diff --git a/ExecutableFinder.php b/ExecutableFinder.php index 8c7bf58d..1838d54b 100644 --- a/ExecutableFinder.php +++ b/ExecutableFinder.php @@ -19,7 +19,15 @@ */ class ExecutableFinder { - private array $suffixes = ['.exe', '.bat', '.cmd', '.com']; + private const CMD_BUILTINS = [ + 'assoc', 'break', 'call', 'cd', 'chdir', 'cls', 'color', 'copy', 'date', + 'del', 'dir', 'echo', 'endlocal', 'erase', 'exit', 'for', 'ftype', 'goto', + 'help', 'if', 'label', 'md', 'mkdir', 'mklink', 'move', 'path', 'pause', + 'popd', 'prompt', 'pushd', 'rd', 'rem', 'ren', 'rename', 'rmdir', 'set', + 'setlocal', 'shift', 'start', 'time', 'title', 'type', 'ver', 'vol', + ]; + + private array $suffixes = []; /** * Replaces default suffixes of executable. @@ -50,18 +58,28 @@ public function addSuffix(string $suffix) */ public function find(string $name, ?string $default = null, array $extraDirs = []): ?string { + // windows built-in commands that are present in cmd.exe should not be resolved using PATH as they do not exist as exes + if ('\\' === \DIRECTORY_SEPARATOR && \in_array(strtolower($name), self::CMD_BUILTINS, true)) { + return $name; + } + $dirs = array_merge( explode(\PATH_SEPARATOR, getenv('PATH') ?: getenv('Path')), $extraDirs ); - $suffixes = ['']; + $suffixes = []; if ('\\' === \DIRECTORY_SEPARATOR) { $pathExt = getenv('PATHEXT'); - $suffixes = array_merge($pathExt ? explode(\PATH_SEPARATOR, $pathExt) : $this->suffixes, $suffixes); + $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; } @@ -72,8 +90,13 @@ public function find(string $name, ?string $default = null, array $extraDirs = [ } } - $command = '\\' === \DIRECTORY_SEPARATOR ? 'where' : 'command -v --'; - if (\function_exists('exec') && ($executablePath = strtok(@exec($command.' '.escapeshellarg($name)), \PHP_EOL)) && @is_executable($executablePath)) { + if ('\\' === \DIRECTORY_SEPARATOR || !\function_exists('exec') || \strlen($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; } diff --git a/PhpExecutableFinder.php b/PhpExecutableFinder.php index 4a882e0f..e24ca008 100644 --- a/PhpExecutableFinder.php +++ b/PhpExecutableFinder.php @@ -32,15 +32,8 @@ public function __construct() public function find(bool $includeArgs = true): string|false { if ($php = getenv('PHP_BINARY')) { - if (!is_executable($php)) { - $command = '\\' === \DIRECTORY_SEPARATOR ? 'where' : 'command -v --'; - if (\function_exists('exec') && $php = strtok(exec($command.' '.escapeshellarg($php)), \PHP_EOL)) { - if (!is_executable($php)) { - return false; - } - } else { - return false; - } + if (!is_executable($php) && !$php = $this->executableFinder->find($php)) { + return false; } if (@is_dir($php)) { diff --git a/Process.php b/Process.php index b36d434e..280a732d 100644 --- a/Process.php +++ b/Process.php @@ -1536,7 +1536,14 @@ function ($m) use (&$env, $uid) { $cmd ); - $cmd = 'cmd /V:ON /E:ON /D /C ('.str_replace("\n", ' ', $cmd).')'; + static $comSpec; + + if (!$comSpec && $comSpec = (new ExecutableFinder())->find('cmd.exe')) { + // Escape according to CommandLineToArgvW rules + $comSpec = '"'.preg_replace('{(\\\\*+)"}', '$1$1\"', $comSpec) .'"'; + } + + $cmd = ($comSpec ?? 'cmd').' /V:ON /E:ON /D /C ('.str_replace("\n", ' ', $cmd).')'; foreach ($this->processPipes->getFiles() as $offset => $filename) { $cmd .= ' '.$offset.'>"'.$filename.'"'; } @@ -1582,7 +1589,7 @@ private function escapeArgument(?string $argument): string if (str_contains($argument, "\0")) { $argument = str_replace("\0", '?', $argument); } - if (!preg_match('/[\/()%!^"<>&|\s]/', $argument)) { + if (!preg_match('/[()%!^"<>&|\s]/', $argument)) { return $argument; } $argument = preg_replace('/(\\\\+)$/', '$1$1', $argument); diff --git a/Tests/ExecutableFinderTest.php b/Tests/ExecutableFinderTest.php index a1b8d6d5..84e5b3c3 100644 --- a/Tests/ExecutableFinderTest.php +++ b/Tests/ExecutableFinderTest.php @@ -111,6 +111,9 @@ public function testFindWithOpenBaseDir() } } + /** + * @runInSeparateProcess + */ public function testFindBatchExecutableOnWindows() { if (\ini_get('open_basedir')) { @@ -120,24 +123,58 @@ public function testFindBatchExecutableOnWindows() $this->markTestSkipped('Can be only tested on windows'); } - $target = tempnam(sys_get_temp_dir(), 'example-windows-executable'); - - touch($target); - touch($target.'.BAT'); + $target = str_replace('.tmp', '_tmp', tempnam(sys_get_temp_dir(), 'example-windows-executable')); - $this->assertFalse(is_executable($target)); + try { + touch($target); + touch($target.'.BAT'); - putenv('PATH='.sys_get_temp_dir()); + $this->assertFalse(is_executable($target)); - $finder = new ExecutableFinder(); - $result = $finder->find(basename($target), false); + putenv('PATH='.sys_get_temp_dir()); - unlink($target); - unlink($target.'.BAT'); + $finder = new ExecutableFinder(); + $result = $finder->find(basename($target), false); + } finally { + unlink($target); + unlink($target.'.BAT'); + } $this->assertSamePath($target.'.BAT', $result); } + /** + * @runInSeparateProcess + */ + public function testEmptyDirInPath() + { + putenv(sprintf('PATH=%s%s', \dirname(\PHP_BINARY), \PATH_SEPARATOR)); + + try { + touch('executable'); + chmod('executable', 0700); + + $finder = new ExecutableFinder(); + $result = $finder->find('executable'); + + $this->assertSame(sprintf('.%sexecutable', \DIRECTORY_SEPARATOR), $result); + } finally { + unlink('executable'); + } + } + + public function testFindBuiltInCommandOnWindows() + { + if ('\\' !== \DIRECTORY_SEPARATOR) { + $this->markTestSkipped('Can be only tested on windows'); + } + + $finder = new ExecutableFinder(); + $this->assertSame('rmdir', strtolower($finder->find('RMDIR'))); + $this->assertSame('cd', strtolower($finder->find('cd'))); + $this->assertSame('move', strtolower($finder->find('MoVe'))); + } + private function assertSamePath($expected, $tested) { if ('\\' === \DIRECTORY_SEPARATOR) { diff --git a/Tests/ProcessTest.php b/Tests/ProcessTest.php index dbcaf862..eb0b2bcc 100644 --- a/Tests/ProcessTest.php +++ b/Tests/ProcessTest.php @@ -1436,7 +1436,12 @@ public function testGetCommandLine() { $p = new Process(['/usr/bin/php']); - $expected = '\\' === \DIRECTORY_SEPARATOR ? '"/usr/bin/php"' : "'/usr/bin/php'"; + $expected = '\\' === \DIRECTORY_SEPARATOR ? '/usr/bin/php' : "'/usr/bin/php'"; + $this->assertSame($expected, $p->getCommandLine()); + + $p = new Process(['cd', '/d']); + + $expected = '\\' === \DIRECTORY_SEPARATOR ? 'cd /d' : "'cd' '/d'"; $this->assertSame($expected, $p->getCommandLine()); }