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Initial draft at sharing file uploads through Nextcloud
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Leon Klingele
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Apr 13, 2017
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,120 @@ | ||
| <?php | ||
| /** | ||
| * Nextcloud - spreedme | ||
| * | ||
| * This file is licensed under the Affero General Public License version 3 or | ||
| * later. See the COPYING file. | ||
| * | ||
| * @author Leon <[email protected]> | ||
| * @copyright struktur AG 2016 | ||
| */ | ||
|
|
||
| namespace OCA\SpreedME\Controller; | ||
|
|
||
| use OCA\SpreedME\Errors\ErrorCodes; | ||
| use OCA\SpreedME\Helper\Helper; | ||
| use OCA\SpreedME\Settings\Settings; | ||
| use OCP\AppFramework\Controller; | ||
| use OCP\AppFramework\Http\DataResponse; | ||
| use OCP\Files\IRootFolder; | ||
| use OCP\ILogger; | ||
| use OCP\IRequest; | ||
|
|
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| class FileTransferController extends Controller { | ||
|
|
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| private $logger; | ||
| private $rootFolder; | ||
|
|
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| public function __construct($appName, IRequest $request, $userId, ILogger $logger, IRootFolder $rootFolder) { | ||
| parent::__construct($appName, $request); | ||
|
|
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| $this->logger = $logger; | ||
| $this->rootFolder = $rootFolder; | ||
| } | ||
|
|
||
| /** | ||
| * @NoAdminRequired | ||
| * @PublicPage | ||
| */ | ||
| public function uploadAndShare($target) { | ||
| $_response = array('success' => false); | ||
| $target = stripslashes($target); // TODO(leon): Is this really required? Found it somewhere | ||
|
|
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| // TODO(leon): Validate token! | ||
|
|
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| if (!Helper::areFileTransferUploadsAllowed() || !Helper::doesServiceUserExist()) { | ||
| $_response['error'] = ErrorCodes::FILETRANSFER_DISABLED; | ||
| } else { | ||
| try { | ||
| $file = $this->request->getUploadedFile('file'); | ||
| if (empty($file)) { | ||
| throw new \Exception('No file uploaded'); | ||
| } | ||
| $fileName = $file['name']; | ||
| if (is_array($fileName)) { | ||
| // TODO(leon): We should support multiple file_s_ | ||
| throw new \Exception('Only a single file may be uploaded'); | ||
| } | ||
| if ($file['error'] !== UPLOAD_ERR_OK) { | ||
| throw new \Exception('Upload error: ' . $file['error']); | ||
| } | ||
| // TODO(leon): We don't need this check? | ||
| if (!is_uploaded_file($file['tmp_name'])) { | ||
| throw new \Exception('Uploaded file is not an uploaded file?'); | ||
| } | ||
| if ($file['size'] > Helper::getServiceUserMaxUploadSize()) { | ||
| throw new \Exception('Uploaded file is too big'); | ||
| } | ||
| // Validate file extension | ||
| // Keep in sync with SUPPORTED_DOCUMENT_TYPES | ||
| $allowedFileExtensions = array( | ||
| '.pdf', | ||
| '.odf', | ||
| ); | ||
| $isAllowedFileExtension = false; | ||
| foreach ($allowedFileExtensions as $extension) { | ||
| if (stripos(strrev($fileName), strrev($extension)) === 0) { | ||
| // Found allowed extension | ||
| $isAllowedFileExtension = true; | ||
| break; | ||
| } | ||
| } | ||
| if (!$isAllowedFileExtension) { | ||
| throw new \Exception('Unsupported file extension'); | ||
| } | ||
|
|
||
| $serviceUserFolder = $this->rootFolder->getUserFolder(Settings::SPREEDME_SERVICEUSER_USERNAME); | ||
| $uploadFolder = $serviceUserFolder | ||
| ->newFolder(Settings::SPREEDME_SERVICEUSER_UPLOADFOLDER) | ||
| ->newFolder($target); | ||
| $newFile = $uploadFolder->newFile($fileName); | ||
| $newFile->putContent(file_get_contents($file['tmp_name'])); | ||
|
|
||
| $shareToken = Helper::runAsServiceUser(function () use ($newFile) { | ||
| return \OCP\Share::shareItem( | ||
| 'file', | ||
| $newFile->getId(), | ||
| \OCP\Share::SHARE_TYPE_LINK, | ||
| null, /* shareWith */ | ||
| \OCP\Constants::PERMISSION_READ, | ||
| null, /* itemSourceName */ | ||
| null/* expirationDate, TODO(leon): Add support for this */ | ||
| ); | ||
| }); | ||
|
|
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| if (!is_string($shareToken)) { | ||
| throw new \Exception('Failed to share uploaded file'); | ||
| } | ||
|
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| $_response['token'] = $shareToken; | ||
| $_response['success'] = true; | ||
| } catch (\Exception $e) { | ||
| $this->logger->logException($e, ['app' => Settings::APP_ID]); | ||
| $_response['error'] = ErrorCodes::FILETRANSFER_FAILED; | ||
| } | ||
| } | ||
|
|
||
| return new DataResponse($_response); | ||
| } | ||
|
|
||
| } |
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