Handle subscriptions in queue.

lib/pleroma/web/federator/federator.ex

@@ -26,6 +26,15 @@ def handle(:refresh_subscriptions, _) do
     end)
   end
 
+  def handle(:request_subscription, websub) do
+    Logger.debug("Refreshing #{websub.topic}")
+    with {:ok, websub } <- Websub.request_subscription(websub) do
+      Logger.debug("Successfully refreshed #{websub.topic}")
+    else
+      _e -> Logger.debug("Couldn't refresh #{websub.topic}")
+    end
+  end
+
   def handle(:publish, activity) do
     Logger.debug(fn -> "Running publish for #{activity.data["id"]}" end)
     with actor when not is_nil(actor) <- User.get_cached_by_ap_id(activity.data["actor"]) do

lib/pleroma/web/websub/websub.ex

@@ -216,8 +216,8 @@ def refresh_subscriptions(delta \\ 60 * 60 * 24) do
 
     subs = Repo.all(query)
 
-    Enum.map(subs, fn (sub) ->
-      request_subscription(sub)
+    Enum.each(subs, fn (sub) ->
+      Pleroma.Web.Federator.enqueue(:request_subscription, sub)
     end)
   end
 end