Read Tor node's traffic information using Go (can be turned into a telegraf plugin)

tor.go

package main

//https://gitweb.torproject.org/torspec.git/tree/control-spec.txt
import (
	"fmt"
	"net"
	"net/textproto"
	"os"
	"time"

	"github.com/cretz/bine/control"
)

func main() {
	if err := run(); err != nil {
		_, _ = fmt.Fprintf(os.Stderr, "error: %v\n", err)
		os.Exit(1)
	}
}

func run() error {
	println("Starting")

	tconn, err := net.DialTimeout("tcp", "127.0.0.1:9051", 2*time.Minute)
	if err != nil {
		return err
	}

	conn := textproto.NewConn(tconn)
	controlConn := control.NewConn(conn)

	err = controlConn.Authenticate("penis")
	if err != nil {
		return err
	}

	info, err := controlConn.GetInfo("version")
	if err != nil {
		return err
	}
	fmt.Printf("Got info, %v: %v\n", info[0].Key, info[0].Val)

	taswe, err := controlConn.GetInfo("traffic/read", "traffic/written")
	if err != nil {
		return err
	}
	fmt.Printf("Got traffic/read, %v: %v\n", taswe[0].Key, taswe[0].Val)
	fmt.Printf("Got traffic/written, %v: %v\n", taswe[1].Key, taswe[1].Val)

	_ = controlConn.Close()

	return nil
}