public static function content_header($icon, $title, $subtitle = '')
{
$serverload = implode(', ', sys_getloadavg());
$pid = Service::ServiceData(SInfo::DATA_PID);
if ($subtitle != '') {
$title .= ' <span>> ' . $subtitle . '</span>';
}
$buf = '<div class="row">
<div class="col-xs-12 col-sm-7 col-md-7 col-lg-7">
<h2 class="page-title txt-color-blueDark"><i class="fa-fw fa ' . $icon . '"></i> ' . $title . '</h2>
</div>
<div class="col-xs-12 col-sm-5 col-md-5 col-lg-5">
<ul id="sparks" class="">
<li class="sparks-info">
<h5>LSWS PID <span id="lst-pid" class="txt-color-blue"> ' . $pid . ' </span></h5>
<a class="btn btn-success" title="' . DMsg::UIStr('menu_restart') . '" href="javascript:lst_restart()"><i class="fa fa-lg fa-repeat"></i></a>
</li>
<li class="sparks-info">
<h5> ' . DMsg::UIStr('note_loadavg') . ' <span id="lst-load" class="txt-color-purple"> ' . $serverload . ' </span></h5>
<a class="btn btn-info" title="' . DMsg::UIStr('menu_rtstats') . '" href="#view/realtimestats.php"><i class="fa fa-lg fa-bar-chart-o"></i></a>
</li>
</ul>
</div>
</div>
';
return $buf;
}
/**
* Returns a value from the cache.
*
* @param string $key
*
* @return mixed
*/
public function get($key)
{
$filePath = $this->getFilePathFromKey($key);
if (!file_exists($filePath)) {
return false;
}
if (!is_readable($filePath)) {
return false;
}
$cacheFileData = file_get_contents($filePath);
if ($this->config['gzipCompression']) {
$cacheFileData = gzuncompress($cacheFileData);
}
$cacheObj = json_decode($cacheFileData);
$unixLoad = sys_getloadavg();
if ($cacheObj->expiryTimestamp > time() || $unixLoad[0] >= $this->config['unixLoadUpperThreshold']) {
// Cache item has not yet expired or system load is too high
$content = $cacheObj->content;
if ($unserializedContent = @unserialize($content)) {
$content = $unserializedContent;
}
return $content;
} else {
// Cache item has expired
return false;
}
}
/**
* @return Stage
*/
public function frontendDashboard()
{
$Stage = new Stage('Dashboard', 'System');
$Value = 100 / disk_total_space(__DIR__) * disk_free_space(__DIR__);
Main::getDispatcher()->registerWidget('System', new Panel('Festplattenkapazität', array('<div class="progress" style="margin-bottom: 0;">
<div class="progress-bar progress-bar-success" style="width: ' . $Value . '%"></div>
<div class="progress-bar progress-bar-danger" style="width: ' . (100 - $Value) . '%"></div>
</div>', 'Gesamt: ' . number_format(disk_total_space(__DIR__), 0, ',', '.'), 'Frei: ' . number_format(disk_free_space(__DIR__), 0, ',', '.'))), 2, 2);
$free = shell_exec('free');
$free = (string) trim($free);
$free_arr = explode("\n", $free);
$mem = explode(" ", $free_arr[1]);
$mem = array_filter($mem);
$mem = array_merge($mem);
$Value = $mem[2] / $mem[1] * 100;
Main::getDispatcher()->registerWidget('System', new Panel('Speicherkapazität', array('<div class="progress" style="margin-bottom: 0;">
<div class="progress-bar progress-bar-success" style="width: ' . $Value . '%"></div>
<div class="progress-bar progress-bar-danger" style="width: ' . (100 - $Value) . '%"></div>
</div>', 'Gesamt: ' . number_format($mem[1], 0, ',', '.'), 'Frei: ' . number_format($mem[2], 0, ',', '.'))), 2, 2);
$load = sys_getloadavg();
Main::getDispatcher()->registerWidget('System', new Panel('Rechenkapazität', array('<div class="progress" style="margin-bottom: 0;">
<div class="progress-bar progress-bar-success" style="width: ' . 50 * (2 - $load[0]) . '%"></div>
<div class="progress-bar progress-bar-danger" style="width: ' . 50 * $load[0] . '%"></div>
</div>', 'Genutzt: ' . number_format($load[0], 5, ',', '.'), 'Frei: ' . number_format(2 - $load[0], 5, ',', '.'))), 2, 2);
$Stage->setContent(Main::getDispatcher()->fetchDashboard('System'));
return $Stage;
}
function get()
{
if (!get_config('system', 'hidden_version_siteinfo')) {
$version = sprintf(t('Version %s'), \Zotlabs\Lib\System::get_project_version());
if (@is_dir('.git') && function_exists('shell_exec')) {
$commit = @shell_exec('git log -1 --format="%h"');
$tag = \Zotlabs\Lib\System::get_std_version();
// @shell_exec('git describe --tags --abbrev=0');
}
if (!isset($commit) || strlen($commit) > 16) {
$commit = '';
}
} else {
$version = $commit = '';
}
$plugins_list = implode(', ', visible_plugin_list());
if ($plugins_list) {
$plugins_text = t('Installed plugins/addons/apps:');
} else {
$plugins_text = t('No installed plugins/addons/apps');
}
$txt = get_config('system', 'admininfo');
$admininfo = bbcode($txt);
if (file_exists('doc/site_donate.html')) {
$donate .= file_get_contents('doc/site_donate.html');
}
if (function_exists('sys_getloadavg')) {
$loadavg = sys_getloadavg();
}
$o = replace_macros(get_markup_template('siteinfo.tpl'), array('$title' => t('$Projectname'), '$description' => t('This is a hub of $Projectname - a global cooperative network of decentralized privacy enhanced websites.'), '$version' => $version, '$tag_txt' => t('Tag: '), '$tag' => $tag, '$polled' => t('Last background fetch: '), '$lastpoll' => get_poller_runtime(), '$load_average' => t('Current load average: '), '$loadavg_all' => $loadavg[0] . ', ' . $loadavg[1] . ', ' . $loadavg[2], '$commit' => $commit, '$web_location' => t('Running at web location') . ' ' . z_root(), '$visit' => t('Please visit <a href="http://hubzilla.org">hubzilla.org</a> to learn more about $Projectname.'), '$bug_text' => t('Bug reports and issues: please visit'), '$bug_link_url' => 'https://github.com/redmatrix/hubzilla/issues', '$bug_link_text' => t('$projectname issues'), '$contact' => t('Suggestions, praise, etc. - please email "redmatrix" at librelist - dot com'), '$donate' => $donate, '$adminlabel' => t('Site Administrators'), '$admininfo' => $admininfo, '$plugins_text' => $plugins_text, '$plugins_list' => $plugins_list));
call_hooks('about_hook', $o);
return $o;
}
protected function assureCpuNotBurning($load = 8)
{
$cpu = sys_getloadavg();
if ($cpu[0] > $load) {
throw new DelayException();
}
}
/**
* logData
*
* Retrives data and logs it to file
*
* @param string $type type of logging default set to normal but it can be API too.
* @return string $string if type is API returns data as string
*
*/
public function logData($type = false)
{
$class = __CLASS__;
$settings = Logger::$_settings->{$class};
$timestamp = time();
$load = null;
//use the php function if its there
if (!function_exists('sys_getloadavg')) {
$load = exec("cat /proc/loadavg | awk -F' ' '{print \$1\"|\"\$2\"|\"\$3}'");
} else {
$phpload = sys_getloadavg();
$load = $phpload[0] . "|" . $phpload[1] . "|" . $phpload[2];
}
//if we want fancy formatting in logs we can always format them like this
//$number = number_format((float)$number, 2, '.', '');
$string = $timestamp . '|' . $load . "\n";
//we can also add a switch to feed live data to server with no local logging
//by just returning data
$filename = sprintf($this->logfile, date('Y-m-d'));
LoadUtility::safefilerewrite($filename, $string, "a", true);
//If alerts are enabled, check for alerts
//note: $phpload dont work on 4.0 needs fixing above
if (Alert::$alertStatus) {
$alertString = $this->checkAlerts($timestamp, $phpload, $settings);
}
//Based on API mode return data if need be
if ($type == "api") {
return $string;
} else {
return true;
}
}
/**
* Dump live informations from extender process (if in daemon mode and pcntl installed)
*
* @param int $timestamp_absolute
* @param itn $parent_pid
* @param int $completed_processes
* @param itn $failed_processes
*/
public static final function dump($timestamp_absolute, $parent_pid, $completed_processes, $failed_processes, $paused)
{
$statusfile = EXTENDER_CACHE_FOLDER . self::$statusfile;
$data = array("RUNNING" => $paused ? 0 : 1, "STARTED" => $timestamp_absolute, "TIME" => microtime(true) - $timestamp_absolute, "PARENTPID" => $parent_pid, "COMPLETED" => $completed_processes, "FAILED" => $failed_processes, "CPUAVG" => sys_getloadavg(), "MEM" => memory_get_usage(true), "MEMPEAK" => memory_get_peak_usage(true), "USER" => get_current_user(), "NICENESS" => function_exists('pcntl_getpriority') ? pcntl_getpriority() : "UNDEFINED");
$content = serialize($data);
return file_put_contents($statusfile, $content);
}
/**
* Get load average in percents.
* @return string
*/
public static function loadAverage()
{
$load = 0;
if (stristr(PHP_OS, 'win')) {
// its not a better solution, but no other way to do this
$cmd = "wmic cpu get loadpercentage /all";
@exec($cmd, $output);
// if output is exist
if ($output) {
// try to find line with numeric data
foreach ($output as $line) {
if ($line && preg_match("/^[0-9]+\$/", $line)) {
$load = $line;
break;
}
}
}
} else {
$sys_load = sys_getloadavg();
// get linux load average (1 = 100% of 1 CPU)
$load = $sys_load[0] * 100;
// to percentage
}
if ((int) $load <= 0) {
return 'error';
}
return (int) $load . '%';
}
private function getServerCpuUsage()
{
$load = sys_getloadavg();
$cores = shell_exec('nproc');
$use = shell_exec('ps -A -o pcpu | tail -n+2 | paste -sd+ | bc');
return $use / $cores;
}
function get_server_load()
{
if (stristr(PHP_OS, 'win') != false) {
$fileModTime = filemtime("./load.cache");
$cache = @file_get_contents("./load.cache");
if (file_exists("./load.cache") && !empty($cache) && $fileModTime && time() - $fileModTime < 60) {
$load = $cache;
} else {
$wmi = new COM("Winmgmts://");
$server = $wmi->execquery("SELECT LoadPercentage FROM Win32_Processor");
$cpu_num = 0;
$load_total = 0;
foreach ($server as $cpu) {
$cpu_num++;
$load_total += $cpu->loadpercentage;
}
$load = round($load_total / $cpu_num, 2);
file_put_contents("./load.cache", $load);
}
} else {
$sys_load = sys_getloadavg();
$load = round($sys_load[0], 2);
}
return (int) $load;
}
private function loadAverage()
{
if (function_exists('sys_getloadavg')) {
$load = sys_getloadavg();
return $load[0];
}
}
public function cpu()
{
$loads = sys_getloadavg();
$cores = trim($this->ssh->exec("grep -P '^processor' /proc/cpuinfo|wc -l"));
$load = round($loads[0] / ($cores + 1) * 100, 2);
return ['num' => $cores, 'load' => $load];
}
/**
* 服务器负载保护函数，本方法目前不支持window系统
*
* 最大负载不要超过3*N核，例如有16核（含8核超线程）则 16*3=48
*
* @see http://php.net/manual/en/function.sys-getloadavg.php
*/
function _load_protection($max_load_avg = 24)
{
global $dir_log, $dir_wwwroot;
if (!function_exists('sys_getloadavg')) {
return false;
}
$load = sys_getloadavg();
if (!isset($load[0])) {
return false;
}
if ($load[0] <= $max_load_avg) {
// 未超过负载，则跳出
return false;
}
$msg_tpl = "[%s] HOST:%s LOAD:%s ARGV/URI:%s\n";
$time = @date(DATE_RFC2822);
$host = php_uname('n');
$load = sprintf('%.2f', $load[0]);
if (php_sapi_name() == "cli" || empty($_SERVER['PHP_SELF'])) {
$argv_or_uri = implode(',', $argv);
} else {
$argv_or_uri = $_SERVER['REQUEST_URI'];
}
$msg = sprintf($msg_tpl, $time, $host, $load, $argv_or_uri);
if (@is_dir($dir_log)) {
@file_put_contents($dir_log . "php-server-overload.log", $msg, FILE_APPEND);
}
# exit with 500 page
header("HTTP/1.1 500 Internal Server Error");
header("Expires: " . gmdate("D, d M Y H:i:s", time() - 99999) . " GMT");
header("Cache-Control: private");
header("Pragma: no-cache");
exit(file_get_contents($dir_wwwroot . 'errors/server_overload.html'));
}
public function verifyError()
{
$load = sys_getloadavg();
$CPUProcessNumber = $this->getMaxCPUProcessNumbers();
if ($load[$this->getTime()] > $CPUProcessNumber) {
$this->getHandler()->addErrorHandle("Current CPU process number is {$load[$this->getTime()]}, when allowed is {$CPUProcessNumber}", '', $this->getStateType());
}
}
/**
* CPU Last der letzten 1,5,15 Minuten auslesen
*/
static function getCPUusage()
{
if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
return false;
} else {
return sys_getloadavg();
}
}
public function monitor($metric)
{
switch ($metric) {
case 'cpu':
return new JsonResponse(['cpu' => sys_getloadavg()[0]]);
break;
}
}
function getload()
{
$load1 = sys_getloadavg();
$loadoutput = array();
$loadoutput['Metric'] = "Value";
$loadoutput = '{"cols":[{"id":"Load","label":"Load","type":"string"},{"id":"value","label":"Value","type":"number"}],"rows":[{"c":[{"v":"Now"},{"v":' . $load1[0] . '}]},{"c":[{"v":"15min"},{"v":' . $load1[1] . '}]},{"c":[{"v":"30mins"},{"v":' . $load1[2] . '}]}]}';
return $loadoutput;
}
/**
* Gets the current load average
* @return false|float the load average, or false if it could not be determined
*/
public function getCurrentLoad()
{
if (stristr(PHP_OS, "win")) {
return $this->getCurrentLoadWindows();
}
$avg = sys_getloadavg();
return array_shift($avg);
}
protected function getAvgLoad()
{
if (!function_exists('sys_getloadavg')) {
return 0;
}
$ret = sys_getloadavg();
return (double) $ret[0];
}
public function getServerLoad()
{
if ($this->ipAddress == '127.0.0.1') {
$load = sys_getloadavg();
$cpuCores = $this->num_cpus();
return (int) ($load[1] / $cpuCores * 100.0);
}
}
/**
* @param string $interval
* @return mixed
*/
public function getLoadAverage($interval = '5')
{
$la = array_combine(['1', '5', '15'], sys_getloadavg());
if (array_key_exists($interval, $la)) {
return $la[$interval];
} else {
throw new \InvalidArgumentException();
}
}
public function __invoke()
{
$load = sys_getloadavg();
if (isset($load[$this->interval])) {
return new Response($load[$this->interval], 200, array('Content-Type' => 'text/plain'));
} else {
return new Response('Whoops!', 500, array('Content-Type' => 'text/plain'));
}
}
function run()
{
$this->startTime = date('Y-m-d H:i:s');
$this->__status['start_loadavg'] = sys_getloadavg();
$this->process();
$this->__status['end_loadavg'] = sys_getloadavg();
$this->endTime = date('Y-m-d H:i:s');
return TRUE;
}
public function __invoke()
{
$sysload = sys_getloadavg();
$this->history[] = $sysload[0];
if (count($this->history) > 20) {
array_shift($this->history);
}
return ['current' => $sysload[0], 'history' => $this->history];
}
/**
* Adds the actual system load to the log message context.
*
* @param \AppserverIo\Logger\LogMessageInterface $logMessage The log message we want to add the system load
*
* @return string The processed log message
* @see \AppserverIo\Logger\Processors\ProcessorInterface::process()
*/
public function process(LogMessageInterface $logMessage)
{
// load the sysload values
$values = sys_getloadavg();
// create an array
$sysload = array('system_load_1' => array_shift($values), 'system_load_5' => array_shift($values), 'system_load_15' => array_shift($values));
// merge the values with the actual context instance
$logMessage->mergeIntoContext($sysload);
}
function randomBytes($length = 16, $secure = true, $raw = true, $startEntropy = "", &$rounds = 0, &$drop = 0)
{
static $lastRandom = "";
$output = "";
$length = abs((int) $length);
$secureValue = "";
$rounds = 0;
$drop = 0;
while (!isset($output[$length - 1])) {
//some entropy, but works ^^
$weakEntropy = array(is_array($startEntropy) ? implode($startEntropy) : $startEntropy, serialize(stat(__FILE__)), __DIR__, PHP_OS, microtime(), (string) lcg_value(), (string) PHP_MAXPATHLEN, PHP_SAPI, (string) PHP_INT_MAX . "." . PHP_INT_SIZE, serialize($_SERVER), serialize(get_defined_constants()), get_current_user(), serialize(ini_get_all()), (string) memory_get_usage() . "." . memory_get_peak_usage(), php_uname(), phpversion(), extension_loaded("gmp") ? gmp_strval(gmp_random(4)) : microtime(), zend_version(), (string) getmypid(), (string) getmyuid(), (string) mt_rand(), (string) getmyinode(), (string) getmygid(), (string) rand(), function_exists("zend_thread_id") ? (string) zend_thread_id() : microtime(), var_export(@get_browser(), true), function_exists("getrusage") ? @implode(getrusage()) : microtime(), function_exists("sys_getloadavg") ? @implode(sys_getloadavg()) : microtime(), serialize(get_loaded_extensions()), sys_get_temp_dir(), (string) disk_free_space("."), (string) disk_total_space("."), uniqid(microtime(), true), file_exists("/proc/cpuinfo") ? file_get_contents("/proc/cpuinfo") : microtime());
shuffle($weakEntropy);
$value = hash("sha512", implode($weakEntropy), true);
$lastRandom .= $value;
foreach ($weakEntropy as $k => $c) {
//mixing entropy values with XOR and hash randomness extractor
$value ^= hash("sha256", $c . microtime() . $k, true) . hash("sha256", mt_rand() . microtime() . $k . $c, true);
$value ^= hash("sha512", (string) lcg_value() . $c . microtime() . $k, true);
}
unset($weakEntropy);
if ($secure === true) {
$strongEntropyValues = array(is_array($startEntropy) ? hash("sha512", $startEntropy[($rounds + $drop) % count($startEntropy)], true) : hash("sha512", $startEntropy, true), file_exists("/dev/urandom") ? fread(fopen("/dev/urandom", "rb"), 64) : str_repeat("", 64), (function_exists("openssl_random_pseudo_bytes") and version_compare(PHP_VERSION, "5.3.4", ">=")) ? openssl_random_pseudo_bytes(64) : str_repeat("", 64), function_exists("mcrypt_create_iv") ? mcrypt_create_iv(64, MCRYPT_DEV_URANDOM) : str_repeat("", 64), $value);
$strongEntropy = array_pop($strongEntropyValues);
foreach ($strongEntropyValues as $value) {
$strongEntropy = $strongEntropy ^ $value;
}
$value = "";
//Von Neumann randomness extractor, increases entropy
$bitcnt = 0;
for ($j = 0; $j < 64; ++$j) {
$a = ord($strongEntropy[$j]);
for ($i = 0; $i < 8; $i += 2) {
$b = ($a & 1 << $i) > 0 ? 1 : 0;
if ($b != (($a & 1 << $i + 1) > 0 ? 1 : 0)) {
$secureValue |= $b << $bitcnt;
if ($bitcnt == 7) {
$value .= chr($secureValue);
$secureValue = 0;
$bitcnt = 0;
} else {
++$bitcnt;
}
++$drop;
} else {
$drop += 2;
}
}
}
}
$output .= substr($value, 0, min($length - strlen($output), $length));
unset($value);
++$rounds;
}
$lastRandom = hash("sha512", $lastRandom, true);
return $raw === false ? bin2hex($output) : $output;
}
function load_monit_init()
{
$load = sys_getloadavg();
$sleep = 5;
$maxload = 2;
if ($load[0] > $maxload) {
sleep($sleep);
echo "Busy server - sleep {$sleep} seconds<br>";
}
}
public function getLoadAVG()
{
$load = sys_getloadavg();
if ($load[0] > 80) {
header('HTTP/1.1 503 Too busy, try again later');
die('Server too busy. Please try again later.');
} else {
return $load;
}
}
/**
* @test
*/
public function loadAvgReturnsArrayOfLoadAverage()
{
$client = static::createClient();
$client->request('GET', '/api/service/loadavg');
$response = $client->getResponse();
$this->assertEquals(200, $response->getStatusCode());
$this->assertJSON($response->getContent());
$result = json_decode($response->getContent(), true);
$this->assertEquals(sys_getloadavg(), $result);
}
function get_load()
{
$load = sys_getloadavg();
if ($load[0] > 80) {
return -1;
} else {
$this->res['load'] = $load;
return $load;
}
}
