jangko b8c55229e7
implement graphql.Query.account
although this is not part of EIP 1767
but the hive test cases derived from besu
test cases contains this.
we add this now to pass more test hive.graphql cases
2021-05-05 19:18:35 +07:00

1101 lines
36 KiB
Nim

# nim-graphql
# Copyright (c) 2021 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.
import
std/[strutils, times],
stew/[results, byteutils], stint,
eth/[common, rlp], chronos,
graphql, graphql/graphql as context,
graphql/common/types, graphql/httpserver,
../db/[db_chain, state_db], ../errors, ../utils,
../transaction, ../rpc/rpc_utils, ../vm_state, ../config,
../vm_computation, ../vm_state_transactions,
../transaction/call_evm
from eth/p2p import EthereumNode
export httpserver
type
EthTypes = enum
ethAccount = "Account"
ethLog = "Log"
ethTransaction = "Transaction"
ethBlock = "Block"
ethCallResult = "CallResult"
ethSyncState = "SyncState"
ethPending = "Pending"
ethQuery = "Query"
ethMutation = "Mutation"
HeaderNode = ref object of Node
header: BlockHeader
AccountNode = ref object of Node
address: EthAddress
account: Account
db: ReadOnlyStateDB
TxNode = ref object of Node
tx: Transaction
index: int
blockNumber: BlockNumber
receipt: Receipt
gasUsed: GasInt
LogNode = ref object of Node
log: Log
index: int
tx: TxNode
GraphqlContextRef = ref GraphqlContextObj
GraphqlContextObj = object of Graphql
ids: array[EthTypes, Name]
chainDB: BaseChainDB
ethNode: EthereumNode
proc toHash(n: Node): Hash256 =
result.data = hexToByteArray[32](n.stringVal)
proc toBlockNumber(n: Node): BlockNumber =
result = parse(n.intVal, UInt256, radix = 10)
proc headerNode(ctx: GraphqlContextRef, header: BlockHeader): Node =
HeaderNode(
kind: nkMap,
typeName: ctx.ids[ethBlock],
pos: Pos(),
header: header
)
proc accountNode(ctx: GraphqlContextRef, acc: Account, address: EthAddress, db: ReadOnlyStateDB): Node =
AccountNode(
kind: nkMap,
typeName: ctx.ids[ethAccount],
pos: Pos(),
account: acc,
address: address,
db: db
)
proc txNode(ctx: GraphqlContextRef, tx: Transaction, index: int, blockNumber: BlockNumber): Node =
TxNode(
kind: nkMap,
typeName: ctx.ids[ethTransaction],
pos: Pos(),
tx: tx,
index: index,
blockNumber: blockNumber
)
proc logNode(ctx: GraphqlContextRef, log: Log, index: int, tx: TxNode): Node =
LogNode(
kind: nkMap,
typeName: ctx.ids[ethLog],
pos: Pos(),
log: log,
index: index,
tx: tx
)
proc getAccountDb(chainDB: BaseChainDB, header: BlockHeader): ReadOnlyStateDB =
## Retrieves the account db from canonical head
## we don't use accounst_cache here because it's only read operations
let ac = newAccountStateDB(chainDB.db, header.stateRoot, chainDB.pruneTrie)
ReadOnlyStateDB(ac)
proc getBlockByNumber(ctx: GraphqlContextRef, number: Node): RespResult =
try:
ok(headerNode(ctx, getBlockHeader(ctx.chainDB, toBlockNumber(number))))
except CatchableError as e:
err(e.msg)
proc getBlockByNumber(ctx: GraphqlContextRef, number: BlockNumber): RespResult =
try:
ok(headerNode(ctx, getBlockHeader(ctx.chainDB, number)))
except CatchableError as e:
err(e.msg)
proc getBlockByHash(ctx: GraphqlContextRef, hash: Node): RespResult =
try:
ok(headerNode(ctx, getBlockHeader(ctx.chainDB, toHash(hash))))
except CatchableError as e:
err(e.msg)
proc getBlockByHash(ctx: GraphqlContextRef, hash: Hash256): RespResult =
try:
ok(headerNode(ctx, getBlockHeader(ctx.chainDB, hash)))
except CatchableError as e:
err(e.msg)
proc getLatestBlock(ctx: GraphqlContextRef): RespResult =
try:
ok(headerNode(ctx, getCanonicalHead(ctx.chainDB)))
except CatchableError as e:
err("can't get latest block: " & e.msg)
proc getTxCount(ctx: GraphqlContextRef, txRoot: Hash256): RespResult =
try:
ok(resp(getTransactionCount(ctx.chainDB, txRoot)))
except CatchableError as e:
err("can't get txcount: " & e.msg)
except Exception as em:
err("can't get txcount: " & em.msg)
proc longNode(val: uint64 | int64): RespResult =
ok(Node(kind: nkInt, intVal: $val, pos: Pos()))
proc longNode(val: UInt256): RespResult =
ok(Node(kind: nkInt, intVal: val.toString, pos: Pos()))
proc stripLeadingZeros(x: string): string =
strip(x, leading = true, trailing = false, chars = {'0'})
proc bigIntNode(val: UInt256): RespResult =
let hex = stripLeadingZeros(val.toHex)
ok(Node(kind: nkString, stringVal: "0x" & hex, pos: Pos()))
proc bigIntNode(x: uint64 | int64): RespResult =
# stdlib toHex is not suitable for hive
const
HexChars = "0123456789abcdef"
var
n = cast[uint64](x)
r: array[2*sizeof(uint64), char]
i = 0
while n > 0:
r[i] = HexChars[int(n and 0xF)]
n = n shr 4
inc i
var hex = newString(i+2)
hex[0] = '0'
hex[1] = 'x'
while i > 0:
hex[hex.len-i] = r[i-1]
dec i
ok(Node(kind: nkString, stringVal: hex, pos: Pos()))
proc byte32Node(val: UInt256): RespResult =
ok(Node(kind: nkString, stringVal: "0x" & val.dumpHex, pos: Pos()))
proc resp(hash: Hash256): RespResult =
ok(resp("0x" & hash.data.toHex))
proc resp(data: openArray[byte]): RespResult =
ok(resp("0x" & data.toHex))
proc getTotalDifficulty(ctx: GraphqlContextRef, blockHash: Hash256): RespResult =
try:
bigIntNode(getScore(ctx.chainDB, blockHash))
except CatchableError as e:
err("can't get total difficulty: " & e.msg)
proc getOmmerCount(ctx: GraphqlContextRef, ommersHash: Hash256): RespResult =
try:
ok(resp(getUnclesCount(ctx.chainDB, ommersHash)))
except CatchableError as e:
err("can't get ommers count: " & e.msg)
except Exception as em:
err("can't get ommers count: " & em.msg)
proc getOmmers(ctx: GraphqlContextRef, ommersHash: Hash256): RespResult =
try:
let uncles = getUncles(ctx.chainDB, ommersHash)
if uncles.len == 0:
return ok(respNull())
var list = respList()
for n in uncles:
list.add headerNode(ctx, n)
ok(list)
except CatchableError as e:
err("can't get ommers: " & e.msg)
proc getOmmerAt(ctx: GraphqlContextRef, ommersHash: Hash256, index: int): RespResult =
try:
let uncles = getUncles(ctx.chainDB, ommersHash)
if uncles.len == 0:
return ok(respNull())
if index < 0 or index >= uncles.len:
return ok(respNull())
ok(headerNode(ctx, uncles[index]))
except CatchableError as e:
err("can't get ommer: " & e.msg)
proc getTxs(ctx: GraphqlContextRef, header: BlockHeader): RespResult =
try:
let txCount = getTransactionCount(ctx.chainDB, header.txRoot)
if txCount == 0:
return ok(respNull())
var list = respList()
var index = 0
for n in getBlockTransactionData(ctx.chainDB, header.txRoot):
let tx = rlp.decode(n, Transaction)
list.add txNode(ctx, tx, index, header.blockNumber)
inc index
index = 0
var prevUsed = 0.GasInt
for r in getReceipts(ctx.chainDB, header.receiptRoot):
let tx = TxNode(list.sons[index])
tx.receipt = r
tx.gasUsed = r.cumulativeGasUsed - prevUsed
prevUsed = r.cumulativeGasUsed
inc index
ok(list)
except CatchableError as e:
err("can't get transactions: " & e.msg)
except Exception as em:
err("can't get transactions: " & em.msg)
proc getTxAt(ctx: GraphqlContextRef, header: BlockHeader, index: int): RespResult =
try:
var tx: Transaction
if getTransaction(ctx.chainDB, header.txRoot, index, tx):
let txn = txNode(ctx, tx, index, header.blockNumber)
var i = 0
var prevUsed = 0.GasInt
for r in getReceipts(ctx.chainDB, header.receiptRoot):
if i == index:
let tx = TxNode(txn)
tx.receipt = r
tx.gasUsed = r.cumulativeGasUsed - prevUsed
prevUsed = r.cumulativeGasUsed
inc i
ok(txn)
else:
ok(respNull())
except CatchableError as e:
err("can't get transaction by index '$1': $2" % [$index, e.msg])
except Exception as em:
err("can't get transaction by index '$1': $2" % [$index, em.msg])
proc getTxByHash(ctx: GraphqlContextRef, hash: Hash256): RespResult =
try:
let (blockNumber, index) = getTransactionKey(ctx.chainDB, hash)
let header = getBlockHeader(ctx.chainDB, blockNumber)
getTxAt(ctx, header, index)
except CatchableError as e:
err("can't get transaction by hash '$1': $2" % [hash.data.toHex, e.msg])
except Exception as em:
err("can't get transaction by hash '$1': $2" % [hash.data.toHex, em.msg])
proc accountNode(ctx: GraphqlContextRef, header: BlockHeader, address: EthAddress): RespResult =
let db = getAccountDb(ctx.chainDB, header)
if not db.accountExists(address):
return ok(respNull())
let acc = db.getAccount(address)
ok(accountNode(ctx, acc, address, db))
proc parseU64(node: Node): uint64 =
for c in node.intVal:
result = result * 10 + uint64(c.int - '0'.int)
{.pragma: apiPragma, cdecl, gcsafe, raises: [Defect, CatchableError], locks:0.}
{.push hint[XDeclaredButNotUsed]: off.}
proc validateHex(x: Node, minLen = 0): NodeResult =
if x.stringVal.len < 2:
return err("hex is too short")
if x.stringVal.len != 2 + minLen * 2 and minLen != 0:
return err("expect hex with len '$1', got '$2'" % [$(2 * minLen + 2), $x.stringVal.len])
if x.stringVal.len mod 2 != 0:
return err("hex must have even number of nibbles")
if x.stringVal[0] != '0' or x.stringVal[1] != 'x':
return err("hex should be prefixed by '0x'")
for i in 2..<x.stringVal.len:
if x.stringVal[i] notin HexDigits:
return err("invalid chars in hex")
ok(x)
proc validateFixedLenHex(x: Node, minLen: int, kind: string): NodeResult =
if x.stringVal.len < 2:
return err(kind & " hex is too short")
var prefixLen = 0
if x.stringVal[0] == '0' and x.stringVal[1] == 'x':
prefixLen = 2
let expectedLen = minLen * 2 + prefixLen
if x.stringVal.len < expectedLen:
return err("$1 len is too short: expect $2 got $3" %
[kind, $expectedLen, $x.stringVal.len])
for i in prefixLen..<x.stringVal.len:
if x.stringVal[i] notin HexDigits:
return err("invalid chars in $1 hex" % [kind])
ok(x)
proc scalarBytes32(ctx: GraphqlRef, typeNode, node: Node): NodeResult {.cdecl, gcsafe, nosideEffect.} =
## Bytes32 is a 32 byte binary string,
## represented as 0x-prefixed hexadecimal.
if node.kind != nkString:
return err("expect hex string, but got '$1'" % [$node.kind])
validateFixedLenHex(node, 32, "Bytes32")
proc scalarAddress(ctx: GraphqlRef, typeNode, node: Node): NodeResult {.cdecl, gcsafe, nosideEffect.} =
## Address is a 20 byte Ethereum address,
## represented as 0x-prefixed hexadecimal.
if node.kind != nkString:
return err("expect hex string, but got '$1'" % [$node.kind])
validateFixedLenHex(node, 20, "Address")
proc scalarBytes(ctx: GraphqlRef, typeNode, node: Node): NodeResult {.cdecl, gcsafe, nosideEffect.} =
## Bytes is an arbitrary length binary string,
## represented as 0x-prefixed hexadecimal.
## An empty byte string is represented as '0x'.
## Byte strings must have an even number of hexadecimal nybbles.
if node.kind != nkString:
return err("expect hex string, but got '$1'" % [$node.kind])
validateHex(node)
proc scalarBigInt(ctx: GraphqlRef, typeNode, node: Node): NodeResult {.cdecl, gcsafe, nosideEffect.} =
## BigInt is a large integer. Input is accepted as
## either a JSON number or as a string.
## Strings may be either decimal or 0x-prefixed hexadecimal.
## Output values are all 0x-prefixed hexadecimal.
try:
if node.kind == nkInt:
# convert it into hex nkString node
let val = parse(node.intVal, UInt256, radix = 10)
ok(Node(kind: nkString, stringVal: "0x" & val.toHex, pos: node.pos))
elif node.kind == nkString:
if node.stringVal.len > 2 and node.stringVal[1] == 'x':
if node.stringVal[0] != '0':
return err("Big Int hex malformed")
if node.stringVal.len > 66:
# 256 bits = 32 bytes = 64 hex nibbles
# 64 hex nibbles + '0x' prefix = 66 bytes
return err("Big Int hex should not exceed 66 bytes")
for i in 2..<node.stringVal.len:
if node.stringVal[i] notin HexDigits:
return err("invalid chars in BigInt hex")
ok(node)
elif HexDigits in node.stringVal:
if node.stringVal.len > 64:
return err("Big Int hex should not exceed 64 bytes")
for i in 0..<node.stringVal.len:
if node.stringVal[i] notin HexDigits:
return err("invalid chars in BigInt hex")
ok(node)
else:
# convert it into hex nkString node
let val = parse(node.stringVal, UInt256, radix = 10)
node.stringVal = "0x" & val.toHex
ok(node)
else:
return err("expect hex/dec string or int, but got '$1'" % [$node.kind])
except CatchableError as e:
err("scalar BigInt error: " & e.msg)
proc scalarLong(ctx: GraphqlRef, typeNode, node: Node): NodeResult {.cdecl, gcsafe, nosideEffect.} =
## Long is a 64 bit unsigned integer.
const maxU64 = uint64.high.u256
try:
case node.kind
of nkString:
if node.stringVal.len > 2 and node.stringVal[1] == 'x':
let val = parse(node.stringVal, UInt256, radix = 16)
if val > maxU64:
return err("long value overflow")
ok(Node(kind: nkInt, pos: node.pos, intVal: $val))
else:
let val = parse(node.stringVal, UInt256, radix = 10)
if val > maxU64:
return err("long value overflow")
ok(Node(kind: nkInt, pos: node.pos, intVal: node.stringVal))
of nkInt:
let val = parse(node.intVal, UInt256, radix = 10)
if val > maxU64:
return err("long value overflow")
ok(node)
else:
err("expect int, but got '$1'" % [$node.kind])
except CatchableError as e:
err("scalar Long error: " & e.msg)
proc accountAddress(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let acc = AccountNode(parent)
resp(acc.address)
proc accountBalance(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let acc = AccountNode(parent)
bigIntNode(acc.account.balance)
proc accountTxCount(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let acc = AccountNode(parent)
longNode(acc.account.nonce)
proc accountCode(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let acc = AccountNode(parent)
let code = acc.db.getCode(acc.address)
resp(code)
proc accountStorage(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let acc = AccountNode(parent)
let slot = parse(params[0].val.stringVal, UInt256, radix = 16)
let (val, _) = acc.db.getStorage(acc.address, slot)
byte32Node(val)
const accountProcs = {
"address": accountAddress,
"balance": accountBalance,
"transactionCount": accountTxCount,
"code": accountCode,
"storage": accountStorage
}
proc logIndex(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let log = LogNode(parent)
ok(resp(log.index))
proc logAccount(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
# TODO: with block param
let ctx = GraphqlContextRef(ud)
let log = LogNode(parent)
let hres = ctx.getBlockByNumber(log.tx.blockNumber)
if hres.isErr:
return hres
let h = HeaderNode(hres.get())
ctx.accountNode(h.header, log.log.address)
proc logTopics(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let log = LogNode(parent)
var list = respList()
for n in log.log.topics:
list.add resp("0x" & n.toHex)
ok(list)
proc logData(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let log = LogNode(parent)
resp(log.log.data)
proc logTransaction(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let log = LogNode(parent)
ok(cast[Node](log.tx))
const logProcs = {
"account": logAccount,
"index": logIndex,
"topics": logTopics,
"data": logData,
"transaction": logTransaction
}
proc txHash(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let
tx = TxNode(parent)
encodedTx = rlp.encode(tx.tx)
txHash = keccakHash(encodedTx)
resp(txHash)
proc txNonce(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let tx = TxNode(parent)
longNode(tx.tx.accountNonce)
proc txIndex(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let tx = TxNode(parent)
ok(resp(tx.index))
proc txFrom(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
# TODO: with block param
let ctx = GraphqlContextRef(ud)
let tx = TxNode(parent)
var sender: EthAddress
if not getSender(tx.tx, sender):
return ok(respNull())
let hres = ctx.getBlockByNumber(tx.blockNumber)
if hres.isErr:
return hres
let h = HeaderNode(hres.get())
ctx.accountNode(h.header, sender)
proc txTo(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
# TODO: with block param
let ctx = GraphqlContextRef(ud)
let tx = TxNode(parent)
if tx.tx.isContractCreation:
return ok(respNull())
let hres = ctx.getBlockByNumber(tx.blockNumber)
if hres.isErr:
return hres
let h = HeaderNode(hres.get())
ctx.accountNode(h.header, tx.tx.to)
proc txValue(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let tx = TxNode(parent)
bigIntNode(tx.tx.value)
proc txGasPrice(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let tx = TxNode(parent)
bigIntNode(tx.tx.gasPrice)
proc txGas(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let tx = TxNode(parent)
longNode(tx.tx.gasLimit)
proc txInputData(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let tx = TxNode(parent)
resp(tx.tx.payload)
proc txBlock(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let tx = TxNode(parent)
ctx.getBlockByNumber(tx.blockNumber)
proc txStatus(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let tx = TxNode(parent)
if tx.receipt.hasStatus:
longNode(tx.receipt.status().uint64)
else:
ok(respNull())
proc txGasUsed(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let tx = TxNode(parent)
longNode(tx.gasUsed)
proc txCumulativeGasUsed(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let tx = TxNode(parent)
longNode(tx.receipt.cumulativeGasUsed)
proc txCreatedContract(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let tx = TxNode(parent)
var sender: EthAddress
if not getSender(tx.tx, sender):
return err("can't calculate sender")
if not tx.tx.isContractCreation:
return ok(respNull())
let hres = getBlockByNumber(ctx, tx.blockNumber)
if hres.isErr:
return hres
let h = HeaderNode(hres.get())
let db = getAccountDb(ctx.chainDB, h.header)
let creationNonce = db.getNonce(sender)
let contractAddress = generateAddress(sender, creationNonce)
ctx.accountNode(h.header, contractAddress)
proc txLogs(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let tx = TxNode(parent)
var list = respList()
for i, n in tx.receipt.logs:
list.add logNode(ctx, n, i, tx)
ok(list)
const txProcs = {
"from": txFrom,
"hash": txHash,
"nonce": txNonce,
"index": txIndex,
"to": txTo,
"value": txValue,
"gasPrice": txGasPrice,
"gas": txGas,
"inputData": txInputData,
"block": txBlock,
"status": txStatus,
"gasUsed": txGasUsed,
"cumulativeGasUsed": txCumulativeGasUsed,
"createdContract": txCreatedContract,
"logs": txLogs
}
proc blockNumberImpl(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let h = HeaderNode(parent)
longNode(h.header.blockNumber)
proc blockHashImpl(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let h = HeaderNode(parent)
let hash = blockHash(h.header)
resp(hash)
proc blockParent(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let h = HeaderNode(parent)
getBlockByHash(ctx, h.header.parentHash)
proc blockNonce(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let h = HeaderNode(parent)
ok(resp("0x" & h.header.nonce.toHex))
proc blockTransactionsRoot(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let h = HeaderNode(parent)
resp(h.header.txRoot)
proc blockTransactionCount(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let h = HeaderNode(parent)
ctx.getTxCount(h.header.txRoot)
proc blockStateRoot(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let h = HeaderNode(parent)
resp(h.header.stateRoot)
proc blockReceiptsRoot(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let h = HeaderNode(parent)
resp(h.header.receiptRoot)
proc blockMiner(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let h = HeaderNode(parent)
ctx.accountNode(h.header, h.header.coinbase)
proc blockExtraData(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let h = HeaderNode(parent)
resp(h.header.extraData)
proc blockGasLimit(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let h = HeaderNode(parent)
longNode(h.header.gasLimit)
proc blockGasUsed(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let h = HeaderNode(parent)
longNode(h.header.gasUsed)
proc blockTimestamp(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let h = HeaderNode(parent)
bigIntNode(h.header.timestamp.toUnix.uint64)
proc blockLogsBloom(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let h = HeaderNode(parent)
resp(h.header.bloom)
proc blockMixHash(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let h = HeaderNode(parent)
resp(h.header.mixDigest)
proc blockDifficulty(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let h = HeaderNode(parent)
bigIntNode(h.header.difficulty)
proc blockTotalDifficulty(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let h = HeaderNode(parent)
let hash = blockHash(h.header)
getTotalDifficulty(ctx, hash)
proc blockOmmerCount(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let h = HeaderNode(parent)
getOmmerCount(ctx, h.header.ommersHash)
proc blockOmmers(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let h = HeaderNode(parent)
getOmmers(ctx, h.header.ommersHash)
proc blockOmmerAt(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let h = HeaderNode(parent)
let index = parseU64(params[0].val)
getOmmerAt(ctx, h.header.ommersHash, index.int)
proc blockOmmerHash(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let h = HeaderNode(parent)
resp(h.header.ommersHash)
proc blockTransactions(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let h = HeaderNode(parent)
getTxs(ctx, h.header)
proc blockTransactionAt(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let h = HeaderNode(parent)
let index = parseU64(params[0].val)
getTxAt(ctx, h.header, index.int)
proc blockLogs(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
# TODO: stub, missing impl
err("not implemented")
proc blockAccount(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let h = HeaderNode(parent)
let address = hexToByteArray[20](params[0].val.stringVal)
ctx.accountNode(h.header, address)
proc toCallData(n: Node): (RpcCallData, bool) =
# phew, probably need to use macro here :)
var cd: RpcCallData
var gasLimit = false
if n[0][1].kind != nkEmpty:
cd.source = hextoByteArray[20](n[0][1].stringVal)
if n[1][1].kind != nkEmpty:
cd.to = hextoByteArray[20](n[1][1].stringVal)
else:
cd.contractCreation = true
if n[2][1].kind != nkEmpty:
cd.gas = parseU64(n[2][1]).GasInt
gasLimit = true
else:
# TODO: this is globalGasCap in geth
cd.gas = GasInt(high(uint64) div 2)
if n[3][1].kind != nkEmpty:
let gasPrice = parse(n[3][1].stringVal, UInt256, radix = 16)
cd.gasPrice = gasPrice.truncate(GasInt)
if n[4][1].kind != nkEmpty:
cd.value = parse(n[4][1].stringVal, UInt256, radix = 16)
if n[5][1].kind != nkEmpty:
cd.data = hexToSeqByte(n[5][1].stringVal)
(cd, gasLimit)
proc makeCall(ctx: GraphqlContextRef, callData: RpcCallData,
header: BlockHeader, chainDB: BaseChainDB): RespResult =
let (outputHex, gasUsed, isError) = rpcMakeCall(callData, header, chainDB)
var map = respMap(ctx.ids[ethCallResult])
map["data"] = resp("0x" & outputHex)
map["gasUsed"] = longNode(gasUsed).get()
map["status"] = longNode(if isError: 0 else: 1).get()
ok(map)
proc blockCall(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let h = HeaderNode(parent)
let param = params[0].val
try:
let (callData, gasLimit) = toCallData(param)
ctx.makeCall(callData, h.header, ctx.chainDB)
except Exception as em:
err("call error: " & em.msg)
proc blockEstimateGas(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let h = HeaderNode(parent)
let param = params[0].val
try:
let (callData, gasLimit) = toCallData(param)
let gasUsed = rpcEstimateGas(callData, h.header, ctx.chainDB, gasLimit)
longNode(gasUsed)
except Exception as em:
err("estimateGas error: " & em.msg)
const blockProcs = {
"parent": blockParent,
"number": blockNumberImpl,
"hash": blockHashImpl,
"nonce": blockNonce,
"transactionsRoot": blockTransactionsRoot,
"transactionCount": blockTransactionCount,
"stateRoot": blockStateRoot,
"receiptsRoot": blockReceiptsRoot,
"miner": blockMiner,
"extraData": blockExtraData,
"gasLimit": blockGasLimit,
"gasUsed": blockGasUsed,
"timestamp": blockTimestamp,
"logsBloom": blockLogsBloom,
"mixHash": blockMixHash,
"difficulty": blockDifficulty,
"totalDifficulty": blockTotalDifficulty,
"ommerCount": blockOmmerCount,
"ommers": blockOmmers,
"ommerAt": blockOmmerAt,
"ommerHash": blockOmmerHash,
"transactions": blockTransactions,
"transactionAt": blockTransactionAt,
"logs": blockLogs,
"account": blockAccount,
"call": blockCall,
"estimateGas": blockEstimateGas
}
proc callResultData(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
ok(parent.map[0].val)
proc callResultGasUsed(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
ok(parent.map[1].val)
proc callResultStatus(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
ok(parent.map[2].val)
const callResultProcs = {
"data": callResultData,
"gasUsed": callResultGasUsed,
"status": callResultStatus
}
proc syncStateStartingBlock(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
longNode(ctx.chainDB.startingBlock)
proc syncStateCurrentBlock(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
longNode(ctx.chainDB.currentBlock)
proc syncStateHighestBlock(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
longNode(ctx.chainDB.highestBlock)
proc syncStatePulledStates(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
# TODO: what is this ?
let ctx = GraphqlContextRef(ud)
ok(respNull())
proc syncStateKnownStates(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
# TODO: what is this ?
let ctx = GraphqlContextRef(ud)
ok(respNull())
const syncStateProcs = {
"startingBlock": syncStateStartingBlock,
"currentBlock": syncStateCurrentBlock,
"highestBlock": syncStateHighestBlock,
"pulledStates": syncStatePulledStates,
"knownStates": syncStateKnownStates
}
proc pendingTransactionCount(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
# TODO: stub, missing impl
err("not implemented")
proc pendingTransactions(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
# TODO: stub, missing impl
err("not implemented")
proc pendingAccount(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
# TODO: stub, missing impl
err("not implemented")
proc pendingCall(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
# TODO: stub, missing impl
err("not implemented")
proc pendingEstimateGas(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
# TODO: stub, missing impl
err("not implemented")
const pendingProcs = {
"transactionCount": pendingTransactionCount,
"transactions": pendingTransactions,
"account": pendingAccount,
"call": pendingCall,
"estimateGas": pendingEstimateGas
}
proc pickBlockNumber(ctx: GraphqlContextRef, number: Node): BlockNumber =
if number.kind == nkEmpty:
ctx.chainDB.highestBlock
else:
parseU64(number).toBlockNumber
proc queryAccount(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let address = hexToByteArray[20](params[0].val.stringVal)
let blockNumber = pickBlockNumber(ctx, params[1].val)
let hres = getBlockByNumber(ctx, blockNumber)
if hres.isErr:
return hres
let h = HeaderNode(hres.get())
accountNode(ctx, h.header, address)
proc queryBlock(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let number = params[0].val
let hash = params[1].val
if number.kind != nkEmpty and hash.kind != nkEmpty:
err("only one param allowed, number or hash, not both")
elif number.kind == nkInt:
getBlockByNumber(ctx, number)
elif hash.kind == nkString:
getBlockByHash(ctx, hash)
else:
getLatestBlock(ctx)
proc queryBlocks(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let fromNumber = parseU64(params[0].val).toBlockNumber
let to = params[1].val
let toNumber = pickBlockNumber(ctx, to)
if fromNumber > toNumber:
return err("from($1) is bigger than to($2)" % [fromNumber.toString, toNumber.toString])
# TODO: what is the maximum number here?
if toNumber - fromNumber > 32.toBlockNumber:
return err("can't get more than 32 blocks at once")
var list = respList()
var number = fromNumber
while number <= toNumber:
let n = getBlockByNumber(ctx, number)
if n.isErr:
list.add respNull()
else:
list.add n.get()
number += 1.toBlockNumber
ok(list)
proc queryPending(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
# TODO: stub, missing impl
err("not implemented")
proc queryTransaction(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
let hash = toHash(params[0].val)
getTxByHash(ctx, hash)
proc queryLogs(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
# TODO: stub, missing impl
err("not implemented")
proc queryGasPrice(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
try:
bigIntNode(calculateMedianGasPrice(ctx.chainDB))
except Exception as em:
err("can't get gasPrice: " & em.msg)
proc queryProtocolVersion(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
for n in ctx.ethNode.capabilities:
if n.name == "eth":
return ok(resp(n.version))
err("can't get protocol version")
proc querySyncing(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
let ctx = GraphqlContextRef(ud)
ok(respMap(ctx.ids[ethSyncState]))
const queryProcs = {
"account": queryAccount,
"block": queryBlock,
"blocks": queryBlocks,
"pending": queryPending,
"transaction": queryTransaction,
"logs": queryLogs,
"gasPrice": queryGasPrice,
"protocolVersion": queryProtocolVersion,
"syncing": querySyncing
}
proc sendRawTransaction(ud: RootRef, params: Args, parent: Node): RespResult {.apiPragma.} =
# TODO: add tx validation and tx processing
# probably goes to tx pool
# if tx validation failed, the result will be null
let ctx = GraphqlContextRef(ud)
try:
let data = hexToSeqByte(params[0].val.stringVal)
let _ = rlp.decode(data, Transaction) # we want to know if it is a valid tx blob
let txHash = keccakHash(data)
resp(txHash)
except Exception as em:
return err("failed to process raw transaction")
const mutationProcs = {
"sendRawTransaction": sendRawTransaction
}
{.pop.}
const
ethSchema = staticRead("ethapi.ql")
proc initEthApi(ctx: GraphqlContextRef) =
ctx.customScalar("Bytes32", scalarBytes32)
ctx.customScalar("Address", scalarAddress)
ctx.customScalar("Bytes", scalarBytes)
ctx.customScalar("BigInt", scalarBigInt)
ctx.customScalar("Long", scalarLong)
for n in EthTypes:
let name = ctx.createName($n)
ctx.ids[n] = name
ctx.addResolvers(ctx, ctx.ids[ethAccount ], accountProcs)
ctx.addResolvers(ctx, ctx.ids[ethLog ], logProcs)
ctx.addResolvers(ctx, ctx.ids[ethTransaction], txProcs)
ctx.addResolvers(ctx, ctx.ids[ethBlock ], blockProcs)
ctx.addResolvers(ctx, ctx.ids[ethCallResult ], callResultProcs)
ctx.addResolvers(ctx, ctx.ids[ethSyncState ], syncStateProcs)
ctx.addResolvers(ctx, ctx.ids[ethPending ], pendingProcs)
ctx.addResolvers(ctx, ctx.ids[ethQuery ], queryProcs)
ctx.addResolvers(ctx, ctx.ids[ethMutation ], mutationProcs)
let res = ctx.parseSchema(ethSchema)
if res.isErr:
echo res.error
quit(QuitFailure)
proc setupGraphqlContext*(chainDB: BaseChainDB, ethNode: EthereumNode): GraphqlContextRef =
let ctx = GraphqlContextRef(
chainDB: chainDB,
ethNode: ethNode
)
graphql.init(ctx)
ctx.initEthApi()
ctx
proc setupGraphqlHttpServer*(conf: NimbusConfiguration,
chainDB: BaseChainDB, ethNode: EthereumNode): GraphqlHttpServerRef =
let socketFlags = {ServerFlags.TcpNoDelay, ServerFlags.ReuseAddr}
let ctx = setupGraphqlContext(chainDB, ethNode)
let sres = GraphqlHttpServerRef.new(ctx, conf.graphql.address, socketFlags = socketFlags)
if sres.isErr():
echo sres.error
quit(QuitFailure)
sres.get()