Merge remote-tracking branch 'remotes/origin/develop' into 1560-non-federating-instan...
[akkoma] / lib / pleroma / web / activity_pub / visibility.ex
1 # Pleroma: A lightweight social networking server
2 # Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
3 # SPDX-License-Identifier: AGPL-3.0-only
4
5 defmodule Pleroma.Web.ActivityPub.Visibility do
6 alias Pleroma.Activity
7 alias Pleroma.Object
8 alias Pleroma.Repo
9 alias Pleroma.User
10 alias Pleroma.Web.ActivityPub.Utils
11
12 require Pleroma.Constants
13
14 @spec is_public?(Object.t() | Activity.t() | map()) :: boolean()
15 def is_public?(%Object{data: %{"type" => "Tombstone"}}), do: false
16 def is_public?(%Object{data: data}), do: is_public?(data)
17 def is_public?(%Activity{data: %{"type" => "Move"}}), do: true
18 def is_public?(%Activity{data: data}), do: is_public?(data)
19 def is_public?(%{"directMessage" => true}), do: false
20 def is_public?(data), do: Utils.label_in_message?(Pleroma.Constants.as_public(), data)
21
22 def is_private?(activity) do
23 with false <- is_public?(activity),
24 %User{follower_address: follower_address} <-
25 User.get_cached_by_ap_id(activity.data["actor"]) do
26 follower_address in activity.data["to"]
27 else
28 _ -> false
29 end
30 end
31
32 def is_announceable?(activity, user, public \\ true) do
33 is_public?(activity) ||
34 (!public && is_private?(activity) && activity.data["actor"] == user.ap_id)
35 end
36
37 def is_direct?(%Activity{data: %{"directMessage" => true}}), do: true
38 def is_direct?(%Object{data: %{"directMessage" => true}}), do: true
39
40 def is_direct?(activity) do
41 !is_public?(activity) && !is_private?(activity)
42 end
43
44 def is_list?(%{data: %{"listMessage" => _}}), do: true
45 def is_list?(_), do: false
46
47 def visible_for_user?(%{actor: ap_id}, %User{ap_id: ap_id}), do: true
48
49 def visible_for_user?(%{data: %{"listMessage" => list_ap_id}} = activity, %User{} = user) do
50 user.ap_id in activity.data["to"] ||
51 list_ap_id
52 |> Pleroma.List.get_by_ap_id()
53 |> Pleroma.List.member?(user)
54 end
55
56 def visible_for_user?(%{data: %{"listMessage" => _}}, nil), do: false
57
58 def visible_for_user?(activity, nil) do
59 is_public?(activity)
60 end
61
62 def visible_for_user?(activity, user) do
63 x = [user.ap_id | User.following(user)]
64 y = [activity.actor] ++ activity.data["to"] ++ (activity.data["cc"] || [])
65 visible_for_user?(activity, nil) || Enum.any?(x, &(&1 in y))
66 end
67
68 def entire_thread_visible_for_user?(%Activity{} = activity, %User{} = user) do
69 {:ok, %{rows: [[result]]}} =
70 Ecto.Adapters.SQL.query(Repo, "SELECT thread_visibility($1, $2)", [
71 user.ap_id,
72 activity.data["id"]
73 ])
74
75 result
76 end
77
78 def get_visibility(object) do
79 to = object.data["to"] || []
80 cc = object.data["cc"] || []
81
82 cond do
83 Pleroma.Constants.as_public() in to ->
84 "public"
85
86 Pleroma.Constants.as_public() in cc ->
87 "unlisted"
88
89 # this should use the sql for the object's activity
90 Enum.any?(to, &String.contains?(&1, "/followers")) ->
91 "private"
92
93 object.data["directMessage"] == true ->
94 "direct"
95
96 is_binary(object.data["listMessage"]) ->
97 "list"
98
99 length(cc) > 0 ->
100 "private"
101
102 true ->
103 "direct"
104 end
105 end
106 end