FileHandlingUtility.php

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

use TYPO3\CMS\Core\Utility\PathUtility;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Extensionmanager\Domain\Model\Extension;
use TYPO3\CMS\Extensionmanager\Exception\ExtensionManagerException;
use TYPO3\CMS\Lang\LanguageService;

class FileHandlingUtility implements \TYPO3\CMS\Core\SingletonInterface {

    protected $emConfUtility;

    protected $installUtility;

    public function initializeObject() {
        $this->getLanguageService()->includeLLFile('EXT:lang/locallang_mod_tools_em.xlf');
    }

    public function unpackExtensionFromExtensionDataArray(array $extensionData, Extension $extension = NULL, $pathType = 'Local') {
        $extensionDir = $this->makeAndClearExtensionDir($extensionData['extKey'], $pathType);
        $files = $this->extractFilesArrayFromExtensionData($extensionData);
        $directories = $this->extractDirectoriesFromExtensionData($files);
        $files = array_diff_key($files, array_flip($directories));
        $this->createDirectoriesForExtensionFiles($directories, $extensionDir);
        $this->writeExtensionFiles($files, $extensionDir);
        $this->writeEmConfToFile($extensionData, $extensionDir, $extension);
    }

    protected function extractDirectoriesFromExtensionData(array $files) {
        $directories = array();
        foreach ($files as $filePath => $file) {
            preg_match('/(.*)\\//', $filePath, $matches);
            if (!empty($matches[0])) {
                $directories[] = $matches[0];
            }
        }
        return array_unique($directories);
    }

    protected function extractFilesArrayFromExtensionData(array $extensionData) {
        return $extensionData['FILES'];
    }

    protected function createDirectoriesForExtensionFiles(array $directories, $rootPath) {
        foreach ($directories as $directory) {
            $this->createNestedDirectory($rootPath . $directory);
        }
    }

    protected function createNestedDirectory($directory) {
        try {
            GeneralUtility::mkdir_deep($directory);
        } catch(\RuntimeException $exception) {
            throw new ExtensionManagerException(
                sprintf($this->getLanguageService()->getLL('clearMakeExtDir_could_not_create_dir'), $this->getRelativePath($directory)),
                1337280416
            );
        }

    }

    protected function writeExtensionFiles(array $files, $rootPath) {
        foreach ($files as $file) {
            GeneralUtility::writeFile($rootPath . $file['name'], $file['content']);
        }
    }

    protected function makeAndClearExtensionDir($extensionKey, $pathType = 'Local') {
        $extDirPath = $this->getExtensionDir($extensionKey, $pathType);
        if (is_dir($extDirPath)) {
            $this->removeDirectory($extDirPath);
        }
        $this->addDirectory($extDirPath);

        return $extDirPath;
    }

    public function getExtensionDir($extensionKey, $pathType = 'Local') {
        $paths = Extension::returnInstallPaths();
        $path = $paths[$pathType];
        if (!$path || !is_dir($path) || !$extensionKey) {
            throw new ExtensionManagerException(sprintf('ERROR: The extension install path "%s" was no directory!', $this->getRelativePath($path)), 1337280417);
        }

        return $path . $extensionKey . '/';
    }

    protected function addDirectory($extDirPath) {
        GeneralUtility::mkdir($extDirPath);
        if (!is_dir($extDirPath)) {
            throw new ExtensionManagerException(
                sprintf($this->getLanguageService()->getLL('clearMakeExtDir_could_not_create_dir'), $this->getRelativePath($extDirPath)),
                1337280418
            );
        }
    }

    public function ensureConfiguredDirectoriesExist(array $extension) {
        foreach ($this->getAbsolutePathsToConfiguredDirectories($extension) as $directory) {
            if (!$this->directoryExists($directory)) {
                $this->createNestedDirectory($directory);
            }
        }
    }

    protected function directoryExists($directory) {
        return is_dir($directory);
    }

    protected function getAbsolutePathsToConfiguredDirectories(array $extension) {
        $requestedDirectories = array();
        $requestUploadFolder = isset($extension['uploadfolder']) ? (boolean)$extension['uploadfolder'] : FALSE;
        if ($requestUploadFolder) {
            $requestedDirectories[] = $this->getAbsolutePath($this->getPathToUploadFolder($extension));
        }

        $requestCreateDirectories = empty($extension['createDirs']) ? FALSE : (string)$extension['createDirs'];
        if ($requestCreateDirectories) {
            foreach (GeneralUtility::trimExplode(',', $extension['createDirs']) as $directoryToCreate) {
                $requestedDirectories[] = $this->getAbsolutePath($directoryToCreate);
            }
        }

        return $requestedDirectories;
    }

    protected function getPathToUploadFolder($extension) {
        return 'uploads/tx_' . str_replace('_', '', $extension['key']) . '/';
    }

    public function removeDirectory($extDirPath) {
        $extDirPath = GeneralUtility::fixWindowsFilePath($extDirPath);
        $extensionPathWithoutTrailingSlash = rtrim($extDirPath, '/');
        if (is_link($extensionPathWithoutTrailingSlash) && TYPO3_OS !== 'WIN') {
            $result = unlink($extensionPathWithoutTrailingSlash);
        } else {
            $result = GeneralUtility::rmdir($extDirPath, TRUE);
        }
        if ($result === FALSE) {
            throw new ExtensionManagerException(
                sprintf($this->getLanguageService()->getLL('clearMakeExtDir_could_not_remove_dir'), $this->getRelativePath($extDirPath)),
                1337280415
            );
        }
    }

    protected function writeEmConfToFile(array $extensionData, $rootPath, Extension $extension = NULL) {
        $emConfFileData = array();
        if (file_exists($rootPath . 'ext_emconf.php')) {
            $emConfFileData = $this->emConfUtility->includeEmConf(
                array(
                    'key' => $extensionData['extKey'],
                    'siteRelPath' => PathUtility::stripPathSitePrefix($rootPath)
                )
            );
        }
        $extensionData['EM_CONF'] = array_replace_recursive($emConfFileData, $extensionData['EM_CONF']);
        $emConfContent = $this->emConfUtility->constructEmConf($extensionData, $extension);
        GeneralUtility::writeFile($rootPath . 'ext_emconf.php', $emConfContent);
    }

    public function isValidExtensionPath($path) {
        $allowedPaths = Extension::returnAllowedInstallPaths();
        foreach ($allowedPaths as $allowedPath) {
            if (GeneralUtility::isFirstPartOfStr($path, $allowedPath)) {
                return TRUE;
            }
        }
        return FALSE;
    }

    protected function getAbsolutePath($relativePath) {
        $absolutePath = GeneralUtility::getFileAbsFileName(GeneralUtility::resolveBackPath(PATH_site . $relativePath));
        if (empty($absolutePath)) {
            throw new ExtensionManagerException('Illegal relative path given', 1350742864);
        }
        return $absolutePath;
    }

    protected function getRelativePath($absolutePath) {
        return PathUtility::stripPathSitePrefix($absolutePath);
    }

    public function getAbsoluteExtensionPath($extension) {
        $extension = $this->installUtility->enrichExtensionWithDetails($extension);
        $absolutePath = $this->getAbsolutePath($extension['siteRelPath']);
        return $absolutePath;
    }

    public function getExtensionVersion($extension) {
        $extensionData = $this->installUtility->enrichExtensionWithDetails($extension);
        $version = $extensionData['version'];
        return $version;
    }

    public function createZipFileFromExtension($extension) {

        $extensionPath = $this->getAbsoluteExtensionPath($extension);

        // Add trailing slash to the extension path, getAllFilesAndFoldersInPath explicitly requires that.
        $extensionPath = PathUtility::sanitizeTrailingSeparator($extensionPath);

        $version = $this->getExtensionVersion($extension);
        if (empty($version)) {
            $version =  '0.0.0';
        }

        $fileName = $this->getAbsolutePath('typo3temp/' . $extension . '_' . $version . '_' . date('YmdHi') . '.zip');

        $zip = new \ZipArchive();
        $zip->open($fileName, \ZipArchive::CREATE);

        $excludePattern = $GLOBALS['TYPO3_CONF_VARS']['EXT']['excludeForPackaging'];

        // Get all the files of the extension, but exclude the ones specified in the excludePattern
        $files = GeneralUtility::getAllFilesAndFoldersInPath(
            array(),            // No files pre-added
            $extensionPath,     // Start from here
            '',                 // Do not filter files by extension
            TRUE,               // Include subdirectories
            PHP_INT_MAX,        // Recursion level
            $excludePattern     // Files and directories to exclude.
        );

        // Make paths relative to extension root directory.
        $files = GeneralUtility::removePrefixPathFromList($files, $extensionPath);

        // Remove the one empty path that is the extension dir itself.
        $files = array_filter($files);

        foreach ($files as $file) {
            $fullPath = $extensionPath . $file;
            // Distinguish between files and directories, as creation of the archive
            // fails on Windows when trying to add a directory with "addFile".
            if (is_dir($fullPath)) {
                $zip->addEmptyDir($file);
            } else {
                $zip->addFile($fullPath, $file);
            }
        }

        $zip->close();
        return $fileName;
    }

    public function unzipExtensionFromFile($file, $fileName, $pathType = 'Local') {
        $extensionDir = $this->makeAndClearExtensionDir($fileName, $pathType);
        $zip = zip_open($file);
        if (is_resource($zip)) {
            while (($zipEntry = zip_read($zip)) !== FALSE) {
                if (strpos(zip_entry_name($zipEntry), '/') !== FALSE) {
                    $last = strrpos(zip_entry_name($zipEntry), '/');
                    $dir = substr(zip_entry_name($zipEntry), 0, $last);
                    $file = substr(zip_entry_name($zipEntry), strrpos(zip_entry_name($zipEntry), '/') + 1);
                    if (!is_dir($extensionDir . $dir)) {
                        GeneralUtility::mkdir_deep($extensionDir . $dir);
                    }
                    if (strlen(trim($file)) > 0) {
                        $return = GeneralUtility::writeFile($extensionDir . $dir . '/' . $file, zip_entry_read($zipEntry, zip_entry_filesize($zipEntry)));
                        if ($return === FALSE) {
                            throw new ExtensionManagerException('Could not write file ' . $this->getRelativePath($file), 1344691048);
                        }
                    }
                } else {
                    GeneralUtility::writeFile($extensionDir . zip_entry_name($zipEntry), zip_entry_read($zipEntry, zip_entry_filesize($zipEntry)));
                }
            }
        } else {
            throw new ExtensionManagerException('Unable to open zip file ' . $this->getRelativePath($file), 1344691049);
        }
    }

    public function sendZipFileToBrowserAndDelete($fileName, $downloadName = '') {
        if ($downloadName === '') {
            $downloadName = basename($fileName, '.zip');
        }
        header('Content-Type: application/zip');
        header('Content-Length: ' . filesize($fileName));
        header('Content-Disposition: attachment; filename="' . $downloadName . '.zip"');
        readfile($fileName);
        unlink($fileName);
        die;
    }

    public function sendSqlDumpFileToBrowserAndDelete($fileName, $downloadName = '') {
        if ($downloadName === '') {
            $downloadName = basename($fileName, '.sql');
        } else {
            $downloadName = basename($downloadName, '.sql');
        }
        header('Content-Type: text');
        header('Content-Length: ' . filesize($fileName));
        header('Content-Disposition: attachment; filename="' . $downloadName . '.sql"');
        readfile($fileName);
        unlink($fileName);
        die;
    }

    protected function getLanguageService() {
        return $GLOBALS['LANG'];
    }

}