Return ETag and OC-ETag in case of a move (#25683)

Downstreaming of https://github.com/owncloud/core/pull/25683

Signed-off-by: Lukas Reschke <lukas@statuscode.ch>

apps/dav/lib/Connector/Sabre/CopyEtagHeaderPlugin.php

@@ -32,6 +32,9 @@ use \Sabre\HTTP\ResponseInterface;
  * or mangle Etag headers.
  */
 class CopyEtagHeaderPlugin extends \Sabre\DAV\ServerPlugin {
+
+	/** @var \Sabre\DAV\Server */
+	private $server;
 	/**
 	 * This initializes the plugin.
 	 *
@@ -40,7 +43,10 @@ class CopyEtagHeaderPlugin extends \Sabre\DAV\ServerPlugin {
 	 * @return void
 	 */
 	public function initialize(\Sabre\DAV\Server $server) {
-		$server->on('afterMethod', array($this, 'afterMethod'));
+		$this->server = $server;
+
+		$server->on('afterMethod', [$this, 'afterMethod']);
+		$server->on('afterMove', [$this, 'afterMove']);
 	}
 
 	/**
@@ -55,4 +61,22 @@ class CopyEtagHeaderPlugin extends \Sabre\DAV\ServerPlugin {
 			$response->setHeader('OC-ETag', $eTag);
 		}
 	}
+
+	/**
+	 * Called after a node is moved.
+	 *
+	 * This allows the backend to move all the associated properties.
+	 *
+	 * @param string $source
+	 * @param string $destination
+	 * @return void
+	 */
+	function afterMove($source, $destination) {
+		$node = $this->server->tree->getNodeForPath($destination);
+		if ($node instanceof File) {
+			$eTag = $node->getETag();
+			$this->server->httpResponse->setHeader('OC-ETag', $eTag);
+			$this->server->httpResponse->setHeader('ETag', $eTag);
+		}
+	}
 }

apps/dav/lib/Server.php

@@ -30,13 +30,18 @@ namespace OCA\DAV;
 
 use OCA\DAV\CalDAV\Schedule\IMipPlugin;
 use OCA\DAV\CardDAV\ImageExportPlugin;
+use OCA\DAV\Comments\CommentsPlugin;
 use OCA\DAV\Connector\Sabre\Auth;
 use OCA\DAV\Connector\Sabre\BlockLegacyClientPlugin;
+use OCA\DAV\Connector\Sabre\CopyEtagHeaderPlugin;
 use OCA\DAV\Connector\Sabre\DavAclPlugin;
 use OCA\DAV\Connector\Sabre\DummyGetResponsePlugin;
+use OCA\DAV\Connector\Sabre\FakeLockerPlugin;
 use OCA\DAV\Connector\Sabre\FilesPlugin;
+use OCA\DAV\Connector\Sabre\QuotaPlugin;
 use OCA\DAV\Files\BrowserErrorPagePlugin;
 use OCA\DAV\Files\CustomPropertiesBackend;
+use OCA\DAV\SystemTag\SystemTagPlugin;
 use OCP\IRequest;
 use OCP\SabrePluginEvent;
 use Sabre\CardDAV\VCFExportPlugin;
@@ -121,25 +126,27 @@ class Server {
 		$this->server->addPlugin(new ImageExportPlugin(\OC::$server->getLogger()));
 
 		// system tags plugins
-		$this->server->addPlugin(new \OCA\DAV\SystemTag\SystemTagPlugin(
+		$this->server->addPlugin(new SystemTagPlugin(
 			\OC::$server->getSystemTagManager(),
 			\OC::$server->getGroupManager(),
 			\OC::$server->getUserSession()
 		));
 
 		// comments plugin
-		$this->server->addPlugin(new \OCA\DAV\Comments\CommentsPlugin(
+		$this->server->addPlugin(new CommentsPlugin(
 			\OC::$server->getCommentsManager(),
 			\OC::$server->getUserSession()
 		));
 
+		$this->server->addPlugin(new CopyEtagHeaderPlugin());
+
 		// Some WebDAV clients do require Class 2 WebDAV support (locking), since
 		// we do not provide locking we emulate it using a fake locking plugin.
 		if($request->isUserAgent([
 			'/WebDAVFS/',
 			'/Microsoft Office OneNote 2013/',
 		])) {
-			$this->server->addPlugin(new \OCA\DAV\Connector\Sabre\FakeLockerPlugin());
+			$this->server->addPlugin(new FakeLockerPlugin());
 		}
 
 		if (BrowserErrorPagePlugin::isBrowserRequest($request)) {
@@ -174,8 +181,8 @@ class Server {
 					)
 				);
 				$this->server->addPlugin(
-					new \OCA\DAV\Connector\Sabre\QuotaPlugin($view));
-
+					new QuotaPlugin($view)
+				);
 			}
 		});
 	}

apps/dav/tests/unit/Connector/Sabre/CopyEtagHeaderPluginTest.php

@@ -23,23 +23,28 @@
  */
 namespace OCA\DAV\Tests\unit\Connector\Sabre;
 
+use OCA\DAV\Connector\Sabre\CopyEtagHeaderPlugin;
+use Sabre\DAV\Server;
+use Test\TestCase;
+
 /**
  * Copyright (c) 2015 Vincent Petry <pvince81@owncloud.com>
  * This file is licensed under the Affero General Public License version 3 or
  * later.
  * See the COPYING-README file.
  */
-class CopyEtagHeaderPluginTest extends \Test\TestCase {
+class CopyEtagHeaderPluginTest extends TestCase {
 
-	/**
-	 * @var \OCA\DAV\Connector\Sabre\CopyEtagHeaderPlugin
-	 */
+	/** @var CopyEtagHeaderPlugin */
 	private $plugin;
 
+	/** @var Server */
+	private $server;
+
 	public function setUp() {
 		parent::setUp();
 		$this->server = new \Sabre\DAV\Server();
-		$this->plugin = new \OCA\DAV\Connector\Sabre\CopyEtagHeaderPlugin();
+		$this->plugin = new CopyEtagHeaderPlugin();
 		$this->plugin->initialize($this->server);
 	}
 
@@ -61,4 +66,26 @@ class CopyEtagHeaderPluginTest extends \Test\TestCase {
 
 		$this->assertNull($response->getHeader('OC-Etag'));
 	}
+
+	public function testAfterMove() {
+		$node = $this->getMockBuilder('OCA\DAV\Connector\Sabre\File')
+			->disableOriginalConstructor()
+			->getMock();
+		$node->expects($this->once())
+			->method('getETag')
+			->willReturn('123456');
+		$tree = $this->getMockBuilder('Sabre\DAV\Tree')
+			->disableOriginalConstructor()
+			->getMock();
+		$tree->expects($this->once())
+			->method('getNodeForPath')
+			->with('test.txt')
+			->willReturn($node);
+
+		$this->server->tree = $tree;
+		$this->plugin->afterMove('', 'test.txt');
+
+		$this->assertEquals('123456', $this->server->httpResponse->getHeader('OC-Etag'));
+		$this->assertEquals('123456', $this->server->httpResponse->getHeader('Etag'));
+	}
 }