1 # Pleroma: A lightweight social networking server
2 # Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
3 # SPDX-License-Identifier: AGPL-3.0-only
5 defmodule Pleroma.Web.MastodonAPI.PollController do
6 use Pleroma.Web, :controller
8 import Pleroma.Web.ControllerHelper, only: [try_render: 3, json_response: 3]
10 alias Pleroma.Activity
12 alias Pleroma.Web.ActivityPub.Visibility
13 alias Pleroma.Web.CommonAPI
15 action_fallback(Pleroma.Web.MastodonAPI.FallbackController)
17 @doc "GET /api/v1/polls/:id"
18 def show(%{assigns: %{user: user}} = conn, %{"id" => id}) do
19 with %Object{} = object <- Object.get_by_id_and_maybe_refetch(id, interval: 60),
20 %Activity{} = activity <- Activity.get_create_by_object_ap_id(object.data["id"]),
21 true <- Visibility.visible_for_user?(activity, user) do
22 try_render(conn, "show.json", %{object: object, for: user})
24 error when is_nil(error) or error == false ->
25 render_error(conn, :not_found, "Record not found")
29 @doc "POST /api/v1/polls/:id/votes"
30 def vote(%{assigns: %{user: user}} = conn, %{"id" => id, "choices" => choices}) do
31 with %Object{data: %{"type" => "Question"}} = object <- Object.get_by_id(id),
32 %Activity{} = activity <- Activity.get_create_by_object_ap_id(object.data["id"]),
33 true <- Visibility.visible_for_user?(activity, user),
34 {:ok, _activities, object} <- get_cached_vote_or_vote(user, object, choices) do
35 try_render(conn, "show.json", %{object: object, for: user})
37 nil -> render_error(conn, :not_found, "Record not found")
38 false -> render_error(conn, :not_found, "Record not found")
39 {:error, message} -> json_response(conn, :unprocessable_entity, %{error: message})
43 defp get_cached_vote_or_vote(user, object, choices) do
44 idempotency_key = "polls:#{user.id}:#{object.data["id"]}"
46 Cachex.fetch!(:idempotency_cache, idempotency_key, fn ->
47 case CommonAPI.vote(user, object, choices) do
48 {:error, _message} = res -> {:ignore, res}