From cb58c643fce0d46ec748f15e7ae0c33f24512512 Mon Sep 17 00:00:00 2001
From: Jeffrey Chen <78434827+TCOTC@users.noreply.github.com>
Date: Mon, 8 Dec 2025 09:05:30 +0800
Subject: [PATCH] :art: Do not validate file names when updating existing files
 https://github.com/siyuan-note/siyuan/issues/16536 (#16539)

---
 kernel/api/file.go | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/kernel/api/file.go b/kernel/api/file.go
index a6a49cbee..2ad297ee5 100644
--- a/kernel/api/file.go
+++ b/kernel/api/file.go
@@ -380,10 +380,13 @@ func putFile(c *gin.Context) {
 		return
 	}
 
-	if !util.IsValidUploadFileName(filepath.Base(fileAbsPath)) { // Improve kernel API `/api/file/putFile` parameter validation https://github.com/siyuan-note/siyuan/issues/14658
-		ret.Code = http.StatusBadRequest
-		ret.Msg = "invalid file path, please check https://github.com/siyuan-note/siyuan/issues/14658 for more details"
-		return
+	fileExists := filelock.IsExist(fileAbsPath)
+	if !fileExists {
+		if !util.IsValidUploadFileName(filepath.Base(fileAbsPath)) { // Improve kernel API `/api/file/putFile` parameter validation https://github.com/siyuan-note/siyuan/issues/14658
+			ret.Code = http.StatusBadRequest
+			ret.Msg = "invalid file path, please check https://github.com/siyuan-note/siyuan/issues/14658 for more details"
+			return
+		}
 	}
 
 	isDirStr := c.PostForm("isDir")