telebit/cmd/signjwt/signjwt.go

113 lines
2.8 KiB
Go

package main
import (
"encoding/base64"
"encoding/hex"
"flag"
"fmt"
"os"
"git.coolaj86.com/coolaj86/go-telebitd/mgmt/authstore"
telebit "git.coolaj86.com/coolaj86/go-telebitd/mplexer"
"github.com/denisbrodbeck/machineid"
_ "github.com/joho/godotenv/autoload"
)
func main() {
var secret, clientSecret, relaySecret string
appID := flag.String("app-id", "", "a unique identifier for a deploy target environment")
authURL := flag.String("auth-url", "", "the base url for authentication, if not the same as the tunnel relay")
machinePPID := flag.Bool("machine-ppid", false, "just print the machine ppid, not the token")
flag.StringVar(&secret, "secret", "", "either the remote server or the tunnel relay secret (used for JWT authentication)")
flag.Parse()
if 0 == len(*authURL) {
*authURL = os.Getenv("AUTH_URL")
}
if 0 == len(*appID) {
*appID = os.Getenv("APP_ID")
}
if 0 == len(*appID) {
*appID = os.Getenv("CLIENT_ID")
}
if 0 == len(*appID) {
*appID = "telebit.io"
}
if 0 == len(secret) {
clientSecret = os.Getenv("CLIENT_SECRET")
relaySecret = os.Getenv("RELAY_SECRET")
if 0 == len(relaySecret) {
relaySecret = os.Getenv("SECRET")
}
}
if 0 == len(secret) {
secret = clientSecret
}
if 0 == len(secret) {
secret = relaySecret
}
if 0 == len(secret) && 0 == len(clientSecret) && 0 == len(relaySecret) {
fmt.Fprintf(os.Stderr, "See usage: signjwt --help\n")
os.Exit(1)
return
} else if 0 != len(clientSecret) && 0 != len(relaySecret) {
fmt.Fprintf(os.Stderr, "Use only one of $SECRET or --relay-secret or --client-secret\n")
os.Exit(1)
return
}
var ppid string
muid, err := machineid.ProtectedID(fmt.Sprintf("%s|%s", *appID, secret))
//muid, err := machineid.ProtectedID(fmt.Sprintf("%s|%s", ClientID, ClientSecret))
if nil != err {
fmt.Fprintf(os.Stderr, "unauthorized device: %s\n", err)
os.Exit(1)
return
}
muidBytes, _ := hex.DecodeString(muid)
ppid = base64.RawURLEncoding.EncodeToString(muidBytes)
fmt.Fprintf(os.Stderr, "[debug] appID = %s\n", *appID)
fmt.Fprintf(os.Stderr, "[debug] secret = %s\n", secret)
pub := authstore.ToPublicKeyString(ppid)
if *machinePPID {
fmt.Fprintf(os.Stderr, "[debug]: <ppid> <pub>\n")
fmt.Fprintf(
os.Stdout,
"%s %s\n",
ppid,
pub,
)
return
}
fmt.Fprintf(os.Stderr, "[debug] ppid = %s\n", ppid)
fmt.Fprintf(os.Stderr, "[debug] pub = %s\n", pub)
tok, err := authstore.HMACToken(ppid)
if nil != err {
fmt.Fprintf(os.Stderr, "signing error: %s\n", err)
os.Exit(1)
return
}
fmt.Fprintf(os.Stderr, "[debug] <token>\n")
fmt.Fprintf(os.Stdout, "%s\n", tok)
if "" != *authURL {
grants, err := telebit.Inspect(*authURL, tok)
if nil != err {
fmt.Fprintf(os.Stderr, "inspect relay token failed:\n%s\n", err)
os.Exit(1)
}
fmt.Fprintf(os.Stderr, "[debug] <grants>\n")
fmt.Fprintf(os.Stderr, "%+v\n", grants)
}
}