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path: root/modules-available/statistics/pages/machine.inc.php
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<?php

class SubPage
{

	public static function doPreprocess()
	{

	}

	public static function doRender()
	{
		self::showMachine(Request::get('uuid', false, 'string'));
	}

	private static function fillSessionInfo(&$row)
	{
		if (!empty($row['currentuser'])) {
			$row['username'] = $row['currentuser'];
			if (strlen($row['currentsession']) === 36 && Module::isAvailable('dozmod')) {
				$lecture = Database::queryFirst("SELECT lectureid, displayname FROM sat.lecture WHERE lectureid = :lectureid",
					array('lectureid' => $row['currentsession']));
				if ($lecture !== false) {
					$row['currentsession'] = $lecture['displayname'];
					$row['lectureid'] = $lecture['lectureid'];
				}
				$row['session'] = $row['currentsession'];
				return;
			}
		}
		$res = Database::simpleQuery('SELECT dateline, username, data FROM statistic'
			. " WHERE clientip = :ip AND typeid = '.vmchooser-session-name'"
			. ' AND dateline BETWEEN :start AND :end', array(
			'ip' => $row['clientip'],
			'start' => $row['logintime'] - 60,
			'end' => $row['logintime'] + 300,
		));
		$session = false;
		foreach ($res as $r) {
			if ($session === false || abs($session['dateline'] - $row['logintime']) > abs($r['dateline'] - $row['logintime'])) {
				$session = $r;
			}
		}
		if ($session !== false) {
			$row['session'] = $session['data'];
			if (empty($row['currentuser'])) {
				$row['username'] = $session['username'];
			}
		}
	}

	private static function showMachine($uuid)
	{
		$client = Database::queryFirst('SELECT machineuuid, locationid, macaddr, clientip, firstseen, lastseen, logintime, lastboot, state,
			mbram, live_tmpsize, live_tmpfree, live_id45size, live_id45free, live_swapsize, live_swapfree,
			live_memsize, live_memfree, live_cpuload, live_cputemp,
			Length(position) AS hasroomplan, kvmstate, cpumodel, id44mb, id45mb, data, hostname, currentuser, currentsession, notes
			FROM machine WHERE machineuuid = :uuid',
			array('uuid' => $uuid));
		if ($client === false) {
			Message::addError('unknown-machine', $uuid);
			return;
		}
		Render::setTitle(empty($client['hostname']) ? $client['clientip'] : $client['hostname']);
		$locations = [];
		if ($client['locationid'] > 0 && Module::isAvailable('locations')) {
			if (!Location::isLeaf($client['locationid'])) {
				$client['hasroomplan'] = false;
			}
			$locations = Location::getLocationRootChain($client['locationid']);
		}
		User::assertPermission('machine.view-details', (int)$client['locationid']);
		// Hack: Get raw collected data
		if (Request::get('raw', false)) {
			Header('Content-Type: application/json');
			die($client['data']);
		}
		// Parse data
		$hdds = array();
		if ($client['data'][0] === '{') {
			$json = json_decode($client['data'], true);
			if (is_array($json)) {
				$client += self::parseJson($uuid, $json);
				$hdds['hdds'] = self::queryHddData($uuid);
			}
		} else {
			self::parseLegacy($client, $hdds);
		}
		unset($client['data']);
		// Get rid of configured speed, if equal to maximum speed
		foreach ($client['ram'] as &$item) {
			if (isset($item['Configured Memory Speed']) && $item['Configured Memory Speed'] === $item['Speed']) {
				unset($item['Configured Memory Speed']);
			}
		}
		unset($item);
		// PCI
		// 1) get passthrough groups
		$passthroughTypes = [];
		if (!empty($locations)) {
			$hw = new HardwareQuery(HardwareInfo::PCI_DEVICE, $uuid, true);
			// TODO: Get list of enabled pass through groups for this client's location
			$hw->addForeignJoin(true, '@PASSTHROUGH', 'passthrough_group_x_location', 'groupid',
				'locationid', $locations);
			$hw->addGlobalColumn('vendor');
			$hw->addGlobalColumn('device');
			$hw->addGlobalColumn('rev');
			$res = $hw->query();
			foreach ($res as $row) {
				$devId = $row['vendor'] . ':' . $row['device'] . ':' . $row['rev'];
				if (!isset($passthroughTypes[$devId])) {
					$passthroughTypes[$devId] = [];
				}
				$passthroughTypes[$devId][$row['@PASSTHROUGH']] = $row['@PASSTHROUGH'];
			}
		}
		// 2) Sort and mangle list
		$client['lspci1'] = $client['lspci2'] = [];
		foreach ($client['lspci'] as $item) {
			$devId = $item['vendor'] . ':' . $item['device'];
			$item['vendor_s'] = PciId::getPciId(PciId::VENDOR, $item['vendor']);
			$item['device_s'] = PciId::getPciId(PciId::DEVICE, $item['vendor'] . $item['device']);
			if ($item['vendor_s'] === false) {
				$pciLookup[$item['vendor']] = true;
			}
			if ($item['device_s'] === false) {
				$pciLookup[$devId] = true;
			}
			// Passthrough enabled?
			if (isset($passthroughTypes[$devId . ':' . ($item['rev'] ?? '')])) {
				$item['pt'] = implode(', ', $passthroughTypes[$devId . ':' . $item['rev']]);
			}
			$class = $item['class'];
			if ($class === '0300' || $class === '0200' || $class === '0403' || !empty($item['pt'])) {
				$dst =& $client['lspci1'];
			} else {
				$dst =& $client['lspci2'];
			}
			if (!isset($dst[$class])) {
				$dst[$class] = [
					'class' => $class,
					'class_s' => PciId::getPciId(PciId::DEVCLASS, $class, true),
					'entries' => [],
				];
			}
			$dst[$class]['entries'][] = $item;
		}
		unset($dst, $client['lspci']);
		ksort($client['lspci1']);
		ksort($client['lspci2']);
		$client['lspci1'] = array_values($client['lspci1']);
		$client['lspci2'] = array_values($client['lspci2']);
		// Runmode
		if (Module::isAvailable('runmode')) {
			$data = RunMode::getRunMode($uuid, RunMode::DATA_STRINGS);
			if ($data !== false) {
				$client += $data;
			}
		}
		// Rebootcontrol
		if (Module::get('rebootcontrol') !== false) {
			$client['canReboot'] = (User::hasPermission('.rebootcontrol.action.reboot', (int)$client['locationid']));
			$client['canShutdown'] = (User::hasPermission('.rebootcontrol.action.shutdown', (int)$client['locationid']));
			$client['canWol'] = (User::hasPermission('.rebootcontrol.action.wol', (int)$client['locationid']));
			$client['canExec'] = (User::hasPermission('.rebootcontrol.action.exec', (int)$client['locationid']));
			$client['rebootcontrol'] = $client['canReboot'] || $client['canShutdown'] || $client['canWol'] || $client['canExec'];
		}
		// Baseconfig
		if (Module::get('baseconfig') !== false
			&& User::hasPermission('.baseconfig.view', (int)$client['locationid'])) {
			$cvs = Database::queryFirst('SELECT Count(*) AS cnt FROM setting_machine WHERE machineuuid = :uuid', ['uuid' => $uuid]);
			$client['overriddenVars'] = is_array($cvs) ? $cvs['cnt'] : 0;
			$client['hasBaseconfig'] = true;
		}
		if (!isset($client['isclient'])) {
			$client['isclient'] = true;
		}
		// Mangle fields
		$NOW = time();
		if (!$client['isclient']) {
			if ($client['state'] === 'IDLE') {
				$client['state'] = 'OCCUPIED';
			}
		} else {
			if ($client['state'] === 'OCCUPIED') {
				self::fillSessionInfo($client);
			}
		}
		$client['state_' . $client['state']] = true;
		$client['firstseen_s'] = date('d.m.Y H:i', $client['firstseen']);
		$client['lastseen_s'] = date('d.m.Y H:i', $client['lastseen']);
		$client['logintime_s'] = date('d.m.Y H:i', $client['logintime']);
		if ($client['lastboot'] == 0) {
			$client['lastboot_s'] = '-';
		} else {
			$uptime = $NOW - $client['lastboot'];
			$client['lastboot_s'] = date('d.m.Y H:i', $client['lastboot']);
			if ($client['state'] === 'IDLE' || $client['state'] === 'OCCUPIED') {
				$client['lastboot_s'] .= ' (Up ' . floor($uptime / 86400) . 'd ' . gmdate('H:i', $uptime) . ')';
			}
		}
		$client['gbram'] = round(ceil($client['mbram'] / 512) / 2, 1);
		$client['gbtmp'] = round($client['id44mb'] / 1024);
		$client['gbid45'] = round($client['id45mb'] / 1024);
		foreach (['tmp', 'id45', 'swap', 'mem'] as $item) {
			if ($client['live_' . $item . 'size'] == 0)
				continue;
			$client['live_' . $item . 'percent'] = round(($client['live_' . $item . 'free'] / $client['live_' . $item . 'size']) * 100, 2);
			$client['live_' . $item . 'free_s'] = Util::readableFileSize($client['live_' . $item . 'free'], -1, 2);
		}
		if ($client['live_cpuload'] <= 100) {
			$client['live_cpuload_s'] = $client['live_cpuload'] . "\xe2\x80\x89%";
			$client['live_cpuidle'] = 100 - $client['live_cpuload'];
		}
		$client['live_cputemppercent'] = max(0, min(100, 110 - $client['live_cputemp']));
		$client['ramclass'] = StatisticsStyling::ramColorClass($client['mbram']);
		$client['kvmclass'] = StatisticsStyling::kvmColorClass($client['kvmstate']);
		$client['hddclass'] = StatisticsStyling::hddColorClass($client['gbtmp']);
		// Format HDD data to strings
		foreach ($hdds['hdds'] as &$hdd) {
			$hdd['smart_status_failed'] = !($client['smart_status//passed'] ?? 1);
			self::mangleHdd($hdd);
		}
		// BIOS update check
		if (!empty($client['bios']['BIOS Revision']) || !empty($client['bios']['Release Date'])) {
			if (preg_match('#^(\d{1,2})/(\d{1,2})/(\d{4})#', $client['bios']['Release Date'], $out)) {
				$client['bios']['Release Date'] = $out[2] . '.' . $out[1] . '.' . $out[3];
			}
			$mainboard = ($client['mainboard']['Manufacturer'] ?? '') . '##' . ($client['mainboard']['Product Name'] ?? '');
			$system = ($client['system']['Manufacturer'] ?? '') . '##' . ($client['system']['Product Name'] ?? '');
			$ret = self::checkBios($mainboard, $system, $client['bios']['Release Date'], $client['bios']['BIOS Revision']);
			if ($ret === false) { // Not loaded, use AJAX
				$params = [
					'mainboard' => $mainboard,
					'system' => $system,
					'date' => $client['bios']['Release Date'],
					'revision' => $client['bios']['BIOS Revision'],
				];
				$client['biosurl'] = '?do=statistics&action=bios&' . http_build_query($params);
			} elseif (!isset($ret['status']) || $ret['status'] !== 0) {
				$client['bioshtml'] = Render::parse('machine-bios-update', $ret);
			}
		}
		// Last booted system. The boot-system entry is created when the client fetches the config, so
		// early on, *before* we get the ~poweron event. But in the ~poweron event, the client provides the
		// kernel uptime, which is subtracted from what we write to lastboot, so it is actually *before*
		// boot-system.
		$os = Database::queryFirst("SELECT `data` AS `system`, `dateline`
			FROM statistic
			WHERE (dateline >= :lastboot) AND typeid = 'boot-system' AND machineuuid = :uuid
			ORDER BY dateline ASC LIMIT 1",
		['lastboot' => $client['lastboot'], 'uuid' => $uuid]);
		if ($os !== false) {
			$client['minilinux'] = $os['system'];
			$graphical = Database::queryFirst("SELECT `dateline`
					FROM statistic
					WHERE (dateline >= :lastboot) AND typeid = 'graphical-startup' AND machineuuid = :uuid
					ORDER BY dateline ASC LIMIT 1",
				['lastboot' => $client['lastboot'], 'uuid' => $uuid]);
			if ($graphical !== false) {
				$boottime = $graphical['dateline'] - $client['lastboot'];
				if ($boottime < 400) { // Sanity-check
					$client['boottime_s'] = gmdate('i:s', $boottime);
				}
			}
		}
		// Get locations
		if (Module::isAvailable('locations')) {
			$locs = Location::getLocationsAssoc();
			$next = (int)$client['locationid'];
			$output = array();
			while (isset($locs[$next])) {
				array_unshift($output, $locs[$next]);
				$next = $locs[$next]['parentlocationid'];
			}
			$client['locations'] = $output;
		}
		// Screens TODO Move everything else to hw table instead of blob parsing above
		// `devicetype`, `devicename`, `subid`, `machineuuid`
		$res = Database::simpleQuery("SELECT m.hwid, h.hwname, m.devpath AS connector, m.disconnecttime,"
			. " p.value AS resolution, q.prop AS projector FROM machine_x_hw m"
			. " INNER JOIN statistic_hw h ON (m.hwid = h.hwid AND h.hwtype = :screen)"
			. " LEFT JOIN machine_x_hw_prop p ON (m.machinehwid = p.machinehwid AND p.prop = 'resolution')"
			. " LEFT JOIN statistic_hw_prop q ON (m.hwid = q.hwid AND q.prop = 'projector')"
			. " WHERE m.machineuuid = :uuid",
			array('screen' => HardwareInfo::SCREEN, 'uuid' => $uuid));
		$client['screens'] = array();
		$ports = array();
		foreach ($res as $row) {
			if ($row['disconnecttime'] != 0)
				continue;
			$ports[] = $row['connector'];
			$client['screens'][] = $row;
		}
		array_multisort($ports, SORT_ASC, $client['screens']);
		Permission::addGlobalTags($client['perms'], null, ['hardware.projectors.edit', 'hardware.projectors.view']);
		// Throw output at user
		Render::addTemplate('machine-main', $client);
		if (!empty($pciLookup)) {
			Render::addTemplate('js-pciquery',
				['missing_ids' => json_encode(array_keys($pciLookup))]);
		}
		// Sessions
		$NOW = time();
		$cutoff = $NOW - 86400 * 7;
		//if ($cutoff < $client['firstseen']) $cutoff = $client['firstseen'];
		$scale = 100 / ($NOW - $cutoff);
		$res = Database::simpleQuery('SELECT dateline, typeid, data FROM statistic'
			. " WHERE dateline > :cutoff AND typeid IN (:sessionLength, :offlineLength) AND machineuuid = :uuid ORDER BY dateline ASC", array(
			'cutoff' => $cutoff - 86400 * 14,
			'uuid' => $uuid,
			'sessionLength' => Statistics::SESSION_LENGTH,
			'offlineLength' => Statistics::OFFLINE_LENGTH,
		));
		$spans['rows'] = array();
		$spans['graph'] = '';
		$last = false;
		$first = true;
		foreach ($res as $row) {
			if (!$client['isclient'] && $row['typeid'] === Statistics::SESSION_LENGTH)
				continue; // Don't differentiate between session and idle for non-clients
			if ($first && $row['dateline'] > $cutoff && $client['lastboot'] > $cutoff) {
				// Special case: offline before
				$spans['graph'] .= '<div style="background:#444;left:0;width:' . round((min($row['dateline'], $client['lastboot']) - $cutoff) * $scale, 2) . '%">&nbsp;</div>';
			}
			$first = false;
			if ($row['dateline'] + $row['data'] < $cutoff || $row['data'] > 864000) {
				continue;
			}
			if ($last !== false && abs($last['dateline'] - $row['dateline']) < 30
				&& abs($last['data'] - $row['data']) < 30
			) {
				continue;
			}
			if ($last !== false && $last['dateline'] + $last['data'] > $row['dateline']) {
				$point = $last['dateline'] + $last['data'];
				$row['data'] -= ($point - $row['dateline']);
				$row['dateline'] = $point;
			}
			if ($row['dateline'] < $cutoff) {
				$row['data'] -= ($cutoff - $row['dateline']);
				$row['dateline'] = $cutoff;
			}
			$row['from'] = Util::prettyTime($row['dateline']);
			$row['duration'] = floor($row['data'] / 86400) . 'd ' . gmdate('H:i', $row['data']);
			if ($row['typeid'] === Statistics::OFFLINE_LENGTH) {
				$row['glyph'] = 'off';
				$color = '#444';
			} elseif ($row['typeid'] === Statistics::SUSPEND_LENGTH) {
				$row['glyph'] = 'pause';
				$color = '#686';
			} else {
				$row['glyph'] = 'user';
				$color = '#e77';
			}
			$spans['graph'] .= '<div style="background:' . $color . ';left:' . round(($row['dateline'] - $cutoff) * $scale, 2) . '%;width:' . round(($row['data']) * $scale, 2) . '%">&nbsp;</div>';
			if ($client['isclient']) {
				$spans['rows'][] = $row;
			}
			$last = $row;
		}
		if ($first && $client['lastboot'] > $cutoff) {
			// Special case: offline before
			$spans['graph'] .= '<div style="background:#444;left:0;width:' . round(($client['lastboot'] - $cutoff) * $scale, 2) . '%">&nbsp;</div>';
		} elseif ($first) {
			// Not seen in last two weeks
			$spans['graph'] .= '<div style="background:#444;left:0;width:100%">&nbsp;</div>';
		}
		if ($client['state'] === 'OCCUPIED') {
			$spans['graph'] .= '<div style="background:#e99;left:' . round(($client['logintime'] - $cutoff) * $scale, 2) . '%;width:' . round(($NOW - $client['logintime'] + 900) * $scale, 2) . '%">&nbsp;</div>';
			$spans['rows'][] = [
				'from' => Util::prettyTime($client['logintime']),
				'duration' => '-',
				'glyph' => 'user',
			];
		} elseif ($client['state'] === 'OFFLINE') {
			$spans['graph'] .= '<div style="background:#444;left:' . round(($client['lastseen'] - $cutoff) * $scale, 2) . '%;width:' . round(($NOW - $client['lastseen'] + 900) * $scale, 2) . '%">&nbsp;</div>';
			$spans['rows'][] = [
				'from' => Util::prettyTime($client['lastseen']),
				'duration' => '-',
				'glyph' => 'off',
			];
		} elseif ($client['state'] === 'STANDBY') {
			$spans['graph'] .= '<div style="background:#686;left:' . round(($client['lastseen'] - $cutoff) * $scale, 2) . '%;width:' . round(($NOW - $client['lastseen'] + 900) * $scale, 2) . '%">&nbsp;</div>';
			$spans['rows'][] = [
				'from' => Util::prettyTime($client['lastseen']),
				'duration' => '-',
				'glyph' => 'pause',
			];
		}
		$t = explode('-', date('Y-n-j-G', $cutoff));
		if ($t[3] >= 8 && $t[3] <= 22) {
			$start = mktime(22, 0, 0, $t[1], $t[2], $t[0]);
		} else {
			$start = mktime(22, 0, 0, $t[1], $t[2] - 1, $t[0]);
		}
		for ($i = $start; $i < $NOW; $i += 86400) {
			$spans['graph'] .= '<div style="background:rgba(0,0,90,.2);left:' . round(($i - $cutoff) * $scale, 2) . '%;width:' . round((10 * 3600) * $scale, 2) . '%">&nbsp;</div>';
		}
		if (count($spans['rows']) > 10) {
			$spans['hasrows2'] = true;
			$spans['rows2'] = array_slice($spans['rows'], ceil(count($spans['rows']) / 2));
			$spans['rows'] = array_slice($spans['rows'], 0, ceil(count($spans['rows']) / 2));
		}
		$spans['isclient'] = $client['isclient'];
		Render::addTemplate('machine-usage', $spans);
		// Any hdds?
		if (!empty($hdds['hdds'])) {
			Render::addTemplate('machine-hdds', $hdds);
		}
		// Client log
		if (Module::get('syslog') !== false) {
			$lres = Database::simpleQuery('SELECT logid, dateline, logtypeid, clientip, description, extra FROM clientlog'
				. ' WHERE machineuuid = :uuid ORDER BY logid DESC LIMIT 25', array('uuid' => $client['machineuuid']));
			$count = 0;
			$log = array();
			foreach ($lres as $row) {
				if (substr($row['description'], -5) === 'on :0' && strpos($row['description'], 'root logged') === false) {
					continue;
				}
				$row['date'] = Util::prettyTime($row['dateline']);
				$row['icon'] = self::eventToIconName($row['logtypeid']);
				$log[] = $row;
				if (++$count === 10) {
					break;
				}
			}
			Render::addTemplate('syslog', array(
				'machineuuid' => $client['machineuuid'],
				'list' => $log,
			));
		}
		// Notes
		if (User::hasPermission('machine.note.*', (int)$client['locationid'])) {
			Permission::addGlobalTags($client['perms'], (int)$client['locationid'], ['machine.note.edit']);
			Render::addTemplate('machine-notes', $client);
		}
	}

	private static function parseLegacy(array &$client, array &$hdds)
	{
		// Parse the giant blob of data
		if (strpos($client['data'], "\r") !== false) {
			$client['data'] = str_replace("\r", "\n", $client['data']);
		}
		if (preg_match_all('/##### ([^#]+) #+$(.*?)^#####/ims', $client['data'] . '########', $out, PREG_SET_ORDER)) {
			foreach ($out as $section) {
				if ($section[1] === 'CPU') {
					HardwareParserLegacy::parseCpu($client, $section[2]);
				}
				if ($section[1] === 'dmidecode') {
					HardwareParserLegacy::parseDmiDecode($client, $section[2]);
				}
				if ($section[1] === 'Partition tables') {
					HardwareParserLegacy::parseHdd($hdds, $section[2]);
				}
				if ($section[1] === 'PCI ID') {
					$client['lspci'] = HardwareParserLegacy::parsePci($section[2]);
				}
				if (isset($hdds['hdds']) && $section[1] === 'smartctl') {
					// This currently requires that the partition table section comes first...
					HardwareParserLegacy::parseSmartctl($hdds['hdds'], $section[2]);
				}
			}
		}
	}

	private static function parseJson(string $uuid, array $json): array
	{
		$return = [
			'lspci' => $json['lspci'] ?? [],
			'ram' => array_map(function($item) {
				return HardwareParser::prepareDmiProperties($item);
			}, HardwareParser::getDmiHandles($json, 17)),
		];
		foreach ($return['ram'] as $ram) {
			if (!empty($ram['Form Factor']) && !empty($ram['Type'])) {
				$return['ramtype'] = $ram['Type'] . '-' . $ram['Form Factor'];
				break;
			}
		}
		$need = [
			'bios' => 0,
			'system' => 1,
			'mainboard' => 2,
		];
		foreach ($need as $name => $id) {
			$return[$name] = HardwareParser::prepareDmiProperties(
				HardwareParser::getDmiHandles($json, $id)[0] ?? []);
		}
		$q = new HardwareQuery(HardwareInfo::MAINBOARD, $uuid);
		$q->addGlobalColumn('Memory Maximum Capacity');
		$q->addGlobalColumn('Memory Slot Count');
		$q->addLocalColumn('cpu-sockets');
		$q->addLocalColumn('cpu-cores');
		$q->addLocalColumn('cpu-threads');
		$res = $q->query()->fetch();
		if (is_array($res)) {
			$return += $res;
		}
		return $return;
	}

	private static function queryHddData(string $uuid): array
	{
		$hdds = [];
		$ret = Database::simpleQuery("SELECT mp.`machinehwid`, mp.`prop`, mp.`value`, mp.`numeric`
				FROM machine_x_hw_prop mp
				INNER JOIN machine_x_hw mxhw ON (mp.machinehwid = mxhw.machinehwid AND mxhw.machineuuid = :uuid AND mxhw.disconnecttime = 0)
				INNER JOIN statistic_hw sh ON (mxhw.hwid = sh.hwid AND sh.hwtype = :type)
				UNION SELECT mxhw.`machinehwid`, hwp.`prop`, hwp.`value`, hwp.`numeric`
				FROM statistic_hw_prop hwp
				INNER JOIN machine_x_hw mxhw ON (hwp.hwid = mxhw.hwid AND mxhw.machineuuid = :uuid AND mxhw.disconnecttime = 0)
				INNER JOIN statistic_hw sh ON (mxhw.hwid = sh.hwid AND sh.hwtype = :type)
				",
			['type' => HardwareInfo::HDD, 'uuid' => $uuid]);
		foreach ($ret as $row) {
			if (!isset($hdds[$row['machinehwid']])) {
				$hdds[$row['machinehwid']] = ['partitions' => []];
			}
			$hdd =& $hdds[$row['machinehwid']];
			if (preg_match('/^(attr_[0-9]+)_(.*)$/', $row['prop'], $out)) {
				// SMART attributes
				if (!isset($hdd[$out[1]])) {
					$hdd[$out[1]] = [];
				}
				$hdd[$out[1]][$out[2]] = $row['numeric'] ?? $row['value'];
			} elseif (preg_match('/^part_([0-9]+)_(.*)$/', $row['prop'], $out)) {
				// Partitions
				if (!isset($hdd['partitions'][$out[1]])) {
					$hdd['partitions'][$out[1]] = ['id' => 'dev-' . count($hdds) . '-' . $out[1], 'index' => $out[1] + 1];
				}
				$hdd['partitions'][$out[1]][$out[2]] = $row['numeric'] ?? $row['value'];
			} else {
				$hdd[$row['prop']] = $row['numeric'] ?? $row['value'];
			}
		}
		$result = [];
		foreach ($hdds as $k => &$hdd) {
			if (substr($hdd['dev'] ?? '/dev/sr', 0, 7) === '/dev/sr')
				continue;
			$hdd['devid'] = 'k' . $k;
			$hdd['partitions'] = array_values($hdd['partitions']);
			$result[] = $hdd;
		}
		return $result;
	}

	private static function mangleHdd(array &$hdd)
	{
		static $hddidx = 0;
		$hdd['hddidx'] = $hddidx++;
		$hours = $hdd['power_on_time//hours'] ?? $hdd['attr_9']['raw'] ?? $hdd['power_on_hours']
			?? $hdd['power_on_time']['hours'] ?? null;
		if ($hours !== null) {
			$hdd['PowerOnTime'] = '';
			$val = (int)str_replace('.', '', $hours);
			if ($val > 8760) {
				$hdd['PowerOnTime'] .= floor($val / 8760) . 'Y, ';
				$val %= 8760;
			}
			if ($val > 720) {
				$hdd['PowerOnTime'] .= floor($val / 720) . 'M, ';
				$val %= 720;
			}
			if ($val > 24) {
				$hdd['PowerOnTime'] .= floor($val / 24) . 'd, ';
				$val %= 24;
			}
			$hdd['PowerOnTime'] .= $val . 'h';
		}
		// Sort by start for building pie-chart
		$xx = array_column($hdd['partitions'], 'start');
		array_multisort($xx, SORT_ASC, SORT_NUMERIC,
			$hdd['partitions']);
		$used = 0;
		$json = [];
		$lastEnd = 0;
		$minDisplaySize = $hdd['size'] / 150;
		$i = 0;
		foreach ($hdd['partitions'] as &$part) {
			$dist = $part['start'] - $lastEnd;
			if ($dist > $minDisplaySize) {
				$json[] = ['value' => $dist, 'color' => '#aaa'];
				$i++;
			}
			if ($part['size'] > $minDisplaySize) {
				$json[] = ['value' => $part['size'], 'color' => self::typeToColor($part)];
				$part['idx'] = $i++;
			}
			$part['size_s'] = Util::readableFileSize($part['size']);
			$used += $part['size'];
			$lastEnd = $part['start'] + $part['size'];
			if (!isset($part['name'])) {
				$part['name'] = self::partTypeToName($part['slxtype'] ?? $part['type']);
			}
		}
		$dist = $hdd['size'] - $lastEnd;
		if ($dist > $minDisplaySize) {
			$json[] = ['value' => $dist, 'color' => '#aaa'];
		}
		$hdd['json'] = json_encode($json);
		$hdd['size_s'] = Util::readableFileSize($hdd['size']);
		if ($hdd['size'] - $used > 1000000000) {
			$hdd['unused_s'] = Util::readableFileSize($hdd['size'] - $used);
		}
		// Finally sort by index for table display
		array_multisort(array_column($hdd['partitions'], 'index'), SORT_ASC,
			$hdd['partitions']);
	}

	private static function typeToColor(array $part): string
	{
		switch ($part['slxtype'] ?? $part['type']) {
		case 44:
			return '#5c1';
		case 45:
			return '#0d7';
		case 82:
			return '#48f';
		}
		return '#e55';
	}

	private static function eventToIconName($event): string
	{
		switch ($event) {
		case 'session-open':
			return 'glyphicon-log-in';
		case 'session-close':
			return 'glyphicon-log-out';
		case 'partition-swap':
			return 'glyphicon-info-sign';
		case 'partition-temp':
		case 'smartctl-realloc':
			return 'glyphicon-exclamation-sign';
		default:
			return 'glyphicon-minus';
		}
	}

	const BIOS_CACHE = '/tmp/bwlp-bios.json';

	public static function ajaxCheckBios()
	{
		$mainboard = Request::any('mainboard', false, 'string');
		$system = Request::any('system', false, 'string');
		$date = Request::any('date', false, 'string');
		$revision = Request::any('revision', false, 'string');
		$reply = self::checkBios($mainboard, $system, $date, $revision);
		if ($reply === false) {
			$data = Download::asString(CONFIG_BIOS_URL, 3, $err);
			if ($err < 200 || $err >= 300) {
				$reply = ['error' => 'HTTP: ' . $err];
			} else {
				file_put_contents(self::BIOS_CACHE, $data);
				$data = json_decode($data, true);
				$reply = self::checkBios($mainboard, $system, $date, $revision, $data);
			}
		}
		if ($reply === false) {
			$reply = ['error' => 'Internal Error'];
		}
		if (isset($reply['status']) && $reply['status'] === 0)
			exit; // Show nothing, 0 means OK
		die(Render::parse('machine-bios-update', $reply));
	}

	private static function checkBios($mainboard, $system, $date, $revision, $json = null)
	{
		if ($json === null) {
			if (!file_exists(self::BIOS_CACHE) || filemtime(self::BIOS_CACHE) + 3600 < time())
				return false;
			$json = json_decode(file_get_contents(self::BIOS_CACHE), true);
		}
		if (!is_array($json) || !isset($json['system']))
			return ['error' => 'Malformed JSON, no system key'];
		if (isset($json['system'][$system]) && isset($json['system'][$system]['fixes']) && isset($json['system'][$system]['match'])) {
			$match =& $json['system'][$system];
		} elseif (isset($json['mainboard'][$mainboard]) && isset($json['mainboard'][$mainboard]['fixes']) && isset($json['mainboard'][$mainboard]['match'])) {
			$match =& $json['mainboard'][$mainboard];
		} else {
			return ['status' => 0];
		}
		$key = $match['match'];
		if ($key === 'revision') {
			$cmp = function ($item) { $s = explode('.', $item); return $s[0] * 0x10000 + $s[1]; };
			$reference = $cmp($revision);
		} elseif ($key === 'date') {
			$cmp = function ($item) { $s = explode('.', $item); return $s[2] * 10000 + $s[1] * 100 + $s[0]; };
			$reference = $cmp($date);
		} else {
			return ['error' => 'Invalid comparison key: ' . $key];
		}
		$retval = ['fixes' => []];
		$level = 0;
		foreach ($match['fixes'] as $fix) {
			if ($cmp($fix[$key]) > $reference) {
				class_exists('Dictionary'); // Trigger setup of lang stuff
				$lang = isset($fix['text'][LANG]) ? LANG : 'en';
				$fix['text'] = $fix['text'][$lang];
				$retval['fixes'][] = $fix;
				$level = max($level, $fix['level']);
			}
		}
		$retval['url'] = $match['url'];
		$retval['status'] = $level;
		if ($level > 5) {
			$retval['class'] = 'danger';
		} elseif ($level > 3) {
			$retval['class'] = 'warning';
		} else {
			$retval['class'] = 'info';
		}
		return $retval;
	}

	/**
	 * @param string $type MBR-type or GPT UUID
	 * @return string Name of partition type if known, otherwise, $type is returned
	 */
	private static function partTypeToName(string $type): string
	{
		switch ($type) {
		case '44':
		case '45':
			return 'OpenSLX-ID' . $type;
		case '82':
			return 'Linux Swap';
		case '83':
			return 'Linux';
		case '7':
			return 'NTFS/Windows';
		case 'ef':
			return 'EFI';
		}
		return HardwareInfo::GPT[$type] ?? $type;
	}

}