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1   /*
2    * ====================================================================
3    * Licensed to the Apache Software Foundation (ASF) under one
4    * or more contributor license agreements.  See the NOTICE file
5    * distributed with this work for additional information
6    * regarding copyright ownership.  The ASF licenses this file
7    * to you under the Apache License, Version 2.0 (the
8    * "License"); you may not use this file except in compliance
9    * with the License.  You may obtain a copy of the License at
10   *
11   *   http://www.apache.org/licenses/LICENSE-2.0
12   *
13   * Unless required by applicable law or agreed to in writing,
14   * software distributed under the License is distributed on an
15   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16   * KIND, either express or implied.  See the License for the
17   * specific language governing permissions and limitations
18   * under the License.
19   * ====================================================================
20   *
21   * This software consists of voluntary contributions made by many
22   * individuals on behalf of the Apache Software Foundation.  For more
23   * information on the Apache Software Foundation, please see
24   * <http://www.apache.org/>.
25   *
26   */
27  
28  package org.apache.hc.core5.http2.impl.nio;
29  
30  import org.apache.hc.core5.annotation.Contract;
31  import org.apache.hc.core5.annotation.Internal;
32  import org.apache.hc.core5.annotation.ThreadingBehavior;
33  import org.apache.hc.core5.http.HttpHost;
34  import org.apache.hc.core5.http.URIScheme;
35  import org.apache.hc.core5.http.impl.nio.ClientHttp1StreamDuplexerFactory;
36  import org.apache.hc.core5.http.nio.ssl.TlsStrategy;
37  import org.apache.hc.core5.http2.HttpVersionPolicy;
38  import org.apache.hc.core5.reactor.IOEventHandlerFactory;
39  import org.apache.hc.core5.reactor.ProtocolIOSession;
40  import org.apache.hc.core5.util.Args;
41  import org.apache.hc.core5.util.Timeout;
42  
43  /**
44   * {@link ClientHttpProtocolNegotiator} factory.
45   *
46   * @since 5.0
47   */
48  @Contract(threading = ThreadingBehavior.IMMUTABLE_CONDITIONAL)
49  @Internal
50  public class ClientHttpProtocolNegotiatorFactory implements IOEventHandlerFactory {
51  
52      private final ClientHttp1StreamDuplexerFactory http1StreamHandlerFactory;
53      private final ClientH2StreamMultiplexerFactory http2StreamHandlerFactory;
54      private final HttpVersionPolicy versionPolicy;
55      private final TlsStrategy tlsStrategy;
56      private final Timeout handshakeTimeout;
57  
58      public ClientHttpProtocolNegotiatorFactory(
59              final ClientHttp1StreamDuplexerFactory http1StreamHandlerFactory,
60              final ClientH2StreamMultiplexerFactory http2StreamHandlerFactory,
61              final HttpVersionPolicy versionPolicy,
62              final TlsStrategy tlsStrategy,
63              final Timeout handshakeTimeout) {
64          this.http1StreamHandlerFactory = Args.notNull(http1StreamHandlerFactory, "HTTP/1.1 stream handler factory");
65          this.http2StreamHandlerFactory = Args.notNull(http2StreamHandlerFactory, "HTTP/2 stream handler factory");
66          this.versionPolicy = versionPolicy != null ? versionPolicy : HttpVersionPolicy.NEGOTIATE;
67          this.tlsStrategy = tlsStrategy;
68          this.handshakeTimeout = handshakeTimeout;
69      }
70  
71      @Override
72      public ClientHttpProtocolNegotiator createHandler(final ProtocolIOSession ioSession, final Object attachment) {
73          if (tlsStrategy != null && ioSession.getInitialEndpoint() instanceof HttpHost) {
74              final HttpHost../../../../../../../org/apache/hc/core5/http/HttpHost.html#HttpHost">HttpHost host = (HttpHost) ioSession.getInitialEndpoint();
75              if (URIScheme.HTTPS.same(host.getSchemeName())) {
76                  tlsStrategy.upgrade(
77                          ioSession,
78                          host,
79                          ioSession.getLocalAddress(),
80                          ioSession.getRemoteAddress(),
81                          attachment,
82                          handshakeTimeout);
83              }
84          }
85          return new ClientHttpProtocolNegotiator(
86                  ioSession,
87                  http1StreamHandlerFactory,
88                  http2StreamHandlerFactory,
89                  attachment instanceof HttpVersionPolicy./../../../../../org/apache/hc/core5/http2/HttpVersionPolicy.html#HttpVersionPolicy">HttpVersionPolicy ? (HttpVersionPolicy) attachment : versionPolicy);
90      }
91  
92  }