Function randIntn

auth/token.go:18–25

(n int)

)

func randIntn(n int) int {
	max := big.NewInt(int64(n))
	res, err := rand.Int(randReader, max)
	if err != nil {
		panic("random source is not available")
	}
	return int(res.Int64())
}

// GenerateNotExistingToken receives a token generation func and a func to check whether the token exists, returns a unique token.
func GenerateNotExistingToken(generateToken func() string, tokenExists func(token string) bool) string {