bundlestars_bulk_keys.user.js

// ==UserScript==
// @name        Reveal and Copy Steam Keys
// @namespace   http://jnv.github.io
// @include     https://www.bundlestars.com/*/orders/*
// @version     1
// @grant       none
// @domain      www.bundlestars.com
// @run-at      document-idle
// ==/UserScript==

const BUNDLE_STARS_REDEEM_SEL = '.hidden-xs [ng-click^=redeemSerial]'
const BUNDLE_STARS_KEY_SEL = '.hidden-xs [ng-model="game.key"]'
const KEYS_EL_ID = 'userscript-injected-textarea'
function bundleStarsRedeem () {
  document.querySelectorAll(BUNDLE_STARS_REDEEM_SEL).forEach(el => el.click())
}
function bundleStartsDisplayKeys () {
  const inputs = Array.from(document.querySelectorAll(BUNDLE_STARS_KEY_SEL))
  const keys = inputs.map(el => el.value).join('\r\n')
  console.log(keys)
  if (keys) {
    injectKeys(keys)
  }
}

function injectKeys (keys) {
  let txt = document.getElementById(KEYS_EL_ID)
  if (!txt) {
    txt = document.createElement('textarea')
    txt.id = KEYS_EL_ID
    txt.style = 'position: fixed; left: 0; top: 0; z-index: 999999; color: #000 !important; background: #fff !important;'
    document.body.appendChild(txt)
  }
  txt.value = keys
  txt.setAttribute('readonly', 'readonly')
}

window.setTimeout(bundleStartsDisplayKeys, 3000)