mirror of
git://holbrook.no/eth-contract-registry
synced 2024-12-22 20:27:32 +01:00
137 lines
3.7 KiB
Python
137 lines
3.7 KiB
Python
# standard imports
|
|
import os
|
|
import logging
|
|
import json
|
|
import hashlib
|
|
|
|
# third-party imports
|
|
from chainlib.eth.contract import (
|
|
ABIContractEncoder,
|
|
ABIContractType,
|
|
abi_decode_single,
|
|
)
|
|
from chainlib.chain import ChainSpec
|
|
from chainlib.eth.constant import (
|
|
ZERO_ADDRESS,
|
|
)
|
|
from chainlib.jsonrpc import (
|
|
jsonrpc_template,
|
|
)
|
|
from hexathon import (
|
|
even,
|
|
add_0x,
|
|
)
|
|
from chainlib.eth.tx import TxFactory
|
|
|
|
# local imports
|
|
from .encoding import (
|
|
to_identifier,
|
|
from_identifier_hex,
|
|
)
|
|
from .interface import Registry
|
|
|
|
logg = logging.getLogger(__name__)
|
|
|
|
moddir = os.path.dirname(__file__)
|
|
datadir = os.path.join(moddir, 'data')
|
|
|
|
|
|
class ContractRegistry(Registry):
|
|
|
|
default_chain_spec = None
|
|
__chains_registry = {}
|
|
|
|
__abi = None
|
|
__bytecode = None
|
|
|
|
@staticmethod
|
|
def abi():
|
|
if ContractRegistry.__abi == None:
|
|
f = open(os.path.join(datadir, 'Registry.json'), 'r')
|
|
ContractRegistry.__abi = json.load(f)
|
|
f.close()
|
|
return ContractRegistry.__abi
|
|
|
|
|
|
@staticmethod
|
|
def bytecode():
|
|
if ContractRegistry.__bytecode == None:
|
|
f = open(os.path.join(datadir, 'Registry.bin'))
|
|
ContractRegistry.__bytecode = f.read()
|
|
f.close()
|
|
return ContractRegistry.__bytecode
|
|
|
|
|
|
@staticmethod
|
|
def gas(code=None):
|
|
return 1500000
|
|
|
|
|
|
def constructor(self, sender_address, identifier_strings=[]):
|
|
# TODO: handle arrays in chainlib encode instead
|
|
enc = ABIContractEncoder()
|
|
enc.uint256(32)
|
|
enc.uint256(len(identifier_strings))
|
|
for s in identifier_strings:
|
|
enc.bytes32(to_identifier(s))
|
|
data = enc.get_contents()
|
|
|
|
tx = self.template(sender_address, None, use_nonce=True)
|
|
tx = self.set_code(tx, ContractRegistry.bytecode() + data)
|
|
logg.debug('bytecode {}\ndata {}\ntx {}'.format(ContractRegistry.bytecode(), data, tx))
|
|
return self.build(tx)
|
|
|
|
|
|
@staticmethod
|
|
def address(address=None):
|
|
if address != None:
|
|
ContractRegistry.__address = address
|
|
return Registry.__address
|
|
|
|
|
|
@staticmethod
|
|
def load_for(chain_spec):
|
|
chain_str = str(chain_spec)
|
|
raise NotImplementedError()
|
|
|
|
|
|
def set(self, contract_address, sender_address, identifier_string, address, chain_spec, chain_config_hash):
|
|
enc = ABIContractEncoder()
|
|
enc.method('set')
|
|
enc.typ(ABIContractType.BYTES32)
|
|
enc.typ(ABIContractType.ADDRESS)
|
|
enc.typ(ABIContractType.BYTES32)
|
|
enc.typ(ABIContractType.BYTES32)
|
|
identifier = to_identifier(identifier_string)
|
|
enc.bytes32(identifier)
|
|
enc.address(address)
|
|
chain_str = str(chain_spec)
|
|
h = hashlib.new('sha256')
|
|
h.update(chain_str.encode('utf-8'))
|
|
chain_description_hash_bytes = h.digest()
|
|
enc.bytes32(chain_description_hash_bytes.hex())
|
|
enc.bytes32(chain_config_hash)
|
|
data = enc.encode()
|
|
tx = self.template(sender_address, contract_address, use_nonce=True)
|
|
tx = self.set_code(tx, data)
|
|
return self.build(tx)
|
|
|
|
|
|
def identifier(self, contract_address, idx, sender_address=ZERO_ADDRESS):
|
|
o = jsonrpc_template()
|
|
o['method'] = 'eth_call'
|
|
enc = ABIContractEncoder()
|
|
enc.method('identifiers')
|
|
enc.typ(ABIContractType.UINT256)
|
|
enc.uint256(idx)
|
|
data = add_0x(enc.encode())
|
|
tx = self.template(sender_address, contract_address)
|
|
tx = self.set_code(tx, data)
|
|
o['params'].append(self.normalize(tx))
|
|
return o
|
|
|
|
|
|
@classmethod
|
|
def parse_identifier(self, v):
|
|
return from_identifier_hex(v)
|