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   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.Web.Preload.Providers.Instance do
   6   alias Pleroma.Web.MastodonAPI.InstanceView
   7   alias Pleroma.Web.Nodeinfo.Nodeinfo
   8   alias Pleroma.Web.Plugs.InstanceStatic
   9   alias Pleroma.Web.Preload.Providers.Provider
  10   alias Pleroma.Web.TwitterAPI.UtilView
  11
  12   @behaviour Provider
  13   @instance_url "/api/v1/instance"
  14   @panel_url "/instance/panel.html"
  15   @nodeinfo_url "/nodeinfo/2.0.json"
  16   @fe_config_url "/api/pleroma/frontend_configurations"
  17
  18   @impl Provider
  19   def generate_terms(_params) do
  20     %{}
  21     |> build_info_tag()
  22     |> build_panel_tag()
  23     |> build_nodeinfo_tag()
  24     |> build_fe_config_tag()
  25   end
  26
  27   defp build_info_tag(acc) do
  28     info_data = InstanceView.render("show.json", %{})
  29
  30     Map.put(acc, @instance_url, info_data)
  31   end
  32
  33   defp build_panel_tag(acc) do
  34     instance_path = InstanceStatic.file_path(@panel_url |> to_string())
  35
  36     if File.exists?(instance_path) do
  37       panel_data = File.read!(instance_path)
  38       Map.put(acc, @panel_url, panel_data)
  39     else
  40       acc
  41     end
  42   end
  43
  44   defp build_nodeinfo_tag(acc) do
  45     case Nodeinfo.get_nodeinfo("2.0") do
  46       {:error, _} ->
  47         acc
  48
  49       nodeinfo_data ->
  50         Map.put(acc, @nodeinfo_url, nodeinfo_data)
  51     end
  52   end
  53
  54   defp build_fe_config_tag(acc) do
  55     fe_data = UtilView.render("frontend_configurations.json", %{})
  56
  57     Map.put(acc, @fe_config_url, fe_data)
  58   end
  59 end