feat: 订阅流量数据兼容无 upload 字段的情况

Author: xream

backend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "sub-store",
-  "version": "2.20.33",
+  "version": "2.20.34",
   "description": "Advanced Subscription Manager for QX, Loon, Surge, Stash and Shadowrocket.",
   "main": "src/main.js",
   "scripts": {

backend/src/utils/flow.js

@@ -186,7 +186,8 @@ export function parseFlowHeaders(flowHeaders) {
     const uploadMatch = flowHeaders.match(
         /upload=([-+]?)([0-9]*\.?[0-9]+([eE][-+]?[0-9]+)?)/,
     );
-    const upload = Number(uploadMatch[1] + uploadMatch[2]);
+    const upload =
+        uploadMatch == null ? 0 : Number(uploadMatch[1] + uploadMatch[2]);
 
     const downloadMatch = flowHeaders.match(
         /download=([-+]?)([0-9]*\.?[0-9]+([eE][-+]?[0-9]+)?)/,