mirror of
https://github.com/chaintool-py/eth-erc20.git
synced 2024-10-16 18:46:46 +02:00
169 lines
5.1 KiB
Python
169 lines
5.1 KiB
Python
# standard imports
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import os
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import logging
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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.hash import keccak256_string_to_hex
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from chainlib.eth.contract import (
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ABIContractEncoder,
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ABIContractType,
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)
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from chainlib.eth.constant import ZERO_ADDRESS
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from chainlib.jsonrpc import JSONRPCRequest
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from hexathon import add_0x
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# local imports
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from giftable_erc20_token.data import data_dir
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from eth_erc20 import ERC20
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logg = logging.getLogger(__name__)
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class GiftableToken(ERC20):
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__abi = None
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__bytecode = None
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def constructor(self, sender_address, name, symbol, decimals, expire=0, tx_format=TxFormat.JSONRPC, version=None):
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code = self.cargs(name, symbol, decimals, expire=expire)
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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.finalize(tx, tx_format)
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@staticmethod
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def cargs(name, symbol, decimals, expire=0, version=None):
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if expire == None:
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expire = 0
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code = GiftableToken.bytecode(version=version)
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enc = ABIContractEncoder()
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enc.string(name)
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enc.string(symbol)
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enc.uint256(decimals)
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enc.uint256(expire)
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code += enc.get()
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return code
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@staticmethod
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def gas(code=None):
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return 2000000
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@staticmethod
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def abi():
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if GiftableToken.__abi == None:
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f = open(os.path.join(data_dir, 'GiftableToken.json'), 'r')
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GiftableToken.__abi = json.load(f)
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f.close()
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return GiftableToken.__abi
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@staticmethod
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def bytecode(version=None):
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if GiftableToken.__bytecode == None:
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f = open(os.path.join(data_dir, 'GiftableToken.bin'))
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GiftableToken.__bytecode = f.read()
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f.close()
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return GiftableToken.__bytecode
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def add_minter(self, contract_address, sender_address, address, tx_format=TxFormat.JSONRPC):
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enc = ABIContractEncoder()
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enc.method('addMinter')
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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 remove_minter(self, contract_address, sender_address, address, tx_format=TxFormat.JSONRPC):
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enc = ABIContractEncoder()
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enc.method('removeMinter')
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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 mint_to(self, contract_address, sender_address, address, value, tx_format=TxFormat.JSONRPC):
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enc = ABIContractEncoder()
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enc.method('mintTo')
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enc.typ(ABIContractType.ADDRESS)
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enc.typ(ABIContractType.UINT256)
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enc.address(address)
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enc.uint256(value)
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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 burn(self, contract_address, sender_address, value, tx_format=TxFormat.JSONRPC):
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enc = ABIContractEncoder()
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enc.method('burn')
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enc.typ(ABIContractType.UINT256)
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enc.uint256(value)
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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 burned(self, contract_address, 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('totalBurned')
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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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o['params'].append('latest')
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o = j.finalize(o)
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return o
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def total_minted(self, contract_address, 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('totalMinted')
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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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o['params'].append('latest')
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o = j.finalize(o)
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return o
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def bytecode(**kwargs):
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return GiftableToken.bytecode(version=kwargs.get('version'))
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def create(**kwargs):
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return GiftableToken.cargs(kwargs['name'], kwargs['symbol'], kwargs['decimals'], expire=kwargs.get('expire'), version=kwargs.get('version'))
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def args(v):
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if v == 'create':
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return (['name', 'symbol', 'decimals'], ['expire', 'version'],)
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elif v == 'default' or v == 'bytecode':
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return ([], ['version'],)
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raise ValueError('unknown command: ' + v)
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