MediaRemovalPerActor policy

lib/pleroma/web/activity_pub/mrf/ex_nihilo_nihil_fit.ex

@@ -54,13 +54,6 @@ defmodule Pleroma.Web.ActivityPub.MRF.ExNihiloNihilFit do
     end
   end
 
-  @impl true
-  def filter(%{"actor" => actor} = object) do
-    with {:ok, object} <- check_avatar_rewrite(actor, object) do
-      {:ok, object}
-    end
-  end
-
   @impl true
   def filter(%{"id" => actor, "type" => obj_type} = object)
       when obj_type in ["Application", "Group", "Organization", "Person", "Service"] do

lib/pleroma/web/activity_pub/mrf/media_removal_per_actor.ex

@@ -0,0 +1,61 @@
+defmodule Pleroma.Web.ActivityPub.MRF.MediaRemovalPerActor do
+  @moduledoc "Removes media per actor (replaces TagPolicy due to its lack of transparency)"
+  @behaviour Pleroma.Web.ActivityPub.MRF.Policy
+
+  defp check_profile_media_removal(actor, object) do
+    if Enum.member?(Pleroma.Config.get([:mrf_media_removal_per_actor, :actors]), actor) do
+      {:ok, Map.delete(Map.delete(object, "icon"), "image")}
+    else
+      {:ok, object}
+    end
+  end
+
+  defp check_media_removal(actor, object) do
+    if Enum.member?(Pleroma.Config.get([:mrf_media_removal_per_actor, :actors]), actor) do
+      {:ok, Map.delete(object, "attachment")}
+    else
+      {:ok, object}
+    end
+  end
+
+  @impl true
+  def filter(%{"actor" => actor} = object) do
+    with {:ok, object} <- check_media_removal(actor, object) do
+      {:ok, object}
+    end
+  end
+
+  @impl true
+  def filter(%{"id" => actor, "type" => obj_type} = object)
+      when obj_type in ["Application", "Group", "Organization", "Person", "Service"] do
+    with {:ok, object} <- check_profile_media_removal(actor, object) do
+      {:ok, object}
+    end
+  end
+
+  @impl true
+  def describe do
+    {:ok,
+      %{mrf_media_removal_per_actor:
+        %{actors: Pleroma.Config.get([:mrf_media_removal_per_actor, :actors])}
+      }
+    }
+  end
+
+  @impl true
+  def config_description do
+    %{
+      key: :mrf_media_removal_per_actor,
+      related_policy: "Pleroma.Web.ActivityPub.MRF.MediaRemovalPerActor",
+      description: "Removes media per actor",
+      children: [
+        %{
+          key: :actors,
+          type: {:list, :string},
+          label: "List of affected actors",
+          suggestions: ["https://instance.tld/users/pedophile"]
+        }
+      ]
+    }
+  end
+end