Class Socks5UdpRelayHandler

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.channel.ChannelInboundHandlerAdapter

io.netty.channel.ChannelDuplexHandler

com.soulfiremc.server.util.netty.Socks5UdpRelayHandler

All Implemented Interfaces:

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

public class Socks5UdpRelayHandler
extends io.netty.channel.ChannelDuplexHandler

Implements SOCKS5 UDP ASSOCIATE (RFC 1928, command 0x03) for proxying UDP traffic through a SOCKS5 proxy. Used for Bedrock Edition connections which use RakNet over UDP instead of TCP.

Opens a TCP control connection to the SOCKS5 proxy for the handshake, then wraps/unwraps UDP datagrams with the SOCKS5 UDP relay header.

Nested Class Summary

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

io.netty.channel.ChannelHandler.Sharable

Constructor Summary

Constructors

Constructor	Description
Socks5UdpRelayHandler(InetSocketAddress proxyAddress, @Nullable String username, @Nullable String password)

Method Summary

Modifier and Type	Method	Description
void	channelInactive(io.netty.channel.ChannelHandlerContext ctx)
void	channelRead(io.netty.channel.ChannelHandlerContext ctx, Object msg)
void	connect(io.netty.channel.ChannelHandlerContext ctx, SocketAddress remoteAddress, SocketAddress localAddress, io.netty.channel.ChannelPromise promise)
void	exceptionCaught(io.netty.channel.ChannelHandlerContext ctx, Throwable cause)
void	write(io.netty.channel.ChannelHandlerContext ctx, Object msg, io.netty.channel.ChannelPromise promise)

Methods inherited from class io.netty.channel.ChannelDuplexHandler

bind, close, deregister, disconnect, flush, read

Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

channelActive, channelReadComplete, channelRegistered, channelUnregistered, channelWritabilityChanged, userEventTriggered

Methods inherited from class io.netty.channel.ChannelHandlerAdapter

ensureNotSharable, handlerAdded, handlerRemoved, isSharable

Methods inherited from class Object

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

Methods inherited from interface io.netty.channel.ChannelHandler

handlerAdded, handlerRemoved

Constructor Details

Socks5UdpRelayHandler

public Socks5UdpRelayHandler(InetSocketAddress proxyAddress,
 @Nullable String username,
 @Nullable String password)

Method Details

connect

public void connect(io.netty.channel.ChannelHandlerContext ctx,
 SocketAddress remoteAddress,
 SocketAddress localAddress,
 io.netty.channel.ChannelPromise promise)

Specified by:

connect in interface io.netty.channel.ChannelOutboundHandler

Overrides:

connect in class io.netty.channel.ChannelDuplexHandler

write

public void write(io.netty.channel.ChannelHandlerContext ctx,
 Object msg,
 io.netty.channel.ChannelPromise promise)
           throws Exception

Specified by:

write in interface io.netty.channel.ChannelOutboundHandler

Overrides:

write in class io.netty.channel.ChannelDuplexHandler

Throws:

Exception

channelRead

public void channelRead(io.netty.channel.ChannelHandlerContext ctx,
 Object msg)
                 throws Exception

Specified by:

channelRead in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelRead in class io.netty.channel.ChannelInboundHandlerAdapter

Throws:

Exception

channelInactive

public void channelInactive(io.netty.channel.ChannelHandlerContext ctx)
                     throws Exception

Specified by:

channelInactive in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelInactive in class io.netty.channel.ChannelInboundHandlerAdapter

Throws:

Exception

exceptionCaught

public void exceptionCaught(io.netty.channel.ChannelHandlerContext ctx,
 Throwable cause)

Specified by:

exceptionCaught in interface io.netty.channel.ChannelHandler

Specified by:

exceptionCaught in interface io.netty.channel.ChannelInboundHandler

Overrides:

exceptionCaught in class io.netty.channel.ChannelInboundHandlerAdapter