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# Pleroma: A lightweight social networking server
# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.ObjectValidators.UpdateValidator do
use Ecto.Schema
alias Pleroma.EctoType.ActivityPub.ObjectValidators
import Ecto.Changeset
import Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations
@primary_key false
embedded_schema do
field(:id, ObjectValidators.ObjectID, primary_key: true)
field(:type, :string)
field(:actor, ObjectValidators.ObjectID)
field(:to, ObjectValidators.Recipients, default: [])
field(:cc, ObjectValidators.Recipients, default: [])
# In this case, we save the full object in this activity instead of just a
# reference, so we can always see what was actually changed by this.
field(:object, :map)
end
def cast_data(data) do
%__MODULE__{}
|> cast(data, __schema__(:fields))
end
defp validate_data(cng) do
cng
|> validate_required([:id, :type, :actor, :to, :cc, :object])
|> validate_inclusion(:type, ["Update"])
|> validate_actor_presence()
|> validate_updating_rights()
end
def cast_and_validate(data) do
data
|> cast_data
|> validate_data
end
# For now we only support updating users, and here the rule is easy:
# object id == actor id
def validate_updating_rights(cng) do
with actor = get_field(cng, :actor),
object = get_field(cng, :object),
{:ok, object_id} <- ObjectValidators.ObjectID.cast(object),
true <- actor == object_id do
cng
else
_e ->
cng
|> add_error(:object, "Can't be updated by this actor")
end
end
end
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