alias Pleroma.Websub
alias Pleroma.Web.Websub.WebsubServerSubscription
alias Pleroma.Web.OStatus.FeedRepresenter
+ alias Pleroma.Web.OStatus
import Ecto.Query
+ @websub_verifier Application.get_env(:pleroma, :websub_verifier)
+
def verify(subscription, getter \\ &HTTPoison.get/3 ) do
challenge = Base.encode16(:crypto.strong_rand_bytes(8))
- lease_seconds = NaiveDateTime.diff(subscription.valid_until, subscription.inserted_at) |> to_string
+ lease_seconds = NaiveDateTime.diff(subscription.valid_until, subscription.updated_at) |> to_string
params = %{
"hub.challenge": challenge,
])
end)
end
+
+ def incoming_subscription_request(user, params) do
+ with {:ok, topic} <- valid_topic(params, user),
+ {:ok, lease_time} <- lease_time(params),
+ secret <- params["hub.secret"],
+ callback <- params["hub.callback"]
+ do
+ subscription = get_subscription(topic, callback)
+ data = %{
+ state: subscription.state || "requested",
+ topic: topic,
+ secret: secret,
+ callback: callback
+ }
+
+ change = Ecto.Changeset.change(subscription, data)
+ websub = Repo.insert_or_update!(change)
+
+ change = Ecto.Changeset.change(websub, %{valid_until: NaiveDateTime.add(websub.updated_at, lease_time)})
+ websub = Repo.update!(change)
+
+ # Just spawn that for now, maybe pool later.
+ spawn(fn -> @websub_verifier.verify(websub) end)
+
+ {:ok, websub}
+ else {:error, reason} ->
+ {:error, reason}
+ end
+ end
+
+ defp get_subscription(topic, callback) do
+ Repo.get_by(WebsubServerSubscription, topic: topic, callback: callback) || %WebsubServerSubscription{}
+ 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