<?php
/*
** Zabbix
** Copyright (C) 2001-2022 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.
**/
require_once dirname(__FILE__).'/../../include/blocks.inc.php';
class CControllerWidgetProblemHostsView extends CControllerWidget {
public function __construct() {
parent::__construct();
$this->setType(WIDGET_PROBLEM_HOSTS);
$this->setValidationRules([
'name' => 'string',
'fields' => 'json'
]);
}
protected function doAction() {
$fields = $this->getForm()->getFieldsData();
$filter_groupids = $fields['groupids'] ? getSubGroups($fields['groupids']) : null;
$filter_hostids = $fields['hostids'] ? $fields['hostids'] : null;
$filter_problem = ($fields['problem'] !== '') ? $fields['problem'] : null;
$filter_severities = $fields['severities']
? $fields['severities']
: range(TRIGGER_SEVERITY_NOT_CLASSIFIED, TRIGGER_SEVERITY_COUNT - 1);
$filter_show_suppressed = $fields['show_suppressed'];
$filter_ext_ack = $fields['ext_ack'];
if ($fields['exclude_groupids']) {
$exclude_groupids = getSubGroups($fields['exclude_groupids']);
if ($filter_hostids === null) {
// Get all groups if no selected groups defined.
if ($filter_groupids === null) {
$filter_groupids = array_keys(API::HostGroup()->get([
'output' => [],
'real_hosts' => true,
'preservekeys' => true
]));
}
$filter_groupids = array_diff($filter_groupids, $exclude_groupids);
// Get available hosts.
$filter_hostids = array_keys(API::Host()->get([
'output' => [],
'groupids' => $filter_groupids,
'preservekeys' => true
]));
}
$exclude_hostids = array_keys(API::Host()->get([
'output' => [],
'groupids' => $exclude_groupids,
'preservekeys' => true
]));
$filter_hostids = array_diff($filter_hostids, $exclude_hostids);
}
// Get host groups.
$groups = API::HostGroup()->get([
'output' => ['groupid', 'name'],
'groupids' => $filter_groupids,
'hostids' => $filter_hostids,
'monitored_hosts' => true,
'preservekeys' => true
]);
foreach ($groups as $groupid => $group) {
$groups[$groupid]['highest_severity'] = TRIGGER_SEVERITY_NOT_CLASSIFIED;
$groups[$groupid]['hosts_total_count'] = 0;
$groups[$groupid]['hosts_problematic_unack_count'] = 0;
$groups[$groupid]['hosts_problematic_unack_list'] = [];
if ($filter_ext_ack != EXTACK_OPTION_UNACK) {
$groups[$groupid]['hosts_problematic_count'] = 0;
$groups[$groupid]['hosts_problematic_list'] = [];
}
}
// Get hosts.
$hosts = API::Host()->get([
'output' => ['hostid', 'name', 'maintenanceid', 'maintenance_status', 'maintenance_type'],
'selectGroups' => ['groupid'],
'groupids' => array_keys($groups),
'hostids' => $filter_hostids,
'filter' => [
'maintenance_status' => null
],
'monitored_hosts' => true,
'preservekeys' => true
]);
// Get triggers.
$triggers = API::Trigger()->get([
'output' => [],
'selectHosts' => ['hostid'],
'hostids' => array_keys($hosts),
'groupids' => array_keys($groups),
'filter' => [
'value' => TRIGGER_VALUE_TRUE
],
'monitored' => true,
'preservekeys' => true
]);
// Add default values for each host group and count hosts inside.
foreach ($hosts as $host) {
foreach ($host['groups'] as $group) {
if (array_key_exists($group['groupid'], $groups)) {
$groups[$group['groupid']]['hosts_total_count']++;
}
}
}
// Get problems.
$problems = API::Problem()->get([
'output' => ['objectid', 'acknowledged', 'severity'],
'groupids' => array_keys($groups),
'hostids' => array_keys($hosts),
'objectids' => array_keys($triggers),
'search' => [
'name' => $filter_problem
],
'severities' => $filter_severities,
'evaltype' => $fields['evaltype'],
'tags' => $fields['tags'],
'acknowledged' => ($filter_ext_ack == EXTACK_OPTION_UNACK) ? false : null,
'suppressed' => ($filter_show_suppressed == ZBX_PROBLEM_SUPPRESSED_FALSE) ? false : null
]);
$hosts_data = [];
// Process problems.
foreach ($problems as $problem) {
foreach ($triggers[$problem['objectid']]['hosts'] as $trigger_host) {
if (!array_key_exists($trigger_host['hostid'], $hosts)) {
continue;
}
$host = $hosts[$trigger_host['hostid']];
// Prepare hosts data for tables displayed in hintboxes.
if (!array_key_exists($host['hostid'], $hosts_data)) {
$hosts_data[$host['hostid']] = [
'host' => $host['name'],
'hostid' => $host['hostid'],
'maintenanceid' => $host['maintenanceid'],
'maintenance_status' => $host['maintenance_status'],
'maintenance_type' => $host['maintenance_type'],
'severities' => array_fill_keys($filter_severities, 0)
];
}
// Count number of host problems per severity.
$hosts_data[$host['hostid']]['severities'][$problem['severity']]++;
// Propagate problem to all host groups in which host is added.
foreach ($host['groups'] as $group) {
$groupid = $group['groupid'];
if (!array_key_exists($groupid, $groups)) {
continue;
}
// Searches for the highest severity set for filtered problems in particular host group.
if ($problem['severity'] > $groups[$groupid]['highest_severity']) {
$groups[$groupid]['highest_severity'] = $problem['severity'];
}
/**
* Counts:
* - problematic hosts (hosts with events in 'problem' state);
* - unacknowledged problematic hosts (hosts with unacknowledged events in 'problem' state).
*
* Creates a list of problematic hosts and unacknowledged problematic hosts for each host group.
*
* Each host need to be counted only one time in each host group.
* Host name is added for sorting.
*/
if ($filter_ext_ack != EXTACK_OPTION_UNACK
&& !array_key_exists($host['hostid'], $groups[$groupid]['hosts_problematic_list'])) {
$groups[$groupid]['hosts_problematic_list'][$host['hostid']]['name'] = $host['name'];
$groups[$groupid]['hosts_problematic_count']++;
}
if ($problem['acknowledged'] == EVENT_NOT_ACKNOWLEDGED
&& !array_key_exists($host['hostid'], $groups[$groupid]['hosts_problematic_unack_list'])) {
$groups[$groupid]['hosts_problematic_unack_list'][$host['hostid']]['name'] = $host['name'];
$groups[$groupid]['hosts_problematic_unack_count']++;
}
}
}
}
// Sort results.
foreach ($groups as $groupid => $group) {
if ($group['hosts_total_count'] != 0) {
CArrayHelper::sort($groups[$groupid]['hosts_problematic_unack_list'], ['name']);
if ($filter_ext_ack != EXTACK_OPTION_UNACK) {
CArrayHelper::sort($groups[$groupid]['hosts_problematic_list'], ['name']);
}
}
else {
// Unset groups without any monitored hosts.
unset($groups[$groupid]);
}
}
CArrayHelper::sort($groups, ['name']);
// Pass results to view.
$this->setResponse(new CControllerResponseData([
'name' => $this->getInput('name', $this->getDefaultName()),
'filter' => [
'hostids' => $fields['hostids'],
'problem' => $fields['problem'],
'severities' => $filter_severities,
'show_suppressed' => $fields['show_suppressed'],
'hide_empty_groups' => $fields['hide_empty_groups'],
'ext_ack' => $fields['ext_ack']
],
'hosts_data' => $hosts_data,
'groups' => $groups,
'user' => [
'debug_mode' => $this->getDebugMode()
],
'allowed_ui_problems' => $this->checkAccess(CRoleHelper::UI_MONITORING_PROBLEMS)
]));
}
}