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<?php 
// phpSysInfo - A PHP System Information Script
// http://phpsysinfo.sourceforge.net/
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
// $Id: class.Linux.inc.php,v 1.88 2007/02/25 20:50:52 bigmichi1 Exp $

if (!defined('IN_PHPSYSINFO')) {
    die("No Hacking");
}

require_once(APP_ROOT . '/includes/os/class.BSD.common.inc.php');

class sysinfo {
        var $inifile = "distros.ini";
        var $icon = "unknown.png";
        var $distro = "unknown";
        var $parser;
        
        // get the distro name and icon when create the sysinfo object
        function sysinfo() {
                $this->parser = new Parser();
                $this->parser->df_param = 'P';
                
                $list = @parse_ini_file(APP_ROOT . "/" . $this->inifile, true);
                if (!$list) {
                        return;
                }
                
                $distro_info = execute_program('lsb_release','-a 2> /dev/null', false);  // We have the '2> /dev/null' because Ubuntu gives an error on this command which causes the distro to be unknown
                if ( $distro_info != 'ERROR') {
                        $distro_tmp = explode("\n",$distro_info);
                        foreach( $distro_tmp as $info ) {
                                $info_tmp = explode(':', $info, 2);
                                $distro[ $info_tmp[0] ] = trim($info_tmp[1]);
                        }
                        if( !isset( $list[$distro['Distributor ID']] ) ){
                                return;
                        }
                        $this->icon = isset($list[$distro['Distributor ID']]["Image"]) ? $list[$distro['Distributor ID']]["Image"] : $this->icon;
                        $this->distro = $distro['Description'];
                } else {  // Fall back in case 'lsb_release' does not exist ;)
                        foreach ($list as $section => $distribution) {
                                if (!isset($distribution["Files"])) {
                                        continue;
                                } else {
                                        foreach (explode(";", $distribution["Files"]) as $filename) {
                                                if (file_exists($filename)) {
                                                        $buf = rfts( $filename );
                                                        $this->icon = isset($distribution["Image"]) ? $distribution["Image"] : $this->icon;
                                                        $this->distro = isset($distribution["Name"]) ? $distribution["Name"] . " " . trim($buf) : trim($buf);
                                                        break 2;
                                                }
                                        }
                                }
                        }
                }
        }
  
  // get our apache SERVER_NAME or vhost
  function vhostname () {
    if (! ($result = getenv('SERVER_NAME'))) {
      $result = 'N.A.';
    } 
    return $result;
  } 
  // get the IP address of our vhost name
  function vip_addr () {
    return gethostbyname($this->vhostname());
  }
  // get our canonical hostname
  function chostname () {
    $result = rfts( '/proc/sys/kernel/hostname', 1 );
    if ( $result == "ERROR" ) {
      $result = "N.A.";
    }
    //else {
    //  $result = gethostbyaddr( gethostbyname( trim( $result ) ) );
    //} 
    return $result;
  } 
  // get the IP address of our canonical hostname
  function ip_addr () {
    if (!($result = getenv('SERVER_ADDR'))) {
      $result = gethostbyname($this->chostname());
    } 
    return $result;
  } 

  function kernel () {
    $buf = rfts( '/proc/version', 1 );
    if ( $buf == "ERROR" ) {
      $result = "N.A.";
    } else {
      if (preg_match('/version (.*?) /', $buf, $ar_buf)) {
        $result = $ar_buf[1];

        if (preg_match('/SMP/', $buf)) {
          $result .= ' (SMP)';
        } 
      } 
    } 
    return $result;
  } 
  
  function uptime () {
    $buf = rfts( '/proc/uptime', 1 );
    $ar_buf = explode( ' ', $buf );
    $result = trim( $ar_buf[0] );

    return $result;
  } 

  function users () {
                $strResult = 0;
                $strBuf = execute_program('who', '-q');
                if( $strBuf != "ERROR" ) {
                        $arrWho = explode( '=', $strBuf );
                        $strResult = $arrWho[1];
                }
                return $strResult;
  }
  
  function loadavg ($bar = false) {
    $buf = rfts( '/proc/loadavg' );
    if( $buf == "ERROR" ) {
      $results['avg'] = array('N.A.', 'N.A.', 'N.A.');
    } else {
      $results['avg'] = preg_split("/\s/", $buf, 4);
      unset($results['avg'][3]);        // don't need the extra values, only first three
    } 
    if ($bar) {
      $buf = rfts( '/proc/stat', 1 );
      if( $buf != "ERROR" ) {
        sscanf($buf, "%*s %Ld %Ld %Ld %Ld", $ab, $ac, $ad, $ae);
        // Find out the CPU load
        // user + sys = load 
        // total = total
        $load = $ab + $ac + $ad;        // cpu.user + cpu.sys
        $total = $ab + $ac + $ad + $ae; // cpu.total

        // we need a second value, wait 1 second befor getting (< 1 second no good value will occour)
        sleep(1);
        $buf = rfts( '/proc/stat', 1 );
        sscanf($buf, "%*s %Ld %Ld %Ld %Ld", $ab, $ac, $ad, $ae);
        $load2 = $ab + $ac + $ad;
        $total2 = $ab + $ac + $ad + $ae;
        $results['cpupercent'] = (100*($load2 - $load)) / ($total2 - $total);
      }
    }
    return $results;
  } 

        function cpu_info () {
                $bufr = rfts( '/proc/cpuinfo' );
                $results = array("cpus" => 0);
                
                if ( $bufr != "ERROR" ) {
                        $bufe = explode("\n", $bufr);
                        
                        $results = array('cpus' => 0, 'bogomips' => 0);
                        $ar_buf = array();
                        
                        foreach( $bufe as $buf ) {
                                $arrBuff = preg_split('/\s+:\s+/', trim($buf));
                                if( count( $arrBuff ) == 2 ) {
                                        $key = $arrBuff[0];
                                        $value = $arrBuff[1];
                                        // All of the tags here are highly architecture dependant.
                                        // the only way I could reconstruct them for machines I don't
                                        // have is to browse the kernel source.  So if your arch isn't
                                        // supported, tell me you want it written in.
                                        switch ($key) {
                                                case 'model name':
                                                        $results['model'] = $value;
                                                        break;
                                                case 'cpu MHz':
                                                        $results['cpuspeed'] = sprintf('%.2f', $value);
                                                        break;
                                                case 'cycle frequency [Hz]': // For Alpha arch - 2.2.x
                                                        $results['cpuspeed'] = sprintf('%.2f', $value / 1000000);
                                                        break;
                                                case 'clock': // For PPC arch (damn borked POS)
                                                        $results['cpuspeed'] = sprintf('%.2f', $value);
                                                        break;
                                                case 'cpu': // For PPC arch (damn borked POS)
                                                        $results['model'] = $value;
                                                        break;
                                                case 'L2 cache': // More for PPC
                                                        $results['cache'] = $value;
                                                        break;
                                                case 'revision': // For PPC arch (damn borked POS)
                                                        $results['model'] .= ' ( rev: ' . $value . ')';
                                                        break;
                                                case 'cpu model': // For Alpha arch - 2.2.x
                                                        $results['model'] .= ' (' . $value . ')';
                                                        break;
                                                case 'cache size':
                                                        $results['cache'] = $value;
                                                        break;
                                                case 'bogomips':
                                                        $results['bogomips'] += $value;
                                                        break;
                                                case 'BogoMIPS': // For alpha arch - 2.2.x
                                                        $results['bogomips'] += $value;
                                                        break;
                                                case 'BogoMips': // For sparc arch
                                                        $results['bogomips'] += $value;
                                                        break;
                                                case 'cpus detected': // For Alpha arch - 2.2.x
                                                        $results['cpus'] += $value;
                                                        break;
                                                case 'system type': // Alpha arch - 2.2.x
                                                        $results['model'] .= ', ' . $value . ' ';
                                                        break;
                                                case 'platform string': // Alpha arch - 2.2.x
                                                        $results['model'] .= ' (' . $value . ')';
                                                        break;
                                                case 'processor':
                                                        $results['cpus'] += 1;
                                                        break;
                                                case 'Cpu0ClkTck': // Linux sparc64
                                                        $results['cpuspeed'] = sprintf('%.2f', hexdec($value) / 1000000);
                                                        break;
                                                case 'Cpu0Bogo': // Linux sparc64 & sparc32
                                                        $results['bogomips'] = $value;
                                                        break;
                                                case 'ncpus probed': // Linux sparc64 & sparc32
                                                        $results['cpus'] = $value;
                                                        break;
                                        }
                                }
                        }
                
                        // sparc64 specific code follows
                        // This adds the ability to display the cache that a CPU has
                        // Originally made by Sven Blumenstein <bazik@gentoo.org> in 2004
                        // Modified by Tom Weustink <freshy98@gmx.net> in 2004
                        $sparclist = array('SUNW,UltraSPARC@0,0', 'SUNW,UltraSPARC-II@0,0', 'SUNW,UltraSPARC@1c,0', 'SUNW,UltraSPARC-IIi@1c,0', 'SUNW,UltraSPARC-II@1c,0', 'SUNW,UltraSPARC-IIe@0,0');
                        foreach ($sparclist as $name) {
                                $buf = rfts( '/proc/openprom/' . $name . '/ecache-size',1 , 32, false );
                                if( $buf != "ERROR" ) {
                                        $results['cache'] = base_convert($buf, 16, 10)/1024 . ' KB';
                                }
                        }
                        // sparc64 specific code ends
        
                        // XScale detection code
                        if ( $results['cpus'] == 0 ) {
                                foreach( $bufe as $buf ) {
                                        $fields = preg_split('/\s*:\s*/', trim($buf), 2);
                                        if (sizeof($fields) == 2) {
                                                list($key, $value) = $fields;
                                                switch($key) {
                                                        case 'Processor':
                                                                $results['cpus'] += 1;
                                                                $results['model'] = $value;
                                                                break;
                                                        case 'BogoMIPS': //BogoMIPS are not BogoMIPS on this CPU, it's the speed, no BogoMIPS available
                                                                $results['cpuspeed'] = $value;
                                                                break;
                                                        case 'I size':
                                                                $results['cache'] = $value;
                                                                break;
                                                        case 'D size':
                                                                $results['cache'] += $value;
                                                                break;
                                                }
                                        }
                                }
                                $results['cache'] = $results['cache'] / 1024 . " KB";
                        }
                }               
                $keys = array_keys($results);
                $keys2be = array('model', 'cpuspeed', 'cache', 'bogomips', 'cpus');
                
                while ($ar_buf = each($keys2be)) {
                        if (! in_array($ar_buf[1], $keys)) {
                                $results[$ar_buf[1]] = 'N.A.';
                        } 
                }
                
                $buf = rfts( '/proc/acpi/thermal_zone/THRM/temperature', 1, 4096, false );
                if ( $buf != "ERROR" ) {
                        $results['temp'] = substr( $buf, 25, 2 );
                }
                
                return $results;
        }

        function pci () {
                $arrResults = array();
                $booDevice = false;
                
                if( ! $arrResults = $this->parser->parse_lspci() ) {
                        $strBuf = rfts( '/proc/pci', 0, 4096, false );
                        if( $strBuf != "ERROR" ) {
                                $arrBuf = explode( "\n", $strBuf );
                                foreach( $arrBuf as $strLine ) {
                                        if( preg_match( '/Bus/', $strLine ) ) {
                                                $booDevice = true;
                                                continue;
                                        }
                                        if( $booDevice ) {
                                                list( $strKey, $strValue ) = explode( ': ', $strLine, 2 );
                                                if( ! preg_match( '/bridge/i', $strKey ) && ! preg_match( '/USB/i ', $strKey ) ) {
                                                        $arrResults[] = preg_replace( '/\([^\)]+\)\.$/', '', trim( $strValue ) );
                                                }
                                                $booDevice = false;
                                        }
                                }
                                asort( $arrResults );
                        }
                }
                return $arrResults;
        } 

  function ide () {
    $results = array();
    $bufd = gdc( '/proc/ide', false );

    foreach( $bufd as $file ) {
      if (preg_match('/^hd/', $file)) {
        $results[$file] = array(); 
        $buf = rfts("/proc/ide/" . $file . "/media", 1 );
        if ( $buf != "ERROR" ) {
          $results[$file]['media'] = trim($buf);
          if ($results[$file]['media'] == 'disk') {
            $results[$file]['media'] = 'Hard Disk';
            $buf = rfts( "/proc/ide/" . $file . "/capacity", 1, 4096, false);
            if( $buf == "ERROR" ) {
                $buf = rfts( "/sys/block/" . $file . "/size", 1, 4096, false);
            }
            if ( $buf != "ERROR" ) {
                $results[$file]['capacity'] = trim( $buf );
            } 
          } elseif ($results[$file]['media'] == 'cdrom') {
            $results[$file]['media'] = 'CD-ROM';
            unset($results[$file]['capacity']);
          } 
        } else {
                unset($results[$file]);
        } 

        $buf = rfts( "/proc/ide/" . $file . "/model", 1 );
        if ( $buf != "ERROR" ) {
          $results[$file]['model'] = trim( $buf );
          if (preg_match('/WDC/', $results[$file]['model'])) {
            $results[$file]['manufacture'] = 'Western Digital';
          } elseif (preg_match('/IBM/', $results[$file]['model'])) {
            $results[$file]['manufacture'] = 'IBM';
          } elseif (preg_match('/FUJITSU/', $results[$file]['model'])) {
            $results[$file]['manufacture'] = 'Fujitsu';
          } else {
            $results[$file]['manufacture'] = 'Unknown';
          } 
        } 
        
      } 
    } 

    asort($results);
    return $results;
  } 

  function scsi () {
    $results = array();
    $dev_vendor = '';
    $dev_model = '';
    $dev_rev = '';
    $dev_type = '';
    $s = 1;
    $get_type = 0;

    $bufr = execute_program('lsscsi', '-c', false);
    if( $bufr == "ERROR" ) {
        $bufr = rfts( '/proc/scsi/scsi', 0, 4096, false);
    }
    if ( $bufr != "ERROR" ) {
      $bufe = explode("\n", $bufr);
      foreach( $bufe as $buf ) {
        if (preg_match('/Vendor/', $buf)) {
          preg_match('/Vendor: (.*) Model: (.*) Rev: (.*)/i', $buf, $dev);
          list($key, $value) = explode(': ', $buf, 2);
          $dev_str = $value;
          $get_type = true;
          continue;
        } 

        if ($get_type) {
          preg_match('/Type:\s+(\S+)/i', $buf, $dev_type);
          $results[$s]['model'] = "$dev[1] $dev[2] ($dev_type[1])";
          $results[$s]['media'] = "Hard Disk";
          $s++;
          $get_type = false;
        } 
      } 
    } 
    asort($results);
    return $results;
  } 

  function usb () {
    $results = array();
    $devnum = -1;

    $bufr = execute_program('lsusb', '', false);
    if( $bufr == "ERROR" ) {
        $bufr = rfts( '/proc/bus/usb/devices', 0, 4096, false );
        if ( $bufr != "ERROR" ) {
            $bufe = explode("\n", $bufr);
            foreach( $bufe as $buf ) {
                if (preg_match('/^T/', $buf)) {
                    $devnum += 1;
                    $results[$devnum] = "";
                } elseif (preg_match('/^S:/', $buf)) {
                    list($key, $value) = explode(': ', $buf, 2);
                    list($key, $value2) = explode('=', $value, 2);
                    if (trim($key) != "SerialNumber") {
                        $results[$devnum] .= " " . trim($value2);
                        $devstring = 0;
                    }
                } 
            }
        } 
    } else {
        $bufe = explode( "\n", $bufr );
        foreach( $bufe as $buf ) {
            $device = preg_split("/ /", $buf, 7);
            if( isset( $device[6] ) && trim( $device[6] ) != "" ) {
                $results[$devnum++] = trim( $device[6] );
            }
        }
    }
    return $results;
  } 

  function sbus () {
    $results = array();
    $_results[0] = ""; 
    // TODO. Nothing here yet. Move along.
    $results = $_results;
    return $results;
  } 

  function network () {
    $results = array();

    $bufr = rfts( '/proc/net/dev' );
    if ( $bufr != "ERROR" ) {
      $bufe = explode("\n", $bufr);
      foreach( $bufe as $buf ) {
        if (preg_match('/:/', $buf)) {
          list($dev_name, $stats_list) = preg_split('/:/', $buf, 2);
          $stats = preg_split('/\s+/', trim($stats_list));
          $results[$dev_name] = array();

          $results[$dev_name]['rx_bytes'] = $stats[0];
          $results[$dev_name]['rx_packets'] = $stats[1];
          $results[$dev_name]['rx_errs'] = $stats[2];
          $results[$dev_name]['rx_drop'] = $stats[3];

          $results[$dev_name]['tx_bytes'] = $stats[8];
          $results[$dev_name]['tx_packets'] = $stats[9];
          $results[$dev_name]['tx_errs'] = $stats[10];
          $results[$dev_name]['tx_drop'] = $stats[11];

          $results[$dev_name]['errs'] = $stats[2] + $stats[10];
          $results[$dev_name]['drop'] = $stats[3] + $stats[11];
        } 
      }
    }
    return $results;
  } 

  function memory () {
    $results['ram'] = array('total' => 0, 'free' => 0, 'used' => 0, 'percent' => 0);
    $results['swap'] = array('total' => 0, 'free' => 0, 'used' => 0, 'percent' => 0);
    $results['devswap'] = array();

    $bufr = rfts( '/proc/meminfo' );
    if ( $bufr != "ERROR" ) {
      $bufe = explode("\n", $bufr);
      foreach( $bufe as $buf ) {
        if (preg_match('/^MemTotal:\s+(.*)\s*kB/i', $buf, $ar_buf)) {
          $results['ram']['total'] = $ar_buf[1];
        } else if (preg_match('/^MemFree:\s+(.*)\s*kB/i', $buf, $ar_buf)) {
          $results['ram']['free'] = $ar_buf[1];
        } else if (preg_match('/^Cached:\s+(.*)\s*kB/i', $buf, $ar_buf)) {
          $results['ram']['cached'] = $ar_buf[1];
        } else if (preg_match('/^Buffers:\s+(.*)\s*kB/i', $buf, $ar_buf)) {
          $results['ram']['buffers'] = $ar_buf[1];
        } 
      } 

      $results['ram']['used'] = $results['ram']['total'] - $results['ram']['free'];
      $results['ram']['percent'] = round(($results['ram']['used'] * 100) / $results['ram']['total']);
      
      // values for splitting memory usage
      if (isset($results['ram']['cached']) && isset($results['ram']['buffers'])) {
        $results['ram']['app'] = $results['ram']['used'] - $results['ram']['cached'] - $results['ram']['buffers'];
        $results['ram']['app_percent'] = round(($results['ram']['app'] * 100) / $results['ram']['total']);
        $results['ram']['buffers_percent'] = round(($results['ram']['buffers'] * 100) / $results['ram']['total']);
        $results['ram']['cached_percent'] = round(($results['ram']['cached'] * 100) / $results['ram']['total']);
      }

      $bufr = rfts( '/proc/swaps' );
      if ( $bufr != "ERROR" ) {
        $swaps = explode("\n", $bufr);
        for ($i = 1; $i < (sizeof($swaps)); $i++) {
          if( trim( $swaps[$i] ) != "" ) {
            $ar_buf = preg_split('/\s+/', $swaps[$i], 6);
            $results['devswap'][$i - 1] = array();
            $results['devswap'][$i - 1]['dev'] = $ar_buf[0];
            $results['devswap'][$i - 1]['total'] = $ar_buf[2];
            $results['devswap'][$i - 1]['used'] = $ar_buf[3];
            $results['devswap'][$i - 1]['free'] = ($results['devswap'][$i - 1]['total'] - $results['devswap'][$i - 1]['used']);
            $results['devswap'][$i - 1]['percent'] = round(($ar_buf[3] * 100) / $ar_buf[2]);
            $results['swap']['total'] += $ar_buf[2];
            $results['swap']['used'] += $ar_buf[3];
            $results['swap']['free'] = $results['swap']['total'] - $results['swap']['used'];
            $results['swap']['percent'] = round(($results['swap']['used'] * 100) / $results['swap']['total']);
          }
        } 
      }
    }
    return $results;
  } 
  
  function filesystems () {
    return $this->parser->parse_filesystems();
  } 

  function distro () {
   return $this->distro;
  }

  function distroicon () {   
   return $this->icon;
  }

} 

?>