eth-accounts-index/python/eth_accounts_index/interface.py

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# standard imports
import logging
import json
import os
# external imports
from chainlib.eth.tx import (
TxFactory,
TxFormat,
)
from chainlib.eth.contract import (
ABIContractEncoder,
ABIContractDecoder,
ABIContractType,
abi_decode_single,
)
from chainlib.eth.constant import ZERO_ADDRESS
from chainlib.jsonrpc import (
jsonrpc_template,
)
from chainlib.eth.error import RequestMismatchException
from hexathon import (
add_0x,
strip_0x,
)
logg = logging.getLogger()
class AccountsIndex(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(self, contract_address, sender_address, address, tx_format=TxFormat.JSONRPC):
return self.__single_address_method('add', contract_address, sender_address, address, tx_format)
def have(self, contract_address, address, sender_address=ZERO_ADDRESS):
o = jsonrpc_template()
o['method'] = 'eth_call'
enc = ABIContractEncoder()
enc.method('have')
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
def entry_count(self, contract_address, sender_address=ZERO_ADDRESS):
o = jsonrpc_template()
o['method'] = 'eth_call'
enc = ABIContractEncoder()
enc.method('entryCount')
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
def count(self, contract_address, sender_address=ZERO_ADDRESS):
return self.entry_count(contract_address, sender_address=sender_address)
def entry(self, contract_address, idx, sender_address=ZERO_ADDRESS):
o = jsonrpc_template()
o['method'] = 'eth_call'
enc = ABIContractEncoder()
enc.method('entry')
enc.typ(ABIContractType.UINT256)
enc.uint256(idx)
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
@classmethod
def parse_account(self, v):
return abi_decode_single(ABIContractType.ADDRESS, v)
@classmethod
def parse_have(self, v):
return abi_decode_single(ABIContractType.BOOLEAN, v)
@classmethod
def parse_add_request(self, v):
v = strip_0x(v)
cursor = 0
enc = ABIContractEncoder()
enc.method('add')
enc.typ(ABIContractType.ADDRESS)
r = enc.get()
l = len(r)
m = v[:l]
if m != r:
logg.error('method mismatch, expected {}, got {}'.format(r, m))
raise RequestMismatchException(v)
cursor += l
dec = ABIContractDecoder()
dec.typ(ABIContractType.ADDRESS)
dec.val(v[cursor:cursor+64])
r = dec.decode()
return r