<?php
/**
 * Darwin System Class
 *
 * PHP version 5
 *
 * @category  PHP
 * @package   PSI Darwin OS class
 * @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.Darwin.inc.php 638 2012-08-24 09:40:48Z namiltd $
 * @link      http://phpsysinfo.sourceforge.net
 */
 /**
 * Darwin sysinfo class
 * get all the required information from Darwin system
 * information may be incomplete
 *
 * @category  PHP
 * @package   PSI Darwin OS class
 * @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 Darwin extends BSDCommon
{
    /**
     * define the regexp for log parser
     */
    /* public function __construct()
    {
        parent::__construct();
        $this->error->addWarning("The Darwin version of phpSysInfo is a work in progress, some things currently don't work!");
        $this->setCPURegExp1("CPU: (.*) \((.*)-MHz (.*)\)");
        $this->setCPURegExp2("/(.*) ([0-9]+) ([0-9]+) ([0-9]+) ([0-9]+)/");
        $this->setSCSIRegExp1("^(.*): <(.*)> .*SCSI.*device");
    } */

    /**
     * get a value from sysctl command
     *
     * @param string $key key of the value to get
     *
     * @return string
     */
    protected function grabkey($key)
    {
        if (CommonFunctions::executeProgram('sysctl', $key, $s, PSI_DEBUG)) {
            $s = preg_replace('/'.$key.': /', '', $s);
            $s = preg_replace('/'.$key.' = /', '', $s);

            return $s;
        } else {
            return '';
        }
    }

    /**
     * get a value from ioreg command
     *
     * @param string $key key of the value to get
     *
     * @return string
     */
    private function _grabioreg($key)
    {
        if (CommonFunctions::executeProgram('ioreg', '-c "'.$key.'"', $s, PSI_DEBUG)) {
            /* delete newlines */
            $s = preg_replace("/\s+/", " ", $s);
            /* new newlines */
            $s = preg_replace("/[\|\t ]*\+\-\o/", "\n", $s);
            /* combine duplicate whitespaces and some chars */
            $s = preg_replace("/[\|\t ]+/", " ", $s);

            $lines = preg_split("/\n/", $s, -1, PREG_SPLIT_NO_EMPTY);
            $out = "";
            foreach ($lines as $line) {
               if (preg_match('/^([^<]*) <class '.$key.',/', $line)) {
                    $out .= $line."\n";
               }
            }

            return $out;
        } else {
            return '';
        }
    }

    /**
     * UpTime
     * time the system is running
     *
     * @return void
     */
    private function _uptime()
    {
        if (CommonFunctions::executeProgram('sysctl', '-n kern.boottime', $a, PSI_DEBUG)) {
            $tmp = explode(" ", $a);
            if ($tmp[0]=="{") { /* kern.boottime= { sec = 1096732600, usec = 885425 } Sat Oct 2 10:56:40 2004 */
              $data = trim($tmp[3],",");
              $this->sys->setUptime(time() - $data);
            } else { /* kern.boottime= 1096732600 */
              $this->sys->setUptime(time() - $a);
            }
        }
    }

    /**
     * get CPU information
     *
     * @return void
     */
    protected function cpuinfo()
    {
        $dev = new CpuDevice();
        if (CommonFunctions::executeProgram('hostinfo', '| grep "Processor type"', $buf, PSI_DEBUG)) {
            $dev->setModel(preg_replace('/Processor type: /', '', $buf));
            $buf=$this->grabkey('hw.model');
            if (CommonFunctions::rfts(APP_ROOT.'/data/ModelTranslation.txt', $buffer)) {
                $buffer = preg_split("/\n/", $buffer, -1, PREG_SPLIT_NO_EMPTY);
                foreach ($buffer as $line) {
                    $ar_buf = preg_split("/:/", $line, 2);
                    if (trim($buf) === trim($ar_buf[0])) {
                        $dev->setModel(trim($ar_buf[1]));
                    }
                }
            }
            $buf=$this->grabkey('machdep.cpu.brand_string');
            if ( !is_null($buf) && (trim($buf) != "")  ) {
                $dev->setModel(trim($buf));
            }
            $buf=$this->grabkey('machdep.cpu.features');
            if ( !is_null($buf) && (trim($buf) != "")  ) {
                if (preg_match("/ VMX/",$buf)) {
                    $dev->setVirt("vmx");
                } elseif (preg_match("/ SVM/",$buf)) {
                    $dev->setVirt("svm");
                }
            }
        }
        $dev->setCpuSpeed(round($this->grabkey('hw.cpufrequency') / 1000000));
        $dev->setBusSpeed(round($this->grabkey('hw.busfrequency') / 1000000));
        $bufn=$this->grabkey('hw.cpufrequency_min');
        $bufx=$this->grabkey('hw.cpufrequency_max');
        if ( !is_null($bufn) && (trim($bufn) != "") && !is_null($bufx) && (trim($bufx) != "") && ($bufn != $bufx)) {
            $dev->setCpuSpeedMin(round($bufn / 1000000));
            $dev->setCpuSpeedMax(round($bufx / 1000000));
        }
        $buf=$this->grabkey('hw.l2cachesize');
        if ( !is_null($buf) && (trim($buf) != "") ) {
            $dev->setCache(round($buf));
        }
        $ncpu = $this->grabkey('hw.ncpu');
        if ( is_null($ncpu) || (trim($ncpu) == "") || (!($ncpu >= 1)) )
            $ncpu = 1;
        for ($ncpu ; $ncpu > 0 ; $ncpu--) {
            $this->sys->setCpus($dev);
        }
    }

    /**
     * get the pci device information out of ioreg
     *
     * @return void
     */
    protected function pci()
    {
        $s = $this->_grabioreg('IOPCIDevice');
        $lines = preg_split("/\n/", $s, -1, PREG_SPLIT_NO_EMPTY);
        foreach ($lines as $line) {
                    $dev = new HWDevice();
                    if (!preg_match('/"IOName" = "([^"]*)"/', $line, $ar_buf ))
                       $ar_buf = preg_split("/[\s@]+/", $line, 19);
                    $dev->setName(trim($ar_buf[1]));
                    $this->sys->setPciDevices($dev);
        }
    }

    /**
     * get the ide device information out of ioreg
     *
     * @return void
     */
    protected function ide()
    {
        $s = $this->_grabioreg('IOATABlockStorageDevice');
        $lines = preg_split("/\n/", $s, -1, PREG_SPLIT_NO_EMPTY);
        foreach ($lines as $line) {
                    $dev = new HWDevice();
                    if (!preg_match('/"Product Name"="([^"]*)"/', $line, $ar_buf ))
                       $ar_buf = preg_split("/[\s]+/", $line, 19);
                    $dev->setName(trim($ar_buf[1]));
                    $this->sys->setIdeDevices($dev);
        }

        $s = $this->_grabioreg('IOAHCIBlockStorageDevice');
        $lines = preg_split("/\n/", $s, -1, PREG_SPLIT_NO_EMPTY);
        foreach ($lines as $line) {
                    $dev = new HWDevice();
                    if (!preg_match('/"Product Name"="([^"]*)"/', $line, $ar_buf ))
                       $ar_buf = preg_split("/[\s]+/", $line, 19);
                    $dev->setName(trim($ar_buf[1]));
                    $this->sys->setIdeDevices($dev);
        }
    }

    /**
     * get the usb device information out of ioreg
     *
     * @return void
     */
    protected function usb()
    {
        $s = $this->_grabioreg('IOUSBDevice');
        $lines = preg_split("/\n/", $s, -1, PREG_SPLIT_NO_EMPTY);
        foreach ($lines as $line) {
                    $dev = new HWDevice();
                    if (!preg_match('/"USB Product Name"="([^"]*)"/', $line, $ar_buf ))
                       $ar_buf = preg_split("/[\s]+/", $line, 19);
                    $dev->setName(trim($ar_buf[1]));
                    $this->sys->setUsbDevices($dev);
        }
    }

    /**
     * get the scsi device information out of ioreg
     *
     * @return void
     */
    protected function scsi()
    {
        $s = $this->_grabioreg('IOBlockStorageServices');
        $lines = preg_split("/\n/", $s, -1, PREG_SPLIT_NO_EMPTY);
        foreach ($lines as $line) {
                    $dev = new HWDevice();
                    if (!preg_match('/"Product Name"="([^"]*)"/', $line, $ar_buf ))
                       $ar_buf = preg_split("/[\s]+/", $line, 19);
                    $dev->setName(trim($ar_buf[1]));
                    $this->sys->setScsiDevices($dev);
        }
    }

    /**
     * get memory and swap information
     *
     * @return void
     */
    protected function memory()
    {
        $s = $this->grabkey('hw.memsize');
        if (CommonFunctions::executeProgram('vm_stat', '', $pstat, PSI_DEBUG)) {
            // calculate free memory from page sizes (each page = 4MB)
            if ( (preg_match('/^Pages free:\s+(\S+)/m', $pstat, $free_buf ))
              && (preg_match('/^Pages speculative:\s+(\S+)/m', $pstat, $spec_buf )) ) {

                $this->sys->setMemFree(($free_buf[1]+$spec_buf[1]) * 4 * 1024);

                $appMemory = 0;
                if (preg_match('/^Pages wired down:\s+(\S+)/m', $pstat, $wire_buf)) {
                    $appMemory += $wire_buf[1] * 4 * 1024;
                }
                if (preg_match('/^Pages active:\s+(\S+)/m', $pstat, $active_buf)) {
                    $appMemory += $active_buf[1] * 4 * 1024;
                }
                $this->sys->setMemApplication($appMemory);

                if (preg_match('/^Pages inactive:\s+(\S+)/m', $pstat, $inactive_buf)) {
                    $this->sys->setMemCache($inactive_buf[1] * 4 * 1024);
                }

                $this->sys->setMemBuffer(0);
            } else {
                $lines = preg_split("/\n/", $pstat, -1, PREG_SPLIT_NO_EMPTY);
                $ar_buf = preg_split("/\s+/", $lines[1], 19);
                $this->sys->setMemFree($ar_buf[2] * 4 * 1024);
            }

            $this->sys->setMemTotal($s);
            $this->sys->setMemUsed($this->sys->getMemTotal() - $this->sys->getMemFree());

            if (CommonFunctions::executeProgram('sysctl', 'vm.swapusage | colrm 1 22', $swapBuff, PSI_DEBUG)) {
                $swap1 = preg_split('/M/', $swapBuff);
                $swap2 = preg_split('/=/', $swap1[1]);
                $swap3 = preg_split('/=/', $swap1[2]);
                $dev = new DiskDevice();
                $dev->setName('SWAP');
                $dev->setMountPoint('SWAP');
                $dev->setFsType('swap');
                $dev->setTotal($swap1[0] * 1024 * 1024);
                $dev->setUsed($swap2[1] * 1024 * 1024);
                $dev->setFree($swap3[1] * 1024 * 1024);
                $this->sys->setSwapDevices($dev);
            }
        }
    }

    /**
     * get network information
     *
     * @return void
     */
    private function _network()
    {
        if (CommonFunctions::executeProgram('netstat', '-nbdi | cut -c1-24,42- | grep Link', $netstat, PSI_DEBUG)) {
            $lines = preg_split("/\n/", $netstat, -1, PREG_SPLIT_NO_EMPTY);
            foreach ($lines as $line) {
                $ar_buf = preg_split("/\s+/", $line, 10);
                if (! empty($ar_buf[0])) {
                    $dev = new NetDevice();
                    $dev->setName($ar_buf[0]);
                    $dev->setTxBytes($ar_buf[8]);
                    $dev->setRxBytes($ar_buf[5]);
                    $dev->setErrors($ar_buf[4] + $ar_buf[7]);
                    if (isset($ar_buf[10])) {
                        $dev->setDrops($ar_buf[10]);
                    }
                    if (defined('PSI_SHOW_NETWORK_INFOS') && (PSI_SHOW_NETWORK_INFOS) && (CommonFunctions::executeProgram('ifconfig', $ar_buf[0].' 2>/dev/null', $bufr2, PSI_DEBUG))) {
                        $bufe2 = preg_split("/\n/", $bufr2, -1, PREG_SPLIT_NO_EMPTY);
                        foreach ($bufe2 as $buf2) {
                            if (preg_match('/^\s+ether\s+(\S+)/i', $buf2, $ar_buf2))
                                $dev->setInfo(($dev->getInfo()?$dev->getInfo().';':'').preg_replace('/:/', '-', $ar_buf2[1]));
                            elseif (preg_match('/^\s+inet\s+(\S+)\s+netmask/i', $buf2, $ar_buf2))
                                $dev->setInfo(($dev->getInfo()?$dev->getInfo().';':'').$ar_buf2[1]);
                            elseif ((preg_match('/^\s+inet6\s+([^\s%]+)\s+prefixlen/i', $buf2, $ar_buf2)
                                  || preg_match('/^\s+inet6\s+([^\s%]+)%\S+\s+prefixlen/i', $buf2, $ar_buf2))
                                  && !preg_match('/^fe80::/i',$ar_buf2[1]))
                                $dev->setInfo(($dev->getInfo()?$dev->getInfo().';':'').$ar_buf2[1]);
                        }
                    }
                    $this->sys->setNetDevices($dev);
                }
            }
        }
    }

    /**
     * get icon name
     *
     * @return void
     */
    protected function distro()
    {
        $this->sys->setDistributionIcon('Darwin.png');
        if (!CommonFunctions::executeProgram('system_profiler', 'SPSoftwareDataType', $buffer, PSI_DEBUG)) {
            parent::distro();
        } else {
            $arrBuff = preg_split("/\n/", $buffer, -1, PREG_SPLIT_NO_EMPTY);
            foreach ($arrBuff as $line) {
                $arrLine = preg_split("/:/", $line, -1, PREG_SPLIT_NO_EMPTY);
                if (trim($arrLine[0]) === "System Version") {
                    $distro = trim($arrLine[1]);

                    if (preg_match('/(^Mac OS)|(^OS X)/', $distro)) {
                        $this->sys->setDistributionIcon('Apple.png');
                    }

                    $this->sys->setDistribution($distro);

                    return;
                }
            }
        }
    }

    /**
     * get the information
     *
     * @see PSI_Interface_OS::build()
     *
     * @return Void
     */
    public function build()
    {
        parent::build();
        $this->_uptime();
        $this->_network();
    }
}
