def __init__(self, msgs):
self.msgs = msgs
self.raw_hashes = b''
for m in msgs:
self.raw_hashes += m.h
self.h = Web3.sha3(self.raw_hashes)
def parse_insert_abi(abi):
def parse_inputs(func_inputs):
inputs = []
params = []
param_counter = 0
for r in func_inputs:
param_counter += 1
type_ = r["type"]
name_ = r["name"]
if len(name_) == 0:
name_ = "param" + str(param_counter)
if name_[0] != "_":
name_ = "_" + name_
params.append({"type": r["type"], "name": name_})
if "tuple" not in type_:
inputs.append(type_)
else:
type_ = f"({parse_inputs(r['components'])[0]})" + type_[5:]
inputs.append(type_)
return ",".join(inputs), params
output = {}
for func in abi:
if func["type"] in ["constructor", "fallback"]:
continue
inputs, params = parse_inputs(func["inputs"])
fname = f"{func['name']}({inputs})"
sha3 = Web3.sha3(text=fname).hex()[:10]
if sha3 in output:
print("double declaration for the same hash! {}".format(fname))
continue
output[sha3] = {
"name": func["name"],
"folded_name": fname,
"params": params,
}
for sha3, row in output.items():
row["cooccurs"] = list(output.keys())
insert_row = (
sha3,
row["name"],
row["folded_name"],
json.dumps(row["params"]),
",".join(row["cooccurs"]),
)
insert_row2 = (
int(sha3, 16),
row["name"],
row["folded_name"],
json.dumps(row["params"]),
)
test_hash, test_cooccurs = insert_row[0], insert_row[4]
cursor.execute(
"SELECT * from functions where hash=? and cooccurs=?",
(test_hash, test_cooccurs),
)
results = cursor.fetchall()
if len(results) == 0:
print("inserting", sha3, row["folded_name"])
cursor.execute("INSERT INTO functions VALUES (?, ?, ?, ?, ?)",
insert_row)
conn.commit()
cursor2.execute("SELECT * from functions where hash=?",
(insert_row2[0], ))
results = cursor2.fetchall()
if len(results) == 0:
print("inserting2", sha3, row["folded_name"])
cursor2.execute("INSERT INTO functions VALUES (?, ?, ?, ?)",
insert_row2)
conn2.commit()
def generate_selector(method_name_and_params):
method_selector = Web3.sha3(text=method_name_and_params)[0:4].hex()
return method_selector
def register(self, did_source, url=None, ddo=None, did=None, key=None, account=None):
"""
Register or update a DID on the block chain using the DIDRegistry smart contract
:param did_source: DID to register/update, can be a 32 byte or hexstring
:param url: URL of the resolved DID
:param ddo: DDO string or DDO object to resolve too
:param did: DID to resovlve too, can be a 32 byte value or 64 hex string
:param key: Optional 32 byte key ( 64 char hex )
:param account: instance of Account to use to register/update the DID
"""
value_type = VALUE_TYPE_DID
value = None
did_source_id = did_to_id_bytes(did_source)
if not did_source_id:
raise ValueError('{} must be a valid DID to register'.format(did_source))
if url:
value_type = VALUE_TYPE_URL
value = url
if not urlparse(url):
raise ValueError('Invalid URL {0} to register for DID {1}'.format(url, did_source))
if ddo:
value_type = VALUE_TYPE_DDO
if isinstance(ddo, DDO):
value = ddo.as_text()
elif isinstance(ddo, str):
value = ddo
else:
raise ValueError('Invalid DDO {0} to register for DID {1}'.format(ddo, did_source))
if did:
value_type = VALUE_TYPE_DID
id_bytes = did_to_id_bytes(did)
if not id_bytes:
raise ValueError('Invalid DID {}'.format(did))
if did_source_id == id_bytes:
raise OceanDIDCircularReference('Cannot have the same DID that points to itself')
value = re.sub('^0x', '', Web3.toHex(id_bytes))
if isinstance(key, str):
key = Web3.sha3(text=key)
if key is None:
key = Web3.toBytes(0)
if not isinstance(key, bytes):
raise ValueError('Invalid key value {}, must be bytes or string'.format(key))
if account is None:
raise ValueError('You must provide an account to use to register a DID')
self.unlock_account(account)
transaction = self.register_attribute(did_source_id, value_type, key, value, account.address)
receipt = self.get_tx_receipt(transaction)
return receipt
def sign_practice(pt, et):
value = hex(long(Web3.sha3(pt), 16) ^ long(Web3.sha3(et), 16))
return value
def predict_contract_address(accountAddress):
nonce = int(MyGlobals.web3.eth.getTransactionCount(accountAddress))
adr = Web3.sha3(rlp.encode([normalize_address(accountAddress), nonce]),
encoding='bytes')[-40:]
return '0x' + adr
def gen_eth_private_key() -> bytes:
"""
Simple private key generation function. Not for production use.
"""
return Web3.sha3(os.urandom(4096))
def parse_insert_abi(abi):
def parse_inputs(func_inputs):
inputs = []
params = []
param_counter = 0
for r in func_inputs:
param_counter += 1
type_ = r['type']
name_ = r['name']
if len(name_) == 0:
name_ = 'param'+str(param_counter)
if name_[0] != '_':
name_ = '_'+name_
params.append({'type': r['type'], 'name': name_})
if 'tuple' not in type_:
inputs.append(type_)
else:
type_ = f"({parse_inputs(r['components'])[0]})" + type_[5:]
inputs.append(type_)
return ','.join(inputs), params
output = {}
for func in abi:
if func['type'] in ['constructor', 'fallback']:
continue
inputs, params = parse_inputs(func['inputs'])
fname = f"{func['name']}({inputs})"
sha3 = Web3.sha3(text=fname).hex()[:10]
if sha3 in output:
print("double declaration for the same hash! {}".format(fname))
continue
output[sha3] = {
'name': func['name'],
'folded_name': fname,
'params': params,
}
for sha3, row in output.items():
row['cooccurs'] = list(output.keys())
insert_row = (
sha3,
row['name'],
row['folded_name'],
json.dumps(row['params']),
','.join(row['cooccurs']))
insert_row2 = (
int(sha3, 16),
row['name'],
row['folded_name'],
json.dumps(row['params']))
test_hash, test_cooccurs = insert_row[0], insert_row[4]
cursor.execute('SELECT * from functions where hash=? and cooccurs=?', (test_hash, test_cooccurs))
results = cursor.fetchall()
if len(results) == 0:
print('inserting', sha3, row['folded_name'])
cursor.execute('INSERT INTO functions VALUES (?, ?, ?, ?, ?)', insert_row)
conn.commit()
cursor2.execute('SELECT * from functions where hash=?', (insert_row2[0], ))
results = cursor2.fetchall()
if len(results) == 0:
print('inserting2', sha3, row['folded_name'])
cursor2.execute('INSERT INTO functions VALUES (?, ?, ?, ?)', insert_row2)
conn2.commit()
def test_sha3_raise_if_hexstr_and_text():
with pytest.raises(TypeError):
Web3.sha3(hexstr='0x', text='')
def test_sha3_raise_if_no_args():
with pytest.raises(TypeError):
Web3.sha3()
def test_sha3_raise_if_primitive_and(kwargs):
# must not set more than one input
with pytest.raises(TypeError):
Web3.sha3('', **kwargs)
def test_sha3_primitive(primitive, digest):
assert Web3.sha3(primitive) == digest
def test_sha3_primitive_invalid(primitive, exception):
with pytest.raises(exception):
Web3.sha3(primitive)
def is_solved_checker(addr: str, web3: Web3) -> bool:
result = web3.eth.call({
"to": addr,
"data": web3.sha3(text="isSolved()")[:4],
})
return int(result.hex(), 16) == 1
def to_address(hexstr) -> str:
hashed = Web3.sha3(hexstr=hexstr)
address = Web3.toHex(hashed[-20:])
return address
def mk_logout_msg_signed(validator_index, epoch, validation_key):
msg_hash = Web3.sha3(rlp.encode([validator_index, epoch]))
signed = w3.eth.account.signHash(msg_hash, validation_key)
sig = encode_int32(signed.v) + encode_int32(signed.r) + encode_int32(
signed.s)
return rlp.encode([validator_index, epoch, sig])
def address_from_publickey(publickey):
hash = Web3.sha3(hexstr=Web3.toHex(publickey))
address = Web3.toHex(hash[-20:])
return address
def test_sha3_hexstr(hexstr, digest):
assert Web3.sha3(hexstr=hexstr) == digest
def method_id(method) -> str:
return Web3.sha3(text=method)[0:4].hex()
def encode_function_signature(func_name_with_types: str):
"""input example 'transfer(address,uint256)'"""
return eth_utils.to_hex(Web3.sha3(text=func_name_with_types))[:10]
def test_sha3_raise_if_hexstr_and_text():
with pytest.raises(TypeError):
Web3.sha3(hexstr='0x', text='')
def test_claimReward_with_settle_call(
token_network: Contract,
monitoring_service_external: Contract,
user_deposit_contract: Contract,
event_handler: Callable,
monitor_data: Dict,
ms_address: HexAddress,
web3: Web3,
with_settle: bool,
) -> None:
A, B = monitor_data["participants"]
channel_identifier = monitor_data["channel_identifier"]
# wait until MS is allowed to monitor
token_network.web3.testing.mine(monitor_data["first_allowed"] -
web3.eth.blockNumber)
# MS updates closed channel on behalf of B
txn_hash = monitoring_service_external.functions.monitor(
A,
B,
*monitor_data["balance_proof_B"],
monitor_data["non_closing_signature"],
REWARD_AMOUNT,
token_network.address,
monitor_data["reward_proof_signature"],
).call_and_transact({"from": ms_address})
# claiming before settlement timeout must fail
with pytest.raises(TransactionFailed, match="channel not settled yet"):
monitoring_service_external.functions.claimReward(
channel_identifier, token_network.address, A,
B).call({"from": ms_address})
# Settle channel after settle_timeout elapsed
token_network.web3.testing.mine(4)
if with_settle:
token_network.functions.settleChannel(
channel_identifier,
B, # participant_B
10, # participant_B_transferred_amount
0, # participant_B_locked_amount
LOCKSROOT_OF_NO_LOCKS, # participant_B_locksroot
A, # participant_A
20, # participant_A_transferred_amount
0, # participant_A_locked_amount
LOCKSROOT_OF_NO_LOCKS, # participant_A_locksroot
).call_and_transact()
# Claim reward for MS
monitoring_service_external.functions.claimReward(
channel_identifier, token_network.address, A,
B).call_and_transact({"from": ms_address})
# Check REWARD_CLAIMED event
reward_identifier = Web3.sha3(
encode_single("uint256", channel_identifier) +
Web3.toBytes(hexstr=token_network.address))
ms_ev_handler = event_handler(monitoring_service_external)
ms_ev_handler.assert_event(
txn_hash,
MonitoringServiceEvent.REWARD_CLAIMED,
dict(ms_address=ms_address,
amount=REWARD_AMOUNT,
reward_identifier=reward_identifier),
)
# Check that MS balance has increased by claiming the reward
ms_balance_after_reward = user_deposit_contract.functions.balances(
ms_address).call()
assert ms_balance_after_reward == REWARD_AMOUNT
def test_sha3_raise_if_no_args():
with pytest.raises(TypeError):
Web3.sha3()
def compose_sol_data(method_name_params, params):
method_name_params = method_name_params.replace('uint,',
'uint256,').replace(
'uint)', 'uint256)')
fn_selector = Web3.toHex(Web3.sha3(text=method_name_params))
fn_selector = fn_selector[0:10]
print('function: ', method_name_params, ', function selector: ',
fn_selector)
param_types = []
argstr = method_name_params.split('(')[1].split(')')[0]
if argstr.strip():
methodParams = argstr.split(',')
for i in range(len(methodParams)):
param_types.append(methodParams[i])
# print('param_types', param_types, 'len: ', len(param_types))
print('params', params, 'len: ', len(params))
if (len(param_types) != len(params)):
print('!!!parameters number is wrong.')
return
params_list = []
for i in range(len(param_types)):
params_list.append((param_types[i], params[i]))
# print('params_list: ', params_list)
first_list = [fn_selector]
second_list = {}
for i in range(len(params_list)):
item = params_list[i]
p_type, p_value = item[0], item[1]
if p_type in ('bytes', 'string'):
str_len, str_txt = rlp(p_value)
result = str_len + str_txt
second_list[i] = result
pass
elif '[]' in p_type:
pass
else:
pass
first_list = []
param_num = len(param_types)
start_pos = param_num * 32
last_len = 0
for i in range(len(params_list)):
item = params_list[i]
p_type, p_value = item[0], item[1]
if p_type in ('bytes', 'string') or '[]' in p_type:
# print('last_len=', last_len)
first_list.append(
str(Web3.toHex(start_pos + last_len))[2:].zfill(64)) # 起始位置
last_len += int(len(second_list[i]) / 2)
# start_pos += last_len
elif p_type == 'address':
first_list.append(p_value.zfill(64))
else:
first_list.append(str(Web3.toHex(p_value))[2:].zfill(64)) # 固定类型的值
# print(first_list)
# print()
# print(second_list.values())
# print()
first_list += second_list.values()
result_str = ''
for part in first_list:
result_str += part
# print('final data: ', fn_selector+result_str)
return fn_selector + result_str
def test_sha3_text(message, digest):
assert Web3.sha3(text=message) == digest
def __init__(self, l, r):
self.l = l
self.r = r
self.h = Web3.sha3(l.h + r.h)
def test_sha3_hexstr(hexstr, digest):
assert Web3.sha3(hexstr=hexstr) == digest
def get_sha3(_txt):
"""
Returns keccak sha256 hash
"""
return Web3.sha3(text=_txt).hex()
def test_sha3_primitive_invalid(primitive, exception):
with pytest.raises(exception):
Web3.sha3(primitive)
print("Function: %s" % (input[0:10]))
input = input[10:]
for j in range(len(input) // 64):
print("Arg[%d]: %s" % (j + 1, input[j * 64:(j + 1) * 64]))
for log in rcpt['logs']:
print('Event address: ', log['address'])
for i, topic in enumerate(log['topics']):
print('Event topic %d: %s' % (i, topic.hex()))
for i in range(len(log['data']) // 64):
print("Event arg %d: %s" % (i, log['data'][i * 64:(i + 1) * 64]))
return tx
hash = Web3.sha3(
text='createSaleAuction(uint256,uint256,uint256,uint256)').hex()[0:10]
print(hash)
start_timestamp = datetime.now()
address = '0x06012c8cf97BEaD5deAe237070F9587f8E7A266d'
blockNum = 5272293
count = 0
while blockNum <= w3.eth.blockNumber and count <= 10:
block = w3.eth.getBlock(blockNum)
print("Block: %d: %s, %d \n" %
(blockNum, block.hash.hex(), len(block.transactions)))
for i in range(len(block.transactions)):
tx = w3.eth.getTransaction(block.transactions[i])
if tx['to'] == address:
print("Block: %d Tx: %d: From: %s, Value: %d" %
def test_sha3_primitive(primitive, digest):
assert Web3.sha3(primitive) == digest
def calculate_submit_hash_from_group(vals):
hash_sums = [Web3.toInt(hexstr=val) for val in vals]
return Web3.toHex(Web3.toInt(Web3.sha3(sum(hash_sums) & (2**256 - 1))))
def test_sha3_raise_if_primitive_and(kwargs):
# must not set more than one input
with pytest.raises(TypeError):
Web3.sha3('', **kwargs)
def public_key_to_address(pk):
hash_ = Web3.sha3(hexstr=str(pk))
return Web3.toChecksumAddress(Web3.toHex(hash_[-20:]))
def sign_practice(pt, et):
print Web3.sha3(pt)
return hex(long(Web3.sha3(pt), 16) ^ long(Web3.sha3(et), 16))
def eth_sign_hash_message(encoded_message):
signature_prefix = '\x19Ethereum Signed Message:\n'
return Web3.sha3(
Web3.toBytes(text=signature_prefix) +
Web3.toBytes(text=str(len(encoded_message))) + encoded_message, )
def test_sha3_text(message, digest):
assert Web3.sha3(text=message) == digest
