From d85b9bc9d6fbe68b522fad8934a257539f00c2a9 Mon Sep 17 00:00:00 2001
From: Nick Craig-Wood <nick@craig-wood.com>
Date: Thu, 10 May 2018 15:03:04 +0100
Subject: [PATCH] webdav: workarounds for biz.mail.ru

  * Add "Depth: 1" on read metadata PROPFIND call
  * Accept 406 to mean directory already exists
---
 backend/webdav/webdav.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/backend/webdav/webdav.go b/backend/webdav/webdav.go
index cc81fd329..a08d8975f 100644
--- a/backend/webdav/webdav.go
+++ b/backend/webdav/webdav.go
@@ -179,6 +179,9 @@ func (f *Fs) readMetaDataForPath(path string) (info *api.Prop, err error) {
 	opts := rest.Opts{
 		Method: "PROPFIND",
 		Path:   f.filePath(path),
+		ExtraHeaders: map[string]string{
+			"Depth": "1",
+		},
 	}
 	var result api.Multistatus
 	var resp *http.Response
@@ -563,7 +566,7 @@ func (f *Fs) mkdir(dirPath string) error {
 	})
 	if apiErr, ok := err.(*api.Error); ok {
 		// already exists
-		if apiErr.StatusCode == http.StatusMethodNotAllowed {
+		if apiErr.StatusCode == http.StatusMethodNotAllowed || apiErr.StatusCode == http.StatusNotAcceptable {
 			return nil
 		}
 		// parent does not exists