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