| /* |
| * ==================================================================== |
| * 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.core5.http.examples; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.net.InetSocketAddress; |
| import java.net.URI; |
| import java.net.URISyntaxException; |
| import java.util.Locale; |
| import java.util.concurrent.Future; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.apache.hc.core5.http.ContentType; |
| import org.apache.hc.core5.http.EndpointDetails; |
| import org.apache.hc.core5.http.EntityDetails; |
| import org.apache.hc.core5.http.HttpException; |
| import org.apache.hc.core5.http.HttpRequest; |
| import org.apache.hc.core5.http.HttpStatus; |
| import org.apache.hc.core5.http.Message; |
| import org.apache.hc.core5.http.ProtocolException; |
| import org.apache.hc.core5.http.URIScheme; |
| import org.apache.hc.core5.http.impl.bootstrap.AsyncServerBootstrap; |
| import org.apache.hc.core5.http.impl.bootstrap.HttpAsyncServer; |
| import org.apache.hc.core5.http.nio.AsyncRequestConsumer; |
| import org.apache.hc.core5.http.nio.AsyncServerRequestHandler; |
| import org.apache.hc.core5.http.nio.entity.AsyncEntityProducers; |
| import org.apache.hc.core5.http.nio.entity.NoopEntityConsumer; |
| import org.apache.hc.core5.http.nio.support.AsyncResponseBuilder; |
| import org.apache.hc.core5.http.nio.support.BasicRequestConsumer; |
| import org.apache.hc.core5.http.protocol.HttpContext; |
| import org.apache.hc.core5.http.protocol.HttpCoreContext; |
| import org.apache.hc.core5.http.protocol.HttpDateGenerator; |
| import org.apache.hc.core5.io.CloseMode; |
| import org.apache.hc.core5.reactor.IOReactorConfig; |
| import org.apache.hc.core5.reactor.ListenerEndpoint; |
| import org.apache.hc.core5.util.TimeValue; |
| |
| /** |
| * Example of asynchronous embedded HTTP/1.1 file server. |
| */ |
| public class AsyncFileServerExample { |
| |
| /** |
| * Example command line args: {@code "c:\temp" 8080} |
| */ |
| public static void main(final String[] args) throws Exception { |
| if (args.length < 1) { |
| System.err.println("Please specify document root directory"); |
| System.exit(1); |
| } |
| // Document root directory |
| final File docRoot = new File(args[0]); |
| int port = 8080; |
| if (args.length >= 2) { |
| port = Integer.parseInt(args[1]); |
| } |
| |
| final IOReactorConfig config = IOReactorConfig.custom() |
| .setSoTimeout(15, TimeUnit.SECONDS) |
| .setTcpNoDelay(true) |
| .build(); |
| |
| final HttpAsyncServer server = AsyncServerBootstrap.bootstrap() |
| .setIOReactorConfig(config) |
| .register("*", new AsyncServerRequestHandler<Message<HttpRequest, Void>>() { |
| |
| @Override |
| public AsyncRequestConsumer<Message<HttpRequest, Void>> prepare( |
| final HttpRequest request, |
| final EntityDetails entityDetails, |
| final HttpContext context) throws HttpException { |
| return new BasicRequestConsumer<>(entityDetails != null ? new NoopEntityConsumer() : null); |
| } |
| |
| @Override |
| public void handle( |
| final Message<HttpRequest, Void> message, |
| final ResponseTrigger responseTrigger, |
| final HttpContext context) throws HttpException, IOException { |
| final HttpRequest request = message.getHead(); |
| final URI requestUri; |
| try { |
| requestUri = request.getUri(); |
| } catch (final URISyntaxException ex) { |
| throw new ProtocolException(ex.getMessage(), ex); |
| } |
| final String path = requestUri.getPath(); |
| final File file = new File(docRoot, path); |
| if (!file.exists()) { |
| |
| final String msg = "File " + file.getPath() + " not found"; |
| println(msg); |
| responseTrigger.submitResponse( |
| AsyncResponseBuilder.create(HttpStatus.SC_NOT_FOUND) |
| .setEntity("<html><body><h1>" + msg + "</h1></body></html>", ContentType.TEXT_HTML) |
| .build(), |
| context); |
| |
| } else if (!file.canRead() || file.isDirectory()) { |
| |
| final String msg = "Cannot read file " + file.getPath(); |
| println(msg); |
| responseTrigger.submitResponse(AsyncResponseBuilder.create(HttpStatus.SC_FORBIDDEN) |
| .setEntity("<html><body><h1>" + msg + "</h1></body></html>", ContentType.TEXT_HTML) |
| .build(), |
| context); |
| |
| } else { |
| |
| final ContentType contentType; |
| final String filename = file.getName().toLowerCase(Locale.ROOT); |
| if (filename.endsWith(".txt")) { |
| contentType = ContentType.TEXT_PLAIN; |
| } else if (filename.endsWith(".html") || filename.endsWith(".htm")) { |
| contentType = ContentType.TEXT_HTML; |
| } else if (filename.endsWith(".xml")) { |
| contentType = ContentType.TEXT_XML; |
| } else { |
| contentType = ContentType.DEFAULT_BINARY; |
| } |
| |
| final HttpCoreContext coreContext = HttpCoreContext.adapt(context); |
| final EndpointDetails endpoint = coreContext.getEndpointDetails(); |
| |
| println(endpoint + " | serving file " + file.getPath()); |
| |
| responseTrigger.submitResponse( |
| AsyncResponseBuilder.create(HttpStatus.SC_OK) |
| .setEntity(AsyncEntityProducers.create(file, contentType)) |
| .build(), |
| context); |
| } |
| } |
| |
| }) |
| .create(); |
| |
| Runtime.getRuntime().addShutdownHook(new Thread() { |
| @Override |
| public void run() { |
| 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(); |
| println("Listening on " + listenerEndpoint.getAddress()); |
| server.awaitShutdown(TimeValue.MAX_VALUE); |
| } |
| |
| static final void println(final String msg) { |
| System.out.println(HttpDateGenerator.INSTANCE.getCurrentDate() + " | " + msg); |
| } |
| |
| } |