activitypub: utils: add determine_explicit_mentions() and tests

[akkoma] / lib / pleroma / web / activity_pub / utils.ex

diff --git a/lib/pleroma/web/activity_pub/utils.ex b/lib/pleroma/web/activity_pub/utils.ex
index d2e457a680e289278fd90d9b4e5c485b744c2807..d516818d9faf0e97fcc522a293b1e76bdcec5227 100644 (file)
--- a/lib/pleroma/web/activity_pub/utils.ex
+++ b/lib/pleroma/web/activity_pub/utils.ex
@@ -25,6 +25,20 @@ defmodule Pleroma.Web.ActivityPub.Utils do
     Map.put(params, "actor", get_ap_id(params["actor"]))
   end
 
+  def determine_explicit_mentions(%{"tag" => tag} = _object) when is_list(tag) do
+    tag
+    |> Enum.filter(fn x -> is_map(x) end)
+    |> Enum.filter(fn x -> x["type"] == "Mention" end)
+    |> Enum.map(fn x -> x["href"] end)
+  end
+
+  def determine_explicit_mentions(%{"tag" => tag} = object) when is_map(tag) do
+    Map.put(object, "tag", [tag])
+    |> determine_explicit_mentions()
+  end
+
+  def determine_explicit_mentions(_), do: []
+
   defp recipient_in_collection(ap_id, coll) when is_binary(coll), do: ap_id == coll
   defp recipient_in_collection(ap_id, coll) when is_list(coll), do: ap_id in coll
   defp recipient_in_collection(_, _), do: false