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AND-9157 Fact0rn based on Bitcoin wallet
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25 changes: 23 additions & 2 deletions
25
blockchain/src/main/java/com/tangem/blockchain/blockchains/factorn/Fact0rnAddressService.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,15 +1,36 @@ | ||
| package com.tangem.blockchain.blockchains.factorn | ||
|
|
||
| import com.tangem.blockchain.blockchains.bitcoin.BitcoinAddressService | ||
| import com.tangem.blockchain.common.Blockchain | ||
| import com.tangem.blockchain.common.address.AddressService | ||
| import com.tangem.common.card.EllipticCurve | ||
| import com.tangem.common.extensions.toHexString | ||
| import org.bitcoinj.core.SegwitAddress | ||
| import org.bitcoinj.core.Sha256Hash | ||
| import org.bitcoinj.script.Script | ||
| import org.bitcoinj.script.ScriptBuilder | ||
|
|
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| internal class Fact0rnAddressService : AddressService() { | ||
|
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| private val bitcoinAddressService = BitcoinAddressService(Blockchain.Fact0rn) | ||
|
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| override fun makeAddress(walletPublicKey: ByteArray, curve: EllipticCurve?): String { | ||
| TODO("Not yet implemented") | ||
| return bitcoinAddressService.makeSegwitAddress(walletPublicKey).value | ||
| } | ||
|
|
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| override fun validate(address: String): Boolean { | ||
| TODO("Not yet implemented") | ||
| return bitcoinAddressService.validateSegwitAddress(address) | ||
| } | ||
|
|
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| companion object { | ||
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| internal fun addressToScript(address: String): Script = | ||
| ScriptBuilder.createOutputScript(SegwitAddress.fromBech32(Fact0rnMainNetParams(), address)) | ||
|
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| internal fun addressToScriptHash(address: String): String { | ||
| val p2pkhScript = addressToScript(address) | ||
| val sha256Hash = Sha256Hash.hash(p2pkhScript.program) | ||
| return sha256Hash.reversedArray().toHexString() | ||
| } | ||
| } | ||
| } |
10 changes: 10 additions & 0 deletions
10
blockchain/src/main/java/com/tangem/blockchain/blockchains/factorn/Fact0rnMainNetParams.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| package com.tangem.blockchain.blockchains.factorn | ||
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| import org.bitcoinj.params.MainNetParams | ||
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| internal class Fact0rnMainNetParams : MainNetParams() { | ||
|
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| init { | ||
| segwitAddressHrp = "fact" | ||
| } | ||
| } |
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33 changes: 0 additions & 33 deletions
33
blockchain/src/main/java/com/tangem/blockchain/blockchains/factorn/Fact0rnWalletManager.kt
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165 changes: 163 additions & 2 deletions
165
.../src/main/java/com/tangem/blockchain/blockchains/factorn/network/Fact0rnNetworkService.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,13 +1,174 @@ | ||
| package com.tangem.blockchain.blockchains.factorn.network | ||
|
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| import com.tangem.blockchain.common.NetworkProvider | ||
| import com.tangem.blockchain.blockchains.bitcoin.BitcoinUnspentOutput | ||
| import com.tangem.blockchain.blockchains.bitcoin.network.BitcoinAddressInfo | ||
| import com.tangem.blockchain.blockchains.bitcoin.network.BitcoinFee | ||
| import com.tangem.blockchain.blockchains.bitcoin.network.BitcoinNetworkProvider | ||
| import com.tangem.blockchain.blockchains.factorn.Fact0rnAddressService.Companion.addressToScript | ||
| import com.tangem.blockchain.blockchains.factorn.Fact0rnAddressService.Companion.addressToScriptHash | ||
| import com.tangem.blockchain.common.BasicTransactionData | ||
| import com.tangem.blockchain.common.Blockchain | ||
| import com.tangem.blockchain.extensions.* | ||
| import com.tangem.blockchain.network.MultiNetworkProvider | ||
| import com.tangem.blockchain.network.electrum.ElectrumNetworkProvider | ||
| import com.tangem.blockchain.network.electrum.ElectrumUnspentUTXORecord | ||
| import com.tangem.blockchain.network.electrum.api.ElectrumResponse | ||
| import com.tangem.common.extensions.hexToBytes | ||
| import kotlinx.coroutines.async | ||
| import kotlinx.coroutines.awaitAll | ||
| import kotlinx.coroutines.coroutineScope | ||
| import java.math.BigDecimal | ||
| import java.util.Calendar | ||
|
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| internal class Fact0rnNetworkService(providers: List<ElectrumNetworkProvider>) : NetworkProvider { | ||
| internal class Fact0rnNetworkService( | ||
| private val blockchain: Blockchain, | ||
| providers: List<ElectrumNetworkProvider>, | ||
| ) : BitcoinNetworkProvider { | ||
|
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| override val baseUrl: String | ||
| get() = multiProvider.currentProvider.baseUrl | ||
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| private val multiProvider = MultiNetworkProvider(providers) | ||
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| override suspend fun getInfo(address: String): Result<BitcoinAddressInfo> = coroutineScope { | ||
| val scriptHash = addressToScriptHash(address) | ||
| val balanceDeferred = | ||
| async { multiProvider.performRequest(ElectrumNetworkProvider::getAccountBalance, scriptHash) } | ||
| val unspentsDeferred = | ||
| async { multiProvider.performRequest(ElectrumNetworkProvider::getUnspentUTXOs, scriptHash) } | ||
| val balance = balanceDeferred.await().successOr { return@coroutineScope it } | ||
| val unspentsUTXOs = unspentsDeferred.await().successOr { return@coroutineScope it } | ||
|
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| val info = BitcoinAddressInfo( | ||
| balance = balance.confirmedAmount, | ||
| unspentOutputs = createUnspentOutputs( | ||
| getUtxoResponseItems = unspentsUTXOs, | ||
| address = address, | ||
| ), | ||
| recentTransactions = createRecentTransactions( | ||
| utxoResponseItems = unspentsUTXOs, | ||
| address = address, | ||
| ), | ||
| hasUnconfirmed = balance.unconfirmedAmount > BigDecimal.ZERO, | ||
| ) | ||
| Result.Success(info) | ||
| } | ||
|
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| override suspend fun getFee(): Result<BitcoinFee> = coroutineScope { | ||
| val minimalFee = multiProvider.performRequest { getEstimateFee(MINIMAL_NUMBER_OF_CONFIRMATION_BLOCKS) } | ||
| .map { feeResponse -> | ||
| feeResponse.feeInCoinsPer1000Bytes | ||
| ?.divide(BigDecimal(BYTES_IN_KB)) | ||
| ?.movePointLeft(blockchain.decimals()) | ||
| ?: BigDecimal.ZERO | ||
| } | ||
| .successOr { return@coroutineScope it } | ||
|
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| Result.Success( | ||
| BitcoinFee( | ||
| minimalPerKb = minimalFee, | ||
| normalPerKb = minimalFee.multiply(NORMAL_FEE_MULTIPLIER), | ||
| priorityPerKb = minimalFee.multiply(PRIORITY_FEE_MULTIPLIER), | ||
| ), | ||
| ) | ||
| } | ||
|
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| override suspend fun sendTransaction(transaction: String): SimpleResult { | ||
| return multiProvider.performRequest(ElectrumNetworkProvider::broadcastTransaction, transaction.hexToBytes()) | ||
| .map { SimpleResult.Success } | ||
| .successOr { it.toSimpleFailure() } | ||
| } | ||
|
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| override suspend fun getSignatureCount(address: String): Result<Int> { | ||
| return multiProvider.performRequest( | ||
| ElectrumNetworkProvider::getTransactionHistory, | ||
| addressToScriptHash(address), | ||
| ) | ||
| .map { Result.Success(it.count()) } | ||
| .successOr { it } | ||
| } | ||
|
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| private fun createUnspentOutputs( | ||
| getUtxoResponseItems: List<ElectrumUnspentUTXORecord>, | ||
| address: String, | ||
| ): List<BitcoinUnspentOutput> = getUtxoResponseItems.map { | ||
| val amount = it.value | ||
| BitcoinUnspentOutput( | ||
| amount = amount, | ||
| outputIndex = it.txPos, | ||
| transactionHash = it.txHash.hexToBytes(), | ||
| outputScript = addressToScript(address).program, | ||
| ) | ||
| } | ||
|
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| private suspend fun createRecentTransactions( | ||
| utxoResponseItems: List<ElectrumUnspentUTXORecord>, | ||
| address: String, | ||
| ): List<BasicTransactionData> = coroutineScope { | ||
| utxoResponseItems | ||
| .filter { !it.isConfirmed } | ||
| .map { utxo -> async { multiProvider.performRequest { getTransactionInfo(utxo.txHash) } } } | ||
| .awaitAll() | ||
| .filterIsInstance<Result.Success<ElectrumResponse.Transaction>>() | ||
| .map { result -> | ||
| val transaction: ElectrumResponse.Transaction = result.data | ||
| val vin = transaction.vin ?: listOf() | ||
| val vout = transaction.vout ?: listOf() | ||
| val isIncoming = vin.any { it.addresses?.contains(address) == false } | ||
| var source = "unknown" | ||
| var destination = "unknown" | ||
| val amount = if (isIncoming) { | ||
| destination = address | ||
| vin.firstOrNull() | ||
| ?.addresses | ||
| ?.firstOrNull() | ||
| ?.let { source = it } | ||
| val outputs = vout | ||
| .find { it.scriptPublicKey?.addresses?.contains(address) == true } | ||
| ?.value?.toBigDecimal() ?: BigDecimal.ZERO | ||
| val inputs = vin | ||
| .find { it.addresses?.contains(address) == true } | ||
| ?.value?.toBigDecimal() ?: BigDecimal.ZERO | ||
| outputs - inputs | ||
| } else { | ||
| source = address | ||
| vout.firstOrNull() | ||
| ?.scriptPublicKey | ||
| ?.addresses | ||
| ?.firstOrNull() | ||
| ?.let { destination = it } | ||
| val outputs = vout | ||
| .asSequence() | ||
| .filter { it.scriptPublicKey?.addresses?.contains(address) == false } | ||
| .map { it.value.toBigDecimal() } | ||
| .sumOf { it } | ||
| val fee = transaction.fee?.toBigDecimal() ?: BigDecimal.ZERO | ||
| val feeSatoshi = transaction.feeSatoshi?.toBigDecimal() ?: BigDecimal.ZERO | ||
| outputs + fee + feeSatoshi | ||
| }.movePointLeft(blockchain.decimals()) | ||
|
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| BasicTransactionData( | ||
| balanceDif = if (isIncoming) amount else amount.negate(), | ||
| hash = transaction.txid, | ||
| date = Calendar.getInstance().apply { | ||
| timeInMillis = transaction.blockTime | ||
| }, | ||
| isConfirmed = false, | ||
| destination = destination, | ||
| source = source, | ||
| ) | ||
| } | ||
| } | ||
|
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| companion object { | ||
| const val SUPPORTED_SERVER_VERSION = "1.4" | ||
| private const val MINIMAL_NUMBER_OF_CONFIRMATION_BLOCKS = 25 | ||
| private val NORMAL_FEE_MULTIPLIER = 2.5.toBigDecimal() | ||
| private val PRIORITY_FEE_MULTIPLIER = 5.toBigDecimal() | ||
|
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| /** | ||
| * We use 1000, because Electrum node return fee for per 1000 bytes. | ||
| */ | ||
| const val BYTES_IN_KB = 1000 | ||
| } | ||
| } |
24 changes: 19 additions & 5 deletions
24
.../src/main/java/com/tangem/blockchain/common/assembly/impl/Fact0rnWalletManagerAssembly.kt
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