Remove ERC20 interface

This commit is contained in:
nolash 2021-05-02 14:49:34 +02:00
parent 39c59cceb9
commit 69bb03d10c
Signed by: lash
GPG Key ID: 21D2E7BB88C2A746
8 changed files with 8 additions and 529 deletions

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@ -1,9 +1,11 @@
- 0.0.1
- 0.0.3-pending
* Remove erc20 module (to new external package)
- 0.0.2-unreleased
*
- 0.0.1-unreleased
* Add eth tx decode
* Add eth balance query with erc20 option
* Add eth checksum address
* Add eth subscribe monitor
* Add eth erc20 transfer script
* Add eth gas send script
* Add eth eip165 support
* Add eth eip173, custom "owned" support

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@ -1,238 +0,0 @@
# standard imports
import logging
# external imports
import sha3
from hexathon import (
add_0x,
strip_0x,
)
from crypto_dev_signer.eth.transaction import EIP155Transaction
# local imports
from chainlib.hash import (
keccak256_hex_to_hex,
keccak256_string_to_hex,
)
from .constant import ZERO_ADDRESS
from .tx import (
TxFactory,
TxFormat,
)
from .contract import (
ABIContractEncoder,
ABIContractDecoder,
ABIContractType,
abi_decode_single,
)
from chainlib.jsonrpc import jsonrpc_template
from .error import RequestMismatchException
logg = logging.getLogger()
class ERC20(TxFactory):
def balance_of(self, contract_address, address, sender_address=ZERO_ADDRESS):
o = jsonrpc_template()
o['method'] = 'eth_call'
enc = ABIContractEncoder()
enc.method('balanceOf')
enc.typ(ABIContractType.ADDRESS)
enc.address(address)
data = add_0x(enc.get())
tx = self.template(sender_address, contract_address)
tx = self.set_code(tx, data)
o['params'].append(self.normalize(tx))
o['params'].append('latest')
return o
def balance(self, contract_address, address, sender_address=ZERO_ADDRESS):
return self.balance_of(contract_address, address, sender_address=ZERO_ADDRESS)
def symbol(self, contract_address, sender_address=ZERO_ADDRESS):
o = jsonrpc_template()
o['method'] = 'eth_call'
enc = ABIContractEncoder()
enc.method('symbol')
data = add_0x(enc.get())
tx = self.template(sender_address, contract_address)
tx = self.set_code(tx, data)
o['params'].append(self.normalize(tx))
o['params'].append('latest')
return o
def name(self, contract_address, sender_address=ZERO_ADDRESS):
o = jsonrpc_template()
o['method'] = 'eth_call'
enc = ABIContractEncoder()
enc.method('name')
data = add_0x(enc.get())
tx = self.template(sender_address, contract_address)
tx = self.set_code(tx, data)
o['params'].append(self.normalize(tx))
o['params'].append('latest')
return o
def decimals(self, contract_address, sender_address=ZERO_ADDRESS):
o = jsonrpc_template()
o['method'] = 'eth_call'
enc = ABIContractEncoder()
enc.method('decimals')
data = add_0x(enc.get())
tx = self.template(sender_address, contract_address)
tx = self.set_code(tx, data)
o['params'].append(self.normalize(tx))
o['params'].append('latest')
return o
def transfer(self, contract_address, sender_address, recipient_address, value, tx_format=TxFormat.JSONRPC):
enc = ABIContractEncoder()
enc.method('transfer')
enc.typ(ABIContractType.ADDRESS)
enc.typ(ABIContractType.UINT256)
enc.address(recipient_address)
enc.uint256(value)
data = add_0x(enc.get())
tx = self.template(sender_address, contract_address, use_nonce=True)
tx = self.set_code(tx, data)
tx = self.finalize(tx, tx_format)
return tx
def transfer_from(self, contract_address, sender_address, holder_address, recipient_address, value, tx_format=TxFormat.JSONRPC):
enc = ABIContractEncoder()
enc.method('transferFrom')
enc.typ(ABIContractType.ADDRESS)
enc.typ(ABIContractType.ADDRESS)
enc.typ(ABIContractType.UINT256)
enc.address(holder_address)
enc.address(recipient_address)
enc.uint256(value)
data = add_0x(enc.get())
tx = self.template(sender_address, contract_address, use_nonce=True)
tx = self.set_code(tx, data)
tx = self.finalize(tx, tx_format)
return tx
def approve(self, contract_address, sender_address, spender_address, value, tx_format=TxFormat.JSONRPC):
enc = ABIContractEncoder()
enc.method('approve')
enc.typ(ABIContractType.ADDRESS)
enc.typ(ABIContractType.UINT256)
enc.address(spender_address)
enc.uint256(value)
data = add_0x(enc.get())
tx = self.template(sender_address, contract_address, use_nonce=True)
tx = self.set_code(tx, data)
tx = self.finalize(tx, tx_format)
return tx
@classmethod
def parse_symbol(self, v):
return abi_decode_single(ABIContractType.STRING, v)
@classmethod
def parse_name(self, v):
return abi_decode_single(ABIContractType.STRING, v)
@classmethod
def parse_decimals(self, v):
return abi_decode_single(ABIContractType.UINT256, v)
@classmethod
def parse_balance(self, v):
return abi_decode_single(ABIContractType.UINT256, v)
@classmethod
def parse_transfer_request(self, v):
v = strip_0x(v)
cursor = 0
enc = ABIContractEncoder()
enc.method('transfer')
enc.typ(ABIContractType.ADDRESS)
enc.typ(ABIContractType.UINT256)
r = enc.get()
l = len(r)
m = v[:l]
if m != r:
logg.error('method mismatch, expected {}, got {}'.format(r, m))
raise RequestMismatchException(v)
cursor += l
dec = ABIContractDecoder()
dec.typ(ABIContractType.ADDRESS)
dec.typ(ABIContractType.UINT256)
dec.val(v[cursor:cursor+64])
cursor += 64
dec.val(v[cursor:cursor+64])
r = dec.decode()
return r
@classmethod
def parse_transfer_from_request(self, v):
v = strip_0x(v)
cursor = 0
enc = ABIContractEncoder()
enc.method('transferFrom')
enc.typ(ABIContractType.ADDRESS)
enc.typ(ABIContractType.ADDRESS)
enc.typ(ABIContractType.UINT256)
r = enc.get()
l = len(r)
m = v[:l]
if m != r:
logg.error('method mismatch, expected {}, got {}'.format(r, m))
raise RequestMismatchException(v)
cursor += l
dec = ABIContractDecoder()
dec.typ(ABIContractType.ADDRESS)
dec.typ(ABIContractType.ADDRESS)
dec.typ(ABIContractType.UINT256)
dec.val(v[cursor:cursor+64])
cursor += 64
dec.val(v[cursor:cursor+64])
cursor += 64
dec.val(v[cursor:cursor+64])
r = dec.decode()
return r
@classmethod
def parse_approve_request(self, v):
v = strip_0x(v)
cursor = 0
enc = ABIContractEncoder()
enc.method('approve')
enc.typ(ABIContractType.ADDRESS)
enc.typ(ABIContractType.UINT256)
r = enc.get()
l = len(r)
m = v[:l]
if m != r:
logg.error('method mismatch, expected {}, got {}'.format(r, m))
raise RequestMismatchException(v)
cursor += l
dec = ABIContractDecoder()
dec.typ(ABIContractType.ADDRESS)
dec.typ(ABIContractType.UINT256)
dec.val(v[cursor:cursor+64])
cursor += 64
dec.val(v[cursor:cursor+64])
r = dec.decode()
return r

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@ -30,7 +30,6 @@ from chainlib.jsonrpc import (
jsonrpc_template,
jsonrpc_result,
)
from chainlib.eth.erc20 import ERC20
from chainlib.eth.connection import EthHTTPConnection
from chainlib.eth.gas import (
OverrideGasOracle,
@ -46,7 +45,6 @@ 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('-a', '--token-address', dest='a', type=str, help='Token address. If not set, will return gas balance')
argparser.add_argument('-i', '--chain-spec', dest='i', type=str, default='evm:ethereum:1', help='Chain specification string')
argparser.add_argument('-u', '--unsafe', dest='u', action='store_true', help='Auto-convert address to checksum adddress')
argparser.add_argument('-v', action='store_true', help='Be verbose')
@ -67,31 +65,14 @@ address = to_checksum(args.address)
if not args.u and address != add_0x(args.address):
raise ValueError('invalid checksum address')
token_symbol = 'eth'
chain_spec = ChainSpec.from_chain_str(args.i)
def main():
r = None
decimals = 18
if args.a != None:
#g = ERC20(gas_oracle=gas_oracle)
g = ERC20(chain_spec=chain_spec)
# determine decimals
decimals_o = g.decimals(args.a)
r = conn.do(decimals_o)
decimals = int(strip_0x(r), 16)
symbol_o = g.symbol(args.a)
r = conn.do(decimals_o)
token_symbol = r
# get balance
balance_o = g.balance(args.a, address)
r = conn.do(balance_o)
else:
o = balance(address)
r = conn.do(o)
o = balance(address)
r = conn.do(o)
hx = strip_0x(r)
balance_value = int(hx, 16)

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@ -1,162 +0,0 @@
#!python3
"""Token transfer script
.. moduleauthor:: Louis Holbrook <dev@holbrook.no>
.. pgp:: 0826EDA1702D1E87C6E2875121D2E7BB88C2A746
"""
# SPDX-License-Identifier: GPL-3.0-or-later
# standard imports
import os
import io
import json
import argparse
import logging
# third-party imports
from crypto_dev_signer.eth.signer import ReferenceSigner as EIP155Signer
from crypto_dev_signer.keystore.dict import DictKeystore
from hexathon import (
add_0x,
strip_0x,
)
# local imports
from chainlib.eth.connection import EthHTTPConnection
from chainlib.jsonrpc import jsonrpc_template
from chainlib.eth.nonce import (
RPCNonceOracle,
OverrideNonceOracle,
)
from chainlib.eth.gas import (
RPCGasOracle,
OverrideGasOracle,
)
from chainlib.eth.erc20 import ERC20
from chainlib.chain import ChainSpec
from chainlib.eth.runnable.util import decode_for_puny_humans
logging.basicConfig(level=logging.WARNING)
logg = logging.getLogger()
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='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', 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('-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')
argparser.add_argument('--gas-price', dest='gas_price', type=int, help='Override gas price')
argparser.add_argument('--gas-limit', dest='gas_limit', type=int, help='Override gas limit')
argparser.add_argument('-v', action='store_true', help='Be verbose')
argparser.add_argument('-vv', action='store_true', help='Be more verbose')
argparser.add_argument('recipient', type=str, help='Recipient account address')
argparser.add_argument('amount', type=int, help='Amount of tokens to mint and gift')
args = argparser.parse_args()
if args.vv:
logg.setLevel(logging.DEBUG)
elif args.v:
logg.setLevel(logging.INFO)
block_all = args.ww
block_last = args.w or block_all
passphrase_env = 'ETH_PASSPHRASE'
if args.env_prefix != None:
passphrase_env = args.env_prefix + '_' + passphrase_env
passphrase = os.environ.get(passphrase_env)
logg.error('pass {}'.format(passphrase_env))
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))
signer_address = keystore.import_keystore_file(args.y, password=passphrase)
logg.debug('now have key for signer address {}'.format(signer_address))
signer = EIP155Signer(keystore)
conn = EthHTTPConnection(args.p)
nonce_oracle = None
if args.nonce != None:
nonce_oracle = OverrideNonceOracle(signer_address, args.nonce)
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=_max_gas)
chain_spec = ChainSpec.from_chain_str(args.i)
chain_id = chain_spec.network_id()
value = args.amount
send = args.s
g = ERC20(chain_spec, signer=signer, gas_oracle=gas_oracle, nonce_oracle=nonce_oracle)
def balance(token_address, address):
o = g.balance(token_address, address)
r = conn.do(o)
hx = strip_0x(r)
return int(hx, 16)
def main():
recipient = args.recipient
if not args.u and recipient != add_0x(args.recipient):
raise ValueError('invalid checksum address')
if logg.isEnabledFor(logging.DEBUG):
logg.debug('sender {} balance after: {}'.format(signer_address, balance(args.a, signer_address)))
logg.debug('recipient {} balance after: {}'.format(recipient, balance(args.a, recipient)))
(tx_hash_hex, o) = g.transfer(args.a, signer_address, recipient, value)
if send:
conn.do(o)
if block_last:
r = conn.wait(tx_hash_hex)
if logg.isEnabledFor(logging.DEBUG):
logg.debug('sender {} balance after: {}'.format(signer_address, balance(args.a, signer_address)))
logg.debug('recipient {} balance after: {}'.format(recipient, balance(args.a, recipient)))
if r['status'] == 0:
logg.critical('VM revert. Wish I could tell you more')
sys.exit(1)
print(tx_hash_hex)
else:
if logg.isEnabledFor(logging.INFO):
io_str = io.StringIO()
decode_for_puny_humans(o['params'][0], chain_spec, io_str)
print(io_str.getvalue())
else:
print(o['params'][0])
if __name__ == '__main__':
main()

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@ -1,6 +1,6 @@
[metadata]
name = chainlib
version = 0.0.2b1
version = 0.0.3a1
description = Generic blockchain access library and tooling
author = Louis Holbrook
author_email = dev@holbrook.no
@ -38,7 +38,6 @@ console_scripts =
eth-checksum = chainlib.eth.runnable.checksum:main
eth-gas = chainlib.eth.runnable.gas:main
eth-raw = chainlib.eth.runnable.raw:main
eth-transfer = chainlib.eth.runnable.transfer:main
eth-get = chainlib.eth.runnable.get:main
eth-decode = chainlib.eth.runnable.decode:main
eth-info = chainlib.eth.runnable.info:main

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@ -1,25 +0,0 @@
# standard imports
import os
# external imports
import pytest
from crypto_dev_signer.keystore.dict import DictKeystore
from crypto_dev_signer.eth.signer import ReferenceSigner as EIP155Signer
@pytest.fixture(scope='session')
def keystore():
ks = DictKeystore()
pk = os.urandom(32)
ks.import_raw_key(pk)
return ks
@pytest.fixture(scope='session')
def signer(
keystore,
):
s = EIP155Signer(keystore)
return s

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@ -1,74 +0,0 @@
# standard imports
import logging
import os
# external imports
from hexathon import (
strip_0x,
add_0x,
)
# local imports
from chainlib.eth.erc20 import ERC20
from chainlib.eth.address import to_checksum_address
from chainlib.eth.tx import (
unpack,
TxFormat,
)
from chainlib.eth.pytest import *
logg = logging.getLogger()
contract_address = to_checksum_address('0xdeadbeefdeadbeefdeadbeefdeadbeefdeadbeef')
benefactor_address = to_checksum_address('0xefdeadbeefdeadbeefdeadbeefdeadbeefdeadbe')
# TODO: use unittest instead
def test_erc20_balance(
default_chain_spec,
):
e = ERC20(default_chain_spec,)
holder_address = to_checksum_address('0xbeefdeadbeefdeadbeefdeadbeefdeadbeefdead')
o = e.balance_of(contract_address, holder_address)
assert len(o['params'][0]['data']) == 64 + 8 + 2
assert o['params'][0]['data'][:10] == add_0x('70a08231')
def test_erc20_decimals(
default_chain_spec,
):
e = ERC20(default_chain_spec)
o = e.decimals(contract_address)
assert o['params'][0]['data'] == add_0x('313ce567')
def test_erc20_transfer(
keystore,
signer,
default_chain_spec,
):
e = ERC20(default_chain_spec, signer=signer)
addresses = keystore.list()
(tx_hash_hex, o) = e.transfer(contract_address, addresses[0], benefactor_address, 1024)
def test_erc20_parse_transfer_request(
keystore,
signer,
default_chain_spec,
):
e = ERC20(default_chain_spec, signer=signer)
addresses = keystore.list()
(tx_hash_hex, o) = e.transfer(contract_address, addresses[0], benefactor_address, 1024, tx_format=TxFormat.RLP_SIGNED)
b = bytes.fromhex(strip_0x(o))
#chain_spec = ChainSpec('evm', 'foo', 1, 'bar')
tx = unpack(b, default_chain_spec)
r = ERC20.parse_transfer_request(tx['data'])
assert r[0] == benefactor_address
assert r[1] == 1024

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@ -73,10 +73,6 @@ class Mocket(socket.socket):
else:
tx = Mocket.tx
r = Mocket.signer.sign_transaction_to_rlp(tx)
#mock_sig = os.urandom(64)
#tx.r = mock_sig[:32]
#tx.s = mock_sig[32:]
#r = add_0x(tx.rlp_serialize().hex())
Mocket.tx = None
o = jsonrpc_response(Mocket.req_id, add_0x(r.hex()))
Mocket.req_id = None