--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/net/httpclient/websocket/DummyWebSocketServer.java Fri Feb 24 17:05:00 2017 +0000
@@ -0,0 +1,278 @@
+/*
+ * Copyright (c) 2016, 2017, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import java.io.Closeable;
+import java.io.IOException;
+import java.io.UncheckedIOException;
+import java.net.InetSocketAddress;
+import java.net.URI;
+import java.nio.ByteBuffer;
+import java.nio.CharBuffer;
+import java.nio.channels.ClosedByInterruptException;
+import java.nio.channels.ServerSocketChannel;
+import java.nio.channels.SocketChannel;
+import java.nio.charset.CharacterCodingException;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.Arrays;
+import java.util.Base64;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.function.Function;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+
+import static java.lang.String.format;
+import static java.lang.System.Logger.Level.ERROR;
+import static java.lang.System.Logger.Level.INFO;
+import static java.lang.System.Logger.Level.TRACE;
+import static java.nio.charset.StandardCharsets.ISO_8859_1;
+import static java.util.Arrays.asList;
+import static java.util.Objects.requireNonNull;
+
+/**
+ * Dummy WebSocket Server.
+ *
+ * Performs simpler version of the WebSocket Opening Handshake over HTTP (i.e.
+ * no proxying, cookies, etc.) Supports sequential connections, one at a time,
+ * i.e. in order for a client to connect to the server the previous client must
+ * disconnect first.
+ *
+ * Expected client request:
+ *
+ * GET /chat HTTP/1.1
+ * Host: server.example.com
+ * Upgrade: websocket
+ * Connection: Upgrade
+ * Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==
+ * Origin: http://example.com
+ * Sec-WebSocket-Protocol: chat, superchat
+ * Sec-WebSocket-Version: 13
+ *
+ * This server response:
+ *
+ * HTTP/1.1 101 Switching Protocols
+ * Upgrade: websocket
+ * Connection: Upgrade
+ * Sec-WebSocket-Accept: s3pPLMBiTxaQ9kYGzzhZRbK+xOo=
+ * Sec-WebSocket-Protocol: chat
+ */
+public final class DummyWebSocketServer implements Closeable {
+
+ private final static System.Logger log = System.getLogger(DummyWebSocketServer.class.getName());
+ private final AtomicBoolean started = new AtomicBoolean();
+ private final Thread thread;
+ private volatile ServerSocketChannel ssc;
+ private volatile InetSocketAddress address;
+
+ public DummyWebSocketServer() {
+ this(defaultMapping());
+ }
+
+ public DummyWebSocketServer(Function<List<String>, List<String>> mapping) {
+ requireNonNull(mapping);
+ thread = new Thread(() -> {
+ try {
+ while (!Thread.currentThread().isInterrupted()) {
+ log.log(INFO, "Accepting next connection at: " + ssc);
+ SocketChannel channel = ssc.accept();
+ log.log(INFO, "Accepted: " + channel);
+ try {
+ channel.configureBlocking(true);
+ StringBuilder request = new StringBuilder();
+ if (!readRequest(channel, request)) {
+ throw new IOException("Bad request");
+ }
+ List<String> strings = asList(request.toString().split("\r\n"));
+ List<String> response = mapping.apply(strings);
+ writeResponse(channel, response);
+ // Read until the thread is interrupted or an error occurred
+ // or the input is shutdown
+ ByteBuffer b = ByteBuffer.allocate(1024);
+ while (channel.read(b) != -1) {
+ b.clear();
+ }
+ } catch (IOException e) {
+ log.log(TRACE, () -> "Error in connection: " + channel, e);
+ } finally {
+ log.log(INFO, "Closed: " + channel);
+ close(channel);
+ }
+ }
+ } catch (ClosedByInterruptException ignored) {
+ } catch (IOException e) {
+ log.log(ERROR, e);
+ } finally {
+ close(ssc);
+ log.log(INFO, "Stopped at: " + getURI());
+ }
+ });
+ thread.setName("DummyWebSocketServer");
+ thread.setDaemon(false);
+ }
+
+ public void open() throws IOException {
+ log.log(INFO, "Starting");
+ if (!started.compareAndSet(false, true)) {
+ throw new IllegalStateException("Already started");
+ }
+ ssc = ServerSocketChannel.open();
+ try {
+ ssc.configureBlocking(true);
+ ssc.bind(new InetSocketAddress("localhost", 0));
+ address = (InetSocketAddress) ssc.getLocalAddress();
+ thread.start();
+ } catch (IOException e) {
+ close(ssc);
+ }
+ log.log(INFO, "Started at: " + getURI());
+ }
+
+ @Override
+ public void close() {
+ log.log(INFO, "Stopping: " + getURI());
+ thread.interrupt();
+ }
+
+ URI getURI() {
+ if (!started.get()) {
+ throw new IllegalStateException("Not yet started");
+ }
+ return URI.create("ws://" + address.getHostName() + ":" + address.getPort());
+ }
+
+ private boolean readRequest(SocketChannel channel, StringBuilder request)
+ throws IOException
+ {
+ ByteBuffer buffer = ByteBuffer.allocate(512);
+ int num = channel.read(buffer);
+ if (num == -1) {
+ return false;
+ }
+ CharBuffer decoded;
+ buffer.flip();
+ try {
+ decoded = ISO_8859_1.newDecoder().decode(buffer);
+ } catch (CharacterCodingException e) {
+ throw new UncheckedIOException(e);
+ }
+ request.append(decoded);
+ return Pattern.compile("\r\n\r\n").matcher(request).find();
+ }
+
+ private void writeResponse(SocketChannel channel, List<String> response)
+ throws IOException
+ {
+ String s = response.stream().collect(Collectors.joining("\r\n"))
+ + "\r\n\r\n";
+ ByteBuffer encoded;
+ try {
+ encoded = ISO_8859_1.newEncoder().encode(CharBuffer.wrap(s));
+ } catch (CharacterCodingException e) {
+ throw new UncheckedIOException(e);
+ }
+ while (encoded.hasRemaining()) {
+ channel.write(encoded);
+ }
+ }
+
+ private static Function<List<String>, List<String>> defaultMapping() {
+ return request -> {
+ List<String> response = new LinkedList<>();
+ Iterator<String> iterator = request.iterator();
+ if (!iterator.hasNext()) {
+ throw new IllegalStateException("The request is empty");
+ }
+ if (!"GET / HTTP/1.1".equals(iterator.next())) {
+ throw new IllegalStateException
+ ("Unexpected status line: " + request.get(0));
+ }
+ response.add("HTTP/1.1 101 Switching Protocols");
+ Map<String, String> requestHeaders = new HashMap<>();
+ while (iterator.hasNext()) {
+ String header = iterator.next();
+ String[] split = header.split(": ");
+ if (split.length != 2) {
+ throw new IllegalStateException
+ ("Unexpected header: " + header
+ + ", split=" + Arrays.toString(split));
+ }
+ if (requestHeaders.put(split[0], split[1]) != null) {
+ throw new IllegalStateException
+ ("Duplicating headers: " + Arrays.toString(split));
+ }
+ }
+ if (requestHeaders.containsKey("Sec-WebSocket-Protocol")) {
+ throw new IllegalStateException("Subprotocols are not expected");
+ }
+ if (requestHeaders.containsKey("Sec-WebSocket-Extensions")) {
+ throw new IllegalStateException("Extensions are not expected");
+ }
+ expectHeader(requestHeaders, "Connection", "Upgrade");
+ response.add("Connection: Upgrade");
+ expectHeader(requestHeaders, "Upgrade", "websocket");
+ response.add("Upgrade: websocket");
+ expectHeader(requestHeaders, "Sec-WebSocket-Version", "13");
+ String key = requestHeaders.get("Sec-WebSocket-Key");
+ if (key == null) {
+ throw new IllegalStateException("Sec-WebSocket-Key is missing");
+ }
+ MessageDigest sha1 = null;
+ try {
+ sha1 = MessageDigest.getInstance("SHA-1");
+ } catch (NoSuchAlgorithmException e) {
+ throw new InternalError(e);
+ }
+ String x = key + "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
+ sha1.update(x.getBytes(ISO_8859_1));
+ String v = Base64.getEncoder().encodeToString(sha1.digest());
+ response.add("Sec-WebSocket-Accept: " + v);
+ return response;
+ };
+ }
+
+ protected static String expectHeader(Map<String, String> headers,
+ String name,
+ String value) {
+ String v = headers.get(name);
+ if (!value.equals(v)) {
+ throw new IllegalStateException(
+ format("Expected '%s: %s', actual: '%s: %s'",
+ name, value, name, v)
+ );
+ }
+ return v;
+ }
+
+ private static void close(AutoCloseable... acs) {
+ for (AutoCloseable ac : acs) {
+ try {
+ ac.close();
+ } catch (Exception ignored) { }
+ }
+ }
+}