From cf9cb953d5c341bb13e4b86272ff4ef405aeab92 Mon Sep 17 00:00:00 2001
From: Ariadne Conill <ariadne@dereferenced.org>
Date: Wed, 17 Jul 2019 17:34:57 +0000
Subject: [PATCH] activitypub: represent internal fetch actor

---
 .../web/activity_pub/activity_pub_controller.ex     |  6 ++++++
 lib/pleroma/web/activity_pub/views/user_view.ex     | 13 ++++++++++---
 lib/pleroma/web/router.ex                           | 13 +++++++++++--
 3 files changed, 27 insertions(+), 5 deletions(-)

diff --git a/lib/pleroma/web/activity_pub/activity_pub_controller.ex b/lib/pleroma/web/activity_pub/activity_pub_controller.ex
index dc9ef066d..133a726c5 100644
--- a/lib/pleroma/web/activity_pub/activity_pub_controller.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub_controller.ex
@@ -10,6 +10,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubController do
   alias Pleroma.Object.Fetcher
   alias Pleroma.User
   alias Pleroma.Web.ActivityPub.ActivityPub
+  alias Pleroma.Web.ActivityPub.InternalFetchActor
   alias Pleroma.Web.ActivityPub.ObjectView
   alias Pleroma.Web.ActivityPub.Relay
   alias Pleroma.Web.ActivityPub.Transmogrifier
@@ -223,6 +224,11 @@ def relay(conn, _params) do
     |> represent_service_actor(conn)
   end
 
+  def internal_fetch(conn, _params) do
+    InternalFetchActor.get_actor()
+    |> represent_service_actor(conn)
+  end
+
   def whoami(%{assigns: %{user: %User{} = user}} = conn, _params) do
     conn
     |> put_resp_header("content-type", "application/activity+json")
diff --git a/lib/pleroma/web/activity_pub/views/user_view.ex b/lib/pleroma/web/activity_pub/views/user_view.ex
index d9c1bcb2c..639519e0a 100644
--- a/lib/pleroma/web/activity_pub/views/user_view.ex
+++ b/lib/pleroma/web/activity_pub/views/user_view.ex
@@ -31,8 +31,7 @@ def render("endpoints.json", %{user: %User{local: true} = _user}) do
 
   def render("endpoints.json", _), do: %{}
 
-  # the instance itself is not a Person, but instead an Application
-  def render("user.json", %{user: %{nickname: nil} = user}) do
+  def render("service.json", %{user: user}) do
     {:ok, user} = User.ensure_keys_present(user)
     {:ok, _, public_key} = Keys.keys_from_pem(user.info.keys)
     public_key = :public_key.pem_entry_encode(:SubjectPublicKeyInfo, public_key)
@@ -47,7 +46,8 @@ def render("user.json", %{user: %{nickname: nil} = user}) do
       "followers" => "#{user.ap_id}/followers",
       "inbox" => "#{user.ap_id}/inbox",
       "name" => "Pleroma",
-      "summary" => "Virtual actor for Pleroma relay",
+      "summary" =>
+        "An internal service actor for this Pleroma instance.  No user-serviceable parts inside.",
       "url" => user.ap_id,
       "manuallyApprovesFollowers" => false,
       "publicKey" => %{
@@ -60,6 +60,13 @@ def render("user.json", %{user: %{nickname: nil} = user}) do
     |> Map.merge(Utils.make_json_ld_header())
   end
 
+  # the instance itself is not a Person, but instead an Application
+  def render("user.json", %{user: %User{nickname: nil} = user}),
+    do: render("service.json", %{user: user})
+
+  def render("user.json", %{user: %User{nickname: "internal." <> _} = user}),
+    do: render("service.json", %{user: user})
+
   def render("user.json", %{user: user}) do
     {:ok, user} = User.ensure_keys_present(user)
     {:ok, _, public_key} = Keys.keys_from_pem(user.info.keys)
diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index 52b8dc0bf..8095ac4b1 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -586,7 +586,7 @@ defmodule Pleroma.Web.Router do
     end
   end
 
-  pipeline :ap_relay do
+  pipeline :ap_service_actor do
     plug(:accepts, ["activity+json", "json"])
   end
 
@@ -663,8 +663,17 @@ defmodule Pleroma.Web.Router do
   end
 
   scope "/relay", Pleroma.Web.ActivityPub do
-    pipe_through(:ap_relay)
+    pipe_through(:ap_service_actor)
+
     get("/", ActivityPubController, :relay)
+    post("/inbox", ActivityPubController, :inbox)
+  end
+
+  scope "/internal/fetch", Pleroma.Web.ActivityPub do
+    pipe_through(:ap_service_actor)
+
+    get("/", ActivityPubController, :internal_fetch)
+    post("/inbox", ActivityPubController, :inbox)
   end
 
   scope "/", Pleroma.Web.ActivityPub do