chaintool/chainlib
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Add missing encoding lib file

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This commit is contained in:
nolash 2021-02-15 18:59:55 +01:00
parent 6e44b903ed
commit b4531c22cc
Signed by: lash
GPG Key ID: 21D2E7BB88C2A746
2 changed files with 24 additions and 5 deletions
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20
chainlib/eth/encoding.py Normal file
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@ -0,0 +1,20 @@
from eth_abi import (
encode_single as __encode_single,
decode_single as __decode_single,
)
def abi_encode(signature, *args):
return __encode_single(signature, *args)
def abi_encode_hex(signature, *args):
return __encode_single(signature, *args).hex()
def abi_decode(signature, *args):
return __decode_single(signature, *args)
def abi_decode_hex(signature, *args):
return __decode_single(signature, *args).hex()

9
chainlib/eth/erc20.py
View File

@ -1,7 +1,6 @@
# third-party imports # third-party imports
import sha3 import sha3
from hexathon import add_0x from hexathon import add_0x
from eth_abi import encode_single
from crypto_dev_signer.eth.transaction import EIP155Transaction from crypto_dev_signer.eth.transaction import EIP155Transaction
# local imports # local imports
@ -12,6 +11,7 @@ from chainlib.hash import (
from .constant import ZERO_ADDRESS from .constant import ZERO_ADDRESS
from .rpc import jsonrpc_template from .rpc import jsonrpc_template
from .tx import TxFactory from .tx import TxFactory
from .encoding import abi_encode
# TODO: move to cic-contracts # TODO: move to cic-contracts
@ -23,12 +23,11 @@ erc20_transfer_signature = keccak256_string_to_hex('transfer(address,uint256)')[
class ERC20TxFactory(TxFactory): class ERC20TxFactory(TxFactory):
def erc20_balance(self, contract_address, address, sender_address=ZERO_ADDRESS): def erc20_balance(self, contract_address, address, sender_address=ZERO_ADDRESS):
o = jsonrpc_template() o = jsonrpc_template()
o['method'] = 'eth_call' o['method'] = 'eth_call'
data = erc20_balance_signature data = erc20_balance_signature
data += encode_single('address', address).hex() data += abi_encode('address', address).hex()
data = add_0x(data) data = add_0x(data)
tx = self.template(sender_address, contract_address) tx = self.template(sender_address, contract_address)
tx = self.set_code(tx, data) tx = self.set_code(tx, data)
@ -50,8 +49,8 @@ class ERC20TxFactory(TxFactory):
def erc20_transfer(self, contract_address, sender_address, recipient_address, value): def erc20_transfer(self, contract_address, sender_address, recipient_address, value):
data = erc20_transfer_signature data = erc20_transfer_signature
data += encode_single('address', recipient_address).hex() data += abi_encode('address', recipient_address).hex()
data += encode_single('uint256', value).hex() data += abi_encode('uint256', value).hex()
data = add_0x(data) data = add_0x(data)
tx = self.template(sender_address, contract_address) tx = self.template(sender_address, contract_address)
tx = self.set_code(tx, data) tx = self.set_code(tx, data)