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   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2020 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.Preload.Providers.Provider
   9
  10   @behaviour Provider
  11   @instance_url :"/api/v1/instance"
  12   @panel_url :"/instance/panel.html"
  13   @nodeinfo_url :"/nodeinfo/2.0"
  14
  15   @impl Provider
  16   def generate_terms(_params) do
  17     %{}
  18     |> build_info_tag()
  19     |> build_panel_tag()
  20     |> build_nodeinfo_tag()
  21   end
  22
  23   defp build_info_tag(acc) do
  24     info_data = InstanceView.render("show.json", %{})
  25
  26     Map.put(acc, @instance_url, info_data)
  27   end
  28
  29   defp build_panel_tag(acc) do
  30     instance_path = Path.join(:code.priv_dir(:pleroma), "static/instance/panel.html")
  31
  32     if File.exists?(instance_path) do
  33       panel_data = File.read!(instance_path)
  34       Map.put(acc, @panel_url, panel_data)
  35     else
  36       acc
  37     end
  38   end
  39
  40   defp build_nodeinfo_tag(acc) do
  41     case Nodeinfo.get_nodeinfo("2.0") do
  42       {:error, _} ->
  43         acc
  44
  45       nodeinfo_data ->
  46         Map.put(acc, @nodeinfo_url, nodeinfo_data)
  47     end
  48   end
  49 end