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+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.ObjectValidators.EventValidator do
+ use Ecto.Schema
+
+ alias Pleroma.EctoType.ActivityPub.ObjectValidators
+ alias Pleroma.Web.ActivityPub.ObjectValidators.AttachmentValidator
+ alias Pleroma.Web.ActivityPub.ObjectValidators.CommonFixes
+ alias Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations
+
+ import Ecto.Changeset
+
+ @primary_key false
+ @derive Jason.Encoder
+
+ # Extends from NoteValidator
+ embedded_schema do
+ field(:id, ObjectValidators.ObjectID, primary_key: true)
+ field(:to, ObjectValidators.Recipients, default: [])
+ field(:cc, ObjectValidators.Recipients, default: [])
+ field(:bto, ObjectValidators.Recipients, default: [])
+ field(:bcc, ObjectValidators.Recipients, default: [])
+ # TODO: Write type
+ field(:tag, {:array, :map}, default: [])
+ field(:type, :string)
+
+ field(:name, :string)
+ field(:summary, :string)
+ field(:content, :string)
+
+ field(:context, :string)
+ # short identifier for PleromaFE to group statuses by context
+ field(:context_id, :integer)
+
+ # TODO: Remove actor on objects
+ field(:actor, ObjectValidators.ObjectID)
+
+ field(:attributedTo, ObjectValidators.ObjectID)
+ field(:published, ObjectValidators.DateTime)
+ # TODO: Write type
+ field(:emoji, :map, default: %{})
+ field(:sensitive, :boolean, default: false)
+ embeds_many(:attachment, AttachmentValidator)
+ field(:replies_count, :integer, default: 0)
+ field(:like_count, :integer, default: 0)
+ field(:announcement_count, :integer, default: 0)
+ field(:inReplyTo, ObjectValidators.ObjectID)
+ field(:url, ObjectValidators.Uri)
+
+ field(:likes, {:array, ObjectValidators.ObjectID}, default: [])
+ field(:announcements, {:array, ObjectValidators.ObjectID}, default: [])
+ 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_defaults()
+ |> CommonFixes.fix_attribution()
+ end
+
+ def changeset(struct, data) do
+ data = fix(data)
+
+ struct
+ |> cast(data, __schema__(:fields) -- [:attachment])
+ |> cast_embed(:attachment)
+ end
+
+ def validate_data(data_cng) do
+ data_cng
+ |> validate_inclusion(:type, ["Event"])
+ |> validate_required([:id, :actor, :attributedTo, :type, :context, :context_id])
+ |> CommonValidations.validate_any_presence([:cc, :to])
+ |> CommonValidations.validate_fields_match([:actor, :attributedTo])
+ |> CommonValidations.validate_actor_presence()
+ |> CommonValidations.validate_host_match()
+ end
+end