GetTypo3OrgService.php

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<?php
namespace TYPO3\CMS\Composer\Installer\CoreInstaller;

/***************************************************************
 * Copyright notice
 *
 * (c) 2014 Thomas Maroschik <tmaroschik@dfau.de>
 * All rights reserved
 *
 * This script is part of the TYPO3 project. The TYPO3 project is
 * free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * The GNU General Public License can be found at
 * http://www.gnu.org/copyleft/gpl.html.
 *
 * This script is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * This copyright notice MUST APPEAR in all copies of the script!
 ***************************************************************/

class GetTypo3OrgService {

        protected $file;

        protected $data = array();

        public function __construct(\Composer\IO\IOInterface $io, $jsonUrl = 'https://get.typo3.org/json') {
                $this->file = new \Composer\Json\JsonFile($jsonUrl, new \Composer\Util\RemoteFilesystem($io));
        }

        protected function initializeData() {
                if (empty($this->data)) {
                        $this->data = $this->file->read();
                }
        }

        public function addDistToPackage(\Composer\Package\Package $package) {
                $this->initializeData();
                $versionDigits = explode('.', $package->getPrettyVersion());
                if (count($versionDigits) === 3) {
                        $branchVersion = $versionDigits[0] . '.' . $versionDigits[1];
                        $patchlevelVersion = $versionDigits[0] . '.' . $versionDigits[1] . '.' . $versionDigits[2];
                        if (isset($this->data[$branchVersion]) && isset($this->data[$branchVersion]['releases'][$patchlevelVersion])) {
                                $releaseData = $this->data[$branchVersion]['releases'][$patchlevelVersion];
                                if (isset($releaseData['checksums']['tar']['sha1']) && isset($releaseData['url']['tar'])) {
                                        $package->setDistType('tar');
                                        $package->setDistReference($patchlevelVersion);
                                        $package->setDistUrl($releaseData['url']['tar']);
                                        $package->setDistSha1Checksum($releaseData['checksums']['tar']['sha1']);
                                }
                        }
                }
        }

}