<?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:----MTU0MDM5OTcxMzkxMTM1MSAxNzgxNDI4Mzk3Mjg1MDc1IDY2MTI3MTkzNDEzNDUwMzY=