Merge 8a12e2c2c7 into 1a5601f755

.github/workflows/automated_integration_test.yml

@@ -55,7 +55,7 @@ jobs:
      - name: Flutter action
        uses: subosito/flutter-action@v1
        with:
-         flutter-version: "3.27.0"
+         flutter-version: "3.27.4"
          channel: stable
 
      - name: Install package dependencies

.github/workflows/pr_test_build_android.yml

@@ -9,7 +9,7 @@ jobs:
   PR_test_build:
     runs-on: linux-amd64
     container:
-      image: ghcr.io/cake-tech/cake_wallet:debian12-flutter3.27.0-go1.24.1-ruststablenightly
+      image: ghcr.io/cake-tech/cake_wallet:debian12-flutter3.27.4-go1.24.1-ruststablenightly
       env:
         STORE_PASS: test@cake_wallet
         KEY_PASS: test@cake_wallet

.github/workflows/pr_test_build_linux.yml

@@ -9,7 +9,7 @@ jobs:
   PR_test_build:
     runs-on: linux-amd64
     container:
-      image: ghcr.io/cake-tech/cake_wallet:debian12-flutter3.27.0-go1.24.1-ruststablenightly
+      image: ghcr.io/cake-tech/cake_wallet:debian12-flutter3.27.4-go1.24.1-ruststablenightly
       env:
         STORE_PASS: test@cake_wallet
         KEY_PASS: test@cake_wallet

Dockerfile

@@ -1,4 +1,4 @@
-# docker buildx build --push --pull --platform linux/amd64,linux/arm64 . -f Dockerfile -t ghcr.io/cake-tech/cake_wallet:debian12-flutter3.27.0-go1.24.1-ruststablenightly
+# docker buildx build --push --pull --platform linux/amd64,linux/arm64 . -f Dockerfile -t ghcr.io/cake-tech/cake_wallet:debian12-flutter3.27.4-go1.24.1-ruststablenightly
 
 # Heavily inspired by cirrusci images
 # https://github.com/cirruslabs/docker-images-android/blob/master/sdk/tools/Dockerfile
@@ -15,7 +15,7 @@ LABEL org.opencontainers.image.source=https://github.com/cake-tech/cake_wallet
 ENV GOLANG_VERSION=1.24.1
 
 # Pin Flutter version to latest known-working version
-ENV FLUTTER_VERSION=3.27.0
+ENV FLUTTER_VERSION=3.27.4
 
 # Pin Android Studio, platform, and build tools versions to latest known-working version
 # Comes from https://developer.android.com/studio/#command-tools

cw_bitcoin/lib/bitcoin_receive_page_option.dart

@@ -28,6 +28,16 @@ class BitcoinReceivePageOption implements ReceivePageOption {
     BitcoinReceivePageOption.p2pkh
   ];
 
+  static const allViewOnly = [
+    BitcoinReceivePageOption.p2wpkh,
+    // TODO: uncomment this after we properly derive keys and not use m/84 for
+    // all of them (as this breaks cupcake)
+    // BitcoinReceivePageOption.p2tr,
+    // BitcoinReceivePageOption.p2wsh,
+    // BitcoinReceivePageOption.p2sh,
+    // BitcoinReceivePageOption.p2pkh
+  ];
+
   static const allLitecoin = [
     BitcoinReceivePageOption.p2wpkh,
     BitcoinReceivePageOption.mweb,

cw_bitcoin/lib/bitcoin_wallet.dart

@@ -24,6 +24,7 @@ import 'package:cw_core/encryption_file_utils.dart';
 import 'package:cw_core/payjoin_session.dart';
 import 'package:cw_core/pending_transaction.dart';
 import 'package:cw_core/unspent_coins_info.dart';
+import 'package:cw_core/utils/print_verbose.dart';
 import 'package:cw_core/wallet_info.dart';
 import 'package:cw_core/wallet_keys_file.dart';
 import 'package:flutter/foundation.dart';
@@ -32,6 +33,9 @@ import 'package:ledger_bitcoin/ledger_bitcoin.dart';
 import 'package:ledger_bitcoin/psbt.dart';
 import 'package:ledger_flutter_plus/ledger_flutter_plus.dart';
 import 'package:mobx/mobx.dart';
+import 'package:ur/cbor_lite.dart';
+import 'package:ur/ur.dart';
+import 'package:ur/ur_decoder.dart';
 
 part 'bitcoin_wallet.g.dart';
 
@@ -352,7 +356,7 @@ abstract class BitcoinWalletBase extends ElectrumWallet with Store {
         as PendingBitcoinTransaction;
 
     final payjoinUri = credentials.payjoinUri;
-    if (payjoinUri == null) return tx;
+    if (payjoinUri == null && !tx.shouldCommitUR()) return tx;
 
     final transaction = await buildPsbt(
         utxos: tx.utxos,
@@ -370,14 +374,19 @@ abstract class BitcoinWalletBase extends ElectrumWallet with Store {
         outputOrdering: BitcoinOrdering.none,
         enableRBF: true,
         publicKeys: tx.publicKeys!,
-        masterFingerprint: Uint8List(0));
+        masterFingerprint: Uint8List.fromList([0, 0, 0, 0]));
 
-    final originalPsbt = await signPsbt(
+    if (tx.shouldCommitUR()) {
-        base64.encode(transaction.asPsbtV0()), getUtxoWithPrivateKeys());
+     tx.unsignedPsbt = transaction.asPsbtV0();
+     return tx;
+    }
+
+    final originalPsbt =
+        await signPsbt(base64.encode(transaction.asPsbtV0()), getUtxoWithPrivateKeys());
 
     tx.commitOverride = () async {
-      final sender = await payjoinManager.initSender(
+      final sender =
-          payjoinUri, originalPsbt, int.parse(tx.feeRate));
+          await payjoinManager.initSender(payjoinUri!, originalPsbt, int.parse(tx.feeRate));
       payjoinManager.spawnNewSender(
           sender: sender, pjUrl: payjoinUri, amount: BigInt.from(tx.amount));
     };
@@ -405,6 +414,7 @@ abstract class BitcoinWalletBase extends ElectrumWallet with Store {
       feeRate: "",
       network: network,
       hasChange: true,
+      isViewOnly: false,
     ).commit();
   }
 
@@ -430,6 +440,44 @@ abstract class BitcoinWalletBase extends ElectrumWallet with Store {
     return base64Encode(psbt.asPsbtV0());
   }
 
+  Future<void> commitPsbtUR(List<String> urCodes) async {
+    if (urCodes.isEmpty) throw Exception("No QR code got scanned");
+    bool isUr = urCodes.any((str) {
+      return str.startsWith("ur:psbt/");
+    });
+    if (isUr) {
+      final ur = URDecoder();
+      for (final inp in urCodes) {
+        ur.receivePart(inp);
+      }
+      final result = (ur.result as UR);
+      final cbor = result.cbor;
+      final cborDecoder = CBORDecoder(cbor);
+      final out = cborDecoder.decodeBytes();
+      final bytes = out.$1;
+      final base64psbt = base64Encode(bytes);
+      final psbt = PsbtV2()..deserializeV0(base64Decode(base64psbt));
+
+      // psbt.finalize();
+      final finalized = base64Encode(psbt.serialize());
+      await commitPsbt(finalized);
+    } else {
+      final btcTx = BtcTransaction.fromRaw(urCodes.first);
+
+      return PendingBitcoinTransaction(
+        btcTx,
+        type,
+        electrumClient: electrumClient,
+        amount: 0,
+        fee: 0,
+        feeRate: "",
+        network: network,
+        hasChange: true,
+        isViewOnly: false,
+      ).commit();
+    }
+  }
+
   @override
   Future<String> signMessage(String message, {String? address = null}) async {
     if (walletInfo.isHardwareWallet) {

cw_bitcoin/lib/bitcoin_wallet_creation_credentials.dart

@@ -54,6 +54,17 @@ class BitcoinRestoreWalletFromWIFCredentials extends WalletCredentials {
   final String wif;
 }
 
+class BitcoinWalletFromKeysCredentials extends WalletCredentials {
+  BitcoinWalletFromKeysCredentials({
+    required String name,
+    required String password,
+    required this.xpub,
+    WalletInfo? walletInfo,
+  }) : super(name: name, password: password, walletInfo: walletInfo);
+
+  final String xpub;
+}
+
 class BitcoinRestoreWalletFromHardware extends WalletCredentials {
   BitcoinRestoreWalletFromHardware({
     required String name,

cw_bitcoin/lib/bitcoin_wallet_keys.dart

@@ -1,7 +1,15 @@
 class BitcoinWalletKeys {
-  const BitcoinWalletKeys({required this.wif, required this.privateKey, required this.publicKey});
+  const BitcoinWalletKeys({required this.wif, required this.privateKey, required this.publicKey, required this.xpub});
 
   final String wif;
   final String privateKey;
   final String publicKey;
+  final String xpub;
+
+  Map<String, String> toJson() => {
+    'wif': wif,
+    'privateKey': privateKey,
+    'publicKey': publicKey,
+    'xpub': xpub
+  };
 }

cw_bitcoin/lib/bitcoin_wallet_service.dart

@@ -20,7 +20,7 @@ import 'package:bip39/bip39.dart' as bip39;
 class BitcoinWalletService extends WalletService<
     BitcoinNewWalletCredentials,
     BitcoinRestoreWalletFromSeedCredentials,
-    BitcoinRestoreWalletFromWIFCredentials,
+    BitcoinWalletFromKeysCredentials,
     BitcoinRestoreWalletFromHardware> {
   BitcoinWalletService(this.walletInfoSource, this.unspentCoinsInfoSource,
       this.payjoinSessionSource, this.alwaysScan, this.isDirect);
@@ -169,9 +169,25 @@ class BitcoinWalletService extends WalletService<
   }
 
   @override
-  Future<BitcoinWallet> restoreFromKeys(BitcoinRestoreWalletFromWIFCredentials credentials,
+  Future<BitcoinWallet> restoreFromKeys(BitcoinWalletFromKeysCredentials credentials,
-          {bool? isTestnet}) async =>
+          {bool? isTestnet}) async {
-      throw UnimplementedError();
+    final network = isTestnet == true ? BitcoinNetwork.testnet : BitcoinNetwork.mainnet;
+    credentials.walletInfo?.network = network.value;
+
+    final wallet = await BitcoinWallet(
+      password: credentials.password!,
+      xpub: credentials.xpub,
+      walletInfo: credentials.walletInfo!,
+      unspentCoinsInfo: unspentCoinsInfoSource,
+      networkParam: network,
+      encryptionFileUtils: encryptionFileUtilsFor(isDirect),
+      payjoinBox: payjoinSessionSource,
+    );
+
+    await wallet.save();
+    await wallet.init();
+    return wallet;
+  }
 
   @override
   Future<BitcoinWallet> restoreFromSeed(BitcoinRestoreWalletFromSeedCredentials credentials,

cw_bitcoin/lib/electrum_wallet.dart

@@ -280,11 +280,26 @@ abstract class ElectrumWalletBase
   }
 
   @override
-  BitcoinWalletKeys get keys => BitcoinWalletKeys(
+  BitcoinWalletKeys get keys {
-        wif: WifEncoder.encode(hd.privateKey.raw, netVer: network.wifNetVer),
+    String? wif;
-        privateKey: hd.privateKey.toHex(),
+    String? privateKey;
-        publicKey: hd.publicKey.toHex(),
+    String? publicKey;
-      );
+    try {
+      wif = WifEncoder.encode(hd.privateKey.raw, netVer: network.wifNetVer);
+    } catch (_) {}
+    try {
+      privateKey = hd.privateKey.toHex();
+    } catch (_) {}
+    try {
+      publicKey = hd.publicKey.toHex();
+    } catch (_) {}
+    return BitcoinWalletKeys(
+      wif: wif ?? '',
+      privateKey: privateKey ?? '',
+      publicKey: publicKey ?? '',
+      xpub: xpub,
+    );
+  }
 
   String _password;
   List<BitcoinUnspent> unspentCoins;
@@ -666,7 +681,7 @@ abstract class ElectrumWalletBase
         );
         spendsSilentPayment = true;
         isSilentPayment = true;
-      } else if (!isHardwareWallet) {
+      } else if (!isHardwareWallet && keys.privateKey.isNotEmpty) {
         privkey =
             generateECPrivate(hd: hd, index: utx.bitcoinAddressRecord.index, network: network);
       }
@@ -1104,7 +1119,8 @@ abstract class ElectrumWalletBase
           network: network,
           hasChange: estimatedTx.hasChange,
           isSendAll: estimatedTx.isSendAll,
-          hasTaprootInputs: false, // ToDo: (Konsti) Support Taproot
+          hasTaprootInputs: false, // ToDo: (Konsti) Support Taproot,
+          isViewOnly: false,
         )..addListener((transaction) async {
             transactionHistory.addOne(transaction);
             await updateBalance();
@@ -1138,6 +1154,7 @@ abstract class ElectrumWalletBase
       bool hasTaprootInputs = false;
 
       final transaction = txb.buildTransaction((txDigest, utxo, publicKey, sighash) {
+        if (keys.privateKey.isEmpty) return "";
         String error = "Cannot find private key.";
 
         ECPrivateInfo? key;
@@ -1175,18 +1192,21 @@ abstract class ElectrumWalletBase
         }
       });
 
-      return PendingBitcoinTransaction(transaction, type,
+      return PendingBitcoinTransaction(
-          electrumClient: electrumClient,
+        transaction,
-          amount: estimatedTx.amount,
+        type,
-          fee: estimatedTx.fee,
+        electrumClient: electrumClient,
-          feeRate: feeRateInt.toString(),
+        amount: estimatedTx.amount,
-          network: network,
+        fee: estimatedTx.fee,
-          hasChange: estimatedTx.hasChange,
+        feeRate: feeRateInt.toString(),
-          isSendAll: estimatedTx.isSendAll,
+        network: network,
-          hasTaprootInputs: hasTaprootInputs,
+        hasChange: estimatedTx.hasChange,
-          utxos: estimatedTx.utxos,
+        isSendAll: estimatedTx.isSendAll,
-          publicKeys: estimatedTx.publicKeys)
+        hasTaprootInputs: hasTaprootInputs,
-        ..addListener((transaction) async {
+        utxos: estimatedTx.utxos,
+        publicKeys: estimatedTx.publicKeys,
+        isViewOnly: keys.privateKey.isEmpty,
+      )..addListener((transaction) async {
           transactionHistory.addOne(transaction);
           if (estimatedTx.spendsSilentPayment) {
             transactionHistory.transactions.values.forEach((tx) {
@@ -1847,6 +1867,7 @@ abstract class ElectrumWalletBase
         network: network,
         hasChange: changeOutputs.isNotEmpty,
         feeRate: newFee.toString(),
+        isViewOnly: keys.privateKey.isEmpty,
       )..addListener((transaction) async {
           transactionHistory.transactions.values.forEach((tx) {
             if (tx.id == hash) {

cw_bitcoin/lib/pending_bitcoin_transaction.dart

@@ -1,3 +1,7 @@
+import 'dart:convert';
+import 'dart:typed_data';
+
+import 'package:bbqrdart/bbqrdart.dart';
 import 'package:cw_bitcoin/electrum_wallet.dart';
 import 'package:grpc/grpc.dart';
 import 'package:cw_bitcoin/exceptions.dart';
@@ -11,6 +15,9 @@ import 'package:cw_core/transaction_direction.dart';
 import 'package:cw_core/wallet_type.dart';
 import 'package:cw_mweb/cw_mweb.dart';
 import 'package:cw_mweb/mwebd.pb.dart';
+import 'package:ur/cbor_lite.dart';
+import 'package:ur/ur.dart';
+import 'package:ur/ur_encoder.dart';
 
 class PendingBitcoinTransaction with PendingTransaction {
   PendingBitcoinTransaction(
@@ -28,6 +35,8 @@ class PendingBitcoinTransaction with PendingTransaction {
     this.utxos = const [],
     this.publicKeys,
     this.commitOverride,
+    this.unsignedPsbt,
+    required this.isViewOnly,
   }) : _listeners = <void Function(ElectrumTransactionInfo transaction)>[];
 
   final WalletType type;
@@ -40,6 +49,7 @@ class PendingBitcoinTransaction with PendingTransaction {
   final bool isSendAll;
   final bool hasChange;
   final bool hasTaprootInputs;
+  final bool isViewOnly;
   List<UtxoWithAddress> utxos;
   bool isMweb;
   String? changeAddressOverride;
@@ -49,6 +59,8 @@ class PendingBitcoinTransaction with PendingTransaction {
   final Map<String, PublicKeyWithDerivationPath>? publicKeys;
   Future<void> Function()? commitOverride;
 
+  Uint8List? unsignedPsbt;
+
   @override
   String get id => idOverride ?? _tx.txId();
 
@@ -72,9 +84,11 @@ class PendingBitcoinTransaction with PendingTransaction {
     try {
       final change = _tx.outputs.firstWhere((out) => out.isChange);
       if (changeAddressOverride != null) {
-        return PendingChange(changeAddressOverride!, BtcUtils.fromSatoshi(change.amount));
+        return PendingChange(
+            changeAddressOverride!, BtcUtils.fromSatoshi(change.amount));
       }
-      return PendingChange(change.scriptPubKey.toAddress(), BtcUtils.fromSatoshi(change.amount));
+      return PendingChange(
+          change.scriptPubKey.toAddress(), BtcUtils.fromSatoshi(change.amount));
     } catch (_) {
       return null;
     }
@@ -123,12 +137,14 @@ class PendingBitcoinTransaction with PendingTransaction {
 
   Future<void> _ltcCommit() async {
     try {
-      final resp = await CwMweb.broadcast(BroadcastRequest(rawTx: BytesUtils.fromHexString(hex)));
+      final resp = await CwMweb.broadcast(
+          BroadcastRequest(rawTx: BytesUtils.fromHexString(hex)));
       idOverride = resp.txid;
     } on GrpcError catch (e) {
       throw BitcoinTransactionCommitFailed(errorMessage: e.message);
     } catch (e) {
-      throw BitcoinTransactionCommitFailed(errorMessage: "Unknown error: ${e.toString()}");
+      throw BitcoinTransactionCommitFailed(
+          errorMessage: "Unknown error: ${e.toString()}");
     }
   }
 
@@ -147,7 +163,8 @@ class PendingBitcoinTransaction with PendingTransaction {
     _listeners.forEach((listener) => listener(transactionInfo()));
   }
 
-  void addListener(void Function(ElectrumTransactionInfo transaction) listener) =>
+  void addListener(
+          void Function(ElectrumTransactionInfo transaction) listener) =>
       _listeners.add(listener);
 
   ElectrumTransactionInfo transactionInfo() => ElectrumTransactionInfo(type,
@@ -164,7 +181,38 @@ class PendingBitcoinTransaction with PendingTransaction {
       fee: fee);
 
   @override
-  Future<String?> commitUR() {
+  bool shouldCommitUR() => isViewOnly;
-    throw UnimplementedError();
+
+  @override
+  Future<Map<String, String>> commitUR() {
+    var sourceBytes = unsignedPsbt!;
+    var cborEncoder = CBOREncoder();
+    cborEncoder.encodeBytes(sourceBytes);
+    var ur = UR("psbt", cborEncoder.getBytes());
+    var urLegacy = UR("crypto-psbt", cborEncoder.getBytes());  
+    // var ur = UR("psbt", Uint8List.fromList(List.generate(64*1024, (int x) => x % 256)));    
+    var encoded = UREncoder(ur, 120);
+    var encodedLegacy = UREncoder(urLegacy, 120);
+    List<String> values = [];
+    List<String> valuesLegacy = [];
+    while (!encoded.isComplete) {
+      values.add(encoded.nextPart());
+      valuesLegacy.add(encodedLegacy.nextPart());
+    }
+
+    final bbqrObj = BBQRPsbt.fromUint8List(sourceBytes);
+    List<String> bbqr = [
+      bbqrObj.asString(),
+    ];
+    while (!bbqrObj.isDone) {
+      bbqrObj.next();
+      bbqr.add(bbqrObj.asString());
+    }
+
+    return Future.value({
+      "PSBT (bcur)": values.join("\n"),
+      "PSBT (bbqr)": bbqr.join("\n"),
+      "PSBT (bcur legacy)": valuesLegacy.join("\n"),
+    });
   }
 }

cw_bitcoin/pubspec.lock

@@ -46,6 +46,15 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.11.0"
+  bbqrdart:
+    dependency: "direct main"
+    description:
+      path: "."
+      ref: b0f3f72911221bafed0ab77359fccd64bc79d524
+      resolved-ref: b0f3f72911221bafed0ab77359fccd64bc79d524
+      url: "https://github.com/mrcyjanek/bbqrdart"
+    source: git
+    version: "1.0.0"
   bech32:
     dependency: "direct main"
     description:
@@ -588,8 +597,8 @@ packages:
     dependency: "direct main"
     description:
       path: "packages/ledger-bitcoin"
-      ref: trunk
+      ref: eab179d487cddda3f647f6608115a89662facde4
-      resolved-ref: e93254f3ff3f996fb91f65a1e7ceffb9f510b4c8
+      resolved-ref: eab179d487cddda3f647f6608115a89662facde4
       url: "https://github.com/cake-tech/ledger-flutter-plus-plugins"
     source: git
     version: "0.0.3"
@@ -1101,6 +1110,15 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.3.0"
+  ur:
+    dependency: "direct main"
+    description:
+      path: "."
+      ref: "5738f70d0ec3d50977ac3dd01fed62939600238b"
+      resolved-ref: "5738f70d0ec3d50977ac3dd01fed62939600238b"
+      url: "https://github.com/bukata-sa/bc-ur-dart"
+    source: git
+    version: "0.1.0"
   vector_math:
     dependency: transitive
     description:
@@ -1182,5 +1200,5 @@ packages:
     source: hosted
     version: "2.2.2"
 sdks:
-  dart: ">=3.6.0 <4.0.0"
+  dart: ">=3.6.2 <4.0.0"
   flutter: ">=3.27.0"

cw_bitcoin/pubspec.yaml

@@ -49,7 +49,7 @@ dependencies:
     git:
       url: https://github.com/cake-tech/ledger-flutter-plus-plugins
       path: packages/ledger-bitcoin
-      ref: trunk
+      ref: eab179d487cddda3f647f6608115a89662facde4
   ledger_litecoin:
     git:
       url: https://github.com/cake-tech/ledger-flutter-plus-plugins
@@ -58,6 +58,14 @@ dependencies:
     git:
       url: https://github.com/sneurlax/socks_socket
       ref: e6232c53c1595469931ababa878759a067c02e94
+  ur:
+    git:
+      url: https://github.com/bukata-sa/bc-ur-dart
+      ref: 5738f70d0ec3d50977ac3dd01fed62939600238b
+  bbqrdart:
+    git:
+      url: https://github.com/mrcyjanek/bbqrdart
+      ref: b0f3f72911221bafed0ab77359fccd64bc79d524
 
 dev_dependencies:
   flutter_test:

cw_bitcoin_cash/lib/src/pending_bitcoin_cash_transaction.dart

@@ -86,7 +86,7 @@ class PendingBitcoinCashTransaction with PendingTransaction {
       isReplaced: false,
       );
   @override
-  Future<String?> commitUR() {
+  Future<Map<String, String>> commitUR() {
     throw UnimplementedError();
   }
 }

cw_core/lib/pending_transaction.dart

@@ -17,5 +17,5 @@ mixin PendingTransaction {
   bool shouldCommitUR() => false;
 
   Future<void> commit();
-  Future<String?> commitUR();
+  Future<Map<String, String>> commitUR();
 }

cw_core/pubspec.lock

@@ -829,4 +829,4 @@ packages:
     version: "3.1.3"
 sdks:
   dart: ">=3.6.0 <4.0.0"
-  flutter: ">=3.27.0"
+  flutter: ">=3.27.4"

cw_decred/lib/pending_transaction.dart

@@ -33,7 +33,7 @@ class DecredPendingTransaction with PendingTransaction {
   }
 
   @override
-  Future<String?> commitUR() {
+  Future<Map<String, String>> commitUR() {
     throw UnimplementedError();
   }
 }

cw_evm/lib/pending_evm_chain_transaction.dart

@@ -52,7 +52,7 @@ class PendingEVMChainTransaction with PendingTransaction {
   }
   
   @override
-  Future<String?> commitUR() {
+  Future<Map<String, String>> commitUR() {
     throw UnimplementedError();
   }
 }

cw_monero/lib/pending_monero_transaction.dart

@@ -39,6 +39,7 @@ class PendingMoneroTransaction with PendingTransaction {
   String get feeFormatted => AmountConverter.amountIntToString(
       CryptoCurrency.xmr, pendingTransactionDescription.fee);
 
+  @override
   bool shouldCommitUR() => isViewOnly;
 
   @override
@@ -64,7 +65,7 @@ class PendingMoneroTransaction with PendingTransaction {
   }
 
   @override
-  Future<String?> commitUR() async {
+  Future<Map<String, String>> commitUR() async {
     try {
       final ret = await monero_transaction_history.commitTransactionFromPointerAddress(
           address: pendingTransactionDescription.pointerAddress,
@@ -74,7 +75,10 @@ class PendingMoneroTransaction with PendingTransaction {
         await Future.delayed(const Duration(milliseconds: 250));
         await wallet.fetchTransactions();
       }());
-      return ret;
+      if (ret == null) return {};
+      return {
+        "xmr-txsigned": ret,
+      };
     } catch (e) {
       final message = e.toString();
 

cw_nano/lib/pending_nano_transaction.dart

@@ -39,7 +39,7 @@ class PendingNanoTransaction with PendingTransaction {
   }
   
   @override
-  Future<String?> commitUR() {
+  Future<Map<String, String>> commitUR() {
     throw UnimplementedError();
   }
 }

cw_nano/pubspec.lock

@@ -978,4 +978,4 @@ packages:
     version: "3.1.3"
 sdks:
   dart: ">=3.6.0 <4.0.0"
-  flutter: ">=3.27.0"
+  flutter: ">=3.27.4"

cw_solana/lib/pending_solana_transaction.dart

@@ -41,7 +41,7 @@ class PendingSolanaTransaction with PendingTransaction {
   String get id => '';
   
   @override
-  Future<String?> commitUR() {
+  Future<Map<String, String>> commitUR() {
     throw UnimplementedError();
   }
 }

cw_tron/lib/pending_tron_transaction.dart

@@ -32,7 +32,7 @@ class PendingTronTransaction with PendingTransaction {
   String get id => '';
   
   @override
-  Future<String?> commitUR() {
+  Future<Map<String, String>> commitUR() {
     throw UnimplementedError();
   }
 }

cw_wownero/lib/pending_wownero_transaction.dart

@@ -52,7 +52,7 @@ class PendingWowneroTransaction with PendingTransaction {
   }
   
   @override
-  Future<String?> commitUR() {
+  Future<Map<String, String>> commitUR() {
     throw UnimplementedError();
   }
 }

cw_zano/lib/model/pending_zano_transaction.dart

@@ -46,7 +46,7 @@ class PendingZanoTransaction with PendingTransaction {
   }
   
   @override
-  Future<String?> commitUR() {
+  Future<Map<String, String>> commitUR() {
     throw UnimplementedError();
   }
 }

docs/builds/ANDROID.md

@@ -18,8 +18,8 @@ In order to build the latest version of Cake Wallet, simply run the following:
 git clone --branch main https://github.com/cake-tech/cake_wallet.git
 # NOTE: Replace `main` with the latest release tag available at https://github.com/cake-tech/cake_wallet/releases/latest.
 cd cake_wallet
-# docker build -t ghcr.io/cake-tech/cake_wallet:debian12-flutter3.27.0-go1.24.1-ruststablenightly . # Uncomment to build the docker image yourself instead of pulling it from the registry
+# docker build -t ghcr.io/cake-tech/cake_wallet:debian12-flutter3.27.4-go1.24.1-ruststablenightly . # Uncomment to build the docker image yourself instead of pulling it from the registry
-docker run -v$(pwd):$(pwd) -w $(pwd) -i --rm ghcr.io/cake-tech/cake_wallet:debian12-flutter3.27.0-go1.24.1-ruststablenightly bash -x << EOF
+docker run -v$(pwd):$(pwd) -w $(pwd) -i --rm ghcr.io/cake-tech/cake_wallet:debian12-flutter3.27.4-go1.24.1-ruststablenightly bash -x << EOF
 set -x -e
 pushd scripts/android
     source ./app_env.sh cakewallet

docs/builds/IOS.md

@@ -7,7 +7,7 @@ The following are the system requirements to build Cake Wallet for your iOS devi
 ```txt
 macOS 15.3.1
 Xcode 16.2
-Flutter 3.27.0
+Flutter 3.27.4
 ```
 
 NOTE: Newer versions of macOS and Xcode may also work, but have not been confirmed to work by the Cake team.
@@ -43,9 +43,9 @@ To enable iOS build support for Xcode, perform the following:
 
 ### 3. Installing Flutter
 
-Install Flutter, specifically version `3.27.0` by following the [official docs](https://docs.flutter.dev/get-started/install/macos/desktop?tab=download).
+Install Flutter, specifically version `3.27.4` by following the [official docs](https://docs.flutter.dev/get-started/install/macos/desktop?tab=download).
 
-NOTE: as `3.27.0` is not the latest version, you'll need to download it from <https://docs.flutter.dev/release/archive> instead of the link in the docs above.
+NOTE: as `3.27.4` is not the latest version, you'll need to download it from <https://docs.flutter.dev/release/archive> instead of the link in the docs above.
 
 ### 4. Installing Rust
 
@@ -65,7 +65,7 @@ The output of this command should appear like this, indicating successful instal
 
 ```zsh
 Doctor summary (to see all details, run flutter doctor -v):
-[✓] Flutter (Channel stable, 3.27.0, on macOS 15.x.x)
+[✓] Flutter (Channel stable, 3.27.4, on macOS 15.x.x)
 [✓] Xcode - develop for iOS and macOS (Xcode 16.2)
 ```
 

docs/builds/LINUX.md

@@ -20,8 +20,8 @@ In order to build the latest version of Cake Wallet, simply run the following:
 git clone --branch main https://github.com/cake-tech/cake_wallet.git
 # NOTE: Replace `main` with the latest release tag available at https://github.com/cake-tech/cake_wallet/releases/latest.
 cd cake_wallet
-# docker build -t ghcr.io/cake-tech/cake_wallet:debian12-flutter3.27.0-go1.24.1-ruststablenightly . # Uncomment to build the docker image yourself instead of pulling it from the registry
+# docker build -t ghcr.io/cake-tech/cake_wallet:debian12-flutter3.27.4-go1.24.1-ruststablenightly . # Uncomment to build the docker image yourself instead of pulling it from the registry
-docker run --privileged -v$(pwd):$(pwd) -w $(pwd) -i --rm ghcr.io/cake-tech/cake_wallet:debian12-flutter3.27.0-go1.24.1-ruststablenightly bash -x << EOF
+docker run --privileged -v$(pwd):$(pwd) -w $(pwd) -i --rm ghcr.io/cake-tech/cake_wallet:debian12-flutter3.27.4-go1.24.1-ruststablenightly bash -x << EOF
 set -x -e
 pushd scripts
     ./gen_android_manifest.sh

docs/builds/MACOS.md

@@ -7,7 +7,7 @@ The following are the system requirements to build Cake Wallet for your macOS de
 ```txt
 macOS 15.3.1
 Xcode 16.2
-Flutter 3.27.0
+Flutter 3.27.4
 ```
 
 ### 1. Installing dependencies
@@ -34,9 +34,9 @@ sudo xcodebuild -runFirstLaunch
 
 ### 3. Installing Flutter
 
-Install Flutter, specifically version `3.27.0` by following the [official docs](https://docs.flutter.dev/get-started/install/macos/desktop?tab=download).
+Install Flutter, specifically version `3.27.4` by following the [official docs](https://docs.flutter.dev/get-started/install/macos/desktop?tab=download).
 
-NOTE: as `3.27.0` is not the latest version, you'll need to download it from <https://docs.flutter.dev/release/archive> instead of the link in the docs above.
+NOTE: as `3.27.4` is not the latest version, you'll need to download it from <https://docs.flutter.dev/release/archive> instead of the link in the docs above.
 
 ### 4. Installing Rust
 
@@ -56,7 +56,7 @@ The output of this command should appear like this, indicating successful instal
 
 ```zsh
 Doctor summary (to see all details, run flutter doctor -v):
-[✓] Flutter (Channel stable, 3.27.0, on macOS 15.x.x)
+[✓] Flutter (Channel stable, 3.27.4, on macOS 15.x.x)
 ...
 [✓] Xcode - develop for iOS and macOS (Xcode 16.2)
 ...

docs/builds/WINDOWS.md

@@ -6,18 +6,18 @@ The following are the system requirements to build Cake Wallet for your Windows
 
 ```txt
 Windows 10 or later (64-bit), x86-64 based
-Flutter 3.27.0
+Flutter 3.27.4
 ```
 
 ### 1. Installing Flutter
 
-Install Flutter, specifically version `3.27.0` by following the [official docs](https://docs.flutter.dev/get-started/install/windows).
+Install Flutter, specifically version `3.27.4` by following the [official docs](https://docs.flutter.dev/get-started/install/windows).
 
 In order for Flutter to function, you'll also need to enable Developer Mode:
 
 Start Menu > search for "Run" > type `ms-settings:developers`, and turn on Developer Mode.
 
-NOTE: as `3.27.0` is not the latest version, you'll need to download it from <https://docs.flutter.dev/release/archive> instead of the link in the docs above.
+NOTE: as `3.27.4` is not the latest version, you'll need to download it from <https://docs.flutter.dev/release/archive> instead of the link in the docs above.
 
 ### 2. Install Development Tools
 

lib/bitcoin/cw_bitcoin.dart

@@ -18,6 +18,14 @@ class CWBitcoin extends Bitcoin {
         passphrase: passphrase,
       );
 
+  @override
+  WalletCredentials createBitcoinWalletFromKeys({
+    required String name,
+    required String password,
+    required String xpub,
+  }) =>
+      BitcoinWalletFromKeysCredentials(name: name, password: password, xpub: xpub);
+
   @override
   WalletCredentials createBitcoinRestoreWalletFromWIFCredentials(
           {required String name,
@@ -62,11 +70,7 @@ class CWBitcoin extends Bitcoin {
     final bitcoinWallet = wallet as ElectrumWallet;
     final keys = bitcoinWallet.keys;
 
-    return <String, String>{
+    return bitcoinWallet.keys.toJson();
-      'wif': keys.wif,
-      'privateKey': keys.privateKey,
-      'publicKey': keys.publicKey
-    };
   }
 
   @override
@@ -276,7 +280,14 @@ class CWBitcoin extends Bitcoin {
   }
 
   @override
-  List<ReceivePageOption> getBitcoinReceivePageOptions() => BitcoinReceivePageOption.all;
+  List<ReceivePageOption> getBitcoinReceivePageOptions(Object wallet) {
+    final bitcoinWallet = wallet as ElectrumWallet;
+    final keys = bitcoinWallet.keys;
+    if (keys.privateKey.isEmpty) {
+      return BitcoinReceivePageOption.allViewOnly;
+    }
+    return BitcoinReceivePageOption.all;
+  }
 
   @override
   List<ReceivePageOption> getLitecoinReceivePageOptions() {
@@ -719,6 +730,12 @@ class CWBitcoin extends Bitcoin {
     }
   }
 
+  @override
+  Future<void> commitPsbtUR(Object wallet, List<String> urCodes) {
+    final _wallet = wallet as BitcoinWalletBase;
+    return _wallet.commitPsbtUR(urCodes);
+  }
+
   @override
   String getPayjoinEndpoint(Object wallet) {
     final _wallet = wallet as ElectrumWallet;

lib/di.dart

@@ -971,7 +971,7 @@ Future<void> setup({
   
   getIt.registerFactory(() => AnimatedURModel(getIt.get<AppStore>()));
 
-  getIt.registerFactoryParam<AnimatedURPage, String, void>((String urQr, _) =>
+  getIt.registerFactoryParam<AnimatedURPage, Map<String, String>, void>((Map<String, String> urQr, _) =>
     AnimatedURPage(getIt.get<AnimatedURModel>(), urQr: urQr));
 
   getIt.registerFactoryParam<ContactViewModel, ContactRecord?, void>(

lib/src/screens/restore/wallet_restore_from_keys_form.dart

@@ -198,14 +198,14 @@ class WalletRestoreFromKeysFormState extends State<WalletRestoreFromKeysForm> {
   Widget _restoreFromKeysFormFields() {
     // Decred can only restore a view only wallet with an account pubkey. Other
     // fields are not used.
-    if (widget.walletRestoreViewModel.type == WalletType.decred) {
+    if (widget.walletRestoreViewModel.onlyViewKeyRestore) {
       return Column(
         children: [
           BaseTextFormField(
             controller: viewKeyController,
             hintText: S.of(context).view_key_public,
             maxLines: null,
-          )
+          ),
         ],
       );
     }
@@ -253,13 +253,14 @@ class WalletRestoreFromKeysFormState extends State<WalletRestoreFromKeysForm> {
             maxLines: null,
           ),
         ),
-        BlockchainHeightWidget(
+        if (widget.walletRestoreViewModel.hasBlockchainHeightSelector)
-          key: blockchainHeightKey,
+          BlockchainHeightWidget(
-          hasDatePicker: widget.walletRestoreViewModel.type != WalletType.haven,
+            key: blockchainHeightKey,
-          onHeightChange: (_) => null,
+            hasDatePicker: widget.walletRestoreViewModel.type != WalletType.haven,
-          onHeightOrDateEntered: widget.onHeightOrDateEntered,
+            onHeightChange: (_) => null,
-          walletType: widget.walletRestoreViewModel.type,
+            onHeightOrDateEntered: widget.onHeightOrDateEntered,
-        ),
+            walletType: widget.walletRestoreViewModel.type,
+          ),
       ],
     );
   }

lib/src/screens/restore/wallet_restore_page.dart

@@ -199,7 +199,7 @@ class WalletRestorePage extends BasePage {
       credentials['seed'] =
           walletRestoreFromSeedFormKey.currentState!.seedWidgetStateKey.currentState!.text;
 
-      if (walletRestoreViewModel.hasBlockchainHeightLanguageSelector) {
+      if (walletRestoreViewModel.hasBlockchainHeightSelector) {
         credentials['height'] =
             walletRestoreFromSeedFormKey.currentState!.blockchainHeightKey.currentState?.height ??
                 -1;
@@ -219,7 +219,7 @@ class WalletRestorePage extends BasePage {
         credentials['name'] =
             walletRestoreFromKeysFormKey.currentState!.nameTextEditingController.text;
         credentials['viewKey'] = walletRestoreFromKeysFormKey.currentState!.viewKeyController.text;
-        if (walletRestoreViewModel.type != WalletType.decred) {
+        if (!walletRestoreViewModel.onlyViewKeyRestore) {
           credentials['address'] =
               walletRestoreFromKeysFormKey.currentState!.addressController.text;
           credentials['spendKey'] =
@@ -519,7 +519,7 @@ class _WalletRestorePageBodyState extends State<_WalletRestorePageBody>
         }
       },
       onViewKeyEntered: (bool entered) {
-        if (walletRestoreViewModel.type == WalletType.decred) {
+        if (widget.walletRestoreViewModel.onlyViewKeyRestore) {
           walletRestoreViewModel.isButtonEnabled = entered;
         }
       },
@@ -536,7 +536,7 @@ class _WalletRestorePageBodyState extends State<_WalletRestorePageBody>
       key: widget.walletRestoreFromSeedFormKey,
       restoredWallet: walletRestoreViewModel.restoredWallet,
       seedSettingsViewModel: widget.seedSettingsViewModel,
-      displayBlockHeightSelector: widget.walletRestoreViewModel.hasBlockchainHeightLanguageSelector,
+      displayBlockHeightSelector: widget.walletRestoreViewModel.hasBlockchainHeightSelector,
       displayLanguageSelector: widget.walletRestoreViewModel.hasSeedLanguageSelector,
       type: widget.walletRestoreViewModel.type,
       blockHeightFocusNode: widget.blockHeightFocusNode,
@@ -563,7 +563,7 @@ class _WalletRestorePageBodyState extends State<_WalletRestorePageBody>
   }
 
   void _validateOnChange({bool isPolyseed = false}) {
-    if (!isPolyseed && walletRestoreViewModel.hasBlockchainHeightLanguageSelector) {
+    if (!isPolyseed && walletRestoreViewModel.hasBlockchainHeightSelector) {
       final hasHeight = walletRestoreFromSeedFormKey
           .currentState?.blockchainHeightKey.currentState?.restoreHeightController.text.isNotEmpty;
 

lib/src/screens/ur/animated_ur_page.dart

@@ -1,5 +1,7 @@
 import 'dart:async';
 
+import 'package:bbqrdart/bbqrdart.dart';
+import 'package:cake_wallet/bitcoin/bitcoin.dart';
 import 'package:cake_wallet/entities/qr_scanner.dart';
 import 'package:cake_wallet/generated/i18n.dart';
 import 'package:cake_wallet/monero/monero.dart';
@@ -7,31 +9,33 @@ import 'package:cake_wallet/src/screens/base_page.dart';
 import 'package:cake_wallet/src/screens/receive/widgets/qr_image.dart';
 import 'package:cake_wallet/src/widgets/alert_with_one_action.dart';
 import 'package:cake_wallet/src/widgets/primary_button.dart';
+import 'package:cake_wallet/utils/clipboard_util.dart';
+import 'package:cake_wallet/utils/feature_flag.dart';
 import 'package:cake_wallet/utils/show_pop_up.dart';
 import 'package:cake_wallet/view_model/animated_ur_model.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 
 // ur:xmr-txunsigned - unsigned transaction
 //     should show a scanner afterwards.
 
 class AnimatedURPage extends BasePage {
   final bool isAll;
-  AnimatedURPage(this.animatedURmodel, {required String urQr, this.isAll = false}) {
+  AnimatedURPage(this.animatedURmodel, {
-    if (urQr == "export-outputs") {
+    required this.urQr,
-      this.urQr = monero!.exportOutputsUR(animatedURmodel.wallet, false);
+    this.isAll = false,
-    } else if (urQr == "export-outputs-all") {
+  });
-      this.urQr = monero!.exportOutputsUR(animatedURmodel.wallet, true);
-    } else {
-      this.urQr = urQr;
-    }
-  }
 
-  late String urQr;
+  late Map<String, String> urQr;
 
   final AnimatedURModel animatedURmodel;
 
   String get urQrType {
-    final first = urQr.trim().split("\n")[0];
+    if (urQr.values.first.trim().substring(0, 2) == BBQR.header) {
+      return BBQR.header;
+    }
+    if (urQr.isEmpty) return "unknown";
+    final first = urQr.values.first.trim().split("\n")[0];
     return first.split('/')[0];
   }
 
@@ -43,11 +47,11 @@ class AnimatedURPage extends BasePage {
         Padding(
           padding: const EdgeInsets.only(top: 64.0),
           child: URQR(
-            frames: urQr.trim().split("\n"),
+            urqr: urQr,
           ),
         ),
+        if (["ur:xmr-txunsigned", "ur:xmr-output", "ur:psbt", BBQR.header].contains(urQrType)) ...{
         SizedBox(height: 32),
-        if (urQrType == "ur:xmr-txunsigned" || urQrType == "ur:xmr-output")
           Padding(
             padding: const EdgeInsets.symmetric(horizontal: 16.0),
             child: SizedBox(
@@ -60,8 +64,11 @@ class AnimatedURPage extends BasePage {
               ),
             ),
           ),
-        SizedBox(height: 32),
+        },
-        if (urQrType == "ur:xmr-output" && !isAll) Padding(
+
+        if (urQrType == "ur:xmr-output" && !isAll) ...{
+          SizedBox(height: 32),
+          Padding(
             padding: const EdgeInsets.symmetric(horizontal: 16.0),
             child: SizedBox(
               width: double.maxFinite,
@@ -73,6 +80,7 @@ class AnimatedURPage extends BasePage {
               ),
             ),
           ),
+        },
       ],
     );
   }
@@ -81,7 +89,13 @@ class AnimatedURPage extends BasePage {
     Navigator.of(context).pushReplacement(
       MaterialPageRoute(
         builder: (context) {
-          return AnimatedURPage(animatedURmodel, urQr: "export-outputs-all", isAll: true);
+          return AnimatedURPage(
+            animatedURmodel,
+            urQr: {
+              "export-outputs-all": "export-outputs-all",
+            },
+            isAll: true,
+          );
         },
       ),
     );
@@ -106,6 +120,11 @@ class AnimatedURPage extends BasePage {
           Navigator.of(context).pop(true);
         }        
         break;
+      case "ur:psbt": // psbt
+        final ur = await presentQRScanner(context);
+        if (ur == null) return;
+        await bitcoin!.commitPsbtUR(animatedURmodel.wallet, ur.trim().split("\n"));
+        Navigator.of(context).pop(true);
       default:
         throw UnimplementedError("unable to handle UR: ${urQrType}");
     }
@@ -124,9 +143,9 @@ class AnimatedURPage extends BasePage {
 }
 
 class URQR extends StatefulWidget {
-  URQR({super.key, required this.frames});
+  URQR({super.key, required this.urqr});
 
-  List<String> frames;
+  final Map<String, String> urqr;
 
   @override
   // ignore: library_private_types_in_public_api
@@ -160,6 +179,24 @@ class _URQRState extends State<URQR> {
     super.dispose();
   }
 
+  late String selected = (widget.urqr.isEmpty) ? "unknown" : widget.urqr.keys.first;
+  int selectedInt = 0;
+
+  List<String> get frames {
+    return widget.urqr[selected]?.split("\n") ?? [];
+  }
+
+  late String nextLabel = widget.urqr.keys.toList()[(selectedInt + 1) % widget.urqr.length] ;
+
+  void next() {
+    final keys = widget.urqr.keys.toList();
+    selectedInt++;
+    setState(() {
+      nextLabel = keys[(selectedInt) % keys.length];
+      selected = keys[(selectedInt) % keys.length];
+    });
+  }
+
   @override
   Widget build(BuildContext context) {
     return Column(
@@ -168,10 +205,37 @@ class _URQRState extends State<URQR> {
       children: [
         Center(
           child: QrImage(
-            data: widget.frames[frame % widget.frames.length], version: -1,
+            data: frames[frame % frames.length],
+            version: -1,
             size: 400,
           ),
         ),
+        if (widget.urqr.values.length > 1)
+          SizedBox(
+            width: double.maxFinite,
+            child: Padding(
+              padding: const EdgeInsets.symmetric(horizontal: 16.0),
+              child: SizedBox(
+                width: double.maxFinite,
+                child: PrimaryButton(
+                  onPressed: next,
+                  text: nextLabel,
+                  color: Theme.of(context).colorScheme.primary,
+                  textColor: Theme.of(context).colorScheme.onPrimary,
+                ),
+              ),
+            ),
+          ),
+        if (FeatureFlag.hasDevOptions) ...{
+          TextButton(
+            onPressed: () { 
+              Clipboard.setData(ClipboardData(text: """Current frame (${frame % frames.length}): ${frames[frame % frames.length]},
+All frames:
+ - ${frames.join("\n - ")}"""));
+             },
+            child: Text(frames[frame % frames.length]),
+          ),
+        }
       ],
     );
   }

lib/src/screens/wallet_keys/wallet_keys_page.dart

@@ -82,7 +82,7 @@ class _WalletKeysPageBodyState extends State<WalletKeysPageBody>
     showLegacySeedTab = widget.walletKeysViewModel.legacySeedSplit.isNotEmpty;
     isLegacySeedOnly = widget.walletKeysViewModel.isLegacySeedOnly;
 
-    final totalTabs = 1 + (showKeyTab ? 1 : 0) + (showLegacySeedTab ? 1 : 0);
+    final totalTabs = (_hasSeeds ? 1 : 0) + (showKeyTab ? 1 : 0) + (showLegacySeedTab ? 1 : 0);
 
     _tabController = TabController(length: totalTabs, vsync: this);
   }
@@ -126,7 +126,7 @@ class _WalletKeysPageBodyState extends State<WalletKeysPageBody>
               dividerColor: Colors.transparent,
               padding: EdgeInsets.zero,
               tabs: [
-                Tab(text: S.of(context).widgets_seed, key: ValueKey('wallet_keys_page_seed')),
+                if (_hasSeeds) Tab(text: S.of(context).widgets_seed, key: ValueKey('wallet_keys_page_seed')),
                 if (showKeyTab) Tab(text: S.of(context).keys, key: ValueKey('wallet_keys_page_keys'),),
                 if (showLegacySeedTab) Tab(text: S.of(context).legacy, key: ValueKey('wallet_keys_page_seed_legacy')),
               ],
@@ -137,10 +137,11 @@ class _WalletKeysPageBodyState extends State<WalletKeysPageBody>
             child: TabBarView(
               controller: _tabController,
               children: [
-                Padding(
+                if (_hasSeeds)
-                  padding: const EdgeInsets.only(left: 22, right: 22),
+                  Padding(
-                  child: _buildSeedTab(context, false),
+                    padding: const EdgeInsets.only(left: 22, right: 22),
-                ),
+                    child: _buildSeedTab(context, false),
+                  ),
                 if (showKeyTab)
                   Padding(
                     padding: const EdgeInsets.only(left: 22, right: 22),

lib/view_model/dashboard/receive_option_view_model.dart

@@ -22,7 +22,7 @@ abstract class ReceiveOptionViewModelBase with Store {
     switch (walletType) {
       case WalletType.bitcoin:
         _options = [
-          ...bitcoin!.getBitcoinReceivePageOptions(),
+          ...bitcoin!.getBitcoinReceivePageOptions(_wallet),
           ...ReceivePageOptions.where((element) => element != ReceivePageOption.mainnet)
         ];
         break;

lib/view_model/restore/restore_wallet.dart

@@ -35,7 +35,7 @@ class RestoredWallet {
 
   factory RestoredWallet.fromKey(Map<String, dynamic> json) {
     try {
-    final codeParsed = jsonDecode(json['raw_qr'].toString());
+      final codeParsed = jsonDecode(json['raw_qr'].toString());
       if (codeParsed["version"] == 0) {
         json['address'] = codeParsed["primaryAddress"];
         json['view_key'] = codeParsed["privateViewKey"];
@@ -44,6 +44,7 @@ class RestoredWallet {
     } catch (e) {
       // fine, we don't care, it is only for monero anyway
     }
+    json['view_key'] ??= json['xpub'];
     final height = json['height'] as String?;
     return RestoredWallet(
       restoreMode: json['mode'] as WalletRestoreMode,
@@ -51,7 +52,7 @@ class RestoredWallet {
       address: json['address'] as String?,
       spendKey: json['spend_key'] as String?,
       viewKey: json['view_key'] as String?,
-      height: height != null ? int.tryParse(height)??0 : 0,
+      height: height != null ? int.tryParse(height) ?? 0 : 0,
       privateKey: json['private_key'] as String?,
     );
   }

lib/view_model/restore/wallet_restore_from_qr_code.dart

@@ -54,6 +54,8 @@ class WalletRestoreFromQRCode {
 
     final extracted = sortedKeys.firstWhereOrNull((key) => code.toLowerCase().contains(key));
 
+    if (code.startsWith("xpub")) return WalletType.bitcoin;
+
     if (extracted == null) {
       // Special case for view-only monero wallet
       try {
@@ -117,11 +119,15 @@ class WalletRestoreFromQRCode {
 
       formattedUri = seedPhrase != null
           ? '$walletType:?seed=$seedPhrase'
-          : throw Exception('Failed to determine valid seed phrase');
+          : code.startsWith('xpub') 
+            ? '$walletType:?xpub=$code' 
+            : throw Exception('Failed to determine valid seed phrase');
     } else {
       final index = code.indexOf(':');
       final query = code.substring(index + 1).replaceAll('?', '&');
-      formattedUri = '$walletType:?$query';
+      formattedUri = code.startsWith('xpub') 
+        ? '$walletType:?xpub=$code' 
+        :'$walletType:?$query';
     }
 
     final uri = Uri.parse(formattedUri);
@@ -158,6 +164,10 @@ class WalletRestoreFromQRCode {
       throw Exception('Unexpected restore mode: tx_payment_id is invalid');
     }
 
+    if (credentials.containsKey("xpub")) {
+      return WalletRestoreMode.keys;
+    }
+
     if (credentials['seed'] != null) {
       final seedValue = credentials['seed'] as String;
       final words = SeedValidator.getWordList(type: type, language: 'english');

lib/view_model/wallet_keys_view_model.dart

@@ -1,3 +1,4 @@
+import 'package:cake_wallet/bitcoin/bitcoin.dart';
 import 'package:cake_wallet/generated/i18n.dart';
 import 'package:cake_wallet/monero/monero.dart';
 import 'package:cake_wallet/src/screens/transaction_details/standart_list_item.dart';
@@ -162,18 +163,21 @@ abstract class WalletKeysViewModelBase with Store {
       case WalletType.bitcoin:
       case WalletType.litecoin:
       case WalletType.bitcoinCash:
+          final keys = bitcoin!.getWalletKeys(_appStore.wallet!);
+        
+          items.addAll([
+            if ((keys['wif']??'').isNotEmpty)
+              StandartListItem(title: "WIF", value: keys['wif']!),
+            if ((keys['privateKey']??'').isNotEmpty)
+              StandartListItem(title: S.current.private_key, value: keys['privateKey']!),
+            if (keys['publicKey'] != null)
+              StandartListItem(title: S.current.public_key, value: keys['publicKey']!),
+            if (keys['xpub'] != null)
+              StandartListItem(title: "xPub", value: keys['xpub']!),
+          ]);
+        break;
       case WalletType.none:
       case WalletType.haven:
-        //   final keys = bitcoin!.getWalletKeys(_appStore.wallet!);
-        //
-        //   items.addAll([
-        //     if (keys['wif'] != null)
-        //       StandartListItem(title: "WIF", value: keys['wif']!),
-        //     if (keys['privateKey'] != null)
-        //       StandartListItem(title: S.current.private_key, value: keys['privateKey']!),
-        //     if (keys['publicKey'] != null)
-        //       StandartListItem(title: S.current.public_key, value: keys['publicKey']!),
-        //   ]);
         break;
     }
 

lib/view_model/wallet_restore_view_model.dart

@@ -32,17 +32,7 @@ abstract class WalletRestoreViewModelBase extends WalletCreationVM with Store {
   WalletRestoreViewModelBase(AppStore appStore, WalletCreationService walletCreationService,
       Box<WalletInfo> walletInfoSource, SeedSettingsViewModel seedSettingsViewModel,
       {required WalletType type, this.restoredWallet})
-      : hasSeedLanguageSelector =
+      : isButtonEnabled = restoredWallet != null,
-            type == WalletType.monero || type == WalletType.haven || type == WalletType.wownero,
-        hasBlockchainHeightLanguageSelector =
-            type == WalletType.monero || type == WalletType.haven || type == WalletType.wownero,
-        hasRestoreFromPrivateKey = type == WalletType.ethereum ||
-            type == WalletType.polygon ||
-            type == WalletType.nano ||
-            type == WalletType.banano ||
-            type == WalletType.solana ||
-            type == WalletType.tron,
-        isButtonEnabled = false,
         hasPassphrase = false,
         mode = restoredWallet?.restoreMode ?? WalletRestoreMode.seed,
         super(appStore, walletInfoSource, walletCreationService, seedSettingsViewModel,
@@ -60,9 +50,9 @@ abstract class WalletRestoreViewModelBase extends WalletCreationVM with Store {
       case WalletType.ethereum:
       case WalletType.polygon:
       case WalletType.decred:
+      case WalletType.bitcoin:
         availableModes = [WalletRestoreMode.seed, WalletRestoreMode.keys];
         break;
-      case WalletType.bitcoin:
       case WalletType.litecoin:
       case WalletType.bitcoinCash:
       case WalletType.zano:
@@ -82,9 +72,34 @@ abstract class WalletRestoreViewModelBase extends WalletCreationVM with Store {
   static const decredSeedMnemonicLength = 15;
 
   late List<WalletRestoreMode> availableModes;
-  final bool hasSeedLanguageSelector;
+  late final bool hasSeedLanguageSelector = [
-  final bool hasBlockchainHeightLanguageSelector;
+    WalletType.monero,
-  final bool hasRestoreFromPrivateKey;
+    WalletType.haven,
+    WalletType.wownero
+  ].contains(type);
+
+  late final bool hasBlockchainHeightSelector = [
+    WalletType.monero,
+    WalletType.haven,
+    WalletType.wownero
+  ].contains(type);
+  
+  late final bool hasRestoreFromPrivateKey = [
+    WalletType.ethereum,
+    WalletType.polygon,
+    WalletType.nano,
+    WalletType.banano,
+    WalletType.solana,
+    WalletType.tron
+  ].contains(type);
+
+  late final bool onlyViewKeyRestore = [
+    WalletType.bitcoin,
+    WalletType.litecoin,
+    WalletType.bitcoinCash,
+    WalletType.decred
+  ].contains(type);
+
   final RestoredWallet? restoredWallet;
 
   @observable
@@ -198,6 +213,13 @@ abstract class WalletRestoreViewModelBase extends WalletCreationVM with Store {
       final address = options['address'] as String?;
 
       switch (type) {
+        case WalletType.bitcoin:
+          return bitcoin!.createBitcoinWalletFromKeys(
+            name: name,
+            password: password,
+            xpub: viewKey!,
+          );
+
         case WalletType.monero:
           return monero!.createMoneroRestoreWalletFromKeysCredentials(
             name: name,
@@ -276,8 +298,9 @@ abstract class WalletRestoreViewModelBase extends WalletCreationVM with Store {
       case WalletType.litecoin:
         String? mnemonic = credentials['seed'] as String?;
         String? passphrase = credentials['passphrase'] as String?;
+        if (mnemonic == null) break;
         return bitcoin!.getDerivationsFromMnemonic(
-          mnemonic: mnemonic!,
+          mnemonic: mnemonic,
           node: node,
           passphrase: passphrase,
         );

pubspec_base.yaml

@@ -130,6 +130,14 @@ dependencies:
       url: https://github.com/MrCyjaneK/flutter_daemon
       ref: c24ee99f2f3070ea02d8108bbdd7727d73f7e5f1
   flutter_local_notifications: ^19.0.0
+  ur:
+    git:
+      url: https://github.com/bukata-sa/bc-ur-dart
+      ref: 5738f70d0ec3d50977ac3dd01fed62939600238b
+  bbqrdart:
+    git:
+      url: https://github.com/mrcyjanek/bbqrdart
+      ref: b0f3f72911221bafed0ab77359fccd64bc79d524
 
 dev_dependencies:
   flutter_test:

scripts/linux/build_cake_release.sh

@@ -14,7 +14,7 @@ cd "$SCRIPT_DIR"
 BUILD_AMD64=false
 BUILD_ARM64=false
 APP_TYPE="cakewallet"
-DOCKER_IMAGE="ghcr.io/cake-tech/cake_wallet:debian12-flutter3.27.0-go1.24.1-ruststablenightly"
+DOCKER_IMAGE="ghcr.io/cake-tech/cake_wallet:debian12-flutter3.27.4-go1.24.1-ruststablenightly"
 
 # Parse arguments
 for arg in "$@"

scripts/windows/Dockerfile.windows

@@ -4,7 +4,7 @@
 
 FROM mcr.microsoft.com/windows/servercore:ltsc2022
 
-ENV FLUTTER_VERSION=3.27.0
+ENV FLUTTER_VERSION=3.27.4
 ENV GIT_VERSION=2.47.1
 ENV VS_INSTALLED_DIR="C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools"
 ENV PATH="C:\Users\ContainerAdministrator\.cargo\bin;C:\ProgramData\chocolatey\bin;C:\flutter\flutter\bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Windows\System32\OpenSSH\;C:\Users\ContainerAdministrator\AppData\Local\Microsoft\WindowsApps"

tool/configure.dart

@@ -163,6 +163,7 @@ abstract class Bitcoin {
     String? passphrase,
   });
   WalletCredentials createBitcoinRestoreWalletFromWIFCredentials({required String name, required String password, required String wif, WalletInfo? walletInfo});
+  WalletCredentials createBitcoinWalletFromKeys({required String name, required String password, required String xpub});
   WalletCredentials createBitcoinNewWalletCredentials({required String name, WalletInfo? walletInfo, String? password, String? passphrase, String? mnemonic});
   WalletCredentials createBitcoinHardwareWalletCredentials({required String name, required HardwareAccountData accountData, WalletInfo? walletInfo});
   List<String> getWordList();
@@ -206,7 +207,7 @@ abstract class Bitcoin {
   Map<DerivationType, List<DerivationInfo>> getElectrumDerivations();
   Future<void> setAddressType(Object wallet, dynamic option);
   ReceivePageOption getSelectedAddressType(Object wallet);
-  List<ReceivePageOption> getBitcoinReceivePageOptions();
+  List<ReceivePageOption> getBitcoinReceivePageOptions(Object wallet);
   List<ReceivePageOption> getLitecoinReceivePageOptions();
   BitcoinAddressType getBitcoinAddressType(ReceivePageOption option);
   bool isPayjoinAvailable(Object wallet);
@@ -244,6 +245,7 @@ abstract class Bitcoin {
   bool getMwebEnabled(Object wallet);
   String? getUnusedMwebAddress(Object wallet);
   String? getUnusedSegwitAddress(Object wallet);
+  Future<void> commitPsbtUR(Object wallet, List<String> urCodes);
 
   void updatePayjoinState(Object wallet, bool state);
   String getPayjoinEndpoint(Object wallet);