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<?php declare(strict_types = 1);
/*
** Zabbix
** Copyright (C) 2001-2020 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.
**/
/**
* Base controller for the "Monitoring->Hosts" page and the "Monitoring->Hosts" asynchronous refresh page.
*/
abstract class CControllerHost extends CController {
/**
* Prepares the host list based on the given filter and sorting options.
*
* @param array $filter Filter options.
* @param string $filter['name'] Filter hosts by name.
* @param array $filter['groupids'] Filter hosts by host groups.
* @param string $filter['ip'] Filter hosts by IP.
* @param string $filter['dns'] Filter hosts by DNS.
* @param string $filter['port'] Filter hosts by port.
* @param string $filter['status'] Filter hosts by status.
* @param string $filter['evaltype'] Filter hosts by tags.
* @param string $filter['tags'] Filter hosts by tag names and values.
* @param string $filter['severities'] Filter problems on hosts by severities.
* @param string $filter['show_suppressed'] Filter supressed problems.
* @param int $filter['maintenance_status'] Filter hosts by maintenance.
* @param int $filter['page'] Page number.
* @param string $sort Sorting field.
* @param string $sortorder Sorting order.
*
* @return array
*/
protected function prepareData(array $filter, string $sort, string $sortorder): array {
$child_groups = [];
// Multiselect host groups.
$multiselect_hostgroup_data = [];
if ($filter['groupids']) {
$groups = API::HostGroup()->get([
'output' => ['groupid', 'name'],
'groupids' => $filter['groupids'],
'preservekeys' => true
]);
if ($groups) {
$subgroup_names = [];
foreach ($groups as $group) {
$subgroup_names[] = $group['name'].'/';
$multiselect_hostgroup_data[] = [
'id' => $group['groupid'],
'name' => $group['name']
];
}
$groups += API::HostGroup()->get([
'output' => ['groupid'],
'search' => ['name' => $subgroup_names],
'startSearch' => true,
'searchByAny' => true,
'preservekeys' => true
]);
}
$groupids = array_keys($groups);
}
else {
$groupids = null;
}
$limit = CSettingsHelper::get(CSettingsHelper::SEARCH_LIMIT) + 1;
$hosts = API::Host()->get([
'output' => ['hostid', 'name', 'status'],
'evaltype' => $filter['evaltype'],
'tags' => $filter['tags'],
'inheritedTags' => true,
'groupids' => $groupids,
'severities' => $filter['severities'] ? $filter['severities'] : null,
'withProblemsSuppressed' => $filter['severities']
? (($filter['show_suppressed'] == ZBX_PROBLEM_SUPPRESSED_TRUE) ? null : false)
: null,
'search' => [
'name' => ($filter['name'] === '') ? null : $filter['name'],
'ip' => ($filter['ip'] === '') ? null : $filter['ip'],
'dns' => ($filter['dns'] === '') ? null : $filter['dns']
],
'filter' => [
'status' => ($filter['status'] == -1) ? null : $filter['status'],
'port' => ($filter['port'] === '') ? null : $filter['port'],
'maintenance_status' => ($filter['maintenance_status'] == HOST_MAINTENANCE_STATUS_ON)
? null
: HOST_MAINTENANCE_STATUS_OFF,
],
'sortfield' => 'name',
'limit' => $limit,
'preservekeys' => true
]);
// Sort for paging so we know which IDs go to which page.
CArrayHelper::sort($hosts, [['field' => $sort, 'order' => $sortorder]]);
$view_curl = (new CUrl('zabbix.php'))->setArgument('action', 'host.view');
// Split result array and create paging.
$paging = CPagerHelper::paginate($filter['page'], $hosts, $sortorder, $view_curl);
// Get additonal data to limited host amount.
$hosts = API::Host()->get([
'output' => ['hostid', 'name', 'status', 'maintenance_status', 'maintenanceid', 'maintenance_type',
'available', 'snmp_available', 'jmx_available', 'ipmi_available', 'error', 'ipmi_error', 'snmp_error',
'jmx_error'
],
'selectInterfaces' => ['ip', 'dns', 'port', 'main', 'type', 'useip'],
'selectGraphs' => API_OUTPUT_COUNT,
'selectHttpTests' => API_OUTPUT_COUNT,
'selectTags' => ['tag', 'value'],
'selectInheritedTags' => ['tag', 'value'],
'hostids' => array_keys($hosts),
'preservekeys' => true
]);
// Re-sort the results again.
CArrayHelper::sort($hosts, [['field' => $sort, 'order' => $sortorder]]);
$maintenanceids = [];
// Select triggers and problems to calculate number of problems for each host.
$triggers = API::Trigger()->get([
'output' => [],
'selectHosts' => ['hostid'],
'hostids' => array_keys($hosts),
'skipDependent' => true,
'monitored' => true,
'preservekeys' => true
]);
$problems = API::Problem()->get([
'output' => ['eventid', 'objectid', 'severity'],
'objectids' => array_keys($triggers),
'source' => EVENT_SOURCE_TRIGGERS,
'object' => EVENT_OBJECT_TRIGGER,
'suppressed' => ($filter['show_suppressed'] == ZBX_PROBLEM_SUPPRESSED_TRUE) ? null : false
]);
// Group all problems per host per severity.
$host_problems = [];
foreach ($problems as $problem) {
foreach ($triggers[$problem['objectid']]['hosts'] as $trigger_host) {
$host_problems[$trigger_host['hostid']][$problem['severity']][$problem['eventid']] = true;
}
}
foreach ($hosts as &$host) {
// Count number of dashboards for each host.
$host['dashboards'] = count(getHostDashboards($host['hostid']));
CArrayHelper::sort($host['interfaces'], [['field' => 'main', 'order' => ZBX_SORT_DOWN]]);
if ($host['status'] == HOST_STATUS_MONITORED && $host['maintenance_status'] == HOST_MAINTENANCE_STATUS_ON) {
$maintenanceids[$host['maintenanceid']] = true;
}
// Fill empty arrays for hosts without problems.
if (!array_key_exists($host['hostid'], $host_problems)) {
$host_problems[$host['hostid']] = [];
}
// Count the number of problems (as value) per severity (as key).
for ($severity = TRIGGER_SEVERITY_COUNT - 1; $severity >= TRIGGER_SEVERITY_NOT_CLASSIFIED; $severity--) {
$host['problem_count'][$severity] = array_key_exists($severity, $host_problems[$host['hostid']])
? count($host_problems[$host['hostid']][$severity])
: 0;
}
// Merge host tags with template tags, and skip duplicate tags and values.
if (!$host['inheritedTags']) {
$tags = $host['tags'];
}
elseif (!$host['tags']) {
$tags = $host['inheritedTags'];
}
else {
$tags = $host['tags'];
foreach ($host['inheritedTags'] as $template_tag) {
foreach ($tags as $host_tag) {
// Skip tags with same name and value.
if ($host_tag['tag'] === $template_tag['tag']
&& $host_tag['value'] === $template_tag['value']) {
continue 2;
}
}
$tags[] = $template_tag;
}
}
$host['tags'] = $tags;
}
unset($host);
$maintenances = [];
if ($maintenanceids) {
$maintenances = API::Maintenance()->get([
'output' => ['name', 'description'],
'maintenanceids' => array_keys($maintenanceids),
'preservekeys' => true
]);
}
$tags = makeTags($hosts, true, 'hostid', ZBX_TAG_COUNT_DEFAULT, $filter['tags']);
foreach ($hosts as &$host) {
$host['tags'] = $tags[$host['hostid']];
}
unset($host);
return [
'paging' => $paging,
'view_curl' => $view_curl,
'hosts' => $hosts,
'maintenances' => $maintenances,
'multiselect_hostgroup_data' => $multiselect_hostgroup_data,
'filter' => $filter
];
}
}
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