A simple Socks5 Proxy has no encryption

implementation by python and io multiplexing
implementation by golang

todo:

support udp

learn from shadowsocks

how to use:

server:

python tcp_event.py
go build -o socks_proxy main.go && ./socks_proxy

client:

macOS:
     brew install polipo
     polipo  socksParentProxy=$server_host:$server_port
     export http_proxy=http://127.0.0.1:8123 https_proxy=http://127.0.0.1:8123