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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 = []; /** * Replaces default suffixes of executable. */ public function setSuffixes(array $suffixes) { $this->suffixes = $suffixes; } /** * Adds new possible suffix to check for executable. * * @param string $suffix */ public function addSuffix($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 $extraDirs Additional dirs to check into * * @return string|null The executable path or default value */ public function find($name, $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 = $this->suffixes; $suffixes = array_merge($suffixes, $pathExt ? explode(\PATH_SEPARATOR, $pathExt) : ['.exe', '.bat', '.cmd', '.com']); } $suffixes = '' !== pathinfo($name, PATHINFO_EXTENSION) ? array_merge([''], $suffixes) : array_merge($suffixes, ['']); foreach ($suffixes as $suffix) { foreach ($dirs as $dir) { if ('' === $dir) { $dir = '.'; } if (@is_file($file = $dir.\DIRECTORY_SEPARATOR.$name.$suffix) && ('\\' === \DIRECTORY_SEPARATOR || @is_executable($file))) { return $file; } if (!@is_dir($dir) && basename($dir) === $name.$suffix && @is_executable($dir)) { return $dir; } } } if ('\\' === \DIRECTORY_SEPARATOR || !\function_exists('exec') || \strlen($name) !== strcspn($name, '/'.\DIRECTORY_SEPARATOR)) { return $default; } $execResult = exec('command -v -- '.escapeshellarg($name)); if (($executablePath = substr($execResult, 0, strpos($execResult, \PHP_EOL) ?: null)) && @is_executable($executablePath)) { return $executablePath; } return $default; } }
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