Zenfolio photo downloader

zenfolio-photo-downloader.js

(async () => {
  const link = document.createElement('a');
  document.body.appendChild(link);
  
  // loop through matching images
  for (const image of document.querySelectorAll('.pv-inner img:first-child')) {
    const path = image.style.backgroundImage.split('"')[1].replace(/-\d.jpg/, '-5.jpg');
    // filename of the image
    link.download = new URL(path).pathname.replace(/^.*\//, '');
    // fetch the image, convert it to a data URL, set as the href of the link element
    link.href = await fetch(path)
      .then(response => response.blob())
      .then(blob => new Promise(resolve => {
        const reader = new FileReader() ;
        reader.onload = () => resolve(reader.result);
        reader.readAsDataURL(blob);
      }));
    // trigger the link to download the image
    link.click();
  }
  
  // cleanup
  document.body.removeChild(link);
})();