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 2021-05-24 14:19:02 +03:00
parent 518183728d
commit 2ee782528d
2 changed files with 26 additions and 24 deletions
Download patch file Download diff file Expand all files Collapse all files

9
app/src/main/java/com/tangem/tap/domain/extensions/Blockchain.kt
View file

@ -29,14 +29,15 @@ fun Blockchain.minimalAmount(): BigDecimal {
return 1.toBigDecimal().movePointLeft(decimals())
}
fun Blockchain.getCurve(): EllipticCurve? {
fun Blockchain.getSupportedCurves(): List<EllipticCurve>? {
return when (this) {
Blockchain.Unknown -> null
Blockchain.Bitcoin, Blockchain.BitcoinTestnet, Blockchain.BitcoinCash, Blockchain.Litecoin,
Blockchain.Ducatus, Blockchain.Ethereum, Blockchain.EthereumTestnet, Blockchain.RSK,
Blockchain.XRP, Blockchain.Binance, Blockchain.BinanceTestnet -> EllipticCurve.Secp256k1
Blockchain.Tezos, Blockchain.Cardano, Blockchain.CardanoShelley, Blockchain.Stellar ->
EllipticCurve.Ed25519
Blockchain.XRP, Blockchain.Binance, Blockchain.BinanceTestnet -> listOf(EllipticCurve.Secp256k1)
Blockchain.Tezos -> listOf(EllipticCurve.Secp256k1, EllipticCurve.Ed25519)
Blockchain.Cardano, Blockchain.CardanoShelley, Blockchain.Stellar ->
listOf(EllipticCurve.Ed25519)
}
}

41
app/src/main/java/com/tangem/tap/domain/extensions/WalletManagerFactory.kt
View file

@ -5,29 +5,30 @@ import com.tangem.blockchain.common.WalletManager
import com.tangem.blockchain.common.WalletManagerFactory
import com.tangem.commands.common.card.Card
import com.tangem.commands.common.card.EllipticCurve
import com.tangem.commands.wallet.CardWallet
fun WalletManagerFactory.makeWalletManagerForApp(card: Card, blockchain: Blockchain): WalletManager? {
val curve = blockchain.getCurve() ?: return null
val publicKey = card.getWallets().firstOrNull { it.curve == curve }?.publicKey ?: return null
return makeWalletManager(card.cardId, publicKey, blockchain, curve)
fun WalletManagerFactory.makeWalletManagerForApp(
card: Card,
blockchain: Blockchain,
): WalletManager? {
val supportedCurves = blockchain.getSupportedCurves() ?: return null
val wallets = card.getWallets().filter { wallet -> supportedCurves.contains(wallet.curve) }
val wallet = selectWallet(wallets)
val publicKey = wallet?.publicKey ?: return null
val curveToUse = wallet.curve ?: return null
return makeWalletManager(card.cardId, publicKey, blockchain, curveToUse)
}
private fun selectWallet(wallets: List<CardWallet>): CardWallet? {
return when (wallets.size) {
0 -> null
1 -> wallets[0]
else -> wallets.firstOrNull { it.curve == EllipticCurve.Secp256k1 } ?: wallets[0]
}
}
fun WalletManagerFactory.makeWalletManagersForApp(
card: Card, blockchains: List<Blockchain>
card: Card, blockchains: List<Blockchain>,
): List<WalletManager> {
return makeWalletManagersForCurve(card, blockchains, EllipticCurve.Secp256k1) +
makeWalletManagersForCurve(card, blockchains, EllipticCurve.Ed25519)
return blockchains.mapNotNull { blockchain -> makeWalletManagerForApp(card, blockchain) }
}
fun WalletManagerFactory.makeWalletManagersForCurve(
card: Card, blockchains: List<Blockchain>, curve: EllipticCurve
): List<WalletManager> {
val blockchainsForCurve = blockchains.filter { it.getCurve() == curve }
val walletPublicKey = card.getWallets().firstOrNull { it.curve == curve }?.publicKey
return if (walletPublicKey != null) {
makeWalletManagers(card.cardId, walletPublicKey, blockchainsForCurve, curve)
} else {
emptyList()
}
}