org.apache.mina.proxy.handlers.socks
Class Socks4LogicHandler

java.lang.Object
  org.apache.mina.proxy.AbstractProxyLogicHandler
      org.apache.mina.proxy.handlers.socks.AbstractSocksLogicHandler
          org.apache.mina.proxy.handlers.socks.Socks4LogicHandler

All Implemented Interfaces:

ProxyLogicHandler

public class Socks4LogicHandler
extends AbstractSocksLogicHandler

Socks4LogicHandler.java - SOCKS4/SOCKS4a authentication mechanisms logic handler.

Since:

MINA 2.0.0-M3

Author:

Apache MINA Project

Field Summary

Fields inherited from class org.apache.mina.proxy.handlers.socks.AbstractSocksLogicHandler

request

Constructor Summary

Socks4LogicHandler(ProxyIoSession proxyIoSession)

Method Summary

void	doHandshake(IoFilter.NextFilter nextFilter) Perform the handshake.
protected void	handleResponse(IoBuffer buf) Handle a SOCKS4/SOCKS4a response from the proxy server.
void	messageReceived(IoFilter.NextFilter nextFilter, IoBuffer buf) Handle incoming data during the handshake process.
protected void	writeRequest(IoFilter.NextFilter nextFilter, SocksProxyRequest request) Encode a SOCKS4/SOCKS4a request and writes it to the next filter so it can be sent to the proxy server.

Methods inherited from class org.apache.mina.proxy.AbstractProxyLogicHandler

closeSession, closeSession, enqueueWriteRequest, flushPendingWriteRequests, getProxyFilter, getProxyIoSession, getSession, isHandshakeComplete, setHandshakeComplete, writeData

Methods inherited from class java.lang.Object

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

Constructor Detail

Socks4LogicHandler

public Socks4LogicHandler(ProxyIoSession proxyIoSession)

Method Detail

doHandshake

public void doHandshake(IoFilter.NextFilter nextFilter)

Perform the handshake.

Parameters:

nextFilter - the next filter

writeRequest

protected void writeRequest(IoFilter.NextFilter nextFilter,
                            SocksProxyRequest request)

Encode a SOCKS4/SOCKS4a request and writes it to the next filter so it can be sent to the proxy server.

Parameters:

nextFilter - the next filter

request - the request to send.

messageReceived

public void messageReceived(IoFilter.NextFilter nextFilter,
                            IoBuffer buf)

Handle incoming data during the handshake process. Should consume only the handshake data from the buffer, leaving any extra data in place.

Parameters:

nextFilter - the next filter

buf - the server response data buffer

handleResponse

protected void handleResponse(IoBuffer buf)
                       throws Exception

Handle a SOCKS4/SOCKS4a response from the proxy server. Test the response buffer reply code and call AbstractProxyLogicHandler.setHandshakeComplete() if access is granted.

Parameters:

buf - the buffer holding the server response data.

Throws:

exception - if server response is malformed or if request is rejected by the proxy server.

Exception