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Add generic contract call/tx encoder tool

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This commit is contained in:
nolash 2021-10-06 06:57:51 +02:00
parent dbc046d946
commit 55a72ed6d6
Signed by: lash
GPG Key ID: 21D2E7BB88C2A746
7 changed files with 259 additions and 37 deletions
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219
chainlib/eth/runnable/encode.py Normal file
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@ -0,0 +1,219 @@
# SPDX-License-Identifier: GPL-3.0-or-later
# standard imports
import io
import sys
import os
import json
import argparse
import logging
import urllib
import re
import sha3
# external imports
import chainlib.eth.cli
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.constant import ZERO_ADDRESS
from chainlib.eth.address import to_checksum
from chainlib.eth.connection import EthHTTPConnection
from chainlib.jsonrpc import (
JSONRPCRequest,
IntSequenceGenerator,
)
from chainlib.eth.nonce import (
RPCNonceOracle,
OverrideNonceOracle,
)
from chainlib.eth.gas import (
RPCGasOracle,
OverrideGasOracle,
)
from chainlib.eth.tx import (
TxFactory,
TxFormat,
raw,
)
from chainlib.eth.contract import (
ABIMethodEncoder,
ABIContractEncoder,
ABIContractType,
)
from chainlib.error import SignerMissingException
from chainlib.chain import ChainSpec
from chainlib.eth.runnable.util import decode_for_puny_humans
from chainlib.eth.jsonrpc import to_blockheight_param
logging.basicConfig(level=logging.WARNING)
logg = logging.getLogger()
script_dir = os.path.dirname(os.path.realpath(__file__))
config_dir = os.path.join(script_dir, '..', 'data', 'config')
arg_flags = chainlib.eth.cli.argflag_std_write | chainlib.eth.cli.Flag.EXEC
argparser = chainlib.eth.cli.ArgumentParser(arg_flags)
argparser = chainlib.eth.cli.ArgumentParser(arg_flags)
argparser.add_argument('--signature', type=str, help='Method signature to encode')
argparser.add_argument('contract_args', type=str, nargs='*', help='arguments to encode')
args = argparser.parse_args()
config = chainlib.eth.cli.Config.from_args(args, arg_flags, default_config_dir=config_dir)
if not config.get('_EXEC_ADDRESS'):
argparser.error('exec address (-e) must be defined')
block_all = args.ww
block_last = args.w or block_all
wallet = chainlib.eth.cli.Wallet(EIP155Signer)
wallet.from_config(config)
rpc = chainlib.eth.cli.Rpc(wallet=wallet)
conn = rpc.connect_by_config(config)
send = config.true('_RPC_SEND')
chain_spec = None
try:
chain_spec = ChainSpec.from_chain_str(config.get('CHAIN_SPEC'))
except AttributeError:
pass
class CLIEncoder:
__re_uint = r'^([uU])[int]*([0-9]+)?$'
__re_bytes = r'^([bB])[ytes]*([0-9]+)?$'
__re_string = r'^([sS])[tring]*$'
__translations = [
'to_uint',
'to_bytes',
'to_string',
]
def to_uint(self, typ):
s = None
a = None
m = re.match(self.__re_uint, typ)
if m == None:
return None
n = m.group(2)
if m.group(2) == None:
n = 256
s = 'UINT256'.format(m.group(2))
a = getattr(ABIContractType, s)
return (s, a)
def to_bytes(self, typ):
s = None
a = None
m = re.match(self.__re_bytes, typ)
if m == None:
return None
n = m.group(2)
if n == None:
n = 32
s = 'BYTES{}'.format(n)
a = getattr(ABIContractType, s)
return (s, a)
def to_string(self, typ):
m = re.match(self.__re_string, typ)
if m == None:
return None
s = 'STRING'
a = getattr(ABIContractType, s)
return (s, a)
def translate_type(self, typ):
r = None
for tr in self.__translations:
r = getattr(self, tr)(typ)
if r != None:
break
if r == None:
raise ValueError('no translation for type {}'.format(typ))
logg.debug('type {} translated to {}'.format(typ, r[0]))
return r[1]
def main():
signer_address = ZERO_ADDRESS
signer = None
try:
signer = rpc.get_signer()
signer_address = rpc.get_signer_address()
except SignerMissingException:
pass
code = '0x'
cli_encoder = CLIEncoder()
contract_encoder = ABIContractEncoder()
if args.signature:
contract_encoder.method(args.signature)
for arg in args.contract_args:
logg.debug('arg {}'.format(arg))
(typ, val) = arg.split(':', maxsplit=1)
real_typ = cli_encoder.translate_type(typ)
contract_encoder.typ(real_typ)
fn = getattr(contract_encoder, real_typ.value)
fn(val)
code += contract_encoder.get()
if signer == None:
c = TxFactory(chain_spec)
j = JSONRPCRequest(id_generator=rpc.id_generator)
o = j.template()
o['method'] = 'eth_call'
o['params'].append({
'to': exec_address,
'from': signer_address,
'value': '0x00',
'gas': add_0x(int.to_bytes(8000000, 8, byteorder='big').hex()), # TODO: better get of network gas limit
'gasPrice': '0x01',
'data': add_0x(code),
})
height = to_blockheight_param(config.get('_HEIGHT'))
o['params'].append(height)
o = j.finalize(o)
r = conn.do(r)
try:
print(strip_0x(r))
return
except ValueError:
sys.stderr.write('query returned an empty value ({})\n'.format(r))
sys.exit(1)
if chain_spec == None:
raise ValueError('chain spec must be specified')
c = TxFactory(chain_spec, signer=signer, gas_oracle=rpc.get_gas_oracle(), nonce_oracle=rpc.get_nonce_oracle())
tx = c.template(signer_address, config.get('_EXEC_ADDRESS'), use_nonce=True)
tx = c.set_code(tx, code)
tx_format = TxFormat.JSONRPC
if config.get('_RAW'):
tx_format = TxFormat.RLP_SIGNED
(tx_hash_hex, o) = c.finalize(tx, tx_format=tx_format)
if send:
r = conn.do(r)
print(r)
else:
print(o)
if __name__ == '__main__':
main()

4
chainlib/eth/runnable/gas.py
View File

@ -80,7 +80,7 @@ def main():
if logg.isEnabledFor(logging.DEBUG):
try:
sender_balance = balance(signer_address, rpc.id_generator)
recipient_balance = balance(recipient, rpc.id_generator)
recipient_balance = balance(add_0x(recipient), rpc.id_generator)
logg.debug('sender {} balance before: {}'.format(signer_address, sender_balance))
logg.debug('recipient {} balance before: {}'.format(recipient, recipient_balance))
except urllib.error.URLError:
@ -94,7 +94,7 @@ def main():
r = conn.wait(tx_hash_hex)
if logg.isEnabledFor(logging.DEBUG):
sender_balance = balance(signer_address, rpc.id_generator)
recipient_balance = balance(recipient, rpc.id_generator)
recipient_balance = balance(add_0x(recipient), rpc.id_generator)
logg.debug('sender {} balance after: {}'.format(signer_address, sender_balance))
logg.debug('recipient {} balance after: {}'.format(recipient, recipient_balance))
if r['status'] == 0:

61
chainlib/eth/runnable/raw.py
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@ -50,6 +50,7 @@ config_dir = os.path.join(script_dir, '..', 'data', 'config')
arg_flags = chainlib.eth.cli.argflag_std_write | chainlib.eth.cli.Flag.EXEC
argparser = chainlib.eth.cli.ArgumentParser(arg_flags)
argparser.add_argument('--deploy', action='store_true', help='Deploy data as contract')
argparser.add_positional('data', type=str, help='Transaction data')
args = argparser.parse_args()
config = chainlib.eth.cli.Config.from_args(args, arg_flags, default_config_dir=config_dir)
@ -65,8 +66,8 @@ conn = rpc.connect_by_config(config)
send = config.true('_RPC_SEND')
if config.get('_EXEC_ADDRESS') != None:
send = False
#if config.get('_EXEC_ADDRESS') != None:
# send = False
chain_spec = None
try:
@ -83,34 +84,37 @@ def main():
except SignerMissingException:
pass
if config.get('_EXEC_ADDRESS') != None:
exec_address = add_0x(to_checksum(config.get('_EXEC_ADDRESS')))
if not args.u and exec_address != add_0x(exec_address):
raise ValueError('invalid checksum address')
if config.get('_EXEC_ADDRESS') != None or args.deploy:
exec_address = None
if config.get('_EXEC_ADDRESS') != None:
exec_address = add_0x(to_checksum(config.get('_EXEC_ADDRESS')))
#if not args.u and exec_address != add_0x(exec_address):
if not args.u and exec_address != exec_address:
raise ValueError('invalid checksum address')
j = JSONRPCRequest(id_generator=rpc.id_generator)
o = j.template()
o['method'] = 'eth_call'
o['params'].append({
'to': exec_address,
'from': signer_address,
'value': '0x00',
'gas': add_0x(int.to_bytes(8000000, 8, byteorder='big').hex()), # TODO: better get of network gas limit
'gasPrice': '0x01',
'data': add_0x(args.data),
})
height = to_blockheight_param(config.get('_HEIGHT'))
o['params'].append(height)
o = j.finalize(o)
r = conn.do(o)
try:
print(strip_0x(r))
except ValueError:
sys.stderr.write('query returned an empty value\n')
sys.exit(1)
return
if signer_address == None:
j = JSONRPCRequest(id_generator=rpc.id_generator)
o = j.template()
o['method'] = 'eth_call'
o['params'].append({
'to': exec_address,
'from': signer_address,
'value': '0x00',
'gas': add_0x(int.to_bytes(8000000, 8, byteorder='big').hex()), # TODO: better get of network gas limit
'gasPrice': '0x01',
'data': add_0x(args.data),
})
height = to_blockheight_param(config.get('_HEIGHT'))
o['params'].append(height)
o = j.finalize(o)
r = conn.do(o)
try:
print(strip_0x(r))
except ValueError:
sys.stderr.write('query returned an empty value ({})\n'.format(r))
sys.exit(1)
if signer_address != None:
else:
if chain_spec == None:
raise ValueError('chain spec must be specified')
g = TxFactory(chain_spec, signer=rpc.get_signer(), gas_oracle=rpc.get_gas_oracle(), nonce_oracle=rpc.get_nonce_oracle())
@ -125,7 +129,6 @@ def main():
print(r)
else:
print(o)
print(tx_hash_hex)
else:
o = raw(args.data, id_generator=rpc.id_generator)

1
chainlib/eth/tx.py
View File

@ -167,7 +167,6 @@ def __unpack_raw(tx_raw_bytes, chain_id=1):
s[32-len(d[8]):] = d[8]
logg.debug('vb {}'.format(vb))
sig = b''.join([r, s, bytes([vb])])
#so = KeyAPI.Signature(signature_bytes=sig)
h = sha3.keccak_256()
h.update(rlp_encode(d))

5
chainlib/eth/unittest/ethtester.py
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@ -26,7 +26,8 @@ from chainlib.connection import (
from chainlib.eth.address import to_checksum_address
from chainlib.chain import ChainSpec
logg = logging.getLogger(__name__)
#logg = logging.getLogger(__name__)
logg = logging.getLogger()
test_address = bytes.fromhex('Eb3907eCad74a0013c259D5874AE7f22DcBcC95C')
@ -63,6 +64,7 @@ class EthTesterCase(unittest.TestCase):
self.helper = eth_tester_instance
self.backend = self.helper.backend
self.rpc = TestRPCConnection(None, eth_tester_instance, self.signer)
for a in self.keystore.list():
self.accounts.append(add_0x(to_checksum_address(a)))
@ -75,6 +77,5 @@ class EthTesterCase(unittest.TestCase):
RPCConnection.register_location('custom', self.chain_spec, tag='signer', exist_ok=True)
def tearDown(self):
pass

4
requirements.txt
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@ -1,7 +1,7 @@
crypto-dev-signer>=0.4.15a4,<=0.4.15
crypto-dev-signer>=0.4.15rc2,<=0.4.15
pysha3==1.0.2
hexathon~=0.0.1a8
websocket-client==0.57.0
potaahto~=0.0.1a1
chainlib==0.0.9a10
chainlib==0.0.9a11
confini>=0.4.1a1,<0.5.0

2
setup.cfg
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@ -1,6 +1,6 @@
[metadata]
name = chainlib-eth
version = 0.0.9a13
version = 0.0.9a16
description = Ethereum implementation of the chainlib interface
author = Louis Holbrook
author_email = dev@holbrook.no