Download all photos from facebook album

console_script.js

function delay(delayInms) {
  return new Promise(resolve => {
    setTimeout(() => {
      resolve();
    }, delayInms);
  });
}

function save(filename, data) {
    const blob = new Blob([data], {type: 'text/csv'});
    if(window.navigator.msSaveOrOpenBlob) {
        window.navigator.msSaveBlob(blob, filename);
    }
    else{
        const elem = window.document.createElement('a');
        elem.href = window.URL.createObjectURL(blob);
        elem.download = filename;        
        document.body.appendChild(elem);
        elem.click();        
        document.body.removeChild(elem);
    }
}

function waitFor(predicate) {
  return new Promise(async (resolve, reject) => {
    for (let i =0; i<10; i++) {
       let result = predicate();
       if (result != null && result.length > 0) {
          resolve(result);
          return;
       }
       await delay(25*i+1);
		}
    reject("Max retries reached");
  });
}

console.clear(); (async () => {
  console.log('starting');
  let totalDLedAlready = 0;
  let _urls = [];
  // TODO(jpr): verify classes
  let els = document.querySelectorAll('i.hu5pjgll.eb18blue')
  try {
    // TODO(jpr): verify page offset
    for (let i =2 + totalDLedAlready; i < els.length; i++) {
      let el = els[i];
      el.scrollIntoView();
      el.click();
      await delay(100);
      let links = await waitFor(() => document.querySelectorAll('a[href*=scontent]'));
      _urls.push(links[links.length-1].getAttribute('href'));
      el.click();
      await delay(100);
    }
    console.log("SUCCESSFUL FINISHED");
  } catch (e) {
    console.error("FAILED with "+ _urls.length +" urls read");
  }

  let s = _urls.reduce((memo, it) => memo + "\n" + it, "")
  save('urls.txt', s);
})()

download_script.sh

while read -r line; do
  fn=$( echo "${line}" | grep -Eo "[^/]+\.jpg")
  curl "${line}" > "${fn}"
 done < <(cat urls_combined.txt | sed 's/&dl=1$//g')