adding OC-ETag header

1 files changed, 16 insertions, 0 deletions

diff --git a/lib/private/connector/sabre/node.php b/lib/private/connector/sabre/node.php
index 6fc66377ba8..2ac7363a15e 100644
--- a/lib/private/connector/sabre/node.php
+++ b/lib/private/connector/sabre/node.php
@@ -270,4 +270,20 @@ abstract class OC_Connector_Sabre_Node implements \Sabre\DAV\INode, \Sabre\DAV\I
 		}
 		return $p;
 	}
+
+	/**
+	 * Returns the ETag for a file
+	 *
+	 * An ETag is a unique identifier representing the current version of the
+	 * file. If the file changes, the ETag MUST change.  The ETag is an
+	 * arbitrary string, but MUST be surrounded by double-quotes.
+	 *
+	 * Return null if the ETag can not effectively be determined
+	 *
+	 * @return mixed
+	 */
+	public function getETag() {
+		return '"' . $this->info->getEtag() . '"';
+	}
+
 }