Merge pull request #26717 from nextcloud/fix/copy-etag-node-not-found

Only set copy etag if the destination source can be found

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

@@ -25,6 +25,7 @@
 
 namespace OCA\DAV\Connector\Sabre;
 
+use Sabre\DAV\Exception\NotFound;
 use Sabre\HTTP\RequestInterface;
 use Sabre\HTTP\ResponseInterface;
 
@@ -74,7 +75,13 @@ class CopyEtagHeaderPlugin extends \Sabre\DAV\ServerPlugin {
 	 * @return void
 	 */
 	public function afterMove($source, $destination) {
+		try {
 			$node = $this->server->tree->getNodeForPath($destination);
+		} catch (NotFound $e) {
+			// Don't care
+			return;
+		}
+
 		if ($node instanceof File) {
 			$eTag = $node->getETag();
 			$this->server->httpResponse->setHeader('OC-ETag', $eTag);

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

@@ -29,6 +29,7 @@ namespace OCA\DAV\Tests\unit\Connector\Sabre;
 
 use OCA\DAV\Connector\Sabre\CopyEtagHeaderPlugin;
 use OCA\DAV\Connector\Sabre\File;
+use Sabre\DAV\Exception\NotFound;
 use Sabre\DAV\Server;
 use Sabre\DAV\Tree;
 use Test\TestCase;
@@ -73,6 +74,19 @@ class CopyEtagHeaderPluginTest extends TestCase {
 		$this->assertNull($response->getHeader('OC-Etag'));
 	}
 
+	public function testAfterMoveNodeNotFound(): void {
+		$tree = $this->createMock(Tree::class);
+		$tree->expects(self::once())
+			->method('getNodeForPath')
+			->with('test.txt')
+			->willThrowException(new NotFound());
+
+		$this->server->tree = $tree;
+		$this->plugin->afterMove('', 'test.txt');
+
+		// Nothing to assert, we are just testing if the exception is handled
+	}
+
 	public function testAfterMove() {
 		$node = $this->getMockBuilder(File::class)
 			->disableOriginalConstructor()