[#1149] Addressed code review comments (code style, jobs pruning etc.).

lib/pleroma/activity_expiration_worker.ex

@@ -9,13 +9,13 @@ defmodule Pleroma.ActivityExpirationWorker do
   alias Pleroma.Repo
   alias Pleroma.User
   alias Pleroma.Web.CommonAPI
-  alias Pleroma.Workers.BackgroundWorker
+  alias Pleroma.Workers.ActivityExpirationWorker
 
   require Logger
   use GenServer
   import Ecto.Query
 
-  defdelegate worker_args(queue), to: Pleroma.Workers.Helper
+  import Pleroma.Workers.WorkerHelper, only: [worker_args: 1]
 
   @schedule_interval :timer.minutes(1)
 
@@ -57,7 +57,7 @@ defmodule Pleroma.ActivityExpirationWorker do
         "op" => "activity_expiration",
         "activity_expiration_id" => expiration.id
       }
-      |> BackgroundWorker.new(worker_args(:activity_expiration))
+      |> ActivityExpirationWorker.new(worker_args(:activity_expiration))
       |> Repo.insert()
     end)
 

lib/pleroma/application.ex

@@ -43,7 +43,7 @@ defmodule Pleroma.Application do
         hackney_pool_children() ++
         [
           Pleroma.Stats,
-          {Oban, Application.get_env(:pleroma, Oban)},
+          {Oban, Pleroma.Config.get(Oban)},
           %{
             id: :web_push_init,
             start: {Task, :start_link, [&Pleroma.Web.Push.init/0]},

lib/pleroma/digest_email_worker.ex

@@ -4,11 +4,11 @@
 
 defmodule Pleroma.DigestEmailWorker do
   alias Pleroma.Repo
-  alias Pleroma.Workers.Mailer, as: MailerWorker
+  alias Pleroma.Workers.MailerWorker
 
   import Ecto.Query
 
-  defdelegate worker_args(queue), to: Pleroma.Workers.Helper
+  import Pleroma.Workers.WorkerHelper, only: [worker_args: 1]
 
   def perform do
     config = Pleroma.Config.get([:email_notifications, :digest])

lib/pleroma/emails/mailer.ex

@@ -10,7 +10,7 @@ defmodule Pleroma.Emails.Mailer do
   """
 
   alias Pleroma.Repo
-  alias Pleroma.Workers.Mailer, as: MailerWorker
+  alias Pleroma.Workers.MailerWorker
   alias Swoosh.DeliveryError
 
   @otp_app :pleroma
@@ -19,7 +19,7 @@ defmodule Pleroma.Emails.Mailer do
   @spec enabled?() :: boolean()
   def enabled?, do: Pleroma.Config.get([__MODULE__, :enabled])
 
-  defdelegate worker_args(queue), to: Pleroma.Workers.Helper
+  import Pleroma.Workers.WorkerHelper, only: [worker_args: 1]
 
   @doc "add email to queue"
   def deliver_async(email, config \\ []) do

lib/pleroma/scheduled_activity_worker.ex

@@ -18,7 +18,7 @@ defmodule Pleroma.ScheduledActivityWorker do
 
   @schedule_interval :timer.minutes(1)
 
-  defdelegate worker_args(queue), to: Pleroma.Workers.Helper
+  import Pleroma.Workers.WorkerHelper, only: [worker_args: 1]
 
   def start_link(_) do
     GenServer.start_link(__MODULE__, nil)

lib/pleroma/user.ex

@@ -41,7 +41,7 @@ defmodule Pleroma.User do
   @strict_local_nickname_regex ~r/^[a-zA-Z\d]+$/
   @extended_local_nickname_regex ~r/^[a-zA-Z\d_-]+$/
 
-  defdelegate worker_args(queue), to: Pleroma.Workers.Helper
+  import Pleroma.Workers.WorkerHelper, only: [worker_args: 1]
 
   schema "users" do
     field(:bio, :string)

lib/pleroma/web/activity_pub/activity_pub.ex

@@ -26,7 +26,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
   require Logger
   require Pleroma.Constants
 
-  defdelegate worker_args(queue), to: Pleroma.Workers.Helper
+  import Pleroma.Workers.WorkerHelper, only: [worker_args: 1]
 
   # For Announce activities, we filter the recipients based on following status for any actors
   # that match actual users.  See issue #164 for more information about why this is necessary.

lib/pleroma/web/activity_pub/mrf/mediaproxy_warming_policy.ex

@@ -18,7 +18,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicy do
     recv_timeout: 10_000
   ]
 
-  defdelegate worker_args(queue), to: Pleroma.Workers.Helper
+  import Pleroma.Workers.WorkerHelper, only: [worker_args: 1]
 
   def perform(:prefetch, url) do
     Logger.info("Prefetching #{inspect(url)}")

lib/pleroma/web/activity_pub/publisher.ex

@@ -85,7 +85,7 @@ defmodule Pleroma.Web.ActivityPub.Publisher do
   end
 
   def publish_one(%{actor_id: actor_id} = params) do
-    actor = User.get_by_id(actor_id)
+    actor = User.get_cached_by_id(actor_id)
 
     params
     |> Map.delete(:actor_id)

lib/pleroma/web/activity_pub/transmogrifier.ex

@@ -15,14 +15,14 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
   alias Pleroma.Web.ActivityPub.Utils
   alias Pleroma.Web.ActivityPub.Visibility
   alias Pleroma.Web.Federator
-  alias Pleroma.Workers.Transmogrifier, as: TransmogrifierWorker
+  alias Pleroma.Workers.TransmogrifierWorker
 
   import Ecto.Query
 
   require Logger
   require Pleroma.Constants
 
-  defdelegate worker_args(queue), to: Pleroma.Workers.Helper
+  import Pleroma.Workers.WorkerHelper, only: [worker_args: 1]
 
   @doc """
   Modifies an incoming AP object (mastodon format) to our internal format.

lib/pleroma/web/federator/federator.ex

@@ -12,13 +12,13 @@ defmodule Pleroma.Web.Federator do
   alias Pleroma.Web.Federator.Publisher
   alias Pleroma.Web.OStatus
   alias Pleroma.Web.Websub
-  alias Pleroma.Workers.Publisher, as: PublisherWorker
-  alias Pleroma.Workers.Receiver, as: ReceiverWorker
-  alias Pleroma.Workers.Subscriber, as: SubscriberWorker
+  alias Pleroma.Workers.PublisherWorker
+  alias Pleroma.Workers.ReceiverWorker
+  alias Pleroma.Workers.SubscriberWorker
 
   require Logger
 
-  defdelegate worker_args(queue), to: Pleroma.Workers.Helper
+  import Pleroma.Workers.WorkerHelper, only: [worker_args: 1]
 
   def init do
     # To do: consider removing this call in favor of scheduled execution (`quantum`-based)

lib/pleroma/web/federator/publisher.ex

@@ -6,7 +6,7 @@ defmodule Pleroma.Web.Federator.Publisher do
   alias Pleroma.Activity
   alias Pleroma.Config
   alias Pleroma.User
-  alias Pleroma.Workers.Publisher, as: PublisherWorker
+  alias Pleroma.Workers.PublisherWorker
 
   require Logger
 
@@ -31,12 +31,7 @@ defmodule Pleroma.Web.Federator.Publisher do
   """
   @spec enqueue_one(module(), Map.t()) :: :ok
   def enqueue_one(module, %{} = params) do
-    worker_args =
-      if max_attempts = Pleroma.Config.get([:workers, :retries, :federator_outgoing]) do
-        [max_attempts: max_attempts]
-      else
-        []
-      end
+    worker_args = Pleroma.Workers.WorkerHelper.worker_args(:federator_outgoing)
 
     %{"op" => "publish_one", "module" => to_string(module), "params" => params}
     |> PublisherWorker.new(worker_args)

lib/pleroma/web/oauth/token/clean_worker.ex

@@ -20,7 +20,7 @@ defmodule Pleroma.Web.OAuth.Token.CleanWorker do
   alias Pleroma.Web.OAuth.Token
   alias Pleroma.Workers.BackgroundWorker
 
-  defdelegate worker_args(queue), to: Pleroma.Workers.Helper
+  import Pleroma.Workers.WorkerHelper, only: [worker_args: 1]
 
   def start_link(_), do: GenServer.start_link(__MODULE__, %{})
 

lib/pleroma/web/push/push.ex

@@ -4,11 +4,11 @@
 
 defmodule Pleroma.Web.Push do
   alias Pleroma.Repo
-  alias Pleroma.Workers.WebPusher
+  alias Pleroma.Workers.WebPusherWorker
 
   require Logger
 
-  defdelegate worker_args(queue), to: Pleroma.Workers.Helper
+  import Pleroma.Workers.WorkerHelper, only: [worker_args: 1]
 
   def init do
     unless enabled() do
@@ -36,7 +36,7 @@ defmodule Pleroma.Web.Push do
 
   def send(notification) do
     %{"op" => "web_push", "notification_id" => notification.id}
-    |> WebPusher.new(worker_args(:web_push))
+    |> WebPusherWorker.new(worker_args(:web_push))
     |> Repo.insert()
   end
 end

lib/pleroma/web/salmon/salmon.ex

@@ -171,7 +171,7 @@ defmodule Pleroma.Web.Salmon do
   end
 
   def publish_one(%{recipient_id: recipient_id} = params) do
-    recipient = User.get_by_id(recipient_id)
+    recipient = User.get_cached_by_id(recipient_id)
 
     params
     |> Map.delete(:recipient_id)

lib/pleroma/workers/activity_expiration_worker.ex

@@ -0,0 +1,21 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Workers.ActivityExpirationWorker do
+  # Note: `max_attempts` is intended to be overridden in `new/2` call
+  use Oban.Worker,
+    queue: "activity_expiration",
+    max_attempts: 1
+
+  @impl Oban.Worker
+  def perform(
+        %{
+          "op" => "activity_expiration",
+          "activity_expiration_id" => activity_expiration_id
+        },
+        _job
+      ) do
+    Pleroma.ActivityExpirationWorker.perform(:execute, activity_expiration_id)
+  end
+end

lib/pleroma/workers/background_worker.ex

@@ -8,24 +8,24 @@ defmodule Pleroma.Workers.BackgroundWorker do
   alias Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicy
   alias Pleroma.Web.OAuth.Token.CleanWorker
 
-  # Note: `max_attempts` is intended to be overridden in `new/1` call
+  # Note: `max_attempts` is intended to be overridden in `new/2` call
   use Oban.Worker,
     queue: "background",
     max_attempts: 1
 
   @impl Oban.Worker
   def perform(%{"op" => "fetch_initial_posts", "user_id" => user_id}, _job) do
-    user = User.get_by_id(user_id)
+    user = User.get_cached_by_id(user_id)
     User.perform(:fetch_initial_posts, user)
   end
 
   def perform(%{"op" => "deactivate_user", "user_id" => user_id, "status" => status}, _job) do
-    user = User.get_by_id(user_id)
+    user = User.get_cached_by_id(user_id)
     User.perform(:deactivate_async, user, status)
   end
 
   def perform(%{"op" => "delete_user", "user_id" => user_id}, _job) do
-    user = User.get_by_id(user_id)
+    user = User.get_cached_by_id(user_id)
     User.perform(:delete, user)
   end
 
@@ -37,7 +37,7 @@ defmodule Pleroma.Workers.BackgroundWorker do
         },
         _job
       ) do
-    blocker = User.get_by_id(blocker_id)
+    blocker = User.get_cached_by_id(blocker_id)
     User.perform(:blocks_import, blocker, blocked_identifiers)
   end
 
@@ -49,7 +49,7 @@ defmodule Pleroma.Workers.BackgroundWorker do
         },
         _job
       ) do
-    follower = User.get_by_id(follower_id)
+    follower = User.get_cached_by_id(follower_id)
     User.perform(:follow_import, follower, followed_identifiers)
   end
 
@@ -69,11 +69,4 @@ defmodule Pleroma.Workers.BackgroundWorker do
     activity = Activity.get_by_id(activity_id)
     Pleroma.Web.RichMedia.Helpers.perform(:fetch, activity)
   end
-
-  def perform(
-        %{"op" => "activity_expiration", "activity_expiration_id" => activity_expiration_id},
-        _job
-      ) do
-    Pleroma.ActivityExpirationWorker.perform(:execute, activity_expiration_id)
-  end
 end

lib/pleroma/workers/helper.ex

@@ -1,13 +0,0 @@
-# Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
-# SPDX-License-Identifier: AGPL-3.0-only
-
-defmodule Pleroma.Workers.Helper do
-  def worker_args(queue) do
-    if max_attempts = Pleroma.Config.get([:workers, :retries, queue]) do
-      [max_attempts: max_attempts]
-    else
-      []
-    end
-  end
-end

lib/pleroma/workers/mailer_worker.ex

@@ -2,26 +2,25 @@
 # Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
-defmodule Pleroma.Workers.Mailer do
+defmodule Pleroma.Workers.MailerWorker do
   alias Pleroma.User
 
-  # Note: `max_attempts` is intended to be overridden in `new/1` call
+  # Note: `max_attempts` is intended to be overridden in `new/2` call
   use Oban.Worker,
     queue: "mailer",
     max_attempts: 1
 
   @impl Oban.Worker
   def perform(%{"op" => "email", "encoded_email" => encoded_email, "config" => config}, _job) do
-    email =
-      encoded_email
-      |> Base.decode64!()
-      |> :erlang.binary_to_term()
-
-    Pleroma.Emails.Mailer.deliver(email, config)
+    encoded_email
+    |> Base.decode64!()
+    |> :erlang.binary_to_term()
+    |> Pleroma.Emails.Mailer.deliver(config)
   end
 
   def perform(%{"op" => "digest_email", "user_id" => user_id}, _job) do
-    user = User.get_by_id(user_id)
-    Pleroma.DigestEmailWorker.perform(user)
+    user_id
+    |> User.get_cached_by_id()
+    |> Pleroma.DigestEmailWorker.perform()
   end
 end

lib/pleroma/workers/publisher_worker.ex

@@ -2,15 +2,19 @@
 # Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
-defmodule Pleroma.Workers.Publisher do
+defmodule Pleroma.Workers.PublisherWorker do
   alias Pleroma.Activity
   alias Pleroma.Web.Federator
 
-  # Note: `max_attempts` is intended to be overridden in `new/1` call
+  # Note: `max_attempts` is intended to be overridden in `new/2` call
   use Oban.Worker,
     queue: "federator_outgoing",
     max_attempts: 1
 
+  def backoff(attempt) when is_integer(attempt) do
+    Pleroma.Workers.WorkerHelper.sidekiq_backoff(attempt, 5)
+  end
+
   @impl Oban.Worker
   def perform(%{"op" => "publish", "activity_id" => activity_id}, _job) do
     activity = Activity.get_by_id(activity_id)

lib/pleroma/workers/receiver_worker.ex

@@ -2,10 +2,10 @@
 # Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
-defmodule Pleroma.Workers.Receiver do
+defmodule Pleroma.Workers.ReceiverWorker do
   alias Pleroma.Web.Federator
 
-  # Note: `max_attempts` is intended to be overridden in `new/1` call
+  # Note: `max_attempts` is intended to be overridden in `new/2` call
   use Oban.Worker,
     queue: "federator_incoming",
     max_attempts: 1

lib/pleroma/workers/scheduled_activity_worker.ex

@@ -3,7 +3,7 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Workers.ScheduledActivityWorker do
-  # Note: `max_attempts` is intended to be overridden in `new/1` call
+  # Note: `max_attempts` is intended to be overridden in `new/2` call
   use Oban.Worker,
     queue: "scheduled_activities",
     max_attempts: 1

lib/pleroma/workers/subscriber_worker.ex

@@ -2,12 +2,12 @@
 # Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
-defmodule Pleroma.Workers.Subscriber do
+defmodule Pleroma.Workers.SubscriberWorker do
   alias Pleroma.Repo
   alias Pleroma.Web.Federator
   alias Pleroma.Web.Websub
 
-  # Note: `max_attempts` is intended to be overridden in `new/1` call
+  # Note: `max_attempts` is intended to be overridden in `new/2` call
   use Oban.Worker,
     queue: "federator_outgoing",
     max_attempts: 1

lib/pleroma/workers/transmogrifier_worker.ex

@@ -2,17 +2,17 @@
 # Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
-defmodule Pleroma.Workers.Transmogrifier do
+defmodule Pleroma.Workers.TransmogrifierWorker do
   alias Pleroma.User
 
-  # Note: `max_attempts` is intended to be overridden in `new/1` call
+  # Note: `max_attempts` is intended to be overridden in `new/2` call
   use Oban.Worker,
     queue: "transmogrifier",
     max_attempts: 1
 
   @impl Oban.Worker
   def perform(%{"op" => "user_upgrade", "user_id" => user_id}, _job) do
-    user = User.get_by_id(user_id)
+    user = User.get_cached_by_id(user_id)
     Pleroma.Web.ActivityPub.Transmogrifier.perform(:user_upgrade, user)
   end
 end

lib/pleroma/workers/web_pusher_worker.ex

@@ -2,11 +2,11 @@
 # Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
-defmodule Pleroma.Workers.WebPusher do
+defmodule Pleroma.Workers.WebPusherWorker do
   alias Pleroma.Notification
   alias Pleroma.Repo
 
-  # Note: `max_attempts` is intended to be overridden in `new/1` call
+  # Note: `max_attempts` is intended to be overridden in `new/2` call
   use Oban.Worker,
     queue: "web_push",
     max_attempts: 1

lib/pleroma/workers/worker_helper.ex

@@ -0,0 +1,23 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Workers.WorkerHelper do
+  alias Pleroma.Config
+
+  def worker_args(queue) do
+    case Config.get([:workers, :retries, queue]) do
+      nil -> []
+      max_attempts -> [max_attempts: max_attempts]
+    end
+  end
+
+  def sidekiq_backoff(attempt, pow \\ 4, base_backoff \\ 15) do
+    backoff =
+      :math.pow(attempt, pow) +
+        base_backoff +
+        :rand.uniform(2 * base_backoff) * attempt
+
+    trunc(backoff)
+  end
+end