<?php
class Page_SystemStatus extends Page
{
private $rebootTask = false;
protected function doPreprocess()
{
User::load();
if (!User::isLoggedIn()) {
Message::addError('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::addScriptTop('custom');
Render::addScriptBottom('circles.min');
Render::addTemplate('systemstatus/_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 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'])
);
}
}
// Determine if proper vm store is being used
if ($store === '<local>')
$storeError = false;
else
$storeError = 'VM-Store nicht eingebunden! Erwartet: ' . $store;
foreach ($task['data']['list'] as $entry) {
if ($entry['mountPoint'] === CONFIG_VMSTORE_DIR && $store !== $entry['fileSystem']) {
$storeError = 'Falscher VM-Store eingebunden! Erwartet: ' . $store . ' vorgefunden: ' . $entry['fileSystem'];
break;
} elseif ($entry['mountPoint'] === CONFIG_VMSTORE_DIR) {
$storeError = false;
}
}
} else {
$storeError = 'Storage not configured';
}
echo Render::parse('systemstatus/diskstat', array(
'store' => $storeUsage,
'system' => $systemUsage,
'storeError' => $storeError
));
}
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('systemstatus/addresses', array(
'addresses' => $task['data']['addresses']
));
}
protected function ajaxSystemInfo()
{
$cpuInfo = file_get_contents('/proc/cpuinfo');
$memInfo = file_get_contents('/proc/meminfo');
$stat = file_get_contents('/proc/stat');
$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'); // TODO: i18n
}
if (preg_match('/\bMemTotal:\s+(\d+)\s.*\bMemFree:\s+(\d+)\s.*\bBuffers:\s+(\d+)\s.*\bCached:\s+(\d+)\s.*\bSwapTotal:\s+(\d+)\s.*\bSwapFree:\s+(\d+)\s/s', $memInfo, $out)) {
$data['memTotal'] = Util::readableFileSize($out[1] * 1024);
$data['memFree'] = Util::readableFileSize(($out[2] + $out[3] + $out[4]) * 1024);
$data['memPercent'] = 100 - round((($out[2] + $out[3] + $out[4]) / $out[1]) * 100);
$data['swapTotal'] = Util::readableFileSize($out[5] * 1024);
$data['swapUsed'] = Util::readableFileSize(($out[5] - $out[6]) * 1024);
$data['swapPercent'] = 100 - round(($out[6] / $out[5]) * 100);
$data['swapWarning'] = ($data['swapPercent'] > 50 || ($out[5] - $out[6]) > 100000);
}
if (preg_match('/\bcpu\s+(?<user>\d+)\s+(?<nice>\d+)\s+(?<system>\d+)\s+(?<idle>\d+)\s+(?<iowait>\d+)\s+(?<irq>\d+)\s+(?<softirq>\d+)(\s|$)/', $stat, $out)) {
$total = $out['user'] + $out['nice'] + $out['system'] + $out['idle'] + $out['iowait'] + $out['irq'] + $out['softirq'];
$data['cpuLoad'] = 100 - round(($out['idle'] / $total) * 100);
$data['cpuSystem'] = round((($out['iowait'] + $out['irq'] + $out['softirq']) / $total) * 100);
$data['cpuLoadOk'] = true;
}
echo Render::parse('systemstatus/systeminfo', $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('systemstatus/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;
}
echo '<pre>', htmlspecialchars(substr($data, strpos($data, "\n") + 1)), '</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);
}
}
