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Merge branch 'bugfix/980-polls-double-vote' into 'develop'

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MastodonAPI Controller: Band-Aid double vote problem.

See merge request pleroma/pleroma!1275
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lain 2019-06-15 15:13:48 +00:00
commit 135c196769
1 changed files with 15 additions and 1 deletions
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16
lib/pleroma/web/mastodon_api/mastodon_api_controller.ex
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@ -454,12 +454,26 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
end end
end end
defp get_cached_vote_or_vote(user, object, choices) do
idempotency_key = "polls:#{user.id}:#{object.data["id"]}"
{_, res} =
Cachex.fetch(:idempotency_cache, idempotency_key, fn _ ->
case CommonAPI.vote(user, object, choices) do
{:error, _message} = res -> {:ignore, res}
res -> {:commit, res}
end
end)
res
end
def poll_vote(%{assigns: %{user: user}} = conn, %{"id" => id, "choices" => choices}) do def poll_vote(%{assigns: %{user: user}} = conn, %{"id" => id, "choices" => choices}) do
with %Object{} = object <- Object.get_by_id(id), with %Object{} = object <- Object.get_by_id(id),
true <- object.data["type"] == "Question", true <- object.data["type"] == "Question",
%Activity{} = activity <- Activity.get_create_by_object_ap_id(object.data["id"]), %Activity{} = activity <- Activity.get_create_by_object_ap_id(object.data["id"]),
true <- Visibility.visible_for_user?(activity, user), true <- Visibility.visible_for_user?(activity, user),
{:ok, _activities, object} <- CommonAPI.vote(user, object, choices) do {:ok, _activities, object} <- get_cached_vote_or_vote(user, object, choices) do
conn conn
|> put_view(StatusView) |> put_view(StatusView)
|> try_render("poll.json", %{object: object, for: user}) |> try_render("poll.json", %{object: object, for: user})