<?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:----MTM1MzEyMDAxMDQxNTU5MyA5MjI3OTA0MjQ1NDE2ODY5IDI3ODE4MTc3NjY2MTYwODc=