Gather GMail Images

download_images.js

(alreadySeen => {
function downloadURI(uri) {
    console.log('trying to download')
    var link = document.createElement("a");
    link.download = name;
    link.href = uri;
    link.click();
  return new Promise(resolve => setTimeout(resolve, 2000 + Math.round(Math.random() * 1000)))
}

const images = [...document.querySelectorAll('img')]
images.reduce((promise, img, index) => {
  return promise.then(() => {
    const url = new URL(img.src)
    if (url.host === 'mail.google.com' && !alreadySeen.has(url.href)) {
        alreadySeen.add(url.href)
        url.searchParams.set('sz', 'w10000-h10000')
        return downloadURI(url.href, `image${index}.jpg`)
    }
  }).catch(() => Promise.resolve())
}, Promise.resolve())
})(window.__alreadySeen = window.__alreadySeen || new Set())