147 lines
4.9 KiB
Nim
147 lines
4.9 KiB
Nim
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import
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std/typetraits,
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test_env,
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eth/rlp
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type
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ExecutableData* = object
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parentHash* : Hash256
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feeRecipient* : EthAddress
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stateRoot* : Hash256
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receiptsRoot* : Hash256
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logsBloom* : BloomFilter
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prevRandao* : Hash256
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number* : uint64
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gasLimit* : GasInt
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gasUsed* : GasInt
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timestamp* : EthTime
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extraData* : Blob
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baseFeePerGas*: UInt256
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blockHash* : Hash256
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transactions* : seq[Transaction]
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CustomPayload* = object
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parentHash* : Option[Hash256]
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feeRecipient* : Option[EthAddress]
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stateRoot* : Option[Hash256]
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receiptsRoot* : Option[Hash256]
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logsBloom* : Option[BloomFilter]
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prevRandao* : Option[Hash256]
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number* : Option[uint64]
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gasLimit* : Option[GasInt]
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gasUsed* : Option[GasInt]
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timestamp* : Option[EthTime]
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extraData* : Option[Blob]
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baseFeePerGas*: Option[UInt256]
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blockHash* : Option[Hash256]
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transactions* : Option[seq[Transaction]]
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proc customizePayload*(basePayload: ExecutableData, customData: CustomPayload): ExecutionPayloadV1 =
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let txs = if customData.transactions.isSome:
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customData.transactions.get
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else:
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basePayload.transactions
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let txRoot = calcTxRoot(txs)
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var customHeader = EthBlockHeader(
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parentHash: basePayload.parentHash,
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ommersHash: EMPTY_UNCLE_HASH,
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coinbase: basePayload.feeRecipient,
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stateRoot: basePayload.stateRoot,
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txRoot: txRoot,
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receiptRoot: basePayload.receiptsRoot,
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bloom: basePayload.logsBloom,
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difficulty: 0.u256,
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blockNumber: basePayload.number.toBlockNumber,
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gasLimit: basePayload.gasLimit,
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gasUsed: basePayload.gasUsed,
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timestamp: basePayload.timestamp,
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extraData: basePayload.extraData,
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mixDigest: basePayload.prevRandao,
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nonce: default(BlockNonce),
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fee: some(basePayload.baseFeePerGas)
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)
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# Overwrite custom information
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if customData.parentHash.isSome:
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customHeader.parentHash = customData.parentHash.get
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if customData.feeRecipient.isSome:
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customHeader.coinbase = customData.feeRecipient.get
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if customData.stateRoot.isSome:
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customHeader.stateRoot = customData.stateRoot.get
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if customData.receiptsRoot.isSome:
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customHeader.receiptRoot = customData.receiptsRoot.get
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if customData.logsBloom.isSome:
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customHeader.bloom = customData.logsBloom.get
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if customData.prevRandao.isSome:
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customHeader.mixDigest = customData.prevRandao.get
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if customData.number.isSome:
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customHeader.blockNumber = toBlockNumber(customData.number.get)
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if customData.gasLimit.isSome:
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customHeader.gasLimit = customData.gasLimit.get
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if customData.gasUsed.isSome:
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customHeader.gasUsed = customData.gasUsed.get
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if customData.timestamp.isSome:
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customHeader.timestamp = customData.timestamp.get
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if customData.extraData.isSome:
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customHeader.extraData = customData.extraData.get
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if customData.baseFeePerGas.isSome:
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customHeader.baseFee = customData.baseFeePerGas.get
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# Return the new payload
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result = ExecutionPayloadV1(
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parentHash: Web3BlockHash customHeader.parentHash.data,
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feeRecipient: Web3Address customHeader.coinbase,
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stateRoot: Web3BlockHash customHeader.stateRoot.data,
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receiptsRoot: Web3BlockHash customHeader.receiptRoot.data,
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logsBloom: Web3Bloom customHeader.bloom,
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prevRandao: Web3PrevRandao customHeader.mixDigest.data,
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blockNumber: Web3Quantity customHeader.blockNumber.truncate(uint64),
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gasLimit: Web3Quantity customHeader.gasLimit,
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gasUsed: Web3Quantity customHeader.gasUsed,
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timestamp: Web3Quantity toUnix(customHeader.timestamp),
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extraData: Web3ExtraData customHeader.extraData,
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baseFeePerGas: customHeader.baseFee,
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blockHash: Web3BlockHash customHeader.blockHash.data
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)
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for tx in txs:
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let txData = rlp.encode(tx)
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result.transactions.add TypedTransaction(txData)
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proc hash256*(h: Web3BlockHash): Hash256 =
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Hash256(data: distinctBase h)
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proc toExecutableData*(payload: ExecutionPayloadV1): ExecutableData =
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result = ExecutableData(
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parentHash : hash256(payload.parentHash),
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feeRecipient : distinctBase payload.feeRecipient,
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stateRoot : hash256(payload.stateRoot),
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receiptsRoot : hash256(payload.receiptsRoot),
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logsBloom : distinctBase payload.logsBloom,
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prevRandao : hash256(payload.prevRandao),
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number : uint64 payload.blockNumber,
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gasLimit : GasInt payload.gasLimit,
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gasUsed : GasInt payload.gasUsed,
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timestamp : fromUnix(int64 payload.timestamp),
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extraData : distinctBase payload.extraData,
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baseFeePerGas : payload.baseFeePerGas,
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blockHash : hash256(payload.blockHash)
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)
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for data in payload.transactions:
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let tx = rlp.decode(distinctBase data, Transaction)
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result.transactions.add tx
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