Normalize locale codes to xx_YY

closes #3969
indico · Jun 12, 2019 · bbfea69 · bbfea69
1 parent 159ce50
commit bbfea69
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/indico/util/i18n.py b/indico/util/i18n.py
@@ -223,6 +223,11 @@ def set_best_lang(check_session=True):
         # fall back to server default
         resolved_lang = config.DEFAULT_LOCALE
 
+    # normalize to xx_YY capitalization
+    resolved_lang = re.sub(r'^([a-zA-Z]+)_([a-zA-Z]+)$',
+                           lambda m: '{}_{}'.format(m.group(1).lower(), m.group(2).upper()),
+                           resolved_lang)
+
     # As soon as we looked up a language, cache it during the request.
     # This will be returned when accessing `session.lang` since there's code
     # which reads the language from there and might fail (e.g. by returning