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Initial commit; receive all eth code from chainlib package

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__pycache__
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- 0.0.5-pending
* Receive all ethereum components from chainlib package

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The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.

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include *requirements.txt LICENSE

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# chainlib-eth
Ethereum implementation of the chainlib blockchain interface tooling
See https://gitlab.com/chaintool/chainlib for more information

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# third-party imports
import sha3
from hexathon import (
strip_0x,
uniform,
)
from crypto_dev_signer.encoding import (
is_address,
is_checksum_address,
to_checksum_address,
)
to_checksum = to_checksum_address

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# third-party imports
from chainlib.jsonrpc import JSONRPCRequest
from chainlib.eth.tx import Tx
from hexathon import (
add_0x,
strip_0x,
even,
)
def block_latest(id_generator=None):
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] = 'eth_blockNumber'
return j.finalize(o)
def block_by_hash(hsh, include_tx=True, id_generator=None):
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] = 'eth_getBlockByHash'
o['params'].append(hsh)
o['params'].append(include_tx)
return j.finalize(o)
def block_by_number(n, include_tx=True, id_generator=None):
nhx = add_0x(even(hex(n)[2:]))
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] = 'eth_getBlockByNumber'
o['params'].append(nhx)
o['params'].append(include_tx)
return j.finalize(o)
def transaction_count(block_hash, id_generator=None):
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] = 'eth_getBlockTransactionCountByHash'
o['params'].append(block_hash)
return j.finalize(o)
class Block:
def __init__(self, src):
self.hash = src['hash']
try:
self.number = int(strip_0x(src['number']), 16)
except TypeError:
self.number = int(src['number'])
self.txs = src['transactions']
self.block_src = src
try:
self.timestamp = int(strip_0x(src['timestamp']), 16)
except TypeError:
self.timestamp = int(src['timestamp'])
def src(self):
return self.block_src
def tx(self, i):
return Tx(self.txs[i], self)
def tx_src(self, i):
return self.txs[i]
def __str__(self):
return 'block {} {} ({} txs)'.format(self.number, self.hash, len(self.txs))
@staticmethod
def from_src(src):
return Block(src)

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from chainlib.jsonrpc import JSONRPCRequest
def network_id(id_generator=None):
j = JSONRPCRequest(id_generator=id_generator)
o = j.template()
o['method'] = 'net_version'
return j.finalize(o)

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# standard imports
import copy
import logging
import json
import datetime
import time
import socket
from urllib.request import (
Request,
urlopen,
)
# third-party imports
from hexathon import (
add_0x,
strip_0x,
)
# local imports
from .error import (
DefaultErrorParser,
RevertEthException,
)
from .sign import (
sign_transaction,
)
from chainlib.connection import (
ConnType,
RPCConnection,
JSONRPCHTTPConnection,
JSONRPCUnixConnection,
error_parser,
)
from chainlib.jsonrpc import (
JSONRPCRequest,
jsonrpc_result,
)
from chainlib.eth.tx import (
unpack,
)
logg = logging.getLogger(__name__)
class EthHTTPConnection(JSONRPCHTTPConnection):
def wait(self, tx_hash_hex, delay=0.5, timeout=0.0, error_parser=error_parser, id_generator=None):
t = datetime.datetime.utcnow()
i = 0
while True:
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] ='eth_getTransactionReceipt'
o['params'].append(add_0x(tx_hash_hex))
o = j.finalize(o)
req = Request(
self.location,
method='POST',
)
req.add_header('Content-Type', 'application/json')
data = json.dumps(o)
logg.debug('(HTTP) poll receipt attempt {} {}'.format(i, data))
res = urlopen(req, data=data.encode('utf-8'))
r = json.load(res)
e = jsonrpc_result(r, error_parser)
if e != None:
logg.debug('(HTTP) poll receipt completed {}'.format(r))
logg.debug('e {}'.format(strip_0x(e['status'])))
if strip_0x(e['status']) == '00':
raise RevertEthException(tx_hash_hex)
return e
if timeout > 0.0:
delta = (datetime.datetime.utcnow() - t) + datetime.timedelta(seconds=delay)
if delta.total_seconds() >= timeout:
raise TimeoutError(tx_hash)
time.sleep(delay)
i += 1
def check_rpc(self, id_generator=None):
j = JSONRPCRequest(id_generator)
req = j.template()
req['method'] = 'net_version'
req = j.finalize(req)
r = self.do(req)
class EthUnixConnection(JSONRPCUnixConnection):
def wait(self, tx_hash_hex, delay=0.5, timeout=0.0, error_parser=error_parser):
raise NotImplementedError('Not yet implemented for unix socket')
def sign_transaction_to_rlp(chain_spec, doer, tx):
txs = tx.serialize()
logg.debug('serializing {}'.format(txs))
# TODO: because some rpc servers may fail when chainId is included, we are forced to spend cpu here on this
chain_id = txs.get('chainId') or 1
if chain_spec != None:
chain_id = chain_spec.chain_id()
txs['chainId'] = add_0x(chain_id.to_bytes(2, 'big').hex())
txs['from'] = add_0x(tx.sender)
o = sign_transaction(txs)
r = doer(o)
logg.debug('sig got {}'.format(r))
return bytes.fromhex(strip_0x(r))
def sign_message(doer, msg):
o = sign_message(msg)
return doer(o)
class EthUnixSignerConnection(EthUnixConnection):
def sign_transaction_to_rlp(self, tx):
return sign_transaction_to_rlp(self.chain_spec, self.do, tx)
def sign_message(self, tx):
return sign_message(self.do, tx)
class EthHTTPSignerConnection(EthHTTPConnection):
def sign_transaction_to_rlp(self, tx):
return sign_transaction_to_rlp(self.chain_spec, self.do, tx)
def sign_message(self, tx):
return sign_message(self.do, tx)
RPCConnection.register_constructor(ConnType.HTTP, EthHTTPConnection, tag='eth_default')
RPCConnection.register_constructor(ConnType.HTTP_SSL, EthHTTPConnection, tag='eth_default')
RPCConnection.register_constructor(ConnType.UNIX, EthUnixConnection, tag='eth_default')

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ZERO_ADDRESS = '0x{:040x}'.format(0)
ZERO_CONTENT = '0x{:064x}'.format(0)
MINIMUM_FEE_UNITS = 21000
MINIMUM_FEE_PRICE = 1000000000
MAX_UINT = int('0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff', 16)

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# standard imports
import enum
import re
import logging
# external imports
from hexathon import (
strip_0x,
pad,
)
# local imports
from chainlib.hash import keccak256_string_to_hex
from chainlib.block import BlockSpec
from chainlib.jsonrpc import JSONRPCRequest
from .address import to_checksum_address
#logg = logging.getLogger(__name__)
logg = logging.getLogger()
re_method = r'^[a-zA-Z0-9_]+$'
class ABIContractType(enum.Enum):
BYTES32 = 'bytes32'
BYTES4 = 'bytes4'
UINT256 = 'uint256'
ADDRESS = 'address'
STRING = 'string'
BOOLEAN = 'bool'
dynamic_contract_types = [
ABIContractType.STRING,
]
class ABIContract:
def __init__(self):
self.types = []
self.contents = []
class ABIMethodEncoder(ABIContract):
def __init__(self):
super(ABIMethodEncoder, self).__init__()
self.method_name = None
self.method_contents = []
def method(self, m):
if re.match(re_method, m) == None:
raise ValueError('Invalid method {}, must match regular expression {}'.format(re_method))
self.method_name = m
self.__log_method()
def get_method(self):
if self.method_name == None:
return ''
return '{}({})'.format(self.method_name, ','.join(self.method_contents))
def typ(self, v):
if self.method_name == None:
raise AttributeError('method name must be set before adding types')
if not isinstance(v, ABIContractType):
raise TypeError('method type not valid; expected {}, got {}'.format(type(ABIContractType).__name__, type(v).__name__))
self.method_contents.append(v.value)
self.__log_method()
def __log_method(self):
logg.debug('method set to {}'.format(self.get_method()))
class ABIContractDecoder:
def typ(self, v):
if not isinstance(v, ABIContractType):
raise TypeError('method type not valid; expected {}, got {}'.format(type(ABIContractType).__name__, type(v).__name__))
self.types.append(v.value)
self.__log_typ()
def val(self, v):
self.contents.append(v)
logg.debug('content is now {}'.format(self.contents))
def uint256(self, v):
return int(v, 16)
def bytes32(self, v):
return v
def bool(self, v):
return bool(self.uint256(v))
def boolean(self, v):
return bool(self.uint256(v))
def address(self, v):
a = strip_0x(v)[64-40:]
return to_checksum_address(a)
def string(self, v):
s = strip_0x(v)
b = bytes.fromhex(s)
cursor = 0
offset = int.from_bytes(b[cursor:cursor+32], 'big')
cursor += 32
length = int.from_bytes(b[cursor:cursor+32], 'big')
cursor += 32
content = b[cursor:cursor+length]
logg.debug('parsing string offset {} length {} content {}'.format(offset, length, content))
return content.decode('utf-8')
def __log_typ(self):
logg.debug('types set to ({})'.format(','.join(self.types)))
def decode(self):
r = []
logg.debug('contents {}'.format(self.contents))
for i in range(len(self.types)):
m = getattr(self, self.types[i])
s = self.contents[i]
logg.debug('{} {} {} {} {}'.format(i, m, self.types[i], self.contents[i], s))
r.append(m(s.hex()))
return r
def get(self):
return self.decode()
def __str__(self):
return self.decode()
class ABIContractLogDecoder(ABIMethodEncoder, ABIContractDecoder):
def __init__(self):
super(ABIContractLogDecoder, self).__init__()
self.method_name = None
self.indexed_content = []
def topic(self, event):
self.method(event)
def get_method_signature(self):
s = self.get_method()
return keccak256_string_to_hex(s)
def typ(self, v):
super(ABIContractLogDecoder, self).typ(v)
self.types.append(v.value)
def apply(self, topics, data):
t = self.get_method_signature()
if topics[0] != t:
raise ValueError('topic mismatch')
for i in range(len(topics) - 1):
self.contents.append(topics[i+1])
self.contents += data
class ABIContractEncoder(ABIMethodEncoder):
def __log_latest(self, v):
l = len(self.types) - 1
logg.debug('Encoder added {} -> {} ({})'.format(v, self.contents[l], self.types[l].value))
def uint256(self, v):
v = int(v)
b = v.to_bytes(32, 'big')
self.contents.append(b.hex())
self.types.append(ABIContractType.UINT256)
self.__log_latest(v)
def bool(self, v):
return self.boolean(v)
def boolean(self, v):
if bool(v):
return self.uint256(1)
return self.uint256(0)
def address(self, v):
self.bytes_fixed(32, v, 20)
self.types.append(ABIContractType.ADDRESS)
self.__log_latest(v)
def bytes32(self, v):
self.bytes_fixed(32, v)
self.types.append(ABIContractType.BYTES32)
self.__log_latest(v)
def bytes4(self, v):
self.bytes_fixed(4, v)
self.types.append(ABIContractType.BYTES4)
self.__log_latest(v)
def string(self, v):
b = v.encode('utf-8')
l = len(b)
contents = l.to_bytes(32, 'big')
contents += b
padlen = 32 - (l % 32)
contents += padlen * b'\x00'
self.bytes_fixed(len(contents), contents)
self.types.append(ABIContractType.STRING)
self.__log_latest(v)
return contents
def bytes_fixed(self, mx, v, exact=0):
typ = type(v).__name__
if typ == 'str':
v = strip_0x(v)
l = len(v)
if exact > 0 and l != exact * 2:
raise ValueError('value wrong size; expected {}, got {})'.format(mx, l))
if l > mx * 2:
raise ValueError('value too long ({})'.format(l))
v = pad(v, mx)
elif typ == 'bytes':
l = len(v)
if exact > 0 and l != exact:
raise ValueError('value wrong size; expected {}, got {})'.format(mx, l))
b = bytearray(mx)
b[mx-l:] = v
v = pad(b.hex(), mx)
else:
raise ValueError('invalid input {}'.format(typ))
self.contents.append(v.ljust(64, '0'))
def get_method_signature(self):
s = self.get_method()
if s == '':
return s
return keccak256_string_to_hex(s)[:8]
def get_contents(self):
direct_contents = ''
pointer_contents = ''
l = len(self.types)
pointer_cursor = 32 * l
for i in range(l):
if self.types[i] in dynamic_contract_types:
content_length = len(self.contents[i])
pointer_contents += self.contents[i]
direct_contents += pointer_cursor.to_bytes(32, 'big').hex()
pointer_cursor += int(content_length / 2)
else:
direct_contents += self.contents[i]
s = ''.join(direct_contents + pointer_contents)
for i in range(0, len(s), 64):
l = len(s) - i
if l > 64:
l = 64
logg.debug('code word {} {}'.format(int(i / 64), s[i:i+64]))
return s
def get(self):
return self.encode()
def encode(self):
m = self.get_method_signature()
c = self.get_contents()
return m + c
def __str__(self):
return self.encode()
def abi_decode_single(typ, v):
d = ABIContractDecoder()
d.typ(typ)
d.val(v)
r = d.decode()
return r[0]
def code(address, block_spec=BlockSpec.LATEST, id_generator=None):
block_height = None
if block_spec == BlockSpec.LATEST:
block_height = 'latest'
elif block_spec == BlockSpec.PENDING:
block_height = 'pending'
else:
block_height = int(block_spec)
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] = 'eth_getCode'
o['params'].append(address)
o['params'].append(block_height)
return j.finalize(o)

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# local imports
from chainlib.error import ExecutionError
class EthException(Exception):
pass
class RevertEthException(EthException, ExecutionError):
pass
class NotFoundEthException(EthException):
pass
class RequestMismatchException(EthException):
pass
class DefaultErrorParser:
def translate(self, error):
return EthException('default parser code {}'.format(error))

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# standard imports
import logging
# third-party imports
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
from chainlib.jsonrpc import JSONRPCRequest
from chainlib.eth.tx import (
TxFactory,
TxFormat,
raw,
)
from chainlib.eth.constant import (
MINIMUM_FEE_UNITS,
)
logg = logging.getLogger(__name__)
def price(id_generator=None):
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] = 'eth_gasPrice'
return j.finalize(o)
def balance(address, id_generator=None):
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] = 'eth_getBalance'
o['params'].append(address)
o['params'].append('latest')
return j.finalize(o)
def parse_balance(balance):
try:
r = int(balance, 10)
except ValueError:
r = int(balance, 16)
return r
class Gas(TxFactory):
def create(self, sender_address, recipient_address, value, tx_format=TxFormat.JSONRPC, id_generator=None):
tx = self.template(sender_address, recipient_address, use_nonce=True)
tx['value'] = value
txe = EIP155Transaction(tx, tx['nonce'], tx['chainId'])
tx_raw = self.signer.sign_transaction_to_rlp(txe)
tx_raw_hex = add_0x(tx_raw.hex())
tx_hash_hex = add_0x(keccak256_hex_to_hex(tx_raw_hex))
o = None
if tx_format == TxFormat.JSONRPC:
o = raw(tx_raw_hex, id_generator=id_generator)
elif tx_format == TxFormat.RLP_SIGNED:
o = tx_raw_hex
return (tx_hash_hex, o)
class RPCGasOracle:
def __init__(self, conn, code_callback=None, min_price=1, id_generator=None):
self.conn = conn
self.code_callback = code_callback
self.min_price = min_price
self.id_generator = id_generator
def get_gas(self, code=None):
gas_price = 0
if self.conn != None:
o = price(id_generator=self.id_generator)
r = self.conn.do(o)
n = strip_0x(r)
gas_price = int(n, 16)
fee_units = MINIMUM_FEE_UNITS
if self.code_callback != None:
fee_units = self.code_callback(code)
if gas_price < self.min_price:
logg.debug('adjusting price {} to set minimum {}'.format(gas_price, self.min_price))
gas_price = self.min_price
return (gas_price, fee_units)
class RPCPureGasOracle(RPCGasOracle):
def __init__(self, conn, code_callback=None, id_generator=None):
super(RPCPureGasOracle, self).__init__(conn, code_callback=code_callback, min_price=0, id_generator=id_generator)
class OverrideGasOracle(RPCGasOracle):
def __init__(self, price=None, limit=None, conn=None, code_callback=None, id_generator=None):
self.conn = None
self.code_callback = None
self.limit = limit
self.price = price
price_conn = None
if self.limit == None or self.price == None:
if self.price == None:
price_conn = conn
logg.debug('override gas oracle with rpc fallback; price {} limit {}'.format(self.price, self.limit))
super(OverrideGasOracle, self).__init__(price_conn, code_callback, id_generator=id_generator)
def get_gas(self, code=None):
r = None
fee_units = None
fee_price = None
rpc_results = super(OverrideGasOracle, self).get_gas(code)
if self.limit != None:
fee_units = self.limit
if self.price != None:
fee_price = self.price
if fee_price == None:
if rpc_results != None:
fee_price = rpc_results[0]
logg.debug('override gas oracle without explicit price, setting from rpc {}'.format(fee_price))
else:
fee_price = MINIMUM_FEE_PRICE
logg.debug('override gas oracle without explicit price, setting default {}'.format(fee_price))
if fee_units == None:
if rpc_results != None:
fee_units = rpc_results[1]
logg.debug('override gas oracle without explicit limit, setting from rpc {}'.format(fee_units))
else:
fee_units = MINIMUM_FEE_UNITS
logg.debug('override gas oracle without explicit limit, setting default {}'.format(fee_units))
return (fee_price, fee_units)
DefaultGasOracle = RPCGasOracle

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# proposed custom errors
# source: https://eth.wiki/json-rpc/json-rpc-error-codes-improvement-proposal
#1 Unauthorized Should be used when some action is not authorized, e.g. sending from a locked account.
#2 Action not allowed Should be used when some action is not allowed, e.g. preventing an action, while another depending action is processing on, like sending again when a confirmation popup is shown to the user (?).
#3 Execution error Will contain a subset of custom errors in the data field. See below.
#100 X doesn’t exist Should be used when something which should be there is not found. (Doesn’t apply to eth_getTransactionBy_ and eth_getBlock_. They return a success with value null)
#101 Requires ether Should be used for actions which require somethin else, e.g. gas or a value.
#102 Gas too low Should be used when a to low value of gas was given.
#103 Gas limit exceeded Should be used when a limit is exceeded, e.g. for the gas limit in a block.
#104 Rejected Should be used when an action was rejected, e.g. because of its content (too long contract code, containing wrong characters ?, should differ from -32602 - Invalid params).
#105 Ether too low Should be used when a to low value of Ether was given.
#106 Timeout Should be used when an action timedout.
#107 Conflict Should be used when an action conflicts with another (ongoing?) action.

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# external imports
import sha3
class LogBloom:
def __init__(self):
self.content = bytearray(256)
def add(self, element):
if not isinstance(element, bytes):
raise ValueError('element must be bytes')
h = sha3.keccak_256()
h.update(element)
z = h.digest()
for j in range(3):
c = j * 2
v = int.from_bytes(z[c:c+2], byteorder='big')
v &= 0x07ff
m = 255 - int(v / 8)
n = v % 8
self.content[m] |= (1 << n)

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# third-party imports
from hexathon import (
add_0x,
strip_0x,
)
# local imports
from chainlib.jsonrpc import JSONRPCRequest
def nonce(address, id_generator=None):
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] = 'eth_getTransactionCount'
o['params'].append(address)
o['params'].append('pending')
return j.finalize(o)
class NonceOracle:
def __init__(self, address, id_generator=None):
self.address = address
self.id_generator = id_generator
self.nonce = self.get_nonce()
def get_nonce(self):
raise NotImplementedError('Class must be extended')
def next_nonce(self):
n = self.nonce
self.nonce += 1
return n
class RPCNonceOracle(NonceOracle):
def __init__(self, address, conn, id_generator=None):
self.conn = conn
super(RPCNonceOracle, self).__init__(address, id_generator=id_generator)
def get_nonce(self):
o = nonce(self.address, id_generator=self.id_generator)
r = self.conn.do(o)
n = strip_0x(r)
return int(n, 16)
class OverrideNonceOracle(NonceOracle):
def __init__(self, address, nonce):
self.nonce = nonce
super(OverrideNonceOracle, self).__init__(address)
def get_nonce(self):
return self.nonce
DefaultNonceOracle = RPCNonceOracle

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from .fixtures_ethtester import *
from .fixtures_chain import *
from .fixtures_signer import *

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# external imports
import pytest
# local imports
from chainlib.chain import ChainSpec
@pytest.fixture(scope='session')
def default_chain_spec():
return ChainSpec('evm', 'foo', 42)
@pytest.fixture(scope='session')
def default_chain_config():
return {
'foo': 42,
}

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chainlib/eth/pytest/fixtures_ethtester.py Normal file
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# standard imports
import os
import logging
# external imports
import eth_tester
import pytest
from crypto_dev_signer.eth.signer import ReferenceSigner as EIP155Signer
from crypto_dev_signer.keystore.dict import DictKeystore
# local imports
from chainlib.eth.unittest.base import *
from chainlib.connection import (
RPCConnection,
ConnType,
)
from chainlib.eth.unittest.ethtester import create_tester_signer
from chainlib.eth.address import to_checksum_address
logg = logging.getLogger() #__name__)
@pytest.fixture(scope='function')
def eth_keystore():
return DictKeystore()
@pytest.fixture(scope='function')
def init_eth_tester(
eth_keystore,
):
return create_tester_signer(eth_keystore)
@pytest.fixture(scope='function')
def call_sender(
eth_accounts,
):
return eth_accounts[0]
#
#
#@pytest.fixture(scope='function')
#def eth_signer(
# init_eth_tester,
# ):
# return init_eth_tester
@pytest.fixture(scope='function')
def eth_rpc(
default_chain_spec,
init_eth_rpc,
):
return RPCConnection.connect(default_chain_spec, 'default')
@pytest.fixture(scope='function')
def eth_accounts(
init_eth_tester,
):
addresses = list(init_eth_tester.get_accounts())
for address in addresses:
balance = init_eth_tester.get_balance(address)
logg.debug('prefilled account {} balance {}'.format(address, balance))
return addresses
@pytest.fixture(scope='function')
def eth_empty_accounts(
eth_keystore,
init_eth_tester,
):
a = []
for i in range(10):
#address = init_eth_tester.new_account()
address = eth_keystore.new()
checksum_address = add_0x(to_checksum_address(address))
a.append(checksum_address)
logg.info('added address {}'.format(checksum_address))
return a
@pytest.fixture(scope='function')
def eth_signer(
eth_keystore,
):
return EIP155Signer(eth_keystore)
@pytest.fixture(scope='function')
def init_eth_rpc(
default_chain_spec,
init_eth_tester,
eth_signer,
):
rpc_conn = TestRPCConnection(None, init_eth_tester, eth_signer)
def rpc_with_tester(url=None, chain_spec=default_chain_spec):
return rpc_conn
RPCConnection.register_constructor(ConnType.CUSTOM, rpc_with_tester, tag='default')
RPCConnection.register_constructor(ConnType.CUSTOM, rpc_with_tester, tag='signer')
RPCConnection.register_location('custom', default_chain_spec, tag='default', exist_ok=True)
RPCConnection.register_location('custom', default_chain_spec, tag='signer', exist_ok=True)
return None

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chainlib/eth/pytest/fixtures_signer.py Normal file
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# standard imports
#import os
# external imports
import pytest
#from crypto_dev_signer.eth.signer import ReferenceSigner as EIP155Signer
@pytest.fixture(scope='function')
def agent_roles(
eth_accounts,
):
return {
'ALICE': eth_accounts[20],
'BOB': eth_accounts[21],
'CAROL': eth_accounts[23],
'DAVE': eth_accounts[24],
}

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chainlib/eth/runnable/__init__.py Normal file
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#!python3
"""Token balance query script
.. 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 hexathon import (
add_0x,
strip_0x,
even,
)
import sha3
from eth_abi import encode_single
# local imports
from chainlib.eth.address import to_checksum
from chainlib.jsonrpc import (
jsonrpc_result,
IntSequenceGenerator,
)
from chainlib.eth.connection import EthHTTPConnection
from chainlib.eth.gas import (
OverrideGasOracle,
balance,
)
from chainlib.chain import ChainSpec
logging.basicConfig(level=logging.WARNING)
logg = logging.getLogger()
default_eth_provider = os.environ.get('RPC_PROVIDER')
if default_eth_provider == 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('-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('--seq', action='store_true', help='Use sequential rpc ids')
argparser.add_argument('-v', action='store_true', help='Be verbose')
argparser.add_argument('-vv', action='store_true', help='Be more verbose')
argparser.add_argument('address', type=str, help='Account address')
args = argparser.parse_args()
if args.vv:
logg.setLevel(logging.DEBUG)
elif args.v:
logg.setLevel(logging.INFO)
rpc_id_generator = None
if args.seq:
rpc_id_generator = IntSequenceGenerator()
auth = None
if os.environ.get('RPC_AUTHENTICATION') == 'basic':
from chainlib.auth import BasicAuth
auth = BasicAuth(os.environ['RPC_USERNAME'], os.environ['RPC_PASSWORD'])
conn = EthHTTPConnection(args.p, auth=auth)
gas_oracle = OverrideGasOracle(conn)
address = to_checksum(args.address)
if not args.u and address != add_0x(args.address):
raise ValueError('invalid checksum address')
chain_spec = ChainSpec.from_chain_str(args.i)
def main():
r = None
decimals = 18
o = balance(address, id_generator=rpc_id_generator)
r = conn.do(o)
hx = strip_0x(r)
balance_value = int(hx, 16)
logg.debug('balance {} = {} decimals {}'.format(even(hx), balance_value, decimals))
balance_str = str(balance_value)
balance_len = len(balance_str)
if balance_len < decimals + 1:
print('0.{}'.format(balance_str.zfill(decimals)))
else:
offset = balance_len-decimals
print('{}.{}'.format(balance_str[:offset],balance_str[offset:]))
if __name__ == '__main__':
main()

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# standard imports
import sys
import select
# external imports
from hexathon import strip_0x
# local imports
from chainlib.eth.address import to_checksum_address
v = None
if len(sys.argv) > 1:
v = sys.argv[1]
else:
h = select.select([sys.stdin], [], [], 0)
if len(h[0]) > 0:
v = h[0][0].read()
v = v.rstrip()
if v == None:
sys.stderr.write('input missing\n')
sys.exit(1)
def main():
try:
print(to_checksum_address(strip_0x(v)))
except ValueError as e:
sys.stderr.write('invalid input: {}\n'.format(e))
sys.exit(1)
if __name__ == '__main__':
main()

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chainlib/eth/runnable/count.py Normal file
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# SPDX-License-Identifier: GPL-3.0-or-later
# standard imports
import sys
import os
import json
import argparse
import logging
import select
# local imports
from chainlib.eth.address import to_checksum
from chainlib.eth.connection import EthHTTPConnection
from chainlib.eth.tx import count
from chainlib.chain import ChainSpec
from chainlib.jsonrpc import IntSequenceGenerator
from crypto_dev_signer.keystore.dict import DictKeystore
from crypto_dev_signer.eth.signer import ReferenceSigner as EIP155Signer
from hexathon import add_0x
logging.basicConfig(level=logging.WARNING)
logg = logging.getLogger()
default_eth_provider = os.environ.get('RPC_PROVIDER')
if default_eth_provider == None:
default_eth_provider = os.environ.get('ETH_PROVIDER', 'http://localhost:8545')
def stdin_arg():
h = select.select([sys.stdin], [], [], 0)
if len(h[0]) > 0:
v = h[0][0].read()
return v.rstrip()
return None
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('-i', '--chain-spec', dest='i', type=str, default='evm:ethereum:1', help='Chain specification string')
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('--seq', action='store_true', help='Use sequential rpc ids')
argparser.add_argument('-v', action='store_true', help='Be verbose')
argparser.add_argument('-vv', action='store_true', help='Be more verbose')
argparser.add_argument('address', nargs='?', type=str, default=stdin_arg(), help='Ethereum address of recipient')
args = argparser.parse_args()
if args.address == None:
argparser.error('need first positional argument or value from stdin')
if args.vv:
logg.setLevel(logging.DEBUG)
elif args.v:
logg.setLevel(logging.INFO)
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, passphrase)
logg.debug('now have key for signer address {}'.format(signer_address))
signer = EIP155Signer(keystore)
rpc_id_generator = None
if args.seq:
rpc_id_generator = IntSequenceGenerator()
auth = None
if os.environ.get('RPC_AUTHENTICATION') == 'basic':
from chainlib.auth import BasicAuth
auth = BasicAuth(os.environ['RPC_USERNAME'], os.environ['RPC_PASSWORD'])
rpc = EthHTTPConnection(args.p, auth=auth)
def main():
recipient = to_checksum(args.address)
if not args.u and recipient != add_0x(args.address):
raise ValueError('invalid checksum address')
o = count(recipient, id_generator=rpc_id_generator)
r = rpc.do(o)
count_result = None
try:
count_result = int(r, 16)
except ValueError:
count_result = int(r, 10)
print(count_result)
if __name__ == '__main__':
main()

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#!python3
"""Decode raw 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
# local imports
from chainlib.eth.runnable.util import decode_for_puny_humans
logging.basicConfig(level=logging.WARNING)
logg = logging.getLogger()
def stdin_arg(t=0):
h = select.select([sys.stdin], [], [], t)
if len(h[0]) > 0:
v = h[0][0].read()
return v.rstrip()
return None
argparser = argparse.ArgumentParser()
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
logg.debug('txxxx {}'.format(args.tx))
if argp == None:
argp = stdin_arg(t=3)
if argp == None:
argparser.error('need first positional argument or value from stdin')
chain_spec = ChainSpec.from_chain_str(args.i)
def main():
tx_raw = argp
decode_for_puny_humans(tx_raw, chain_spec, sys.stdout)
if __name__ == '__main__':
main()

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chainlib/eth/runnable/gas.py Normal file
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#!python3
"""Gas transfer script
.. moduleauthor:: Louis Holbrook <dev@holbrook.no>
.. pgp:: 0826EDA1702D1E87C6E2875121D2E7BB88C2A746
"""
# SPDX-License-Identifier: GPL-3.0-or-later
# standard imports
import io
import sys
import os
import json
import argparse
import logging
import urllib
# external 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.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,
Gas,
)
from chainlib.eth.gas import balance as gas_balance
from chainlib.chain import ChainSpec
from chainlib.eth.runnable.util import decode_for_puny_humans
logging.basicConfig(level=logging.WARNING)
logg = logging.getLogger()
default_eth_provider = os.environ.get('RPC_PROVIDER')
if default_eth_provider == 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('-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('-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('--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('-u', '--unsafe', dest='u', action='store_true', help='Auto-convert address to checksum adddress')
argparser.add_argument('--seq', action='store_true', help='Use sequential rpc ids')
argparser.add_argument('-v', action='store_true', help='Be verbose')
argparser.add_argument('-vv', action='store_true', help='Be more verbose')
argparser.add_argument('-s', '--send', dest='s', action='store_true', help='Send to network')
argparser.add_argument('recipient', type=str, help='ethereum address of recipient')
argparser.add_argument('amount', type=int, help='gas value in wei')
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)
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)
rpc_id_generator = None
if args.seq:
rpc_id_generator = IntSequenceGenerator()
auth = None
if os.environ.get('RPC_AUTHENTICATION') == 'basic':
from chainlib.auth import BasicAuth
auth = BasicAuth(os.environ['RPC_USERNAME'], os.environ['RPC_PASSWORD'])
conn = EthHTTPConnection(args.p, auth=auth)
nonce_oracle = None
if args.nonce != None:
nonce_oracle = OverrideNonceOracle(signer_address, args.nonce, id_generator=rpc_id_generator)
else:
nonce_oracle = RPCNonceOracle(signer_address, conn, id_generator=rpc_id_generator)
gas_oracle = None
if args.gas_price or args.gas_limit != None:
gas_oracle = OverrideGasOracle(price=args.gas_price, limit=args.gas_limit, conn=conn, id_generator=rpc_id_generator)
else:
gas_oracle = RPCGasOracle(conn, id_generator=rpc_id_generator)
chain_spec = ChainSpec.from_chain_str(args.i)
value = args.amount
send = args.s
g = Gas(chain_spec, signer=signer, gas_oracle=gas_oracle, nonce_oracle=nonce_oracle)
def balance(address, id_generator):
o = gas_balance(address, id_generator=id_generator)
r = conn.do(o)
hx = strip_0x(r)
return int(hx, 16)
def main():
recipient = to_checksum(args.recipient)
if not args.u and recipient != add_0x(args.recipient):
raise ValueError('invalid checksum address')
logg.info('gas transfer from {} to {} value {}'.format(signer_address, recipient, value))
if logg.isEnabledFor(logging.DEBUG):
try:
sender_balance = balance(signer_address, rpc_id_generator)
recipient_balance = balance(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:
pass
(tx_hash_hex, o) = g.create(signer_address, recipient, value, id_generator=rpc_id_generator)
if send:
conn.do(o)
if block_last:
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)
logg.debug('sender {} balance after: {}'.format(signer_address, sender_balance))
logg.debug('recipient {} balance after: {}'.format(recipient, recipient_balance))
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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chainlib/eth/runnable/get.py Normal file
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#!python3
"""Data retrieval script
.. 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 enum
import select
# external imports
from hexathon import (
add_0x,
strip_0x,
)
import sha3
# local imports
from chainlib.eth.address import to_checksum
from chainlib.jsonrpc import (
JSONRPCRequest,
jsonrpc_result,
IntSequenceGenerator,
)
from chainlib.eth.connection import EthHTTPConnection
from chainlib.eth.tx import (
Tx,
pack,
)
from chainlib.eth.address import to_checksum_address
from chainlib.eth.block import Block
from chainlib.chain import ChainSpec
from chainlib.status import Status
from chainlib.eth.runnable.util import decode_for_puny_humans
logging.basicConfig(level=logging.WARNING, format='%(asctime)s %(levelname)s %(filename)s:%(lineno)d %(message)s')
logg = logging.getLogger()
default_eth_provider = os.environ.get('RPC_PROVIDER')
if default_eth_provider == None:
default_eth_provider = os.environ.get('ETH_PROVIDER', 'http://localhost:8545')
def stdin_arg(t=0):
h = select.select([sys.stdin], [], [], t)
if len(h[0]) > 0:
v = h[0][0].read()
return v.rstrip()
return None
argparser = argparse.ArgumentParser('eth-get', description='display information about an Ethereum address or transaction', epilog='address/transaction can be provided as an argument or from standard input')
argparser.add_argument('-p', '--provider', dest='p', default=default_eth_provider, type=str, help='Web3 provider url (http only)')
argparser.add_argument('-i', '--chain-spec', dest='i', type=str, default='evm:ethereum:1', help='Chain specification string')
argparser.add_argument('--rlp', action='store_true', help='Display transaction as raw rlp')
argparser.add_argument('--seq', action='store_true', help='Use sequential rpc ids')
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')
argparser.add_argument('-vv', action='store_true', help='Be more verbose')
argparser.add_argument('item', nargs='?', default=stdin_arg(), type=str, help='Item to get information for (address og transaction)')
args = argparser.parse_args()
if args.vv:
logg.setLevel(logging.DEBUG)
elif args.v:
logg.setLevel(logging.INFO)
argp = args.item
if argp == None:
argp = stdin_arg(None)
if argsp == None:
argparser.error('need first positional argument or value from stdin')
rpc_id_generator = None
if args.seq:
rpc_id_generator = IntSequenceGenerator()
auth = None
if os.environ.get('RPC_AUTHENTICATION') == 'basic':
from chainlib.auth import BasicAuth
auth = BasicAuth(os.environ['RPC_USERNAME'], os.environ['RPC_PASSWORD'])
conn = EthHTTPConnection(args.p, auth=auth)
chain_spec = ChainSpec.from_chain_str(args.i)
item = add_0x(args.item)
as_rlp = bool(args.rlp)
def get_transaction(conn, tx_hash, id_generator):
j = JSONRPCRequest(id_generator=id_generator)
o = j.template()
o['method'] = 'eth_getTransactionByHash'
o['params'].append(tx_hash)
o = j.finalize(o)
tx_src = conn.do(o)
if tx_src == None:
logg.error('Transaction {} not found'.format(tx_hash))
sys.exit(1)
if as_rlp:
tx_src = Tx.src_normalize(tx_src)
return pack(tx_src, chain_spec).hex()
tx = None
status = -1
rcpt = None
o = j.template()
o['method'] = 'eth_getTransactionReceipt'
o['params'].append(tx_hash)
o = j.finalize(o)
rcpt = conn.do(o)
#status = int(strip_0x(rcpt['status']), 16)
if tx == None:
tx = Tx(tx_src)
if rcpt != None:
tx.apply_receipt(rcpt)
tx.generate_wire(chain_spec)
return tx
def get_address(conn, address, id_generator):
j = JSONRPCRequest(id_generator=id_generator)
o = j.template()
o['method'] = 'eth_getCode'
o['params'].append(address)
o['params'].append('latest')
o = j.finalize(o)
code = conn.do(o)
content = strip_0x(code, allow_empty=True)
if len(content) == 0:
return None
return content
def main():
r = None
if len(item) > 42:
r = get_transaction(conn, item, rpc_id_generator).to_human()
elif args.u or to_checksum_address(item):
r = get_address(conn, item, rpc_id_generator)
print(r)
if __name__ == '__main__':
main()

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#!python3
"""Token balance query script
.. moduleauthor:: Louis Holbrook <dev@holbrook.no>
.. pgp:: 0826EDA1702D1E87C6E2875121D2E7BB88C2A746
"""
# SPDX-License-Identifier: GPL-3.0-or-later
# standard imports
import datetime
import sys
import os
import json
import argparse
import logging
# third-party imports
from hexathon import (
add_0x,
strip_0x,
even,
)
import sha3
from eth_abi import encode_single
# local imports
from chainlib.eth.address import (
to_checksum_address,
is_checksum_address,
)
from chainlib.eth.chain import network_id
from chainlib.eth.block import (
block_latest,
block_by_number,
Block,
)
from chainlib.eth.tx import count
from chainlib.eth.connection import EthHTTPConnection
from chainlib.eth.gas import (
OverrideGasOracle,
balance,
price,
)
from chainlib.jsonrpc import (
IntSequenceGenerator,
)
from chainlib.chain import ChainSpec
BLOCK_SAMPLES = 10
logging.basicConfig(level=logging.WARNING)
logg = logging.getLogger()
default_eth_provider = os.environ.get('RPC_PROVIDER')
if default_eth_provider == 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('-i', '--chain-spec', dest='i', type=str, default='evm:ethereum:1', help='Chain specification string')
argparser.add_argument('-H', '--human', dest='human', action='store_true', help='Use human-friendly formatting')
argparser.add_argument('-u', '--unsafe', dest='u', action='store_true', help='Auto-convert address to checksum adddress')
argparser.add_argument('-l', '--long', dest='l', action='store_true', help='Calculate averages through sampling of blocks and txs')
argparser.add_argument('-v', action='store_true', help='Be verbose')
argparser.add_argument('--seq', action='store_true', help='Use sequential rpc ids')
argparser.add_argument('-vv', action='store_true', help='Be more verbose')
argparser.add_argument('-y', '--key-file', dest='y', type=str, help='Include summary for keyfile')
argparser.add_argument('address', nargs='?', type=str, help='Include summary for address (conflicts with -y)')
args = argparser.parse_args()
if args.vv:
logg.setLevel(logging.DEBUG)
elif args.v:
logg.setLevel(logging.INFO)
signer = None
holder_address = None
if args.address != None:
if not args.u and not is_checksum_address(args.address):
raise ValueError('invalid checksum address {}'.format(args.address))
holder_address = add_0x(args.address)
elif args.y != None:
f = open(args.y, 'r')
o = json.load(f)
f.close()
holder_address = add_0x(to_checksum_address(o['address']))
rpc_id_generator = None
if args.seq:
rpc_id_generator = IntSequenceGenerator()
auth = None
if os.environ.get('RPC_AUTHENTICATION') == 'basic':
from chainlib.auth import BasicAuth
auth = BasicAuth(os.environ['RPC_USERNAME'], os.environ['RPC_PASSWORD'])
conn = EthHTTPConnection(args.p, auth=auth)
gas_oracle = OverrideGasOracle(conn)
token_symbol = 'eth'
chain_spec = ChainSpec.from_chain_str(args.i)
human = args.human
longmode = args.l
def main():
o = network_id(id_generator=rpc_id_generator)
r = conn.do(o)
#if human:
# n = format(n, ',')
sys.stdout.write('Network id: {}\n'.format(r))
o = block_latest(id_generator=rpc_id_generator)
r = conn.do(o)
n = int(r, 16)
first_block_number = n
if human:
n = format(n, ',')
sys.stdout.write('Block: {}\n'.format(n))
o = block_by_number(first_block_number, False, id_generator=rpc_id_generator)
r = conn.do(o)
last_block = Block(r)
last_timestamp = last_block.timestamp
if longmode:
aggr_time = 0.0
aggr_gas = 0
for i in range(BLOCK_SAMPLES):
o = block_by_number(first_block_number-i, False, id_generator=rpc_id_generator)
r = conn.do(o)
block = Block(r)
aggr_time += last_block.timestamp - block.timestamp
gas_limit = int(r['gasLimit'], 16)
aggr_gas += gas_limit
last_block = block
last_timestamp = block.timestamp
n = int(aggr_gas / BLOCK_SAMPLES)
if human:
n = format(n, ',')
sys.stdout.write('Gaslimit: {}\n'.format(n))
sys.stdout.write('Blocktime: {}\n'.format(aggr_time / BLOCK_SAMPLES))
o = price(id_generator=rpc_id_generator)
r = conn.do(o)
n = int(r, 16)
if human:
n = format(n, ',')
sys.stdout.write('Gasprice: {}\n'.format(n))
if holder_address != None:
o = count(holder_address)
r = conn.do(o)
n = int(r, 16)
sys.stdout.write('Address: {}\n'.format(holder_address))
sys.stdout.write('Nonce: {}\n'.format(n))
if __name__ == '__main__':
main()

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chainlib/eth/runnable/raw.py Normal file
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#!python3
"""Gas transfer script
.. moduleauthor:: Louis Holbrook <dev@holbrook.no>
.. pgp:: 0826EDA1702D1E87C6E2875121D2E7BB88C2A746
"""
# SPDX-License-Identifier: GPL-3.0-or-later
# standard imports
import io
import sys
import os
import json
import argparse
import logging
import urllib
# external 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.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,
raw,
)
from chainlib.chain import ChainSpec
from chainlib.eth.runnable.util import decode_for_puny_humans
logging.basicConfig(level=logging.WARNING)
logg = logging.getLogger()
default_eth_provider = os.environ.get('RPC_PROVIDER')
if default_eth_provider == 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('-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('-y', '--key-file', dest='y', type=str, help='Ethereum keystore file to use for signing')
argparser.add_argument('-u', '--unsafe', dest='u', action='store_true', help='Auto-convert address to checksum adddress')
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('--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('-a', '--recipient', dest='a', type=str, help='recipient address (None for contract creation)')
argparser.add_argument('-value', type=int, help='gas value of transaction in wei')
argparser.add_argument('--seq', action='store_true', help='Use sequential rpc ids')
argparser.add_argument('-v', action='store_true', help='Be verbose')
argparser.add_argument('-vv', action='store_true', help='Be more verbose')
argparser.add_argument('-s', '--send', dest='s', action='store_true', help='Send to network')
argparser.add_argument('-l', '--local', dest='l', action='store_true', help='Local contract call')
argparser.add_argument('data', nargs='?', type=str, help='Transaction data')
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)
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)
rpc_id_generator = None
if args.seq:
rpc_id_generator = IntSequenceGenerator()
auth = None
if os.environ.get('RPC_AUTHENTICATION') == 'basic':
from chainlib.auth import BasicAuth
auth = BasicAuth(os.environ['RPC_USERNAME'], os.environ['RPC_PASSWORD'])
conn = EthHTTPConnection(args.p, auth=auth)
send = args.s
local = args.l
if local:
send = False
nonce_oracle = None
gas_oracle = None
if signer_address != None and not local:
if args.nonce != None:
nonce_oracle = OverrideNonceOracle(signer_address, args.nonce)
else:
nonce_oracle = RPCNonceOracle(signer_address, conn)
if args.gas_price or args.gas_limit != None:
gas_oracle = OverrideGasOracle(price=args.gas_price, limit=args.gas_limit, conn=conn, id_generator=rpc_id_generator)
else:
gas_oracle = RPCGasOracle(conn, id_generator=rpc_id_generator)
chain_spec = ChainSpec.from_chain_str(args.i)
value = args.value
g = TxFactory(chain_spec, signer=signer, gas_oracle=gas_oracle, nonce_oracle=nonce_oracle)
def main():
recipient = None
if args.a != None:
recipient = add_0x(to_checksum(args.a))
if not args.u and recipient != add_0x(recipient):
raise ValueError('invalid checksum address')
if local:
j = JSONRPCRequest(id_generator=rpc_id_generator)
o = j.template()
o['method'] = 'eth_call'
o['params'].append({
'to': recipient,
'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),
})
o['params'].append('latest')
o = j.finalize(o)
r = conn.do(o)
print(strip_0x(r))
return
elif signer_address != None:
tx = g.template(signer_address, recipient, use_nonce=True)
if args.data != None:
tx = g.set_code(tx, add_0x(args.data))
(tx_hash_hex, o) = g.finalize(tx, id_generator=rpc_id_generator)
if send:
r = conn.do(o)
print(r)
else:
print(o)
print(tx_hash_hex)
else:
o = raw(args.data, id_generator=rpc_id_generator)
if send:
r = conn.do(o)
print(r)
else:
print(o)
if __name__ == '__main__':
main()

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chainlib/eth/runnable/subscribe.py Normal file
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import json
import websocket
ws = websocket.create_connection('ws://localhost:8545')
o = {
"jsonrpc": "2.0",
"method": "eth_subscribe",
"params": [
"newHeads",
],
"id": 0,
}
ws.send(json.dumps(o).encode('utf-8'))
while True:
print(ws.recv())
ws.close()

31
chainlib/eth/runnable/util.py Normal file
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# local imports
from chainlib.eth.tx import unpack
from hexathon import (
strip_0x,
add_0x,
)
def decode_out(tx, writer, skip_keys=[]):
for k in tx.keys():
if k in skip_keys:
continue
x = None
if k == 'value':
x = '{:.18f} eth'.format(tx[k] / (10**18))
elif k == 'gasPrice':
x = '{} gwei'.format(int(tx[k] / (10**9)))
elif k == 'value':
k = 'gas-value'
if x != None:
writer.write('{}: {} ({})\n'.format(k, tx[k], x))
else:
writer.write('{}: {}\n'.format(k, tx[k]))
def decode_for_puny_humans(tx_raw, chain_spec, writer, skip_keys=[]):
tx_raw = strip_0x(tx_raw)
tx_raw_bytes = bytes.fromhex(tx_raw)
tx = unpack(tx_raw_bytes, chain_spec)
decode_out(tx, writer, skip_keys=skip_keys)
writer.write('src: {}\n'.format(add_0x(tx_raw)))

26
chainlib/eth/sign.py Normal file
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# local imports
from chainlib.jsonrpc import JSONRPCRequest
def new_account(passphrase='', id_generator=None):
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] = 'personal_newAccount'
o['params'] = [passphrase]
return j.finalize(o)
def sign_transaction(payload, id_generator=None):
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] = 'eth_signTransaction'
o['params'] = [payload]
return j.finalize(o)
def sign_message(address, payload, id_generator=None):
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] = 'eth_sign'
o['params'] = [address, payload]
return j.finalize(o)

520
chainlib/eth/tx.py Normal file
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# standard imports
import logging
import enum
import re
# external imports
import coincurve
import sha3
from hexathon import (
strip_0x,
add_0x,
)
from rlp import decode as rlp_decode
from rlp import encode as rlp_encode
from crypto_dev_signer.eth.transaction import EIP155Transaction
from crypto_dev_signer.encoding import public_key_to_address
from crypto_dev_signer.eth.encoding import chain_id_to_v
from potaahto.symbols import snake_and_camel
# local imports
from chainlib.hash import keccak256_hex_to_hex
from chainlib.status import Status
from .address import to_checksum
from .constant import (
MINIMUM_FEE_UNITS,
MINIMUM_FEE_PRICE,
ZERO_ADDRESS,
)
from .contract import ABIContractEncoder
from chainlib.jsonrpc import JSONRPCRequest
logg = logging.getLogger().getChild(__name__)
class TxFormat(enum.IntEnum):
DICT = 0x00
RAW = 0x01
RAW_SIGNED = 0x02
RAW_ARGS = 0x03
RLP = 0x10
RLP_SIGNED = 0x11
JSONRPC = 0x10
field_debugs = [
'nonce',
'gasPrice',
'gas',
'to',
'value',
'data',
'v',
'r',
's',
]
def count(address, confirmed=False, id_generator=None):
j = JSONRPCRequest(id_generator=id_generator)
o = j.template()
o['method'] = 'eth_getTransactionCount'
o['params'].append(address)
if confirmed:
o['params'].append('latest')
else:
o['params'].append('pending')
return j.finalize(o)
count_pending = count
def count_confirmed(address):
return count(address, True)
def pack(tx_src, chain_spec):
if isinstance(tx_src, Tx):
tx_src = tx_src.as_dict()
tx_src = Tx.src_normalize(tx_src)
tx = EIP155Transaction(tx_src, tx_src['nonce'], chain_spec.chain_id())
signature = bytearray(65)
cursor = 0
for a in [
tx_src['r'],
tx_src['s'],
]:
for b in bytes.fromhex(strip_0x(a)):
signature[cursor] = b
cursor += 1
#signature[cursor] = chainv_to_v(chain_spec.chain_id(), tx_src['v'])
tx.apply_signature(chain_spec.chain_id(), signature, v=tx_src['v'])
logg.debug('tx {}'.format(tx.serialize()))
return tx.rlp_serialize()
def unpack(tx_raw_bytes, chain_spec):
chain_id = chain_spec.chain_id()
tx = __unpack_raw(tx_raw_bytes, chain_id)
tx['nonce'] = int.from_bytes(tx['nonce'], 'big')
tx['gasPrice'] = int.from_bytes(tx['gasPrice'], 'big')
tx['gas'] = int.from_bytes(tx['gas'], 'big')
tx['value'] = int.from_bytes(tx['value'], 'big')
return tx
def unpack_hex(tx_raw_bytes, chain_spec):
chain_id = chain_spec.chain_id()
tx = __unpack_raw(tx_raw_bytes, chain_id)
tx['nonce'] = add_0x(hex(tx['nonce']))
tx['gasPrice'] = add_0x(hex(tx['gasPrice']))
tx['gas'] = add_0x(hex(tx['gas']))
tx['value'] = add_0x(hex(tx['value']))
tx['chainId'] = add_0x(hex(tx['chainId']))
return tx
def __unpack_raw(tx_raw_bytes, chain_id=1):
d = rlp_decode(tx_raw_bytes)
logg.debug('decoding using chain id {}'.format(str(chain_id)))
j = 0
for i in d:
v = i.hex()
if j != 3 and v == '':
v = '00'
logg.debug('decoded {}: {}'.format(field_debugs[j], v))
j += 1
vb = chain_id
if chain_id != 0:
v = int.from_bytes(d[6], 'big')
vb = v - (chain_id * 2) - 35
r = bytearray(32)
r[32-len(d[7]):] = d[7]
s = bytearray(32)
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))
signed_hash = h.digest()
d[6] = chain_id
d[7] = b''
d[8] = b''
h = sha3.keccak_256()
h.update(rlp_encode(d))
unsigned_hash = h.digest()
#p = so.recover_public_key_from_msg_hash(unsigned_hash)
#a = p.to_checksum_address()
pubk = coincurve.PublicKey.from_signature_and_message(sig, unsigned_hash, hasher=None)
a = public_key_to_address(pubk)
logg.debug('decoded recovery byte {}'.format(vb))
logg.debug('decoded address {}'.format(a))
logg.debug('decoded signed hash {}'.format(signed_hash.hex()))
logg.debug('decoded unsigned hash {}'.format(unsigned_hash.hex()))
to = d[3].hex() or None
if to != None:
to = to_checksum(to)
data = d[5].hex()
try:
data = add_0x(data)
except:
data = '0x'
return {
'from': a,
'to': to,
'nonce': d[0],
'gasPrice': d[1],
'gas': d[2],
'value': d[4],
'data': data,
'v': v,
'recovery_byte': vb,
'r': add_0x(sig[:32].hex()),
's': add_0x(sig[32:64].hex()),
'chainId': chain_id,
'hash': add_0x(signed_hash.hex()),
'hash_unsigned': add_0x(unsigned_hash.hex()),
}
def transaction(hsh, id_generator=None):
j = JSONRPCRequest(id_generator=id_generator)
o = j.template()
o['method'] = 'eth_getTransactionByHash'
o['params'].append(add_0x(hsh))
return j.finalize(o)
def transaction_by_block(hsh, idx, id_generator=None):
j = JSONRPCRequest(id_generator=id_generator)
o = j.template()
o['method'] = 'eth_getTransactionByBlockHashAndIndex'
o['params'].append(add_0x(hsh))
o['params'].append(hex(idx))
return j.finalize(o)
def receipt(hsh, id_generator=None):
j = JSONRPCRequest(id_generator=id_generator)
o = j.template()
o['method'] = 'eth_getTransactionReceipt'
o['params'].append(add_0x(hsh))
return j.finalize(o)
def raw(tx_raw_hex, id_generator=None):
j = JSONRPCRequest(id_generator=id_generator)
o = j.template()
o['method'] = 'eth_sendRawTransaction'
o['params'].append(add_0x(tx_raw_hex))
return j.finalize(o)
class TxFactory:
fee = 8000000
def __init__(self, chain_spec, signer=None, gas_oracle=None, nonce_oracle=None):
self.gas_oracle = gas_oracle
self.nonce_oracle = nonce_oracle
self.chain_spec = chain_spec
self.signer = signer
def build_raw(self, tx):
if tx['to'] == None or tx['to'] == '':
tx['to'] = '0x'
txe = EIP155Transaction(tx, tx['nonce'], tx['chainId'])
tx_raw = self.signer.sign_transaction_to_rlp(txe)
tx_raw_hex = add_0x(tx_raw.hex())
tx_hash_hex = add_0x(keccak256_hex_to_hex(tx_raw_hex))
return (tx_hash_hex, tx_raw_hex)
def build(self, tx, id_generator=None):
(tx_hash_hex, tx_raw_hex) = self.build_raw(tx)
o = raw(tx_raw_hex, id_generator=id_generator)
return (tx_hash_hex, o)
def template(self, sender, recipient, use_nonce=False):
gas_price = MINIMUM_FEE_PRICE
gas_limit = MINIMUM_FEE_UNITS
if self.gas_oracle != None:
(gas_price, gas_limit) = self.gas_oracle.get_gas()
logg.debug('using gas price {} limit {}'.format(gas_price, gas_limit))
nonce = 0
o = {
'from': sender,
'to': recipient,
'value': 0,
'data': '0x',
'gasPrice': gas_price,
'gas': gas_limit,
'chainId': self.chain_spec.chain_id(),
}
if self.nonce_oracle != None and use_nonce:
nonce = self.nonce_oracle.next_nonce()
logg.debug('using nonce {} for address {}'.format(nonce, sender))
o['nonce'] = nonce
return o
def normalize(self, tx):
txe = EIP155Transaction(tx, tx['nonce'], tx['chainId'])
txes = txe.serialize()
return {
'from': tx['from'],
'to': txes['to'],
'gasPrice': txes['gasPrice'],
'gas': txes['gas'],
'data': txes['data'],
}
def finalize(self, tx, tx_format=TxFormat.JSONRPC, id_generator=None):
if tx_format == TxFormat.JSONRPC:
return self.build(tx, id_generator=id_generator)
elif tx_format == TxFormat.RLP_SIGNED:
return self.build_raw(tx)
raise NotImplementedError('tx formatting {} not implemented'.format(tx_format))
def set_code(self, tx, data, update_fee=True):
tx['data'] = data
if update_fee:
tx['gas'] = TxFactory.fee
if self.gas_oracle != None:
(price, tx['gas']) = self.gas_oracle.get_gas(code=data)
else:
logg.debug('using hardcoded gas limit of 8000000 until we have reliable vm executor')
return tx
def transact_noarg(self, method, contract_address, sender_address, tx_format=TxFormat.JSONRPC):
enc = ABIContractEncoder()
enc.method(method)
data = 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 call_noarg(self, method, contract_address, sender_address=ZERO_ADDRESS, id_generator=None):
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] = 'eth_call'
enc = ABIContractEncoder()
enc.method(method)
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')
o = j.finalize(o)
return o
class Tx:
# TODO: force tx type schema parser (whether expect hex or int etc)
def __init__(self, src, block=None, rcpt=None):
self.tx_src = self.src_normalize(src)
self.index = -1
tx_hash = add_0x(src['hash'])
if block != None:
i = 0
for tx in block.txs:
tx_hash_block = None
try:
tx_hash_block = tx['hash']
except TypeError:
tx_hash_block = add_0x(tx)
if tx_hash_block == tx_hash:
self.index = i
break
i += 1
if self.index == -1:
raise AttributeError('tx {} not found in block {}'.format(tx_hash, block.hash))
self.block = block
self.hash = strip_0x(tx_hash)
try:
self.value = int(strip_0x(src['value']), 16)
except TypeError:
self.value = int(src['value'])
try:
self.nonce = int(strip_0x(src['nonce']), 16)
except TypeError:
self.nonce = int(src['nonce'])
address_from = strip_0x(src['from'])
try:
self.gas_price = int(strip_0x(src['gasPrice']), 16)
except TypeError:
self.gas_price = int(src['gasPrice'])
try:
self.gas_limit = int(strip_0x(src['gas']), 16)
except TypeError:
self.gas_limit = int(src['gas'])
self.outputs = [to_checksum(address_from)]
self.contract = None
try:
inpt = src['input']
except KeyError:
inpt = src['data']
if inpt != '0x':
inpt = strip_0x(inpt)
else:
inpt = ''
self.payload = inpt
to = src['to']
if to == None:
to = ZERO_ADDRESS
self.inputs = [to_checksum(strip_0x(to))]
self.block = block
try:
self.wire = src['raw']
except KeyError:
logg.warning('no inline raw tx src, and no raw rendering implemented, field will be "None"')
self.status = Status.PENDING
self.logs = None
if rcpt != None:
self.apply_receipt(rcpt)
self.v = src.get('v')
self.r = src.get('r')
self.s = src.get('s')
self.wire = None
def src(self):
return self.tx_src
@classmethod
def src_normalize(self, src):
src = snake_and_camel(src)
if isinstance(src.get('v'), str):
try:
src['v'] = int(src['v'])
except ValueError:
src['v'] = int(src['v'], 16)
return src
def as_dict(self):
return self.src()
def apply_receipt(self, rcpt):
rcpt = self.src_normalize(rcpt)
logg.debug('rcpt {}'.format(rcpt))
try:
status_number = int(rcpt['status'], 16)
except TypeError:
status_number = int(rcpt['status'])
if status_number == 1:
self.status = Status.SUCCESS
elif status_number == 0:
self.status = Status.ERROR
# TODO: replace with rpc receipt/transaction translator when available
contract_address = rcpt.get('contractAddress')
if contract_address == None:
contract_address = rcpt.get('contract_address')
if contract_address != None:
self.contract = contract_address
self.logs = rcpt['logs']
try:
self.gas_used = int(rcpt['gasUsed'], 16)
except TypeError:
self.gas_used = int(rcpt['gasUsed'])
def apply_block(self, block):
#block_src = self.src_normalize(block_src)
self.block = block
def generate_wire(self, chain_spec):
b = pack(self.src(), chain_spec)
self.wire = add_0x(b.hex())
@staticmethod
def from_src(src, block=None):
return Tx(src, block=block)
def __str__(self):
if self.block != None:
return 'tx {} status {} block {} index {}'.format(add_0x(self.hash), self.status.name, self.block.number, self.index)
else:
return 'tx {} status {}'.format(add_0x(self.hash), self.status.name)
def __repr__(self):
return self.__str__()
def to_human(self):
s = """hash {}
from {}
to {}
value {}
nonce {}
gasPrice {}
gasLimit {}
input {}
""".format(
self.hash,
self.outputs[0],
self.inputs[0],
self.value,
self.nonce,
self.gas_price,
self.gas_limit,
self.payload,
)
if self.status != Status.PENDING:
s += """gasUsed {}
""".format(
self.gas_used,
)
s += 'status ' + self.status.name + '\n'
if self.contract != None:
s += """contract {}
""".format(
self.contract,
)
if self.wire != None:
s += """src {}
""".format(
self.wire,
)
return s

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chainlib/eth/unittest/base.py Normal file
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# standard imports
import os
import logging
# external imports
import eth_tester
import coincurve
from chainlib.connection import (
RPCConnection,
error_parser,
)
from chainlib.eth.address import (
to_checksum_address,
)
from chainlib.jsonrpc import (
jsonrpc_response,
jsonrpc_error,
jsonrpc_result,
)
from hexathon import (
unpad,
add_0x,
strip_0x,
)
from crypto_dev_signer.eth.signer import ReferenceSigner as EIP155Signer
from crypto_dev_signer.encoding import private_key_to_address
logg = logging.getLogger().getChild(__name__)
test_pk = bytes.fromhex('5087503f0a9cc35b38665955eb830c63f778453dd11b8fa5bd04bc41fd2cc6d6')
class EthTesterSigner(eth_tester.EthereumTester):
def __init__(self, backend, keystore):
super(EthTesterSigner, self).__init__(backend)
logg.debug('accounts {}'.format(self.get_accounts()))
self.keystore = keystore
self.backend = backend
self.backend.add_account(test_pk)
for pk in self.backend.account_keys:
pubk = pk.public_key
address = pubk.to_checksum_address()
logg.debug('test keystore have pk {} pubk {} addr {}'.format(pk, pk.public_key, address))
self.keystore.import_raw_key(pk._raw_key)
def new_account(self):
pk = os.urandom(32)
address = self.keystore.import_raw_key(pk)
checksum_address = add_0x(to_checksum_address(address))
self.backend.add_account(pk)
return checksum_address
class TestRPCConnection(RPCConnection):
def __init__(self, location, backend, signer):
super(TestRPCConnection, self).__init__(location)
self.backend = backend
self.signer = signer
def do(self, o, error_parser=error_parser):
logg.debug('testrpc do {}'.format(o))
m = getattr(self, o['method'])
if m == None:
raise ValueError('unhandled method {}'.format(o['method']))
r = None
try:
result = m(o['params'])
logg.debug('result {}'.format(result))
r = jsonrpc_response(o['id'], result)
except Exception as e:
logg.exception(e)
r = jsonrpc_error(o['id'], message=str(e))
return jsonrpc_result(r, error_parser)
def eth_blockNumber(self, p):
block = self.backend.get_block_by_number('latest')
return block['number']
def eth_getBlockByNumber(self, p):
b = bytes.fromhex(strip_0x(p[0]))
n = int.from_bytes(b, 'big')
block = self.backend.get_block_by_number(n)
return block
def eth_getBlockByHash(self, p):
block = self.backend.get_block_by_hash(p[0])
return block
def eth_getTransactionByBlock(self, p):
block = self.eth_getBlockByHash(p)
try:
tx_index = int(p[1], 16)
except TypeError:
tx_index = int(p[1])
tx_hash = block['transactions'][tx_index]
tx = self.eth_getTransactionByHash([tx_hash])
return tx
def eth_getBalance(self, p):
balance = self.backend.get_balance(p[0])
hx = balance.to_bytes(32, 'big').hex()
return add_0x(unpad(hx))
def eth_getTransactionCount(self, p):
nonce = self.backend.get_nonce(p[0])
hx = nonce.to_bytes(4, 'big').hex()
return add_0x(unpad(hx))
def eth_getTransactionByHash(self, p):
tx = self.backend.get_transaction_by_hash(p[0])
return tx
def eth_getTransactionByBlockHashAndIndex(self, p):
#logg.debug('p {}'.format(p))
#block = self.eth_getBlockByHash(p[0])
#tx = block.transactions[p[1]]
#return eth_getTransactionByHash(tx[0])
return self.eth_getTransactionByBlock(p)
def eth_getTransactionReceipt(self, p):
rcpt = self.backend.get_transaction_receipt(p[0])
if rcpt.get('block_number') == None:
rcpt['block_number'] = rcpt['blockNumber']
else:
rcpt['blockNumber'] = rcpt['block_number']
return rcpt
def eth_getCode(self, p):
r = self.backend.get_code(p[0])
return r
def eth_call(self, p):
tx_ethtester = to_ethtester_call(p[0])
r = self.backend.call(tx_ethtester)
return r
def eth_gasPrice(self, p):
return hex(1000000000)
def personal_newAccount(self, passphrase):
a = self.backend.new_account()
return a
def eth_sign(self, p):
r = self.signer.sign_ethereum_message(strip_0x(p[0]), strip_0x(p[1]))
return r
def eth_sendRawTransaction(self, p):
r = self.backend.send_raw_transaction(p[0])
return r
def eth_signTransaction(self, p):
raise NotImplementedError('needs transaction deserializer for EIP155Transaction')
tx_dict = p[0]
tx = EIP155Transaction(tx_dict, tx_dict['nonce'], tx_dict['chainId'])
passphrase = p[1]
r = self.signer.sign_transaction_to_rlp(tx, passphrase)
return r
def __verify_signer(self, tx, passphrase=''):
pk_bytes = self.backend.keystore.get(tx.sender)
pk = coincurve.PrivateKey(secret=pk_bytes)
result_address = private_key_to_address(pk)
assert strip_0x(result_address) == strip_0x(tx.sender)
def sign_transaction(self, tx, passphrase=''):
self.__verify_signer(tx, passphrase)
return self.signer.sign_transaction(tx, passphrase)
def sign_transaction_to_rlp(self, tx, passphrase=''):
self.__verify_signer(tx, passphrase)
return self.signer.sign_transaction_to_rlp(tx, passphrase)
def disconnect(self):
pass
def to_ethtester_call(tx):
if tx['gas'] == '':
tx['gas'] = '0x00'
if tx['gasPrice'] == '':
tx['gasPrice'] = '0x00'
tx = {
'to': tx['to'],
'from': tx['from'],
'gas': int(tx['gas'], 16),
'gas_price': int(tx['gasPrice'], 16),
'data': tx['data'],
}
return tx

80
chainlib/eth/unittest/ethtester.py Normal file
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# standard imports
import os
import unittest
import logging
# external imports
import eth_tester
from crypto_dev_signer.eth.signer import ReferenceSigner as EIP155Signer
from crypto_dev_signer.keystore.dict import DictKeystore
from hexathon import (
strip_0x,
add_0x,
)
from eth import constants
from eth.vm.forks.byzantium import ByzantiumVM
# local imports
from .base import (
EthTesterSigner,
TestRPCConnection,
)
from chainlib.connection import (
RPCConnection,
ConnType,
)
from chainlib.eth.address import to_checksum_address
from chainlib.chain import ChainSpec
logg = logging.getLogger(__name__)
test_address = bytes.fromhex('Eb3907eCad74a0013c259D5874AE7f22DcBcC95C')
def create_tester_signer(keystore):
genesis_params = eth_tester.backends.pyevm.main.get_default_genesis_params({
'gas_limit': 8000000,
'coinbase': test_address, # doesn't seem to work
})
vm_configuration = (
(constants.GENESIS_BLOCK_NUMBER, ByzantiumVM),
)
genesis_state = eth_tester.PyEVMBackend._generate_genesis_state(num_accounts=30)
eth_backend = eth_tester.PyEVMBackend(
genesis_state=genesis_state,
genesis_parameters=genesis_params,
vm_configuration=vm_configuration,
)
return EthTesterSigner(eth_backend, keystore)
class EthTesterCase(unittest.TestCase):
def __init__(self, foo):
super(EthTesterCase, self).__init__(foo)
self.accounts = []
def setUp(self):
self.chain_spec = ChainSpec('evm', 'foochain', 42)
self.keystore = DictKeystore()
eth_tester_instance = create_tester_signer(self.keystore)
self.signer = EIP155Signer(self.keystore)
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)))
def rpc_with_tester(chain_spec=self.chain_spec, url=None):
return self.rpc
RPCConnection.register_constructor(ConnType.CUSTOM, rpc_with_tester, tag='default')
RPCConnection.register_constructor(ConnType.CUSTOM, rpc_with_tester, tag='signer')
RPCConnection.register_location('custom', self.chain_spec, tag='default', exist_ok=True)
RPCConnection.register_location('custom', self.chain_spec, tag='signer', exist_ok=True)
def tearDown(self):
pass

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example/call_balance.py Normal file
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# standard imports
import os
# external imports
from hexathon import strip_0x, add_0x
# local imports
from chainlib.eth.gas import balance, parse_balance
from chainlib.eth.connection import EthHTTPConnection
# create a random address to check
address_bytes = os.urandom(20)
address = add_0x(address_bytes.hex())
# connect to rpc node and send request for balance
rpc_provider = os.environ.get('RPC_PROVIDER', 'http://localhost:8545')
rpc = EthHTTPConnection(rpc_provider)
o = balance(address)
r = rpc.do(o)
clean_address = strip_0x(address)
clean_balance = parse_balance(r)
print('address {} has balance {}'.format(clean_address, clean_balance))

75
example/contract_transaction.py Normal file
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# standard imports
import os
# external imports
from crypto_dev_signer.keystore.dict import DictKeystore
from crypto_dev_signer.eth.signer import ReferenceSigner as EIP155Signer
from hexathon import (
add_0x,
strip_0x,
)
# local imports
from chainlib.chain import ChainSpec
from chainlib.eth.nonce import OverrideNonceOracle
from chainlib.eth.gas import OverrideGasOracle
from chainlib.eth.tx import (
TxFactory,
TxFormat,
unpack,
pack,
raw,
)
from chainlib.eth.contract import (
ABIContractEncoder,
ABIContractDecoder,
ABIContractType,
)
# eth transactions need an explicit chain parameter as part of their signature
chain_spec = ChainSpec.from_chain_str('evm:ethereum:1')
# create keystore and signer
keystore = DictKeystore()
signer = EIP155Signer(keystore)
sender_address = keystore.new()
recipient_address = keystore.new()
# explicitly set nonce and gas parameters on this transaction
nonce_oracle = OverrideNonceOracle(sender_address, 0)
gas_oracle = OverrideGasOracle(price=1000000000, limit=21000)
# encode the contract parameters
enc = ABIContractEncoder()
enc.method('fooBar')
enc.typ(ABIContractType.ADDRESS)
enc.typ(ABIContractType.UINT256)
enc.address(recipient_address)
enc.uint256(42)
data = enc.get()
# create a new transaction, but output in raw rlp format
tx_factory = TxFactory(chain_spec, signer=signer, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle)
tx = tx_factory.template(sender_address, recipient_address, use_nonce=True)
tx = tx_factory.set_code(tx, data)
(tx_hash, tx_signed_raw) = tx_factory.finalize(tx, tx_format=TxFormat.RLP_SIGNED)
print('contract transaction: {}'.format(tx))
# retrieve the input data from the transaction
tx_src = unpack(bytes.fromhex(strip_0x(tx_signed_raw)), chain_spec)
data_recovered = strip_0x(tx_src['data'])
# decode the contract parameters
dec = ABIContractDecoder()
dec.typ(ABIContractType.ADDRESS)
dec.typ(ABIContractType.UINT256)
# (yes, this interface needs to be vastly improved, it should take the whole buffer and advance with cursor itself)
cursor = 8 # the method signature is 8 characters long. input data to the solidity function starts after that
dec.val(data_recovered[cursor:cursor+64])
cursor += 64
dec.val(data_recovered[cursor:cursor+64])
r = dec.decode()
print('contract param 1 {}'.format(r[0]))
print('contract param 2 {}'.format(r[1]))

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example/jsonrpc.py Normal file
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# standard imports
import os
import sys
# local imports
from chainlib.jsonrpc import jsonrpc_template
from chainlib.eth.connection import EthHTTPConnection
# set up node connection and execute rpc call
rpc_provider = os.environ.get('RPC_PROVIDER', 'http://localhost:8545')
rpc = EthHTTPConnection(rpc_provider)
# check the connection
if not rpc.check():
sys.stderr.write('node {} not usable\n'.format(rpc_provider))
sys.exit(1)
# build and send rpc call
o = jsonrpc_template()
o['method'] = 'eth_blockNumber'
r = rpc.do(o)
# interpret result for humans
try:
block_number = int(r, 10)
except ValueError:
block_number = int(r, 16)
print('block number {}'.format(block_number))

57
example/online_transaction.py Normal file
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# standard imports
import sys
import os
# external imports
from crypto_dev_signer.keystore.dict import DictKeystore
from crypto_dev_signer.eth.signer import ReferenceSigner as EIP155Signer
from hexathon import (
add_0x,
strip_0x,
)
# local imports
from chainlib.chain import ChainSpec
from chainlib.eth.connection import EthHTTPConnection
from chainlib.eth.nonce import RPCNonceOracle
from chainlib.eth.gas import RPCGasOracle
from chainlib.eth.tx import (
TxFactory,
TxFormat,
)
from chainlib.error import JSONRPCException
# eth transactions need an explicit chain parameter as part of their signature
chain_spec = ChainSpec.from_chain_str('evm:ethereum:1')
# create keystore and signer
keystore = DictKeystore()
signer = EIP155Signer(keystore)
sender_address = keystore.new()
recipient_address = keystore.new()
# set up node connection
rpc_provider = os.environ.get('RPC_PROVIDER', 'http://localhost:8545')
rpc = EthHTTPConnection(rpc_provider)
# check the connection
if not rpc.check():
sys.stderr.write('node {} not usable\n'.format(rpc_provider))
sys.exit(1)
# nonce will now be retrieved from network
nonce_oracle = RPCNonceOracle(sender_address, rpc)
# gas price retrieved from network, and limit from callback
def calculate_gas(code=None):
return 21000
gas_oracle = RPCGasOracle(rpc, code_callback=calculate_gas)
# create a new transaction
tx_factory = TxFactory(chain_spec, signer=signer, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle)
tx = tx_factory.template(sender_address, recipient_address, use_nonce=True)
tx['value'] = 1024
(tx_hash, tx_rpc) = tx_factory.finalize(tx)
print('transaction hash: ' + tx_hash)
print('jsonrpc payload: ' + str(tx_rpc))

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example/transaction.py Normal file
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# standard imports
import os
# external imports
from crypto_dev_signer.keystore.dict import DictKeystore
from crypto_dev_signer.eth.signer import ReferenceSigner as EIP155Signer
from hexathon import (
add_0x,
strip_0x,
)
# local imports
from chainlib.chain import ChainSpec
from chainlib.eth.nonce import OverrideNonceOracle
from chainlib.eth.gas import OverrideGasOracle
from chainlib.eth.tx import (
TxFactory,
TxFormat,
unpack,
pack,
raw,
)
# eth transactions need an explicit chain parameter as part of their signature
chain_spec = ChainSpec.from_chain_str('evm:ethereum:1')
# create keystore and signer
keystore = DictKeystore()
signer = EIP155Signer(keystore)
sender_address = keystore.new()
recipient_address = keystore.new()
# explicitly set nonce and gas parameters on this transaction
nonce_oracle = OverrideNonceOracle(sender_address, 0)
gas_oracle = OverrideGasOracle(price=1000000000, limit=21000)
# create a new transaction
tx_factory = TxFactory(chain_spec, signer=signer, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle)
tx = tx_factory.template(sender_address, recipient_address, use_nonce=True)
tx['value'] = 1024
(tx_hash, tx_rpc) = tx_factory.finalize(tx)
print('transaction hash: ' + tx_hash)
print('jsonrpc payload: ' + str(tx_rpc))
# create a new transaction, but output in raw rlp format
tx = tx_factory.template(sender_address, recipient_address, use_nonce=True) # will now have increased nonce by 1
tx['value'] = 1024
(tx_hash, tx_signed_raw) = tx_factory.finalize(tx, tx_format=TxFormat.RLP_SIGNED)
print('transaction hash: ' + tx_hash)
print('raw rlp payload: ' + tx_signed_raw)
# convert tx from raw RLP
tx_signed_raw_bytes = bytes.fromhex(strip_0x(tx_signed_raw))
tx_src = unpack(tx_signed_raw_bytes, chain_spec)
print('tx parsed from rlp payload: ' + str(tx_src))
# .. and back
tx_signed_raw_bytes_recovered = pack(tx_src, chain_spec)
tx_signed_raw_recovered = add_0x(tx_signed_raw_bytes_recovered.hex())
print('raw rlp payload re-parsed: ' + tx_signed_raw_recovered)
# create a raw send jsonrpc payload from the raw RLP
o = raw(tx_signed_raw_recovered)
print('jsonrpc payload: ' + str(o))

51
example/tx_object.py Normal file
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# standard imports
import os
# external imports
from crypto_dev_signer.keystore.dict import DictKeystore
from crypto_dev_signer.eth.signer import ReferenceSigner as EIP155Signer
from crypto_dev_signer.eth.transaction import EIP155Transaction
from hexathon import (
add_0x,
strip_0x,
)
# local imports
from chainlib.chain import ChainSpec
from chainlib.eth.tx import (
unpack,
Tx,
)
# eth transactions need an explicit chain parameter as part of their signature
chain_spec = ChainSpec.from_chain_str('evm:ethereum:1')
chain_id = chain_spec.chain_id()
# create keystore and signer
keystore = DictKeystore()
signer = EIP155Signer(keystore)
sender_address = keystore.new()
recipient_address = keystore.new()
# set up a transaction dict source
tx_src = {
'from': sender_address,
'to': recipient_address,
'gas': 21000,
'gasPrice': 1000000000,
'value': 1024,
'data': '0xdeadbeef',
}
sender_nonce = 0
tx = EIP155Transaction(tx_src, sender_nonce, chain_id)
signature = signer.sign_transaction(tx)
print('signature: {}'.format(signature.hex()))
tx.apply_signature(chain_id, signature)
print('tx with signature: {}'.format(tx.serialize()))
tx_signed_raw_bytes = tx.rlp_serialize()
tx_src = unpack(tx_signed_raw_bytes, chain_spec)
tx_parsed = Tx(tx_src)
print('parsed signed tx: {}'.format(tx_parsed.to_human()))

5
requirements.txt Normal file
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crypto-dev-signer~=0.4.14b6
pysha3==1.0.2
hexathon~=0.0.1a7
websocket-client==0.57.0
potaahto~=0.0.1a1

10
run_tests.sh Normal file
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#!/bin/bash
set -e
set -x
#export PYTHONPATH=${PYTHONPATH:.}
for f in `ls tests/*.py`; do
python $f
done
set +x
set +e

43
setup.cfg Normal file
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[metadata]
name = chainlib-eth
version = 0.0.5a1
description = Ethereum implementation of the chainlib interface
author = Louis Holbrook
author_email = dev@holbrook.no
url = https://gitlab.com/chaintools/chainlib
keywords =
dlt
blockchain
cryptocurrency
ethereum
classifiers =
Programming Language :: Python :: 3
Operating System :: OS Independent
Development Status :: 3 - Alpha
Environment :: Console
Intended Audience :: Developers
License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)
Topic :: Internet
# Topic :: Blockchain :: EVM
license = GPL3
licence_files =
LICENSE.txt
[options]
python_requires = >= 3.6
packages =
chainlib.eth
chainlib.eth.runnable
chainlib.eth.pytest
chainlib.eth.unittest
[options.entry_points]
console_scripts =
eth-balance = chainlib.eth.runnable.balance:main
eth-checksum = chainlib.eth.runnable.checksum:main
eth-gas = chainlib.eth.runnable.gas:main
eth-raw = chainlib.eth.runnable.raw:main
eth-get = chainlib.eth.runnable.get:main
eth-decode = chainlib.eth.runnable.decode:main
eth-info = chainlib.eth.runnable.info:main
eth = chainlib.eth.runnable.info:main

28
setup.py Normal file
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from setuptools import setup
import configparser
import os
requirements = []
f = open('requirements.txt', 'r')
while True:
l = f.readline()
if l == '':
break
requirements.append(l.rstrip())
f.close()
test_requirements = []
f = open('test_requirements.txt', 'r')
while True:
l = f.readline()
if l == '':
break
test_requirements.append(l.rstrip())
f.close()
setup(
install_requires=requirements,
tests_require=test_requirements,
)

4
test_requirements.txt Normal file
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eth_tester==0.5.0b3
py-evm==0.3.0a20
rlp==2.0.1
pytest==6.0.1

5
tests/Makefile Normal file
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SOLC = /usr/bin/solc
all:
$(SOLC) --bin TestContract.sol --evm-version byzantium | awk 'NR>3' > TestContract.bin
truncate -s -1 TestContract.bin

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tests/TestContract.sol Normal file
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pragma solidity ^0.8.0;
contract TestEventContract {
event TestEventOne(uint256 indexed _foo, bytes32 _bar);
event TestEventTwo(uint256 _foo);
function foo(uint256 _foo, bytes32 _bar) public returns (bool) {
emit TestEventOne(_foo, _bar);
emit TestEventTwo(_foo);
return true;
}
}

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# standard imports
import os
# external iports
from chainlib.eth.tx import (
TxFactory,
TxFormat,
receipt,
)
from chainlib.eth.contract import (
ABIContractEncoder,
#ABIContractDecoder,
ABIContractType,
)
from hexathon import add_0x
script_dir = os.path.realpath(os.path.dirname(__file__))
data_dir = script_dir
class TestContract(TxFactory):
__abi = None
__bytecode = None
@staticmethod
def gas(code=None):
return 1000000
@staticmethod
def abi():
if TestContract.__abi == None:
f = open(os.path.join(data_dir, 'TestContract.json'), 'r')
TestContract.__abi = json.load(f)
f.close()
return TestContract.__abi
@staticmethod
def bytecode():
if TestContract.__bytecode == None:
f = open(os.path.join(data_dir, 'TestContract.bin'))
TestContract.__bytecode = f.read()
f.close()
return TestContract.__bytecode
def constructor(self, sender_address, tx_format=TxFormat.JSONRPC, id_generator=None):
code = TestContract.bytecode()
tx = self.template(sender_address, None, use_nonce=True)
tx = self.set_code(tx, code)
return self.finalize(tx, tx_format, id_generator=id_generator)
def foo(self, contract_address, sender_address, x, y, tx_format=TxFormat.JSONRPC, id_generator=None):
enc = ABIContractEncoder()
enc.method('foo')
enc.typ(ABIContractType.UINT256)
enc.typ(ABIContractType.BYTES32)
enc.uint256(x)
enc.bytes32(y)
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, id_generator=id_generator)
return tx

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from chainlib.eth.contract import (
ABIContractEncoder,
ABIContractType,
)
def test_abi_param():
e = ABIContractEncoder()
e.uint256(42)
e.bytes32('0x666f6f')
e.address('0xdeadbeefdeadbeefdeadbeefdeadbeefdeadbeef')
e.method('foo')
e.typ(ABIContractType.UINT256)
e.typ(ABIContractType.BYTES32)
e.typ(ABIContractType.ADDRESS)
assert e.types[0] == ABIContractType.UINT256
assert e.types[1] == ABIContractType.BYTES32
assert e.types[2] == ABIContractType.ADDRESS
assert e.contents[0] == '000000000000000000000000000000000000000000000000000000000000002a'
assert e.contents[1] == '0000000000000000000000000000000000000000000000000000000000666f6f'
assert e.contents[2] == '000000000000000000000000deadbeefdeadbeefdeadbeefdeadbeefdeadbeef'
assert e.get() == 'a08f54bb000000000000000000000000000000000000000000000000000000000000002a0000000000000000000000000000000000000000000000000000000000666f6f000000000000000000000000deadbeefdeadbeefdeadbeefdeadbeefdeadbeef'
if __name__ == '__main__':
test_abi_param()

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import unittest
from chainlib.eth.address import (
is_address,
is_checksum_address,
to_checksum,
)
from tests.base import TestBase
class TestChain(TestBase):
def test_chain_spec(self):
checksum_address = '0xEb3907eCad74a0013c259D5874AE7f22DcBcC95C'
plain_address = checksum_address.lower()
self.assertEqual(checksum_address, to_checksum(checksum_address))
self.assertTrue(is_address(plain_address))
self.assertFalse(is_checksum_address(plain_address))
self.assertTrue(is_checksum_address(checksum_address))
self.assertFalse(is_address(plain_address + "00"))
self.assertFalse(is_address(plain_address[:len(plain_address)-2]))
with self.assertRaises(ValueError):
to_checksum(plain_address + "00")
with self.assertRaises(ValueError):
to_checksum(plain_address[:len(plain_address)-2])
if __name__ == '__main__':
unittest.main()

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# standard imports
import os
import unittest
import logging
# local imports
from chainlib.eth.unittest.ethtester import EthTesterCase
from chainlib.eth.nonce import RPCNonceOracle
from chainlib.eth.gas import OverrideGasOracle
from chainlib.eth.tx import receipt
from chainlib.eth.block import block_by_number
from chainlib.eth.log import LogBloom
from hexathon import (
strip_0x,
add_0x,
)
# test imports
from tests.contract import TestContract
script_dir = os.path.realpath(os.path.dirname(__file__))
logging.basicConfig(level=logging.DEBUG)
logg = logging.getLogger()
#{'blockHash': '0xe657e31045be85cfff8c28af6b4fd6417cace7150c4ebbeb736e638313d8e66d', 'block_hash': '0xe657e31045be85cfff8c28af6b4fd6417cace7150c4ebbeb736e638313d8e66d', 'blockNumber': '0xc1ee5a', 'block_number': '0xc1ee5a', 'contractAddress': None, 'contract_address': None, 'cumulativeGasUsed': '0xbc659', 'cumulative_gas_used': '0xbc659', 'from': '0xf6025e63cee5e436a5f1486e040aeead7e97b745', 'gasUsed': '0x1dddb', 'gas_used': '0x1dddb', 'logs': [
#{'address': '0x4e58ab12d2051ea2068e78e4fcee7ddee6785848', 'blockHash': '0xe657e31045be85cfff8c28af6b4fd6417cace7150c4ebbeb736e638313d8e66d', 'blockNumber': '0xc1ee5a', 'data': '0x', 'logIndex': '0xd', 'removed': False, 'topics': ['0x92e98423f8adac6e64d0608e519fd1cefb861498385c6dee70d58fc926ddc68c', '0x0000000000000000000000000000000000000000000000000000000005f6aa5a', '0x00000000000000000000000000000000000000000000000000000000000000d6', '0x000000000000000000000000f6025e63cee5e436a5f1486e040aeead7e97b745'], 'transactionHash': '0xd0f039591953d277d55f628694248cb442590fab95ac53fcfb69e9dbba7db97a', 'transactionIndex': '0xe'},
#{'address': '0x4e58ab12d2051ea2068e78e4fcee7ddee6785848', 'blockHash': '0xe657e31045be85cfff8c28af6b4fd6417cace7150c4ebbeb736e638313d8e66d', 'blockNumber': '0xc1ee5a', 'data': '0x0000000000000000000000000000000000000000000000000000000060d7119f', 'logIndex': '0xe', 'removed': False, 'topics': ['0x0559884fd3a460db3073b7fc896cc77986f16e378210ded43186175bf646fc5f', '0x0000000000000000000000000000000000000000000000000000000005f6aa5a', '0x00000000000000000000000000000000000000000000000000000000000000d6'], 'transactionHash': '0xd0f039591953d277d55f628694248cb442590fab95ac53fcfb69e9dbba7db97a', 'transactionIndex': '0xe'},
#{'address': '0x4e58ab12d2051ea2068e78e4fcee7ddee6785848', 'blockHash': '0xe657e31045be85cfff8c28af6b4fd6417cace7150c4ebbeb736e638313d8e66d', 'blockNumber': '0xc1ee5a', 'data': '0x', 'logIndex': '0xf', 'removed': False, 'topics': ['0xfe25c73e3b9089fac37d55c4c7efcba6f04af04cebd2fc4d6d7dbb07e1e5234f', '0x0000000000000000000000000000000000000000000000813b65aa80e5770000'], 'transactionHash': '0xd0f039591953d277d55f628694248cb442590fab95ac53fcfb69e9dbba7db97a', 'transactionIndex': '0xe'}]
#, 'logsBloom': '0x0000000000000000000000000000000000000080000000000000000000c000000000000000408000000000000000000000000000000200080000000000000000100000000000000000000000000000000000000000000200000020000000000000000000000000800000400000000000400000000400000000000400100000000000000000000000000000000000000000000480000000000000000000000000000000000000000000000000008000000000080000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000000000000000002008000000000000000', 'logs_bloom': '0x0000000000000000000000000000000000000080000000000000000000c000000000000000408000000000000000000000000000000200080000000000000000100000000000000000000000000000000000000000000200000020000000000000000000000000800000400000000000400000000400000000000400100000000000000000000000000000000000000000000480000000000000000000000000000000000000000000000000008000000000080000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000000000000000002008000000000000000', 'status': '0x1', 'to': '0x4e58ab12d2051ea2068e78e4fcee7ddee6785848', 'transactionHash': '0xd0f039591953d277d55f628694248cb442590fab95ac53fcfb69e9dbba7db97a', 'transaction_hash': '0xd0f039591953d277d55f628694248cb442590fab95ac53fcfb69e9dbba7db97a', 'transactionIndex': '0xe', 'transaction_index': '0xe', 'type': '0x0'}
class BloomTestCase(EthTesterCase):
def setUp(self):
super(BloomTestCase, self).setUp()
nonce_oracle = RPCNonceOracle(self.accounts[0], conn=self.rpc)
c = TestContract(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
(tx_hash, o) = c.constructor(self.accounts[0])
r = self.rpc.do(o)
o = receipt(tx_hash)
r = self.rpc.do(o)
self.assertEqual(r['status'], 1)
self.address = r['contract_address']
logg.info('deployed contract on {}'.format(self.address))
def test_log_proof(self):
bloom = LogBloom()
address = bytes.fromhex(strip_0x('0x4e58ab12d2051ea2068e78e4fcee7ddee6785848'))
logs = [
['0x92e98423f8adac6e64d0608e519fd1cefb861498385c6dee70d58fc926ddc68c', '0x0000000000000000000000000000000000000000000000000000000005f6aa5a', '0x00000000000000000000000000000000000000000000000000000000000000d6', '0x000000000000000000000000f6025e63cee5e436a5f1486e040aeead7e97b745'],
['0x0559884fd3a460db3073b7fc896cc77986f16e378210ded43186175bf646fc5f', '0x0000000000000000000000000000000000000000000000000000000005f6aa5a', '0x00000000000000000000000000000000000000000000000000000000000000d6'],
['0xfe25c73e3b9089fac37d55c4c7efcba6f04af04cebd2fc4d6d7dbb07e1e5234f', '0x0000000000000000000000000000000000000000000000813b65aa80e5770000'],
]
bloom.add(address)
for topics in logs:
topics_bytes = []
for topic in topics:
topic_bytes = bytes.fromhex(strip_0x(topic))
bloom.add(topic_bytes)
log_proof_hex = '0x0000000000000000000000000000000000000080000000000000000000c000000000000000408000000000000000000000000000000200080000000000000000100000000000000000000000000000000000000000000200000020000000000000000000000000800000400000000000400000000400000000000400100000000000000000000000000000000000000000000480000000000000000000000000000000000000000000000000008000000000080000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000000000000000002008000000000000000'
log_proof = bytes.fromhex(strip_0x(log_proof_hex))
log_proof_bitcount = 0
for b in log_proof:
for i in range(8):
if b & (1 << (7 - i)) > 0:
log_proof_bitcount += 1
logg.debug('proof log has {} bits set'.format(log_proof_bitcount))
log_created_bitcount = 0
for b in bloom.content:
for i in range(8):
if b & (1 << (7 - i)) > 0:
log_created_bitcount += 1
logg.debug('created log has {} bits set'.format(log_created_bitcount))
logg.debug('log_proof:\n{}'.format(log_proof_hex))
logg.debug('log_created:\n{}'.format(add_0x(bloom.content.hex())))
for i in range(len(bloom.content)):
chk = bloom.content[i] & log_proof[i]
if chk != bloom.content[i]:
self.fail('mismatch at {}: {} != {}'.format(i, chk, bloom.content[i]))
@unittest.skip('pyevm tester produces bogus log blooms')
def test_log(self):
nonce_oracle = RPCNonceOracle(self.accounts[0], conn=self.rpc)
gas_oracle = OverrideGasOracle(limit=50000, conn=self.rpc)
c = TestContract(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
b = b'\xee' * 32
(tx_hash, o) = c.foo(self.address, self.accounts[0], 42, b.hex())
r = self.rpc.do(o)
o = receipt(tx_hash)
rcpt = self.rpc.do(o)
self.assertEqual(rcpt['status'], 1)
bloom = LogBloom()
topic = rcpt['logs'][0]['topics'][0]
topic = bytes.fromhex(strip_0x(topic))
address = bytes.fromhex(strip_0x(self.address))
bloom.add(topic, address)
o = block_by_number(rcpt['block_number'])
r = self.rpc.do(o)
if __name__ == '__main__':
unittest.main()

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# standard imports
import unittest
import logging
# local imports
from chainlib.eth.unittest.ethtester import EthTesterCase
from chainlib.eth.contract import (
ABIContractLogDecoder,
ABIContractType,
)
logging.basicConfig(level=logging.DEBUG)
class TestContractLog(EthTesterCase):
def test_log(self):
dec = ABIContractLogDecoder()
dec.topic('TestEventOne')
dec.typ(ABIContractType.UINT256)
dec.typ(ABIContractType.BYTES32)
s = dec.get_method_signature()
n = 42
topics = [
s,
n.to_bytes(32, byteorder='big'),
]
data = [
(b'\xee' * 32),
]
dec.apply(topics, data)
o = dec.decode()
self.assertEqual(o[0], 42)
self.assertEqual(o[1], data[0].hex())
if __name__ == '__main__':
unittest.main()

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tests/test_nonce.py Normal file
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# standard imports
import os
import unittest
# local imports
from chainlib.eth.address import to_checksum_address
from chainlib.eth.nonce import OverrideNonceOracle
from hexathon import add_0x
# test imports
from tests.base import TestBase
class TestNonce(TestBase):
def test_nonce(self):
addr_bytes = os.urandom(20)
addr = add_0x(to_checksum_address(addr_bytes.hex()))
n = OverrideNonceOracle(addr, 42)
self.assertEqual(n.get_nonce(), 42)
self.assertEqual(n.next_nonce(), 42)
self.assertEqual(n.next_nonce(), 43)
if __name__ == '__main__':
unittest.main()

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# standard imports
import os
import socket
import unittest
import unittest.mock
import logging
import json
# external imports
from crypto_dev_signer.eth.transaction import EIP155Transaction
from crypto_dev_signer.eth.signer.defaultsigner import ReferenceSigner
from crypto_dev_signer.keystore.dict import DictKeystore
# local imports
import chainlib
from chainlib.eth.connection import EthUnixSignerConnection
from chainlib.eth.sign import sign_transaction
from chainlib.eth.tx import TxFactory
from chainlib.eth.address import to_checksum_address
from chainlib.jsonrpc import (
jsonrpc_response,
jsonrpc_error,
)
from hexathon import (
add_0x,
)
from chainlib.chain import ChainSpec
from tests.base import TestBase
logging.basicConfig(level=logging.DEBUG)
logg = logging.getLogger()
keystore = DictKeystore()
alice = keystore.new()
bob = keystore.new()
class Mocket(socket.socket):
req_id = None
error = False
tx = None
signer = None
def connect(self, v):
return self
def send(self, v):
o = json.loads(v)
logg.debug('mocket received {}'.format(v))
Mocket.req_id = o['id']
params = o['params'][0]
if to_checksum_address(params.get('from')) != alice:
logg.error('from does not match alice {}'.format(params))
Mocket.error = True
if to_checksum_address(params.get('to')) != bob:
logg.error('to does not match bob {}'.format(params))
Mocket.error = True
if not Mocket.error:
Mocket.tx = EIP155Transaction(params, params['nonce'], params['chainId'])
logg.debug('mocket {}'.format(Mocket.tx))
return len(v)
def recv(self, c):
if Mocket.req_id != None:
o = None
if Mocket.error:
o = jsonrpc_error(Mocket.req_id)
else:
tx = Mocket.tx
r = Mocket.signer.sign_transaction_to_rlp(tx)
Mocket.tx = None
o = jsonrpc_response(Mocket.req_id, add_0x(r.hex()))
Mocket.req_id = None
return json.dumps(o).encode('utf-8')
return b''
class TestSign(TestBase):
def setUp(self):
super(TestSign, self).__init__()
self.chain_spec = ChainSpec('evm', 'foo', 42)
logg.debug('alice {}'.format(alice))
logg.debug('bob {}'.format(bob))
self.signer = ReferenceSigner(keystore)
Mocket.signer = self.signer
def test_sign_build(self):
with unittest.mock.patch('chainlib.connection.socket.socket', Mocket) as m:
rpc = EthUnixSignerConnection('foo', chain_spec=self.chain_spec)
f = TxFactory(self.chain_spec, signer=rpc)
tx = f.template(alice, bob, use_nonce=True)
tx = f.build(tx)
logg.debug('tx result {}'.format(tx))
def test_sign_rpc(self):
with unittest.mock.patch('chainlib.connection.socket.socket', Mocket) as m:
rpc = EthUnixSignerConnection('foo')
f = TxFactory(self.chain_spec, signer=rpc)
tx = f.template(alice, bob, use_nonce=True)
tx_o = sign_transaction(tx)
rpc.do(tx_o)
if __name__ == '__main__':
unittest.main()

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# standard imports
import unittest
import datetime
# external imports
from chainlib.stat import ChainStat
from chainlib.eth.block import Block
class TestStat(unittest.TestCase):
def test_block(self):
s = ChainStat()
d = datetime.datetime.utcnow() - datetime.timedelta(seconds=30)
block_a = Block({
'timestamp': d.timestamp(),
'hash': None,
'transactions': [],
'number': 41,
})
d = datetime.datetime.utcnow()
block_b = Block({
'timestamp': d.timestamp(),
'hash': None,
'transactions': [],
'number': 42,
})
s.block_apply(block_a)
s.block_apply(block_b)
self.assertEqual(s.block_average(), 30.0)
d = datetime.datetime.utcnow() + datetime.timedelta(seconds=10)
block_c = Block({
'timestamp': d.timestamp(),
'hash': None,
'transactions': [],
'number': 43,
})
s.block_apply(block_c)
self.assertEqual(s.block_average(), 20.0)
if __name__ == '__main__':
unittest.main()

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tests/test_tx.py Normal file
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# standard imports
import os
import unittest
import logging
# local imports
from chainlib.eth.unittest.ethtester import EthTesterCase
from chainlib.eth.nonce import RPCNonceOracle
from chainlib.eth.gas import (
RPCGasOracle,
Gas,
)
from chainlib.eth.tx import (
unpack,
pack,
raw,
transaction,
TxFormat,
TxFactory,
Tx,
)
from chainlib.eth.contract import (
ABIContractEncoder,
ABIContractType,
)
from chainlib.eth.address import to_checksum_address
from hexathon import (
strip_0x,
add_0x,
)
logging.basicConfig(level=logging.DEBUG)
logg = logging.getLogger()
class TxTestCase(EthTesterCase):
def test_tx_reciprocal(self):
nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
gas_oracle = RPCGasOracle(self.rpc)
c = Gas(signer=self.signer, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle, chain_spec=self.chain_spec)
(tx_hash_hex, o) = c.create(self.accounts[0], self.accounts[1], 1024, tx_format=TxFormat.RLP_SIGNED)
tx = unpack(bytes.fromhex(strip_0x(o)), self.chain_spec)
self.assertEqual(tx['from'], self.accounts[0])
self.assertEqual(tx['to'], self.accounts[1])
def test_tx_pack(self):
nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
gas_oracle = RPCGasOracle(self.rpc)
mock_contract = to_checksum_address(add_0x(os.urandom(20).hex()))
f = TxFactory(self.chain_spec, signer=self.rpc)
enc = ABIContractEncoder()
enc.method('fooMethod')
enc.typ(ABIContractType.UINT256)
enc.uint256(13)
data = enc.get()
tx = f.template(self.accounts[0], mock_contract, use_nonce=True)
tx = f.set_code(tx, data)
(tx_hash, tx_signed_raw_hex) = f.finalize(tx, TxFormat.RLP_SIGNED)
logg.debug('tx result {}'.format(tx))
o = raw(tx_signed_raw_hex)
r = self.rpc.do(o)
o = transaction(tx_hash)
tx_rpc_src = self.rpc.do(o)
logg.debug('rpc src {}'.format(tx_rpc_src))
tx_signed_raw_bytes = bytes.fromhex(strip_0x(tx_signed_raw_hex))
tx_src = unpack(tx_signed_raw_bytes, self.chain_spec)
txo = Tx(tx_src)
tx_signed_raw_bytes_recovered = pack(txo, self.chain_spec)
logg.debug('o {}'.format(tx_signed_raw_bytes.hex()))
logg.debug('r {}'.format(tx_signed_raw_bytes_recovered.hex()))
self.assertEqual(tx_signed_raw_bytes, tx_signed_raw_bytes_recovered)
if __name__ == '__main__':
unittest.main()

1
tests/testdata/keystore/UTC--2021-01-08T17-18-44.521011372Z--eb3907ecad74a0013c259d5874ae7f22dcbcc95c vendored Normal file
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{"address":"eb3907ecad74a0013c259d5874ae7f22dcbcc95c","crypto":{"cipher":"aes-128-ctr","ciphertext":"b0f70a8af4071faff2267374e2423cbc7a71012096fd2215866d8de7445cc215","cipherparams":{"iv":"9ac89383a7793226446dcb7e1b45cdf3"},"kdf":"scrypt","kdfparams":{"dklen":32,"n":262144,"p":1,"r":8,"salt":"299f7b5df1d08a0a7b7f9c9eb44fe4798683b78da3513fcf9603fd913ab3336f"},"mac":"6f4ed36c11345a9a48353cd2f93f1f92958c96df15f3112a192bc994250e8d03"},"id":"61a9dd88-24a9-495c-9a51-152bd1bfaa5b","version":3}