638 lines
22 KiB
Nim
638 lines
22 KiB
Nim
# Nimbus
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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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# Tool to download chain history data from local node, and save it to the json
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# file or sqlite database.
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# In case of json:
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# Block data is stored as it gets transmitted over the wire and as defined here:
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# https://github.com/ethereum/portal-network-specs/blob/master/history-network.md#content-keys-and-values
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#
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# Json file has following format:
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# {
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# "hexEncodedBlockHash: {
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# "header": "the rlp encoded block header as a hex string"
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# "body": "the SSZ encoded container of transactions and uncles as a hex string"
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# "receipts: "The SSZ encoded list of the receipts as a hex string"
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# "number": "block number"
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# },
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# ...,
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# ...,
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# }
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# In case of sqlite:
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# Data is saved in a format friendly to history network i.e one table with 3
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# columns: contentid, contentkey, content.
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# Such format enables queries to quickly find content in range of some node
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# which makes it possible to offer content to nodes in bulk.
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#
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# When using geth as client to download receipts from, be aware that you will
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# have to set the number of blocks to maintain the transaction index for to
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# unlimited if you want access to all transactions/receipts.
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# e.g: `./build/bin/geth --ws --txlookuplimit=0`
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#
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{.push raises: [Defect].}
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import
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std/[json, typetraits, strutils, strformat, os],
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confutils,
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stew/[byteutils, io2],
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json_serialization,
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faststreams, chronicles,
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eth/[common, rlp], chronos,
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eth/common/eth_types_json_serialization,
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json_rpc/rpcclient,
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ncli/e2store,
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../seed_db,
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../../premix/[downloader, parser],
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../network/history/[history_content, accumulator],
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../data/history_data_parser
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# Need to be selective due to the `Block` type conflict from downloader
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from ../network/history/history_network import encode
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proc defaultDataDir*(): string =
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let dataDir = when defined(windows):
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"AppData" / "Roaming" / "EthData"
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elif defined(macosx):
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"Library" / "Application Support" / "EthData"
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else:
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".cache" / "eth-data"
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getHomeDir() / dataDir
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const
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defaultDataDirDesc = defaultDataDir()
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defaultBlockFileName = "eth-block-data"
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defaultAccumulatorFileName = "mainnet-master-accumulator.ssz"
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type
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ExporterCmd* = enum
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# TODO: Need to use the ugly """ multi lines as string concat with &
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# doesn't work well together with confutils.
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exportBlockData =
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"""
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Export block data (headers, bodies and receipts) to a json format or a
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database. Some of this functionality is likely to get deprecated"""
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exportEpochHeaders =
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"""
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Export block headers from an Ethereum JSON RPC Execution endpoint to
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*.e2s files arranged per epoch (8192 blocks)"""
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verifyEpochHeaders =
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"""
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Verify *.e2s files containing block headers. Verify currently only
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means being able to RLP decode the block headers"""
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exportAccumulatorData =
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"""
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Build and export the master accumulator and historical epoch
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accumulators. Requires *.e2s block header files generated with the
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exportHeaders command up until the merge block"""
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printAccumulatorData =
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"""
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Print the root hash of the master accumulator and of all historical
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epoch accumulators. Requires data generated by exportAccumulatorData
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command"""
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exportHeaderRange =
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"""
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Export block headers from an Ethereum JSON RPC Execution endpoint to
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*.e2s files (unlimited amount)"""
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StorageMode* = enum
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Json, Db
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ExporterConf* = object
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logLevel* {.
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defaultValue: LogLevel.INFO
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defaultValueDesc: $LogLevel.INFO
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desc: "Sets the log level"
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name: "log-level" .}: LogLevel
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dataDir* {.
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desc: "The directory where generated data files will be exported to"
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defaultValue: defaultDataDir()
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defaultValueDesc: $defaultDataDirDesc
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name: "data-dir" .}: OutDir
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case cmd* {.
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command
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defaultValue: exportBlockData .}: ExporterCmd
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of exportBlockData:
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startBlock* {.
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desc: "Number of the first block to be exported"
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defaultValue: 0
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name: "start-block" .}: uint64
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endBlock* {.
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desc: "Number of the last block to be exported"
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defaultValue: 0
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name: "end-block" .}: uint64
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fileName* {.
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desc: "File name (minus extension) where block data will be exported to"
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defaultValue: defaultBlockFileName
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defaultValueDesc: $defaultBlockFileName
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name: "file-name" .}: string
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storageMode* {.
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desc: "Storage mode of block data export"
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defaultValue: Json
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name: "storage-mode" .}: StorageMode
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headersOnly* {.
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desc: "Only export the headers instead of full blocks and receipts"
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defaultValue: false
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name: "headers-only" .}: bool
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of exportEpochHeaders:
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startEpoch* {.
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desc: "Number of the first epoch which should be downloaded"
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defaultValue: 0
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name: "start-epoch" .}: uint64
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endEpoch* {.
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desc: "Number of the last epoch which should be downloaded"
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defaultValue: 1896
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name: "end-epoch" .}: uint64
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# TODO:
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# Although options are the same as for exportHeaders, we can't drop them
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# under the same case of as confutils does not agree with that.
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of verifyEpochHeaders:
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startEpochVerify* {.
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desc: "Number of the first epoch which should be downloaded"
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defaultValue: 0
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name: "start-epoch" .}: uint64
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endEpochVerify* {.
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desc: "Number of the last epoch which should be downloaded"
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defaultValue: 1896
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name: "end-epoch" .}: uint64
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of exportAccumulatorData:
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accumulatorFileName* {.
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desc: "File to which the serialized accumulator is written"
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defaultValue: defaultAccumulatorFileName
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defaultValueDesc: $defaultAccumulatorFileName
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name: "accumulator-file-name" .}: string
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writeEpochAccumulators* {.
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desc: "Write also the SSZ encoded epoch accumulators to specific files"
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defaultValue: false
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name: "write-epoch-accumulators" .}: bool
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of printAccumulatorData:
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accumulatorFileNamePrint* {.
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desc: "File from which the serialized accumulator is read"
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defaultValue: defaultAccumulatorFileName
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defaultValueDesc: $defaultAccumulatorFileName
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name: "accumulator-file-name" .}: string
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of exportHeaderRange:
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startBlockNumber* {.
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desc: "Number of the first block header to be exported"
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name: "start-block" .}: uint64
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endBlockNumber* {.
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desc: "Number of the last block header to be exported"
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name: "end-block" .}: uint64
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HeaderRecord = object
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header: string
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number: uint64
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BlockRecord = object
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header: string
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body: string
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receipts: string
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number: uint64
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proc parseCmdArg*(T: type StorageMode, p: TaintedString): T
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{.raises: [Defect, ConfigurationError].} =
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if p == "db":
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return Db
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elif p == "json":
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return Json
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else:
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let msg = "Provided mode: " & p & " is not a valid. Should be `json` or `db`"
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raise newException(ConfigurationError, msg)
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proc completeCmdArg*(T: type StorageMode, val: TaintedString): seq[string] =
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return @[]
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proc writeHeaderRecord(
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writer: var JsonWriter, header: BlockHeader)
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{.raises: [IOError, Defect].} =
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let
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dataRecord = HeaderRecord(
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header: rlp.encode(header).to0xHex(),
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number: header.blockNumber.truncate(uint64))
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headerHash = to0xHex(rlpHash(header).data)
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writer.writeField(headerHash, dataRecord)
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proc writeBlockRecord(
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writer: var JsonWriter, blck: Block)
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{.raises: [IOError, Defect].} =
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let
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dataRecord = BlockRecord(
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header: rlp.encode(blck.header).to0xHex(),
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body: encode(blck.body).to0xHex(),
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receipts: encode(blck.receipts).to0xHex(),
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number: blck.header.blockNumber.truncate(uint64))
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headerHash = to0xHex(rlpHash(blck.header).data)
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writer.writeField(headerHash, dataRecord)
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proc downloadHeader(client: RpcClient, i: uint64): BlockHeader =
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let blockNumber = u256(i)
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try:
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let jsonHeader = requestHeader(blockNumber, some(client))
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parseBlockHeader(jsonHeader)
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except CatchableError as e:
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fatal "Error while requesting BlockHeader", error = e.msg, number = i
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quit 1
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proc downloadBlock(i: uint64, client: RpcClient): Block =
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let num = u256(i)
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try:
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return requestBlock(num, flags = {DownloadReceipts}, client = some(client))
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except CatchableError as e:
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fatal "Error while requesting Block", error = e.msg, number = i
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quit 1
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proc createAndOpenFile(dataDir: string, fileName: string): OutputStreamHandle =
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# Creates directory and file, if file already exists
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# program is aborted with info to user, to avoid losing data
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let fileName: string =
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if not fileName.endsWith(".json"):
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fileName & ".json"
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else:
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fileName
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let filePath = dataDir / fileName
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if isFile(filePath):
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fatal "File under provided path already exists and would be overwritten",
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path = filePath
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quit 1
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let res = createPath(dataDir)
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if res.isErr():
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fatal "Error occurred while creating directory",
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error = ioErrorMsg(res.error)
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quit 1
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try:
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return fileOutput(filePath)
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except IOError as e:
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fatal "Error occurred while opening the file", error = e.msg
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quit 1
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proc writeHeadersToJson(config: ExporterConf, client: RpcClient) =
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let fh = createAndOpenFile(string config.dataDir, string config.fileName)
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try:
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var writer = JsonWriter[DefaultFlavor].init(fh.s, pretty = true)
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writer.beginRecord()
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for i in config.startBlock..config.endBlock:
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let blck = client.downloadHeader(i)
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writer.writeHeaderRecord(blck)
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if ((i - config.startBlock) mod 8192) == 0 and i != config.startBlock:
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info "Downloaded 8192 new block headers", currentHeader = i
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writer.endRecord()
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info "File successfully written", path = config.dataDir / config.fileName
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except IOError as e:
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fatal "Error occured while writing to file", error = e.msg
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quit 1
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finally:
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try:
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fh.close()
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except IOError as e:
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fatal "Error occured while closing file", error = e.msg
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quit 1
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proc writeBlocksToJson(config: ExporterConf, client: RpcClient) =
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let fh = createAndOpenFile(string config.dataDir, string config.fileName)
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try:
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var writer = JsonWriter[DefaultFlavor].init(fh.s, pretty = true)
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writer.beginRecord()
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for i in config.startBlock..config.endBlock:
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let blck = downloadBlock(i, client)
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writer.writeBlockRecord(blck)
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if ((i - config.startBlock) mod 8192) == 0 and i != config.startBlock:
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info "Downloaded 8192 new blocks", currentBlock = i
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writer.endRecord()
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info "File successfully written", path = config.dataDir / config.fileName
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except IOError as e:
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fatal "Error occured while writing to file", error = e.msg
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quit 1
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finally:
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try:
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fh.close()
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except IOError as e:
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fatal "Error occured while closing file", error = e.msg
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quit 1
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proc writeBlocksToDb(config: ExporterConf, client: RpcClient) =
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let db = SeedDb.new(distinctBase(config.dataDir), config.fileName)
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defer:
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db.close()
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for i in config.startBlock..config.endBlock:
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let
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blck = downloadBlock(i, client)
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blockHash = blck.header.blockHash()
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contentKeyType = BlockKey(blockHash: blockHash)
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headerKey = encode(ContentKey(
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contentType: blockHeader, blockHeaderKey: contentKeyType))
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bodyKey = encode(ContentKey(
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contentType: blockBody, blockBodyKey: contentKeyType))
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receiptsKey = encode(
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ContentKey(contentType: receipts, receiptsKey: contentKeyType))
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db.put(headerKey.toContentId(), headerKey.asSeq(), rlp.encode(blck.header))
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# No need to seed empty lists into database
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if len(blck.body.transactions) > 0 or len(blck.body.uncles) > 0:
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let body = encode(blck.body)
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db.put(bodyKey.toContentId(), bodyKey.asSeq(), body)
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if len(blck.receipts) > 0:
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let receipts = encode(blck.receipts)
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db.put(receiptsKey.toContentId(), receiptsKey.asSeq(), receipts)
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info "Data successfuly written to db"
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proc exportBlocks(config: ExporterConf, client: RpcClient) =
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case config.storageMode
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of Json:
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if config.headersOnly:
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writeHeadersToJson(config, client)
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else:
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writeBlocksToJson(config, client)
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of Db:
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if config.headersOnly:
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fatal "Db mode not available for headers only"
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quit 1
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else:
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writeBlocksToDb(config, client)
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when isMainModule:
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{.pop.}
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let config = ExporterConf.load()
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{.push raises: [Defect].}
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setLogLevel(config.logLevel)
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let dataDir = config.dataDir.string
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if not isDir(dataDir):
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let res = createPath(dataDir)
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if res.isErr():
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fatal "Error occurred while creating data directory",
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dir = dataDir, error = ioErrorMsg(res.error)
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quit 1
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var client: RpcClient
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try:
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let c = newRpcWebSocketClient()
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# TODO: Hardcoded to the default geth ws address. This should become
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# a configurable cli option
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waitFor c.connect("ws://127.0.0.1:8546")
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client = c
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except CatchableError as e:
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fatal "Error while connecting to data provider", error = e.msg
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quit 1
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case config.cmd
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of ExporterCmd.exportBlockData:
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if (config.endBlock < config.startBlock):
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fatal "Initial block number should be smaller than end block number",
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startBlock = config.startBlock,
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endBlock = config.endBlock
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quit 1
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try:
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exportBlocks(config, client)
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finally:
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waitFor client.close()
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of ExporterCmd.exportEpochHeaders:
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proc exportEpochHeaders(file: string, epoch: uint64): Result[void, string] =
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# Downloading headers from JSON RPC endpoint
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info "Requesting epoch headers", epoch
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var headers: seq[BlockHeader]
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for j in 0..<epochSize.uint64:
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debug "Requesting block", number = j
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let header = client.downloadHeader(epoch*epochSize + j)
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headers.add(header)
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let fh = ? openFile(file, {OpenFlags.Write, OpenFlags.Create}).mapErr(toString)
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defer: discard closeFile(fh)
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info "Writing headers to file", file
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for header in headers:
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discard ? fh.appendRecord(ExecutionBlockHeaderRecord, rlp.encode(header))
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ok()
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# TODO: Could make the JSON-RPC requests concurrent per epoch.
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# Batching would also be nice but our json-rpc does not support that:
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# https://geth.ethereum.org/docs/rpc/batch
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for i in config.startEpoch..config.endEpoch:
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let file = dataDir / &"mainnet-headers-epoch-{i.uint64:05}.e2s"
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if isFile(file):
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notice "Skipping epoch headers, file already exists", file
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else:
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let res = exportEpochHeaders(file, i)
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if res.isErr():
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error "Failed exporting epoch headers", file, error = res.error
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waitFor client.close()
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of ExporterCmd.verifyEpochHeaders:
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proc verifyEpochHeaders(file: string, epoch: uint64): Result[void, string] =
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let fh = ? openFile(file, {OpenFlags.Read}).mapErr(toString)
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defer: discard closeFile(fh)
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var data: seq[byte]
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while true:
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let header = readRecord(fh, data).valueOr:
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break
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if header.typ == ExecutionBlockHeaderRecord:
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let
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blockHeader =
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try:
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rlp.decode(data, BlockHeader)
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except RlpError as e:
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return err("Invalid block header: " & e.msg)
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headerHash = to0xHex(rlpHash(blockHeader).data)
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debug "Header decoded successfully",
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hash = headerHash, blockNumber = blockHeader.blockNumber
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else:
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warn "Skipping record, not a block header", typ = toHex(header.typ)
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ok()
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for i in config.startEpochVerify..config.endEpochVerify:
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let file = dataDir / &"mainnet-headers-epoch-{i.uint64:05}.e2s"
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let res = verifyEpochHeaders(file, i)
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if res.isErr():
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error "Failed verifying epoch headers", file, error = res.error
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else:
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info "Successfully decoded epoch headers", file
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of ExporterCmd.exportAccumulatorData:
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# Lets first check if the accumulator file already exists before starting
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# to build it.
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let accumulatorFile = dataDir / config.accumulatorFileName
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if isFile(accumulatorFile):
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notice "Not building accumulator, file already exists",
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file = accumulatorFile
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quit 1
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# Lets verify if the necessary files exists before starting to build the
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# accumulator.
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for i in 0..<preMergeEpochs:
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let file = dataDir / &"mainnet-headers-epoch-{i.uint64:05}.e2s"
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if not isFile(file):
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fatal "Required epoch headers file does not exist", file
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quit 1
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proc buildAccumulator(dataDir: string, writeEpochAccumulators = false):
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Result[FinishedAccumulator, string] =
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var accumulator: Accumulator
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for i in 0..<preMergeEpochs:
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let file =
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try: dataDir / &"mainnet-headers-epoch-{i.uint64:05}.e2s"
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except ValueError as e: raiseAssert e.msg
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let fh = ? openFile(file, {OpenFlags.Read}).mapErr(toString)
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defer: discard closeFile(fh)
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var data: seq[byte]
|
|
var count = 0'u64
|
|
while true:
|
|
let header = readRecord(fh, data).valueOr:
|
|
break
|
|
|
|
if header.typ == ExecutionBlockHeaderRecord:
|
|
let blockHeader =
|
|
try:
|
|
rlp.decode(data, BlockHeader)
|
|
except RlpError as e:
|
|
return err("Invalid block header in " & file & ": " & e.msg)
|
|
|
|
# Quick sanity check
|
|
if blockHeader.blockNumber.truncate(uint64) != i*epochSize + count:
|
|
fatal "Incorrect block headers in file", file = file,
|
|
blockNumber = blockHeader.blockNumber,
|
|
expectedBlockNumber = i*epochSize + count
|
|
quit 1
|
|
|
|
updateAccumulator(accumulator, blockHeader)
|
|
|
|
# Note: writing away of epoch accumulators occurs 1 iteration before
|
|
# updating the epoch accumulator, as the latter happens when passed
|
|
# a header for the next epoch (or on finishing the epoch).
|
|
if writeEpochAccumulators:
|
|
if accumulator.currentEpoch.len() == epochSize or
|
|
blockHeader.blockNumber.truncate(uint64) == mergeBlockNumber - 1:
|
|
let file =
|
|
try: dataDir / &"mainnet-epoch-accumulator-{i.uint64:05}.ssz"
|
|
except ValueError as e: raiseAssert e.msg
|
|
let res = io2.writeFile(file, SSZ.encode(accumulator.currentEpoch))
|
|
if res.isErr():
|
|
error "Failed writing epoch accumulator to file",
|
|
file, error = res.error
|
|
else:
|
|
notice "Succesfully wrote epoch accumulator to file", file
|
|
|
|
if count == epochSize - 1:
|
|
info "Updated an epoch", epoch = i
|
|
count.inc()
|
|
|
|
if blockHeader.blockNumber.truncate(uint64) == mergeBlockNumber - 1:
|
|
let finishedAccumulator = finishAccumulator(accumulator)
|
|
info "Updated last epoch, finished building master accumulator",
|
|
epoch = i
|
|
return ok(finishedAccumulator)
|
|
else:
|
|
warn "Skipping record, not a block header", typ = toHex(header.typ)
|
|
|
|
err("Not enough headers provided to finish the accumulator")
|
|
|
|
let accumulatorRes = buildAccumulator(dataDir, config.writeEpochAccumulators)
|
|
if accumulatorRes.isErr():
|
|
fatal "Could not build accumulator", error = accumulatorRes.error
|
|
quit 1
|
|
let accumulator = accumulatorRes.get()
|
|
|
|
let res = io2.writeFile(accumulatorFile, SSZ.encode(accumulator))
|
|
if res.isErr():
|
|
error "Failed writing accumulator to file",
|
|
file = accumulatorFile, error = res.error
|
|
quit 1
|
|
else:
|
|
notice "Succesfully wrote master accumulator to file",
|
|
file = accumulatorFile
|
|
|
|
of ExporterCmd.printAccumulatorData:
|
|
let file = dataDir / config.accumulatorFileNamePrint
|
|
|
|
let res = readAccumulator(file)
|
|
if res.isErr():
|
|
fatal "Failed reading accumulator from file", error = res.error, file
|
|
quit 1
|
|
|
|
let
|
|
accumulator = res.get()
|
|
accumulatorRoot = hash_tree_root(accumulator)
|
|
|
|
info "Accumulator decoded successfully",
|
|
root = accumulatorRoot
|
|
|
|
echo "Master Accumulator:"
|
|
echo "-------------------"
|
|
echo &"Root: {accumulatorRoot}"
|
|
echo ""
|
|
echo "Historical Epochs:"
|
|
echo "------------------"
|
|
echo "Epoch Root"
|
|
for i, root in accumulator.historicalEpochs:
|
|
echo &"{i.uint64:05} 0x{root.toHex()}"
|
|
|
|
of ExporterCmd.exportHeaderRange:
|
|
let
|
|
startBlockNumber = config.startBlockNumber
|
|
endBlockNumber = config.endBlockNumber
|
|
|
|
if (endBlockNumber < startBlockNumber):
|
|
fatal "Start block number should be smaller than end block number",
|
|
startBlockNumber, endBlockNumber
|
|
quit 1
|
|
|
|
proc exportHeaders(
|
|
file: string, startBlockNumber, endBlockNumber: uint64):
|
|
Result[void, string] =
|
|
# Downloading headers from JSON RPC endpoint
|
|
info "Requesting headers", startBlockNumber, endBlockNumber
|
|
var headers: seq[BlockHeader]
|
|
for j in startBlockNumber..endBlockNumber:
|
|
debug "Requesting block", number = j
|
|
let header = client.downloadHeader(j)
|
|
headers.add(header)
|
|
|
|
let fh = ? openFile(
|
|
file, {OpenFlags.Write, OpenFlags.Create}).mapErr(toString)
|
|
defer: discard closeFile(fh)
|
|
|
|
info "Writing headers to file", file
|
|
for header in headers:
|
|
discard ? fh.appendRecord(ExecutionBlockHeaderRecord, rlp.encode(header))
|
|
|
|
ok()
|
|
|
|
let file =
|
|
try: dataDir / &"mainnet-headers-{startBlockNumber:05}-{endBlockNumber:05}.e2s"
|
|
except ValueError as e: raiseAssert e.msg
|
|
|
|
let res = exportHeaders(file, startBlockNumber, endBlockNumber)
|
|
if res.isErr():
|
|
fatal "Failed exporting headers", error = res.error
|
|
quit 1
|