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

   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2019 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   alias Pleroma.Web.Salmon
   8   alias Pleroma.Web.WebFinger
   9   alias Pleroma.User
  10   alias Pleroma.Repo
  11   alias Pleroma.Web.ActivityPub.ActivityPub
  12   alias Pleroma.Web.ActivityPub.Transmogrifier
  13   alias Pleroma.Web.ActivityPub.Utils
  14   import Ecto.Query
  15
  16   # the instance itself is not a Person, but instead an Application
  17   def render("user.json", %{user: %{nickname: nil} = user}) do
  18     {:ok, user} = WebFinger.ensure_keys_present(user)
  19     {:ok, _, public_key} = Salmon.keys_from_pem(user.info.keys)
  20     public_key = :public_key.pem_entry_encode(:SubjectPublicKeyInfo, public_key)
  21     public_key = :public_key.pem_encode([public_key])
  22
  23     %{
  24       "id" => user.ap_id,
  25       "type" => "Application",
  26       "following" => "#{user.ap_id}/following",
  27       "followers" => "#{user.ap_id}/followers",
  28       "inbox" => "#{user.ap_id}/inbox",
  29       "name" => "Pleroma",
  30       "summary" => "Virtual actor for Pleroma relay",
  31       "url" => user.ap_id,
  32       "manuallyApprovesFollowers" => false,
  33       "publicKey" => %{
  34         "id" => "#{user.ap_id}#main-key",
  35         "owner" => user.ap_id,
  36         "publicKeyPem" => public_key
  37       },
  38       "endpoints" => %{
  39         "sharedInbox" => "#{Pleroma.Web.Endpoint.url()}/inbox"
  40       }
  41     }
  42     |> Map.merge(Utils.make_json_ld_header())
  43   end
  44
  45   def render("user.json", %{user: user}) do
  46     {:ok, user} = WebFinger.ensure_keys_present(user)
  47     {:ok, _, public_key} = Salmon.keys_from_pem(user.info.keys)
  48     public_key = :public_key.pem_entry_encode(:SubjectPublicKeyInfo, public_key)
  49     public_key = :public_key.pem_encode([public_key])
  50
  51     %{
  52       "id" => user.ap_id,
  53       "type" => "Person",
  54       "following" => "#{user.ap_id}/following",
  55       "followers" => "#{user.ap_id}/followers",
  56       "inbox" => "#{user.ap_id}/inbox",
  57       "outbox" => "#{user.ap_id}/outbox",
  58       "preferredUsername" => user.nickname,
  59       "name" => user.name,
  60       "summary" => user.bio,
  61       "url" => user.ap_id,
  62       "manuallyApprovesFollowers" => user.info.locked,
  63       "publicKey" => %{
  64         "id" => "#{user.ap_id}#main-key",
  65         "owner" => user.ap_id,
  66         "publicKeyPem" => public_key
  67       },
  68       "endpoints" => %{
  69         "sharedInbox" => "#{Pleroma.Web.Endpoint.url()}/inbox"
  70       },
  71       "icon" => %{
  72         "type" => "Image",
  73         "url" => User.avatar_url(user)
  74       },
  75       "image" => %{
  76         "type" => "Image",
  77         "url" => User.banner_url(user)
  78       },
  79       "tag" => user.info.source_data["tag"] || []
  80     }
  81     |> Map.merge(Utils.make_json_ld_header())
  82   end
  83
  84   def render("following.json", %{user: user, page: page}) do
  85     query = User.get_friends_query(user)
  86     query = from(user in query, select: [:ap_id])
  87     following = Repo.all(query)
  88
  89     collection(following, "#{user.ap_id}/following", page, !user.info.hide_follows)
  90     |> Map.merge(Utils.make_json_ld_header())
  91   end
  92
  93   def render("following.json", %{user: user}) do
  94     query = User.get_friends_query(user)
  95     query = from(user in query, select: [:ap_id])
  96     following = Repo.all(query)
  97
  98     %{
  99       "id" => "#{user.ap_id}/following",
 100       "type" => "OrderedCollection",
 101       "totalItems" => length(following),
 102       "first" => collection(following, "#{user.ap_id}/following", 1, !user.info.hide_follows)
 103     }
 104     |> Map.merge(Utils.make_json_ld_header())
 105   end
 106
 107   def render("followers.json", %{user: user, page: page}) do
 108     query = User.get_followers_query(user)
 109     query = from(user in query, select: [:ap_id])
 110     followers = Repo.all(query)
 111
 112     collection(followers, "#{user.ap_id}/followers", page, !user.info.hide_followers)
 113     |> Map.merge(Utils.make_json_ld_header())
 114   end
 115
 116   def render("followers.json", %{user: user}) do
 117     query = User.get_followers_query(user)
 118     query = from(user in query, select: [:ap_id])
 119     followers = Repo.all(query)
 120
 121     %{
 122       "id" => "#{user.ap_id}/followers",
 123       "type" => "OrderedCollection",
 124       "totalItems" => length(followers),
 125       "first" => collection(followers, "#{user.ap_id}/followers", 1, !user.info.hide_followers)
 126     }
 127     |> Map.merge(Utils.make_json_ld_header())
 128   end
 129
 130   def render("outbox.json", %{user: user, max_id: max_qid}) do
 131     # XXX: technically note_count is wrong for this, but it's better than nothing
 132     info = User.user_info(user)
 133
 134     params = %{
 135       "limit" => "10"
 136     }
 137
 138     params =
 139       if max_qid != nil do
 140         Map.put(params, "max_id", max_qid)
 141       else
 142         params
 143       end
 144
 145     activities = ActivityPub.fetch_user_activities(user, nil, params)
 146     min_id = Enum.at(Enum.reverse(activities), 0).id
 147     max_id = Enum.at(activities, 0).id
 148
 149     collection =
 150       Enum.map(activities, fn act ->
 151         {:ok, data} = Transmogrifier.prepare_outgoing(act.data)
 152         data
 153       end)
 154
 155     iri = "#{user.ap_id}/outbox"
 156
 157     page = %{
 158       "id" => "#{iri}?max_id=#{max_id}",
 159       "type" => "OrderedCollectionPage",
 160       "partOf" => iri,
 161       "totalItems" => info.note_count,
 162       "orderedItems" => collection,
 163       "next" => "#{iri}?max_id=#{min_id}"
 164     }
 165
 166     if max_qid == nil do
 167       %{
 168         "id" => iri,
 169         "type" => "OrderedCollection",
 170         "totalItems" => info.note_count,
 171         "first" => page
 172       }
 173       |> Map.merge(Utils.make_json_ld_header())
 174     else
 175       page |> Map.merge(Utils.make_json_ld_header())
 176     end
 177   end
 178
 179   def render("inbox.json", %{user: user, max_id: max_qid}) do
 180     params = %{
 181       "limit" => "10"
 182     }
 183
 184     params =
 185       if max_qid != nil do
 186         Map.put(params, "max_id", max_qid)
 187       else
 188         params
 189       end
 190
 191     activities = ActivityPub.fetch_activities([user.ap_id | user.following], params)
 192
 193     min_id = Enum.at(Enum.reverse(activities), 0).id
 194     max_id = Enum.at(activities, 0).id
 195
 196     collection =
 197       Enum.map(activities, fn act ->
 198         {:ok, data} = Transmogrifier.prepare_outgoing(act.data)
 199         data
 200       end)
 201
 202     iri = "#{user.ap_id}/inbox"
 203
 204     page = %{
 205       "id" => "#{iri}?max_id=#{max_id}",
 206       "type" => "OrderedCollectionPage",
 207       "partOf" => iri,
 208       "totalItems" => -1,
 209       "orderedItems" => collection,
 210       "next" => "#{iri}?max_id=#{min_id}"
 211     }
 212
 213     if max_qid == nil do
 214       %{
 215         "id" => iri,
 216         "type" => "OrderedCollection",
 217         "totalItems" => -1,
 218         "first" => page
 219       }
 220       |> Map.merge(Utils.make_json_ld_header())
 221     else
 222       page |> Map.merge(Utils.make_json_ld_header())
 223     end
 224   end
 225
 226   def collection(collection, iri, page, show_items \\ true, total \\ nil) do
 227     offset = (page - 1) * 10
 228     items = Enum.slice(collection, offset, 10)
 229     items = Enum.map(items, fn user -> user.ap_id end)
 230     total = total || length(collection)
 231
 232     map = %{
 233       "id" => "#{iri}?page=#{page}",
 234       "type" => "OrderedCollectionPage",
 235       "partOf" => iri,
 236       "totalItems" => total,
 237       "orderedItems" => if(show_items, do: items, else: [])
 238     }
 239
 240     if offset < total do
 241       Map.put(map, "next", "#{iri}?page=#{page + 1}")
 242     else
 243       map
 244     end
 245   end
 246 end