Add way to disable federation.

config/config.exs

@@ -49,7 +49,8 @@ config :pleroma, :instance,
   name: "Pleroma",
   email: "example@example.com",
   limit: 5000,
-  registrations_open: true
+  registrations_open: true,
+  federating: true
 
 config :pleroma, :media_proxy,
   enabled: false,

lib/pleroma/web/federator/federator.ex

@@ -7,6 +7,8 @@ defmodule Pleroma.Web.Federator do
   @websub Application.get_env(:pleroma, :websub)
   @ostatus Application.get_env(:pleroma, :ostatus)
   @httpoison Application.get_env(:pleroma, :httpoison)
+  @instance Application.get_env(:pleroma, :instance)
+  @federating Keyword.get(@instance, :federating)
   @max_jobs 10
 
   def start_link do
@@ -80,12 +82,14 @@ defmodule Pleroma.Web.Federator do
   end
 
   def enqueue(type, payload, priority \\ 1) do
+    if @federating do
       if Mix.env == :test do
         handle(type, payload)
       else
         GenServer.cast(__MODULE__, {:enqueue, type, payload, priority})
       end
     end
+  end
 
   def maybe_start_job(running_jobs, queue) do
     if (:sets.size(running_jobs) < @max_jobs) && queue != [] do

lib/pleroma/web/router.ex

@@ -3,6 +3,9 @@ defmodule Pleroma.Web.Router do
 
   alias Pleroma.{Repo, User, Web.Router}
 
+  @instance Application.get_env(:pleroma, :instance)
+  @federating Keyword.get(@instance, :federating)
+
   def user_fetcher(username) do
     {:ok, Repo.get_by(User, %{nickname: username})}
   end
@@ -228,21 +231,26 @@ defmodule Pleroma.Web.Router do
     get "/objects/:uuid", OStatus.OStatusController, :object
     get "/activities/:uuid", OStatus.OStatusController, :activity
     get "/notice/:id", OStatus.OStatusController, :notice
-
     get "/users/:nickname/feed", OStatus.OStatusController, :feed
     get "/users/:nickname", OStatus.OStatusController, :feed_redirect
+
+    if @federating do
       post "/users/:nickname/salmon", OStatus.OStatusController, :salmon_incoming
       post "/push/hub/:nickname", Websub.WebsubController, :websub_subscription_request
       get "/push/subscriptions/:id", Websub.WebsubController, :websub_subscription_confirmation
       post "/push/subscriptions/:id", Websub.WebsubController, :websub_incoming
     end
 
+  end
+
+  if @federating do
     scope "/.well-known", Pleroma.Web do
       pipe_through :well_known
 
       get "/host-meta", WebFinger.WebFingerController, :host_meta
       get "/webfinger", WebFinger.WebFingerController, :webfinger
     end
+  end
 
   scope "/", Pleroma.Web.MastodonAPI do
     pipe_through :mastodon_html