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<?php
/*
** Zabbix
** Copyright (C) 2001-2019 Zabbix SIA
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**/
/**
* Convert a correlation condition operator to string.
*
* @param int $operator
*
* @return string
*/
function corrConditionOperatorToString($operator) {
$operators = [
CONDITION_OPERATOR_EQUAL => _('equals'),
CONDITION_OPERATOR_NOT_EQUAL => _('does not equal'),
CONDITION_OPERATOR_LIKE => _('contains'),
CONDITION_OPERATOR_NOT_LIKE => _('does not contain')
];
return $operators[$operator];
}
/**
* Returns correlation condition types or one type depending on input.
*
* @param int $type Default: null. Returns all condition types.
*
* @return mixed Returns condition type and it's string translation as array key => value pair.
*/
function corrConditionTypes($type = null) {
$types = [
ZBX_CORR_CONDITION_OLD_EVENT_TAG => _('Old event tag name'),
ZBX_CORR_CONDITION_NEW_EVENT_TAG => _('New event tag name'),
ZBX_CORR_CONDITION_NEW_EVENT_HOSTGROUP => _('New event host group'),
ZBX_CORR_CONDITION_EVENT_TAG_PAIR => _('Event tag pair'),
ZBX_CORR_CONDITION_OLD_EVENT_TAG_VALUE => _('Old event tag value'),
ZBX_CORR_CONDITION_NEW_EVENT_TAG_VALUE => _('New event tag value')
];
return ($type === null) ? $types : $types[$type];
}
/**
* Returns correlation operation types or one type depending on input.
*
* @param int $type Default: null. Returns all operation types.
*
* @return mixed Returns operation type and it's string translation as array key => value pair.
*/
function corrOperationTypes($type = null) {
$types = [
ZBX_CORR_OPERATION_CLOSE_OLD => _('Close old events'),
ZBX_CORR_OPERATION_CLOSE_NEW => _('Close new event')
];
return ($type === null) ? $types : $types[$type];
}
/**
* Return an array of operators supported by the given correlation condition.
*
* @param int $type Correlation condition type.
*
* @return array Returns array of supported operators.
*/
function getOperatorsByCorrConditionType($type) {
switch ($type) {
case ZBX_CORR_CONDITION_OLD_EVENT_TAG:
case ZBX_CORR_CONDITION_NEW_EVENT_TAG:
case ZBX_CORR_CONDITION_EVENT_TAG_PAIR:
return [CONDITION_OPERATOR_EQUAL];
case ZBX_CORR_CONDITION_OLD_EVENT_TAG_VALUE:
case ZBX_CORR_CONDITION_NEW_EVENT_TAG_VALUE:
return [CONDITION_OPERATOR_EQUAL, CONDITION_OPERATOR_NOT_EQUAL, CONDITION_OPERATOR_LIKE,
CONDITION_OPERATOR_NOT_LIKE
];
case ZBX_CORR_CONDITION_NEW_EVENT_HOSTGROUP:
return [CONDITION_OPERATOR_EQUAL, CONDITION_OPERATOR_NOT_EQUAL];
}
}
/**
* Correlation condition type "host group" contains IDs. IDs are collected and then validated. For other
* condition types, values are returned as they are.
*
* @param array $correlations An array of correlations.
* @param array $correlations['filter'] An array containing arrays of correlation conditions.
* @param array $correlations['filter']['conditions'] An array of correlation conditions.
*
* @return array Returns an array of correlation condition string values.
*/
function corrConditionValueToString(array $correlations) {
$result = [];
$groupids = [];
foreach ($correlations as $i => $correlation) {
$result[$i] = [];
foreach ($correlation['filter']['conditions'] as $j => $condition) {
switch ($condition['type']) {
case ZBX_CORR_CONDITION_OLD_EVENT_TAG:
case ZBX_CORR_CONDITION_NEW_EVENT_TAG:
$result[$i][$j] = ['tag' => $condition['tag']];
break;
case ZBX_CORR_CONDITION_NEW_EVENT_HOSTGROUP:
$result[$i][$j] = ['group' => _('Unknown')];
$groupids[$condition['groupid']] = true;
break;
case ZBX_CORR_CONDITION_EVENT_TAG_PAIR:
$result[$i][$j] = ['oldtag' => $condition['oldtag'], 'newtag' => $condition['newtag']];
break;
case ZBX_CORR_CONDITION_OLD_EVENT_TAG_VALUE:
case ZBX_CORR_CONDITION_NEW_EVENT_TAG_VALUE:
$result[$i][$j] = ['tag' => $condition['tag'], 'value' => $condition['value']];
break;
}
}
}
if ($groupids) {
$groups = API::HostGroup()->get([
'output' => ['name'],
'groupids' => array_keys($groupids),
'preservekeys' => true
]);
if ($groups) {
foreach ($correlations as $i => $correlation) {
foreach ($correlation['filter']['conditions'] as $j => $condition) {
if ($condition['type'] == ZBX_CORR_CONDITION_NEW_EVENT_HOSTGROUP
&& array_key_exists($condition['groupid'], $groups)) {
$result[$i][$j] = ['group' => $groups[$condition['groupid']]['name']];
}
}
}
}
}
return $result;
}
/**
* Return the HTML representation of correlation operation type.
*
* @param array $operation An array of correlation operation data.
* @param int $operation['type'] Correlation operation type.
*
* @return string
*/
function getCorrOperationDescription(array $operation) {
return corrOperationTypes($operation['type']);
}
/**
* Returns the HTML representation of a correlation condition.
*
* @param array $condition Array of correlation condition data.
* @param int $condition['type'] Condition type.
* @param int $condition['operator'] Condition operator.
* @param array $values Array of condition values.
* @param string $values['tag'] Condition event tag.
* @param string $values['group'] Condition host group name.
* @param string $values['oldtag'] Condition event old tag.
* @param string $values['newtag'] Condition event new tag.
* @param string $values['value'] Condition event tag value.
*
* @return array
*/
function getCorrConditionDescription(array $condition, array $values) {
$description = [];
switch ($condition['type']) {
case ZBX_CORR_CONDITION_OLD_EVENT_TAG:
$description[] = _('Old event tag name').' '.corrConditionOperatorToString($condition['operator']).' ';
$description[] = italic(CHtml::encode($values['tag']));
break;
case ZBX_CORR_CONDITION_NEW_EVENT_TAG:
$description[] = _('New event tag name').' '.corrConditionOperatorToString($condition['operator']).' ';
$description[] = italic(CHtml::encode($values['tag']));
break;
case ZBX_CORR_CONDITION_NEW_EVENT_HOSTGROUP:
$description[] = _('New event host group').' '.corrConditionOperatorToString($condition['operator']).' ';
$description[] = italic(CHtml::encode($values['group']));
break;
case ZBX_CORR_CONDITION_EVENT_TAG_PAIR:
$description[] = _('Value of old event tag').' ';
$description[] = italic(CHtml::encode($values['oldtag']));
$description[] = ' '.corrConditionOperatorToString($condition['operator']).' '.
_('value of new event tag').' ';
$description[] = italic(CHtml::encode($values['newtag']));
break;
case ZBX_CORR_CONDITION_OLD_EVENT_TAG_VALUE:
$description[] = _('Value of old event tag').' ';
$description[] = italic(CHtml::encode($values['tag']));
$description[] = ' '.corrConditionOperatorToString($condition['operator']).' ';
$description[] = italic(CHtml::encode($values['value']));
break;
case ZBX_CORR_CONDITION_NEW_EVENT_TAG_VALUE:
$description[] = _('Value of new event tag').' ';
$description[] = italic(CHtml::encode($values['tag']));
$description[] = ' '.corrConditionOperatorToString($condition['operator']).' ';
$description[] = italic(CHtml::encode($values['value']));
break;
}
return $description;
}
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