package main

import (
	"crypto/sha256"
	"encoding/base64"
	"os"
)

// URLToBase64 returns the base64 encoding of the URL parameter
func URLToBase64(URL string) string {
	h := sha256.New()
	h.Write([]byte(URL))
	return base64.URLEncoding.EncodeToString(h.Sum(nil))
}

// FileExists returns true if path exists
func FileExists(path string) bool {
	_, err := os.Stat(path)
	return !os.IsNotExist(err)
}