298 lines
9.1 KiB
PHP
298 lines
9.1 KiB
PHP
<?php
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/**
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* @author Björn Schießle <schiessle@owncloud.com>
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* @author Joas Schilling <nickvergessen@owncloud.com>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Robin Appelman <icewind@owncloud.com>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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* @author Vincent Petry <pvince81@owncloud.com>
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*
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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* @license AGPL-3.0
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*
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* This code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License, version 3,
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
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*/
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namespace OCA\DAV\Connector\Sabre;
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use OCA\DAV\Connector\Sabre\Exception\Forbidden;
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use OCA\DAV\Connector\Sabre\Exception\InvalidPath;
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use OCA\DAV\Connector\Sabre\Exception\FileLocked;
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use OC\Files\FileInfo;
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use OC\Files\Mount\MoveableMount;
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use OCP\Files\ForbiddenException;
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use OCP\Files\StorageInvalidException;
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use OCP\Files\StorageNotAvailableException;
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use OCP\Lock\LockedException;
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class ObjectTree extends \Sabre\DAV\Tree {
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/**
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* @var \OC\Files\View
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*/
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protected $fileView;
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/**
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* @var \OCP\Files\Mount\IMountManager
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*/
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protected $mountManager;
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/**
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* Creates the object
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*/
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public function __construct() {
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}
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/**
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* @param \Sabre\DAV\INode $rootNode
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* @param \OC\Files\View $view
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* @param \OCP\Files\Mount\IMountManager $mountManager
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*/
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public function init(\Sabre\DAV\INode $rootNode, \OC\Files\View $view, \OCP\Files\Mount\IMountManager $mountManager) {
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$this->rootNode = $rootNode;
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$this->fileView = $view;
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$this->mountManager = $mountManager;
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}
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/**
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* If the given path is a chunked file name, converts it
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* to the real file name. Only applies if the OC-CHUNKED header
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* is present.
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*
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* @param string $path chunk file path to convert
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*
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* @return string path to real file
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*/
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private function resolveChunkFile($path) {
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if (isset($_SERVER['HTTP_OC_CHUNKED'])) {
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// resolve to real file name to find the proper node
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list($dir, $name) = \Sabre\HTTP\URLUtil::splitPath($path);
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if ($dir == '/' || $dir == '.') {
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$dir = '';
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}
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$info = \OC_FileChunking::decodeName($name);
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// only replace path if it was really the chunked file
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if (isset($info['transferid'])) {
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// getNodePath is called for multiple nodes within a chunk
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// upload call
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$path = $dir . '/' . $info['name'];
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$path = ltrim($path, '/');
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}
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}
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return $path;
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}
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public function cacheNode(Node $node) {
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$this->cache[trim($node->getPath(), '/')] = $node;
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}
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/**
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* Returns the INode object for the requested path
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*
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* @param string $path
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* @return \Sabre\DAV\INode
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* @throws InvalidPath
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* @throws \Sabre\DAV\Exception\Locked
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* @throws \Sabre\DAV\Exception\NotFound
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* @throws \Sabre\DAV\Exception\ServiceUnavailable
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*/
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public function getNodeForPath($path) {
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if (!$this->fileView) {
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throw new \Sabre\DAV\Exception\ServiceUnavailable('filesystem not setup');
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}
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$path = trim($path, '/');
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if (isset($this->cache[$path])) {
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return $this->cache[$path];
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}
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if ($path) {
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try {
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$this->fileView->verifyPath($path, basename($path));
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} catch (\OCP\Files\InvalidPathException $ex) {
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throw new InvalidPath($ex->getMessage());
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}
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}
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// Is it the root node?
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if (!strlen($path)) {
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return $this->rootNode;
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}
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if (pathinfo($path, PATHINFO_EXTENSION) === 'part') {
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// read from storage
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$absPath = $this->fileView->getAbsolutePath($path);
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$mount = $this->fileView->getMount($path);
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$storage = $mount->getStorage();
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$internalPath = $mount->getInternalPath($absPath);
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if ($storage && $storage->file_exists($internalPath)) {
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/**
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* @var \OC\Files\Storage\Storage $storage
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*/
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// get data directly
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$data = $storage->getMetaData($internalPath);
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$info = new FileInfo($absPath, $storage, $internalPath, $data, $mount);
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} else {
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$info = null;
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}
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} else {
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// resolve chunk file name to real name, if applicable
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$path = $this->resolveChunkFile($path);
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// read from cache
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try {
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$info = $this->fileView->getFileInfo($path);
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} catch (StorageNotAvailableException $e) {
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throw new \Sabre\DAV\Exception\ServiceUnavailable('Storage not available');
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} catch (StorageInvalidException $e) {
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throw new \Sabre\DAV\Exception\NotFound('Storage ' . $path . ' is invalid');
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} catch (LockedException $e) {
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throw new \Sabre\DAV\Exception\Locked();
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}
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}
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if (!$info) {
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throw new \Sabre\DAV\Exception\NotFound('File with name ' . $path . ' could not be located');
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}
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if ($info->getType() === 'dir') {
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$node = new \OCA\DAV\Connector\Sabre\Directory($this->fileView, $info, $this);
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} else {
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$node = new \OCA\DAV\Connector\Sabre\File($this->fileView, $info);
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}
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$this->cache[$path] = $node;
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return $node;
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}
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/**
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* Moves a file from one location to another
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*
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* @param string $sourcePath The path to the file which should be moved
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* @param string $destinationPath The full destination path, so not just the destination parent node
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* @throws \Sabre\DAV\Exception\BadRequest
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* @throws \Sabre\DAV\Exception\ServiceUnavailable
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* @throws \Sabre\DAV\Exception\Forbidden
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* @return int
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*/
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public function move($sourcePath, $destinationPath) {
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if (!$this->fileView) {
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throw new \Sabre\DAV\Exception\ServiceUnavailable('filesystem not setup');
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}
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$targetNodeExists = $this->nodeExists($destinationPath);
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$sourceNode = $this->getNodeForPath($sourcePath);
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if ($sourceNode instanceof \Sabre\DAV\ICollection && $targetNodeExists) {
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throw new \Sabre\DAV\Exception\Forbidden('Could not copy directory ' . $sourceNode->getName() . ', target exists');
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}
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list($sourceDir,) = \Sabre\HTTP\URLUtil::splitPath($sourcePath);
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list($destinationDir,) = \Sabre\HTTP\URLUtil::splitPath($destinationPath);
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$isMovableMount = false;
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$sourceMount = $this->mountManager->find($this->fileView->getAbsolutePath($sourcePath));
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$internalPath = $sourceMount->getInternalPath($this->fileView->getAbsolutePath($sourcePath));
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if ($sourceMount instanceof MoveableMount && $internalPath === '') {
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$isMovableMount = true;
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}
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try {
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$sameFolder = ($sourceDir === $destinationDir);
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// if we're overwriting or same folder
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if ($targetNodeExists || $sameFolder) {
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// note that renaming a share mount point is always allowed
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if (!$this->fileView->isUpdatable($destinationDir) && !$isMovableMount) {
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throw new \Sabre\DAV\Exception\Forbidden();
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}
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} else {
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if (!$this->fileView->isCreatable($destinationDir)) {
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throw new \Sabre\DAV\Exception\Forbidden();
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}
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}
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if (!$sameFolder) {
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// moving to a different folder, source will be gone, like a deletion
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// note that moving a share mount point is always allowed
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if (!$this->fileView->isDeletable($sourcePath) && !$isMovableMount) {
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throw new \Sabre\DAV\Exception\Forbidden();
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}
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}
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$fileName = basename($destinationPath);
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try {
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$this->fileView->verifyPath($destinationDir, $fileName);
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} catch (\OCP\Files\InvalidPathException $ex) {
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throw new InvalidPath($ex->getMessage());
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}
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$renameOkay = $this->fileView->rename($sourcePath, $destinationPath);
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if (!$renameOkay) {
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throw new \Sabre\DAV\Exception\Forbidden('');
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}
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} catch (StorageNotAvailableException $e) {
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throw new \Sabre\DAV\Exception\ServiceUnavailable($e->getMessage());
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} catch (ForbiddenException $ex) {
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throw new Forbidden($ex->getMessage(), $ex->getRetry());
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} catch (LockedException $e) {
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throw new FileLocked($e->getMessage(), $e->getCode(), $e);
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}
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$this->markDirty($sourceDir);
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$this->markDirty($destinationDir);
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}
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/**
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* Copies a file or directory.
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*
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* This method must work recursively and delete the destination
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* if it exists
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*
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* @param string $source
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* @param string $destination
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* @throws \Sabre\DAV\Exception\ServiceUnavailable
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* @return void
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*/
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public function copy($source, $destination) {
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if (!$this->fileView) {
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throw new \Sabre\DAV\Exception\ServiceUnavailable('filesystem not setup');
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}
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// this will trigger existence check
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$this->getNodeForPath($source);
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list($destinationDir, $destinationName) = \Sabre\HTTP\URLUtil::splitPath($destination);
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try {
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$this->fileView->verifyPath($destinationDir, $destinationName);
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} catch (\OCP\Files\InvalidPathException $ex) {
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throw new InvalidPath($ex->getMessage());
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}
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try {
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$this->fileView->copy($source, $destination);
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} catch (StorageNotAvailableException $e) {
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throw new \Sabre\DAV\Exception\ServiceUnavailable($e->getMessage());
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} catch (ForbiddenException $ex) {
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throw new Forbidden($ex->getMessage(), $ex->getRetry());
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} catch (LockedException $e) {
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throw new FileLocked($e->getMessage(), $e->getCode(), $e);
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}
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list($destinationDir,) = \Sabre\HTTP\URLUtil::splitPath($destination);
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$this->markDirty($destinationDir);
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}
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}
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