68 lines
2.1 KiB
PHP
68 lines
2.1 KiB
PHP
|
<?php
|
||
|
|
/* Icinga Web 2 | (c) 2013-2015 Icinga Development Team | GPLv2+ */
|
||
|
|
|
||
|
|
namespace Icinga\Module\Monitoring\Object;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Expand macros in string in the context of MonitoredObjects
|
||
|
|
*/
|
||
|
|
class Macro
|
||
|
|
{
|
||
|
|
/**
|
||
|
|
* Known icinga macros
|
||
|
|
*
|
||
|
|
* @var array
|
||
|
|
*/
|
||
|
|
private static $icingaMacros = array(
|
||
|
|
'HOSTNAME' => 'host_name',
|
||
|
|
'HOSTADDRESS' => 'host_address',
|
||
|
|
'SERVICEDESC' => 'service_description',
|
||
|
|
'host.name' => 'host_name',
|
||
|
|
'host.address' => 'host_address',
|
||
|
|
'service.description' => 'service_description'
|
||
|
|
);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Return the given string with macros being resolved
|
||
|
|
*
|
||
|
|
* @param string $input The string in which to look for macros
|
||
|
|
* @param MonitoredObject|stdClass $object The host or service used to resolve macros
|
||
|
|
*
|
||
|
|
* @return string The substituted or unchanged string
|
||
|
|
*/
|
||
|
|
public static function resolveMacros($input, $object)
|
||
|
|
{
|
||
|
|
$matches = array();
|
||
|
|
if (preg_match_all('@\$([^\$\s]+)\$@', $input, $matches)) {
|
||
|
|
foreach ($matches[1] as $key => $value) {
|
||
|
|
$newValue = self::resolveMacro($value, $object);
|
||
|
|
if ($newValue !== $value) {
|
||
|
|
$input = str_replace($matches[0][$key], $newValue, $input);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $input;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Resolve a macro based on the given object
|
||
|
|
*
|
||
|
|
* @param string $macro The macro to resolve
|
||
|
|
* @param MonitoredObject|stdClass $object The object used to resolve the macro
|
||
|
|
*
|
||
|
|
* @return string The new value or the macro if it cannot be resolved
|
||
|
|
*/
|
||
|
|
public static function resolveMacro($macro, $object)
|
||
|
|
{
|
||
|
|
if (array_key_exists($macro, self::$icingaMacros) && $object->{self::$icingaMacros[$macro]} !== false) {
|
||
|
|
return $object->{self::$icingaMacros[$macro]};
|
||
|
|
}
|
||
|
|
if (array_key_exists($macro, $object->customvars)) {
|
||
|
|
return $object->customvars[$macro];
|
||
|
|
}
|
||
|
|
|
||
|
|
return $macro;
|
||
|
|
}
|
||
|
|
}
|