90 lines
		
	
	
	
		
			2.8 KiB
		
	
	
	
		
			Elixir
		
	
	
	
	
	
			
		
		
	
	
			90 lines
		
	
	
	
		
			2.8 KiB
		
	
	
	
		
			Elixir
		
	
	
	
	
	
defmodule Pleroma.Web.Federator do
 | 
						|
  use GenServer
 | 
						|
  alias Pleroma.User
 | 
						|
  alias Pleroma.Web.{WebFinger, Websub}
 | 
						|
  require Logger
 | 
						|
 | 
						|
  @websub Application.get_env(:pleroma, :websub)
 | 
						|
  @ostatus Application.get_env(:pleroma, :ostatus)
 | 
						|
  @max_jobs 10
 | 
						|
 | 
						|
  def start_link do
 | 
						|
    spawn(fn ->
 | 
						|
      Process.sleep(1000 * 60 * 1) # 1 minute
 | 
						|
      enqueue(:refresh_subscriptions, nil)
 | 
						|
    end)
 | 
						|
    GenServer.start_link(__MODULE__, {:sets.new(), :queue.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(: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
 | 
						|
      Logger.debug(fn -> "Sending #{activity.data["id"]} out via websub" end)
 | 
						|
      Websub.publish(Pleroma.Web.OStatus.feed_path(actor), actor, activity)
 | 
						|
 | 
						|
      {:ok, actor} = WebFinger.ensure_keys_present(actor)
 | 
						|
      Logger.debug(fn -> "Sending #{activity.data["id"]} out via salmon" end)
 | 
						|
      Pleroma.Web.Salmon.publish(actor, activity)
 | 
						|
    end
 | 
						|
  end
 | 
						|
 | 
						|
  def handle(:verify_websub, websub) do
 | 
						|
    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.debug("Got document, trying to parse")
 | 
						|
    @ostatus.handle_incoming(doc)
 | 
						|
  end
 | 
						|
 | 
						|
  def handle(type, payload) do
 | 
						|
    Logger.debug(fn -> "Unknown task: #{type}" end)
 | 
						|
    {:error, "Don't know what do do with this"}
 | 
						|
  end
 | 
						|
 | 
						|
  def enqueue(type, payload) do
 | 
						|
    if Mix.env == :test do
 | 
						|
      handle(type, payload)
 | 
						|
    else
 | 
						|
      GenServer.cast(__MODULE__, {:enqueue, type, payload})
 | 
						|
    end
 | 
						|
  end
 | 
						|
 | 
						|
  def maybe_start_job(running_jobs, queue) do
 | 
						|
    if (:sets.size(running_jobs) < @max_jobs) && !:queue.is_empty(queue) do
 | 
						|
      {{:value, {type, payload}}, queue} = :queue.out(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}, {running_jobs, queue}) do
 | 
						|
    queue = :queue.in({type, payload}, queue)
 | 
						|
    {running_jobs, queue} = maybe_start_job(running_jobs, queue)
 | 
						|
    {:noreply, {running_jobs, queue}}
 | 
						|
  end
 | 
						|
 | 
						|
  def handle_info({:DOWN, ref, :process, _pid, _reason}, {running_jobs, queue}) do
 | 
						|
    running_jobs = :sets.del_element(ref, running_jobs)
 | 
						|
    {running_jobs, queue} = maybe_start_job(running_jobs, queue)
 | 
						|
    {:noreply, {running_jobs, queue}}
 | 
						|
  end
 | 
						|
 | 
						|
  def handle_cast(m, state) do
 | 
						|
    IO.inspect("Unknown: #{inspect(m)}, #{inspect(state)}")
 | 
						|
    {:noreply, state}
 | 
						|
  end
 | 
						|
end
 |