Scrape + Download Google Classroom Files [Script]

scrape_download_drive_files_google_classroom.js

// 📌 Paste in browser console on a loaded Classroom page like: https://classroom.google.com/u/1/c/xxxxx

// Step 1: Scroll to bottom to load all content
while (await new Promise(r => setTimeout(r, 1500, scrollTo(0, h = document.body.scrollHeight))) || h != document.body.scrollHeight);

// Step 2: Get current authuser (from /u/1/ in URL)
const authuser = location.pathname.match(/\/u\/(\d+)/)?.[1] || '0';

// Step 3: Extract unique file IDs
const ids = [...new Set([...document.querySelectorAll('a[href*="drive.google.com/file/d/"]')]
  .map(a => a.href.match(/\/file\/d\/([^/?]+)/)?.[1])
  .filter(Boolean))];

// Step 4: Display original and download links + filename
const entries = ids.map((id, i) => {
  const fileView = `https://drive.google.com/file/d/${id}?authuser=${authuser}`;
  const fileDownload = `https://drive.google.com/uc?export=download&id=${id}&authuser=${authuser}`;

  const a = [...document.querySelectorAll(`a[href*="${id}"]`)][0];
  const name = a?.getAttribute('aria-label')?.match(/Attachment:.*?:\s*(.*)$/)?.[1]
            || a?.textContent?.trim().match(/[\w\s.-]+\.(pptx|pdf|docx|xlsx|txt|zip)/i)?.[0]
            || 'NO NAME';

  console.log(`${i + 1}. ${fileView} (view)`);
  console.log(`    ${fileDownload} (download) — ${name}`);

  return fileDownload;
});

// Step 5: Open all file download links in staggered tabs (1 per second) (they auto close)
// Also Allow Popups from Site Settings If Blocked
entries.forEach((url, i) => {
  setTimeout(() => window.open(url, '_blank'), i * 1000);
});