index.js

const https = require('https');

const username = process.argv[2];

if (!username) {
  console.log('Usage: node index.js <github-username>');
  process.exit(1);
}

const fetch = (url) => {
  return new Promise((resolve, reject) => {
    const urlObj = new URL(url);
    https.get({
      hostname: urlObj.hostname,
      path: urlObj.pathname + urlObj.search,
      headers: { 'User-Agent': 'Node.js' }
    }, (res) => {
      if (res.statusCode === 301 || res.statusCode === 302) {
        return fetch(res.headers.location).then(resolve).catch(reject);
      }
      let data = '';
      res.on('data', chunk => data += chunk);
      res.on('end', () => resolve({ ok: res.statusCode === 200, data }));
    }).on('error', reject);
  });
};

const cleanEmail = (email) => email.replace(/['"]/g, '').trim().toLowerCase();

const extractEmails = (patch) => {
  const matches = patch.match(/^From: .+ <(.+)>/gm) || [];
  return matches.map(m => cleanEmail(m.match(/<(.+)>/)?.[1] || '')).filter(Boolean);
};

const delay = (ms) => new Promise(r => setTimeout(r, ms));

const main = async () => {
  const emails = new Set();
  const seen = new Set();

  // Scan events
  for (let p = 1; p <= 10; p++) {
    const res = await fetch(`https://api.github.com/users/${username}/events/public?per_page=100&page=${p}`);
    if (!res.ok) break;
    const events = JSON.parse(res.data);
    if (!events.length) break;

    for (const e of events) {
      if (e.type !== 'PushEvent') continue;
      for (const c of e.payload?.commits || []) {
        if (seen.has(c.sha)) continue;
        seen.add(c.sha);
        try {
          const patch = await fetch(`https://github.com/${e.repo?.name}/commit/${c.sha}.patch`);
          if (patch.ok) extractEmails(patch.data).forEach(x => emails.add(x));
        } catch {}
        await delay(50);
      }
    }
  }

  // Scan repos
  const repos = await fetch(`https://api.github.com/users/${username}/repos?per_page=100`);
  if (repos.ok) {
    for (const repo of JSON.parse(repos.data).filter(r => !r.fork)) {
      for (let p = 1; p <= 5; p++) {
        const res = await fetch(`https://api.github.com/repos/${username}/${repo.name}/commits?per_page=100&page=${p}`);
        if (!res.ok) break;
        const commits = JSON.parse(res.data);
        if (!commits.length) break;

        for (const c of commits) {
          if (seen.has(c.sha)) continue;
          seen.add(c.sha);
          try {
            const patch = await fetch(`https://github.com/${username}/${repo.name}/commit/${c.sha}.patch`);
            if (patch.ok) extractEmails(patch.data).forEach(x => emails.add(x));
          } catch {}
          await delay(50);
        }
      }
    }
  }

  console.log([...emails].sort().join('\n') || 'No emails found');
};

main().catch(console.error);