App\Models\Forum\Authorize::aclCheck PHP Method

    public static function aclCheck($user, $authOption, $forum)
    {
        $groupIds = $user->groupIds();
        $authOptionId = AuthOption::where('auth_option', $authOption)->value('auth_option_id');
        // the group may contain direct acl entry
        $isAuthorized = static::directAcl($groupIds, $authOptionId)->where('forum_id', $forum->forum_id)->exists();
        // the group may also be part of role which may have matching
        // acl entry
        if (!$isAuthorized) {
            $isAuthorized = static::roleAcl($groupIds, $authOptionId)->where('forum_id', $forum->forum_id)->exists();
        }
        // there's actually another one (phpbb_acl_users) but doesn't seem
        // to contain anything but old-ish banlist?
        return $isAuthorized;
    }

 public function checkForumTopicStore($user, $forum)
 {
     $prefix = 'forum.topic.store.';
     $this->ensureLoggedIn($user);
     $this->ensureCleanRecord($user);
     if ($user->isGMT()) {
         return 'ok';
     }
     if (!$this->doCheckUser($user, 'ForumView', $forum)->can()) {
         return $prefix . 'no_forum_access';
     }
     if (!$forum->isOpen()) {
         return $prefix . 'forum_closed';
     }
     if (!ForumAuthorize::aclCheck($user, 'f_post', $forum)) {
         return $prefix . 'no_permission';
     }
     return 'ok';
 }