Refactor, add beginnings of websub client subscriptions.

lib/pleroma/web/federator/federator.ex

@@ -0,0 +1,32 @@
+defmodule Pleroma.Web.Federator do
+  alias Pleroma.User
+  require Logger
+
+  @websub_verifier Application.get_env(:pleroma, :websub_verifier)
+
+  def handle(:publish, activity) do
+    Logger.debug("Running publish for #{activity.data["id"]}")
+    with actor when not is_nil(actor) <- User.get_cached_by_ap_id(activity.data["actor"]) do
+      Pleroma.Web.Websub.publish(Pleroma.Web.OStatus.feed_path(actor), actor, activity)
+    end
+  end
+
+  def handle(:verify_websub, websub) do
+    Logger.debug("Running websub verification for #{websub.id} (#{websub.topic}, #{websub.callback})")
+    @websub_verifier.verify(websub)
+  end
+
+  def handle(type, payload) do
+    Logger.debug("Unknown task: #{type}")
+    {:error, "Don't know what do do with this"}
+  end
+
+  def enqueue(type, payload) do
+    # for now, just run immediately in a new process.
+    if Mix.env == :test do
+      handle(type, payload)
+    else
+      spawn(fn -> handle(type, payload) end)
+    end
+  end
+end