func BuildUpstream(upstream azber.Upstream, forward proxy.Dialer) (proxy.Dialer, error) {
cipherDecorator := azber.NewCipherConnDecorator(upstream.Crypto, upstream.Password)
forward = azber.NewDecorateClient(forward, cipherDecorator)
switch strings.ToLower(upstream.Type) {
case "socks5":
{
return azber.NewSocks5Client("tcp", upstream.Address, "", "", forward)
}
case "shadowsocks":
{
return azber.NewShadowsocksClient("tcp", upstream.Address, forward)
}
}
return nil, errors.New("unknown upstream type" + upstream.Type)
}
func runSOCKS5Server(forward proxy.Dialer) {
listener, err := net.Listen("tcp", ":7777")
if err != nil {
log.Println("net.Listen failed, err:", err, ":7777")
return
}
cipherDecorator := azber.NewCipherConnDecorator("aes-256-cfb", "1234567890")
listener = azber.NewDecorateListener(listener, cipherDecorator)
socks5Svr, err := azber.NewSocks5Server(forward)
if err != nil {
listener.Close()
log.Println("socks.NewSocks5Server failed, err:", err)
return
}
go func() {
defer listener.Close()
socks5Svr.Serve(listener)
}()
}