https://ehnzo.vercel.app/allnations/js/utils/normalize.js

1export function normalizeName(value) {
2  return String(value)
3    .normalize('NFD')
4    .replace(/[\u0300-\u036f]/g, '')
5    .replace(/[^a-z0-9]+/gi, '')
6    .toLowerCase();
7}
8
9export function escHtml(str) {
10  return String(str || '')
11    .replace(/&/g, '&')
12    .replace(/"/g, '"')
13    .replace(/</g, '&lt;')
14    .replace(/>/g, '&gt;');
15}
16
17export function safe(str) {
18  if (str === null || str === undefined) return '';
19  return String(str)
20    .replace(/&/g, '&amp;')
21    .replace(/</g, '&lt;')
22    .replace(/>/g, '&gt;')
23    .replace(/"/g, '&quot;')
24    .replace(/'/g, '&#x27;')
25    .replace(/\//g, '&#x2F;');
26}
27
28const ALLOWED_IMAGE_DOMAINS = [
29  'flagcdn.com',
30  'raw.githubusercontent.com',
31  'olborwfuotqrzpuvwnhu.supabase.co',
32  'upload.wikimedia.org',
33];
34
35export function isAllowedImageUrl(url) {
36  if (!url) return false;
37  try {
38    const parsed = new URL(url);
39    if (parsed.protocol !== 'https:') return false;
40    return ALLOWED_IMAGE_DOMAINS.some(domain =>
41      parsed.hostname === domain || parsed.hostname.endsWith('.' + domain)
42    );
43  } catch {
44    return false;
45  }
46}