Release 4.4.3 (#415)

* Add ability for change password for wallets classes.

* Update generateWalletPassword

* Add WalletLoadingService

* Add update monero password after wallet loading.

* Update version for Cake Wallet to 4.4.2 (103)

* Changed version for Cake Wallet to 4.4.3 (104).

* Changed version for Cake Wallet android

* Changed version for Monero.com ios and android.

lib/core/generate_wallet_password.dart

@@ -1,12 +1,6 @@
 import 'package:uuid/uuid.dart';
 import 'package:cw_core/key.dart';
-import 'package:cw_core/wallet_type.dart';
 
-String generateWalletPassword(WalletType type) {
-  switch (type) {
-    case WalletType.monero:
-      return Uuid().v4();
-    default:
-      return generateKey();
-  }
+String generateWalletPassword() {
+  return generateKey();
 }

lib/core/wallet_creation_service.dart

@@ -1,5 +1,6 @@
 import 'package:cake_wallet/di.dart';
 import 'package:cw_core/wallet_info.dart';
+import 'package:cake_wallet/entities/preferences_key.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
 import 'package:hive/hive.dart';
@@ -31,6 +32,8 @@ class WalletCreationService {
   final Box<WalletInfo> walletInfoSource;
   WalletService _service;
 
+  static const _isNewMoneroWalletPasswordUpdated = true;
+
   void changeWalletType({@required WalletType type}) {
     this.type = type;
     _service = getIt.get<WalletService>(param1: type);
@@ -51,28 +54,55 @@ class WalletCreationService {
 
   Future<WalletBase> create(WalletCredentials credentials) async {
     checkIfExists(credentials.name);
-    final password = generateWalletPassword(type);
+    final password = generateWalletPassword();
     credentials.password = password;
     await keyService.saveWalletPassword(
         password: password, walletName: credentials.name);
-    return await _service.create(credentials);
+    final wallet =  await _service.create(credentials);
+
+    if (wallet.type == WalletType.monero) {
+      await sharedPreferences
+        .setBool(
+          PreferencesKey.moneroWalletUpdateV1Key(wallet.name),
+          _isNewMoneroWalletPasswordUpdated);
+    }
+
+    return wallet;
   }
 
   Future<WalletBase> restoreFromKeys(WalletCredentials credentials) async {
     checkIfExists(credentials.name);
-    final password = generateWalletPassword(type);
+    final password = generateWalletPassword();
     credentials.password = password;
     await keyService.saveWalletPassword(
         password: password, walletName: credentials.name);
-    return await _service.restoreFromKeys(credentials);
+    final wallet = await _service.restoreFromKeys(credentials);
+
+    if (wallet.type == WalletType.monero) {
+      await sharedPreferences
+        .setBool(
+          PreferencesKey.moneroWalletUpdateV1Key(wallet.name),
+          _isNewMoneroWalletPasswordUpdated);
+    }
+
+    return wallet;
   }
 
   Future<WalletBase> restoreFromSeed(WalletCredentials credentials) async {
     checkIfExists(credentials.name);
-    final password = generateWalletPassword(type);
+    final password = generateWalletPassword();
     credentials.password = password;
     await keyService.saveWalletPassword(
         password: password, walletName: credentials.name);
-    return await _service.restoreFromSeed(credentials);
+    final wallet = await _service.restoreFromSeed(credentials);
+
+    if (wallet.type == WalletType.monero) {
+      await sharedPreferences
+        .setBool(
+          PreferencesKey.moneroWalletUpdateV1Key(wallet.name),
+          _isNewMoneroWalletPasswordUpdated);
+    }
+
+    return wallet;
   }
 }

lib/core/wallet_loading_service.dart

@@ -0,0 +1,52 @@
+import 'package:cake_wallet/core/generate_wallet_password.dart';
+import 'package:cake_wallet/core/key_service.dart';
+import 'package:cake_wallet/entities/preferences_key.dart';
+import 'package:cw_core/wallet_base.dart';
+import 'package:cw_core/wallet_service.dart';
+import 'package:cw_core/wallet_type.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+class WalletLoadingService {
+	WalletLoadingService(
+		this.sharedPreferences,
+		this.keyService,
+		this.walletServiceFactory);
+	
+	final SharedPreferences sharedPreferences;
+	final KeyService keyService;
+	final WalletService Function(WalletType type) walletServiceFactory;
+
+	Future<WalletBase> load(WalletType type, String name) async {
+		if (walletServiceFactory == null) {
+			throw Exception('WalletLoadingService.walletServiceFactory is not set');
+		}
+		final walletService = walletServiceFactory?.call(type);
+		final password = await keyService.getWalletPassword(walletName: name);
+  		final wallet = await walletService.openWallet(name, password);
+
+  		if (type == WalletType.monero) {
+  			await upateMoneroWalletPassword(wallet);
+  		}
+
+  		return wallet;
+	}
+
+	Future<void> upateMoneroWalletPassword(WalletBase wallet) async {
+		final key = PreferencesKey.moneroWalletUpdateV1Key(wallet.name);
+		var isPasswordUpdated = sharedPreferences.getBool(key) ?? false;
+
+		if (isPasswordUpdated) {
+			return;
+		}
+
+		final password = generateWalletPassword();
+		// Save new generated password with backup key for case
+		// if wallet will change password, but it will faild to updated in secure storage
+		final bakWalletName = '#__${wallet.name}_bak__#';
+		await keyService.saveWalletPassword(walletName: bakWalletName, password: password);
+		await wallet.changePassword(password);
+		await keyService.saveWalletPassword(walletName: wallet.name, password: password);
+		isPasswordUpdated = true;
+		await sharedPreferences.setBool(key, isPasswordUpdated);
+	}
+}