784 lines
30 KiB
PHP
784 lines
30 KiB
PHP
<?php
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use LibreNMS\RRD\RrdDefinition;
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use LibreNMS\Exceptions\JsonAppException;
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use LibreNMS\Exceptions\JsonAppPollingFailedException;
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use LibreNMS\Exceptions\JsonAppParsingFailedException;
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use LibreNMS\Exceptions\JsonAppBlankJsonException;
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use LibreNMS\Exceptions\JsonAppMissingKeysException;
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use LibreNMS\Exceptions\JsonAppWrongVersionException;
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use LibreNMS\Exceptions\JsonAppExtendErroredException;
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function bulk_sensor_snmpget($device, $sensors)
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{
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$oid_per_pdu = get_device_oid_limit($device);
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$sensors = array_chunk($sensors, $oid_per_pdu);
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$cache = array();
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foreach ($sensors as $chunk) {
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$oids = array_map(function ($data) {
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return $data['sensor_oid'];
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}, $chunk);
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$oids = implode(' ', $oids);
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$multi_response = snmp_get_multi_oid($device, $oids, '-OUQnte');
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$cache = array_merge($cache, $multi_response);
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}
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return $cache;
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}
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/**
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* @param $device
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* @param string $type type/class of sensor
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* @return array
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*/
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function sensor_precache($device, $type)
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{
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$sensor_cache = array();
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if (file_exists('includes/polling/sensors/pre-cache/'. $device['os'] .'.inc.php')) {
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include 'includes/polling/sensors/pre-cache/'. $device['os'] .'.inc.php';
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}
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return $sensor_cache;
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}
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function poll_sensor($device, $class)
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{
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global $config, $memcache, $agent_sensors;
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$sensors = array();
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$misc_sensors = array();
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$all_sensors = array();
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foreach (dbFetchRows("SELECT * FROM `sensors` WHERE `sensor_class` = ? AND `device_id` = ?", array($class, $device['device_id'])) as $sensor) {
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if ($sensor['poller_type'] == 'agent') {
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// Agent sensors are polled in the unix-agent
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} elseif ($sensor['poller_type'] == 'ipmi') {
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$misc_sensors[] = $sensor;
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} else {
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$sensors[] = $sensor;
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}
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}
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$snmp_data = bulk_sensor_snmpget($device, $sensors);
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$sensor_cache = sensor_precache($device, $class);
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foreach ($sensors as $sensor) {
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echo 'Checking (' . $sensor['poller_type'] . ") $class " . $sensor['sensor_descr'] . '... '.PHP_EOL;
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if ($sensor['poller_type'] == 'snmp') {
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$mibdir = null;
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$sensor_value = trim(str_replace('"', '', $snmp_data[$sensor['sensor_oid']]));
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if (file_exists('includes/polling/sensors/'. $class .'/'. $device['os'] .'.inc.php')) {
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require 'includes/polling/sensors/'. $class .'/'. $device['os'] .'.inc.php';
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}
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if ($class == 'temperature') {
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preg_match('/[\d\.\-]+/', $sensor_value, $temp_response);
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if (!empty($temp_response[0])) {
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$sensor_value = $temp_response[0];
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}
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} elseif ($class == 'state') {
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if (!is_numeric($sensor_value)) {
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$state_value = dbFetchCell(
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'SELECT `state_value`
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FROM `state_translations` LEFT JOIN `sensors_to_state_indexes`
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ON `state_translations`.`state_index_id` = `sensors_to_state_indexes`.`state_index_id`
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WHERE `sensors_to_state_indexes`.`sensor_id` = ?
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AND `state_translations`.`state_descr` LIKE ?',
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array($sensor['sensor_id'], $sensor_value)
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);
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d_echo('State value of ' . $sensor_value . ' is ' . $state_value . "\n");
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if (is_numeric($state_value)) {
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$sensor_value = $state_value;
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}
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}
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}//end if
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unset($mib);
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unset($mibdir);
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$sensor['new_value'] = $sensor_value;
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$all_sensors[] = $sensor;
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}
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}
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foreach ($misc_sensors as $sensor) {
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if ($sensor['poller_type'] == 'agent') {
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if (isset($agent_sensors)) {
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$sensor_value = $agent_sensors[$class][$sensor['sensor_type']][$sensor['sensor_index']]['current'];
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$sensor['new_value'] = $sensor_value;
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$all_sensors[] = $sensor;
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} else {
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echo "no agent data!\n";
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continue;
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}
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} elseif ($sensor['poller_type'] == 'ipmi') {
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echo " already polled.\n";
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// ipmi should probably move here from the ipmi poller file (FIXME)
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continue;
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} else {
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echo "unknown poller type!\n";
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continue;
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}//end if
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}
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record_sensor_data($device, $all_sensors);
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}//end poll_sensor()
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/**
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* @param $device
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* @param $all_sensors
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*/
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function record_sensor_data($device, $all_sensors)
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{
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$supported_sensors = array(
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'current' => 'A',
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'frequency' => 'Hz',
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'runtime' => 'Min',
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'humidity' => '%',
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'fanspeed' => 'rpm',
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'power' => 'W',
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'voltage' => 'V',
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'temperature' => 'C',
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'dbm' => 'dBm',
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'charge' => '%',
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'load' => '%',
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'state' => '#',
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'signal' => 'dBm',
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'airflow' => 'cfm',
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'snr' => 'SNR',
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'pressure' => 'kPa',
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'cooling' => 'W',
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);
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foreach ($all_sensors as $sensor) {
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$class = ucfirst($sensor['sensor_class']);
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$unit = $supported_sensors[$class];
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$sensor_value = $sensor['new_value'];
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$prev_sensor_value = $sensor['sensor_current'];
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if ($sensor_value == -32768) {
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echo 'Invalid (-32768) ';
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$sensor_value = 0;
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}
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if ($sensor['sensor_divisor'] && $sensor_value !== 0) {
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$sensor_value = ($sensor_value / $sensor['sensor_divisor']);
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}
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if ($sensor['sensor_multiplier']) {
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$sensor_value = ($sensor_value * $sensor['sensor_multiplier']);
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}
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if (isset($sensor['user_func']) && function_exists($sensor['user_func'])) {
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$sensor_value = $sensor['user_func']($sensor_value);
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}
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$rrd_name = get_sensor_rrd_name($device, $sensor);
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$rrd_def = RrdDefinition::make()->addDataset('sensor', 'GAUGE');
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echo "$sensor_value $unit\n";
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$fields = array(
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'sensor' => $sensor_value,
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);
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$tags = array(
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'sensor_class' => $sensor['sensor_class'],
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'sensor_type' => $sensor['sensor_type'],
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'sensor_descr' => $sensor['sensor_descr'],
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'sensor_index' => $sensor['sensor_index'],
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'rrd_name' => $rrd_name,
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'rrd_def' => $rrd_def
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);
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data_update($device, 'sensor', $tags, $fields);
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// FIXME also warn when crossing WARN level!
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if ($sensor['sensor_limit_low'] != '' && $prev_sensor_value > $sensor['sensor_limit_low'] && $sensor_value < $sensor['sensor_limit_low'] && $sensor['sensor_alert'] == 1) {
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echo 'Alerting for '.$device['hostname'].' '.$sensor['sensor_descr']."\n";
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log_event("$class {$sensor['sensor_descr']} under threshold: $sensor_value $unit (< {$sensor['sensor_limit_low']} $unit)", $device, $class, 4, $sensor['sensor_id']);
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} elseif ($sensor['sensor_limit'] != '' && $prev_sensor_value < $sensor['sensor_limit'] && $sensor_value > $sensor['sensor_limit'] && $sensor['sensor_alert'] == 1) {
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echo 'Alerting for '.$device['hostname'].' '.$sensor['sensor_descr']."\n";
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log_event("$class {$sensor['sensor_descr']} above threshold: $sensor_value $unit (> {$sensor['sensor_limit']} $unit)", $device, $class, 4, $sensor['sensor_id']);
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}
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if ($sensor['sensor_class'] == 'state' && $prev_sensor_value != $sensor_value) {
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$trans = array_column(
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dbFetchRows(
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"SELECT `state_translations`.`state_value`, `state_translations`.`state_descr` FROM `sensors_to_state_indexes` LEFT JOIN `state_translations` USING (`state_index_id`) WHERE `sensors_to_state_indexes`.`sensor_id`=? AND `state_translations`.`state_value` IN ($sensor_value,$prev_sensor_value)",
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array($sensor['sensor_id'])
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),
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'state_descr',
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'state_value'
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);
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log_event("$class sensor {$sensor['sensor_descr']} has changed from {$trans[$prev_sensor_value]} ($prev_sensor_value) to {$trans[$sensor_value]} ($sensor_value)", $device, $class, 3, $sensor['sensor_id']);
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}
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if ($sensor_value != $prev_sensor_value) {
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dbUpdate(array('sensor_current' => $sensor_value, 'sensor_prev' => $prev_sensor_value, 'lastupdate' => array('NOW()')), 'sensors', "`sensor_class` = ? AND `sensor_id` = ?", array($class, $sensor['sensor_id']));
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}
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}
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}
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/**
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* @param array $device The device to poll
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* @param bool $force_module Ignore device module overrides
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* @return bool
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*/
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function poll_device($device, $force_module = false)
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{
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global $config, $device;
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$device_start = microtime(true);
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$attribs = get_dev_attribs($device['device_id']);
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$device['attribs'] = $attribs;
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load_os($device);
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$device['snmp_max_repeaters'] = $attribs['snmp_max_repeaters'];
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$device['snmp_max_oid'] = $attribs['snmp_max_oid'];
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unset($array);
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// Start counting device poll time
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echo 'Hostname: ' . $device['hostname'] . PHP_EOL;
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echo 'Device ID: ' . $device['device_id'] . PHP_EOL;
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echo 'OS: ' . $device['os'];
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$ip = dnslookup($device);
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$db_ip = isset($ip) ? inet_pton($ip) : null;
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if (!empty($db_ip) && inet6_ntop($db_ip) != inet6_ntop($device['ip'])) {
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log_event('Device IP changed to ' . $ip, $device, 'system', 3);
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dbUpdate(array('ip' => $db_ip), 'devices', 'device_id=?', array($device['device_id']));
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}
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if ($config['os'][$device['os']]['group']) {
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$device['os_group'] = $config['os'][$device['os']]['group'];
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echo ' ('.$device['os_group'].')';
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}
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echo PHP_EOL.PHP_EOL;
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unset($poll_update);
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unset($poll_update_query);
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unset($poll_separator);
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$poll_update_array = array();
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$update_array = array();
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$host_rrd = rrd_name($device['hostname'], '', '');
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if ($config['norrd'] !== true && !is_dir($host_rrd)) {
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mkdir($host_rrd);
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echo "Created directory : $host_rrd\n";
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}
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$response = device_is_up($device, true);
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if ($response['status'] == '1') {
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$graphs = array();
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$oldgraphs = array();
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if ($device['snmp_disable']) {
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$config['poller_modules'] = array();
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} else {
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// we always want the core module to be included, prepend it
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$config['poller_modules'] = array('core' => true) + $config['poller_modules'];
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}
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printChangedStats(true); // don't count previous stats
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foreach ($config['poller_modules'] as $module => $module_status) {
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$os_module_status = $config['os'][$device['os']]['poller_modules'][$module];
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d_echo("Modules status: Global" . (isset($module_status) ? ($module_status ? '+ ' : '- ') : ' '));
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d_echo("OS" . (isset($os_module_status) ? ($os_module_status ? '+ ' : '- ') : ' '));
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d_echo("Device" . (isset($attribs['poll_' . $module]) ? ($attribs['poll_' . $module] ? '+ ' : '- ') : ' '));
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if ($force_module === true ||
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$attribs['poll_'.$module] ||
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($os_module_status && !isset($attribs['poll_'.$module])) ||
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($module_status && !isset($os_module_status) && !isset($attribs['poll_' . $module]))) {
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$start_memory = memory_get_usage();
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$module_start = microtime(true);
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echo "\n#### Load poller module $module ####\n";
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include "includes/polling/$module.inc.php";
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$module_time = microtime(true) - $module_start;
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$module_mem = (memory_get_usage() - $start_memory);
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printf("\n>> Runtime for poller module '%s': %.4f seconds with %s bytes\n", $module, $module_time, $module_mem);
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printChangedStats();
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echo "#### Unload poller module $module ####\n\n";
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// save per-module poller stats
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$tags = array(
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'module' => $module,
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'rrd_def' => RrdDefinition::make()->addDataset('poller', 'GAUGE', 0),
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'rrd_name' => array('poller-perf', $module),
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);
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$fields = array(
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'poller' => $module_time,
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);
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data_update($device, 'poller-perf', $tags, $fields);
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// remove old rrd
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$oldrrd = rrd_name($device['hostname'], array('poller', $module, 'perf'));
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if (is_file($oldrrd)) {
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unlink($oldrrd);
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}
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unset($tags, $fields, $oldrrd);
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} elseif (isset($attribs['poll_'.$module]) && $attribs['poll_'.$module] == '0') {
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echo "Module [ $module ] disabled on host.\n\n";
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} elseif (isset($os_module_status) && $os_module_status == '0') {
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echo "Module [ $module ] disabled on os.\n\n";
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} else {
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echo "Module [ $module ] disabled globally.\n\n";
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}
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}
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// Update device_groups
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UpdateGroupsForDevice($device['device_id']);
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if (!$force_module && !empty($graphs)) {
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echo "Enabling graphs: ";
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// FIXME EVENTLOGGING -- MAKE IT SO WE DO THIS PER-MODULE?
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// This code cycles through the graphs already known in the database and the ones we've defined as being polled here
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// If there any don't match, they're added/deleted from the database.
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// Ideally we should hold graphs for xx days/weeks/polls so that we don't needlessly hide information.
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foreach (dbFetch('SELECT `graph` FROM `device_graphs` WHERE `device_id` = ?', array($device['device_id'])) as $graph) {
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if (isset($graphs[$graph['graph']])) {
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$oldgraphs[$graph['graph']] = true;
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} else {
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dbDelete('device_graphs', '`device_id` = ? AND `graph` = ?', array($device['device_id'], $graph['graph']));
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}
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}
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foreach ($graphs as $graph => $value) {
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if (!isset($oldgraphs[$graph])) {
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echo '+';
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dbInsert(array('device_id' => $device['device_id'], 'graph' => $graph), 'device_graphs');
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}
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echo $graph.' ';
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}
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echo PHP_EOL;
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}//end if
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// Ping response
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if (can_ping_device($attribs) === true && !empty($response['ping_time'])) {
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$tags = array(
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'rrd_def' => RrdDefinition::make()->addDataset('ping', 'GAUGE', 0, 65535),
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);
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$fields = array(
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'ping' => $response['ping_time'],
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);
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$update_array['last_ping'] = array('NOW()');
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$update_array['last_ping_timetaken'] = $response['ping_time'];
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data_update($device, 'ping-perf', $tags, $fields);
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}
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$device_time = round(microtime(true) - $device_start, 3);
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// Poller performance
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if (!empty($device_time)) {
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$tags = array(
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'rrd_def' => RrdDefinition::make()->addDataset('poller', 'GAUGE', 0),
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'module' => 'ALL',
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);
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$fields = array(
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'poller' => $device_time,
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);
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data_update($device, 'poller-perf', $tags, $fields);
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}
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if (!$force_module) {
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// don't update last_polled time if we are forcing a specific module to be polled
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$update_array['last_polled'] = array('NOW()');
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$update_array['last_polled_timetaken'] = $device_time;
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}
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$updated = dbUpdate($update_array, 'devices', '`device_id` = ?', array($device['device_id']));
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if ($updated) {
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d_echo('Updating ' . $device['hostname'] . PHP_EOL);
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}
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echo "\nPolled in $device_time seconds\n";
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// check if the poll took to long and log an event
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if ($device_time > $config['rrd']['step']) {
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log_event("Polling took longer than " . round($config['rrd']['step'] / 60, 2) .
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' minutes! This will cause gaps in graphs.', $device, 'system', 5);
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}
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unset($storage_cache);
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// Clear cache of hrStorage ** MAYBE FIXME? **
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unset($cache);
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// Clear cache (unify all things here?)
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return true; // device was polled
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}
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return false; // device not polled
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}//end poll_device()
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/**
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* if no rrd_name parameter is passed, the MIB name is used as the rrd_file_name
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*/
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function poll_mib_def($device, $mib_name_table, $mib_subdir, $mib_oids, $mib_graphs, &$graphs, $rrd_name = null)
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{
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echo "This is poll_mib_def Processing\n";
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$mib = null;
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list($mib, $file) = explode(':', $mib_name_table, 2);
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if (is_null($rrd_name)) {
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if (str_i_contains($mib_name_table, 'UBNT')) {
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$rrd_name = strtolower($mib);
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} else {
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$rrd_name = strtolower($file);
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}
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}
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|
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$rrd_def = new RrdDefinition();
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$oidglist = array();
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$oidnamelist = array();
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foreach ($mib_oids as $oid => $param) {
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$oidindex = $param[0];
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$oiddsname = $param[1];
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$oiddsdesc = $param[2];
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$oiddstype = $param[3];
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$oiddsopts = $param[4];
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if (empty($oiddsopts)) {
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$rrd_def->addDataset($oiddsname, $oiddstype, null, 100000000000);
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} else {
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$min = array_key_exists('min', $oiddsopts) ? $oiddsopts['min'] : null;
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$max = array_key_exists('max', $oiddsopts) ? $oiddsopts['max'] : null;
|
|
$heartbeat = array_key_exists('heartbeat', $oiddsopts) ? $oiddsopts['heartbeat'] : null;
|
|
$rrd_def->addDataset($oiddsname, $oiddstype, $min, $max, $heartbeat);
|
|
}
|
|
|
|
if ($oidindex != '') {
|
|
$fulloid = $oid.'.'.$oidindex;
|
|
} else {
|
|
$fulloid = $oid;
|
|
}
|
|
|
|
// Add to oid GET list
|
|
$oidglist[] = $fulloid;
|
|
$oidnamelist[] = $oiddsname;
|
|
}//end foreach
|
|
|
|
// Implde for LibreNMS Version
|
|
$oidilist = implode(' ', $oidglist);
|
|
|
|
$snmpdata = snmp_get_multi($device, $oidilist, '-OQUs', $mib);
|
|
if (isset($GLOBALS['exec_status']['exitcode']) && $GLOBALS['exec_status']['exitcode'] !== 0) {
|
|
print_debug(' ERROR, bad snmp response');
|
|
return false;
|
|
}
|
|
|
|
$oid_count = 0;
|
|
$fields = array();
|
|
foreach ($oidglist as $fulloid) {
|
|
list($splitoid, $splitindex) = explode('.', $fulloid, 2);
|
|
$val = $snmpdata[$splitindex][$splitoid];
|
|
if (is_numeric($val)) {
|
|
$fields[$oidnamelist[$oid_count]] = $val;
|
|
} elseif (preg_match("/^\"(.*)\"$/", $val, $number) && is_numeric($number[1])) {
|
|
$fields[$oidnamelist[$oid_count]] = $number[1];
|
|
} else {
|
|
$fields[$oidnamelist[$oid_count]] = 'U';
|
|
}
|
|
$oid_count++;
|
|
}
|
|
|
|
$tags = compact('rrd_def');
|
|
data_update($device, $rrd_name, $tags, $fields);
|
|
|
|
foreach ($mib_graphs as $graphtoenable) {
|
|
$graphs[$graphtoenable] = true;
|
|
}
|
|
|
|
return true;
|
|
}//end poll_mib_def()
|
|
|
|
|
|
function get_main_serial($device)
|
|
{
|
|
if ($device['os_group'] == 'cisco') {
|
|
$serial_output = snmp_get_multi($device, 'entPhysicalSerialNum.1 entPhysicalSerialNum.1001', '-OQUs', 'ENTITY-MIB:OLD-CISCO-CHASSIS-MIB');
|
|
if (!empty($serial_output[1]['entPhysicalSerialNum'])) {
|
|
return $serial_output[1]['entPhysicalSerialNum'];
|
|
} elseif (!empty($serial_output[1000]['entPhysicalSerialNum'])) {
|
|
return $serial_output[1000]['entPhysicalSerialNum'];
|
|
} elseif (!empty($serial_output[1001]['entPhysicalSerialNum'])) {
|
|
return $serial_output[1001]['entPhysicalSerialNum'];
|
|
}
|
|
}
|
|
}//end get_main_serial()
|
|
|
|
|
|
function location_to_latlng($device)
|
|
{
|
|
global $config;
|
|
if (function_check('curl_version') !== true) {
|
|
d_echo("Curl support for PHP not enabled\n");
|
|
return false;
|
|
}
|
|
$bad_loc = false;
|
|
$device_location = $device['location'];
|
|
if (!empty($device_location)) {
|
|
$new_device_location = preg_replace("/ /", "+", $device_location);
|
|
$new_device_location = preg_replace('/[^A-Za-z0-9\-\+]/', '', $new_device_location); // Removes special chars.
|
|
// We have a location string for the device.
|
|
$loc = parse_location($device_location);
|
|
if (!is_array($loc)) {
|
|
$loc = dbFetchRow("SELECT `lat`,`lng` FROM `locations` WHERE `location`=? LIMIT 1", array($device_location));
|
|
}
|
|
if (is_array($loc) === false) {
|
|
// Grab data from which ever Geocode service we use.
|
|
switch ($config['geoloc']['engine']) {
|
|
case "google":
|
|
default:
|
|
d_echo("Google geocode engine being used\n");
|
|
$api_key = ($config['geoloc']['api_key']);
|
|
if (!empty($api_key)) {
|
|
d_echo("Use Google API key: $api_key\n");
|
|
$api_url = "https://maps.googleapis.com/maps/api/geocode/json?address=$new_device_location&key=$api_key";
|
|
} else {
|
|
$api_url = "https://maps.googleapis.com/maps/api/geocode/json?address=$new_device_location";
|
|
}
|
|
break;
|
|
}
|
|
$curl_init = curl_init($api_url);
|
|
set_curl_proxy($curl_init);
|
|
curl_setopt($curl_init, CURLOPT_RETURNTRANSFER, true);
|
|
curl_setopt($curl_init, CURLOPT_TIMEOUT, 2);
|
|
curl_setopt($curl_init, CURLOPT_TIMEOUT_MS, 2000);
|
|
curl_setopt($curl_init, CURLOPT_CONNECTTIMEOUT, 5);
|
|
$data = json_decode(curl_exec($curl_init), true);
|
|
// Parse the data from the specific Geocode services.
|
|
switch ($config['geoloc']['engine']) {
|
|
case "google":
|
|
default:
|
|
if ($data['status'] == 'OK') {
|
|
$loc = $data['results'][0]['geometry']['location'];
|
|
} else {
|
|
$bad_loc = true;
|
|
}
|
|
break;
|
|
}
|
|
if ($bad_loc === true) {
|
|
d_echo("Bad lat / lng received\n");
|
|
} else {
|
|
$loc['timestamp'] = array('NOW()');
|
|
$loc['location'] = $device_location;
|
|
if (dbInsert($loc, 'locations')) {
|
|
d_echo("Device lat/lng created\n");
|
|
} else {
|
|
d_echo("Device lat/lng could not be created\n");
|
|
}
|
|
}
|
|
} else {
|
|
d_echo("Using cached lat/lng from other device\n");
|
|
}
|
|
}
|
|
}// end location_to_latlng()
|
|
|
|
/**
|
|
* Update the application status and output in the database.
|
|
*
|
|
* Metric values should have key for of the matching name.
|
|
* If you have multiple groups of metrics, you can group them with multiple sub arrays
|
|
* The group name (key) will be prepended to each metric in that group, separated by an underscore
|
|
* The special group "none" will not be prefixed.
|
|
*
|
|
* @param array $app app from the db, including app_id
|
|
* @param string $response This should be the full output
|
|
* @param array $metrics an array of additional metrics to store in the database for alerting
|
|
* @param string $status This is the current value for alerting
|
|
*/
|
|
function update_application($app, $response, $metrics = array(), $status = '')
|
|
{
|
|
if (!is_numeric($app['app_id'])) {
|
|
d_echo('$app does not contain app_id, could not update');
|
|
return;
|
|
}
|
|
|
|
$data = array(
|
|
'app_state' => 'UNKNOWN',
|
|
'app_status' => $status,
|
|
'timestamp' => array('NOW()'),
|
|
);
|
|
|
|
if ($response != '' && $response !== false) {
|
|
if (str_contains($response, array(
|
|
'Traceback (most recent call last):',
|
|
))) {
|
|
$data['app_state'] = 'ERROR';
|
|
} else {
|
|
$data['app_state'] = 'OK';
|
|
}
|
|
}
|
|
|
|
if ($data['app_state'] != $app['app_state']) {
|
|
$data['app_state_prev'] = $app['app_state'];
|
|
}
|
|
dbUpdate($data, 'applications', '`app_id` = ?', array($app['app_id']));
|
|
|
|
// update metrics
|
|
if (!empty($metrics)) {
|
|
$db_metrics = dbFetchRows('SELECT * FROM `application_metrics` WHERE app_id=?', array($app['app_id']));
|
|
$db_metrics = array_by_column($db_metrics, 'metric');
|
|
|
|
// allow two level metrics arrays, flatten them and prepend the group name
|
|
if (is_array(current($metrics))) {
|
|
$metrics = array_reduce(
|
|
array_keys($metrics),
|
|
function ($carry, $metric_group) use ($metrics) {
|
|
if ($metric_group == 'none') {
|
|
$prefix = '';
|
|
} else {
|
|
$prefix = $metric_group . '_';
|
|
}
|
|
|
|
foreach ($metrics[$metric_group] as $metric_name => $value) {
|
|
$carry[$prefix . $metric_name] = $value;
|
|
}
|
|
return $carry;
|
|
},
|
|
array()
|
|
);
|
|
}
|
|
|
|
echo ': ';
|
|
foreach ($metrics as $metric_name => $value) {
|
|
if (!isset($db_metrics[$metric_name])) {
|
|
// insert new metric
|
|
dbInsert(
|
|
array(
|
|
'app_id' => $app['app_id'],
|
|
'metric' => $metric_name,
|
|
'value' => (int)$value,
|
|
),
|
|
'application_metrics'
|
|
);
|
|
echo '+';
|
|
} elseif ((int)$value != (int)$db_metrics[$metric_name]['value']) {
|
|
dbUpdate(
|
|
array(
|
|
'value' => (int)$value,
|
|
'value_prev' => $db_metrics[$metric_name]['value'],
|
|
),
|
|
'application_metrics',
|
|
'app_id=? && metric=?',
|
|
array($app['app_id'], $metric_name)
|
|
);
|
|
echo 'U';
|
|
} else {
|
|
echo '.';
|
|
}
|
|
|
|
unset($db_metrics[$metric_name]);
|
|
}
|
|
|
|
// remove no longer existing metrics (generally should not happen
|
|
foreach ($db_metrics as $db_metric) {
|
|
dbDelete(
|
|
'application_metrics',
|
|
'app_id=? && metric=?',
|
|
array($app['app_id'], $db_metric['metric'])
|
|
);
|
|
echo '-';
|
|
}
|
|
|
|
echo PHP_EOL;
|
|
}
|
|
}
|
|
|
|
function convert_to_celsius($value)
|
|
{
|
|
$value = ($value - 32) / 1.8;
|
|
return sprintf('%.02f', $value);
|
|
}
|
|
|
|
|
|
/**
|
|
* This is to make it easier polling apps. Also to help standardize around JSON.
|
|
*
|
|
* The required keys for the returned JSON are as below.
|
|
* version - The version of the snmp extend script. Should be numeric and at least 1.
|
|
* error - Error code from the snmp extend script. Should be > 0 (0 will be ignored and negatives are reserved)
|
|
* errorString - Text to describe the error.
|
|
* data - An key with an array with the data to be used.
|
|
*
|
|
* If the app returns an error, an exception will be raised.
|
|
* Positive numbers will be errors returned by the extend script.
|
|
*
|
|
* Possible parsing related errors:
|
|
* -2 : Failed to fetch data from the device
|
|
* -3 : Could not decode the JSON.
|
|
* -4 : Empty JSON parsed, meaning blank JSON was returned.
|
|
* -5 : Valid json, but missing required keys
|
|
* -6 : Returned version is less than the min version.
|
|
*
|
|
* Error checking may also be done via checking the exceptions listed below.
|
|
* JsonAppPollingFailedException, -2 : Empty return from SNMP.
|
|
* JsonAppParsingFailedException, -3 : Could not parse the JSON.
|
|
* JsonAppBlankJsonException, -4 : Blank JSON.
|
|
* JsonAppMissingKeysException, -5 : Missing required keys.
|
|
* JsonAppWrongVersionException , -6 : Older version than supported.
|
|
* JsonAppExtendErroredException : Polling and parsing was good, but the returned data has an error set.
|
|
* This may be checked via $e->getParsedJson() and then checking the
|
|
* keys error and errorString.
|
|
* The error value can be accessed via $e->getCode()
|
|
* The output can be accessed via $->getOutput() Only returned for code -3 or lower.
|
|
* The parsed JSON can be access via $e->getParsedJson()
|
|
*
|
|
* All of the exceptions extend JsonAppException.
|
|
*
|
|
* If the error is less than -1, you can assume it is a legacy snmp extend script.
|
|
*
|
|
* @param array $device
|
|
* @param string $extend the extend name. For example, if 'zfs' is passed it will be converted to 'nsExtendOutputFull.3.122.102.115'.
|
|
* @param integer $min_version the minimum version to accept for the returned JSON. default: 1
|
|
*
|
|
* @return array The json output data parsed into an array
|
|
* @throws JsonAppPollingFailedException
|
|
*/
|
|
function json_app_get($device, $extend, $min_version = 1)
|
|
{
|
|
$output = snmp_get($device, 'nsExtendOutputFull.'.string_to_oid($extend), '-Oqv', 'NET-SNMP-EXTEND-MIB');
|
|
|
|
// make sure we actually get something back
|
|
if (empty($output)) {
|
|
throw new JsonAppPollingFailedException("Empty return from snmp_get.", -2);
|
|
}
|
|
|
|
// turn the JSON into a array
|
|
$parsed_json = json_decode(stripslashes($output), true);
|
|
|
|
// improper JSON or something else was returned. Populate the variable with an error.
|
|
if (json_last_error() !== JSON_ERROR_NONE) {
|
|
throw new JsonAppParsingFailedException("Invalid JSON", $output, -3);
|
|
}
|
|
|
|
// There no keys in the array, meaning '{}' was was returned
|
|
if (empty($parsed_json)) {
|
|
throw new JsonAppBlankJsonException("Blank JSON returned.", $output, -4);
|
|
}
|
|
|
|
// It is a legacy JSON app extend, meaning these are not set
|
|
if (!isset($parsed_json['error'], $parsed_json['data'], $parsed_json['errorString'], $parsed_json['version'])) {
|
|
throw new JsonAppMissingKeysException("Legacy script or extend error, missing one or more required keys.", $output, $parsed_json, -5);
|
|
}
|
|
|
|
if ($parsed_json['version'] < $min_version) {
|
|
throw new JsonAppWrongVersionException("Script,'".$parsed_json['version']."', older than required version of '$min_version'", $output, $parsed_json, -6);
|
|
}
|
|
|
|
if ($parsed_json['error'] != 0) {
|
|
throw new JsonAppExtendErroredException("Script returned exception: {$parsed_json['errorString']}", $output, $parsed_json, $parsed_json['error']);
|
|
}
|
|
|
|
return $parsed_json;
|
|
}
|