Add check_transaction_alone and scan transactions in mempool

src/main.rs

@@ -226,6 +226,13 @@ fn create_new_tx_message(transaction: Vec<u8>) -> Result<NewTxMessage> {
     }
 
     let partial_tweak = compute_partial_tweak_to_transaction(&tx)?;
+
+    let found = check_transaction_alone(&tx, &partial_tweak)?;
+
+    if found.len() > 0 {
+        debug!("Found {} modified outputs in {}", found.len(), tx.txid());
+    }
+
     Ok(NewTxMessage::new(
         transaction.to_lower_hex_string(),
         Some(partial_tweak.to_string()),

src/scan.rs

@@ -82,6 +82,17 @@ fn get_script_to_secret_map(
     Ok(res)
 }
 
+pub fn check_transaction_alone(tx: &Transaction, tweak_data: &PublicKey) -> Result<HashMap<OutPoint, OwnedOutput>> {
+    let sp_wallet = WALLET.get().ok_or(Error::msg("Wallet not initialized"))?;
+    let updates = sp_wallet.get_wallet()?.update_wallet_with_transaction(tx, 0, *tweak_data)?;
+
+    if updates.len() > 0 {
+        sp_wallet.save()?;
+    }
+
+    Ok(updates)
+}
+
 fn check_block(
     blkfilter: BlockFilter,
     blkhash: BlockHash,