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Updated on 2026-08-14

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Tangem 2019-02-05 18:21:35 +03:00
parent 49d6521bc5
commit a9e43ac45b
10 changed files with 447 additions and 49 deletions
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1
app/src/main/java/com/tangem/data/Blockchain.java
View file

@ -12,6 +12,7 @@ public enum Blockchain {
Ethereum("ETH", "ETH", 1.0, R.drawable.ic_logo_ethereum, "Ethereum"),
EthereumTestNet("ETH/test", "ETH", 1.0, R.drawable.ic_logo_ethereum_testnet, "Ethereum Testnet"),
Token("Token", "ETH", 1.0, R.drawable.ic_logo_bat_token, "Ethereum"),
NftToken("NftToken", "", 1.0, R.drawable.ic_logo_bat_token, "Ethereum"),
BitcoinCash("BCH", "BCH", 100000000.0, R.drawable.ic_logo_bitcoin_cash, "Bitcoin Cash"),
Litecoin("LTC", "LTC", 100000000.0, R.drawable.ic_logo_bitcoin, "Litecoin"),
Rootstock("RSK", "RBTC", 1.0, R.drawable.ic_logo_bitcoin, "Rootstock"),

4
app/src/main/java/com/tangem/domain/wallet/CoinEngine.java
View file

@ -361,5 +361,9 @@ public abstract class CoinEngine {
return true;
}
public boolean isNftToken() {
return false;
}
}

4
app/src/main/java/com/tangem/domain/wallet/CoinEngineFactory.kt
View file

@ -8,6 +8,7 @@ import com.tangem.domain.wallet.token.TokenEngine
import com.tangem.domain.wallet.bch.BtcCashEngine
import com.tangem.data.Blockchain
import com.tangem.domain.wallet.ltc.LtcEngine
import com.tangem.domain.wallet.nftToken.NftTokenEngine
import com.tangem.domain.wallet.rsk.RskEngine
import com.tangem.domain.wallet.rsk.RskTokenEngine
@ -28,6 +29,7 @@ object CoinEngineFactory {
Blockchain.BitcoinCash -> BtcCashEngine()
Blockchain.Ethereum, Blockchain.EthereumTestNet -> EthEngine()
Blockchain.Token -> TokenEngine()
Blockchain.NftToken -> NftTokenEngine()
Blockchain.Litecoin -> LtcEngine()
Blockchain.Rootstock -> RskEngine()
Blockchain.RootstockToken -> RskTokenEngine()
@ -47,6 +49,8 @@ object CoinEngineFactory {
EthEngine(context)
else if (Blockchain.Token == context.blockchain)
TokenEngine(context)
else if (Blockchain.NftToken == context.blockchain)
NftTokenEngine(context)
else if (Blockchain.Litecoin == context.blockchain)
LtcEngine(context)
else if (Blockchain.Rootstock == context.blockchain)

39
app/src/main/java/com/tangem/domain/wallet/TangemContext.java
View file

@ -11,7 +11,7 @@ import com.tangem.tangemcard.data.TangemCardExtensionsKt;
public class TangemContext {
// public static final String EXTRA_BLOCKCHAIN_DATA = "BLOCKCHAIN_DATA";
// public static final String EXTRA_BLOCKCHAIN_DATA = "BLOCKCHAIN_DATA";
private Context context;
private TangemCard card;
private CoinData coinData;
@ -28,13 +28,15 @@ public class TangemContext {
public Blockchain getBlockchain() {
if (card == null) return Blockchain.Unknown;
Blockchain blockchain=Blockchain.fromId(card.getBlockchainID());
if( (blockchain==Blockchain.Ethereum || blockchain==Blockchain.EthereumTestNet)&& card.isToken() )
{
return Blockchain.Token;
Blockchain blockchain = Blockchain.fromId(card.getBlockchainID());
if ((blockchain == Blockchain.Ethereum || blockchain == Blockchain.EthereumTestNet) && card.isToken()) {
if (card.getTokenSymbol().startsWith("NFT:")) {
return Blockchain.NftToken;
} else {
return Blockchain.Token;
}
}
if( (blockchain==Blockchain.Rootstock)&& card.isToken() )
{
if ((blockchain == Blockchain.Rootstock) && card.isToken()) {
return Blockchain.RootstockToken;
}
return blockchain;
@ -48,13 +50,15 @@ public class TangemContext {
// private String blockchainName = "";
public String getBlockchainName() {
Blockchain blockchain=getBlockchain();
if( blockchain==Blockchain.Token || blockchain==Blockchain.RootstockToken ) {
Blockchain blockchain = getBlockchain();
if (blockchain == Blockchain.Token || blockchain == Blockchain.RootstockToken) {
String token = card.getTokenSymbol();
return token + " <br><small><small> " + getBlockchain().getOfficialName() + " smart contract token</small></small>";
}else {
return blockchain.getOfficialName();
}
if (blockchain == Blockchain.NftToken) {
return card.getTokenSymbol().substring(4) + " <br><small><small> " + getBlockchain().getOfficialName() + " smart contract token</small></small>";
}
return blockchain.getOfficialName();
}
public Context getContext() {
@ -84,6 +88,7 @@ public class TangemContext {
public void setError(String error) {
this.error = error;
}
public void setError(int valueId) {
this.error = getString(valueId);
}
@ -93,7 +98,7 @@ public class TangemContext {
}
public boolean hasError() {
return error!=null && !error.isEmpty();
return error != null && !error.isEmpty();
}
public void setMessage(String value) {
@ -154,13 +159,13 @@ public class TangemContext {
public void setDenomination(byte[] denomination) {
try {
CoinEngine engine= CoinEngineFactory.INSTANCE.create(getBlockchain());
CoinEngine.InternalAmount internalAmount=engine.convertToInternalAmount(denomination);
CoinEngine.Amount amount=engine.convertToAmount(internalAmount);
card.setDenomination(denomination,amount.toString());
CoinEngine engine = CoinEngineFactory.INSTANCE.create(getBlockchain());
CoinEngine.InternalAmount internalAmount = engine.convertToInternalAmount(denomination);
CoinEngine.Amount amount = engine.convertToAmount(internalAmount);
card.setDenomination(denomination, amount.toString());
} catch (Exception e) {
e.printStackTrace();
card.setDenomination(denomination,"N/A");
card.setDenomination(denomination, "N/A");
}
}

359
app/src/main/java/com/tangem/domain/wallet/nftToken/NftTokenEngine.java Normal file
View file

@ -0,0 +1,359 @@
package com.tangem.domain.wallet.nftToken;
import android.net.Uri;
import android.os.Bundle;
import android.text.InputFilter;
import android.util.Log;
import com.tangem.data.Blockchain;
import com.tangem.data.network.ServerApiInfura;
import com.tangem.data.network.model.InfuraResponse;
import com.tangem.domain.wallet.BTCUtils;
import com.tangem.domain.wallet.BalanceValidator;
import com.tangem.domain.wallet.CoinData;
import com.tangem.domain.wallet.CoinEngine;
import com.tangem.domain.wallet.Keccak256;
import com.tangem.domain.wallet.TangemContext;
import com.tangem.domain.wallet.eth.EthData;
import com.tangem.domain.wallet.token.TokenData;
import com.tangem.tangemcard.data.TangemCard;
import com.tangem.tangemcard.tasks.SignTask;
import com.tangem.wallet.R;
import java.math.BigInteger;
public class NftTokenEngine extends CoinEngine {
private static final String TAG = NftTokenEngine.class.getSimpleName();
public TokenData coinData = null;
public NftTokenEngine(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 NftTokenEngine() {
super();
}
public Blockchain getBlockchain() {
return Blockchain.NftToken;
}
@Override
public boolean awaitingConfirmation() {
return false;
}
@Override
public String getBalanceHTML() {
if (hasBalanceInfo()) {
if (isBalanceNotZero()) {
return "AUTHENTIC";// + getBalanceCurrency();
} else {
return "NOT FOUND";
}
} else {
return "";
}
}
@Override
public String getBalanceCurrency() {
return ctx.getCard().getTokenSymbol().substring(4);
}
@Override
public InputFilter[] getAmountInputFilters() {
return new InputFilter[0];
}
@Override
public String getOfflineBalanceHTML() {
return ctx.getString(R.string.not_implemented);
}
protected String getContractAddress(TangemCard card) {
return card.getContractAddress();
}
public boolean isNeedCheckNode() {
return false;
}
@Override
public String getBalanceEquivalent() {
return null;
}
@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;
}
@Override
public boolean isBalanceNotZero() {
if (coinData == null) return false;
if (coinData.getBalanceInInternalUnits() == null) return false;
return coinData.getBalanceInInternalUnits().notZero();
}
@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 {
throw new Exception("Not implemented");
}
@Override
public Amount convertToAmount(String strAmount, String currency) {
return null;
}
@Override
public InternalAmount convertToInternalAmount(Amount amount) throws Exception {
throw new Exception("Not implemented");
}
@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 boolean hasBalanceInfo() {
return coinData != null && coinData.getBalanceInInternalUnits() != null;
}
@Override
public Uri getWalletExplorerUri() {
return Uri.parse("https://etherscan.io/token/" + getContractAddress(ctx.getCard()) + "?a=" + ctx.getCoinData().getWallet());
}
@Override
public Uri getShareWalletUri() {
return Uri.parse("ethereum:" + ctx.getCoinData().getWallet());
}
@Override
public boolean isExtractPossible() {
return false;
}
@Override
public boolean checkNewTransactionAmount(Amount amount) {
return false;
}
@Override
public boolean checkNewTransactionAmountAndFee(Amount amount, Amount fee, Boolean isFeeIncluded) {
return false;
}
@Override
public boolean validateBalance(BalanceValidator balanceValidator) {
if (coinData.getBalanceInInternalUnits() == null) {
balanceValidator.setScore(0);
balanceValidator.setFirstLine("No connection");
balanceValidator.setSecondLine("Authenticity cannot be verified. Swipe down to refresh.");
return false;
}
if (coinData.isBalanceReceived()) {
if (isBalanceNotZero()) {
balanceValidator.setScore(100);
balanceValidator.setFirstLine("Verified in blockchain");
balanceValidator.setSecondLine("");
} else {
balanceValidator.setScore(0);
balanceValidator.setFirstLine("Authenticity was not verified");
balanceValidator.setSecondLine("");
}
}
return true;
}
@Override
public Amount getBalance() {
return null;
}
@Override
public String evaluateFeeEquivalent(String fee) {
return null;
}
@Override
public String getFeeCurrency() {
return null;
}
@Override
public SignTask.TransactionToSign constructTransaction(Amount amountValue, Amount feeValue, boolean IncFee, String targetAddress) throws Exception {
throw new Exception("Not implemented");
}
@Override
public void requestBalanceAndUnspentTransactions(BlockchainRequestsCallbacks blockchainRequestsCallbacks) {
final ServerApiInfura serverApiInfura = new ServerApiInfura();
// request requestData listener
ServerApiInfura.ResponseListener responseListener = new ServerApiInfura.ResponseListener() {
@Override
public void onSuccess(String method, InfuraResponse infuraResponse) {
try {
if (validateAddress(getContractAddress(ctx.getCard()))) {
String balanceCap = infuraResponse.getResult();
balanceCap = balanceCap.substring(2);
BigInteger l = new BigInteger(balanceCap, 16);
coinData.setBalanceInInternalUnits(new InternalAmount(l, ctx.getCard().tokenSymbol));
coinData.setBalanceReceived(true);
// Log.i("$TAG eth_call", balanceCap)
} else {
ctx.setError("Smart contract address not defined");
}
} catch (Exception e) {
e.printStackTrace();
}
blockchainRequestsCallbacks.onComplete(!ctx.hasError());
}
@Override
public void onFail(String method, String message) {
if (!serverApiInfura.isRequestsSequenceCompleted()) {
ctx.setError(message);
blockchainRequestsCallbacks.onComplete(false);
}
}
};
serverApiInfura.setResponseListener(responseListener);
serverApiInfura.requestData(ServerApiInfura.INFURA_ETH_CALL, 67, coinData.getWallet(), getContractAddress(ctx.getCard()), "");
}
@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()))
m = BigInteger.valueOf(60000);
else m = BigInteger.valueOf(21000);
Log.i(TAG, "fee multiplier: " + m.toString());
InternalAmount weiMinFee = new InternalAmount(l.multiply(m), "wei");
InternalAmount weiNormalFee = new InternalAmount(l.multiply(BigInteger.valueOf(12)).divide(BigInteger.valueOf(10)).multiply(m), "wei");
InternalAmount weiMaxFee = new 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) {
}
public boolean isNftToken() {
return true;
}
}

21
app/src/main/java/com/tangem/domain/wallet/rsk/RskTokenEngine.java
View file

@ -39,7 +39,7 @@ public class RskTokenEngine extends TokenEngine {
@Override
public Uri getWalletExplorerUri() {
return Uri.parse("https://explorer.rsk.co/address/" + ctx.getCoinData().getWallet());
return Uri.parse("https://explorer.rsk.co/address/" + ctx.getCoinData().getWallet() + "?__tab=tokens");
} // Only RSK explorer for now
@Override
@ -105,15 +105,11 @@ public class RskTokenEngine extends TokenEngine {
//
case ServerApiRootstock.ROOTSTOCK_ETH_CALL: {
try {
if (validateAddress(getContractAddress(ctx.getCard()))) {
String balanceCap = rootstockResponse.getResult();
balanceCap = balanceCap.substring(2);
BigInteger l = new BigInteger(balanceCap, 16);
coinData.setBalanceInInternalUnits(new CoinEngine.InternalAmount(l, ctx.getCard().tokenSymbol));
String balanceCap = rootstockResponse.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)
} else {
ctx.setError("Smart contract address not defined");
}
if (blockchainRequestsCallbacks.allowAdvance()) {
serverApiRootstock.requestData(ServerApiRootstock.ROOTSTOCK_ETH_GET_BALANCE, 67, coinData.getWallet(), "", "");
@ -147,7 +143,12 @@ public class RskTokenEngine extends TokenEngine {
};
serverApiRootstock.setResponseListener(responseListener);
serverApiRootstock.requestData(ServerApiRootstock.ROOTSTOCK_ETH_CALL, 67, coinData.getWallet(), getContractAddress(ctx.getCard()), "");
if (validateAddress(getContractAddress(ctx.getCard()))) {
serverApiRootstock.requestData(ServerApiRootstock.ROOTSTOCK_ETH_CALL, 67, coinData.getWallet(), getContractAddress(ctx.getCard()), "");
} else {
ctx.setError("Smart contract address not defined");
blockchainRequestsCallbacks.onComplete(false);
}
}
@Override

21
app/src/main/java/com/tangem/domain/wallet/token/TokenEngine.java
View file

@ -679,15 +679,13 @@ public class TokenEngine extends CoinEngine {
//
case ServerApiInfura.INFURA_ETH_CALL: {
try {
if (validateAddress(getContractAddress(ctx.getCard()))) {
String balanceCap = infuraResponse.getResult();
balanceCap = balanceCap.substring(2);
BigInteger l = new BigInteger(balanceCap, 16);
coinData.setBalanceInInternalUnits(new CoinEngine.InternalAmount(l, ctx.getCard().tokenSymbol));
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)
} else {
ctx.setError("Smart contract address not defined");
}
if (blockchainRequestsCallbacks.allowAdvance()) {
serverApiInfura.requestData(ServerApiInfura.INFURA_ETH_GET_BALANCE, 67, coinData.getWallet(), "", "");
@ -721,7 +719,12 @@ public class TokenEngine extends CoinEngine {
};
serverApiInfura.setResponseListener(responseListener);
serverApiInfura.requestData(ServerApiInfura.INFURA_ETH_CALL, 67, coinData.getWallet(), getContractAddress(ctx.getCard()), "");
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);
}
}
@Override

8
app/src/main/java/com/tangem/presentation/fragment/LoadedWallet.kt
View file

@ -620,6 +620,13 @@ class LoadedWallet : androidx.fragment.app.Fragment(), NfcAdapter.ReaderCallback
btnExtract.backgroundTintList = inactiveColor
}
if (engine.isNftToken) {
btnLoad.isEnabled = false
btnLoad.backgroundTintList = inactiveColor
btnExtract.isEnabled = false
btnExtract.backgroundTintList = inactiveColor
}
// //TODO why ???
// ctx.error = null
// ctx.message = null
@ -714,6 +721,7 @@ class LoadedWallet : androidx.fragment.app.Fragment(), NfcAdapter.ReaderCallback
Blockchain.Ethereum -> "ethereum"
Blockchain.EthereumTestNet -> "ethereum"
Blockchain.Token -> "ethereum"
Blockchain.NftToken -> "ethereum"
Blockchain.BitcoinCash -> "bitcoin-cash"
Blockchain.Litecoin -> "litecoin"
Blockchain.Rootstock -> "bitcoin"