Updated on 2026-08-14
This commit is contained in:
Tangem
parent
357cef6273
commit
857913f36a
7 changed files with 163 additions and 173 deletions
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@ -6,6 +6,7 @@ import android.util.Log;
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import com.tangem.data.network.ServerApiInsight;
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import com.tangem.data.network.model.InsightResponse;
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import com.tangem.data.network.model.InsightUtxo;
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import com.tangem.tangem_card.data.TangemCard;
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import com.tangem.tangem_card.reader.CardProtocol;
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import com.tangem.tangem_card.tasks.SignTask;
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@ -27,7 +28,6 @@ import com.tangem.wallet.btc.BtcEngine;
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import java.io.ByteArrayOutputStream;
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import java.math.BigDecimal;
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import java.math.BigInteger;
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import java.math.RoundingMode;
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import java.nio.ByteBuffer;
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import java.security.NoSuchAlgorithmException;
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import java.security.NoSuchProviderException;
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@ -47,7 +47,7 @@ public class DucatusEngine extends BtcEngine {
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} else if (context.getCoinData() instanceof BtcData) {
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coinData = (BtcData) context.getCoinData();
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} else {
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throw new Exception("Invalid type of Blockchain data for LtcEngine");
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throw new Exception("Invalid type of Blockchain data for DucatusEngine");
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}
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}
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@ -82,7 +82,7 @@ public class DucatusEngine extends BtcEngine {
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@Override
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public String getBalanceCurrency() {
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return "LTC";
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return "DUC";
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}
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@Override
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@ -117,7 +117,7 @@ public class DucatusEngine extends BtcEngine {
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@Override
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public String getFeeCurrency() {
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return "LTC";
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return "DUC";
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}
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@Override
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@ -167,16 +167,12 @@ public class DucatusEngine extends BtcEngine {
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@Override
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public Uri getWalletExplorerUri() {
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return Uri.parse("https://live.blockcypher.com/ltc/address/" + ctx.getCoinData().getWallet());
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return Uri.parse("https://insight.ducatus.io/insight/address/" + ctx.getCoinData().getWallet());
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}
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@Override
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public Uri getShareWalletUri() {
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if (ctx.getCard().getDenomination() != null) {
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return Uri.parse("litecoin:" + ctx.getCoinData().getWallet() + "?amount=" + convertToAmount(convertToInternalAmount(ctx.getCard().getDenomination())).toValueString(8));
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} else {
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return Uri.parse("litecoin:" + ctx.getCoinData().getWallet());
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}
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return Uri.parse(ctx.getCoinData().getWallet());
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}
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@Override
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@ -316,7 +312,7 @@ public class DucatusEngine extends BtcEngine {
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@Override
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public String calculateAddress(byte[] pkUncompressed) throws NoSuchProviderException, NoSuchAlgorithmException {
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byte netSelectionByte = (byte) 0x30;
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byte netSelectionByte = (byte) 0x31;
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byte hash1[] = Util.calculateSHA256(pkUncompressed);
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byte hash2[] = Util.calculateRIPEMD160(hash1);
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@ -385,18 +381,22 @@ public class DucatusEngine extends BtcEngine {
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@Override
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public SignTask.TransactionToSign constructTransaction(Amount amountValue, Amount feeValue, boolean IncFee, String targetAddress) throws Exception {
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final ArrayList<UnspentOutputInfo> unspentOutputs;
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ArrayList<UnspentOutputInfo> unspentOutputs = new ArrayList<>();
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checkBlockchainDataExists();
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String myAddress = ctx.getCoinData().getWallet();
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byte[] pbKey = ctx.getCard().getWalletPublicKey();
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// Build script for our address
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List<BtcData.UnspentTransaction> rawTxList = coinData.getUnspentTransactions();
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byte[] outputScriptWeAreAbleToSpend = Transaction.Script.buildOutput(myAddress).bytes;
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// // Build script for our address
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// List<BtcData.UnspentTransaction> rawTxList = coinData.getUnspentTransactions();
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// byte[] outputScriptWeAreAbleToSpend = Transaction.Script.buildOutput(myAddress).bytes;
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//
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// // Collect unspent
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// unspentOutputs = BTCUtils.getOutputs(rawTxList, outputScriptWeAreAbleToSpend);
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// Collect unspent
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unspentOutputs = BTCUtils.getOutputs(rawTxList, outputScriptWeAreAbleToSpend);
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for (BtcData.UnspentTransaction utxo : coinData.getUnspentTransactions()) {
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unspentOutputs.add(new UnspentOutputInfo(BTCUtils.fromHex(utxo.txID), new Transaction.Script(BTCUtils.fromHex(utxo.script)), utxo.amount, utxo.outputN, -1, utxo.txID, null));
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}
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long fullAmount = 0;
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for (int i = 0; i < unspentOutputs.size(); ++i) {
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@ -412,8 +412,8 @@ public class DucatusEngine extends BtcEngine {
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change = change - fees;
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}
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final long amountFinal=amount;
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final long changeFinal=change;
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final long amountFinal = amount;
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final long changeFinal = change;
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if (amount + fees > fullAmount) {
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throw new CardProtocol.TangemException_WrongAmount(String.format("Balance (%d) < change (%d) + amount (%d)", fullAmount, change, amount));
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@ -421,7 +421,7 @@ public class DucatusEngine extends BtcEngine {
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final byte[][] txForSign = new byte[unspentOutputs.size()][];
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final byte[][] bodyDoubleHash = new byte[unspentOutputs.size()][];
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final byte[][] bodyHash= new byte[unspentOutputs.size()][];
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final byte[][] bodyHash = new byte[unspentOutputs.size()][];
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for (int i = 0; i < unspentOutputs.size(); ++i) {
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txForSign[i] = BTCUtils.buildTXForSign(myAddress, targetAddress, myAddress, unspentOutputs, i, amount, change);
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@ -433,13 +433,14 @@ public class DucatusEngine extends BtcEngine {
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@Override
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public boolean isSigningMethodSupported(TangemCard.SigningMethod signingMethod) {
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return signingMethod==TangemCard.SigningMethod.Sign_Hash || signingMethod==TangemCard.SigningMethod.Sign_Raw;
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return signingMethod == TangemCard.SigningMethod.Sign_Hash || signingMethod == TangemCard.SigningMethod.Sign_Raw;
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}
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@Override
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public byte[][] getHashesToSign() throws Exception {
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byte[][] dataForSign=new byte[unspentOutputs.size()][];
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if (txForSign.length > 10) throw new Exception("To much hashes in one transaction!");
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byte[][] dataForSign = new byte[unspentOutputs.size()][];
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if (txForSign.length > 10)
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throw new Exception("To much hashes in one transaction!");
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for (int i = 0; i < unspentOutputs.size(); ++i) {
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dataForSign[i] = bodyDoubleHash[i];
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}
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@ -478,7 +479,7 @@ public class DucatusEngine extends BtcEngine {
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unspentOutputs.get(i).scriptForBuild = DerEncodingUtil.packSignDer(r, s, pbKey);
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}
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byte[] txForSend=BTCUtils.buildTXForSend(targetAddress, myAddress, unspentOutputs, amountFinal, changeFinal);
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byte[] txForSend = BTCUtils.buildTXForSend(targetAddress, myAddress, unspentOutputs, amountFinal, changeFinal);
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notifyOnNeedSendTransaction(txForSend);
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return txForSend;
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}
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@ -492,39 +493,20 @@ public class DucatusEngine extends BtcEngine {
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ServerApiInsight.ResponseListener responseListener = new ServerApiInsight.ResponseListener() {
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@Override
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public void onSuccess(String method, InsightResponse insightResponse) {
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switch (method) {
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case ServerApiInsight.INSIGHT_ADDRESS: {
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try {
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String walletAddress = insightResponse.getAddrStr();
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if (!walletAddress.equals(coinData.getWallet())) {
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// todo - check
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throw new Exception("Invalid wallet address in answer!");
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}
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coinData.setBalanceReceived(true);
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coinData.setBalanceConfirmed(insightResponse.getBalanceSat());
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coinData.setBalanceUnconfirmed(insightResponse.getUnconfirmedBalanceSat());
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coinData.setValidationNodeDescription(ServerApiInsight.lastNode);
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}
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catch (Exception e) {
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e.printStackTrace();
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Log.e(TAG, "FAIL INSIGHT_ADDRESS Exception");
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}
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}
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break;
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case ServerApiInsight.INSIGHT_TRANSACTION: {
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try {
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String raw = insightResponse.getRawtx();
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String txHash = new String(BTCUtils.reverse(CryptoUtil.doubleSha256(BTCUtils.fromHex(raw)))); //TODO: check
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for (BtcData.UnspentTransaction tx : coinData.getUnspentTransactions()) {
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if (tx.txID.equals(txHash))
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tx.script = raw;
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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try {
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String walletAddress = insightResponse.getAddrStr();
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if (!walletAddress.equals(coinData.getWallet())) {
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// todo - check
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throw new Exception("Invalid wallet address in answer!");
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}
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break;
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coinData.setBalanceReceived(true);
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coinData.setBalanceConfirmed(insightResponse.getBalanceSat());
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coinData.setBalanceUnconfirmed(insightResponse.getUnconfirmedBalanceSat());
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coinData.setValidationNodeDescription(ServerApiInsight.lastNode);
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} catch (Exception e) {
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e.printStackTrace();
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Log.e(TAG, "FAIL INSIGHT_ADDRESS Exception");
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}
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if (serverApiInsight.isRequestsSequenceCompleted()) {
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@ -534,30 +516,27 @@ public class DucatusEngine extends BtcEngine {
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}
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}
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public void onSuccess(String method, List<InsightResponse> utxoList) {
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// case ServerApiInsight.INSIGHT_UNSPENT_OUTPUTS: TODO: check method
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try {
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coinData.getUnspentTransactions().clear();
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for (InsightResponse utxo : utxoList) {
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BtcData.UnspentTransaction trUnspent = new BtcData.UnspentTransaction();
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trUnspent.txID = utxo.getTxid();
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trUnspent.amount = utxo.getSatoshis();
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trUnspent.outputN = utxo.getHeight();
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coinData.getUnspentTransactions().add(trUnspent);
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}
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for (InsightResponse utxo : utxoList) {
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//if (height != -1) { TODO: check
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if (blockchainRequestsCallbacks.allowAdvance()) {
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serverApiInsight.requestData(ServerApiInsight.INSIGHT_TRANSACTION, "", utxo.getTxid());
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} else {
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ctx.setError("Terminated by user");
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}
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}
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} catch (Exception e) {
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e.printStackTrace();
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public void onSuccess(String method, List<InsightUtxo> utxoList) {
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// case ServerApiInsight.INSIGHT_UNSPENT_OUTPUTS: TODO: check method
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try {
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coinData.getUnspentTransactions().clear();
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for (InsightUtxo utxo : utxoList) {
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BtcData.UnspentTransaction trUnspent = new BtcData.UnspentTransaction();
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trUnspent.txID = utxo.getTxid();
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trUnspent.amount = utxo.getSatoshis();
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trUnspent.outputN = utxo.getVout();
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trUnspent.script = utxo.getScriptPubKey();
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coinData.getUnspentTransactions().add(trUnspent);
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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if (serverApiInsight.isRequestsSequenceCompleted()) {
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blockchainRequestsCallbacks.onComplete(!ctx.hasError());
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} else {
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blockchainRequestsCallbacks.onProgress();
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}
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}
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@Override
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@ -581,65 +560,71 @@ public class DucatusEngine extends BtcEngine {
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public void requestFee(BlockchainRequestsCallbacks blockchainRequestsCallbacks, String targetAddress, Amount amount) throws Exception {
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final int calcSize = calculateEstimatedTransactionSize(targetAddress, amount.toValueString());
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Log.e(TAG, String.format("Estimated tx size %d", calcSize));
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coinData.minFee=null;
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coinData.maxFee=null;
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coinData.normalFee=null;
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final ServerApiInsight serverApiInsight = new ServerApiInsight();
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final ServerApiInsight.ResponseListener responseListener = new ServerApiInsight.ResponseListener() {
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@Override
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public void onSuccess(String method, InsightResponse insightResponse) {
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if ( method.equals(ServerApiInsight.INSIGHT_FEE)) {
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try {
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BigDecimal minFee = new BigDecimal(insightResponse.getFee2()); //fee per KB
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BigDecimal normalFee = new BigDecimal(insightResponse.getFee3());
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BigDecimal maxFee = new BigDecimal(insightResponse.getFee6());
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if (minFee.equals(BigDecimal.ZERO) || normalFee.equals(BigDecimal.ZERO) || maxFee.equals(BigDecimal.ZERO)) {
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serverApiInsight.requestData(ServerApiInsight.INSIGHT_FEE, "","");
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}
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minFee = minFee.multiply(new BigDecimal(calcSize)).divide(new BigDecimal(1024)); // (per KB -> per byte)*size
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normalFee = normalFee.multiply(new BigDecimal(calcSize)).divide(new BigDecimal(1024));
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maxFee = maxFee.multiply(new BigDecimal(calcSize)).divide(new BigDecimal(1024));
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// //compare fee to usual relay fee TODO: check if needed after we get access to Ducatus network
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// if (fee.compareTo(relayFee) < 0) {
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// fee = relayFee;
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// coinData.minFee=null;
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// coinData.maxFee=null;
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// coinData.normalFee=null;
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//
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// final ServerApiInsight serverApiInsight = new ServerApiInsight();
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//
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// final ServerApiInsight.ResponseListener responseListener = new ServerApiInsight.ResponseListener() {
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// @Override
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// public void onSuccess(String method, InsightResponse insightResponse) {
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// if ( method.equals(ServerApiInsight.INSIGHT_FEE)) {
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// try {
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// BigDecimal minFee = new BigDecimal(insightResponse.getFee2()); //fee per KB
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// BigDecimal normalFee = new BigDecimal(insightResponse.getFee3());
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// BigDecimal maxFee = new BigDecimal(insightResponse.getFee6());
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//
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// if (minFee.equals(BigDecimal.ZERO) || normalFee.equals(BigDecimal.ZERO) || maxFee.equals(BigDecimal.ZERO)) {
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// serverApiInsight.requestData(ServerApiInsight.INSIGHT_FEE, "","");
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// }
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minFee = minFee.setScale(8, RoundingMode.DOWN);
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normalFee = normalFee.setScale(8, RoundingMode.DOWN);
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maxFee = maxFee.setScale(8, RoundingMode.DOWN);
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//
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// minFee = minFee.multiply(new BigDecimal(calcSize)).divide(new BigDecimal(1024)); // (per KB -> per byte)*size
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// normalFee = normalFee.multiply(new BigDecimal(calcSize)).divide(new BigDecimal(1024));
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// maxFee = maxFee.multiply(new BigDecimal(calcSize)).divide(new BigDecimal(1024));
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//
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//// //compare fee to usual relay fee TODO: check if needed after we get access to Ducatus network
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//// if (fee.compareTo(relayFee) < 0) {
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//// fee = relayFee;
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//// }
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// minFee = minFee.setScale(8, RoundingMode.DOWN);
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// normalFee = normalFee.setScale(8, RoundingMode.DOWN);
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// maxFee = maxFee.setScale(8, RoundingMode.DOWN);
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//
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// coinData.minFee = new Amount(minFee, ctx.getBlockchain().getCurrency());
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// coinData.normalFee = new Amount(normalFee, ctx.getBlockchain().getCurrency());
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// coinData.maxFee = new Amount(maxFee, ctx.getBlockchain().getCurrency());
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//
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// blockchainRequestsCallbacks.onComplete(true);
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//
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// } catch (Exception e) {
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// e.printStackTrace();
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// }
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// }
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// }
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//
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// @Override
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// public void onSuccess (String method, List<InsightResponse> utxoList) {
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// Log.e(TAG, "Wrong response body, InsightResponse expected");
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// }
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//
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// @Override
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// public void onFail(String method, String message) {
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// if (!serverApiInsight.isRequestsSequenceCompleted()) {
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// ctx.setError(message);
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// blockchainRequestsCallbacks.onComplete(false);
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// }
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// }
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// };
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// serverApiInsight.setResponseListener(responseListener);
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//
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// serverApiInsight.requestData(ServerApiInsight.INSIGHT_FEE, "", ""); TODO: fee api returns -1 now
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coinData.minFee = new Amount(minFee, ctx.getBlockchain().getCurrency());
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coinData.normalFee = new Amount(normalFee, ctx.getBlockchain().getCurrency());
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coinData.maxFee = new Amount(maxFee, ctx.getBlockchain().getCurrency());
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coinData.minFee = new Amount(BigDecimal.valueOf(calcSize).multiply(BigDecimal.valueOf(0.00000089)), ctx.getBlockchain().getCurrency()); //fee for byte from Ducatus wallet for android
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coinData.normalFee = new Amount(BigDecimal.valueOf(calcSize).multiply(BigDecimal.valueOf(0.00000144)), ctx.getBlockchain().getCurrency());
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coinData.maxFee = new Amount(BigDecimal.valueOf(calcSize).multiply(BigDecimal.valueOf(0.00000350)), ctx.getBlockchain().getCurrency());
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blockchainRequestsCallbacks.onComplete(true);
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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}
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@Override
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public void onSuccess (String method, List<InsightResponse> utxoList) {
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Log.e(TAG, "Wrong response body, InsightResponse expected");
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}
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@Override
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public void onFail(String method, String message) {
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if (!serverApiInsight.isRequestsSequenceCompleted()) {
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ctx.setError(message);
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blockchainRequestsCallbacks.onComplete(false);
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}
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}
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};
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serverApiInsight.setResponseListener(responseListener);
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serverApiInsight.requestData(ServerApiInsight.INSIGHT_FEE, "", "");
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blockchainRequestsCallbacks.onComplete(true);
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}
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@Override
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@ -656,7 +641,7 @@ public class DucatusEngine extends BtcEngine {
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if (resultString.isEmpty()) {
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ctx.setError("No response from node");
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blockchainRequestsCallbacks.onComplete(false);
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}else { // TODO: Make check for a valid send response
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} else { // TODO: Make check for a valid send response
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ctx.setError(null);
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blockchainRequestsCallbacks.onComplete(true);
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}
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@ -675,7 +660,7 @@ public class DucatusEngine extends BtcEngine {
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}
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@Override
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public void onSuccess (String method, List<InsightResponse> utxoList) {
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public void onSuccess(String method, List<InsightUtxo> utxoList) {
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Log.e(TAG, "Wrong response body, InsightResponse expected");
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}
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Add table
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Reference in a new issue