Imbo\Auth\AccessControl\Adapter\AbstractAdapter::hasAccess PHP Method

    public function hasAccess($publicKey, $resource, $user = null)
    {
        $accessList = $this->getAccessListForPublicKey($publicKey) ?: [];
        foreach ($accessList as $acl) {
            // If the group specified has not been defined, throw an exception to help the user
            if (!isset($acl['users'])) {
                throw new InvalidArgumentException('Missing property "users" in access rule', 500);
            }
            // If a user is specified, ensure the public key has access to the user
            $userAccess = !$user || $acl['users'] === '*' || in_array($user, $acl['users']);
            if (!$userAccess) {
                continue;
            }
            // Figure out which resources the public key has access to, based on group or
            // explicit definition
            $resources = isset($acl['resources']) ? $acl['resources'] : [];
            $group = isset($acl['group']) ? $acl['group'] : false;
            // If we the rule contains a group, get resource from it
            if ($group) {
                $resources = $this->getGroup($group);
                // If the group has not been defined, throw an exception to help debug the problem
                if ($resources === false) {
                    throw new InvalidArgumentException('Group "' . $group . '" is not defined', 500);
                }
            }
            if (in_array($resource, $resources)) {
                return true;
            }
        }
        return false;
    }