1 files changed, 18 insertions, 5 deletions
diff --git a/weed/server/webdav_server.go b/weed/server/webdav_server.go
index 35c554839..97d51dad7 100644
--- a/weed/server/webdav_server.go
+++ b/weed/server/webdav_server.go
@@ -38,6 +38,7 @@ type WebDavOption struct {
 	Cipher         bool
 	CacheDir       string
 	CacheSizeMB    int64
+	MaxMB          int
 }
 
 type WebDavServer struct {
@@ -96,6 +97,7 @@ type FileInfo struct {
 	size         int64
 	mode         os.FileMode
 	modifiedTime time.Time
+	etag         string
 	isDirectory  bool
 }
 
@@ -106,6 +108,10 @@ func (fi *FileInfo) ModTime() time.Time { return fi.modifiedTime }
 func (fi *FileInfo) IsDir() bool        { return fi.isDirectory }
 func (fi *FileInfo) Sys() interface{}   { return nil }
 
+func (fi *FileInfo) ETag(ctx context.Context) (string, error) {
+	return fi.etag, nil
+}
+
 type WebDavFile struct {
 	fs               *WebDavFileSystem
 	name             string
@@ -236,7 +242,7 @@ func (fs *WebDavFileSystem) OpenFile(ctx context.Context, fullFilePath string, f
 					Name:        name,
 					IsDirectory: perm&os.ModeDir > 0,
 					Attributes: &filer_pb.FuseAttributes{
-						Mtime:    time.Now().Unix(),
+						Mtime:    0,
 						Crtime:   time.Now().Unix(),
 						FileMode: uint32(perm),
 						Uid:      fs.option.Uid,
@@ -257,7 +263,7 @@ func (fs *WebDavFileSystem) OpenFile(ctx context.Context, fullFilePath string, f
 			fs:          fs,
 			name:        fullFilePath,
 			isDirectory: false,
-			bufWriter:   buffered_writer.NewBufferedWriteCloser(4 * 1024 * 1024),
+			bufWriter:   buffered_writer.NewBufferedWriteCloser(fs.option.MaxMB * 1024 * 1024),
 		}, nil
 	}
 
@@ -273,7 +279,7 @@ func (fs *WebDavFileSystem) OpenFile(ctx context.Context, fullFilePath string, f
 		fs:          fs,
 		name:        fullFilePath,
 		isDirectory: false,
-		bufWriter:   buffered_writer.NewBufferedWriteCloser(4 * 1024 * 1024),
+		bufWriter:   buffered_writer.NewBufferedWriteCloser(fs.option.MaxMB * 1024 * 1024),
 	}, nil
 
 }
@@ -369,6 +375,7 @@ func (fs *WebDavFileSystem) stat(ctx context.Context, fullFilePath string) (os.F
 	fi.name = string(fullpath)
 	fi.mode = os.FileMode(entry.Attributes.FileMode)
 	fi.modifiedTime = time.Unix(entry.Attributes.Mtime, 0)
+	fi.etag = filer.ETag(entry)
 	fi.isDirectory = entry.IsDirectory
 
 	if fi.name == "/" {
@@ -423,12 +430,13 @@ func (f *WebDavFile) Write(buf []byte) (int, error) {
 
 	glog.V(2).Infof("WebDavFileSystem.Write %v", f.name)
 
-	dir, _ := util.FullPath(f.name).DirAndName()
+	fullPath := util.FullPath(f.name)
+	dir, _ := fullPath.DirAndName()
 
 	var getErr error
 	ctx := context.Background()
 	if f.entry == nil {
-		f.entry, getErr = filer_pb.GetEntry(f.fs, util.FullPath(f.name))
+		f.entry, getErr = filer_pb.GetEntry(f.fs, fullPath)
 	}
 
 	if f.entry == nil {
@@ -445,6 +453,11 @@ func (f *WebDavFile) Write(buf []byte) (int, error) {
 			chunk, flushErr = f.saveDataAsChunk(util.NewBytesReader(data), f.name, offset, time.Now().UnixNano())
 
 			if flushErr != nil {
+				if f.entry.Attributes.Mtime == 0 {
+					if err := f.fs.removeAll(ctx, f.name); err != nil {
+						glog.Errorf("bufWriter.Flush remove file error: %+v", f.name)
+					}
+				}
 				return fmt.Errorf("%s upload result: %v", f.name, flushErr)
 			}