# 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.Federator do
alias Pleroma.Web.ActivityPub.Transmogrifier
alias Pleroma.Web.ActivityPub.Utils
alias Pleroma.Web.Federator.Publisher
- alias Pleroma.Web.Federator.RetryQueue
- alias Pleroma.Web.WebFinger
- alias Pleroma.Web.Websub
+ alias Pleroma.Workers.PublisherWorker
+ alias Pleroma.Workers.ReceiverWorker
require Logger
- @websub Application.get_env(:pleroma, :websub)
- @ostatus Application.get_env(:pleroma, :ostatus)
-
- def init do
- # 1 minute
- Process.sleep(1000 * 60)
- refresh_subscriptions()
+ @doc """
+ Returns `true` if the distance to target object does not exceed max configured value.
+ Serves to prevent fetching of very long threads, especially useful on smaller instances.
+ Addresses [memory leaks on recursive replies fetching](https://git.pleroma.social/pleroma/pleroma/issues/161).
+ Applies to fetching of both ancestor (reply-to) and child (reply) objects.
+ """
+ # credo:disable-for-previous-line Credo.Check.Readability.MaxLineLength
+ def allowed_thread_distance?(distance) do
+ max_distance = Pleroma.Config.get([:instance, :federation_incoming_replies_max_depth])
+
+ if max_distance && max_distance >= 0 do
+ # Default depth is 0 (an object has zero distance from itself in its thread)
+ (distance || 0) <= max_distance
+ else
+ true
+ end
end
# Client API
- def incoming_doc(doc) do
- PleromaJobQueue.enqueue(:federator_incoming, __MODULE__, [:incoming_doc, doc])
- end
-
def incoming_ap_doc(params) do
- PleromaJobQueue.enqueue(:federator_incoming, __MODULE__, [:incoming_ap_doc, params])
- end
-
- def publish(activity, priority \\ 1) do
- PleromaJobQueue.enqueue(:federator_outgoing, __MODULE__, [:publish, activity], priority)
+ ReceiverWorker.enqueue("incoming_ap_doc", %{"params" => params})
end
- def verify_websub(websub) do
- PleromaJobQueue.enqueue(:federator_outgoing, __MODULE__, [:verify_websub, websub])
+ def publish(%{id: "pleroma:fakeid"} = activity) do
+ perform(:publish, activity)
end
- def request_subscription(sub) do
- PleromaJobQueue.enqueue(:federator_outgoing, __MODULE__, [:request_subscription, sub])
- end
-
- def refresh_subscriptions do
- PleromaJobQueue.enqueue(:federator_outgoing, __MODULE__, [:refresh_subscriptions])
+ def publish(activity) do
+ PublisherWorker.enqueue("publish", %{"activity_id" => activity.id})
end
# Job Worker Callbacks
- def perform(:refresh_subscriptions) do
- Logger.debug("Federator running refresh subscriptions")
- Websub.refresh_subscriptions()
-
- spawn(fn ->
- # 6 hours
- Process.sleep(1000 * 60 * 60 * 6)
- refresh_subscriptions()
- end)
- end
-
- def perform(:request_subscription, websub) do
- Logger.debug("Refreshing #{websub.topic}")
-
- with {:ok, websub} <- Websub.request_subscription(websub) do
- Logger.debug("Successfully refreshed #{websub.topic}")
- else
- _e -> Logger.debug("Couldn't refresh #{websub.topic}")
- end
+ @spec perform(atom(), module(), any()) :: {:ok, any()} | {:error, any()}
+ def perform(:publish_one, module, params) do
+ apply(module, :publish_one, [params])
end
def perform(:publish, activity) do
Logger.debug(fn -> "Running publish for #{activity.data["id"]}" end)
- with actor when not is_nil(actor) <- User.get_cached_by_ap_id(activity.data["actor"]) do
- {:ok, actor} = WebFinger.ensure_keys_present(actor)
-
+ with %User{} = actor <- User.get_cached_by_ap_id(activity.data["actor"]),
+ {:ok, actor} <- User.ensure_keys_present(actor) do
Publisher.publish(actor, activity)
end
end
- def perform(:verify_websub, websub) do
- Logger.debug(fn ->
- "Running WebSub verification for #{websub.id} (#{websub.topic}, #{websub.callback})"
- end)
-
- @websub.verify(websub)
- end
-
- def perform(:incoming_doc, doc) do
- Logger.info("Got document, trying to parse")
- @ostatus.handle_incoming(doc)
- end
-
def perform(:incoming_ap_doc, params) do
- Logger.info("Handling incoming AP activity")
+ Logger.debug("Handling incoming AP activity")
- params = Utils.normalize_params(params)
+ actor =
+ params
+ |> Map.get("actor")
+ |> Utils.get_ap_id()
# NOTE: we use the actor ID to do the containment, this is fine because an
# actor shouldn't be acting on objects outside their own AP server.
- with {:ok, _user} <- ap_enabled_actor(params["actor"]),
+ with {_, {:ok, _user}} <- {:actor, ap_enabled_actor(actor)},
nil <- Activity.normalize(params["id"]),
- :ok <- Containment.contain_origin_from_id(params["actor"], params),
+ {_, :ok} <-
+ {:correct_origin?, Containment.contain_origin_from_id(actor, params)},
{:ok, activity} <- Transmogrifier.handle_incoming(params) do
{:ok, activity}
else
- %Activity{} ->
- Logger.info("Already had #{params["id"]}")
- :error
+ {:correct_origin?, _} ->
+ Logger.debug("Origin containment failure for #{params["id"]}")
+ {:error, :origin_containment_failed}
- _e ->
- # Just drop those for now
- Logger.info("Unhandled activity")
- Logger.info(Jason.encode!(params, pretty: true))
- :error
- end
- end
+ %Activity{} ->
+ Logger.debug("Already had #{params["id"]}")
+ {:error, :already_present}
- def perform(
- :publish_single_websub,
- %{xml: _xml, topic: _topic, callback: _callback, secret: _secret} = params
- ) do
- case Websub.publish_one(params) do
- {:ok, _} ->
- :ok
+ {:actor, e} ->
+ Logger.debug("Unhandled actor #{actor}, #{inspect(e)}")
+ {:error, e}
- {:error, _} ->
- RetryQueue.enqueue(params, Websub)
+ e ->
+ # Just drop those for now
+ Logger.debug(fn -> "Unhandled activity\n" <> Jason.encode!(params, pretty: true) end)
+ {:error, e}
end
end
- def perform(type, _) do
- Logger.debug(fn -> "Unknown task: #{type}" end)
- {:error, "Don't know what to do with this"}
- end
-
def ap_enabled_actor(id) do
user = User.get_cached_by_ap_id(id)
projects / akkoma / blobdiff