fix(ww): lightly obscure smart dialer config to mitigate app inspection (#441)

* fix(ww): lightly obscure smart dialer config to mitigate app inspection

* feedback

Author: daniellacosse

x/examples/website-wrapper-app/wrapper_app_project/.scripts/build.mjs

@@ -28,12 +28,12 @@ const WRAPPER_APP_TEMPLATE_DIR = path.join(
   "wrapper_app_project/template",
 );
 
-const DEFAULT_SMART_DIALER_CONFIG = {
+const DEFAULT_SMART_DIALER_CONFIG = JSON.stringify({
   dns: [{
     https: { name: "9.9.9.9" },
   }],
   tls: ["", "split:1", "split:2", "tlsfrag:1"],
-};
+});
 
 export default async function main(
   {
@@ -172,7 +172,7 @@ function resolveTemplateArguments(
     appName,
     navigationUrl,
     additionalDomains,
-    smartDialerConfig,
+    smartDialerConfig = DEFAULT_SMART_DIALER_CONFIG,
   },
 ) {
   const result = {
@@ -222,14 +222,7 @@ function resolveTemplateArguments(
     result.domainList = [result.entryDomain];
   }
 
-  if (typeof smartDialerConfig === "string") {
-    result.smartDialerConfig = smartDialerConfig.replaceAll('"', '\\"');
-  } else if (typeof smartDialerConfig === "object") {
-    result.smartDialerConfig = JSON.stringify(smartDialerConfig).replaceAll(
-      '"',
-      '\\"',
-    );
-  }
+  result.smartDialerConfig = Buffer.from(smartDialerConfig).toString("base64");
 
   return result;
 }
@@ -248,9 +241,6 @@ if (import.meta.url.endsWith(process.argv[1])) {
   main({
     ...args,
     additionalDomains: args.additionalDomains?.split(/,\s*/) ?? [],
-    smartDialerConfig: args.smartDialerConfig
-      ? JSON.parse(args.smartDialerConfig)
-      : undefined,
   })
     .catch(console.error);
 }

x/examples/website-wrapper-app/wrapper_app_project/template/android/app/src/main/java/org/getoutline/pwa/MainActivity.kt.handlebars

@@ -5,6 +5,9 @@ import com.getcapacitor.BridgeActivity
 
 import mobileproxy.*
 
+import android.util.Base64
+import java.nio.charset.StandardCharsets
+
 import androidx.webkit.ProxyConfig
 import androidx.webkit.ProxyController
 import androidx.webkit.WebViewFeature
@@ -33,11 +36,13 @@ class MainActivity : BridgeActivity() {
 
     private fun tryProxy(): Boolean {
         try {
+            val smartDialerConfig = Base64.decode(Config.smartDialer, Base64.DEFAULT)
+
             this.proxy = Mobileproxy.runProxy(
                 "127.0.0.1:0",
                 Mobileproxy.newSmartStreamDialer(
                     Mobileproxy.newListFromLines(Config.domainList),
-                    Config.smartDialer,
+                    String(smartDialerConfig, StandardCharsets.UTF_8),
                     Mobileproxy.newStderrLogWriter()
                 )
             )

x/examples/website-wrapper-app/wrapper_app_project/template/ios/App/App/AppDelegate.swift

@@ -1,3 +1,4 @@
+import Foundation
 import Capacitor
 import Mobileproxy
 import UIKit
@@ -54,10 +55,14 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
 
     @discardableResult
     private func tryProxy() -> Bool {
+        guard let smartDialerConfig = Data(base64Encoded: Config.smartDialer) else {
+            return false
+        }
+
         var error: NSError?
         if let dialer = MobileproxyNewSmartStreamDialer(
             MobileproxyNewListFromLines(Config.domainList),
-            Config.smartDialer,
+            String(data: smartDialerConfig, encoding: .utf8),
             MobileproxyNewStderrLogWriter(),
             &error
         ) {