fix(hardware-ledger): fix ledger hardware wallet mapping when there are reference inputs and no collateral

Author: AngelCastilloB

packages/hardware-ledger/src/LedgerKeyAgent.ts

@@ -703,6 +703,7 @@ export class LedgerKeyAgent extends KeyAgentBase {
    * Ledger has certain limitations due to which it cannot sign arbitrary combination of all transaction features.
    * The mode specifies which use-case the user want to use and triggers additional validation on `tx` field.
    */
+  // eslint-disable-next-line complexity
   static getSigningMode(tx: Transaction): TransactionSigningMode {
     if (tx.certificates) {
       for (const cert of tx.certificates) {
@@ -726,7 +727,11 @@ export class LedgerKeyAgent extends KeyAgentBase {
      * VotingProcedures: We are currently supporting only keyHash and scriptHash voter types in voting procedures.
      * To sign tx with keyHash and scriptHash voter type we have to use PLUTUS_TRANSACTION signing mode
      */
-    if (tx.collateralInputs || LedgerKeyAgent.isKeyHashOrScriptHashVoter(tx.votingProcedures)) {
+    if (
+      tx.collateralInputs ||
+      LedgerKeyAgent.isKeyHashOrScriptHashVoter(tx.votingProcedures) ||
+      (tx.referenceInputs && tx.referenceInputs.length > 0)
+    ) {
       return TransactionSigningMode.PLUTUS_TRANSACTION;
     }
 

packages/hardware-ledger/test/LedgerKeyAgent.test.ts

@@ -313,6 +313,49 @@ describe('LedgerKeyAgent', () => {
       expect(LedgerKeyAgent.getSigningMode(tx)).toEqual(Ledger.TransactionSigningMode.PLUTUS_TRANSACTION);
     });
 
+    it('can detect plutus transaction signing mode if there is a reference input', async () => {
+      const tx: Ledger.Transaction = {
+        fee: 10n,
+        includeNetworkId: false,
+        inputs: [
+          {
+            outputIndex: 0,
+            path: [util.harden(CardanoKeyConst.PURPOSE), util.harden(CardanoKeyConst.COIN_TYPE), util.harden(0), 1, 0],
+            txHashHex: '0f3abbc8fc19c2e61bab6059bf8a466e6e754833a08a62a6c56fe0e78f19d9d5'
+          }
+        ],
+        network: {
+          networkId: Ledger.Networks.Testnet.networkId,
+          protocolMagic: 999
+        },
+        outputs: [
+          {
+            amount: 10n,
+            datumHashHex: '0f3abbc8fc19c2e61bab6059bf8a466e6e754833a08a62a6c56fe0e78f19d9d5',
+            destination: {
+              params: {
+                addressHex:
+                  '009493315cd92eb5d8c4304e67b7e16ae36d61d34502694657811a2c8e32c728d3861e164cab28cb8f006448139c8f1740ffb8e7aa9e5232dc'
+              },
+              type: Ledger.TxOutputDestinationType.THIRD_PARTY
+            },
+            format: Ledger.TxOutputFormat.ARRAY_LEGACY
+          }
+        ],
+        referenceInputs: [
+          {
+            outputIndex: 0,
+            path: [util.harden(CardanoKeyConst.PURPOSE), util.harden(CardanoKeyConst.COIN_TYPE), util.harden(0), 1, 0],
+            txHashHex: '0f3abbc8fc19c2e61bab6059bf8a466e6e754833a08a62a6c56fe0e78f19d9d5'
+          }
+        ],
+        ttl: 1000,
+        validityIntervalStart: 100
+      };
+
+      expect(LedgerKeyAgent.getSigningMode(tx)).toEqual(Ledger.TransactionSigningMode.PLUTUS_TRANSACTION);
+    });
+
     it('can detect multisig transaction signing mode', async () => {
       const tx: Ledger.Transaction = {
         certificates: [