UploadExtensionFileController.php

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<?php
namespace TYPO3\CMS\Extensionmanager\Controller;

use TYPO3\CMS\Core\Messaging\FlashMessage;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Extensionmanager\Exception\DependencyConfigurationNotFoundException;
use TYPO3\CMS\Extensionmanager\Exception\ExtensionManagerException;

class UploadExtensionFileController extends AbstractController {

    protected $extensionRepository;

    protected $fileHandlingUtility;

    protected $terUtility;

    protected $managementService;

    protected $extensionBackupPath = '';

    protected $removeFromOriginalPath = FALSE;

    public function injectExtensionRepository(\TYPO3\CMS\Extensionmanager\Domain\Repository\ExtensionRepository $extensionRepository) {
        $this->extensionRepository = $extensionRepository;
    }

    public function __destruct() {
        $this->removeBackupFolder();
    }

    public function formAction() {
    }

    public function extractAction($overwrite = FALSE) {
        $file = $_FILES['tx_extensionmanager_tools_extensionmanagerextensionmanager'];
        $fileName = pathinfo($file['name']['extensionFile'], PATHINFO_BASENAME);
        try {
            // If the file name isn't valid an error will be thrown
            $this->checkFileName($fileName);
            if (!empty($file['tmp_name']['extensionFile'])) {
                $tempFile = GeneralUtility::upload_to_tempfile($file['tmp_name']['extensionFile']);
            } else {
                throw new ExtensionManagerException(
                    'Creating temporary file failed. Check your upload_max_filesize and post_max_size limits.',
                    1342864339
                );
            }
            $extensionData = $this->extractExtensionFromFile($tempFile, $fileName, $overwrite);
            if ($this->activateExtension($extensionData['extKey'])) {
                $this->addFlashMessage(
                    htmlspecialchars($this->translate('extensionList.uploadFlashMessage.message', array($extensionData['extKey']))),
                    htmlspecialchars($this->translate('extensionList.uploadFlashMessage.title')),
                    FlashMessage::OK
                );
                $this->addFlashMessage(
                    htmlspecialchars($this->translate('extensionList.installedFlashMessage.message', array($extensionData['extKey']))),
                    '',
                    FlashMessage::OK
                );
            } else {
                $this->redirect('unresolvedDependencies', 'List', NULL, array('extensionKey' => $extensionData['extKey']));
            }
        } catch (\TYPO3\CMS\Extbase\Mvc\Exception\StopActionException $exception) {
            throw $exception;
        } catch (DependencyConfigurationNotFoundException $exception) {
            $this->addFlashMessage(htmlspecialchars($exception->getMessage()), '', FlashMessage::ERROR);
        } catch (\Exception $exception) {
            $this->removeExtensionAndRestoreFromBackup($fileName);
            $this->addFlashMessage(htmlspecialchars($exception->getMessage()), '', FlashMessage::ERROR);
        }
        $this->redirect('index', 'List', NULL, array(self::TRIGGER_RefreshModuleMenu => TRUE));
    }

    public function checkFileName($fileName) {
        $extension = pathinfo($fileName, PATHINFO_EXTENSION);
        if (empty($fileName)) {
            throw new ExtensionManagerException('No file given.', 1342858852);
        }
        if ($extension !== 't3x' && $extension !== 'zip') {
            throw new ExtensionManagerException('Wrong file format "' . $extension . '" given. Allowed formats are t3x and zip.', 1342858853);
        }
    }

    public function extractExtensionFromFile($uploadPath, $fileName, $overwrite) {
        $fileExtension = pathinfo($fileName, PATHINFO_EXTENSION);
        if ($fileExtension === 't3x') {
            $extensionData = $this->getExtensionFromT3xFile($uploadPath, $overwrite);
        } else {
            $extensionData = $this->getExtensionFromZipFile($uploadPath, $fileName, $overwrite);
        }

        return $extensionData;
    }

    public function activateExtension($extensionKey) {
        $extension = $this->managementService->getExtension($extensionKey);
        return is_array($this->managementService->installExtension($extension));
    }

    protected function getExtensionFromT3xFile($file, $overwrite = FALSE) {
        $fileContent = GeneralUtility::getUrl($file);
        if (!$fileContent) {
            throw new ExtensionManagerException('File had no or wrong content.', 1342859339);
        }
        $extensionData = $this->terUtility->decodeExchangeData($fileContent);
        if (empty($extensionData['extKey'])) {
            throw new ExtensionManagerException('Decoding the file went wrong. No extension key found', 1342864309);
        }
        $isExtensionAvailable = $this->managementService->isAvailable($extensionData['extKey']);
        if (!$overwrite && $isExtensionAvailable) {
            throw new ExtensionManagerException($this->translate('extensionList.overwritingDisabled'), 1342864310);
        }
        if ($isExtensionAvailable) {
            $this->copyExtensionFolderToTempFolder($extensionData['extKey']);
        }
        $this->removeFromOriginalPath = TRUE;
        $extension = $this->extensionRepository->findOneByExtensionKeyAndVersion($extensionData['extKey'], $extensionData['EM_CONF']['version']);
        $this->fileHandlingUtility->unpackExtensionFromExtensionDataArray($extensionData, $extension);

        if (empty($extension)
            && empty($extensionData['EM_CONF']['constraints'])
            && !isset($extensionData['FILES']['ext_emconf.php'])
            && !isset($extensionData['FILES']['/ext_emconf.php'])
        ) {
            throw new DependencyConfigurationNotFoundException('Extension cannot be installed automatically because no dependencies could be found! Please check dependencies manually (on typo3.org) before installing the extension.', 1439587168);
        }

        return $extensionData;
    }

    protected function getExtensionFromZipFile($file, $fileName, $overwrite = FALSE) {
        // Remove version and extension from filename to determine the extension key
        $extensionKey = $this->getExtensionKeyFromFileName($fileName);
        $isExtensionAvailable = $this->managementService->isAvailable($extensionKey);
        if (!$overwrite && $isExtensionAvailable) {
            throw new ExtensionManagerException('Extension is already available and overwriting is disabled.', 1342864311);
        }
        if ($isExtensionAvailable) {
            $this->copyExtensionFolderToTempFolder($extensionKey);
        }
        $this->removeFromOriginalPath = TRUE;
        $this->fileHandlingUtility->unzipExtensionFromFile($file, $extensionKey);

        return array('extKey' => $extensionKey);
    }

    protected function getExtensionKeyFromFileName($fileName) {
        return preg_replace('/_(\\d+)(\\.|\\-)(\\d+)(\\.|\\-)(\\d+).*/i', '', strtolower(substr($fileName, 0, -4)));
    }

    protected function copyExtensionFolderToTempFolder($extensionKey) {
        $this->extensionBackupPath = PATH_site . 'typo3temp/' . $extensionKey . substr(sha1($extensionKey . microtime()), 0, 7) . '/';
        GeneralUtility::mkdir($this->extensionBackupPath);
        GeneralUtility::copyDirectory(
            $this->fileHandlingUtility->getExtensionDir($extensionKey),
            $this->extensionBackupPath
        );
    }

    protected function removeExtensionAndRestoreFromBackup($fileName) {
        $extDirPath = $this->fileHandlingUtility->getExtensionDir($this->getExtensionKeyFromFileName($fileName));
        if ($this->removeFromOriginalPath && is_dir($extDirPath)) {
            GeneralUtility::rmdir($extDirPath, TRUE);
        }
        if (!empty($this->extensionBackupPath)) {
            GeneralUtility::mkdir($extDirPath);
            GeneralUtility::copyDirectory($this->extensionBackupPath, $extDirPath);
        }
    }

    protected function removeBackupFolder() {
        if (!empty($this->extensionBackupPath)) {
            GeneralUtility::rmdir($this->extensionBackupPath, TRUE);
            $this->extensionBackupPath = '';
        }
    }
}