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   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.ObjectValidators.CommonValidations do
   6   import Ecto.Changeset
   7
   8   alias Pleroma.Object
   9   alias Pleroma.User
  10
  11   def validate_actor_presence(cng, field_name \\ :actor) do
  12     cng
  13     |> validate_change(field_name, fn field_name, actor ->
  14       if User.get_cached_by_ap_id(actor) do
  15         []
  16       else
  17         [{field_name, "can't find user"}]
  18       end
  19     end)
  20   end
  21
  22   def validate_object_presence(cng, field_name \\ :object) do
  23     cng
  24     |> validate_change(field_name, fn field_name, object ->
  25       if Object.get_cached_by_ap_id(object) do
  26         []
  27       else
  28         [{field_name, "can't find object"}]
  29       end
  30     end)
  31   end
  32 end