cic-contracts/python/eth_writer/interface.py

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# external imports
from chainlib.eth.tx import TxFormat
from chainlib.eth.tx import TxFactory
from chainlib.jsonrpc import JSONRPCRequest
from chainlib.eth.constant import ZERO_ADDRESS
from chainlib.eth.contract import ABIContractEncoder
from chainlib.eth.contract import ABIContractType
from hexathon import add_0x
class EthWriter(TxFactory):
def __single_address_method(self, method, contract_address, sender_address, address, tx_format=TxFormat.JSONRPC):
enc = ABIContractEncoder()
enc.method(method)
enc.typ(ABIContractType.ADDRESS)
enc.address(address)
data = enc.get()
tx = self.template(sender_address, contract_address, use_nonce=True)
tx = self.set_code(tx, data)
tx = self.finalize(tx, tx_format)
return tx
def add_writer(self, contract_address, sender_address, address, tx_format=TxFormat.JSONRPC):
return self.__single_address_method('addWriter', contract_address, sender_address, address, tx_format)
def delete_writer(self, contract_address, sender_address, address, tx_format=TxFormat.JSONRPC):
return self.__single_address_method('deleteWriter', contract_address, sender_address, address, tx_format)
def is_writer(self, contract_address, address, sender_address=ZERO_ADDRESS, id_generator=None):
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] = 'eth_call'
enc = ABIContractEncoder()
enc.method('isWriter')
enc.typ(ABIContractType.ADDRESS)
enc.address(address)
data = add_0x(enc.get())
tx = self.template(sender_address, contract_address)
tx = self.set_code(tx, data)
o['params'].append(self.normalize(tx))
return o