feat: Surge 支持 Snell v6(v6 不支持 obfs, 将自动过滤)

Author: xream

backend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "sub-store",
-  "version": "2.24.17",
+  "version": "2.24.18",
   "description": "Advanced Subscription Manager for QX, Loon, Surge, Stash and Shadowrocket.",
   "main": "src/main.js",
   "packageManager": "pnpm@11.0.9",

backend/src/core/proxy-utils/producers/surge.js

@@ -96,6 +96,18 @@ function warnMaxStreamsIfNeeded(proxy) {
     );
 }
 
+function hasSnellObfs(proxy) {
+    return (
+        isPresent(proxy, 'obfs-opts.mode') ||
+        isPresent(proxy, 'obfs-opts.host') ||
+        isPresent(proxy, 'obfs-opts.path')
+    );
+}
+
+function isUnsupportedSnellV6Obfs(proxy) {
+    return Number(proxy.version) === 6 && hasSnellObfs(proxy);
+}
+
 export default function Surge_Producer() {
     const produce = (proxy, type, opts = {}) => {
         if (
@@ -923,6 +935,13 @@ function formatHeaderMap(headers, separator) {
 }
 
 function snell(proxy) {
+    if (isUnsupportedSnellV6Obfs(proxy)) {
+        $.error(
+            `Platform ${targetPlatform} does not support Snell version ${proxy.version} with obfs`,
+        );
+        return '';
+    }
+
     const result = new Result(proxy);
     result.append(`${proxy.name}=${proxy.type},${proxy.server},${proxy.port}`);
     result.appendIfPresent(`,version=${proxy.version}`, 'version');

backend/src/test/proxy-producers/text.spec.js

@@ -807,6 +807,47 @@ describe('Proxy text producers', function () {
         );
     });
 
+    it('produces Surge Snell v6 and filters v6 obfs', function () {
+        const { result: output, errors } = captureErrors(() =>
+            ProxyUtils.produce(
+                [
+                    {
+                        type: 'snell',
+                        name: 'Surge Snell v6',
+                        server: 'snell.example.com',
+                        port: 443,
+                        psk: 'secret',
+                        version: 6,
+                        udp: true,
+                    },
+                    {
+                        type: 'snell',
+                        name: 'Surge Snell v6 Obfs',
+                        server: 'snell.example.com',
+                        port: 443,
+                        psk: 'secret',
+                        version: 6,
+                        udp: true,
+                        'obfs-opts': {
+                            mode: 'tls',
+                            host: 'obfs.example.com',
+                            path: '/snell',
+                        },
+                    },
+                ],
+                'Surge',
+                'external',
+            ),
+        );
+
+        expect(output).to.equal(
+            'Surge Snell v6=snell,snell.example.com,443,version=6,psk="secret",udp-relay=true',
+        );
+        expect(errors).to.deep.equal([
+            'Platform Surge does not support Snell v6 obfs proxy Surge Snell v6 Obfs. Proxy has been filtered.',
+        ]);
+    });
+
     it('omits Surge TLS-only params for plain HTTP, SOCKS5, and VMess nodes', function () {
         const cases = [
             {