Allow IDNs on /dns/

src/controllers/dns.controller.ts

@@ -4,6 +4,8 @@ import isDomainName from "is-domain-name";
 import axios from "axios";
 import getIpInfo from "../functions/getIpInfo";
 import isIp from "is-ip";
+import isIdn from "../functions/isIdn";
+import punycode from "punycode";
 
 const router: Router = Router();
 
@@ -43,6 +45,8 @@ router.get("/:domain", (req: Request, res: Response, next: NextFunction) => {
           });
       })
       .catch(next);
+  } else if(isIdn(req.params.domain)) {
+    res.redirect(`/dns/${punycode.toASCII(req.params.domain)}`)
   } else {
     next();
   }

src/controllers/search.controller.ts

@@ -46,7 +46,7 @@ router.get("/", (req: Request, res: Response, next: NextFunction) => {
           resolver.resolveNs(tld)
             .then(addresses => {
               if(addresses.length > 2) {
-                res.redirect(`/tld/${tld}?from_search=true&orsq=${Buffer.from(query, 'utf8').toString('base64')}`)
+                res.redirect(`/tld/${tld}?from_search=true&orsq=${Buffer.from(query, 'utf8').toString('base64')}`);
               }
             })
             .catch(err => {

src/functions/isIdn.ts

+import punycode from "punycode";
+
+function isIdn(domain: string): boolean {
+  return domain !== punycode.toASCII(domain);
+}
+
+export default isIdn;
\ No newline at end of file