831 lines
No EOL
33 KiB
Java
831 lines
No EOL
33 KiB
Java
package com.tangem.wallet.ltc;
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import android.net.Uri;
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import android.text.InputFilter;
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import android.util.Log;
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import com.tangem.App;
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import com.tangem.data.local.PendingTransactionsStorage;
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import com.tangem.data.network.Server;
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import com.tangem.data.network.ServerApiBlockcypher;
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import com.tangem.data.network.ServerApiPayId;
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import com.tangem.data.network.model.BlockcypherFee;
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import com.tangem.data.network.model.BlockcypherResponse;
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import com.tangem.data.network.model.BlockcypherTx;
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import com.tangem.data.network.model.BlockcypherTxref;
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import com.tangem.data.network.model.PayIdAddress;
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import com.tangem.data.network.model.PayIdResponse;
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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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import com.tangem.tangem_card.util.Util;
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import com.tangem.util.CryptoUtil;
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import com.tangem.util.DecimalDigitsInputFilter;
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import com.tangem.util.DerEncodingUtil;
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import com.tangem.wallet.BTCUtils;
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import com.tangem.wallet.BalanceValidator;
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import com.tangem.wallet.Base58;
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import com.tangem.wallet.CoinData;
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import com.tangem.wallet.CoinEngine;
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import com.tangem.wallet.R;
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import com.tangem.wallet.TangemContext;
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import com.tangem.wallet.Transaction;
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import com.tangem.wallet.UnspentOutputInfo;
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import com.tangem.wallet.btc.BtcData;
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import com.tangem.wallet.btc.BtcEngine;
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import com.tangem.wallet.btc.Unspents;
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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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import java.util.ArrayList;
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import java.util.Arrays;
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import io.reactivex.CompletableObserver;
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import io.reactivex.SingleObserver;
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import io.reactivex.observers.DisposableCompletableObserver;
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import io.reactivex.observers.DisposableSingleObserver;
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public class LtcEngine extends BtcEngine {
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private static final String TAG = LtcEngine.class.getSimpleName();
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public BtcData coinData = null;
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public LtcEngine(TangemContext context) throws Exception {
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super(context);
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if (context.getCoinData() == null) {
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coinData = new BtcData();
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context.setCoinData(coinData);
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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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}
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}
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public LtcEngine() {
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super();
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}
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private static int getDecimals() {
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return 8;
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}
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private void checkBlockchainDataExists() throws Exception {
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if (coinData == null) throw new Exception("No blockchain data");
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}
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@Override
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public boolean awaitingConfirmation() {
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if (coinData == null) return false;
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return coinData.getBalanceUnconfirmed() != 0 || App.pendingTransactionsStorage.hasTransactions(ctx.getCard());
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}
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@Override
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public String getBalanceHTML() {
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Amount balance = getBalance();
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if (balance != null) {
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return balance.toDescriptionString(getDecimals());
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} else {
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return "";
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}
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}
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@Override
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public String getBalanceCurrency() {
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return "LTC";
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}
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@Override
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public boolean isBalanceNotZero() {
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if (coinData == null) return false;
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if (coinData.getBalanceInInternalUnits() == null) return false;
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return coinData.getBalanceInInternalUnits().notZero();
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}
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@Override
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public boolean hasBalanceInfo() {
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if (coinData == null) return false;
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return coinData.hasBalanceInfo();
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}
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@Override
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public boolean isExtractPossible() {
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if (!hasBalanceInfo()) {
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ctx.setMessage(R.string.loaded_wallet_error_obtaining_blockchain_data);
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} else if (!isBalanceNotZero()) {
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ctx.setMessage(R.string.general_wallet_empty);
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} else if (awaitingConfirmation()) {
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ctx.setMessage(R.string.loaded_wallet_message_wait);
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} else if (coinData.getUnspentTransactions().size() == 0) {
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ctx.setMessage(R.string.loaded_wallet_message_refresh);
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} else {
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return true;
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}
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return false;
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}
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@Override
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public String getFeeCurrency() {
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return "LTC";
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}
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@Override
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public boolean validateAddress(String address) {
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if (address == null || address.isEmpty()) {
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return false;
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}
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if (address.contains("$")) { // PayID
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return validatePayId(address);
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}
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if (address.length() < 25) {
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return false;
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}
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if (address.length() > 35) {
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return false;
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}
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if (!address.startsWith("L") && !address.startsWith("M")) {
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return false;
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}
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byte[] decAddress = Base58.decodeBase58(address);
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if (decAddress == null || decAddress.length == 0) {
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return false;
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}
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byte[] rip = new byte[21];
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for (int i = 0; i < 21; ++i) {
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rip[i] = decAddress[i];
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}
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byte[] kcv = CryptoUtil.doubleSha256(rip);
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for (int i = 0; i < 4; ++i) {
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if (kcv[i] != decAddress[21 + i])
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return false;
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}
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return true;
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}
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@Override
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public boolean isNeedCheckNode() {
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return true;
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}
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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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}
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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(ctx.getCoinData().getWallet() + "?amount=" + convertToAmount(convertToInternalAmount(ctx.getCard().getDenomination())).toValueString(8));
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} else {
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return Uri.parse(ctx.getCoinData().getWallet());
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}
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}
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@Override
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public InputFilter[] getAmountInputFilters() {
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return new InputFilter[]{new DecimalDigitsInputFilter(getDecimals())};
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}
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@Override
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public boolean checkNewTransactionAmount(Amount amount) {
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if (coinData == null) return false;
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if (amount.compareTo(convertToAmount(coinData.getBalanceInInternalUnits())) > 0) {
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return false;
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}
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return true;
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}
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@Override
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public boolean checkNewTransactionAmountAndFee(Amount amountValue, Amount feeValue, Boolean isIncludeFee) {
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InternalAmount fee;
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InternalAmount amount;
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try {
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checkBlockchainDataExists();
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amount = convertToInternalAmount(amountValue);
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fee = convertToInternalAmount(feeValue);
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} catch (Exception e) {
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e.printStackTrace();
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return false;
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}
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if (fee == null || amount == null)
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return false;
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if (fee.isZero() || amount.isZero())
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return false;
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if (isIncludeFee && (amount.compareTo(coinData.getBalanceInInternalUnits()) > 0 || amount.compareTo(fee) < 0))
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return false;
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if (!isIncludeFee && amount.add(fee).compareTo(coinData.getBalanceInInternalUnits()) > 0)
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return false;
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return true;
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}
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@Override
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public boolean validateBalance(BalanceValidator balanceValidator) {
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if (((ctx.getCard().getOfflineBalance() == null) && !ctx.getCoinData().isBalanceReceived()) || (!ctx.getCoinData().isBalanceReceived() && (ctx.getCard().getRemainingSignatures() != ctx.getCard().getMaxSignatures()))) {
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balanceValidator.setScore(0);
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balanceValidator.setFirstLine(R.string.balance_validator_first_line_unknown_balance);
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balanceValidator.setSecondLine(R.string.balance_validator_second_line_unverified_balance);
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return false;
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}
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// Workaround before new back-end
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// if (card.getRemainingSignatures() == card.getMaxSignatures()) {
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// firstLine = "Verified balance";
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// secondLine = "Balance confirmed in blockchain. ";
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// secondLine += "Verified note identity. ";
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// return;
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// }
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if (coinData.getBalanceUnconfirmed() != 0) {
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balanceValidator.setScore(0);
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balanceValidator.setFirstLine(R.string.balance_validator_first_line_transaction_in_progress);
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balanceValidator.setSecondLine(R.string.balance_validator_second_line_wait_for_confirmation);
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return false;
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}
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if (coinData.isBalanceReceived() && coinData.isBalanceEqual()) {
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balanceValidator.setScore(100);
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balanceValidator.setFirstLine(R.string.balance_validator_first_line_verified_balance);
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balanceValidator.setSecondLine(R.string.balance_validator_second_line_confirmed_in_blockchain);
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if (coinData.getBalanceInInternalUnits().isZero()) {
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balanceValidator.setFirstLine(R.string.balance_validator_first_line_empty_wallet);
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balanceValidator.setSecondLine(R.string.empty_string);
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}
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}
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// rule 4 TODO: need to check SignedHashed against number of outputs in blockchain
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// if((card.getRemainingSignatures() != card.getMaxSignatures()) && card.getBalance() != 0)
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// {
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// score = 80;
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// firstLine = "Unguaranteed balance";
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// secondLine = "Potential unsent transaction. Redeem immediately if accept. ";
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// return;
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// }
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// if ((ctx.getCard().getOfflineBalance() != null) && !coinData.isBalanceReceived() && ctx.getCard().getRemainingSignatures() == ctx.getCard().getMaxSignatures()) {
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// balanceValidator.setScore(80);
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// balanceValidator.setFirstLine(R.string.balance_validator_first_line_verified_offline);
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// balanceValidator.setSecondLine(R.string.balance_validator_second_line_internet_to_verify_online);
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// }
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// if(card.getFailedBalanceRequestCounter()!=0) {
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// score -= 5 * card.getFailedBalanceRequestCounter();
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// secondLine += "Not all nodes have returned balance. Swipe down or tap again. ";
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// if(score <= 0)
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// return;
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// }
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//
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// if(card.isBalanceReceived() && !card.isBalanceEqual()) {
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// score = 0;
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// firstLine = "Disputed balance";
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// secondLine += " Cannot obtain trusted balance at the moment. Try to tap and check this banknote later.";
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// return;
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// }
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return true;
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}
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@Override
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public Amount getBalance() {
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if (!hasBalanceInfo()) return null;
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return convertToAmount(coinData.getBalanceInInternalUnits());
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}
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@Override
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public String evaluateFeeEquivalent(String fee) {
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if (!coinData.getAmountEquivalentDescriptionAvailable()) return "";
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try {
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Amount feeAmount = new Amount(fee, getFeeCurrency());
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return feeAmount.toEquivalentString(coinData.getRate());
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} catch (Exception e) {
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return "";
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}
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}
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@Override
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public String getBalanceEquivalent() {
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if (coinData == null || !coinData.getAmountEquivalentDescriptionAvailable()) return "";
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Amount balance = getBalance();
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if (balance == null) return "";
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return balance.toEquivalentString(coinData.getRate());
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}
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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 hash1[] = Util.calculateSHA256(pkUncompressed);
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byte hash2[] = Util.calculateRIPEMD160(hash1);
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ByteBuffer BB = ByteBuffer.allocate(hash2.length + 1);
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BB.put(netSelectionByte);
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BB.put(hash2);
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byte hash3[] = Util.calculateSHA256(BB.array());
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byte hash4[] = Util.calculateSHA256(hash3);
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BB = ByteBuffer.allocate(hash2.length + 5);
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BB.put(netSelectionByte); //BB.put((byte) 0x6f);
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BB.put(hash2);
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BB.put(hash4[0]);
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BB.put(hash4[1]);
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BB.put(hash4[2]);
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BB.put(hash4[3]);
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return org.bitcoinj.core.Base58.encode(BB.array());
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}
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@Override
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public Amount convertToAmount(InternalAmount internalAmount) {
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BigDecimal d = internalAmount.divide(new BigDecimal("100000000")).setScale(getDecimals(), RoundingMode.DOWN);
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return new Amount(d, getBalanceCurrency());
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}
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@Override
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public Amount convertToAmount(String strAmount, String currency) {
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return new Amount(strAmount, currency);
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}
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@Override
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public InternalAmount convertToInternalAmount(Amount amount) {
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BigDecimal d = amount.multiply(new BigDecimal("100000000"));
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return new InternalAmount(d, "Satoshi");
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}
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@Override
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public InternalAmount convertToInternalAmount(byte[] bytes) {
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if (bytes == null) return null;
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byte[] reversed = new byte[bytes.length];
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for (int i = 0; i < bytes.length; i++) reversed[i] = bytes[bytes.length - i - 1];
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return new InternalAmount(Util.byteArrayToLong(reversed), "Satoshi");
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}
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@Override
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public byte[] convertToByteArray(InternalAmount internalAmount) {
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byte[] bytes = Util.longToByteArray(internalAmount.longValueExact());
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byte[] reversed = new byte[bytes.length];
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for (int i = 0; i < bytes.length; i++) reversed[i] = bytes[bytes.length - i - 1];
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return reversed;
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}
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@Override
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public CoinData createCoinData() {
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return new BtcData();
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}
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@Override
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public String getUnspentInputsDescription() {
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Unspents unspents = coinData.getUnspentInputsDescription();
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if (unspents == null) {
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return "";
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} else {
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return String.format(
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ctx.getContext().getString(R.string.details_unspents_number),
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unspents.getUnspetns(),
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unspents.getGatheredUnspents());
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}
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}
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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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ArrayList<UnspentOutputInfo> unspentOutputs = new ArrayList<>();
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checkBlockchainDataExists();
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String destination;
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//PayID
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if (coinData.getResolvedPayIdAddress() != null) {
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destination = coinData.getResolvedPayIdAddress();
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} else {
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destination = targetAddress;
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}
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String myAddress = ctx.getCoinData().getWallet();
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byte[] pbKey = ctx.getCard().getWalletPublicKey();
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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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fullAmount += unspentOutputs.get(i).value;
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}
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long fees = convertToInternalAmount(feeValue).longValueExact();
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long amount = convertToInternalAmount(amountValue).longValueExact();
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long change = fullAmount - amount;
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if (IncFee) {
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amount = amount - fees;
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} else {
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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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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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}
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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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for (int i = 0; i < unspentOutputs.size(); ++i) {
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txForSign[i] = BTCUtils.buildTXForSign(myAddress, destination, myAddress, unspentOutputs, i, amount, change);
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bodyHash[i] = Util.calculateSHA256(txForSign[i]);
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bodyDoubleHash[i] = Util.calculateSHA256(bodyHash[i]);
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}
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return new SignTask.TransactionToSign() {
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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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}
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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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for (int i = 0; i < unspentOutputs.size(); ++i) {
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dataForSign[i] = bodyDoubleHash[i];
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}
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return dataForSign;
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}
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@Override
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public byte[] getRawDataToSign() throws Exception {
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ByteArrayOutputStream bs = new ByteArrayOutputStream();
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for (int i = 0; i < txForSign.length; i++) {
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if (i != 0 && txForSign[0].length != txForSign[i].length)
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throw new Exception("Hashes length must be identical!");
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bs.write(txForSign[i]);
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}
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return bs.toByteArray();
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}
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@Override
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public String getHashAlgToSign() {
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return "sha-256x2";
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}
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@Override
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public byte[] getIssuerTransactionSignature(byte[] dataToSignByIssuer) throws Exception {
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throw new Exception("Issuer validation not supported!");
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}
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@Override
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public byte[] onSignCompleted(byte[] signFromCard) throws Exception {
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for (int i = 0; i < unspentOutputs.size(); ++i) {
|
|
BigInteger r = new BigInteger(1, Arrays.copyOfRange(signFromCard, i * 64, 32 + i * 64));
|
|
BigInteger s = new BigInteger(1, Arrays.copyOfRange(signFromCard, 32 + i * 64, 64 + i * 64));
|
|
s = CryptoUtil.toCanonicalised(s);
|
|
|
|
unspentOutputs.get(i).scriptForBuild = DerEncodingUtil.packSignDer(r, s, pbKey);
|
|
}
|
|
|
|
byte[] txForSend = BTCUtils.buildTXForSend(destination, myAddress, unspentOutputs, amountFinal, changeFinal);
|
|
notifyOnNeedSendTransaction(txForSend);
|
|
return txForSend;
|
|
}
|
|
};
|
|
}
|
|
|
|
@Override
|
|
public void requestBalanceAndUnspentTransactions(BlockchainRequestsCallbacks blockchainRequestsCallbacks) throws Exception {
|
|
ctx.setError(null);
|
|
|
|
final ServerApiBlockcypher serverApiBlockcypher = new ServerApiBlockcypher();
|
|
|
|
ServerApiBlockcypher.ResponseListener blockcypherListener = new ServerApiBlockcypher.ResponseListener() {
|
|
@Override
|
|
public void onSuccess(String method, BlockcypherResponse blockcypherResponse) {
|
|
Log.i(TAG, "onSuccess: " + method);
|
|
try {
|
|
String walletAddress = blockcypherResponse.getAddress();
|
|
if (!walletAddress.equals(coinData.getWallet())) {
|
|
// todo - check
|
|
throw new Exception("Invalid wallet address in answer!");
|
|
}
|
|
Long confBalance = blockcypherResponse.getBalance();
|
|
Long unconfirmedBalance = blockcypherResponse.getUnconfirmed_balance();
|
|
coinData.setBalanceReceived(true);
|
|
coinData.setBalanceConfirmed(confBalance);
|
|
coinData.setBalanceUnconfirmed(unconfirmedBalance);
|
|
coinData.setValidationNodeDescription(Server.ApiBlockcypher.URL_BLOCKCYPHER);
|
|
|
|
coinData.getUnspentTransactions().clear();
|
|
//TODO: change request logic, 2000 tx max
|
|
if (blockcypherResponse.getTxrefs() != null) {
|
|
for (BlockcypherTxref txref : blockcypherResponse.getTxrefs()) {
|
|
if (txref.getTx_input_n() == -1) { //recieved only
|
|
if (!txref.getSpent()) {
|
|
BtcData.UnspentTransaction trUnspent = new BtcData.UnspentTransaction();
|
|
trUnspent.txID = txref.getTx_hash();
|
|
trUnspent.amount = txref.getValue();
|
|
trUnspent.outputN = txref.getTx_output_n();
|
|
trUnspent.script = txref.getScript();
|
|
coinData.getUnspentTransactions().add(trUnspent);
|
|
}
|
|
} else { //sent only
|
|
coinData.incSentTransactionsCount();
|
|
}
|
|
}
|
|
}
|
|
|
|
if (blockcypherResponse.getUnconfirmed_txrefs() != null) {
|
|
for (BlockcypherTxref unconfirmedTxref : blockcypherResponse.getUnconfirmed_txrefs()) {
|
|
if (unconfirmedTxref.getTx_input_n() != -1) {
|
|
coinData.incSentTransactionsCount();
|
|
}
|
|
}
|
|
}
|
|
} catch (Exception e) {
|
|
Log.e(TAG, "FAIL BLOCKCYPHER_ADDRESS Exception");
|
|
e.printStackTrace();
|
|
ctx.setError(e.getMessage());
|
|
blockchainRequestsCallbacks.onComplete(false);
|
|
}
|
|
|
|
checkPending(blockchainRequestsCallbacks);
|
|
}
|
|
|
|
public void onSuccess(String method, BlockcypherFee blockcypherFee) {
|
|
Log.e(TAG, "Wrong response type for requestBalanceAndUnspentTransactions");
|
|
ctx.setError("Wrong response type for requestBalanceAndUnspentTransactions");
|
|
blockchainRequestsCallbacks.onComplete(false);
|
|
}
|
|
|
|
@Override
|
|
public void onFail(String method, String message) {
|
|
Log.i(TAG, "onFail: " + method + " " + message);
|
|
ctx.setError(message);
|
|
blockchainRequestsCallbacks.onComplete(false);
|
|
}
|
|
};
|
|
|
|
serverApiBlockcypher.setResponseListener(blockcypherListener);
|
|
|
|
serverApiBlockcypher.requestData(ctx.getBlockchain().getID(), ServerApiBlockcypher.BLOCKCYPHER_ADDRESS, ctx.getCoinData().getWallet(), "");
|
|
}
|
|
|
|
private void checkPending(BlockchainRequestsCallbacks blockchainRequestsCallbacks) {
|
|
if (App.pendingTransactionsStorage.hasTransactions(ctx.getCard())) {
|
|
ServerApiBlockcypher serverApiBlockcypher = new ServerApiBlockcypher();
|
|
|
|
ServerApiBlockcypher.TxResponseListener listener = new ServerApiBlockcypher.TxResponseListener() {
|
|
@Override
|
|
public void onSuccess(BlockcypherTx response) {
|
|
Log.i(TAG, "onSuccess: BlockcypherTx");
|
|
try {
|
|
if (response.getHex() != null) {
|
|
App.pendingTransactionsStorage.removeTransaction(ctx.getCard(), response.getHex());
|
|
}
|
|
} catch (Exception e) {
|
|
Log.e(TAG, "onFail: BlockcypherTx" + response);
|
|
}
|
|
if (serverApiBlockcypher.isRequestsSequenceCompleted()) {
|
|
blockchainRequestsCallbacks.onComplete(!ctx.hasError());
|
|
} else {
|
|
blockchainRequestsCallbacks.onProgress();
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public void onFail(String message) {
|
|
Log.i(TAG, "onFail: BlockcypherTx " + message);
|
|
if (serverApiBlockcypher.isRequestsSequenceCompleted()) {
|
|
blockchainRequestsCallbacks.onComplete(!ctx.hasError());//serverApiElectrum.isErrorOccurred(), serverApiElectrum.getError());
|
|
} else {
|
|
blockchainRequestsCallbacks.onProgress();
|
|
}
|
|
}
|
|
};
|
|
serverApiBlockcypher.setTxResponseListener(listener);
|
|
|
|
for (PendingTransactionsStorage.TransactionInfo pendingTx : App.pendingTransactionsStorage.getTransactions(ctx.getCard()).getTransactions()) {
|
|
String txId = BTCUtils.toHex(BTCUtils.reverse(CryptoUtil.doubleSha256(BTCUtils.fromHex(pendingTx.getTx()))));
|
|
try {
|
|
serverApiBlockcypher.requestData(ctx.getBlockchain().getID(), ServerApiBlockcypher.BLOCKCYPHER_TXS, "", txId);
|
|
} catch (Exception e) {
|
|
e.printStackTrace();
|
|
blockchainRequestsCallbacks.onComplete(!ctx.hasError());
|
|
}
|
|
}
|
|
} else {
|
|
blockchainRequestsCallbacks.onComplete(!ctx.hasError());
|
|
}
|
|
}
|
|
|
|
private final static Amount relayFee = new Amount(new BigDecimal(0.00001).setScale(8, RoundingMode.DOWN), "LTC");
|
|
|
|
private void forceRelayFeeMinimum(Amount fee) {
|
|
if (fee.compareTo(relayFee) < 0) {
|
|
fee = relayFee;
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public void requestFee(BlockchainRequestsCallbacks blockchainRequestsCallbacks, String targetAddress, Amount amount) throws Exception {
|
|
|
|
CompletableObserver payIdObserver = new DisposableCompletableObserver() {
|
|
@Override
|
|
public void onComplete() {
|
|
int calcSize = calculateEstimatedTransactionSize(coinData.getResolvedPayIdAddress(), amount.toValueString());
|
|
Log.e(TAG, String.format("Estimated tx size %d", calcSize));
|
|
|
|
checkFee(blockchainRequestsCallbacks, calcSize);
|
|
|
|
blockchainRequestsCallbacks.onComplete(true);
|
|
}
|
|
|
|
@Override
|
|
public void onError(Throwable e) {
|
|
ctx.setError(e.getMessage());
|
|
blockchainRequestsCallbacks.onComplete(false);
|
|
}
|
|
};
|
|
|
|
if (targetAddress.contains("$")) { // PayID
|
|
resolvePayID(targetAddress, payIdObserver);
|
|
} else {
|
|
int calcSize = calculateEstimatedTransactionSize(targetAddress, amount.toValueString());
|
|
Log.e(TAG, String.format("Estimated tx size %d", calcSize));
|
|
|
|
checkFee(blockchainRequestsCallbacks, calcSize);
|
|
|
|
blockchainRequestsCallbacks.onComplete(true);
|
|
}
|
|
}
|
|
|
|
private void checkFee(BlockchainRequestsCallbacks blockchainRequestsCallbacks, int calcSize) {
|
|
coinData.minFee = null;
|
|
coinData.maxFee = null;
|
|
coinData.normalFee = null;
|
|
|
|
final ServerApiBlockcypher serverApiBlockcypher = new ServerApiBlockcypher();
|
|
|
|
ServerApiBlockcypher.ResponseListener blockcypherListener = new ServerApiBlockcypher.ResponseListener() {
|
|
@Override
|
|
public void onSuccess(String method, BlockcypherResponse blockcypherResponse) {
|
|
Log.e(TAG, "Wrong response type for requestFee");
|
|
ctx.setError("Wrong response type for requestFee");
|
|
blockchainRequestsCallbacks.onComplete(false);
|
|
}
|
|
|
|
public void onSuccess(String method, BlockcypherFee blockcypherFee) {
|
|
Log.i(TAG, "onSuccess: " + method);
|
|
try {
|
|
BigDecimal minByteFee = new BigDecimal(blockcypherFee.getLow_fee_per_kb()).divide(BigDecimal.valueOf(1024));
|
|
BigDecimal normalByteFee = new BigDecimal(blockcypherFee.getMedium_fee_per_kb()).divide(BigDecimal.valueOf(1024));
|
|
BigDecimal maxByteFee = new BigDecimal(blockcypherFee.getHigh_fee_per_kb()).divide(BigDecimal.valueOf(1024));
|
|
|
|
CoinEngine.InternalAmount minIntAmount = new CoinEngine.InternalAmount(minByteFee.multiply(BigDecimal.valueOf(calcSize)), "satoshi");
|
|
CoinEngine.InternalAmount normalIntAmount = new CoinEngine.InternalAmount(normalByteFee.multiply(BigDecimal.valueOf(calcSize)), "satoshi");
|
|
CoinEngine.InternalAmount maxIntAmount = new CoinEngine.InternalAmount(maxByteFee.multiply(BigDecimal.valueOf(calcSize)), "satoshi");
|
|
|
|
coinData.minFee = convertToAmount(minIntAmount);
|
|
coinData.normalFee = convertToAmount(normalIntAmount);
|
|
coinData.maxFee = convertToAmount(maxIntAmount);
|
|
|
|
forceRelayFeeMinimum(coinData.minFee);
|
|
forceRelayFeeMinimum(coinData.normalFee);
|
|
forceRelayFeeMinimum(coinData.maxFee);
|
|
|
|
} catch (Exception e) {
|
|
e.printStackTrace();
|
|
Log.e(TAG, "FAIL BLOCKCYPHER_FEE Exception");
|
|
}
|
|
|
|
if (serverApiBlockcypher.isRequestsSequenceCompleted()) {
|
|
blockchainRequestsCallbacks.onComplete(!ctx.hasError());
|
|
} else {
|
|
blockchainRequestsCallbacks.onProgress();
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public void onFail(String method, String message) {
|
|
Log.i(TAG, "onFail: " + method + " " + message);
|
|
ctx.setError(message);
|
|
blockchainRequestsCallbacks.onComplete(false);
|
|
}
|
|
};
|
|
|
|
serverApiBlockcypher.setResponseListener(blockcypherListener);
|
|
|
|
serverApiBlockcypher.requestData(ctx.getBlockchain().getID(), ServerApiBlockcypher.BLOCKCYPHER_FEE, "", "");
|
|
}
|
|
|
|
private void resolvePayID(String targetAddress, CompletableObserver observer) {
|
|
final ServerApiPayId serverApiPayId = new ServerApiPayId();
|
|
|
|
SingleObserver<PayIdResponse> payIdObserver = new DisposableSingleObserver<PayIdResponse>() {
|
|
@Override
|
|
public void onSuccess(PayIdResponse payIdResponse) {
|
|
try {
|
|
String resolvedAddress = null;
|
|
for (PayIdAddress address : payIdResponse.getAddresses()) {
|
|
if (address.getPaymentNetwork().equals(ctx.getBlockchain().getCurrency()) &&
|
|
address.getEnvironment().equals("MAINNET")) {
|
|
resolvedAddress = address.getAddressDetails().getAddress();
|
|
break;
|
|
}
|
|
}
|
|
if (validateAddress(resolvedAddress)) {
|
|
if (resolvedAddress.equals(coinData.getWallet())) {
|
|
coinData.setResolvedPayIdAddress(resolvedAddress);
|
|
observer.onComplete();
|
|
} else {
|
|
observer.onError(new Exception("Resolved PayID address equals source address"));
|
|
}
|
|
} else {
|
|
observer.onError(new Exception("Unknown address format in PayID response"));
|
|
}
|
|
} catch (Exception e) {
|
|
observer.onError(new Exception("Unknown response format on PayID request"));
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public void onError(Throwable e) {
|
|
Log.i(TAG, "onFail: " + "payID" + " " + e.getMessage());
|
|
observer.onError(new Exception("PayID error:" + e.getMessage()));
|
|
}
|
|
};
|
|
|
|
serverApiPayId.getAddress(targetAddress, ctx.getBlockchain(), payIdObserver);
|
|
}
|
|
|
|
@Override
|
|
public void requestSendTransaction(BlockchainRequestsCallbacks blockchainRequestsCallbacks, byte[] txForSend) throws Exception {
|
|
final String txStr = BTCUtils.toHex(txForSend);
|
|
final ServerApiBlockcypher serverApiBlockcypher = new ServerApiBlockcypher();
|
|
|
|
ServerApiBlockcypher.ResponseListener blockcypherListener = new ServerApiBlockcypher.ResponseListener() {
|
|
@Override
|
|
public void onSuccess(String method, BlockcypherResponse blockcypherResponse) {
|
|
String resultString = blockcypherResponse.toString();
|
|
try {
|
|
if (resultString.isEmpty()) {
|
|
ctx.setError("No response from node");
|
|
blockchainRequestsCallbacks.onComplete(false);
|
|
} else { // TODO: Make check for a valid send response
|
|
ctx.setError(null);
|
|
blockchainRequestsCallbacks.onComplete(true);
|
|
}
|
|
} catch (Exception e) {
|
|
if (e.getMessage() != null) {
|
|
ctx.setError(e.getMessage());
|
|
blockchainRequestsCallbacks.onComplete(false);
|
|
} else {
|
|
ctx.setError(e.getClass().getName());
|
|
blockchainRequestsCallbacks.onComplete(false);
|
|
Log.e(TAG, resultString);
|
|
}
|
|
}
|
|
}
|
|
|
|
public void onSuccess(String method, BlockcypherFee blockcypherFee) {
|
|
Log.e(TAG, "Wrong response type for requestSendTransaction");
|
|
ctx.setError("Wrong response type for requestSendTransaction");
|
|
blockchainRequestsCallbacks.onComplete(false);
|
|
}
|
|
|
|
@Override
|
|
public void onFail(String method, String message) {
|
|
Log.i(TAG, "onFail: " + method + " " + message);
|
|
ctx.setError(message);
|
|
blockchainRequestsCallbacks.onComplete(false);
|
|
}
|
|
};
|
|
serverApiBlockcypher.setResponseListener(blockcypherListener);
|
|
|
|
serverApiBlockcypher.requestData(ctx.getBlockchain().getID(), ServerApiBlockcypher.BLOCKCYPHER_SEND, "", txStr);
|
|
}
|
|
} |