event_validator.ex
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event_validator.ex
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	# Pleroma: A lightweight social networking server
	# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
	# SPDX-License-Identifier: AGPL-3.0-only

	defmodule Pleroma.Web.ActivityPub.ObjectValidators.EventValidator do
	use Ecto.Schema

	alias Pleroma.Web.ActivityPub.ObjectValidators.CommonFixes
	alias Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations
	alias Pleroma.Web.ActivityPub.Transmogrifier

	import Ecto.Changeset

	@primary_key false
	@derive Jason.Encoder

	# Extends from NoteValidator
	embedded_schema do
	quote do
	unquote do
	import Elixir.Pleroma.Web.ActivityPub.ObjectValidators.CommonFields
	message_fields()
	object_fields()
	status_object_fields()
	end
	end
	end

	def cast_and_apply(data) do
	data
	\|> cast_data
	\|> apply_action(:insert)
	end

	def cast_and_validate(data) do
	data
	\|> cast_data()
	\|> validate_data()
	end

	def cast_data(data) do
	%__MODULE__{}
	\|> changeset(data)
	end

	defp fix(data) do
	data
	\|> CommonFixes.fix_actor()
	\|> CommonFixes.fix_object_defaults()
	\|> Transmogrifier.fix_emoji()
	end

	def changeset(struct, data) do
	data = fix(data)

	struct
	\|> cast(data, __schema__(:fields) -- [:attachment, :tag])
	\|> cast_embed(:attachment)
	\|> cast_embed(:tag)
	end

	defp validate_data(data_cng) do
	data_cng
	\|> validate_inclusion(:type, ["Event"])
	\|> validate_required([:id, :actor, :attributedTo, :type, :context])
	\|> CommonValidations.validate_any_presence([:cc, :to])
	\|> CommonValidations.validate_fields_match([:actor, :attributedTo])
	\|> CommonValidations.validate_actor_presence()
	\|> CommonValidations.validate_host_match()
	end
	end