CardDAV first look

rainloop/v/0.0.0/app/libraries/Sabre/DAVACL/Exception/NotRecognizedPrincipal.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace Sabre\DAVACL\Exception;
+
+use Sabre\DAV;
+
+/**
+ * If a client tried to set a privilege assigned to a non-existant principal,
+ * this exception will be thrown.
+ *
+ * @copyright Copyright (C) 2007-2013 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+class NotRecognizedPrincipal extends DAV\Exception\PreconditionFailed {
+
+    /**
+     * Adds in extra information in the xml response.
+     *
+     * This method adds the {DAV:}recognized-principal element as defined in rfc3744
+     *
+     * @param DAV\Server $server
+     * @param \DOMElement $errorNode
+     * @return void
+     */
+    public function serialize(DAV\Server $server,\DOMElement $errorNode) {
+
+        $doc = $errorNode->ownerDocument;
+
+        $np = $doc->createElementNS('DAV:','d:recognized-principal');
+        $errorNode->appendChild($np);
+
+    }
+
+}