server/lib/files/cache/scanner.php

78 lines
2.2 KiB
PHP

<?php
/**
* Copyright (c) 2012 Robin Appelman <icewind@owncloud.com>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
namespace OC\Files\Cache;
class Scanner {
const SCAN_RECURSIVE = true;
const SCAN_SHALLOW = false;
/**
* get all the metadata of a file or folder
* *
*
* @param \OC\Files\File $file
* @return array with metadata of the file
*/
public static function getData(\OC\Files\File $file) {
$data = array();
$storage = $file->getStorage();
$path = $file->getInternalPath();
if (!$storage->isReadable($path)) return null; //cant read, nothing we can do
$data['mimetype'] = $storage->getMimeType($path);
$data['mtime'] = $storage->filemtime($path);
if ($data['mimetype'] == 'httpd/unix-directory') {
$data['size'] = -1; //unknown
$data['permissions'] = $storage->getPermissions($path . '/');
} else {
$data['size'] = $storage->filesize($path);
$data['permissions'] = $storage->getPermissions($path);
}
return $data;
}
/**
* scan a single file and store it in the cache
*
* @param \OC\Files\File $file
* @return array with metadata of the scanned file
*/
public static function scanFile(\OC\Files\File $file) {
$data = self::getData($file);
Cache::put($file, $data);
return $data;
}
/**
* scan all the files in a folder and store them in the cache
*
* @param \OC\Files\File $folder
* @param SCAN_RECURSIVE/SCAN_SHALLOW $recursive
* @return int the size of the scanned folder or -1 if the size is unknown at this stage
*/
public static function scan(\OC\Files\File $folder, $recursive) {
$size = 0;
$storage = $folder->getStorage();
$path = $folder->getInternalPath();
if ($dh = $storage->opendir($path)) {
while ($file = readdir($dh)) {
if ($file !== '.' and $file !== '..') {
$child = new \OC\Files\File($storage, $path . '/' . $file);
$data = self::scanFile($child);
if ($recursive === self::SCAN_RECURSIVE and $data['mimetype'] === 'httpd/unix-directory') {
$data['size'] = self::scan($child, self::SCAN_RECURSIVE);
}
if ($data['size'] >= 0 and $size >= 0) {
$size += $data['size'];
}
}
}
}
return $size;
}
}