import json, strutils, times, options, os, eth/[rlp, common], httputils, nimcrypto, chronicles, stint, byteutils import ../nimbus/[transaction, rpc/hexstrings] func hexToInt*(s: string, T: typedesc[SomeInteger]): T = 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 prefixHex*(x: Hash256): string = "0x" & toLowerAscii($x) proc prefixHex*(x: int64 | uint64 | byte | int): string = encodeQuantity(x.uint64).toLowerAscii proc prefixHex*(x: openArray[byte]): string = "0x" & toHex(x, true) proc prefixHex*(x: UInt256): string = "0x" & stint.toHex(x) proc prefixHex*(x: string): string = "0x" & toLowerAscii(x) type SomeData = EthAddress | BloomFilter | BlockNonce proc fromJson(n: JsonNode, name: string, x: var SomeData) = hexToByteArray(n[name].getStr(), x) assert(x.prefixHex == toLowerAscii(n[name].getStr())) proc fromJson(n: JsonNode, name: string, x: var Hash256) = hexToByteArray(n[name].getStr(), x.data) assert(x.prefixHex == toLowerAscii(n[name].getStr())) proc fromJson(n: JsonNode, name: string, x: var Blob) = x = hexToSeqByte(n[name].getStr()) assert(x.prefixHex == toLowerAscii(n[name].getStr())) proc fromJson(n: JsonNode, name: string, x: var UInt256) = x = UInt256.fromHex(n[name].getStr()) assert(x.prefixHex == toLowerAscii(n[name].getStr())) proc fromJson(n: JsonNode, name: string, x: var SomeInteger) = x = hexToInt(n[name].getStr(), type(x)) assert(x.prefixHex == toLowerAscii(n[name].getStr())) proc fromJson(n: JsonNode, name: string, x: var EthTime) = x = initTime(hexToInt(n[name].getStr(), int64), 0) assert(x.toUnix.prefixHex == toLowerAscii(n[name].getStr())) proc parseBlockHeader*(n: JsonNode): BlockHeader = n.fromJson "parentHash", result.parentHash n.fromJson "sha3Uncles", result.ommersHash n.fromJson "miner", result.coinbase n.fromJson "stateRoot", result.stateRoot n.fromJson "transactionsRoot", result.txRoot n.fromJson "receiptsRoot", result.receiptRoot n.fromJson "logsBloom", result.bloom n.fromJson "difficulty", result.difficulty n.fromJson "number", result.blockNumber n.fromJson "gasLimit", result.gasLimit n.fromJson "gasUsed", result.gasUsed n.fromJson "timestamp", result.timestamp n.fromJson "extraData", result.extraData n.fromJson "mixHash", result.mixDigest n.fromJson "nonce", result.nonce proc parseTransaction*(n: JsonNode): Transaction = n.fromJson "nonce", result.accountNonce n.fromJson "gasPrice", result.gasPrice n.fromJson "gas", result.gasLimit result.isContractCreation = n["to"].kind == JNull if not result.isContractCreation: n.fromJson "to", result.to n.fromJson "value", result.value n.fromJson "input", result.payload n.fromJson "v", result.V n.fromJson "r", result.R n.fromJson "s", result.S var sender = result.getSender() assert sender.prefixHex == n["from"].getStr() assert n["hash"].getStr() == result.rlpHash().prefixHex proc parseLog(n: JsonNode): Log = n.fromJson "address", result.address n.fromJson "data", result.data let topics = n["topics"] result.topics = newSeqOfCap[Topic](n.len) var topicHash: Topic for tp in topics: hexToByteArray(tp.getStr(), topicHash) result.topics.add topicHash proc parseLogs(n: JsonNode): seq[Log] = if n.len > 0: result = newSeqOfCap[Log](n.len) for log in n: result.add parseLog(log) else: result = @[] proc parseReceipt*(n: JsonNode): Receipt = if n.hasKey("root"): var hash: Hash256 n.fromJson "root", hash result.stateRootOrStatus = hashOrStatus(hash) else: var status: int n.fromJson "status", status result.stateRootOrStatus = hashOrStatus(status == 1) n.fromJson "cumulativeGasUsed", result.cumulativeGasUsed n.fromJson "logsBloom", result.bloom result.logs = parseLogs(n["logs"]) proc headerHash*(n: JsonNode): Hash256 = n.fromJson "hash", result proc parseAccount*(n: JsonNode): Account = n.fromJson "nonce", result.nonce n.fromJson "balance", result.balance n.fromJson "storageRoot", result.storageRoot n.fromJson "codeHash", result.codeHash