From 7b3ce8d8124bf75f21b3ab4a192ae39d77fc7326 Mon Sep 17 00:00:00 2001
From: Thomas Citharel <tcit@tcit.fr>
Date: Thu, 21 Apr 2022 14:55:30 +0200
Subject: [PATCH] Avoid duplicate tags with different casing
Closes #562
Signed-off-by: Thomas Citharel <tcit@tcit.fr>
---
lib/federation/activity_pub/types/events.ex | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/lib/federation/activity_pub/types/events.ex b/lib/federation/activity_pub/types/events.ex
index d6bc9113c..2016a417c 100644
--- a/lib/federation/activity_pub/types/events.ex
+++ b/lib/federation/activity_pub/types/events.ex
@@ -281,6 +281,21 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Events do
args
end
+ # Make sure we don't have duplicate (with different casing) tags
+ args =
+ Map.update(
+ args,
+ :tags,
+ [],
+ &Enum.uniq_by(&1, fn tag ->
+ case tag do
+ # For some reason transmogrifier gives us this
+ %{title: tag} -> String.downcase(tag)
+ tag -> String.downcase(tag)
+ end
+ end)
+ )
+
# Check that we can only allow anonymous participation if our instance allows it
{_, options} =
Map.get_and_update(