59 lines
1.7 KiB
Elixir
59 lines
1.7 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Web.ActivityPub.ObjectValidator do
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@moduledoc """
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This module is responsible for validating an object (which can be an activity)
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and checking if it is both well formed and also compatible with our view of
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the system.
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"""
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alias Pleroma.User
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alias Pleroma.Object
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alias Pleroma.Web.ActivityPub.Utils
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def validate_id(object, meta) do
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with {_, true} <- {:id_presence, Map.has_key?(object, "id")} do
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{:ok, object, meta}
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else
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e -> {:error, e}
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end
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end
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def validate_actor(object, meta) do
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with {_, %User{}} <- {:actor_validation, User.get_cached_by_ap_id(object["actor"])} do
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{:ok, object, meta}
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else
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e -> {:error, e}
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end
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end
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def common_validations(object, meta) do
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with {_, {:ok, object, meta}} <- {:validate_id, validate_id(object, meta)},
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{_, {:ok, object, meta}} <- {:validate_actor, validate_actor(object, meta)} do
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{:ok, object, meta}
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else
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e -> {:error, e}
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end
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end
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@spec validate(map(), keyword()) :: {:ok, map(), keyword()} | {:error, any()}
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def validate(object, meta)
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def validate(%{"type" => "Like"} = object, meta) do
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with {:ok, object, meta} <- common_validations(object, meta),
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{_, %Object{} = liked_object} <-
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{:find_liked_object, Object.normalize(object["object"])},
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{_, nil} <- {:existing_like, Utils.get_existing_like(object["actor"], liked_object)} do
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{:ok, object, meta}
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else
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e -> {:error, e}
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end
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end
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def validate(object, meta) do
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common_validations(object, meta)
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end
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end
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