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Updated on 2026-08-14

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Tangem 2018-10-11 16:21:54 +03:00
parent 7a94fb82ee
commit d7c4519c2c
5 changed files with 85 additions and 83 deletions
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111
app/src/main/java/com/tangem/domain/wallet/BtcEngine.java
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@ -20,10 +20,8 @@ import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import java.util.Random;
import static com.tangem.util.FormatUtil.stringToBigDecimal;
@ -70,23 +68,23 @@ public class BtcEngine extends CoinEngine {
static int serviceIndex = 0;
public String getNode(TangemCard mCard) {
switch (mCard.getBlockchain()) {
public String getNode(TangemCard card) {
switch (card.getBlockchain()) {
case Bitcoin:
return getBitcoinServiceHosts()[serviceIndex]; //
}
return null;
}
public int getNodePort(TangemCard mCard) {
switch (mCard.getBlockchain()) {
public int getNodePort(TangemCard card) {
switch (card.getBlockchain()) {
case Bitcoin:
return getBitcoinServicePorts()[serviceIndex];//8080;
}
return 8080;
}
public void switchNode(TangemCard mCard) {
public void switchNode(TangemCard card) {
serviceIndex++;
if (serviceIndex > getBitcoinServiceHosts().length - 1) serviceIndex = 0;
}
@ -99,16 +97,16 @@ public class BtcEngine extends CoinEngine {
return card.getBalanceUnconfirmed() != 0;
}
public String getBalanceWithAlter(TangemCard mCard) {
return getBalance(mCard);
public String getBalanceWithAlter(TangemCard card) {
return getBalance(card);
}
public boolean isBalanceAlterNotZero(TangemCard card) {
return true;
}
public Long getBalanceLong(TangemCard mCard) {
return mCard.getBalance();
public Long getBalanceLong(TangemCard card) {
return card.getBalance();
}
public boolean isBalanceNotZero(TangemCard card) {
@ -134,8 +132,8 @@ public class BtcEngine extends CoinEngine {
return "BTC";
}
public boolean checkUnspentTransaction(TangemCard mCard) {
return mCard.getUnspentTransactions().size() != 0;
public boolean checkUnspentTransaction(TangemCard card) {
return card.getUnspentTransactions().size() != 0;
}
public String getFeeCurrency() {
@ -201,20 +199,20 @@ public class BtcEngine extends CoinEngine {
return true;
}
public Uri getShareWalletUriExplorer(TangemCard mCard) {
return Uri.parse((mCard.getBlockchain() == Blockchain.Bitcoin ? "https://blockchain.info/address/" : "https://testnet.blockchain.info/address/") + mCard.getWallet());
public Uri getShareWalletUriExplorer(TangemCard card) {
return Uri.parse((card.getBlockchain() == Blockchain.Bitcoin ? "https://blockchain.info/address/" : "https://testnet.blockchain.info/address/") + card.getWallet());
}
public Uri getShareWalletUri(TangemCard mCard) {
if (mCard.getDenomination() != null) {
return Uri.parse("bitcoin:" + mCard.getWallet() + "?amount=" + BTCUtils.satoshiToBtc(mCard.getDenomination()));
public Uri getShareWalletUri(TangemCard card) {
if (card.getDenomination() != null) {
return Uri.parse("bitcoin:" + card.getWallet() + "?amount=" + BTCUtils.satoshiToBtc(card.getDenomination()));
} else {
return Uri.parse("bitcoin:" + mCard.getWallet());
return Uri.parse("bitcoin:" + card.getWallet());
}
}
public boolean checkAmountValue(TangemCard card, String amountValue, String feeValue, Long minFeeInInternalUnits, Boolean incfee) {
public boolean checkAmountValue(TangemCard card, String amountValue, String feeValue, Long minFeeInInternalUnits, Boolean isIncludeFee) {
Long fee;
Long amount;
try {
@ -231,44 +229,44 @@ public class BtcEngine extends CoinEngine {
if (fee == 0 || amount == 0)
return false;
if (incfee && amount > card.getBalance())
if (isIncludeFee && amount > card.getBalance())
return false;
if (!incfee && amount + fee > card.getBalance())
if (!isIncludeFee && amount + fee > card.getBalance())
return false;
return true;
}
public String evaluateFeeEquivalent(TangemCard mCard, String fee) {
return getAmountEquivalentDescriptor(mCard, fee);
public String evaluateFeeEquivalent(TangemCard card, String fee) {
return getAmountEquivalentDescriptor(card, fee);
}
@Override
public String getBalanceEquivalent(TangemCard mCard) {
public String getBalanceEquivalent(TangemCard card) {
Double balance = Double.NaN;
try {
Long val = mCard.getBalance();
balance = mCard.AmountFromInternalUnits(val);
Long val = card.getBalance();
balance = card.amountFromInternalUnits(val);
} catch (Exception ex) {
mCard.setRate(0);
card.setRate(0);
}
return mCard.getAmountEquivalentDescription(balance);
return card.getAmountEquivalentDescription(balance);
}
public String getBalance(TangemCard mCard) {
if (mCard.hasBalanceInfo()) {
Double balance = mCard.AmountFromInternalUnits(mCard.getBalance());
return mCard.getAmountDescription(balance);
public String getBalance(TangemCard card) {
if (card.hasBalanceInfo()) {
Double balance = card.amountFromInternalUnits(card.getBalance());
return card.getAmountDescription(balance);
} else {
return "";
}
}
public String getBalanceValue(TangemCard mCard) {
if (mCard.hasBalanceInfo()) {
Double balance = mCard.getBalance() / (mCard.getBlockchain().getMultiplier());
public String getBalanceValue(TangemCard card) {
if (card.hasBalanceInfo()) {
Double balance = card.getBalance() / (card.getBlockchain().getMultiplier());
String output = FormatUtil.DoubleToString(balance);
//String pattern = "#0.000"; // If you like 4 zeros
@ -282,10 +280,9 @@ public class BtcEngine extends CoinEngine {
}
}
public String calculateAddress(TangemCard mCard, byte[] pkUncompressed) throws NoSuchProviderException, NoSuchAlgorithmException {
public String calculateAddress(TangemCard card, byte[] pkUncompressed) throws NoSuchProviderException, NoSuchAlgorithmException {
byte netSelectionByte;
switch (mCard.getBlockchain()) {
switch (card.getBlockchain()) {
case Bitcoin:
netSelectionByte = (byte) 0x00; //0 - MainNet 0x6f - TestNet
break;
@ -314,28 +311,27 @@ public class BtcEngine extends CoinEngine {
BB.put(hash4[3]);
return org.bitcoinj.core.Base58.encode(BB.array());
}
@Override
public String convertByteArrayToAmount(TangemCard mCard, byte[] bytes) throws Exception {
public String convertByteArrayToAmount(TangemCard card, byte[] bytes) throws Exception {
if (bytes == null) return "";
byte[] reversed = new byte[bytes.length];
for (int i = 0; i < bytes.length; i++) reversed[i] = bytes[bytes.length - i - 1];
return FormatUtil.DoubleToString(mCard.AmountFromInternalUnits(Util.byteArrayToLong(reversed)));
return FormatUtil.DoubleToString(card.amountFromInternalUnits(Util.byteArrayToLong(reversed)));
}
@Override
public byte[] convertAmountToByteArray(TangemCard mCard, String amount) throws Exception {
byte[] bytes = Util.longToByteArray(mCard.internalUnitsFromString(amount));
public byte[] convertAmountToByteArray(TangemCard card, String amount) throws Exception {
byte[] bytes = Util.longToByteArray(card.internalUnitsFromString(amount));
byte[] reversed = new byte[bytes.length];
for (int i = 0; i < bytes.length; i++) reversed[i] = bytes[bytes.length - i - 1];
return reversed;
}
@Override
public String getAmountDescription(TangemCard mCard, String amount) throws Exception {
return mCard.getAmountDescription(Double.parseDouble(amount));
public String getAmountDescription(TangemCard card, String amount) throws Exception {
return card.getAmountDescription(Double.parseDouble(amount));
}
public static String getAmountEquivalentDescriptionBTC(Double amount, float rate) {
@ -346,19 +342,19 @@ public class BtcEngine extends CoinEngine {
}
}
public String getAmountEquivalentDescriptor(TangemCard mCard, String value) {
return getAmountEquivalentDescriptionBTC(Double.parseDouble(value), mCard.getRate());
public String getAmountEquivalentDescriptor(TangemCard card, String value) {
return getAmountEquivalentDescriptionBTC(Double.parseDouble(value), card.getRate());
}
public byte[] sign(String feeValue, String amountValue, boolean IncFee, String toValue, TangemCard mCard, CardProtocol protocol) throws Exception {
public byte[] sign(String feeValue, String amountValue, boolean IncFee, String toValue, TangemCard card, CardProtocol protocol) throws Exception {
String myAddress = mCard.getWallet();
byte[] pbKey = mCard.getWalletPublicKey();
String myAddress = card.getWallet();
byte[] pbKey = card.getWalletPublicKey();
String outputAddress = toValue;
String changeAddress = myAddress;
// Build script for our address
List<TangemCard.UnspentTransaction> rawTxList = mCard.getUnspentTransactions();
List<TangemCard.UnspentTransaction> rawTxList = card.getUnspentTransactions();
byte[] outputScriptWeAreAbleToSpend = Transaction.Script.buildOutput(myAddress).bytes;
// Collect unspent
@ -394,7 +390,7 @@ public class BtcEngine extends CoinEngine {
unspentOutputs.get(i).bodyDoubleHash = doubleHashData;
unspentOutputs.get(i).bodyHash = hashData;
if (mCard.getSigningMethod() == TangemCard.SigningMethod.Sign_Raw || mCard.getSigningMethod() == TangemCard.SigningMethod.Sign_Raw_Validated_By_Issuer) {
if (card.getSigningMethod() == TangemCard.SigningMethod.Sign_Raw || card.getSigningMethod() == TangemCard.SigningMethod.Sign_Raw_Validated_By_Issuer) {
dataForSign[i] = newTX;
} else {
dataForSign[i] = doubleHashData;
@ -402,8 +398,8 @@ public class BtcEngine extends CoinEngine {
}
byte[] signFromCard = null;
if (mCard.getSigningMethod() == TangemCard.SigningMethod.Sign_Raw || mCard.getSigningMethod() == TangemCard.SigningMethod.Sign_Raw_Validated_By_Issuer) {
byte[] signFromCard;
if (card.getSigningMethod() == TangemCard.SigningMethod.Sign_Raw || card.getSigningMethod() == TangemCard.SigningMethod.Sign_Raw_Validated_By_Issuer) {
ByteArrayOutputStream bs = new ByteArrayOutputStream();
if (dataForSign.length > 10) throw new Exception("To much hashes in one transaction!");
for (int i = 0; i < dataForSign.length; i++) {
@ -413,7 +409,7 @@ public class BtcEngine extends CoinEngine {
}
signFromCard = protocol.run_SignRaw(PINStorage.getPIN2(), bs.toByteArray()).getTLV(TLV.Tag.TAG_Signature).Value;
} else {
signFromCard = protocol.run_SignHashes(PINStorage.getPIN2(), dataForSign, mCard.getSigningMethod() == TangemCard.SigningMethod.Sign_Hash_Validated_By_Issuer, null, mCard.getIssuer()).getTLV(TLV.Tag.TAG_Signature).Value;
signFromCard = protocol.run_SignHashes(PINStorage.getPIN2(), dataForSign, card.getSigningMethod() == TangemCard.SigningMethod.Sign_Hash_Validated_By_Issuer, null, card.getIssuer()).getTLV(TLV.Tag.TAG_Signature).Value;
// TODO slice signFromCard to hashes.length parts
}
@ -429,4 +425,5 @@ public class BtcEngine extends CoinEngine {
byte[] realTX = BTCUtils.buildTXForSend(outputAddress, changeAddress, unspentOutputs, amount, change);
return realTX;
}
}
}