feat: tron Ledger Transaction Data disabled error handling

packages/hdwallet-ledger/src/tron.ts

@@ -12,9 +12,47 @@ export async function tronGetAddress(transport: LedgerTransport, msg: core.TronG
   return res.payload.address;
 }
 
+/**
+ * Detects if a TRON transaction contains a memo in the raw_data.data field
+ * by checking for protobuf field 10 (wire type 2 for bytes) = 0x52
+ */
+function transactionHasMemo(rawDataHex: string): boolean {
+  try {
+    const buffer = Buffer.from(rawDataHex, "hex");
+
+    // Search for field 10 with wire type 2 (bytes)
+    // Field number 10, wire type 2 (length-delimited) = (10 << 3) | 2 = 0x52
+    for (let i = 0; i < buffer.length - 1; i++) {
+      if (buffer[i] === 0x52) {
+        return true;
+      }
+    }
+
+    return false;
+  } catch (err) {
+    return false;
+  }
+}
+
 export async function tronSignTx(transport: LedgerTransport, msg: core.TronSignTx): Promise<core.TronSignedTx> {
   const bip32path = core.addressNListToBIP32(msg.addressNList);
 
+  // Check if transaction has memo and validate Ledger app configuration
+  const hasMemo = transactionHasMemo(msg.rawDataHex);
+
+  if (hasMemo) {
+    const configRes = await transport.call("Tron", "getAppConfiguration");
+    handleError(configRes, transport, "Unable to get Tron app configuration from device.");
+
+    const { allowData } = configRes.payload;
+
+    if (!allowData) {
+      const error = new Error("Please enable Transactions Data in your Ledger TRON app settings and try again.");
+      (error as any).name = "LedgerTronAllowDataDisabled";
+      throw error;
+    }
+  }
+
   const res = await transport.call("Tron", "signTransaction", bip32path, msg.rawDataHex, []);
   handleError(res, transport, "Unable to sign Tron transaction.");