akkoma/lib/pleroma/web/activity_pub/transmogrifier/chat_message_handling.ex
lain 6aa116eca7 Create activity handling: Flip it and reverse it
Both objects and create activities will now go through the common
pipeline and will be validated. Objects are now created as a side
effect of the Create activity, rolling back a transaction if it's
not possible to insert the object.
2020-04-28 16:26:19 +02:00

46 lines
1.7 KiB
Elixir

# 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.Transmogrifier.ChatMessageHandling do
alias Pleroma.Repo
alias Pleroma.Web.ActivityPub.ObjectValidator
alias Pleroma.Web.ActivityPub.ObjectValidators.ChatMessageValidator
alias Pleroma.Web.ActivityPub.ObjectValidators.CreateChatMessageValidator
alias Pleroma.Web.ActivityPub.Pipeline
def handle_incoming(
%{"type" => "Create", "object" => %{"type" => "ChatMessage"}} = data,
_options
) do
# Create has to be run inside a transaction because the object is created as a side effect.
# If this does not work, we need to roll back creating the activity.
case Repo.transaction(fn -> do_handle_incoming(data) end) do
{:ok, value} ->
value
{:error, e} ->
{:error, e}
end
end
def do_handle_incoming(
%{"type" => "Create", "object" => %{"type" => "ChatMessage"} = object_data} = data
) do
with {_, {:ok, cast_data_sym}} <-
{:casting_data, data |> CreateChatMessageValidator.cast_and_apply()},
cast_data = ObjectValidator.stringify_keys(cast_data_sym),
{_, {:ok, object_cast_data_sym}} <-
{:casting_object_data, object_data |> ChatMessageValidator.cast_and_apply()},
object_cast_data = ObjectValidator.stringify_keys(object_cast_data_sym),
{_, {:ok, activity, _meta}} <-
{:common_pipeline,
Pipeline.common_pipeline(cast_data, local: false, object_data: object_cast_data)} do
{:ok, activity}
else
e ->
{:error, e}
end
end
end