X-Git-Url: http://git.squeep.com/?a=blobdiff_plain;f=lib%2Fpleroma%2Fweb%2Factivity_pub%2Futils.ex;h=2bc95867078eb19ed9e656186c81e991071e7ddd;hb=5fc92deef37dcc4db476520d89dd79e616356e63;hp=4bcacc6d15c984d2aa9eedb9d07b72501d5964bf;hpb=f13b7878b42e7914248629af8c9c963f7af98d11;p=akkoma

diff --git a/lib/pleroma/web/activity_pub/utils.ex b/lib/pleroma/web/activity_pub/utils.ex
index 4bcacc6d1..2bc958670 100644
--- a/lib/pleroma/web/activity_pub/utils.ex
+++ b/lib/pleroma/web/activity_pub/utils.ex
@@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.ActivityPub.Utils do
@@ -45,8 +45,8 @@ defmodule Pleroma.Web.ActivityPub.Utils do
     Map.put(params, "actor", get_ap_id(params["actor"]))
   end
 
-  @spec determine_explicit_mentions(map()) :: map()
-  def determine_explicit_mentions(%{"tag" => tag} = _) when is_list(tag) do
+  @spec determine_explicit_mentions(map()) :: [any]
+  def determine_explicit_mentions(%{"tag" => tag}) when is_list(tag) do
     Enum.flat_map(tag, fn
       %{"type" => "Mention", "href" => href} -> [href]
       _ -> []
@@ -427,7 +427,7 @@ defmodule Pleroma.Web.ActivityPub.Utils do
   @doc """
   Updates a follow activity's state (for locked accounts).
   """
-  @spec update_follow_state_for_all(Activity.t(), String.t()) :: {:ok, Activity} | {:error, any()}
+  @spec update_follow_state_for_all(Activity.t(), String.t()) :: {:ok, Activity | nil}
   def update_follow_state_for_all(
         %Activity{data: %{"actor" => actor, "object" => object}} = activity,
         state
@@ -490,6 +490,15 @@ defmodule Pleroma.Web.ActivityPub.Utils do
     |> Repo.one()
   end
 
+  def fetch_latest_undo(%User{ap_id: ap_id}) do
+    "Undo"
+    |> Activity.Queries.by_type()
+    |> where(actor: ^ap_id)
+    |> order_by([activity], fragment("? desc nulls last", activity.id))
+    |> limit(1)
+    |> Repo.one()
+  end
+
   def get_latest_reaction(internal_activity_id, %{ap_id: ap_id}, emoji) do
     %{data: %{"object" => object_ap_id}} = Activity.get_by_id(internal_activity_id)