def test_ecrecover():
s = tester.state()
c = s.abi_contract(ecrecover_code)
priv = utils.sha3('some big long brainwallet password')
pub = bitcoin.privtopub(priv)
msghash = utils.sha3('the quick brown fox jumps over the lazy dog')
pk = PrivateKey(priv, raw=True)
signature = pk.ecdsa_recoverable_serialize(
pk.ecdsa_sign_recoverable(msghash, raw=True)
)
signature = signature[0] + utils.bytearray_to_bytestr([signature[1]])
V = utils.safe_ord(signature[64]) + 27
R = big_endian_to_int(signature[0:32])
S = big_endian_to_int(signature[32:64])
assert bitcoin.ecdsa_raw_verify(msghash, (V, R, S), pub)
addr = utils.big_endian_to_int(utils.sha3(bitcoin.encode_pubkey(pub, 'bin')[1:])[12:])
assert utils.big_endian_to_int(utils.privtoaddr(priv)) == addr
result = c.test_ecrecover(utils.big_endian_to_int(msghash), V, R, S)
assert result == addr
def sender(self):
if not self._sender:
# Determine sender
if self.v:
if self.r >= N or self.s >= N or self.v < 27 or self.v > 28 \
or self.r == 0 or self.s == 0:
raise InvalidTransaction("Invalid signature values!")
log.debug('recovering sender')
rlpdata = rlp.encode(self, UnsignedTransaction)
rawhash = utils.sha3(rlpdata)
pk = PublicKey(flags=ALL_FLAGS)
try:
pk.public_key = pk.ecdsa_recover(
rawhash,
pk.ecdsa_recoverable_deserialize(
zpad(utils.bytearray_to_bytestr(int_to_32bytearray(self.r)), 32) + zpad(utils.bytearray_to_bytestr(int_to_32bytearray(self.s)), 32),
self.v - 27
),
raw=True
)
pub = pk.serialize(compressed=False)
except Exception:
raise InvalidTransaction("Invalid signature values (x^3+7 is non-residue)")
if pub[1:] == b"\x00" * 32:
raise InvalidTransaction("Invalid signature (zero privkey cannot sign)")
pub = encode_pubkey(pub, 'bin')
self._sender = utils.sha3(pub[1:])[-20:]
assert self.sender == self._sender
else:
self._sender = 0
return self._sender
def __init__(self, app):
log.info("Casper service init")
self.db = app.services.db
self.bcast = app.services.peermanager.broadcast
cfg = app.config['casper']
self.account = app.services.accounts.get_by_address(app.services.accounts.coinbase)
self.privkey = self.account.privkey
if 'network_id' in self.db:
db_network_id = self.db.get('network_id')
if db_network_id != str(cfg['network_id']):
raise RuntimeError(
"The database in '{}' was initialized with network id {} and can not be used "
"when connecting to network id {}. Please choose a different data directory.".format(
app.config['db']['data_dir'], db_network_id, cfg['network_id']
)
)
else:
self.db.put('network_id', str(cfg['network_id']))
self.db.commit()
self.epoch_length = cfg['epoch_length']
self.epoch_source = -1
self.epoch = 0
self.ancestry_hash = sha3('')
self.source_ancestry_hash = sha3('')
self.chain = app.services.chain
self.genesis = self.chain.block(cfg['genesis_hash'])
assert self.genesis
assert self.genesis['number'] % self.epoch_length == 0
self.store = LevelDBStore(self.db, self.epoch_length, self.genesis)
self.validator = self.store.validator(cfg['validator_id'])
super(CasperService, self).__init__(app)
def sender(self):
if not self._sender:
# Determine sender
if self.r == 0 and self.s == 0:
self._sender = null_address
else:
if self.v in (27, 28):
vee = self.v
sighash = utils.sha3(rlp.encode(self, UnsignedTransaction))
elif self.v >= 37:
vee = self.v - self.network_id * 2 - 8
assert vee in (27, 28)
rlpdata = rlp.encode(rlp.infer_sedes(self).serialize(self)[
:-3] + [self.network_id, '', ''])
sighash = utils.sha3(rlpdata)
else:
raise InvalidTransaction("Invalid V value")
if self.r >= secpk1n or self.s >= secpk1n or self.r == 0 or self.s == 0:
raise InvalidTransaction("Invalid signature values!")
pub = ecrecover_to_pub(sighash, vee, self.r, self.s)
if pub == b'\x00' * 64:
raise InvalidTransaction(
"Invalid signature (zero privkey cannot sign)")
self._sender = utils.sha3(pub)[-20:]
return self._sender
def generate_accounts(seeds):
"""Create private keys and addresses for all seeds.
"""
return {
seed: dict(
privatekey=encode_hex(sha3(seed)),
address=encode_hex(privatekey_to_address(sha3(seed)))
) for seed in seeds}
def test_webui(): # pylint: disable=too-many-locals
num_assets = 3
num_nodes = 10
assets_addresses = [
sha3('webui:asset:{}'.format(number))[:20]
for number in range(num_assets)
]
private_keys = [
sha3('webui:{}'.format(position))
for position in range(num_nodes)
]
BlockChainServiceMock._instance = True
blockchain_service= BlockChainServiceMock(None, MOCK_REGISTRY_ADDRESS)
# overwrite the instance
BlockChainServiceMock._instance = blockchain_service # pylint: disable=redefined-variable-type
registry = blockchain_service.registry(MOCK_REGISTRY_ADDRESS)
for asset in assets_addresses:
registry.add_asset(asset)
channels_per_node = 2
deposit = 100
app_list = create_network(
private_keys,
assets_addresses,
MOCK_REGISTRY_ADDRESS,
channels_per_node,
deposit,
DEFAULT_SETTLE_TIMEOUT,
UDPTransport,
BlockChainServiceMock
)
app0 = app_list[0]
addresses = [
app.raiden.address.encode('hex')
for app in app_list
if app != app_list[0]
]
print '\nCreated nodes: \n',
for node in addresses:
print node
setup_messages_cb()
app0_assets = getattr(app0.raiden.api, 'assets')
print '\nAvailable assets:'
for asset in app0_assets:
print asset.encode('hex')
print '\n'
wamp = WAMPRouter(app0.raiden, 8080, ['channel', 'test'])
wamp.run()
def run_ethash_test(params, mode):
if 'header' not in params:
b = blocks.genesis(db)
b.nonce = decode_hex(params['nonce'])
b.number = params.get('number', 0)
header = b.header
params['header'] = encode_hex(rlp.encode(b.header))
else:
header = blocks.BlockHeader(decode_hex(params['header']))
header_hash = header.mining_hash
cache_size = ethash.get_cache_size(header.number)
full_size = ethash.get_full_size(header.number)
seed = b'\x00' * 32
for i in range(header.number // ethash_utils.EPOCH_LENGTH):
seed = utils.sha3(seed)
nonce = header.nonce
assert len(nonce) == 8
assert len(seed) == 32
t1 = time.time()
cache = ethash.mkcache(cache_size, seed)
t2 = time.time()
cache_hash = encode_hex(utils.sha3(ethash.serialize_cache(cache)))
t6 = time.time()
light_verify = ethash.hashimoto_light(full_size, cache, header_hash, nonce)
t7 = time.time()
# assert full_mine == light_mine
out = {
"seed": encode_hex(seed),
"header_hash": encode_hex(header_hash),
"nonce": encode_hex(nonce),
"cache_size": cache_size,
"full_size": full_size,
"cache_hash": cache_hash,
"mixhash": encode_hex(light_verify["mix digest"]),
"result": encode_hex(light_verify["result"]),
}
if mode == FILL:
header.mixhash = light_verify["mixhash"]
params["header"] = encode_hex(rlp.encode(header))
for k, v in list(out.items()):
params[k] = v
return params
elif mode == VERIFY:
should, actual = header.mixhash, light_verify['mixhash']
assert should == actual, "Mismatch: mixhash %r %r" % (should, actual)
for k, v in list(out.items()):
assert params[k] == v, "Mismatch: " + k + ' %r %r' % (params[k], v)
elif mode == TIME:
return {
"cache_gen": t2 - t1,
"verification_time": t7 - t6
}
def sender(self):
if not self._sender:
# Determine sender
if self.v:
if self.r >= N or self.s >= P or self.v < 27 or self.v > 28:
raise InvalidTransaction("Invalid signature values!")
log.debug('recovering sender')
rlpdata = rlp.encode(self, UnsignedTransaction)
rawhash = utils.sha3(rlpdata)
pub = encode_pubkey(ecdsa_raw_recover(rawhash, (self.v, self.r, self.s)), 'bin')
self._sender = utils.sha3(pub[1:])[-20:]
assert self.sender == self._sender
else:
self._sender = 0
return self._sender
def test_string_logging():
s = tester.state()
c = s.abi_contract(string_logging_code)
o = []
s.block.log_listeners.append(lambda x: o.append(c.translator.listen(x)))
c.moo()
assert o == [{
"_event_type": b"foo",
"x": b"bob",
"__hash_x": utils.sha3(b"bob"),
"y": b"cow",
"__hash_y": utils.sha3(b"cow"),
"z": b"dog",
"__hash_z": utils.sha3(b"dog"),
}]
def test_eth_call(rpc_client, accounts):
txn_hash = rpc_client(
method="eth_sendTransaction",
params=[{
"from": accounts[0],
"data": CONTRACT_BIN,
"value": 1234,
}],
)
txn_receipt = rpc_client(
method="eth_getTransactionReceipt",
params=[txn_hash],
)
contract_address = txn_receipt['contractAddress']
assert contract_address
function_sig = encode_data(sha3("return13()")[:4])
should_be_13 = rpc_client(
method="eth_call",
params=[{
"from": accounts[0],
"to": contract_address,
"data": function_sig,
}],
)
result = big_endian_to_int(decode_hex(should_be_13[2:]))
assert result == 13
def test():
t.gas_price = 0
s = t.state()
c = s.abi_contract('gamble.se')
rseed = os.urandom(32)
seed1 = utils.sha3(rseed)
c.set_curseed(seed1)
s.block.set_balance(c.address, 27000)
totbal = sum([s.block.get_balance(x) for x in t.accounts])
# 90 bets succeed (bet with 25% winning probability)
for i in range(90):
assert c.bet(utils.zpad(str(i), 32), 250, sender=t.keys[i % 10], value=100) >= 0
# 10 bets fail due to not enough collateral
for i in range(90, 100):
assert c.bet(utils.zpad(str(i), 32), 250, sender=t.keys[i % 10], value=100) == -2
# Add more collateral
s.block.delta_balance(c.address, 3000)
# 10 bets succeed
for i in range(90, 100):
assert c.bet(utils.zpad(str(i), 32), 250, sender=t.keys[i % 10], value=100) >= 0
# 10 bets fail due to limit of 100
for i in range(100, 110):
assert c.bet(utils.zpad(str(i), 32), 250, sender=t.keys[i % 10], value=100) == -1
mid_totbal = sum([s.block.get_balance(x) for x in t.accounts])
assert c.set_curseed(rseed, os.urandom(32))
# Check that a reasonable number of bets succeeded
new_totbal = sum([s.block.get_balance(x) for x in t.accounts])
print 'Profit: ', totbal - new_totbal
assert -4000 < (new_totbal - totbal) < 7000
assert 26000 < s.block.get_balance(c.address) < 37000
def benchmark(size):
t = trie.Trie(db.EphemDB())
for i in range(size):
t.update(utils.sha3('k'+str(i)), utils.sha3('v'+str(i)))
sz = sum([len(v) for k, v in t.db.db.items()])
nsz = []
ldb = db.ListeningDB(t.db.db)
for i in range(min(size, 100)):
ldb2 = db.ListeningDB(ldb)
odb = t.db
t.db = ldb2
t.get(utils.sha3('k'+str(i)))
nsz.append(sum([len(v) for k, v in ldb2.kv.items()]))
t.db = odb
ldbsz = sum([len(v) for k, v in ldb.kv.items()])
print sz, sum(nsz) // len(nsz), ldbsz
def test_ssv(chain, accounts, storage_slots):
# get log reader
sj = chain.storage.db # state journal
sj.commit()
lr = statejournal.JournalReader(sj.db)
# validate full chain
if False:
state = lr.validate_state(sj.update_counter)
assert state == sj.state_digest
assert state == lr.last_update()['state_digest']
# get ssv ################
# read first (oldest entry)
counter = 1
k = accounts[0]
v = int_to_big_endian(counter)
k += v
# get the proof
val, update_counter = sj.get_raw(k)
proof = lr.get_ssv(update_counter)
assert proof['value'] == val, (big_endian_to_int(proof['value']), val)
hash_chain = proof['hash_chain']
assert len(hash_chain)
s = hash_chain[0]
for h in hash_chain[1:]:
s = sha3(s + h)
assert s == sj.state_digest
def handle_secret(self, identifier, secret):
""" Unlock locks, register the secret, and send Secret messages as
necessary.
This function will:
- Unlock the locks created by this node and send a Secret message to
the corresponding partner so that she can withdraw the asset.
- Register the secret for the locks received and reveal the secret
to the senders
Note:
The channel needs to be registered with
`register_channel_for_hashlock`.
"""
# handling the secret needs to:
# - unlock the asset for all `forward_channel` (the current one
# and the ones that failed with a refund)
# - send a message to each of the forward nodes allowing them
# to withdraw the asset
# - register the secret for the `originating_channel` so that a
# proof can be made, if necessary
# - reveal the secret to the `sender` node (otherwise we
# cannot withdraw the asset)
hashlock = sha3(secret)
self._secret(identifier, secret, None, hashlock)
def __init__(self, chain, receiver, tx_num):
assert isinstance(receiver, int)
sender = config['num_accounts'] - receiver
self.hash = sha3(str(tx_num))
# increase nonce
Account(chain, sender).update_nonce()
# receiving account
account = Account(chain, receiver)
reads = int(config['storage_reads'](tx_num))
reads = min(reads, account.storage_slots)
updates = int(reads / config['storage_read_update_ratio'])
deletes = int(updates / config['storage_read_delete_ratio'])
# print reads, updates, deletes
assert updates + deletes <= reads
if not reads: # simple value transfer
account.update_balance(tx_num)
return
# read, update, write
for i in range(reads):
i += tx_num
v = account.read(i)
if i < updates:
account.store(i, v+i+tx_num)
elif i < updates + deletes:
account.delete(i)
def signing_hash(self):
return sha3(
'commit%s%s' % (
encode_int32(self.epoch),
self.hash
)
)
def test_statejournal_read(chain):
# validate chain
sj = chain.storage.db # state journal
sj.commit()
lr = statejournal.JournalReader(sj.db)
state = lr.validate_state(sj.update_counter)
assert state == sj.state
# get ssv ################
for i in range(config['num_accounts']):
account = Account(chain, i)
keys = account.keys()
if keys:
break
assert len(keys)
print 'keys found', account
k = keys[0]
val, update_counter = sj.get_raw(k)
proof = lr.get_ssv(update_counter)
assert proof['value'] == val
hash_chain = proof['hash_chain']
assert len(hash_chain)
s = hash_chain[0]
for h in hash_chain[1:]:
s = sha3(s + h)
assert s == sj.state
def test():
t.gas_price = 0
s = t.state()
c = s.abi_contract("randao.se")
votes = []
ids = []
xor = 0
for i in range(5):
r = random.randrange(2 ** 256)
xor ^= r
votes.append(utils.zpad(utils.encode_int(r), 32))
f = c.getFee()
for i in range(5):
ids.append(c.submitHash(utils.sha3(votes[i]), value=f))
while c.getPhase() == 0:
s.mine(10)
for i in range(5):
c.submitValue(ids[i], votes[i])
while c.getPhase() == 1:
s.mine(10)
c.claimResults()
assert c.getNextResultPos() == 1
assert c.getResult(0) == utils.zpad(utils.encode_int(xor), 32), (
c.getResult(0),
utils.zpad(utils.encode_int(xor), 32),
)
def test_ecrecover():
s = tester.state()
c = s.abi_contract(ecrecover_code)
priv = encode_hex(utils.sha3('some big long brainwallet password'))
pub = bitcoin.privtopub(priv)
msghash = encode_hex(utils.sha3('the quick brown fox jumps over the lazy dog'))
V, R, S = bitcoin.ecdsa_raw_sign(msghash, priv)
assert bitcoin.ecdsa_raw_verify(msghash, (V, R, S), pub)
addr = utils.big_endian_to_int(utils.sha3(bitcoin.encode_pubkey(pub, 'bin')[1:])[12:])
assert utils.big_endian_to_int(utils.privtoaddr(priv)) == addr
result = c.test_ecrecover(utils.big_endian_to_int(decode_hex(msghash)), V, R, S)
assert result == addr
def _check_pow(header):
number = big_endian_to_int(header[8])
difficulty = big_endian_to_int(header[7])
mixhash = header[13]
nonce = header[14]
mining_hash = sha3(rlp.encode(header[:13]))
assert check_pow(number, mining_hash, mixhash, nonce, difficulty)
def test_decode_transfer():
encoded_data = "0500000000000000000000010bd4060688a1800ae986e4840aebc924bb40b5bf3893263bf8b2d0373a34b8d359c5edd823110747000000000000000000000000000000000000000000000000000000000000000160d09b4687c162154b290ee5fcbd7c6285590969b3c873e94b690ee9c4f5df510000000000000000000000000000000000000000000000000000000000000000ff9636ccb66e73219fd166cd6ffbc9c6215f74ff31c1fd4131cf532b29ee096f65278c459253fba65bf019c723a68bb4a6153ea8378cd1b15d55825e1a291b6f00"
bad_encoded_data = "0500000000000000000000010bd4060688a1800ae986e4840aebc924bb40b5bf3893263bf8b2d0373a34b8d359c5edd823110747000000000000000000000000000000000000000000000000000000000000000160d09b4687c162154b290ee5fcbd7c6285590969b3c873e94b690ee9c4f5df510000000000000000000000000000000000000000000000000000000000000000ff9636ccb66e73219fd166cd6ffbc9c6215f74ff31c1fd4131cf532b29ee096f65278c459253fba65bf019c723a68bb4a6153ea8378cd1b15d55825e1a291b6f0001"
data = encoded_data.decode("hex")
bad_data = bad_encoded_data.decode("hex")
s = tester.state()
c = s.abi_contract(decode_code, language="solidity")
o1 = c.decodeTransfer(data)
assert data[0] == "\x05" # make sure data has right cmdid
assert len(data) == 213
nonce = o1[0]
assert nonce == 1
asset = o1[1]
assert asset == sha3("asset")[:20].encode("hex")
recipient = o1[2]
assert len(recipient) == 40
assert recipient == privtoaddr("y" * 32).encode("hex")
balance = o1[3]
assert balance == 1
optionalLocksroot = o1[4]
assert optionalLocksroot == "60d09b4687c162154b290ee5fcbd7c6285590969b3c873e94b690ee9c4f5df51".decode("hex")
optionalSecret = o1[5]
assert optionalSecret == "0000000000000000000000000000000000000000000000000000000000000000".decode("hex")
signature = "ff9636ccb66e73219fd166cd6ffbc9c6215f74ff31c1fd4131cf532b29ee096f65278c459253fba65bf019c723a68bb4a6153ea8378cd1b15d55825e1a291b6f00".decode(
"hex"
)
r = o1[6]
s = o1[7]
v = o1[8]
assert r == signature[:32]
assert s == signature[32:64]
assert v == int(signature[64].encode("hex"))
with pytest.raises(TransactionFailed):
c.decodeSecret(bad_data)
def setup_apps(amount, assets, num_transfers, num_nodes, channels_per_node):
assert len(assets) <= num_nodes
deposit = amount * num_transfers
private_keys = [
sha3('mediated_transfer:{}'.format(position))
for position in range(num_nodes)
]
BlockChainServiceMock.reset()
blockchain_services = list()
for privkey in private_keys:
blockchain = BlockChainServiceMock(
privkey,
MOCK_REGISTRY_ADDRESS,
)
blockchain_services.append(blockchain)
registry = blockchain_services[0].registry(MOCK_REGISTRY_ADDRESS)
for asset in assets:
registry.add_asset(asset)
verbosity = 3
apps = create_network(
blockchain_services,
assets,
channels_per_node,
deposit,
DEFAULT_SETTLE_TIMEOUT,
UDPTransport,
verbosity,
)
return apps
def new_block(block, use_parent=True):
"""Create a new block based on a parent block.
The block will not include any transactions and will not be finalized.
"""
parent = block.get_parent()
header = BlockHeader(prevhash=parent.hash,
uncles_hash=utils.sha3(rlp.encode([])),
coinbase=block.coinbase,
state_root=parent.state_root if use_parent else block.state_root,
tx_list_root=trie.BLANK_ROOT,
receipts_root=trie.BLANK_ROOT,
bloom=0,
difficulty=block.difficulty,
mixhash='',
number=parent.number + 1,
gas_limit=block.gas_limit,
gas_used=0,
timestamp=block.timestamp,
extra_data=block.extra_data,
nonce=b'')
block = Block(header, [], [], env=parent.env if use_parent else block.env,
parent=parent, making=True)
block.ancestor_hashes = [parent.hash] + parent.ancestor_hashes
block.log_listeners = parent.log_listeners
return block
def hash_array(arr):
o = ''
for x in arr:
if isinstance(x, (int, long)):
x = utils.zpad(utils.encode_int(x), 32)
o += x
return utils.big_endian_to_int(utils.sha3(o))
def register_secret(self, secret):
""" Handle a secret that could be received from a Secret message or a
ChannelSecretRevealed event.
"""
hashlock = sha3(secret)
channels_reveal = self.hashlock_channel[hashlock]
secret_message = Secret(secret)
self.raiden.sign(secret_message)
while channels_reveal:
reveal_to = channels_reveal.pop()
# send the secret to all channels registered, including the next
# hop that might be the node that informed us about the secret
self.raiden.send(reveal_to.partner_state.address, secret_message)
# update the channel by claiming the locked transfers
try:
reveal_to.claim_locked(secret)
except InvalidSecret:
log.error('claiming lock failed')
assert len(self.hashlock_channel[hashlock]) == 0
del self.hashlock_channel[hashlock]
def __init__(self, genesis, key, network, env, time_offset=5):
# Create a chain object
self.chain = Chain(genesis, env=env)
# Use the validator's time as the chain's time
self.chain.time = lambda: self.get_timestamp()
# My private key
self.key = key
# My address
self.address = privtoaddr(key)
# My randao
self.randao = RandaoManager(sha3(self.key))
# Pointer to the test p2p network
self.network = network
# Record of objects already received and processed
self.received_objects = {}
# The minimum eligible timestamp given a particular number of skips
self.next_skip_count = 0
self.next_skip_timestamp = 0
# This validator's indices in the state
self.indices = None
# Code that verifies signatures from this validator
self.validation_code = generate_validation_code(privtoaddr(key))
# Parents that this validator has already built a block on
self.used_parents = {}
# This validator's clock offset (for testing purposes)
self.time_offset = random.randrange(time_offset) - (time_offset // 2)
# Give this validator a unique ID
self.id = len(ids)
ids.append(self.id)
self.find_my_indices()
self.cached_head = self.chain.head_hash
def create_and_distribute_token(client, receivers,
amount_per_receiver=1000,
name=None,
gasprice=denoms.shannon * 20,
timeout=120):
"""Create a new ERC-20 token and distribute it among `receivers`.
If `name` is None, the name will be derived from hashing all receivers.
"""
name = name or sha3(''.join(receivers)).encode('hex')
token_proxy = client.deploy_solidity_contract(
client.sender,
'HumanStandardToken',
compile_file(get_contract_path('HumanStandardToken.sol')),
dict()
(
len(receivers) * amount_per_receiver,
name,
2, # decimals
name[:4].upper() # symbol
),
gasprice=gasprice,
timeout=timeout
)
for receiver in receivers:
token_proxy.transfer(receiver, amount_per_receiver)
return token_proxy.address.encode('hex')
def _run(self): # pylint: disable=method-hidden
transfer = self.originating_transfer
assetmanager = self.transfermanager.assetmanager
raiden = assetmanager.raiden
transfer_details = '{} -> {} hash:{}'.format(
pex(transfer.target),
pex(transfer.initiator),
pex(transfer.hash),
)
log.debug('END MEDIATED TRANSFER {}'.format(transfer_details))
secret_request = SecretRequest(transfer.lock.hashlock)
raiden.sign(secret_request)
raiden.send(transfer.initiator, secret_request)
self.event = AsyncResult()
response = self.event.wait(raiden.config['msg_timeout'])
if response is None:
log.error('SECRETREQUEST TIMED OUT!')
self.transfermanager.on_hashlock_result(transfer.hashlock, False)
return
if not isinstance(response, Secret):
raise Exception('Invalid message received.')
if sha3(response.secret) != transfer.lock.hashlock:
raise Exception('Invalid secret received.')
# update all channels and propagate the secret
assetmanager.register_secret(response.secret)
self.transfermanager.on_hashlock_result(transfer.lock.hashlock, True)
def create_node_configuration(miner=True,
port=30301,
rpcport=8101,
host='127.0.0.1',
node_key_seed=0):
"""
Create configuration (ports, keys, etc...) for one node.
:param miner: if True, setup to be a mining node
:param port: the p2p port to assign
:param rpcport: the port to assign
:param host: the host for the node to run on
:return: node configuration dict
"""
node = dict()
if miner:
node['minerthreads'] = 1 # conservative
node['unlock'] = 0
node['nodekey'] = sha3('node:{}'.format(node_key_seed))
node['nodekeyhex'] = encode_hex(node['nodekey'])
node['pub'] = encode_hex(privtopub_enode(node['nodekey']))
node['address'] = privatekey_to_address(node['nodekey'])
node['host'] = host
node['port'] = port
node['rpcport'] = rpcport
node['enode'] = 'enode://{pub}@{host}:{port}'.format(**node)
return node
def init_from_parent(cls, parent, coinbase, nonce=b'', extra_data=b'',
timestamp=int(time.time()), uncles=[]):
"""Create a new block based on a parent block.
The block will not include any transactions and will not be finalized.
"""
header = BlockHeader(prevhash=parent.hash,
uncles_hash=utils.sha3(rlp.encode(uncles)),
coinbase=coinbase,
state_root=parent.state_root,
tx_list_root=trie.BLANK_ROOT,
receipts_root=trie.BLANK_ROOT,
bloom=0,
difficulty=calc_difficulty(parent, timestamp),
mixhash='',
number=parent.number + 1,
gas_limit=calc_gaslimit(parent),
gas_used=0,
timestamp=timestamp,
extra_data=extra_data,
nonce=nonce)
block = Block(header, [], uncles, db=parent.db,
parent=parent, making=True)
block.ancestor_hashes = [parent.hash] + parent.ancestor_hashes
return block
import signal
from subprocess import Popen, PIPE
from ethereum.utils import denoms, sha3, privtoaddr, encode_hex
from devp2p.crypto import privtopub as privtopub_enode
# DEFAULTS
NUM_GETH_NODES = 3
NUM_RAIDEN_ACCOUNTS = 10
CLUSTER_NAME = 'raiden'
RAIDEN_PORT = 40001
DEFAULT_PW = 'notsosecret'
# a list of `num_raiden_accounts` account addresses with a predictable privkey:
# privkey = sha3('127.0.0.1:`raiden_port + i`')
DEFAULTACCOUNTS = [
encode_hex(privtoaddr(sha3('127.0.0.1:{}'.format(RAIDEN_PORT + i))))
for i in range(NUM_RAIDEN_ACCOUNTS)
]
# default args to pass to `geth` for all calls, e.g. verbosity, ...
DEFAULT_ARGS = [
'--nodiscover',
'--rpc',
'--networkid {}'.format(sum(ord(c) for c in CLUSTER_NAME)),
]
# the node specific arguments to pass to `geth` that will be extracted from a
# 'node configuration'
NODE_CONFIG = [
'nodekeyhex',
'port',
def merkle_hash(self):
return utils.sha3(self.hash + self.sig1 + self.sig2)
def get_empty_merkle_tree_hash(depth):
zeroes_hash = NULL_HASH
for _ in range(depth):
zeroes_hash = u.sha3(zeroes_hash + zeroes_hash)
return zeroes_hash
from ethereum.pow import chain
from ethereum.transactions import Transaction
from ethereum.consensus_strategy import get_consensus_strategy
from ethereum.config import config_homestead, config_tangerine, config_spurious, config_metropolis, default_config, Env
from ethereum.pow.ethpow import Miner
from ethereum.messages import apply_transaction
from ethereum.common import verify_execution_results, mk_block_from_prevstate, set_execution_results
from ethereum.meta import make_head_candidate
from ethereum.abi import ContractTranslator
import rlp
# Initialize accounts
accounts = []
keys = []
for account_number in range(10):
keys.append(sha3(to_string(account_number)))
accounts.append(privtoaddr(keys[-1]))
k0, k1, k2, k3, k4, k5, k6, k7, k8, k9 = keys[:10]
a0, a1, a2, a3, a4, a5, a6, a7, a8, a9 = accounts[:10]
base_alloc = {}
minimal_alloc = {}
for a in accounts:
base_alloc[a] = {'balance': 10**18}
for i in range(1, 9):
base_alloc[int_to_addr(i)] = {'balance': 1}
minimal_alloc[int_to_addr(i)] = {'balance': 1}
minimal_alloc[accounts[0]] = {'balance': 10**18}
# Initialize languages
import random
from toshi.log import configure_logger, log_unhandled_exceptions
from toshi.ethereum.utils import data_decoder
from ethereum.utils import sha3
from ethereum.abi import decode_abi, process_type, decode_single
from toshi.utils import parse_int
from toshieth.collectibles.base import CollectiblesTaskManager
from urllib.parse import urlparse
from tornado.httpclient import AsyncHTTPClient
from tornado.escape import json_decode
log = logging.getLogger("toshieth.fungible")
ASSET_CREATED_TOPIC = "0xa34547120a941eab43859acf535a121237e5536fd476dccda8174fb1af6926ed"
ASSET_TRANSFER_TOPIC = "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
TOKEN_URI_CALL_DATA = "0x" + sha3("tokenURI()")[:4].hex() + "0" * 56
NAME_CALL_DATA = "0x" + sha3("name()")[:4].hex() + "0" * 56
CREATOR_CALL_DATA = "0x" + sha3("creator()")[:4].hex() + "0" * 56
TOTAL_SUPPLY_CALL_DATA = "0x" + sha3("totalSupply()")[:4].hex() + "0" * 56
class FungibleCollectibleTaskManager(CollectiblesTaskManager):
def __init__(self):
super().__init__()
configure_logger(log)
self._processing = {}
self._queue = set()
async def process_block(self, blocknumber=None):
async with self.pool.acquire() as con:
def get_state_variable_from_storage(self, address, params=[]):
(position, length, mappings) = (0, 1, [])
try:
if params[0] == "mapping":
if len(params) < 3:
raise CriticalError("Invalid number of parameters.")
position = int(params[1])
position_formatted = utils.zpad(
utils.int_to_big_endian(position), 32)
for i in range(2, len(params)):
key = bytes(params[i], 'utf8')
key_formatted = utils.rzpad(key, 32)
mappings.append(
int.from_bytes(utils.sha3(key_formatted +
position_formatted),
byteorder='big'))
length = len(mappings)
if length == 1:
position = mappings[0]
else:
if len(params) >= 4:
raise CriticalError("Invalid number of parameters.")
if len(params) >= 1:
position = int(params[0])
if len(params) >= 2:
length = int(params[1])
if len(params) == 3 and params[2] == "array":
position_formatted = utils.zpad(
utils.int_to_big_endian(position), 32)
position = int.from_bytes(utils.sha3(position_formatted),
byteorder='big')
except ValueError:
raise CriticalError(
"Invalid storage index. Please provide a numeric value.")
outtxt = []
try:
if length == 1:
outtxt.append("{}: {}".format(
position, self.eth.eth_getStorageAt(address, position)))
else:
if len(mappings) > 0:
for i in range(0, len(mappings)):
position = mappings[i]
outtxt.append("{}: {}".format(
hex(position),
self.eth.eth_getStorageAt(address, position)))
else:
for i in range(position, position + length):
outtxt.append("{}: {}".format(
hex(i), self.eth.eth_getStorageAt(address, i)))
except FileNotFoundError as e:
raise CriticalError("IPC error: " + str(e))
except ConnectionError as e:
raise CriticalError(
"Could not connect to RPC server. Make sure that your node is running and that RPC parameters are set correctly."
)
return '\n'.join(outtxt)
def decodeABI(tinput, sig, returnVals):
abi = tinput[2:]
hash = utils.sha3(sig)[:4].encode('hex')
if abi[:8] != hash:
return None
return decode_abi(returnVals, abi[8:].decode('hex'))
from devp2p.app import BaseApp
from devp2p.discovery import NodeDiscovery
from devp2p.peermanager import PeerManager
from devp2p.service import BaseService
from ethereum.utils import encode_hex, decode_hex, sha3, privtopub
from casper import __version__
slogging.PRINT_FORMAT = '%(asctime)s %(name)s:%(levelname).1s\t%(message)s'
log = slogging.get_logger('app')
services = [
NodeDiscovery, PeerManager, DBService, AccountsService, ChainService,
CasperService
]
privkeys = [encode_hex(sha3(i)) for i in range(100, 200)]
pubkeys = [encode_hex(privtopub(decode_hex(k))[1:]) for k in privkeys]
class Casper(BaseApp):
client_name = 'casper'
client_version = '%s/%s/%s' % (__version__, sys.platform,
'py%d.%d.%d' % sys.version_info[:3])
client_version_string = '%s/v%s' % (client_name, client_version)
start_console = False
default_config = dict(BaseApp.default_config)
default_config['client_version_string'] = client_version_string
default_config['post_app_start_callback'] = None
script_globals = {}
from ethereum.tools import tester
from ethereum.utils import sha3, normalize_address
c = tester.Chain()
x = c.contract(open('rando.v.py').read(), l='viper')
for i in range(10):
x.deposit(sender=tester.keys[i], value=(i + 1) * 10**15)
c.mine(1)
o = [0] * 10
for i in range(550):
addr = normalize_address(x.random_select(sha3(str(i))))
o[tester.accounts.index(addr)] += 1
for i, v in enumerate(o):
ev = 10 * (i + 1)
if not ev - 4 * ev**0.5 < v < ev + 4 * ev**0.5:
raise Exception(
"More than four standard deviations away; something is wrong: %.2f %d %.2f"
% (ev - 4 * ev**0.5, v, ev + 4 * ev**0.5))
print(o)
# Author: Florian Tramer
import glob
import unittest
from ethereum import utils
from os.path import basename
from utils.pyethereum_test_utils import PyEthereumTestCase, bytes_to_int, int_to_bytes
# Base path to contracts from current directory
PATH_TO_CONTRACTS = ""
log_sigs = {
'Transfer': bytes_to_int(utils.sha3("Transfer(address,address,uint256)")),
'Approval': bytes_to_int(utils.sha3("Approval(address,address,uint256)"))
}
class TestERC20Flo(PyEthereumTestCase):
def test_all(self):
self.assertEqual(self.c.totalSupply(), 0, "Token not initially empty")
orig_balance0 = self.s.head_state.get_balance(self.t.a0)
orig_balance1 = self.s.head_state.get_balance(self.t.a1)
self.c.deposit(sender=self.t.k0, value=1000)
self.check_logs([log_sigs['Transfer'], 0,
bytes_to_int(self.t.a0)], int_to_bytes(1000))
new_balance0 = self.s.head_state.get_balance(self.t.a0)
def get(self, k):
return self.trie.get(utils.sha3(k))
def _run(self): # pylint: disable=method-hidden,too-many-locals
tokenswap = self.tokenswap
raiden = self.raiden
identifier = tokenswap.identifier
from_token = tokenswap.from_token
from_amount = tokenswap.from_amount
to_token = tokenswap.to_token
to_amount = tokenswap.to_amount
to_nodeaddress = tokenswap.to_nodeaddress
from_graph = raiden.token_to_channelgraph[from_token]
to_graph = raiden.token_to_channelgraph[to_token]
from_routes = get_best_routes(
from_graph,
raiden.protocol.nodeaddresses_networkstatuses,
raiden.address,
to_nodeaddress,
from_amount,
previous_address=None,
)
fee = 0
for route in from_routes:
# for each new path a new secret must be used
secret = sha3(hex(random.getrandbits(256)))
hashlock = sha3(secret)
from_channel = from_graph.get_channel_by_contract_address(route.channel_address)
raiden.greenlet_task_dispatcher.register_task(self, hashlock)
raiden.register_channel_for_hashlock(from_token, from_channel, hashlock)
lock_expiration = (
raiden.get_block_number() +
from_channel.settle_timeout -
raiden.config['reveal_timeout']
)
from_mediated_transfer = from_channel.create_mediatedtransfer(
raiden.address,
to_nodeaddress,
fee,
from_amount,
identifier,
lock_expiration,
hashlock,
)
raiden.sign(from_mediated_transfer)
from_channel.register_transfer(
raiden.get_block_number(),
from_mediated_transfer,
)
# wait for the SecretRequest and MediatedTransfer
to_mediated_transfer = self.send_and_wait_valid_state(
raiden,
route.node_address,
to_nodeaddress,
from_mediated_transfer,
to_token,
to_amount,
)
if to_mediated_transfer is None:
# the initiator can unregister right away since it knows the
# secret wont be revealed
raiden.greenlet_task_dispatcher.unregister_task(self, hashlock, False)
elif isinstance(to_mediated_transfer, MediatedTransfer):
to_hop = to_mediated_transfer.sender
to_channel = to_graph.partneraddress_to_channel[to_hop]
to_channel.register_transfer(
raiden.get_block_number(),
to_mediated_transfer,
)
raiden.register_channel_for_hashlock(to_token, to_channel, hashlock)
# A swap is composed of two mediated transfers, we need to
# reveal the secret to both, since the maker is one of the ends
# we just need to send the reveal secret directly to the taker.
reveal_secret = RevealSecret(secret)
raiden.sign(reveal_secret)
raiden.send_async(to_nodeaddress, reveal_secret)
from_channel.register_secret(secret)
# Register the secret with the to_channel and send the
# RevealSecret message to the node that is paying the to_token
# (this node might, or might not be the same as the taker),
# then wait for the withdraw.
raiden.handle_secret(
identifier,
to_token,
secret,
None,
hashlock,
)
to_channel = to_graph.partneraddress_to_channel[to_mediated_transfer.sender]
self._wait_for_unlock_or_close(
raiden,
to_graph,
to_channel,
to_mediated_transfer,
)
# unlock the from_token and optimistically reveal the secret
# forward
raiden.handle_secret(
identifier,
from_token,
secret,
None,
hashlock,
)
raiden.greenlet_task_dispatcher.unregister_task(self, hashlock, True)
self.async_result.set(True)
return
if log.isEnabledFor(logging.DEBUG):
node_address = raiden.address
log.debug(
'MAKER TOKEN SWAP FAILED initiator:%s to_nodeaddress:%s',
pex(node_address),
pex(to_nodeaddress),
)
# all routes failed
self.async_result.set(False)
def _store_account_address(self, address):
"""
get block transaction receipts by block header hash & number
"""
address_key = address_prefix + utils.sha3(address)
self.wb.put(address_key, address)
def vm_execute(ext, msg, code):
# precompute trace flag
# if we trace vm, we're in slow mode anyway
trace_vm = log_vm_op.is_active('trace')
# Initialize stack, memory, program counter, etc
compustate = Compustate(gas=msg.gas)
stk = compustate.stack
mem = compustate.memory
# Compute
jumpdest_mask, pushcache = preprocess_code(code)
codelen = len(code)
# For tracing purposes
op = None
steps = 0
_prevop = None # for trace only
while compustate.pc < codelen:
opcode = safe_ord(code[compustate.pc])
# Invalid operation
if opcode not in opcodes.opcodes:
return vm_exception('INVALID OP', opcode=opcode)
op, in_args, out_args, fee = opcodes.opcodes[opcode]
# out of gas error
if fee > compustate.gas:
return vm_exception('OUT OF GAS')
# empty stack error
if in_args > len(compustate.stack):
return vm_exception('INSUFFICIENT STACK',
op=op,
needed=to_string(in_args),
available=to_string(len(compustate.stack)))
# overfull stack error
if len(compustate.stack) - in_args + out_args > 1024:
return vm_exception('STACK SIZE LIMIT EXCEEDED',
op=op,
pre_height=to_string(len(compustate.stack)))
# Apply operation
compustate.gas -= fee
compustate.pc += 1
# Tracing
if trace_vm:
"""
This diverges from normal logging, as we use the logging namespace
only to decide which features get logged in 'eth.vm.op'
i.e. tracing can not be activated by activating a sub
like 'eth.vm.op.stack'
"""
trace_data = {}
trace_data['stack'] = list(map(to_string, list(compustate.stack)))
if _prevop in ('MLOAD', 'MSTORE', 'MSTORE8', 'SHA3', 'CALL',
'CALLCODE', 'CREATE', 'CALLDATACOPY', 'CODECOPY',
'EXTCODECOPY'):
if len(compustate.memory) < 1024:
trace_data['memory'] = \
''.join([encode_hex(ascii_chr(x)) for x
in compustate.memory])
else:
trace_data['sha3memory'] = \
encode_hex(utils.sha3(b''.join([ascii_chr(x) for
x in compustate.memory])))
if _prevop in ('SSTORE', ) or steps == 0:
trace_data['storage'] = ext.log_storage(msg.to)
trace_data['gas'] = to_string(compustate.gas + fee)
trace_data['inst'] = opcode
trace_data['pc'] = to_string(compustate.pc - 1)
if steps == 0:
trace_data['depth'] = msg.depth
trace_data['address'] = msg.to
trace_data['steps'] = steps
trace_data['depth'] = msg.depth
if op[:4] == 'PUSH':
trace_data['pushvalue'] = pushcache[compustate.pc - 1]
log_vm_op.trace('vm', op=op, **trace_data)
steps += 1
_prevop = op
# Valid operations
# Pushes first because they are very frequent
if 0x60 <= opcode <= 0x7f:
stk.append(pushcache[compustate.pc - 1])
compustate.pc += opcode - 0x5f # Move 1 byte forward for 0x60, up to 32 bytes for 0x7f
# Arithmetic
elif opcode < 0x10:
if op == 'STOP':
return peaceful_exit('STOP', compustate.gas, [])
elif op == 'ADD':
stk.append((stk.pop() + stk.pop()) & TT256M1)
elif op == 'SUB':
stk.append((stk.pop() - stk.pop()) & TT256M1)
elif op == 'MUL':
stk.append((stk.pop() * stk.pop()) & TT256M1)
elif op == 'DIV':
s0, s1 = stk.pop(), stk.pop()
stk.append(0 if s1 == 0 else s0 // s1)
elif op == 'MOD':
s0, s1 = stk.pop(), stk.pop()
stk.append(0 if s1 == 0 else s0 % s1)
elif op == 'SDIV':
s0, s1 = utils.to_signed(stk.pop()), utils.to_signed(stk.pop())
stk.append(0 if s1 == 0 else (abs(s0) // abs(s1) *
(-1 if s0 * s1 < 0 else 1))
& TT256M1)
elif op == 'SMOD':
s0, s1 = utils.to_signed(stk.pop()), utils.to_signed(stk.pop())
stk.append(0 if s1 == 0 else (abs(s0) % abs(s1) *
(-1 if s0 < 0 else 1)) & TT256M1)
elif op == 'ADDMOD':
s0, s1, s2 = stk.pop(), stk.pop(), stk.pop()
stk.append((s0 + s1) % s2 if s2 else 0)
elif op == 'MULMOD':
s0, s1, s2 = stk.pop(), stk.pop(), stk.pop()
stk.append((s0 * s1) % s2 if s2 else 0)
elif op == 'EXP':
base, exponent = stk.pop(), stk.pop()
# fee for exponent is dependent on its bytes
# calc n bytes to represent exponent
nbytes = len(utils.encode_int(exponent))
expfee = nbytes * opcodes.GEXPONENTBYTE
if ext.post_spurious_dragon_hardfork():
expfee += opcodes.EXP_SUPPLEMENTAL_GAS * nbytes
if compustate.gas < expfee:
compustate.gas = 0
return vm_exception('OOG EXPONENT')
compustate.gas -= expfee
stk.append(pow(base, exponent, TT256))
elif op == 'SIGNEXTEND':
s0, s1 = stk.pop(), stk.pop()
if s0 <= 31:
testbit = s0 * 8 + 7
if s1 & (1 << testbit):
stk.append(s1 | (TT256 - (1 << testbit)))
else:
stk.append(s1 & ((1 << testbit) - 1))
else:
stk.append(s1)
# Comparisons
elif opcode < 0x20:
if op == 'LT':
stk.append(1 if stk.pop() < stk.pop() else 0)
elif op == 'GT':
stk.append(1 if stk.pop() > stk.pop() else 0)
elif op == 'SLT':
s0, s1 = utils.to_signed(stk.pop()), utils.to_signed(stk.pop())
stk.append(1 if s0 < s1 else 0)
elif op == 'SGT':
s0, s1 = utils.to_signed(stk.pop()), utils.to_signed(stk.pop())
stk.append(1 if s0 > s1 else 0)
elif op == 'EQ':
stk.append(1 if stk.pop() == stk.pop() else 0)
elif op == 'ISZERO':
stk.append(0 if stk.pop() else 1)
elif op == 'AND':
stk.append(stk.pop() & stk.pop())
elif op == 'OR':
stk.append(stk.pop() | stk.pop())
elif op == 'XOR':
stk.append(stk.pop() ^ stk.pop())
elif op == 'NOT':
stk.append(TT256M1 - stk.pop())
elif op == 'BYTE':
s0, s1 = stk.pop(), stk.pop()
if s0 >= 32:
stk.append(0)
else:
stk.append((s1 // 256**(31 - s0)) % 256)
# SHA3 and environment info
elif opcode < 0x40:
if op == 'SHA3':
s0, s1 = stk.pop(), stk.pop()
compustate.gas -= opcodes.GSHA3WORD * (utils.ceil32(s1) // 32)
if compustate.gas < 0:
return vm_exception('OOG PAYING FOR SHA3')
if not mem_extend(mem, compustate, op, s0, s1):
return vm_exception('OOG EXTENDING MEMORY')
data = bytearray_to_bytestr(mem[s0:s0 + s1])
stk.append(utils.big_endian_to_int(utils.sha3(data)))
elif op == 'ADDRESS':
stk.append(utils.coerce_to_int(msg.to))
elif op == 'BALANCE':
if ext.post_anti_dos_hardfork():
if not eat_gas(compustate,
opcodes.BALANCE_SUPPLEMENTAL_GAS):
return vm_exception("OUT OF GAS")
addr = utils.coerce_addr_to_hex(stk.pop() % 2**160)
stk.append(ext.get_balance(addr))
elif op == 'ORIGIN':
stk.append(utils.coerce_to_int(ext.tx_origin))
elif op == 'CALLER':
stk.append(utils.coerce_to_int(msg.sender))
elif op == 'CALLVALUE':
stk.append(msg.value)
elif op == 'CALLDATALOAD':
stk.append(msg.data.extract32(stk.pop()))
elif op == 'CALLDATASIZE':
stk.append(msg.data.size)
elif op == 'CALLDATACOPY':
mstart, dstart, size = stk.pop(), stk.pop(), stk.pop()
if not mem_extend(mem, compustate, op, mstart, size):
return vm_exception('OOG EXTENDING MEMORY')
if not data_copy(compustate, size):
return vm_exception('OOG COPY DATA')
msg.data.extract_copy(mem, mstart, dstart, size)
elif op == 'CODESIZE':
stk.append(codelen)
elif op == 'CODECOPY':
mstart, dstart, size = stk.pop(), stk.pop(), stk.pop()
if not mem_extend(mem, compustate, op, mstart, size):
return vm_exception('OOG EXTENDING MEMORY')
if not data_copy(compustate, size):
return vm_exception('OOG COPY DATA')
for i in range(size):
if dstart + i < codelen:
mem[mstart + i] = safe_ord(code[dstart + i])
else:
mem[mstart + i] = 0
elif op == 'RETURNDATACOPY':
mstart, dstart, size = stk.pop(), stk.pop(), stk.pop()
if not mem_extend(mem, compustate, op, mstart, size):
return vm_exception('OOG EXTENDING MEMORY')
if not data_copy(compustate, size):
return vm_exception('OOG COPY DATA')
if dstart + size > len(compustate.last_returned):
return vm_exception('RETURNDATACOPY out of range')
mem[mstart:mstart + size] = compustate.last_returned
elif op == 'RETURNDATASIZE':
stk.append(len(compustate.last_returned))
elif op == 'GASPRICE':
stk.append(ext.tx_gasprice)
elif op == 'EXTCODESIZE':
if ext.post_anti_dos_hardfork():
if not eat_gas(compustate,
opcodes.EXTCODELOAD_SUPPLEMENTAL_GAS):
return vm_exception("OUT OF GAS")
addr = utils.coerce_addr_to_hex(stk.pop() % 2**160)
stk.append(len(ext.get_code(addr) or b''))
elif op == 'EXTCODECOPY':
if ext.post_anti_dos_hardfork():
if not eat_gas(compustate,
opcodes.EXTCODELOAD_SUPPLEMENTAL_GAS):
return vm_exception("OUT OF GAS")
addr = utils.coerce_addr_to_hex(stk.pop() % 2**160)
start, s2, size = stk.pop(), stk.pop(), stk.pop()
extcode = ext.get_code(addr) or b''
assert utils.is_string(extcode)
if not mem_extend(mem, compustate, op, start, size):
return vm_exception('OOG EXTENDING MEMORY')
if not data_copy(compustate, size):
return vm_exception('OOG COPY DATA')
for i in range(size):
if s2 + i < len(extcode):
mem[start + i] = safe_ord(extcode[s2 + i])
else:
mem[start + i] = 0
# Block info
elif opcode < 0x50:
if op == 'BLOCKHASH':
if ext.post_metropolis_hardfork() and False:
bh_addr = ext.blockhash_store
stk.append(ext.get_storage_data(bh_addr, stk.pop()))
else:
stk.append(
utils.big_endian_to_int(ext.block_hash(stk.pop())))
elif op == 'COINBASE':
stk.append(utils.big_endian_to_int(ext.block_coinbase))
elif op == 'TIMESTAMP':
stk.append(ext.block_timestamp)
elif op == 'NUMBER':
stk.append(ext.block_number)
elif op == 'DIFFICULTY':
stk.append(ext.block_difficulty)
elif op == 'GASLIMIT':
stk.append(ext.block_gas_limit)
# VM state manipulations
elif opcode < 0x60:
if op == 'POP':
stk.pop()
elif op == 'MLOAD':
s0 = stk.pop()
if not mem_extend(mem, compustate, op, s0, 32):
return vm_exception('OOG EXTENDING MEMORY')
stk.append(utils.bytes_to_int(mem[s0:s0 + 32]))
elif op == 'MSTORE':
s0, s1 = stk.pop(), stk.pop()
if not mem_extend(mem, compustate, op, s0, 32):
return vm_exception('OOG EXTENDING MEMORY')
mem[s0:s0 + 32] = utils.encode_int32(s1)
elif op == 'MSTORE8':
s0, s1 = stk.pop(), stk.pop()
if not mem_extend(mem, compustate, op, s0, 1):
return vm_exception('OOG EXTENDING MEMORY')
mem[s0] = s1 % 256
elif op == 'SLOAD':
if ext.post_anti_dos_hardfork():
if not eat_gas(compustate, opcodes.SLOAD_SUPPLEMENTAL_GAS):
return vm_exception("OUT OF GAS")
stk.append(ext.get_storage_data(msg.to, stk.pop()))
elif op == 'SSTORE':
s0, s1 = stk.pop(), stk.pop()
if msg.static:
return vm_exception(
'Cannot SSTORE inside a static context')
if ext.get_storage_data(msg.to, s0):
gascost = opcodes.GSTORAGEMOD if s1 else opcodes.GSTORAGEKILL
refund = 0 if s1 else opcodes.GSTORAGEREFUND
else:
gascost = opcodes.GSTORAGEADD if s1 else opcodes.GSTORAGEMOD
refund = 0
if compustate.gas < gascost:
return vm_exception('OUT OF GAS')
compustate.gas -= gascost
ext.add_refund(
refund) # adds neg gascost as a refund if below zero
ext.set_storage_data(msg.to, s0, s1)
elif op == 'JUMP':
compustate.pc = stk.pop()
if compustate.pc >= codelen or not (
(1 << compustate.pc) & jumpdest_mask):
return vm_exception('BAD JUMPDEST')
elif op == 'JUMPI':
s0, s1 = stk.pop(), stk.pop()
if s1:
compustate.pc = s0
if compustate.pc >= codelen or not (
(1 << compustate.pc) & jumpdest_mask):
return vm_exception('BAD JUMPDEST')
elif op == 'PC':
stk.append(compustate.pc - 1)
elif op == 'MSIZE':
stk.append(len(mem))
elif op == 'GAS':
stk.append(compustate.gas) # AFTER subtracting cost 1
# DUPn (eg. DUP1: a b c -> a b c c, DUP3: a b c -> a b c a)
elif op[:3] == 'DUP':
stk.append(
stk[0x7f - opcode]
) # 0x7f - opcode is a negative number, -1 for 0x80 ... -16 for 0x8f
# SWAPn (eg. SWAP1: a b c d -> a b d c, SWAP3: a b c d -> d b c a)
elif op[:4] == 'SWAP':
temp = stk[
0x8e -
opcode] # 0x8e - opcode is a negative number, -2 for 0x90 ... -17 for 0x9f
stk[0x8e - opcode] = stk[-1]
stk[-1] = temp
# Logs (aka "events")
elif op[:3] == 'LOG':
"""
0xa0 ... 0xa4, 32/64/96/128/160 + len(data) gas
a. Opcodes LOG0...LOG4 are added, takes 2-6 stack arguments
MEMSTART MEMSZ (TOPIC1) (TOPIC2) (TOPIC3) (TOPIC4)
b. Logs are kept track of during tx execution exactly the same way as suicides
(except as an ordered list, not a set).
Each log is in the form [address, [topic1, ... ], data] where:
* address is what the ADDRESS opcode would output
* data is mem[MEMSTART: MEMSTART + MEMSZ]
* topics are as provided by the opcode
c. The ordered list of logs in the transaction are expressed as [log0, log1, ..., logN].
"""
depth = int(op[3:])
mstart, msz = stk.pop(), stk.pop()
topics = [stk.pop() for x in range(depth)]
compustate.gas -= msz * opcodes.GLOGBYTE
if msg.static:
return vm_exception('Cannot LOG inside a static context')
if not mem_extend(mem, compustate, op, mstart, msz):
return vm_exception('OOG EXTENDING MEMORY')
data = bytearray_to_bytestr(mem[mstart:mstart + msz])
ext.log(msg.to, topics, data)
log_log.trace('LOG',
to=msg.to,
topics=topics,
data=list(map(utils.safe_ord, data)))
# print('LOG', msg.to, topics, list(map(ord, data)))
# Create a new contract
elif op == 'CREATE':
value, mstart, msz = stk.pop(), stk.pop(), stk.pop()
if not mem_extend(mem, compustate, op, mstart, msz):
return vm_exception('OOG EXTENDING MEMORY')
if msg.static:
return vm_exception('Cannot CREATE inside a static context')
if ext.get_balance(msg.to) >= value and msg.depth < MAX_DEPTH:
cd = CallData(mem, mstart, msz)
ingas = compustate.gas
if ext.post_anti_dos_hardfork():
ingas = all_but_1n(ingas, opcodes.CALL_CHILD_LIMIT_DENOM)
create_msg = Message(msg.to, b'', value, ingas, cd,
msg.depth + 1)
o, gas, addr = ext.create(create_msg)
if o:
stk.append(utils.coerce_to_int(addr))
else:
stk.append(0)
compustate.gas = compustate.gas - ingas + gas
else:
stk.append(0)
# Calls
elif op in ('CALL', 'CALLCODE', 'DELEGATECALL', 'STATICCALL'):
# Pull arguments from the stack
if op in ('CALL', 'CALLCODE'):
gas, to, value, meminstart, meminsz, memoutstart, memoutsz = \
stk.pop(), stk.pop(), stk.pop(), stk.pop(), stk.pop(), stk.pop(), stk.pop()
else:
gas, to, meminstart, meminsz, memoutstart, memoutsz = \
stk.pop(), stk.pop(), stk.pop(), stk.pop(), stk.pop(), stk.pop()
value = 0
# Static context prohibition
if msg.static and value > 0 and op == 'CALL':
return vm_exception(
'Cannot make a non-zero-value call inside a static context'
)
# Expand memory
if not mem_extend(mem, compustate, op, meminstart, meminsz) or \
not mem_extend(mem, compustate, op, memoutstart, memoutsz):
return vm_exception('OOG EXTENDING MEMORY')
to = utils.int_to_addr(to)
# Extra gas costs based on various factors
extra_gas = 0
# Creating a new account
if op == 'CALL' and not ext.account_exists(to) and (
value > 0 or not ext.post_spurious_dragon_hardfork()):
extra_gas += opcodes.GCALLNEWACCOUNT
# Value transfer
if value > 0:
extra_gas += opcodes.GCALLVALUETRANSFER
# Cost increased from 40 to 700 in Tangerine Whistle
if ext.post_anti_dos_hardfork():
extra_gas += opcodes.CALL_SUPPLEMENTAL_GAS
# Compute child gas limit
if ext.post_anti_dos_hardfork():
if compustate.gas < extra_gas:
return vm_exception('OUT OF GAS', needed=extra_gas)
gas = min(
gas,
all_but_1n(compustate.gas - extra_gas,
opcodes.CALL_CHILD_LIMIT_DENOM))
else:
if compustate.gas < gas + extra_gas:
return vm_exception('OUT OF GAS', needed=gas + extra_gas)
submsg_gas = gas + opcodes.GSTIPEND * (value > 0)
# Verify that there is sufficient balance and depth
if ext.get_balance(msg.to) < value or msg.depth >= MAX_DEPTH:
compustate.gas -= (gas + extra_gas - submsg_gas)
stk.append(0)
else:
# Subtract gas from parent
compustate.gas -= (gas + extra_gas)
assert compustate.gas >= 0
cd = CallData(mem, meminstart, meminsz)
# Generate the message
if op == 'CALL':
call_msg = Message(msg.to,
to,
value,
submsg_gas,
cd,
msg.depth + 1,
code_address=to,
static=msg.static)
elif ext.post_homestead_hardfork() and op == 'DELEGATECALL':
call_msg = Message(msg.sender,
msg.to,
msg.value,
submsg_gas,
cd,
msg.depth + 1,
code_address=to,
transfers_value=False,
static=msg.static)
elif ext.post_metropolis_hardfork() and op == 'STATICCALL':
call_msg = Message(msg.to,
to,
value,
submsg_gas,
cd,
msg.depth + 1,
code_address=to,
static=True)
elif op in ('DELEGATECALL', 'STATICCALL'):
return vm_exception('OPCODE %s INACTIVE' % op)
elif op == 'CALLCODE':
call_msg = Message(msg.to,
msg.to,
value,
submsg_gas,
cd,
msg.depth + 1,
code_address=to,
static=msg.static)
else:
raise Exception("Lolwut")
# Get result
result, gas, data = ext.msg(call_msg)
if result == 0:
stk.append(0)
else:
stk.append(1)
# Set output memory
for i in range(min(len(data), memoutsz)):
mem[memoutstart + i] = data[i]
compustate.gas += gas
compustate.last_returned = bytearray(data)
# Return opcode
elif op == 'RETURN':
s0, s1 = stk.pop(), stk.pop()
if not mem_extend(mem, compustate, op, s0, s1):
return vm_exception('OOG EXTENDING MEMORY')
return peaceful_exit('RETURN', compustate.gas, mem[s0:s0 + s1])
# Revert opcode (Metropolis)
elif op == 'REVERT':
if not ext.post_metropolis_hardfork():
return vm_exception('Opcode not yet enabled')
s0, s1 = stk.pop(), stk.pop()
if not mem_extend(mem, compustate, op, s0, s1):
return vm_exception('OOG EXTENDING MEMORY')
return revert(compustate.gas, mem[s0:s0 + s1])
# SUICIDE opcode (also called SELFDESTRUCT)
elif op == 'SUICIDE':
if msg.static:
return vm_exception('Cannot SUICIDE inside a static context')
to = utils.encode_int(stk.pop())
to = ((b'\x00' * (32 - len(to))) + to)[12:]
xfer = ext.get_balance(msg.to)
if ext.post_anti_dos_hardfork():
extra_gas = opcodes.SUICIDE_SUPPLEMENTAL_GAS + \
(not ext.account_exists(to)) * (xfer > 0 or not ext.post_spurious_dragon_hardfork()) * opcodes.GCALLNEWACCOUNT
if not eat_gas(compustate, extra_gas):
return vm_exception("OUT OF GAS")
ext.set_balance(to, ext.get_balance(to) + xfer)
ext.set_balance(msg.to, 0)
ext.add_suicide(msg.to)
log_msg.debug('SUICIDING',
addr=utils.checksum_encode(msg.to),
to=utils.checksum_encode(to),
xferring=xfer)
return peaceful_exit('SUICIDED', compustate.gas, [])
return peaceful_exit('CODE OUT OF RANGE', compustate.gas, [])
def web3_sha3(argument):
print 'web3_sha3'
return '0x' + sha3(argument[2:].decode('hex')).encode('hex')
def random_addr():
priv = utils.sha3(os.urandom(4096))
addr = utils.checksum_encode(utils.privtoaddr(priv))
return priv.hex(), addr
def send_and_wait_valid(self, raiden, mediated_transfer, maker_payer_hop):
""" Start the second half of the exchange and wait for the SecretReveal
for it.
This will send the taker mediated transfer with the maker as a target,
once the maker receives the transfer he is expected to send a
RevealSecret backwards.
"""
# the taker cannot discard the transfer since the secret is controlled
# by another node (the maker), so we have no option but to wait for a
# valid response until the lock expires
response_iterator = self._send_and_wait_block(
raiden,
mediated_transfer.recipient,
mediated_transfer,
mediated_transfer.lock.expiration,
)
# Usually the RevealSecret for the MediatedTransfer from this node to
# the maker should arrive first, but depending on the number of hops
# and if the maker-path is optimistically revealing the Secret, then
# the Secret message might arrive first.
secret = None
for response in response_iterator:
valid_reveal = (
isinstance(response, RevealSecret) and
response.hashlock == mediated_transfer.lock.hashlock and
response.sender == maker_payer_hop
)
valid_refund = (
isinstance(response, RefundTransfer) and
response.sender == maker_payer_hop and
response.lock.amount == mediated_transfer.lock.amount and
response.lock.expiration <= mediated_transfer.lock.expiration and
response.token == mediated_transfer.token
)
if response is None:
log.error(
'TAKER SWAP TIMED OUT node:%s hashlock:%s',
pex(raiden.address),
pex(mediated_transfer.lock.hashlock),
)
return (response, secret)
elif isinstance(response, Secret):
if sha3(response.secret) != mediated_transfer.lock.hashlock:
log.error("Secret doesn't match the hashlock, ignoring.")
continue
secret = response
elif valid_reveal:
return (response, secret)
elif valid_refund:
return (response, secret)
elif log.isEnabledFor(logging.ERROR):
log.error(
'Invalid message [%s] supplied to the task, ignoring.',
repr(response),
)
return (None, secret)
def get_deposit_hash(owner, token, value):
return u.sha3(owner + token + b'\x00' * 31 + u.int_to_bytes(value))
int_to_addr,
zpad,
parse_as_bin,
parse_as_int,
decode_hex,
sha3,
is_string,
is_numeric,
)
from rlp.sedes import big_endian_int, Binary, binary, CountableList
from ethereum import utils
from ethereum import trie
from ethereum.trie import Trie
from ethereum.securetrie import SecureTrie
BLANK_HASH = utils.sha3(b"")
BLANK_ROOT = utils.sha3rlp(b"")
STATE_DEFAULTS = {
"txindex": 0,
"gas_used": 0,
"gas_limit": 3141592,
"block_number": 0,
"block_coinbase": "\x00" * 20,
"block_difficulty": 1,
"timestamp": 0,
"logs": [],
"receipts": [],
"bloom": 0,
"suicides": [],
"recent_uncles": {},
def confirm_tx(tx, root, key):
return sign(u.sha3(tx.hash + root), key)
def _update_root_hash(self):
val = rlp_encode(self.root_node)
key = utils.sha3(val)
self.db.put(key, str_to_bytes(val))
self._root_hash = key
def verify_signature(addr, h, sig):
pub = bitcoin.ecdsa_raw_recover(h, sig) # sig=V,R,S
pub = bitcoin.encode_pubkey(pub, 'bin')
addr_ = utils.sha3(pub[1:])[12:]
assert addr_ == addr
return True
def _wait_for_unlock_or_close(self, raiden, graph, channel, mediated_transfer): # noqa
""" Wait for a Secret message from our partner to update the local
state, if the Secret message is not sent within time the channel will
be closed.
Note:
Must be called only once the secret is known.
Must call `unregister_task` after this function returns.
"""
assert graph.token_address == mediated_transfer.token
if not isinstance(mediated_transfer, MediatedTransfer):
raise ValueError('MediatedTransfer expected.')
block_to_close = mediated_transfer.lock.expiration - raiden.config['reveal_timeout']
hashlock = mediated_transfer.lock.hashlock
identifier = mediated_transfer.identifier
token = mediated_transfer.token
while channel.our_state.balance_proof.is_unclaimed(hashlock):
current_block = raiden.get_block_number()
if current_block > block_to_close:
if log.isEnabledFor(logging.WARN):
log.warn(
'Closing channel (%s, %s) to prevent expiration of lock %s %s',
pex(channel.our_state.address),
pex(channel.partner_state.address),
pex(hashlock),
repr(self),
)
channel.external_state.close(
channel.partner_state.balance_proof.transfer,
)
return
try:
response = self.response_queue.get(
timeout=DEFAULT_EVENTS_POLL_TIMEOUT
)
except Empty:
pass
else:
if isinstance(response, Secret):
secret = response.secret
hashlock = sha3(secret)
if response.identifier == identifier and response.token == token:
raiden.handle_secret(
identifier,
graph.token_address,
secret,
response,
hashlock,
)
else:
# cannot use the message but the secret is okay
raiden.handle_secret(
identifier,
graph.token_address,
secret,
None,
hashlock,
)
if log.isEnabledFor(logging.ERROR):
log.error(
'Invalid Secret message received, expected message'
' for token=%s identifier=%s received=%s',
token,
identifier,
response,
)
elif isinstance(response, RevealSecret):
secret = response.secret
hashlock = sha3(secret)
raiden.handle_secret(
identifier,
graph.token_address,
secret,
None,
hashlock,
)
elif log.isEnabledFor(logging.ERROR):
log.error(
'Invalid message ignoring. %s %s',
repr(response),
repr(self),
)
bin = 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addr = Web3.toChecksumAddress('0xf3bA0e58C39eEf4e94144fb3a6c10374a25da663')
web3, pwd = connect()
contract = web3.eth.contract(abi=abi, bytecode=bin, address=addr)
p = 153098272504387072266936256155440771844922582242861823323292219309209807318109992190455717597749270325963123403359939192028947724926144342818770586136136126337375436706876614423863264051678326206739626203872223116203206738831155125839612432933059096643057013804321361170650382385182136069811475540151279147259
g = 48095861804730928538428071688224004229592704416264787635743716356958582448226167154685924895443220005707859651277553435409220536317215422963672871914841517783042349761227906722244783116777179995820326154186287286353935949308174273056377987690394866714089833749644657555907806410435558837920979345110898160449
k = 10022446701738583271276071804010446073913280425189472942303437612418862851223244723245226017322005926246813100742541609377103046893136104044015161562561526985453585647020566093167977121428923628169372925889701872928538625011078052920813557913682354018653924330859466163743103828247525446549945542160664745508
h = pow(g, k, p)
r = 62555713279948745690349351610356531327032351353192320967421937635293378693946211592624820108119998277825391232074589514501649650827908709815124457628347900961038658650480217718807650468597580969342931489490635246791126151937259525476850522897096329798193623331012272552762850181502944812071200771862243846107
c_val = sha3(int_to_bytes(p) + int_to_bytes(g) + int_to_bytes(h))
c = int.from_bytes(c_val, byteorder='big')
hash_eq = contract.functions.hash_equal(int_to_bytes(c_val), count_bitlen(c))
hash_eq.transact()
#print("Equal or not ", c_neg)
print("Hash Length Solidity", count_bitlen(int.from_bytes(c_sol, byteorder='big')))
print("Hash Length Python", count_bitlen(c))
print("Python c : ", c_val)
def update(self, k, v):
h = utils.sha3(k)
self.db.put(h, k)
self.trie.update(h, v)
def hash(self):
return utils.sha3(self.encoded)
def blkhash(n):
if n >= ext.block_number or n < ext.block_number - 256:
return b''
else:
return utils.sha3(to_string(n))
def test_channelmanager(tester_state, tester_token, tester_events,
tester_channelmanager_library_address, settle_timeout,
netting_channel_abi): # pylint: disable=too-many-locals,too-many-statements
address0 = tester.DEFAULT_ACCOUNT
address1 = tester.a1
address2 = tester.a2
nonexisting_address = sha3('this_does_not_exist')[:20]
channelmanager_path = get_contract_path('ChannelManagerContract.sol')
channel_manager = tester_state.abi_contract(
None,
path=channelmanager_path,
language='solidity',
constructor_parameters=[tester_token.address],
contract_name='ChannelManagerContract',
log_listener=tester_events.append,
libraries={
'ChannelManagerLibrary':
tester_channelmanager_library_address.encode('hex'),
})
participants_count = len(channel_manager.getChannelsParticipants())
assert participants_count == 0, 'newly deployed contract must be empty'
netting_channel_translator = ContractTranslator(netting_channel_abi)
previous_events = list(tester_events)
netting_channel_address1_hex = channel_manager.newChannel(
address1,
settle_timeout,
)
assert len(previous_events) + 1 == len(
tester_events), 'ChannelNew event must be fired.'
channelnew_event = tester_events[-1]
assert channelnew_event == {
'_event_type': 'ChannelNew',
'participant1': address0.encode('hex'),
'participant2': address1.encode('hex'),
'netting_channel': netting_channel_address1_hex,
'settle_timeout': settle_timeout,
}
# should fail if settleTimeout is too low
with pytest.raises(TransactionFailed):
channel_manager.newChannel(address1, 5)
# cannot have two channels at the same time
with pytest.raises(TransactionFailed):
channel_manager.newChannel(address1, settle_timeout)
# should be zero address if there is no channel for the given address
assert channel_manager.getChannelWith(nonexisting_address) == '0' * 40
assert len(channel_manager.getChannelsParticipants()) == 2
netting_contract_proxy1 = ABIContract(
tester_state,
netting_channel_translator,
netting_channel_address1_hex,
)
assert netting_contract_proxy1.settleTimeout() == settle_timeout
previous_events = list(tester_events)
netting_channel_address2_hex = channel_manager.newChannel(
address2,
settle_timeout,
)
assert len(previous_events) + 1 == len(
tester_events), 'ChannelNew event must be fired.'
assert channel_manager.getChannelWith(
address1) == netting_channel_address1_hex
assert channel_manager.getChannelWith(
address2) == netting_channel_address2_hex
msg_sender_channels = channel_manager.nettingContractsByAddress(
tester.DEFAULT_ACCOUNT)
address1_channels = channel_manager.nettingContractsByAddress(address1)
nonexisting_channels = channel_manager.nettingContractsByAddress(
nonexisting_address)
assert len(msg_sender_channels) == 2
assert len(address1_channels) == 1
assert len(nonexisting_channels) == 0
assert len(channel_manager.getChannelsParticipants()) == 4
channelnew_event = tester_events[-1]
assert channelnew_event == {
'_event_type': 'ChannelNew',
'participant1': address0.encode('hex'),
'participant2': address2.encode('hex'),
'netting_channel': netting_channel_address2_hex,
'settle_timeout': settle_timeout,
}
def hash_for_function_signature(sig):
return "0x%s" % utils.sha3(sig)[:4].hex()
def delete(self, k):
self.trie.delete(utils.sha3(k))