255 lines
11 KiB
PHP
255 lines
11 KiB
PHP
<?php
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/**
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* PS Plugin
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*
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* PHP version 5
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*
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* @category PHP
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* @package PSI_Plugin_PS
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* @author Michael Cramer <BigMichi1@users.sourceforge.net>
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* @copyright 2009 phpSysInfo
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* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License
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* @version SVN: $Id: class.ps.inc.php 692 2012-09-08 17:12:08Z namiltd $
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* @link http://phpsysinfo.sourceforge.net
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*/
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/**
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* process Plugin, which displays all running processes
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* a simple tree view which is filled with the running processes which are determined by
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* calling the "ps" command line utility, another way is to provide
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* a file with the output of the ps utility, so there is no need to run a execute by the
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* webserver, the format of the command is written down in the phpsysinfo.ini file, where also
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* the method of getting the information is configured
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*
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* @category PHP
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* @package PSI_Plugin_PS
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* @author Michael Cramer <BigMichi1@users.sourceforge.net>
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* @copyright 2009 phpSysInfo
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* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License
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* @version Release: 3.0
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* @link http://phpsysinfo.sourceforge.net
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*/
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class PS extends PSI_Plugin
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{
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/**
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* variable, which holds the content of the command
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* @var array
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*/
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private $_filecontent = array();
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/**
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* variable, which holds the result before the xml is generated out of this array
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* @var array
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*/
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private $_result = array();
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/**
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* read the data into an internal array and also call the parent constructor
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*
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* @param String $enc encoding
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*/
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public function __construct($enc)
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{
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parent::__construct(__CLASS__, $enc);
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switch (strtolower(PSI_PLUGIN_PS_ACCESS)) {
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case 'command':
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if (PSI_OS == 'WINNT') {
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try {
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$objLocator = new COM("WbemScripting.SWbemLocator");
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$wmi = $objLocator->ConnectServer();
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$os_wmi = $wmi->InstancesOf('Win32_OperatingSystem');
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foreach ($os_wmi as $os) {
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$memtotal = $os->TotalVisibleMemorySize * 1024;
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}
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$process_wmi = $wmi->InstancesOf('Win32_Process');
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foreach ($process_wmi as $process) {
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if (strlen(trim($process->CommandLine)) > 0) {
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$ps = trim($process->CommandLine);
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} else {
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$ps = trim($process->Caption);
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}
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if (trim($process->ProcessId) != 0) {
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$memusage = round(trim($process->WorkingSetSize) * 100 / $memtotal, 1);
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//ParentProcessId
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//Unique identifier of the process that creates a process. Process identifier numbers are reused, so they
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//only identify a process for the lifetime of that process. It is possible that the process identified by
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//ParentProcessId is terminated, so ParentProcessId may not refer to a running process. It is also
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//possible that ParentProcessId incorrectly refers to a process that reuses a process identifier. You can
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//use the CreationDate property to determine whether the specified parent was created after the process
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//represented by this Win32_Process instance was created.
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//=> subtrees of processes may be missing (WHAT TODO?!?)
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$this->_filecontent[] = trim($process->ProcessId)." ".trim($process->ParentProcessId)." ".$memusage." ".$ps;
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}
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}
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} catch (Exception $e) {
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}
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} else {
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CommonFunctions::executeProgram("ps", "axo pid,ppid,pmem,args", $buffer, PSI_DEBUG);
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if (((PSI_OS == 'Linux') || (PSI_OS == 'Android')) && (!preg_match("/^[^\n]+\n.+/", $buffer))) { //alternative method if no data
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if (CommonFunctions::rfts('/proc/meminfo', $mbuf)) {
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$bufe = preg_split("/\n/", $mbuf, -1, PREG_SPLIT_NO_EMPTY);
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$totalmem = 0;
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foreach ($bufe as $buf) {
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if (preg_match('/^MemTotal:\s+(.*)\s*kB/i', $buf, $ar_buf)) {
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$totalmem = $ar_buf[1];
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break;
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}
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}
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$buffer = " PID PPID %MEM COMMAND\n";
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$processlist = glob('/proc/*/status', GLOB_NOSORT);
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if (($total = count($processlist)) > 0) {
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natsort($processlist); //first sort
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$prosess = array();
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foreach ($processlist as $processitem) { //second sort
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$process[] = $processitem;
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}
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$buf = "";
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for ($i = 0; $i < $total; $i++) {
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if (CommonFunctions::rfts($process[$i], $buf, 0, 4096, false)) {
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if (($totalmem != 0) && (preg_match('/^VmRSS:\s+(\d+)\s+kB/m', $buf, $tmppmem))) {
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$pmem = round(100 * $tmppmem[1] / $totalmem, 1);
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} else {
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$pmem = 0;
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}
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$name = null;
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if (CommonFunctions::rfts(substr($process[$i], 0, strlen($process[$i])-6)."cmdline", $namebuf, 0, 4096, false)) {
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$name = str_replace(chr(0), ' ', trim($namebuf));
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}
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if (preg_match('/^Pid:\s+(\d+)/m', $buf, $tmppid) &&
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preg_match('/^PPid:\s+(\d+)/m', $buf, $tmpppid) &&
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preg_match('/^Name:\s+(.+)/m', $buf, $tmpargs)) {
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$pid = $tmppid[1];
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$ppid = $tmpppid[1];
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$args = $tmpargs[1];
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if ($name !== null) {
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if ($name !== "") {
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$args = $name;
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} else {
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$args = "[".$args."]";
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}
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}
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$buffer .= $pid." ".$ppid." ".$pmem." ".$args."\n";
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}
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}
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}
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}
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}
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}
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}
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break;
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case 'data':
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CommonFunctions::rfts(APP_ROOT."/data/ps.txt", $buffer);
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break;
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default:
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$this->global_error->addConfigError("__construct()", "PSI_PLUGIN_PS_ACCESS");
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break;
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}
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if (PSI_OS != 'WINNT') {
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if (trim($buffer) != "") {
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$this->_filecontent = preg_split("/\n/", $buffer, -1, PREG_SPLIT_NO_EMPTY);
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unset($this->_filecontent[0]);
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} else {
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$this->_filecontent = array();
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}
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}
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}
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/**
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* doing all tasks to get the required informations that the plugin needs
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* result is stored in an internal array<br>the array is build like a tree,
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* so that it is possible to get only a specific process with the childs
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*
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* @return void
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*/
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public function execute()
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{
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if (empty($this->_filecontent)) {
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return;
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}
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foreach ($this->_filecontent as $roworig) {
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$row = preg_split("/[\s]+/", trim($roworig), 4);
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if (count($row) != 4) {
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break;
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}
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foreach ($row as $key=>$val) {
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$items[$row[0]][$key] = $val;
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}
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if ($row[1] !== $row[0]) {
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$items[$row[1]]['childs'][$row[0]] = &$items[$row[0]];
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}
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}
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foreach ($items as $item) { //find zombie
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if (!isset($item[0])) {
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foreach ($item["childs"] as $subitem) {
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$zombie = $subitem[1];
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if ($zombie != 0) {
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$items[$zombie]["0"] = $zombie;
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$items[$zombie]["1"] = "0";
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$items[$zombie]["2"] = "0";
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$items[$zombie]["3"] = "unknown";
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$items[0]['childs'][$zombie] = &$items[$zombie];
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}
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break; //first is sufficient
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}
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}
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}
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if (isset($items[0])) {
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$this->_result = $items[0];
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} else {
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$_result = array();
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}
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}
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/**
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* generates the XML content for the plugin
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*
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* @return SimpleXMLElement entire XML content for the plugin
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*/
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public function xml()
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{
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if ($this->_result) {
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$positions = array(0=>0);
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$this->_addchild($this->_result['childs'], $this->xml, $positions);
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}
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return $this->xml->getSimpleXmlElement();
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}
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/**
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* recursive function to allow appending child processes to a parent process
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*
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* @param Array $child part of the array which should be appended to the XML
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* @param SimpleXMLExtended $xml XML-Object to which the array content is appended
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* @param Array &$positions array with parent positions in xml structure
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*
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* @return SimpleXMLExtended Object with the appended array content
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*/
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private function _addchild($child, SimpleXMLExtended $xml, &$positions)
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{
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foreach ($child as $key=>$value) {
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$xmlnode = $xml->addChild("Process");
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if (isset($value[0])) {
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array_push($positions, $value[0]);
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$xmlnode->addAttribute('PID', $value[0]);
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$parentid = array_search($value[1], $positions);
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$xmlnode->addAttribute('ParentID', $parentid);
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$xmlnode->addAttribute('PPID', $value[1]);
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$xmlnode->addAttribute('MemoryUsage', $value[2]);
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$xmlnode->addAttribute('Name', $value[3]);
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if (PSI_OS !== 'WINNT') {
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if ($parentid === 1){
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$xmlnode->addAttribute('Expanded', 0);
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}
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if (defined('PSI_PLUGIN_PS_SHOW_KTHREADD_EXPANDED') && (PSI_PLUGIN_PS_SHOW_KTHREADD_EXPANDED === false) && ($value[3] === "[kthreadd]")) {
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$xmlnode->addAttribute('Expanded', 0);
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}
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}
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}
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if (isset($value['childs'])) {
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$this->_addChild($value['childs'], $xml, $positions);
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}
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}
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return $xml;
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}
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}
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