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<?php
/**
* PSSTATUS Plugin
*
* PHP version 5
*
* @category PHP
* @package PSI_Plugin_PS
* @author Michael Cramer <BigMichi1@users.sourceforge.net>
* @copyright 2009 phpSysInfo
* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License
* @version SVN: $Id: class.PS.inc.php 481 2011-08-14 20:51:54Z jacky672 $
* @link http://phpsysinfo.sourceforge.net
*/
/**
* process Plugin, which displays all running processes
* a simple tree view which is filled with the running processes which are determined by
* calling the "ps" command line utility, another way is to provide
* a file with the output of the ps utility, so there is no need to run a execute by the
* webserver, the format of the command is written down in the ps.config.php file, where also
* the method of getting the information is configured
*
* @category PHP
* @package PSI_Plugin_PS
* @author Michael Cramer <BigMichi1@users.sourceforge.net>
* @copyright 2009 phpSysInfo
* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License
* @version Release: 3.0
* @link http://phpsysinfo.sourceforge.net
*/
class PS extends PSI_Plugin
{
/**
* variable, which holds the content of the command
* @var array
*/
private $_filecontent = array();
/**
* variable, which holds the result before the xml is generated out of this array
* @var array
*/
private $_result = array();
/**
* read the data into an internal array and also call the parent constructor
*
* @param String $enc encoding
*/
public function __construct($enc)
{
parent::__construct(__CLASS__, $enc);
switch (PSI_PLUGIN_PS_ACCESS) {
case 'command':
if (PHP_OS == 'WINNT') {
$objLocator = new COM("WbemScripting.SWbemLocator");
$wmi = $objLocator->ConnectServer();
$os_wmi = $wmi->InstancesOf('Win32_OperatingSystem');
foreach ($os_wmi as $os) {
$memtotal = $os->TotalVisibleMemorySize * 1024;
}
$process_wmi = $wmi->InstancesOf('Win32_Process');
foreach ($process_wmi as $process) {
if (strlen(trim($process->CommandLine)) > 0) {
$ps = trim($process->CommandLine);
} else {
$ps = trim($process->Caption);
}
if (trim($process->ProcessId) != 0) {
$memusage = round(trim($process->WorkingSetSize) * 100 / $memtotal, 1);
//ParentProcessId
//Unique identifier of the process that creates a process. Process identifier numbers are reused, so they
//only identify a process for the lifetime of that process. It is possible that the process identified by
//ParentProcessId is terminated, so ParentProcessId may not refer to a running process. It is also
//possible that ParentProcessId incorrectly refers to a process that reuses a process identifier. You can
//use the CreationDate property to determine whether the specified parent was created after the process
//represented by this Win32_Process instance was created.
//=> subtrees of processes may be missing (WHAT TODO?!?)
$this->_filecontent[] = trim($process->ProcessId)." ".trim($process->ParentProcessId)." ".$memusage." ".$ps;
}
}
} else {
CommonFunctions::executeProgram("ps", "axo pid,ppid,pmem,args", $buffer, PSI_DEBUG);
}
break;
case 'data':
CommonFunctions::rfts(APP_ROOT."/data/ps.txt", $buffer);
break;
default:
$this->global_error->addConfigError("__construct()", "PSI_PLUGIN_PS_ACCESS");
break;
}
if (PHP_OS != 'WINNT') {
if (trim($buffer) != "") {
$this->_filecontent = preg_split("/\n/", $buffer, -1, PREG_SPLIT_NO_EMPTY);
unset($this->_filecontent[0]);
} else {
$this->_filecontent = array();
}
}
}
/**
* doing all tasks to get the required informations that the plugin needs
* result is stored in an internal array<br>the array is build like a tree,
* so that it is possible to get only a specific process with the childs
*
* @return void
*/
public function execute()
{
if ( empty($this->_filecontent)) {
return;
}
foreach ($this->_filecontent as $roworig) {
$row = preg_split("/[\s]+/", trim($roworig), 4);
if (count($row) != 4) {
break;
}
foreach ($row as $key=>$val) {
$items[$row[0]][$key] = $val;
}
if ($row[1] !== $row[0]) {
$items[$row[1]]['childs'][$row[0]] = &$items[$row[0]];
}
}
$this->_result = $items[0];
}
/**
* generates the XML content for the plugin
*
* @return SimpleXMLElement entire XML content for the plugin
*/
public function xml()
{
$positions = array(0=>0);
$xml = $this->_addchild($this->_result['childs'], $this->xml, $positions);
return $this->xml->getSimpleXmlElement();
}
/**
* recursive function to allow appending child processes to a parent process
*
* @param Array $child part of the array which should be appended to the XML
* @param SimpleXMLExtended $xml XML-Object to which the array content is appended
* @param Array &$positions array with parent positions in xml structure
*
* @return SimpleXMLExtended Object with the appended array content
*/
private function _addchild($child, $xml, &$positions)
{
foreach ($child as $key=>$value) {
$xmlnode = $xml->addChild("Process");
foreach ($value as $key2=>$value2) {
if (!is_array($value2)) {
switch ($key2) {
case 0:
array_push($positions, $value2);
$xmlnode->addAttribute('PID', $value2);
break;
case 1:
$xmlnode->addAttribute('ParentID', array_search($value2, $positions));
$xmlnode->addAttribute('PPID', $value2);
break;
case 2:
$xmlnode->addAttribute('MemoryUsage', $value2);
break;
case 3:
$xmlnode->addAttribute('Name', $value2);
break;
}
} else {
$this->_addChild($value2, $xml, $positions);
}
}
}
return $xml;
}
}
?>