def websub_incoming(conn, %{"id" => id}) do
with "sha1=" <> signature <- hd(get_req_header(conn, "x-hub-signature")),
+ signature <- String.upcase(signature),
%WebsubClientSubscription{} = websub <- Repo.get(WebsubClientSubscription, id),
{:ok, body, _conn} = read_body(conn),
^signature <- Websub.sign(websub.secret, body) do