/
jwx-tool.go
78 lines (55 loc) · 1.13 KB
/
jwx-tool.go
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package main
import (
"bufio"
"encoding/json"
"flag"
"fmt"
"io/ioutil"
"os"
"strings"
jwt "github.com/dgrijalva/jwt-go"
)
var (
action *bool = flag.Bool("d", false, "is decode?")
)
func handleError(e error) {
fmt.Println(e)
os.Exit(1)
}
func main() {
flag.Parse()
secret := flag.Arg(0)
reader := bufio.NewReader(os.Stdin)
// decode
if *action {
s, err := ioutil.ReadAll(reader)
if err != nil {
handleError(err)
}
token, err := jwt.Parse(strings.TrimSpace(string(s)), func(t *jwt.Token) (interface{}, error) {
if _, ok := t.Method.(*jwt.SigningMethodHMAC); !ok {
return nil, fmt.Errorf("不予許的加密算法 %s \n", t.Header["alg"])
}
return []byte(secret), nil
})
if err != nil {
handleError(err)
}
result, err := json.Marshal(token.Claims)
if err != nil {
handleError(err)
}
fmt.Println(string(result))
} else {
build := jwt.New(jwt.SigningMethodHS256)
err := json.NewDecoder(reader).Decode(&build.Claims)
if err != nil {
handleError(err)
}
token, err := build.SignedString([]byte(secret))
if err != nil {
handleError(err)
}
fmt.Println(token)
}
}