From 0a258d859956d2528b816d9be98eaa184250fd67 Mon Sep 17 00:00:00 2001
From: cmliu <cmliu@users.noreply.github.com>
Date: Wed, 31 Dec 2025 18:57:17 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E5=A2=9E=E5=BC=BABase64=E9=AA=8C?=
 =?UTF-8?q?=E8=AF=81=E5=87=BD=E6=95=B0=EF=BC=8C=E6=B7=BB=E5=8A=A0=E7=B1=BB?=
 =?UTF-8?q?=E5=9E=8B=E6=A3=80=E6=9F=A5=E5=92=8C=E8=A7=A3=E7=A0=81=E6=B5=8B?=
 =?UTF-8?q?=E8=AF=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 _worker.js | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/_worker.js b/_worker.js
index 0711a74..fc21893 100644
--- a/_worker.js
+++ b/_worker.js
@@ -1062,9 +1062,17 @@ async function 整理成数组(内容) {
 }
 
 function isValidBase64(str) {
+    if (typeof str !== 'string') return false;
     const cleanStr = str.replace(/\s/g, '');
-    const base64Regex = /^[A-Za-z0-9+/=]+$/;
-    return base64Regex.test(cleanStr);
+    if (cleanStr.length === 0 || cleanStr.length % 4 !== 0) return false;
+    const base64Regex = /^[A-Za-z0-9+/]+={0,2}$/;
+    if (!base64Regex.test(cleanStr)) return false;
+    try {
+        atob(cleanStr);
+        return true;
+    } catch {
+        return false;
+    }
 }
 
 function base64Decode(str) {