horizontalsystems · abdrasulov · Apr 11, 2024 · Apr 9, 2024 · Apr 9, 2024
diff --git a/app/src/main/java/io/horizontalsystems/bitcoinkit/demo/MainViewModel.kt b/app/src/main/java/io/horizontalsystems/bitcoinkit/demo/MainViewModel.kt
@@ -7,7 +7,12 @@ import io.horizontalsystems.bitcoincore.BitcoinCore.KitState
 import io.horizontalsystems.bitcoincore.core.IPluginData
 import io.horizontalsystems.bitcoincore.exceptions.AddressFormatException
 import io.horizontalsystems.bitcoincore.managers.SendValueErrors
-import io.horizontalsystems.bitcoincore.models.*
+import io.horizontalsystems.bitcoincore.models.BalanceInfo
+import io.horizontalsystems.bitcoincore.models.BitcoinSendInfo
+import io.horizontalsystems.bitcoincore.models.BlockInfo
+import io.horizontalsystems.bitcoincore.models.TransactionDataSortType
+import io.horizontalsystems.bitcoincore.models.TransactionFilterType
+import io.horizontalsystems.bitcoincore.models.TransactionInfo
 import io.horizontalsystems.bitcoinkit.BitcoinKit
 import io.horizontalsystems.hdwalletkit.HDWallet.Purpose
 import io.horizontalsystems.hodler.HodlerData
@@ -156,6 +161,7 @@ class MainViewModel : ViewModel(), BitcoinKit.Listener {
                 try {
                     val transaction = bitcoinKit.send(
                         address!!,
+                        null,
                         amount!!,
                         feeRate = feePriority.feeRate,
                         sortType = TransactionDataSortType.Shuffle,
@@ -182,7 +188,7 @@ class MainViewModel : ViewModel(), BitcoinKit.Listener {
 
     fun onMaxClick() {
         try {
-            amountLiveData.value = bitcoinKit.maximumSpendableValue(address, feePriority.feeRate, null, getPluginData())
+            amountLiveData.value = bitcoinKit.maximumSpendableValue(address, null, feePriority.feeRate, null, getPluginData())
         } catch (e: Exception) {
             amountLiveData.value = 0
             errorLiveData.value = when (e) {
@@ -206,7 +212,7 @@ class MainViewModel : ViewModel(), BitcoinKit.Listener {
     }
 
     private fun fee(value: Long, address: String? = null): BitcoinSendInfo {
-        return bitcoinKit.sendInfo(value, address, feeRate = feePriority.feeRate, unspentOutputs = null, pluginData = getPluginData())
+        return bitcoinKit.sendInfo(value, address, null, feeRate = feePriority.feeRate, unspentOutputs = null, pluginData = getPluginData())
     }
 
     private fun getPluginData(): MutableMap<Byte, IPluginData> {

diff --git a/app/src/main/java/io/horizontalsystems/bitcoinkit/demo/TransactionsFragment.kt b/app/src/main/java/io/horizontalsystems/bitcoinkit/demo/TransactionsFragment.kt
@@ -22,7 +22,8 @@ import io.horizontalsystems.dashkit.models.DashTransactionInfo
 import io.horizontalsystems.hodler.HodlerOutputData
 import io.horizontalsystems.hodler.HodlerPlugin
 import java.text.DateFormat
-import java.util.*
+import java.util.Date
+import java.util.Locale
 
 class TransactionsFragment : Fragment(), ViewHolderTransaction.Listener {
 
@@ -165,6 +166,7 @@ class ViewHolderTransaction(val containerView: View, private val listener: Liste
             sb.append("\n  value: ${it.value}")
             sb.append("\n  mine: ${it.mine}")
             sb.append("\n  change: ${it.changeOutput}")
+            sb.append("\n  memo: ${it.memo}")
 
             if (it.pluginId == HodlerPlugin.id && it.pluginData != null) {
                 (it.pluginData as? HodlerOutputData)?.let { hodlerData ->

diff --git a/bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/AbstractKit.kt b/bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/AbstractKit.kt
@@ -71,6 +71,7 @@ abstract class AbstractKit {
     fun sendInfo(
         value: Long,
         address: String? = null,
+        memo: String?,
         senderPay: Boolean = true,
         feeRate: Int,
         unspentOutputs: List<UnspentOutputInfo>?,
@@ -79,6 +80,7 @@ abstract class AbstractKit {
         return bitcoinCore.sendInfo(
             value = value,
             address = address,
+            memo = memo,
             senderPay = senderPay,
             feeRate = feeRate,
             unspentOutputs = unspentOutputs,
@@ -88,6 +90,7 @@ abstract class AbstractKit {
 
     fun send(
         address: String,
+        memo: String?,
         value: Long,
         senderPay: Boolean = true,
         feeRate: Int,
@@ -96,23 +99,25 @@ abstract class AbstractKit {
         pluginData: Map<Byte, IPluginData> = mapOf(),
         rbfEnabled: Boolean,
     ): FullTransaction {
-        return bitcoinCore.send(address, value, senderPay, feeRate, sortType, unspentOutputs, pluginData, rbfEnabled)
+        return bitcoinCore.send(address, memo, value, senderPay, feeRate, sortType, unspentOutputs, pluginData, rbfEnabled)
     }
 
     fun send(
         address: String,
+        memo: String?,
         value: Long,
         senderPay: Boolean = true,
         feeRate: Int,
         sortType: TransactionDataSortType,
         pluginData: Map<Byte, IPluginData> = mapOf(),
         rbfEnabled: Boolean,
     ): FullTransaction {
-        return bitcoinCore.send(address, value, senderPay, feeRate, sortType, null, pluginData, rbfEnabled)
+        return bitcoinCore.send(address, memo, value, senderPay, feeRate, sortType, null, pluginData, rbfEnabled)
     }
 
     fun send(
         hash: ByteArray,
+        memo: String?,
         scriptType: ScriptType,
         value: Long,
         senderPay: Boolean = true,
@@ -121,23 +126,24 @@ abstract class AbstractKit {
         unspentOutputs: List<UnspentOutputInfo>? = null,
         rbfEnabled: Boolean,
     ): FullTransaction {
-        return bitcoinCore.send(hash, scriptType, value, senderPay, feeRate, sortType, unspentOutputs, rbfEnabled)
+        return bitcoinCore.send(hash, memo, scriptType, value, senderPay, feeRate, sortType, unspentOutputs, rbfEnabled)
     }
 
     fun send(
         hash: ByteArray,
+        memo: String?,
         scriptType: ScriptType,
         value: Long,
         senderPay: Boolean = true,
         feeRate: Int,
         sortType: TransactionDataSortType,
         rbfEnabled: Boolean,
     ): FullTransaction {
-        return bitcoinCore.send(hash, scriptType, value, senderPay, feeRate, sortType, null, rbfEnabled)
+        return bitcoinCore.send(hash, memo, scriptType, value, senderPay, feeRate, sortType, null, rbfEnabled)
     }
 
-    fun redeem(unspentOutput: UnspentOutput, address: String, feeRate: Int, sortType: TransactionDataSortType, rbfEnabled: Boolean): FullTransaction {
-        return bitcoinCore.redeem(unspentOutput, address, feeRate, sortType, rbfEnabled)
+    fun redeem(unspentOutput: UnspentOutput, address: String, memo: String?, feeRate: Int, sortType: TransactionDataSortType, rbfEnabled: Boolean): FullTransaction {
+        return bitcoinCore.redeem(unspentOutput, address, memo, feeRate, sortType, rbfEnabled)
     }
 
     fun receiveAddress(): String {
@@ -180,8 +186,8 @@ abstract class AbstractKit {
         bitcoinCore.watchTransaction(filter, listener)
     }
 
-    fun maximumSpendableValue(address: String?, feeRate: Int, unspentOutputs: List<UnspentOutputInfo>?, pluginData: Map<Byte, IPluginData>): Long {
-        return bitcoinCore.maximumSpendableValue(address, feeRate, unspentOutputs, pluginData)
+    fun maximumSpendableValue(address: String?, memo: String?, feeRate: Int, unspentOutputs: List<UnspentOutputInfo>?, pluginData: Map<Byte, IPluginData>): Long {
+        return bitcoinCore.maximumSpendableValue(address, memo, feeRate, unspentOutputs, pluginData)
     }
 
     fun minimumSpendableValue(address: String?): Int {

diff --git a/bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/BitcoinCore.kt b/bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/BitcoinCore.kt
@@ -187,6 +187,7 @@ class BitcoinCore(
     fun sendInfo(
         value: Long,
         address: String? = null,
+        memo: String?,
         senderPay: Boolean = true,
         feeRate: Int,
         unspentOutputs: List<UnspentOutputInfo>?,
@@ -202,13 +203,15 @@ class BitcoinCore(
             feeRate = feeRate,
             senderPay = senderPay,
             toAddress = address,
+            memo = memo,
             unspentOutputs = outputs,
             pluginData = pluginData
         ) ?: throw CoreError.ReadOnlyCore
     }
 
     fun send(
         address: String,
+        memo: String?,
         value: Long,
         senderPay: Boolean = true,
         feeRate: Int,
@@ -224,6 +227,7 @@ class BitcoinCore(
         }
         return transactionCreator?.create(
             toAddress = address,
+            memo = memo,
             value = value,
             feeRate = feeRate,
             senderPay = senderPay,
@@ -236,6 +240,7 @@ class BitcoinCore(
 
     fun send(
         hash: ByteArray,
+        memo: String?,
         scriptType: ScriptType,
         value: Long,
         senderPay: Boolean = true,
@@ -252,6 +257,7 @@ class BitcoinCore(
         }
         return transactionCreator?.create(
             toAddress = address.stringValue,
+            memo = memo,
             value = value,
             feeRate = feeRate,
             senderPay = senderPay,
@@ -262,8 +268,8 @@ class BitcoinCore(
         ) ?: throw CoreError.ReadOnlyCore
     }
 
-    fun redeem(unspentOutput: UnspentOutput, address: String, feeRate: Int, sortType: TransactionDataSortType, rbfEnabled: Boolean): FullTransaction {
-        return transactionCreator?.create(unspentOutput, address, feeRate, sortType, rbfEnabled) ?: throw CoreError.ReadOnlyCore
+    fun redeem(unspentOutput: UnspentOutput, address: String, memo: String?, feeRate: Int, sortType: TransactionDataSortType, rbfEnabled: Boolean): FullTransaction {
+        return transactionCreator?.create(unspentOutput, address, memo, feeRate, sortType, rbfEnabled) ?: throw CoreError.ReadOnlyCore
     }
 
     fun receiveAddress(): String {
@@ -406,6 +412,7 @@ class BitcoinCore(
 
     fun maximumSpendableValue(
         address: String?,
+        memo: String?,
         feeRate: Int,
         unspentOutputs: List<UnspentOutputInfo>?,
         pluginData: Map<Byte, IPluginData>
@@ -425,6 +432,7 @@ class BitcoinCore(
             feeRate = feeRate,
             senderPay = false,
             toAddress = address,
+            memo = memo,
             unspentOutputs = outputs,
             pluginData = pluginData
         ).fee

diff --git a/...ore/src/main/kotlin/io/horizontalsystems/bitcoincore/core/BaseTransactionInfoConverter.kt b/...ore/src/main/kotlin/io/horizontalsystems/bitcoincore/core/BaseTransactionInfoConverter.kt
@@ -1,8 +1,19 @@
 package io.horizontalsystems.bitcoincore.core
 
 import io.horizontalsystems.bitcoincore.extensions.toReversedHex
-import io.horizontalsystems.bitcoincore.models.*
+import io.horizontalsystems.bitcoincore.io.BitcoinInput
+import io.horizontalsystems.bitcoincore.models.InvalidTransaction
+import io.horizontalsystems.bitcoincore.models.Transaction
+import io.horizontalsystems.bitcoincore.models.TransactionInfo
+import io.horizontalsystems.bitcoincore.models.TransactionInputInfo
+import io.horizontalsystems.bitcoincore.models.TransactionMetadata
+import io.horizontalsystems.bitcoincore.models.TransactionOutput
+import io.horizontalsystems.bitcoincore.models.TransactionOutputInfo
+import io.horizontalsystems.bitcoincore.models.TransactionStatus
+import io.horizontalsystems.bitcoincore.models.rbfEnabled
 import io.horizontalsystems.bitcoincore.storage.FullTransactionInfo
+import io.horizontalsystems.bitcoincore.transactions.scripts.ScriptType
+import java.io.ByteArrayInputStream
 
 class BaseTransactionInfoConverter(private val pluginManager: PluginManager) {
 
@@ -37,6 +48,7 @@ class BaseTransactionInfoConverter(private val pluginManager: PluginManager) {
                     changeOutput = output.changeOutput,
                     value = output.value,
                     address = output.address,
+                    memo = parseMemo(output),
                     pluginId = output.pluginId,
                     pluginDataString = output.pluginData,
                     pluginData = pluginManager.parsePluginData(output, transaction.timestamp))
@@ -63,6 +75,16 @@ class BaseTransactionInfoConverter(private val pluginManager: PluginManager) {
         )
     }
 
+    private fun parseMemo(output: TransactionOutput): String? {
+        if (output.scriptType != ScriptType.NULL_DATA) return null
+        val payload = output.lockingScriptPayload ?: return null
+        if (payload.isEmpty()) return null
+
+        val input = BitcoinInput(ByteArrayInputStream(payload))
+        input.readByte() // op_return
+        return input.readString()
+    }
+
     private fun getInvalidTransactionInfo(
         transaction: InvalidTransaction,
         metadata: TransactionMetadata

diff --git a/bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/core/Interfaces.kt b/bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/core/Interfaces.kt
@@ -195,7 +195,8 @@ interface IRecipientSetter {
         toAddress: String,
         value: Long,
         pluginData: Map<Byte, IPluginData>,
-        skipChecking: Boolean
+        skipChecking: Boolean,
+        memo: String?
     )
 }
 

diff --git a/...ncore/src/main/kotlin/io/horizontalsystems/bitcoincore/managers/IUnspentOutputSelector.kt b/...ncore/src/main/kotlin/io/horizontalsystems/bitcoincore/managers/IUnspentOutputSelector.kt
@@ -4,7 +4,15 @@ import io.horizontalsystems.bitcoincore.storage.UnspentOutput
 import io.horizontalsystems.bitcoincore.transactions.scripts.ScriptType
 
 interface IUnspentOutputSelector {
-    fun select(value: Long, feeRate: Int, outputScriptType: ScriptType = ScriptType.P2PKH, changeType: ScriptType = ScriptType.P2PKH, senderPay: Boolean, pluginDataOutputSize: Int): SelectedUnspentOutputInfo
+    fun select(
+        value: Long,
+        memo: String?,
+        feeRate: Int,
+        outputScriptType: ScriptType = ScriptType.P2PKH,
+        changeType: ScriptType = ScriptType.P2PKH,
+        senderPay: Boolean,
+        pluginDataOutputSize: Int
+    ): SelectedUnspentOutputInfo
 }
 
 data class SelectedUnspentOutputInfo(
@@ -27,12 +35,28 @@ class UnspentOutputSelectorChain(private val unspentOutputProvider: IUnspentOutp
     val all: List<UnspentOutput>
         get() = unspentOutputProvider.getSpendableUtxo()
 
-    override fun select(value: Long, feeRate: Int, outputScriptType: ScriptType, changeType: ScriptType, senderPay: Boolean, pluginDataOutputSize: Int): SelectedUnspentOutputInfo {
+    override fun select(
+        value: Long,
+        memo: String?,
+        feeRate: Int,
+        outputScriptType: ScriptType,
+        changeType: ScriptType,
+        senderPay: Boolean,
+        pluginDataOutputSize: Int
+    ): SelectedUnspentOutputInfo {
         var lastError: SendValueErrors? = null
 
         for (selector in concreteSelectors) {
             try {
-                return selector.select(value, feeRate, outputScriptType, changeType, senderPay, pluginDataOutputSize)
+                return selector.select(
+                    value,
+                    memo,
+                    feeRate,
+                    outputScriptType,
+                    changeType,
+                    senderPay,
+                    pluginDataOutputSize
+                )
             } catch (e: SendValueErrors) {
                 lastError = e
             }

diff --git a/bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/managers/UnspentOutputQueue.kt b/bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/managers/UnspentOutputQueue.kt
@@ -60,6 +60,7 @@ class UnspentOutputQueue(
         sizeCalculator.transactionSize(
             previousOutputs = selectedOutputs.map { it.output },
             outputs = listOf(parameters.outputScriptType),
+            memo = parameters.memo,
             pluginDataOutputSize = parameters.pluginDataOutputSize
         ) * parameters.fee
 
@@ -83,6 +84,7 @@ class UnspentOutputQueue(
     data class Parameters(
         val value: Long,
         val senderPay: Boolean,
+        val memo: String?,
         val fee: Int,
         val outputsLimit: Int?,
         val outputScriptType: ScriptType,

diff --git a/...incore/src/main/kotlin/io/horizontalsystems/bitcoincore/managers/UnspentOutputSelector.kt b/...incore/src/main/kotlin/io/horizontalsystems/bitcoincore/managers/UnspentOutputSelector.kt
@@ -18,6 +18,7 @@ class UnspentOutputSelector(
     @Throws(SendValueErrors::class)
     override fun select(
         value: Long,
+        memo: String?,
         feeRate: Int,
         outputScriptType: ScriptType,
         changeType: ScriptType,
@@ -39,6 +40,7 @@ class UnspentOutputSelector(
         val params = UnspentOutputQueue.Parameters(
             value = value,
             senderPay = senderPay,
+            memo = memo,
             fee = feeRate,
             outputsLimit = outputsLimit,
             outputScriptType = outputScriptType,

diff --git a/...n/kotlin/io/horizontalsystems/bitcoincore/managers/UnspentOutputSelectorSingleNoChange.kt b/...n/kotlin/io/horizontalsystems/bitcoincore/managers/UnspentOutputSelectorSingleNoChange.kt
@@ -13,6 +13,7 @@ class UnspentOutputSelectorSingleNoChange(
 
     override fun select(
         value: Long,
+        memo: String?,
         feeRate: Int,
         outputScriptType: ScriptType,
         changeType: ScriptType,
@@ -42,6 +43,7 @@ class UnspentOutputSelectorSingleNoChange(
         val params = UnspentOutputQueue.Parameters(
             value = value,
             senderPay = senderPay,
+            memo = memo,
             fee = feeRate,
             outputsLimit = null,
             outputScriptType = outputScriptType,