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freenetis-github/application/models/monitor_host.php @ 3f5d6df7

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<?php defined('SYSPATH') or die('No direct script access.');
/*
* This file is part of open source system FreenetIS
* and it is release under GPLv3 licence.
*
* More info about licence can be found:
* http://www.gnu.org/licenses/gpl-3.0.html
*
* More info about project can be found:
* http://www.freenetis.org/
*
*/

/**
* Monitored hosts
*
* @package Model
*
* @property integer $id
* @property integer $device_id
* @property Device_Model $device
* @property integer $state
* @property integer $state_changed
* @property string $state_changed_date
* @property string $last_attempt_date
* @property string $last_notification_date
* @property float $latency_current
* @property float $latency_min
* @property float $latency_max
* @property float $latency_avg
* @property integer $polls_total
* @property integer $polls_failed
* @property float $availability
* @property integer $priority
*/
class Monitor_host_Model extends ORM
{
protected $belongs_to = array('device');
/**
* State of host is unknown
*/
const STATE_UNKNOWN = 0;
/**
* State of host is up
*/
const STATE_UP = 1;
/**
* State of host is down
*/
const STATE_DOWN = 2;
/**
* States which returns fping
*
* @var array
*/
private static $states = array
(
self::STATE_UP => 'alive',
self::STATE_DOWN => 'unreachable'
);
/**
* Human format of states
*
* @var array
*/
private static $labels = array
(
self::STATE_UP => 'online',
self::STATE_DOWN => 'offline',
self::STATE_UNKNOWN => 'unknown'
);
/**
* Color format of states
*
* @var array
*/
private static $colors = array
(
self::STATE_UP => 'green',
self::STATE_DOWN => 'red',
self::STATE_UNKNOWN => 'red'
);
/**
* Return state as number from string format
*
* @author Michal Kliment
* @param type $text
* @return type
*/
public static function get_state($text)
{
if (($key = arr::search($text, self::$states)) !== FALSE)
return $key;
else
return self::STATE_UNKNOWN;
}
/**
* Return state as label from number format
*
* @author Michal Kliment
* @param type $state
* @return boolean
*/
public static function get_label($state)
{
if (isset(self::$labels[$state]))
return __(self::$labels[$state]);
else
return FALSE;
}
/**
* Return state as color from number format
*
* @author Michal Kliment
* @param type $state
* @return boolean
*/
public static function get_color($state)
{
if (isset(self::$colors[$state]))
return __(self::$colors[$state]);
else
return FALSE;
}
/**
* Return all monitored hosts
*
* @author Michal Kliment
* @param type $priority
* @param string $order_by
* @param type $filter_sql
* @return type
*/
public function get_all_monitored_hosts(
$priority = NULL, $order_by = NULL, $filter_sql = '')
{
$where = '';
// return only hosts with given priority
if ($priority)
$where = 'WHERE priority = '.intval($priority);
// filter
if ($filter_sql != '')
$where = ($where != '') ? $where.' AND '. $filter_sql : 'WHERE '.$filter_sql;
// default order by host's ip address
if (!$order_by)
$order_by = 'INET_ATON(ip_address)';
return $this->db->query("
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SELECT mh.*, SUBSTRING_INDEX(GROUP_CONCAT(ip_address ORDER BY service DESC), ',', 1) AS ip_address
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FROM
(
SELECT
mh.*, d.name AS device_name,
ip_address, ip.id AS ip_address_id, service,
CONCAT(
IF(
ap.name IS NOT NULL AND ap.name <> '', CONCAT(ap.name,' ('), ''
),
IF(
s.street IS NOT NULL, CONCAT(s.street, ' '), ''
),
IF(
ap.street_number IS NOT NULL, CONCAT(ap.street_number,', '), ''
),
t.town,
IF(
t.quarter IS NOT NULL, CONCAT('-',t.quarter), ''
),
', ',
t.zip_code,
IF(
ap.gps IS NOT NULL AND ap.gps <>'', CONCAT(', GPS ', X(ap.gps),'″N ',Y(ap.gps),'″E'), ''
),
IF(
ap.name IS NOT NULL AND ap.name <> '', ')', ''
)
) AS address_point_name, ap.town_id,
CONCAT(
t.town,
IF(
t.quarter <> '', CONCAT('-',t.quarter), ''
),
', ',
t.zip_code
) AS town_name,town,street,d.type,
IFNULL(tr.translated_term, et.value) AS type_name,
u.member_id, m.name AS member_name,
IF(state <> ?, IF(state <> ?, ?, ?), ?) AS state_name,
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0 AS host_id, d.address_point_id
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FROM devices d
JOIN ifaces i ON i.device_id = d.id
JOIN ip_addresses ip ON ip.iface_id = i.id
JOIN monitor_hosts mh ON mh.device_id = d.id
LEFT JOIN address_points ap ON d.address_point_id = ap.id
LEFT JOIN towns t ON ap.town_id = t.id
LEFT JOIN streets s ON ap.street_id = s.id
LEFT JOIN enum_types et ON d.type = et.id
LEFT JOIN translations tr ON et.value = tr.original_term AND lang = 'cs'
LEFT JOIN users u ON d.user_id = u.id
LEFT JOIN members m ON u.member_id = m.id
) mh
$where
GROUP BY mh.device_id
ORDER BY $order_by
", array(self::STATE_UNKNOWN, self::STATE_UP, __('Offline'), __('Online'), __('Unknown')));
}
/**
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* Returns all hosts by given state to notification
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*
* @author Michal Kliment
* @param type $state
* @return type
*/
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public function get_all_hosts_by_state($state)
{
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return $this->db->query("
SELECT * FROM
(
SELECT
mh.*,
d.name,
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d.name AS device_name,
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ip_address,
CEIL(
(
UNIX_TIMESTAMP(last_attempt_date)
- UNIX_TIMESTAMP(state_changed_date)
)/60
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) AS state_changed_diff
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FROM monitor_hosts mh
JOIN devices d ON mh.device_id = d.id
JOIN ifaces i ON i.device_id = d.id
JOIN
(
SELECT ip_address, ip.id AS ip_address_id,
ip.iface_id
FROM ip_addresses ip
ORDER BY ip.service = 1 DESC
) ip ON ip.iface_id = i.id
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WHERE state = ?
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GROUP BY d.id
) h
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WHERE last_notification_date > NOW()
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ORDER BY state_changed_diff
", array($state));
}
/**
* Return maximum diff between state changed date and last attempt date
*
* @author Michal Kliment
* @param type $state
* @return type
*/
public function get_max_state_changed_diff($state)
{
return $this->db->query("
SELECT
MAX(CEIL(
(
UNIX_TIMESTAMP(last_attempt_date)
- UNIX_TIMESTAMP(state_changed_date)
)/60
)) AS state_changed_diff
FROM monitor_hosts mh
WHERE state = ?
", array($state))->current()->state_changed_diff;
}
/**
* Return all priorities
*
* @author Michal Kliment
*/
public function get_all_priorities()
{
return $this->db->query("
SELECT priority AS id, priority
FROM monitor_hosts
GROUP BY priority
");
}
/**
* Update host with data from fping
*
* @author Michal Kliment
* @param type $ip_address
* @param type $state
* @param null $latency
* @return type
*/
public function update_host($ip_address, $state, $latency)
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{
// host is down
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if ($state != self::STATE_UP)
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{
$failed = 1;
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$latency = NULL;
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$interval = Settings::get('monitoring_notification_down_host_interval');
}
else
{
$failed = 0;
$interval = Settings::get('monitoring_notification_up_host_interval');
}
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return $this->db->query("
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UPDATE monitor_hosts mh
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SET
state_changed = IF(state <> ?, 1, 0),
state_changed_date = IF(state <> ?, NOW(), state_changed_date),
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last_notification_date = IF(state <> ?, NOW() + INTERVAL ".intval($interval)." MINUTE, last_notification_date),
state = ?,
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last_attempt_date = NOW(),
latency_current = ?,
latency_min = IF(? IS NOT NULL AND (latency_min IS NULL OR latency_min > ?), ?, latency_min),
latency_max = IF(? IS NOT NULL AND (latency_max IS NULL OR latency_max < ?), ?, latency_max),
latency_avg = (IFNULL(latency_avg,0) * (polls_total - polls_failed) + ?)/(polls_total + 1 - polls_failed - ?),
polls_total = polls_total + 1,
polls_failed = polls_failed + ?,
availability = ROUND((polls_total + 1 - polls_failed - ?)/(polls_total + 1)*100, 2)
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WHERE mh.device_id IN
(
SELECT i.device_id
FROM ip_addresses ip
JOIN ifaces i ON ip.iface_id = i.id
WHERE ip_address = ?
)
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", array
(
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$state,
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$state,
$state,
$state,
$latency,
$latency, $latency, $latency,
$latency, $latency, $latency,
$latency, $failed,
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$failed, $failed,
$ip_address
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));
}
/**
* Adds hosts to monitoring
*
* @author Michal Kliment
* @param type $ids
* @param type $priority
* @return type
*/
public function insert_hosts($ids = array(), $priority = 0)
{
if (!count($ids))
return;
$rows = array();
foreach ($ids as $id)
{
$rows[] = '('.$this->db->escape($id).', '.$this->db->escape($priority).', NOW())';
}
return $this->db->query("
INSERT INTO monitor_hosts (device_id, priority, state_changed_date) VALUES
".implode(', ',$rows)
);
}
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/**
* Updates given hosts by IDs
*
* @author Michal Kliment <kliment@freenetis.org>
* @param array $ids
* @param integer $priority
* @return MySQL_Result
*/
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public function update_hosts($ids = array(), $priority = 0)
{
if (!count($ids))
return;
return $this->db->query("
UPDATE monitor_hosts
SET priority = ?
WHERE device_id IN
(
".implode(', ', $ids)."
)
", $priority);
}
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/**
* Deletes given hosts by IDS from monitoring
*
* @author Michal Kliment <kliment@freenetis.org>
* @param array $ids
* @param string $column
* @return MySQL_Result
*/
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public function delete_hosts($ids = array(), $column = 'device_id')
{
if (!count($ids))
return;
if (!$this->has_column($column))
$column = 'device_id';
return $this->db->query("
DELETE FROM monitor_hosts
WHERE ".$this->db->escape_column($column)." IN
(
".implode(', ', $ids)."
)
");
}
}