Examples with AsyncServerExchangeHandler org.apache.hc.core5.http.nio.AsyncServerExchangeHandler used on opensource projects

Example 1 with AsyncServerExchangeHandler

use of org.apache.hc.core5.http.nio.AsyncServerExchangeHandler in project httpcomponents-core by apache.

the class H2IntegrationTest method testPrematureResponse.

@Test
public void testPrematureResponse() throws Exception {
    server.register("*", new Supplier<AsyncServerExchangeHandler>() {

        @Override
        public AsyncServerExchangeHandler get() {
            return new AsyncServerExchangeHandler() {

                private final AtomicReference<AsyncResponseProducer> responseProducer = new AtomicReference<>();

                @Override
                public void updateCapacity(final CapacityChannel capacityChannel) throws IOException {
                    capacityChannel.update(Integer.MAX_VALUE);
                }

                @Override
                public void consume(final ByteBuffer src) throws IOException {
                }

                @Override
                public void streamEnd(final List<? extends Header> trailers) throws HttpException, IOException {
                }

                @Override
                public void handleRequest(final HttpRequest request, final EntityDetails entityDetails, final ResponseChannel responseChannel, final HttpContext context) throws HttpException, IOException {
                    final AsyncResponseProducer producer;
                    final Header h = request.getFirstHeader("password");
                    if (h != null && "secret".equals(h.getValue())) {
                        producer = new BasicResponseProducer(HttpStatus.SC_OK, "All is well");
                    } else {
                        producer = new BasicResponseProducer(HttpStatus.SC_UNAUTHORIZED, "You shall not pass");
                    }
                    responseProducer.set(producer);
                    producer.sendResponse(responseChannel, context);
                }

                @Override
                public int available() {
                    final AsyncResponseProducer producer = this.responseProducer.get();
                    return producer.available();
                }

                @Override
                public void produce(final DataStreamChannel channel) throws IOException {
                    final AsyncResponseProducer producer = this.responseProducer.get();
                    producer.produce(channel);
                }

                @Override
                public void failed(final Exception cause) {
                }

                @Override
                public void releaseResources() {
                }
            };
        }
    });
    final InetSocketAddress serverEndpoint = server.start();
    client.start();
    final Future<ClientSessionEndpoint> connectFuture = client.connect("localhost", serverEndpoint.getPort(), TIMEOUT);
    final ClientSessionEndpoint streamEndpoint = connectFuture.get();
    final HttpRequest request1 = new BasicHttpRequest(Method.POST, createRequestURI(serverEndpoint, "/echo"));
    final Future<Message<HttpResponse, String>> future1 = streamEndpoint.execute(new BasicRequestProducer(request1, new MultiLineEntityProducer("0123456789abcdef", 5000)), new BasicResponseConsumer<>(new StringAsyncEntityConsumer()), null);
    final Message<HttpResponse, String> result1 = future1.get(TIMEOUT.getDuration(), TIMEOUT.getTimeUnit());
    Assertions.assertNotNull(result1);
    final HttpResponse response1 = result1.getHead();
    Assertions.assertNotNull(response1);
    Assertions.assertEquals(HttpStatus.SC_UNAUTHORIZED, response1.getCode());
    Assertions.assertNotNull("You shall not pass", result1.getBody());
}

Example 2 with AsyncServerExchangeHandler

use of org.apache.hc.core5.http.nio.AsyncServerExchangeHandler in project httpcomponents-core by apache.

the class H2IntegrationTest method testPushRefused.

@Test
public void testPushRefused() throws Exception {
    final BlockingQueue<Exception> pushResultQueue = new LinkedBlockingDeque<>();
    final InetSocketAddress serverEndpoint = server.start();
    server.register("/hello", new Supplier<AsyncServerExchangeHandler>() {

        @Override
        public AsyncServerExchangeHandler get() {
            return new MessageExchangeHandler<Void>(new DiscardingEntityConsumer<>()) {

                @Override
                protected void handle(final Message<HttpRequest, Void> request, final AsyncServerRequestHandler.ResponseTrigger responseTrigger, final HttpContext context) throws IOException, HttpException {
                    responseTrigger.pushPromise(new BasicHttpRequest(Method.GET, createRequestURI(serverEndpoint, "/stuff")), context, new BasicPushProducer(AsyncEntityProducers.create("Pushing all sorts of stuff")) {

                        @Override
                        public void failed(final Exception cause) {
                            pushResultQueue.add(cause);
                            super.failed(cause);
                        }
                    });
                    responseTrigger.pushPromise(new BasicHttpRequest(Method.GET, createRequestURI(serverEndpoint, "/more-stuff")), context, new BasicPushProducer(new MultiLineEntityProducer("Pushing lots of stuff", 500)) {

                        @Override
                        public void failed(final Exception cause) {
                            pushResultQueue.add(cause);
                            super.failed(cause);
                        }
                    });
                    responseTrigger.submitResponse(new BasicResponseProducer(HttpStatus.SC_OK, AsyncEntityProducers.create("Hi there")), context);
                }
            };
        }
    });
    client.start(H2Config.custom().setPushEnabled(true).build());
    final Future<ClientSessionEndpoint> connectFuture = client.connect("localhost", serverEndpoint.getPort(), TIMEOUT);
    final ClientSessionEndpoint streamEndpoint = connectFuture.get();
    final Future<Message<HttpResponse, String>> future1 = streamEndpoint.execute(new BasicRequestProducer(Method.GET, createRequestURI(serverEndpoint, "/hello")), new BasicResponseConsumer<>(new StringAsyncEntityConsumer()), null);
    final Message<HttpResponse, String> result1 = future1.get(TIMEOUT.getDuration(), TIMEOUT.getTimeUnit());
    Assertions.assertNotNull(result1);
    final HttpResponse response1 = result1.getHead();
    final String entity1 = result1.getBody();
    Assertions.assertNotNull(response1);
    Assertions.assertEquals(200, response1.getCode());
    Assertions.assertEquals("Hi there", entity1);
    final Object result2 = pushResultQueue.poll(5, TimeUnit.SECONDS);
    Assertions.assertNotNull(result2);
    Assertions.assertTrue(result2 instanceof H2StreamResetException);
    Assertions.assertEquals(H2Error.REFUSED_STREAM.getCode(), ((H2StreamResetException) result2).getCode());
    final Object result3 = pushResultQueue.poll(5, TimeUnit.SECONDS);
    Assertions.assertNotNull(result3);
    Assertions.assertTrue(result3 instanceof H2StreamResetException);
    Assertions.assertEquals(H2Error.REFUSED_STREAM.getCode(), ((H2StreamResetException) result3).getCode());
}

Example 3 with AsyncServerExchangeHandler

use of org.apache.hc.core5.http.nio.AsyncServerExchangeHandler in project httpcomponents-core by apache.

the class H2TestServer method start.

public InetSocketAddress start(final HttpProcessor httpProcessor, final Decorator<AsyncServerExchangeHandler> exchangeHandlerDecorator, final H2Config h2Config) throws Exception {
    start(new InternalServerProtocolNegotiationStarter(httpProcessor != null ? httpProcessor : H2Processors.server(), new DefaultAsyncResponseExchangeHandlerFactory(registry, exchangeHandlerDecorator != null ? exchangeHandlerDecorator : BasicAsyncServerExpectationDecorator::new), HttpVersionPolicy.FORCE_HTTP_2, h2Config, Http1Config.DEFAULT, CharCodingConfig.DEFAULT, sslContext, sslSessionInitializer, sslSessionVerifier));
    final Future<ListenerEndpoint> future = listen(new InetSocketAddress(0));
    final ListenerEndpoint listener = future.get();
    return (InetSocketAddress) listener.getAddress();
}

Example 4 with AsyncServerExchangeHandler

use of org.apache.hc.core5.http.nio.AsyncServerExchangeHandler in project httpcomponents-core by apache.

the class H2ServerBootstrap method create.

public HttpAsyncServer create() {
    final String actualCanonicalHostName = canonicalHostName != null ? canonicalHostName : InetAddressUtils.getCanonicalLocalHostName();
    final RequestHandlerRegistry<Supplier<AsyncServerExchangeHandler>> registry = new RequestHandlerRegistry<>(actualCanonicalHostName, () -> lookupRegistry != null ? lookupRegistry : UriPatternType.newMatcher(UriPatternType.URI_PATTERN));
    for (final HandlerEntry<Supplier<AsyncServerExchangeHandler>> entry : handlerList) {
        registry.register(entry.hostname, entry.uriPattern, entry.handler);
    }
    final HandlerFactory<AsyncServerExchangeHandler> handlerFactory;
    if (!filters.isEmpty()) {
        final NamedElementChain<AsyncFilterHandler> filterChainDefinition = new NamedElementChain<>();
        filterChainDefinition.addLast(new TerminalAsyncServerFilter(new DefaultAsyncResponseExchangeHandlerFactory(registry)), StandardFilter.MAIN_HANDLER.name());
        filterChainDefinition.addFirst(new AsyncServerExpectationFilter(), StandardFilter.EXPECT_CONTINUE.name());
        for (final FilterEntry<AsyncFilterHandler> entry : filters) {
            switch(entry.position) {
                case AFTER:
                    filterChainDefinition.addAfter(entry.existing, entry.filterHandler, entry.name);
                    break;
                case BEFORE:
                    filterChainDefinition.addBefore(entry.existing, entry.filterHandler, entry.name);
                    break;
                case REPLACE:
                    filterChainDefinition.replace(entry.existing, entry.filterHandler);
                    break;
                case FIRST:
                    filterChainDefinition.addFirst(entry.filterHandler, entry.name);
                    break;
                case LAST:
                    // Don't add last, after TerminalAsyncServerFilter, as that does not delegate to the chain
                    // Instead, add the filter just before it, making it effectively the last filter
                    filterChainDefinition.addBefore(StandardFilter.MAIN_HANDLER.name(), entry.filterHandler, entry.name);
                    break;
            }
        }
        NamedElementChain<AsyncFilterHandler>.Node current = filterChainDefinition.getLast();
        AsyncServerFilterChainElement execChain = null;
        while (current != null) {
            execChain = new AsyncServerFilterChainElement(current.getValue(), execChain);
            current = current.getPrevious();
        }
        handlerFactory = new AsyncServerFilterChainExchangeHandlerFactory(execChain, exceptionCallback);
    } else {
        handlerFactory = new DefaultAsyncResponseExchangeHandlerFactory(registry, handler -> new BasicAsyncServerExpectationDecorator(handler, exceptionCallback));
    }
    final ServerH2StreamMultiplexerFactory http2StreamHandlerFactory = new ServerH2StreamMultiplexerFactory(httpProcessor != null ? httpProcessor : H2Processors.server(), handlerFactory, h2Config != null ? h2Config : H2Config.DEFAULT, charCodingConfig != null ? charCodingConfig : CharCodingConfig.DEFAULT, h2StreamListener);
    final TlsStrategy actualTlsStrategy = tlsStrategy != null ? tlsStrategy : new H2ServerTlsStrategy();
    final ServerHttp1StreamDuplexerFactory http1StreamHandlerFactory = new ServerHttp1StreamDuplexerFactory(httpProcessor != null ? httpProcessor : HttpProcessors.server(), handlerFactory, http1Config != null ? http1Config : Http1Config.DEFAULT, charCodingConfig != null ? charCodingConfig : CharCodingConfig.DEFAULT, DefaultConnectionReuseStrategy.INSTANCE, DefaultHttpRequestParserFactory.INSTANCE, DefaultHttpResponseWriterFactory.INSTANCE, DefaultContentLengthStrategy.INSTANCE, DefaultContentLengthStrategy.INSTANCE, http1StreamListener);
    final IOEventHandlerFactory ioEventHandlerFactory = new ServerHttpProtocolNegotiationStarter(http1StreamHandlerFactory, http2StreamHandlerFactory, versionPolicy != null ? versionPolicy : HttpVersionPolicy.NEGOTIATE, actualTlsStrategy, handshakeTimeout);
    return new HttpAsyncServer(ioEventHandlerFactory, ioReactorConfig, ioSessionDecorator, exceptionCallback, sessionListener, actualCanonicalHostName);
}

Example 5 with AsyncServerExchangeHandler

use of org.apache.hc.core5.http.nio.AsyncServerExchangeHandler in project httpcomponents-core by apache.

the class H2FullDuplexServerExample method main.

public static void main(final String[] args) throws Exception {
    int port = 8080;
    if (args.length >= 1) {
        port = Integer.parseInt(args[0]);
    }
    final IOReactorConfig config = IOReactorConfig.custom().setSoTimeout(15, TimeUnit.SECONDS).setTcpNoDelay(true).build();
    final H2Config h2Config = H2Config.custom().setPushEnabled(true).setMaxConcurrentStreams(100).build();
    final HttpAsyncServer server = H2ServerBootstrap.bootstrap().setIOReactorConfig(config).setH2Config(h2Config).setVersionPolicy(HttpVersionPolicy.FORCE_HTTP_2).setStreamListener(new H2StreamListener() {

        @Override
        public void onHeaderInput(final HttpConnection connection, final int streamId, final List<? extends Header> headers) {
            for (int i = 0; i < headers.size(); i++) {
                System.out.println(connection.getRemoteAddress() + " (" + streamId + ") << " + headers.get(i));
            }
        }

        @Override
        public void onHeaderOutput(final HttpConnection connection, final int streamId, final List<? extends Header> headers) {
            for (int i = 0; i < headers.size(); i++) {
                System.out.println(connection.getRemoteAddress() + " (" + streamId + ") >> " + headers.get(i));
            }
        }

        @Override
        public void onFrameInput(final HttpConnection connection, final int streamId, final RawFrame frame) {
        }

        @Override
        public void onFrameOutput(final HttpConnection connection, final int streamId, final RawFrame frame) {
        }

        @Override
        public void onInputFlowControl(final HttpConnection connection, final int streamId, final int delta, final int actualSize) {
        }

        @Override
        public void onOutputFlowControl(final HttpConnection connection, final int streamId, final int delta, final int actualSize) {
        }
    }).register("/echo", () -> new AsyncServerExchangeHandler() {

        ByteBuffer buffer = ByteBuffer.allocate(2048);

        CapacityChannel inputCapacityChannel;

        DataStreamChannel outputDataChannel;

        boolean endStream;

        private void ensureCapacity(final int chunk) {
            if (buffer.remaining() < chunk) {
                final ByteBuffer oldBuffer = buffer;
                oldBuffer.flip();
                buffer = ByteBuffer.allocate(oldBuffer.remaining() + (chunk > 2048 ? chunk : 2048));
                buffer.put(oldBuffer);
            }
        }

        @Override
        public void handleRequest(final HttpRequest request, final EntityDetails entityDetails, final ResponseChannel responseChannel, final HttpContext context) throws HttpException, IOException {
            final HttpResponse response = new BasicHttpResponse(HttpStatus.SC_OK);
            responseChannel.sendResponse(response, entityDetails, context);
        }

        @Override
        public void consume(final ByteBuffer src) throws IOException {
            if (buffer.position() == 0) {
                if (outputDataChannel != null) {
                    outputDataChannel.write(src);
                }
            }
            if (src.hasRemaining()) {
                ensureCapacity(src.remaining());
                buffer.put(src);
                if (outputDataChannel != null) {
                    outputDataChannel.requestOutput();
                }
            }
        }

        @Override
        public void updateCapacity(final CapacityChannel capacityChannel) throws IOException {
            if (buffer.hasRemaining()) {
                capacityChannel.update(buffer.remaining());
                inputCapacityChannel = null;
            } else {
                inputCapacityChannel = capacityChannel;
            }
        }

        @Override
        public void streamEnd(final List<? extends Header> trailers) throws IOException {
            endStream = true;
            if (buffer.position() == 0) {
                if (outputDataChannel != null) {
                    outputDataChannel.endStream();
                }
            } else {
                if (outputDataChannel != null) {
                    outputDataChannel.requestOutput();
                }
            }
        }

        @Override
        public int available() {
            return buffer.position();
        }

        @Override
        public void produce(final DataStreamChannel channel) throws IOException {
            outputDataChannel = channel;
            buffer.flip();
            if (buffer.hasRemaining()) {
                channel.write(buffer);
            }
            buffer.compact();
            if (buffer.position() == 0 && endStream) {
                channel.endStream();
            }
            final CapacityChannel capacityChannel = inputCapacityChannel;
            if (capacityChannel != null && buffer.hasRemaining()) {
                capacityChannel.update(buffer.remaining());
            }
        }

        @Override
        public void failed(final Exception cause) {
            if (!(cause instanceof SocketException)) {
                cause.printStackTrace(System.out);
            }
        }

        @Override
        public void releaseResources() {
        }
    }).create();
    Runtime.getRuntime().addShutdownHook(new Thread(() -> {
        System.out.println("HTTP server shutting down");
        server.close(CloseMode.GRACEFUL);
    }));
    server.start();
    final Future<ListenerEndpoint> future = server.listen(new InetSocketAddress(port), URIScheme.HTTP);
    final ListenerEndpoint listenerEndpoint = future.get();
    System.out.print("Listening on " + listenerEndpoint.getAddress());
    server.awaitShutdown(TimeValue.ofDays(Long.MAX_VALUE));
}