eth-erc20

ERC20 interface and example giftable token contract
Log | Files | Refs | LICENSE

commit 4310c043c594c6ad3363e8d5a4523b467e69276e
parent d771dbb73db1007c6f6c9f1166bc6dc6f2d67ff4
Author: nolash <dev@holbrook.no>
Date:   Tue, 15 Jun 2021 11:27:21 +0200

Revert "Add decode script"

This reverts commit d771dbb73db1007c6f6c9f1166bc6dc6f2d67ff4.

Diffstat:
Mpython/CHANGELOG | 1-
Mpython/eth_erc20/erc20.py | 14+-------------
Dpython/eth_erc20/runnable/decode.py | 77-----------------------------------------------------------------------------
Mpython/eth_erc20/runnable/transfer.py | 31++++++++++---------------------
Dpython/eth_erc20/runnable/util.py | 71-----------------------------------------------------------------------
Mpython/setup.cfg | 3+--
6 files changed, 12 insertions(+), 185 deletions(-)

diff --git a/python/CHANGELOG b/python/CHANGELOG @@ -3,7 +3,6 @@ - Change makefile to compile contract for Byzantium. - Change mint method name to mintTo - Add add minter executable script - - Add decode script * 0.0.6 - Rename contracts-dir flag to abi-dir - Use package data dir as default abi dir diff --git a/python/eth_erc20/erc20.py b/python/eth_erc20/erc20.py @@ -32,9 +32,7 @@ logg = logging.getLogger() class ERC20(TxFactory): - - def gas(self, code=None): - return 8000000 + def balance_of(self, contract_address, address, sender_address=ZERO_ADDRESS): o = jsonrpc_template() @@ -167,17 +165,7 @@ class ERC20(TxFactory): @classmethod - def parse_total_supply(self, v): - return abi_decode_single(ABIContractType.UINT256, v) - - - @classmethod def parse_balance(self, v): - return self.parse_balance_of(v) - - - @classmethod - def parse_balance_of(self, v): return abi_decode_single(ABIContractType.UINT256, v) diff --git a/python/eth_erc20/runnable/decode.py b/python/eth_erc20/runnable/decode.py @@ -1,77 +0,0 @@ -#!python3 - -"""Decode raw ERC20 transaction - -.. moduleauthor:: Louis Holbrook <dev@holbrook.no> -.. pgp:: 0826EDA1702D1E87C6E2875121D2E7BB88C2A746 - -""" - -# SPDX-License-Identifier: GPL-3.0-or-later - -# standard imports -import sys -import os -import json -import argparse -import logging -import select - -# external imports -from chainlib.eth.tx import unpack -from chainlib.chain import ChainSpec -from chainlib.eth.connection import EthHTTPConnection - -# local imports -from eth_erc20.runnable.util import Decoder - -logging.basicConfig(level=logging.WARNING) -logg = logging.getLogger() - -def stdin_arg(t=0): - h = select.select([sys.stdin], [], [], t) - if len(h[0]) > 0: - logg.debug('got stdin arg') - v = h[0][0].read() - return v.rstrip() - return None - -default_eth_provider = os.environ.get('ETH_PROVIDER', 'http://localhost:8545') - -argparser = argparse.ArgumentParser() -argparser.add_argument('-p', '--provider', dest='p', default=default_eth_provider, type=str, help='Web3 provider url (http only)') -argparser.add_argument('-n', '--no-resolve', dest='n', action='store_true', help='Do not resolve token metadata on-chain') -argparser.add_argument('-i', '--chain-id', dest='i', default='evm:ethereum:1', type=str, help='Numeric network id') -argparser.add_argument('-v', action='store_true', help='Be verbose') -argparser.add_argument('-vv', action='store_true', help='Be more verbose') -argparser.add_argument('tx', type=str, nargs='?', default=stdin_arg(), help='hex-encoded signed raw transaction') -args = argparser.parse_args() - -if args.vv: - logg.setLevel(logging.DEBUG) -elif args.v: - logg.setLevel(logging.INFO) - -argp = args.tx -if argp == None: - logg.info('no argument provided or delayed stdin, attempting another read') - argp = stdin_arg(t=None) - if argp == None: - argparser.error('need first positional argument or value from stdin') - -conn = EthHTTPConnection(args.p) - -chain_spec = ChainSpec.from_chain_str(args.i) - -no_resolve = args.n - -def main(): - tx_raw = argp - resolve_rpc = None - if not no_resolve: - resolve_rpc = conn - dec = Decoder(chain_spec) - dec.decode_for_puny_humans(tx_raw, chain_spec, sys.stdout, 'transfer', rpc=resolve_rpc) - -if __name__ == '__main__': - main() diff --git a/python/eth_erc20/runnable/transfer.py b/python/eth_erc20/runnable/transfer.py @@ -10,7 +10,6 @@ # SPDX-License-Identifier: GPL-3.0-or-later # standard imports -import sys import os import io import json @@ -30,9 +29,6 @@ from chainlib.eth.nonce import ( RPCNonceOracle, OverrideNonceOracle, ) -from chainlib.eth.tx import ( - unpack, - ) from chainlib.eth.gas import ( RPCGasOracle, OverrideGasOracle, @@ -46,17 +42,18 @@ from eth_erc20 import ERC20 logging.basicConfig(level=logging.WARNING) logg = logging.getLogger() -default_eth_provider = os.environ.get('ETH_PROVIDER', 'http://localhost:8545') +logging.getLogger('web3').setLevel(logging.WARNING) +logging.getLogger('urllib3').setLevel(logging.WARNING) +default_abi_dir = '/usr/local/share/cic/solidity/abi' argparser = argparse.ArgumentParser() -argparser.add_argument('-p', '--provider', dest='p', default=default_eth_provider, type=str, help='Web3 provider url (http only)') +argparser.add_argument('-p', '--provider', dest='p', default='http://localhost:8545', type=str, help='Web3 provider url (http only)') argparser.add_argument('-w', action='store_true', help='Wait for the last transaction to be confirmed') argparser.add_argument('-ww', action='store_true', help='Wait for every transaction to be confirmed') argparser.add_argument('-i', '--chain-spec', dest='i', type=str, default='evm:ethereum:1', help='Chain specification string') -argparser.add_argument('-a', '--token-address', required=True, dest='a', type=str, help='Token address') -argparser.add_argument('-y', '--key-file', dest='y', required=True, type=str, help='Ethereum keystore file to use for signing') +argparser.add_argument('-a', '--token-address', required='True', dest='a', type=str, help='Token address') +argparser.add_argument('-y', '--key-file', dest='y', type=str, help='Ethereum keystore file to use for signing') argparser.add_argument('--env-prefix', default=os.environ.get('CONFINI_ENV_PREFIX'), dest='env_prefix', type=str, help='environment prefix for variables to overwrite configuration') -argparser.add_argument('--data-only', dest='data_only', action='store_true', help='output data part only (does not require key)') argparser.add_argument('-u', '--unsafe', dest='u', action='store_true', help='Auto-convert address to checksum adddress') argparser.add_argument('-s', '--send', dest='s', action='store_true', help='Send to network') argparser.add_argument('--nonce', type=int, help='Override nonce') @@ -77,10 +74,6 @@ elif args.v: block_all = args.ww block_last = args.w or block_all -signer = None -signer_address = None -nonce_oracle = None - passphrase_env = 'ETH_PASSPHRASE' if args.env_prefix != None: passphrase_env = args.env_prefix + '_' + passphrase_env @@ -90,6 +83,7 @@ if passphrase == None: logg.warning('no passphrase given') passphrase='' +signer_address = None keystore = DictKeystore() if args.y != None: logg.debug('loading keystore file {}'.format(args.y)) @@ -105,12 +99,14 @@ if args.nonce != None: else: nonce_oracle = RPCNonceOracle(signer_address, conn) +def _max_gas(code=None): + return 8000000 gas_oracle = None if args.gas_price != None or args.gas_limit != None: gas_oracle = OverrideGasOracle(price=args.gas_price, limit=args.gas_limit) else: - gas_oracle = RPCGasOracle(conn, code_callback=ERC20.gas()) + gas_oracle = RPCGasOracle(conn, code_callback=_max_gas) chain_spec = ChainSpec.from_chain_str(args.i) chain_id = chain_spec.network_id() @@ -119,8 +115,6 @@ value = args.amount send = args.s -data_only = args.data_only - g = ERC20(chain_spec, signer=signer, gas_oracle=gas_oracle, nonce_oracle=nonce_oracle) @@ -141,11 +135,6 @@ def main(): logg.debug('recipient {} balance after: {}'.format(recipient, balance(args.a, recipient))) (tx_hash_hex, o) = g.transfer(args.a, signer_address, recipient, value) - if data_only: - tx_raw_bytes = bytes.fromhex(strip_0x(o['params'][0])) - tx = unpack(tx_raw_bytes, chain_spec) - print(tx['data']) - sys.exit(0) if send: conn.do(o) diff --git a/python/eth_erc20/runnable/util.py b/python/eth_erc20/runnable/util.py @@ -1,71 +0,0 @@ -# external imports -from chainlib.eth.tx import ( - unpack, - Tx, - ) -from hexathon import ( - strip_0x, - add_0x, - ) -from chainlib.eth.constant import ZERO_ADDRESS -from chainlib.eth.runnable.util import decode_out - -# local imports -from eth_erc20.erc20 import ERC20 - -sender_address = ZERO_ADDRESS - - -class Decoder: - - def __init__(self, chain_spec): - self.chain_spec = chain_spec - - - def decode_transfer(self, tx, writer, rpc=None): - r = ERC20.parse_transfer_request(tx['data']) - token_value = r[1] - token_str = tx['to'] - token_recipient = r[0] - if rpc != None: - c = ERC20(self.chain_spec) - o = c.symbol(tx['to'], sender_address=sender_address) - r = rpc.do(o) - symbol = c.parse_symbol(r) - - o = c.name(tx['to'], sender_address=sender_address) - r = rpc.do(o) - name = c.parse_symbol(r) - - o = c.decimals(tx['to'], sender_address=sender_address) - r = rpc.do(o) - decimals = c.parse_decimals(r) - - token_str = '{} ({})'.format(name, symbol) - token_value = token_value / (10 ** decimals) - token_value_str = '{:.6f} ({} decimals)'.format(token_value, decimals) - - writer.write("""to: {} -token: {} -value: {} -""".format( - token_recipient, - token_str, - token_value_str, - ) -) - - #writer.write('{}\n'.format(r))k - - - def decode_for_puny_humans(self, tx_raw, chain_spec, writer, method, rpc=None): - tx_raw = strip_0x(tx_raw) - tx_raw_bytes = bytes.fromhex(tx_raw) - tx_src = unpack(tx_raw_bytes, chain_spec) - tx = Tx.src_normalize(tx_src) - - self.decode_transfer(tx, writer, rpc=rpc) - - decode_out(tx_src, writer, skip_keys=['to']) - - writer.write('src: {}\n'.format(add_0x(tx_raw))) diff --git a/python/setup.cfg b/python/setup.cfg @@ -1,6 +1,6 @@ [metadata] name = eth-erc20 -version = 0.0.9a5 +version = 0.0.9a2 description = ERC20 interface and simple contract with deployment script that lets any address mint and gift itself tokens. author = Louis Holbrook author_email = dev@holbrook.no @@ -44,4 +44,3 @@ console_scripts = giftable-token-minter = giftable_erc20_token.runnable.minter:main erc20-transfer = eth_erc20.runnable.transfer:main erc20-balance = eth_erc20.runnable.balance:main - erc20-decode = eth_erc20.runnable.decode:main