mirror of
git://holbrook.no/eth-contract-registry
synced 2024-11-16 14:36:46 +01:00
49 lines
1.3 KiB
Python
49 lines
1.3 KiB
Python
# standard imports
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import logging
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# external imports
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from chainlib.jsonrpc import JSONRPCRequest
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from chainlib.eth.contract import (
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ABIContractEncoder,
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ABIContractType,
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abi_decode_single,
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)
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from chainlib.eth.tx import TxFactory
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from hexathon import (
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add_0x,
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)
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from chainlib.eth.constant import (
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ZERO_ADDRESS,
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)
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# local imports
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from .encoding import (
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to_identifier,
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)
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logg = logging.getLogger(__name__)
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class Registry(TxFactory):
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def address_of(self, contract_address, identifier_string, sender_address=ZERO_ADDRESS, id_generator=None):
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j = JSONRPCRequest(id_generator)
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o = j.template()
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o['method'] = 'eth_call'
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enc = ABIContractEncoder()
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enc.method('addressOf')
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enc.typ(ABIContractType.BYTES32)
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identifier = to_identifier(identifier_string)
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logg.debug('identifier {} {}'.format(identifier, identifier_string))
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enc.bytes32(identifier)
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data = add_0x(enc.encode())
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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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o = j.finalize(o)
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return o
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@classmethod
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def parse_address_of(self, v):
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return abi_decode_single(ABIContractType.ADDRESS, v)
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