63 lines
2.4 KiB
Elixir
63 lines
2.4 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Web.MastodonAPI.PollController do
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use Pleroma.Web, :controller
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import Pleroma.Web.ControllerHelper, only: [try_render: 3, json_response: 3]
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alias Pleroma.Activity
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alias Pleroma.Object
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alias Pleroma.Plugs.OAuthScopesPlug
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alias Pleroma.Web.ActivityPub.Visibility
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alias Pleroma.Web.CommonAPI
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action_fallback(Pleroma.Web.MastodonAPI.FallbackController)
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plug(
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OAuthScopesPlug,
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%{scopes: ["read:statuses"], fallback: :proceed_unauthenticated} when action == :show
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)
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plug(OAuthScopesPlug, %{scopes: ["write:statuses"]} when action == :vote)
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plug(Pleroma.Plugs.EnsurePublicOrAuthenticatedPlug)
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@doc "GET /api/v1/polls/:id"
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def show(%{assigns: %{user: user}} = conn, %{"id" => id}) do
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with %Object{} = object <- Object.get_by_id_and_maybe_refetch(id, interval: 60),
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%Activity{} = activity <- Activity.get_create_by_object_ap_id(object.data["id"]),
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true <- Visibility.visible_for_user?(activity, user) do
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try_render(conn, "show.json", %{object: object, for: user})
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else
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error when is_nil(error) or error == false ->
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render_error(conn, :not_found, "Record not found")
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end
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end
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@doc "POST /api/v1/polls/:id/votes"
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def vote(%{assigns: %{user: user}} = conn, %{"id" => id, "choices" => choices}) do
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with %Object{data: %{"type" => "Question"}} = object <- Object.get_by_id(id),
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%Activity{} = activity <- Activity.get_create_by_object_ap_id(object.data["id"]),
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true <- Visibility.visible_for_user?(activity, user),
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{:ok, _activities, object} <- get_cached_vote_or_vote(user, object, choices) do
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try_render(conn, "show.json", %{object: object, for: user})
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else
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nil -> render_error(conn, :not_found, "Record not found")
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false -> render_error(conn, :not_found, "Record not found")
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{:error, message} -> json_response(conn, :unprocessable_entity, %{error: message})
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end
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end
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defp get_cached_vote_or_vote(user, object, choices) do
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idempotency_key = "polls:#{user.id}:#{object.data["id"]}"
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Cachex.fetch!(:idempotency_cache, idempotency_key, fn ->
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case CommonAPI.vote(user, object, choices) do
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{:error, _message} = res -> {:ignore, res}
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res -> {:commit, res}
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end
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end)
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end
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end
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