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https://github.com/openjdk/jdk.git
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8268294: Reusing HttpClient in a WebSocket.Listener hangs.
Reviewed-by: dfuchs
This commit is contained in:
Michael McMahon
parent
e84461072a
commit
2d088fa91d
@ -49,7 +49,7 @@ import jdk.internal.net.http.common.OperationTrackers.Tracker;
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* An HttpClientFacade is a simple class that wraps an HttpClient implementation
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* and delegates everything to its implementation delegate.
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*/
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final class HttpClientFacade extends HttpClient implements Trackable {
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public final class HttpClientFacade extends HttpClient implements Trackable {
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final HttpClientImpl impl;
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@ -110,6 +110,10 @@ final class HttpClientFacade extends HttpClient implements Trackable {
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return impl.executor();
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}
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public Executor theExecutor() {
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return impl.theExecutor();
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}
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@Override
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public <T> HttpResponse<T>
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send(HttpRequest req, HttpResponse.BodyHandler<T> responseBodyHandler)
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@ -60,9 +60,16 @@ class MessageDecoder implements Frame.Consumer {
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private long payloadLen;
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private long unconsumedPayloadLen;
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private ByteBuffer binaryData;
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private final boolean server;
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private int maskingKey;
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MessageDecoder(MessageStreamConsumer output) {
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this(output, false);
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}
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MessageDecoder(MessageStreamConsumer output, boolean server) {
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this.output = requireNonNull(output);
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this.server = server;
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}
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/* Exposed for testing purposes */
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@ -143,9 +150,12 @@ class MessageDecoder implements Frame.Consumer {
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if (debug.on()) {
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debug.log("mask %s", value);
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}
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if (value) {
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if (value && !server) {
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throw new FailWebSocketException("Masked frame received");
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}
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if (!value && server) {
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throw new FailWebSocketException("Masked frame expected");
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}
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}
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@Override
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@ -175,7 +185,9 @@ class MessageDecoder implements Frame.Consumer {
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// So this method (`maskingKey`) is not supposed to be invoked while
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// reading a frame that has came from the server. If this method is
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// invoked, then it's an error in implementation, thus InternalError
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throw new InternalError();
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if (!server)
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throw new InternalError();
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maskingKey = value;
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}
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@Override
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@ -204,10 +216,17 @@ class MessageDecoder implements Frame.Consumer {
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boolean last = fin && lastPayloadChunk;
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boolean text = opcode == Opcode.TEXT || originatingOpcode == Opcode.TEXT;
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if (!text) {
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output.onBinary(data.slice(), last);
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ByteBuffer slice = data.slice();
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if (server) {
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unMask(slice);
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}
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output.onBinary(slice, last);
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data.position(data.limit()); // Consume
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} else {
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boolean binaryNonEmpty = data.hasRemaining();
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if (server) {
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unMask(data);
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}
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CharBuffer textData;
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try {
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textData = decoder.decode(data, last);
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@ -225,6 +244,17 @@ class MessageDecoder implements Frame.Consumer {
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}
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}
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private void unMask(ByteBuffer src) {
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int pos = src.position();
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int size = src.remaining();
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ByteBuffer temp = ByteBuffer.allocate(size);
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Frame.Masker.transferMasking(src, temp, maskingKey);
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temp.flip();
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src.position(pos);
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src.put(temp);
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src.position(pos).limit(pos+size);
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}
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@Override
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public void endFrame() {
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if (debug.on()) {
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@ -81,6 +81,15 @@ public class MessageEncoder {
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/* Was the previous frame TEXT or a CONTINUATION thereof? */
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private boolean previousText;
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private boolean closed;
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private final boolean server;
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MessageEncoder() {
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this(false);
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}
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MessageEncoder(boolean isServer) {
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this.server = isServer;
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}
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/*
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* How many bytes of the current message have been already encoded.
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@ -369,12 +378,20 @@ public class MessageEncoder {
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opcode, fin, payloadLen);
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}
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headerBuffer.clear();
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int mask = maskingKeySource.nextInt();
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headerWriter.fin(fin)
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// for server setting mask to 0 disables masking (xor)
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int mask = this.server ? 0 : maskingKeySource.nextInt();
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if (mask == 0) {
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headerWriter.fin(fin)
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.opcode(opcode)
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.payloadLen(payloadLen)
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.write(headerBuffer);
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} else {
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headerWriter.fin(fin)
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.opcode(opcode)
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.payloadLen(payloadLen)
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.mask(mask)
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.write(headerBuffer);
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}
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headerBuffer.flip();
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payloadMasker.mask(mask);
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}
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@ -25,6 +25,7 @@
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package jdk.internal.net.http.websocket;
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import jdk.internal.net.http.HttpClientFacade;
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import jdk.internal.net.http.common.Demand;
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import jdk.internal.net.http.common.Log;
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import jdk.internal.net.http.common.Logger;
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@ -37,6 +38,7 @@ import java.io.IOException;
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import java.lang.ref.Reference;
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import java.net.ProtocolException;
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import java.net.URI;
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import java.net.http.HttpClient;
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import java.net.http.WebSocket;
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import java.nio.ByteBuffer;
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import java.nio.CharBuffer;
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@ -44,6 +46,7 @@ import java.nio.charset.CharacterCodingException;
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import java.nio.charset.CharsetEncoder;
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import java.nio.charset.CodingErrorAction;
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import java.nio.charset.StandardCharsets;
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import java.util.concurrent.Executor;
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import java.util.Objects;
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import java.util.concurrent.CompletableFuture;
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import java.util.concurrent.CompletionStage;
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@ -115,10 +118,12 @@ public final class WebSocketImpl implements WebSocket {
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private final SequentialScheduler receiveScheduler
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= new SequentialScheduler(new ReceiveTask());
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private final Demand demand = new Demand();
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private final Executor clientExecutor;
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public static CompletableFuture<WebSocket> newInstanceAsync(BuilderImpl b) {
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Function<Result, WebSocket> newWebSocket = r -> {
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WebSocket ws = newInstance(b.getUri(),
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b.getClient(),
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r.subprotocol,
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b.getListener(),
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r.transport);
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@ -140,10 +145,11 @@ public final class WebSocketImpl implements WebSocket {
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/* Exposed for testing purposes */
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static WebSocketImpl newInstance(URI uri,
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HttpClient client,
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String subprotocol,
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Listener listener,
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TransportFactory transport) {
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WebSocketImpl ws = new WebSocketImpl(uri, subprotocol, listener, transport);
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WebSocketImpl ws = new WebSocketImpl(uri, client, subprotocol, listener, transport);
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// This initialisation is outside of the constructor for the sake of
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// safe publication of WebSocketImpl.this
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ws.signalOpen();
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@ -151,10 +157,12 @@ public final class WebSocketImpl implements WebSocket {
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}
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private WebSocketImpl(URI uri,
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HttpClient client,
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String subprotocol,
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Listener listener,
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TransportFactory transportFactory) {
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this.uri = requireNonNull(uri);
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this.clientExecutor = ((HttpClientFacade)client).theExecutor();
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this.subprotocol = requireNonNull(subprotocol);
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this.listener = requireNonNull(listener);
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// Why 6? 1 sendPing/sendPong + 1 sendText/sendBinary + 1 Close +
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@ -356,7 +364,7 @@ public final class WebSocketImpl implements WebSocket {
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debug.log("request %s", n);
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}
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if (demand.increase(n)) {
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receiveScheduler.runOrSchedule();
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receiveScheduler.runOrSchedule(clientExecutor);
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}
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}
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@ -398,7 +406,7 @@ public final class WebSocketImpl implements WebSocket {
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* The assumptions about order is as follows:
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*
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* - state is never changed more than twice inside the `run` method:
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* x --(1)--> IDLE --(2)--> y (otherwise we're loosing events, or
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* x --(1)--> IDLE --(2)--> y (otherwise we're losing events, or
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* overwriting parts of messages creating a mess since there's no
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* queueing)
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* - OPEN is always the first state
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@ -702,7 +710,7 @@ public final class WebSocketImpl implements WebSocket {
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private void signalOpen() {
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debug.log("signalOpen");
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receiveScheduler.runOrSchedule();
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receiveScheduler.runOrSchedule(clientExecutor);
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}
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private void signalError(Throwable error) {
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@ -834,7 +842,7 @@ public final class WebSocketImpl implements WebSocket {
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if (currentState == ERROR || currentState == CLOSE) {
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break;
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} else if (state.compareAndSet(currentState, newState)) {
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receiveScheduler.runOrSchedule();
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receiveScheduler.runOrSchedule(clientExecutor);
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success = true;
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break;
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}
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@ -850,7 +858,7 @@ public final class WebSocketImpl implements WebSocket {
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State witness = state.compareAndExchange(expectedState, newState);
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boolean success = false;
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if (witness == expectedState) {
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receiveScheduler.runOrSchedule();
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receiveScheduler.runOrSchedule(clientExecutor);
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success = true;
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} else if (witness != ERROR && witness != CLOSE) {
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// This should be the only reason for inability to change the state
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@ -0,0 +1,33 @@
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/*
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* Copyright (c) 2016, 2018, 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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/*
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* @test
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* @bug 8268294
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* @modules java.net.http/jdk.internal.net.http.websocket:open jdk.httpserver
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* @run main/othervm
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* --add-reads java.net.http=ALL-UNNAMED
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* --add-reads java.net.http=jdk.httpserver
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* java.net.http/jdk.internal.net.http.websocket.WebSocketAndHttpTest
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*/
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public final class WebSocketServerDriver { }
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@ -0,0 +1,48 @@
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/*
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* Copyright (c) 2021, 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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package jdk.internal.net.http.websocket;
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import java.nio.ByteBuffer;
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/**
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* No implementation provided for onInit() because that must always be
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* implemented by user
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*/
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abstract class DefaultMessageStreamHandler implements MessageStreamHandler {
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public void onText(CharSequence data, boolean last) {}
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public void onBinary(ByteBuffer data, boolean last) {}
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public void onPing(ByteBuffer data) {}
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public void onPong(ByteBuffer data) {}
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public void onClose(int statusCode, CharSequence reason) {}
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public void onComplete() {}
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public void onError(Throwable e) {}
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}
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@ -0,0 +1,58 @@
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/*
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* Copyright (c) 2021, 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
|
||||
* version 2 for more details (a copy is included in the LICENSE file that
|
||||
* accompanied this code).
|
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*
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* 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,
|
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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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package jdk.internal.net.http.websocket;
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/**
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* WebSocket server listener interface, which is the same as the client API
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* in java.net.http. See MessageStreamResponder for how listener methods
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* can send response messages back to the client
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*
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* All MessageStreamConsumer methods must be implemented (plus the handler method
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* declared here). DefaultMessageStreamHandler provides empty implementations of all
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* that can be extended, except for onInit() which must always be implemented.
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*
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* void onText(CharSequence data, boolean last);
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*
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* void onBinary(ByteBuffer data, boolean last);
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*
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* void onPing(ByteBuffer data);
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*
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* void onPong(ByteBuffer data);
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*
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* void onClose(int statusCode, CharSequence reason);
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*
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* void onComplete();
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*
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* void onError(Throwable e);
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*/
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interface MessageStreamHandler extends MessageStreamConsumer {
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/**
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* called before any of the methods above to supply a
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* MessageStreamResponder for any new connection, which can be used to send replies
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* sendText(), sendBinary(), sendClose() etc
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*/
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void onInit(MessageStreamResponder responder);
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}
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@ -0,0 +1,47 @@
|
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/*
|
||||
* Copyright (c) 2021, 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.
|
||||
*/
|
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|
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package jdk.internal.net.http.websocket;
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|
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import java.io.*;
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import java.nio.*;
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import java.util.List;
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|
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/**
|
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* One of these supplied for each incoming client connection for use
|
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* by user written MessageStreamConsumer.
|
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*/
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interface MessageStreamResponder {
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public void sendText(CharBuffer src, boolean last) throws IOException;
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public void sendBinary(ByteBuffer src, boolean last) throws IOException;
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|
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public void sendPing(ByteBuffer src) throws IOException;
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public void sendPong(ByteBuffer src) throws IOException;
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|
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public void sendClose(int statusCode, CharBuffer reason) throws IOException;
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|
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public void close();
|
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}
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@ -0,0 +1,113 @@
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package jdk.internal.net.http.websocket;
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|
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import java.net.URI;
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import java.net.http.HttpClient;
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import java.net.http.HttpRequest;
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import java.net.http.HttpResponse;
|
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import java.net.http.WebSocket;
|
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import java.util.Optional;
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import java.util.concurrent.CompletionStage;
|
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import java.util.concurrent.CompletableFuture;
|
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import java.util.concurrent.ExecutorService;
|
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import java.util.concurrent.Executors;
|
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import java.util.function.Consumer;
|
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|
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/**
|
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* This is the client side of the test invoked from WebSocketAndHttpTest:
|
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*
|
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* The two args are the addresses of a (local) Websocket and Http server
|
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*
|
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* The test first sends a request to the WS server and in the listener
|
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* which handles the response, it tries to send a request to the http
|
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* server. This hangs if the listener was invoked from the selector
|
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* manager thread. If invoked from a different thread then the http
|
||||
* response is received and the response string is mapped to string
|
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* "succeeded"
|
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*/
|
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public class WebSocketAndHttpClient {
|
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|
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public static void main(String[] args) throws InterruptedException {
|
||||
|
||||
ExecutorService executorService = Executors.newCachedThreadPool();
|
||||
HttpClient httpClient = HttpClient.newBuilder().executor(executorService).build();
|
||||
|
||||
WebSocketTest wsTest = new WebSocketTest(httpClient, args[0]);
|
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HttpTest httpTest = new HttpTest(httpClient, args[1]);
|
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|
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final CompletableFuture<String> result = new CompletableFuture<>();
|
||||
|
||||
wsTest.listen(message -> {
|
||||
try {
|
||||
String r = httpTest.getData(message);
|
||||
result.complete(r);
|
||||
} catch (Exception e) {
|
||||
result.completeExceptionally(e);
|
||||
}
|
||||
});
|
||||
|
||||
wsTest.sendData("TEST_DATA");
|
||||
|
||||
System.out.println("Wait for result");
|
||||
try {
|
||||
result.join();
|
||||
System.out.println("Result: success");
|
||||
} finally {
|
||||
executorService.shutdownNow();
|
||||
}
|
||||
}
|
||||
|
||||
static class WebSocketTest {
|
||||
final HttpClient httpClient;
|
||||
final String server;
|
||||
volatile WebSocket webSocket;
|
||||
|
||||
WebSocketTest(HttpClient httpClient, String server) {
|
||||
this.httpClient = httpClient;
|
||||
this.server = server;
|
||||
}
|
||||
|
||||
public void listen(Consumer<String> consumer) {
|
||||
URI uri = URI.create(server);
|
||||
System.out.println("WS API client - Connecting to " + uri.toString());
|
||||
CompletableFuture<WebSocket> cf = httpClient.newWebSocketBuilder()
|
||||
.buildAsync(uri, new WebSocket.Listener() {
|
||||
@Override
|
||||
public CompletionStage<?> onText(WebSocket webSocket, CharSequence data, boolean last) {
|
||||
System.out.println("WS API client - received data: " + data);
|
||||
consumer.accept(data.toString());
|
||||
return null;
|
||||
}
|
||||
public void onError(WebSocket webSocket, Throwable error) {
|
||||
System.out.println("WS API client - error");
|
||||
error.printStackTrace();
|
||||
}
|
||||
});
|
||||
System.out.println("CF created");
|
||||
webSocket = cf.join();
|
||||
System.out.println("Websocket created");
|
||||
}
|
||||
|
||||
void sendData(String data) {
|
||||
System.out.println("WS API client - sending data via WebSocket: {}" + data);
|
||||
webSocket.sendText(data, true).join();
|
||||
}
|
||||
}
|
||||
|
||||
static class HttpTest {
|
||||
final HttpClient httpClient;
|
||||
final String baseUrl;
|
||||
|
||||
HttpTest(HttpClient httpClient, String baseUrl) {
|
||||
this.httpClient = httpClient;
|
||||
this.baseUrl = baseUrl;
|
||||
}
|
||||
|
||||
private String getData(String data) throws Exception {
|
||||
URI uri = URI.create(baseUrl + "?param=" + data);
|
||||
HttpRequest request = HttpRequest.newBuilder().GET().uri(uri).build();
|
||||
System.out.println("Http API Client - send HTTP GET request with parameter {}" + data);
|
||||
HttpResponse<String> send = httpClient.send(request, HttpResponse.BodyHandlers.ofString());
|
||||
return send.body();
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,75 @@
|
||||
/*
|
||||
* Copyright (c) 2016, 2018, 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.
|
||||
*/
|
||||
|
||||
package jdk.internal.net.http.websocket;
|
||||
|
||||
import java.net.*;
|
||||
import java.nio.CharBuffer;
|
||||
import java.io.*;
|
||||
|
||||
import com.sun.net.httpserver.*;
|
||||
|
||||
public class WebSocketAndHttpTest {
|
||||
static class WHandler extends DefaultMessageStreamHandler {
|
||||
volatile MessageStreamResponder responder;
|
||||
|
||||
public void onText(CharSequence data, boolean last) {
|
||||
System.out.println("onText: " + data);
|
||||
System.out.println("onText: " + Thread.currentThread());
|
||||
try {
|
||||
responder.sendText(CharBuffer.wrap(data), true);
|
||||
System.out.println("onText: send ok");
|
||||
} catch (IOException e) {
|
||||
System.out.println("onText: " + e);
|
||||
throw new UncheckedIOException(e);
|
||||
}
|
||||
}
|
||||
|
||||
public void onInit(MessageStreamResponder responder) {
|
||||
System.out.println("onInit");
|
||||
this.responder = responder;
|
||||
}
|
||||
}
|
||||
|
||||
static HttpHandler httpHandler = (ex) -> ex.sendResponseHeaders(200, -1);
|
||||
|
||||
public static void main(String[] args) throws Exception {
|
||||
HttpServer hserver = null;
|
||||
try {
|
||||
WebSocketServer server = new WebSocketServer(new WHandler());
|
||||
server.open();
|
||||
URI uri = server.getURI();
|
||||
|
||||
hserver = HttpServer.create(new InetSocketAddress(0), 4);
|
||||
hserver.createContext("/", httpHandler);
|
||||
hserver.start();
|
||||
|
||||
int port = hserver.getAddress().getPort();
|
||||
URI huri = new URI("http://127.0.0.1:" + port + "/foo");
|
||||
|
||||
WebSocketAndHttpClient.main(new String[]{uri.toString(), huri.toString()});
|
||||
} finally {
|
||||
hserver.stop(0);
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,186 @@
|
||||
/*
|
||||
* Copyright (c) 2021, 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.
|
||||
*/
|
||||
|
||||
package jdk.internal.net.http.websocket;
|
||||
|
||||
import java.util.LinkedList;
|
||||
import java.util.List;
|
||||
import java.io.*;
|
||||
import java.nio.*;
|
||||
import java.nio.channels.*;
|
||||
|
||||
public class WebSocketResponder implements MessageStreamResponder {
|
||||
|
||||
final MessageStreamConsumer consumer;
|
||||
final LinkedList<ByteBuffer> queue;
|
||||
volatile boolean closed = false;
|
||||
|
||||
final MessageEncoder encoder;
|
||||
final MessageDecoder decoder;
|
||||
|
||||
static final int BUF_SIZE = 1024;
|
||||
|
||||
public WebSocketResponder(MessageStreamConsumer consumer) {
|
||||
this.consumer = consumer;
|
||||
this.queue = new LinkedList<>();
|
||||
this.decoder = new MessageDecoder(consumer, true);
|
||||
this.encoder = new MessageEncoder(true);
|
||||
}
|
||||
|
||||
// own thread
|
||||
public void readLoop(SocketChannel chan) throws IOException {
|
||||
chan.configureBlocking(true);
|
||||
boolean eof = false;
|
||||
ByteBuffer buf = ByteBuffer.allocate(8 * 1024);
|
||||
Frame.Reader reader = new Frame.Reader();
|
||||
try {
|
||||
while (!eof) {
|
||||
int count;
|
||||
buf.clear();
|
||||
eof = ((count=chan.read(buf)) == -1);
|
||||
if (!eof) {
|
||||
buf.flip();
|
||||
reader.readFrame(buf, decoder);
|
||||
}
|
||||
}
|
||||
} catch (IOException e) {
|
||||
if (!closed)
|
||||
throw e;
|
||||
}
|
||||
}
|
||||
|
||||
// own thread
|
||||
public void writeLoop(SocketChannel chan) throws IOException {
|
||||
// read queue and send data
|
||||
while (true) {
|
||||
ByteBuffer buf;
|
||||
synchronized(queue) {
|
||||
while (queue.isEmpty()) {
|
||||
try {
|
||||
queue.wait();
|
||||
} catch (InterruptedException e) {
|
||||
throw new IOException(e);
|
||||
}
|
||||
if (queue.isEmpty() && closed) {
|
||||
chan.close();
|
||||
return;
|
||||
}
|
||||
}
|
||||
buf = queue.remove(0);
|
||||
}
|
||||
chan.write(buf);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Public methods below used y MessageStreamHandler to send replies
|
||||
* to client.
|
||||
*/
|
||||
@Override
|
||||
public void sendText(CharBuffer src, boolean last) throws IOException {
|
||||
ByteBuffer buf = ByteBuffer.allocate(BUF_SIZE);
|
||||
LinkedList<ByteBuffer> bufs = new LinkedList<>();
|
||||
boolean done = false;
|
||||
do {
|
||||
buf.clear();
|
||||
done = encoder.encodeText(src, last, buf);
|
||||
buf.flip();
|
||||
bufs.add(buf);
|
||||
} while (!done);
|
||||
sendMessage(bufs);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void sendBinary(ByteBuffer src, boolean last) throws IOException {
|
||||
ByteBuffer buf = ByteBuffer.allocate(BUF_SIZE);
|
||||
LinkedList<ByteBuffer> bufs = new LinkedList<>();
|
||||
boolean done = false;
|
||||
do {
|
||||
buf.clear();
|
||||
done = encoder.encodeBinary(src, last, buf);
|
||||
buf.flip();
|
||||
bufs.add(buf);
|
||||
} while (!done);
|
||||
sendMessage(bufs);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void sendPing(ByteBuffer src) throws IOException {
|
||||
ByteBuffer buf = ByteBuffer.allocate(BUF_SIZE);
|
||||
LinkedList<ByteBuffer> bufs = new LinkedList<>();
|
||||
boolean done = false;
|
||||
do {
|
||||
buf.clear();
|
||||
done = encoder.encodePing(src, buf);
|
||||
buf.flip();
|
||||
bufs.add(buf);
|
||||
} while (!done);
|
||||
sendMessage(bufs);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void sendPong(ByteBuffer src) throws IOException {
|
||||
ByteBuffer buf = ByteBuffer.allocate(BUF_SIZE);
|
||||
LinkedList<ByteBuffer> bufs = new LinkedList<>();
|
||||
boolean done = false;
|
||||
do {
|
||||
buf.clear();
|
||||
done = encoder.encodePong(src, buf);
|
||||
buf.flip();
|
||||
bufs.add(buf);
|
||||
} while (!done);
|
||||
sendMessage(bufs);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void sendClose(int statusCode, CharBuffer reason) throws IOException {
|
||||
ByteBuffer buf = ByteBuffer.allocate(BUF_SIZE);
|
||||
LinkedList<ByteBuffer> bufs = new LinkedList<>();
|
||||
boolean done = false;
|
||||
do {
|
||||
buf.clear();
|
||||
done = encoder.encodeClose(statusCode, reason, buf);
|
||||
buf.flip();
|
||||
bufs.add(buf);
|
||||
} while (!done);
|
||||
sendMessage(bufs);
|
||||
close();
|
||||
}
|
||||
|
||||
private void sendMessage(List<ByteBuffer> bufs) throws IOException {
|
||||
if (closed)
|
||||
throw new IOException("closed");
|
||||
synchronized(queue) {
|
||||
queue.addAll(bufs);
|
||||
queue.notify();
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void close() {
|
||||
synchronized(queue) {
|
||||
closed = true;
|
||||
queue.notify();
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,435 @@
|
||||
/*
|
||||
* Copyright (c) 2016, 2019, 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.
|
||||
*/
|
||||
|
||||
package jdk.internal.net.http.websocket;
|
||||
|
||||
import java.io.Closeable;
|
||||
import java.io.IOException;
|
||||
import java.io.UncheckedIOException;
|
||||
import java.net.InetAddress;
|
||||
import java.net.InetSocketAddress;
|
||||
import java.net.StandardSocketOptions;
|
||||
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.ArrayList;
|
||||
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.CountDownLatch;
|
||||
import java.util.concurrent.atomic.AtomicBoolean;
|
||||
import java.util.function.BiFunction;
|
||||
import java.util.regex.Pattern;
|
||||
import java.util.stream.Collectors;
|
||||
|
||||
import static java.lang.String.format;
|
||||
import static java.lang.System.err;
|
||||
import static java.nio.charset.StandardCharsets.ISO_8859_1;
|
||||
import static java.nio.charset.StandardCharsets.UTF_8;
|
||||
import static java.util.Arrays.asList;
|
||||
import static java.util.Objects.requireNonNull;
|
||||
|
||||
/**
|
||||
* WebSocket Server. This is a copy of the DummyWebSocketServer test class
|
||||
* but which also supports sending and receiving of websocket messages
|
||||
* using a simple API once the connection has been established
|
||||
*
|
||||
* MessageStreamHandler is the "listener" API to be implemented for handling
|
||||
* incoming messages. MessageStreamResponder is used by that handler to send
|
||||
* responses back to the client.
|
||||
*
|
||||
* 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 class WebSocketServer implements Closeable {
|
||||
|
||||
private final AtomicBoolean started = new AtomicBoolean();
|
||||
private final Thread thread;
|
||||
private volatile ServerSocketChannel ssc;
|
||||
private volatile InetSocketAddress address;
|
||||
private ByteBuffer read = ByteBuffer.allocate(16384);
|
||||
private final CountDownLatch readReady = new CountDownLatch(1);
|
||||
private final MessageStreamHandler handler;
|
||||
private final WebSocketResponder responder;
|
||||
private volatile int receiveBufferSize;
|
||||
|
||||
private static class Credentials {
|
||||
private final String name;
|
||||
private final String password;
|
||||
private Credentials(String name, String password) {
|
||||
this.name = name;
|
||||
this.password = password;
|
||||
}
|
||||
public String name() { return name; }
|
||||
public String password() { return password; }
|
||||
}
|
||||
|
||||
public WebSocketServer(MessageStreamHandler handler) {
|
||||
this(handler, defaultMapping(), null, null);
|
||||
}
|
||||
|
||||
public WebSocketServer() {
|
||||
this(null, defaultMapping(), null, null);
|
||||
}
|
||||
|
||||
public WebSocketServer(String username, String password) {
|
||||
this(null, defaultMapping(), username, password);
|
||||
}
|
||||
|
||||
public WebSocketServer(MessageStreamHandler handler,
|
||||
BiFunction<List<String>,Credentials,List<String>> mapping,
|
||||
String username, String password) {
|
||||
requireNonNull(mapping);
|
||||
this.handler = handler;
|
||||
if (handler == null) {
|
||||
this.responder = null;
|
||||
} else {
|
||||
this.responder = new WebSocketResponder(handler);
|
||||
handler.onInit(this.responder);
|
||||
}
|
||||
Credentials credentials = username != null ?
|
||||
new Credentials(username, password) : null;
|
||||
|
||||
thread = new Thread(() -> {
|
||||
try {
|
||||
while (!Thread.currentThread().isInterrupted()) {
|
||||
err.println("Accepting next connection at: " + ssc);
|
||||
SocketChannel channel = ssc.accept();
|
||||
err.println("Accepted: " + channel);
|
||||
try {
|
||||
channel.setOption(StandardSocketOptions.TCP_NODELAY, true);
|
||||
channel.configureBlocking(true);
|
||||
while (true) {
|
||||
StringBuilder request = new StringBuilder();
|
||||
if (!readRequest(channel, request)) {
|
||||
throw new IOException("Bad request:[" + request + "]");
|
||||
}
|
||||
List<String> strings = asList(request.toString().split("\r\n"));
|
||||
List<String> response = mapping.apply(strings, credentials);
|
||||
writeResponse(channel, response);
|
||||
|
||||
if (response.get(0).startsWith("HTTP/1.1 401")) {
|
||||
err.println("Sent 401 Authentication response " + channel);
|
||||
continue;
|
||||
} else {
|
||||
serve(channel);
|
||||
break;
|
||||
}
|
||||
}
|
||||
} catch (IOException e) {
|
||||
err.println("Error in connection: " + channel + ", " + e);
|
||||
} finally {
|
||||
err.println("Closed: " + channel);
|
||||
close(channel);
|
||||
readReady.countDown();
|
||||
}
|
||||
}
|
||||
} catch (ClosedByInterruptException ignored) {
|
||||
} catch (Exception e) {
|
||||
e.printStackTrace(err);
|
||||
} finally {
|
||||
close(ssc);
|
||||
err.println("Stopped at: " + getURI());
|
||||
}
|
||||
});
|
||||
thread.setName("WebSocketServer");
|
||||
thread.setDaemon(false);
|
||||
}
|
||||
|
||||
// runs in own thread. Override to implement different behavior
|
||||
protected void read(SocketChannel ch) throws IOException {
|
||||
responder.readLoop(ch);
|
||||
}
|
||||
|
||||
// runs in own thread. Override to implement different behavior
|
||||
protected void write(SocketChannel ch) throws IOException {
|
||||
responder.writeLoop(ch);
|
||||
}
|
||||
|
||||
protected final void serve(SocketChannel channel)
|
||||
throws InterruptedException
|
||||
{
|
||||
Thread reader = new Thread(() -> {
|
||||
try {
|
||||
read(channel);
|
||||
} catch (IOException ignored) { }
|
||||
});
|
||||
Thread writer = new Thread(() -> {
|
||||
try {
|
||||
write(channel);
|
||||
} catch (IOException ignored) { }
|
||||
});
|
||||
reader.start();
|
||||
writer.start();
|
||||
try {
|
||||
reader.join();
|
||||
} finally {
|
||||
reader.interrupt();
|
||||
try {
|
||||
writer.join();
|
||||
} finally {
|
||||
writer.interrupt();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public ByteBuffer read() throws InterruptedException {
|
||||
readReady.await();
|
||||
return read.duplicate().asReadOnlyBuffer().flip();
|
||||
}
|
||||
|
||||
public void setReceiveBufferSize(int bufsize) {
|
||||
assert ssc == null : "Must configure before calling open()";
|
||||
this.receiveBufferSize = bufsize;
|
||||
}
|
||||
|
||||
public void open() throws IOException {
|
||||
err.println("Starting");
|
||||
if (!started.compareAndSet(false, true)) {
|
||||
throw new IllegalStateException("Already started");
|
||||
}
|
||||
ssc = ServerSocketChannel.open();
|
||||
try {
|
||||
ssc.configureBlocking(true);
|
||||
var bufsize = receiveBufferSize;
|
||||
if (bufsize > 0) {
|
||||
err.printf("Configuring receive buffer size to %d%n", bufsize);
|
||||
try {
|
||||
ssc.setOption(StandardSocketOptions.SO_RCVBUF, bufsize);
|
||||
} catch (IOException x) {
|
||||
err.printf("Failed to configure receive buffer size to %d%n", bufsize);
|
||||
}
|
||||
}
|
||||
ssc.bind(new InetSocketAddress(InetAddress.getLoopbackAddress(), 0));
|
||||
address = (InetSocketAddress) ssc.getLocalAddress();
|
||||
thread.start();
|
||||
} catch (IOException e) {
|
||||
close(ssc);
|
||||
throw e;
|
||||
}
|
||||
err.println("Started at: " + getURI());
|
||||
}
|
||||
|
||||
@Override
|
||||
public void close() {
|
||||
err.println("Stopping: " + getURI());
|
||||
thread.interrupt();
|
||||
close(ssc);
|
||||
}
|
||||
|
||||
URI getURI() {
|
||||
if (!started.get()) {
|
||||
throw new IllegalStateException("Not yet started");
|
||||
}
|
||||
return URI.create("ws://localhost:" + address.getPort());
|
||||
}
|
||||
|
||||
private boolean readRequest(SocketChannel channel, StringBuilder request)
|
||||
throws IOException
|
||||
{
|
||||
ByteBuffer buffer = ByteBuffer.allocate(512);
|
||||
while (channel.read(buffer) != -1) {
|
||||
// read the complete HTTP request headers, there should be no body
|
||||
CharBuffer decoded;
|
||||
buffer.flip();
|
||||
try {
|
||||
decoded = ISO_8859_1.newDecoder().decode(buffer);
|
||||
} catch (CharacterCodingException e) {
|
||||
throw new UncheckedIOException(e);
|
||||
}
|
||||
request.append(decoded);
|
||||
if (Pattern.compile("\r\n\r\n").matcher(request).find())
|
||||
return true;
|
||||
buffer.clear();
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
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 BiFunction<List<String>,Credentials,List<String>> defaultMapping() {
|
||||
return (request, credentials) -> {
|
||||
List<String> response = new LinkedList<>();
|
||||
Iterator<String> iterator = request.iterator();
|
||||
if (!iterator.hasNext()) {
|
||||
throw new IllegalStateException("The request is empty");
|
||||
}
|
||||
String statusLine = iterator.next();
|
||||
if (!(statusLine.startsWith("GET /") && statusLine.endsWith(" HTTP/1.1"))) {
|
||||
throw new IllegalStateException
|
||||
("Unexpected status line: " + request.get(0));
|
||||
}
|
||||
response.add("HTTP/1.1 101 Switching Protocols");
|
||||
Map<String, List<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));
|
||||
}
|
||||
requestHeaders.computeIfAbsent(split[0], k -> new ArrayList<>()).add(split[1]);
|
||||
|
||||
}
|
||||
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");
|
||||
List<String> key = requestHeaders.get("Sec-WebSocket-Key");
|
||||
if (key == null || key.isEmpty()) {
|
||||
throw new IllegalStateException("Sec-WebSocket-Key is missing");
|
||||
}
|
||||
if (key.size() != 1) {
|
||||
throw new IllegalStateException("Sec-WebSocket-Key has too many values : " + key);
|
||||
}
|
||||
MessageDigest sha1 = null;
|
||||
try {
|
||||
sha1 = MessageDigest.getInstance("SHA-1");
|
||||
} catch (NoSuchAlgorithmException e) {
|
||||
throw new InternalError(e);
|
||||
}
|
||||
String x = key.get(0) + "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);
|
||||
|
||||
// check authorization credentials, if required by the server
|
||||
if (credentials != null && !authorized(credentials, requestHeaders)) {
|
||||
response.clear();
|
||||
response.add("HTTP/1.1 401 Unauthorized");
|
||||
response.add("Content-Length: 0");
|
||||
response.add("WWW-Authenticate: Basic realm=\"dummy server realm\"");
|
||||
}
|
||||
|
||||
return response;
|
||||
};
|
||||
}
|
||||
|
||||
// Checks credentials in the request against those allowable by the server.
|
||||
private static boolean authorized(Credentials credentials,
|
||||
Map<String,List<String>> requestHeaders) {
|
||||
List<String> authorization = requestHeaders.get("Authorization");
|
||||
if (authorization == null)
|
||||
return false;
|
||||
|
||||
if (authorization.size() != 1) {
|
||||
throw new IllegalStateException("Authorization unexpected count:" + authorization);
|
||||
}
|
||||
String header = authorization.get(0);
|
||||
if (!header.startsWith("Basic "))
|
||||
throw new IllegalStateException("Authorization not Basic: " + header);
|
||||
|
||||
header = header.substring("Basic ".length());
|
||||
String values = new String(Base64.getDecoder().decode(header), UTF_8);
|
||||
int sep = values.indexOf(':');
|
||||
if (sep < 1) {
|
||||
throw new IllegalStateException("Authorization not colon: " + values);
|
||||
}
|
||||
String name = values.substring(0, sep);
|
||||
String password = values.substring(sep + 1);
|
||||
|
||||
if (name.equals(credentials.name()) && password.equals(credentials.password()))
|
||||
return true;
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
protected static String expectHeader(Map<String, List<String>> headers,
|
||||
String name,
|
||||
String value) {
|
||||
List<String> v = headers.get(name);
|
||||
if (v == null) {
|
||||
throw new IllegalStateException(
|
||||
format("Expected '%s' header, not present in %s",
|
||||
name, headers));
|
||||
}
|
||||
if (!v.contains(value)) {
|
||||
throw new IllegalStateException(
|
||||
format("Expected '%s: %s', actual: '%s: %s'",
|
||||
name, value, name, v)
|
||||
);
|
||||
}
|
||||
return value;
|
||||
}
|
||||
|
||||
private static void close(AutoCloseable... acs) {
|
||||
for (AutoCloseable ac : acs) {
|
||||
try {
|
||||
ac.close();
|
||||
} catch (Exception ignored) { }
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
x
Reference in New Issue
Block a user