AND-4536 Added decimal chain support

blockchain/src/main/java/com/tangem/blockchain/blockchains/decimal/DecimalAddressService.kt

@@ -0,0 +1,91 @@
+package com.tangem.blockchain.blockchains.decimal
+
+import com.tangem.blockchain.blockchains.binance.client.encoding.Crypto
+import com.tangem.blockchain.common.address.AddressService
+import com.tangem.blockchain.common.address.AddressType
+import com.tangem.common.card.EllipticCurve
+import com.tangem.common.extensions.hexToBytes
+import com.tangem.common.extensions.toDecompressedPublicKey
+import org.bitcoinj.core.Bech32
+import org.kethereum.crypto.toAddress
+import org.kethereum.erc55.hasValidERC55ChecksumOrNoChecksum
+import org.kethereum.erc55.withERC55Checksum
+import org.kethereum.model.Address
+import org.kethereum.model.PublicKey
+import org.komputing.khex.extensions.toHexString
+import com.tangem.blockchain.common.address.Address as SdkAddress
+
+internal class DecimalAddressService : AddressService() {
+
+    override fun makeAddress(walletPublicKey: ByteArray, curve: EllipticCurve?): String {
+        return makeErcAddress(walletPublicKey)
+    }
+
+    override fun makeAddresses(
+        walletPublicKey: ByteArray,
+        curve: EllipticCurve?,
+    ): Set<SdkAddress> {
+        val ercAddress = makeErcAddress(walletPublicKey)
+
+        return setOf(
+            SdkAddress(ercAddress),
+            SdkAddress(
+                convertErcAddressToDscAddress(ercAddress),
+                AddressType.Legacy,
+            )
+        )
+    }
+
+    private fun makeErcAddress(walletPublicKey: ByteArray): String {
+        val decompressedPublicKey = walletPublicKey
+            .toDecompressedPublicKey()
+            .sliceArray(1..64)
+
+        return PublicKey(decompressedPublicKey)
+            .toAddress()
+            .withERC55Checksum()
+            .hex
+    }
+
+    override fun validate(address: String): Boolean {
+        val addressToValidate = when {
+            address.startsWith(ADDRESS_PREFIX) || address.startsWith(LEGACY_ADDRESS_PREFIX) -> {
+                convertDscAddressToErcAddress(address) ?: return false
+            }
+
+            else -> address
+        }
+
+        return Address(addressToValidate).hasValidERC55ChecksumOrNoChecksum()
+    }
+
+    companion object {
+        private const val ADDRESS_PREFIX = "d0"
+        private const val LEGACY_ADDRESS_PREFIX = "dx"
+        private const val ERC55_ADDRESS_PREFIX = "0x"
+
+        fun convertDscAddressToErcAddress(addressHex: String): String? {
+            if (addressHex.startsWith(ERC55_ADDRESS_PREFIX)) {
+                return addressHex
+            }
+
+            val (prefix, addressBytes) = Bech32.decode(addressHex).let { it.hrp to it.data }
+            if (prefix == null || addressBytes == null) return null
+
+            val convertedAddressBytes = Crypto.convertBits(addressBytes, 0, addressBytes.size, 5, 8, false)
+
+            return convertedAddressBytes.toHexString()
+        }
+
+        fun convertErcAddressToDscAddress(addressHex: String): String {
+            if (addressHex.startsWith(ADDRESS_PREFIX) || addressHex.startsWith(LEGACY_ADDRESS_PREFIX)) {
+                return addressHex
+            }
+
+            val addressBytes = addressHex.hexToBytes()
+            val converted = Crypto.convertBits(addressBytes, 0, addressBytes.size, 8, 5, false)
+
+            return Bech32.encode(ADDRESS_PREFIX, converted)
+        }
+    }
+}

blockchain/src/main/java/com/tangem/blockchain/blockchains/decimal/DecimalWalletManager.kt

@@ -0,0 +1,60 @@
+package com.tangem.blockchain.blockchains.decimal
+
+import com.tangem.blockchain.blockchains.ethereum.CompiledEthereumTransaction
+import com.tangem.blockchain.blockchains.ethereum.EthereumTransactionBuilder
+import com.tangem.blockchain.blockchains.ethereum.EthereumWalletManager
+import com.tangem.blockchain.blockchains.ethereum.network.EthereumNetworkProvider
+import com.tangem.blockchain.common.Amount
+import com.tangem.blockchain.common.TransactionData
+import com.tangem.blockchain.common.TransactionSigner
+import com.tangem.blockchain.common.Wallet
+import com.tangem.blockchain.common.transaction.TransactionFee
+import com.tangem.blockchain.extensions.Result
+import com.tangem.blockchain.extensions.SimpleResult
+import java.math.BigInteger
+
+internal class DecimalWalletManager(
+    wallet: Wallet,
+    transactionBuilder: EthereumTransactionBuilder,
+    networkProvider: EthereumNetworkProvider,
+) : EthereumWalletManager(wallet, transactionBuilder, networkProvider) {
+
+    override suspend fun getFee(amount: Amount, destination: String): Result<TransactionFee> {
+        return super.getFee(amount, convertAddress(destination))
+    }
+
+    override suspend fun getFee(amount: Amount, destination: String, data: String): Result<TransactionFee> {
+        return super.getFee(amount, convertAddress(destination), data)
+    }
+
+    override suspend fun getFeeInternal(amount: Amount, destination: String, data: String?): Result<TransactionFee> {
+        return super.getFeeInternal(amount, convertAddress(destination), data)
+    }
+
+    override suspend fun getGasLimit(amount: Amount, destination: String): Result<BigInteger> {
+        return super.getGasLimit(amount, convertAddress(destination))
+    }
+
+    override suspend fun getGasLimit(amount: Amount, destination: String, data: String): Result<BigInteger> {
+        return super.getGasLimit(amount, convertAddress(destination), data)
+    }
+
+    override suspend fun send(transactionData: TransactionData, signer: TransactionSigner): SimpleResult {
+        return super.send(convertTransactionDataAddress(transactionData), signer)
+    }
+
+    override suspend fun sign(
+        transactionData: TransactionData,
+        signer: TransactionSigner,
+    ): Result<Pair<ByteArray, CompiledEthereumTransaction>> {
+        return super.sign(convertTransactionDataAddress(transactionData), signer)
+    }
+
+    private fun convertTransactionDataAddress(transactionData: TransactionData) = transactionData.copy(
+        destinationAddress = convertAddress(transactionData.destinationAddress),
+    )
+
+    private fun convertAddress(destinationAddress: String): String {
+        return DecimalAddressService.convertDscAddressToErcAddress(destinationAddress) ?: destinationAddress
+    }
+}

blockchain/src/main/java/com/tangem/blockchain/blockchains/ethereum/EthereumJsonRpcProvidersExt.kt

@@ -161,13 +161,28 @@ internal fun Blockchain.getEthereumJsonRpcProviders(
             EthereumJsonRpcProvider(baseUrl = "https://api.kainosbp.com", postfixUrl = "evm"),
             EthereumJsonRpcProvider(baseUrl = "https://telos-evm.rpc.thirdweb.com/")
         )
+
         Blockchain.TelosTestnet -> listOf(
             EthereumJsonRpcProvider(baseUrl = "https://telos-evm-testnet.rpc.thirdweb.com/"),
         )
+
         Blockchain.OctaSpace -> listOf(
             EthereumJsonRpcProvider(baseUrl = "https://rpc.octa.space"),
             EthereumJsonRpcProvider(baseUrl = "https://octaspace.rpc.thirdweb.com"),
         )
+
+        Blockchain.Decimal -> listOf(
+            EthereumJsonRpcProvider(baseUrl = "https://node.decimalchain.com/web3/"),
+            EthereumJsonRpcProvider(baseUrl = "https://node1-mainnet.decimalchain.com/web3/"),
+            EthereumJsonRpcProvider(baseUrl = "https://node2-mainnet.decimalchain.com/web3/"),
+            EthereumJsonRpcProvider(baseUrl = "https://node3-mainnet.decimalchain.com/web3/"),
+            EthereumJsonRpcProvider(baseUrl = "https://node4-mainnet.decimalchain.com/web3/"),
+        )
+
+        Blockchain.DecimalTestnet -> listOf(
+            EthereumJsonRpcProvider(baseUrl = "https://testnet-val.decimalchain.com/web3/")
+        )
+
         else -> throw IllegalStateException("$this isn't supported")
     }
 

blockchain/src/main/java/com/tangem/blockchain/blockchains/ethereum/EthereumTransactionBuilder.kt

@@ -144,4 +144,6 @@ enum class Chain(
     Cronos(25, Blockchain.Cronos),
     OctaSpace(800001, Blockchain.OctaSpace),
     OctaSpaceTestnet(800002, Blockchain.OctaSpaceTestnet),
+    Decimal(75, Blockchain.Decimal),
+    DecimalTestnet(202020, Blockchain.DecimalTestnet)
 }

blockchain/src/main/java/com/tangem/blockchain/common/Blockchain.kt

@@ -5,6 +5,7 @@ import com.tangem.blockchain.blockchains.bitcoin.BitcoinAddressService
 import com.tangem.blockchain.blockchains.bitcoincash.BitcoinCashAddressService
 import com.tangem.blockchain.blockchains.cardano.CardanoAddressServiceFacade
 import com.tangem.blockchain.blockchains.chia.ChiaAddressService
+import com.tangem.blockchain.blockchains.decimal.DecimalAddressService
 import com.tangem.blockchain.blockchains.ethereum.Chain
 import com.tangem.blockchain.blockchains.ethereum.EthereumAddressService
 import com.tangem.blockchain.blockchains.kaspa.KaspaAddressService
@@ -96,6 +97,8 @@ enum class Blockchain(
     OctaSpaceTestnet("octaspace/test", "OCTA", "OctaSpace Testnet"),
     Chia("chia", "XCH", "Chia Network"),
     ChiaTestnet("chia/test", "TXCH", "Chia Network Testnet"),
+    Decimal("decimal", "DEL", "Decimal Smart Chain"),
+    DecimalTestnet("decimal/test", "tDEL", "Decimal Smart Chain Testnet"),
     ;
 
     private val externalLinkProvider: ExternalLinkProvider by lazy { ExternalLinkProviderFactory.makeProvider(this) }
@@ -104,6 +107,7 @@ enum class Blockchain(
         Unknown -> 0
         Near, NearTestnet,
         -> 5
+
         Cardano,
         XRP,
         Tezos,
@@ -113,6 +117,7 @@ enum class Blockchain(
         -> 6
 
         Stellar, StellarTestnet -> 7
+
         Bitcoin, BitcoinTestnet,
         BitcoinCash, BitcoinCashTestnet,
         Binance, BinanceTestnet,
@@ -129,6 +134,7 @@ enum class Blockchain(
         -> 9
 
         Polkadot -> 10
+
         PolkadotTestnet, Kusama, AlephZero, AlephZeroTestnet,
         Chia, ChiaTestnet,
         -> 12
@@ -148,6 +154,7 @@ enum class Blockchain(
         Cronos,
         Telos, TelosTestnet,
         OctaSpace, OctaSpaceTestnet,
+        Decimal, DecimalTestnet,
         -> 18
     }
 
@@ -175,7 +182,6 @@ enum class Blockchain(
             Dash,
             Ravencoin, RavencoinTestnet,
             -> BitcoinAddressService(this)
-
             BitcoinCash, BitcoinCashTestnet -> BitcoinCashAddressService(this)
             Arbitrum, ArbitrumTestnet,
             Ethereum, EthereumTestnet,
@@ -194,6 +200,7 @@ enum class Blockchain(
             OctaSpace, OctaSpaceTestnet,
             -> EthereumAddressService()
 
+            Decimal, DecimalTestnet -> DecimalAddressService()
             RSK -> RskAddressService()
             Cardano -> CardanoAddressServiceFacade()
             XRP -> XrpAddressService()
@@ -205,7 +212,6 @@ enum class Blockchain(
             Tezos -> TezosAddressService()
             TON, TONTestnet, Cosmos, CosmosTestnet, TerraV1, TerraV2, Near, NearTestnet,
             -> TrustWalletAddressService(blockchain = this)
-
             Tron, TronTestnet -> TronAddressService()
             Kaspa -> KaspaAddressService()
             Chia, ChiaTestnet -> ChiaAddressService(this)
@@ -269,6 +275,7 @@ enum class Blockchain(
             OctaSpace, OctaSpaceTestnet -> OctaSpaceTestnet
             Chia, ChiaTestnet -> ChiaTestnet
             Near, NearTestnet -> NearTestnet
+            Decimal, DecimalTestnet -> DecimalTestnet
             else -> null
         }
     }
@@ -313,6 +320,7 @@ enum class Blockchain(
             TerraV1, TerraV2,
             Cronos,
             OctaSpace, OctaSpaceTestnet,
+            Decimal, DecimalTestnet,
             -> listOf(EllipticCurve.Secp256k1)
 
             Stellar, StellarTestnet,
@@ -357,6 +365,8 @@ enum class Blockchain(
             Cronos -> Chain.Cronos.id
             OctaSpace -> Chain.OctaSpace.id
             OctaSpaceTestnet -> Chain.OctaSpaceTestnet.id
+            Decimal -> Chain.Decimal.id
+            DecimalTestnet -> Chain.DecimalTestnet.id
             else -> null
         }
     }

blockchain/src/main/java/com/tangem/blockchain/common/WalletManagerFactory.kt

@@ -4,8 +4,6 @@ import com.tangem.blockchain.common.assembly.WalletManagerAssembly
 import com.tangem.blockchain.common.assembly.WalletManagerAssemblyInput
 import com.tangem.blockchain.common.assembly.impl.*
 import com.tangem.common.card.EllipticCurve
-import com.tangem.crypto.hdWallet.DerivationPath
-import com.tangem.crypto.hdWallet.bip32.ExtendedPublicKey
 
 class WalletManagerFactory(private val config: BlockchainSdkConfig = BlockchainSdkConfig()) {
 
@@ -153,6 +151,10 @@ class WalletManagerFactory(private val config: BlockchainSdkConfig = BlockchainS
                 EthereumLikeWalletManagerAssembly
             }
 
+            Blockchain.Decimal, Blockchain.DecimalTestnet -> {
+                DecimalWalletManagerAssembly
+            }
+
             Blockchain.Optimism, Blockchain.OptimismTestnet -> {
                 OptimismWalletManagerAssembly
             }

blockchain/src/main/java/com/tangem/blockchain/common/assembly/impl/DecimalWalletManagerAssembly.kt

@@ -0,0 +1,26 @@
+package com.tangem.blockchain.common.assembly.impl
+
+import com.tangem.blockchain.blockchains.decimal.DecimalWalletManager
+import com.tangem.blockchain.blockchains.ethereum.EthereumTransactionBuilder
+import com.tangem.blockchain.blockchains.ethereum.getEthereumJsonRpcProviders
+import com.tangem.blockchain.blockchains.ethereum.network.EthereumNetworkService
+import com.tangem.blockchain.common.assembly.WalletManagerAssembly
+import com.tangem.blockchain.common.assembly.WalletManagerAssemblyInput
+
+internal object DecimalWalletManagerAssembly : WalletManagerAssembly<DecimalWalletManager>() {
+
+    override fun make(input: WalletManagerAssemblyInput): DecimalWalletManager {
+        return with(input.wallet) {
+            DecimalWalletManager(
+                wallet = this,
+                transactionBuilder = EthereumTransactionBuilder(
+                    walletPublicKey = publicKey.blockchainKey,
+                    blockchain = blockchain
+                ),
+                networkProvider = EthereumNetworkService(
+                    jsonRpcProviders = blockchain.getEthereumJsonRpcProviders(input.config),
+                )
+            )
+        }
+    }
+}

blockchain/src/main/java/com/tangem/blockchain/common/derivation/DerivationConfigV1.kt

@@ -58,10 +58,12 @@ object DerivationConfigV1 : DerivationConfig() {
             Blockchain.Ethereum,
             Blockchain.EthereumPow,
             Blockchain.EthereumFair,
-            Blockchain.OctaSpace
+            Blockchain.OctaSpace,
+            Blockchain.Decimal,
             -> {
                 mapOf(AddressType.Default to DerivationPath("m/44'/60'/0'/0/0"))
             }
+
             Blockchain.EthereumClassic -> {
                 mapOf(AddressType.Default to DerivationPath("m/44'/61'/0'/0/0"))
             }
@@ -174,9 +176,10 @@ object DerivationConfigV1 : DerivationConfig() {
             Blockchain.AlephZeroTestnet,
             Blockchain.OctaSpaceTestnet,
             Blockchain.NearTestnet,
+            Blockchain.DecimalTestnet,
             -> {
                 mapOf(AddressType.Default to DerivationPath("m/44'/1'/0'/0/0"))
             }
         }
     }
-}
+}

blockchain/src/main/java/com/tangem/blockchain/common/derivation/DerivationConfigV2.kt

@@ -71,9 +71,12 @@ object DerivationConfigV2 : DerivationConfig() {
             Blockchain.Kava,
             Blockchain.Cronos,
             Blockchain.Telos,
-            Blockchain.OctaSpace -> {
+            Blockchain.OctaSpace,
+            Blockchain.Decimal,
+            -> {
                 mapOf(AddressType.Default to DerivationPath("m/44'/60'/0'/0/0"))
             }
+
             Blockchain.Binance -> {
                 mapOf(AddressType.Default to DerivationPath("m/44'/714'/0'/0/0"))
             }
@@ -148,10 +151,11 @@ object DerivationConfigV2 : DerivationConfig() {
             Blockchain.TelosTestnet,
             Blockchain.AlephZeroTestnet,
             Blockchain.OctaSpaceTestnet,
-            Blockchain.NearTestnet
+            Blockchain.NearTestnet,
+            Blockchain.DecimalTestnet,
             -> {
                 mapOf(AddressType.Default to DerivationPath("m/44'/1'/0'/0/0"))
             }
         }
     }
-}
+}