App\Libraries\OsuAuthorize::checkUserPageEdit PHP Method

    public function checkUserPageEdit($user, $pageOwner)
    {
        $prefix = 'user.page.edit.';
        $this->ensureLoggedIn($user);
        $this->ensureCleanRecord($user);
        $page = $pageOwner->userPage;
        if ($page === null) {
            if (!$user->osu_subscriber) {
                return $prefix . 'require_supporter_tag';
            }
        } else {
            if ($user->getKey() !== $page->poster_id) {
                return $prefix . 'not_owner';
            }
            if ($page->post_edit_locked || $page->topic->isLocked()) {
                return $prefix . 'locked';
            }
        }
        return 'ok';
    }