Transmogrifier: Add tests for incoming follows to locked accounts.

lib/pleroma/web/activity_pub/transmogrifier.ex

@@ -458,10 +458,11 @@ def handle_incoming(
          {:ok, %User{} = follower} <- User.get_or_fetch_by_ap_id(follower),
          {:ok, activity} <- ActivityPub.follow(follower, followed, id, false) do
       with deny_follow_blocked <- Pleroma.Config.get([:user, :deny_follow_blocked]),
-           {:user_blocked, false} <-
+           {_, false} <-
              {:user_blocked, User.blocks?(followed, follower) && deny_follow_blocked},
-           {:user_locked, false} <- {:user_locked, User.locked?(followed)},
-           {:follow, {:ok, follower}} <- {:follow, User.follow(follower, followed)} do
+           {_, false} <- {:user_locked, User.locked?(followed)},
+           {_, {:ok, follower}} <- {:follow, User.follow(follower, followed)},
+           {_, {:ok, _}} <- {:follow_state_update, Utils.update_follow_state(activity, "accept")} do
         ActivityPub.accept(%{
           to: [follower.ap_id],
           actor: followed,

test/web/activity_pub/transmogrifier/follow_handling_test.exs

@@ -27,14 +27,41 @@ test "it works for incoming follow requests" do
         |> Poison.decode!()
         |> Map.put("object", user.ap_id)
 
-      {:ok, %Activity{data: data, local: false}} = Transmogrifier.handle_incoming(data)
+      {:ok, %Activity{data: data, local: false} = activity} = Transmogrifier.handle_incoming(data)
 
       assert data["actor"] == "http://mastodon.example.org/users/admin"
       assert data["type"] == "Follow"
       assert data["id"] == "http://mastodon.example.org/users/admin#follows/2"
+
+      activity = Repo.get(Activity, activity.id)
+      assert activity.data["state"] == "accept"
       assert User.following?(User.get_cached_by_ap_id(data["actor"]), user)
     end
 
+    test "with locked accounts, it does not create a follow or an accept" do
+      user = insert(:user, info: %{locked: true})
+
+      data =
+        File.read!("test/fixtures/mastodon-follow-activity.json")
+        |> Poison.decode!()
+        |> Map.put("object", user.ap_id)
+
+      {:ok, %Activity{data: data, local: false}} = Transmogrifier.handle_incoming(data)
+
+      assert data["state"] == "pending"
+
+      refute User.following?(User.get_cached_by_ap_id(data["actor"]), user)
+
+      accepts =
+        from(
+          a in Activity,
+          where: fragment("?->>'type' = ?", a.data, "Accept")
+        )
+        |> Repo.all()
+
+      assert length(accepts) == 0
+    end
+
     test "it works for follow requests when you are already followed, creating a new accept activity" do
       # This is important because the remote might have the wrong idea about the
       # current follow status. This can lead to instance A thinking that x@A is