<?php

/*
 * Observium Network Management and Monitoring System
 * Copyright (C) 2006-2011, Observium Developers - http://www.observium.org
 *
 * 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 3 of the License, or
 * (at your option) any later version.
 *
 * See COPYING for more details.
 */

unset($poll_device);

$snmpdata    = snmp_get_multi($device, 'sysUpTime.0 sysLocation.0 sysContact.0 sysName.0', '-OQUs', 'SNMPv2-MIB');
$poll_device = $snmpdata[0];

$poll_device['sysDescr']    = snmp_get($device, 'sysDescr.0', '-Oqv', 'SNMPv2-MIB');
$poll_device['sysObjectID'] = snmp_get($device, 'sysObjectID.0', '-Oqvn', 'SNMPv2-MIB');
$poll_device['sysName']     = strtolower($poll_device['sysName']);

if (!empty($agent_data['uptime'])) {
    list($uptime) = explode(' ', $agent_data['uptime']);
    $uptime       = round($uptime);
    echo "Using UNIX Agent Uptime ($uptime)\n";
}

if (empty($uptime)) {
    $hrSystemUptime = snmp_get($device, 'hrSystemUptime.0', '-Oqv', 'HOST-RESOURCES-MIB');
    if (!empty($hrSystemUptime) && !strpos($hrSystemUptime, 'No') && ($device['os'] != 'windows')) {
        echo 'Using hrSystemUptime ('.$hrSystemUptime.")\n";
        $agent_uptime = $uptime;
        // Move uptime into agent_uptime
        // HOST-RESOURCES-MIB::hrSystemUptime.0 = Timeticks: (63050465) 7 days, 7:08:24.65
        $hrSystemUptime                  = str_replace('(', '', $hrSystemUptime);
        $hrSystemUptime                  = str_replace(')', '', $hrSystemUptime);
        list($days,$hours, $mins, $secs) = explode(':', $hrSystemUptime);
        list($secs, $microsecs)          = explode('.', $secs);
        $hours  = ($hours + ($days * 24));
        $mins   = ($mins + ($hours * 60));
        $secs   = ($secs + ($mins * 60));
        $uptime = $secs;
    }
    else {
        echo 'Using SNMP Agent Uptime ('.$poll_device['sysUpTime'].")\n";
        // SNMPv2-MIB::sysUpTime.0 = Timeticks: (2542831) 7:03:48.31
        $poll_device['sysUpTime']         = str_replace('(', '', $poll_device['sysUpTime']);
        $poll_device['sysUpTime']         = str_replace(')', '', $poll_device['sysUpTime']);
        list($days, $hours, $mins, $secs) = explode(':', $poll_device['sysUpTime']);
        list($secs, $microsecs)           = explode('.', $secs);
        $hours  = ($hours + ($days * 24));
        $mins   = ($mins + ($hours * 60));
        $secs   = ($secs + ($mins * 60));
        $uptime = $secs;
    }//end if
}//end if

// Use snmpEngineTime (68 year rollover) to cross-reference for false positives in device rebooting due to sysUpTime rollover issues
$snmpEngineTime = (integer) snmp_get($device, 'snmpEngineTime.0', '-OUqv', 'SNMP-FRAMEWORK-MIB');
if (!is_numeric($snmpEngineTime)) {
    $snmpEngineTime = 0;
}

if (is_numeric($uptime)) {
    if ($uptime < $device['uptime'] && $uptime >= $snmpEngineTime) {
        notify($device, 'Device rebooted: '.$device['hostname'], 'Device Rebooted : '.$device['hostname'].' '.formatUptime($uptime).' ago.');
        log_event('Device rebooted after '.formatUptime($device['uptime']), $device, 'reboot', $device['uptime']);
    }

    $uptime_rrd = $config['rrd_dir'].'/'.$device['hostname'].'/uptime.rrd';

    if (!is_file($uptime_rrd)) {
        rrdtool_create($uptime_rrd, 'DS:uptime:GAUGE:600:0:U '.$config['rrd_rra']);
    }

    rrdtool_update($uptime_rrd, 'N:'.$uptime);

    $graphs['uptime'] = true;

    echo 'Uptime: '.formatUptime($uptime)."\n";

    $update_array['uptime'] = $uptime;
}//end if

$poll_device['sysLocation'] = str_replace('"', '', $poll_device['sysLocation']);

// Remove leading & trailing backslashes added by VyOS/Vyatta/EdgeOS
$poll_device['sysLocation'] = trim($poll_device['sysLocation'], '\\');

// Rewrite sysLocation if there is a mapping array (database too?)
if (!empty($poll_device['sysLocation']) && is_array($config['location_map'])) {
    $poll_device['sysLocation'] = rewrite_location($poll_device['sysLocation']);
}

$poll_device['sysContact'] = str_replace('"', '', $poll_device['sysContact']);

// Remove leading & trailing backslashes added by VyOS/Vyatta/EdgeOS
$poll_device['sysContact'] = trim($poll_device['sysContact'], '\\');


foreach (array('sysLocation', 'sysContact') as $elem) {
    if ($poll_device[$elem] == 'not set') {
        $poll_device[$elem] = '';
    }
}

// Save results of various polled values to the database
foreach (array('sysContact', 'sysObjectID', 'sysName', 'sysDescr') as $elem) {
    if ($poll_device[$elem] && $poll_device[$elem] != $device[$elem]) {
        $update_array[$elem] = $poll_device[$elem];
        log_event("$elem -> ".$poll_device[$elem], $device, 'system');
    }
}

if ($poll_device['sysLocation'] && $device['location'] != $poll_device['sysLocation']) {
    if (!get_dev_attrib($device, 'override_sysLocation_bool')) {
        $update_array['location'] = $poll_device['sysLocation'];
        log_event('Location -> '.$poll_device['sysLocation'], $device, 'system');
    }
}