Viewing file:  Process.php (3.12 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
<?php
/*
* This file is part of composer/xdebug-handler.
*
* (c) Composer <https://github.com/composer>
*
* For the full copyright and license information, please view
* the LICENSE file that was distributed with this source code.
*/
namespace Composer\XdebugHandler;
use Composer\Pcre\Preg;
/**
* Process utility functions
*
* @author John Stevenson <john-stevenson@blueyonder.co.uk>
*/
class Process
{
/**
* Escapes a string to be used as a shell argument.
*
* From https://github.com/johnstevenson/winbox-args
* MIT Licensed (c) John Stevenson <john-stevenson@blueyonder.co.uk>
*
* @param string $arg The argument to be escaped
* @param bool $meta Additionally escape cmd.exe meta characters
* @param bool $module The argument is the module to invoke
*
* @return string The escaped argument
*/
public static function escape($arg, $meta = true, $module = false)
{
if (!defined('PHP_WINDOWS_VERSION_BUILD')) {
return "'".str_replace("'", "'\\''", $arg)."'";
}
$quote = strpbrk($arg, " \t") !== false || $arg === '';
$arg = Preg::replace('/(\\\\*)"/', '$1$1\\"', $arg, -1, $dquotes);
if ($meta) {
$meta = $dquotes || Preg::isMatch('/%[^%]+%/', $arg);
if (!$meta) {
$quote = $quote || strpbrk($arg, '^&|<>()') !== false;
} elseif ($module && !$dquotes && $quote) {
$meta = false;
}
}
if ($quote) {
$arg = '"'.(Preg::replace('/(\\\\*)$/', '$1$1', $arg)).'"';
}
if ($meta) {
$arg = Preg::replace('/(["^&|<>()%])/', '^$1', $arg);
}
return $arg;
}
/**
* Escapes an array of arguments that make up a shell command
*
* @param string[] $args Argument list, with the module name first
*
* @return string The escaped command line
*/
public static function escapeShellCommand(array $args)
{
$command = '';
$module = array_shift($args);
if ($module !== null) {
$command = self::escape($module, true, true);
foreach ($args as $arg) {
$command .= ' '.self::escape($arg);
}
}
return $command;
}
/**
* Makes putenv environment changes available in $_SERVER and $_ENV
*
* @param string $name
* @param string|null $value A null value unsets the variable
*
* @return bool Whether the environment variable was set
*/
public static function setEnv($name, $value = null)
{
$unset = null === $value;
if (!putenv($unset ? $name : $name.'='.$value)) {
return false;
}
if ($unset) {
unset($_SERVER[$name]);
} else {
$_SERVER[$name] = $value;
}
// Update $_ENV if it is being used
if (false !== stripos((string) ini_get('variables_order'), 'E')) {
if ($unset) {
unset($_ENV[$name]);
} else {
$_ENV[$name] = $value;
}
}
return true;
}
}
|