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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Process;
/**
* Generic executable finder.
*
* @author Fabien Potencier <fabien@symfony.com>
* @author Johannes M. Schmitt <schmittjoh@gmail.com>
*/
class ExecutableFinder
{
private $suffixes = ['.exe', '.bat', '.cmd', '.com'];
/**
* Replaces default suffixes of executable.
*/
public function setSuffixes(array $suffixes)
{
$this->suffixes = $suffixes;
}
/**
* Adds new possible suffix to check for executable.
*/
public function addSuffix(string $suffix)
{
$this->suffixes[] = $suffix;
}
/**
* Finds an executable by name.
*
* @param string $name The executable name (without the extension)
* @param string|null $default The default to return if no executable is found
* @param array $extraDirs Additional dirs to check into
*
* @return string|null The executable path or default value
*/
public function find(string $name, string $default = null, array $extraDirs = [])
{
if (ini_get('open_basedir')) {
$searchPath = array_merge(explode(\PATH_SEPARATOR, ini_get('open_basedir')), $extraDirs);
$dirs = [];
foreach ($searchPath as $path) {
// Silencing against https://bugs.php.net/69240
if (@is_dir($path)) {
$dirs[] = $path;
} else {
if (basename($path) == $name && @is_executable($path)) {
return $path;
}
}
}
} else {
$dirs = array_merge(
explode(\PATH_SEPARATOR, getenv('PATH') ?: getenv('Path')),
$extraDirs
);
}
$suffixes = [''];
if ('\\' === \DIRECTORY_SEPARATOR) {
$pathExt = getenv('PATHEXT');
$suffixes = array_merge($pathExt ? explode(\PATH_SEPARATOR, $pathExt) : $this->suffixes, $suffixes);
}
foreach ($suffixes as $suffix) {
foreach ($dirs as $dir) {
if (@is_file($file = $dir.\DIRECTORY_SEPARATOR.$name.$suffix) && ('\\' === \DIRECTORY_SEPARATOR || @is_executable($file))) {
return $file;
}
}
}
return $default;
}
}