# Pleroma: A lightweight social networking server
-# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.SideEffects do
collection, and so on.
"""
alias Pleroma.Activity
- alias Pleroma.Activity.Ir.Topics
- alias Pleroma.Chat
- alias Pleroma.Chat.MessageReference
alias Pleroma.FollowingRelationship
alias Pleroma.Notification
alias Pleroma.Object
require Logger
- @cachex Pleroma.Config.get([:cachex, :provider], Cachex)
- @ap_streamer Pleroma.Config.get([:side_effects, :ap_streamer], ActivityPub)
@logger Pleroma.Config.get([:side_effects, :logger], Logger)
@behaviour Pleroma.Web.ActivityPub.SideEffects.Handling
+ defp ap_streamer, do: Pleroma.Config.get([:side_effects, :ap_streamer], ActivityPub)
+
@impl true
def handle(object, meta \\ [])
# - Increase replies count
# - Set up ActivityExpiration
# - Set up notifications
+ # - Index incoming posts for search (if needed)
@impl true
def handle(%{data: %{"type" => "Create"}} = activity, meta) do
with {:ok, object, meta} <- handle_object_creation(meta[:object_data], activity, meta),
%User{} = user <- User.get_cached_by_ap_id(activity.data["actor"]) do
{:ok, notifications} = Notification.create_notifications(activity, do_send: false)
{:ok, _user} = ActivityPub.increase_note_count_if_public(user, object)
+ {:ok, _user} = ActivityPub.update_last_status_at_if_public(user, object)
- if in_reply_to = object.data["inReplyTo"] && object.data["type"] != "Answer" do
+ if in_reply_to = object.data["type"] != "Answer" && object.data["inReplyTo"] do
Object.increase_replies_count(in_reply_to)
end
+ reply_depth = (meta[:depth] || 0) + 1
+
+ # FIXME: Force inReplyTo to replies
+ if Pleroma.Web.Federator.allowed_thread_distance?(reply_depth) and
+ object.data["replies"] != nil do
+ for reply_id <- object.data["replies"] do
+ Pleroma.Workers.RemoteFetcherWorker.enqueue("fetch_remote", %{
+ "id" => reply_id,
+ "depth" => reply_depth
+ })
+ end
+ end
+
ConcurrentLimiter.limit(Pleroma.Web.RichMedia.Helpers, fn ->
Task.start(fn -> Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity) end)
end)
+ Pleroma.Search.add_to_index(Map.put(activity, :object, object))
+
meta =
meta
|> add_notifications(notifications)
+ ap_streamer().stream_out(activity)
+
{:ok, activity, meta}
else
e -> Repo.rollback(e)
if !User.is_internal_user?(user) do
Notification.create_notifications(object)
- object
- |> Topics.get_activity_topics()
- |> Streamer.stream(object)
+ ap_streamer().stream_out(object)
end
{:ok, object, meta}
# - Reduce the user note count
# - Reduce the reply count
# - Stream out the activity
+ # - Removes posts from search index (if needed)
@impl true
def handle(%{data: %{"type" => "Delete", "object" => deleted_object}} = object, meta) do
deleted_object =
result =
case deleted_object do
%Object{} ->
- with {:ok, deleted_object, activity} <- Object.delete(deleted_object),
+ with {:ok, deleted_object, _activity} <- Object.delete(deleted_object),
{_, actor} when is_binary(actor) <- {:actor, deleted_object.data["actor"]},
%User{} = user <- User.get_cached_by_ap_id(actor) do
- User.remove_pinnned_activity(user, activity)
+ User.remove_pinned_object_id(user, deleted_object.data["id"])
{:ok, user} = ActivityPub.decrease_note_count_if_public(user, deleted_object)
Object.decrease_replies_count(in_reply_to)
end
- MessageReference.delete_for_object(deleted_object)
-
- @ap_streamer.stream_out(object)
- @ap_streamer.stream_out_participations(deleted_object, user)
+ ap_streamer().stream_out(object)
+ ap_streamer().stream_out_participations(deleted_object, user)
:ok
else
{:actor, _} ->
if result == :ok do
Notification.create_notifications(object)
+
+ # Only remove from index when deleting actual objects, not users or anything else
+ with %Pleroma.Object{} <- deleted_object do
+ Pleroma.Search.remove_from_index(deleted_object)
+ end
+
{:ok, object, meta}
else
{:error, result}
end
end
- # Nothing to do
+ # Tasks this handles:
+ # - adds pin to user
+ # - removes expiration job for pinned activity, if was set for expiration
@impl true
- def handle(object, meta) do
- {:ok, object, meta}
- end
+ def handle(%{data: %{"type" => "Add"} = data} = object, meta) do
+ with %User{} = user <- User.get_cached_by_ap_id(data["actor"]),
+ {:ok, _user} <- User.add_pinned_object_id(user, data["object"]) do
+ # if pinned activity was scheduled for deletion, we remove job
+ if expiration = Pleroma.Workers.PurgeExpiredActivity.get_expiration(meta[:activity_id]) do
+ Oban.cancel_job(expiration.id)
+ end
- def handle_object_creation(%{"type" => "ChatMessage"} = object, _activity, meta) do
- with {:ok, object, meta} <- Pipeline.common_pipeline(object, meta) do
- actor = User.get_cached_by_ap_id(object.data["actor"])
- recipient = User.get_cached_by_ap_id(hd(object.data["to"]))
-
- streamables =
- [[actor, recipient], [recipient, actor]]
- |> Enum.uniq()
- |> Enum.map(fn [user, other_user] ->
- if user.local do
- {:ok, chat} = Chat.bump_or_create(user.id, other_user.ap_id)
- {:ok, cm_ref} = MessageReference.create(chat, object, user.ap_id != actor.ap_id)
-
- @cachex.put(
- :chat_message_id_idempotency_key_cache,
- cm_ref.id,
- meta[:idempotency_key]
- )
-
- {
- ["user", "user:pleroma_chat"],
- {user, %{cm_ref | chat: chat, object: object}}
- }
- end
- end)
- |> Enum.filter(& &1)
+ {:ok, object, meta}
+ else
+ nil ->
+ {:error, :user_not_found}
+
+ {:error, changeset} ->
+ if changeset.errors[:pinned_objects] do
+ {:error, :pinned_statuses_limit_reached}
+ else
+ changeset.errors
+ end
+ end
+ end
- meta =
- meta
- |> add_streamables(streamables)
+ # Tasks this handles:
+ # - removes pin from user
+ # - removes corresponding Add activity
+ # - if activity had expiration, recreates activity expiration job
+ @impl true
+ def handle(%{data: %{"type" => "Remove"} = data} = object, meta) do
+ with %User{} = user <- User.get_cached_by_ap_id(data["actor"]),
+ {:ok, _user} <- User.remove_pinned_object_id(user, data["object"]) do
+ data["object"]
+ |> Activity.add_by_params_query(user.ap_id, user.featured_address)
+ |> Repo.delete_all()
+
+ # if pinned activity was scheduled for deletion, we reschedule it for deletion
+ if meta[:expires_at] do
+ # MRF.ActivityExpirationPolicy used UTC timestamps for expires_at in original implementation
+ {:ok, expires_at} =
+ Pleroma.EctoType.ActivityPub.ObjectValidators.DateTime.cast(meta[:expires_at])
+
+ Pleroma.Workers.PurgeExpiredActivity.enqueue(%{
+ activity_id: meta[:activity_id],
+ expires_at: expires_at
+ })
+ end
{:ok, object, meta}
+ else
+ nil -> {:error, :user_not_found}
+ error -> error
end
end
+ # Nothing to do
+ @impl true
+ def handle(object, meta) do
+ {:ok, object, meta}
+ end
+
def handle_object_creation(%{"type" => "Question"} = object, activity, meta) do
with {:ok, object, meta} <- Pipeline.common_pipeline(object, meta) do
PollWorker.schedule_poll_end(activity)
end
def handle_object_creation(%{"type" => objtype} = object, _activity, meta)
- when objtype in ~w[Audio Video Event Article] do
+ when objtype in ~w[Audio Video Event Article Note Page] do
with {:ok, object, meta} <- Pipeline.common_pipeline(object, meta) do
{:ok, object, meta}
end
meta
end
- defp add_streamables(meta, streamables) do
- existing = Keyword.get(meta, :streamables, [])
-
- meta
- |> Keyword.put(:streamables, streamables ++ existing)
- end
-
defp add_notifications(meta, notifications) do
existing = Keyword.get(meta, :notifications, [])
projects / akkoma / blobdiff