4 files changed, 29 insertions, 3 deletions
diff --git a/lib/pleroma/logging.ex b/lib/pleroma/logging.ex
new file mode 100644
index 000000000..37b201c29
--- /dev/null
+++ b/lib/pleroma/logging.ex
@@ -0,0 +1,7 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Logging do
+  @callback error(String.t()) :: any()
+end
diff --git a/lib/pleroma/web/activity_pub/activity_pub.ex b/lib/pleroma/web/activity_pub/activity_pub.ex
index 15f298bb8..3e346d49a 100644
--- a/lib/pleroma/web/activity_pub/activity_pub.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub.ex
@@ -33,6 +33,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
   require Pleroma.Constants
 
   @behaviour Pleroma.Web.ActivityPub.ActivityPub.Persisting
+  @behaviour Pleroma.Web.ActivityPub.ActivityPub.Streaming
 
   defp get_recipients(%{"type" => "Create"} = data) do
     to = Map.get(data, "to", [])
@@ -224,6 +225,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     Streamer.stream("participation", participations)
   end
 
+  @impl true
   def stream_out_participations(%Object{data: %{"context" => context}}, user) do
     with %Conversation{} = conversation <- Conversation.get_for_ap_id(context) do
       conversation = Repo.preload(conversation, :participations)
@@ -240,8 +242,10 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     end
   end
 
+  @impl true
   def stream_out_participations(_, _), do: :noop
 
+  @impl true
   def stream_out(%Activity{data: %{"type" => data_type}} = activity)
       when data_type in ["Create", "Announce", "Delete"] do
     activity
@@ -249,6 +253,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     |> Streamer.stream(activity)
   end
 
+  @impl true
   def stream_out(_activity) do
     :noop
   end
diff --git a/lib/pleroma/web/activity_pub/activity_pub/streaming.ex b/lib/pleroma/web/activity_pub/activity_pub/streaming.ex
new file mode 100644
index 000000000..30009f2fb
--- /dev/null
+++ b/lib/pleroma/web/activity_pub/activity_pub/streaming.ex
@@ -0,0 +1,12 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.ActivityPub.Streaming do
+  alias Pleroma.Activity
+  alias Pleroma.Object
+  alias Pleroma.User
+
+  @callback stream_out(Activity.t()) :: any()
+  @callback stream_out_participations(Object.t(), User.t()) :: any()
+end
diff --git a/lib/pleroma/web/activity_pub/side_effects.ex b/lib/pleroma/web/activity_pub/side_effects.ex
index 55c99ad0c..e37caf6a0 100644
--- a/lib/pleroma/web/activity_pub/side_effects.ex
+++ b/lib/pleroma/web/activity_pub/side_effects.ex
@@ -28,6 +28,8 @@ defmodule Pleroma.Web.ActivityPub.SideEffects do
   require Logger
 
   @cachex Pleroma.Config.get([:cachex, :provider], Cachex)
+  @ap_streamer Pleroma.Config.get([:side_effects, :ap_streamer], ActivityPub)
+  @logger Pleroma.Config.get([:side_effects, :logger], Logger)
 
   @behaviour Pleroma.Web.ActivityPub.SideEffects.Handling
 
@@ -287,12 +289,12 @@ defmodule Pleroma.Web.ActivityPub.SideEffects do
 
             MessageReference.delete_for_object(deleted_object)
 
-            ActivityPub.stream_out(object)
-            ActivityPub.stream_out_participations(deleted_object, user)
+            @ap_streamer.stream_out(object)
+            @ap_streamer.stream_out_participations(deleted_object, user)
             :ok
           else
             {:actor, _} ->
-              Logger.error("The object doesn't have an actor: #{inspect(deleted_object)}")
+              @logger.error("The object doesn't have an actor: #{inspect(deleted_object)}")
               :no_object_actor
           end