# Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.ObjectValidator do
the system.
"""
- alias Pleroma.User
alias Pleroma.Object
- alias Pleroma.Web.ActivityPub.Utils
+ alias Pleroma.User
+ alias Pleroma.Web.ActivityPub.ObjectValidators.AnnounceValidator
+ alias Pleroma.Web.ActivityPub.ObjectValidators.ChatMessageValidator
+ alias Pleroma.Web.ActivityPub.ObjectValidators.CreateChatMessageValidator
+ alias Pleroma.Web.ActivityPub.ObjectValidators.DeleteValidator
+ alias Pleroma.Web.ActivityPub.ObjectValidators.EmojiReactValidator
+ alias Pleroma.Web.ActivityPub.ObjectValidators.LikeValidator
+ alias Pleroma.Web.ActivityPub.ObjectValidators.Types
+ alias Pleroma.Web.ActivityPub.ObjectValidators.UndoValidator
+
+ @spec validate(map(), keyword()) :: {:ok, map(), keyword()} | {:error, any()}
+ def validate(object, meta)
- def validate_id(object, meta) do
- with {_, true} <- {:id_presence, Map.has_key?(object, "id")} do
+ def validate(%{"type" => "Undo"} = object, meta) do
+ with {:ok, object} <-
+ object
+ |> UndoValidator.cast_and_validate()
+ |> Ecto.Changeset.apply_action(:insert) do
+ object = stringify_keys(object)
{:ok, object, meta}
- else
- e -> {:error, e}
end
end
- def validate_actor(object, meta) do
- with {_, %User{}} <- {:actor_validation, User.get_cached_by_ap_id(object["actor"])} do
+ def validate(%{"type" => "Delete"} = object, meta) do
+ with cng <- DeleteValidator.cast_and_validate(object),
+ do_not_federate <- DeleteValidator.do_not_federate?(cng),
+ {:ok, object} <- Ecto.Changeset.apply_action(cng, :insert) do
+ object = stringify_keys(object)
+ meta = Keyword.put(meta, :do_not_federate, do_not_federate)
{:ok, object, meta}
- else
- e -> {:error, e}
end
end
- def common_validations(object, meta) do
- with {_, {:ok, object, meta}} <- {:validate_id, validate_id(object, meta)},
- {_, {:ok, object, meta}} <- {:validate_actor, validate_actor(object, meta)} do
+ def validate(%{"type" => "Like"} = object, meta) do
+ with {:ok, object} <-
+ object
+ |> LikeValidator.cast_and_validate()
+ |> Ecto.Changeset.apply_action(:insert) do
+ object = stringify_keys(object)
{:ok, object, meta}
- else
- e -> {:error, e}
end
end
- @spec validate(map(), keyword()) :: {:ok, map(), keyword()} | {:error, any()}
- def validate(object, meta)
+ def validate(%{"type" => "ChatMessage"} = object, meta) do
+ with {:ok, object} <-
+ object
+ |> ChatMessageValidator.cast_and_validate()
+ |> Ecto.Changeset.apply_action(:insert) do
+ object = stringify_keys(object)
+ {:ok, object, meta}
+ end
+ end
- def validate(%{"type" => "Like"} = object, meta) do
- with {:ok, object, meta} <- common_validations(object, meta),
- {_, %Object{} = liked_object} <-
- {:find_liked_object, Object.normalize(object["object"])},
- {_, nil} <- {:existing_like, Utils.get_existing_like(object["actor"], liked_object)} do
+ def validate(%{"type" => "EmojiReact"} = object, meta) do
+ with {:ok, object} <-
+ object
+ |> EmojiReactValidator.cast_and_validate()
+ |> Ecto.Changeset.apply_action(:insert) do
+ object = stringify_keys(object |> Map.from_struct())
+ {:ok, object, meta}
+ end
+ end
+
+ def validate(%{"type" => "Create", "object" => object} = create_activity, meta) do
+ with {:ok, object_data} <- cast_and_apply(object),
+ meta = Keyword.put(meta, :object_data, object_data |> stringify_keys),
+ {:ok, create_activity} <-
+ create_activity
+ |> CreateChatMessageValidator.cast_and_validate(meta)
+ |> Ecto.Changeset.apply_action(:insert) do
+ create_activity = stringify_keys(create_activity)
+ {:ok, create_activity, meta}
+ end
+ end
+
+ def validate(%{"type" => "Announce"} = object, meta) do
+ with {:ok, object} <-
+ object
+ |> AnnounceValidator.cast_and_validate()
+ |> Ecto.Changeset.apply_action(:insert) do
+ object = stringify_keys(object |> Map.from_struct())
{:ok, object, meta}
- else
- e -> {:error, e}
end
end
- def validate(object, meta) do
- common_validations(object, meta)
+ def cast_and_apply(%{"type" => "ChatMessage"} = object) do
+ ChatMessageValidator.cast_and_apply(object)
+ end
+
+ def cast_and_apply(o), do: {:error, {:validator_not_set, o}}
+
+ def stringify_keys(%{__struct__: _} = object) do
+ object
+ |> Map.from_struct()
+ |> stringify_keys
+ end
+
+ def stringify_keys(object) when is_map(object) do
+ object
+ |> Map.new(fn {key, val} -> {to_string(key), stringify_keys(val)} end)
+ end
+
+ def stringify_keys(object) when is_list(object) do
+ object
+ |> Enum.map(&stringify_keys/1)
+ end
+
+ def stringify_keys(object), do: object
+
+ def fetch_actor(object) do
+ with {:ok, actor} <- Types.ObjectID.cast(object["actor"]) do
+ User.get_or_fetch_by_ap_id(actor)
+ end
+ end
+
+ def fetch_actor_and_object(object) do
+ fetch_actor(object)
+ Object.normalize(object["object"], true)
+ :ok
end
end