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Merge remote-tracking branch 'open/master' into andrius-merge-1503

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This commit is contained in:
Andrius Dagys 2018-03-15 15:07:55 +00:00
commit 0d1e9694ae
29 changed files with 586 additions and 430 deletions
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6
.ci/api-current.txt
View File

@ -1469,7 +1469,7 @@ public abstract static class net.corda.core.flows.NotaryFlow$Service extends net
@co.paralleluniverse.fibers.Suspendable protected final void checkNotary(net.corda.core.identity.Party)
@org.jetbrains.annotations.NotNull public final net.corda.core.flows.FlowSession getOtherSideSession()
@org.jetbrains.annotations.NotNull public final net.corda.core.node.services.TrustedAuthorityNotaryService getService()
@co.paralleluniverse.fibers.Suspendable @org.jetbrains.annotations.NotNull public abstract net.corda.core.flows.TransactionParts receiveAndVerifyTx()
@co.paralleluniverse.fibers.Suspendable @org.jetbrains.annotations.NotNull protected abstract net.corda.core.flows.TransactionParts validateRequest(net.corda.core.flows.NotarisationPayload)
##
public final class net.corda.core.flows.ReceiveStateAndRefFlow extends net.corda.core.flows.FlowLogic
public <init>(net.corda.core.flows.FlowSession)
@ -2078,7 +2078,7 @@ public final class net.corda.core.node.services.TimeWindowChecker extends java.l
##
@net.corda.core.serialization.CordaSerializable public abstract class net.corda.core.node.services.TrustedAuthorityNotaryService extends net.corda.core.node.services.NotaryService
public <init>()
public final void commitInputStates(List, net.corda.core.crypto.SecureHash, net.corda.core.identity.Party)
public final void commitInputStates(List, net.corda.core.crypto.SecureHash, net.corda.core.identity.Party, net.corda.core.flows.NotarisationRequestSignature)
@org.jetbrains.annotations.NotNull protected org.slf4j.Logger getLog()
@org.jetbrains.annotations.NotNull protected net.corda.core.node.services.TimeWindowChecker getTimeWindowChecker()
@org.jetbrains.annotations.NotNull protected abstract net.corda.core.node.services.UniquenessProvider getUniquenessProvider()
@ -2094,7 +2094,7 @@ public static final class net.corda.core.node.services.TrustedAuthorityNotarySer
@org.jetbrains.annotations.NotNull public final net.corda.core.node.services.UniquenessProvider$Conflict getError()
##
public interface net.corda.core.node.services.UniquenessProvider
public abstract void commit(List, net.corda.core.crypto.SecureHash, net.corda.core.identity.Party)
public abstract void commit(List, net.corda.core.crypto.SecureHash, net.corda.core.identity.Party, net.corda.core.flows.NotarisationRequestSignature)
##
@net.corda.core.serialization.CordaSerializable public static final class net.corda.core.node.services.UniquenessProvider$Conflict extends java.lang.Object
public <init>(Map)

13
core/src/main/kotlin/net/corda/core/flows/NotaryFlow.kt
View File

@ -137,7 +137,7 @@ class NotaryFlow {
* It checks that the time-window command is valid (if present) and commits the input state, or returns a conflict
* if any of the input states have been previously committed.
*
* Additional transaction validation logic can be added when implementing [receiveAndVerifyTx].
* Additional transaction validation logic can be added when implementing [validateRequest].
*/
// See AbstractStateReplacementFlow.Acceptor for why it's Void?
abstract class Service(val otherSideSession: FlowSession, val service: TrustedAuthorityNotaryService) : FlowLogic<Void?>() {
@ -147,13 +147,15 @@ class NotaryFlow {
check(serviceHub.myInfo.legalIdentities.any { serviceHub.networkMapCache.isNotary(it) }) {
"We are not a notary on the network"
}
val requestPayload = otherSideSession.receive<NotarisationPayload>().unwrap { it }
var txId: SecureHash? = null
try {
val parts = receiveAndVerifyTx()
val parts = validateRequest(requestPayload)
txId = parts.id
checkNotary(parts.notary)
service.validateTimeWindow(parts.timestamp)
service.commitInputStates(parts.inputs, txId, otherSideSession.counterparty)
service.commitInputStates(parts.inputs, txId, otherSideSession.counterparty, requestPayload.requestSignature)
signTransactionAndSendResponse(txId)
} catch (e: NotaryInternalException) {
throw NotaryException(e.error, txId)
@ -162,11 +164,10 @@ class NotaryFlow {
}
/**
* Implement custom logic to receive the transaction to notarise, and perform verification based on validity and
* privacy requirements.
* Implement custom logic to perform transaction verification based on validity and privacy requirements.
*/
@Suspendable
abstract fun receiveAndVerifyTx(): TransactionParts
protected abstract fun validateRequest(requestPayload: NotarisationPayload): TransactionParts
/** Check if transaction is intended to be signed by this notary. */
@Suspendable

3
core/src/main/kotlin/net/corda/core/internal/InternalUtils.kt
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@ -407,10 +407,9 @@ fun createCordappContext(cordapp: Cordapp, attachmentId: SecureHash?, classLoade
}
/** Verifies that the correct notarisation request was signed by the counterparty. */
fun NotaryFlow.Service.validateRequest(request: NotarisationRequest, signature: NotarisationRequestSignature) {
fun NotaryFlow.Service.validateRequestSignature(request: NotarisationRequest, signature: NotarisationRequestSignature) {
val requestingParty = otherSideSession.counterparty
request.verifySignature(signature, requestingParty)
// TODO: persist the signature for traceability. Do we need to persist the request as well?
}
/** Creates a signature over the notarisation request using the legal identity key. */

4
core/src/main/kotlin/net/corda/core/node/services/NotaryService.kt
View File

@ -89,9 +89,9 @@ abstract class TrustedAuthorityNotaryService : NotaryService() {
* A NotaryException is thrown if any of the states have been consumed by a different transaction. Note that
* this method does not throw an exception when input states are present multiple times within the transaction.
*/
fun commitInputStates(inputs: List<StateRef>, txId: SecureHash, caller: Party) {
fun commitInputStates(inputs: List<StateRef>, txId: SecureHash, caller: Party, requestSignature: NotarisationRequestSignature) {
try {
uniquenessProvider.commit(inputs, txId, caller)
uniquenessProvider.commit(inputs, txId, caller, requestSignature)
} catch (e: NotaryInternalException) {
if (e.error is NotaryError.Conflict) {
val conflicts = inputs.filterIndexed { _, stateRef ->

5
core/src/main/kotlin/net/corda/core/node/services/UniquenessProvider.kt
View File

@ -13,6 +13,7 @@ package net.corda.core.node.services
import net.corda.core.CordaException
import net.corda.core.contracts.StateRef
import net.corda.core.crypto.SecureHash
import net.corda.core.flows.NotarisationRequestSignature
import net.corda.core.identity.Party
import net.corda.core.serialization.CordaSerializable
@ -24,11 +25,12 @@ import net.corda.core.serialization.CordaSerializable
*/
interface UniquenessProvider {
/** Commits all input states of the given transaction. */
fun commit(states: List<StateRef>, txId: SecureHash, callerIdentity: Party)
fun commit(states: List<StateRef>, txId: SecureHash, callerIdentity: Party, requestSignature: NotarisationRequestSignature)
/** Specifies the consuming transaction for every conflicting state. */
@CordaSerializable
@Deprecated("No longer used due to potential privacy leak")
@Suppress("DEPRECATION")
data class Conflict(val stateHistory: Map<StateRef, ConsumingTx>)
/**
@ -36,6 +38,7 @@ interface UniquenessProvider {
* the caller identity requesting the commit.
*/
@CordaSerializable
@Deprecated("No longer used")
data class ConsumingTx(val id: SecureHash, val inputIndex: Int, val requestingParty: Party)
}

31
core/src/test/kotlin/net/corda/core/serialization/NotaryExceptionSerializationTest.kt Normal file
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@ -0,0 +1,31 @@
package net.corda.core.serialization
import net.corda.core.contracts.StateRef
import net.corda.core.crypto.SecureHash
import net.corda.core.crypto.sha256
import net.corda.core.flows.NotaryError
import net.corda.core.flows.NotaryException
import net.corda.core.flows.StateConsumptionDetails
import net.corda.testing.core.SerializationEnvironmentRule
import org.junit.Rule
import org.junit.Test
import kotlin.test.assertEquals
class NotaryExceptionSerializationTest {
@Rule
@JvmField
val testSerialization = SerializationEnvironmentRule()
@Test
fun testSerializationRoundTrip() {
val txhash = SecureHash.randomSHA256()
val stateHistory: Map<StateRef, StateConsumptionDetails> = mapOf(
StateRef(txhash, 0) to StateConsumptionDetails(txhash.sha256())
)
val error = NotaryError.Conflict(txhash, stateHistory)
val instance = NotaryException(error)
val instanceOnTheOtherSide = instance.serialize().bytes.deserialize<NotaryException>()
assertEquals(instance.error, instanceOnTheOtherSide.error)
}
}

43
core/src/test/kotlin/net/corda/core/serialization/UniquenessExceptionSerializationTest.kt
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@ -1,43 +0,0 @@
/*
* R3 Proprietary and Confidential
*
* Copyright (c) 2018 R3 Limited. All rights reserved.
*
* The intellectual and technical concepts contained herein are proprietary to R3 and its suppliers and are protected by trade secret law.
*
* Distribution of this file or any portion thereof via any medium without the express permission of R3 is strictly prohibited.
*/
package net.corda.core.serialization
import net.corda.core.contracts.StateRef
import net.corda.core.crypto.SecureHash
import net.corda.core.crypto.generateKeyPair
import net.corda.core.identity.CordaX500Name
import net.corda.core.identity.Party
import net.corda.core.node.services.UniquenessException
import net.corda.core.node.services.UniquenessProvider
import net.corda.testing.core.SerializationEnvironmentRule
import org.junit.Rule
import org.junit.Test
import kotlin.test.assertEquals
class UniquenessExceptionSerializationTest {
@Rule
@JvmField
val testSerialization = SerializationEnvironmentRule()
@Test
fun testSerializationRoundTrip() {
val txhash = SecureHash.randomSHA256()
val txHash2 = SecureHash.randomSHA256()
val dummyParty = Party(CordaX500Name("Dummy", "Madrid", "ES"), generateKeyPair().public)
val stateHistory: Map<StateRef, UniquenessProvider.ConsumingTx> = mapOf(StateRef(txhash, 0) to UniquenessProvider.ConsumingTx(txHash2, 1, dummyParty))
val conflict = UniquenessProvider.Conflict(stateHistory)
val instance = UniquenessException(conflict)
val instanceOnTheOtherSide = instance.serialize().deserialize()
assertEquals(instance.error, instanceOnTheOtherSide.error)
}
}

4
docs/source/changelog.rst
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@ -13,6 +13,10 @@ UNRELEASED
* Introduced a placeholder for custom properties within ``node.conf``; the property key is "custom".
* java.math.BigInteger serialization support added.
* java.security.cert.CRLReason added to the default Whitelist.
* Added ``NetworkMapCache.getNodesByLegalName`` for querying nodes belonging to a distributed service such as a notary cluster
where they all share a common identity. ``NetworkMapCache.getNodeByLegalName`` has been tightened to throw if more than
one node with the legal name is found.

1
node-api/src/main/kotlin/net/corda/nodeapi/internal/serialization/amqp/AMQPSerializationScheme.kt
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@ -63,6 +63,7 @@ abstract class AbstractAMQPSerializationScheme(val cordappLoader: List<Cordapp>)
register(net.corda.nodeapi.internal.serialization.amqp.custom.PrivateKeySerializer)
register(net.corda.nodeapi.internal.serialization.amqp.custom.ThrowableSerializer(this))
register(net.corda.nodeapi.internal.serialization.amqp.custom.BigDecimalSerializer)
register(net.corda.nodeapi.internal.serialization.amqp.custom.BigIntegerSerializer)
register(net.corda.nodeapi.internal.serialization.amqp.custom.CurrencySerializer)
register(net.corda.nodeapi.internal.serialization.amqp.custom.OpaqueBytesSubSequenceSerializer(this))
register(net.corda.nodeapi.internal.serialization.amqp.custom.InstantSerializer(this))

11
node-api/src/main/kotlin/net/corda/nodeapi/internal/serialization/amqp/custom/BigIntegerSerializer.kt Normal file
View File

@ -0,0 +1,11 @@
package net.corda.nodeapi.internal.serialization.amqp.custom
import net.corda.nodeapi.internal.serialization.amqp.CustomSerializer
import java.math.BigInteger
/**
* A serializer for [BigInteger], utilising the string based helper. [BigInteger] seems to have no import/export
* features that are precision independent other than via a string. The format of the string is discussed in the
* documentation for [BigInteger.toString].
*/
object BigIntegerSerializer : CustomSerializer.ToString<BigInteger>(BigInteger::class.java)

16
node-api/src/test/kotlin/net/corda/nodeapi/internal/serialization/amqp/SerializationOutputTests.kt
View File

@ -50,6 +50,7 @@ import java.io.ByteArrayInputStream
import java.io.IOException
import java.io.NotSerializableException
import java.math.BigDecimal
import java.math.BigInteger
import java.time.*
import java.time.temporal.ChronoUnit
import java.util.*
@ -986,6 +987,21 @@ class SerializationOutputTests(private val compression: CordaSerializationEncodi
assertEquals(objCopy.a, objCopy.b)
}
data class BigIntegers(val a: BigInteger, val b: BigInteger)
@Test
fun `test BigInteger custom serializer`() {
val factory = SerializerFactory(AllWhitelist, ClassLoader.getSystemClassLoader())
factory.register(net.corda.nodeapi.internal.serialization.amqp.custom.BigIntegerSerializer)
val factory2 = SerializerFactory(AllWhitelist, ClassLoader.getSystemClassLoader())
factory2.register(net.corda.nodeapi.internal.serialization.amqp.custom.BigIntegerSerializer)
val obj = BigIntegers(BigInteger.TEN, BigInteger.TEN)
val objCopy = serdes(obj, factory, factory2)
assertEquals(objCopy.a, objCopy.b)
}
data class ByteArrays(val a: ByteArray, val b: ByteArray)
@Test

2
node/src/main/kotlin/net/corda/node/internal/AbstractNode.kt
View File

@ -692,7 +692,7 @@ abstract class AbstractNode(val configuration: NodeConfiguration,
return notaryConfig.run {
when {
raft != null -> {
val uniquenessProvider = RaftUniquenessProvider(configuration, database, services.monitoringService.metrics, raft)
val uniquenessProvider = RaftUniquenessProvider(configuration, database, services.clock, services.monitoringService.metrics, raft)
(if (validating) ::RaftValidatingNotaryService else ::RaftNonValidatingNotaryService)(services, notaryKey, uniquenessProvider)
}
bftSMaRt != null -> {

9
node/src/main/kotlin/net/corda/node/services/schema/NodeSchemaService.kt
View File

@ -66,10 +66,11 @@ class NodeSchemaService(extraSchemas: Set<MappedSchema> = emptySet(), includeNot
object NodeNotary
object NodeNotaryV1 : MappedSchema(schemaFamily = NodeNotary.javaClass, version = 1,
mappedTypes = listOf(PersistentUniquenessProvider.PersistentUniqueness::class.java,
PersistentUniquenessProvider.PersistentNotaryCommit::class.java,
RaftUniquenessProvider.RaftState::class.java,
BFTNonValidatingNotaryService.PersistedCommittedState::class.java
mappedTypes = listOf(PersistentUniquenessProvider.BaseComittedState::class.java,
PersistentUniquenessProvider.Request::class.java,
PersistentUniquenessProvider.CommittedState::class.java,
RaftUniquenessProvider.CommittedState::class.java,
BFTNonValidatingNotaryService.CommittedState::class.java
)) {
override val migrationResource = "node-notary.changelog-master"
}

46
node/src/main/kotlin/net/corda/node/services/transactions/BFTNonValidatingNotaryService.kt
View File

@ -13,14 +13,11 @@ package net.corda.node.services.transactions
import co.paralleluniverse.fibers.Suspendable
import com.google.common.util.concurrent.SettableFuture
import net.corda.core.contracts.StateRef
import net.corda.core.crypto.Crypto
import net.corda.core.crypto.SecureHash
import net.corda.core.crypto.SignedData
import net.corda.core.flows.*
import net.corda.core.identity.CordaX500Name
import net.corda.core.identity.Party
import net.corda.core.node.services.NotaryService
import net.corda.core.node.services.UniquenessProvider
import net.corda.core.schemas.PersistentStateRef
import net.corda.core.serialization.deserialize
import net.corda.core.serialization.serialize
@ -109,58 +106,52 @@ class BFTNonValidatingNotaryService(
@Entity
@Table(name = "${NODE_DATABASE_PREFIX}bft_committed_states")
class PersistedCommittedState(id: PersistentStateRef, consumingTxHash: String, consumingIndex: Int, party: PersistentUniquenessProvider.PersistentParty)
: PersistentUniquenessProvider.PersistentUniqueness(id, consumingTxHash, consumingIndex, party)
class CommittedState(id: PersistentStateRef, consumingTxHash: String) : PersistentUniquenessProvider.BaseComittedState(id, consumingTxHash)
private fun createMap(): AppendOnlyPersistentMap<StateRef, UniquenessProvider.ConsumingTx, PersistedCommittedState, PersistentStateRef> {
private fun createMap(): AppendOnlyPersistentMap<StateRef, SecureHash, CommittedState, PersistentStateRef> {
return AppendOnlyPersistentMap(
toPersistentEntityKey = { PersistentStateRef(it.txhash.toString(), it.index) },
fromPersistentEntity = {
//TODO null check will become obsolete after making DB/JPA columns not nullable
val txId = it.id.txId ?: throw IllegalStateException("DB returned null SecureHash transactionId")
val txId = it.id.txId
?: throw IllegalStateException("DB returned null SecureHash transactionId")
val index = it.id.index ?: throw IllegalStateException("DB returned null SecureHash index")
Pair(StateRef(txhash = SecureHash.parse(txId), index = index),
UniquenessProvider.ConsumingTx(
id = SecureHash.parse(it.consumingTxHash),
inputIndex = it.consumingIndex,
requestingParty = Party(
name = CordaX500Name.parse(it.party.name),
owningKey = Crypto.decodePublicKey(it.party.owningKey))))
},
toPersistentEntity = { (txHash, index): StateRef, (id, inputIndex, requestingParty): UniquenessProvider.ConsumingTx ->
PersistedCommittedState(
id = PersistentStateRef(txHash.toString(), index),
consumingTxHash = id.toString(),
consumingIndex = inputIndex,
party = PersistentUniquenessProvider.PersistentParty(requestingParty.name.toString(),
requestingParty.owningKey.encoded)
Pair(
StateRef(txhash = SecureHash.parse(txId), index = index),
SecureHash.parse(it.consumingTxHash)
)
},
persistentEntityClass = PersistedCommittedState::class.java
toPersistentEntity = { (txHash, index): StateRef, id: SecureHash ->
CommittedState(
id = PersistentStateRef(txHash.toString(), index),
consumingTxHash = id.toString()
)
},
persistentEntityClass = CommittedState::class.java
)
}
private class Replica(config: BFTSMaRtConfig,
replicaId: Int,
createMap: () -> AppendOnlyPersistentMap<StateRef, UniquenessProvider.ConsumingTx, PersistedCommittedState, PersistentStateRef>,
createMap: () -> AppendOnlyPersistentMap<StateRef, SecureHash, CommittedState, PersistentStateRef>,
services: ServiceHubInternal,
notaryIdentityKey: PublicKey) : BFTSMaRt.Replica(config, replicaId, createMap, services, notaryIdentityKey) {
override fun executeCommand(command: ByteArray): ByteArray {
val commitRequest = command.deserialize<BFTSMaRt.CommitRequest>()
verifyRequest(commitRequest)
val response = verifyAndCommitTx(commitRequest.payload.coreTransaction, commitRequest.callerIdentity)
val response = verifyAndCommitTx(commitRequest.payload.coreTransaction, commitRequest.callerIdentity, commitRequest.payload.requestSignature)
return response.serialize().bytes
}
private fun verifyAndCommitTx(transaction: CoreTransaction, callerIdentity: Party): BFTSMaRt.ReplicaResponse {
private fun verifyAndCommitTx(transaction: CoreTransaction, callerIdentity: Party, requestSignature: NotarisationRequestSignature): BFTSMaRt.ReplicaResponse {
return try {
val id = transaction.id
val inputs = transaction.inputs
val notary = transaction.notary
if (transaction is FilteredTransaction) NotaryService.validateTimeWindow(services.clock, transaction.timeWindow)
if (notary !in services.myInfo.legalIdentities) throw NotaryInternalException(NotaryError.WrongNotary)
commitInputStates(inputs, id, callerIdentity)
commitInputStates(inputs, id, callerIdentity.name, requestSignature)
log.debug { "Inputs committed successfully, signing $id" }
BFTSMaRt.ReplicaResponse.Signature(sign(id))
} catch (e: NotaryInternalException) {
@ -176,7 +167,6 @@ class BFTNonValidatingNotaryService(
val transaction = commitRequest.payload.coreTransaction
val notarisationRequest = NotarisationRequest(transaction.inputs, transaction.id)
notarisationRequest.verifySignature(commitRequest.payload.requestSignature, commitRequest.callerIdentity)
// TODO: persist the signature for traceability.
}
}

50
node/src/main/kotlin/net/corda/node/services/transactions/BFTSMaRt.kt
View File

@ -25,10 +25,10 @@ import bftsmart.tom.util.Extractor
import net.corda.core.contracts.StateRef
import net.corda.core.crypto.*
import net.corda.core.flows.*
import net.corda.core.identity.CordaX500Name
import net.corda.core.identity.Party
import net.corda.core.internal.declaredField
import net.corda.core.internal.toTypedArray
import net.corda.core.node.services.UniquenessProvider
import net.corda.core.schemas.PersistentStateRef
import net.corda.core.serialization.CordaSerializable
import net.corda.core.serialization.SingletonSerializeAsToken
@ -40,6 +40,7 @@ import net.corda.node.services.api.ServiceHubInternal
import net.corda.node.services.transactions.BFTSMaRt.Client
import net.corda.node.services.transactions.BFTSMaRt.Replica
import net.corda.node.utilities.AppendOnlyPersistentMap
import net.corda.nodeapi.internal.persistence.currentDBSession
import java.nio.file.Path
import java.security.PublicKey
import java.util.*
@ -179,8 +180,8 @@ object BFTSMaRt {
*/
abstract class Replica(config: BFTSMaRtConfig,
replicaId: Int,
createMap: () -> AppendOnlyPersistentMap<StateRef, UniquenessProvider.ConsumingTx,
BFTNonValidatingNotaryService.PersistedCommittedState, PersistentStateRef>,
createMap: () -> AppendOnlyPersistentMap<StateRef, SecureHash,
BFTNonValidatingNotaryService.CommittedState, PersistentStateRef>,
protected val services: ServiceHubInternal,
protected val notaryIdentityKey: PublicKey) : DefaultRecoverable() {
companion object {
@ -225,28 +226,40 @@ object BFTSMaRt {
*/
abstract fun executeCommand(command: ByteArray): ByteArray?
protected fun commitInputStates(states: List<StateRef>, txId: SecureHash, callerIdentity: Party) {
protected fun commitInputStates(states: List<StateRef>, txId: SecureHash, callerName: CordaX500Name, requestSignature: NotarisationRequestSignature) {
log.debug { "Attempting to commit inputs for transaction: $txId" }
val conflicts = mutableMapOf<StateRef, UniquenessProvider.ConsumingTx>()
val conflicts = mutableMapOf<StateRef, SecureHash>()
services.database.transaction {
logRequest(txId, callerName, requestSignature)
states.forEach { state ->
commitLog[state]?.let { conflicts[state] = it }
}
if (conflicts.isEmpty()) {
log.debug { "No conflicts detected, committing input states: ${states.joinToString()}" }
states.forEachIndexed { i, stateRef ->
val txInfo = UniquenessProvider.ConsumingTx(txId, i, callerIdentity)
commitLog[stateRef] = txInfo
states.forEach { stateRef ->
commitLog[stateRef] = txId
}
} else {
log.debug { "Conflict detected – the following inputs have already been committed: ${conflicts.keys.joinToString()}" }
val conflict = conflicts.mapValues { StateConsumptionDetails(it.value.id.sha256()) }
val conflict = conflicts.mapValues { StateConsumptionDetails(it.value.sha256()) }
val error = NotaryError.Conflict(txId, conflict)
throw NotaryInternalException(error)
}
}
}
private fun logRequest(txId: SecureHash, callerName: CordaX500Name, requestSignature: NotarisationRequestSignature) {
val request = PersistentUniquenessProvider.Request(
consumingTxHash = txId.toString(),
partyName = callerName.toString(),
requestSignature = requestSignature.serialize().bytes,
requestDate = services.clock.instant()
)
val session = currentDBSession()
session.persist(request)
}
/** Generates a signature over an arbitrary array of bytes. */
protected fun sign(bytes: ByteArray): DigitalSignature.WithKey {
return services.database.transaction { services.keyManagementService.sign(bytes, notaryIdentityKey) }
@ -263,18 +276,25 @@ object BFTSMaRt {
// - Add streaming to support large data sets.
override fun getSnapshot(): ByteArray {
// LinkedHashMap for deterministic serialisation
val m = LinkedHashMap<StateRef, UniquenessProvider.ConsumingTx>()
services.database.transaction {
commitLog.allPersisted().forEach { m[it.first] = it.second }
val committedStates = LinkedHashMap<StateRef, SecureHash>()
val requests = services.database.transaction {
commitLog.allPersisted().forEach { committedStates[it.first] = it.second }
val criteriaQuery = session.criteriaBuilder.createQuery(PersistentUniquenessProvider.Request::class.java)
criteriaQuery.select(criteriaQuery.from(PersistentUniquenessProvider.Request::class.java))
session.createQuery(criteriaQuery).resultList
}
return m.serialize().bytes
return (committedStates to requests).serialize().bytes
}
override fun installSnapshot(bytes: ByteArray) {
val m = bytes.deserialize<LinkedHashMap<StateRef, UniquenessProvider.ConsumingTx>>()
val (committedStates, requests) = bytes.deserialize<Pair<LinkedHashMap<StateRef, SecureHash>, List<PersistentUniquenessProvider.Request>>>()
services.database.transaction {
commitLog.clear()
commitLog.putAll(m)
commitLog.putAll(committedStates)
val deleteQuery = session.criteriaBuilder.createCriteriaDelete(PersistentUniquenessProvider.Request::class.java)
deleteQuery.from(PersistentUniquenessProvider.Request::class.java)
session.createQuery(deleteQuery).executeUpdate()
requests.forEach { session.persist(it) }
}
}
}

116
node/src/main/kotlin/net/corda/node/services/transactions/DistributedImmutableMap.kt
View File

@ -1,116 +0,0 @@
/*
* R3 Proprietary and Confidential
*
* Copyright (c) 2018 R3 Limited. All rights reserved.
*
* The intellectual and technical concepts contained herein are proprietary to R3 and its suppliers and are protected by trade secret law.
*
* Distribution of this file or any portion thereof via any medium without the express permission of R3 is strictly prohibited.
*/
package net.corda.node.services.transactions
import io.atomix.copycat.Command
import io.atomix.copycat.Query
import io.atomix.copycat.server.Commit
import io.atomix.copycat.server.Snapshottable
import io.atomix.copycat.server.StateMachine
import io.atomix.copycat.server.storage.snapshot.SnapshotReader
import io.atomix.copycat.server.storage.snapshot.SnapshotWriter
import net.corda.core.utilities.contextLogger
import net.corda.node.utilities.AppendOnlyPersistentMap
import net.corda.nodeapi.internal.persistence.CordaPersistence
import java.util.*
/**
* A distributed map state machine that doesn't allow overriding values. The state machine is replicated
* across a Copycat Raft cluster.
*
* The map contents are backed by a JDBC table. State re-synchronisation is achieved by replaying the command log to the
* new (or re-joining) cluster member.
*/
class DistributedImmutableMap<K : Any, V : Any, E, EK>(val db: CordaPersistence, createMap: () -> AppendOnlyPersistentMap<K, Pair<Long, V>, E, EK>) : StateMachine(), Snapshottable {
companion object {
private val log = contextLogger()
}
object Commands {
class PutAll<K, V>(val entries: Map<K, V>) : Command<Map<K, V>> {
override fun compaction(): Command.CompactionMode {
// The FULL compaction mode retains the command in the log until it has been stored and applied on all
// servers in the cluster. Once the commit has been applied to a state machine and closed it may be
// removed from the log during minor or major compaction.
//
// Note that we are not closing the commits, thus our log grows without bounds. We let the log grow on
// purpose to be able to increase the size of a running cluster, e.g. to add and decommission nodes.
// TODO: Cluster membership changes need testing.
// TODO: I'm wondering if we should support resizing notary clusters, or if we could require users to
// setup a new cluster of the desired size and transfer the data.
return Command.CompactionMode.FULL
}
}
class Size : Query<Int>
class Get<out K, V>(val key: K) : Query<V?>
}
private val map = db.transaction { createMap() }
/** Gets a value for the given [Commands.Get.key] */
fun get(commit: Commit<Commands.Get<K, V>>): V? {
commit.use {
val key = it.operation().key
return db.transaction { map[key]?.second }
}
}
/**
* Stores the given [Commands.PutAll.entries] if no entry key already exists.
*
* @return map containing conflicting entries
*/
fun put(commit: Commit<Commands.PutAll<K, V>>): Map<K, V> {
commit.use {
val index = commit.index()
val conflicts = LinkedHashMap<K, V>()
db.transaction {
val entries = commit.operation().entries
log.debug("State machine commit: storing entries with keys (${entries.keys.joinToString()})")
for (key in entries.keys) map[key]?.let { conflicts[key] = it.second }
if (conflicts.isEmpty()) map.putAll(entries.mapValues { Pair(index, it.value) })
}
return conflicts
}
}
fun size(commit: Commit<Commands.Size>): Int {
commit.use { _ ->
return db.transaction { map.size }
}
}
/**
* Writes out all [map] entries to disk. Note that this operation does not load all entries into memory, as the
* [SnapshotWriter] is using a disk-backed buffer internally, and iterating map entries results in only a
* fixed number of recently accessed entries to ever be kept in memory.
*/
override fun snapshot(writer: SnapshotWriter) {
db.transaction {
writer.writeInt(map.size)
map.allPersisted().forEach { writer.writeObject(it.first to it.second) }
}
}
/** Reads entries from disk and adds them to [map]. */
override fun install(reader: SnapshotReader) {
val size = reader.readInt()
db.transaction {
map.clear()
// TODO: read & put entries in batches
for (i in 1..size) {
val (key, value) = reader.readObject<Pair<K, Pair<Long, V>>>()
map[key] = value
}
}
}
}

21
node/src/main/kotlin/net/corda/node/services/transactions/NonValidatingNotaryFlow.kt
View File

@ -12,18 +12,13 @@ package net.corda.node.services.transactions
import co.paralleluniverse.fibers.Suspendable
import net.corda.core.contracts.ComponentGroupEnum
import net.corda.core.flows.FlowSession
import net.corda.core.flows.NotaryFlow
import net.corda.core.flows.TransactionParts
import net.corda.core.flows.NotarisationPayload
import net.corda.core.flows.NotarisationRequest
import net.corda.core.internal.validateRequest
import net.corda.core.flows.*
import net.corda.core.internal.validateRequestSignature
import net.corda.core.node.services.TrustedAuthorityNotaryService
import net.corda.core.transactions.CoreTransaction
import net.corda.core.transactions.ContractUpgradeFilteredTransaction
import net.corda.core.transactions.CoreTransaction
import net.corda.core.transactions.FilteredTransaction
import net.corda.core.transactions.NotaryChangeWireTransaction
import net.corda.core.utilities.unwrap
class NonValidatingNotaryFlow(otherSideSession: FlowSession, service: TrustedAuthorityNotaryService) : NotaryFlow.Service(otherSideSession, service) {
/**
@ -35,13 +30,11 @@ class NonValidatingNotaryFlow(otherSideSession: FlowSession, service: TrustedAut
* undo the commit of the input states (the exact mechanism still needs to be worked out).
*/
@Suspendable
override fun receiveAndVerifyTx(): TransactionParts {
return otherSideSession.receive<NotarisationPayload>().unwrap { payload ->
val transaction = payload.coreTransaction
override fun validateRequest(requestPayload: NotarisationPayload): TransactionParts {
val transaction = requestPayload.coreTransaction
val request = NotarisationRequest(transaction.inputs, transaction.id)
validateRequest(request, payload.requestSignature)
extractParts(transaction)
}
validateRequestSignature(request, requestPayload.requestSignature)
return extractParts(transaction)
}
private fun extractParts(tx: CoreTransaction): TransactionParts {

117
node/src/main/kotlin/net/corda/node/services/transactions/PersistentUniquenessProvider.kt
View File

@ -11,62 +11,67 @@
package net.corda.node.services.transactions
import net.corda.core.contracts.StateRef
import net.corda.core.crypto.Crypto
import net.corda.core.crypto.SecureHash
import net.corda.core.crypto.sha256
import net.corda.core.flows.NotarisationRequestSignature
import net.corda.core.flows.NotaryError
import net.corda.core.flows.NotaryInternalException
import net.corda.core.flows.StateConsumptionDetails
import net.corda.core.identity.CordaX500Name
import net.corda.core.identity.Party
import net.corda.core.internal.ThreadBox
import net.corda.core.node.services.UniquenessProvider
import net.corda.core.schemas.PersistentStateRef
import net.corda.core.serialization.CordaSerializable
import net.corda.core.serialization.SingletonSerializeAsToken
import net.corda.core.serialization.serialize
import net.corda.core.utilities.contextLogger
import net.corda.node.utilities.AppendOnlyPersistentMap
import net.corda.nodeapi.internal.persistence.NODE_DATABASE_PREFIX
import org.apache.commons.lang.ArrayUtils.EMPTY_BYTE_ARRAY
import org.hibernate.annotations.Type
import java.io.Serializable
import net.corda.nodeapi.internal.persistence.currentDBSession
import java.time.Clock
import java.time.Instant
import java.util.*
import javax.annotation.concurrent.ThreadSafe
import javax.persistence.*
/** A RDBMS backed Uniqueness provider */
@ThreadSafe
class PersistentUniquenessProvider : UniquenessProvider, SingletonSerializeAsToken() {
class PersistentUniquenessProvider(val clock: Clock) : UniquenessProvider, SingletonSerializeAsToken() {
@MappedSuperclass
open class PersistentUniqueness(
open class BaseComittedState(
@EmbeddedId
var id: PersistentStateRef = PersistentStateRef(),
val id: PersistentStateRef,
@Column(name = "consuming_transaction_id")
var consumingTxHash: String = "",
@Column(name = "consuming_input_index", length = 36)
var consumingIndex: Int = 0,
@Embedded
var party: PersistentParty = PersistentParty()
val consumingTxHash: String
)
@Embeddable
data class PersistentParty(
@Column(name = "requesting_party_name")
var name: String = "",
@Entity
@javax.persistence.Table(name = "${NODE_DATABASE_PREFIX}notary_request_log")
@CordaSerializable
class Request(
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
val id: Int = 0,
@Column(name = "requesting_party_key", length = 255)
@Type(type = "corda-wrapper-binary")
var owningKey: ByteArray = EMPTY_BYTE_ARRAY
) : Serializable
@Column(name = "consuming_transaction_id")
val consumingTxHash: String,
@Embedded
@Column(name = "requesting_party_name")
var partyName: String,
@Lob
@Column(name = "request_signature")
val requestSignature: ByteArray,
@Column(name = "request_timestamp")
var requestDate: Instant
)
@Entity
@javax.persistence.Table(name = "${NODE_DATABASE_PREFIX}notary_commit_log")
class PersistentNotaryCommit(id: PersistentStateRef, consumingTxHash: String, consumingIndex: Int, party: PersistentParty) :
PersistentUniqueness(id, consumingTxHash, consumingIndex, party)
@javax.persistence.Table(name = "${NODE_DATABASE_PREFIX}notary_committed_states")
class CommittedState(id: PersistentStateRef, consumingTxHash: String) : BaseComittedState(id, consumingTxHash)
private class InnerState {
val committedStates = createMap()
@ -76,7 +81,7 @@ class PersistentUniquenessProvider : UniquenessProvider, SingletonSerializeAsTok
companion object {
private val log = contextLogger()
fun createMap(): AppendOnlyPersistentMap<StateRef, UniquenessProvider.ConsumingTx, PersistentNotaryCommit, PersistentStateRef> =
fun createMap(): AppendOnlyPersistentMap<StateRef, SecureHash, CommittedState, PersistentStateRef> =
AppendOnlyPersistentMap(
toPersistentEntityKey = { PersistentStateRef(it.txhash.toString(), it.index) },
fromPersistentEntity = {
@ -84,46 +89,58 @@ class PersistentUniquenessProvider : UniquenessProvider, SingletonSerializeAsTok
val txId = it.id.txId
?: throw IllegalStateException("DB returned null SecureHash transactionId")
val index = it.id.index ?: throw IllegalStateException("DB returned null SecureHash index")
Pair(StateRef(txhash = SecureHash.parse(txId), index = index),
UniquenessProvider.ConsumingTx(
id = SecureHash.parse(it.consumingTxHash),
inputIndex = it.consumingIndex,
requestingParty = Party(
name = CordaX500Name.parse(it.party.name),
owningKey = Crypto.decodePublicKey(it.party.owningKey))))
Pair(
StateRef(txhash = SecureHash.parse(txId), index = index),
SecureHash.parse(it.consumingTxHash)
)
},
toPersistentEntity = { (txHash, index): StateRef, (id, inputIndex, requestingParty): UniquenessProvider.ConsumingTx ->
PersistentNotaryCommit(
toPersistentEntity = { (txHash, index): StateRef, id: SecureHash ->
CommittedState(
id = PersistentStateRef(txHash.toString(), index),
consumingTxHash = id.toString(),
consumingIndex = inputIndex,
party = PersistentParty(requestingParty.name.toString(), requestingParty.owningKey.encoded)
consumingTxHash = id.toString()
)
},
persistentEntityClass = PersistentNotaryCommit::class.java
persistentEntityClass = CommittedState::class.java
)
}
override fun commit(states: List<StateRef>, txId: SecureHash, callerIdentity: Party) {
override fun commit(states: List<StateRef>, txId: SecureHash, callerIdentity: Party, requestSignature: NotarisationRequestSignature) {
logRequest(txId, callerIdentity, requestSignature)
val conflict = commitStates(states, txId)
if (conflict != null) throw NotaryInternalException(NotaryError.Conflict(txId, conflict))
}
private fun logRequest(txId: SecureHash, callerIdentity: Party, requestSignature: NotarisationRequestSignature) {
val request = Request(
consumingTxHash = txId.toString(),
partyName = callerIdentity.name.toString(),
requestSignature = requestSignature.serialize().bytes,
requestDate = clock.instant()
)
val session = currentDBSession()
session.persist(request)
}
private fun commitStates(states: List<StateRef>, txId: SecureHash): Map<StateRef, StateConsumptionDetails>? {
val conflict = mutex.locked {
val conflictingStates = LinkedHashMap<StateRef, UniquenessProvider.ConsumingTx>()
val conflictingStates = LinkedHashMap<StateRef, SecureHash>()
for (inputState in states) {
val consumingTx = committedStates.get(inputState)
val consumingTx = committedStates[inputState]
if (consumingTx != null) conflictingStates[inputState] = consumingTx
}
if (conflictingStates.isNotEmpty()) {
log.debug("Failure, input states already committed: ${conflictingStates.keys}")
val conflict = conflictingStates.mapValues { StateConsumptionDetails(it.value.id.sha256()) }
val conflict = conflictingStates.mapValues { (_, txId) -> StateConsumptionDetails(txId.sha256()) }
conflict
} else {
states.forEachIndexed { i, stateRef ->
committedStates[stateRef] = UniquenessProvider.ConsumingTx(txId, i, callerIdentity)
states.forEach { stateRef ->
committedStates[stateRef] = txId
}
log.debug("Successfully committed all input states: $states")
null
}
}
if (conflict != null) throw NotaryInternalException(NotaryError.Conflict(txId, conflict))
return conflict
}
}

261
node/src/main/kotlin/net/corda/node/services/transactions/RaftTransactionCommitLog.kt Normal file
View File

@ -0,0 +1,261 @@
package net.corda.node.services.transactions
import io.atomix.catalyst.buffer.BufferInput
import io.atomix.catalyst.buffer.BufferOutput
import io.atomix.catalyst.serializer.Serializer
import io.atomix.catalyst.serializer.TypeSerializer
import io.atomix.copycat.Command
import io.atomix.copycat.Query
import io.atomix.copycat.server.Commit
import io.atomix.copycat.server.Snapshottable
import io.atomix.copycat.server.StateMachine
import io.atomix.copycat.server.storage.snapshot.SnapshotReader
import io.atomix.copycat.server.storage.snapshot.SnapshotWriter
import net.corda.core.contracts.StateRef
import net.corda.core.crypto.SecureHash
import net.corda.core.serialization.SerializationDefaults
import net.corda.core.serialization.deserialize
import net.corda.core.serialization.serialize
import net.corda.core.utilities.contextLogger
import net.corda.node.services.transactions.RaftUniquenessProvider.Companion.encoded
import net.corda.node.services.transactions.RaftUniquenessProvider.Companion.parseStateRef
import net.corda.node.utilities.AppendOnlyPersistentMap
import net.corda.nodeapi.internal.persistence.CordaPersistence
import net.corda.nodeapi.internal.persistence.currentDBSession
import java.time.Clock
/**
* Notarised contract state commit log, replicated across a Copycat Raft cluster.
*
* Copycat ony supports in-memory state machines, so we back the state with JDBC tables.
* State re-synchronisation is achieved by replaying the command log to the new (or re-joining) cluster member.
*/
class RaftTransactionCommitLog<E, EK>(
val db: CordaPersistence,
val nodeClock: Clock,
createMap: () -> AppendOnlyPersistentMap<StateRef, Pair<Long, SecureHash>, E, EK>
) : StateMachine(), Snapshottable {
object Commands {
class CommitTransaction(
val states: List<StateRef>,
val txId: SecureHash,
val requestingParty: String,
val requestSignature: ByteArray
) : Command<Map<StateRef, SecureHash>> {
override fun compaction(): Command.CompactionMode {
// The FULL compaction mode retains the command in the log until it has been stored and applied on all
// servers in the cluster. Once the commit has been applied to a state machine and closed it may be
// removed from the log during minor or major compaction.
//
// Note that we are not closing the commits, thus our log grows without bounds. We let the log grow on
// purpose to be able to increase the size of a running cluster, e.g. to add and decommission nodes.
// TODO: Cluster membership changes need testing.
// TODO: I'm wondering if we should support resizing notary clusters, or if we could require users to
// setup a new cluster of the desired size and transfer the data.
return Command.CompactionMode.FULL
}
}
class Get(val key: StateRef) : Query<SecureHash?>
}
private val map = db.transaction { createMap() }
/** Commits the input states for the transaction as specified in the given [Commands.CommitTransaction]. */
fun commitTransaction(raftCommit: Commit<Commands.CommitTransaction>): Map<StateRef, SecureHash> {
raftCommit.use {
val index = it.index()
val conflicts = LinkedHashMap<StateRef, SecureHash>()
db.transaction {
val commitCommand = raftCommit.command()
logRequest(commitCommand)
val states = commitCommand.states
val txId = commitCommand.txId
log.debug("State machine commit: storing entries with keys (${states.joinToString()})")
for (state in states) {
map[state]?.let { conflicts[state] = it.second }
}
if (conflicts.isEmpty()) {
val entries = states.map { it to Pair(index, txId) }.toMap()
map.putAll(entries)
}
}
return conflicts
}
}
private fun logRequest(commitCommand: RaftTransactionCommitLog.Commands.CommitTransaction) {
val request = PersistentUniquenessProvider.Request(
consumingTxHash = commitCommand.txId.toString(),
partyName = commitCommand.requestingParty,
requestSignature = commitCommand.requestSignature,
requestDate = nodeClock.instant()
)
val session = currentDBSession()
session.persist(request)
}
/** Gets the consuming transaction id for a given state reference. */
fun get(commit: Commit<Commands.Get>): SecureHash? {
commit.use {
val key = it.operation().key
return db.transaction { map[key]?.second }
}
}
/**
* Writes out all committed state and notarisation request entries to disk. Note that this operation does not
* load all entries into memory, as the [SnapshotWriter] is using a disk-backed buffer internally, and iterating
* map entries results in only a fixed number of recently accessed entries to ever be kept in memory.
*/
override fun snapshot(writer: SnapshotWriter) {
db.transaction {
writer.writeInt(map.size)
map.allPersisted().forEach {
val bytes = it.serialize(context = SerializationDefaults.STORAGE_CONTEXT).bytes
writer.writeUnsignedShort(bytes.size)
writer.writeObject(bytes)
}
val criteriaQuery = session.criteriaBuilder.createQuery(PersistentUniquenessProvider.Request::class.java)
criteriaQuery.select(criteriaQuery.from(PersistentUniquenessProvider.Request::class.java))
val results = session.createQuery(criteriaQuery).resultList
writer.writeInt(results.size)
results.forEach {
val bytes = it.serialize(context = SerializationDefaults.STORAGE_CONTEXT).bytes
writer.writeUnsignedShort(bytes.size)
writer.writeObject(bytes)
}
}
}
/** Reads entries from disk and populates the committed state and notarisation request tables. */
override fun install(reader: SnapshotReader) {
val size = reader.readInt()
db.transaction {
map.clear()
// TODO: read & put entries in batches
for (i in 1..size) {
val bytes = ByteArray(reader.readUnsignedShort())
reader.read(bytes)
val (key, value) = bytes.deserialize<Pair<StateRef, Pair<Long, SecureHash>>>()
map[key] = value
}
// Clean notarisation request log
val deleteQuery = session.criteriaBuilder.createCriteriaDelete(PersistentUniquenessProvider.Request::class.java)
deleteQuery.from(PersistentUniquenessProvider.Request::class.java)
session.createQuery(deleteQuery).executeUpdate()
// Load and populate request log
for (i in 1..reader.readInt()) {
val bytes = ByteArray(reader.readUnsignedShort())
reader.read(bytes)
val request = bytes.deserialize<PersistentUniquenessProvider.Request>()
session.persist(request)
}
}
}
companion object {
private val log = contextLogger()
// Add custom serializers so Catalyst doesn't attempt to fall back on Java serialization for these types, which is disabled process-wide:
val serializer: Serializer by lazy {
Serializer().apply {
register(RaftTransactionCommitLog.Commands.CommitTransaction::class.java) {
object : TypeSerializer<Commands.CommitTransaction> {
override fun write(obj: RaftTransactionCommitLog.Commands.CommitTransaction,
buffer: BufferOutput<out BufferOutput<*>>,
serializer: Serializer) {
buffer.writeUnsignedShort(obj.states.size)
with(serializer) {
obj.states.forEach {
writeObject(it, buffer)
}
writeObject(obj.txId, buffer)
}
buffer.writeString(obj.requestingParty)
buffer.writeInt(obj.requestSignature.size)
buffer.write(obj.requestSignature)
}
override fun read(type: Class<RaftTransactionCommitLog.Commands.CommitTransaction>,
buffer: BufferInput<out BufferInput<*>>,
serializer: Serializer): RaftTransactionCommitLog.Commands.CommitTransaction {
val stateCount = buffer.readUnsignedShort()
val states = (1..stateCount).map {
serializer.readObject<StateRef>(buffer)
}
val txId = serializer.readObject<SecureHash>(buffer)
val name = buffer.readString()
val signatureSize = buffer.readInt()
val signature = ByteArray(signatureSize)
buffer.read(signature)
return RaftTransactionCommitLog.Commands.CommitTransaction(states, txId, name, signature)
}
}
}
register(RaftTransactionCommitLog.Commands.Get::class.java) {
object : TypeSerializer<Commands.Get> {
override fun write(obj: RaftTransactionCommitLog.Commands.Get, buffer: BufferOutput<out BufferOutput<*>>, serializer: Serializer) {
serializer.writeObject(obj.key, buffer)
}
override fun read(type: Class<RaftTransactionCommitLog.Commands.Get>, buffer: BufferInput<out BufferInput<*>>, serializer: Serializer): RaftTransactionCommitLog.Commands.Get {
val key = serializer.readObject<StateRef>(buffer)
return RaftTransactionCommitLog.Commands.Get(key)
}
}
}
register(StateRef::class.java) {
object : TypeSerializer<StateRef> {
override fun write(obj: StateRef, buffer: BufferOutput<out BufferOutput<*>>, serializer: Serializer) {
buffer.writeString(obj.encoded())
}
override fun read(type: Class<StateRef>, buffer: BufferInput<out BufferInput<*>>, serializer: Serializer): StateRef {
return buffer.readString().parseStateRef()
}
}
}
registerAbstract(SecureHash::class.java) {
object : TypeSerializer<SecureHash> {
override fun write(obj: SecureHash, buffer: BufferOutput<out BufferOutput<*>>, serializer: Serializer) {
buffer.writeUnsignedShort(obj.bytes.size)
buffer.write(obj.bytes)
}
override fun read(type: Class<SecureHash>, buffer: BufferInput<out BufferInput<*>>, serializer: Serializer): SecureHash {
val size = buffer.readUnsignedShort()
val bytes = ByteArray(size)
buffer.read(bytes)
return SecureHash.SHA256(bytes)
}
}
}
register(LinkedHashMap::class.java) {
object : TypeSerializer<LinkedHashMap<*, *>> {
override fun write(obj: LinkedHashMap<*, *>, buffer: BufferOutput<out BufferOutput<*>>, serializer: Serializer) {
buffer.writeInt(obj.size)
obj.forEach {
with(serializer) {
writeObject(it.key, buffer)
writeObject(it.value, buffer)
}
}
}
override fun read(type: Class<LinkedHashMap<*, *>>, buffer: BufferInput<out BufferInput<*>>, serializer: Serializer): LinkedHashMap<*, *> {
return LinkedHashMap<Any, Any>().apply {
repeat(buffer.readInt()) {
put(serializer.readObject(buffer), serializer.readObject(buffer))
}
}
}
}
}
}
}
}
}

141
node/src/main/kotlin/net/corda/node/services/transactions/RaftUniquenessProvider.kt
View File

@ -12,10 +12,6 @@ package net.corda.node.services.transactions
import com.codahale.metrics.Gauge
import com.codahale.metrics.MetricRegistry
import io.atomix.catalyst.buffer.BufferInput
import io.atomix.catalyst.buffer.BufferOutput
import io.atomix.catalyst.serializer.Serializer
import io.atomix.catalyst.serializer.TypeSerializer
import io.atomix.catalyst.transport.Address
import io.atomix.catalyst.transport.Transport
import io.atomix.catalyst.transport.netty.NettyTransport
@ -30,14 +26,14 @@ import io.atomix.copycat.server.storage.StorageLevel
import net.corda.core.contracts.StateRef
import net.corda.core.crypto.SecureHash
import net.corda.core.crypto.sha256
import net.corda.core.flows.NotarisationRequestSignature
import net.corda.core.flows.NotaryError
import net.corda.core.flows.NotaryInternalException
import net.corda.core.flows.StateConsumptionDetails
import net.corda.core.identity.Party
import net.corda.core.node.services.UniquenessProvider
import net.corda.core.serialization.SerializationDefaults
import net.corda.core.schemas.PersistentStateRef
import net.corda.core.serialization.SingletonSerializeAsToken
import net.corda.core.serialization.deserialize
import net.corda.core.serialization.serialize
import net.corda.core.utilities.contextLogger
import net.corda.node.services.config.RaftConfig
@ -46,11 +42,14 @@ import net.corda.nodeapi.internal.config.NodeSSLConfiguration
import net.corda.nodeapi.internal.config.SSLConfiguration
import net.corda.nodeapi.internal.persistence.CordaPersistence
import net.corda.nodeapi.internal.persistence.NODE_DATABASE_PREFIX
import org.apache.commons.lang.ArrayUtils.EMPTY_BYTE_ARRAY
import java.nio.file.Path
import java.time.Clock
import java.util.concurrent.CompletableFuture
import javax.annotation.concurrent.ThreadSafe
import javax.persistence.*
import javax.persistence.Column
import javax.persistence.EmbeddedId
import javax.persistence.Entity
import javax.persistence.Table
/**
* A uniqueness provider that records committed input states in a distributed collection replicated and
@ -61,37 +60,49 @@ import javax.persistence.*
* to the cluster leader to be actioned.
*/
@ThreadSafe
class RaftUniquenessProvider(private val transportConfiguration: NodeSSLConfiguration, private val db: CordaPersistence, private val metrics: MetricRegistry, private val raftConfig: RaftConfig) : UniquenessProvider, SingletonSerializeAsToken() {
class RaftUniquenessProvider(
private val transportConfiguration: NodeSSLConfiguration,
private val db: CordaPersistence,
private val clock: Clock,
private val metrics: MetricRegistry,
private val raftConfig: RaftConfig
) : UniquenessProvider, SingletonSerializeAsToken() {
companion object {
private val log = contextLogger()
fun createMap(): AppendOnlyPersistentMap<String, Pair<Long, Any>, RaftState, String> =
fun createMap(): AppendOnlyPersistentMap<StateRef, Pair<Long, SecureHash>, CommittedState, PersistentStateRef> =
AppendOnlyPersistentMap(
toPersistentEntityKey = { it },
toPersistentEntityKey = { PersistentStateRef(it) },
fromPersistentEntity = {
Pair(it.key, Pair(it.index, it.value.deserialize(context = SerializationDefaults.STORAGE_CONTEXT)))
val txId = it.id.txId
?: throw IllegalStateException("DB returned null SecureHash transactionId")
val index = it.id.index ?: throw IllegalStateException("DB returned null SecureHash index")
Pair(
StateRef(txhash = SecureHash.parse(txId), index = index),
Pair(it.index, SecureHash.parse(it.value) as SecureHash))
},
toPersistentEntity = { k: String, v: Pair<Long, Any> ->
RaftState().apply {
key = k
value = v.second.serialize(context = SerializationDefaults.STORAGE_CONTEXT).bytes
index = v.first
}
toPersistentEntity = { k: StateRef, v: Pair<Long, SecureHash> ->
CommittedState(
PersistentStateRef(k),
v.second.toString(),
v.first)
},
persistentEntityClass = RaftState::class.java
persistentEntityClass = CommittedState::class.java
)
fun StateRef.encoded() = "$txhash:$index"
fun String.parseStateRef() = split(":").let { StateRef(SecureHash.parse(it[0]), it[1].toInt()) }
}
@Entity
@Table(name = "${NODE_DATABASE_PREFIX}raft_committed_states")
class RaftState(
@Id
@Column(name = "id")
var key: String = "",
@Lob
@Column(name = "state_value")
var value: ByteArray = EMPTY_BYTE_ARRAY,
@Column(name = "state_index")
class CommittedState(
@EmbeddedId
val id: PersistentStateRef,
@Column(name = "consuming_transaction_id")
var value: String = "",
@Column(name = "raft_log_index")
var index: Long = 0
)
@ -110,41 +121,17 @@ class RaftUniquenessProvider(private val transportConfiguration: NodeSSLConfigur
fun start() {
log.info("Creating Copycat server, log stored in: ${storagePath.toFile()}")
val stateMachineFactory = {
DistributedImmutableMap(db, RaftUniquenessProvider.Companion::createMap)
RaftTransactionCommitLog(db, clock, RaftUniquenessProvider.Companion::createMap)
}
val address = raftConfig.nodeAddress.let { Address(it.host, it.port) }
val storage = buildStorage(storagePath)
val transport = buildTransport(transportConfiguration)
val serializer = Serializer().apply {
// Add serializers so Catalyst doesn't attempt to fall back on Java serialization for these types, which is disabled process-wide:
register(DistributedImmutableMap.Commands.PutAll::class.java) {
object : TypeSerializer<DistributedImmutableMap.Commands.PutAll<*, *>> {
override fun write(obj: DistributedImmutableMap.Commands.PutAll<*, *>,
buffer: BufferOutput<out BufferOutput<*>>,
serializer: Serializer) {
writeMap(obj.entries, buffer, serializer)
}
override fun read(type: Class<DistributedImmutableMap.Commands.PutAll<*, *>>,
buffer: BufferInput<out BufferInput<*>>,
serializer: Serializer): DistributedImmutableMap.Commands.PutAll<Any, Any> {
return DistributedImmutableMap.Commands.PutAll(readMap(buffer, serializer))
}
}
}
register(LinkedHashMap::class.java) {
object : TypeSerializer<LinkedHashMap<*, *>> {
override fun write(obj: LinkedHashMap<*, *>, buffer: BufferOutput<out BufferOutput<*>>, serializer: Serializer) = writeMap(obj, buffer, serializer)
override fun read(type: Class<LinkedHashMap<*, *>>, buffer: BufferInput<out BufferInput<*>>, serializer: Serializer) = readMap(buffer, serializer)
}
}
}
server = CopycatServer.builder(address)
.withStateMachine(stateMachineFactory)
.withStorage(storage)
.withServerTransport(transport)
.withSerializer(serializer)
.withSerializer(RaftTransactionCommitLog.serializer)
.build()
val serverFuture = if (raftConfig.clusterAddresses.isNotEmpty()) {
@ -161,7 +148,7 @@ class RaftUniquenessProvider(private val transportConfiguration: NodeSSLConfigur
val client = CopycatClient.builder(address)
.withTransport(transport) // TODO: use local transport for client-server communications
.withConnectionStrategy(ConnectionStrategies.EXPONENTIAL_BACKOFF)
.withSerializer(serializer)
.withSerializer(RaftTransactionCommitLog.serializer)
.withRecoveryStrategy(RecoveryStrategies.RECOVER)
.build()
_clientFuture = serverFuture.thenCompose { client.connect(address) }
@ -210,50 +197,22 @@ class RaftUniquenessProvider(private val transportConfiguration: NodeSSLConfigur
}
override fun commit(states: List<StateRef>, txId: SecureHash, callerIdentity: Party) {
val entries = states.mapIndexed { i, stateRef -> stateRef to UniquenessProvider.ConsumingTx(txId, i, callerIdentity) }
override fun commit(states: List<StateRef>, txId: SecureHash, callerIdentity: Party, requestSignature: NotarisationRequestSignature) {
log.debug("Attempting to commit input states: ${states.joinToString()}")
val commitCommand = DistributedImmutableMap.Commands.PutAll(encode(entries))
val commitCommand = RaftTransactionCommitLog.Commands.CommitTransaction(
states,
txId,
callerIdentity.name.toString(),
requestSignature.serialize().bytes
)
val conflicts = client.submit(commitCommand).get()
if (conflicts.isNotEmpty()) {
val conflictingStates = decode(conflicts).mapValues { StateConsumptionDetails(it.value.id.sha256()) }
val conflictingStates = conflicts.mapValues { StateConsumptionDetails(it.value.sha256()) }
val error = NotaryError.Conflict(txId, conflictingStates)
throw NotaryInternalException(error)
}
log.debug("All input states of transaction $txId have been committed")
}
/**
* Copycat uses its own serialization framework so we convert and store entries as String -> ByteArray
* here to avoid having to define additional serializers for our custom types.
*/
private fun encode(items: List<Pair<StateRef, UniquenessProvider.ConsumingTx>>): Map<String, ByteArray> {
fun StateRef.encoded() = "$txhash:$index"
return items.map { it.first.encoded() to it.second.serialize().bytes }.toMap()
}
private fun decode(items: Map<String, ByteArray>): Map<StateRef, UniquenessProvider.ConsumingTx> {
fun String.toStateRef() = split(":").let { StateRef(SecureHash.parse(it[0]), it[1].toInt()) }
return items.map { it.key.toStateRef() to it.value.deserialize<UniquenessProvider.ConsumingTx>() }.toMap()
}
}
private fun writeMap(map: Map<*, *>, buffer: BufferOutput<out BufferOutput<*>>, serializer: Serializer) = with(map) {
buffer.writeInt(size)
forEach {
with(serializer) {
writeObject(it.key, buffer)
writeObject(it.value, buffer)
}
}
}
private fun readMap(buffer: BufferInput<out BufferInput<*>>, serializer: Serializer): LinkedHashMap<Any, Any> {
return LinkedHashMap<Any, Any>().apply {
repeat(buffer.readInt()) {
put(serializer.readObject(buffer), serializer.readObject(buffer))
}
}
}

2
node/src/main/kotlin/net/corda/node/services/transactions/SimpleNotaryService.kt
View File

@ -18,7 +18,7 @@ import java.security.PublicKey
/** A simple Notary service that does not perform transaction validation */
class SimpleNotaryService(override val services: ServiceHubInternal, override val notaryIdentityKey: PublicKey) : TrustedAuthorityNotaryService() {
override val uniquenessProvider = PersistentUniquenessProvider()
override val uniquenessProvider = PersistentUniquenessProvider(services.clock)
override fun createServiceFlow(otherPartySession: FlowSession): NotaryFlow.Service = NonValidatingNotaryFlow(otherPartySession, this)

17
node/src/main/kotlin/net/corda/node/services/transactions/ValidatingNotaryFlow.kt
View File

@ -15,12 +15,11 @@ import net.corda.core.contracts.TimeWindow
import net.corda.core.contracts.TransactionVerificationException
import net.corda.core.flows.*
import net.corda.core.internal.ResolveTransactionsFlow
import net.corda.core.internal.validateRequest
import net.corda.core.internal.validateRequestSignature
import net.corda.core.node.services.TrustedAuthorityNotaryService
import net.corda.core.transactions.SignedTransaction
import net.corda.core.transactions.TransactionWithSignatures
import net.corda.core.transactions.WireTransaction
import net.corda.core.utilities.unwrap
import java.security.SignatureException
/**
@ -35,9 +34,10 @@ class ValidatingNotaryFlow(otherSideSession: FlowSession, service: TrustedAuthor
* the transaction in question has all required signatures apart from the notary's.
*/
@Suspendable
override fun receiveAndVerifyTx(): TransactionParts {
override fun validateRequest(requestPayload: NotarisationPayload): TransactionParts {
try {
val stx = receiveTransaction()
val stx = requestPayload.signedTransaction
validateRequestSignature(NotarisationRequest(stx.inputs, stx.id), requestPayload.requestSignature)
val notary = stx.notary
checkNotary(notary)
resolveAndContractVerify(stx)
@ -53,15 +53,6 @@ class ValidatingNotaryFlow(otherSideSession: FlowSession, service: TrustedAuthor
}
}
@Suspendable
private fun receiveTransaction(): SignedTransaction {
return otherSideSession.receive<NotarisationPayload>().unwrap {
val stx = it.signedTransaction
validateRequest(NotarisationRequest(stx.inputs, stx.id), it.requestSignature)
stx
}
}
@Suspendable
private fun resolveAndContractVerify(stx: SignedTransaction) {
subFlow(ResolveTransactionsFlow(stx, otherSideSession))

2
node/src/main/kotlin/net/corda/node/services/transactions/ValidatingNotaryService.kt
View File

@ -18,7 +18,7 @@ import java.security.PublicKey
/** A Notary service that validates the transaction chain of the submitted transaction before committing it */
class ValidatingNotaryService(override val services: ServiceHubInternal, override val notaryIdentityKey: PublicKey) : TrustedAuthorityNotaryService() {
override val uniquenessProvider = PersistentUniquenessProvider()
override val uniquenessProvider = PersistentUniquenessProvider(services.clock)
override fun createServiceFlow(otherPartySession: FlowSession): NotaryFlow.Service = ValidatingNotaryFlow(otherPartySession, this)

19
node/src/test/kotlin/net/corda/node/services/transactions/PersistentUniquenessProviderTests.kt
View File

@ -10,10 +10,13 @@
package net.corda.node.services.transactions
import net.corda.core.crypto.DigitalSignature
import net.corda.core.crypto.NullKeys
import net.corda.core.crypto.SecureHash
import net.corda.core.crypto.sha256
import net.corda.core.flows.NotaryInternalException
import net.corda.core.flows.NotarisationRequestSignature
import net.corda.core.flows.NotaryError
import net.corda.core.flows.NotaryInternalException
import net.corda.core.identity.CordaX500Name
import net.corda.node.internal.configureDatabase
import net.corda.node.services.schema.NodeSchemaService
@ -29,6 +32,7 @@ import org.junit.After
import org.junit.Before
import org.junit.Rule
import org.junit.Test
import java.time.Clock
import kotlin.test.assertEquals
import kotlin.test.assertFailsWith
@ -38,6 +42,7 @@ class PersistentUniquenessProviderTests {
val testSerialization = SerializationEnvironmentRule()
private val identity = TestIdentity(CordaX500Name("MegaCorp", "London", "GB")).party
private val txID = SecureHash.randomSHA256()
private val requestSignature = NotarisationRequestSignature(DigitalSignature.WithKey(NullKeys.NullPublicKey, ByteArray(32)), 0)
private lateinit var database: CordaPersistence
@ -56,23 +61,25 @@ class PersistentUniquenessProviderTests {
@Test
fun `should commit a transaction with unused inputs without exception`() {
database.transaction {
val provider = PersistentUniquenessProvider()
val provider = PersistentUniquenessProvider(Clock.systemUTC())
val inputState = generateStateRef()
provider.commit(listOf(inputState), txID, identity)
provider.commit(listOf(inputState), txID, identity, requestSignature)
}
}
@Test
fun `should report a conflict for a transaction with previously used inputs`() {
database.transaction {
val provider = PersistentUniquenessProvider()
val provider = PersistentUniquenessProvider(Clock.systemUTC())
val inputState = generateStateRef()
val inputs = listOf(inputState)
provider.commit(inputs, txID, identity)
provider.commit(inputs, txID, identity, requestSignature)
val ex = assertFailsWith<NotaryInternalException> { provider.commit(inputs, txID, identity) }
val ex = assertFailsWith<NotaryInternalException> {
provider.commit(inputs, txID, identity, requestSignature)
}
val error = ex.error as NotaryError.Conflict
val conflictCause = error.consumedStates[inputState]!!

47
node/src/test/kotlin/net/corda/node/services/transactions/DistributedImmutableMapTests.kt → node/src/test/kotlin/net/corda/node/services/transactions/RaftTransactionCommitLogTests.kt
View File

@ -16,6 +16,8 @@ import io.atomix.copycat.client.CopycatClient
import io.atomix.copycat.server.CopycatServer
import io.atomix.copycat.server.storage.Storage
import io.atomix.copycat.server.storage.StorageLevel
import net.corda.core.contracts.StateRef
import net.corda.core.crypto.SecureHash
import net.corda.core.internal.concurrent.asCordaFuture
import net.corda.core.internal.concurrent.transpose
import net.corda.core.utilities.NetworkHostAndPort
@ -24,20 +26,22 @@ import net.corda.node.internal.configureDatabase
import net.corda.node.services.schema.NodeSchemaService
import net.corda.nodeapi.internal.persistence.CordaPersistence
import net.corda.nodeapi.internal.persistence.DatabaseConfig
import net.corda.testing.internal.LogHelper
import net.corda.testing.core.ALICE_NAME
import net.corda.testing.core.SerializationEnvironmentRule
import net.corda.testing.core.freeLocalHostAndPort
import net.corda.testing.node.MockServices.Companion.makeTestDataSourceProperties
import net.corda.testing.internal.LogHelper
import net.corda.testing.internal.rigorousMock
import net.corda.testing.node.MockServices.Companion.makeTestDataSourceProperties
import org.junit.After
import org.junit.Before
import org.junit.Rule
import org.junit.Test
import java.time.Clock
import java.util.concurrent.CompletableFuture
import kotlin.test.assertEquals
import kotlin.test.assertTrue
class DistributedImmutableMapTests {
class RaftTransactionCommitLogTests {
data class Member(val client: CopycatClient, val server: CopycatServer)
@Rule
@ -50,12 +54,13 @@ class DistributedImmutableMapTests {
@Before
fun setup() {
LogHelper.setLevel("-org.apache.activemq")
LogHelper.setLevel("+io.atomix")
cluster = setUpCluster()
}
@After
fun tearDown() {
LogHelper.reset("org.apache.activemq")
LogHelper.reset("org.apache.activemq", "io.atomix")
cluster.map { it.client.close().asCordaFuture() }.transpose().getOrThrow()
cluster.map { it.server.shutdown().asCordaFuture() }.transpose().getOrThrow()
databases.forEach { it.close() }
@ -65,28 +70,38 @@ class DistributedImmutableMapTests {
fun `stores entries correctly`() {
val client = cluster.last().client
val entries = mapOf("key1" to "value1", "key2" to "value2")
val states = listOf(StateRef(SecureHash.randomSHA256(), 0), StateRef(SecureHash.randomSHA256(), 0))
val txId: SecureHash = SecureHash.randomSHA256()
val requestingPartyName = ALICE_NAME
val requestSignature = ByteArray(1024)
val conflict = client.submit(DistributedImmutableMap.Commands.PutAll(entries)).getOrThrow()
val commitCommand = RaftTransactionCommitLog.Commands.CommitTransaction(states, txId, requestingPartyName.toString(), requestSignature)
val conflict = client.submit(commitCommand).getOrThrow()
assertTrue { conflict.isEmpty() }
val value1 = client.submit(DistributedImmutableMap.Commands.Get<String, String>("key1"))
val value2 = client.submit(DistributedImmutableMap.Commands.Get<String, String>("key2"))
val value1 = client.submit(RaftTransactionCommitLog.Commands.Get(states[0]))
val value2 = client.submit(RaftTransactionCommitLog.Commands.Get(states[1]))
assertEquals(value1.getOrThrow(), "value1")
assertEquals(value2.getOrThrow(), "value2")
assertEquals(value1.getOrThrow(), txId)
assertEquals(value2.getOrThrow(), txId)
}
@Test
fun `returns conflict for duplicate entries`() {
val client = cluster.last().client
val entries = mapOf("key1" to "value1", "key2" to "value2")
val states = listOf(StateRef(SecureHash.randomSHA256(), 0), StateRef(SecureHash.randomSHA256(), 0))
val txId: SecureHash = SecureHash.randomSHA256()
val requestingPartyName = ALICE_NAME
val requestSignature = ByteArray(1024)
var conflict = client.submit(DistributedImmutableMap.Commands.PutAll(entries)).getOrThrow()
val commitCommand = RaftTransactionCommitLog.Commands.CommitTransaction(states, txId, requestingPartyName.toString(), requestSignature)
var conflict = client.submit(commitCommand).getOrThrow()
assertTrue { conflict.isEmpty() }
conflict = client.submit(DistributedImmutableMap.Commands.PutAll(entries)).getOrThrow()
assertTrue { conflict == entries }
conflict = client.submit(commitCommand).getOrThrow()
assertEquals(conflict.keys, states.toSet())
conflict.forEach { assertEquals(it.value, txId) }
}
private fun setUpCluster(nodeCount: Int = 3): List<Member> {
@ -101,11 +116,12 @@ class DistributedImmutableMapTests {
val address = Address(myAddress.host, myAddress.port)
val database = configureDatabase(makeTestDataSourceProperties(), DatabaseConfig(runMigration = true), rigorousMock(), NodeSchemaService(includeNotarySchemas = true))
databases.add(database)
val stateMachineFactory = { DistributedImmutableMap(database, RaftUniquenessProvider.Companion::createMap) }
val stateMachineFactory = { RaftTransactionCommitLog(database, Clock.systemUTC(), RaftUniquenessProvider.Companion::createMap) }
val server = CopycatServer.builder(address)
.withStateMachine(stateMachineFactory)
.withStorage(storage)
.withSerializer(RaftTransactionCommitLog.serializer)
.build()
val serverInitFuture = if (clusterAddress != null) {
@ -117,6 +133,7 @@ class DistributedImmutableMapTests {
val client = CopycatClient.builder(address)
.withConnectionStrategy(ConnectionStrategies.EXPONENTIAL_BACKOFF)
.withSerializer(RaftTransactionCommitLog.serializer)
.build()
return serverInitFuture.thenCompose { client.connect(address) }.thenApply { Member(it, server) }
}

2
samples/irs-demo/web/src/test/kotlin/net/corda/irs/web/demo/IrsDemoClientApi.kt
View File

@ -22,7 +22,7 @@ class IRSDemoClientApi(hostAndPort: NetworkHostAndPort) {
private val api = HttpApi.fromHostAndPort(hostAndPort, apiRoot)
fun runTrade(tradeId: String, oracleName: CordaX500Name) {
val fileContents = IOUtils.toString(javaClass.classLoader.getResourceAsStream("net/corda/irs/simulation/example-irs-trade.json"), Charsets.UTF_8.name())
val fileContents = IOUtils.toString(javaClass.classLoader.getResourceAsStream("net/corda/irs/web/simulation/example-irs-trade.json"), Charsets.UTF_8.name())
val tradeFile = fileContents.replace("tradeXXX", tradeId).replace("oracleXXX", oracleName.toString())
api.postJson("deals", tradeFile)
}

4
samples/network-visualiser/src/main/kotlin/net/corda/netmap/simulation/IRSSimulation.kt
View File

@ -139,7 +139,9 @@ class IRSSimulation(networkSendManuallyPumped: Boolean, runAsync: Boolean, laten
// have the convenient copy() method that'd let us make small adjustments. Instead they're partly mutable.
// TODO: We should revisit this in post-Excalibur cleanup and fix, e.g. by introducing an interface.
val irs = om.readValue<InterestRateSwap.State>(javaClass.classLoader.getResourceAsStream("net/corda/irs/web/simulation/trade.json")
val resourceAsStream = javaClass.classLoader.getResourceAsStream("net/corda/irs/web/simulation/trade.json")
?: error("Trade representation cannot be loaded.")
val irs = om.readValue<InterestRateSwap.State>(resourceAsStream
.reader()
.readText()
.replace("oracleXXX", RatesOracleNode.RATES_SERVICE_NAME.toString()))

0
samples/irs-demo/web/src/test/resources/net/corda/irs/web/simulation/trade.json → samples/network-visualiser/src/main/resources/net/corda/irs/web/simulation/trade.json
View File

19
samples/notary-demo/src/main/kotlin/net/corda/notarydemo/MyCustomNotaryService.kt
View File

@ -15,14 +15,13 @@ import net.corda.core.contracts.TimeWindow
import net.corda.core.contracts.TransactionVerificationException
import net.corda.core.flows.*
import net.corda.core.internal.ResolveTransactionsFlow
import net.corda.core.internal.validateRequest
import net.corda.core.internal.validateRequestSignature
import net.corda.core.node.AppServiceHub
import net.corda.core.node.services.CordaService
import net.corda.core.node.services.TrustedAuthorityNotaryService
import net.corda.core.transactions.SignedTransaction
import net.corda.core.transactions.TransactionWithSignatures
import net.corda.core.transactions.WireTransaction
import net.corda.core.utilities.unwrap
import net.corda.node.services.transactions.PersistentUniquenessProvider
import java.security.PublicKey
import java.security.SignatureException
@ -36,7 +35,7 @@ import java.security.SignatureException
// START 1
@CordaService
class MyCustomValidatingNotaryService(override val services: AppServiceHub, override val notaryIdentityKey: PublicKey) : TrustedAuthorityNotaryService() {
override val uniquenessProvider = PersistentUniquenessProvider()
override val uniquenessProvider = PersistentUniquenessProvider(services.clock)
override fun createServiceFlow(otherPartySession: FlowSession): FlowLogic<Void?> = MyValidatingNotaryFlow(otherPartySession, this)
@ -53,9 +52,10 @@ class MyValidatingNotaryFlow(otherSide: FlowSession, service: MyCustomValidating
* transaction dependency chain.
*/
@Suspendable
override fun receiveAndVerifyTx(): TransactionParts {
override fun validateRequest(requestPayload: NotarisationPayload): TransactionParts {
try {
val stx = receiveTransaction()
val stx = requestPayload.signedTransaction
validateRequestSignature(NotarisationRequest(stx.inputs, stx.id), requestPayload.requestSignature)
val notary = stx.notary
checkNotary(notary)
verifySignatures(stx)
@ -71,15 +71,6 @@ class MyValidatingNotaryFlow(otherSide: FlowSession, service: MyCustomValidating
}
}
@Suspendable
private fun receiveTransaction(): SignedTransaction {
return otherSideSession.receive<NotarisationPayload>().unwrap {
val stx = it.signedTransaction
validateRequest(NotarisationRequest(stx.inputs, stx.id), it.requestSignature)
stx
}
}
@Suspendable
private fun resolveAndContractVerify(stx: SignedTransaction) {
subFlow(ResolveTransactionsFlow(stx, otherSideSession))