<?php

namespace Composer\Downloader;

use Composer\Package\PackageInterface;
use Composer\Util\Platform;
use Composer\Util\ProcessExecutor;
use React\Promise\PromiseInterface;

/**
 * GZip archive downloader.
 *
 * @author Pavel Puchkin <i@neoascetic.me>
 */
class GzipDownloader extends ArchiveDownloader
{
    protected function extract(PackageInterface $package, string $file, string $path): PromiseInterface
    {
        $filename = pathinfo(parse_url(strtr((string) $package->getDistUrl(), '\\', '/'), PHP_URL_PATH), PATHINFO_FILENAME);
        $targetFilepath = $path . DIRECTORY_SEPARATOR . $filename;

        // Try to use gunzip on *nix
        if (!Platform::isWindows()) {
            $command = 'gzip -cd -- ' . ProcessExecutor::escape($file) . ' > ' . ProcessExecutor::escape($targetFilepath);

            if (0 === $this->process->execute($command, $ignoredOutput)) {
                return \React\Promise\resolve(null);
            }

            if (extension_loaded('zlib')) {
                // Fallback to using the PHP extension.
                $this->extractUsingExt($file, $targetFilepath);

                return \React\Promise\resolve(null);
            }

            $processError = 'Failed to execute ' . $command . "\n\n" . $this->process->getErrorOutput();
            throw new \RuntimeException($processError);
        }

        // Windows version of PHP has built-in support of gzip functions
        $this->extractUsingExt($file, $targetFilepath);

        return \React\Promise\resolve(null);
    }

    private function extractUsingExt(string $file, string $targetFilepath): void
    {
        $archiveFile = gzopen($file, 'rb');
        $targetFile = fopen($targetFilepath, 'wb');
        while ($string = gzread($archiveFile, 4096)) {
            fwrite($targetFile, $string, Platform::strlen($string));
        }
        gzclose($archiveFile);
        fclose($targetFile);
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NzU1MTQ4NjIwOTU5MDE1NCA3MjY3MzU5NTM1MDEyNTQyIDQwMjA5NTQxMDI3MTg5NDM=