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defmodule Pleroma.Web.Websub.WebsubController do
use Pleroma.Web, :controller
alias Pleroma.Web.Websub.WebsubServerSubscription
alias Pleroma.{Repo, User}
alias Pleroma.Web.OStatus
alias Pleroma.Web.Websub
def websub_subscription_request(conn, %{"nickname" => nickname} = params) do
user = User.get_cached_by_nickname(nickname)
with {:ok, topic} <- valid_topic(params, user),
{:ok, lease_time} <- lease_time(params),
secret <- params["hub.secret"]
do
data = %{
state: "requested",
topic: topic,
secret: secret,
callback: params["hub.callback"]
}
change = Ecto.Changeset.change(%WebsubServerSubscription{}, data)
websub = Repo.insert!(change)
change = Ecto.Changeset.change(websub, %{valid_until: NaiveDateTime.add(websub.inserted_at, lease_time)})
websub = Repo.update!(change)
# Just spawn that for now, maybe pool later.
spawn(fn -> Websub.verify(websub) end)
conn
|> send_resp(202, "Accepted")
else {:error, reason} ->
conn
|> send_resp(500, reason)
end
end
defp lease_time(%{"hub.lease_seconds" => lease_seconds}) do
{:ok, String.to_integer(lease_seconds)}
end
defp lease_time(_) do
{:ok, 60 * 60 * 24 * 3} # three days
end
defp valid_topic(%{"hub.topic" => topic}, user) do
if topic == OStatus.feed_path(user) do
{:ok, topic}
else
{:error, "Wrong topic requested, expected #{OStatus.feed_path(user)}, got #{topic}"}
end
end
end
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