1 files changed, 13 insertions, 0 deletions
diff --git a/src/services/entity_normalizer/entity_normalizer.service.js b/src/services/entity_normalizer/entity_normalizer.service.js
index b1e68df5..625f593e 100644
--- a/src/services/entity_normalizer/entity_normalizer.service.js
+++ b/src/services/entity_normalizer/entity_normalizer.service.js
@@ -1,6 +1,7 @@
 import escape from 'escape-html'
 import parseLinkHeader from 'parse-link-header'
 import { isStatusNotification } from '../notification_utils/notification_utils.js'
+import punycode from 'punycode.js'
 
 /** NOTICE! **
  * Do not initialize UI-generated data here.
@@ -197,6 +198,18 @@ export const parseUser = (data) => {
   output.rights = output.rights || {}
   output.notification_settings = output.notification_settings || {}
 
+  // Convert punycode to unicode
+  if (output.screen_name.includes('@')) {
+    const parts = output.screen_name.split('@')
+    let unicodeDomain = punycode.toUnicode(parts[1])
+    if (unicodeDomain !== parts[1]) {
+      // Add some identifier so users can potentially spot spoofing attempts:
+      // lain.com and xn--lin-6cd.com would appear identical otherwise.
+      unicodeDomain = '🌏' + unicodeDomain
+      output.screen_name = [parts[0], unicodeDomain].join('@')
+    }
+  }
+
   return output
 }