git.squeep.com Git - akkoma/blob - lib/pleroma/web/static_fe/activity_representer.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.StaticFE.ActivityRepresenter do
   6   alias Pleroma.Activity
   7   alias Pleroma.Object
   8   alias Pleroma.User
   9   alias Pleroma.Web.ActivityPub.Visibility
  10
  11   def prepare_activity(%User{} = user, %Object{} = object) do
  12     %{}
  13     |> set_user(user)
  14     |> set_object(object)
  15     |> set_title(object)
  16     |> set_content(object)
  17     |> set_attachments(object)
  18   end
  19
  20   def prepare_activity(%User{} = user, %Activity{} = activity), do:
  21     prepare_activity(user, Object.normalize(activity.data["object"]))
  22
  23   defp set_user(data, %User{} = user), do: Map.put(data, :user, user)
  24
  25   defp set_object(data, %Object{} = object), do: Map.put(data, :object, object)
  26
  27   defp set_title(data, %Object{data: %{"name" => name}}) when is_binary(name),
  28     do: Map.put(data, :title, name)
  29
  30   defp set_title(data, %Object{data: %{"summary" => summary}}) when is_binary(summary),
  31     do: Map.put(data, :title, summary)
  32
  33   defp set_title(data, _), do: Map.put(data, :title, nil)
  34
  35   defp set_content(data, %Object{data: %{"content" => content}}) when is_binary(content),
  36     do: Map.put(data, :content, content)
  37
  38   defp set_content(data, _), do: Map.put(data, :content, nil)
  39
  40   # TODO: attachments
  41   defp set_attachments(data, _), do: Map.put(data, :attachments, [])
  42
  43   def represent(activity_id) do
  44     with %Activity{data: %{"type" => "Create"}} = activity <- Activity.get_by_id(activity_id),
  45          true <- Visibility.is_public?(activity),
  46          %Object{} = object <- Object.normalize(activity.data["object"]),
  47          %User{} = user <- User.get_or_fetch(activity.data["actor"]),
  48          data <- prepare_activity(user, object) do
  49       {:ok, data}
  50     else
  51       e ->
  52         {:error, e}
  53     end
  54   end
  55 end