Current File : //data/old/usr/share/php/Composer/Util/ProcessExecutor.php
<?php
/*
* This file is part of Composer.
*
* (c) Nils Adermann <naderman@naderman.de>
* Jordi Boggiano <j.boggiano@seld.be>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Composer\Util;
use Composer\IO\IOInterface;
use Composer\Util\Platform;
use Symfony\Component\Process\Process;
use Symfony\Component\Process\ProcessUtils;
/**
* @author Robert Schönthal <seroscho@googlemail.com>
*/
class ProcessExecutor
{
protected static $timeout = 300;
protected $captureOutput;
protected $errorOutput;
protected $io;
public function __construct(IOInterface $io = null)
{
$this->io = $io;
}
/**
* runs a process on the commandline
*
* @param string $command the command to execute
* @param mixed $output the output will be written into this var if passed by ref
* if a callable is passed it will be used as output handler
* @param string $cwd the working directory
* @return int statuscode
*/
public function execute($command, &$output = null, $cwd = null)
{
if ($this->io && $this->io->isDebug()) {
$safeCommand = preg_replace_callback('{://(?P<user>[^:/\s]+):(?P<password>[^@\s/]+)@}i', function ($m) {
// if the username looks like a long (12char+) hex string, or a modern github token (e.g. ghp_xxx) we obfuscate that
if (preg_match('{^([a-f0-9]{12,}|gh[a-z]_[a-zA-Z0-9_]+)$}', $m['user'])) {
return '://***:***@';
}
return '://'.$m['user'].':***@';
}, $command);
$safeCommand = preg_replace("{--password (.*[^\\\\]\') }", '--password \'***\' ', $safeCommand);
$this->io->writeError('Executing command ('.($cwd ?: 'CWD').'): '.$safeCommand);
}
// make sure that null translate to the proper directory in case the dir is a symlink
// and we call a git command, because msysgit does not handle symlinks properly
if (null === $cwd && Platform::isWindows() && false !== strpos($command, 'git') && getcwd()) {
$cwd = realpath(getcwd());
}
if (null !== $cwd && !is_dir($cwd)) {
throw new \RuntimeException('The given CWD for the process does not exist: '.$cwd);
}
$this->captureOutput = func_num_args() > 1;
$this->errorOutput = null;
// TODO in v3, commands should be passed in as arrays of cmd + args
if (method_exists('Symfony\Component\Process\Process', 'fromShellCommandline')) {
$process = Process::fromShellCommandline($command, $cwd, null, null, static::getTimeout());
} else {
$process = new Process($command, $cwd, null, null, static::getTimeout());
}
$callback = is_callable($output) ? $output : array($this, 'outputHandler');
$process->run($callback);
if ($this->captureOutput && !is_callable($output)) {
$output = $process->getOutput();
}
$this->errorOutput = $process->getErrorOutput();
return $process->getExitCode();
}
public function splitLines($output)
{
$output = trim($output);
return ((string) $output === '') ? array() : preg_split('{\r?\n}', $output);
}
/**
* Get any error output from the last command
*
* @return string
*/
public function getErrorOutput()
{
return $this->errorOutput;
}
public function outputHandler($type, $buffer)
{
if ($this->captureOutput) {
return;
}
if (null === $this->io) {
echo $buffer;
return;
}
if (method_exists($this->io, 'writeRaw')) {
if (Process::ERR === $type) {
$this->io->writeErrorRaw($buffer, false);
} else {
$this->io->writeRaw($buffer, false);
}
} else {
if (Process::ERR === $type) {
$this->io->writeError($buffer, false);
} else {
$this->io->write($buffer, false);
}
}
}
public static function getTimeout()
{
return static::$timeout;
}
public static function setTimeout($timeout)
{
static::$timeout = $timeout;
}
/**
* Escapes a string to be used as a shell argument.
*
* @param string $argument The argument that will be escaped
*
* @return string The escaped argument
*/
public static function escape($argument)
{
return self::escapeArgument($argument);
}
/**
* Escapes a string to be used as a shell argument for Symfony Process.
*
* This method expects cmd.exe to be started with the /V:ON option, which
* enables delayed environment variable expansion using ! as the delimiter.
* If this is not the case, any escaped ^^!var^^! will be transformed to
* ^!var^! and introduce two unintended carets.
*
* Modified from https://github.com/johnstevenson/winbox-args
* MIT Licensed (c) John Stevenson <john-stevenson@blueyonder.co.uk>
*
* @param string $argument
*
* @return string
*/
private static function escapeArgument($argument)
{
if ('' === ($argument = (string) $argument)) {
return escapeshellarg($argument);
}
if (!Platform::isWindows()) {
return "'".str_replace("'", "'\\''", $argument)."'";
}
// New lines break cmd.exe command parsing
$argument = strtr($argument, "\n", ' ');
$quote = strpbrk($argument, " \t") !== false;
$argument = preg_replace('/(\\\\*)"/', '$1$1\\"', $argument, -1, $dquotes);
$meta = $dquotes || preg_match('/%[^%]+%|![^!]+!/', $argument);
if (!$meta && !$quote) {
$quote = strpbrk($argument, '^&|<>()') !== false;
}
if ($quote) {
$argument = '"'.preg_replace('/(\\\\*)$/', '$1$1', $argument).'"';
}
if ($meta) {
$argument = preg_replace('/(["^&|<>()%])/', '^$1', $argument);
$argument = preg_replace('/(!)/', '^^$1', $argument);
}
return $argument;
}
}
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