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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.MastodonAPI.InstanceView do
   6   use Pleroma.Web, :view
   7
   8   alias Pleroma.Config
   9   alias Pleroma.Web.ActivityPub.MRF
  10
  11   @mastodon_api_level "2.7.2"
  12
  13   def render("show.json", _) do
  14     instance = Config.get(:instance)
  15
  16     %{
  17       uri: Pleroma.Web.base_url(),
  18       title: Keyword.get(instance, :name),
  19       description: Keyword.get(instance, :description),
  20       version: "#{@mastodon_api_level} (compatible; #{Pleroma.Application.named_version()})",
  21       email: Keyword.get(instance, :email),
  22       urls: %{
  23         streaming_api: Pleroma.Web.Endpoint.websocket_url()
  24       },
  25       stats: Pleroma.Stats.get_stats(),
  26       thumbnail: Pleroma.Web.base_url() <> "/instance/thumbnail.jpeg",
  27       languages: ["en"],
  28       registrations: Keyword.get(instance, :registrations_open),
  29       # Extra (not present in Mastodon):
  30       max_toot_chars: Keyword.get(instance, :limit),
  31       poll_limits: Keyword.get(instance, :poll_limits),
  32       upload_limit: Keyword.get(instance, :upload_limit),
  33       avatar_upload_limit: Keyword.get(instance, :avatar_upload_limit),
  34       background_upload_limit: Keyword.get(instance, :background_upload_limit),
  35       banner_upload_limit: Keyword.get(instance, :banner_upload_limit),
  36       background_image: Keyword.get(instance, :background_image),
  37       pleroma: %{
  38         metadata: %{
  39           features: features(),
  40           federation: federation()
  41         },
  42         vapid_public_key: Keyword.get(Pleroma.Web.Push.vapid_config(), :public_key)
  43       }
  44     }
  45   end
  46
  47   def features do
  48     [
  49       "pleroma_api",
  50       "mastodon_api",
  51       "mastodon_api_streaming",
  52       "polls",
  53       "pleroma_explicit_addressing",
  54       "shareable_emoji_packs",
  55       "multifetch",
  56       "pleroma:api/v1/notifications:include_types_filter",
  57       if Config.get([:media_proxy, :enabled]) do
  58         "media_proxy"
  59       end,
  60       if Config.get([:gopher, :enabled]) do
  61         "gopher"
  62       end,
  63       if Config.get([:chat, :enabled]) do
  64         "chat"
  65       end,
  66       if Config.get([:instance, :allow_relay]) do
  67         "relay"
  68       end,
  69       if Config.get([:instance, :safe_dm_mentions]) do
  70         "safe_dm_mentions"
  71       end,
  72       "pleroma_emoji_reactions"
  73     ]
  74     |> Enum.filter(& &1)
  75   end
  76
  77   def federation do
  78     quarantined = Config.get([:instance, :quarantined_instances], [])
  79
  80     if Config.get([:instance, :mrf_transparency]) do
  81       {:ok, data} = MRF.describe()
  82
  83       data
  84       |> Map.merge(%{quarantined_instances: quarantined})
  85     else
  86       %{}
  87     end
  88     |> Map.put(:enabled, Config.get([:instance, :federating]))
  89   end
  90 end