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<?php
declare(strict_types=1);
namespace Laminas\Permissions\Acl\Assertion;
use Laminas\Permissions\Acl\Acl;
use Laminas\Permissions\Acl\Exception\InvalidArgumentException;
use Laminas\Permissions\Acl\Resource\ResourceInterface;
use Laminas\Permissions\Acl\Role\RoleInterface;
use function call_user_func;
use function is_callable;
class CallbackAssertion implements AssertionInterface
{
/** @var callable */
protected $callback;
/**
* @param callable $callback The assertion callback
*/
public function __construct($callback)
{
if (! is_callable($callback)) {
throw new InvalidArgumentException('Invalid callback provided; not callable');
}
$this->callback = $callback;
}
/**
* Returns true if and only if the assertion conditions are met.
*
* This method is passed the ACL, Role, Resource, and privilege to which the
* authorization query applies.
*
* If the $role, $resource, or $privilege parameters are null, it means
* that the query applies to all Roles, Resources, or privileges,
* respectively.
*
* @param string $privilege
* @return bool
*/
public function assert(
Acl $acl,
?RoleInterface $role = null,
?ResourceInterface $resource = null,
$privilege = null
) {
return (bool) call_user_func($this->callback, $acl, $role, $resource, $privilege);
}
}