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|
from core.module import Module
from core.vectors import PhpCode
class Procs(Module):
"""List running processes."""
aliases = [ 'ps' ]
def init(self):
self.register_info(
{
'author': [
'paddlesteamer'
],
'license': 'GPLv3'
}
)
def run(self, **kwargs):
return PhpCode("""
class UIDMap {
private $map = array();
public function __construct() {
$lines = @explode(PHP_EOL, file_get_contents('/etc/passwd'));
if (!$lines) return;
foreach ($lines as $line) {
$els = explode(':', $line);
$uname = $els[0];
if (strlen($uname) > 8) $uname = substr($uname, 0, 7) . '+';
$this->map[$els[2]] = $uname;
}
}
public function getUserName($uid) {
$uname = $this->map[$uid];
if (!$uname) return $uid;
return $uname;
}
}
function getTtyName($ttynr) {
$major = ($ttynr >> 8) & 0xffffffff ;
$minor = $ttynr & 0xff;
if ($major === 4) {
if ($minor < 64) return 'tty'.$minor;
return 'ttyS'.(255 - $minor);
} else if ($major >= 136 && $major <=143) {
return 'pts/'.$minor;
}
// unsupported tty
return '?';
}
function getProcInfo($procpath, $pid) {
global $uidmap;
$info = array(
'UID' => '?',
'PID' => '?',
'PPID' => '?',
'STIME' => '?',
'TTY' => '?',
'TIME' => '?',
'CMD' => '?'
);
$content = @file_get_contents(join(DIRECTORY_SEPARATOR, array($procpath, $pid, 'stat')));
if (!$content) return $info;
$stats = explode(' ', $content);
$info['PID'] = $stats[0];
$info['PPID'] = $stats[3];
// calculate stime and time
// since there is no way to call
// sysconf(_SC_CLK_TCK), let's use
// a workaround with filectime
$curtime = time();
$stime = @filemtime(join(DIRECTORY_SEPARATOR, array($procpath, $pid)));
if (date('j', $curtime) === date('j', $stime)) {
$info['STIME'] = date('H:i', $stime);
} else {
$info['STIME'] = date('Md', $stime);
}
$time = $curtime - $stime;
$hours = floor($time / 3600);
$minutes = floor(($time % 3600) / 60);
$seconds = $time % 60;
$info['TIME'] = sprintf("%'.02d:%'.02d:%'.02d", $hours, $minutes, $seconds);
$info['TTY'] = getTtyName($stats[6]);
// get cmd
$cmd = @file_get_contents(join(DIRECTORY_SEPARATOR, array($procpath, $pid, 'cmdline')));
if ($cmd && strlen($cmd) > 0) {
$cmd = @str_replace("\x00", ' ', $cmd);
} else {
$cmd = @str_replace('(', '[', str_replace(')', ']', $stats[1]));
}
$info['CMD'] = $cmd;
// get user
$content = @explode(PHP_EOL, file_get_contents(join(DIRECTORY_SEPARATOR, array($procpath, $pid, 'status'))));
foreach ($content as $line) {
$els = explode("\t", $line);
if ($els[0] !== 'Uid:') continue;
$info['UID'] = $uidmap->getUserName($els[1]);
break;
}
return $info;
}
function main() {
global $uidmap;
// check proc
$procpath = '/proc';
if (!file_exists('/proc')) {
$lines = @explode(PHP_EOL, file_get_contents('/etc/mtab'));
if (!$lines) {
print('Unable to list processes.' . PHP_EOL);
return;
}
foreach ($lines as $line) {
$els = explode(' ', $line);
if ($els[0] !== 'proc') continue;
$procpath = $els[1];
}
if ($procpath === '/proc') {
print('Unable to list processes.' . PHP_EOL);
return;
}
}
// init uidmap
$uidmap = new UIDMap();
$pids = @scandir($procpath);
$format = '%-8s %5s %5s %5s %-8s %10s %s' . PHP_EOL;
printf($format, 'UID', 'PID', 'PPID', 'STIME', 'TTY', 'TIME', 'CMD');
foreach ($pids as $pid) {
if (!is_numeric($pid)) continue;
$proc = getProcInfo($procpath, $pid);
printf($format, $proc['UID'], $proc['PID'], $proc['PPID'], $proc['STIME'], $proc['TTY'], $proc['TIME'], $proc['CMD']);
}
}
main();
""").run()
|
