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/*
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* Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import com.sun.net.httpserver.HttpContext;
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import com.sun.net.httpserver.HttpExchange;
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import com.sun.net.httpserver.HttpHandler;
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import com.sun.net.httpserver.HttpServer;
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import com.sun.net.httpserver.HttpsConfigurator;
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import com.sun.net.httpserver.HttpsParameters;
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import com.sun.net.httpserver.HttpsServer;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.io.OutputStreamWriter;
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import java.io.PrintWriter;
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import java.io.Writer;
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import java.net.HttpURLConnection;
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import java.net.InetAddress;
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import java.net.InetSocketAddress;
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import java.net.Proxy;
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import java.net.ProxySelector;
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import java.net.ServerSocket;
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import java.net.Socket;
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import java.net.URI;
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import java.net.URISyntaxException;
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import java.nio.charset.StandardCharsets;
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import java.security.NoSuchAlgorithmException;
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import javax.net.ssl.HostnameVerifier;
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import javax.net.ssl.HttpsURLConnection;
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import javax.net.ssl.SSLContext;
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import javax.net.ssl.SSLSession;
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import jdk.incubator.http.HttpClient;
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import jdk.incubator.http.HttpRequest;
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import jdk.incubator.http.HttpResponse;
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import jdk.testlibrary.SimpleSSLContext;
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import java.util.concurrent.*;
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/**
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* @test
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* @bug 8181422
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* @summary Verifies that you can access an HTTP/2 server over HTTPS by
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* tunnelling through an HTTP/1.1 proxy.
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* @modules jdk.incubator.httpclient
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* @library /lib/testlibrary server
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48083
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* @modules java.base/sun.net.www.http
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* jdk.incubator.httpclient/jdk.incubator.http.internal.common
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* jdk.incubator.httpclient/jdk.incubator.http.internal.frame
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* jdk.incubator.httpclient/jdk.incubator.http.internal.hpack
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* @build jdk.testlibrary.SimpleSSLContext ProxyTest2
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* @run main/othervm ProxyTest2
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* @author danielfuchs
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*/
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public class ProxyTest2 {
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static {
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try {
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HttpsURLConnection.setDefaultHostnameVerifier(new HostnameVerifier() {
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public boolean verify(String hostname, SSLSession session) {
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return true;
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}
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});
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SSLContext.setDefault(new SimpleSSLContext().get());
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} catch (IOException ex) {
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throw new ExceptionInInitializerError(ex);
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}
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}
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static final String RESPONSE = "<html><body><p>Hello World!</body></html>";
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static final String PATH = "/foo/";
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static Http2TestServer createHttpsServer(ExecutorService exec) throws Exception {
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Http2TestServer server = new Http2TestServer(true, 0, exec, SSLContext.getDefault());
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server.addHandler(new Http2Handler() {
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@Override
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public void handle(Http2TestExchange he) throws IOException {
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he.getResponseHeaders().addHeader("encoding", "UTF-8");
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he.sendResponseHeaders(200, RESPONSE.length());
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he.getResponseBody().write(RESPONSE.getBytes(StandardCharsets.UTF_8));
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he.close();
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}
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}, PATH);
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return server;
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}
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public static void main(String[] args)
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throws Exception
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{
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ExecutorService exec = Executors.newCachedThreadPool();
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Http2TestServer server = createHttpsServer(exec);
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server.start();
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try {
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// Http2TestServer over HTTPS does not support HTTP/1.1
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// => only test with a HTTP/2 client
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test(server, HttpClient.Version.HTTP_2);
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} finally {
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server.stop();
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exec.shutdown();
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System.out.println("Server stopped");
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}
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}
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public static void test(Http2TestServer server, HttpClient.Version version)
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throws Exception
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{
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System.out.println("Server is: " + server.getAddress().toString());
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URI uri = new URI("https://localhost:" + server.getAddress().getPort() + PATH + "x");
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TunnelingProxy proxy = new TunnelingProxy(server);
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proxy.start();
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try {
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System.out.println("Proxy started");
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Proxy p = new Proxy(Proxy.Type.HTTP,
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InetSocketAddress.createUnresolved("localhost", proxy.getAddress().getPort()));
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System.out.println("Setting up request with HttpClient for version: "
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+ version.name() + "URI=" + uri);
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ProxySelector ps = ProxySelector.of(
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InetSocketAddress.createUnresolved("localhost", proxy.getAddress().getPort()));
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HttpClient client = HttpClient.newBuilder()
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.version(version)
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.proxy(ps)
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.build();
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HttpRequest request = HttpRequest.newBuilder()
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.uri(uri)
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.GET()
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.build();
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System.out.println("Sending request with HttpClient");
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HttpResponse<String> response
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= client.send(request, HttpResponse.BodyHandler.asString());
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System.out.println("Got response");
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String resp = response.body();
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System.out.println("Received: " + resp);
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if (!RESPONSE.equals(resp)) {
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throw new AssertionError("Unexpected response");
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}
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} finally {
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System.out.println("Stopping proxy");
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proxy.stop();
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System.out.println("Proxy stopped");
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}
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}
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static class TunnelingProxy {
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final Thread accept;
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final ServerSocket ss;
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final boolean DEBUG = false;
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final Http2TestServer serverImpl;
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TunnelingProxy(Http2TestServer serverImpl) throws IOException {
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this.serverImpl = serverImpl;
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ss = new ServerSocket();
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accept = new Thread(this::accept);
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}
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void start() throws IOException {
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ss.bind(new InetSocketAddress(InetAddress.getLoopbackAddress(), 0));
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accept.start();
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}
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// Pipe the input stream to the output stream.
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private synchronized Thread pipe(InputStream is, OutputStream os, char tag) {
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return new Thread("TunnelPipe("+tag+")") {
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@Override
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public void run() {
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try {
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try {
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int c;
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while ((c = is.read()) != -1) {
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os.write(c);
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os.flush();
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// if DEBUG prints a + or a - for each transferred
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// character.
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if (DEBUG) System.out.print(tag);
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}
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is.close();
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} finally {
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os.close();
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}
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} catch (IOException ex) {
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if (DEBUG) ex.printStackTrace(System.out);
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}
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}
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};
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}
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public InetSocketAddress getAddress() {
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return new InetSocketAddress(ss.getInetAddress(), ss.getLocalPort());
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}
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// This is a bit shaky. It doesn't handle continuation
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// lines, but our client shouldn't send any.
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// Read a line from the input stream, swallowing the final
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// \r\n sequence. Stops at the first \n, doesn't complain
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// if it wasn't preceded by '\r'.
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//
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String readLine(InputStream r) throws IOException {
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StringBuilder b = new StringBuilder();
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int c;
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while ((c = r.read()) != -1) {
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if (c == '\n') break;
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b.appendCodePoint(c);
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}
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if (b.codePointAt(b.length() -1) == '\r') {
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b.delete(b.length() -1, b.length());
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}
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return b.toString();
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}
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public void accept() {
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Socket clientConnection = null;
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try {
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while (true) {
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System.out.println("Tunnel: Waiting for client");
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Socket previous = clientConnection;
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try {
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clientConnection = ss.accept();
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} catch (IOException io) {
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if (DEBUG) io.printStackTrace(System.out);
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break;
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} finally {
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// we have only 1 client at a time, so it is safe
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// to close the previous connection here
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if (previous != null) previous.close();
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}
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System.out.println("Tunnel: Client accepted");
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Socket targetConnection = null;
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InputStream ccis = clientConnection.getInputStream();
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OutputStream ccos = clientConnection.getOutputStream();
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Writer w = new OutputStreamWriter(ccos, "UTF-8");
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PrintWriter pw = new PrintWriter(w);
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System.out.println("Tunnel: Reading request line");
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String requestLine = readLine(ccis);
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System.out.println("Tunnel: Request status line: " + requestLine);
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if (requestLine.startsWith("CONNECT ")) {
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// We should probably check that the next word following
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// CONNECT is the host:port of our HTTPS serverImpl.
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// Some improvement for a followup!
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// Read all headers until we find the empty line that
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// signals the end of all headers.
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while(!requestLine.equals("")) {
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System.out.println("Tunnel: Reading header: "
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+ (requestLine = readLine(ccis)));
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}
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// Open target connection
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targetConnection = new Socket(
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serverImpl.getAddress().getAddress(),
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serverImpl.getAddress().getPort());
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// Then send the 200 OK response to the client
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System.out.println("Tunnel: Sending "
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+ "HTTP/1.1 200 OK\r\n\r\n");
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pw.print("HTTP/1.1 200 OK\r\nContent-Length: 0\r\n\r\n");
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pw.flush();
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} else {
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// This should not happen.
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throw new IOException("Tunnel: Unexpected status line: "
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+ requestLine);
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}
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// Pipe the input stream of the client connection to the
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// output stream of the target connection and conversely.
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// Now the client and target will just talk to each other.
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System.out.println("Tunnel: Starting tunnel pipes");
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Thread t1 = pipe(ccis, targetConnection.getOutputStream(), '+');
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Thread t2 = pipe(targetConnection.getInputStream(), ccos, '-');
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t1.start();
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t2.start();
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// We have only 1 client... wait until it has finished before
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// accepting a new connection request.
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// System.out.println("Tunnel: Waiting for pipes to close");
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t1.join();
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t2.join();
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System.out.println("Tunnel: Done - waiting for next client");
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}
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} catch (Throwable ex) {
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try {
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ss.close();
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} catch (IOException ex1) {
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ex.addSuppressed(ex1);
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}
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ex.printStackTrace(System.err);
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}
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}
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void stop() throws IOException {
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ss.close();
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}
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}
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static class Configurator extends HttpsConfigurator {
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public Configurator(SSLContext ctx) {
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super(ctx);
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}
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@Override
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public void configure (HttpsParameters params) {
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params.setSSLParameters (getSSLContext().getSupportedSSLParameters());
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}
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}
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}
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