<?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\Downloader;
use Composer\Config;
use Composer\Cache;
use Composer\EventDispatcher\EventDispatcher;
use Composer\Util\IniHelper;
use Composer\Util\Platform;
use Composer\Util\ProcessExecutor;
use Composer\Util\RemoteFilesystem;
use Composer\IO\IOInterface;
use RarArchive;
/**
* RAR archive downloader.
*
* Based on previous work by Jordi Boggiano ({@see ZipDownloader}).
*
* @author Derrick Nelson <drrcknlsn@gmail.com>
*/
class RarDownloader extends ArchiveDownloader
{
protected $process;
public function __construct(IOInterface $io, Config $config, EventDispatcher $eventDispatcher = null, Cache $cache = null, ProcessExecutor $process = null, RemoteFilesystem $rfs = null)
{
$this->process = $process ?: new ProcessExecutor($io);
parent::__construct($io, $config, $eventDispatcher, $cache, $rfs);
}
protected function extract($file, $path)
{
$processError = null;
// Try to use unrar on *nix
if (!Platform::isWindows()) {
$command = 'unrar x ' . ProcessExecutor::escape($file) . ' ' . ProcessExecutor::escape($path) . ' >/dev/null && chmod -R u+w ' . ProcessExecutor::escape($path);
if (0 === $this->process->execute($command, $ignoredOutput)) {
return;
}
$processError = 'Failed to execute ' . $command . "\n\n" . $this->process->getErrorOutput();
}
if (!class_exists('RarArchive')) {
// php.ini path is added to the error message to help users find the correct file
$iniMessage = IniHelper::getMessage();
$error = "Could not decompress the archive, enable the PHP rar extension or install unrar.\n"
. $iniMessage . "\n" . $processError;
if (!Platform::isWindows()) {
$error = "Could not decompress the archive, enable the PHP rar extension.\n" . $iniMessage;
}
throw new \RuntimeException($error);
}
$rarArchive = RarArchive::open($file);
if (false === $rarArchive) {
throw new \UnexpectedValueException('Could not open RAR archive: ' . $file);
}
$entries = $rarArchive->getEntries();
if (false === $entries) {
throw new \RuntimeException('Could not retrieve RAR archive entries');
}
foreach ($entries as $entry) {
if (false === $entry->extract($path)) {
throw new \RuntimeException('Could not extract entry');
}
}
$rarArchive->close();
}
}