#!/usr/bin/env python3

import glob
import hashlib
import os
import urllib.request


def update_keys(local_user, github_user):
    with urllib.request.urlopen('https://github.com/%s.keys' % github_user) as f:
        keys = f.read().decode('utf-8').strip().splitlines()

    current_keys = glob.glob('keydir/%s@github-*.pub' % local_user)
    for path in current_keys:
        os.remove(path)

    for key in keys:
        m = hashlib.md5()
        m.update(key.encode('utf-8'))

        path = 'keydir/%s@github-%s.pub' % (local_user, m.hexdigest())

        with open(path, 'w+') as f:
            f.write(key)


update_keys('admin', 'GITHUB_USER')