defmodule Pleroma.Web.Federator do
+ use GenServer
alias Pleroma.User
+ alias Pleroma.Activity
+ alias Pleroma.Web.{WebFinger, Websub}
+ alias Pleroma.Web.ActivityPub.ActivityPub
+ alias Pleroma.Web.ActivityPub.Transmogrifier
require Logger
- @websub_verifier Application.get_env(:pleroma, :websub_verifier)
+ @websub Application.get_env(:pleroma, :websub)
+ @ostatus Application.get_env(:pleroma, :ostatus)
+ @httpoison Application.get_env(:pleroma, :httpoison)
+ @instance Application.get_env(:pleroma, :instance)
+ @federating Keyword.get(@instance, :federating)
+ @max_jobs 20
+
+ def start_link do
+ spawn(fn ->
+ Process.sleep(1000 * 60 * 1) # 1 minute
+ enqueue(:refresh_subscriptions, nil)
+ end)
+ GenServer.start_link(__MODULE__, %{
+ in: {:sets.new(), []},
+ out: {:sets.new(), []}
+ }, name: __MODULE__)
+ end
+
+ def handle(:refresh_subscriptions, _) do
+ Logger.debug("Federator running refresh subscriptions")
+ Websub.refresh_subscriptions()
+ spawn(fn ->
+ Process.sleep(1000 * 60 * 60 * 6) # 6 hours
+ enqueue(:refresh_subscriptions, nil)
+ end)
+ end
+
+ def handle(: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
+ end
def handle(:publish, activity) do
- Logger.debug("Running publish for #{activity.data["id"]}")
+ 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
- Pleroma.Web.Websub.publish(Pleroma.Web.OStatus.feed_path(actor), actor, activity)
+ {:ok, actor} = WebFinger.ensure_keys_present(actor)
+ if ActivityPub.is_public?(activity) do
+ Logger.info(fn -> "Sending #{activity.data["id"]} out via WebSub" end)
+ Websub.publish(Pleroma.Web.OStatus.feed_path(actor), actor, activity)
+
+ Logger.info(fn -> "Sending #{activity.data["id"]} out via Salmon" end)
+ Pleroma.Web.Salmon.publish(actor, activity)
+ end
+
+ Logger.info(fn -> "Sending #{activity.data["id"]} out via AP" end)
+ Pleroma.Web.ActivityPub.ActivityPub.publish(actor, activity)
end
end
def handle(:verify_websub, websub) do
- Logger.debug("Running websub verification for #{websub.id} (#{websub.topic}, #{websub.callback})")
- @websub_verifier.verify(websub)
+ Logger.debug(fn -> "Running WebSub verification for #{websub.id} (#{websub.topic}, #{websub.callback})" end)
+ @websub.verify(websub)
+ end
+
+ def handle(:incoming_doc, doc) do
+ Logger.info("Got document, trying to parse")
+ @ostatus.handle_incoming(doc)
+ end
+
+ def handle(:incoming_ap_doc, params) do
+ Logger.info("Handling incoming AP activity")
+ with {:ok, _user} <- ap_enabled_actor(params["actor"]),
+ nil <- Activity.get_by_ap_id(params["id"]),
+ {:ok, activity} <- Transmogrifier.handle_incoming(params) do
+ else
+ %Activity{} ->
+ Logger.info("Already had #{params["id"]}")
+ e ->
+ # Just drop those for now
+ Logger.info("Unhandled activity")
+ Logger.info(Poison.encode!(params, [pretty: 2]))
+ end
+ end
+
+ def handle(:publish_single_ap, params) do
+ ActivityPub.publish_one(params)
+ end
+
+ def handle(:publish_single_websub, %{xml: xml, topic: topic, callback: callback, secret: secret}) do
+ signature = @websub.sign(secret || "", xml)
+ Logger.debug(fn -> "Pushing #{topic} to #{callback}" end)
+
+ with {:ok, %{status_code: code}} <- @httpoison.post(callback, xml, [
+ {"Content-Type", "application/atom+xml"},
+ {"X-Hub-Signature", "sha1=#{signature}"}
+ ], timeout: 10000, recv_timeout: 20000, hackney: [pool: :default]) do
+ Logger.debug(fn -> "Pushed to #{callback}, code #{code}" end)
+ else e ->
+ Logger.debug(fn -> "Couldn't push to #{callback}, #{inspect(e)}" end)
+ end
+ end
+
+ def handle(type, _) do
+ Logger.debug(fn -> "Unknown task: #{type}" end)
+ {:error, "Don't know what to do with this"}
+ end
+
+ def enqueue(type, payload, priority \\ 1) do
+ if @federating do
+ if Mix.env == :test do
+ handle(type, payload)
+ else
+ GenServer.cast(__MODULE__, {:enqueue, type, payload, priority})
+ end
+ end
+ end
+
+ def maybe_start_job(running_jobs, queue) do
+ if (:sets.size(running_jobs) < @max_jobs) && queue != [] do
+ {{type, payload}, queue} = queue_pop(queue)
+ {:ok, pid} = Task.start(fn -> handle(type, payload) end)
+ mref = Process.monitor(pid)
+ {:sets.add_element(mref, running_jobs), queue}
+ else
+ {running_jobs, queue}
+ end
+ end
+
+ def handle_cast({:enqueue, type, payload, priority}, state) when type in [:incoming_doc, :incoming_ap_doc] do
+ %{in: {i_running_jobs, i_queue}, out: {o_running_jobs, o_queue}} = state
+ i_queue = enqueue_sorted(i_queue, {type, payload}, 1)
+ {i_running_jobs, i_queue} = maybe_start_job(i_running_jobs, i_queue)
+ {:noreply, %{in: {i_running_jobs, i_queue}, out: {o_running_jobs, o_queue}}}
+ end
+
+ def handle_cast({:enqueue, type, payload, priority}, state) do
+ %{in: {i_running_jobs, i_queue}, out: {o_running_jobs, o_queue}} = state
+ o_queue = enqueue_sorted(o_queue, {type, payload}, 1)
+ {o_running_jobs, o_queue} = maybe_start_job(o_running_jobs, o_queue)
+ {:noreply, %{in: {i_running_jobs, i_queue}, out: {o_running_jobs, o_queue}}}
+ end
+
+ def handle_cast(m, state) do
+ IO.inspect("Unknown: #{inspect(m)}, #{inspect(state)}")
+ {:noreply, state}
+ end
+
+ def handle_info({:DOWN, ref, :process, _pid, _reason}, state) do
+ %{in: {i_running_jobs, i_queue}, out: {o_running_jobs, o_queue}} = state
+ i_running_jobs = :sets.del_element(ref, i_running_jobs)
+ o_running_jobs = :sets.del_element(ref, o_running_jobs)
+ {i_running_jobs, i_queue} = maybe_start_job(i_running_jobs, i_queue)
+ {o_running_jobs, o_queue} = maybe_start_job(o_running_jobs, o_queue)
+
+ {:noreply, %{in: {i_running_jobs, i_queue}, out: {o_running_jobs, o_queue}}}
+ end
+
+ def enqueue_sorted(queue, element, priority) do
+ [%{item: element, priority: priority} | queue]
+ |> Enum.sort_by(fn (%{priority: priority}) -> priority end)
end
- def handle(type, payload) do
- Logger.debug("Unknown task: #{type}")
- {:error, "Don't know what do do with this"}
+ def queue_pop([%{item: element} | queue]) do
+ {element, queue}
end
- def enqueue(type, payload) do
- # for now, just run immediately in a new process.
- if Mix.env == :test do
- handle(type, payload)
+ def ap_enabled_actor(id) do
+ user = User.get_by_ap_id(id)
+ if User.ap_enabled?(user) do
+ {:ok, user}
else
- spawn(fn -> handle(type, payload) end)
+ ActivityPub.make_user_from_ap_id(id)
end
end
end
projects / akkoma / blobdiff