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<?php
declare(strict_types=1);
/**
* SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
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\IPreview;
use OCP\IURLGenerator;
use OCP\IUser;
class ResourceProvider implements IProvider {
public const RESOURCE_TYPE = 'file';
/** @var IRootFolder */
protected $rootFolder;
/** @var IPreview */
private $preview;
/** @var IURLGenerator */
private $urlGenerator;
/** @var array */
protected $nodes = [];
public function __construct(IRootFolder $rootFolder,
IPreview $preview,
IURLGenerator $urlGenerator) {
$this->rootFolder = $rootFolder;
$this->preview = $preview;
$this->urlGenerator = $urlGenerator;
}
private function getNode(IResource $resource): ?Node {
if (isset($this->nodes[(int) $resource->getId()])) {
return $this->nodes[(int) $resource->getId()];
}
$node = $this->rootFolder->getFirstNodeById((int) $resource->getId());
if ($node) {
$this->nodes[(int) $resource->getId()] = $node;
return $this->nodes[(int) $resource->getId()];
}
return null;
}
/**
* @param IResource $resource
* @return array
* @since 16.0.0
*/
public function getResourceRichObject(IResource $resource): array {
if (isset($this->nodes[(int) $resource->getId()])) {
$node = $this->nodes[(int) $resource->getId()]->getPath();
} else {
$node = $this->getNode($resource);
}
if ($node instanceof Node) {
$link = $this->urlGenerator->linkToRouteAbsolute(
'files.viewcontroller.showFile',
['fileid' => $resource->getId()]
);
return [
'type' => 'file',
'id' => $resource->getId(),
'name' => $node->getName(),
'path' => $node->getInternalPath(),
'link' => $link,
'mimetype' => $node->getMimetype(),
'preview-available' => $this->preview->isAvailable($node),
];
}
throw new ResourceException('File not found');
}
/**
* Can a user/guest access the collection
*
* @param IResource $resource
* @param IUser $user
* @return bool
* @since 16.0.0
*/
public function canAccessResource(IResource $resource, ?IUser $user = null): bool {
if (!$user instanceof IUser) {
return false;
}
$userFolder = $this->rootFolder->getUserFolder($user->getUID());
$node = $userFolder->getById((int) $resource->getId());
if ($node) {
$this->nodes[(int) $resource->getId()] = $node;
return true;
}
return false;
}
/**
* Get the resource type of the provider
*
* @return string
* @since 16.0.0
*/
public function getType(): string {
return self::RESOURCE_TYPE;
}
}
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