Add flag for enabling RB

app/src/main/java/io/horizontalsystems/bitcoinkit/demo/MainViewModel.kt

@@ -159,7 +159,8 @@ class MainViewModel : ViewModel(), BitcoinKit.Listener {
                         amount!!,
                         feeRate = feePriority.feeRate,
                         sortType = TransactionDataSortType.Shuffle,
-                        pluginData = getPluginData()
+                        pluginData = getPluginData(),
+                        rbfEnabled = true
                     )
 
                     amountLiveData.value = null

bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/AbstractKit.kt

@@ -90,9 +90,10 @@ abstract class AbstractKit {
         feeRate: Int,
         sortType: TransactionDataSortType,
         unspentOutputs: List<UnspentOutputInfo>? = null,
-        pluginData: Map<Byte, IPluginData> = mapOf()
+        pluginData: Map<Byte, IPluginData> = mapOf(),
+        rbfEnabled: Boolean,
     ): FullTransaction {
-        return bitcoinCore.send(address, value, senderPay, feeRate, sortType, unspentOutputs, pluginData)
+        return bitcoinCore.send(address, value, senderPay, feeRate, sortType, unspentOutputs, pluginData, rbfEnabled)
     }
 
     fun send(
@@ -101,9 +102,10 @@ abstract class AbstractKit {
         senderPay: Boolean = true,
         feeRate: Int,
         sortType: TransactionDataSortType,
-        pluginData: Map<Byte, IPluginData> = mapOf()
+        pluginData: Map<Byte, IPluginData> = mapOf(),
+        rbfEnabled: Boolean,
     ): FullTransaction {
-        return bitcoinCore.send(address, value, senderPay, feeRate, sortType, null, pluginData)
+        return bitcoinCore.send(address, value, senderPay, feeRate, sortType, null, pluginData, rbfEnabled)
     }
 
     fun send(
@@ -114,8 +116,9 @@ abstract class AbstractKit {
         feeRate: Int,
         sortType: TransactionDataSortType,
         unspentOutputs: List<UnspentOutputInfo>? = null,
+        rbfEnabled: Boolean,
     ): FullTransaction {
-        return bitcoinCore.send(hash, scriptType, value, senderPay, feeRate, sortType, unspentOutputs)
+        return bitcoinCore.send(hash, scriptType, value, senderPay, feeRate, sortType, unspentOutputs, rbfEnabled)
     }
 
     fun send(
@@ -125,12 +128,13 @@ abstract class AbstractKit {
         senderPay: Boolean = true,
         feeRate: Int,
         sortType: TransactionDataSortType,
+        rbfEnabled: Boolean,
     ): FullTransaction {
-        return bitcoinCore.send(hash, scriptType, value, senderPay, feeRate, sortType, null)
+        return bitcoinCore.send(hash, scriptType, value, senderPay, feeRate, sortType, null, rbfEnabled)
     }
 
-    fun redeem(unspentOutput: UnspentOutput, address: String, feeRate: Int, sortType: TransactionDataSortType): FullTransaction {
-        return bitcoinCore.redeem(unspentOutput, address, feeRate, sortType)
+    fun redeem(unspentOutput: UnspentOutput, address: String, feeRate: Int, sortType: TransactionDataSortType, rbfEnabled: Boolean): FullTransaction {
+        return bitcoinCore.redeem(unspentOutput, address, feeRate, sortType, rbfEnabled)
     }
 
     fun receiveAddress(): String {

bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/BitcoinCore.kt

@@ -207,7 +207,8 @@ class BitcoinCore(
         feeRate: Int,
         sortType: TransactionDataSortType,
         unspentOutputs: List<UnspentOutputInfo>?,
-        pluginData: Map<Byte, IPluginData>
+        pluginData: Map<Byte, IPluginData>,
+        rbfEnabled: Boolean
     ): FullTransaction {
         val outputs = unspentOutputs?.mapNotNull {
             unspentOutputSelector.all.firstOrNull { unspentOutput ->
@@ -221,7 +222,8 @@ class BitcoinCore(
             senderPay = senderPay,
             sortType = sortType,
             unspentOutputs = outputs,
-            pluginData = pluginData
+            pluginData = pluginData,
+            rbfEnabled = rbfEnabled
         ) ?: throw CoreError.ReadOnlyCore
     }
 
@@ -233,6 +235,7 @@ class BitcoinCore(
         feeRate: Int,
         sortType: TransactionDataSortType,
         unspentOutputs: List<UnspentOutputInfo>?,
+        rbfEnabled: Boolean
     ): FullTransaction {
         val address = addressConverter.convert(hash, scriptType)
         val outputs = unspentOutputs?.mapNotNull {
@@ -247,12 +250,13 @@ class BitcoinCore(
             senderPay = senderPay,
             sortType = sortType,
             unspentOutputs = outputs,
-            pluginData = mapOf()
+            pluginData = mapOf(),
+            rbfEnabled = rbfEnabled
         ) ?: throw CoreError.ReadOnlyCore
     }
 
-    fun redeem(unspentOutput: UnspentOutput, address: String, feeRate: Int, sortType: TransactionDataSortType): FullTransaction {
-        return transactionCreator?.create(unspentOutput, address, feeRate, sortType) ?: 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 receiveAddress(): String {

bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/transactions/TransactionCreator.kt

@@ -22,7 +22,8 @@ class TransactionCreator(
         senderPay: Boolean,
         sortType: TransactionDataSortType,
         unspentOutputs: List<UnspentOutput>?,
-        pluginData: Map<Byte, IPluginData>
+        pluginData: Map<Byte, IPluginData>,
+        rbfEnabled: Boolean
     ): FullTransaction {
         return create {
             builder.buildTransaction(
@@ -32,7 +33,8 @@ class TransactionCreator(
                 senderPay = senderPay,
                 sortType = sortType,
                 unspentOutputs = unspentOutputs,
-                pluginData = pluginData
+                pluginData = pluginData,
+                rbfEnabled = rbfEnabled
             )
         }
     }
@@ -42,10 +44,11 @@ class TransactionCreator(
         unspentOutput: UnspentOutput,
         toAddress: String,
         feeRate: Int,
-        sortType: TransactionDataSortType
+        sortType: TransactionDataSortType,
+        rbfEnabled: Boolean
     ): FullTransaction {
         return create {
-            builder.buildTransaction(unspentOutput, toAddress, feeRate, sortType)
+            builder.buildTransaction(unspentOutput, toAddress, feeRate, sortType, rbfEnabled)
         }
     }
 

bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/transactions/TransactionFeeCalculator.kt

@@ -42,7 +42,8 @@ class TransactionFeeCalculator(
             feeRate = feeRate,
             senderPay = senderPay,
             unspentOutputs = unspentOutputs,
-            sortType = TransactionDataSortType.None
+            sortType = TransactionDataSortType.None,
+            rbfEnabled = false
         )
 
         val inputsTotalValue = mutableTransaction.inputsToSign.sumOf { it.previousOutput.value }

bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/transactions/builder/InputSetter.kt

@@ -30,7 +30,8 @@ class InputSetter(
     fun setInputs(
         mutableTransaction: MutableTransaction,
         unspentOutput: UnspentOutput,
-        feeRate: Int
+        feeRate: Int,
+        rbfEnabled: Boolean
     ) {
         if (unspentOutput.output.scriptType != ScriptType.P2SH) {
             throw TransactionBuilder.BuilderException.NotSupportedScriptType()
@@ -49,7 +50,7 @@ class InputSetter(
         if (value < fee) {
             throw TransactionBuilder.BuilderException.FeeMoreThanValue()
         }
-        mutableTransaction.addInput(inputToSign(unspentOutput))
+        mutableTransaction.addInput(inputToSign(unspentOutput, rbfEnabled))
         mutableTransaction.recipientValue = value - fee
     }
 
@@ -59,7 +60,8 @@ class InputSetter(
         feeRate: Int,
         senderPay: Boolean,
         unspentOutputs: List<UnspentOutput>?,
-        sortType: TransactionDataSortType
+        sortType: TransactionDataSortType,
+        rbfEnabled: Boolean
     ): OutputInfo {
         val unspentOutputInfo: SelectedUnspentOutputInfo
         if (unspentOutputs != null) {
@@ -95,7 +97,7 @@ class InputSetter(
             transactionDataSorterFactory.sorter(sortType).sortUnspents(unspentOutputInfo.outputs)
 
         for (unspentOutput in sortedUnspentOutputs) {
-            mutableTransaction.addInput(inputToSign(unspentOutput))
+            mutableTransaction.addInput(inputToSign(unspentOutput, rbfEnabled))
         }
 
         mutableTransaction.recipientValue = unspentOutputInfo.recipientValue
@@ -118,10 +120,14 @@ class InputSetter(
         )
     }
 
-    private fun inputToSign(unspentOutput: UnspentOutput): InputToSign {
+    private fun inputToSign(unspentOutput: UnspentOutput, rbfEnabled: Boolean): InputToSign {
         val previousOutput = unspentOutput.output
-        val transactionInput =
-            TransactionInput(previousOutput.transactionHash, previousOutput.index.toLong())
+        val sequence = if (rbfEnabled) {
+            0x00
+        } else {
+            0xfffffffe
+        }
+        val transactionInput = TransactionInput(previousOutput.transactionHash, previousOutput.index.toLong(), sequence = sequence)
 
         return InputToSign(transactionInput, previousOutput, unspentOutput.publicKey)
     }

bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/transactions/builder/TransactionBuilder.kt

@@ -7,18 +7,27 @@ import io.horizontalsystems.bitcoincore.storage.FullTransaction
 import io.horizontalsystems.bitcoincore.storage.UnspentOutput
 
 class TransactionBuilder(
-        private val recipientSetter: IRecipientSetter,
-        private val outputSetter: OutputSetter,
-        private val inputSetter: InputSetter,
-        private val signer: TransactionSigner,
-        private val lockTimeSetter: LockTimeSetter
+    private val recipientSetter: IRecipientSetter,
+    private val outputSetter: OutputSetter,
+    private val inputSetter: InputSetter,
+    private val signer: TransactionSigner,
+    private val lockTimeSetter: LockTimeSetter
 ) {
 
-    fun buildTransaction(toAddress: String, value: Long, feeRate: Int, senderPay: Boolean, sortType: TransactionDataSortType, unspentOutputs: List<UnspentOutput>?, pluginData: Map<Byte, IPluginData>): FullTransaction {
+    fun buildTransaction(
+        toAddress: String,
+        value: Long,
+        feeRate: Int,
+        senderPay: Boolean,
+        sortType: TransactionDataSortType,
+        unspentOutputs: List<UnspentOutput>?,
+        pluginData: Map<Byte, IPluginData>,
+        rbfEnabled: Boolean
+    ): FullTransaction {
         val mutableTransaction = MutableTransaction()
 
         recipientSetter.setRecipient(mutableTransaction, toAddress, value, pluginData, false)
-        inputSetter.setInputs(mutableTransaction, feeRate, senderPay, unspentOutputs, sortType)
+        inputSetter.setInputs(mutableTransaction, feeRate, senderPay, unspentOutputs, sortType, rbfEnabled)
         lockTimeSetter.setLockTime(mutableTransaction)
 
         outputSetter.setOutputs(mutableTransaction, sortType)
@@ -27,11 +36,17 @@ class TransactionBuilder(
         return mutableTransaction.build()
     }
 
-    fun buildTransaction(unspentOutput: UnspentOutput, toAddress: String, feeRate: Int, sortType: TransactionDataSortType): FullTransaction {
+    fun buildTransaction(
+        unspentOutput: UnspentOutput,
+        toAddress: String,
+        feeRate: Int,
+        sortType: TransactionDataSortType,
+        rbfEnabled: Boolean
+    ): FullTransaction {
         val mutableTransaction = MutableTransaction(false)
 
         recipientSetter.setRecipient(mutableTransaction, toAddress, unspentOutput.output.value, mapOf(), false)
-        inputSetter.setInputs(mutableTransaction, unspentOutput, feeRate)
+        inputSetter.setInputs(mutableTransaction, unspentOutput, feeRate, rbfEnabled)
         lockTimeSetter.setLockTime(mutableTransaction)
 
         outputSetter.setOutputs(mutableTransaction, sortType)