From 41665b0865eb90f34687a6139a9b39b9a6eda99b Mon Sep 17 00:00:00 2001
From: Stephen Hu <812791840@qq.com>
Date: Tue, 25 Nov 2025 10:03:37 +0800
Subject: [PATCH] Refactor: Email parser use with to handle buffer (#11496)

### What problem does this PR solve?
 Email parser use with to handle buffer

### Type of change

- [x] Refactoring
---
 rag/app/email.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/rag/app/email.py b/rag/app/email.py
index 2e95eceec..6f3e30ab4 100644
--- a/rag/app/email.py
+++ b/rag/app/email.py
@@ -51,9 +51,11 @@ def chunk(
     attachment_res = []
 
     if binary:
-        msg = BytesParser(policy=policy.default).parse(io.BytesIO(binary))
+        with io.BytesIO(binary) as buffer:
+            msg = BytesParser(policy=policy.default).parse(buffer)
     else:
-        msg = BytesParser(policy=policy.default).parse(open(filename, "rb"))
+        with open(filename, "rb") as buffer:
+            msg = BytesParser(policy=policy.default).parse(buffer)
 
     text_txt, html_txt = [], []
     # get the email header info