tangem-app-android-audited/app/src/main/java/com/tangem/wallet/token/TokenEngine.java
2020-02-12 19:10:14 +03:00

889 lines
36 KiB
Java

package com.tangem.wallet.token;
import android.net.Uri;
import android.os.Bundle;
import android.text.InputFilter;
import android.util.Log;
import com.google.common.base.Strings;
import com.tangem.App;
import com.tangem.data.Blockchain;
import com.tangem.data.network.ServerApiBlockcypher;
import com.tangem.data.network.ServerApiInfura;
import com.tangem.data.network.model.BlockcypherFee;
import com.tangem.data.network.model.BlockcypherResponse;
import com.tangem.data.network.model.BlockcypherTxref;
import com.tangem.data.network.model.InfuraResponse;
import com.tangem.tangem_card.data.TangemCard;
import com.tangem.tangem_card.tasks.SignTask;
import com.tangem.util.CryptoUtil;
import com.tangem.util.DecimalDigitsInputFilter;
import com.tangem.wallet.BTCUtils;
import com.tangem.wallet.BalanceValidator;
import com.tangem.wallet.CoinData;
import com.tangem.wallet.CoinEngine;
import com.tangem.wallet.ECDSASignatureETH;
import com.tangem.wallet.EthTransaction;
import com.tangem.wallet.Keccak256;
import com.tangem.wallet.R;
import com.tangem.wallet.TangemContext;
import com.tangem.wallet.eth.EthData;
import org.bitcoinj.core.ECKey;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.math.RoundingMode;
import java.util.Arrays;
/**
* Created by Ilia on 20.03.2018.
*/
public class TokenEngine extends CoinEngine {
private static final String TAG = TokenEngine.class.getSimpleName();
public TokenData coinData = null;
public TokenEngine(TangemContext ctx) throws Exception {
super(ctx);
if (ctx.getCoinData() == null) {
coinData = new TokenData();
ctx.setCoinData(coinData);
} else if (ctx.getCoinData() instanceof TokenData) {
coinData = (TokenData) ctx.getCoinData();
} else if (ctx.getCoinData() instanceof EthData) {
// special case with receive card data substitution from server at the moment
Bundle B = new Bundle();
ctx.getCoinData().saveToBundle(B);
coinData = new TokenData();
coinData.loadFromBundle(B);
ctx.setCoinData(coinData);
} else {
throw new Exception("Invalid type of Blockchain data for " + this.getClass().getSimpleName());
}
}
public TokenEngine() {
super();
}
public Blockchain getBlockchain() {
return Blockchain.Token;
}
protected int getChainIdNum() {
return EthTransaction.ChainEnum.Mainnet.getValue();
}
@Override
public boolean awaitingConfirmation() {
return !coinData.getUnconfirmedTXCount().equals(coinData.getConfirmedTXCount()) || App.pendingTransactionsStorage.hasTransactions(ctx.getCard());
}
@Override
public Amount getBalance() {
if (!hasBalanceInfo()) {
return null;
}
try {
if (coinData.getBalanceInInternalUnits().notZero()) {
return convertToAmount(coinData.getBalanceInInternalUnits());
} else {
return convertToAmount(coinData.getBalanceAlterInInternalUnits());
}
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
@Override
public String getBalanceHTML() {
if (hasBalanceInfo()) {
try {
return " " + convertToAmount(coinData.getBalanceInInternalUnits()).toDescriptionString(getTokenDecimals()) + "<br><small><small>+ " + convertToAmount(coinData.getBalanceAlterInInternalUnits()).toDescriptionString(getChainDecimals()) + " for fee</small></small>";
} catch (Exception e) {
e.printStackTrace();
return "";
}
} else {
return "";
}
}
@Override
public String getBalanceCurrency() {
String currency = ctx.getCard().getTokenSymbol();
if (Strings.isNullOrEmpty(currency))
return "NoN";
if (hasBalanceInfo()) {
if (coinData.getBalanceInInternalUnits().notZero()) {
return currency;
} else {
return this.getBlockchain().getCurrency();
}
} else {
return currency;
}
}
@Override
public InputFilter[] getAmountInputFilters() {
if (!hasBalanceInfo()) return null;
if (coinData.getBalanceInInternalUnits().notZero()) {
return new InputFilter[]{new DecimalDigitsInputFilter(getTokenDecimals())};
} else {
return new InputFilter[]{new DecimalDigitsInputFilter(getChainDecimals())};
}
}
@Override
public String getFeeCurrency() {
return this.getBlockchain().getCurrency();
}
protected static int getChainDecimals() {
return 18;
}
protected int getTokenDecimals() {
return ctx.getCard().getTokensDecimal();
}
protected String getContractAddress(TangemCard card) {
return card.getContractAddress();
}
public boolean isNeedCheckNode() {
return false;
}
@Override
public boolean validateAddress(String address) {
if (address == null || address.isEmpty()) {
return false;
}
if (!address.startsWith("0x") && !address.startsWith("0X")) {
return false;
}
if (address.length() != 42) {
return false;
}
return true;
}
protected boolean isBalanceAlterNotZero() {
if (coinData == null) return false;
if (coinData.getBalanceAlterInInternalUnits() == null) return false;
return coinData.getBalanceAlterInInternalUnits().notZero();
}
@Override
public boolean isBalanceNotZero() {
if (coinData == null) return false;
if (coinData.getBalanceInInternalUnits() == null && coinData.getBalanceAlterInInternalUnits() == null)
return false;
return (coinData.getBalanceInInternalUnits() != null && coinData.getBalanceInInternalUnits().notZero() ) ||
(coinData.getBalanceAlterInInternalUnits() != null && coinData.getBalanceAlterInInternalUnits().notZero());
}
@Override
public String getBalanceEquivalent() {
if (!hasBalanceInfo()) {
return "";
}
try {
if (coinData.getBalanceInInternalUnits().notZero()) {
// TODO: check why Rate=EthRate
return "";//convertToAmount(coinData.getBalanceInInternalUnits()).toEquivalentString(coinData.getRate());
} else {
if (coinData.getBalanceAlterInInternalUnits() == null) return "";
return convertToAmount(coinData.getBalanceAlterInInternalUnits()).toEquivalentString(coinData.getRateAlter());
}
} catch (Exception e) {
e.printStackTrace();
return "";
}
}
@Override
public String calculateAddress(byte[] pkUncompressed) {
Keccak256 kec = new Keccak256();
int lenPk = pkUncompressed.length;
if (lenPk < 2) {
throw new IllegalArgumentException("Uncompress public key length is invalid");
}
byte[] cleanKey = new byte[lenPk - 1];
for (int i = 0; i < cleanKey.length; ++i) {
cleanKey[i] = pkUncompressed[i + 1];
}
byte[] r = kec.digest(cleanKey);
byte[] address = new byte[20];
for (int i = 0; i < 20; ++i) {
address[i] = r[i + 12];
}
return String.format("0x%s", BTCUtils.toHex(address));
}
@Override
public Amount convertToAmount(InternalAmount internalAmount) throws Exception {
if (internalAmount.getCurrency().equals("wei")) {
BigDecimal d = internalAmount.divide(new BigDecimal("1000000000000000000"), getChainDecimals(), RoundingMode.DOWN);
return new Amount(d, this.getBlockchain().getCurrency());
} else if (internalAmount.getCurrency().equals(ctx.getCard().getTokenSymbol())) {
BigDecimal p = new BigDecimal(10);
p = p.pow(getTokenDecimals());
BigDecimal d = internalAmount.divide(p);
return new Amount(d, ctx.getCard().getTokenSymbol());
}
throw new Exception(String.format("Can't convert '%s' to '%s'", internalAmount.getCurrency(), ctx.getCard().getTokenSymbol()));
}
@Override
public Amount convertToAmount(String strAmount, String currency) {
return new Amount(strAmount, currency);
}
@Override
public InternalAmount convertToInternalAmount(Amount amount) throws Exception {
if (amount.getCurrency().equals(this.getBlockchain().getCurrency())) {
BigDecimal d = amount.multiply(new BigDecimal("1000000000000000000"));
return new InternalAmount(d, "wei");
} else if (amount.getCurrency().equals(ctx.getCard().getTokenSymbol())) {
BigDecimal p = new BigDecimal(10);
p = p.pow(getTokenDecimals());
BigDecimal d = amount.multiply(p);
return new InternalAmount(d, ctx.getCard().getTokenSymbol());
}
throw new Exception(String.format("Can't convert '%s' to '%s'", amount.getCurrency(), ctx.getCard().getTokenSymbol()));
}
@Override
public InternalAmount convertToInternalAmount(byte[] bytes) throws Exception {
throw new Exception("Not implemented");
}
@Override
public byte[] convertToByteArray(InternalAmount amount) throws Exception {
throw new Exception("Not implemented");
}
@Override
public CoinData createCoinData() {
return new TokenData();
}
@Override
public String getUnspentInputsDescription() {
return "";
}
// @Override
// public String getFeeEquivalentDescriptor(String value) {
// BigDecimal d = new BigDecimal(value);
// return EthEngine.getAmountEquivalentDescription(d, coinData.getRateAlter());
// }
@Override
public boolean hasBalanceInfo() {
return coinData != null && coinData.getBalanceInInternalUnits() != null && coinData.getBalanceAlterInInternalUnits() != null;
}
@Override
public Uri getWalletExplorerUri() {
return Uri.parse("https://etherscan.io/token/" + getContractAddress(ctx.getCard()) + "?a=" + ctx.getCoinData().getWallet());
}
@Override
public Uri getShareWalletUri() {
if (ctx.getCard().getDenomination() != null) {
return Uri.parse("ethereum:" + ctx.getCoinData().getWallet());// + "?value=" + mCard.getDenomination() +"e18");
} else {
return Uri.parse("ethereum:" + ctx.getCoinData().getWallet());
}
}
@Override
public boolean isExtractPossible() {
if (!hasBalanceInfo()) {
ctx.setMessage(R.string.loaded_wallet_error_obtaining_blockchain_data);
} else if (!isBalanceNotZero()) {
ctx.setMessage(R.string.general_wallet_empty);
} else if (awaitingConfirmation()) {
ctx.setMessage(R.string.loaded_wallet_message_wait);
} else if (!isBalanceAlterNotZero()) {
ctx.setMessage(ctx.getString(R.string.confirm_transaction_error_not_enough_eth_for_fee));
} else {
return true;
}
return false;
}
@Override
public boolean checkNewTransactionAmount(Amount amount) {
if (!hasBalanceInfo()) return false;
Amount balance;
try {
if (amount.getCurrency().equals(ctx.getCard().tokenSymbol)) {
balance = convertToAmount(coinData.getBalanceInInternalUnits());
} else if (amount.getCurrency().equals(this.getBlockchain().getCurrency()) && coinData.getBalanceInInternalUnits().isZero()) {
balance = convertToAmount(coinData.getBalanceAlterInInternalUnits());
} else {
return false;
}
} catch (Exception e) {
e.printStackTrace();
return false;
}
return amount.compareTo(balance) <= 0;
}
@Override
public boolean checkNewTransactionAmountAndFee(Amount amount, Amount fee, Boolean isFeeIncluded) {
if (!hasBalanceInfo()) return false;
try {
Amount balanceETH = convertToAmount(coinData.getBalanceAlterInInternalUnits());
if (fee == null || amount == null || fee.isZero() || amount.isZero())
return false;
if (amount.getCurrency().equals(ctx.getCard().tokenSymbol)) {
// token transaction
if (fee.compareTo(balanceETH) > 0)
return false;
} else if (amount.getCurrency().equals(this.getBlockchain().getCurrency()) && coinData.getBalanceInInternalUnits().isZero()) {
// standard ETH transaction
// try {
if (isFeeIncluded && (amount.compareTo(balanceETH) > 0 || fee.compareTo(balanceETH) > 0))
return false;
if (!isFeeIncluded && amount.add(fee).compareTo(balanceETH) > 0)
return false;
// } catch (NumberFormatException e) {
// e.printStackTrace();
// }
} else {
return false;
}
} catch (Exception e) {
e.printStackTrace();
return false;
}
return true;
}
@Override
public boolean validateBalance(BalanceValidator balanceValidator) {
if (getBalance() == null) {
balanceValidator.setScore(0);
balanceValidator.setFirstLine(R.string.balance_validator_first_line_unknown_balance);
balanceValidator.setSecondLine(R.string.balance_validator_second_line_unverified_balance);
return false;
}
if (!coinData.getUnconfirmedTXCount().equals(coinData.getConfirmedTXCount())) {
balanceValidator.setScore(0);
balanceValidator.setFirstLine(R.string.balance_validator_first_line_transaction_in_progress);
balanceValidator.setSecondLine(R.string.balance_validator_second_line_wait_for_confirmation);
return false;
}
if (coinData.isBalanceReceived()) {
balanceValidator.setScore(100);
balanceValidator.setFirstLine(R.string.balance_validator_first_line_verified_balance);
balanceValidator.setSecondLine(R.string.balance_validator_second_line_confirmed_in_blockchain);
if (getBalance().isZero()) {
balanceValidator.setFirstLine(R.string.balance_validator_first_line_empty_wallet);
balanceValidator.setSecondLine(R.string.empty_string);
}
}
if ((ctx.getCard().getOfflineBalance() != null) && !coinData.isBalanceReceived() && (ctx.getCard().getRemainingSignatures() == ctx.getCard().getMaxSignatures()) && getBalance().notZero()) {
balanceValidator.setScore(80);
balanceValidator.setFirstLine(R.string.balance_validator_first_line_verified_offline);
balanceValidator.setSecondLine(R.string.balance_validator_second_line_internet_to_verify_online);
}
return true;
}
@Override
public String evaluateFeeEquivalent(String fee) {
try {
Amount feeValue = new Amount(fee, getFeeCurrency());
return feeValue.toEquivalentString(coinData.getRate());
} catch (Exception e) {
e.printStackTrace();
return "";
}
//
// BigDecimal gweFee = new BigDecimal(fee);
// gweFee = gweFee.divide(new BigDecimal("1000000000"));
// gweFee = gweFee.setScale(18, RoundingMode.DOWN);
// return getFeeEquivalentDescriptor(mCard, gweFee.toString());
}
@Override
public SignTask.TransactionToSign constructTransaction(Amount amountValue, Amount feeValue, boolean IncFee, String targetAddress) throws Exception {
if (amountValue.getCurrency().equals(this.getBlockchain().getCurrency())) {
return constructTransactionCoin(feeValue, amountValue, IncFee, targetAddress);
} else {
return constructTransactionToken(feeValue, amountValue, IncFee, targetAddress);
}
}
protected SignTask.TransactionToSign constructTransactionCoin(Amount feeValue, Amount amountValue, boolean IncFee, String targetAddress) throws Exception {
Log.e(TAG, "Construct " + this.getBlockchain().getCurrency() + " payment " + amountValue.toString() + " with fee " + feeValue.toString() + (IncFee ? " including" : " excluding"));
BigInteger nonceValue = coinData.getConfirmedTXCount();
byte[] pbKey = ctx.getCard().getWalletPublicKey();
BigInteger weiFee = convertToInternalAmount(feeValue).toBigIntegerExact();
BigInteger weiAmount = convertToInternalAmount(amountValue).toBigIntegerExact();
if (IncFee) {
weiAmount = weiAmount.subtract(weiFee);
}
BigInteger gasPrice = weiFee.divide(BigInteger.valueOf(21000));
BigInteger gasLimit = BigInteger.valueOf(21000);
Integer chainId = this.getChainIdNum(); // Token support on main net only!!!
String to = targetAddress;
if (to.startsWith("0x") || to.startsWith("0X")) {
to = to.substring(2);
}
final EthTransaction tx = EthTransaction.create(to, weiAmount, nonceValue, gasPrice, gasLimit, chainId);
return new SignTask.TransactionToSign() {
@Override
public boolean isSigningMethodSupported(TangemCard.SigningMethod signingMethod) {
return signingMethod == TangemCard.SigningMethod.Sign_Hash;
}
@Override
public byte[][] getHashesToSign() {
byte[][] hashesForSign = new byte[1][];
hashesForSign[0] = tx.getRawHash();
return hashesForSign;
}
@Override
public byte[] getRawDataToSign() throws Exception {
throw new Exception("Signing of raw transaction not supported for " + this.getClass().getSimpleName());
}
@Override
public String getHashAlgToSign() throws Exception {
throw new Exception("Signing of raw transaction not supported for " + this.getClass().getSimpleName());
}
@Override
public byte[] getIssuerTransactionSignature(byte[] dataToSignByIssuer) throws Exception {
throw new Exception("Transaction validation by issuer not supported in this version");
}
@Override
public byte[] onSignCompleted(byte[] signFromCard) throws Exception {
byte[] for_hash = tx.getRawHash();
BigInteger r = new BigInteger(1, Arrays.copyOfRange(signFromCard, 0, 32));
BigInteger s = new BigInteger(1, Arrays.copyOfRange(signFromCard, 32, 64));
s = CryptoUtil.toCanonicalised(s);
boolean f = ECKey.verify(for_hash, new ECKey.ECDSASignature(r, s), pbKey);
if (!f) {
Log.e(this.getClass().getSimpleName() + "-CHECK", "sign Failed.");
}
tx.signature = new ECDSASignatureETH(r, s);
int v = tx.BruteRecoveryID2(tx.signature, for_hash, pbKey);
if (v != 27 && v != 28) {
Log.e(TAG, "invalid v");
throw new Exception("Error in " + this.getClass().getSimpleName() + " - invalid v");
}
tx.signature.v = (byte) v;
Log.e(TAG, this.getClass().getSimpleName() + " V: " + String.valueOf(v));
byte[] txForSend = tx.getEncoded();
notifyOnNeedSendTransaction(txForSend);
return txForSend;
}
};
}
protected SignTask.TransactionToSign constructTransactionToken(Amount feeValue, Amount amountValue, boolean IncFee, String targetAddress) throws Exception {
Log.e(TAG, "Construct TOKEN transaction " + amountValue.toString() + " with fee " + feeValue.toString() + (IncFee ? " including" : " excluding"));
BigInteger nonceValue = coinData.getConfirmedTXCount();
byte[] pbKey = ctx.getCard().getWalletPublicKey();
// boolean flag = (ctx.getCard().getSigningMethod() == TangemCard.SigningMethod.Sign_Hash_Validated_By_Issuer);
// Issuer issuer = ctx.getCard().getIssuer();
// BigInteger gigaK = BigInteger.valueOf(1000000000L);
BigInteger weiFee = convertToInternalAmount(feeValue).toBigIntegerExact();
InternalAmount amountDec = convertToInternalAmount(amountValue);
BigInteger amount = amountDec.toBigInteger(); //new BigInteger(amountValue, 10);
int gasLimitInt = 60000;
if (amountValue.getCurrency().equals("DGX")) {
gasLimitInt = 300000;
}
BigInteger gasPrice = weiFee.divide(BigInteger.valueOf(gasLimitInt));
BigInteger gasLimit = BigInteger.valueOf(gasLimitInt);
Integer chainId = this.getChainIdNum();
BigInteger amountZero = BigInteger.ZERO;
String to = targetAddress;
if (to.startsWith("0x") || to.startsWith("0X")) {
to = to.substring(2);
}
String contractAddress = getContractAddress(ctx.getCard());
if (contractAddress.startsWith("0x") || contractAddress.startsWith("0X")) {
contractAddress = contractAddress.substring(2);
}
String amountLeadZero = amount.toString(16);
if (amountLeadZero.startsWith("0x") || amountLeadZero.startsWith("0X")) {
amountLeadZero = amountLeadZero.substring(2);
}
while (amountLeadZero.length() < 64) {
amountLeadZero = "0" + amountLeadZero;
}
String cmd = "a9059cbb000000000000000000000000" + to + amountLeadZero; //TODO only for BAT
byte[] data = BTCUtils.fromHex(cmd);
EthTransaction tx = EthTransaction.create(contractAddress, amountZero, nonceValue, gasPrice, gasLimit, chainId, data);
return new SignTask.TransactionToSign() {
@Override
public boolean isSigningMethodSupported(TangemCard.SigningMethod signingMethod) {
return signingMethod == TangemCard.SigningMethod.Sign_Hash;
}
@Override
public byte[][] getHashesToSign() {
byte[][] hashesForSign = new byte[1][];
hashesForSign[0] = tx.getRawHash();
return hashesForSign;
}
@Override
public byte[] getRawDataToSign() throws Exception {
throw new Exception("Signing of raw transaction not supported for " + this.getClass().getSimpleName());
}
@Override
public String getHashAlgToSign() throws Exception {
throw new Exception("Signing of raw transaction not supported for " + this.getClass().getSimpleName());
}
@Override
public byte[] getIssuerTransactionSignature(byte[] dataToSignByIssuer) throws Exception {
throw new Exception("Transaction validation by issuer not supported in this version");
}
@Override
public byte[] onSignCompleted(byte[] signFromCard) throws Exception {
byte[] for_hash = tx.getRawHash();
BigInteger r = new BigInteger(1, Arrays.copyOfRange(signFromCard, 0, 32));
BigInteger s = new BigInteger(1, Arrays.copyOfRange(signFromCard, 32, 64));
s = CryptoUtil.toCanonicalised(s);
boolean f = ECKey.verify(for_hash, new ECKey.ECDSASignature(r, s), pbKey);
if (!f) {
Log.e(this.getClass().getSimpleName() + "-CHECK", "sign Failed.");
}
tx.signature = new ECDSASignatureETH(r, s);
int v = tx.BruteRecoveryID2(tx.signature, for_hash, pbKey);
if (v != 27 && v != 28) {
Log.e(TAG, "invalid v");
throw new Exception("Error in " + this.getClass().getSimpleName() + " - invalid v");
}
tx.signature.v = (byte) v;
Log.e(TAG, this.getClass().getSimpleName() + " V: " + String.valueOf(v));
byte[] txForSend = tx.getEncoded();
notifyOnNeedSendTransaction(txForSend);
return txForSend;
}
};
}
@Override
public void requestBalanceAndUnspentTransactions(BlockchainRequestsCallbacks blockchainRequestsCallbacks) {
final ServerApiInfura serverApiInfura = new ServerApiInfura();
final ServerApiBlockcypher serverApiBlockcypher = new ServerApiBlockcypher();
ServerApiInfura.ResponseListener responseListener = new ServerApiInfura.ResponseListener() {
@Override
public void onSuccess(String method, InfuraResponse infuraResponse) {
switch (method) {
case ServerApiInfura.INFURA_ETH_GET_BALANCE: {
String balanceCap = infuraResponse.getResult();
balanceCap = balanceCap.substring(2);
BigInteger l = new BigInteger(balanceCap, 16);
coinData.setBalanceReceived(true);
coinData.setBalanceAlterInInternalUnits(new CoinEngine.InternalAmount(l, "wei"));
// Log.i("$TAG eth_get_balance", balanceCap)
}
break;
case ServerApiInfura.INFURA_ETH_GET_TRANSACTION_COUNT: {
String nonce = infuraResponse.getResult();
nonce = nonce.substring(2);
BigInteger count = new BigInteger(nonce, 16);
coinData.setConfirmedTXCount(count);
// Log.i("$TAG eth_getTransCount", nonce)
}
break;
case ServerApiInfura.INFURA_ETH_GET_PENDING_COUNT: {
String pending = infuraResponse.getResult();
pending = pending.substring(2);
BigInteger count = new BigInteger(pending, 16);
coinData.setUnconfirmedTXCount(count);
// Log.i("$TAG eth_getPendingTxCount", pending)
}
break;
//
case ServerApiInfura.INFURA_ETH_CALL: {
try {
String balanceCap = infuraResponse.getResult();
balanceCap = balanceCap.substring(2);
BigInteger l = new BigInteger(balanceCap, 16);
coinData.setBalanceInInternalUnits(new CoinEngine.InternalAmount(l, ctx.getCard().tokenSymbol));
// Log.i("$TAG eth_call", balanceCap)
if (blockchainRequestsCallbacks.allowAdvance()) {
serverApiInfura.requestData(ServerApiInfura.INFURA_ETH_GET_BALANCE, 67, coinData.getWallet(), "", "");
serverApiInfura.requestData(ServerApiInfura.INFURA_ETH_GET_TRANSACTION_COUNT, 67, coinData.getWallet(), "", "");
serverApiInfura.requestData(ServerApiInfura.INFURA_ETH_GET_PENDING_COUNT, 67, coinData.getWallet(), "", "");
} else {
ctx.setError("Terminated by user");
}
} catch (Exception e) {
e.printStackTrace();
}
}
break;
}
if (serverApiInfura.isRequestsSequenceCompleted()&& serverApiBlockcypher.isRequestsSequenceCompleted()) {
blockchainRequestsCallbacks.onComplete(!ctx.hasError());
} else {
blockchainRequestsCallbacks.onProgress();
}
}
@Override
public void onFail(String method, String message) {
Log.e(TAG, "onFail: " + method + " " + message);
ctx.setError(message);
if (serverApiInfura.isRequestsSequenceCompleted()&& serverApiBlockcypher.isRequestsSequenceCompleted()) {
blockchainRequestsCallbacks.onComplete(false);
} else {
blockchainRequestsCallbacks.onProgress();
}
}
};
serverApiInfura.setResponseListener(responseListener);
ServerApiBlockcypher.ResponseListener blockcypherListener = new ServerApiBlockcypher.ResponseListener() {
@Override
public void onSuccess(String method, BlockcypherResponse blockcypherResponse) {
Log.i(TAG, "onSuccess: " + method);
try {
//TODO: change request logic, 2000 tx max
if (blockcypherResponse.getTxrefs() != null) {
for (BlockcypherTxref txref : blockcypherResponse.getTxrefs()) {
if (txref.getTx_input_n() != -1) { //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) {
e.printStackTrace();
Log.e(TAG, "FAIL BLOCKCYPHER_ADDRESS Exception");
}
if (serverApiInfura.isRequestsSequenceCompleted()&& serverApiBlockcypher.isRequestsSequenceCompleted()) {
blockchainRequestsCallbacks.onComplete(!ctx.hasError());
} else {
blockchainRequestsCallbacks.onProgress();
}
}
public void onSuccess(String method, BlockcypherFee blockcypherFee) {
Log.e(TAG, "Wrong response type for requestBalanceAndUnspentTransactions");
}
@Override
public void onFail(String method, String message) {
Log.i(TAG, "onFail: " + method + " " + message);
}
};
serverApiBlockcypher.setResponseListener(blockcypherListener);
if (validateAddress(getContractAddress(ctx.getCard()))) {
serverApiInfura.requestData(ServerApiInfura.INFURA_ETH_CALL, 67, coinData.getWallet(), getContractAddress(ctx.getCard()), "");
} else {
ctx.setError("Smart contract address not defined");
blockchainRequestsCallbacks.onComplete(false);
}
serverApiBlockcypher.requestData(ctx.getBlockchain().getID(), ServerApiBlockcypher.BLOCKCYPHER_ADDRESS, ctx.getCoinData().getWallet(), "");
}
@Override
public void requestFee(BlockchainRequestsCallbacks blockchainRequestsCallbacks, String targetAddress, Amount amount) {
ServerApiInfura serverApiInfura = new ServerApiInfura();
// request requestData eth gasPrice listener
ServerApiInfura.ResponseListener responseListener = new ServerApiInfura.ResponseListener() {
@Override
public void onSuccess(String method, InfuraResponse infuraResponse) {
String gasPrice = infuraResponse.getResult();
gasPrice = gasPrice.substring(2);
// rounding gas price to integer gwei
BigInteger l = new BigInteger(gasPrice, 16);
Log.i(TAG, "Infura gas price: " + gasPrice + " (" + l.toString() + ")");
BigInteger m;
if (!amount.getCurrency().equals(Blockchain.Ethereum.getCurrency()))
if (amount.getCurrency().equals("DGX")) {
m = BigInteger.valueOf(300000);
} else {
m = BigInteger.valueOf(60000);
}
else m = BigInteger.valueOf(21000);
Log.i(TAG, "fee multiplier: " + m.toString());
CoinEngine.InternalAmount weiMinFee = new CoinEngine.InternalAmount(l.multiply(m), "wei");
CoinEngine.InternalAmount weiNormalFee = new CoinEngine.InternalAmount(l.multiply(BigInteger.valueOf(12)).divide(BigInteger.valueOf(10)).multiply(m), "wei");
CoinEngine.InternalAmount weiMaxFee = new CoinEngine.InternalAmount(l.multiply(BigInteger.valueOf(15)).divide(BigInteger.valueOf(10)).multiply(m), "wei");
Log.i(TAG, "min fee : " + weiMinFee.toValueString() + " wei");
Log.i(TAG, "normal fee: " + weiNormalFee.toValueString() + " wei");
Log.i(TAG, "max fee : " + weiMaxFee.toValueString() + " wei");
try {
coinData.minFee = convertToAmount(weiMinFee);
coinData.normalFee = convertToAmount(weiNormalFee);
coinData.maxFee = convertToAmount(weiMaxFee);
Log.i(TAG, "min fee : " + coinData.minFee.toString());
Log.i(TAG, "normal fee: " + coinData.normalFee.toString());
Log.i(TAG, "max fee : " + coinData.maxFee.toString());
} catch (Exception e) {
e.printStackTrace();
}
blockchainRequestsCallbacks.onComplete(true);
}
@Override
public void onFail(String method, String message) {
ctx.setError(message);
blockchainRequestsCallbacks.onComplete(false);
}
};
serverApiInfura.setResponseListener(responseListener);
serverApiInfura.requestData(ServerApiInfura.INFURA_ETH_GAS_PRICE, 67, coinData.getWallet(), "", "");
}
@Override
public void requestSendTransaction(BlockchainRequestsCallbacks blockchainRequestsCallbacks, byte[] txForSend) {
String txStr = String.format("0x%s", BTCUtils.toHex(txForSend));
ServerApiInfura serverApiInfura = new ServerApiInfura();
// request requestData eth gasPrice listener
ServerApiInfura.ResponseListener responseListener = new ServerApiInfura.ResponseListener() {
@Override
public void onSuccess(String method, InfuraResponse infuraResponse) {
if (method.equals(ServerApiInfura.INFURA_ETH_SEND_RAW_TRANSACTION)) {
if (infuraResponse.getResult()==null || infuraResponse.getResult().isEmpty()) {
ctx.setError("Rejected by node: " + infuraResponse.getError());
blockchainRequestsCallbacks.onComplete(false);
} else {
BigInteger nonce = coinData.getConfirmedTXCount();
nonce = nonce.add(BigInteger.valueOf(1));
coinData.setConfirmedTXCount(nonce);
ctx.setError(null);
blockchainRequestsCallbacks.onComplete(true);
}
}
}
@Override
public void onFail(String method, String message) {
if (method.equals(ServerApiInfura.INFURA_ETH_SEND_RAW_TRANSACTION)) {
ctx.setError(message);
blockchainRequestsCallbacks.onComplete(false);
}
}
};
serverApiInfura.setResponseListener(responseListener);
serverApiInfura.requestData(ServerApiInfura.INFURA_ETH_SEND_RAW_TRANSACTION, 67, coinData.getWallet(), "", txStr);
}
@Override
public boolean needMultipleLinesForBalance() {
return true;
}
@Override
public boolean allowSelectFeeInclusion() {
return getBalance().getCurrency().equals(Blockchain.Ethereum.getCurrency());
}
public int pendingTransactionTimeoutInSeconds() { return 10; }
}