X-Git-Url: http://git.squeep.com/?a=blobdiff_plain;f=lib%2Fpleroma%2Fweb%2Factivity_pub%2Fside_effects.ex;h=3dc66c60b838e713ed252ed43ce3d17a84acab1b;hb=0f132b802dde7f217ecb07767e0d34e3edb517b7;hp=09fd7d7c9d7450bcec2004f5d008561ab4c7bee8;hpb=31a4d42ce0470d74417279a855192294650cff97;p=akkoma diff --git a/lib/pleroma/web/activity_pub/side_effects.ex b/lib/pleroma/web/activity_pub/side_effects.ex index 09fd7d7c9..439268470 100644 --- a/lib/pleroma/web/activity_pub/side_effects.ex +++ b/lib/pleroma/web/activity_pub/side_effects.ex @@ -1,3 +1,7 @@ +# Pleroma: A lightweight social networking server +# Copyright © 2017-2022 Pleroma Authors +# SPDX-License-Identifier: AGPL-3.0-only + defmodule Pleroma.Web.ActivityPub.SideEffects do @moduledoc """ This module looks at an inserted object and executes the side effects that it @@ -6,28 +10,161 @@ defmodule Pleroma.Web.ActivityPub.SideEffects do collection, and so on. """ alias Pleroma.Activity - alias Pleroma.Chat - alias Pleroma.Chat.MessageReference + alias Pleroma.FollowingRelationship alias Pleroma.Notification alias Pleroma.Object alias Pleroma.Repo alias Pleroma.User alias Pleroma.Web.ActivityPub.ActivityPub + alias Pleroma.Web.ActivityPub.Builder alias Pleroma.Web.ActivityPub.Pipeline alias Pleroma.Web.ActivityPub.Utils alias Pleroma.Web.Push alias Pleroma.Web.Streamer + alias Pleroma.Workers.PollWorker + + require Logger + + @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 \\ []) + # Task this handles + # - Follows + # - Sends a notification + @impl true + def handle( + %{ + data: %{ + "actor" => actor, + "type" => "Accept", + "object" => follow_activity_id + } + } = object, + meta + ) do + with %Activity{actor: follower_id} = follow_activity <- + Activity.get_by_ap_id(follow_activity_id), + %User{} = followed <- User.get_cached_by_ap_id(actor), + %User{} = follower <- User.get_cached_by_ap_id(follower_id), + {:ok, follow_activity} <- Utils.update_follow_state_for_all(follow_activity, "accept"), + {:ok, _follower, followed} <- + FollowingRelationship.update(follower, followed, :follow_accept) do + Notification.update_notification_type(followed, follow_activity) + end + + {:ok, object, meta} + end + + # Task this handles + # - Rejects all existing follow activities for this person + # - Updates the follow state + # - Dismisses notification + @impl true + def handle( + %{ + data: %{ + "actor" => actor, + "type" => "Reject", + "object" => follow_activity_id + } + } = object, + meta + ) do + with %Activity{actor: follower_id} = follow_activity <- + Activity.get_by_ap_id(follow_activity_id), + %User{} = followed <- User.get_cached_by_ap_id(actor), + %User{} = follower <- User.get_cached_by_ap_id(follower_id), + {:ok, _follow_activity} <- Utils.update_follow_state_for_all(follow_activity, "reject") do + FollowingRelationship.update(follower, followed, :follow_reject) + Notification.dismiss(follow_activity) + end + + {:ok, object, meta} + end + + # Tasks this handle + # - Follows if possible + # - Sends a notification + # - Generates accept or reject if appropriate + @impl true + def handle( + %{ + data: %{ + "id" => follow_id, + "type" => "Follow", + "object" => followed_user, + "actor" => following_user + } + } = object, + meta + ) do + with %User{} = follower <- User.get_cached_by_ap_id(following_user), + %User{} = followed <- User.get_cached_by_ap_id(followed_user), + {_, {:ok, _, _}, _, _} <- + {:following, User.follow(follower, followed, :follow_pending), follower, followed} do + if followed.local && !followed.is_locked do + {:ok, accept_data, _} = Builder.accept(followed, object) + {:ok, _activity, _} = Pipeline.common_pipeline(accept_data, local: true) + end + else + {:following, {:error, _}, _follower, followed} -> + {:ok, reject_data, _} = Builder.reject(followed, object) + {:ok, _activity, _} = Pipeline.common_pipeline(reject_data, local: true) + + _ -> + nil + end + + {:ok, notifications} = Notification.create_notifications(object, do_send: false) + + meta = + meta + |> add_notifications(notifications) + + updated_object = Activity.get_by_ap_id(follow_id) + + {:ok, updated_object, meta} + end + + # Tasks this handles: + # - Unfollow and block + @impl true + def handle( + %{data: %{"type" => "Block", "object" => blocked_user, "actor" => blocking_user}} = + object, + meta + ) do + with %User{} = blocker <- User.get_cached_by_ap_id(blocking_user), + %User{} = blocked <- User.get_cached_by_ap_id(blocked_user) do + User.block(blocker, blocked) + end + + {:ok, object, meta} + end + # Tasks this handles: - # Update the user + # - Update the user + # + # For a local user, we also get a changeset with the full information, so we + # can update non-federating, non-activitypub settings as well. + @impl true def handle(%{data: %{"type" => "Update", "object" => updated_object}} = object, meta) do - {:ok, new_user_data} = ActivityPub.user_data_from_user_object(updated_object) + if changeset = Keyword.get(meta, :user_update_changeset) do + changeset + |> User.update_and_set_cache() + else + {:ok, new_user_data} = ActivityPub.user_data_from_user_object(updated_object) - User.get_by_ap_id(updated_object["id"]) - |> User.remote_user_changeset(new_user_data) - |> User.update_and_set_cache() + User.get_by_ap_id(updated_object["id"]) + |> User.remote_user_changeset(new_user_data) + |> User.update_and_set_cache() + end {:ok, object, meta} end @@ -35,6 +172,7 @@ defmodule Pleroma.Web.ActivityPub.SideEffects do # Tasks this handles: # - Add like to object # - Set up notification + @impl true def handle(%{data: %{"type" => "Like"}} = object, meta) do liked_object = Object.get_by_ap_id(object.data["object"]) Utils.add_like_to_object(object, liked_object) @@ -47,15 +185,49 @@ defmodule Pleroma.Web.ActivityPub.SideEffects do # Tasks this handles # - Actually create object # - Rollback if we couldn't create it + # - Increase the user note count + # - Increase the reply count + # - 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], 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["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) @@ -66,6 +238,7 @@ defmodule Pleroma.Web.ActivityPub.SideEffects do # - Add announce to object # - Set up notification # - Stream out the announce + @impl true def handle(%{data: %{"type" => "Announce"}} = object, meta) do announced_object = Object.get_by_ap_id(object.data["object"]) user = User.get_cached_by_ap_id(object.data["actor"]) @@ -74,12 +247,14 @@ defmodule Pleroma.Web.ActivityPub.SideEffects do if !User.is_internal_user?(user) do Notification.create_notifications(object) - ActivityPub.stream_out(object) + + ap_streamer().stream_out(object) end {:ok, object, meta} end + @impl true def handle(%{data: %{"type" => "Undo", "object" => undone_object}} = object, meta) do with undone_object <- Activity.get_by_ap_id(undone_object), :ok <- handle_undoing(undone_object) do @@ -90,6 +265,7 @@ defmodule Pleroma.Web.ActivityPub.SideEffects do # Tasks this handles: # - Add reaction to object # - Set up notification + @impl true def handle(%{data: %{"type" => "EmojiReact"}} = object, meta) do reacted_object = Object.get_by_ap_id(object.data["object"]) Utils.add_emoji_reaction_to_object(object, reacted_object) @@ -106,16 +282,20 @@ defmodule Pleroma.Web.ActivityPub.SideEffects do # - 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 = - Object.normalize(deleted_object, false) || User.get_cached_by_ap_id(deleted_object) + Object.normalize(deleted_object, fetch: false) || + User.get_cached_by_ap_id(deleted_object) result = case deleted_object do %Object{} -> - with {:ok, deleted_object, activity} <- Object.delete(deleted_object), - %User{} = user <- User.get_cached_by_ap_id(deleted_object.data["actor"]) do - User.remove_pinnned_activity(user, activity) + 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_pinned_object_id(user, deleted_object.data["id"]) {:ok, user} = ActivityPub.decrease_note_count_if_public(user, deleted_object) @@ -123,11 +303,13 @@ defmodule Pleroma.Web.ActivityPub.SideEffects do Object.decrease_replies_count(in_reply_to) end - MessageReference.delete_for_object(deleted_object) - - ActivityPub.stream_out(object) - ActivityPub.stream_out_participations(deleted_object, user) + ap_streamer().stream_out(object) + ap_streamer().stream_out_participations(deleted_object, user) :ok + else + {:actor, _} -> + @logger.error("The object doesn't have an actor: #{inspect(deleted_object)}") + :no_object_actor end %User{} -> @@ -138,58 +320,126 @@ defmodule Pleroma.Web.ActivityPub.SideEffects do 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 + # Tasks this handles: + # - adds pin to user + # - removes expiration job for pinned activity, if was set for expiration + @impl true + 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 + + {: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 + + # 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" => "ChatMessage"} = object, meta) do + def handle_object_creation(%{"type" => "Question"} = 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.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) - - { - ["user", "user:pleroma_chat"], - {user, %{cm_ref | chat: chat, object: object}} - } - end - end) - |> Enum.filter(& &1) + PollWorker.schedule_poll_end(activity) + {:ok, object, meta} + end + end - meta = - meta - |> add_streamables(streamables) + def handle_object_creation(%{"type" => "Answer"} = object_map, _activity, meta) do + with {:ok, object, meta} <- Pipeline.common_pipeline(object_map, meta) do + Object.increase_vote_count( + object.data["inReplyTo"], + object.data["name"], + object.data["actor"] + ) + + {:ok, object, meta} + end + end + def handle_object_creation(%{"type" => objtype} = object, _activity, meta) + 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 end # Nothing to do - def handle_object_creation(object) do - {:ok, object} + def handle_object_creation(object, _activity, meta) do + {:ok, object, meta} end - def handle_undoing(%{data: %{"type" => "Like"}} = object) do - with %Object{} = liked_object <- Object.get_by_ap_id(object.data["object"]), - {:ok, _} <- Utils.remove_like_from_object(object, liked_object), - {:ok, _} <- Repo.delete(object) do - :ok + defp undo_like(nil, object), do: delete_object(object) + + defp undo_like(%Object{} = liked_object, object) do + with {:ok, _} <- Utils.remove_like_from_object(object, liked_object) do + delete_object(object) end end + def handle_undoing(%{data: %{"type" => "Like"}} = object) do + object.data["object"] + |> Object.get_by_ap_id() + |> undo_like(object) + end + def handle_undoing(%{data: %{"type" => "EmojiReact"}} = object) do with %Object{} = reacted_object <- Object.get_by_ap_id(object.data["object"]), {:ok, _} <- Utils.remove_emoji_reaction_from_object(object, reacted_object), @@ -219,6 +469,11 @@ defmodule Pleroma.Web.ActivityPub.SideEffects do def handle_undoing(object), do: {:error, ["don't know how to handle", object]} + @spec delete_object(Object.t()) :: :ok | {:error, Ecto.Changeset.t()} + defp delete_object(object) do + with {:ok, _} <- Repo.delete(object), do: :ok + end + defp send_notifications(meta) do Keyword.get(meta, :notifications, []) |> Enum.each(fn notification -> @@ -238,13 +493,6 @@ defmodule Pleroma.Web.ActivityPub.SideEffects do 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, []) @@ -252,6 +500,7 @@ defmodule Pleroma.Web.ActivityPub.SideEffects do |> Keyword.put(:notifications, notifications ++ existing) end + @impl true def handle_after_transaction(meta) do meta |> send_notifications()