GiftedHacker/tangem-app-android-audited
1
0
Fork 0
Code Issues Pull requests Projects Releases 1 Packages Wiki Activity Actions

Updated on 2026-08-14

Browse source
This commit is contained in:
Tangem 2020-07-20 22:58:59 +03:00
parent 5ff859d0a9
commit 0a6264c1f9
20 changed files with 736 additions and 105 deletions
Download patch file Download diff file Expand all files Collapse all files

91
app/src/main/java/com/tangem/wallet/cardano/CardanoEngine.java
View file

@ -9,10 +9,14 @@ import com.tangem.App;
import com.tangem.Constant;
import com.tangem.data.local.PendingTransactionsStorage;
import com.tangem.data.network.ServerApiAdalite;
import com.tangem.data.network.ServerApiBlockcypher;
import com.tangem.data.network.ServerApiPayId;
import com.tangem.data.network.model.AdaliteResponse;
import com.tangem.data.network.model.AdaliteResponseUtxo;
import com.tangem.data.network.model.AdaliteTxData;
import com.tangem.data.network.model.AdaliteUtxoData;
import com.tangem.data.network.model.PayIdAddress;
import com.tangem.data.network.model.PayIdResponse;
import com.tangem.tangem_card.data.TangemCard;
import com.tangem.tangem_card.tasks.SignTask;
import com.tangem.tangem_card.util.Util;
@ -46,6 +50,10 @@ import co.nstant.in.cbor.model.Array;
import co.nstant.in.cbor.model.ByteString;
import co.nstant.in.cbor.model.DataItem;
import co.nstant.in.cbor.model.UnsignedInteger;
import io.reactivex.CompletableObserver;
import io.reactivex.SingleObserver;
import io.reactivex.observers.DisposableCompletableObserver;
import io.reactivex.observers.DisposableSingleObserver;
import static com.tangem.wallet.Base58.decodeBase58;
import static com.tangem.wallet.Base58.encodeBase58;
@ -143,6 +151,10 @@ public class CardanoEngine extends CoinEngine {
return false;
}
if (address.contains("$")) { // PayID
return validatePayId(address);
}
byte[] decAddress = Base58.decodeBase58(address);
if (decAddress == null || decAddress.length == 0) {
@ -399,6 +411,14 @@ public class CardanoEngine extends CoinEngine {
public SignTask.TransactionToSign constructTransaction(Amount amountValue, Amount feeValue, boolean IncFee, String targetAddress) throws Exception {
checkBlockchainDataExists();
String destination;
//PayID
if (coinData.getResolvedPayIdAddress() != null) {
destination = coinData.getResolvedPayIdAddress();
} else {
destination = targetAddress;
}
String myAddress = ctx.getCoinData().getWallet();
byte[] pbKey = ctx.getCard().getWalletPublicKey();
List<CardanoData.UnspentOutput> utxoList = coinData.getUnspentOutputs();
@ -457,7 +477,7 @@ public class CardanoEngine extends CoinEngine {
}
//1st output
DataItem targetAddressItem = new CborDecoder(new ByteArrayInputStream(decodeBase58(targetAddress))).decode().get(0);
DataItem targetAddressItem = new CborDecoder(new ByteArrayInputStream(decodeBase58(destination))).decode().get(0);
outputsArray
.addArray()
.add(targetAddressItem)
@ -697,9 +717,40 @@ public class CardanoEngine extends CoinEngine {
@Override
public void requestFee(BlockchainRequestsCallbacks blockchainRequestsCallbacks, String targetAddress, Amount amount) {
// int calcSize = calculateEstimatedTransactionSize(targetAddress, amount);
CompletableObserver payIdObserver = new DisposableCompletableObserver() {
@Override
public void onComplete() {
int calcSize = calculateEstimatedTransactionSize(coinData.getResolvedPayIdAddress(), amount);
Log.e(TAG, String.format("Estimated tx size %d", calcSize));
calculateFee(calcSize);
blockchainRequestsCallbacks.onComplete(true);
}
@Override
public void onError(Throwable e) {
ctx.setError(e.getMessage());
blockchainRequestsCallbacks.onComplete(false);
}
};
if (targetAddress.contains("$")) { // PayID
resolvePayID(targetAddress, payIdObserver);
} else {
int calcSize = calculateEstimatedTransactionSize(targetAddress, amount);
Log.e(TAG, String.format("Estimated tx size %d", calcSize));
calculateFee(calcSize);
blockchainRequestsCallbacks.onComplete(true);
}
}
private void calculateFee(int calcSize) {
final double A = 0.155381;
final double B = 0.000043946;
int calcSize = calculateEstimatedTransactionSize(targetAddress, amount);
double fee = A + B * calcSize;
Amount feeAmount = new Amount(new BigDecimal(fee).setScale(getDecimals(), RoundingMode.UP), getFeeCurrency());
@ -707,8 +758,42 @@ public class CardanoEngine extends CoinEngine {
coinData.minFee = feeAmount;
coinData.normalFee = feeAmount;
coinData.maxFee = feeAmount;
}
blockchainRequestsCallbacks.onComplete(true);
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)) {
coinData.setResolvedPayIdAddress(resolvedAddress);
observer.onComplete();
} 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