partkeepr

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OperatingSystem.php (2873B)

      1 <?php
      2 
      3 namespace PartKeepr\CoreBundle\System;
      4 
      5 class OperatingSystem
      6 {
      7     /**
      8      * Returns the platform name the system is running on.
      9      *
     10      * Typical return values are: "Linux", "FreeBSD", "Darwin" (Mac OSX),
     11      * "Windows".
     12      */
     13     public function getPlatform()
     14     {
     15         if (function_exists('posix_uname')) {
     16             $data = posix_uname();
     17 
     18             if (array_key_exists('sysname', $data)) {
     19                 return $data['sysname'];
     20             }
     21         }
     22 
     23         if (\PHP_OS == 'WINNT') {
     24             return 'Windows';
     25         }
     26 
     27         return 'unknown';
     28     }
     29 
     30     /**
     31      * Returns the distribution.
     32      *
     33      * @return string string
     34      */
     35     public function getRelease()
     36     {
     37         switch (strtolower($this->getPlatform())) {
     38             case 'freebsd':
     39                 /*
     40                  * Unfortunately, there's no text file on FreeBSD which tells us the release
     41                  * number. Thus, we hope that "release" within posix_uname() is defined.
     42                  */
     43                 if (function_exists('posix_uname')) {
     44                     $data = posix_uname();
     45 
     46                     if (array_key_exists('release', $data)) {
     47                         return $data['release'];
     48                     }
     49                 }
     50                 break;
     51             case 'darwin':
     52                 /*
     53                  * Mac stores its version number in a public readable plist file, which
     54                  * is in XML format.
     55                  */
     56                 $document = new \DomDocument();
     57                 $document->load('/System/Library/CoreServices/SystemVersion.plist');
     58                 $xpath = new \DOMXPath($document);
     59                 $entries = $xpath->query('/plist/dict/*');
     60 
     61                 $previous = '';
     62                 foreach ($entries as $entry) {
     63                     if (strpos($previous, 'ProductVersion') !== false) {
     64                         return $entry->textContent;
     65                     }
     66                     $previous = $entry->textContent;
     67                 }
     68                 break;
     69             case 'linux':
     70                 return $this->getLinuxDistribution();
     71                 break;
     72             default:
     73                 break;
     74         }
     75 
     76         return 'unknown';
     77     }
     78 
     79     /**
     80      * Tries to detect the distribution.
     81      *
     82      * Currently, we only execute lsb_release to find out the version number.
     83      * As I don't have any other distributions at hand to test with, I rely
     84      * on user feedback which distributions don't have lsb_release.
     85      *
     86      * @return string
     87      */
     88     public function getLinuxDistribution()
     89     {
     90         /* Try executing lsb_release */
     91         $release = @exec('lsb_release -d -s', $void, $retval);
     92 
     93         if ($retval === 0 && $release !== '') {
     94             return $release;
     95         }
     96 
     97         //@todo we need better handling here
     98         return 'unknown';
     99     }
    100 }