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<?php
/**
* ownCloud
*
* @author Michael Gapczynski
* @copyright 2012 Michael Gapczynski mtgap@owncloud.com
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
*
* You should have received a copy of the GNU Affero General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
namespace OC\Files\Cache;
/**
* Metadata cache for shared files
*
* don't use this class directly if you need to get metadata, use \OC\Files\Filesystem::getFileInfo instead
*/
class Shared_Cache extends Cache {
private $files = array();
/**
* @brief Get the source cache of a shared file or folder
* @param string Shared target file path
* @return \OC\Files\Storage\Cache
*/
private function getSourceCache($target) {
$source = \OC_Share_Backend_File::getSource($target);
if (isset($source['path'])) {
$source['path'] = '/'.$source['uid_owner'].'/'.$source['path'];
\OC\Files\Filesystem::initMountPoints($source['uid_owner']);
list($storage, $internalPath) = \OC\Files\Filesystem::resolvePath($source['path']);
$this->files[$target] = $internalPath;
return $storage->getCache();
}
return false;
}
/**
* get the stored metadata of a file or folder
*
* @param string/int $file
* @return array
*/
public function get($file) {
if (is_string($file)) {
if ($cache = $this->getSourceCache($file)) {
return $cache->get($this->files[$file]);
}
} else {
$query = \OC_DB::prepare(
'SELECT `fileid`, `storage`, `path`, `parent`, `name`, `mimetype`, `mimepart`, `size`, `mtime`, `encrypted`
FROM `*PREFIX*filecache` WHERE `fileid` = ?');
$result = $query->execute(array($file));
$data = $result->fetchRow();
$data['fileid'] = (int)$data['fileid'];
$data['size'] = (int)$data['size'];
$data['mtime'] = (int)$data['mtime'];
$data['encrypted'] = (bool)$data['encrypted'];
return $data;
}
return false;
}
/**
* get the metadata of all files stored in $folder
*
* @param string $folder
* @return array
*/
public function getFolderContents($folder) {
if ($folder == '') {
return \OCP\Share::getItemsSharedWith('file', \OC_Share_Backend_File::FORMAT_GET_FOLDER_CONTENTS);
} else {
return $this->getSourceCache($folder)->getFolderContents('/'.$this->files[$folder]);
}
}
/**
* store meta data for a file or folder
*
* @param string $file
* @param array $data
*
* @return int file id
*/
public function put($file, array $data) {
if ($cache = $this->getSourceCache($file)) {
return $cache->put($this->files[$file]);
}
return false;
}
/**
* get the file id for a file
*
* @param string $file
* @return int
*/
public function getId($file) {
if ($cache = $this->getSourceCache($file)) {
return $cache->getId($this->files[$file]);
}
return -1;
}
/**
* remove a file or folder from the cache
*
* @param string $file
*/
public function remove($file) {
if ($cache = $this->getSourceCache($file)) {
$cache->remove($this->files[$file]);
}
}
/**
* Move a file or folder in the cache
*
* @param string $source
* @param string $target
*/
public function move($source, $target) {
if ($cache = $this->getSourceCache($source)) {
$targetPath = \OC_Share_Backend_File::getSourcePath(dirname($target));
if ($targetPath) {
$targetPath .= '/'.basename($target);
$cache->move($this->files[$source], $targetPath);
}
}
}
/**
* remove all entries for files that are stored on the storage from the cache
*/
public function clear() {
// Not a valid action for Shared Cache
}
/**
* @param string $file
*
* @return int, Cache::NOT_FOUND, Cache::PARTIAL, Cache::SHALLOW or Cache::COMPLETE
*/
public function getStatus($file) {
if ($cache = $this->getSourceCache($file)) {
return $cache->getStatus($this->files[$file]);
}
return false;
}
/**
* search for files matching $pattern
*
* @param string $pattern
* @return array of file data
*/
public function search($pattern) {
// TODO
}
/**
* search for files by mimetype
*
* @param string $part1
* @param string $part2
* @return array
*/
public function searchByMime($mimetype) {
if (strpos($mimetype, '/')) {
$where = '`mimetype` = ?';
} else {
$where = '`mimepart` = ?';
}
$ids = $this->getAll();
$placeholders = join(',', array_fill(0, count($ids), '?'));
$query = \OC_DB::prepare('
SELECT `fileid`, `storage`, `path`, `parent`, `name`, `mimetype`, `mimepart`, `size`, `mtime`, `encrypted`
FROM `*PREFIX*filecache` WHERE ' . $where . ' AND `fileid` IN = ('.$placeholders.')'
);
$result = $query->execute(array_merge(array($mimetype), $ids));
return $result->fetchAll();
}
/**
* get the size of a folder and set it in the cache
*
* @param string $path
* @return int
*/
public function calculateFolderSize($path) {
if ($cache = $this->getSourceCache($path)) {
return $cache->calculateFolderSize($this->files[$path]);
}
return 0;
}
/**
* get all file ids on the files on the storage
*
* @return int[]
*/
public function getAll() {
return OCP\Share::getItemsSharedWith('file', \OC_Share_Backend_File::FORMAT_GET_ALL);
}
}
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