def test_add_signature_to_transaction_with_netowrk_id(self):
for network_id in [1, 2, 66, 100]:
sender_private_key = "0x0164f7c7399f4bb1eafeaae699ebbb12050bc6a50b2836b9ca766068a9d000c0"
sender_address = "0xde3d2d9dd52ea80f7799ef4791063a5458d13913"
to_address = "0x056db290f8ba3250ca64a45d16284d04bc6f5fbf"
value = 10000000000
nonce = 1048576
data = b''
gasprice = DEFAULT_GASPRICE
startgas = DEFAULT_STARTGAS
network_id = 1
tx1 = Transaction(nonce, gasprice, startgas, to_address, value,
data, network_id, 0, 0)
tx = encode_transaction(tx1)
tx1.sign(data_decoder(sender_private_key), network_id=network_id)
expected_signed_tx = encode_transaction(tx1)
sig = data_encoder(signature_from_transaction(tx1))
signed_tx = add_signature_to_transaction(tx, sig)
self.assertEqual(signed_tx, expected_signed_tx)
tx_obj = decode_transaction(tx)
add_signature_to_transaction(tx_obj, sig)
self.assertEqual(tx_obj.network_id, network_id)
self.assertEqual(data_encoder(tx_obj.sender), sender_address)
self.assertEqual(encode_transaction(tx_obj), expected_signed_tx)
def test_add_signature_to_transaction(self):
tx = "0xe9808504a817c80082520894db089a4f9a8c5f17040b4fc51647e942b5fc601d880de0b6b3a764000080"
sig = "0xf5a43adea07d366ae420a5c75a5cae6c60d3e4aaa0b72c2f37fc387efd43d7fd30c4327f2dbd959f654857f58912129b09763329459d08e25547d895ae90fa0f01"
expected_signed_tx = "0xf86c808504a817c80082520894db089a4f9a8c5f17040b4fc51647e942b5fc601d880de0b6b3a7640000801ca0f5a43adea07d366ae420a5c75a5cae6c60d3e4aaa0b72c2f37fc387efd43d7fda030c4327f2dbd959f654857f58912129b09763329459d08e25547d895ae90fa0f"
signed_tx = add_signature_to_transaction(tx, sig)
self.assertEqual(signed_tx, expected_signed_tx)
tx_obj = decode_transaction(tx)
add_signature_to_transaction(tx_obj, sig)
self.assertEqual(encode_transaction(tx_obj), expected_signed_tx)
async def send_transaction(self, *, tx, signature=None):
try:
tx = decode_transaction(tx)
except:
raise JsonRPCInvalidParamsError(data={
'id': 'invalid_transaction',
'message': 'Invalid Transaction'
})
if is_transaction_signed(tx):
tx_sig = data_encoder(signature_from_transaction(tx))
if signature:
if tx_sig != signature:
raise JsonRPCInvalidParamsError(
data={
'id':
'invalid_signature',
'message':
'Invalid Signature: Signature in payload and signature of transaction do not match'
})
else:
signature = tx_sig
else:
if signature is None:
raise JsonRPCInvalidParamsError(data={
'id': 'missing_signature',
'message': 'Missing Signature'
})
if not validate_signature(signature):
raise JsonRPCInvalidParamsError(
data={
'id':
'invalid_signature',
'message':
'Invalid Signature: {}'.format('Invalid length' if len(
signature) != 132 else 'Invalid hex value')
})
try:
sig = data_decoder(signature)
except Exception:
log.exception(
"Unexpected error decoding valid signature: {}".format(
signature))
raise JsonRPCInvalidParamsError(data={
'id': 'invalid_signature',
'message': 'Invalid Signature'
})
add_signature_to_transaction(tx, sig)
# validate network id, if it's not for "all networks"
if tx.network_id is not None and self.network_id != tx.network_id:
raise JsonRPCInvalidParamsError(data={
'id': 'invalid_network_id',
'message': 'Invalid Network ID'
})
from_address = data_encoder(tx.sender)
to_address = data_encoder(tx.to)
# prevent spamming of transactions with the same nonce from the same sender
with RedisLock(self.redis,
"{}:{}".format(from_address, tx.nonce),
raise_when_locked=partial(JsonRPCInvalidParamsError,
data={
'id':
'invalid_nonce',
'message':
'Nonce already used'
}),
ex=5):
# disallow transaction overwriting for known transactions
async with self.db:
existing = await self.db.fetchrow(
"SELECT * FROM transactions WHERE "
"from_address = $1 AND nonce = $2 AND status != $3",
from_address, tx.nonce, 'error')
if existing:
# debugging checks
existing_tx = await self.eth.eth_getTransactionByHash(
existing['hash'])
raise JsonRPCInvalidParamsError(data={
'id': 'invalid_nonce',
'message': 'Nonce already used'
})
# make sure the account has enough funds for the transaction
network_balance, balance, _, _ = await self.get_balances(
from_address)
#log.info("Attempting to send transaction\nHash: {}\n{} -> {}\nValue: {} + {} (gas) * {} (startgas) = {}\nSender's Balance {} ({} unconfirmed)".format(
# calculate_transaction_hash(tx), from_address, to_address, tx.value, tx.startgas, tx.gasprice, tx.value + (tx.startgas * tx.gasprice), network_balance, balance))
if balance < (tx.value + (tx.startgas * tx.gasprice)):
raise JsonRPCInsufficientFundsError(
data={
'id': 'insufficient_funds',
'message': 'Insufficient Funds'
})
# validate the nonce
c_nonce = await self.get_transaction_count(from_address)
if tx.nonce < c_nonce:
raise JsonRPCInvalidParamsError(
data={
'id': 'invalid_nonce',
'message': 'Provided nonce is too low'
})
if tx.nonce > c_nonce:
raise JsonRPCInvalidParamsError(
data={
'id': 'invalid_nonce',
'message': 'Provided nonce is too high'
})
if tx.intrinsic_gas_used > tx.startgas:
raise JsonRPCInvalidParamsError(
data={
'id':
'invalid_transaction',
'message':
'Transaction gas is too low. There is not enough gas to cover minimal cost of the transaction (minimal: {}, got: {}). Try increasing supplied gas.'
.format(tx.intrinsic_gas_used, tx.startgas)
})
# now this tx fits enough of the criteria to allow it
# onto the transaction queue
tx_hash = calculate_transaction_hash(tx)
# add tx to database
async with self.db:
await self.db.execute(
"INSERT INTO transactions "
"(hash, from_address, to_address, nonce, "
"value, gas, gas_price, "
"data, v, r, s, "
"sender_toshi_id) "
"VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12)",
tx_hash, from_address, to_address, tx.nonce, hex(tx.value),
hex(tx.startgas), hex(tx.gasprice), data_encoder(tx.data),
hex(tx.v), hex(tx.r), hex(tx.s), self.user_toshi_id)
await self.db.commit()
# trigger processing the transaction queue
self.tasks.process_transaction_queue(from_address)
# analytics
# use notification registrations to try find toshi ids for users
if self.user_toshi_id:
sender_toshi_id = self.user_toshi_id
else:
async with self.db:
sender_toshi_id = await self.db.fetchval(
"SELECT toshi_id FROM notification_registrations WHERE "
"eth_address = $1", from_address)
async with self.db:
receiver_toshi_id = await self.db.fetchval(
"SELECT toshi_id FROM notification_registrations WHERE "
"eth_address = $1", to_address)
self.track(sender_toshi_id, "Sent transaction")
# it doesn't make sense to add user agent here as we
# don't know the receiver's user agent
self.track(receiver_toshi_id,
"Received transaction",
add_user_agent=False)
return tx_hash
async def send_transaction(self, *, tx, signature=None):
try:
tx = decode_transaction(tx)
except:
raise JsonRPCInvalidParamsError(data={
'id': 'invalid_transaction',
'message': 'Invalid Transaction'
})
if is_transaction_signed(tx):
tx_sig = data_encoder(signature_from_transaction(tx))
if signature:
if tx_sig != signature:
raise JsonRPCInvalidParamsError(
data={
'id':
'invalid_signature',
'message':
'Invalid Signature: Signature in payload and signature of transaction do not match'
})
else:
signature = tx_sig
else:
if signature is None:
raise JsonRPCInvalidParamsError(data={
'id': 'missing_signature',
'message': 'Missing Signature'
})
if not validate_signature(signature):
raise JsonRPCInvalidParamsError(
data={
'id':
'invalid_signature',
'message':
'Invalid Signature: {}'.format('Invalid length' if len(
signature) != 132 else 'Invalid hex value')
})
try:
sig = data_decoder(signature)
except Exception:
log.exception(
"Unexpected error decoding valid signature: {}".format(
signature))
raise JsonRPCInvalidParamsError(data={
'id': 'invalid_signature',
'message': 'Invalid Signature'
})
add_signature_to_transaction(tx, sig)
# validate network id, if it's not for "all networks"
if tx.network_id is not None and self.network_id != tx.network_id:
raise JsonRPCInvalidParamsError(data={
'id': 'invalid_network_id',
'message': 'Invalid Network ID'
})
from_address = data_encoder(tx.sender)
to_address = data_encoder(tx.to)
# prevent spamming of transactions with the same nonce from the same sender
async with RedisLock("{}:{}".format(from_address, tx.nonce),
raise_when_locked=partial(
JsonRPCInvalidParamsError,
data={
'id': 'invalid_nonce',
'message': 'Nonce already used'
}),
ex=5):
# check for transaction overwriting
async with self.db:
existing = await self.db.fetchrow(
"SELECT * FROM transactions WHERE "
"from_address = $1 AND nonce = $2 AND "
"(status != 'error' or status is NULL)", from_address,
tx.nonce)
# disallow transaction overwriting when the gas is lower or the transaction is confirmed
if existing and (parse_int(existing['gas_price']) >= tx.gasprice
or existing['status'] == 'confirmed'):
raise JsonRPCInvalidParamsError(data={
'id': 'invalid_nonce',
'message': 'Nonce already used'
})
# make sure the account has enough funds for the transaction
network_balance, balance, _, _ = await self.get_balances(
from_address)
if existing:
balance += parse_int(existing['value']) + parse_int(
existing['gas']) * parse_int(existing['gas_price'])
if balance < (tx.value + (tx.startgas * tx.gasprice)):
raise JsonRPCInsufficientFundsError(
data={
'id': 'insufficient_funds',
'message': 'Insufficient Funds'
})
# validate the nonce (only necessary if tx doesn't already exist)
if not existing:
c_nonce = await self.get_transaction_count(from_address)
if tx.nonce < c_nonce:
raise JsonRPCInvalidParamsError(
data={
'id': 'invalid_nonce',
'message': 'Provided nonce is too low'
})
if tx.nonce > c_nonce:
raise JsonRPCInvalidParamsError(
data={
'id': 'invalid_nonce',
'message': 'Provided nonce is too high'
})
if tx.intrinsic_gas_used > tx.startgas:
raise JsonRPCInvalidParamsError(
data={
'id':
'invalid_transaction',
'message':
'Transaction gas is too low. There is not enough gas to cover minimal cost of the transaction (minimal: {}, got: {}). Try increasing supplied gas.'
.format(tx.intrinsic_gas_used, tx.startgas)
})
# now this tx fits enough of the criteria to allow it
# onto the transaction queue
tx_hash = calculate_transaction_hash(tx)
if existing:
log.info(
"Setting tx '{}' to error due to forced overwrite".format(
existing['hash']))
manager_dispatcher.update_transaction(
existing['transaction_id'], 'error')
data = data_encoder(tx.data)
if data and \
((data.startswith("0xa9059cbb") and len(data) == 138) or \
(data.startswith("0x23b872dd") and len(data) == 202)):
# check if the token is a known erc20 token
async with self.db:
erc20_token = await self.db.fetchrow(
"SELECT * FROM tokens WHERE contract_address = $1",
to_address)
else:
erc20_token = False
# add tx to database
async with self.db:
db_tx = await self.db.fetchrow(
"INSERT INTO transactions "
"(hash, from_address, to_address, nonce, "
"value, gas, gas_price, "
"data, v, r, s, "
"sender_toshi_id) "
"VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12) "
"RETURNING transaction_id", tx_hash, from_address,
to_address, tx.nonce, hex(tx.value), hex(tx.startgas),
hex(tx.gasprice), data_encoder(tx.data), hex(tx.v),
hex(tx.r), hex(tx.s), self.user_toshi_id)
if erc20_token:
token_value = int(data[-64:], 16)
if data.startswith("0x23b872dd"):
erc20_from_address = "0x" + data[34:74]
erc20_to_address = "0x" + data[98:138]
else:
erc20_from_address = from_address
erc20_to_address = "0x" + data[34:74]
await self.db.execute(
"INSERT INTO token_transactions "
"(transaction_id, transaction_log_index, contract_address, from_address, to_address, value) "
"VALUES ($1, $2, $3, $4, $5, $6)",
db_tx['transaction_id'], 0,
erc20_token['contract_address'], erc20_from_address,
erc20_to_address, hex(token_value))
await self.db.commit()
# trigger processing the transaction queue
manager_dispatcher.process_transaction_queue(from_address)
# analytics
# use notification registrations to try find toshi ids for users
if self.user_toshi_id:
sender_toshi_id = self.user_toshi_id
else:
async with self.db:
sender_toshi_id = await self.db.fetchval(
"SELECT toshi_id FROM notification_registrations WHERE "
"eth_address = $1", from_address)
async with self.db:
receiver_toshi_id = await self.db.fetchval(
"SELECT toshi_id FROM notification_registrations WHERE "
"eth_address = $1", to_address)
self.track(sender_toshi_id, "Sent transaction")
# it doesn't make sense to add user agent here as we
# don't know the receiver's user agent
self.track(receiver_toshi_id,
"Received transaction",
add_user_agent=False)
return tx_hash
def do_POST(self):
# TODO: figure out why read is blocking here
data = self.rfile.read(len(self.rfile.peek()))
data = data.decode('utf-8')
data = json.loads(data)
if self.path == "/v1/tx/skel":
gas_price = parse_int(
data['gas_price']) if 'gas_price' in data else DEFAULT_GASPRICE
gas = parse_int(data['gas']) if 'gas' in data else DEFAULT_STARTGAS
nonce = parse_int(data['nonce']) if 'nonce' in data else 0
if 'value' not in data or 'from' not in data or 'to' not in data:
self.write_data(
400, {
'errors': [{
'id': 'bad_arguments',
'message': 'Bad Arguments'
}]
})
return
value = parse_int(data['value'])
to_address = data['to']
from_address = data['from']
if not validate_address(to_address):
self.write_data(
400, {
'errors': [{
'id': 'invalid_to_address',
'message': 'Invalid To Address'
}]
})
return
if not validate_address(from_address):
self.write_data(
400, {
'errors': [{
'id': 'invalid_from_address',
'message': 'Invalid From Address'
}]
})
return
tx = create_transaction(nonce=nonce,
gasprice=gas_price,
startgas=gas,
to=to_address,
value=value)
transaction = encode_transaction(tx)
self.write_data(
200, {
"tx_data": {
"nonce": hex(nonce),
"from": from_address,
"to": to_address,
"value": hex(value),
"startGas": hex(gas),
"gasPrice": hex(gas_price)
},
"tx": transaction
})
elif self.path == "/v1/tx":
tx = decode_transaction(data['tx'])
if 'signature' in data:
sig = data_decoder(data['signature'])
add_signature_to_transaction(tx, sig)
self.write_data(200, {"tx_hash": data_encoder(tx.hash)})
else:
self.write_data(404)