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util.js
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util.js
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'use strict';
const crc = require('crc').crc32;
module.exports = {
/**
* Decode the base64 cookie value to an object.
*
* @param {String} string
* @return {Object}
* @api private
*/
decode(string) {
const body = Buffer.alloc(Buffer.byteLength(string, 'base64'), string, 'base64').toString('utf8');
const json = JSON.parse(body);
return json;
},
/**
* Encode an object into a base64-encoded JSON string.
*
* @param {Object} body
* @return {String}
* @api private
*/
encode(body) {
body = JSON.stringify(body);
return Buffer.alloc(Buffer.byteLength(body), body).toString('base64');
},
hash(sess) {
return crc(JSON.stringify(sess));
},
};