From 15aff6fa2bf27f78775677e2e5f7815a9fad415f Mon Sep 17 00:00:00 2001
From: xream <xream@icloud.com>
Date: Fri, 19 Jul 2024 14:56:37 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20=E5=A4=84=E7=90=86=E7=AB=AF=E5=8F=A3?=
 =?UTF-8?q?=E8=B7=B3=E8=B7=83(=E6=84=9F=E8=B0=A2=E4=BA=9A=E6=89=98?=
 =?UTF-8?q?=E8=8E=89=E4=BD=AC)?=
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---
 backend/package.json                  |  2 +-
 backend/src/core/proxy-utils/index.js | 29 +++++++++++++++++++++++++++
 2 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/backend/package.json b/backend/package.json
index f6836f533..457b4b30d 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "sub-store",
-  "version": "2.14.353",
+  "version": "2.14.354",
   "description": "Advanced Subscription Manager for QX, Loon, Surge, Stash and ShadowRocket.",
   "main": "src/main.js",
   "scripts": {
diff --git a/backend/src/core/proxy-utils/index.js b/backend/src/core/proxy-utils/index.js
index b8ee40a87..b12809e3c 100644
--- a/backend/src/core/proxy-utils/index.js
+++ b/backend/src/core/proxy-utils/index.js
@@ -20,6 +20,23 @@ import { produceArtifact } from '@/restful/sync';
 import { getFlag, removeFlag, getISO, MMDB } from '@/utils/geo';
 import Gist from '@/utils/gist';
 
+function getRandomInt(min, max) {
+    min = Math.ceil(min);
+    max = Math.floor(max);
+    return Math.floor(Math.random() * (max - min + 1)) + min;
+}
+
+function getRandomPort(portString) {
+    let portParts = portString.split(',');
+    let randomPart = portParts[Math.floor(Math.random() * portParts.length)];
+    if (randomPart.includes('-')) {
+        let [min, max] = randomPart.split('-').map(Number);
+        return getRandomInt(min, max);
+    } else {
+        return Number(randomPart);
+    }
+}
+
 function preprocess(raw) {
     for (const processor of PROXY_PREPROCESSORS) {
         try {
@@ -220,6 +237,18 @@ function produce(proxies, targetPlatform, type, opts = {}) {
                 delete proxy['tls-fingerprint'];
             }
         }
+
+        // 处理 端口跳跃
+        if (proxy.ports) {
+            if (!['ClashMeta', 'JSON'].includes(targetPlatform)) {
+                proxy.ports = proxy.ports.replace(/\//g, ',');
+            }
+            if (!['ClashMeta', 'Stash', 'JSON'].includes(targetPlatform)) {
+                proxy.port = getRandomPort(proxy.ports);
+                delete proxy.ports;
+            }
+        }
+
         return proxy;
     });