/*
* ====================================================================
* 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.http.examples.nio;
import java.io.File;
import java.io.IOException;
import java.io.InterruptedIOException;
import java.net.InetSocketAddress;
import java.net.URL;
import java.net.URLDecoder;
import java.security.KeyStore;
import java.util.Locale;
import javax.net.ssl.KeyManager;
import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;
import org.apache.http.HttpException;
import org.apache.http.HttpRequest;
import org.apache.http.HttpResponse;
import org.apache.http.HttpResponseInterceptor;
import org.apache.http.HttpStatus;
import org.apache.http.MethodNotSupportedException;
import org.apache.http.entity.ContentType;
import org.apache.http.impl.DefaultConnectionReuseStrategy;
import org.apache.http.impl.nio.DefaultNHttpServerConnection;
import org.apache.http.impl.nio.DefaultNHttpServerConnectionFactory;
import org.apache.http.impl.nio.DefaultHttpServerIODispatch;
import org.apache.http.impl.nio.SSLNHttpServerConnectionFactory;
import org.apache.http.impl.nio.reactor.DefaultListeningIOReactor;
import org.apache.http.nio.NHttpConnection;
import org.apache.http.nio.NHttpConnectionFactory;
import org.apache.http.nio.NHttpServerConnection;
import org.apache.http.nio.entity.NFileEntity;
import org.apache.http.nio.entity.NStringEntity;
import org.apache.http.nio.protocol.BasicAsyncRequestConsumer;
import org.apache.http.nio.protocol.BasicAsyncResponseProducer;
import org.apache.http.nio.protocol.HttpAsyncRequestConsumer;
import org.apache.http.nio.protocol.HttpAsyncRequestHandler;
import org.apache.http.nio.protocol.HttpAsyncRequestHandlerRegistry;
import org.apache.http.nio.protocol.HttpAsyncExchange;
import org.apache.http.nio.protocol.HttpAsyncService;
import org.apache.http.nio.reactor.IOEventDispatch;
import org.apache.http.nio.reactor.ListeningIOReactor;
import org.apache.http.params.CoreConnectionPNames;
import org.apache.http.params.CoreProtocolPNames;
import org.apache.http.params.HttpParams;
import org.apache.http.params.SyncBasicHttpParams;
import org.apache.http.protocol.ExecutionContext;
import org.apache.http.protocol.HttpContext;
import org.apache.http.protocol.HttpProcessor;
import org.apache.http.protocol.ImmutableHttpProcessor;
import org.apache.http.protocol.ResponseConnControl;
import org.apache.http.protocol.ResponseContent;
import org.apache.http.protocol.ResponseDate;
import org.apache.http.protocol.ResponseServer;
/**
* HTTP/1.1 file server based on the non-blocking I/O model and capable of direct channel
* (zero copy) data transfer.
*/
public class NHttpServer {
public static void main(String[] args) throws Exception {
if (args.length < 1) {
System.err.println("Please specify document root directory");
System.exit(1);
}
// Document root directory
File docRoot = new File(args[0]);
int port = 8080;
if (args.length >= 2) {
port = Integer.parseInt(args[1]);
}
// HTTP parameters for the server
HttpParams params = new SyncBasicHttpParams();
params
.setIntParameter(CoreConnectionPNames.SO_TIMEOUT, 5000)
.setIntParameter(CoreConnectionPNames.SOCKET_BUFFER_SIZE, 8 * 1024)
.setBooleanParameter(CoreConnectionPNames.TCP_NODELAY, true)
.setParameter(CoreProtocolPNames.ORIGIN_SERVER, "HttpTest/1.1");
// Create HTTP protocol processing chain
HttpProcessor httpproc = new ImmutableHttpProcessor(new HttpResponseInterceptor[] {
// Use standard server-side protocol interceptors
new ResponseDate(),
new ResponseServer(),
new ResponseContent(),
new ResponseConnControl()
});
// Create request handler registry
HttpAsyncRequestHandlerRegistry reqistry = new HttpAsyncRequestHandlerRegistry();
// Register the default handler for all URIs
reqistry.register("*", new HttpFileHandler(docRoot));
// Create server-side HTTP protocol handler
HttpAsyncService protocolHandler = new HttpAsyncService(
httpproc, new DefaultConnectionReuseStrategy(), reqistry, params) {
@Override
public void connected(final NHttpServerConnection conn) {
System.out.println(conn + ": connection open");
super.connected(conn);
}
@Override
public void closed(final NHttpServerConnection conn) {
System.out.println(conn + ": connection closed");
super.closed(conn);
}
};
// Create HTTP connection factory
NHttpConnectionFactory<DefaultNHttpServerConnection> connFactory;
if (port == 8443) {
// Initialize SSL context
ClassLoader cl = NHttpServer.class.getClassLoader();
URL url = cl.getResource("my.keystore");
if (url == null) {
System.out.println("Keystore not found");
System.exit(1);
}
KeyStore keystore = KeyStore.getInstance("jks");
keystore.load(url.openStream(), "secret".toCharArray());
KeyManagerFactory kmfactory = KeyManagerFactory.getInstance(
KeyManagerFactory.getDefaultAlgorithm());
kmfactory.init(keystore, "secret".toCharArray());
KeyManager[] keymanagers = kmfactory.getKeyManagers();
SSLContext sslcontext = SSLContext.getInstance("TLS");
sslcontext.init(keymanagers, null, null);
connFactory = new SSLNHttpServerConnectionFactory(sslcontext, null, params);
} else {
connFactory = new DefaultNHttpServerConnectionFactory(params);
}
// Create server-side I/O event dispatch
IOEventDispatch ioEventDispatch = new DefaultHttpServerIODispatch(protocolHandler, connFactory);
// Create server-side I/O reactor
ListeningIOReactor ioReactor = new DefaultListeningIOReactor();
try {
// Listen of the given port
ioReactor.listen(new InetSocketAddress(port));
// Ready to go!
ioReactor.execute(ioEventDispatch);
} catch (InterruptedIOException ex) {
System.err.println("Interrupted");
} catch (IOException e) {
System.err.println("I/O error: " + e.getMessage());
}
System.out.println("Shutdown");
}
static class HttpFileHandler implements HttpAsyncRequestHandler<HttpRequest> {
private final File docRoot;
public HttpFileHandler(final File docRoot) {
super();
this.docRoot = docRoot;
}
public HttpAsyncRequestConsumer<HttpRequest> processRequest(
final HttpRequest request,
final HttpContext context) {
// Buffer request content in memory for simplicity
return new BasicAsyncRequestConsumer();
}
public void handle(
final HttpRequest request,
final HttpAsyncExchange httpexchange,
final HttpContext context) throws HttpException, IOException {
HttpResponse response = httpexchange.getResponse();
handleInternal(request, response, context);
httpexchange.submitResponse(new BasicAsyncResponseProducer(response));
}
private void handleInternal(
final HttpRequest request,
final HttpResponse response,
final HttpContext context) throws HttpException, IOException {
String method = request.getRequestLine().getMethod().toUpperCase(Locale.ENGLISH);
if (!method.equals("GET") && !method.equals("HEAD") && !method.equals("POST")) {
throw new MethodNotSupportedException(method + " method not supported");
}
String target = request.getRequestLine().getUri();
final File file = new File(this.docRoot, URLDecoder.decode(target, "UTF-8"));
if (!file.exists()) {
response.setStatusCode(HttpStatus.SC_NOT_FOUND);
NStringEntity entity = new NStringEntity(
"<html><body><h1>File" + file.getPath() +
" not found</h1></body></html>",
ContentType.create("text/html", "UTF-8"));
response.setEntity(entity);
System.out.println("File " + file.getPath() + " not found");
} else if (!file.canRead() || file.isDirectory()) {
response.setStatusCode(HttpStatus.SC_FORBIDDEN);
NStringEntity entity = new NStringEntity(
"<html><body><h1>Access denied</h1></body></html>",
ContentType.create("text/html", "UTF-8"));
response.setEntity(entity);
System.out.println("Cannot read file " + file.getPath());
} else {
NHttpConnection conn = (NHttpConnection) context.getAttribute(
ExecutionContext.HTTP_CONNECTION);
response.setStatusCode(HttpStatus.SC_OK);
NFileEntity body = new NFileEntity(file, ContentType.create("text/html", null));
response.setEntity(body);
System.out.println(conn + ": serving file " + file.getPath());
}
}
}
}