PackageFactory.php

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<?php
namespace TYPO3\CMS\Core\Package;

/*                                                                        *
 * This script belongs to the TYPO3 Flow framework.                       *
 *                                                                        *
 * It is free software; you can redistribute it and/or modify it under    *
 * the terms of the GNU Lesser General Public License, either version 3   *
 * of the License, or (at your option) any later version.                 *
 *                                                                        *
 * The TYPO3 project - inspiring people to share!                         *
 *                                                                        */

use TYPO3\Flow\Utility\Files;

class PackageFactory extends \TYPO3\Flow\Package\PackageFactory {

    protected $packageManager;

    public function __construct(PackageManager $packageManager) {
        $this->packageManager = $packageManager;
    }

    public function create($packagesBasePath, $packagePath, $packageKey, $classesPath, $manifestPath = '') {
        $packagePath = Files::getNormalizedPath(Files::concatenatePaths(array($packagesBasePath, $packagePath)));
        $packageClassPathAndFilename = Files::concatenatePaths(array($packagePath, 'Classes/' . str_replace('.', '/', $packageKey) . '/Package.php'));
        $alternativeClassPathAndFilename = Files::concatenatePaths(array($packagePath, 'Classes/Package.php'));
        $packageClassPathAndFilename = @file_exists($alternativeClassPathAndFilename) ? $alternativeClassPathAndFilename : $packageClassPathAndFilename;
        if (@file_exists($packageClassPathAndFilename)) {
            require_once($packageClassPathAndFilename);
            if (substr($packagePath, 0, strlen(PATH_typo3)) === PATH_typo3 && strpos($packageKey, '.') === FALSE) {
                //TODO Remove this exception once the systextension are renamed to proper Flow naming scheme packages
                $packageClassName = 'TYPO3\\CMS\\' . \TYPO3\CMS\Core\Utility\GeneralUtility::underscoredToUpperCamelCase($packageKey) . '\Package';
            } else {
                $packageClassName = str_replace('.', '\\', $packageKey) . '\Package';
            }
            if (!class_exists($packageClassName, FALSE)) {
                throw new \TYPO3\Flow\Package\Exception\CorruptPackageException(sprintf('The package "%s" does not contain a valid package class. Check if the file "%s" really contains a class called "%s".', $packageKey, $packageClassPathAndFilename, $packageClassName), 1327587092);
            }
        } else {
            $emConfPath = Files::concatenatePaths(array($packagePath, 'ext_emconf.php'));
            $packageClassName = @file_exists($emConfPath) ? 'TYPO3\CMS\Core\Package\Package' : 'TYPO3\Flow\Package\Package';
        }

        $package = new $packageClassName($this->packageManager, $packageKey, $packagePath, $classesPath, $manifestPath);

        return $package;
    }

    public static function getPackageKeyFromManifest($manifest, $packagePath, $packagesBasePath) {
        if (!is_object($manifest)) {
            throw new  \TYPO3\Flow\Package\Exception\InvalidPackageManifestException('Invalid composer manifest in package path: ' . $packagePath, 1348146451);
        }
        if (isset($manifest->type) && substr($manifest->type, 0, 10) === 'typo3-cms-') {
            $relativePackagePath = substr($packagePath, strlen($packagesBasePath));
            $packageKey = substr($relativePackagePath, strpos($relativePackagePath, '/') + 1, -1);
            $packageKey = preg_replace('/[^A-Za-z0-9._-]/', '', $packageKey);
            return $packageKey;
        } else {
            return parent::getPackageKeyFromManifest($manifest, $packagePath, $packagesBasePath);
        }
    }

}