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<?php
/**
* @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 OCA\DAV\SystemTag;
use Sabre\DAV\Exception\Forbidden;
use Sabre\DAV\Exception\NotFound;
use Sabre\DAV\Exception\BadRequest;
use Sabre\DAV\Exception\PreconditionFailed;
use Sabre\DAV\ICollection;
use OCP\SystemTag\ISystemTagManager;
use OCP\SystemTag\ISystemTagObjectMapper;
use OCP\SystemTag\ISystemTag;
use OCP\SystemTag\TagNotFoundException;
/**
* Collection containing tags by object id
*/
class SystemTagsObjectMappingCollection implements ICollection {
/**
* @var string
*/
private $objectId;
/**
* @var string
*/
private $objectType;
/**
* @var ISystemTagManager
*/
private $tagManager;
/**
* @var ISystemTagObjectMapper
*/
private $tagMapper;
/**
* Constructor
*
* @param string $objectId object id
* @param string $objectType object type
* @param ISystemTagManager $tagManager
* @param ISystemTagObjectMapper $tagMapper
*/
public function __construct($objectId, $objectType, $tagManager, $tagMapper) {
$this->tagManager = $tagManager;
$this->tagMapper = $tagMapper;
$this->objectId = $objectId;
$this->objectType = $objectType;
}
function createFile($tagId, $data = null) {
try {
$this->tagMapper->assignTags($this->objectId, $this->objectType, $tagId);
} catch (TagNotFoundException $e) {
throw new PreconditionFailed('Tag with id ' . $tagId . ' does not exist, cannot assign');
}
}
function createDirectory($name) {
throw new Forbidden('Permission denied to create collections');
}
function getChild($tagId) {
try {
if ($this->tagMapper->haveTag([$this->objectId], $this->objectType, $tagId, true)) {
$tag = $this->tagManager->getTagsByIds([$tagId]);
return $this->makeNode(current($tag));
}
throw new NotFound('Tag with id ' . $tagId . ' not present for object ' . $this->objectId);
} catch (\InvalidArgumentException $e) {
throw new BadRequest('Invalid tag id', 0, $e);
} catch (TagNotFoundException $e) {
throw new NotFound('Tag with id ' . $tagId . ' not found', 0, $e);
}
}
function getChildren() {
$tagIds = current($this->tagMapper->getTagIdsForObjects([$this->objectId], $this->objectType));
if (empty($tagIds)) {
return [];
}
$tags = $this->tagManager->getTagsByIds($tagIds);
return array_values(array_map(function($tag) {
return $this->makeNode($tag);
}, $tags));
}
function childExists($tagId) {
try {
return ($this->tagMapper->haveTag([$this->objectId], $this->objectType, $tagId, true));
} catch (\InvalidArgumentException $e) {
throw new BadRequest('Invalid tag id', 0, $e);
} catch (TagNotFoundException $e) {
return false;
}
}
function delete() {
throw new Forbidden('Permission denied to delete this collection');
}
function getName() {
return $this->objectId;
}
function setName($name) {
throw new Forbidden('Permission denied to rename this collection');
}
/**
* Returns the last modification time, as a unix timestamp
*
* @return int
*/
function getLastModified() {
return null;
}
/**
* Create a sabre node for the mapping of the
* given system tag to the collection's object
*
* @param ISystemTag $tag
*
* @return SystemTagNode
*/
private function makeNode(ISystemTag $tag) {
return new SystemTagMappingNode(
$tag,
$this->objectId,
$this->objectType,
$this->tagManager,
$this->tagMapper
);
}
}
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