307 lines
11 KiB
Nim
307 lines
11 KiB
Nim
# Nimbus
|
|
# Copyright (c) 2018 Status Research & Development GmbH
|
|
# Licensed under either of
|
|
# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
|
|
# * MIT license ([LICENSE-MIT](LICENSE-MIT))
|
|
# at your option.
|
|
# This file may not be copied, modified, or distributed except according to
|
|
# those terms.
|
|
|
|
{.push raises: [].}
|
|
|
|
import hexstrings, eth/[common, keys], stew/byteutils,
|
|
../db/core_db, strutils, algorithm, options, json,
|
|
../constants, stint, rpc_types,
|
|
../utils/utils, ../transaction,
|
|
../transaction/call_evm
|
|
|
|
const
|
|
defaultTag = "latest"
|
|
|
|
func toAddress*(value: EthAddressStr): EthAddress
|
|
{.gcsafe, raises: [ValueError].} =
|
|
hexToPaddedByteArray[20](value.string)
|
|
|
|
func toHash*(value: array[32, byte]): Hash256 =
|
|
result.data = value
|
|
|
|
func toHash*(value: EthHashStr): Hash256
|
|
{.gcsafe, raises: [ValueError].} =
|
|
result = hexToPaddedByteArray[32](value.string).toHash
|
|
|
|
func hexToInt*(s: string, T: typedesc[SomeInteger]): T
|
|
{.gcsafe, raises: [ValueError].} =
|
|
var i = 0
|
|
if s[i] == '0' and (s[i+1] in {'x', 'X'}): inc(i, 2)
|
|
if s.len - i > sizeof(T) * 2:
|
|
raise newException(ValueError, "input hex too big for destination int")
|
|
while i < s.len:
|
|
result = result shl 4 or readHexChar(s[i]).T
|
|
inc(i)
|
|
|
|
proc headerFromTag*(chain: CoreDbRef, blockTag: string): BlockHeader
|
|
{.gcsafe, raises: [CatchableError].} =
|
|
let tag = blockTag.toLowerAscii
|
|
case tag
|
|
of "latest": result = chain.getCanonicalHead()
|
|
of "earliest": result = chain.getBlockHeader(GENESIS_BLOCK_NUMBER)
|
|
of "safe": result = chain.safeHeader()
|
|
of "finalized": result = chain.finalizedHeader()
|
|
of "pending":
|
|
#TODO: Implement get pending block
|
|
raise newException(ValueError, "Pending tag not yet implemented")
|
|
else:
|
|
# Raises are trapped and wrapped in JSON when returned to the user.
|
|
tag.validateHexQuantity
|
|
let blockNum = stint.fromHex(UInt256, tag)
|
|
result = chain.getBlockHeader(blockNum.toBlockNumber)
|
|
|
|
proc headerFromTag*(chain: CoreDbRef, blockTag: Option[string]): BlockHeader
|
|
{.gcsafe, raises: [CatchableError].} =
|
|
if blockTag.isSome():
|
|
return chain.headerFromTag(blockTag.unsafeGet())
|
|
else:
|
|
return chain.headerFromTag(defaultTag)
|
|
|
|
proc calculateMedianGasPrice*(chain: CoreDbRef): GasInt
|
|
{.gcsafe, raises: [CatchableError].} =
|
|
var prices = newSeqOfCap[GasInt](64)
|
|
let header = chain.getCanonicalHead()
|
|
for encodedTx in chain.getBlockTransactionData(header.txRoot):
|
|
let tx = decodeTx(encodedTx)
|
|
prices.add(tx.gasPrice)
|
|
|
|
if prices.len > 0:
|
|
sort(prices)
|
|
let middle = prices.len div 2
|
|
if prices.len mod 2 == 0:
|
|
# prevent overflow
|
|
let price = prices[middle].uint64 + prices[middle - 1].uint64
|
|
result = (price div 2).GasInt
|
|
else:
|
|
result = prices[middle]
|
|
|
|
proc unsignedTx*(tx: TxSend, chain: CoreDbRef, defaultNonce: AccountNonce): Transaction
|
|
{.gcsafe, raises: [CatchableError].} =
|
|
if tx.to.isSome:
|
|
result.to = some(toAddress(tx.to.get))
|
|
|
|
if tx.gas.isSome:
|
|
result.gasLimit = hexToInt(tx.gas.get().string, GasInt)
|
|
else:
|
|
result.gasLimit = 90000.GasInt
|
|
|
|
if tx.gasPrice.isSome:
|
|
result.gasPrice = hexToInt(tx.gasPrice.get().string, GasInt)
|
|
else:
|
|
result.gasPrice = calculateMedianGasPrice(chain)
|
|
|
|
if tx.value.isSome:
|
|
result.value = UInt256.fromHex(tx.value.get().string)
|
|
else:
|
|
result.value = 0.u256
|
|
|
|
if tx.nonce.isSome:
|
|
result.nonce = hexToInt(tx.nonce.get().string, AccountNonce)
|
|
else:
|
|
result.nonce = defaultNonce
|
|
|
|
result.payload = hexToSeqByte(tx.data.string)
|
|
|
|
template optionalAddress(src, dst: untyped) =
|
|
if src.isSome:
|
|
dst = some(toAddress(src.get))
|
|
|
|
template optionalGas(src, dst: untyped) =
|
|
if src.isSome:
|
|
dst = some(hexToInt(src.get.string, GasInt))
|
|
|
|
template optionalU256(src, dst: untyped) =
|
|
if src.isSome:
|
|
dst = some(UInt256.fromHex(src.get.string))
|
|
|
|
template optionalBytes(src, dst: untyped) =
|
|
if src.isSome:
|
|
dst = hexToSeqByte(src.get.string)
|
|
|
|
proc callData*(call: EthCall): RpcCallData
|
|
{.gcsafe, raises: [ValueError].} =
|
|
optionalAddress(call.source, result.source)
|
|
optionalAddress(call.to, result.to)
|
|
optionalGas(call.gas, result.gasLimit)
|
|
optionalGas(call.gasPrice, result.gasPrice)
|
|
optionalGas(call.maxFeePerGas, result.maxFee)
|
|
optionalGas(call.maxPriorityFeePerGas, result.maxPriorityFee)
|
|
optionalU256(call.value, result.value)
|
|
optionalBytes(call.data, result.data)
|
|
|
|
proc toWd(wd: Withdrawal): WithdrawalObject =
|
|
WithdrawalObject(
|
|
index: encodeQuantity(wd.index),
|
|
validatorIndex: encodeQuantity(wd.validatorIndex),
|
|
address: wd.address,
|
|
amount: encodeQuantity(wd.amount),
|
|
)
|
|
|
|
proc toWdList(list: openArray[Withdrawal]): seq[WithdrawalObject] =
|
|
result = newSeqOfCap[WithdrawalObject](list.len)
|
|
for x in list:
|
|
result.add toWd(x)
|
|
|
|
proc toHashList(list: openArray[StorageKey]): seq[Hash256] =
|
|
result = newSeqOfCap[Hash256](list.len)
|
|
for x in list:
|
|
result.add Hash256(data: x)
|
|
|
|
proc toAccessTuple(ac: AccessPair): AccessTuple =
|
|
AccessTuple(
|
|
address: ac.address,
|
|
storageKeys: toHashList(ac.storageKeys)
|
|
)
|
|
|
|
proc toAccessTupleList(list: openArray[AccessPair]): seq[AccessTuple] =
|
|
result = newSeqOfCap[AccessTuple](list.len)
|
|
for x in list:
|
|
result.add toAccessTuple(x)
|
|
|
|
proc populateTransactionObject*(tx: Transaction,
|
|
header: Option[BlockHeader] = none(BlockHeader),
|
|
txIndex: Option[int] = none(int)): TransactionObject
|
|
{.gcsafe, raises: [ValidationError].} =
|
|
result.`type` = encodeQuantity(tx.txType.uint64)
|
|
if header.isSome:
|
|
result.blockHash = some(header.get().hash)
|
|
result.blockNumber = some(encodeQuantity(header.get().blockNumber))
|
|
result.`from` = tx.getSender()
|
|
result.gas = encodeQuantity(tx.gasLimit.uint64)
|
|
result.gasPrice = encodeQuantity(tx.gasPrice.uint64)
|
|
result.hash = tx.rlpHash
|
|
result.input = tx.payload
|
|
result.nonce = encodeQuantity(tx.nonce.uint64)
|
|
result.to = some(tx.destination)
|
|
if txIndex.isSome:
|
|
result.transactionIndex = some(encodeQuantity(txIndex.get().uint64))
|
|
result.value = encodeQuantity(tx.value)
|
|
result.v = encodeQuantity(tx.V.uint)
|
|
result.r = encodeQuantity(tx.R)
|
|
result.s = encodeQuantity(tx.S)
|
|
result.maxFeePerGas = encodeQuantity(tx.maxFee.uint64)
|
|
result.maxPriorityFeePerGas = encodeQuantity(tx.maxPriorityFee.uint64)
|
|
|
|
if tx.txType >= TxEip2930:
|
|
result.chainId = some(encodeQuantity(tx.chainId.uint64))
|
|
result.accessList = some(toAccessTupleList(tx.accessList))
|
|
|
|
if tx.txType >= TxEIP4844:
|
|
result.maxFeePerBlobGas = some(encodeQuantity(tx.maxFeePerBlobGas))
|
|
result.versionedHashes = some(tx.versionedHashes)
|
|
|
|
proc populateBlockObject*(header: BlockHeader, chain: CoreDbRef, fullTx: bool, isUncle = false): BlockObject
|
|
{.gcsafe, raises: [CatchableError].} =
|
|
let blockHash = header.blockHash
|
|
|
|
result.number = some(encodeQuantity(header.blockNumber))
|
|
result.hash = some(blockHash)
|
|
result.parentHash = header.parentHash
|
|
result.nonce = some(hexDataStr(header.nonce))
|
|
result.sha3Uncles = header.ommersHash
|
|
result.logsBloom = FixedBytes[256] header.bloom
|
|
result.transactionsRoot = header.txRoot
|
|
result.stateRoot = header.stateRoot
|
|
result.receiptsRoot = header.receiptRoot
|
|
result.miner = header.coinbase
|
|
result.difficulty = encodeQuantity(header.difficulty)
|
|
result.extraData = hexDataStr(header.extraData)
|
|
result.mixHash = header.mixDigest
|
|
|
|
# discard sizeof(seq[byte]) of extraData and use actual length
|
|
let size = sizeof(BlockHeader) - sizeof(Blob) + header.extraData.len
|
|
result.size = encodeQuantity(size.uint)
|
|
|
|
result.gasLimit = encodeQuantity(header.gasLimit.uint64)
|
|
result.gasUsed = encodeQuantity(header.gasUsed.uint64)
|
|
result.timestamp = encodeQuantity(header.timestamp.uint64)
|
|
result.baseFeePerGas = if header.fee.isSome:
|
|
some(encodeQuantity(header.baseFee))
|
|
else:
|
|
none(HexQuantityStr)
|
|
if not isUncle:
|
|
result.totalDifficulty = encodeQuantity(chain.getScore(blockHash))
|
|
result.uncles = chain.getUncleHashes(header)
|
|
|
|
if fullTx:
|
|
var i = 0
|
|
for tx in chain.getBlockTransactions(header):
|
|
result.transactions.add %(populateTransactionObject(tx, some(header), some(i)))
|
|
inc i
|
|
else:
|
|
for x in chain.getBlockTransactionHashes(header):
|
|
result.transactions.add %(x)
|
|
|
|
if header.withdrawalsRoot.isSome:
|
|
result.withdrawalsRoot = header.withdrawalsRoot
|
|
result.withdrawals = some(toWdList(chain.getWithdrawals(header.withdrawalsRoot.get)))
|
|
|
|
if header.blobGasUsed.isSome:
|
|
result.blobGasUsed = some(encodeQuantity(header.blobGasUsed.get))
|
|
|
|
if header.excessBlobGas.isSome:
|
|
result.excessBlobGas = some(encodeQuantity(header.excessBlobGas.get))
|
|
|
|
result.parentBeaconBlockRoot = header.parentBeaconBlockRoot
|
|
|
|
proc populateReceipt*(receipt: Receipt, gasUsed: GasInt, tx: Transaction,
|
|
txIndex: int, header: BlockHeader): ReceiptObject
|
|
{.gcsafe, raises: [ValidationError].} =
|
|
result.transactionHash = tx.rlpHash
|
|
result.transactionIndex = encodeQuantity(txIndex.uint)
|
|
result.blockHash = header.hash
|
|
result.blockNumber = encodeQuantity(header.blockNumber)
|
|
result.`from` = tx.getSender()
|
|
result.to = some(tx.destination)
|
|
result.cumulativeGasUsed = encodeQuantity(receipt.cumulativeGasUsed.uint64)
|
|
result.gasUsed = encodeQuantity(gasUsed.uint64)
|
|
result.`type` = encodeQuantity(uint(receipt.receiptType.ord))
|
|
|
|
if tx.contractCreation:
|
|
var sender: EthAddress
|
|
if tx.getSender(sender):
|
|
let contractAddress = generateAddress(sender, tx.nonce)
|
|
result.contractAddress = some(contractAddress)
|
|
|
|
for log in receipt.logs:
|
|
# TODO: Work everywhere with either `Hash256` as topic or `array[32, byte]`
|
|
var topics: seq[Hash256]
|
|
for topic in log.topics:
|
|
topics.add(Hash256(data: topic))
|
|
|
|
let logObject = FilterLog(
|
|
removed: false,
|
|
# TODO: Not sure what is difference between logIndex and TxIndex and how
|
|
# to calculate it.
|
|
logIndex: some(result.transactionIndex),
|
|
# Note: the next 4 fields cause a lot of duplication of data, but the spec
|
|
# is what it is. Not sure if other clients actually add this.
|
|
transactionIndex: some(result.transactionIndex),
|
|
transactionHash: some(result.transactionHash),
|
|
blockHash: some(result.blockHash),
|
|
blockNumber: some(result.blockNumber),
|
|
# The actual fields
|
|
address: log.address,
|
|
data: log.data,
|
|
topics: topics
|
|
)
|
|
result.logs.add(logObject)
|
|
|
|
result.logsBloom = FixedBytes[256] receipt.bloom
|
|
|
|
# post-transaction stateroot (pre Byzantium).
|
|
if receipt.hasStateRoot:
|
|
result.root = some(receipt.stateRoot)
|
|
else:
|
|
# 1 = success, 0 = failure.
|
|
result.status = some(encodeQuantity(receipt.status.uint64))
|
|
|
|
let normTx = eip1559TxNormalization(tx, header.baseFee.truncate(GasInt))
|
|
result.effectiveGasPrice = encodeQuantity(normTx.gasPrice.uint64)
|