vendor/symfony/process/ExecutableFinder.php

   1 <?php
   2
   3 /*
   4  * This file is part of the Symfony package.
   5  *
   6  * (c) Fabien Potencier <fabien@symfony.com>
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11
  12 namespace Symfony\Component\Process;
  13
  14 /**
  15  * Generic executable finder.
  16  *
  17  * @author Fabien Potencier <fabien@symfony.com>
  18  * @author Johannes M. Schmitt <schmittjoh@gmail.com>
  19  */
  20 class ExecutableFinder
  21 {
  22     private $suffixes = array('.exe', '.bat', '.cmd', '.com');
  23
  24     /**
  25      * Replaces default suffixes of executable.
  26      */
  27     public function setSuffixes(array $suffixes)
  28     {
  29         $this->suffixes = $suffixes;
  30     }
  31
  32     /**
  33      * Adds new possible suffix to check for executable.
  34      *
  35      * @param string $suffix
  36      */
  37     public function addSuffix($suffix)
  38     {
  39         $this->suffixes[] = $suffix;
  40     }
  41
  42     /**
  43      * Finds an executable by name.
  44      *
  45      * @param string $name      The executable name (without the extension)
  46      * @param string $default   The default to return if no executable is found
  47      * @param array  $extraDirs Additional dirs to check into
  48      *
  49      * @return string The executable path or default value
  50      */
  51     public function find($name, $default = null, array $extraDirs = array())
  52     {
  53         if (ini_get('open_basedir')) {
  54             $searchPath = explode(PATH_SEPARATOR, ini_get('open_basedir'));
  55             $dirs = array();
  56             foreach ($searchPath as $path) {
  57                 // Silencing against https://bugs.php.net/69240
  58                 if (@is_dir($path)) {
  59                     $dirs[] = $path;
  60                 } else {
  61                     if (basename($path) == $name && @is_executable($path)) {
  62                         return $path;
  63                     }
  64                 }
  65             }
  66         } else {
  67             $dirs = array_merge(
  68                 explode(PATH_SEPARATOR, getenv('PATH') ?: getenv('Path')),
  69                 $extraDirs
  70             );
  71         }
  72
  73         $suffixes = array('');
  74         if ('\\' === DIRECTORY_SEPARATOR) {
  75             $pathExt = getenv('PATHEXT');
  76             $suffixes = array_merge($pathExt ? explode(PATH_SEPARATOR, $pathExt) : $this->suffixes, $suffixes);
  77         }
  78         foreach ($suffixes as $suffix) {
  79             foreach ($dirs as $dir) {
  80                 if (@is_file($file = $dir.DIRECTORY_SEPARATOR.$name.$suffix) && ('\\' === DIRECTORY_SEPARATOR || @is_executable($file))) {
  81                     return $file;
  82                 }
  83             }
  84         }
  85
  86         return $default;
  87     }
  88 }