CW-519 Enable built-in Tor (#1950)

* tor wip

* Enable tor on iOS

* Prevent app lag when node is exceptionally slow (usually over tor)

* fix: logic in daemonBlockchainHeight refresh
fix: storing tor state

* Pin ledger_flutter_plus dependency to fix builds

* bump arti version

* wip

* add single httpclient

* route everything I was able to catch trough the built-in tor node

* Enable proxy for http.Client [run tests]

* add tor proxy support to cw_evm, cw_tron and cw_polygon [run tests]

* remove log pollution, cleanup [skip slack]

* fix tests not working in latest main [skip slack] [run tests]

* remove cw_wownero import

* fix build issues

* migrate all remaining calls to use ProxyWrapper
add a CI action to enforce using ProxyWrapper instead of http/http.dart to prevent leaks

* fix tor background sync (will work on test builds after #2142 is merged and this PR is rebased on top)

* wip [skip ci]

* relicense to GPLv3 add socks5 license, build fixes

* use ProxyWrapper instead of http in robinhood

* Revert "relicense to GPLv3"

* feat(cw_bitcoin): support socks proxy and CakeTor

* fix(tor): migrate OCP and EVM over to ProxyWrapper()

* chore: cleanup
fix: show tor loading screen when app is starting

* fix: tor switch properly dismisses fullscreen loading dialog
fix: connectToNode after tor startup on app start

* fix(tor): status check for xmr/wow/zano

* fix(tor): onramper request fix

* fix(api): ServicesResponse is now being cached and doesn't fetch data everytime DashboardViewModel is being rebuilt
fix(tor): do not fallback to clearnet when tor failed.
fix(tor): do not leak connections during app startup
chore: refactor bootstrap() function to be separated into bootstrapOffline and bootstrapOnline
fix(cw_bitcoin): migrate payjoin to use ProxyWrapper

* [skip ci] remove print

* address comments from review

* fix: derusting tor implementation

Instead of rust-based Arti I've moved back to the
OG C++ tor implementation.
This fixed all issues we had with Tor.
- onion services now work
- all requests are going through without random errors
- we don't have to navigate a maze of multiple forks of multiple packages
- fully working `torrc` config file (probably will be needed for Tari).
- logging for Tor client
- and so on.

feat: network logging tab
feat: use built-in proxy on Tails - this should resolve all issues for Tails users (needs testing though)

* fix conflicts with main
bump https to fix build issue
relax store() call

* fix(cw_wownero): tor connection
fix(tor): connection issues

* fix(cw_evm): add missing chainId
fix(cw_core): solana rpc fix

* feat: mark tor as experimental
fix: drop anonpay onion authority
fix: drop fiatapi onion authority
fix: drop trocador onion authority
fix: disable networkimage when tor is enabled
fix: handle cakepay errors gracefully

* fix re-formatting [skip ci]

* changes from review

* Delete android/.kotlin/sessions/kotlin-compiler-2468481326039681181.salive

* fix missing imports

* Update pubspec_base.yaml

---------

Co-authored-by: OmarHatem <omarh.ismail1@gmail.com>

lib/core/background_sync.dart

@@ -7,6 +7,7 @@ import 'package:cake_wallet/di.dart';
 import 'package:cake_wallet/entities/preferences_key.dart';
 import 'package:cake_wallet/store/settings_store.dart';
 import 'package:cake_wallet/utils/feature_flag.dart';
+import 'package:cake_wallet/utils/tor.dart';
 import 'package:cake_wallet/view_model/wallet_list/wallet_list_item.dart';
 import 'package:cake_wallet/view_model/wallet_list/wallet_list_view_model.dart';
 import 'package:cw_core/sync_status.dart';
@@ -15,6 +16,7 @@ import 'package:cw_core/utils/print_verbose.dart';
 import 'package:cw_core/wallet_type.dart';
 import 'package:flutter_local_notifications/flutter_local_notifications.dart';
 import 'package:shared_preferences/shared_preferences.dart';
+import 'package:flutter/foundation.dart';
 
 class BackgroundSync {
   final FlutterLocalNotificationsPlugin _notificationsPlugin = FlutterLocalNotificationsPlugin();
@@ -90,6 +92,11 @@ class BackgroundSync {
   }
 
   Future<void> sync() async {
+    final settingsStore = getIt.get<SettingsStore>();
+    if (settingsStore.currentBuiltinTor) {
+      printV("Starting Tor");
+      await ensureTorStarted(context: null);
+    }
     printV("Background sync started");
     await _syncWallets();
     printV("Background sync completed");
@@ -100,7 +107,6 @@ class BackgroundSync {
     final walletListViewModel = getIt.get<WalletListViewModel>();
     final settingsStore = getIt.get<SettingsStore>();
 
-
     final List<WalletListItem> moneroWallets = walletListViewModel.wallets
         .where((element) => !element.isHardware)
         .where((element) => ![WalletType.haven, WalletType.decred].contains(element.type))

lib/core/fiat_conversion_service.dart

@@ -1,18 +1,15 @@
+import 'package:cw_core/utils/proxy_wrapper.dart';
 import 'package:cw_core/crypto_currency.dart';
 import 'package:cake_wallet/entities/fiat_currency.dart';
 import 'dart:convert';
-import 'package:flutter/foundation.dart';
-import 'package:http/http.dart';
 import 'package:cake_wallet/.secrets.g.dart' as secrets;
 
 const _fiatApiClearNetAuthority = 'fiat-api.cakewallet.com';
-const _fiatApiOnionAuthority = 'n4z7bdcmwk2oyddxvzaap3x2peqcplh3pzdy7tpkk5ejz5n4mhfvoxqd.onion';
+// const _fiatApiOnionAuthority = 'n4z7bdcmwk2oyddxvzaap3x2peqcplh3pzdy7tpkk5ejz5n4mhfvoxqd.onion';
+const _fiatApiOnionAuthority = _fiatApiClearNetAuthority;
 const _fiatApiPath = '/v2/rates';
 
-Future<double> _fetchPrice(Map<String, dynamic> args) async {
-  final crypto = args['crypto'] as String;
-  final fiat = args['fiat'] as String;
-  final torOnly = args['torOnly'] as bool;
+Future<double> _fetchPrice(String crypto, String fiat, bool torOnly) async {
 
   final Map<String, String> queryParams = {
     'interval_count': '1',
@@ -24,14 +21,14 @@ Future<double> _fetchPrice(Map<String, dynamic> args) async {
   num price = 0.0;
 
   try {
-    late final Uri uri;
-    if (torOnly) {
-      uri = Uri.http(_fiatApiOnionAuthority, _fiatApiPath, queryParams);
-    } else {
-      uri = Uri.https(_fiatApiClearNetAuthority, _fiatApiPath, queryParams);
-    }
+    final onionUri = Uri.http(_fiatApiOnionAuthority, _fiatApiPath, queryParams);
+    final clearnetUri = Uri.https(_fiatApiClearNetAuthority, _fiatApiPath, queryParams);
 
-    final response = await get(uri);
+    final response = await ProxyWrapper().get(
+      onionUri: onionUri,
+      clearnetUri: torOnly ? onionUri : clearnetUri,
+    );
+    
 
     if (response.statusCode != 200) {
       return 0.0;
@@ -50,18 +47,11 @@ Future<double> _fetchPrice(Map<String, dynamic> args) async {
   }
 }
 
-Future<double> _fetchPriceAsync(CryptoCurrency crypto, FiatCurrency fiat, bool torOnly) async =>
-    compute(_fetchPrice, {
-      'fiat': fiat.toString(),
-      'crypto': crypto.toString(),
-      'torOnly': torOnly,
-    });
-
 class FiatConversionService {
   static Future<double> fetchPrice({
     required CryptoCurrency crypto,
     required FiatCurrency fiat,
     required bool torOnly,
   }) async =>
-      await _fetchPriceAsync(crypto, fiat, torOnly);
+      await _fetchPrice(crypto.toString(), fiat.toString(), torOnly);
 }

lib/core/open_crypto_pay/open_cryptopay_service.dart

@@ -5,15 +5,13 @@ import 'package:cake_wallet/core/open_crypto_pay/exceptions.dart';
 import 'package:cake_wallet/core/open_crypto_pay/lnurl.dart';
 import 'package:cake_wallet/core/open_crypto_pay/models.dart';
 import 'package:cw_core/crypto_currency.dart';
-import 'package:http/http.dart';
+import 'package:cw_core/utils/proxy_wrapper.dart';
 
 class OpenCryptoPayService {
   static bool isOpenCryptoPayQR(String value) =>
       value.toLowerCase().contains("lightning=lnurl") ||
       value.toLowerCase().startsWith("lnurl");
 
-  final Client _httpClient = Client();
-
   Future<String> commitOpenCryptoPayRequest(
     String txHex, {
     required String txId,
@@ -31,7 +29,8 @@ class OpenCryptoPayService {
     queryParams['tx'] = txId;
 
     final response =
-        await _httpClient.get(Uri.https(uri.authority, uri.path, queryParams));
+        await ProxyWrapper().get(clearnetUri: Uri.https(uri.authority, uri.path, queryParams));
+    
 
     if (response.statusCode == 200) {
       final body = jsonDecode(response.body) as Map;
@@ -40,13 +39,13 @@ class OpenCryptoPayService {
       throw OpenCryptoPayException(body.toString());
     }
     throw OpenCryptoPayException(
-        "Unexpected status code ${response.statusCode} ${response.body}");
+        "Unexpected status code ${response.statusCode} ${response}");
   }
 
   Future<void> cancelOpenCryptoPayRequest(OpenCryptoPayRequest request) async {
     final uri = Uri.parse(request.callbackUrl.replaceAll("/cb/", "/cancel/"));
 
-    await _httpClient.delete(uri);
+    await ProxyWrapper().delete(clearnetUri: uri);
   }
 
   Future<OpenCryptoPayRequest> getOpenCryptoPayInvoice(String lnUrl) async {
@@ -73,7 +72,8 @@ class OpenCryptoPayService {
 
   Future<(_OpenCryptoPayQuote, Map<String, List<OpenCryptoPayQuoteAsset>>)>
       _getOpenCryptoPayParams(Uri uri) async {
-    final response = await _httpClient.get(uri);
+    final response = await ProxyWrapper().get(clearnetUri: uri);
+    
 
     if (response.statusCode == 200) {
       final responseBody = jsonDecode(response.body) as Map;
@@ -119,8 +119,8 @@ class OpenCryptoPayService {
     queryParams['asset'] = asset.title;
     queryParams['method'] = _getMethod(asset);
 
-    final response =
-        await _httpClient.get(Uri.https(uri.authority, uri.path, queryParams));
+    final response = await ProxyWrapper().get(clearnetUri: Uri.https(uri.authority, uri.path, queryParams));
+    
 
     if (response.statusCode == 200) {
       final responseBody = jsonDecode(response.body) as Map;

lib/core/yat_service.dart

@@ -1,7 +1,7 @@
 import 'dart:convert';
 
 import 'package:cake_wallet/entities/yat_record.dart';
-import 'package:http/http.dart';
+import 'package:cw_core/utils/proxy_wrapper.dart';
 
 class YatService {
   static bool isDevMode = false;
@@ -33,7 +33,8 @@ class YatService {
     final yatRecords = <YatRecord>[];
 
     try {
-      final response = await get(uri);
+      final response = await ProxyWrapper().get(clearnetUri: uri);
+      
       final resBody = json.decode(response.body) as Map<String, dynamic>;
       final results = resBody["result"] as Map<dynamic, dynamic>;
       // Favour a subaddress over a standard address.
@@ -42,7 +43,7 @@ class YatService {
         results[MONERO_STD_ADDRESS] ??
         results[tag]) as Map<String, dynamic>;
 
-      if (yatRecord != null) {
+      if (yatRecord.isNotEmpty) {
         yatRecords.add(YatRecord.fromJson(yatRecord));
       }