From 35f6770436837e2e500971a54d51984bd059adfd Mon Sep 17 00:00:00 2001
From: lain <lain@soykaf.club>
Date: Wed, 24 Jun 2020 13:29:08 +0200
Subject: [PATCH] StatusView: Add pleroma.parent_visible

---
 lib/pleroma/web/activity_pub/visibility.ex    |  6 ++++--
 .../web/mastodon_api/views/status_view.ex     |  5 +++--
 .../mastodon_api/views/status_view_test.exs   | 19 ++++++++++++++++++-
 3 files changed, 25 insertions(+), 5 deletions(-)

diff --git a/lib/pleroma/web/activity_pub/visibility.ex b/lib/pleroma/web/activity_pub/visibility.ex
index 453a6842e..343f41caa 100644
--- a/lib/pleroma/web/activity_pub/visibility.ex
+++ b/lib/pleroma/web/activity_pub/visibility.ex
@@ -47,6 +47,10 @@ def is_list?(_), do: false
   @spec visible_for_user?(Activity.t(), User.t() | nil) :: boolean()
   def visible_for_user?(%{actor: ap_id}, %User{ap_id: ap_id}), do: true
 
+  def visible_for_user?(nil, _), do: false
+
+  def visible_for_user?(%{data: %{"listMessage" => _}}, nil), do: false
+
   def visible_for_user?(%{data: %{"listMessage" => list_ap_id}} = activity, %User{} = user) do
     user.ap_id in activity.data["to"] ||
       list_ap_id
@@ -54,8 +58,6 @@ def visible_for_user?(%{data: %{"listMessage" => list_ap_id}} = activity, %User{
       |> Pleroma.List.member?(user)
   end
 
-  def visible_for_user?(%{data: %{"listMessage" => _}}, nil), do: false
-
   def visible_for_user?(%{local: local} = activity, nil) do
     cfg_key =
       if local,
diff --git a/lib/pleroma/web/mastodon_api/views/status_view.ex b/lib/pleroma/web/mastodon_api/views/status_view.ex
index 2c49bedb3..6ee17f4dd 100644
--- a/lib/pleroma/web/mastodon_api/views/status_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/status_view.ex
@@ -21,7 +21,7 @@ defmodule Pleroma.Web.MastodonAPI.StatusView do
   alias Pleroma.Web.MastodonAPI.StatusView
   alias Pleroma.Web.MediaProxy
 
-  import Pleroma.Web.ActivityPub.Visibility, only: [get_visibility: 1]
+  import Pleroma.Web.ActivityPub.Visibility, only: [get_visibility: 1, visible_for_user?: 2]
 
   # TODO: Add cached version.
   defp get_replied_to_activities([]), do: %{}
@@ -364,7 +364,8 @@ def render("show.json", %{activity: %{data: %{"object" => _object}} = activity}
         expires_at: expires_at,
         direct_conversation_id: direct_conversation_id,
         thread_muted: thread_muted?,
-        emoji_reactions: emoji_reactions
+        emoji_reactions: emoji_reactions,
+        parent_visible: visible_for_user?(reply_to, opts[:for])
       }
     }
   end
diff --git a/test/web/mastodon_api/views/status_view_test.exs b/test/web/mastodon_api/views/status_view_test.exs
index 5cbadf0fc..f90a0c273 100644
--- a/test/web/mastodon_api/views/status_view_test.exs
+++ b/test/web/mastodon_api/views/status_view_test.exs
@@ -226,7 +226,8 @@ test "a note activity" do
         expires_at: nil,
         direct_conversation_id: nil,
         thread_muted: false,
-        emoji_reactions: []
+        emoji_reactions: [],
+        parent_visible: false
       }
     }
 
@@ -620,4 +621,20 @@ test "visibility/list" do
 
     assert status.visibility == "list"
   end
+
+  test "has a field for parent visibility" do
+    user = insert(:user)
+    poster = insert(:user)
+
+    {:ok, invisible} = CommonAPI.post(poster, %{status: "hey", visibility: "private"})
+
+    {:ok, visible} =
+      CommonAPI.post(poster, %{status: "hey", visibility: "private", in_reply_to_id: invisible.id})
+
+    status = StatusView.render("show.json", activity: visible, for: user)
+    refute status.pleroma.parent_visible
+
+    status = StatusView.render("show.json", activity: visible, for: poster)
+    assert status.pleroma.parent_visible
+  end
 end