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<?php |
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/** |
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* @copyright Copyright (c) 2016, ownCloud, Inc. |
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* |
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* @author Bernhard Posselt <[email protected]> |
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* @author Joas Schilling <[email protected]> |
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* @author Morris Jobke <[email protected]> |
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* @author Robin Appelman <[email protected]> |
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* @author Roeland Jago Douma <[email protected]> |
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* @author Vincent Petry <[email protected]> |
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* |
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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 OC\Files\Node; |
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use OC\Files\Filesystem; |
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use OCP\Files\FileInfo; |
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use OCP\Files\InvalidPathException; |
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use OCP\Files\NotFoundException; |
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use OCP\Files\NotPermittedException; |
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// FIXME: this class really should be abstract |
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class Node implements \OCP\Files\Node { |
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/** |
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* @var \OC\Files\View $view |
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*/ |
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protected $view; |
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/** |
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* @var \OC\Files\Node\Root $root |
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*/ |
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protected $root; |
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/** |
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* @var string $path |
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*/ |
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protected $path; |
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/** |
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* @var \OCP\Files\FileInfo |
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*/ |
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protected $fileInfo; |
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/** |
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* @param \OC\Files\View $view |
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* @param \OCP\Files\IRootFolder $root |
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* @param string $path |
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* @param FileInfo $fileInfo |
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*/ |
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public function __construct($root, $view, $path, $fileInfo = null) { |
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$this->view = $view; |
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$this->root = $root; |
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$this->path = $path; |
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$this->fileInfo = $fileInfo; |
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} |
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/** |
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* Creates a Node of the same type that represents a non-existing path |
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* |
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* @param string $path path |
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* @return string non-existing node class |
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*/ |
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protected function createNonExistingNode($path) { |
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throw new \Exception('Must be implemented by subclasses'); |
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} |
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/** |
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* Returns the matching file info |
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* |
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* @return FileInfo |
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* @throws InvalidPathException |
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* @throws NotFoundException |
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*/ |
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public function getFileInfo() { |
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if (!Filesystem::isValidPath($this->path)) { |
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throw new InvalidPathException(); |
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} |
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if (!$this->fileInfo) { |
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$fileInfo = $this->view->getFileInfo($this->path); |
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if ($fileInfo instanceof FileInfo) { |
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$this->fileInfo = $fileInfo; |
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} else { |
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throw new NotFoundException(); |
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} |
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} |
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return $this->fileInfo; |
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} |
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/** |
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* @param string[] $hooks |
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*/ |
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protected function sendHooks($hooks) { |
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foreach ($hooks as $hook) { |
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$this->root->emit('\OC\Files', $hook, array($this)); |
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} |
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} |
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/** |
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* @param int $permissions |
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* @return bool |
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*/ |
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protected function checkPermissions($permissions) { |
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return ($this->getPermissions() & $permissions) === $permissions; |
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} |
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public function delete() { |
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} |
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/** |
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* @param int $mtime |
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* @throws \OCP\Files\NotPermittedException |
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*/ |
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public function touch($mtime = null) { |
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if ($this->checkPermissions(\OCP\Constants::PERMISSION_UPDATE)) { |
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$this->sendHooks(array('preTouch')); |
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$this->view->touch($this->path, $mtime); |
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$this->sendHooks(array('postTouch')); |
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if ($this->fileInfo) { |
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if (is_null($mtime)) { |
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$mtime = time(); |
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} |
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$this->fileInfo['mtime'] = $mtime; |
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} |
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} else { |
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throw new NotPermittedException(); |
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} |
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} |
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/** |
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* @return \OC\Files\Storage\Storage |
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* @throws \OCP\Files\NotFoundException |
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*/ |
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public function getStorage() { |
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list($storage,) = $this->view->resolvePath($this->path); |
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return $storage; |
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} |
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/** |
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* @return string |
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*/ |
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public function getPath() { |
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return $this->path; |
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} |
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/** |
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* @return string |
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*/ |
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public function getInternalPath() { |
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list(, $internalPath) = $this->view->resolvePath($this->path); |
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return $internalPath; |
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} |
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/** |
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* @return int |
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* @throws InvalidPathException |
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* @throws NotFoundException |
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*/ |
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public function getId() { |
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return $this->getFileInfo()->getId(); |
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} |
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/** |
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* @return array |
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*/ |
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public function stat() { |
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return $this->view->stat($this->path); |
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} |
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/** |
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* @return int |
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* @throws InvalidPathException |
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* @throws NotFoundException |
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*/ |
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public function getMTime() { |
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return $this->getFileInfo()->getMTime(); |
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} |
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/** |
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* @return int |
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* @throws InvalidPathException |
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* @throws NotFoundException |
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*/ |
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public function getSize() { |
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return $this->getFileInfo()->getSize(); |
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} |
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/** |
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* @return string |
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* @throws InvalidPathException |
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* @throws NotFoundException |
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*/ |
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public function getEtag() { |
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return $this->getFileInfo()->getEtag(); |
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} |
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/** |
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* @return int |
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* @throws InvalidPathException |
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* @throws NotFoundException |
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*/ |
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public function getPermissions() { |
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return $this->getFileInfo()->getPermissions(); |
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} |
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/** |
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* @return bool |
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* @throws InvalidPathException |
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* @throws NotFoundException |
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*/ |
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public function isReadable() { |
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return $this->getFileInfo()->isReadable(); |
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} |
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/** |
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* @return bool |
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* @throws InvalidPathException |
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* @throws NotFoundException |
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*/ |
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public function isUpdateable() { |
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return $this->getFileInfo()->isUpdateable(); |
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} |
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/** |
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* @return bool |
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* @throws InvalidPathException |
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* @throws NotFoundException |
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*/ |
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public function isDeletable() { |
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return $this->getFileInfo()->isDeletable(); |
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} |
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/** |
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* @return bool |
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* @throws InvalidPathException |
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* @throws NotFoundException |
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*/ |
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public function isShareable() { |
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return $this->getFileInfo()->isShareable(); |
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} |
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/** |
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* @return bool |
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* @throws InvalidPathException |
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* @throws NotFoundException |
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*/ |
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public function isCreatable() { |
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return $this->getFileInfo()->isCreatable(); |
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} |
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/** |
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* @return Node |
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*/ |
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public function getParent() { |
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$newPath = dirname($this->path); |
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if ($newPath === '' || $newPath === '.' || $newPath === '/') { |
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return $this->root; |
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} |
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return $this->root->get($newPath); |
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} |
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/** |
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* @return string |
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*/ |
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public function getName() { |
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return basename($this->path); |
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} |
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/** |
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* @param string $path |
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* @return string |
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*/ |
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protected function normalizePath($path) { |
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if ($path === '' or $path === '/') { |
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return '/'; |
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} |
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//no windows style slashes |
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$path = str_replace('\\', '/', $path); |
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//add leading slash |
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if ($path[0] !== '/') { |
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$path = '/' . $path; |
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} |
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//remove duplicate slashes |
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while (strpos($path, '//') !== false) { |
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$path = str_replace('//', '/', $path); |
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} |
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//remove trailing slash |
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$path = rtrim($path, '/'); |
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return $path; |
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} |
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/** |
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* check if the requested path is valid |
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* |
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* @param string $path |
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* @return bool |
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*/ |
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public function isValidPath($path) { |
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if (!$path || $path[0] !== '/') { |
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$path = '/' . $path; |
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} |
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if (strstr($path, '/../') || strrchr($path, '/') === '/..') { |
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return false; |
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} |
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return true; |
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} |
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public function isMounted() { |
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return $this->getFileInfo()->isMounted(); |
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} |
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public function isShared() { |
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return $this->getFileInfo()->isShared(); |
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} |
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public function getMimeType() { |
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return $this->getFileInfo()->getMimetype(); |
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} |
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public function getMimePart() { |
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return $this->getFileInfo()->getMimePart(); |
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} |
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public function getType() { |
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return $this->getFileInfo()->getType(); |
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} |
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public function isEncrypted() { |
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return $this->getFileInfo()->isEncrypted(); |
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} |
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public function getMountPoint() { |
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return $this->getFileInfo()->getMountPoint(); |
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} |
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public function getOwner() { |
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return $this->getFileInfo()->getOwner(); |
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} |
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public function getChecksum() { |
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} |
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public function getExtension(): string { |
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return $this->getFileInfo()->getExtension(); |
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} |
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/** |
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* @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE |
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* @throws \OCP\Lock\LockedException |
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*/ |
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public function lock($type) { |
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$this->view->lockFile($this->path, $type); |
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} |
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/** |
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* @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE |
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* @throws \OCP\Lock\LockedException |
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*/ |
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public function changeLock($type) { |
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$this->view->changeLock($this->path, $type); |
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} |
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/** |
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* @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE |
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* @throws \OCP\Lock\LockedException |
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*/ |
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public function unlock($type) { |
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$this->view->unlockFile($this->path, $type); |
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} |
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/** |
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* @param string $targetPath |
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* @throws \OCP\Files\NotPermittedException if copy not allowed or failed |
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* @return \OC\Files\Node\Node |
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*/ |
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public function copy($targetPath) { |
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$targetPath = $this->normalizePath($targetPath); |
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$parent = $this->root->get(dirname($targetPath)); |
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if ($parent instanceof Folder and $this->isValidPath($targetPath) and $parent->isCreatable()) { |
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|
|
$nonExisting = $this->createNonExistingNode($targetPath); |
395
|
|
|
$this->root->emit('\OC\Files', 'preCopy', [$this, $nonExisting]); |
396
|
|
|
$this->root->emit('\OC\Files', 'preWrite', [$nonExisting]); |
397
|
|
|
if (!$this->view->copy($this->path, $targetPath)) { |
398
|
|
|
throw new NotPermittedException('Could not copy ' . $this->path . ' to ' . $targetPath); |
399
|
|
|
} |
400
|
|
|
$targetNode = $this->root->get($targetPath); |
401
|
|
|
$this->root->emit('\OC\Files', 'postCopy', [$this, $targetNode]); |
402
|
|
|
$this->root->emit('\OC\Files', 'postWrite', [$targetNode]); |
403
|
|
|
return $targetNode; |
404
|
|
|
} else { |
405
|
|
|
throw new NotPermittedException('No permission to copy to path ' . $targetPath); |
406
|
|
|
} |
407
|
|
|
} |
408
|
|
|
|
409
|
|
|
/** |
410
|
|
|
* @param string $targetPath |
411
|
|
|
* @throws \OCP\Files\NotPermittedException if move not allowed or failed |
412
|
|
|
* @return \OC\Files\Node\Node |
413
|
|
|
*/ |
414
|
|
|
public function move($targetPath) { |
415
|
|
|
$targetPath = $this->normalizePath($targetPath); |
416
|
|
|
$parent = $this->root->get(dirname($targetPath)); |
417
|
|
|
if ($parent instanceof Folder and $this->isValidPath($targetPath) and $parent->isCreatable()) { |
|
|
|
|
418
|
|
|
$nonExisting = $this->createNonExistingNode($targetPath); |
419
|
|
|
$this->root->emit('\OC\Files', 'preRename', [$this, $nonExisting]); |
420
|
|
|
$this->root->emit('\OC\Files', 'preWrite', [$nonExisting]); |
421
|
|
|
if (!$this->view->rename($this->path, $targetPath)) { |
422
|
|
|
throw new NotPermittedException('Could not move ' . $this->path . ' to ' . $targetPath); |
423
|
|
|
} |
424
|
|
|
$targetNode = $this->root->get($targetPath); |
425
|
|
|
$this->root->emit('\OC\Files', 'postRename', [$this, $targetNode]); |
426
|
|
|
$this->root->emit('\OC\Files', 'postWrite', [$targetNode]); |
427
|
|
|
$this->path = $targetPath; |
428
|
|
|
return $targetNode; |
429
|
|
|
} else { |
430
|
|
|
throw new NotPermittedException('No permission to move to path ' . $targetPath); |
431
|
|
|
} |
432
|
|
|
} |
433
|
|
|
|
434
|
|
|
} |
435
|
|
|
|
Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a given class or a super-class is assigned to a property that is type hinted more strictly.
Either this assignment is in error or an instanceof check should be added for that assignment.