Ywallet zcash (#2810)

* feat(zcash): initial commit
- initial work on cw_zcash
  - use single .db for everything zcash to speed up sync and scanning
  - implement silent autoshielding of non-orchard funds
  - use FFI for everything to fetch the data
  - add support for passphrase by adding extra word to seed phrase
  - enforce lints on CI for cw_zcash directory
- use correct zcash name, and call transparent zcash tZEC
- minor cleanups outsite of cw_zcash
  - gitmodules, gitignore
  - db debug
  - fix broken addressPageType in WalletInfo
  - enable debug options in kDebugMode and kProfileMode

* feat: T address rotation (and cache) wip: minor fixes

* wip: shield tx list

* fix fiat amounts fix derrivation of rotation account addresses screen
for zcash block height fix T address shields improvements Amount in
disposable T shields UI improvements
show pending outgoing tx in tx history

* fix null check on passphrase page fix tx showing as pending rename auto
shield txs fixed send all to include fee use rotating address in
addressForExchange wrap all calls of WarpApi.getLatestHeight in try
catch to prevent leaking errors

other minor fixes from notion

* wallet group debug cache sent tx address wallet T address rotation fixes
automatically pick the fee for auto-shield

* fix T address cache deserialization fix autoshield icon fix autoshield
text getCachedDestinationAddress fix send address cache

* address comments from review

* wip: iOS fix

* fix swap

* Allow cakepay payment from zcash wallet

* fix: ios (I'm stupid) fix: reorder addresses to make orchard default
fix: send all balance

* 5.6.6 bump fix: ios apple review add transport error to ignored
exceptions

* fix: leaving dust behind when sweeping all

* Change wallets order

* fix: reflect balance of pending out txs fix: restore height support

* linux support (disabled)

* fix: date picker for zcash on restore screen fix: build script for linux
match WarpApi.warpSync args with upstream

* fix: linter script

* ensure all exchange providers support ZEC (#2802)

* ensure all exchange providers support ZEC

* remove zaddr and tzec currencies and refactor providers

* Update lib/exchange/provider/near_Intents_exchange_provider.dart

* add back old zcash currencies for backward compatibility, thanks Czarek

* minor fix [skip ci]

---------

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

* Update android/app/src/main/AndroidManifestBase.xml [skip ci]

* Update ios/Runner/InfoBase.plist [skip ci]

* fix: remove unused code fix: macos fix: disable on linux and macos

* update build numbers [skip ci]

* Add zcash to birdpay

---------

Co-authored-by: Czarek Nakamoto <cyjan@mrcyjanek.net>
Co-authored-by: Serhii <borodenko.sv@gmail.com>

lib/entities/default_settings_migration.dart

@@ -52,6 +52,7 @@ const decredDefaultUri = "default-spv-nodes";
 const dogecoinDefaultNodeUri = 'dogecoin.stackwallet.com:50022';
 const baseDefaultNodeUri = 'base.nownodes.io';
 const arbitrumDefaultNodeUri = 'arbitrum.nownodes.io';
+const zcashDefaultNodeUri = 'zec-node.cakewallet.com:443';
 
 Future<void> defaultSettingsMigration(
     {required int version,
@@ -559,7 +560,14 @@ Future<void> defaultSettingsMigration(
          case 54:
           await _backupWowneroSeeds(havenSeedStore);
           break;
-
+        case 55:
+          await addWalletNodeList(nodes: nodes, type: WalletType.zcash);
+          await _changeDefaultNode(
+            nodes: nodes,
+            sharedPreferences: sharedPreferences,
+            type: WalletType.zcash,
+            currentNodePreferenceKey: PreferencesKey.currentZcashNodeIdKey,
+          );
         default:
           break;
       }
@@ -672,6 +680,8 @@ String _getDefaultNodeUri(WalletType type) {
       return baseDefaultNodeUri;
     case WalletType.arbitrum:
       return arbitrumDefaultNodeUri;
+    case WalletType.zcash:
+      return zcashDefaultNodeUri;
     case WalletType.banano:
     case WalletType.none:
       return '';
@@ -1092,6 +1102,7 @@ Future<void> checkCurrentNodes(
   final currentTronNodeId = sharedPreferences.getInt(PreferencesKey.currentTronNodeIdKey);
   final currentWowneroNodeId = sharedPreferences.getInt(PreferencesKey.currentWowneroNodeIdKey);
   final currentZanoNodeId = sharedPreferences.getInt(PreferencesKey.currentZanoNodeIdKey);
+  final currentZcashNodeId = sharedPreferences.getInt(PreferencesKey.currentZcashNodeIdKey);
   final currentMoneroNode =
       nodeSource.values.firstWhereOrNull((node) => node.key == currentMoneroNodeId);
   final currentBitcoinElectrumServer =
@@ -1126,6 +1137,8 @@ Future<void> checkCurrentNodes(
       nodeSource.values.firstWhereOrNull((node) => node.key == currentWowneroNodeId);
   final currentZanoNode =
       nodeSource.values.firstWhereOrNull((node) => node.key == currentZanoNodeId);
+  final currentZcashNode =
+      nodeSource.values.firstWhereOrNull((node) => node.key == currentZcashNodeId);
 
   if (currentMoneroNode == null) {
     final newCakeWalletNode = Node(uri: newCakeWalletMoneroUri, type: WalletType.monero);
@@ -1240,6 +1253,12 @@ Future<void> checkCurrentNodes(
     await nodeSource.add(node);
     await sharedPreferences.setInt(PreferencesKey.currentDecredNodeIdKey, node.key as int);
   }
+
+  if (currentZcashNode == null) {
+    final node = Node(uri: zcashDefaultNodeUri, type: WalletType.zcash, useSSL: true);
+    await nodeSource.add(node);
+    await sharedPreferences.setInt(PreferencesKey.currentZcashNodeIdKey, node.key as int);
+  }
 }
 
 Future<void> resetBitcoinElectrumServer(

lib/entities/hash_wallet_identifier.dart

@@ -2,6 +2,7 @@ import 'dart:convert';
 
 import 'package:cake_wallet/.secrets.g.dart' as secrets;
 import 'package:cw_core/wallet_base.dart';
+import 'package:flutter/foundation.dart';
 import 'package:hashlib/hashlib.dart';
 
 String createHashedWalletIdentifier(WalletBase wallet) {
@@ -9,8 +10,10 @@ String createHashedWalletIdentifier(WalletBase wallet) {
 
   final salt = secrets.walletGroupSalt;
   final combined = '$salt.$hashContent';
-
   final bytes = utf8.encode(combined);
   final digest = sha256.convert(bytes);
+  if (kDebugMode) {
+    return "$combined;$digest";
+  }
   return digest.toString();
 }

lib/entities/node_list.dart

@@ -56,6 +56,9 @@ Future<List<Node>> loadDefaultNodes(WalletType type) async {
     case WalletType.arbitrum:
       path = 'assets/arbitrum_node_list.yml';
       break;
+    case WalletType.zcash:
+      path = 'assets/zcash_node_list.yml';
+      break;
     case WalletType.banano:
     case WalletType.none:
       path = '';
@@ -109,6 +112,7 @@ Future<void> resetToDefault(Box<Node> nodeSource) async {
   final dogecoinElectrumServerList = await loadDefaultNodes(WalletType.dogecoin);
   final baseNodes = await loadDefaultNodes(WalletType.base);
   final arbitrumNodes = await loadDefaultNodes(WalletType.arbitrum);
+  final zcashNodes = await loadDefaultNodes(WalletType.zcash);
 
   final nodes = moneroNodes +
       bitcoinElectrumServerList +
@@ -124,7 +128,8 @@ Future<void> resetToDefault(Box<Node> nodeSource) async {
       decredNodes +
       dogecoinElectrumServerList +
       baseNodes +
-      arbitrumNodes;
+      arbitrumNodes +
+      zcashNodes;
 
   await nodeSource.clear();
   await nodeSource.addAll(nodes);

lib/entities/parse_address_from_domain.dart

@@ -175,7 +175,7 @@ class AddressResolver {
     var addressPattern = AddressValidator.getAddressFromStringPattern(type);
 
     if (addressPattern == null) {
-      throw Exception('Unexpected token: $type for getAddressFromStringPattern');
+      return null;
     }
 
     if (requireSurroundingWhitespaces)

lib/entities/preferences_key.dart

@@ -22,6 +22,7 @@ class PreferencesKey {
   static const currentSolanaNodeIdKey = 'current_node_id_sol';
   static const currentTronNodeIdKey = 'current_node_id_trx';
   static const currentWowneroNodeIdKey = 'current_node_id_wow';
+  static const currentZcashNodeIdKey = 'current_node_id_zec';
   static const currentTransactionPriorityKeyLegacy = 'current_fee_priority';
   static const currentBalanceDisplayModeKey = 'current_balance_display_mode';
   static const shouldSaveRecipientAddressKey = 'save_recipient_address';

lib/entities/priority_for_wallet_type.dart

@@ -6,6 +6,7 @@ import 'package:cake_wallet/monero/monero.dart';
 import 'package:cake_wallet/wownero/wownero.dart';
 import 'package:cake_wallet/zano/zano.dart';
 import 'package:cake_wallet/decred/decred.dart';
+import 'package:cake_wallet/zcash/zcash.dart';
 import 'package:cw_core/transaction_priority.dart';
 import 'package:cw_core/wallet_type.dart';
 
@@ -37,6 +38,8 @@ List<TransactionPriority> priorityForWalletType(WalletType type) {
       return zano!.getTransactionPriorities();
     case WalletType.decred:
       return decred!.getTransactionPriorities();
+    case WalletType.zcash:
+      return zcash!.getTransactionPriorities();
     case WalletType.none:
     case WalletType.haven:
       return [];