Make permalinks work for trashed files (#24537)

Opening a permalink that points to a trashed file will now display the
file within the "Deleted Files" section in the files web UI.

apps/files/appinfo/application.php

@@ -59,7 +59,8 @@ class Application extends App {
 				$server->getConfig(),
 				$server->getEventDispatcher(),
 				$server->getUserSession(),
-				$server->getUserFolder()
+				$server->getAppManager(),
+				$server->getRootFolder()
 			);
 		});
 

apps/files/controller/viewcontroller.php

@@ -39,6 +39,7 @@ use OCP\IUserSession;
 use Symfony\Component\EventDispatcher\EventDispatcherInterface;
 use OCP\AppFramework\Http\NotFoundResponse;
 use OCP\Files\Folder;
+use OCP\App\IAppManager;
 
 /**
  * Class ViewController
@@ -62,8 +63,10 @@ class ViewController extends Controller {
 	protected $eventDispatcher;
 	/** @var IUserSession */
 	protected $userSession;
+	/** @var IAppManager */
+	protected $appManager;
 	/** @var \OCP\Files\Folder */
-	protected $userFolder;
+	protected $rootFolder;
 
 	/**
 	 * @param string $appName
@@ -74,7 +77,8 @@ class ViewController extends Controller {
 	 * @param IConfig $config
 	 * @param EventDispatcherInterface $eventDispatcherInterface
 	 * @param IUserSession $userSession
-	 * @param Folder $userFolder
+	 * @param IAppManager $appManager
+	 * @param Folder $rootFolder
 	 */
 	public function __construct($appName,
 								IRequest $request,
@@ -84,7 +88,8 @@ class ViewController extends Controller {
 								IConfig $config,
 								EventDispatcherInterface $eventDispatcherInterface,
 								IUserSession $userSession,
-								Folder $userFolder
+								IAppManager $appManager,
+								Folder $rootFolder
 	) {
 		parent::__construct($appName, $request);
 		$this->appName = $appName;
@@ -95,7 +100,8 @@ class ViewController extends Controller {
 		$this->config = $config;
 		$this->eventDispatcher = $eventDispatcherInterface;
 		$this->userSession = $userSession;
-		$this->userFolder = $userFolder;
+		$this->appManager = $appManager;
+		$this->rootFolder = $rootFolder;
 	}
 
 	/**
@@ -265,22 +271,34 @@ class ViewController extends Controller {
 	 * @NoAdminRequired
 	 */
 	public function showFile($fileId) {
-		$files = $this->userFolder->getById($fileId);
+		try {
+			$uid = $this->userSession->getUser()->getUID();
+			$baseFolder = $this->rootFolder->get($uid . '/files/');
+			$files = $baseFolder->getById($fileId);
 			$params = [];
 
+			if (empty($files) && $this->appManager->isEnabledForUser('files_trashbin')) {
+				$baseFolder = $this->rootFolder->get($uid . '/files_trashbin/files/');
+				$files = $baseFolder->getById($fileId);
+				$params['view'] = 'trashbin';
+			}
+
 			if (!empty($files)) {
 				$file = current($files);
 				if ($file instanceof Folder) {
 					// set the full path to enter the folder
-				$params['dir'] = $this->userFolder->getRelativePath($file->getPath());
+					$params['dir'] = $baseFolder->getRelativePath($file->getPath());
 				} else {
 					// set parent path as dir
-				$params['dir'] = $this->userFolder->getRelativePath($file->getParent()->getPath());
+					$params['dir'] = $baseFolder->getRelativePath($file->getParent()->getPath());
 					// and scroll to the entry
 					$params['scrollto'] = $file->getName();
 				}
 				return new RedirectResponse($this->urlGenerator->linkToRoute('files.view.index', $params));
 			}
+		} catch (\OCP\Files\NotFoundException $e) {
+			return new NotFoundResponse();
+		}
 		return new NotFoundResponse();
 	}
 }

apps/files/tests/controller/ViewControllerTest.php

@@ -37,6 +37,7 @@ use OCP\IConfig;
 use OCP\IUserSession;
 use Symfony\Component\EventDispatcher\EventDispatcherInterface;
 use OCP\Files\Folder;
+use OCP\App\IAppManager;
 
 /**
  * Class ViewControllerTest
@@ -62,8 +63,10 @@ class ViewControllerTest extends TestCase {
 	private $user;
 	/** @var IUserSession */
 	private $userSession;
+	/** @var IAppManager */
+	private $appManager;
 	/** @var Folder */
-	private $userFolder;
+	private $rootFolder;
 
 	public function setUp() {
 		parent::setUp();
@@ -74,11 +77,15 @@ class ViewControllerTest extends TestCase {
 		$this->config = $this->getMock('\OCP\IConfig');
 		$this->eventDispatcher = $this->getMock('\Symfony\Component\EventDispatcher\EventDispatcherInterface');
 		$this->userSession = $this->getMock('\OCP\IUserSession');
+		$this->appManager = $this->getMock('\OCP\App\IAppManager');
 		$this->user = $this->getMock('\OCP\IUser');
+		$this->user->expects($this->any())
+			->method('getUID')
+			->will($this->returnValue('testuser1'));
 		$this->userSession->expects($this->any())
 			->method('getUser')
 			->will($this->returnValue($this->user));
-		$this->userFolder = $this->getMock('\OCP\Files\Folder');
+		$this->rootFolder = $this->getMock('\OCP\Files\Folder');
 		$this->viewController = $this->getMockBuilder('\OCA\Files\Controller\ViewController')
 			->setConstructorArgs([
 			'files',
@@ -89,7 +96,8 @@ class ViewControllerTest extends TestCase {
 			$this->config,
 			$this->eventDispatcher,
 			$this->userSession,
-			$this->userFolder
+			$this->appManager,
+			$this->rootFolder
 		])
 		->setMethods([
 			'getStorageInfo',
@@ -307,15 +315,22 @@ class ViewControllerTest extends TestCase {
 		$node = $this->getMock('\OCP\Files\Folder');
 		$node->expects($this->once())
 			->method('getPath')
-			->will($this->returnValue('/user/files/test/sub'));
+			->will($this->returnValue('/testuser1/files/test/sub'));
 
-		$this->userFolder->expects($this->at(0))
+		$baseFolder = $this->getMock('\OCP\Files\Folder');
+
+		$this->rootFolder->expects($this->once())
+			->method('get')
+			->with('testuser1/files/')
+			->will($this->returnValue($baseFolder));
+
+		$baseFolder->expects($this->at(0))
 			->method('getById')
 			->with(123)
 			->will($this->returnValue([$node]));
-		$this->userFolder->expects($this->at(1))
+		$baseFolder->expects($this->at(1))
 			->method('getRelativePath')
-			->with('/user/files/test/sub')
+			->with('/testuser1/files/test/sub')
 			->will($this->returnValue('/test/sub'));
 
 		$this->urlGenerator
@@ -339,7 +354,14 @@ class ViewControllerTest extends TestCase {
 		$parentNode = $this->getMock('\OCP\Files\Folder');
 		$parentNode->expects($this->once())
 			->method('getPath')
-			->will($this->returnValue('/user/files/test'));
+			->will($this->returnValue('testuser1/files/test'));
+
+		$baseFolder = $this->getMock('\OCP\Files\Folder');
+
+		$this->rootFolder->expects($this->once())
+			->method('get')
+			->with('testuser1/files/')
+			->will($this->returnValue($baseFolder));
 
 		$node = $this->getMock('\OCP\Files\File');
 		$node->expects($this->once())
@@ -349,13 +371,13 @@ class ViewControllerTest extends TestCase {
 			->method('getName')
 			->will($this->returnValue('somefile.txt'));
 
-		$this->userFolder->expects($this->at(0))
+		$baseFolder->expects($this->at(0))
 			->method('getById')
 			->with(123)
 			->will($this->returnValue([$node]));
-		$this->userFolder->expects($this->at(1))
+		$baseFolder->expects($this->at(1))
 			->method('getRelativePath')
-			->with('/user/files/test')
+			->with('testuser1/files/test')
 			->will($this->returnValue('/test'));
 
 		$this->urlGenerator
@@ -376,7 +398,13 @@ class ViewControllerTest extends TestCase {
 	 * @dataProvider showFileMethodProvider
 	 */
 	public function testShowFileRouteWithInvalidFileId($useShowFile) {
-		$this->userFolder->expects($this->at(0))
+		$baseFolder = $this->getMock('\OCP\Files\Folder');
+		$this->rootFolder->expects($this->once())
+			->method('get')
+			->with('testuser1/files/')
+			->will($this->returnValue($baseFolder));
+
+		$baseFolder->expects($this->at(0))
 			->method('getById')
 			->with(123)
 			->will($this->returnValue([]));
@@ -388,4 +416,66 @@ class ViewControllerTest extends TestCase {
 			$this->assertEquals($expected, $this->viewController->index('/whatever', '', '123'));
 		}
 	}
+
+	/**
+	 * @dataProvider showFileMethodProvider
+	 */
+	public function testShowFileRouteWithTrashedFile($useShowFile) {
+		$this->appManager->expects($this->once())
+			->method('isEnabledForUser')
+			->with('files_trashbin')
+			->will($this->returnValue(true));
+
+		$parentNode = $this->getMock('\OCP\Files\Folder');
+		$parentNode->expects($this->once())
+			->method('getPath')
+			->will($this->returnValue('testuser1/files_trashbin/files/test.d1462861890/sub'));
+
+		$baseFolderFiles = $this->getMock('\OCP\Files\Folder');
+		$baseFolderTrash = $this->getMock('\OCP\Files\Folder');
+
+		$this->rootFolder->expects($this->at(0))
+			->method('get')
+			->with('testuser1/files/')
+			->will($this->returnValue($baseFolderFiles));
+		$this->rootFolder->expects($this->at(1))
+			->method('get')
+			->with('testuser1/files_trashbin/files/')
+			->will($this->returnValue($baseFolderTrash));
+
+		$baseFolderFiles->expects($this->once())
+			->method('getById')
+			->with(123)
+			->will($this->returnValue([]));
+
+		$node = $this->getMock('\OCP\Files\File');
+		$node->expects($this->once())
+			->method('getParent')
+			->will($this->returnValue($parentNode));
+		$node->expects($this->once())
+			->method('getName')
+			->will($this->returnValue('somefile.txt'));
+
+		$baseFolderTrash->expects($this->at(0))
+			->method('getById')
+			->with(123)
+			->will($this->returnValue([$node]));
+		$baseFolderTrash->expects($this->at(1))
+			->method('getRelativePath')
+			->with('testuser1/files_trashbin/files/test.d1462861890/sub')
+			->will($this->returnValue('/test.d1462861890/sub'));
+
+		$this->urlGenerator
+			->expects($this->once())
+			->method('linkToRoute')
+			->with('files.view.index', ['view' => 'trashbin', 'dir' => '/test.d1462861890/sub', 'scrollto' => 'somefile.txt'])
+			->will($this->returnValue('/apps/files/?view=trashbin&dir=/test.d1462861890/sub&scrollto=somefile.txt'));
+
+		$expected = new Http\RedirectResponse('/apps/files/?view=trashbin&dir=/test.d1462861890/sub&scrollto=somefile.txt');
+		if ($useShowFile) {
+			$this->assertEquals($expected, $this->viewController->showFile(123));
+		} else {
+			$this->assertEquals($expected, $this->viewController->index('/whatever', '', '123'));
+		}
+	}
 }