# Pleroma: A lightweight social networking server
-# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicy do
@moduledoc "Preloads any attachments in the MediaProxy cache by prefetching them"
- @behaviour Pleroma.Web.ActivityPub.MRF
+ @behaviour Pleroma.Web.ActivityPub.MRF.Policy
alias Pleroma.HTTP
alias Pleroma.Web.MediaProxy
- alias Pleroma.Workers.BackgroundWorker
require Logger
- @options [
- pool: :media
+ @adapter_options [
+ pool: :media,
+ recv_timeout: 10_000
]
- def perform(:prefetch, url) do
- Logger.debug("Prefetching #{inspect(url)}")
+ defp prefetch(url) do
+ # Fetching only proxiable resources
+ if MediaProxy.enabled?() and MediaProxy.url_proxiable?(url) do
+ # If preview proxy is enabled, it'll also hit media proxy (so we're caching both requests)
+ prefetch_url = MediaProxy.preview_url(url)
- opts =
- if Application.get_env(:tesla, :adapter) == Tesla.Adapter.Hackney do
- Keyword.put(@options, :recv_timeout, 10_000)
+ Logger.debug("Prefetching #{inspect(url)} as #{inspect(prefetch_url)}")
+
+ if Pleroma.Config.get(:env) == :test do
+ fetch(prefetch_url)
else
- @options
+ ConcurrentLimiter.limit(__MODULE__, fn ->
+ Task.start(fn -> fetch(prefetch_url) end)
+ end)
end
-
- url
- |> MediaProxy.url()
- |> HTTP.get([], adapter: opts)
+ end
end
- def perform(:preload, %{"object" => %{"attachment" => attachments}} = _message) do
+ defp fetch(url), do: HTTP.get(url, [], @adapter_options)
+
+ defp preload(%{"object" => %{"attachment" => attachments}} = _message) do
Enum.each(attachments, fn
%{"url" => url} when is_list(url) ->
url
|> Enum.each(fn
%{"href" => href} ->
- BackgroundWorker.enqueue("media_proxy_prefetch", %{"url" => href})
+ prefetch(href)
x ->
Logger.debug("Unhandled attachment URL object #{inspect(x)}")
%{"type" => "Create", "object" => %{"attachment" => attachments} = _object} = message
)
when is_list(attachments) and length(attachments) > 0 do
- BackgroundWorker.enqueue("media_proxy_preload", %{"message" => message})
+ preload(message)
{:ok, message}
end