chainlib/chainlib/eth/runnable/decode.py

#!python3

"""Decode raw transaction

.. moduleauthor:: Louis Holbrook <dev@holbrook.no>
.. pgp:: 0826EDA1702D1E87C6E2875121D2E7BB88C2A746 

"""

# SPDX-License-Identifier: GPL-3.0-or-later

# standard imports
import os
import json
import argparse
import logging

# third-party imports
from chainlib.eth.tx import unpack
from chainlib.chain import ChainSpec


logging.basicConfig(level=logging.WARNING)
logg = logging.getLogger()

default_abi_dir = os.environ.get('ETH_ABI_DIR', '/usr/share/local/cic/solidity/abi')
default_eth_provider = os.environ.get('ETH_PROVIDER', 'http://localhost:8545')

argparser = argparse.ArgumentParser()
argparser.add_argument('-v', action='store_true', help='Be verbose')
argparser.add_argument('-i', '--chain-id', dest='i', type=str, help='Numeric network id')
argparser.add_argument('tx', type=str, help='hex-encoded signed raw transaction')
args = argparser.parse_args()

if args.v:
    logg.setLevel(logging.DEBUG)

chain_spec = ChainSpec.from_chain_str(args.i)
chain_id = chain_spec.network_id()


def main():
    tx_raw = args.tx
    if tx_raw[:2] == '0x':
        tx_raw = tx_raw[2:]
    tx_raw_bytes = bytes.fromhex(tx_raw)
    tx = unpack(tx_raw_bytes, int(chain_id))
    for k in tx.keys():
        x = None
        if k == 'value':
            x = '{:.18f} eth'.format(tx[k] / (10**18))
        elif k == 'gasPrice':
            x = '{} gwei'.format(int(tx[k] / (10**12)))
        if x != None:
            print('{}: {} ({})'.format(k, tx[k], x))
        else:
            print('{}: {}'.format(k, tx[k]))


if __name__ == '__main__':
    main()