nextcloud/apps/files/lib/Collaboration/Resources/ResourceProvider.php

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<?php
/**
* @copyright Copyright (c) 2018 Joas Schilling <coding@schilljs.com>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* 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
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\Files\Collaboration\Resources;
use OCP\Collaboration\Resources\IProvider;
use OCP\Collaboration\Resources\IResource;
use OCP\Collaboration\Resources\ResourceException;
use OCP\Files\IRootFolder;
use OCP\Files\Node;
use OCP\IURLGenerator;
use OCP\IUser;
class ResourceProvider implements IProvider {
const RESOURCE_TYPE = 'files';
/** @var IRootFolder */
protected $rootFolder;
/** @var IURLGenerator */
private $urlGenerator;
/** @var array */
protected $nodes = [];
public function __construct(IRootFolder $rootFolder, IURLGenerator $urlGenerator) {
$this->rootFolder = $rootFolder;
$this->urlGenerator = $urlGenerator;
}
private function getNode(IResource $resource): ?Node {
if (isset($this->nodes[(int) $resource->getId()])) {
return $this->nodes[(int) $resource->getId()];
}
return null;
}
/**
* Get the display name of a resource
*
* @param IResource $resource
* @return string
* @since 15.0.0
*/
public function getName(IResource $resource): string {
if (isset($this->nodes[(int) $resource->getId()])) {
return $this->nodes[(int) $resource->getId()]->getPath();
}
return '';
}
/**
* Can a user/guest access the collection
*
* @param IResource $resource
* @param IUser $user
* @return bool
* @since 15.0.0
*/
public function canAccess(IResource $resource, IUser $user = null): bool {
if (!$user instanceof IUser) {
return false;
}
$userFolder = $this->rootFolder->getUserFolder($user->getUID());
$nodes = $userFolder->getById((int) $resource->getId());
if (!empty($nodes)) {
$this->nodes[(int) $resource->getId()] = array_shift($nodes);
return true;
}
return false;
}
/**
* Get the icon class of a resource
*
* @param IResource $resource
* @return string
* @since 15.0.0
*/
public function getIconClass(IResource $resource): string {
$node = $this->getNode($resource);
if ($node && $node->getMimetype() === 'httpd/unix-directory') {
return 'icon-files-dark';
}
return 'icon-filetype-file';
}
/**
* Get the type of a resource
*
* @param IResource $resource
* @return string
* @since 15.0.0
*/
public function getType(): string {
return self::RESOURCE_TYPE;
}
/**
* Get the link to a resource
*
* @param IResource $resource
* @return string
* @since 15.0.0
*/
public function getLink(IResource $resource): string {
return $this->urlGenerator->linkToRoute('files.viewcontroller.showFile', ['fileid' => $resource->getId()]);
}
}