feat(files-app-integration): create and register stub plugin

Signed-off-by: David Lima <[email protected]>

Author: AntDavidLima

appinfo/info.xml

@@ -90,4 +90,13 @@ Developed with ❤️ by [LibreCode](https://librecode.coop). Help us transform
             <route>libresign.page.index</route>
         </navigation>
     </navigations>
+	<sabre>
+		<plugins>
+			<plugin>OCA\Libresign\Dav\SignatureStatusPlugin</plugin>
+		</plugins>
+	</sabre>
+	<types>
+		<filesystem/>
+		<dav/>
+	</types>
 </info>

lib/Dav/SignatureStatusPlugin.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace OCA\Libresign\Dav;
+
+use Sabre\DAV\INode;
+use Sabre\DAV\PropFind;
+use Sabre\DAV\Server;
+use Sabre\DAV\ServerPlugin;
+
+class SignatureStatusPlugin extends ServerPlugin {
+	protected $server;
+
+	public function initialize(Server $server) {
+		$this->server = $server;
+		$server->on('propFind', [$this, 'propFind']);
+	}
+
+	public function propFind(PropFind $propFind, INode $node) {
+		$propFind->handle('{http://nextcloud.org/ns}node-name', $node->getName());
+	}
+}