * 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 java.net.URI;
  import java.util.List;
  
  import org.apache.hc.client5.http.classic.methods.HttpGet;
  import org.apache.hc.client5.http.cookie.BasicCookieStore;
  import org.apache.hc.client5.http.cookie.Cookie;
  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.core5.http.ClassicHttpRequest;
  import org.apache.hc.core5.http.HttpEntity;
  import org.apache.hc.core5.http.io.entity.EntityUtils;
  import org.apache.hc.core5.http.io.support.ClassicRequestBuilder;
  
  /**
   * A example that demonstrates how HttpClient APIs can be used to perform
   * form-based logon.
   */
  public class ClientFormLogin {
  
      public static void main(final String[] args) throws Exception {
          final BasicCookieStore cookieStore = new BasicCookieStore();
          try (final CloseableHttpClient httpclient = HttpClients.custom()
                  .setDefaultCookieStore(cookieStore)
                  .build()) {
              final HttpGet httpget = new HttpGet("https://someportal/");
              try (final CloseableHttpResponse response1 = httpclient.execute(httpget)) {
                  final HttpEntity entity = response1.getEntity();
  
                  System.out.println("Login form get: " + response1.getCode() + " " + response1.getReasonPhrase());
                  EntityUtils.consume(entity);
  
                  System.out.println("Initial set of cookies:");
                  final List<Cookie> cookies = cookieStore.getCookies();
                  if (cookies.isEmpty()) {
                      System.out.println("None");
                  } else {
                      for (int i = 0; i < cookies.size(); i++) {
                          System.out.println("- " + cookies.get(i));
                      }
                  }
              }
  
              final ClassicHttpRequest login = ClassicRequestBuilder.post()
                      .setUri(new URI("https://someportal/"))
                      .addParameter("IDToken1", "username")
                      .addParameter("IDToken2", "password")
                      .build();
              try (final CloseableHttpResponse response2 = httpclient.execute(login)) {
                  final HttpEntity entity = response2.getEntity();
  
                  System.out.println("Login form get: " + response2.getCode() + " " + response2.getReasonPhrase());
                  EntityUtils.consume(entity);
  
                  System.out.println("Post logon cookies:");
                  final List<Cookie> cookies = cookieStore.getCookies();
                  if (cookies.isEmpty()) {
                      System.out.println("None");
                  } else {
                      for (int i = 0; i < cookies.size(); i++) {
                          System.out.println("- " + cookies.get(i));
                      }
                  }
              }
          }
      }
  }