fix: enhance webdav client impl

storage/webdav/client.go

@@ -48,18 +48,55 @@ func (c *Client) doRequest(ctx context.Context, method, url string, body io.Read
 	return c.httpClient.Do(req)
 }
 
-func (c *Client) MkDir(ctx context.Context, dirPath string) error {
-	url := c.BaseURL + dirPath
-	resp, err := c.doRequest(ctx, "MKCOL", url, nil)
+func (c *Client) Exists(ctx context.Context, remotePath string) (bool, error) {
+	url := c.BaseURL + remotePath
+	resp, err := c.doRequest(ctx, "PROPFIND", url, nil)
 	if err != nil {
-		return err
+		return false, err
 	}
 	defer resp.Body.Close()
 
 	if resp.StatusCode >= 200 && resp.StatusCode < 300 {
+		return true, nil
+	}
+	if resp.StatusCode == http.StatusNotFound {
+		return false, nil
+	}
+	return false, fmt.Errorf("PROPFIND: %s", resp.Status)
+}
+
+func (c *Client) MkDir(ctx context.Context, dirPath string) error {
+	dirPath = strings.Trim(dirPath, "/")
+	if dirPath == "" {
 		return nil
 	}
-	return fmt.Errorf("MKCOL: %s", resp.Status)
+	parts := strings.Split(dirPath, "/")
+	currentPath := ""
+	for i, part := range parts {
+		if i > 0 {
+			currentPath += "/"
+		}
+		currentPath += part
+
+		exists, err := c.Exists(ctx, currentPath)
+		if err != nil {
+			return err
+		}
+		if exists {
+			continue
+		}
+		url := c.BaseURL + currentPath
+		resp, err := c.doRequest(ctx, "MKCOL", url, nil)
+		if err != nil {
+			return err
+		}
+		resp.Body.Close()
+
+		if resp.StatusCode < 200 || resp.StatusCode >= 300 {
+			return fmt.Errorf("MKCOL %s: %s", currentPath, resp.Status)
+		}
+	}
+	return nil
 }
 
 func (c *Client) WriteFile(ctx context.Context, remotePath string, content io.Reader) error {