1 files changed, 33 insertions, 3 deletions
diff --git a/lib/pleroma/web/pleroma_api/controllers/emoji_reaction_controller.ex b/lib/pleroma/web/pleroma_api/controllers/emoji_reaction_controller.ex
index ae199a50f..da5f2474f 100644
--- a/lib/pleroma/web/pleroma_api/controllers/emoji_reaction_controller.ex
+++ b/lib/pleroma/web/pleroma_api/controllers/emoji_reaction_controller.ex
@@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.PleromaAPI.EmojiReactionController do
@@ -7,6 +7,7 @@ defmodule Pleroma.Web.PleromaAPI.EmojiReactionController do
 
   alias Pleroma.Activity
   alias Pleroma.Object
+  alias Pleroma.User
   alias Pleroma.Web.CommonAPI
   alias Pleroma.Web.MastodonAPI.StatusView
   alias Pleroma.Web.Plugs.OAuthScopesPlug
@@ -28,14 +29,43 @@ defmodule Pleroma.Web.PleromaAPI.EmojiReactionController do
     with true <- Pleroma.Config.get([:instance, :show_reactions]),
          %Activity{} = activity <- Activity.get_by_id_with_object(activity_id),
          %Object{data: %{"reactions" => reactions}} when is_list(reactions) <-
-           Object.normalize(activity) do
-      reactions = filter(reactions, params)
+           Object.normalize(activity, fetch: false) do
+      reactions =
+        reactions
+        |> filter(params)
+        |> filter_allowed_users(user, Map.get(params, :with_muted, false))
+
       render(conn, "index.json", emoji_reactions: reactions, user: user)
     else
       _e -> json(conn, [])
     end
   end
 
+  def filter_allowed_users(reactions, user, with_muted) do
+    exclude_ap_ids =
+      if is_nil(user) do
+        []
+      else
+        User.cached_blocked_users_ap_ids(user) ++
+          if not with_muted, do: User.cached_muted_users_ap_ids(user), else: []
+      end
+
+    filter_emoji = fn emoji, users ->
+      case Enum.reject(users, &(&1 in exclude_ap_ids)) do
+        [] -> nil
+        users -> {emoji, users}
+      end
+    end
+
+    reactions
+    |> Stream.map(fn
+      [emoji, users] when is_list(users) -> filter_emoji.(emoji, users)
+      {emoji, users} when is_list(users) -> filter_emoji.(emoji, users)
+      _ -> nil
+    end)
+    |> Stream.reject(&is_nil/1)
+  end
+
   defp filter(reactions, %{emoji: emoji}) when is_binary(emoji) do
     Enum.filter(reactions, fn [e, _] -> e == emoji end)
   end