| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.tuweni.devp2p.v5 |
| |
| import kotlinx.coroutines.runBlocking |
| import org.apache.tuweni.bytes.Bytes |
| import org.apache.tuweni.crypto.Hash |
| import org.apache.tuweni.crypto.SECP256K1 |
| import org.apache.tuweni.devp2p.EthereumNodeRecord |
| import org.apache.tuweni.devp2p.v5.internal.DefaultAuthenticationProvider |
| import org.apache.tuweni.devp2p.v5.internal.DefaultPacketCodec |
| import org.apache.tuweni.devp2p.v5.internal.DefaultUdpConnector |
| import org.apache.tuweni.devp2p.v5.packet.FindNodeMessage |
| import org.apache.tuweni.devp2p.v5.packet.RandomMessage |
| import org.apache.tuweni.devp2p.v5.packet.UdpMessage |
| import org.apache.tuweni.devp2p.v5.packet.WhoAreYouMessage |
| import org.apache.tuweni.io.Base64URLSafe |
| import org.apache.tuweni.junit.BouncyCastleExtension |
| import org.apache.tuweni.net.coroutines.CoroutineDatagramChannel |
| import org.junit.jupiter.api.AfterEach |
| import org.junit.jupiter.api.BeforeEach |
| import org.junit.jupiter.api.Test |
| import org.junit.jupiter.api.extension.ExtendWith |
| import java.net.InetAddress |
| import java.net.InetSocketAddress |
| import java.nio.ByteBuffer |
| |
| @ExtendWith(BouncyCastleExtension::class) |
| class HandshakeIntegrationTest { |
| |
| private val keyPair: SECP256K1.KeyPair = SECP256K1.KeyPair.random() |
| private val enr: Bytes = EthereumNodeRecord.toRLP(keyPair, ip = InetAddress.getLocalHost(), udp = SERVICE_PORT) |
| private val address: InetSocketAddress = InetSocketAddress(InetAddress.getLocalHost(), SERVICE_PORT) |
| private val connector: UdpConnector = DefaultUdpConnector(address, keyPair, enr) |
| |
| private val clientKeyPair = SECP256K1.KeyPair.random() |
| private val clientEnr = EthereumNodeRecord.toRLP(clientKeyPair, ip = InetAddress.getLocalHost(), udp = CLIENT_PORT) |
| private val authProvider = DefaultAuthenticationProvider(clientKeyPair, clientEnr) |
| private val clientCodec = DefaultPacketCodec(clientKeyPair, clientEnr, authenticationProvider = authProvider) |
| private val socket = CoroutineDatagramChannel.open() |
| |
| private val clientNodeId: Bytes = Hash.sha2_256(clientEnr) |
| |
| private val bootList = listOf("enr:${Base64URLSafe.encode(clientEnr)}") |
| private val service: NodeDiscoveryService = |
| DefaultNodeDiscoveryService(keyPair, SERVICE_PORT, bootstrapENRList = bootList, connector = connector) |
| |
| @BeforeEach |
| fun init() { |
| socket.bind(InetSocketAddress(9091)) |
| service.start() |
| } |
| |
| @Test |
| fun discv5HandshakeTest() { |
| runBlocking { |
| val buffer = ByteBuffer.allocate(UdpMessage.MAX_UDP_MESSAGE_SIZE) |
| socket.receive(buffer) |
| buffer.flip() |
| |
| var content = Bytes.wrapByteBuffer(buffer) |
| var decodingResult = clientCodec.decode(content) |
| assert(decodingResult.message is RandomMessage) |
| buffer.clear() |
| |
| sendWhoAreYou() |
| |
| socket.receive(buffer) |
| buffer.flip() |
| content = Bytes.wrapByteBuffer(buffer) |
| decodingResult = clientCodec.decode(content) |
| assert(decodingResult.message is FindNodeMessage) |
| assert(null != authProvider.findSessionKey(Hash.sha2_256(enr).toHexString())) |
| |
| val message = decodingResult.message as FindNodeMessage |
| |
| assert(message.distance == 0) |
| assert(message.requestId.size() == UdpMessage.REQUEST_ID_LENGTH) |
| } |
| } |
| |
| @AfterEach |
| fun tearDown() { |
| service.terminate(true) |
| socket.close() |
| } |
| |
| private suspend fun sendWhoAreYou() { |
| val message = WhoAreYouMessage() |
| val bytes = clientCodec.encode(message, clientNodeId) |
| val buffer = ByteBuffer.wrap(bytes.toArray()) |
| socket.send(buffer, address) |
| } |
| |
| companion object { |
| private const val SERVICE_PORT: Int = 9090 |
| private const val CLIENT_PORT: Int = 9091 |
| } |
| } |