1 files changed, 56 insertions, 0 deletions
diff --git a/apps/dav/lib/connector/sabre/copyetagheaderplugin.php b/apps/dav/lib/connector/sabre/copyetagheaderplugin.php
new file mode 100644
index 00000000000..b33b208adad
--- /dev/null
+++ b/apps/dav/lib/connector/sabre/copyetagheaderplugin.php
@@ -0,0 +1,56 @@
+<?php
+/**
+ * @author Vincent Petry <pvince81@owncloud.com>
+ *
+ * @copyright Copyright (c) 2015, ownCloud, Inc.
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License, version 3,
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+namespace OCA\DAV\Connector\Sabre;
+
+use \Sabre\HTTP\RequestInterface;
+use \Sabre\HTTP\ResponseInterface;
+
+/**
+ * Copies the "Etag" header to "OC-Etag" after any request.
+ * This is a workaround for setups that automatically strip
+ * or mangle Etag headers.
+ */
+class CopyEtagHeaderPlugin extends \Sabre\DAV\ServerPlugin {
+	/**
+	 * This initializes the plugin.
+	 *
+	 * @param \Sabre\DAV\Server $server Sabre server
+	 *
+	 * @return void
+	 */
+	public function initialize(\Sabre\DAV\Server $server) {
+		$server->on('afterMethod', array($this, 'afterMethod'));
+	}
+
+	/**
+	 * After method, copy the "Etag" header to "OC-Etag" header.
+	 *
+	 * @param RequestInterface $request request
+	 * @param ResponseInterface $response response
+	 */
+	public function afterMethod(RequestInterface $request, ResponseInterface $response) {
+		$eTag = $response->getHeader('Etag');
+		if (!empty($eTag)) {
+			$response->setHeader('OC-ETag', $eTag);
+		}
+	}
+}