[#534] Updating external instances reachability on incoming federation.

lib/pleroma/web/activity_pub/activity_pub.ex

@@ -750,7 +750,8 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
                [
                  {"Content-Type", "application/activity+json"},
                  {"signature", signature},
-                 {"digest", digest}
+                 {"digest", digest},
+                 {"referer", Pleroma.Web.Endpoint.url()}
                ]
              ) do
       Instances.set_reachable(inbox)

lib/pleroma/web/activity_pub/activity_pub_controller.ex

@@ -4,6 +4,7 @@
 
 defmodule Pleroma.Web.ActivityPub.ActivityPubController do
   use Pleroma.Web, :controller
+
   alias Pleroma.{Activity, User, Object}
   alias Pleroma.Web.ActivityPub.{ObjectView, UserView}
   alias Pleroma.Web.ActivityPub.ActivityPub
@@ -18,6 +19,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubController do
 
   plug(Pleroma.Web.FederatingPlug when action in [:inbox, :relay])
   plug(:relay_active? when action in [:relay])
+  plug(:set_requester_reachable when action in [:inbox])
 
   def relay_active?(conn, _) do
     if Keyword.get(Application.get_env(:pleroma, :instance), :allow_relay) do
@@ -289,4 +291,9 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubController do
     |> put_status(500)
     |> json("error")
   end
+
+  defp set_requester_reachable(conn, _) do
+    Pleroma.Web.ControllerHelper.set_requester_reachable(conn)
+    conn
+  end
 end

lib/pleroma/web/controller_helper.ex

@@ -10,4 +10,9 @@ defmodule Pleroma.Web.ControllerHelper do
     |> put_status(status)
     |> json(json)
   end
+
+  def set_requester_reachable(conn) do
+    with [referer] <- get_req_header(conn, "referer"),
+         do: Pleroma.Instances.set_reachable(referer)
+  end
 end

lib/pleroma/web/ostatus/ostatus_controller.ex

@@ -15,6 +15,8 @@ defmodule Pleroma.Web.OStatus.OStatusController do
   alias Pleroma.Web.ActivityPub.ActivityPub
 
   plug(Pleroma.Web.FederatingPlug when action in [:salmon_incoming])
+  plug(:set_requester_reachable when action in [:salmon_incoming])
+
   action_fallback(:errors)
 
   def feed_redirect(conn, %{"nickname" => nickname}) do
@@ -201,4 +203,9 @@ defmodule Pleroma.Web.OStatus.OStatusController do
     |> put_status(500)
     |> text("Something went wrong")
   end
+
+  defp set_requester_reachable(conn, _) do
+    Pleroma.Web.ControllerHelper.set_requester_reachable(conn)
+    conn
+  end
 end

lib/pleroma/web/salmon/salmon.ex

@@ -173,7 +173,10 @@ defmodule Pleroma.Web.Salmon do
            poster.(
              url,
              feed,
-             [{"Content-Type", "application/magic-envelope+xml"}]
+             [
+               {"Content-Type", "application/magic-envelope+xml"},
+               {"referer", Pleroma.Web.Endpoint.url()}
+             ]
            ) do
       Instances.set_reachable(url)
       Logger.debug(fn -> "Pushed to #{url}, code #{code}" end)

lib/pleroma/web/websub/websub.ex

@@ -275,7 +275,8 @@ defmodule Pleroma.Web.Websub do
              xml,
              [
                {"Content-Type", "application/atom+xml"},
-               {"X-Hub-Signature", "sha1=#{signature}"}
+               {"X-Hub-Signature", "sha1=#{signature}"},
+               {"referer", Pleroma.Web.Endpoint.url()}
              ]
            ) do
       Instances.set_reachable(callback)

lib/pleroma/web/websub/websub_controller.ex

@@ -4,9 +4,11 @@
 
 defmodule Pleroma.Web.Websub.WebsubController do
   use Pleroma.Web, :controller
+
   alias Pleroma.{Repo, User}
   alias Pleroma.Web.{Websub, Federator}
   alias Pleroma.Web.Websub.WebsubClientSubscription
+
   require Logger
 
   plug(
@@ -18,6 +20,8 @@ defmodule Pleroma.Web.Websub.WebsubController do
          ]
   )
 
+  plug(:set_requester_reachable when action in [:websub_incoming])
+
   def websub_subscription_request(conn, %{"nickname" => nickname} = params) do
     user = User.get_cached_by_nickname(nickname)
 
@@ -92,4 +96,9 @@ defmodule Pleroma.Web.Websub.WebsubController do
         |> send_resp(500, "Error")
     end
   end
+
+  defp set_requester_reachable(conn, _) do
+    Pleroma.Web.ControllerHelper.set_requester_reachable(conn)
+    conn
+  end
 end