3 var base64url = module.exports;
5 base64url.unescape = function unescape (str) {
6 return (str + Array(5 - str.length % 4)
12 base64url.escape = function escape (str) {
13 return str.replace(/\+/g, '-')
18 base64url.encode = function encode (str) {
19 return this.escape(new Buffer(str).toString('base64'));
22 base64url.decode = function decode (str) {
23 return new Buffer(this.unescape(str), 'base64').toString();