public class Socks4ServerDecoder extends ReplayingDecoder<Socks4ServerDecoder.State>
Socks4CommandRequest
from the inbound ByteBuf
s.
On successful decode, this decoder will forward the received data to the next handler, so that
other handler can remove this decoder later. On failed decode, this decoder will discard the
received data, so that other handler closes the connection later.Modifier and Type | Class and Description |
---|---|
(package private) static class |
Socks4ServerDecoder.State |
ByteToMessageDecoder.Cumulator
ChannelHandler.Sharable
Modifier and Type | Field and Description |
---|---|
private java.lang.String |
dstAddr |
private int |
dstPort |
private static int |
MAX_FIELD_LENGTH |
private Socks4CommandType |
type |
private java.lang.String |
userId |
COMPOSITE_CUMULATOR, MERGE_CUMULATOR
Constructor and Description |
---|
Socks4ServerDecoder() |
Modifier and Type | Method and Description |
---|---|
protected void |
decode(ChannelHandlerContext ctx,
ByteBuf in,
java.util.List<java.lang.Object> out)
Decode the from one
ByteBuf to an other. |
private void |
fail(java.util.List<java.lang.Object> out,
java.lang.Throwable cause) |
private static java.lang.String |
readString(java.lang.String fieldName,
ByteBuf in)
Reads a variable-length NUL-terminated string as defined in SOCKS4.
|
callDecode, checkpoint, checkpoint, state, state
actualReadableBytes, channelInactive, channelRead, channelReadComplete, decodeLast, discardSomeReadBytes, handlerRemoved, handlerRemoved0, internalBuffer, isSingleDecode, setCumulator, setDiscardAfterReads, setSingleDecode, userEventTriggered
channelActive, channelRegistered, channelUnregistered, channelWritabilityChanged, exceptionCaught
ensureNotSharable, handlerAdded, isSharable
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
handlerAdded
private static final int MAX_FIELD_LENGTH
private Socks4CommandType type
private java.lang.String dstAddr
private int dstPort
private java.lang.String userId
protected void decode(ChannelHandlerContext ctx, ByteBuf in, java.util.List<java.lang.Object> out) throws java.lang.Exception
ByteToMessageDecoder
ByteBuf
to an other. This method will be called till either the input
ByteBuf
has nothing to read when return from this method or till nothing was read from the input
ByteBuf
.decode
in class ByteToMessageDecoder
ctx
- the ChannelHandlerContext
which this ByteToMessageDecoder
belongs toin
- the ByteBuf
from which to read dataout
- the List
to which decoded messages should be addedjava.lang.Exception
- is thrown if an error occursprivate void fail(java.util.List<java.lang.Object> out, java.lang.Throwable cause)
private static java.lang.String readString(java.lang.String fieldName, ByteBuf in)