GetInfoResponse: add fingerprint (#532)

* GetInfoResponse: add fingerprint

* Re-generate dart ffi with `just ffigen`

* Re-generate dart ffi with `just gen`

lib/bindings/langs/flutter/breez_sdk_liquid/include/breez_sdk_liquid.h

@@ -605,6 +605,7 @@ typedef struct wire_cst_get_info_response {
   uint64_t balance_sat;
   uint64_t pending_send_sat;
   uint64_t pending_receive_sat;
+  struct wire_cst_list_prim_u_8_strict *fingerprint;
   struct wire_cst_list_prim_u_8_strict *pubkey;
 } wire_cst_get_info_response;
 

lib/bindings/src/breez_sdk_liquid.udl

@@ -328,6 +328,7 @@ dictionary GetInfoResponse {
     u64 balance_sat;
     u64 pending_send_sat;
     u64 pending_receive_sat;
+    string fingerprint;
     string pubkey;
 };
 

lib/core/src/frb_generated.rs

@@ -2362,11 +2362,13 @@ impl SseDecode for crate::model::GetInfoResponse {
         let mut var_balanceSat = <u64>::sse_decode(deserializer);
         let mut var_pendingSendSat = <u64>::sse_decode(deserializer);
         let mut var_pendingReceiveSat = <u64>::sse_decode(deserializer);
+        let mut var_fingerprint = <String>::sse_decode(deserializer);
         let mut var_pubkey = <String>::sse_decode(deserializer);
         return crate::model::GetInfoResponse {
             balance_sat: var_balanceSat,
             pending_send_sat: var_pendingSendSat,
             pending_receive_sat: var_pendingReceiveSat,
+            fingerprint: var_fingerprint,
             pubkey: var_pubkey,
         };
     }
@@ -4400,6 +4402,7 @@ impl flutter_rust_bridge::IntoDart for crate::model::GetInfoResponse {
             self.balance_sat.into_into_dart().into_dart(),
             self.pending_send_sat.into_into_dart().into_dart(),
             self.pending_receive_sat.into_into_dart().into_dart(),
+            self.fingerprint.into_into_dart().into_dart(),
             self.pubkey.into_into_dart().into_dart(),
         ]
         .into_dart()
@@ -6334,6 +6337,7 @@ impl SseEncode for crate::model::GetInfoResponse {
         <u64>::sse_encode(self.balance_sat, serializer);
         <u64>::sse_encode(self.pending_send_sat, serializer);
         <u64>::sse_encode(self.pending_receive_sat, serializer);
+        <String>::sse_encode(self.fingerprint, serializer);
         <String>::sse_encode(self.pubkey, serializer);
     }
 }
@@ -8256,6 +8260,7 @@ mod io {
                 balance_sat: self.balance_sat.cst_decode(),
                 pending_send_sat: self.pending_send_sat.cst_decode(),
                 pending_receive_sat: self.pending_receive_sat.cst_decode(),
+                fingerprint: self.fingerprint.cst_decode(),
                 pubkey: self.pubkey.cst_decode(),
             }
         }
@@ -9628,6 +9633,7 @@ mod io {
                 balance_sat: Default::default(),
                 pending_send_sat: Default::default(),
                 pending_receive_sat: Default::default(),
+                fingerprint: core::ptr::null_mut(),
                 pubkey: core::ptr::null_mut(),
             }
         }
@@ -11495,6 +11501,7 @@ mod io {
         balance_sat: u64,
         pending_send_sat: u64,
         pending_receive_sat: u64,
+        fingerprint: *mut wire_cst_list_prim_u_8_strict,
         pubkey: *mut wire_cst_list_prim_u_8_strict,
     }
     #[repr(C)]

lib/core/src/model.rs

@@ -397,6 +397,9 @@ pub struct GetInfoResponse {
     pub pending_send_sat: u64,
     /// Incoming amount that is pending from ongoing Receive swaps
     pub pending_receive_sat: u64,
+    /// The wallet's fingerprint. It is used to build the working directory in [Config::get_wallet_working_dir].
+    pub fingerprint: String,
+    /// The wallet's pubkey. Used to verify signed messages.
     pub pubkey: String,
 }
 

lib/core/src/sdk.rs

@@ -526,6 +526,7 @@ impl LiquidSdk {
             balance_sat: confirmed_received_sat - confirmed_sent_sat - pending_send_sat,
             pending_send_sat,
             pending_receive_sat,
+            fingerprint: self.onchain_wallet.fingerprint(),
             pubkey: self.onchain_wallet.pubkey(),
         })
     }

lib/core/src/test_utils/wallet.rs

@@ -57,6 +57,10 @@ impl OnchainWallet for MockWallet {
         unimplemented!()
     }
 
+    fn fingerprint(&self) -> String {
+        unimplemented!()
+    }
+
     fn pubkey(&self) -> String {
         unimplemented!()
     }

lib/core/src/wallet.rs

@@ -8,7 +8,7 @@ use lwk_common::Signer;
 use lwk_common::{singlesig_desc, Singlesig};
 use lwk_signer::{AnySigner, SwSigner};
 use lwk_wollet::{
-    elements::{Address, Transaction},
+    elements::{hex::ToHex, Address, Transaction},
     ElectrumClient, ElectrumUrl, ElementsNetwork, FsPersister, Tip, WalletTx, Wollet,
     WolletDescriptor,
 };
@@ -61,6 +61,7 @@ pub trait OnchainWallet: Send + Sync {
 
     /// Get the public key of the wallet
     fn pubkey(&self) -> String;
+    fn fingerprint(&self) -> String;
 
     fn derive_bip32_key(&self, path: Vec<ChildNumber>) -> Result<ExtendedPrivKey, PaymentError>;
 
@@ -262,4 +263,8 @@ impl OnchainWallet for LiquidOnchainWallet {
         let pk = PublicKey::from_str(pubkey)?;
         Ok(verify(message.as_bytes(), signature, &pk))
     }
+
+    fn fingerprint(&self) -> String {
+        self.lwk_signer.fingerprint().to_hex()
+    }
 }

packages/dart/lib/src/frb_generated.dart

@@ -1708,12 +1708,13 @@ class RustLibApiImpl extends RustLibApiImplPlatform implements RustLibApi {
   GetInfoResponse dco_decode_get_info_response(dynamic raw) {
     // Codec=Dco (DartCObject based), see doc to use other codecs
     final arr = raw as List<dynamic>;
-    if (arr.length != 4) throw Exception('unexpected arr length: expect 4 but see ${arr.length}');
+    if (arr.length != 5) throw Exception('unexpected arr length: expect 5 but see ${arr.length}');
     return GetInfoResponse(
       balanceSat: dco_decode_u_64(arr[0]),
       pendingSendSat: dco_decode_u_64(arr[1]),
       pendingReceiveSat: dco_decode_u_64(arr[2]),
-      pubkey: dco_decode_String(arr[3]),
+      fingerprint: dco_decode_String(arr[3]),
+      pubkey: dco_decode_String(arr[4]),
     );
   }
 
@@ -3486,11 +3487,13 @@ class RustLibApiImpl extends RustLibApiImplPlatform implements RustLibApi {
     var var_balanceSat = sse_decode_u_64(deserializer);
     var var_pendingSendSat = sse_decode_u_64(deserializer);
     var var_pendingReceiveSat = sse_decode_u_64(deserializer);
+    var var_fingerprint = sse_decode_String(deserializer);
     var var_pubkey = sse_decode_String(deserializer);
     return GetInfoResponse(
         balanceSat: var_balanceSat,
         pendingSendSat: var_pendingSendSat,
         pendingReceiveSat: var_pendingReceiveSat,
+        fingerprint: var_fingerprint,
         pubkey: var_pubkey);
   }
 
@@ -5362,6 +5365,7 @@ class RustLibApiImpl extends RustLibApiImplPlatform implements RustLibApi {
     sse_encode_u_64(self.balanceSat, serializer);
     sse_encode_u_64(self.pendingSendSat, serializer);
     sse_encode_u_64(self.pendingReceiveSat, serializer);
+    sse_encode_String(self.fingerprint, serializer);
     sse_encode_String(self.pubkey, serializer);
   }
 

packages/dart/lib/src/frb_generated.io.dart

@@ -2029,6 +2029,7 @@ abstract class RustLibApiImplPlatform extends BaseApiImpl<RustLibWire> {
     wireObj.balance_sat = cst_encode_u_64(apiObj.balanceSat);
     wireObj.pending_send_sat = cst_encode_u_64(apiObj.pendingSendSat);
     wireObj.pending_receive_sat = cst_encode_u_64(apiObj.pendingReceiveSat);
+    wireObj.fingerprint = cst_encode_String(apiObj.fingerprint);
     wireObj.pubkey = cst_encode_String(apiObj.pubkey);
   }
 
@@ -5792,6 +5793,8 @@ final class wire_cst_get_info_response extends ffi.Struct {
   @ffi.Uint64()
   external int pending_receive_sat;
 
+  external ffi.Pointer<wire_cst_list_prim_u_8_strict> fingerprint;
+
   external ffi.Pointer<wire_cst_list_prim_u_8_strict> pubkey;
 }
 

packages/dart/lib/src/model.dart

@@ -210,18 +210,28 @@ class GetInfoResponse {
 
   /// Incoming amount that is pending from ongoing Receive swaps
   final BigInt pendingReceiveSat;
+
+  /// The wallet's fingerprint. It is used to build the working directory in [Config::get_wallet_working_dir].
+  final String fingerprint;
+
+  /// The wallet's pubkey. Used to verify signed messages.
   final String pubkey;
 
   const GetInfoResponse({
     required this.balanceSat,
     required this.pendingSendSat,
     required this.pendingReceiveSat,
+    required this.fingerprint,
     required this.pubkey,
   });
 
   @override
   int get hashCode =>
-      balanceSat.hashCode ^ pendingSendSat.hashCode ^ pendingReceiveSat.hashCode ^ pubkey.hashCode;
+      balanceSat.hashCode ^
+      pendingSendSat.hashCode ^
+      pendingReceiveSat.hashCode ^
+      fingerprint.hashCode ^
+      pubkey.hashCode;
 
   @override
   bool operator ==(Object other) =>
@@ -231,6 +241,7 @@ class GetInfoResponse {
           balanceSat == other.balanceSat &&
           pendingSendSat == other.pendingSendSat &&
           pendingReceiveSat == other.pendingReceiveSat &&
+          fingerprint == other.fingerprint &&
           pubkey == other.pubkey;
 }
 

packages/flutter/lib/flutter_breez_liquid_bindings_generated.dart

@@ -4480,6 +4480,8 @@ final class wire_cst_get_info_response extends ffi.Struct {
   @ffi.Uint64()
   external int pending_receive_sat;
 
+  external ffi.Pointer<wire_cst_list_prim_u_8_strict> fingerprint;
+
   external ffi.Pointer<wire_cst_list_prim_u_8_strict> pubkey;
 }
 

packages/react-native/android/src/main/java/com/breezsdkliquid/BreezSDKLiquidMapper.kt

@@ -426,6 +426,7 @@ fun asGetInfoResponse(getInfoResponse: ReadableMap): GetInfoResponse? {
                 "balanceSat",
                 "pendingSendSat",
                 "pendingReceiveSat",
+                "fingerprint",
                 "pubkey",
             ),
         )
@@ -435,15 +436,17 @@ fun asGetInfoResponse(getInfoResponse: ReadableMap): GetInfoResponse? {
     val balanceSat = getInfoResponse.getDouble("balanceSat").toULong()
     val pendingSendSat = getInfoResponse.getDouble("pendingSendSat").toULong()
     val pendingReceiveSat = getInfoResponse.getDouble("pendingReceiveSat").toULong()
+    val fingerprint = getInfoResponse.getString("fingerprint")!!
     val pubkey = getInfoResponse.getString("pubkey")!!
-    return GetInfoResponse(balanceSat, pendingSendSat, pendingReceiveSat, pubkey)
+    return GetInfoResponse(balanceSat, pendingSendSat, pendingReceiveSat, fingerprint, pubkey)
 }
 
 fun readableMapOf(getInfoResponse: GetInfoResponse): ReadableMap =
     readableMapOf(
         "balanceSat" to getInfoResponse.balanceSat,
         "pendingSendSat" to getInfoResponse.pendingSendSat,
         "pendingReceiveSat" to getInfoResponse.pendingReceiveSat,
+        "fingerprint" to getInfoResponse.fingerprint,
         "pubkey" to getInfoResponse.pubkey,
     )
 

packages/react-native/ios/BreezSDKLiquidMapper.swift

@@ -505,18 +505,22 @@ enum BreezSDKLiquidMapper {
         guard let pendingReceiveSat = getInfoResponse["pendingReceiveSat"] as? UInt64 else {
             throw SdkError.Generic(message: errMissingMandatoryField(fieldName: "pendingReceiveSat", typeName: "GetInfoResponse"))
         }
+        guard let fingerprint = getInfoResponse["fingerprint"] as? String else {
+            throw SdkError.Generic(message: errMissingMandatoryField(fieldName: "fingerprint", typeName: "GetInfoResponse"))
+        }
         guard let pubkey = getInfoResponse["pubkey"] as? String else {
             throw SdkError.Generic(message: errMissingMandatoryField(fieldName: "pubkey", typeName: "GetInfoResponse"))
         }
 
-        return GetInfoResponse(balanceSat: balanceSat, pendingSendSat: pendingSendSat, pendingReceiveSat: pendingReceiveSat, pubkey: pubkey)
+        return GetInfoResponse(balanceSat: balanceSat, pendingSendSat: pendingSendSat, pendingReceiveSat: pendingReceiveSat, fingerprint: fingerprint, pubkey: pubkey)
     }
 
     static func dictionaryOf(getInfoResponse: GetInfoResponse) -> [String: Any?] {
         return [
             "balanceSat": getInfoResponse.balanceSat,
             "pendingSendSat": getInfoResponse.pendingSendSat,
             "pendingReceiveSat": getInfoResponse.pendingReceiveSat,
+            "fingerprint": getInfoResponse.fingerprint,
             "pubkey": getInfoResponse.pubkey,
         ]
     }

packages/react-native/src/index.ts

@@ -93,6 +93,7 @@ export interface GetInfoResponse {
     balanceSat: number
     pendingSendSat: number
     pendingReceiveSat: number
+    fingerprint: string
     pubkey: string
 }