forked from AkkomaGang/akkoma
173 lines
5 KiB
Elixir
173 lines
5 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Config.TransferTask do
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use Task
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alias Pleroma.ConfigDB
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alias Pleroma.Repo
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require Logger
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@type env() :: :test | :benchmark | :dev | :prod
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@reboot_time_keys [
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{:pleroma, :hackney_pools},
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{:pleroma, :chat},
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{:pleroma, Oban},
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{:pleroma, :rate_limit},
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{:pleroma, :markup},
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{:plerome, :streamer}
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]
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@reboot_time_subkeys [
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{:pleroma, Pleroma.Captcha, [:seconds_valid]},
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{:pleroma, Pleroma.Upload, [:proxy_remote]},
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{:pleroma, :instance, [:upload_limit]},
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{:pleroma, :email_notifications, [:digest]},
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{:pleroma, :oauth2, [:clean_expired_tokens]},
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{:pleroma, Pleroma.ActivityExpiration, [:enabled]},
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{:pleroma, Pleroma.ScheduledActivity, [:enabled]},
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{:pleroma, :gopher, [:enabled]}
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]
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@reject [nil, :prometheus]
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def start_link(_) do
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load_and_update_env()
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if Pleroma.Config.get(:env) == :test, do: Ecto.Adapters.SQL.Sandbox.checkin(Repo)
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:ignore
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end
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@spec load_and_update_env([ConfigDB.t()]) :: :ok | false
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def load_and_update_env(deleted \\ [], restart_pleroma? \\ true) do
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with true <- Pleroma.Config.get(:configurable_from_database),
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true <- Ecto.Adapters.SQL.table_exists?(Repo, "config"),
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started_applications <- Application.started_applications() do
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# We need to restart applications for loaded settings take effect
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in_db = Repo.all(ConfigDB)
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with_deleted = in_db ++ deleted
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reject_for_restart = if restart_pleroma?, do: @reject, else: [:pleroma | @reject]
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applications =
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with_deleted
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|> Enum.map(&merge_and_update(&1))
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|> Enum.uniq()
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# TODO: some problem with prometheus after restart!
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|> Enum.reject(&(&1 in reject_for_restart))
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# to be ensured that pleroma will be restarted last
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applications =
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if :pleroma in applications do
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List.delete(applications, :pleroma) ++ [:pleroma]
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else
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applications
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end
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Enum.each(applications, &restart(started_applications, &1, Pleroma.Config.get(:env)))
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:ok
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end
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end
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defp merge_and_update(setting) do
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try do
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key = ConfigDB.from_string(setting.key)
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group = ConfigDB.from_string(setting.group)
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default = Pleroma.Config.Holder.config(group, key)
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value = ConfigDB.from_binary(setting.value)
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merged_value =
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if Ecto.get_meta(setting, :state) == :deleted do
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default
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else
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if can_be_merged?(default, value) do
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ConfigDB.merge_group(group, key, default, value)
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else
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value
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end
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end
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:ok = update_env(group, key, merged_value)
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if group != :logger do
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if group != :pleroma or pleroma_need_restart?(group, key, value) do
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group
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end
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else
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# change logger configuration in runtime, without restart
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if Keyword.keyword?(merged_value) and
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key not in [:compile_time_application, :backends, :compile_time_purge_matching] do
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Logger.configure_backend(key, merged_value)
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else
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Logger.configure([{key, merged_value}])
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end
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nil
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end
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rescue
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error ->
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error_msg =
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"updating env causes error, group: " <>
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inspect(setting.group) <>
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" key: " <>
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inspect(setting.key) <>
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" value: " <>
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inspect(ConfigDB.from_binary(setting.value)) <> " error: " <> inspect(error)
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Logger.warn(error_msg)
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nil
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end
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end
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@spec pleroma_need_restart?(atom(), atom(), any()) :: boolean()
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def pleroma_need_restart?(group, key, value) do
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group_and_key_need_reboot?(group, key) or group_and_subkey_need_reboot?(group, key, value)
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end
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defp group_and_key_need_reboot?(group, key) do
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Enum.any?(@reboot_time_keys, fn {g, k} -> g == group and k == key end)
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end
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defp group_and_subkey_need_reboot?(group, key, value) do
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Keyword.keyword?(value) and
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Enum.any?(@reboot_time_subkeys, fn {g, k, subkeys} ->
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g == group and k == key and
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Enum.any?(Keyword.keys(value), &(&1 in subkeys))
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end)
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end
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defp update_env(group, key, nil), do: Application.delete_env(group, key)
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defp update_env(group, key, value), do: Application.put_env(group, key, value)
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defp restart(_, :pleroma, :test), do: Logger.warn("pleroma restarted")
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defp restart(_, :pleroma, _), do: send(Restarter.Pleroma, :after_boot)
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defp restart(started_applications, app, _) do
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with {^app, _, _} <- List.keyfind(started_applications, app, 0),
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:ok <- Application.stop(app) do
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:ok = Application.start(app)
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else
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nil ->
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Logger.warn("#{app} is not started.")
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error ->
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error
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|> inspect()
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|> Logger.warn()
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end
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end
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defp can_be_merged?(val1, val2) when is_list(val1) and is_list(val2) do
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Keyword.keyword?(val1) and Keyword.keyword?(val2)
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end
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defp can_be_merged?(_val1, _val2), do: false
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end
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