feat: use better embedded Tor (#2453)

* feat: use better embedded Tor

* update docs [skip ci]

* fix: update torch properly add minimum os version for iOS

* fix: use of invalid thread api on iOS

* fix: disable use of lzma and zstd system libraries

* fix: update torch_dart to work on linux

lib/main.dart

@@ -47,6 +47,7 @@ import 'package:cw_core/unspent_coins_info.dart';
 import 'package:cw_core/utils/print_verbose.dart';
 import 'package:cw_core/utils/proxy_logger/memory_proxy_logger.dart';
 import 'package:cw_core/utils/proxy_wrapper.dart';
+import 'package:cw_core/utils/tor/abstract.dart';
 import 'package:cw_core/wallet_info.dart';
 import 'package:cw_core/wallet_type.dart';
 import 'package:flutter/foundation.dart';
@@ -85,6 +86,11 @@ Future<void> runAppWithZone({Key? topLevelKey}) async {
       return true;
     };
     await FlutterDaemon().unmarkBackgroundSync();
+    try {
+      CakeTor.instance = await CakeTorInstance.getInstance();
+    } catch (e) {
+      printV("Failed to initialize tor: $e");
+    }
     await initializeAppAtRoot();
 
     if (kDebugMode) {

lib/src/screens/wallet_connect/wc_pairing_detail_page.dart

@@ -155,7 +155,7 @@ class WCCDetailsWidget extends BasePage {
                   backgroundImage: (pairing.peerMetadata!.icons.isNotEmpty
                       ? NetworkImage(pairing.peerMetadata!.icons[0])
                       : AssetImage(
-                        CakeTor.instance.enabled
+                        CakeTor.instance!.enabled
                         ? 'assets/images/tor_logo.svg'
                         : 'assets/images/app_logo.png')) as ImageProvider<Object>,
                 ),

lib/src/widgets/provider_optoin_tile.dart

@@ -267,7 +267,7 @@ class Badge extends StatelessWidget {
 
 Widget getImage(String imagePath, {double? height, double? width, Color? imageColor}) {
   bool isNetworkImage = imagePath.startsWith('http') || imagePath.startsWith('https');
-  if (CakeTor.instance.enabled && isNetworkImage) {
+  if (CakeTor.instance!.enabled && isNetworkImage) {
     imagePath = "assets/images/tor_logo.svg";
     isNetworkImage = false;
   }

lib/utils/feature_flag.dart

@@ -8,7 +8,7 @@ class FeatureFlag {
   static const bool isCakePayRedemptionFlowEnabled = false;
   static const bool isExolixEnabled = true;
   static const bool isBackgroundSyncEnabled = true;
-  static final bool isInAppTorEnabled = CakeTor.instance is! CakeTorDisabled;
+  static bool get isInAppTorEnabled => CakeTor.instance is! CakeTorDisabled;
   static const int verificationWordsCount = kDebugMode ? 0 : 2;
   static const bool hasDevOptions = bool.fromEnvironment('hasDevOptions', defaultValue: kDebugMode);
   static const bool hasBitcoinViewOnly = true;

lib/utils/image_utill.dart

@@ -13,7 +13,7 @@ class ImageUtil {
   }) {
     bool isNetworkImage = imagePath.startsWith('http') || imagePath.startsWith('https');
 
-    if (CakeTor.instance.enabled && isNetworkImage) {
+    if (CakeTor.instance!.enabled && isNetworkImage) {
       imagePath = "assets/images/tor_logo.svg";
       isNetworkImage = false;
     }

lib/utils/tor.dart

@@ -15,7 +15,7 @@ Future<void> ensureTorStopped({required BuildContext? context}) async {
   if (context != null) dialogContext = await showFullscreenDialog(context);
   didTorStart = false;
   printV("Stopping tor");
-  await CakeTor.instance.stop();
+  await CakeTor.instance!.stop();
   printV("Tor stopped");
   if (context != null) dismissFullscreenDialog(dialogContext!);
 }
@@ -32,20 +32,20 @@ Future<void> ensureTorStarted({required BuildContext? context}) async {
   // var rootToken = RootIsolateToken.instance!;
   // await Isolate.run(() async {
   //   BackgroundIsolateBinaryMessenger.ensureInitialized(rootToken);
-  //   await CakeTor.instance.start();
+  //   await CakeTor.instance!.start();
   // });
   // second start is fast but populates the values on current thread
-  await CakeTor.instance.start();
+  await CakeTor.instance!.start();
   printV("Tor started");
-  while (!CakeTor.instance.started) {
+  while (!CakeTor.instance!.started) {
     printV("Waiting for tor to start (part 1)");
     await Future.delayed(const Duration(seconds: 1));
   }
-  while (CakeTor.instance.port == -1) {
+  while (CakeTor.instance!.port == -1) {
     printV("Waiting for tor to start (listening on port)");
     await Future.delayed(const Duration(seconds: 1));
   }
-  printV("Tor started on port ${CakeTor.instance.port}");
+  printV("Tor started on port ${CakeTor.instance!.port}");
   if (context != null) dismissFullscreenDialog(dialogContext!);
 }
 

lib/view_model/dashboard/dashboard_view_model.dart

@@ -399,7 +399,7 @@ abstract class DashboardViewModelBase with Store {
   String get address => wallet.walletAddresses.address;
 
   @computed
-  bool get isTorEnabled => CakeTor.instance.enabled;
+  bool get isTorEnabled => CakeTor.instance!.enabled;
 
   @computed
   SyncStatus get status => wallet.syncStatus;

lib/view_model/node_list/node_create_or_edit_view_model.dart

@@ -64,7 +64,7 @@ abstract class NodeCreateOrEditViewModelBase with Store {
   bool useSocksProxy;
 
   @computed
-  bool get usesEmbeddedProxy => CakeTor.instance.started;
+  bool get usesEmbeddedProxy => CakeTor.instance!.started;
 
   @observable
   String socksProxyAddress;

lib/view_model/node_list/node_list_view_model.dart

@@ -39,7 +39,7 @@ abstract class NodeListViewModelBase with Store {
 
   String getAlertContent(String uri) =>
       S.current.change_current_node(uri) +
-      '${uri.endsWith('.onion') || uri.contains('.onion:') ? '\n' + (CakeTor.instance.enabled ? '' : S.current.orbot_running_alert) : ''}';
+      '${uri.endsWith('.onion') || uri.contains('.onion:') ? '\n' + (CakeTor.instance!.enabled ? '' : S.current.orbot_running_alert) : ''}';
 
   @computed
   bool get enableAutomaticNodeSwitching => settingsStore.enableAutomaticNodeSwitching;

lib/view_model/node_list/pow_node_list_view_model.dart

@@ -39,7 +39,7 @@ abstract class PowNodeListViewModelBase with Store {
 
   String getAlertContent(String uri) =>
       S.current.change_current_node(uri) +
-      '${uri.endsWith('.onion') || uri.contains('.onion:') ? '\n' + (CakeTor.instance.enabled ? '' : S.current.orbot_running_alert) : ''}';
+      '${uri.endsWith('.onion') || uri.contains('.onion:') ? '\n' + (CakeTor.instance!.enabled ? '' : S.current.orbot_running_alert) : ''}';
 
   @computed
   bool get enableAutomaticNodeSwitching => settingsStore.enableAutomaticNodeSwitching;

lib/view_model/start_tor_view_model.dart

@@ -59,7 +59,7 @@ abstract class StartTorViewModelBase with Store {
     await ensureTorStarted(context: null);
     while (true) {
       await Future.delayed(Duration(milliseconds: 250));
-      if (CakeTor.instance.port != -1 && CakeTor.instance.started) {
+      if (CakeTor.instance!.port != -1 && CakeTor.instance!.started) {
         break;
       }
     }