/usr/share/icingaweb2/modules/monitoring/library/Monitoring/Hook/DataviewExtensionHook.php is in icingaweb2-module-monitoring 2.1.0-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/* Icinga Web 2 | (c) 2013-2015 Icinga Development Team | GPLv2+ */
namespace Icinga\Module\Monitoring\Hook;
abstract class DataviewExtensionHook
{
public function getAdditionalQueryColumns($queryName)
{
$cols = $this->provideAdditionalQueryColumns($queryName);
if (! is_array($cols)) {
return array();
}
return $cols;
}
abstract public function provideAdditionalQueryColumns($queryName);
}
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