mirror of
https://github.com/status-im/nimbus-eth2.git
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0708fcd7cf
The `eth1_monitor` check to require engine API from bellatrix onward has issues in setups where the EL and CL are started simultaneously because the EL may not be ready to answer requests by the time that the check is performed. This can be observed, e.g., on Raspberry Pi 4 when using Besu as the EL client. Now that the merge transition happened, the check is also not that useful anymore, as users have other ways to know that their setup is not working correctly (e.g., repeated exchange logs)
106 lines
4.1 KiB
Nim
106 lines
4.1 KiB
Nim
# beacon_chain
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# Copyright (c) 2022 Status Research & Development GmbH
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# Licensed and distributed under either of
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# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
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# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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# https://notes.ethereum.org/@9AeMAlpyQYaAAyuj47BzRw/rkwW3ceVY
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# Monitor traffic: socat -v TCP-LISTEN:9550,fork TCP-CONNECT:127.0.0.1:8550
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import
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std/options,
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stew/results,
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chronos,
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../beacon_chain/eth1/eth1_monitor
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from nimcrypto/utils import fromHex
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from web3/engine_api_types import PayloadExecutionStatus
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from ../beacon_chain/networking/network_metadata import Eth1Network
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from ../beacon_chain/spec/datatypes/base import ZERO_HASH
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from ../beacon_chain/spec/presets import Eth1Address, defaultRuntimeConfig
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when (NimMajor, NimMinor) < (1, 4):
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{.push raises: [Defect].}
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else:
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{.push raises: [].}
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# TODO hm, actually factor this out into a callable function
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# and have a version with the result of the JWT secret slurp for testing purposes
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proc readJwtSecret(jwtSecretFile: string): Result[seq[byte], cstring] =
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# https://github.com/ethereum/execution-apis/blob/v1.0.0-beta.1/src/engine/authentication.md#key-distribution
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# If such a parameter is given, but the file cannot be read, or does not
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# contain a hex-encoded key of 256 bits, the client should treat this as an
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# error: either abort the startup, or show error and continue without
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# exposing the authenticated port.
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const MIN_SECRET_LEN = 32
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try:
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let lines = readLines(jwtSecretFile, 1)
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if lines.len > 0:
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# Secret JWT key is parsed in constant time using nimcrypto:
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# https://github.com/cheatfate/nimcrypto/pull/44
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let secret = utils.fromHex(lines[0])
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if secret.len >= MIN_SECRET_LEN:
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ok(secret)
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else:
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err("JWT secret not at least 256 bits")
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else:
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err("JWT secret file empty")
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except IOError as exc:
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err("JWT secret file could not be read from")
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const
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feeRecipient =
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Eth1Address.fromHex("0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b")
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web3Url = "http://127.0.0.1:8551"
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proc run() {.async.} =
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let
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jwtSecret = some readJwtSecret("jwt.hex").get
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eth1Monitor = Eth1Monitor.init(
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defaultRuntimeConfig, db = nil, nil, @[web3Url],
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none(DepositContractSnapshot), none(Eth1Network),
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false, jwtSecret)
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web3Provider = (await Web3DataProvider.new(
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default(Eth1Address), web3Url, jwtSecret)).get
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const feeRecipient =
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Eth1Address.fromHex("0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b")
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let
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existingBlock = await web3Provider.getBlockByNumber(0)
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await eth1Monitor.ensureDataProvider()
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let
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payloadId = await eth1Monitor.forkchoiceUpdated(
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existingBlock.hash.asEth2Digest,
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existingBlock.hash.asEth2Digest,
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existingBlock.timestamp.uint64 + 12,
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ZERO_HASH.data, # Random
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feeRecipient)
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payload = await eth1Monitor.getPayload(
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array[8, byte] (payloadId.payloadId.get))
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payloadStatus = await eth1Monitor.newPayload(payload)
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fcupdatedStatus = await eth1Monitor.forkchoiceUpdated(
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payload.blockHash.asEth2Digest,
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payload.blockHash.asEth2Digest,
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existingBlock.timestamp.uint64 + 24,
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ZERO_HASH.data, # Random
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feeRecipient)
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payload2 = await eth1Monitor.getPayload(
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array[8, byte] (fcupdatedStatus.payloadId.get))
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payloadStatus2 = await eth1Monitor.newPayload(payload2)
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fcupdatedStatus2 = await eth1Monitor.forkchoiceUpdated(
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payload2.blockHash.asEth2Digest,
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payload2.blockHash.asEth2Digest,
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existingBlock.timestamp.uint64 + 36,
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ZERO_HASH.data, # Random
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feeRecipient)
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doAssert payloadStatus.status == PayloadExecutionStatus.valid
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doAssert fcupdatedStatus.payloadStatus.status == PayloadExecutionStatus.valid
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doAssert payloadStatus2.status == PayloadExecutionStatus.valid
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doAssert fcupdatedStatus2.payloadStatus.status == PayloadExecutionStatus.valid
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waitFor run()
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