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path: root/cmd/goxyctl/main.go
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package main

import (
	"flag"
	"io/ioutil"
	"log"
	"net/rpc"

	"dim13.org/goxy"
)

var (
	rpcserver  = flag.String("server", ":http-alt", "RPC Server port")
	servername = flag.String("host", "", "ServerName")
	upstream   = flag.String("upstream", "", "Upstream URL")
	keyfile    = flag.String("key", "", "TLS Key file")
	certfile   = flag.String("cert", "", "TLS Cert file")
	remove     = flag.Bool("remove", false, "Remove route")
)

func loadCert(certFile, keyFile string) ([]byte, []byte) {
	if certFile == "" || keyFile == "" {
		return nil, nil
	}
	cert, err := ioutil.ReadFile(certFile)
	if err != nil {
		log.Fatal(err)
	}
	key, err := ioutil.ReadFile(keyFile)
	if err != nil {
		log.Fatal(err)
	}
	return cert, key
}

func send(server string, e goxy.Entry, del bool) error {
	client, err := rpc.DialHTTP("tcp", server)
	if err != nil {
		return err
	}
	defer client.Close()

	switch {
	case e.ServerName != "" && e.Upstream != "":
		log.Println("Add", e)
		return client.Call("GoXY.Add", e, nil)
	case e.ServerName != "" && del:
		log.Println("Del", e)
		return client.Call("GoXY.Del", e, nil)
	default:
		var r goxy.Route
		err = client.Call("GoXY.List", struct{}{}, &r)
		if err != nil {
			return err
		}
		for k, v := range r {
			log.Println(k, v)
		}
	}
	return nil
}

func main() {
	var e goxy.Entry
	flag.Parse()

	e.ServerName, e.Upstream = *servername, *upstream
	e.Cert, e.Key = loadCert(*certfile, *keyfile)

	if err := send(*rpcserver, e, *remove); err != nil {
		log.Fatal(err)
	}
}