feat: recognize ens domains (#351)

* feat: recognize ens domains

* refactor: added ens recognition and more tests

* fix: validation mechanism to accept ENS and CIDs

* feat: support non-ascii characters for ENS

* fix: asset summary component to support ENS issue

src/pages/files/Download.tsx

@@ -8,7 +8,7 @@ import { History } from '../../components/History'
 import { Context, defaultUploadOrigin } from '../../providers/File'
 import { Context as SettingsContext } from '../../providers/Settings'
 import { ROUTES } from '../../routes'
-import { recognizeSwarmHash } from '../../utils'
+import { recognizeEnsOrSwarmHash, regexpEns } from '../../utils'
 import { determineHistoryName, HISTORY_KEYS, putHistory } from '../../utils/local-storage'
 import { FileNavigation } from './FileNavigation'
 
@@ -23,10 +23,17 @@ export function Download(): ReactElement {
   const navigate = useNavigate()
 
   const validateChange = (value: string) => {
-    if (Utils.isHexString(value, 64) || Utils.isHexString(value, 128) || !value.trim().length) {
+    if (
+      Utils.isHexString(value, 64) ||
+      Utils.isHexString(value, 128) ||
+      !value.trim().length ||
+      regexpEns.test(value)
+    ) {
       setReferenceError(undefined)
     } else {
-      setReferenceError('Incorrect format of swarm hash. Expected 64 or 128 hexstring characters.')
+      setReferenceError(
+        'Incorrect format of swarm hash. Expected 64 or 128 hexstring characters, bzz.link url or ENS domain.',
+      )
     }
   }
 
@@ -83,7 +90,7 @@ export function Download(): ReactElement {
         confirmLabelDisabled={Boolean(referenceError) || loading}
         placeholder="e.g. 31fb0362b1a42536134c86bc58b97ac0244e5c6630beec3e27c2d1cecb38c605"
         expandedOnly
-        mapperFn={value => recognizeSwarmHash(value)}
+        mapperFn={value => recognizeEnsOrSwarmHash(value)}
         loading={loading}
       />
       <History title="Download History" localStorageKey={HISTORY_KEYS.DOWNLOAD_HISTORY} />