const crypto = require('crypto'); function randomToken(length) { return crypto.randomBytes(length).toString('base64'); } function newNoteId() { return randomString(32, '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'); } function randomString(length, chars) { let result = ''; for (let i = length; i > 0; --i) { result += chars[Math.floor(Math.random() * chars.length)]; } return result; } function nowTimestamp() { return Math.floor(Date.now() / 1000); } function toBase64(plainText) { return Buffer.from(plainText).toString('base64'); } function fromBase64(encodedText) { return Buffer.from(encodedText, 'base64'); } module.exports = { randomToken, nowTimestamp, newNoteId, toBase64, fromBase64 };