eth-address-index/python/eth_address_declarator/declarator.py
2023-03-24 08:55:59 +00:00

80 lines
2.0 KiB
Python

# Author: Louis Holbrook <dev@holbrook.no> 0826EDA1702D1E87C6E2875121D2E7BB88C2A746
# SPDX-License-Identifier: GPL-3.0-or-later
# File-version: 1
# Description: Python interface to abi and bin files for faucet contracts
# standard imports
import logging
import json
import os
import hashlib
# external imports
from hexathon import (
strip_0x,
add_0x,
)
from chainlib.eth.tx import (
TxFormat,
TxFactory,
)
from chainlib.eth.contract import (
ABIContractEncoder,
ABIContractType,
abi_decode_single,
)
from chainlib.eth.constant import ZERO_ADDRESS
# local imports
from eth_address_declarator import Declarator
logg = logging.getLogger(__name__)
moddir = os.path.dirname(__file__)
datadir = os.path.join(moddir, 'data')
def to_declarator_key(declarator_address_hex, declaration_address_hex):
h = hashlib.new('sha256')
h.update(bytes.fromhex(strip_0x(declaration_address_hex)))
h.update(bytes.fromhex(strip_0x(declarator_address_hex)))
return h.digest()
class AddressDeclarator(Declarator):
__abi = None
__bytecode = None
@staticmethod
def abi():
if AddressDeclarator.__abi == None:
f = open(os.path.join(datadir, 'AddressDeclarator.json'), 'r')
AddressDeclarator.__abi = json.load(f)
f.close()
return AddressDeclarator.__abi
@staticmethod
def bytecode():
if AddressDeclarator.__bytecode == None:
f = open(os.path.join(datadir, 'AddressDeclarator.bin'))
AddressDeclarator.__bytecode = f.read()
f.close()
return AddressDeclarator.__bytecode
@staticmethod
def gas(code=None):
return 2000000
def constructor(self, sender_address, description):
code = AddressDeclarator.bytecode()
enc = ABIContractEncoder()
enc.bytes32(description)
code += enc.get()
tx = self.template(sender_address, None, use_nonce=True)
tx = self.set_code(tx, code)
return self.build(tx)