106 lines
4.1 KiB
Nim
106 lines
4.1 KiB
Nim
# beacon_chain
|
|
# Copyright (c) 2022 Status Research & Development GmbH
|
|
# Licensed and distributed under either of
|
|
# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
|
|
# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
|
|
# at your option. This file may not be copied, modified, or distributed except according to those terms.
|
|
|
|
# https://notes.ethereum.org/@9AeMAlpyQYaAAyuj47BzRw/rkwW3ceVY
|
|
# Monitor traffic: socat -v TCP-LISTEN:9550,fork TCP-CONNECT:127.0.0.1:8550
|
|
|
|
import
|
|
std/options,
|
|
stew/results,
|
|
chronos,
|
|
../beacon_chain/eth1/eth1_monitor
|
|
|
|
from nimcrypto/utils import fromHex
|
|
from web3/engine_api_types import PayloadExecutionStatus
|
|
from ../beacon_chain/networking/network_metadata import Eth1Network
|
|
from ../beacon_chain/spec/datatypes/base import ZERO_HASH
|
|
from ../beacon_chain/spec/presets import Eth1Address, defaultRuntimeConfig
|
|
|
|
when (NimMajor, NimMinor) < (1, 4):
|
|
{.push raises: [Defect].}
|
|
else:
|
|
{.push raises: [].}
|
|
|
|
# TODO hm, actually factor this out into a callable function
|
|
# and have a version with the result of the JWT secret slurp for testing purposes
|
|
proc readJwtSecret(jwtSecretFile: string): Result[seq[byte], cstring] =
|
|
# https://github.com/ethereum/execution-apis/blob/v1.0.0-alpha.9/src/engine/authentication.md#key-distribution
|
|
# If such a parameter is given, but the file cannot be read, or does not
|
|
# contain a hex-encoded key of at least 256 bits, the client should treat
|
|
# this as an error: either abort the startup, or show error and continue
|
|
# without exposing the authenticated port.
|
|
const MIN_SECRET_LEN = 32
|
|
|
|
try:
|
|
let lines = readLines(jwtSecretFile, 1)
|
|
if lines.len > 0:
|
|
# Secret JWT key is parsed in constant time using nimcrypto:
|
|
# https://github.com/cheatfate/nimcrypto/pull/44
|
|
let secret = utils.fromHex(lines[0])
|
|
if secret.len >= MIN_SECRET_LEN:
|
|
ok(secret)
|
|
else:
|
|
err("JWT secret not at least 256 bits")
|
|
else:
|
|
err("JWT secret file empty")
|
|
except IOError as exc:
|
|
err("JWT secret file could not be read from")
|
|
|
|
const
|
|
feeRecipient =
|
|
Eth1Address.fromHex("0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b")
|
|
web3Url = "http://127.0.0.1:8551"
|
|
|
|
proc run() {.async.} =
|
|
let
|
|
jwtSecret = some readJwtSecret("jwt.hex").get
|
|
eth1Monitor = Eth1Monitor.init(
|
|
defaultRuntimeConfig, db = nil, nil, @[web3Url],
|
|
none(DepositContractSnapshot), none(Eth1Network),
|
|
false, jwtSecret, true)
|
|
web3Provider = (await Web3DataProvider.new(
|
|
default(Eth1Address), web3Url, jwtSecret)).get
|
|
|
|
const feeRecipient =
|
|
Eth1Address.fromHex("0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b")
|
|
let
|
|
existingBlock = await web3Provider.getBlockByNumber(0)
|
|
await eth1Monitor.ensureDataProvider()
|
|
let
|
|
payloadId = await eth1Monitor.forkchoiceUpdated(
|
|
existingBlock.hash.asEth2Digest,
|
|
existingBlock.hash.asEth2Digest,
|
|
existingBlock.timestamp.uint64 + 12,
|
|
ZERO_HASH.data, # Random
|
|
feeRecipient)
|
|
payload = await eth1Monitor.getPayload(
|
|
array[8, byte] (payloadId.payloadId.get))
|
|
payloadStatus = await eth1Monitor.newPayload(payload)
|
|
fcupdatedStatus = await eth1Monitor.forkchoiceUpdated(
|
|
payload.blockHash.asEth2Digest,
|
|
payload.blockHash.asEth2Digest,
|
|
existingBlock.timestamp.uint64 + 24,
|
|
ZERO_HASH.data, # Random
|
|
feeRecipient)
|
|
|
|
payload2 = await eth1Monitor.getPayload(
|
|
array[8, byte] (fcupdatedStatus.payloadId.get))
|
|
payloadStatus2 = await eth1Monitor.newPayload(payload2)
|
|
fcupdatedStatus2 = await eth1Monitor.forkchoiceUpdated(
|
|
payload2.blockHash.asEth2Digest,
|
|
payload2.blockHash.asEth2Digest,
|
|
existingBlock.timestamp.uint64 + 36,
|
|
ZERO_HASH.data, # Random
|
|
feeRecipient)
|
|
|
|
doAssert payloadStatus.status == PayloadExecutionStatus.valid
|
|
doAssert fcupdatedStatus.payloadStatus.status == PayloadExecutionStatus.valid
|
|
doAssert payloadStatus2.status == PayloadExecutionStatus.valid
|
|
doAssert fcupdatedStatus2.payloadStatus.status == PayloadExecutionStatus.valid
|
|
|
|
waitFor run()
|