fix uploading file with wrong content. close #30

cmd/gowebdav/main.go

@@ -211,8 +211,12 @@ func writeFile(path string, bytes []byte, mode os.FileMode) error {
 }
 
 func getStream(pathOrString string) (io.ReadCloser, error) {
+
 	fi, err := os.Stat(pathOrString)
-	if err == nil {
+	if err != nil {
+		return nil, err
+	}
+
 	if fi.IsDir() {
 		return nil, &os.PathError{
 			Op:   "Open",
@@ -220,23 +224,15 @@ func getStream(pathOrString string) (io.ReadCloser, error) {
 			Err:  errors.New("Path: '" + pathOrString + "' is a directory"),
 		}
 	}
+
 	f, err := os.Open(pathOrString)
 	if err == nil {
 		return f, nil
 	}
+
 	return nil, &os.PathError{
 		Op:   "Open",
 		Path: pathOrString,
 		Err:  err,
 	}
 }
-	return nopCloser{strings.NewReader(pathOrString)}, nil
-}
-
-type nopCloser struct {
-	io.Reader
-}
-
-func (nopCloser) Close() error {
-	return nil
-}