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Refactor to utilize Kotlin features

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This commit is contained in:
Christian Basler 2018-02-16 17:04:08 +01:00
parent b93f382ccd
commit fab1c06135
7 changed files with 92 additions and 53 deletions
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24
core/src/main/kotlin/ch/dissem/bitmessage/entity/valueobject/extended/Message.kt
View File

@ -37,33 +37,33 @@ import java.util.*
data class Message constructor(
val subject: String,
val body: String,
val parents: List<InventoryVector>,
val files: List<Attachment>
val parents: List<InventoryVector> = emptyList(),
val files: List<Attachment> = emptyList()
) : ExtendedEncoding.ExtendedType {
override val type: String = TYPE
override fun pack(): MPMap<MPString, MPType<*>> {
val result = MPMap<MPString, MPType<*>>()
result.put("".mp, TYPE.mp)
result.put("subject".mp, subject.mp)
result.put("body".mp, body.mp)
result["".mp] = TYPE.mp
result["subject".mp] = subject.mp
result["body".mp] = body.mp
if (!files.isEmpty()) {
val items = MPArray<MPMap<MPString, MPType<*>>>()
result.put("files".mp, items)
result["files".mp] = items
for (file in files) {
val item = MPMap<MPString, MPType<*>>()
item.put("name".mp, file.name.mp)
item.put("data".mp, file.data.mp)
item.put("type".mp, file.type.mp)
item.put("disposition".mp, file.disposition.name.mp)
item["name".mp] = file.name.mp
item["data".mp] = file.data.mp
item["type".mp] = file.type.mp
item["disposition".mp] = file.disposition.name.mp
items.add(item)
}
}
if (!parents.isEmpty()) {
val items = MPArray<MPBinary>()
result.put("parents".mp, items)
result["parents".mp] = items
for ((hash) in parents) {
items.add(mp(*hash))
}
@ -179,6 +179,6 @@ data class Message constructor(
companion object {
private val LOG = LoggerFactory.getLogger(Message::class.java)
val TYPE = "message"
const val TYPE = "message"
}
}

10
core/src/main/kotlin/ch/dissem/bitmessage/ports/Cryptography.kt
View File

@ -156,6 +156,16 @@ interface Cryptography {
fun doProofOfWork(objectMessage: ObjectMessage, nonceTrialsPerByte: Long,
extraBytes: Long, callback: ProofOfWorkEngine.Callback)
@JvmSynthetic
fun doProofOfWork(objectMessage: ObjectMessage, nonceTrialsPerByte: Long,
extraBytes: Long, callback: (ByteArray, ByteArray) -> Unit) {
doProofOfWork(objectMessage, nonceTrialsPerByte, extraBytes, object : ProofOfWorkEngine.Callback {
override fun onNonceCalculated(initialHash: ByteArray, nonce: ByteArray) {
callback.invoke(initialHash, nonce)
}
})
}
/**
* @param objectMessage to be checked
* *

26
core/src/main/kotlin/ch/dissem/bitmessage/ports/ProofOfWorkEngine.kt
View File

@ -23,16 +23,32 @@ interface ProofOfWorkEngine {
/**
* Returns a nonce, such that the first 8 bytes from sha512(sha512(nonce||initialHash)) represent a unsigned long
* smaller than target.
*
* @param initialHash the SHA-512 hash of the object to send, sans nonce
* *
* @param target the target, representing an unsigned long
* *
* @param callback called with the calculated nonce as argument. The ProofOfWorkEngine implementation must make
* * sure this is only called once.
* @param callback called with the initial hash and the calculated nonce as argument. The ProofOfWorkEngine
* implementation must make sure this is only called once.
*/
fun calculateNonce(initialHash: ByteArray, target: ByteArray, callback: Callback)
/**
* Returns a nonce, such that the first 8 bytes from sha512(sha512(nonce||initialHash)) represent a unsigned long
* smaller than target.
*
* @param initialHash the SHA-512 hash of the object to send, sans nonce
* @param target the target, representing an unsigned long
* @param callback called with the initial hash and the calculated nonce as argument. The ProofOfWorkEngine
* implementation must make sure this is only called once.
*/
@JvmSynthetic
fun calculateNonce(initialHash: ByteArray, target: ByteArray, callback: (ByteArray, ByteArray) -> Unit) {
calculateNonce(initialHash, target, object : Callback {
override fun onNonceCalculated(initialHash: ByteArray, nonce: ByteArray) {
callback.invoke(initialHash, nonce)
}
})
}
interface Callback {
/**
* @param nonce 8 bytes nonce

10
core/src/test/kotlin/ch/dissem/bitmessage/BitmessageContextTest.kt
View File

@ -126,7 +126,7 @@ class BitmessageContextTest {
ctx.addContact(contact)
verify(ctx.addresses, timeout(1000).atLeastOnce()).save(eq(contact))
verify(testPowEngine, timeout(1000)).calculateNonce(any(), any(), any())
verify(testPowEngine, timeout(1000)).calculateNonce(any(), any(), any<ProofOfWorkEngine.Callback>())
}
@Test
@ -139,7 +139,7 @@ class BitmessageContextTest {
ctx.addContact(contact)
verify(ctx.addresses, times(1)).save(contact)
verify(testPowEngine, never()).calculateNonce(any(), any(), any())
verify(testPowEngine, never()).calculateNonce(any(), any(), any<ProofOfWorkEngine.Callback>())
}
@Test
@ -162,7 +162,7 @@ class BitmessageContextTest {
ctx.addContact(contact)
verify(ctx.addresses, atLeastOnce()).save(contact)
verify(testPowEngine, never()).calculateNonce(any(), any(), any())
verify(testPowEngine, never()).calculateNonce(any(), any(), any<ProofOfWorkEngine.Callback>())
}
@Test
@ -186,7 +186,7 @@ class BitmessageContextTest {
ctx.addContact(contact)
verify(ctx.addresses, atLeastOnce()).save(any())
verify(testPowEngine, never()).calculateNonce(any(), any(), any())
verify(testPowEngine, never()).calculateNonce(any(), any(), any<ProofOfWorkEngine.Callback>())
}
@Test
@ -245,7 +245,7 @@ class BitmessageContextTest {
"Subject", "Message")
verify(ctx.internals.proofOfWorkRepository, timeout(1000).atLeastOnce())
.putObject(argThat { payload.type == ObjectType.BROADCAST }, eq(1000L), eq(1000L))
verify(testPowEngine).calculateNonce(any(), any(), any())
verify(testPowEngine).calculateNonce(any(), any(), any<ProofOfWorkEngine.Callback>())
verify(ctx.messages, timeout(10000).atLeastOnce()).save(argThat<Plaintext> { type == Type.BROADCAST })
}

5
core/src/test/kotlin/ch/dissem/bitmessage/ProofOfWorkServiceTest.kt
View File

@ -23,6 +23,7 @@ import ch.dissem.bitmessage.entity.Plaintext.Type.MSG
import ch.dissem.bitmessage.entity.payload.GenericPayload
import ch.dissem.bitmessage.entity.payload.Msg
import ch.dissem.bitmessage.ports.Cryptography
import ch.dissem.bitmessage.ports.ProofOfWorkEngine
import ch.dissem.bitmessage.ports.ProofOfWorkRepository
import ch.dissem.bitmessage.utils.Singleton
import ch.dissem.bitmessage.utils.TestUtils
@ -65,11 +66,11 @@ class ProofOfWorkServiceTest {
fun `ensure missing proof of work is done`() {
whenever(ctx.proofOfWorkRepository.getItems()).thenReturn(Arrays.asList<ByteArray>(ByteArray(64)))
whenever(ctx.proofOfWorkRepository.getItem(any())).thenReturn(ProofOfWorkRepository.Item(obj, 1001, 1002))
doNothing().whenever(cryptography).doProofOfWork(any(), any(), any(), any())
doNothing().whenever(cryptography).doProofOfWork(any(), any(), any(), any<ProofOfWorkEngine.Callback>())
ctx.proofOfWorkService.doMissingProofOfWork(10)
verify(cryptography, timeout(1000)).doProofOfWork(eq(obj), eq(1001L), eq(1002L), any())
verify(cryptography, timeout(1000)).doProofOfWork(eq(obj), eq(1001L), eq(1002L), any<ProofOfWorkEngine.Callback>())
}
@Test

7
cryptography-bc/src/test/kotlin/ch/dissem/bitmessage/security/CryptographyTest.kt
View File

@ -89,12 +89,7 @@ class CryptographyTest {
stream = 1
)
val waiter = CallbackWaiter<ByteArray>()
crypto.doProofOfWork(objectMessage, 1000, 1000,
object : ProofOfWorkEngine.Callback {
override fun onNonceCalculated(initialHash: ByteArray, nonce: ByteArray) {
waiter.setValue(nonce)
}
})
crypto.doProofOfWork(objectMessage, 1000, 1000) { _, nonce -> waiter.setValue(nonce) }
objectMessage.nonce = waiter.waitForValue()
try {
crypto.checkProofOfWork(objectMessage, 1000, 1000)

49
extensions/src/main/kotlin/ch/dissem/bitmessage/extensions/CryptoCustomMessage.kt
View File

@ -42,19 +42,21 @@ import java.io.OutputStream
*/
class CryptoCustomMessage<T : Streamable> : CustomMessage {
private val dataReader: Reader<T>?
private val dataReader: (BitmessageAddress, InputStream) -> T
private var container: CryptoBox? = null
var sender: BitmessageAddress? = null
private set
private var data: T? = null
private set
constructor(data: T) : super(COMMAND, null) {
this.data = data
this.dataReader = null
this.dataReader = { _, _ -> data }
}
private constructor(container: CryptoBox, dataReader: Reader<T>) : super(COMMAND, null) {
private constructor(container: CryptoBox, dataReader: (BitmessageAddress, InputStream) -> T) : super(
COMMAND,
null
) {
this.container = container
this.dataReader = dataReader
}
@ -81,8 +83,9 @@ class CryptoCustomMessage<T : Streamable> : CustomMessage {
@Throws(DecryptionFailedException::class)
fun decrypt(privateKey: ByteArray): T {
val input = SignatureCheckingInputStream(container?.decrypt(privateKey) ?: throw IllegalStateException("no encrypted data available"))
if (dataReader == null) throw IllegalStateException("no data reader available")
val input = SignatureCheckingInputStream(
container?.decrypt(privateKey) ?: throw IllegalStateException("no encrypted data available")
)
val addressVersion = varInt(input)
val stream = varInt(input)
@ -92,7 +95,8 @@ class CryptoCustomMessage<T : Streamable> : CustomMessage {
val nonceTrialsPerByte = if (addressVersion >= 3) varInt(input) else 0
val extraBytes = if (addressVersion >= 3) varInt(input) else 0
val sender = BitmessageAddress(Factory.createPubkey(
val sender = BitmessageAddress(
Factory.createPubkey(
addressVersion,
stream,
publicSigningKey,
@ -100,10 +104,11 @@ class CryptoCustomMessage<T : Streamable> : CustomMessage {
nonceTrialsPerByte,
extraBytes,
behaviorBitfield
))
)
)
this.sender = sender
data = dataReader.read(sender, input)
data = dataReader.invoke(sender, input)
input.checkSignature(sender.pubkey!!)
@ -127,7 +132,8 @@ class CryptoCustomMessage<T : Streamable> : CustomMessage {
fun read(sender: BitmessageAddress, input: InputStream): T
}
private inner class SignatureCheckingInputStream internal constructor(private val wrapped: InputStream) : InputStream() {
private inner class SignatureCheckingInputStream internal constructor(private val wrapped: InputStream) :
InputStream() {
private val out = ByteArrayOutputStream()
override fun read(): Int {
@ -145,13 +151,24 @@ class CryptoCustomMessage<T : Streamable> : CustomMessage {
}
companion object {
@JvmField
val COMMAND = "ENCRYPTED"
const val COMMAND = "ENCRYPTED"
@JvmStatic
fun <T : Streamable> read(data: CustomMessage, dataReader: Reader<T>): CryptoCustomMessage<T> {
val cryptoBox = CryptoBox.read(ByteArrayInputStream(data.getData()), data.getData().size)
return CryptoCustomMessage(cryptoBox, dataReader)
}
fun <T : Streamable> read(data: CustomMessage, dataReader: Reader<T>): CryptoCustomMessage<T> =
CryptoCustomMessage(
CryptoBox.read(ByteArrayInputStream(data.getData()), data.getData().size)
) { address, input ->
dataReader.read(address, input)
}
@JvmSynthetic
fun <T : Streamable> read(
data: CustomMessage,
dataReader: (BitmessageAddress, InputStream) -> T
): CryptoCustomMessage<T> =
CryptoCustomMessage(
CryptoBox.read(ByteArrayInputStream(data.getData()), data.getData().size),
dataReader
)
}
}