git.squeep.com Git - akkoma/blob - lib/pleroma/web/activity_pub/views/user_view.ex

   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.ActivityPub.UserView do
   6   use Pleroma.Web, :view
   7
   8   alias Pleroma.Keys
   9   alias Pleroma.Repo
  10   alias Pleroma.User
  11   alias Pleroma.Web.ActivityPub.Transmogrifier
  12   alias Pleroma.Web.ActivityPub.Utils
  13   alias Pleroma.Web.Endpoint
  14   alias Pleroma.Web.Router.Helpers
  15
  16   import Ecto.Query
  17
  18   def render("endpoints.json", %{user: %User{nickname: nil, local: true} = _user}) do
  19     %{"sharedInbox" => Helpers.activity_pub_url(Endpoint, :inbox)}
  20   end
  21
  22   def render("endpoints.json", %{user: %User{local: true} = _user}) do
  23     %{
  24       "oauthAuthorizationEndpoint" => Helpers.o_auth_url(Endpoint, :authorize),
  25       "oauthRegistrationEndpoint" => Helpers.app_url(Endpoint, :create),
  26       "oauthTokenEndpoint" => Helpers.o_auth_url(Endpoint, :token_exchange),
  27       "sharedInbox" => Helpers.activity_pub_url(Endpoint, :inbox),
  28       "uploadMedia" => Helpers.activity_pub_url(Endpoint, :upload_media)
  29     }
  30   end
  31
  32   def render("endpoints.json", _), do: %{}
  33
  34   def render("service.json", %{user: user}) do
  35     {:ok, user} = User.ensure_keys_present(user)
  36     {:ok, _, public_key} = Keys.keys_from_pem(user.keys)
  37     public_key = :public_key.pem_entry_encode(:SubjectPublicKeyInfo, public_key)
  38     public_key = :public_key.pem_encode([public_key])
  39
  40     endpoints = render("endpoints.json", %{user: user})
  41
  42     %{
  43       "id" => user.ap_id,
  44       "type" => "Application",
  45       "following" => "#{user.ap_id}/following",
  46       "followers" => "#{user.ap_id}/followers",
  47       "inbox" => "#{user.ap_id}/inbox",
  48       "name" => "Pleroma",
  49       "summary" =>
  50         "An internal service actor for this Pleroma instance.  No user-serviceable parts inside.",
  51       "url" => user.ap_id,
  52       "manuallyApprovesFollowers" => false,
  53       "publicKey" => %{
  54         "id" => "#{user.ap_id}#main-key",
  55         "owner" => user.ap_id,
  56         "publicKeyPem" => public_key
  57       },
  58       "endpoints" => endpoints,
  59       "invisible" => User.invisible?(user)
  60     }
  61     |> Map.merge(Utils.make_json_ld_header())
  62   end
  63
  64   # the instance itself is not a Person, but instead an Application
  65   def render("user.json", %{user: %User{nickname: nil} = user}),
  66     do: render("service.json", %{user: user})
  67
  68   def render("user.json", %{user: %User{nickname: "internal." <> _} = user}),
  69     do: render("service.json", %{user: user}) |> Map.put("preferredUsername", user.nickname)
  70
  71   def render("user.json", %{user: user}) do
  72     {:ok, user} = User.ensure_keys_present(user)
  73     {:ok, _, public_key} = Keys.keys_from_pem(user.keys)
  74     public_key = :public_key.pem_entry_encode(:SubjectPublicKeyInfo, public_key)
  75     public_key = :public_key.pem_encode([public_key])
  76     user = User.sanitize_html(user)
  77
  78     endpoints = render("endpoints.json", %{user: user})
  79
  80     emoji_tags = Transmogrifier.take_emoji_tags(user)
  81
  82     fields = Enum.map(user.fields, &Map.put(&1, "type", "PropertyValue"))
  83
  84     %{
  85       "id" => user.ap_id,
  86       "type" => user.actor_type,
  87       "following" => "#{user.ap_id}/following",
  88       "followers" => "#{user.ap_id}/followers",
  89       "inbox" => "#{user.ap_id}/inbox",
  90       "outbox" => "#{user.ap_id}/outbox",
  91       "preferredUsername" => user.nickname,
  92       "name" => user.name,
  93       "summary" => user.bio,
  94       "url" => user.ap_id,
  95       "manuallyApprovesFollowers" => user.locked,
  96       "publicKey" => %{
  97         "id" => "#{user.ap_id}#main-key",
  98         "owner" => user.ap_id,
  99         "publicKeyPem" => public_key
 100       },
 101       "endpoints" => endpoints,
 102       "attachment" => fields,
 103       "tag" => emoji_tags,
 104       "discoverable" => user.discoverable
 105     }
 106     |> Map.merge(maybe_make_image(&User.avatar_url/2, "icon", user))
 107     |> Map.merge(maybe_make_image(&User.banner_url/2, "image", user))
 108     |> Map.merge(Utils.make_json_ld_header())
 109   end
 110
 111   def render("following.json", %{user: user, page: page} = opts) do
 112     showing_items = (opts[:for] && opts[:for] == user) || !user.hide_follows
 113     showing_count = showing_items || !user.hide_follows_count
 114
 115     query = User.get_friends_query(user)
 116     query = from(user in query, select: [:ap_id])
 117     following = Repo.all(query)
 118
 119     total =
 120       if showing_count do
 121         length(following)
 122       else
 123         0
 124       end
 125
 126     collection(following, "#{user.ap_id}/following", page, showing_items, total)
 127     |> Map.merge(Utils.make_json_ld_header())
 128   end
 129
 130   def render("following.json", %{user: user} = opts) do
 131     showing_items = (opts[:for] && opts[:for] == user) || !user.hide_follows
 132     showing_count = showing_items || !user.hide_follows_count
 133
 134     query = User.get_friends_query(user)
 135     query = from(user in query, select: [:ap_id])
 136     following = Repo.all(query)
 137
 138     total =
 139       if showing_count do
 140         length(following)
 141       else
 142         0
 143       end
 144
 145     %{
 146       "id" => "#{user.ap_id}/following",
 147       "type" => "OrderedCollection",
 148       "totalItems" => total,
 149       "first" =>
 150         if showing_items do
 151           collection(following, "#{user.ap_id}/following", 1, !user.hide_follows)
 152         else
 153           "#{user.ap_id}/following?page=1"
 154         end
 155     }
 156     |> Map.merge(Utils.make_json_ld_header())
 157   end
 158
 159   def render("followers.json", %{user: user, page: page} = opts) do
 160     showing_items = (opts[:for] && opts[:for] == user) || !user.hide_followers
 161     showing_count = showing_items || !user.hide_followers_count
 162
 163     query = User.get_followers_query(user)
 164     query = from(user in query, select: [:ap_id])
 165     followers = Repo.all(query)
 166
 167     total =
 168       if showing_count do
 169         length(followers)
 170       else
 171         0
 172       end
 173
 174     collection(followers, "#{user.ap_id}/followers", page, showing_items, total)
 175     |> Map.merge(Utils.make_json_ld_header())
 176   end
 177
 178   def render("followers.json", %{user: user} = opts) do
 179     showing_items = (opts[:for] && opts[:for] == user) || !user.hide_followers
 180     showing_count = showing_items || !user.hide_followers_count
 181
 182     query = User.get_followers_query(user)
 183     query = from(user in query, select: [:ap_id])
 184     followers = Repo.all(query)
 185
 186     total =
 187       if showing_count do
 188         length(followers)
 189       else
 190         0
 191       end
 192
 193     %{
 194       "id" => "#{user.ap_id}/followers",
 195       "type" => "OrderedCollection",
 196       "first" =>
 197         if showing_items do
 198           collection(followers, "#{user.ap_id}/followers", 1, showing_items, total)
 199         else
 200           "#{user.ap_id}/followers?page=1"
 201         end
 202     }
 203     |> maybe_put_total_items(showing_count, total)
 204     |> Map.merge(Utils.make_json_ld_header())
 205   end
 206
 207   def render("activity_collection.json", %{iri: iri}) do
 208     %{
 209       "id" => iri,
 210       "type" => "OrderedCollection",
 211       "first" => "#{iri}?page=true"
 212     }
 213     |> Map.merge(Utils.make_json_ld_header())
 214   end
 215
 216   def render("activity_collection_page.json", %{
 217         activities: activities,
 218         iri: iri,
 219         pagination: pagination
 220       }) do
 221     collection =
 222       Enum.map(activities, fn activity ->
 223         {:ok, data} = Transmogrifier.prepare_outgoing(activity.data)
 224         data
 225       end)
 226
 227     %{
 228       "type" => "OrderedCollectionPage",
 229       "partOf" => iri,
 230       "orderedItems" => collection
 231     }
 232     |> Map.merge(Utils.make_json_ld_header())
 233     |> Map.merge(pagination)
 234   end
 235
 236   defp maybe_put_total_items(map, false, _total), do: map
 237
 238   defp maybe_put_total_items(map, true, total) do
 239     Map.put(map, "totalItems", total)
 240   end
 241
 242   def collection(collection, iri, page, show_items \\ true, total \\ nil) do
 243     offset = (page - 1) * 10
 244     items = Enum.slice(collection, offset, 10)
 245     items = Enum.map(items, fn user -> user.ap_id end)
 246     total = total || length(collection)
 247
 248     map = %{
 249       "id" => "#{iri}?page=#{page}",
 250       "type" => "OrderedCollectionPage",
 251       "partOf" => iri,
 252       "totalItems" => total,
 253       "orderedItems" => if(show_items, do: items, else: [])
 254     }
 255
 256     if offset < total do
 257       Map.put(map, "next", "#{iri}?page=#{page + 1}")
 258     else
 259       map
 260     end
 261   end
 262
 263   defp maybe_make_image(func, key, user) do
 264     if image = func.(user, no_default: true) do
 265       %{
 266         key => %{
 267           "type" => "Image",
 268           "url" => image
 269         }
 270       }
 271     else
 272       %{}
 273     end
 274   end
 275 end