85 lines
1.9 KiB
Elixir
85 lines
1.9 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Web.ActivityPub.ObjectValidators.LikeValidator do
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use Ecto.Schema
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alias Pleroma.Object
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alias Pleroma.Web.ActivityPub.ObjectValidators.CommonFixes
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alias Pleroma.Web.ActivityPub.Utils
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import Ecto.Changeset
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import Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations
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@primary_key false
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embedded_schema do
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quote do
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unquote do
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import Elixir.Pleroma.Web.ActivityPub.ObjectValidators.CommonFields
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message_fields()
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activity_fields()
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end
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end
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field(:context, :string)
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end
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def cast_and_validate(data) do
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data
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|> cast_data()
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|> validate_data()
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end
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def cast_data(data) do
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data =
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data
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|> fix()
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%__MODULE__{}
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|> changeset(data)
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end
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def changeset(struct, data) do
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struct
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|> cast(data, __schema__(:fields))
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end
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defp fix(data) do
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data =
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data
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|> CommonFixes.fix_actor()
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|> CommonFixes.fix_activity_addressing()
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with %Object{} = object <- Object.normalize(data["object"]) do
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data
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|> CommonFixes.fix_activity_context(object)
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|> CommonFixes.fix_object_action_recipients(object)
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else
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_ -> data
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end
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end
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defp validate_data(data_cng) do
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data_cng
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|> validate_inclusion(:type, ["Like"])
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|> validate_required([:id, :type, :object, :actor, :context, :to, :cc])
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|> validate_actor_presence()
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|> validate_object_presence()
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|> validate_existing_like()
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end
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defp validate_existing_like(%{changes: %{actor: actor, object: object}} = cng) do
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if Utils.get_existing_like(actor, %{data: %{"id" => object}}) do
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cng
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|> add_error(:actor, "already liked this object")
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|> add_error(:object, "already liked by this actor")
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else
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cng
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end
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end
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defp validate_existing_like(cng), do: cng
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end
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