package csrf

import (
	"crypto/rand"
	"encoding/base64"
	"fmt"
	"math"
)

func urlRandomBase64String(l int) string {
	buff := make([]byte, int(math.Ceil(float64(l)/float64(1.33333333333))))
	rand.Read(buff)
	str := base64.RawURLEncoding.EncodeToString(buff)
	return str[:l] // strip 1 extra character we get from odd length results
}

func randChars(len int) []byte {
	val := make([]byte, len)
	if _, err := rand.Read(val); err != nil {
		fmt.Println(err)
	}
	return val
}
func SessionRandB64(len int) string {
	val := randChars(len)
	res := base64.StdEncoding.EncodeToString(val)
	return res
}