git.squeep.com Git - akkoma/blob - lib/pleroma/web/activity_pub/object_validators/common_fixes.ex

   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.Web.ActivityPub.ObjectValidators.CommonFixes do
   6   alias Pleroma.EctoType.ActivityPub.ObjectValidators
   7   alias Pleroma.Object
   8   alias Pleroma.Object.Containment
   9   alias Pleroma.User
  10   alias Pleroma.Web.ActivityPub.Transmogrifier
  11   alias Pleroma.Web.ActivityPub.Utils
  12
  13   def cast_and_filter_recipients(message, field, follower_collection, field_fallback \\ []) do
  14     {:ok, data} = ObjectValidators.Recipients.cast(message[field] || field_fallback)
  15
  16     data =
  17       Enum.reject(data, fn x ->
  18         String.ends_with?(x, "/followers") and x != follower_collection
  19       end)
  20
  21     Map.put(message, field, data)
  22   end
  23
  24   def fix_object_defaults(data) do
  25     %{data: %{"id" => context}, id: context_id} =
  26       Utils.create_context(data["context"] || data["conversation"])
  27
  28     %User{follower_address: follower_collection} = User.get_cached_by_ap_id(data["attributedTo"])
  29
  30     data
  31     |> Map.put("context", context)
  32     |> Map.put("context_id", context_id)
  33     |> cast_and_filter_recipients("to", follower_collection)
  34     |> cast_and_filter_recipients("cc", follower_collection)
  35     |> cast_and_filter_recipients("bto", follower_collection)
  36     |> cast_and_filter_recipients("bcc", follower_collection)
  37     |> Transmogrifier.fix_implicit_addressing(follower_collection)
  38   end
  39
  40   def fix_activity_addressing(activity) do
  41     %User{follower_address: follower_collection} = User.get_cached_by_ap_id(activity["actor"])
  42
  43     activity
  44     |> cast_and_filter_recipients("to", follower_collection)
  45     |> cast_and_filter_recipients("cc", follower_collection)
  46     |> cast_and_filter_recipients("bto", follower_collection)
  47     |> cast_and_filter_recipients("bcc", follower_collection)
  48     |> Transmogrifier.fix_implicit_addressing(follower_collection)
  49   end
  50
  51   def fix_actor(data) do
  52     actor =
  53       data
  54       |> Map.put_new("actor", data["attributedTo"])
  55       |> Containment.get_actor()
  56
  57     data
  58     |> Map.put("actor", actor)
  59     |> Map.put("attributedTo", actor)
  60   end
  61
  62   def fix_activity_context(data, %Object{data: %{"context" => object_context}}) do
  63     data
  64     |> Map.put("context", object_context)
  65   end
  66
  67   def fix_object_action_recipients(%{"actor" => actor} = data, %Object{data: %{"actor" => actor}}) do
  68     to = ((data["to"] || []) -- [actor]) |> Enum.uniq()
  69
  70     Map.put(data, "to", to)
  71   end
  72
  73   def fix_object_action_recipients(data, %Object{data: %{"actor" => actor}}) do
  74     to = ((data["to"] || []) ++ [actor]) |> Enum.uniq()
  75
  76     Map.put(data, "to", to)
  77   end
  78 end