mirror of
https://github.com/chaintool-py/eth-erc20.git
synced 2024-10-16 18:46:46 +02:00
133 lines
4.5 KiB
Python
133 lines
4.5 KiB
Python
#!python3
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"""Token transfer script
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.. moduleauthor:: Louis Holbrook <dev@holbrook.no>
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.. pgp:: 0826EDA1702D1E87C6E2875121D2E7BB88C2A746
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"""
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# SPDX-License-Identifier: GPL-3.0-or-later
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# standard imports
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import os
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import io
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import json
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import argparse
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import logging
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# external imports
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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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from chainlib.eth.connection import EthHTTPConnection
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from chainlib.chain import ChainSpec
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from chainlib.eth.runnable.util import decode_for_puny_humans
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from chainlib.eth.address import (
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to_checksum_address,
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is_same_address,
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)
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import chainlib.eth.cli
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# local imports
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from eth_erc20 import ERC20
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logging.basicConfig(level=logging.WARNING)
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logg = logging.getLogger()
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arg_flags = chainlib.eth.cli.argflag_std_write | chainlib.eth.cli.Flag.EXEC | chainlib.eth.cli.Flag.WALLET
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argparser = chainlib.eth.cli.ArgumentParser(arg_flags)
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argparser.add_argument('--from', type=str, help='Address to send on behalf of')
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argparser.add_positional('amount', type=int, help='Token amount to send')
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args = argparser.parse_args()
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extra_args = {
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'amount': None,
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'from': None,
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}
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config = chainlib.eth.cli.Config.from_args(args, arg_flags, extra_args=extra_args, default_fee_limit=100000)
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block_all = args.ww
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block_last = args.w or block_all
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wallet = chainlib.eth.cli.Wallet()
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wallet.from_config(config)
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rpc = chainlib.eth.cli.Rpc(wallet=wallet)
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conn = rpc.connect_by_config(config)
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chain_spec = ChainSpec.from_chain_str(config.get('CHAIN_SPEC'))
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value = config.get('_AMOUNT')
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send = config.true('_RPC_SEND')
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def balance(generator, token_address, address, id_generator=None):
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o = generator.balance(token_address, address, id_generator=id_generator)
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r = conn.do(o)
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token_balance = generator.parse_balance(r)
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return token_balance
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def main():
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signer = rpc.get_signer()
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signer_address = rpc.get_sender_address()
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gas_oracle = rpc.get_gas_oracle()
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nonce_oracle = rpc.get_nonce_oracle()
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g = ERC20(chain_spec, signer=signer, gas_oracle=gas_oracle, nonce_oracle=nonce_oracle)
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recipient = to_checksum_address(config.get('_RECIPIENT'))
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if not config.true('_UNSAFE') and recipient != add_0x(config.get('_RECIPIENT')):
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raise ValueError('invalid checksum address for recipient')
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token_address = to_checksum_address(config.get('_EXEC_ADDRESS'))
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if not config.true('_UNSAFE') and token_address != add_0x(config.get('_EXEC_ADDRESS')):
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raise ValueError('invalid checksum address for contract')
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transfer_from_address = None
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if config.get('_FROM'):
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transfer_from_address = to_checksum_address(config.get('_FROM'))
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if not config.true('_UNSAFE') and transfer_from_address != add_0x(config.get('_FROM')):
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raise ValueError('invalid checksum address for "from" argument')
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check_balance_address = None
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if logg.isEnabledFor(logging.DEBUG):
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if transfer_from_address:
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check_balance_address = transfer_from_address
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else:
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check_balance_address = signer_address
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sender_balance = balance(g, token_address, check_balance_address, id_generator=rpc.id_generator)
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recipient_balance = balance(g, token_address, recipient, id_generator=rpc.id_generator)
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logg.debug('sender {} balance before: {}'.format(check_balance_address, sender_balance))
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logg.debug('recipient {} balance before: {}'.format(recipient, recipient_balance))
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if transfer_from_address and not is_same_address(transfer_from_address, signer_address):
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(tx_hash_hex, o) = g.transfer_from(token_address, signer_address, transfer_from_address, recipient, value, id_generator=rpc.id_generator)
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else:
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(tx_hash_hex, o) = g.transfer(token_address, signer_address, recipient, value, id_generator=rpc.id_generator)
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if send:
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conn.do(o)
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if block_last:
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r = conn.wait(tx_hash_hex)
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if logg.isEnabledFor(logging.DEBUG):
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sender_balance = balance(g, token_address, check_balance_address, id_generator=rpc.id_generator)
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recipient_balance = balance(g, token_address, recipient, id_generator=rpc.id_generator)
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logg.debug('sender {} balance after: {}'.format(check_balance_address, sender_balance))
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logg.debug('recipient {} balance after: {}'.format(recipient, recipient_balance))
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if r['status'] == 0:
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logg.critical('VM revert. Wish I could tell you more')
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sys.exit(1)
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print(tx_hash_hex)
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else:
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print(o['params'][0])
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if __name__ == '__main__':
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main()
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