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<?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\Package\PackageInterface;
use Composer\Util\Platform;
use Composer\Util\ProcessExecutor;
use Composer\Util\RemoteFilesystem;
use Composer\IO\IOInterface;
use Symfony\Component\Process\ExecutableFinder;
use ZipArchive;
/**
* @author Jordi Boggiano <j.boggiano@seld.be>
*/
class ZipDownloader extends ArchiveDownloader
{
protected $process;
protected static $hasSystemUnzip;
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);
}
/**
* {@inheritDoc}
*/
public function download(PackageInterface $package, $path)
{
if (null === self::$hasSystemUnzip) {
$finder = new ExecutableFinder;
self::$hasSystemUnzip = (bool) $finder->find('unzip');
}
if (!class_exists('ZipArchive') && !self::$hasSystemUnzip) {
// php.ini path is added to the error message to help users find the correct file
$iniPath = php_ini_loaded_file();
if ($iniPath) {
$iniMessage = 'The php.ini used by your command-line PHP is: ' . $iniPath;
} else {
$iniMessage = 'A php.ini file does not exist. You will have to create one.';
}
$error = "The zip extension and unzip command are both missing, skipping.\n" . $iniMessage;
throw new \RuntimeException($error);
}
return parent::download($package, $path);
}
protected function extract($file, $path)
{
$processError = null;
if (self::$hasSystemUnzip && !(class_exists('ZipArchive') && Platform::isWindows())) {
$command = 'unzip -qq '.ProcessExecutor::escape($file).' -d '.ProcessExecutor::escape($path);
if (!Platform::isWindows()) {
$command .= ' && chmod -R u+w ' . ProcessExecutor::escape($path);
}
try {
if (0 === $this->process->execute($command, $ignoredOutput)) {
return;
}
$processError = 'Failed to execute ' . $command . "\n\n" . $this->process->getErrorOutput();
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} catch (\Exception $e) {
$processError = 'Failed to execute ' . $command . "\n\n" . $e->getMessage();
}
if (!class_exists('ZipArchive')) {
throw new \RuntimeException($processError);
}
}
$zipArchive = new ZipArchive();
if (true !== ($retval = $zipArchive->open($file))) {
throw new \UnexpectedValueException(rtrim($this->getErrorMessage($retval, $file)."\n".$processError), $retval);
}
if (true !== $zipArchive->extractTo($path)) {
throw new \RuntimeException(rtrim("There was an error extracting the ZIP file, it is either corrupted or using an invalid format.\n".$processError));
}
$zipArchive->close();
}
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/**
* Give a meaningful error message to the user.
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*
* @param int $retval
* @param string $file
* @return string
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*/
protected function getErrorMessage($retval, $file)
{
switch ($retval) {
case ZipArchive::ER_EXISTS:
return sprintf("File '%s' already exists.", $file);
case ZipArchive::ER_INCONS:
return sprintf("Zip archive '%s' is inconsistent.", $file);
case ZipArchive::ER_INVAL:
return sprintf("Invalid argument (%s)", $file);
case ZipArchive::ER_MEMORY:
return sprintf("Malloc failure (%s)", $file);
case ZipArchive::ER_NOENT:
return sprintf("No such zip file: '%s'", $file);
case ZipArchive::ER_NOZIP:
return sprintf("'%s' is not a zip archive.", $file);
case ZipArchive::ER_OPEN:
return sprintf("Can't open zip file: %s", $file);
case ZipArchive::ER_READ:
return sprintf("Zip read error (%s)", $file);
case ZipArchive::ER_SEEK:
return sprintf("Zip seek error (%s)", $file);
default:
return sprintf("'%s' is not a valid zip archive, got error code: %s", $file, $retval);
}
}
}