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   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.Web.Nodeinfo.NodeinfoController do
   6   use Pleroma.Web, :controller
   7
   8   alias Pleroma.Config
   9   alias Pleroma.Stats
  10   alias Pleroma.User
  11   alias Pleroma.Web
  12   alias Pleroma.Web.ActivityPub.MRF
  13   alias Pleroma.Web.Federator.Publisher
  14
  15   def schemas(conn, _params) do
  16     response = %{
  17       links: [
  18         %{
  19           rel: "http://nodeinfo.diaspora.software/ns/schema/2.0",
  20           href: Web.base_url() <> "/nodeinfo/2.0.json"
  21         },
  22         %{
  23           rel: "http://nodeinfo.diaspora.software/ns/schema/2.1",
  24           href: Web.base_url() <> "/nodeinfo/2.1.json"
  25         }
  26       ]
  27     }
  28
  29     json(conn, response)
  30   end
  31
  32   # returns a nodeinfo 2.0 map, since 2.1 just adds a repository field
  33   # under software.
  34   def raw_nodeinfo do
  35     stats = Stats.get_stats()
  36
  37     quarantined = Config.get([:instance, :quarantined_instances], [])
  38
  39     staff_accounts =
  40       User.all_superusers()
  41       |> Enum.map(fn u -> u.ap_id end)
  42
  43     federation_response =
  44       if Config.get([:instance, :mrf_transparency]) do
  45         {:ok, data} = MRF.describe()
  46
  47         data
  48         |> Map.merge(%{quarantined_instances: quarantined})
  49       else
  50         %{}
  51       end
  52
  53     features =
  54       [
  55         "pleroma_api",
  56         "mastodon_api",
  57         "mastodon_api_streaming",
  58         "polls",
  59         "pleroma_explicit_addressing",
  60         "shareable_emoji_packs",
  61         if Config.get([:media_proxy, :enabled]) do
  62           "media_proxy"
  63         end,
  64         if Config.get([:gopher, :enabled]) do
  65           "gopher"
  66         end,
  67         if Config.get([:chat, :enabled]) do
  68           "chat"
  69         end,
  70         if Config.get([:suggestions, :enabled]) do
  71           "suggestions"
  72         end,
  73         if Config.get([:instance, :allow_relay]) do
  74           "relay"
  75         end,
  76         if Config.get([:instance, :safe_dm_mentions]) do
  77           "safe_dm_mentions"
  78         end
  79       ]
  80       |> Enum.filter(& &1)
  81
  82     %{
  83       version: "2.0",
  84       software: %{
  85         name: Pleroma.Application.name() |> String.downcase(),
  86         version: Pleroma.Application.version()
  87       },
  88       protocols: Publisher.gather_nodeinfo_protocol_names(),
  89       services: %{
  90         inbound: [],
  91         outbound: []
  92       },
  93       openRegistrations: Config.get([:instance, :registrations_open]),
  94       usage: %{
  95         users: %{
  96           total: stats.user_count || 0
  97         },
  98         localPosts: stats.status_count || 0
  99       },
 100       metadata: %{
 101         nodeName: Config.get([:instance, :name]),
 102         nodeDescription: Config.get([:instance, :description]),
 103         private: !Config.get([:instance, :public], true),
 104         suggestions: %{
 105           enabled: Config.get([:suggestions, :enabled], false),
 106           thirdPartyEngine: Config.get([:suggestions, :third_party_engine], ""),
 107           timeout: Config.get([:suggestions, :timeout], 5000),
 108           limit: Config.get([:suggestions, :limit], 23),
 109           web: Config.get([:suggestions, :web], "")
 110         },
 111         staffAccounts: staff_accounts,
 112         federation: federation_response,
 113         pollLimits: Config.get([:instance, :poll_limits]),
 114         postFormats: Config.get([:instance, :allowed_post_formats]),
 115         uploadLimits: %{
 116           general: Config.get([:instance, :upload_limit]),
 117           avatar: Config.get([:instance, :avatar_upload_limit]),
 118           banner: Config.get([:instance, :banner_upload_limit]),
 119           background: Config.get([:instance, :background_upload_limit])
 120         },
 121         accountActivationRequired: Config.get([:instance, :account_activation_required], false),
 122         invitesEnabled: Config.get([:instance, :invites_enabled], false),
 123         mailerEnabled: Config.get([Pleroma.Emails.Mailer, :enabled], false),
 124         features: features,
 125         restrictedNicknames: Config.get([Pleroma.User, :restricted_nicknames]),
 126         skipThreadContainment: Config.get([:instance, :skip_thread_containment], false)
 127       }
 128     }
 129   end
 130
 131   # Schema definition: https://github.com/jhass/nodeinfo/blob/master/schemas/2.0/schema.json
 132   # and https://github.com/jhass/nodeinfo/blob/master/schemas/2.1/schema.json
 133   def nodeinfo(conn, %{"version" => "2.0"}) do
 134     conn
 135     |> put_resp_header(
 136       "content-type",
 137       "application/json; profile=http://nodeinfo.diaspora.software/ns/schema/2.0#; charset=utf-8"
 138     )
 139     |> json(raw_nodeinfo())
 140   end
 141
 142   def nodeinfo(conn, %{"version" => "2.1"}) do
 143     raw_response = raw_nodeinfo()
 144
 145     updated_software =
 146       raw_response
 147       |> Map.get(:software)
 148       |> Map.put(:repository, Pleroma.Application.repository())
 149
 150     response =
 151       raw_response
 152       |> Map.put(:software, updated_software)
 153       |> Map.put(:version, "2.1")
 154
 155     conn
 156     |> put_resp_header(
 157       "content-type",
 158       "application/json; profile=http://nodeinfo.diaspora.software/ns/schema/2.1#; charset=utf-8"
 159     )
 160     |> json(response)
 161   end
 162
 163   def nodeinfo(conn, _) do
 164     render_error(conn, :not_found, "Nodeinfo schema version not handled")
 165   end
 166 end