Calendar events and iCal feeds

aleksis/core/views.py

-from io import BytesIO
 from textwrap import wrap
 from typing import Any, Dict, Optional, Type
 from urllib.parse import urlencode, urlparse, urlunparse
@@ -1523,13 +1522,15 @@ class CustomAuthorizationView(AuthorizationView):
 
 
 class ICalFeedView(PermissionRequiredMixin, View):
+    """View to generate an iCal feed for a calendar."""
+
     permission_required = "core.view_calendar_feed_rule"
 
     def get(self, request, name, *args, **kwargs):
         if name in CalendarEventMixin.registered_objects_dict:
             calendar = CalendarEventMixin.registered_objects_dict[name]
             feed = calendar.create_feed(request)
-            ical_file = BytesIO()
-            feed.write(ical_file, "utf-8")
-            return HttpResponse(ical_file.getvalue(), content_type="text/calendar")
+            response = HttpResponse(content_type="text/calendar")
+            feed.write(response, "utf-8")
+            return response
         raise Http404