nimbus-eth1/fluffy/tools/blockwalk.nim

106 lines
3.1 KiB
Nim

# Nimbus
# Copyright (c) 2022-2024 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.
# Testing tool to verify that a specific range of blocks can be fetched from
# the Portal network.
{.push raises: [].}
import
std/strutils,
confutils,
chronicles,
chronicles/topics_registry,
stew/byteutils,
web3/primitives,
../rpc/eth_rpc_client
type BlockWalkConf* = object
logLevel* {.
defaultValue: LogLevel.INFO,
defaultValueDesc: $LogLevel.INFO,
desc: "Sets the log level",
name: "log-level"
.}: LogLevel
rpcAddress* {.
desc: "Address of the JSON-RPC service",
defaultValue: "127.0.0.1",
name: "rpc-address"
.}: string
rpcPort* {.
defaultValue: 8545, desc: "Port of the JSON-RPC service", name: "rpc-port"
.}: uint16
blockHash* {.
desc: "The block hash from where to start walking the blocks backwards",
name: "block-hash"
.}: Hash32
proc parseCmdArg*(T: type Hash32, p: string): T {.raises: [ValueError].} =
Hash32.fromHex(p)
proc completeCmdArg*(T: type Hash32, val: string): seq[string] =
return @[]
proc walkBlocks(client: RpcClient, startHash: Hash32) {.async: (raises: []).} =
var parentHash = startHash
var blockNumber: Quantity
# Should be 0x0, but block 0 does not exist in the json data file
while blockNumber != Quantity(0x1):
let parentBlockOpt =
try:
await client.eth_getBlockByHash(parentHash, false)
except RpcPostError as e:
# RpcPostError when for example timing out on the request. Could retry
# in this case.
fatal "Error occured on JSON-RPC request", error = e.msg
quit 1
except CatchableError as e:
fatal "Error occured on JSON-RPC request", error = e.msg
quit 1
# Using the http connection re-use seems to slow down these sequentual
# requests considerably. Force a new connection setup by doing a close after
# each request.
try:
await client.close()
except CatchableError as e:
fatal "Error closing RPC client connection", error = e.msg
quit 1
if parentBlockOpt.isNone():
fatal "Failed getting parent block", hash = parentHash
quit 1
let parentBlock = parentBlockOpt.get()
blockNumber = parentBlock.number
parentHash = parentBlock.parentHash
echo "Block " & $distinctBase(blockNumber) & ": " & $parentBlock.hash
proc run(config: BlockWalkConf) {.async: (raises: []).} =
let client = newRpcHttpClient()
try:
await client.connect(config.rpcAddress, Port(config.rpcPort), false)
except CatchableError as e:
fatal "Error connecting to JSON-RPC service", error = e.msg
quit 1
await walkBlocks(client, config.blockHash)
when isMainModule:
{.pop.}
let config = BlockWalkConf.load()
{.push raises: [].}
setLogLevel(config.logLevel)
waitFor run(config)