<?php
class Page_SystemStatus extends Page
{
private $rebootTask = false;
protected function doPreprocess()
{
User::load();
if (!User::isLoggedIn()) {
Message::addError('main.no-permission');
Util::redirect('?do=Main');
}
if (Request::post('action') === 'reboot') {
if (Request::post('confirm') !== 'yep') {
Message::addError('reboot-unconfirmed');
Util::redirect('?do=SystemStatus');
}
$this->rebootTask = Taskmanager::submit('Reboot');
}
}
protected function doRender()
{
$data = array();
if (is_array($this->rebootTask) && isset($this->rebootTask['id'])) {
$data['rebootTask'] = $this->rebootTask['id'];
}
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 {
echo "Action $action not known in " . get_class();
}
}
protected function ajaxDmsdUsers()
{
$ret = Download::asStringPost('http://127.0.0.1:9080/status/fileserver', false, 2, $code);
if ($code != 200) {
Header('HTTP/1.1 502 Internal Server Error');
die('Internal Server Wurst');
}
$data = @json_decode($ret, true);
if (is_array($data)) {
$ret = 'Uploads: ' . $data['activeUploads'] . ', Downloads: ' . $data['activeDownloads'];
} else {
$ret = '???';
}
die($ret);
}
protected function ajaxDiskStat()
{
$task = Taskmanager::submit('DiskStat');
if ($task === false)
return;
$task = Taskmanager::waitComplete($task, 3000);
if (!isset($task['data']['list']) || empty($task['data']['list'])) {
Taskmanager::addErrorMessage($task);
return;
}
$store = Property::getVmStoreUrl();
$storeUsage = false;
$systemUsage = false;
if ($store !== false) {
if ($store === '<local>')
$storePoint = '/';
else
$storePoint = CONFIG_VMSTORE_DIR;
// Determine free space
foreach ($task['data']['list'] as $entry) {
if ($entry['mountPoint'] === $storePoint) {
$storeUsage = array(
'percent' => $entry['usedPercent'],
'size' => Util::readableFileSize($entry['sizeKb'] * 1024),
'free' => Util::readableFileSize($entry['freeKb'] * 1024),
'color' => $this->usageColor($entry['usedPercent'])
);
}
if ($entry['mountPoint'] === '/') {
$systemUsage = array(
'percent' => $entry['usedPercent'],
'size' => Util::readableFileSize($entry['sizeKb'] * 1024),
'free' => Util::readableFileSize($entry['freeKb'] * 1024),
'color' => $this->usageColor($entry['usedPercent'])
);
}
}
$data = array(
'store' => $storeUsage,
'system' => $systemUsage
);
// Determine if proper vm store is being used
if ($store !== '<local>') {
$data['storeMissing'] = $store;
}
foreach ($task['data']['list'] as $entry) {
if ($entry['mountPoint'] !== CONFIG_VMSTORE_DIR)
continue;
if ($store !== $entry['fileSystem']) {
$data['wrongStore'] = $entry['fileSystem'];
break;
}
$data['storeMissing'] = false;
}
} else {
$data['notConfigured'] = true;
}
echo Render::parse('diskstat', $data);
}
protected function ajaxAddressList()
{
$task = Taskmanager::submit('LocalAddressesList');
if ($task === false)
return;
$task = Taskmanager::waitComplete($task, 3000);
if (!isset($task['data']['addresses']) || empty($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()
{
$data = array();
$memInfo = file_get_contents('/proc/meminfo');
$stat = file_get_contents('/proc/stat');
preg_match_all('/\b(\w+):\s+(\d+)\s/s', $memInfo, $out, PREG_SET_ORDER);
foreach ($out as $e) {
$data[$e[1]] = $e[2];
}
if (preg_match('/\bcpu\s+(?<user>\d+)\s+(?<nice>\d+)\s+(?<system>\d+)\s+(?<idle>\d+)\s+(?<iowait>\d+)\s+(?<irq>\d+)\s+(?<softirq>\d+)(\s|$)/', $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()
{
$cpuInfo = file_get_contents('/proc/cpuinfo');
$uptime = file_get_contents('/proc/uptime');
$cpuCount = preg_match_all('/\bprocessor\s/', $cpuInfo, $out);
//$cpuCount = count($out);
$data = array(
'cpuCount' => $cpuCount,
'memTotal' => '???',
'memFree' => '???',
'swapTotal' => '???',
'swapUsed' => '???',
'uptime' => '???'
);
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'])) {
$data['memTotal'] = Util::readableFileSize($info['MemTotal'] * 1024);
$data['memFree'] = Util::readableFileSize(($info['MemFree'] + $info['Buffers'] + $info['Cached']) * 1024);
$data['memPercent'] = 100 - round((($info['MemFree'] + $info['Buffers'] + $info['Cached']) / $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);
$data['swapWarning'] = ($data['swapPercent'] > 50 || ($info['SwapTotal'] - $info['SwapFree']) > 200000);
}
if (isset($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()
{
$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()
{
$data = array();
$taskId = Trigger::ldadp();
if ($taskId === false)
return;
$status = Taskmanager::waitComplete($taskId, 10000);
if (Taskmanager::isFailed($status)) {
if (isset($status['data']['messages']))
$data['ldadpError'] = $status['data']['messages'];
else
$data['ldadpError'] = 'Taskmanager error';
}
// TODO: Dozentenmodul, tftp, ...
echo Render::parse('services', $data);
}
protected function ajaxDmsdLog()
{
$fh = @fopen('/var/log/dmsd.log', 'r');
if ($fh === false) {
echo 'Error opening log file';
return;
}
fseek($fh, -6000, SEEK_END);
$data = fread($fh, 6000);
@fclose($fh);
if ($data === false) {
echo 'Error reading from log file';
return;
}
// If we could read less, try the .1 file too
$amount = 6000 - strlen($data);
if ($amount > 100) {
$fh = @fopen('/var/log/dmsd.log.1', 'r');
if ($fh !== false) {
fseek($fh, -$amount, SEEK_END);
$data = fread($fh, $amount) . $data;
@fclose($fh);
}
}
if (strlen($data) < 5990) {
$start = 0;
} else {
$start = strpos($data, "\n") + 1;
}
echo '<pre>', htmlspecialchars(substr($data, $start)), '</pre>';
}
protected function ajaxLdadpLog()
{
$files = glob('/var/log/ldadp/*.log', GLOB_NOSORT);
if ($files === false || empty($files)) echo('No logs found');
$now = time();
foreach ($files as $file) {
$mod = filemtime($file);
if ($now - $mod > 86400) continue;
// New enough - handle
preg_match(',/(\d+)\.log,', $file, $out);
$module = ConfigModule::get($out[1]);
if ($module === false) {
echo '<h4>Module ', $out[1], '</h4>';
} else {
echo '<h4>Module ', htmlspecialchars($module->title()), '</h4>';
}
$fh = @fopen($file, 'r');
if ($fh === false) {
echo '<pre>Error opening log file</pre>';
continue;
}
fseek($fh, -5000, SEEK_END);
$data = fread($fh, 5000);
@fclose($fh);
if ($data === false) {
echo '<pre>Error reading from log file</pre>';
continue;
}
if (strlen($data) < 4990) {
$start = 0;
} else {
$start = strpos($data, "\n") + 1;
}
echo '<pre>', htmlspecialchars(substr($data, $start)), '</pre>';
}
}
protected function ajaxNetstat()
{
$taskId = Taskmanager::submit('Netstat');
if ($taskId === false)
return;
$status = Taskmanager::waitComplete($taskId, 3500);
if (isset($status['data']['messages']))
$data = $status['data']['messages'];
else
$data = 'Taskmanager error';
echo '<pre>', htmlspecialchars($data), '</pre>';
}
protected function ajaxPsList()
{
$taskId = Taskmanager::submit('PsList');
if ($taskId === false)
return;
$status = Taskmanager::waitComplete($taskId, 3500);
if (isset($status['data']['messages']))
$data = $status['data']['messages'];
else
$data = 'Taskmanager error';
echo '<pre>', htmlspecialchars($data), '</pre>';
}
private function usageColor($percent)
{
if ($percent <= 50) {
$r = $b = $percent / 3;
$g = (100 - $percent * (50 / 80));
} elseif ($percent <= 70) {
$r = 55 + ($percent - 50) * (30 / 20);
$g = 60;
$b = 0;
} else {
$r = ($percent - 70) / 3 + 90;
$g = (100 - $percent) * (60 / 30);
$b = 0;
}
$r = dechex(round($r * 2.55));
$g = dechex(round($g * 2.55));
$b = dechex(round($b * 2.55));
return sprintf("%02s%02s%02s", $r, $g, $b);
}
}
