diff -r d40cc68d31b4 -r 4cc44dd9f14f jdk/test/java/net/httpclient/websocket/DummyWebSocketServer.java --- /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> 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 strings = asList(request.toString().split("\r\n")); + List 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 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> defaultMapping() { + return request -> { + List response = new LinkedList<>(); + Iterator 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 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 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) { } + } + } +}