netbird/cmd/init.go
2021-05-01 15:51:02 +02:00

115 lines
3.5 KiB
Go

package cmd
import (
"github.com/pion/ice/v2"
log "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
"os"
"strings"
)
var (
wgKey string
wgInterface string
wgLocalAddr string
signalAddr string
stunURLs string
turnURLs string
initCmd = &cobra.Command{
Use: "init",
Short: "init wiretrustee",
Run: func(cmd *cobra.Command, args []string) {
InitLog(logLevel)
if _, err := os.Stat(configPath); !os.IsNotExist(err) {
log.Warnf("config already exists under path %s", configPath)
os.Exit(ExitSetupFailed)
}
if wgKey == "" {
wgKey = generateKey()
}
var stunTurnURLs []*ice.URL
stuns := strings.Split(stunURLs, ",")
for _, url := range stuns {
parsedURL, err := ice.ParseURL(url)
if err != nil {
log.Errorf("failed parsing STUN URL %s: %s", url, err.Error())
os.Exit(ExitSetupFailed)
}
stunTurnURLs = append(stunTurnURLs, parsedURL)
}
turns := strings.Split(turnURLs, ",")
for _, url := range turns {
var urlToParse string
var user string
var pwd string
//extract user:password from user:password@proto:host:port
urlSplit := strings.Split(url, "@")
if len(urlSplit) == 2 {
urlToParse = urlSplit[1]
credential := strings.Split(urlSplit[0], ":")
user = credential[0]
pwd = credential[1]
} else {
urlToParse = url
}
parsedURL, err := ice.ParseURL(urlToParse)
if err != nil {
log.Errorf("failed parsing TURN URL %s: %s", url, err.Error())
os.Exit(ExitSetupFailed)
}
parsedURL.Username = user
parsedURL.Password = pwd
stunTurnURLs = append(stunTurnURLs, parsedURL)
}
config := &Config{
PrivateKey: wgKey,
Peers: nil,
StunTurnURLs: stunTurnURLs,
SignalAddr: signalAddr,
WgAddr: wgLocalAddr,
WgIface: wgInterface,
}
err := config.Write(configPath)
if err != nil {
log.Errorf("failed writing config to %s: %s", config, err.Error())
os.Exit(ExitSetupFailed)
}
},
}
)
func init() {
initCmd.PersistentFlags().StringVar(&wgKey, "wgKey", "", "Wireguard private key, if not specified a new one will be generated")
initCmd.PersistentFlags().StringVar(&wgInterface, "wgInterface", "wiretrustee0", "Wireguard interface name, e.g. wiretreustee0 or wg0")
initCmd.PersistentFlags().StringVar(&wgLocalAddr, "wgLocalAddr", "", "Wireguard local address, e.g. 10.30.30.1/24")
initCmd.PersistentFlags().StringVar(&signalAddr, "signalAddr", "", "Signal server address, e.g. signal.wiretrustee.com:10000")
initCmd.PersistentFlags().StringVar(&stunURLs, "stunURLs", "", "Comma separated STUN server URLs: protocol:host:port, e.g. stun:stun.l.google.com:19302,stun:stun1.l.google.com:19302")
//todo user:password@protocol:host:port not the best way to pass TURN credentials, do it according to https://tools.ietf.org/html/rfc7065 E.g. use oauth
initCmd.PersistentFlags().StringVar(&turnURLs, "turnURLs", "", "Comma separated TURN server URLs: user:password@protocol:host:port, e.g. user:password@turn:stun.wiretrustee.com:3468")
//initCmd.MarkPersistentFlagRequired("configPath")
initCmd.MarkPersistentFlagRequired("wgLocalAddr")
initCmd.MarkPersistentFlagRequired("signalAddr")
initCmd.MarkPersistentFlagRequired("stunURLs")
initCmd.MarkPersistentFlagRequired("turnURLs")
}
// generateKey generates a new Wireguard private key
func generateKey() string {
key, err := wgtypes.GenerateKey()
if err != nil {
panic(err)
}
return key.String()
}