162 lines
4.6 KiB
Python
162 lines
4.6 KiB
Python
# standard imports
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import logging
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import json
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import os
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# external imports
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from chainlib.eth.tx import (
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TxFactory,
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TxFormat,
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)
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from chainlib.eth.contract import (
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ABIContractEncoder,
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ABIContractDecoder,
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ABIContractType,
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abi_decode_single,
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)
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from chainlib.eth.constant import ZERO_ADDRESS
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from chainlib.jsonrpc import (
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jsonrpc_template,
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)
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from chainlib.eth.error import RequestMismatchException
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from hexathon import (
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add_0x,
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strip_0x,
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)
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logg = logging.getLogger()
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moddir = os.path.dirname(__file__)
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datadir = os.path.join(moddir, 'data')
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class AccountRegistry(TxFactory):
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__abi = None
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__bytecode = None
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@staticmethod
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def abi():
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if AccountRegistry.__abi == None:
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f = open(os.path.join(datadir, 'AccountsIndex.json'), 'r')
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AccountRegistry.__abi = json.load(f)
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f.close()
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return AccountRegistry.__abi
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@staticmethod
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def bytecode():
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if AccountRegistry.__bytecode == None:
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f = open(os.path.join(datadir, 'AccountsIndex.bin'))
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AccountRegistry.__bytecode = f.read()
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f.close()
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return AccountRegistry.__bytecode
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@staticmethod
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def gas(code=None):
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return 700000
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def constructor(self, sender_address):
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code = AccountRegistry.bytecode()
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tx = self.template(sender_address, None, use_nonce=True)
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tx = self.set_code(tx, code)
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return self.build(tx)
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def add(self, contract_address, sender_address, address, tx_format=TxFormat.JSONRPC):
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return self.__single_address_method('add', contract_address, sender_address, address, tx_format)
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def add_writer(self, contract_address, sender_address, address, tx_format=TxFormat.JSONRPC):
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return self.__single_address_method('addWriter', contract_address, sender_address, address, tx_format)
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def delete_writer(self, contract_address, sender_address, address, tx_format=TxFormat.JSONRPC):
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return self.__single_address_method('deleteWriter', contract_address, sender_address, address, tx_format)
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def __single_address_method(self, method, contract_address, sender_address, address, tx_format=TxFormat.JSONRPC):
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enc = ABIContractEncoder()
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enc.method(method)
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enc.typ(ABIContractType.ADDRESS)
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enc.address(address)
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data = enc.get()
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tx = self.template(sender_address, contract_address, use_nonce=True)
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tx = self.set_code(tx, data)
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tx = self.finalize(tx, tx_format)
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return tx
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def have(self, contract_address, address, sender_address=ZERO_ADDRESS):
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o = jsonrpc_template()
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o['method'] = 'eth_call'
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enc = ABIContractEncoder()
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enc.method('have')
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enc.typ(ABIContractType.ADDRESS)
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enc.address(address)
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data = add_0x(enc.get())
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tx = self.template(sender_address, contract_address)
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tx = self.set_code(tx, data)
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o['params'].append(self.normalize(tx))
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return o
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def count(self, contract_address, sender_address=ZERO_ADDRESS):
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o = jsonrpc_template()
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o['method'] = 'eth_call'
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enc = ABIContractEncoder()
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enc.method('count')
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data = add_0x(enc.get())
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tx = self.template(sender_address, contract_address)
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tx = self.set_code(tx, data)
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o['params'].append(self.normalize(tx))
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return o
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def account(self, contract_address, idx, sender_address=ZERO_ADDRESS):
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o = jsonrpc_template()
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o['method'] = 'eth_call'
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enc = ABIContractEncoder()
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enc.method('accounts')
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enc.typ(ABIContractType.UINT256)
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enc.uint256(idx)
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data = add_0x(enc.get())
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tx = self.template(sender_address, contract_address)
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tx = self.set_code(tx, data)
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o['params'].append(self.normalize(tx))
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return o
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@classmethod
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def parse_account(self, v):
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return abi_decode_single(ABIContractType.ADDRESS, v)
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@classmethod
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def parse_have(self, v):
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return abi_decode_single(ABIContractType.BOOLEAN, v)
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@classmethod
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def parse_add_request(self, v):
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v = strip_0x(v)
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cursor = 0
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enc = ABIContractEncoder()
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enc.method('add')
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enc.typ(ABIContractType.ADDRESS)
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r = enc.get()
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l = len(r)
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m = v[:l]
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if m != r:
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logg.error('method mismatch, expected {}, got {}'.format(r, m))
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raise RequestMismatchException(v)
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cursor += l
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dec = ABIContractDecoder()
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dec.typ(ABIContractType.ADDRESS)
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dec.val(v[cursor:cursor+64])
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r = dec.decode()
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return r
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