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nimbus-eth1
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Fixes (eg eth_getTransactionCount) and helper funcs

This commit is contained in:
coffeepots 2018-08-16 18:25:17 +01:00
parent 3f2311be23
commit 8524c0b060
1 changed files with 24 additions and 19 deletions
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43
nimbus/rpc/p2p.nim
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@ -27,11 +27,17 @@ proc `%`*(value: Time): JsonNode =
func strToAddress(value: string): EthAddress = hexToPaddedByteArray[20](value)
func toHash(value: array[32, byte]): Hash256 {.inline.} =
result.data = value
func strToHash(value: string): Hash256 {.inline.} =
result = hexToPaddedByteArray[32](value).toHash
func headerFromTag(chain:BaseChainDB, blockTag: string): BlockHeader =
let tag = blockTag.toLowerAscii
case tag
of "latest": result = chain.getCanonicalHead()
of "earliest": result = chain.getCanonicalBlockHeaderByNumber(GENESIS_BLOCK_NUMBER)
of "earliest": result = chain.getBlockHeader(GENESIS_BLOCK_NUMBER)
of "pending":
#TODO: Implement get pending block
raise newException(ValueError, "Pending tag not yet implemented")
@ -39,13 +45,12 @@ func headerFromTag(chain:BaseChainDB, blockTag: string): BlockHeader =
# Raises are trapped and wrapped in JSON when returned to the user.
tag.validateHexQuantity
let blockNum = stint.fromHex(UInt256, tag)
result = chain.getCanonicalBlockHeaderByNumber(blockNum)
result = chain.getBlockHeader(blockNum)
proc setupP2PRPC*(node: EthereumNode, rpcsrv: RpcServer) =
template chain: untyped = BaseChainDB(node.chain) # TODO: Sensible casting
proc accountDbFromTag(tag: string, readOnly = true): AccountStateDb =
# Note: This is a read only account
let
header = chain.headerFromTag(tag)
vmState = newBaseVMState(header, chain)
@ -102,9 +107,9 @@ proc setupP2PRPC*(node: EthereumNode, rpcsrv: RpcServer) =
## quantityTag: integer block number, or the string "latest", "earliest" or "pending", see the default block parameter.
## Returns integer of the current balance in wei.
let
account_db = accountDbFromTag(quantityTag)
accountDb = accountDbFromTag(quantityTag)
addrBytes = strToAddress(data.string)
balance = account_db.get_balance(addrBytes)
balance = accountDb.get_balance(addrBytes)
result = balance.toInt
@ -116,30 +121,29 @@ proc setupP2PRPC*(node: EthereumNode, rpcsrv: RpcServer) =
## quantityTag: integer block number, or the string "latest", "earliest" or "pending", see the default block parameter.
## Returns: the value at this storage position.
let
account_db = accountDbFromTag(quantityTag)
accountDb = accountDbFromTag(quantityTag)
addrBytes = strToAddress(data.string)
storage = account_db.getStorage(addrBytes, quantity.u256)
storage = accountDb.getStorage(addrBytes, quantity.u256)
if storage[1]:
result = storage[0]
rpcsrv.rpc("eth_getTransactionCount") do(data: EthAddressStr, quantityTag: string) -> int:
rpcsrv.rpc("eth_getTransactionCount") do(data: EthAddressStr, quantityTag: string) -> UInt256:
## Returns the number of transactions sent from an address.
##
## data: address.
## quantityTag: integer block number, or the string "latest", "earliest" or "pending", see the default block parameter.
## Returns integer of the number of transactions send from this address.
let
header = chain.headerFromTag(quantityTag)
body = chain.getBlockBody(header.hash)
result = body.transactions.len
addrBytes = data.string.strToAddress()
accountDb = accountDbFromTag(quantityTag)
result = accountDb.getNonce(addrBytes)
rpcsrv.rpc("eth_getBlockTransactionCountByHash") do(data: HexDataStr) -> int:
## Returns the number of transactions in a block from a block matching the given block hash.
##
## data: hash of a block
## Returns integer of the number of transactions in this block.
var hashData: Hash256
hashData.data = hexToPaddedByteArray[32](data.string)
var hashData = strToHash(data.string)
let body = chain.getBlockBody(hashData)
result = body.transactions.len
@ -150,6 +154,7 @@ proc setupP2PRPC*(node: EthereumNode, rpcsrv: RpcServer) =
## Returns integer of the number of transactions in this block.
let
header = chain.headerFromTag(quantityTag)
accountDb = accountDbFromTag(quantityTag)
body = chain.getBlockBody(header.hash)
result = body.transactions.len
@ -158,8 +163,7 @@ proc setupP2PRPC*(node: EthereumNode, rpcsrv: RpcServer) =
##
## data: hash of a block.
## Returns integer of the number of uncles in this block.
var hashData: Hash256
hashData.data = hexToPaddedByteArray[32](data.string)
var hashData = strToHash(data.string)
let body = chain.getBlockBody(hashData)
result = body.uncles.len
@ -180,9 +184,9 @@ proc setupP2PRPC*(node: EthereumNode, rpcsrv: RpcServer) =
## quantityTag: integer block number, or the string "latest", "earliest" or "pending", see the default block parameter.
## Returns the code from the given address.
let
account_db = accountDbFromTag(quantityTag)
accountDb = accountDbFromTag(quantityTag)
addrBytes = strToAddress(data.string)
storage = account_db.getCode(addrBytes)
storage = accountDb.getCode(addrBytes)
# Easier to return the string manually here rather than expect ByteRange to be marshalled
result = byteutils.toHex(storage.toOpenArray).HexDataStr
@ -270,8 +274,9 @@ proc setupP2PRPC*(node: EthereumNode, rpcsrv: RpcServer) =
## fullTransactions: If true it returns the full transaction objects, if false only the hashes of the transactions.
## Returns BlockObject or nil when no block was found.
let
header = chain.getCanonicalHead()
body = chain.getBlockBody(header.hash)
h = data.string.strToHash
header = chain.getBlockHeader(h)
body = chain.getBlockBody(h)
populateBlockObject(header, body)
rpcsrv.rpc("eth_getBlockByNumber") do(quantityTag: string, fullTransactions: bool) -> BlockObject: