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Copy ByteBufPair buffers when using with SSL (#2401) #2464

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merged 1 commit into from
Aug 31, 2018
Merged

Copy ByteBufPair buffers when using with SSL (#2401) #2464

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4 changes: 3 additions & 1 deletion pulsar-broker/src/main/java/org/apache/pulsar/broker/service/PulsarChannelInitializer.java
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Original file line number Diff line number Diff line change
Expand Up @@ -57,9 +57,11 @@ protected void initChannel(SocketChannel ch) throws Exception {
serviceConfig.getTlsCiphers(), serviceConfig.getTlsProtocols(),
serviceConfig.getTlsRequireTrustedClientCertOnConnect());
ch.pipeline().addLast(TLS_HANDLER, sslCtx.newHandler(ch.alloc()));
ch.pipeline().addLast("ByteBufPairEncoder", ByteBufPair.COPYING_ENCODER);
} else {
ch.pipeline().addLast("ByteBufPairEncoder", ByteBufPair.ENCODER);
}

ch.pipeline().addLast("ByteBufPairEncoder", ByteBufPair.ENCODER);
ch.pipeline().addLast("frameDecoder", new LengthFieldBasedFrameDecoder(PulsarDecoder.MaxFrameSize, 0, 4, 0, 4));
ch.pipeline().addLast("handler", new ServerCnx(pulsar));
}
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5 changes: 3 additions & 2 deletions pulsar-client/src/main/java/org/apache/pulsar/client/impl/ConnectionPool.java
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Expand Up @@ -100,9 +100,10 @@ public void initChannel(SocketChannel ch) throws Exception {
conf.getTlsTrustCertsFilePath());
}
ch.pipeline().addLast(TLS_HANDLER, sslCtx.newHandler(ch.alloc()));
ch.pipeline().addLast("ByteBufPairEncoder", ByteBufPair.COPYING_ENCODER);
} else {
ch.pipeline().addLast("ByteBufPairEncoder", ByteBufPair.ENCODER);
}

ch.pipeline().addLast("ByteBufPairEncoder", ByteBufPair.ENCODER);
ch.pipeline().addLast("frameDecoder", new LengthFieldBasedFrameDecoder(MaxMessageSize, 0, 4, 0, 4));
ch.pipeline().addLast("handler", clientCnxSupplier.get());
}
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25 changes: 24 additions & 1 deletion pulsar-common/src/main/java/org/apache/pulsar/common/api/ByteBufPair.java
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Expand Up @@ -109,6 +109,7 @@ public ReferenceCounted touch(Object hint) {
}

public static final Encoder ENCODER = new Encoder();
public static final CopyingEncoder COPYING_ENCODER = new CopyingEncoder();

@Sharable
public static class Encoder extends ChannelOutboundHandlerAdapter {
Expand All @@ -132,4 +133,26 @@ public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise)
}
}

}
@Sharable
public static class CopyingEncoder extends ChannelOutboundHandlerAdapter {
@Override
public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception {
if (msg instanceof ByteBufPair) {
ByteBufPair b = (ByteBufPair) msg;

// Some handlers in the pipeline will modify the bytebufs passed in to them (i.e. SslHandler).
// For these handlers, we need to pass a copy of the buffers as the source buffers may be cached
// for multiple requests.
try {
ctx.write(b.getFirst().copy(), ctx.voidPromise());
ctx.write(b.getSecond().copy(), promise);
} finally {
ReferenceCountUtil.safeRelease(b);
}
} else {
ctx.write(msg, promise);
}
}
}

}