From 33e7ae7637236b859bfabc9016a86e4bbe1e0632 Mon Sep 17 00:00:00 2001
From: FloatingGhost <hannah@coffee-and-dreams.uk>
Date: Mon, 17 Jul 2023 20:03:31 +0100
Subject: [PATCH] Allow nil attachments

---
 lib/pleroma/web/activity_pub/transmogrifier.ex | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/lib/pleroma/web/activity_pub/transmogrifier.ex b/lib/pleroma/web/activity_pub/transmogrifier.ex
index 5c96bf060..742dcb385 100644
--- a/lib/pleroma/web/activity_pub/transmogrifier.ex
+++ b/lib/pleroma/web/activity_pub/transmogrifier.ex
@@ -919,9 +919,13 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
   end
 
   def prepare_attachments(object) do
+    attachments = case Map.get(object, "attachment", []) do
+      [_ | _] = list -> list
+      _ -> []
+    end
+    
     attachments =
-      object
-      |> Map.get("attachment", [])
+      attachments
       |> Enum.map(fn data ->
         [%{"mediaType" => media_type, "href" => href} = url | _] = data["url"]