private void sendSocks5Response(Session session, Socks5HandleResult result) throws IOException {
if (result.getResponseToLocal() != null) {
addDataToSend(session, ChannelType.LOCAL, result.getResponseToLocal(), false);
}
if (result.getResponseToRemote() != null) {
if (!session.isRemoteConnected()) {
session.connectToRemote();
}
addDataToSend(session, ChannelType.REMOTE, result.getResponseToRemote(), true);
}
}
private void handleSocks5Read(Session session, ByteBuffer readableBuffer) throws IOException {
// socks5 protocol
Socks5StageHandler handler = Socks5HandlerFactory.getHandler(session.getStage());
Socks5HandleResult result = handler.handle(readableBuffer);
sendSocks5Response(session, result);
if (result.getType() == Socks5HandleResult.Type.COMPLETED) {
handleSocks5ReadCompleted(session, readableBuffer);
} else if (result.getType() == Socks5HandleResult.Type.UNCOMPLETED) {
handleSocks5ReadUncompleted(session, readableBuffer);
} else if (result.getType() == Socks5HandleResult.Type.ERROR) {
handleSocks5ReadError(session);
} else {
throw new IllegalStateException("wrong code: " + result.getType());
}
}