fix(core): update

package-lock.json

@@ -4376,6 +4376,11 @@
         "dns-packet": "^5.1.2"
       }
     },
+    "dns2": {
+      "version": "1.4.2",
+      "resolved": "https://verdaccio.lossless.one/dns2/-/dns2-1.4.2.tgz",
+      "integrity": "sha512-cRapXqyLsCW5HMBQg2pTkDnSe3KXjysWnU756epw554HJZRrqo4cD3xghCOFmZIgVzxhotiGsLGEH8QCq5cKnw=="
+    },
     "dom-serializer": {
       "version": "0.2.2",
       "resolved": "https://verdaccio.lossless.one/dom-serializer/-/dom-serializer-0.2.2.tgz",

package.json

@@ -28,7 +28,8 @@
     "@pushrocks/smartdelay": "^2.0.10",
     "@pushrocks/smartpromise": "^3.0.6",
     "@pushrocks/smartrequest": "^1.1.47",
-    "@tsclass/tsclass": "^3.0.21"
+    "@tsclass/tsclass": "^3.0.21",
+    "dns2": "^1.4.2"
   },
   "devDependencies": {
     "@gitzone/tsbuild": "^2.1.24",

ts/dnsly.plugins.ts

@@ -13,3 +13,10 @@ export { smartdelay, smartpromise, smartrequest };
 import * as tsclass from '@tsclass/tsclass';
 
 export { tsclass };
+
+// third party scope
+import dns2 from 'dns2';
+
+export {
+  dns2
+}

ts/index.ts

@@ -24,6 +24,8 @@ export class Smartdns {
   public dnsServerIp: string;
   public dnsServerPort: number;
 
+  public dns2 = new plugins.dns2();
+
   public dnsTypeMap: { [key: string]: number } = {
     A: 1,
     AAAA: 28,
@@ -65,6 +67,8 @@ export class Smartdns {
             return true;
           } else {
             await plugins.smartdelay.delayFor(intervalArg);
+            // lets try backup strategy
+            const backupResult = this.dns2[`resolve${recordTypeArg}`]('google.com')
             return await doCheck();
           }
         } catch (err) {