content: /*
   * 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.camel.component.http;
  
  import java.util.ArrayList;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  import org.apache.camel.Exchange;
  import org.apache.camel.component.http.handler.HeaderValidationHandler;
  import org.apache.camel.component.http.interceptor.RequestProxyBasicAuth;
  import org.apache.camel.component.http.interceptor.ResponseProxyBasicUnauthorized;
  import org.apache.camel.util.URISupport;
  import org.apache.hc.core5.http.HttpRequestInterceptor;
  import org.apache.hc.core5.http.HttpResponseInterceptor;
  import org.apache.hc.core5.http.impl.bootstrap.HttpServer;
  import org.apache.hc.core5.http.impl.bootstrap.ServerBootstrap;
  import org.apache.hc.core5.http.protocol.DefaultHttpProcessor;
  import org.apache.hc.core5.http.protocol.HttpProcessor;
  import org.apache.hc.core5.http.protocol.RequestValidateHost;
  import org.apache.hc.core5.http.protocol.ResponseContent;
  import org.junit.jupiter.api.Test;
  
  import static org.apache.camel.component.http.HttpMethods.GET;
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  public class HttpProxyServerTest extends BaseHttpTest {
  
      private HttpServer proxy;
  
      @Override
      public void setupResources() throws Exception {
          Map<String, String> expectedHeaders = new HashMap<>();
          // Don't test anymore the Proxy-Connection header as it is highly discouraged, so its support has been removed
          // https://issues.apache.org/jira/browse/HTTPCLIENT-1957
          //        expectedHeaders.put("Proxy-Connection", "Keep-Alive");
          proxy = ServerBootstrap.bootstrap()
                  .setCanonicalHostName("127.0.0.1").setHttpProcessor(getBasicHttpProcessor())
                  .setConnectionReuseStrategy(getConnectionReuseStrategy()).setResponseFactory(getHttpResponseFactory())
                  .setSslContext(getSSLContext())
                  .register("*",
                          new HeaderValidationHandler(GET.name(), null, null, getExpectedContent(), expectedHeaders))
                  .create();
          proxy.start();
      }
  
      @Override
      public void cleanupResources() throws Exception {
  
          if (proxy != null) {
              proxy.stop();
          }
      }
  
      @Override
      protected HttpProcessor getBasicHttpProcessor() {
          List<HttpRequestInterceptor> requestInterceptors = new ArrayList<>();
          requestInterceptors.add(new RequestValidateHost());
          requestInterceptors.add(new RequestProxyBasicAuth());
          List<HttpResponseInterceptor> responseInterceptors = new ArrayList<>();
          responseInterceptors.add(new ResponseContent());
          responseInterceptors.add(new ResponseProxyBasicUnauthorized());
          return new DefaultHttpProcessor(requestInterceptors, responseInterceptors);
      }
  
      @Test
      public void testDifferentHttpProxyConfigured() throws Exception {
          HttpEndpoint http1 = context.getEndpoint("http://www.google.com?proxyHost=www.myproxy.com&proxyAuthPort=1234",
                  HttpEndpoint.class);
          HttpEndpoint http2 = context.getEndpoint(
                  "http://www.google.com?test=parameter&proxyHost=www.otherproxy.com&proxyAuthPort=2345", HttpEndpoint.class);
          // HttpClientBuilder doesn't support get the configuration here
  
          //As the endpointUri is recreated, so the parameter could be in different place, so we use the URISupport.normalizeUri
          assertEquals("http://www.google.com?proxyAuthPort=1234&proxyHost=www.myproxy.com",
                  URISupport.normalizeUri(http1.getEndpointUri()), "Get a wrong endpoint uri of http1");
          assertEquals("http://www.google.com?proxyAuthPort=2345&proxyHost=www.otherproxy.com&test=parameter",
                  URISupport.normalizeUri(http2.getEndpointUri()), "Get a wrong endpoint uri of http2");
  
          assertEquals(http1.getEndpointKey(), http2.getEndpointKey(), "Should get the same EndpointKey");
      }
  
      @Test
      public void httpGetWithProxyAndWithoutUser() {
  
          Exchange exchange = template.request("http://" + getHost() + ":" + getProxyPort() + "?proxyHost="
                                               + getProxyHost() + "&proxyPort=" + getProxyPort(),
                  exchange1 -> {
                  });
  
          assertExchange(exchange);
      }
  
      @Test
      public void httpGetDeprecatedNames() {
  
          Exchange exchange = template.request("http://" + getHost() + ":" + getProxyPort() + "?proxyAuthHost="
                                               + getProxyHost() + "&proxyAuthPort=" + getProxyPort(),
                  exchange1 -> {
                  });
  
          assertExchange(exchange);
      }
  
      @Test
      public void httpGetWithProxyAndWithoutUserTwo() {
  
          Exchange exchange = template.request("http://" + getHost() + ":" + getProxyPort() + "?proxyHost=" + getProxyHost()
                                               + "&proxyPort=" + getProxyPort(),
                  exchange1 -> {
                  });
  
          assertExchange(exchange);
      }
  
      @Test
      public void httpGetWithProxyOnComponent() {
          HttpComponent http = context.getComponent("http", HttpComponent.class);
          http.setProxyHost(getProxyHost());
          http.setProxyPort(Integer.parseInt(getProxyPort()));
  
          Exchange exchange = template.request("http://" + getHost() + ":" + getProxyPort(), exchange1 -> {
          });
  
          http.setProxyHost(null);
          http.setProxyPort(null);
  
          assertExchange(exchange);
      }
  
      private String getHost() {
          return "127.0.0.1";
      }
  
      private String getProxyHost() {
          return "localhost";
      }
  
      private String getProxyPort() {
          return Integer.toString(proxy.getLocalPort());
      }
  
  }
  