564 lines
22 KiB
PHP
564 lines
22 KiB
PHP
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<?php
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/**
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* common Functions class
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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
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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.CommonFunctions.inc.php 699 2012-09-15 11:57:13Z namiltd $
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* @link http://phpsysinfo.sourceforge.net
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*/
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/**
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* class with common functions used in all places
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*
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* @category PHP
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* @package PSI
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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 CommonFunctions
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{
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private static function _parse_log_file($string)
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{
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if (defined('PSI_LOG') && is_string(PSI_LOG) && (strlen(PSI_LOG)>0) && ((substr(PSI_LOG, 0, 1)=="-") || (substr(PSI_LOG, 0, 1)=="+"))) {
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$log_file = substr(PSI_LOG, 1);
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if (file_exists($log_file)) {
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$contents = @file_get_contents($log_file);
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if ($contents && preg_match("/^\-\-\-[^-\r\n]+\-\-\- ".preg_quote($string, '/')."\r?\n/m", $contents, $matches, PREG_OFFSET_CAPTURE)) {
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$findIndex = $matches[0][1];
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if (preg_match("/\r?\n/m", $contents, $matches, PREG_OFFSET_CAPTURE, $findIndex)) {
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$startIndex = $matches[0][1]+1;
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if (preg_match("/^\-\-\-[^-\r\n]+\-\-\- /m", $contents, $matches, PREG_OFFSET_CAPTURE, $startIndex)) {
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$stopIndex = $matches[0][1];
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return substr($contents, $startIndex, $stopIndex-$startIndex);
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} else {
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return substr($contents, $startIndex);
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}
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}
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}
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}
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}
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return false;
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}
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/**
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* Find a system program, do also path checking when not running on WINNT
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* on WINNT we simply return the name with the exe extension to the program name
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*
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* @param string $strProgram name of the program
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*
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* @return string complete path and name of the program
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*/
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private static function _findProgram($strProgram)
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{
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$path_parts = pathinfo($strProgram);
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if (empty($path_parts['basename'])) {
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return;
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}
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$arrPath = array();
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if ((PSI_OS == 'WINNT') && empty($path_parts['extension'])) {
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$strProgram .= '.exe';
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$path_parts = pathinfo($strProgram);
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}
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if (empty($path_parts['dirname']) || ($path_parts['dirname'] == '.')) {
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if (PSI_OS == 'WINNT') {
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$arrPath = preg_split('/;/', getenv("Path"), -1, PREG_SPLIT_NO_EMPTY);
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} else {
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$arrPath = preg_split('/:/', getenv("PATH"), -1, PREG_SPLIT_NO_EMPTY);
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}
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if (defined('PSI_ADD_PATHS') && is_string(PSI_ADD_PATHS)) {
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if (preg_match(ARRAY_EXP, PSI_ADD_PATHS)) {
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$arrPath = array_merge(eval(PSI_ADD_PATHS), $arrPath); // In this order so $addpaths is before $arrPath when looking for a program
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} else {
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$arrPath = array_merge(array(PSI_ADD_PATHS), $arrPath); // In this order so $addpaths is before $arrPath when looking for a program
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}
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}
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} else {
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array_push($arrPath, $path_parts['dirname']);
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$strProgram = $path_parts['basename'];
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}
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//add some default paths if we still have no paths here
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if (empty($arrPath) && PSI_OS != 'WINNT') {
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if (PSI_OS == 'Android') {
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array_push($arrPath, '/system/bin');
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} else {
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array_push($arrPath, '/bin', '/sbin', '/usr/bin', '/usr/sbin', '/usr/local/bin', '/usr/local/sbin');
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}
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}
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$exceptPath = "";
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if ((PSI_OS == 'WINNT') && (($windir = getenv("WinDir")) !== false)) {
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$windir = strtolower($windir);
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foreach ($arrPath as $strPath) {
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if ((strtolower($strPath) == $windir."\\system32") && is_dir($windir."\\SysWOW64")) {
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$exceptPath = $windir."\\sysnative";
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array_push($arrPath, $exceptPath);
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break;
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}
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}
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} else if (PSI_OS == 'Android') {
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$exceptPath = '/system/bin';
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}
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// If open_basedir defined, fill the $open_basedir array with authorized paths,. (Not tested when no open_basedir restriction)
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if ((bool) ini_get('open_basedir')) {
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if (PSI_OS == 'WINNT') {
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$open_basedir = preg_split('/;/', ini_get('open_basedir'), -1, PREG_SPLIT_NO_EMPTY);
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} else {
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$open_basedir = preg_split('/:/', ini_get('open_basedir'), -1, PREG_SPLIT_NO_EMPTY);
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}
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}
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foreach ($arrPath as $strPath) {
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// Path with trailing slash
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if (PSI_OS == 'WINNT') {
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$strPathS = rtrim($strPath, "\\")."\\";
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} else {
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$strPathS = rtrim($strPath, "/")."/";
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}
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// To avoid "open_basedir restriction in effect" error when testing paths if restriction is enabled
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if (isset($open_basedir)) {
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$inBaseDir = false;
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if (PSI_OS == 'WINNT') {
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foreach ($open_basedir as $openbasedir) {
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if (substr($openbasedir, -1)=="\\") {
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$str_Path = $strPathS;
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} else {
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$str_Path = $strPath;
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}
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if (stripos($str_Path, $openbasedir) === 0) {
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$inBaseDir = true;
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break;
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}
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}
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} else {
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foreach ($open_basedir as $openbasedir) {
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if (substr($openbasedir, -1)=="/") {
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$str_Path = $strPathS;
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} else {
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$str_Path = $strPath;
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}
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if (strpos($str_Path, $openbasedir) === 0) {
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$inBaseDir = true;
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break;
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}
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}
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}
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if ($inBaseDir == false) {
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continue;
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}
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}
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if (($strPath !== $exceptPath) && !is_dir($strPath)) {
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continue;
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}
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if (PSI_OS == 'WINNT') {
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$strProgrammpath = rtrim($strPath, "\\")."\\".$strProgram;
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} else {
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$strProgrammpath = rtrim($strPath, "/")."/".$strProgram;
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}
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if (is_executable($strProgrammpath)) {
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return $strProgrammpath;
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}
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}
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}
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/**
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* Execute a system program. return a trim()'d result.
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* does very crude pipe checking. you need ' | ' for it to work
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* ie $program = CommonFunctions::executeProgram('netstat', '-anp | grep LIST');
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* NOT $program = CommonFunctions::executeProgram('netstat', '-anp|grep LIST');
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*
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* @param string $strProgramname name of the program
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* @param string $strArgs arguments to the program
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* @param string &$strBuffer output of the command
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* @param boolean $booErrorRep en- or disables the reporting of errors which should be logged
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*
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* @return boolean command successfull or not
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*/
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public static function executeProgram($strProgramname, $strArgs, &$strBuffer, $booErrorRep = true)
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{
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if (defined('PSI_LOG') && is_string(PSI_LOG) && (strlen(PSI_LOG)>0) && ((substr(PSI_LOG, 0, 1)=="-") || (substr(PSI_LOG, 0, 1)=="+"))) {
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$out = self::_parse_log_file("Executing: ".trim($strProgramname.' '.$strArgs));
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if ($out == false) {
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if (substr(PSI_LOG, 0, 1)=="-") {
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$strBuffer = '';
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return false;
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}
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} else {
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$strBuffer = $out;
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return true;
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}
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}
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$strBuffer = '';
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$strError = '';
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$pipes = array();
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$strProgram = self::_findProgram($strProgramname);
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$error = Error::singleton();
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if (!$strProgram) {
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if ($booErrorRep) {
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$error->addError('find_program('.$strProgramname.')', 'program not found on the machine');
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}
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return false;
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}
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// see if we've gotten a |, if we have we need to do path checking on the cmd
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if ($strArgs) {
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$arrArgs = preg_split('/ /', $strArgs, -1, PREG_SPLIT_NO_EMPTY);
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for ($i = 0, $cnt_args = count($arrArgs); $i < $cnt_args; $i++) {
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if ($arrArgs[$i] == '|') {
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$strCmd = $arrArgs[$i + 1];
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$strNewcmd = self::_findProgram($strCmd);
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$strArgs = preg_replace("/\| ".$strCmd.'/', '| "'.$strNewcmd.'"', $strArgs);
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}
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}
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}
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$descriptorspec = array(0=>array("pipe", "r"), 1=>array("pipe", "w"), 2=>array("pipe", "w"));
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if (defined("PSI_MODE_POPEN") && PSI_MODE_POPEN === true) {
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if (PSI_OS == 'WINNT') {
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$process = $pipes[1] = popen('"'.$strProgram.'" '.$strArgs." 2>nul", "r");
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} else {
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$process = $pipes[1] = popen('"'.$strProgram.'" '.$strArgs." 2>/dev/null", "r");
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}
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} else {
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$process = proc_open('"'.$strProgram.'" '.$strArgs, $descriptorspec, $pipes);
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}
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if (is_resource($process)) {
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self::_timeoutfgets($pipes, $strBuffer, $strError);
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if (defined("PSI_MODE_POPEN") && PSI_MODE_POPEN === true) {
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$return_value = pclose($pipes[1]);
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} else {
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fclose($pipes[0]);
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fclose($pipes[1]);
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fclose($pipes[2]);
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// It is important that you close any pipes before calling
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// proc_close in order to avoid a deadlock
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$return_value = proc_close($process);
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}
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} else {
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if ($booErrorRep) {
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$error->addError($strProgram, "\nOpen process error");
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}
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return false;
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}
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$strError = trim($strError);
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$strBuffer = trim($strBuffer);
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if (defined('PSI_LOG') && is_string(PSI_LOG) && (strlen(PSI_LOG)>0) && (substr(PSI_LOG, 0, 1)!="-") && (substr(PSI_LOG, 0, 1)!="+")) {
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error_log("---".gmdate('r T')."--- Executing: ".trim($strProgramname.' '.$strArgs)."\n".$strBuffer."\n", 3, PSI_LOG);
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}
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if (! empty($strError)) {
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if ($booErrorRep) {
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$error->addError($strProgram, $strError."\nReturn value: ".$return_value);
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}
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return $return_value == 0;
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}
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return true;
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}
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/**
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* read a file and return the content as a string
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*
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* @param string $strFileName name of the file which should be read
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* @param string &$strRet content of the file (reference)
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* @param integer $intLines control how many lines should be read
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* @param integer $intBytes control how many bytes of each line should be read
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* @param boolean $booErrorRep en- or disables the reporting of errors which should be logged
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*
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* @return boolean command successfull or not
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*/
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public static function rfts($strFileName, &$strRet, $intLines = 0, $intBytes = 4096, $booErrorRep = true)
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{
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if (defined('PSI_LOG') && is_string(PSI_LOG) && (strlen(PSI_LOG)>0) && ((substr(PSI_LOG, 0, 1)=="-") || (substr(PSI_LOG, 0, 1)=="+"))) {
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$out = self::_parse_log_file("Reading: ".$strFileName);
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if ($out == false) {
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if (substr(PSI_LOG, 0, 1)=="-") {
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$strRet = '';
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return false;
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}
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} else {
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$strRet = $out;
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return true;
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}
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}
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$strFile = "";
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$intCurLine = 1;
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$error = Error::singleton();
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if (file_exists($strFileName)) {
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if (is_readable($strFileName)) {
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if ($fd = fopen($strFileName, 'r')) {
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while (!feof($fd)) {
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$strFile .= fgets($fd, $intBytes);
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if ($intLines <= $intCurLine && $intLines != 0) {
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break;
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} else {
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$intCurLine++;
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}
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}
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fclose($fd);
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$strRet = $strFile;
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if (defined('PSI_LOG') && is_string(PSI_LOG) && (strlen(PSI_LOG)>0) && (substr(PSI_LOG, 0, 1)!="-") && (substr(PSI_LOG, 0, 1)!="+")) {
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if ((strlen($strRet)>0)&&(substr($strRet, -1)!="\n")) {
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error_log("---".gmdate('r T')."--- Reading: ".$strFileName."\n".$strRet."\n", 3, PSI_LOG);
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} else {
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error_log("---".gmdate('r T')."--- Reading: ".$strFileName."\n".$strRet, 3, PSI_LOG);
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}
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}
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} else {
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if ($booErrorRep) {
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$error->addError('fopen('.$strFileName.')', 'file can not read by phpsysinfo');
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}
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return false;
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}
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} else {
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if ($booErrorRep) {
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$error->addError('fopen('.$strFileName.')', 'file permission error');
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}
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return false;
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}
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} else {
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if ($booErrorRep) {
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$error->addError('file_exists('.$strFileName.')', 'the file does not exist on your machine');
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}
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return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* file exists
|
||
|
|
*
|
||
|
|
* @param string $strFileName name of the file which should be check
|
||
|
|
*
|
||
|
|
* @return boolean command successfull or not
|
||
|
|
*/
|
||
|
|
public static function fileexists($strFileName)
|
||
|
|
{
|
||
|
|
if (defined('PSI_LOG') && is_string(PSI_LOG) && (strlen(PSI_LOG)>0) && ((substr(PSI_LOG, 0, 1)=="-") || (substr(PSI_LOG, 0, 1)=="+"))) {
|
||
|
|
$log_file = substr(PSI_LOG, 1);
|
||
|
|
if (file_exists($log_file)
|
||
|
|
&& ($contents = @file_get_contents($log_file))
|
||
|
|
&& preg_match("/^\-\-\-[^-\n]+\-\-\- ".preg_quote("Reading: ".$strFileName, '/')."\n/m", $contents)) {
|
||
|
|
return true;
|
||
|
|
} else {
|
||
|
|
if (substr(PSI_LOG, 0, 1)=="-") {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return file_exists($strFileName);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* reads a directory and return the name of the files and directorys in it
|
||
|
|
*
|
||
|
|
* @param string $strPath path of the directory which should be read
|
||
|
|
* @param boolean $booErrorRep en- or disables the reporting of errors which should be logged
|
||
|
|
*
|
||
|
|
* @return array content of the directory excluding . and ..
|
||
|
|
*/
|
||
|
|
public static function gdc($strPath, $booErrorRep = true)
|
||
|
|
{
|
||
|
|
$arrDirectoryContent = array();
|
||
|
|
$error = Error::singleton();
|
||
|
|
if (is_dir($strPath)) {
|
||
|
|
if ($handle = opendir($strPath)) {
|
||
|
|
while (($strFile = readdir($handle)) !== false) {
|
||
|
|
if ($strFile != "." && $strFile != "..") {
|
||
|
|
$arrDirectoryContent[] = $strFile;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
closedir($handle);
|
||
|
|
} else {
|
||
|
|
if ($booErrorRep) {
|
||
|
|
$error->addError('opendir('.$strPath.')', 'directory can not be read by phpsysinfo');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if ($booErrorRep) {
|
||
|
|
$error->addError('is_dir('.$strPath.')', 'directory does not exist on your machine');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $arrDirectoryContent;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Check for needed php extensions
|
||
|
|
*
|
||
|
|
* We need that extensions for almost everything
|
||
|
|
* This function will return a hard coded
|
||
|
|
* XML string (with headers) if the SimpleXML extension isn't loaded.
|
||
|
|
* Then it will terminate the script.
|
||
|
|
* See bug #1787137
|
||
|
|
*
|
||
|
|
* @param array $arrExt additional extensions for which a check should run
|
||
|
|
*
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public static function checkForExtensions($arrExt = array())
|
||
|
|
{
|
||
|
|
if ((strcasecmp(PSI_SYSTEM_CODEPAGE, "UTF-8") == 0) || (strcasecmp(PSI_SYSTEM_CODEPAGE, "CP437") == 0))
|
||
|
|
$arrReq = array('simplexml', 'pcre', 'xml', 'dom');
|
||
|
|
elseif (PSI_OS == "WINNT")
|
||
|
|
$arrReq = array('simplexml', 'pcre', 'xml', 'mbstring', 'dom', 'com_dotnet');
|
||
|
|
else
|
||
|
|
$arrReq = array('simplexml', 'pcre', 'xml', 'mbstring', 'dom');
|
||
|
|
$extensions = array_merge($arrExt, $arrReq);
|
||
|
|
$text = "";
|
||
|
|
$error = false;
|
||
|
|
$text .= "<?xml version='1.0'?>\n";
|
||
|
|
$text .= "<phpsysinfo>\n";
|
||
|
|
$text .= " <Error>\n";
|
||
|
|
foreach ($extensions as $extension) {
|
||
|
|
if (!extension_loaded($extension)) {
|
||
|
|
$text .= " <Function>checkForExtensions</Function>\n";
|
||
|
|
$text .= " <Message>phpSysInfo requires the ".$extension." extension to php in order to work properly.</Message>\n";
|
||
|
|
$error = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$text .= " </Error>\n";
|
||
|
|
$text .= "</phpsysinfo>";
|
||
|
|
if ($error) {
|
||
|
|
header("Content-Type: text/xml\n\n");
|
||
|
|
echo $text;
|
||
|
|
die();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* get the content of stdout/stderr with the option to set a timeout for reading
|
||
|
|
*
|
||
|
|
* @param array $pipes array of file pointers for stdin, stdout, stderr (proc_open())
|
||
|
|
* @param string &$out target string for the output message (reference)
|
||
|
|
* @param string &$err target string for the error message (reference)
|
||
|
|
* @param integer $timeout timeout value in seconds (default value is 30)
|
||
|
|
*
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
private static function _timeoutfgets($pipes, &$out, &$err, $timeout = 30)
|
||
|
|
{
|
||
|
|
$w = null;
|
||
|
|
$e = null;
|
||
|
|
|
||
|
|
if (defined("PSI_MODE_POPEN") && PSI_MODE_POPEN === true) {
|
||
|
|
$pipe2 = false;
|
||
|
|
} else {
|
||
|
|
$pipe2 = true;
|
||
|
|
}
|
||
|
|
while (!(feof($pipes[1]) && (!$pipe2 || feof($pipes[2])))) {
|
||
|
|
if ($pipe2) {
|
||
|
|
$read = array($pipes[1], $pipes[2]);
|
||
|
|
} else {
|
||
|
|
$read = array($pipes[1]);
|
||
|
|
}
|
||
|
|
|
||
|
|
$n = stream_select($read, $w, $e, $timeout);
|
||
|
|
|
||
|
|
if ($n === false) {
|
||
|
|
error_log('stream_select: failed !');
|
||
|
|
break;
|
||
|
|
} elseif ($n === 0) {
|
||
|
|
error_log('stream_select: timeout expired !');
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
foreach ($read as $r) {
|
||
|
|
if ($r == $pipes[1]) {
|
||
|
|
$out .= fread($r, 4096);
|
||
|
|
} else if (feof($pipes[1]) && $pipe2 && ($r == $pipes[2])) {//read STDERR after STDOUT
|
||
|
|
$err .= fread($r, 4096);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* function for getting a list of values in the specified context
|
||
|
|
* optionally filter this list, based on the list from third parameter
|
||
|
|
*
|
||
|
|
* @param $wmi holds the COM object that we pull the WMI data from
|
||
|
|
* @param string $strClass name of the class where the values are stored
|
||
|
|
* @param array $strValue filter out only needed values, if not set all values of the class are returned
|
||
|
|
*
|
||
|
|
* @return array content of the class stored in an array
|
||
|
|
*/
|
||
|
|
public static function getWMI($wmi, $strClass, $strValue = array())
|
||
|
|
{
|
||
|
|
$arrData = array();
|
||
|
|
if ($wmi) {
|
||
|
|
$value = "";
|
||
|
|
try {
|
||
|
|
$objWEBM = $wmi->Get($strClass);
|
||
|
|
$arrProp = $objWEBM->Properties_;
|
||
|
|
$arrWEBMCol = $objWEBM->Instances_();
|
||
|
|
foreach ($arrWEBMCol as $objItem) {
|
||
|
|
if (is_array($arrProp)) {
|
||
|
|
reset($arrProp);
|
||
|
|
}
|
||
|
|
$arrInstance = array();
|
||
|
|
foreach ($arrProp as $propItem) {
|
||
|
|
$value = $objItem->{$propItem->Name}; //instead exploitable eval("\$value = \$objItem->".$propItem->Name.";");
|
||
|
|
if (empty($strValue)) {
|
||
|
|
if (is_string($value)) $arrInstance[$propItem->Name] = trim($value);
|
||
|
|
else $arrInstance[$propItem->Name] = $value;
|
||
|
|
} else {
|
||
|
|
if (in_array($propItem->Name, $strValue)) {
|
||
|
|
if (is_string($value)) $arrInstance[$propItem->Name] = trim($value);
|
||
|
|
else $arrInstance[$propItem->Name] = $value;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$arrData[] = $arrInstance;
|
||
|
|
}
|
||
|
|
} catch (Exception $e) {
|
||
|
|
if (PSI_DEBUG) {
|
||
|
|
$error = Error::singleton();
|
||
|
|
$error->addError($e->getCode(), $e->getMessage());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $arrData;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* get all configured plugins from phpsysinfo.ini (file must be included and processed before calling this function)
|
||
|
|
*
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public static function getPlugins()
|
||
|
|
{
|
||
|
|
if (defined('PSI_PLUGINS') && is_string(PSI_PLUGINS)) {
|
||
|
|
if (preg_match(ARRAY_EXP, PSI_PLUGINS)) {
|
||
|
|
return eval(strtolower(PSI_PLUGINS));
|
||
|
|
} else {
|
||
|
|
return array(strtolower(PSI_PLUGINS));
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
return array();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|