support getXmrSeed()

core/src/main/java/bisq/core/api/CoreApi.java

@@ -268,6 +268,10 @@ public class CoreApi {
     public BalancesInfo getBalances(String currencyCode) {
         return walletsService.getBalances(currencyCode);
     }
+    
+    public String getXmrSeed() {
+        return walletsService.getXmrSeed();
+    }
 
     public String getNewDepositAddress() {
         return walletsService.getNewDepositAddress();

core/src/main/java/bisq/core/api/CoreWalletsService.java

@@ -160,6 +160,10 @@ class CoreWalletsService {
                 return new BalancesInfo(getBtcBalances(), getXmrBalances());
         }
     }
+    
+    String getXmrSeed() {
+        return xmrWalletService.getWallet().getMnemonic();
+    }
 
     String getNewDepositAddress() {
         accountService.checkAccountOpen();

daemon/src/main/java/bisq/daemon/grpc/GrpcWalletsService.java

@@ -40,6 +40,8 @@ import bisq.proto.grpc.GetTransactionReply;
 import bisq.proto.grpc.GetTransactionRequest;
 import bisq.proto.grpc.GetTxFeeRateReply;
 import bisq.proto.grpc.GetTxFeeRateRequest;
+import bisq.proto.grpc.GetXmrSeedReply;
+import bisq.proto.grpc.GetXmrSeedRequest;
 import bisq.proto.grpc.LockWalletReply;
 import bisq.proto.grpc.LockWalletRequest;
 import bisq.proto.grpc.RemoveWalletPasswordReply;
@@ -117,6 +119,20 @@ class GrpcWalletsService extends WalletsImplBase {
         });
     }
 
+    @Override
+    public void getXmrSeed(GetXmrSeedRequest req,
+                                    StreamObserver<GetXmrSeedReply> responseObserver) {
+        try {
+            var reply = GetXmrSeedReply.newBuilder()
+                    .setSeed(coreApi.getXmrSeed())
+                    .build();
+            responseObserver.onNext(reply);
+            responseObserver.onCompleted();
+        } catch (Throwable cause) {
+            exceptionHandler.handleException(log, cause, responseObserver);
+        }
+    }
+
     @Override
     public void getNewDepositAddress(GetNewDepositAddressRequest req,
                                     StreamObserver<GetNewDepositAddressReply> responseObserver) {

proto/src/main/proto/grpc.proto

@@ -856,6 +856,8 @@ message TxInfo {
 service Wallets {
     rpc GetBalances (GetBalancesRequest) returns (GetBalancesReply) {
     }
+    rpc GetXmrSeed (GetXmrSeedRequest) returns (GetXmrSeedReply) {
+    }
     rpc GetNewDepositAddress (GetNewDepositAddressRequest) returns (GetNewDepositAddressReply) {
     }
     rpc GetXmrTxs (GetXmrTxsRequest) returns (GetXmrTxsReply) {
@@ -896,6 +898,13 @@ message GetBalancesReply {
     BalancesInfo balances = 1;
 }
 
+message GetXmrSeedRequest {
+}
+
+message GetXmrSeedReply {
+    string seed = 1;
+}
+
 message GetNewDepositAddressRequest {
 }