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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.URIScheme;
34 import org.apache.hc.core5.http.impl.nio.ServerHttp1StreamDuplexerFactory;
35 import org.apache.hc.core5.http.nio.ssl.TlsStrategy;
36 import org.apache.hc.core5.http2.HttpVersionPolicy;
37 import org.apache.hc.core5.reactor.EndpointParameters;
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.Asserts;
42 import org.apache.hc.core5.util.Timeout;
43
44
45
46
47
48
49 @Contract(threading = ThreadingBehavior.IMMUTABLE_CONDITIONAL)
50 @Internal
51 public class ServerHttpProtocolNegotiatorFactory implements IOEventHandlerFactory {
52
53 private final ServerHttp1StreamDuplexerFactory http1StreamDuplexerFactory;
54 private final ServerH2StreamMultiplexerFactory http2StreamMultiplexerFactory;
55 private final HttpVersionPolicy versionPolicy;
56 private final TlsStrategy tlsStrategy;
57 private final Timeout handshakeTimeout;
58
59 public ServerHttpProtocolNegotiatorFactory(
60 final ServerHttp1StreamDuplexerFactory http1StreamDuplexerFactory,
61 final ServerH2StreamMultiplexerFactory http2StreamMultiplexerFactory,
62 final HttpVersionPolicy versionPolicy,
63 final TlsStrategy tlsStrategy,
64 final Timeout handshakeTimeout) {
65 this.http1StreamDuplexerFactory = Args.notNull(http1StreamDuplexerFactory, "HTTP/1.1 stream handler factory");
66 this.http2StreamMultiplexerFactory = Args.notNull(http2StreamMultiplexerFactory, "HTTP/2 stream handler factory");
67 this.versionPolicy = versionPolicy != null ? versionPolicy : HttpVersionPolicy.NEGOTIATE;
68 this.tlsStrategy = tlsStrategy;
69 this.handshakeTimeout = handshakeTimeout;
70 }
71
72 @Override
73 public ServerHttpProtocolNegotiator createHandler(final ProtocolIOSession ioSession, final Object attachment) {
74 HttpVersionPolicy endpointPolicy = versionPolicy;
75 if (attachment instanceof EndpointParameters) {
76 final EndpointParameters params = (EndpointParameters) attachment;
77 if (URIScheme.HTTPS.same(params.getScheme())) {
78 Asserts.notNull(tlsStrategy, "TLS strategy");
79 tlsStrategy.upgrade(
80 ioSession,
81 null,
82 ioSession.getLocalAddress(),
83 ioSession.getRemoteAddress(),
84 params.getAttachment(),
85 handshakeTimeout);
86 }
87 if (params.getAttachment() instanceof HttpVersionPolicy) {
88 endpointPolicy = (HttpVersionPolicy) params.getAttachment();
89 }
90 }
91 return new ServerHttpProtocolNegotiator(
92 ioSession,
93 http1StreamDuplexerFactory,
94 http2StreamMultiplexerFactory,
95 endpointPolicy);
96 }
97
98 }