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Do not use static exceptions for websocket handshake timeout (#9174) 

Motivation:

f17bfd0f64 removed the usage of static exception instances to reduce the risk of OOME due addSupressed calls. We should do the same for exceptions used to signal handshake timeouts.

Modifications:

Do not use static instances

Result:

No risk of OOME due addSuppressed calls
This commit is contained in:
Norman Maurer 2019-05-23 08:24:03 +02:00 committed by GitHub
parent b11afd28f4
commit 137a3e7137
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 3 additions and 14 deletions
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8
codec-http/src/main/java/io/netty/handler/codec/http/websocketx/WebSocketClientProtocolHandshakeHandler.java
View File

@ -24,18 +24,12 @@ import io.netty.handler.codec.http.FullHttpResponse;
import io.netty.handler.codec.http.websocketx.WebSocketClientProtocolHandler.ClientHandshakeStateEvent;
import io.netty.util.concurrent.Future;
import io.netty.util.concurrent.FutureListener;
import io.netty.util.concurrent.ScheduledFuture;
import io.netty.util.internal.ThrowableUtil;
import java.util.concurrent.TimeUnit;
import static io.netty.util.internal.ObjectUtil.*;
class WebSocketClientProtocolHandshakeHandler extends ChannelInboundHandlerAdapter {
private static final WebSocketHandshakeException HANDSHAKE_TIMED_OUT_EXCEPTION = ThrowableUtil.unknownStackTrace(
new WebSocketHandshakeException("handshake timed out"),
WebSocketClientProtocolHandshakeHandler.class,
"channelActive(...)");
private static final long DEFAULT_HANDSHAKE_TIMEOUT_MS = 10000L;
private final WebSocketClientHandshaker handshaker;
@ -112,7 +106,7 @@ class WebSocketClientProtocolHandshakeHandler extends ChannelInboundHandlerAdapt
return;
}
if (localHandshakePromise.tryFailure(HANDSHAKE_TIMED_OUT_EXCEPTION)) {
if (localHandshakePromise.tryFailure(new WebSocketHandshakeException("handshake timed out"))) {
ctx.flush()
.fireUserEventTriggered(ClientHandshakeStateEvent.HANDSHAKE_TIMEOUT)
.close();

9
codec-http/src/main/java/io/netty/handler/codec/http/websocketx/WebSocketServerProtocolHandshakeHandler.java
View File

@ -30,8 +30,6 @@ import io.netty.handler.codec.http.websocketx.WebSocketServerProtocolHandler.Ser
import io.netty.handler.ssl.SslHandler;
import io.netty.util.concurrent.Future;
import io.netty.util.concurrent.FutureListener;
import io.netty.util.concurrent.ScheduledFuture;
import io.netty.util.internal.ThrowableUtil;
import java.util.concurrent.TimeUnit;
@ -45,10 +43,6 @@ import static io.netty.util.internal.ObjectUtil.*;
* Handles the HTTP handshake (the HTTP Upgrade request) for {@link WebSocketServerProtocolHandler}.
*/
class WebSocketServerProtocolHandshakeHandler extends ChannelInboundHandlerAdapter {
private static final WebSocketHandshakeException HANDSHAKE_TIMED_OUT_EXCEPTION = ThrowableUtil.unknownStackTrace(
new WebSocketHandshakeException("handshake timed out"),
WebSocketServerProtocolHandshakeHandler.class,
"channelRead(...)");
private static final long DEFAULT_HANDSHAKE_TIMEOUT_MS = 10000L;
@ -180,7 +174,8 @@ class WebSocketServerProtocolHandshakeHandler extends ChannelInboundHandlerAdapt
final Future<?> timeoutFuture = ctx.executor().schedule(new Runnable() {
@Override
public void run() {
if (localHandshakePromise.tryFailure(HANDSHAKE_TIMED_OUT_EXCEPTION)) {
if (!localHandshakePromise.isDone() &&
localHandshakePromise.tryFailure(new WebSocketHandshakeException("handshake timed out"))) {
ctx.flush()
.fireUserEventTriggered(ServerHandshakeStateEvent.HANDSHAKE_TIMEOUT)
.close();