174 lines
4.6 KiB
PHP
174 lines
4.6 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Lukas Reschke <lukas@statuscode.ch>
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* @author Vincent Petry <pvince81@owncloud.com>
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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 OCA\DAV\SystemTag;
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use Sabre\DAV\Exception\Forbidden;
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use Sabre\DAV\Exception\NotFound;
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use Sabre\DAV\Exception\MethodNotAllowed;
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use Sabre\DAV\Exception\Conflict;
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use OCP\SystemTag\ISystemTag;
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use OCP\SystemTag\ISystemTagManager;
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use OCP\SystemTag\TagNotFoundException;
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use OCP\SystemTag\TagAlreadyExistsException;
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use OCP\IUser;
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/**
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* DAV node representing a system tag, with the name being the tag id.
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*/
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class SystemTagNode implements \Sabre\DAV\INode {
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/**
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* @var ISystemTag
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*/
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protected $tag;
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/**
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* @var ISystemTagManager
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*/
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protected $tagManager;
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/**
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* User
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*
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* @var IUser
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*/
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protected $user;
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/**
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* Whether to allow permissions for admins
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*
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* @var bool
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*/
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protected $isAdmin;
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/**
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* Sets up the node, expects a full path name
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*
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* @param ISystemTag $tag system tag
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* @param IUser $user user
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* @param bool $isAdmin whether to allow operations for admins
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* @param ISystemTagManager $tagManager tag manager
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*/
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public function __construct(ISystemTag $tag, IUser $user, $isAdmin, ISystemTagManager $tagManager) {
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$this->tag = $tag;
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$this->user = $user;
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$this->isAdmin = $isAdmin;
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$this->tagManager = $tagManager;
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}
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/**
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* Returns the id of the tag
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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 $this->tag->getId();
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}
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/**
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* Returns the system tag represented by this node
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*
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* @return ISystemTag system tag
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*/
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public function getSystemTag() {
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return $this->tag;
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}
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/**
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* Renames the node
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*
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* @param string $name The new name
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*
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* @throws MethodNotAllowed not allowed to rename node
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*/
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public function setName($name) {
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throw new MethodNotAllowed();
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}
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/**
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* Update tag
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*
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* @param string $name new tag name
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* @param bool $userVisible user visible
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* @param bool $userAssignable user assignable
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* @throws NotFound whenever the given tag id does not exist
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* @throws Forbidden whenever there is no permission to update said tag
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* @throws Conflict whenever a tag already exists with the given attributes
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*/
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public function update($name, $userVisible, $userAssignable) {
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try {
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if (!$this->tagManager->canUserSeeTag($this->tag, $this->user)) {
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throw new NotFound('Tag with id ' . $this->tag->getId() . ' does not exist');
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}
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if (!$this->tagManager->canUserAssignTag($this->tag, $this->user)) {
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throw new Forbidden('No permission to update tag ' . $this->tag->getId());
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}
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// only admin is able to change permissions, regular users can only rename
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if (!$this->isAdmin) {
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// only renaming is allowed for regular users
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if ($userVisible !== $this->tag->isUserVisible()
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|| $userAssignable !== $this->tag->isUserAssignable()
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) {
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throw new Forbidden('No permission to update permissions for tag ' . $this->tag->getId());
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}
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}
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$this->tagManager->updateTag($this->tag->getId(), $name, $userVisible, $userAssignable);
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} catch (TagNotFoundException $e) {
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throw new NotFound('Tag with id ' . $this->tag->getId() . ' does not exist');
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} catch (TagAlreadyExistsException $e) {
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throw new Conflict(
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'Tag with the properties "' . $name . '", ' .
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$userVisible . ', ' . $userAssignable . ' already exists'
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);
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}
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}
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/**
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* Returns null, not supported
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*
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*/
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public function getLastModified() {
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return null;
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}
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public function delete() {
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try {
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if (!$this->tagManager->canUserSeeTag($this->tag, $this->user)) {
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throw new NotFound('Tag with id ' . $this->tag->getId() . ' not found');
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}
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if (!$this->tagManager->canUserAssignTag($this->tag, $this->user)) {
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throw new Forbidden('No permission to delete tag ' . $this->tag->getId());
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}
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$this->tagManager->deleteTags($this->tag->getId());
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} catch (TagNotFoundException $e) {
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// can happen if concurrent deletion occurred
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throw new NotFound('Tag with id ' . $this->tag->getId() . ' not found', 0, $e);
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}
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}
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}
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