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eth_getCode and helper func strToAddress

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This commit is contained in:
coffeepots 2018-08-14 18:22:31 +01:00
parent 25f8123c6f
commit ee15f4a995
1 changed files with 24 additions and 5 deletions
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29
nimbus/rpc/p2p.nim
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@ -9,7 +9,17 @@
import
nimcrypto, json_rpc/rpcserver, eth_p2p, hexstrings, strutils, stint,
../config, ../vm_state, ../constants, eth_trie/[memdb, types],
../db/[db_chain, state_db], eth_common, rpc_types, byteutils
../db/[db_chain, state_db], eth_common, rpc_types, byteutils,
ranges/typedranges
#[
Note:
* Hexstring types (HexQuantitySt, HexDataStr, EthAddressStr, EthHashStr)
are parsed to check format before the RPC blocks are executed and will
raise an exception if invalid.
]#
func strToAddress(value: string): EthAddress = hexToPaddedByteArray[20](value)
func headerFromTag(chain:BaseChainDB, blockTag: string): BlockHeader =
let tag = blockTag.toLowerAscii
@ -87,7 +97,7 @@ proc setupP2PRPC*(node: EthereumNode, rpcsrv: RpcServer) =
## Returns integer of the current balance in wei.
let
account_db = accountDbFromTag(quantityTag)
addrBytes = hexToPaddedByteArray[20](data.string)
addrBytes = strToAddress(data.string)
balance = account_db.get_balance(addrBytes)
result = balance.toInt
@ -101,12 +111,11 @@ proc setupP2PRPC*(node: EthereumNode, rpcsrv: RpcServer) =
## Returns: the value at this storage position.
let
account_db = accountDbFromTag(quantityTag)
addrBytes = hexToPaddedByteArray[20](data.string)
addrBytes = strToAddress(data.string)
storage = account_db.getStorage(addrBytes, quantity.u256)
if storage[1]:
result = ("0x" & storage[0].toHex).HexDataStr
rpcsrv.rpc("eth_getTransactionCount") do(data: EthAddressStr, quantityTag: string) -> int:
## Returns the number of transactions sent from an address.
##
@ -164,7 +173,17 @@ proc setupP2PRPC*(node: EthereumNode, rpcsrv: RpcServer) =
## data: address
## quantityTag: integer block number, or the string "latest", "earliest" or "pending", see the default block parameter.
## Returns the code from the given address.
discard
let
account_db = accountDbFromTag(quantityTag)
addrBytes = strToAddress(data.string)
storage = account_db.getCode(addrBytes)
var
idx = 2
res = newString(storage.len + 2)
res[0..1] = "0x"
for b in storage:
res[idx] = b.char
result = hexDataStr(res)
rpcsrv.rpc("eth_sign") do(data: EthAddressStr, message: HexDataStr) -> HexDataStr:
## The sign method calculates an Ethereum specific signature with: sign(keccak256("\x19Ethereum Signed Message:\n" + len(message) + message))).