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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: Keyword.get(instance, :instance_thumbnail),
  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           account_activation_required: Keyword.get(instance, :account_activation_required),
  40           features: features(),
  41           federation: federation()
  42         },
  43         vapid_public_key: Keyword.get(Pleroma.Web.Push.vapid_config(), :public_key)
  44       }
  45     }
  46   end
  47
  48   def features do
  49     [
  50       "pleroma_api",
  51       "mastodon_api",
  52       "mastodon_api_streaming",
  53       "polls",
  54       "pleroma_explicit_addressing",
  55       "shareable_emoji_packs",
  56       "multifetch",
  57       "pleroma:api/v1/notifications:include_types_filter",
  58       if Config.get([:media_proxy, :enabled]) do
  59         "media_proxy"
  60       end,
  61       if Config.get([:gopher, :enabled]) do
  62         "gopher"
  63       end,
  64       if Config.get([:chat, :enabled]) do
  65         "chat"
  66       end,
  67       if Config.get([:instance, :allow_relay]) do
  68         "relay"
  69       end,
  70       if Config.get([:instance, :safe_dm_mentions]) do
  71         "safe_dm_mentions"
  72       end,
  73       "pleroma_emoji_reactions",
  74       "pleroma_chat_messages"
  75     ]
  76     |> Enum.filter(& &1)
  77   end
  78
  79   def federation do
  80     quarantined = Config.get([:instance, :quarantined_instances], [])
  81
  82     if Config.get([:mrf, :transparency]) do
  83       {:ok, data} = MRF.describe()
  84
  85       data
  86       |> Map.merge(%{quarantined_instances: quarantined})
  87     else
  88       %{}
  89     end
  90     |> Map.put(:enabled, Config.get([:instance, :federating]))
  91   end
  92 end