activitypub: transmogrifier: accept remote Flag activities

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

diff --git a/lib/pleroma/web/activity_pub/relay.ex b/lib/pleroma/web/activity_pub/relay.ex
index 736d0e406b8cb3f7a8c29ba5b1b9e28d03ccb07c..01fef71b9c2db04df59219eb647772f53dbf07d9 100644 (file)
--- a/lib/pleroma/web/activity_pub/relay.ex
+++ b/lib/pleroma/web/activity_pub/relay.ex
@@ -1,7 +1,52 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Web.ActivityPub.Relay do
+  alias Pleroma.Activity
+  alias Pleroma.Object
   alias Pleroma.User
+  alias Pleroma.Web.ActivityPub.ActivityPub
+  require Logger
 
   def get_actor do
     User.get_or_create_instance_user()
   end
+
+  def follow(target_instance) do
+    with %User{} = local_user <- get_actor(),
+         %User{} = target_user <- User.get_or_fetch_by_ap_id(target_instance),
+         {:ok, activity} <- ActivityPub.follow(local_user, target_user) do
+      Logger.info("relay: followed instance: #{target_instance}; id=#{activity.data["id"]}")
+      {:ok, activity}
+    else
+      e ->
+        Logger.error("error: #{inspect(e)}")
+        {:error, e}
+    end
+  end
+
+  def unfollow(target_instance) do
+    with %User{} = local_user <- get_actor(),
+         %User{} = target_user <- User.get_or_fetch_by_ap_id(target_instance),
+         {:ok, activity} <- ActivityPub.unfollow(local_user, target_user) do
+      Logger.info("relay: unfollowed instance: #{target_instance}: id=#{activity.data["id"]}")
+      {:ok, activity}
+    else
+      e ->
+        Logger.error("error: #{inspect(e)}")
+        {:error, e}
+    end
+  end
+
+  def publish(%Activity{data: %{"type" => "Create"}} = activity) do
+    with %User{} = user <- get_actor(),
+         %Object{} = object <- Object.normalize(activity.data["object"]["id"]) do
+      ActivityPub.announce(user, object, nil, true, false)
+    else
+      e -> Logger.error("error: #{inspect(e)}")
+    end
+  end
+
+  def publish(_), do: nil
 end