tiagosiebler

const crypto = require('crypto');

const signSecret = process.env.SLACK_SIGN_SECRET;

const validateRequest = (requestSignature, requestTime, rawBody, validFor = 300) => {
  const requestValidFrom = Math.floor(Date.now() / 1000) - validFor;
  if (requestTime < requestValidFrom) {
    throw new Error(`Request outdated: !(${requestTime} < ${requestValidFrom})`);
  }

tiagosiebler

<?php
	/*
	 * This is a PayPal IPN (Instant Payment Notification) broadcaster
	 * Since PayPal does not provide any straightforward way to add
	 * multiple IPN listeners we'll have to create a central IPN
	 * listener that will broadcast (or filter and dispatch) Instant
	 * Payment Notifications to different destinations (IPN listeners)
         *
	 * http://codeseekah.com/2012/02/11/how-to-setup-multiple-ipn-receivers-in-paypal/
         *