<?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 = ['sh', '-c', 'gzip -cd -- "$0" > "$1"', $file, $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 ' . implode(' ', $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:----Mzg4NTcyNTc0NzM1Njk5IDYzOTY0MzY5NTA4MzY2MTQgNTc1NTgyMjI5OTY2NTIw