<?php
class Page_SystemStatus extends Page
{
const TM_UPDATE_UUID = '345-45763457-24356-234324556';
protected function doPreprocess()
{
User::load();
if (!User::isLoggedIn()) {
Message::addError('main.no-permission');
Util::redirect('?do=Main');
}
$action = Request::post('action', false, 'string');
$aptAction = null;
switch ($action) {
case 'reboot':
User::assertPermission("serverreboot");
$task = Taskmanager::submit('Reboot');
if (Taskmanager::isTask($task)) {
Util::redirect('?do=systemstatus&taskid=' . $task['id']);
}
break;
case 'service-start':
case 'service-restart':
$this->handleServiceAction(substr($action, 8));
break;
case 'apt-update':
User::assertPermission('apt.update');
$aptAction = 'UPDATE';
break;
case 'apt-upgrade':
User::assertPermission('apt.upgrade');
$aptAction = 'UPGRADE';
break;
case 'apt-full-upgrade':
User::assertPermission('apt.upgrade');
$aptAction = 'FULL_UPGRADE';
break;
case 'apt-autoremove':
User::assertPermission('apt.autoremove');
$aptAction = 'AUTOREMOVE';
break;
case 'apt-fix':
User::assertPermission('apt.fix');
$aptAction = 'FIX';
break;
default:
}
if ($aptAction !== null) {
if (!Taskmanager::isRunning(Taskmanager::status(self::TM_UPDATE_UUID))) {
$task = Taskmanager::submit('AptUpgrade', ['mode' => $aptAction, 'id' => self::TM_UPDATE_UUID]);
Taskmanager::release($task);
}
Util::redirect('?do=systemstatus#id-ListUpgradable_pane');
}
if (Request::isPost()) {
Util::redirect('?do=systemstatus');
}
User::assertPermission('*');
}
private function handleServiceAction(string $action)
{
$service = Request::post('service', Request::REQUIRED, 'string');
$task = Taskmanager::submit('Systemctl', ['operation' => $action, 'service' => $service]);
$extra = '';
$cmp = preg_replace('/(@.*|\.service)$/', '', $service);
User::assertPermission("restart.$cmp");
if ($cmp === 'dmsd') {
$extra = '#id-DmsdLog_pane';
} elseif ($cmp === 'ldadp') {
$extra = '#id-LdadpLog_pane';
} elseif ($cmp === 'dnbd3-server') {
$extra = '#id-Dnbd3Log_pane';
}
Util::redirect('?do=systemstatus&taskid=' . $task['id'] . '&taskname=' . urlencode($service) . $extra);
}
protected function doRender()
{
$data = array();
$data['taskid'] = Request::get('taskid', '', 'string');
$data['taskname'] = Request::get('taskname', 'Reboot', 'string');
$tabs = ['DmsdLog', 'Netstat', 'PsList', 'LdadpLog', 'LighttpdLog', 'Dnbd3Log', 'ListUpgradable'];
$data['tabs'] = array();
// Dictionary::translate('tab_DmsdLog') Dictionary::translate('tab_LdadpLog') Dictionary::translate('tab_Netstat')
// Dictionary::translate('tab_LighttpdLog') Dictionary::translate('tab_PsList') Dictionary::translate('tab_Dnbd3Log')
// Dictionary::translate('tab_ListUpgradable')
foreach ($tabs as $tab) {
$data['tabs'][] = array(
'type' => $tab,
'name' => Dictionary::translate('tab_' . $tab),
'enabled' => User::hasPermission('tab.' . $tab),
'important' => $tab === 'ListUpgradable'
&& (SystemStatus::getAptLastDbUpdateTime() + 864000 < time() || SystemStatus::getUpgradableSecurityCount() > 0),
);
}
Permission::addGlobalTags($data['perms'], null, ['serverreboot']);
$pkgs = SystemStatus::getPackagesRequiringReboot();
if (!empty($pkgs)) {
$data['packages'] = implode(', ', $pkgs);
}
Render::addTemplate('_page', $data);
}
protected function doAjax()
{
User::load();
if (!User::isLoggedIn())
return;
$action = 'ajax' . Request::any('action');
if (method_exists($this, $action)) {
$this->$action();
Message::renderList();
} else {
// get_class() !== get_class($this)
echo "Action $action not known in " . get_class($this);
}
}
protected function ajaxListUpgradable()
{
User::assertPermission("tab.listupgradable");
if (User::hasPermission('apt.update')
&& Taskmanager::isRunning(Taskmanager::status(self::TM_UPDATE_UUID))) {
echo Render::parse('sys-update-update', [
'taskid' => self::TM_UPDATE_UUID,
'rnd' => mt_rand(),
]);
return;
}
$task = SystemStatus::getUpgradableTask();
// Estimate last time package list was updated
$lastPackageInstalled = SystemStatus::getDpkgLastPackageChanges();
$lastListDownloadAttempt = SystemStatus::getAptLastUpdateAttemptTime();
$updateDbTime = SystemStatus::getAptLastDbUpdateTime();
$perms = [];
Permission::addGlobalTags($perms, 0, ['apt.update', 'apt.upgrade', 'apt.autoremove', 'apt.fix']);
if ($task !== false) {
$task = Taskmanager::waitComplete($task, 30000);
if (Taskmanager::isFailed($task) || !Taskmanager::isFinished($task)) {
Taskmanager::addErrorMessage($task);
return;
}
if (!Taskmanager::isFailed($task) && empty($task['data']['packages'])) {
$task['data']['error'] = '';
}
} else {
$task['data']['error'] = 'ECONNREFUSED';
}
foreach ($task['data']['packages'] as &$pkg) {
if (substr($pkg['source'], -9) === '-security') {
$pkg['row_class'] = 'bg-danger';
} else {
$pkg['row_class'] = '';
}
}
unset($pkg);
echo Render::parse('sys-update-main', [
'task' => $task['data'],
'lastDownload' => Util::prettyTime($lastListDownloadAttempt),
'lastChanged' => Util::prettyTime($updateDbTime),
'lastInstalled' => Util::prettyTime($lastPackageInstalled),
'perm' => $perms,
'list_old' => $lastListDownloadAttempt + 86400 < time(),
'needReboot' => implode(', ', SystemStatus::getPackagesRequiringReboot()),
]);
}
protected function ajaxDiskStat()
{
User::assertPermission("show.overview.diskstat");
if (!SystemStatus::diskStat($systemUsage, $storeUsage, $currentSource, $wantedSource))
return;
$data = ['system' => $this->convertDiskStat($systemUsage, 3000)];
if ($wantedSource === false) { // Not configured yet, nothing to display
$data['notConfigured'] = true;
} elseif ($wantedSource === $currentSource) { // Fine and dandy
$data['store'] = $this->convertDiskStat($storeUsage, 250000);
} elseif ($currentSource === false) { // No current source, nothing mounted
$data['storeMissing'] = true;
} else { // Something else mounted
$data['wrongStore'] = $currentSource;
}
echo Render::parse('diskstat', $data);
}
protected function ajaxAddressList()
{
User::assertPermission("show.overview.addresses");
$task = Taskmanager::submit('LocalAddressesList');
if ($task === false)
return;
$task = Taskmanager::waitComplete($task, 3000);
if (empty($task['data']['addresses'])) {
Taskmanager::addErrorMessage($task);
return;
}
$sort = array();
$primary = Property::getServerIp();
foreach ($task['data']['addresses'] as &$addr) {
$sort[] = $addr['type'] . $addr['ip'];
if ($addr['ip'] === $primary)
$addr['primary'] = true;
}
array_multisort($sort, SORT_STRING, $task['data']['addresses']);
echo Render::parse('addresses', array(
'addresses' => $task['data']['addresses']
));
}
private function sysInfo(): array
{
$data = array();
$memInfo = file_get_contents('/proc/meminfo');
$stat = file_get_contents('/proc/stat');
preg_match_all('/\b(\w+):\s+(\d+)\s/', $memInfo, $out, PREG_SET_ORDER);
foreach ($out as $e) {
$data[$e[1]] = $e[2];
}
/** @var array{user: numeric, nice: numeric, system: numeric, idle: numeric, iowait: numeric, irq: numeric, softirq: numeric} $out */
if (preg_match('/\bcpu\s+(?<user>\d+)\s+(?<nice>\d+)\s+(?<system>\d+)\s+(?<idle>\d+)\s+(?<iowait>\d+)\s+(?<irq>\d+)\s+(?<softirq>\d+)(\s|$)/', $stat, $out)) {
$data['CpuTotal'] = $out['user'] + $out['nice'] + $out['system'] + $out['idle'] + $out['iowait'] + $out['irq'] + $out['softirq'];
$data['CpuIdle'] = $out['idle'] + $out['iowait'];
$data['CpuSystem'] = $out['irq'] + $out['softirq'];
}
return $data;
}
protected function ajaxSystemInfo()
{
User::assertPermission("show.overview.systeminfo");
$cpuInfo = file_get_contents('/proc/cpuinfo');
$uptime = file_get_contents('/proc/uptime');
$cpuCount = preg_match_all('/\bprocessor\s/', $cpuInfo, $out);
$out = parse_ini_file('/etc/os-release');
$data = array(
'cpuCount' => $cpuCount,
'memTotal' => '???',
'memFree' => '???',
'swapTotal' => '???',
'swapUsed' => '???',
'uptime' => '???',
'kernel' => php_uname('r'),
'distribution' => $out['PRETTY_NAME'] ?? (($out['NAME'] ?? '???') . ' ' . ($out['VERSION'] ?? '???')),
);
if (preg_match('/^(\d+)\D/', $uptime, $out)) {
$data['uptime'] = floor($out[1] / 86400) . ' ' . Dictionary::translate('lang_days') . ', ' . floor(($out[1] % 86400) / 3600) . ' ' . Dictionary::translate('lang_hours');
}
$info = $this->sysInfo();
if (isset($info['MemTotal']) && isset($info['MemFree']) && isset($info['SwapTotal'])) {
$avail = $info['MemAvailable'] ?? ($info['MemFree'] + $info['Buffers'] + $info['Cached']);
$data['memTotal'] = Util::readableFileSize($info['MemTotal'] * 1024);
$data['memFree'] = Util::readableFileSize($avail * 1024);
$data['memPercent'] = 100 - round(($avail / $info['MemTotal']) * 100);
$data['swapTotal'] = Util::readableFileSize($info['SwapTotal'] * 1024);
$data['swapUsed'] = Util::readableFileSize(($info['SwapTotal'] - $info['SwapFree']) * 1024);
$data['swapPercent'] = 100 - round(($info['SwapFree'] / $info['SwapTotal']) * 100);
if ($data['swapTotal'] > 0 && $data['memPercent'] > 75) {
$data['swapWarning'] = ($data['swapPercent'] > 80 || $info['SwapFree'] < 400000);
}
}
if (isset($info['CpuIdle']) && isset($info['CpuSystem']) && isset($info['CpuTotal'])) {
$data['cpuLoad'] = 100 - round(($info['CpuIdle'] / $info['CpuTotal']) * 100);
$data['cpuSystem'] = round(($info['CpuSystem'] / $info['CpuTotal']) * 100);
$data['cpuLoadOk'] = true;
$data['CpuTotal'] = $info['CpuTotal'];
$data['CpuIdle'] = $info['CpuIdle'];
}
echo Render::parse('systeminfo', $data);
}
protected function ajaxSysPoll()
{
User::assertPermission("show.overview.systeminfo");
$info = $this->sysInfo();
$data = array(
'CpuTotal' => $info['CpuTotal'],
'CpuIdle' => $info['CpuIdle'],
'MemPercent' => 100 - round((($info['MemFree'] + $info['Buffers'] + $info['Cached']) / $info['MemTotal']) * 100),
'SwapPercent' => 100 - round(($info['SwapFree'] / $info['SwapTotal']) * 100)
);
Header('Content-Type: application/json; charset=utf-8');
die(json_encode($data));
}
protected function ajaxServices()
{
User::assertPermission("show.overview.services");
$data = array('services' => array());
$tasks = array();
$todo = ['dmsd', 'tftpd-hpa'];
if (Module::get('dnbd3') !== false) {
$todo[] = 'dnbd3-server';
$todo[] = 'dnbd3-master-proxy';
}
foreach ($todo as $svc) {
$tasks[] = array(
'name' => $svc,
'task' => Taskmanager::submit('Systemctl', ['service' => $svc, 'operation' => 'is-active'])
);
}
$ldapIds = $ldadp = false;
if (Module::isAvailable('sysconfig')) {
$ldapIds = ConfigModuleBaseLdap::getActiveModuleIds();
if (!empty($ldapIds)) {
$ldadp = array( // No name - no display
'task' => ConfigModuleBaseLdap::ldadp('check', $ldapIds) // TODO: Proper --check usage
);
$tasks[] =& $ldadp;
}
}
$deadline = time() + 10;
do {
$done = true;
foreach ($tasks as &$task) {
if (!is_string($task['task']) && (Taskmanager::isFailed($task['task']) || Taskmanager::isFinished($task['task'])))
continue;
$task['task'] = Taskmanager::waitComplete($task['task'], 100);
if (!Taskmanager::isFailed($task['task']) && !Taskmanager::isFinished($task['task'])) {
$done = false;
}
}
unset($task);
} while (!$done && time() < $deadline);
foreach ($tasks as $task) {
if (!isset($task['name']))
continue;
$fail = Taskmanager::isFailed($task['task']);
$entry = array(
'name' => $task['name'],
'service' => $task['name'],
'fail' => $fail,
);
if ($fail) {
if (!isset($task['task']['data'])) {
$entry['error'] = 'Taskmanager Error';
} elseif (isset($task['task']['data']['messages'])) {
$entry['error'] = $task['task']['data']['messages'];
}
}
$data['services'][] = $entry;
}
if ($ldadp !== false) {
//error_log(print_r($ldadp, true));
preg_match_all('/^ldadp@(\d+)\.service\s+(\S+)$/m', $ldadp['task']['data']['messages'], $out, PREG_SET_ORDER);
$instances = [];
foreach ($out as $instance) {
$instances[$instance[1]] = $instance[2];
}
foreach ($ldapIds as $id) {
$status = $instances[$id] ?? 'failed';
$fail = ($status !== 'running');
$data['services'][] = [
'name' => 'LDAP/AD Proxy #' . $id,
'service' => 'ldadp@' . $id,
'fail' => $fail,
'error' => $fail ? $status : false,
];
}
}
echo Render::parse('services', $data);
}
protected function ajaxDmsdLog()
{
$this->showJournal('dmsd.service', 'tab.dmsdlog');
}
protected function ajaxDnbd3Log()
{
$this->showJournal('dnbd3-server.service', 'tab.dnbd3log');
}
protected function showJournal($service, $permission)
{
$cmp = preg_replace('/(@.*|\.service)$/', '', $service);
User::assertPermission($permission);
$output = [
'name' => $service,
'service' => $service,
'task' => Taskmanager::submit('Systemctl', ['operation' => 'journal', 'service' => $service]),
'restart_disabled' => User::hasPermission('restart.' . $cmp)
? '' : 'disabled',
];
echo Render::parse('ajax-journal', ['modules' => [$output]]);
}
private function grepLighttpdLog(string $file, int $num): array
{
$fh = @fopen($file, 'r');
if ($fh === false)
return ['Error opening ' . $file];
$ret = [];
fseek($fh, -($num * 2000), SEEK_END);
if (ftell($fh) > 0) {
// Throw away first line, as it's most likely incomplete
fgets($fh, 1000);
}
while (($line = fgets($fh, 1000))) {
if (strpos($line, ':SSL routines:') === false
&& strpos($line, ' SSL: -1 5 104 Connection reset by peer') === false
&& strpos($line, 'GET/HEAD with content-length') === false
&& strpos($line, 'connection closed: write failed on fd ') === false
&& strpos($line, 'unexpected TLS ClientHello on clear port ') === false
&& strpos($line, 'invalid request-line -> sending Status 400 ') === false
&& strpos($line, 'SSL (error): 5 -1: Bad message') === false
&& strpos($line, 'POST-request, but content-length missing') === false) {
$ret[] = $line;
}
}
fclose($fh);
return array_slice($ret, -$num);
}
protected function ajaxLighttpdLog()
{
User::assertPermission("tab.lighttpdlog");
$lines = $this->grepLighttpdLog('/var/log/lighttpd/error.log', 60);
if (count($lines) < 50) {
$lines = array_merge(
$this->grepLighttpdLog('/var/log/lighttpd/error.log.1', 60 - count($lines)), $lines);
}
echo '<pre>', htmlspecialchars(implode('', $lines), ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8'), '</pre>';
}
protected function ajaxLdadpLog()
{
User::assertPermission("tab.ldadplog");
if (!Module::isAvailable('sysconfig')) {
die('SysConfig module not enabled');
}
$ids = ConfigModuleBaseLdap::getActiveModuleIds();
//error_log(print_r($ids, true));
$output = [];
foreach ($ids as $id) {
$module = ConfigModule::get($id);
if ($module === null) {
$name = "#$id";
} else {
$name = $module->title();
}
$service = "ldadp@{$id}.service";
$output[] = [
'name' => $name,
'service' => $service,
'task' => Taskmanager::submit('Systemctl', ['operation' => 'journal', 'service' => $service]),
];
}
//error_log(print_r($output, true));
echo Render::parse('ajax-journal', ['modules' => $output]);
}
protected function ajaxNetstat()
{
User::assertPermission("tab.netstat");
$taskId = Taskmanager::submit('Netstat');
if ($taskId === false)
return;
$status = Taskmanager::waitComplete($taskId, 3500);
$data = $status['data']['messages'] ?? 'Taskmanager error';
echo '<pre>', htmlspecialchars($data, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8'), '</pre>';
}
protected function ajaxPsList()
{
User::assertPermission("tab.pslist");
$taskId = Taskmanager::submit('PsList');
if ($taskId === false)
return;
$status = Taskmanager::waitComplete($taskId, 3500);
$data = $status['data']['messages'] ?? 'Taskmanager error';
echo '<pre>', htmlspecialchars($data, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8'), '</pre>';
}
/**
* @return array{percent: numeric, size: string, free: string, color: string, filesystem: string}
*/
private function convertDiskStat(array $stat, int $minFreeMb): array
{
return [
'percent' => $stat['usedPercent'],
'size' => Util::readableFileSize($stat['sizeKb'] * 1024),
'free' => Util::readableFileSize($stat['freeKb'] * 1024),
'color' => $this->usageColor($stat, $minFreeMb),
'filesystem' => $stat['fileSystem'],
];
}
private function usageColor(array $stat, int $minFreeMb): string
{
$freeMb = round($stat['freeKb'] / 1024);
// All good is half space free, or 4x the min free amount, whatever is more
$okFreeMb = max($minFreeMb * 4, round($stat['sizeKb']) / (1024 * 2));
if ($freeMb > $okFreeMb) {
$usedPercent = 0;
} elseif ($freeMb < $minFreeMb) {
$usedPercent = 100;
} else {
$usedPercent = 100 - round(($freeMb - $minFreeMb) / ($okFreeMb - $minFreeMb) * 100);
}
if ($usedPercent <= 50) {
$r = $b = $usedPercent / 3;
$g = (100 - $usedPercent * (50 / 80));
} elseif ($usedPercent <= 70) {
$r = 55 + ($usedPercent - 50) * (30 / 20);
$g = 60;
$b = 0;
} else {
$r = ($usedPercent - 70) / 3 + 90;
$g = (100 - $usedPercent) * (60 / 30);
$b = 0;
}
$r = dechex((int)round($r * 2.55));
$g = dechex((int)round($g * 2.55));
$b = dechex((int)round($b * 2.55));
return sprintf("%02s%02s%02s", $r, $g, $b);
}
}
