nextcloud/apps/files/controller/apicontroller.php

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<?php
/**
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* @author Joas Schilling <nickvergessen@owncloud.com>
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* @author Christoph Wurst <christoph@winzerhof-wurst.at>
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* @author Lukas Reschke <lukas@owncloud.com>
* @author Morris Jobke <hey@morrisjobke.de>
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* @author Roeland Jago Douma <rullzer@owncloud.com>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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* @author Tobias Kaminsky <tobias@kaminsky.me>
* @author Vincent Petry <pvince81@owncloud.com>
*
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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* @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\Files\Controller;
use OCP\AppFramework\Http;
use OCP\AppFramework\Controller;
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use OCP\IConfig;
use OCP\IRequest;
use OCP\AppFramework\Http\DataResponse;
use OCP\AppFramework\Http\DataDisplayResponse;
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use OCP\AppFramework\Http\Response;
use OCA\Files\Service\TagService;
use OCP\IPreview;
use OCP\Share\IManager;
use OCP\Files\Node;
use OCP\IUserSession;
/**
* Class ApiController
*
* @package OCA\Files\Controller
*/
class ApiController extends Controller {
/** @var TagService */
private $tagService;
/** @var IManager **/
private $shareManager;
/** @var IPreview */
private $previewManager;
/** IUserSession */
private $userSession;
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/** IConfig */
private $config;
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/**
* @param string $appName
* @param IRequest $request
* @param TagService $tagService
* @param IPreview $previewManager
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*/
public function __construct($appName,
IRequest $request,
IUserSession $userSession,
TagService $tagService,
IPreview $previewManager,
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IManager $shareManager,
IConfig $config) {
parent::__construct($appName, $request);
$this->userSession = $userSession;
$this->tagService = $tagService;
$this->previewManager = $previewManager;
$this->shareManager = $shareManager;
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$this->config = $config;
}
/**
* Gets a thumbnail of the specified file
*
* @since API version 1.0
*
* @NoAdminRequired
* @NoCSRFRequired
*
* @param int $x
* @param int $y
* @param string $file URL-encoded filename
* @return DataResponse|DataDisplayResponse
*/
public function getThumbnail($x, $y, $file) {
if($x < 1 || $y < 1) {
return new DataResponse(['message' => 'Requested size must be numeric and a positive value.'], Http::STATUS_BAD_REQUEST);
}
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$preview = $this->previewManager->createPreview('files/'.$file, $x, $y, true);
if ($preview->valid()) {
return new DataDisplayResponse($preview->data(), Http::STATUS_OK, ['Content-Type' => 'image/png']);
} else {
return new DataResponse(['message' => 'File not found.'], Http::STATUS_NOT_FOUND);
}
}
/**
* Updates the info of the specified file path
* The passed tags are absolute, which means they will
* replace the actual tag selection.
*
* @NoAdminRequired
*
* @param string $path path
* @param array|string $tags array of tags
* @return DataResponse
*/
public function updateFileTags($path, $tags = null) {
$result = [];
// if tags specified or empty array, update tags
if (!is_null($tags)) {
try {
$this->tagService->updateFileTags($path, $tags);
} catch (\OCP\Files\NotFoundException $e) {
return new DataResponse([
'message' => $e->getMessage()
], Http::STATUS_NOT_FOUND);
} catch (\OCP\Files\StorageNotAvailableException $e) {
return new DataResponse([
'message' => $e->getMessage()
], Http::STATUS_SERVICE_UNAVAILABLE);
} catch (\Exception $e) {
return new DataResponse([
'message' => $e->getMessage()
], Http::STATUS_NOT_FOUND);
}
$result['tags'] = $tags;
}
return new DataResponse($result);
}
/**
* Returns a list of all files tagged with the given tag.
*
* @NoAdminRequired
*
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* @param string $tagName tag name to filter by
* @return DataResponse
*/
public function getFilesByTag($tagName) {
$files = array();
$nodes = $this->tagService->getFilesByTag($tagName);
foreach ($nodes as &$node) {
$shareTypes = $this->getShareTypes($node);
$fileInfo = $node->getFileInfo();
$file = \OCA\Files\Helper::formatFileInfo($fileInfo);
$parts = explode('/', dirname($fileInfo->getPath()), 4);
if(isset($parts[3])) {
$file['path'] = '/' . $parts[3];
} else {
$file['path'] = '/';
}
$file['tags'] = [$tagName];
if (!empty($shareTypes)) {
$file['shareTypes'] = $shareTypes;
}
$files[] = $file;
}
return new DataResponse(['files' => $files]);
}
/**
* Return a list of share types for outgoing shares
*
* @param Node $node file node
*
* @return int[] array of share types
*/
private function getShareTypes(Node $node) {
$userId = $this->userSession->getUser()->getUID();
$shareTypes = [];
$requestedShareTypes = [
\OCP\Share::SHARE_TYPE_USER,
\OCP\Share::SHARE_TYPE_GROUP,
\OCP\Share::SHARE_TYPE_LINK,
\OCP\Share::SHARE_TYPE_REMOTE
];
foreach ($requestedShareTypes as $requestedShareType) {
// one of each type is enough to find out about the types
$shares = $this->shareManager->getSharesBy(
$userId,
$requestedShareType,
$node,
false,
1
);
if (!empty($shares)) {
$shareTypes[] = $requestedShareType;
}
}
return $shareTypes;
}
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/**
* Change the default sort mode
*
* @NoAdminRequired
*
* @param string $mode
* @param string $direction
* @return Response
*/
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public function updateFileSorting($mode, $direction) {
$allowedMode = ['name', 'size', 'mtime'];
$allowedDirection = ['asc', 'desc'];
if (!in_array($mode, $allowedMode) || !in_array($direction, $allowedDirection)) {
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$response = new Response();
$response->setStatus(Http::STATUS_UNPROCESSABLE_ENTITY);
return $response;
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}
$this->config->setUserValue($this->userSession->getUser()->getUID(), 'files', 'file_sorting', $mode);
$this->config->setUserValue($this->userSession->getUser()->getUID(), 'files', 'file_sorting_direction', $direction);
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return new Response();
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}
}