75 lines
2 KiB
Elixir
75 lines
2 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Workers.PurgeExpiredActivity do
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@moduledoc """
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Worker which purges expired activity.
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"""
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use Oban.Worker, queue: :activity_expiration, max_attempts: 1, unique: [period: :infinity]
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import Ecto.Query
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alias Pleroma.Activity
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@spec enqueue(map()) ::
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{:ok, Oban.Job.t()}
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| {:error, :expired_activities_disabled}
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| {:error, :expiration_too_close}
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def enqueue(args) do
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with true <- enabled?() do
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{scheduled_at, args} = Map.pop(args, :expires_at)
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args
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|> new(scheduled_at: scheduled_at)
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|> Oban.insert()
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end
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end
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@impl true
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def perform(%Oban.Job{args: %{"activity_id" => id}}) do
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with %Activity{} = activity <- find_activity(id),
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%Pleroma.User{} = user <- find_user(activity.object.data["actor"]) do
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Pleroma.Web.CommonAPI.delete(activity.id, user)
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end
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end
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@impl Oban.Worker
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def timeout(_job), do: :timer.seconds(5)
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defp enabled? do
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with false <- Pleroma.Config.get([__MODULE__, :enabled], false) do
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{:error, :expired_activities_disabled}
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end
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end
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defp find_activity(id) do
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with nil <- Activity.get_by_id_with_object(id) do
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{:error, :activity_not_found}
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end
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end
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defp find_user(ap_id) do
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with nil <- Pleroma.User.get_by_ap_id(ap_id) do
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{:error, :user_not_found}
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end
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end
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def get_expiration(id) do
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from(j in Oban.Job,
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where: j.state == "scheduled",
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where: j.queue == "activity_expiration",
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where: fragment("?->>'activity_id' = ?", j.args, ^id)
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)
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|> Pleroma.Repo.one()
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end
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@spec expires_late_enough?(DateTime.t()) :: boolean()
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def expires_late_enough?(scheduled_at) do
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now = DateTime.utc_now()
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diff = DateTime.diff(scheduled_at, now, :millisecond)
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min_lifetime = Pleroma.Config.get([__MODULE__, :min_lifetime], 600)
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diff > :timer.seconds(min_lifetime)
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end
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end
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