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+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.AdminAPI.ConfigController do
+ use Pleroma.Web, :controller
+
+ alias Pleroma.Config
+ alias Pleroma.ConfigDB
+ alias Pleroma.Plugs.OAuthScopesPlug
+
+ plug(Pleroma.Web.ApiSpec.CastAndValidate)
+ plug(OAuthScopesPlug, %{scopes: ["write"], admin: true} when action == :update)
+
+ plug(
+ OAuthScopesPlug,
+ %{scopes: ["read"], admin: true}
+ when action in [:show, :descriptions]
+ )
+
+ action_fallback(Pleroma.Web.AdminAPI.FallbackController)
+
+ defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.Admin.ConfigOperation
+
+ def descriptions(conn, _params) do
+ descriptions = Enum.filter(Pleroma.Docs.JSON.compiled_descriptions(), &whitelisted_config?/1)
+
+ json(conn, descriptions)
+ end
+
+ def show(conn, %{only_db: true}) do
+ with :ok <- configurable_from_database() do
+ configs = Pleroma.Repo.all(ConfigDB)
+
+ render(conn, "index.json", %{
+ configs: configs,
+ need_reboot: Restarter.Pleroma.need_reboot?()
+ })
+ end
+ end
+
+ def show(conn, _params) do
+ with :ok <- configurable_from_database() do
+ configs = ConfigDB.get_all_as_keyword()
+
+ merged =
+ Config.Holder.default_config()
+ |> ConfigDB.merge(configs)
+ |> Enum.map(fn {group, values} ->
+ Enum.map(values, fn {key, value} ->
+ db =
+ if configs[group][key] do
+ ConfigDB.get_db_keys(configs[group][key], key)
+ end
+
+ db_value = configs[group][key]
+
+ merged_value =
+ if not is_nil(db_value) and Keyword.keyword?(db_value) and
+ ConfigDB.sub_key_full_update?(group, key, Keyword.keys(db_value)) do
+ ConfigDB.merge_group(group, key, value, db_value)
+ else
+ value
+ end
+
+ %ConfigDB{
+ group: group,
+ key: key,
+ value: merged_value
+ }
+ |> Pleroma.Maps.put_if_present(:db, db)
+ end)
+ end)
+ |> List.flatten()
+
+ render(conn, "index.json", %{
+ configs: merged,
+ need_reboot: Restarter.Pleroma.need_reboot?()
+ })
+ end
+ end
+
+ def update(%{body_params: %{configs: configs}} = conn, _) do
+ with :ok <- configurable_from_database() do
+ results =
+ configs
+ |> Enum.filter(&whitelisted_config?/1)
+ |> Enum.map(fn
+ %{group: group, key: key, delete: true} = params ->
+ ConfigDB.delete(%{group: group, key: key, subkeys: params[:subkeys]})
+
+ %{group: group, key: key, value: value} ->
+ ConfigDB.update_or_create(%{group: group, key: key, value: value})
+ end)
+ |> Enum.reject(fn {result, _} -> result == :error end)
+
+ {deleted, updated} =
+ results
+ |> Enum.map(fn {:ok, %{key: key, value: value} = config} ->
+ Map.put(config, :db, ConfigDB.get_db_keys(value, key))
+ end)
+ |> Enum.split_with(&(Ecto.get_meta(&1, :state) == :deleted))
+
+ Config.TransferTask.load_and_update_env(deleted, false)
+
+ if not Restarter.Pleroma.need_reboot?() do
+ changed_reboot_settings? =
+ (updated ++ deleted)
+ |> Enum.any?(&Config.TransferTask.pleroma_need_restart?(&1.group, &1.key, &1.value))
+
+ if changed_reboot_settings?, do: Restarter.Pleroma.need_reboot()
+ end
+
+ render(conn, "index.json", %{
+ configs: updated,
+ need_reboot: Restarter.Pleroma.need_reboot?()
+ })
+ end
+ end
+
+ defp configurable_from_database do
+ if Config.get(:configurable_from_database) do
+ :ok
+ else
+ {:error, "To use this endpoint you need to enable configuration from database."}
+ end
+ end
+
+ defp whitelisted_config?(group, key) do
+ if whitelisted_configs = Config.get(:database_config_whitelist) do
+ Enum.any?(whitelisted_configs, fn
+ {whitelisted_group} ->
+ group == inspect(whitelisted_group)
+
+ {whitelisted_group, whitelisted_key} ->
+ group == inspect(whitelisted_group) && key == inspect(whitelisted_key)
+ end)
+ else
+ true
+ end
+ end
+
+ defp whitelisted_config?(%{group: group, key: key}) do
+ whitelisted_config?(group, key)
+ end
+
+ defp whitelisted_config?(%{group: group} = config) do
+ whitelisted_config?(group, config[:key])
+ end
+end