AbstractDriver.php

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<?php
namespace TYPO3\CMS\Core\Resource\Driver;

use TYPO3\CMS\Core\Resource\FileInterface;
use TYPO3\CMS\Core\Resource\Folder;
use TYPO3\CMS\Core\Utility\PathUtility;

abstract class AbstractDriver implements DriverInterface {

    /*******************
     * CAPABILITIES
     *******************/
    protected $capabilities = 0;


    protected $storageUid;

    protected $supportedHashAlgorithms = array();

    protected $configuration = array();

    public function __construct(array $configuration = array()) {
        $this->configuration = $configuration;
    }

    protected function isValidFilename($fileName) {
        if (strpos($fileName, '/') !== FALSE) {
            return FALSE;
        }
        if (!preg_match('/^[\\pL\\d[:blank:]._-]*$/u', $fileName)) {
            return FALSE;
        }
        return TRUE;
    }

    public function setStorageUid($storageUid) {
        $this->storageUid = $storageUid;
    }

    public function getCapabilities() {
        return $this->capabilities;
    }

    public function hasCapability($capability) {
        return $this->capabilities & $capability == $capability;
    }

    /*******************
     * FILE FUNCTIONS
     *******************/

    protected function getTemporaryPathForFile($fileIdentifier) {
        return \TYPO3\CMS\Core\Utility\GeneralUtility::tempnam('fal-tempfile-', '.' . PathUtility::pathinfo($fileIdentifier, PATHINFO_EXTENSION));
    }

    public function hashIdentifier($identifier) {
        $identifier = $this->canonicalizeAndCheckFileIdentifier($identifier);
        return sha1($identifier);
    }

    public function sanitizeFileName($fileName, $charset = '') {
        return $fileName;
    }

    public function isCaseSensitiveFileSystem() {
        if (isset($this->configuration['caseSensitive'])) {
            return (bool)$this->configuration['caseSensitive'];
        }
        return TRUE;
    }

    abstract protected function canonicalizeAndCheckFilePath($filePath);

    abstract protected function canonicalizeAndCheckFileIdentifier($fileIdentifier);

    abstract protected function canonicalizeAndCheckFolderIdentifier($folderIdentifier);

}