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Only parse the packet length once per encrypted packet. See #658

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This commit is contained in:
Norman Maurer 2012-10-16 14:21:42 +02:00
parent 52d64afa2f
commit b75ab6171c
1 changed files with 35 additions and 23 deletions
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14
src/main/java/org/jboss/netty/handler/ssl/SslHandler.java
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@ -208,6 +208,8 @@ public class SslHandler extends FrameDecoder
private boolean closeOnSSLException;
private int packetLength = Integer.MIN_VALUE;
/**
* Creates a new instance.
*
@ -758,10 +760,11 @@ public class SslHandler extends FrameDecoder
protected Object decode(
final ChannelHandlerContext ctx, Channel channel, ChannelBuffer buffer) throws Exception {
// Check if the packet length was parsed yet, if so we can skip the parsing
if (packetLength == Integer.MIN_VALUE) {
if (buffer.readableBytes() < 5) {
return null;
}
int packetLength = getEncryptedPacketLength(buffer);
if (packetLength == -1) {
@ -769,6 +772,7 @@ public class SslHandler extends FrameDecoder
NotSslRecordException e = new NotSslRecordException(
"not an SSL/TLS record: " + ChannelBuffers.hexDump(buffer));
buffer.skipBytes(buffer.readableBytes());
if (closeOnSSLException) {
// first trigger the exception and then close the channel
fireExceptionCaught(ctx, e);
@ -783,6 +787,8 @@ public class SslHandler extends FrameDecoder
}
assert packetLength > 0;
this.packetLength = packetLength;
}
if (buffer.readableBytes() < packetLength) {
return null;
@ -804,7 +810,13 @@ public class SslHandler extends FrameDecoder
// before calling the user code.
final int packetOffset = buffer.readerIndex();
buffer.skipBytes(packetLength);
try {
return unwrap(ctx, channel, buffer, packetOffset, packetLength);
} finally {
// reset the packet length so it will be parsed again on the next call
packetLength = Integer.MIN_VALUE;
}
}
/**