1 files changed, 34 insertions, 0 deletions
diff --git a/lib/util.php b/lib/util.php
index 9ce974619bc..49d914e5fbd 100755
--- a/lib/util.php
+++ b/lib/util.php
@@ -516,6 +516,40 @@ class OC_Util {
 		}
 	}
 
+	/**
+	 * we test if webDAV is working properly
+	 *
+	 * The basic assumption is that if the server returns 401/Not Authenticated for an unauthenticated PROPFIND
+	 * the web server it self is setup properly.
+	 *
+	 * Why not an authenticated PROFIND and other verbs?
+	 *  - We don't have the password available
+	 *  - We have no idea about other auth methods implemented (e.g. OAuth with Bearer header)
+	 *
+	 */
+	public static function isWebDAVWorking() {
+        if (!function_exists('curl_init')) {
+            return;
+        }
+
+		$settings = array(
+			'baseUri' => OC_Helper::linkToRemote('webdav'),
+		);
+
+		$client = new \Sabre_DAV_Client($settings);
+
+		$return = true;
+		try {
+			// test PROPFIND
+			$client->propfind('', array('{DAV:}resourcetype'));
+		} catch(\Sabre_DAV_Exception_NotAuthenticated $e) {
+			$return = true;
+		} catch(\Exception $e) {
+			$return = false;
+		}
+
+		return $return;
+	}
 
 	/**
 	 * Check if the setlocal call doesn't work. This can happen if the right local packages are not available on the server.