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<?php
/**
* @author Arthur Schiwon <blizzz@owncloud.com>
* @author Bart Visscher <bartv@thisnet.nl>
* @author Björn Schießle <schiessle@owncloud.com>
* @author Jakob Sack <mail@jakobsack.de>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin Appelman <icewind@owncloud.com>
* @author Thomas Müller <thomas.mueller@tmit.eu>
* @author Vincent Petry <pvince81@owncloud.com>
*
* @copyright Copyright (c) 2015, ownCloud, Inc.
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program 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, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OC\Connector\Sabre;
class Directory extends \OC\Connector\Sabre\Node
implements \Sabre\DAV\ICollection, \Sabre\DAV\IQuota {
/**
* Cached directory content
*
* @var \OCP\Files\FileInfo[]
*/
private $dirContent;
/**
* Cached quota info
*
* @var array
*/
private $quotaInfo;
/**
* Creates a new file in the directory
*
* Data will either be supplied as a stream resource, or in certain cases
* as a string. Keep in mind that you may have to support either.
*
* After successful creation of the file, you may choose to return the ETag
* of the new file here.
*
* The returned ETag must be surrounded by double-quotes (The quotes should
* be part of the actual string).
*
* If you cannot accurately determine the ETag, you should not return it.
* If you don't store the file exactly as-is (you're transforming it
* somehow) you should also not return an ETag.
*
* This means that if a subsequent GET to this new file does not exactly
* return the same contents of what was submitted here, you are strongly
* recommended to omit the ETag.
*
* @param string $name Name of the file
* @param resource|string $data Initial payload
* @throws \Sabre\DAV\Exception\Forbidden
* @return null|string
*/
public function createFile($name, $data = null) {
try {
// for chunked upload also updating a existing file is a "createFile"
// because we create all the chunks before re-assemble them to the existing file.
if (isset($_SERVER['HTTP_OC_CHUNKED'])) {
// exit if we can't create a new file and we don't updatable existing file
$info = \OC_FileChunking::decodeName($name);
if (!$this->fileView->isCreatable($this->path) &&
!$this->fileView->isUpdatable($this->path . '/' . $info['name'])
) {
throw new \Sabre\DAV\Exception\Forbidden();
}
} else {
// For non-chunked upload it is enough to check if we can create a new file
if (!$this->fileView->isCreatable($this->path)) {
throw new \Sabre\DAV\Exception\Forbidden();
}
}
$path = $this->fileView->getAbsolutePath($this->path) . '/' . $name;
// using a dummy FileInfo is acceptable here since it will be refreshed after the put is complete
$info = new \OC\Files\FileInfo($path, null, null, array(), null);
$node = new \OC\Connector\Sabre\File($this->fileView, $info);
return $node->put($data);
} catch (\OCP\Files\StorageNotAvailableException $e) {
throw new \Sabre\DAV\Exception\ServiceUnavailable($e->getMessage());
}
}
/**
* Creates a new subdirectory
*
* @param string $name
* @throws \Sabre\DAV\Exception\Forbidden
* @return void
*/
public function createDirectory($name) {
try {
if (!$this->info->isCreatable()) {
throw new \Sabre\DAV\Exception\Forbidden();
}
$newPath = $this->path . '/' . $name;
if (!$this->fileView->mkdir($newPath)) {
throw new \Sabre\DAV\Exception\Forbidden('Could not create directory ' . $newPath);
}
} catch (\OCP\Files\StorageNotAvailableException $e) {
throw new \Sabre\DAV\Exception\ServiceUnavailable($e->getMessage());
}
}
/**
* Returns a specific child node, referenced by its name
*
* @param string $name
* @param \OCP\Files\FileInfo $info
* @throws \Sabre\DAV\Exception\FileNotFound
* @return \Sabre\DAV\INode
*/
public function getChild($name, $info = null) {
$path = $this->path . '/' . $name;
if (is_null($info)) {
try {
$info = $this->fileView->getFileInfo($path);
} catch (\OCP\Files\StorageNotAvailableException $e) {
throw new \Sabre\DAV\Exception\ServiceUnavailable($e->getMessage());
}
}
if (!$info) {
throw new \Sabre\DAV\Exception\NotFound('File with name ' . $path . ' could not be located');
}
if ($info['mimetype'] == 'httpd/unix-directory') {
$node = new \OC\Connector\Sabre\Directory($this->fileView, $info);
} else {
$node = new \OC\Connector\Sabre\File($this->fileView, $info);
}
return $node;
}
/**
* Returns an array with all the child nodes
*
* @return \Sabre\DAV\INode[]
*/
public function getChildren() {
if (!is_null($this->dirContent)) {
return $this->dirContent;
}
$folderContent = $this->fileView->getDirectoryContent($this->path);
$nodes = array();
foreach ($folderContent as $info) {
$node = $this->getChild($info->getName(), $info);
$nodes[] = $node;
}
$this->dirContent = $nodes;
return $this->dirContent;
}
/**
* Checks if a child exists.
*
* @param string $name
* @return bool
*/
public function childExists($name) {
// note: here we do NOT resolve the chunk file name to the real file name
// to make sure we return false when checking for file existence with a chunk
// file name.
// This is to make sure that "createFile" is still triggered
// (required old code) instead of "updateFile".
//
// TODO: resolve chunk file name here and implement "updateFile"
$path = $this->path . '/' . $name;
return $this->fileView->file_exists($path);
}
/**
* Deletes all files in this directory, and then itself
*
* @return void
* @throws \Sabre\DAV\Exception\Forbidden
*/
public function delete() {
if (!$this->info->isDeletable()) {
throw new \Sabre\DAV\Exception\Forbidden();
}
if (!$this->fileView->rmdir($this->path)) {
// assume it wasn't possible to remove due to permission issue
throw new \Sabre\DAV\Exception\Forbidden();
}
}
/**
* Returns available diskspace information
*
* @return array
*/
public function getQuotaInfo() {
if ($this->quotaInfo) {
return $this->quotaInfo;
}
try {
$storageInfo = \OC_Helper::getStorageInfo($this->info->getPath(), $this->info);
$this->quotaInfo = array(
$storageInfo['used'],
$storageInfo['free']
);
return $this->quotaInfo;
} catch (\OCP\Files\StorageNotAvailableException $e) {
return array(0, 0);
}
}
}
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