Serve files with an attachment disposition for new DAV endpoint

This adds a `Content-Disposition: attachment` header to all files served via the DAV endpoint.

1 files changed, 12 insertions, 0 deletions

diff --git a/apps/dav/lib/server.php b/apps/dav/lib/server.php
index 3bf8e155082..0c25890b662 100644
--- a/apps/dav/lib/server.php
+++ b/apps/dav/lib/server.php
@@ -30,6 +30,10 @@ use OCA\DAV\Files\CustomPropertiesBackend;
 use OCP\IRequest;
 use OCP\SabrePluginEvent;
 use Sabre\DAV\Auth\Plugin;
+use Sabre\DAV\IFile;
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+use Sabre\HTTP\Util;
 
 class Server {
 
@@ -104,6 +108,14 @@ class Server {
 			$this->server->addPlugin(new \OCA\DAV\Connector\Sabre\FakeLockerPlugin());
 		}
 
+		// Serve all files with an Content-Disposition of type "attachment"
+		$this->server->on('beforeMethod', function (RequestInterface $requestInterface, ResponseInterface $responseInterface) {
+				$node = $this->server->tree->getNodeForPath($requestInterface->getPath());
+				if (($node instanceof IFile)) {
+					$responseInterface->addHeader('Content-Disposition', 'attachment');
+				}
+		});
+
 		// wait with registering these until auth is handled and the filesystem is setup
 		$this->server->on('beforeMethod', function () {
 			// custom properties plugin must be the last one