Package org.dcache.xrootd.core

Class XrootdSigverDecoder

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.channel.ChannelInboundHandlerAdapter

io.netty.handler.codec.ByteToMessageDecoder

org.dcache.xrootd.core.AbstractXrootdDecoder

org.dcache.xrootd.core.XrootdSigverDecoder

All Implemented Interfaces:

io.netty.channel.ChannelHandler, io.netty.channel.ChannelInboundHandler

public class XrootdSigverDecoder
extends AbstractXrootdDecoder

A FrameDecoder decoding xrootd frames into AbstractRequestMessage objects. Provides signed hash verification capabilities.

Maintains the last seqno used on this TCP connection, as well as the last sigver request. When the next request arrives, verifies that its hash matches the signature of the sigver request. If the protocol requires generalized encryption (session key), the signature is first decrypted using the provided module.

Must be substituted for the vanilla message decoder.

Nested Class Summary

Nested classes/interfaces inherited from class io.netty.handler.codec.ByteToMessageDecoder

io.netty.handler.codec.ByteToMessageDecoder.Cumulator

Nested classes/interfaces inherited from interface io.netty.channel.ChannelHandler

io.netty.channel.ChannelHandler.Sharable

Field Summary

Fields inherited from class org.dcache.xrootd.core.AbstractXrootdDecoder

LOGGER

Fields inherited from class io.netty.handler.codec.ByteToMessageDecoder

COMPOSITE_CUMULATOR, MERGE_CUMULATOR

Constructor Summary

Constructors

Constructor	Description
XrootdSigverDecoder(SigningPolicy signingPolicy, BufferDecrypter decryptionHandler)

Method Summary

Modifier and Type	Method	Description
protected void	decode(io.netty.channel.ChannelHandlerContext ctx, io.netty.buffer.ByteBuf in, java.util.List<java.lang.Object> out)

Methods inherited from class org.dcache.xrootd.core.AbstractXrootdDecoder

getRequest, verifyMessageLength

Methods inherited from class io.netty.handler.codec.ByteToMessageDecoder

actualReadableBytes, callDecode, channelInactive, channelRead, channelReadComplete, decodeLast, discardSomeReadBytes, handlerRemoved, handlerRemoved0, internalBuffer, isSingleDecode, setCumulator, setDiscardAfterReads, setSingleDecode, userEventTriggered

Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

channelActive, channelRegistered, channelUnregistered, channelWritabilityChanged, exceptionCaught

Methods inherited from class io.netty.channel.ChannelHandlerAdapter

ensureNotSharable, handlerAdded, isSharable

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface io.netty.channel.ChannelHandler

handlerAdded

Constructor Detail

XrootdSigverDecoder

public XrootdSigverDecoder(SigningPolicy signingPolicy,
                           BufferDecrypter decryptionHandler)

Method Detail

decode

protected void decode(io.netty.channel.ChannelHandlerContext ctx,
                      io.netty.buffer.ByteBuf in,
                      java.util.List<java.lang.Object> out)

Specified by:

decode in class io.netty.handler.codec.ByteToMessageDecoder