icingaweb2-module-director/library/Director/Objects/IcingaService.php

765 lines
21 KiB
PHP

<?php
namespace Icinga\Module\Director\Objects;
use Icinga\Data\Filter\Filter;
use Icinga\Exception\IcingaException;
use Icinga\Module\Director\Data\PropertiesFilter;
use Icinga\Module\Director\Db;
use Icinga\Module\Director\Db\Cache\PrefetchCache;
use Icinga\Module\Director\DirectorObject\Automation\ExportInterface;
use Icinga\Module\Director\Exception\DuplicateKeyException;
use Icinga\Module\Director\IcingaConfig\IcingaConfig;
use Icinga\Module\Director\IcingaConfig\IcingaConfigHelper as c;
use Icinga\Module\Director\IcingaConfig\IcingaLegacyConfigHelper as c1;
use Icinga\Module\Director\Objects\Extension\FlappingSupport;
use Icinga\Module\Director\Resolver\HostServiceBlacklist;
use InvalidArgumentException;
use RuntimeException;
class IcingaService extends IcingaObject implements ExportInterface
{
use FlappingSupport;
protected $table = 'icinga_service';
protected $defaultProperties = [
'id' => null,
'object_name' => null,
'object_type' => null,
'disabled' => 'n',
'display_name' => null,
'host_id' => null,
'service_set_id' => null,
'check_command_id' => null,
'max_check_attempts' => null,
'check_period_id' => null,
'check_interval' => null,
'retry_interval' => null,
'check_timeout' => null,
'enable_notifications' => null,
'enable_active_checks' => null,
'enable_passive_checks' => null,
'enable_event_handler' => null,
'enable_flapping' => null,
'enable_perfdata' => null,
'event_command_id' => null,
'flapping_threshold_high' => null,
'flapping_threshold_low' => null,
'volatile' => null,
'zone_id' => null,
'command_endpoint_id' => null,
'notes' => null,
'notes_url' => null,
'action_url' => null,
'icon_image' => null,
'icon_image_alt' => null,
'use_agent' => null,
'apply_for' => null,
'use_var_overrides' => null,
'assign_filter' => null,
'template_choice_id' => null,
];
protected $relations = [
'host' => 'IcingaHost',
'service_set' => 'IcingaServiceSet',
'check_command' => 'IcingaCommand',
'event_command' => 'IcingaCommand',
'check_period' => 'IcingaTimePeriod',
'command_endpoint' => 'IcingaEndpoint',
'zone' => 'IcingaZone',
'template_choice' => 'IcingaTemplateChoiceService',
];
protected $booleans = [
'enable_notifications' => 'enable_notifications',
'enable_active_checks' => 'enable_active_checks',
'enable_passive_checks' => 'enable_passive_checks',
'enable_event_handler' => 'enable_event_handler',
'enable_flapping' => 'enable_flapping',
'enable_perfdata' => 'enable_perfdata',
'volatile' => 'volatile',
'use_agent' => 'use_agent',
'use_var_overrides' => 'use_var_overrides',
];
protected $intervalProperties = [
'check_interval' => 'check_interval',
'check_timeout' => 'check_timeout',
'retry_interval' => 'retry_interval',
];
protected $supportsGroups = true;
protected $supportsCustomVars = true;
protected $supportsFields = true;
protected $supportsImports = true;
protected $supportsApplyRules = true;
protected $supportsSets = true;
protected $supportsChoices = true;
protected $supportedInLegacy = true;
protected $keyName = ['host_id', 'service_set_id', 'object_name'];
protected $prioritizedProperties = ['host_id'];
protected $propertiesNotForRendering = [
'id',
'object_name',
'object_type',
'apply_for'
];
/** @var ServiceGroupMembershipResolver */
protected $servicegroupMembershipResolver;
/**
* @return IcingaCommand
* @throws IcingaException
* @throws \Icinga\Exception\NotFoundError
*/
public function getCheckCommand()
{
$id = $this->getSingleResolvedProperty('check_command_id');
return IcingaCommand::loadWithAutoIncId(
$id,
$this->getConnection()
);
}
/**
* @return bool
*/
public function isApplyRule()
{
if ($this->hasBeenAssignedToHostTemplate()) {
return true;
}
return $this->hasProperty('object_type')
&& $this->get('object_type') === 'apply';
}
/**
* @return bool
*/
public function usesVarOverrides()
{
return $this->get('use_var_overrides') === 'y';
}
public function getUniqueIdentifier()
{
if ($this->isTemplate()) {
return $this->getObjectName();
} else {
throw new RuntimeException(
'getUniqueIdentifier() is supported by Service Templates only'
);
}
}
/**
* @return object
* @throws \Icinga\Exception\NotFoundError
*/
public function export()
{
// TODO: ksort in toPlainObject?
$props = (array) $this->toPlainObject();
$props['fields'] = $this->loadFieldReferences();
ksort($props);
return (object) $props;
}
/**
* @param $plain
* @param Db $db
* @param bool $replace
* @return IcingaService
* @throws DuplicateKeyException
* @throws \Icinga\Exception\NotFoundError
*/
public static function import($plain, Db $db, $replace = false)
{
$properties = (array) $plain;
$name = $properties['object_name'];
if ($properties['object_type'] !== 'template') {
throw new InvalidArgumentException(sprintf(
'Can import only Templates, got "%s" for "%s"',
$properties['object_type'],
$name
));
}
$key = [
'object_type' => 'template',
'object_name' => $name
];
if ($replace && static::exists($key, $db)) {
$object = static::load($key, $db);
} elseif (static::exists($key, $db)) {
throw new DuplicateKeyException(
'Service Template "%s" already exists',
$name
);
} else {
$object = static::create([], $db);
}
// $object->newFields = $properties['fields'];
unset($properties['fields']);
$object->setProperties($properties);
return $object;
}
protected function loadFieldReferences()
{
$db = $this->getDb();
$res = $db->fetchAll(
$db->select()->from([
'sf' => 'icinga_service_field'
], [
'sf.datafield_id',
'sf.is_required',
'sf.var_filter',
])->join(['df' => 'director_datafield'], 'df.id = sf.datafield_id', [])
->where('service_id = ?', $this->get('id'))
->order('varname ASC')
);
if (empty($res)) {
return [];
} else {
foreach ($res as $field) {
$field->datafield_id = (int) $field->datafield_id;
}
return $res;
}
}
/**
* @param string $key
* @return $this
*/
protected function setKey($key)
{
if (is_int($key)) {
$this->set('id', $key);
} elseif (is_array($key)) {
foreach (['id', 'host_id', 'service_set_id', 'object_name'] as $k) {
if (array_key_exists($k, $key)) {
$this->set($k, $key[$k]);
}
}
} else {
parent::setKey($key);
}
return $this;
}
/**
* @param $name
* @return $this
* @codingStandardsIgnoreStart
*/
protected function setObject_Name($name)
{
// @codingStandardsIgnoreEnd
if ($name === null && $this->isApplyRule()) {
$name = '';
}
return $this->reallySet('object_name', $name);
}
/**
* Render host_id as host_name
*
* Avoid complaints for method names with underscore:
* @codingStandardsIgnoreStart
*
* @return string
*/
public function renderHost_id()
{
if ($this->hasBeenAssignedToHostTemplate()) {
return '';
}
return $this->renderRelationProperty('host', $this->get('host_id'), 'host_name');
}
/**
* @codingStandardsIgnoreStart
*/
protected function renderLegacyHost_id($value)
{
// @codingStandardsIgnoreEnd
if (is_array($value)) {
$blacklisted = $this->getBlacklistedHostnames();
$c = c1::renderKeyValue('host_name', c1::renderArray(array_diff($value, $blacklisted)));
// blacklisted in this (zoned) scope?
$bl = array_intersect($blacklisted, $value);
if (! empty($bl)) {
$c .= c1::renderKeyValue('# ignored on', c1::renderArray($bl));
}
return $c;
} else {
return parent::renderLegacyHost_id($value);
}
}
/**
* @param IcingaConfig $config
* @throws IcingaException
*/
public function renderToLegacyConfig(IcingaConfig $config)
{
if ($this->get('service_set_id') !== null) {
return;
} elseif ($this->isApplyRule()) {
$this->renderLegacyApplyToConfig($config);
} else {
parent::renderToLegacyConfig($config);
}
}
/**
* @param IcingaConfig $config
* @throws IcingaException
*/
protected function renderLegacyApplyToConfig(IcingaConfig $config)
{
$conn = $this->getConnection();
$assign_filter = $this->get('assign_filter');
$filter = Filter::fromQueryString($assign_filter);
$hostnames = HostApplyMatches::forFilter($filter, $conn);
$this->set('object_type', 'object');
foreach ($this->mapHostsToZones($hostnames) as $zone => $names) {
$this->set('host_id', $names);
$blacklisted = $this->getBlacklistedHostnames();
$zoneNames = array_diff($names, $blacklisted);
if (empty($zoneNames)) {
continue;
}
$config->configFile('director/' . $zone . '/service_apply', '.cfg')
->addLegacyObject($this);
}
}
/**
* @return string
*/
public function toLegacyConfigString()
{
if ($this->get('service_set_id') !== null) {
return '';
}
$str = parent::toLegacyConfigString();
if (! $this->isDisabled()
&& $this->get('host_id')
&& $this->getRelated('host')->isDisabled()
) {
return "# --- This services host has been disabled ---\n"
. preg_replace('~^~m', '# ', trim($str))
. "\n\n";
} else {
return $str;
}
}
/**
* @return string
*/
public function toConfigString()
{
if ($this->get('service_set_id')) {
return '';
}
$str = parent::toConfigString();
if (! $this->isDisabled()
&& $this->get('host_id')
&& $this->getRelated('host')->isDisabled()
) {
return "/* --- This services host has been disabled ---\n"
// Do not allow strings to break our comment
. str_replace('*/', "* /", $str) . "*/\n";
} else {
return $str;
}
}
/**
* @return string
*/
protected function renderObjectHeader()
{
if ($this->isApplyRule()
&& !$this->hasBeenAssignedToHostTemplate()
&& $this->get('apply_for') !== null
) {
$name = $this->getObjectName();
$extraName = '';
if (c::stringHasMacro($name)) {
$extraName = c::renderKeyValue('name', c::renderStringWithVariables($name));
$name = '';
} elseif ($name !== '') {
$name = ' ' . c::renderString($name);
}
return sprintf(
"%s %s%s for (config in %s) {\n",
$this->getObjectTypeName(),
$this->getType(),
$name,
$this->get('apply_for')
) . $extraName;
}
return parent::renderObjectHeader();
}
/**
* @return string
*/
protected function getLegacyObjectKeyName()
{
if ($this->isTemplate()) {
return 'name';
} else {
return 'service_description';
}
}
/**
* @return bool
*/
protected function hasBeenAssignedToHostTemplate()
{
$hostId = $this->get('host_id');
return $hostId && $this->getRelatedObject(
'host',
$hostId
)->isTemplate();
}
/**
* @return string
*/
protected function renderSuffix()
{
if ($this->isApplyRule() || $this->usesVarOverrides()) {
return $this->renderImportHostVarOverrides() . parent::renderSuffix();
} else {
return parent::renderSuffix();
}
}
/**
* @return string
*/
protected function renderImportHostVarOverrides()
{
if (! $this->connection) {
throw new RuntimeException(
'Cannot render services without an assigned DB connection'
);
}
return "\n import DirectorOverrideTemplate\n";
}
/**
* @return string
*/
protected function renderCustomExtensions()
{
$output = '';
if ($this->hasBeenAssignedToHostTemplate()) {
// TODO: use assignment renderer?
$filter = sprintf(
'assign where %s in host.templates',
c::renderString($this->get('host'))
);
$output .= "\n " . $filter . "\n";
}
$blacklist = $this->getBlacklistedHostnames();
if (! empty($blacklist)) {
if (count($blacklist) === 1) {
$output .= sprintf(
" ignore where host.name == %s\n",
c::renderString($blacklist[0])
);
} else {
$output .= sprintf(
" ignore where host.name in %s\n",
c::renderArray($blacklist)
);
}
}
// A hand-crafted command endpoint overrides use_agent
if ($this->get('command_endpoint_id') !== null) {
return $output;
}
if ($this->get('use_agent') === 'y') {
return $output . c::renderKeyValue('command_endpoint', 'host_name');
} elseif ($this->get('use_agent') === 'n') {
return $output . c::renderKeyValue('command_endpoint', c::renderPhpValue(null));
} else {
return $output;
}
}
/**
* @return array
*/
public function getBlacklistedHostnames()
{
// Hint: if ($this->isApplyRule()) would be nice, but apply rules are
// not enough, one might want to blacklist single services from Sets
// assigned to single Hosts.
if (PrefetchCache::shouldBeUsed()) {
$lookup = PrefetchCache::instance()->hostServiceBlacklist();
} else {
$lookup = new HostServiceBlacklist($this->getConnection());
}
return $lookup->getBlacklistedHostnamesForService($this);
}
/**
* Do not render internal property
*
* Avoid complaints for method names with underscore:
* @codingStandardsIgnoreStart
*
* @return string
*/
public function renderUse_agent()
{
return '';
}
public function renderUse_var_overrides()
{
return '';
}
protected function renderTemplate_choice_id()
{
return '';
}
protected function renderLegacyDisplay_Name()
{
// @codingStandardsIgnoreEnd
return c1::renderKeyValue('display_name', $this->get('display_name'));
}
public function hasCheckCommand()
{
return $this->getSingleResolvedProperty('check_command_id') !== null;
}
public function getOnDeleteUrl()
{
if ($this->get('host_id')) {
return 'director/host/services?name=' . rawurlencode($this->get('host'));
} else {
return parent::getOnDeleteUrl();
}
}
protected function getDefaultZone(IcingaConfig $config = null)
{
if ($this->get('host_id') === null) {
return parent::getDefaultZone();
} else {
return $this->getRelatedObject('host', $this->get('host_id'))
->getRenderingZone($config);
}
}
/**
* @return string
*/
public function createWhere()
{
$where = parent::createWhere();
if (! $this->hasBeenLoadedFromDb()) {
if (null === $this->get('service_set_id')
&& null === $this->get('host_id')
&& null === $this->get('id')
) {
$where .= " AND object_type = 'template'";
}
}
return $where;
}
/**
* TODO: Duplicate code, clean this up, split it into multiple methods
* @param Db|null $connection
* @param string $prefix
* @param null $filter
* @return array
*/
public static function enumProperties(
Db $connection = null,
$prefix = '',
$filter = null
) {
$serviceProperties = [];
if ($filter === null) {
$filter = new PropertiesFilter();
}
$realProperties = static::create()->listProperties();
sort($realProperties);
if ($filter->match(PropertiesFilter::$SERVICE_PROPERTY, 'name')) {
$serviceProperties[$prefix . 'name'] = 'name';
}
foreach ($realProperties as $prop) {
if (!$filter->match(PropertiesFilter::$SERVICE_PROPERTY, $prop)) {
continue;
}
if (substr($prop, -3) === '_id') {
if ($prop === 'template_choice_id') {
continue;
}
$prop = substr($prop, 0, -3);
}
$serviceProperties[$prefix . $prop] = $prop;
}
$serviceVars = [];
if ($connection !== null) {
foreach ($connection->fetchDistinctServiceVars() as $var) {
if ($filter->match(PropertiesFilter::$CUSTOM_PROPERTY, $var->varname, $var)) {
if ($var->datatype) {
$serviceVars[$prefix . 'vars.' . $var->varname] = sprintf(
'%s (%s)',
$var->varname,
$var->caption
);
} else {
$serviceVars[$prefix . 'vars.' . $var->varname] = $var->varname;
}
}
}
}
//$properties['vars.*'] = 'Other custom variable';
ksort($serviceVars);
$props = mt('director', 'Service properties');
$vars = mt('director', 'Custom variables');
$properties = [];
if (!empty($serviceProperties)) {
$properties[$props] = $serviceProperties;
$properties[$props][$prefix . 'groups'] = 'Groups';
}
if (!empty($serviceVars)) {
$properties[$vars] = $serviceVars;
}
$hostProps = mt('director', 'Host properties');
$hostVars = mt('director', 'Host Custom variables');
$hostProperties = IcingaHost::enumProperties($connection, 'host.');
if (array_key_exists($hostProps, $hostProperties)) {
$p = $hostProperties[$hostProps];
if (!empty($p)) {
$properties[$hostProps] = $p;
}
}
if (array_key_exists($vars, $hostProperties)) {
$p = $hostProperties[$vars];
if (!empty($p)) {
$properties[$hostVars] = $p;
}
}
return $properties;
}
protected function beforeStore()
{
parent::beforeStore();
if ($this->isObject()
&& $this->get('service_set_id') === null
&& $this->get('host_id') === null
) {
throw new InvalidArgumentException(
'Cannot store a Service object without a related host'
);
}
}
protected function notifyResolvers()
{
$resolver = $this->getServiceGroupMembershipResolver();
$resolver->addObject($this);
$resolver->refreshDb();
return $this;
}
protected function getServiceGroupMembershipResolver()
{
if ($this->servicegroupMembershipResolver === null) {
$this->servicegroupMembershipResolver = new ServiceGroupMembershipResolver(
$this->getConnection()
);
}
return $this->servicegroupMembershipResolver;
}
public function setServiceGroupMembershipResolver(ServiceGroupMembershipResolver $resolver)
{
$this->servicegroupMembershipResolver = $resolver;
return $this;
}
}