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<?php
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/*
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* This file is part of Composer.
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*
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* (c) Nils Adermann <naderman@naderman.de>
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* Jordi Boggiano <j.boggiano@seld.be>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Composer\Downloader;
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use Composer\IO\IOInterface;
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use Composer\Package\PackageInterface;
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/**
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* Base downloader for file packages
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*
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* @author Kirill chEbba Chebunin <iam@chebba.org>
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* @author Jordi Boggiano <j.boggiano@seld.be>
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* @author François Pluchino <francois.pluchino@opendisplay.com>
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*/
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abstract class FileDownloader implements DownloaderInterface
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{
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protected $io;
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private $bytesMax;
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/**
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* Constructor.
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*
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* @param IOInterface $io The IO instance
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*/
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public function __construct(IOInterface $io)
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{
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$this->io = $io;
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}
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/**
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* {@inheritDoc}
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*/
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public function getInstallationSource()
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{
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return 'dist';
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}
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/**
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* {@inheritDoc}
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*/
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public function download(PackageInterface $package, $path)
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{
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// init the progress bar
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$this->bytesMax = 0;
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$url = $package->getDistUrl();
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$checksum = $package->getDistSha1Checksum();
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if (!is_dir($path)) {
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if (file_exists($path)) {
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throw new \UnexpectedValueException($path.' exists and is not a directory');
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}
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if (!mkdir($path, 0777, true)) {
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throw new \UnexpectedValueException($path.' does not exist and could not be created');
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}
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}
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$fileName = rtrim($path.'/'.md5(time().rand()).'.'.pathinfo($url, PATHINFO_EXTENSION), '.');
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$this->io->write(" - Package <info>" . $package->getName() . "</info> (<comment>" . $package->getPrettyVersion() . "</comment>)");
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if (!extension_loaded('openssl') && (0 === strpos($url, 'https:') || 0 === strpos($url, 'http://github.com'))) {
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// bypass https for github if openssl is disabled
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if (preg_match('{^https?://(github.com/[^/]+/[^/]+/(zip|tar)ball/[^/]+)$}i', $url, $match)) {
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$url = 'http://nodeload.'.$match[1];
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} else {
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throw new \RuntimeException('You must enable the openssl extension to download files via https');
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}
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}
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// Handle system proxy
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$params = array('http' => array());
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if (isset($_SERVER['HTTP_PROXY'])) {
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// http(s):// is not supported in proxy
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$proxy = str_replace(array('http://', 'https://'), array('tcp://', 'ssl://'), $_SERVER['HTTP_PROXY']);
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if (0 === strpos($proxy, 'ssl:') && !extension_loaded('openssl')) {
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throw new \RuntimeException('You must enable the openssl extension to use a proxy over https');
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}
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$params['http'] = array(
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'proxy' => $proxy,
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'request_fulluri' => true,
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);
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}
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if ($this->io->hasAuthorization($package->getSourceUrl())) {
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$auth = $this->io->getAuthorization($package->getSourceUrl());
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$authStr = base64_encode($auth['username'] . ':' . $auth['password']);
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$params['http'] = array_merge($params['http'], array('header' => "Authorization: Basic $authStr\r\n"));
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}
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$ctx = stream_context_create($params);
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stream_context_set_params($ctx, array("notification" => array($this, 'callbackGet')));
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$this->io->overwrite(" Downloading: <comment>connection...</comment>", false);
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@copy($url, $fileName, $ctx);
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$this->io->overwrite(" Downloading");
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if (!file_exists($fileName)) {
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throw new \UnexpectedValueException($url.' could not be saved to '.$fileName.', make sure the'
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.' directory is writable and you have internet connectivity');
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}
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if ($checksum && hash_file('sha1', $fileName) !== $checksum) {
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throw new \UnexpectedValueException('The checksum verification of the archive failed (downloaded from '.$url.')');
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}
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$this->io->write(' Unpacking archive');
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$this->extract($fileName, $path);
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$this->io->write(' Cleaning up');
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unlink($fileName);
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// If we have only a one dir inside it suppose to be a package itself
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$contentDir = glob($path . '/*');
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if (1 === count($contentDir)) {
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$contentDir = $contentDir[0];
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foreach (array_merge(glob($contentDir . '/.*'), glob($contentDir . '/*')) as $file) {
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if (trim(basename($file), '.')) {
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rename($file, $path . '/' . basename($file));
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}
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}
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rmdir($contentDir);
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}
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$this->io->write('');
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}
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/**
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* {@inheritDoc}
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*/
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public function update(PackageInterface $initial, PackageInterface $target, $path)
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{
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$fs = new Util\Filesystem();
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$fs->removeDirectory($path);
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$this->download($target, $path);
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}
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/**
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* {@inheritDoc}
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*/
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public function remove(PackageInterface $package, $path)
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{
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$fs = new Util\Filesystem();
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$fs->removeDirectory($path);
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}
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/**
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* Get notification action.
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*
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* @param integer $notificationCode The notification code
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* @param integer $severity The severity level
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* @param string $message The message
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* @param integer $messageCode The message code
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* @param integer $bytesTransferred The loaded size
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* @param integer $bytesMax The total size
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*/
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protected function callbackGet($notificationCode, $severity, $message, $messageCode, $bytesTransferred, $bytesMax)
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{
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switch ($notificationCode) {
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case STREAM_NOTIFY_AUTH_REQUIRED:
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throw new \LogicException("Authorization is required");
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break;
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case STREAM_NOTIFY_FAILURE:
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throw new \LogicException("File not found");
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break;
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case STREAM_NOTIFY_FILE_SIZE_IS:
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if ($this->bytesMax < $bytesMax) {
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$this->bytesMax = $bytesMax;
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}
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break;
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case STREAM_NOTIFY_PROGRESS:
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if ($this->bytesMax > 0) {
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$progression = 0;
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if ($this->bytesMax > 0) {
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$progression = round($bytesTransferred / $this->bytesMax * 100);
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}
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if (0 === $progression % 5) {
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$this->io->overwrite(" Downloading: <comment>$progression%</comment>", false);
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}
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}
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break;
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default:
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break;
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}
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}
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/**
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* Extract file to directory
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*
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* @param string $file Extracted file
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* @param string $path Directory
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*
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* @throws \UnexpectedValueException If can not extract downloaded file to path
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*/
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protected abstract function extract($file, $path);
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}
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