<?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\Package\PackageInterface;
use Symfony\Component\Finder\Finder;
use Composer\IO\IOInterface;
/**
* Base downloader for archives
*
* @author Kirill chEbba Chebunin <iam@chebba.org>
* @author Jordi Boggiano <j.boggiano@seld.be>
* @author François Pluchino <francois.pluchino@opendisplay.com>
*/
abstract class ArchiveDownloader extends FileDownloader
{
/**
* {@inheritDoc}
* @throws \RuntimeException
* @throws \UnexpectedValueException
*/
public function download(PackageInterface $package, $path, $output = true)
{
$temporaryDir = $this->config->get('vendor-dir').'/composer/'.substr(md5(uniqid('', true)), 0, 8);
$retries = 3;
while ($retries--) {
$fileName = parent::download($package, $path, $output);
if ($output) {
$this->io->writeError(' Extracting archive', false, IOInterface::VERBOSE);
}
try {
$this->filesystem->ensureDirectoryExists($temporaryDir);
try {
$this->extract($fileName, $temporaryDir);
} catch (\Exception $e) {
// remove cache if the file was corrupted
parent::clearLastCacheWrite($package);
throw $e;
}
$this->filesystem->unlink($fileName);
$contentDir = $this->getFolderContent($temporaryDir);
// only one dir in the archive, extract its contents out of it
if (1 === count($contentDir) && is_dir(reset($contentDir))) {
$contentDir = $this->getFolderContent((string) reset($contentDir));
}
// move files back out of the temp dir
foreach ($contentDir as $file) {
$file = (string) $file;
$this->filesystem->rename($file, $path . '/' . basename($file));
}
$this->filesystem->removeDirectory($temporaryDir);
if ($this->filesystem->isDirEmpty($this->config->get('vendor-dir').'/composer/')) {
$this->filesystem->removeDirectory($this->config->get('vendor-dir').'/composer/');
}
if ($this->filesystem->isDirEmpty($this->config->get('vendor-dir'))) {
$this->filesystem->removeDirectory($this->config->get('vendor-dir'));
}
} catch (\Exception $e) {
// clean up
$this->filesystem->removeDirectory($path);
$this->filesystem->removeDirectory($temporaryDir);
// retry downloading if we have an invalid zip file
if ($retries && $e instanceof \UnexpectedValueException && class_exists('ZipArchive') && $e->getCode() === \ZipArchive::ER_NOZIP) {
$this->io->writeError('');
if ($this->io->isDebug()) {
$this->io->writeError(' Invalid zip file ('.$e->getMessage().'), retrying...');
} else {
$this->io->writeError(' Invalid zip file, retrying...');
}
usleep(500000);
continue;
}
throw $e;
}
break;
}
}
/**
* {@inheritdoc}
*/
protected function getFileName(PackageInterface $package, $path)
{
return rtrim($path.'/'.md5($path.spl_object_hash($package)).'.'.pathinfo(parse_url($package->getDistUrl(), PHP_URL_PATH), PATHINFO_EXTENSION), '.');
}
/**
* Extract file to directory
*
* @param string $file Extracted file
* @param string $path Directory
*
* @throws \UnexpectedValueException If can not extract downloaded file to path
*/
abstract protected function extract($file, $path);
/**
* Returns the folder content, excluding dotfiles
*
* @param string $dir Directory
* @return \SplFileInfo[]
*/
private function getFolderContent($dir)
{
$finder = Finder::create()
->ignoreVCS(false)
->ignoreDotFiles(false)
->notName('.DS_Store')
->depth(0)
->in($dir);
return iterator_to_array($finder);
}
}