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   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.Web.MastodonAPI.NotificationView do
   6   use Pleroma.Web, :view
   7
   8   alias Pleroma.Activity
   9   alias Pleroma.Notification
  10   alias Pleroma.User
  11   alias Pleroma.UserRelationship
  12   alias Pleroma.Web.AdminAPI.Report
  13   alias Pleroma.Web.AdminAPI.ReportView
  14   alias Pleroma.Web.CommonAPI
  15   alias Pleroma.Web.MediaProxy
  16   alias Pleroma.Web.MastodonAPI.AccountView
  17   alias Pleroma.Web.MastodonAPI.NotificationView
  18   alias Pleroma.Web.MastodonAPI.StatusView
  19
  20   defp object_id_for(%{data: %{"object" => %{"id" => id}}}) when is_binary(id), do: id
  21
  22   defp object_id_for(%{data: %{"object" => id}}) when is_binary(id), do: id
  23
  24   @parent_types ~w{Like Announce EmojiReact Update}
  25
  26   def render("index.json", %{notifications: notifications, for: reading_user} = opts) do
  27     activities = Enum.map(notifications, & &1.activity)
  28
  29     parent_activities =
  30       activities
  31       |> Enum.filter(fn
  32         %{data: %{"type" => type}} ->
  33           type in @parent_types
  34       end)
  35       |> Enum.map(&object_id_for/1)
  36       |> Activity.create_by_object_ap_id()
  37       |> Activity.with_preloaded_object(:left)
  38       |> Pleroma.Repo.all()
  39
  40     relationships_opt =
  41       cond do
  42         Map.has_key?(opts, :relationships) ->
  43           opts[:relationships]
  44
  45         is_nil(reading_user) ->
  46           UserRelationship.view_relationships_option(nil, [])
  47
  48         true ->
  49           move_activities_targets =
  50             activities
  51             |> Enum.filter(&(&1.data["type"] == "Move"))
  52             |> Enum.map(&User.get_cached_by_ap_id(&1.data["target"]))
  53             |> Enum.filter(& &1)
  54
  55           actors =
  56             activities
  57             |> Enum.map(fn a -> User.get_cached_by_ap_id(a.data["actor"]) end)
  58             |> Enum.filter(& &1)
  59             |> Kernel.++(move_activities_targets)
  60
  61           UserRelationship.view_relationships_option(reading_user, actors, subset: :source_mutes)
  62       end
  63
  64     opts =
  65       opts
  66       |> Map.put(:parent_activities, parent_activities)
  67       |> Map.put(:relationships, relationships_opt)
  68
  69     safe_render_many(notifications, NotificationView, "show.json", opts)
  70   end
  71
  72   def render(
  73         "show.json",
  74         %{
  75           notification: %Notification{activity: activity} = notification,
  76           for: reading_user
  77         } = opts
  78       ) do
  79     actor = User.get_cached_by_ap_id(activity.data["actor"])
  80
  81     parent_activity_fn = fn ->
  82       if opts[:parent_activities] do
  83         Activity.Queries.find_by_object_ap_id(opts[:parent_activities], object_id_for(activity))
  84       else
  85         Activity.get_create_by_object_ap_id(object_id_for(activity))
  86       end
  87     end
  88
  89     # Note: :relationships contain user mutes (needed for :muted flag in :status)
  90     status_render_opts = %{relationships: opts[:relationships]}
  91     account = AccountView.render("show.json", %{user: actor, for: reading_user})
  92
  93     response = %{
  94       id: to_string(notification.id),
  95       type: notification.type,
  96       created_at: CommonAPI.Utils.to_masto_date(notification.inserted_at),
  97       account: account,
  98       pleroma: %{
  99         is_muted: User.mutes?(reading_user, actor),
 100         is_seen: notification.seen
 101       }
 102     }
 103
 104     case notification.type do
 105       "mention" ->
 106         put_status(response, activity, reading_user, status_render_opts)
 107
 108       "favourite" ->
 109         put_status(response, parent_activity_fn.(), reading_user, status_render_opts)
 110
 111       "reblog" ->
 112         put_status(response, parent_activity_fn.(), reading_user, status_render_opts)
 113
 114       "update" ->
 115         put_status(response, parent_activity_fn.(), reading_user, status_render_opts)
 116
 117       "move" ->
 118         put_target(response, activity, reading_user, %{})
 119
 120       "poll" ->
 121         put_status(response, activity, reading_user, status_render_opts)
 122
 123       "pleroma:emoji_reaction" ->
 124         response
 125         |> put_status(parent_activity_fn.(), reading_user, status_render_opts)
 126         |> put_emoji(activity)
 127
 128       "pleroma:report" ->
 129         put_report(response, activity)
 130
 131       type when type in ["follow", "follow_request"] ->
 132         response
 133     end
 134   end
 135
 136   defp put_report(response, activity) do
 137     report_render = ReportView.render("show.json", Report.extract_report_info(activity))
 138
 139     Map.put(response, :report, report_render)
 140   end
 141
 142   defp put_emoji(response, activity) do
 143     response
 144     |> Map.put(:emoji, activity.data["content"])
 145     |> Map.put(:emoji_url, MediaProxy.url(Pleroma.Emoji.emoji_url(activity.data)))
 146   end
 147
 148   defp put_status(response, activity, reading_user, opts) do
 149     status_render_opts = Map.merge(opts, %{activity: activity, for: reading_user})
 150     status_render = StatusView.render("show.json", status_render_opts)
 151
 152     Map.put(response, :status, status_render)
 153   end
 154
 155   defp put_target(response, activity, reading_user, opts) do
 156     target_user = User.get_cached_by_ap_id(activity.data["target"])
 157     target_render_opts = Map.merge(opts, %{user: target_user, for: reading_user})
 158     target_render = AccountView.render("show.json", target_render_opts)
 159
 160     Map.put(response, :target, target_render)
 161   end
 162 end