feat: 支持 Loon Hysteria2(ecn, 流量控制参数未知)

backend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "sub-store",
-  "version": "2.14.79",
+  "version": "2.14.80",
   "description": "Advanced Subscription Manager for QX, Loon, Surge, Stash and ShadowRocket.",
   "main": "src/main.js",
   "scripts": {

backend/src/core/proxy-utils/parsers/index.js

@@ -642,6 +642,15 @@ function Loon_Trojan() {
     const parse = (line) => getLoonParser().parse(line);
     return { name, test, parse };
 }
+function Loon_Hysteria2() {
+    const name = 'Loon Hysteria2 Parser';
+    const test = (line) => {
+        return /^.*=\s*Hysteria2/i.test(line.split(',')[0]);
+    };
+
+    const parse = (line) => getLoonParser().parse(line);
+    return { name, test, parse };
+}
 
 function Loon_Http() {
     const name = 'Loon HTTP Parser';
@@ -864,6 +873,7 @@ export default [
     Loon_SSR(),
     Loon_VMess(),
     Loon_Vless(),
+    Loon_Hysteria2(),
     Loon_Trojan(),
     Loon_Http(),
     Loon_WireGuard(),

backend/src/core/proxy-utils/parsers/peggy/loon.js

@@ -35,7 +35,7 @@ const grammars = String.raw`
     }
 }
 
-start = (shadowsocksr/shadowsocks/vmess/vless/trojan/https/http) {
+start = (shadowsocksr/shadowsocks/vmess/vless/trojan/https/http/hysteria2) {
     return proxy;
 }
 
@@ -68,6 +68,9 @@ trojan = tag equals "trojan"i address password (transport/transport_host/transpo
     proxy.type = "trojan";
     handleTransport();
 }
+hysteria2 = tag equals "hysteria2"i address password (tls_host/tls_verification/udp_relay/download_bandwidth/ecn/others)* {
+    proxy.type = "hysteria2";
+}
 https = tag equals "https"i address (username password)? (tls_host/tls_verification/fast_open/udp_relay/others)* {
     proxy.type = "http";
     proxy.tls = true;
@@ -167,6 +170,9 @@ tls_verification = comma "skip-cert-verify" equals flag:bool { proxy["skip-cert-
 fast_open = comma "fast-open" equals flag:bool { proxy.tfo = flag; }
 udp_relay = comma "udp" equals flag:bool { proxy.udp = flag; }
 
+ecn = comma "ecn" equals flag:bool { proxy.ecn = flag; }
+download_bandwidth = comma "download-bandwidth" equals match:[^,]+ { proxy.down = match.join(""); }
+
 tag = match:[^=,]* { proxy.name = match.join("").trim(); }
 comma = _ "," _
 equals = _ "=" _

backend/src/core/proxy-utils/parsers/peggy/loon.peg

@@ -33,7 +33,7 @@
     }
 }
 
-start = (shadowsocksr/shadowsocks/vmess/vless/trojan/https/http) {
+start = (shadowsocksr/shadowsocks/vmess/vless/trojan/https/http/hysteria2) {
     return proxy;
 }
 
@@ -66,6 +66,9 @@ trojan = tag equals "trojan"i address password (transport/transport_host/transpo
     proxy.type = "trojan";
     handleTransport();
 }
+hysteria2 = tag equals "hysteria2"i address password (tls_host/tls_verification/udp_relay/download_bandwidth/ecn/others)* {
+    proxy.type = "hysteria2";
+}
 https = tag equals "https"i address (username password)? (tls_host/tls_verification/fast_open/udp_relay/others)* {
     proxy.type = "http";
     proxy.tls = true;
@@ -165,6 +168,9 @@ tls_verification = comma "skip-cert-verify" equals flag:bool { proxy["skip-cert-
 fast_open = comma "fast-open" equals flag:bool { proxy.tfo = flag; }
 udp_relay = comma "udp" equals flag:bool { proxy.udp = flag; }
 
+ecn = comma "ecn" equals flag:bool { proxy.ecn = flag; }
+download_bandwidth = comma "download-bandwidth" equals match:[^,]+ { proxy.down = match.join(""); }
+
 tag = match:[^=,]* { proxy.name = match.join("").trim(); }
 comma = _ "," _
 equals = _ "=" _

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

@@ -20,6 +20,8 @@ export default function Loon_Producer() {
                 return http(proxy);
             case 'wireguard':
                 return wireguard(proxy);
+            case 'hysteria2':
+                return hysteria2(proxy);
         }
         throw new Error(
             `Platform ${targetPlatform} does not support proxy type: ${proxy.type}`,
@@ -334,3 +336,33 @@ function wireguard(proxy) {
 
     return result.toString();
 }
+
+function hysteria2(proxy) {
+    if (proxy.obfs || proxy['obfs-password']) {
+        throw new Error(`obfs is unsupported`);
+    }
+    const result = new Result(proxy);
+    result.append(`${proxy.name}=Hysteria2,${proxy.server},${proxy.port}`);
+
+    result.appendIfPresent(`,"${proxy.password}"`, 'password');
+
+    // sni
+    result.appendIfPresent(`,tls-name=${proxy.sni}`, 'sni');
+    result.appendIfPresent(
+        `,skip-cert-verify=${proxy['skip-cert-verify']}`,
+        'skip-cert-verify',
+    );
+
+    // udp
+    result.appendIfPresent(`,udp=${proxy.udp}`, 'udp');
+
+    // download-bandwidth
+    result.appendIfPresent(
+        `,download-bandwidth=${`${proxy['down']}`.match(/\d+/)?.[0] || 0}`,
+        'down',
+    );
+
+    result.appendIfPresent(`,ecn=${proxy.ecn}`, 'ecn');
+
+    return result.toString();
+}