def _format_call(self, sender='', to='', value=0, data='',
startgas=default_startgas, gasprice=default_gasprice):
""" Helper to format the transaction data. """
json_data = dict()
if sender is not None:
json_data['from'] = address_encoder(sender)
if to is not None:
json_data['to'] = data_encoder(to)
if value is not None:
json_data['value'] = quantity_encoder(value)
if gasprice is not None:
json_data['gasPrice'] = quantity_encoder(gasprice)
if startgas is not None:
json_data['gas'] = quantity_encoder(startgas)
if data is not None:
json_data['data'] = data_encoder(data)
return json_data
def eth_sendTransaction(self, nonce=None, sender='', to='', value=0, data='',
gasPrice=default_gasprice, gas=default_startgas,
v=None, r=None, s=None):
""" Creates new message call transaction or a contract creation, if the
data field contains code.
Note:
The support for local signing through the variables v,r,s is not
part of the standard spec, a extended server is required.
Args:
from (address): The 20 bytes address the transaction is send from.
to (address): DATA, 20 Bytes - (optional when creating new
contract) The address the transaction is directed to.
gas (int): Gas provided for the transaction execution. It will
return unused gas.
gasPrice (int): gasPrice used for each paid gas.
value (int): Value send with this transaction.
data (bin): The compiled code of a contract OR the hash of the
invoked method signature and encoded parameters.
nonce (int): This allows to overwrite your own pending transactions
that use the same nonce.
"""
if to == '' and data.isalnum():
warnings.warn(
'Verify that the data parameter is _not_ hex encoded, if this is the case '
'the data will be double encoded and result in unexpected '
'behavior.'
)
if to == '0' * 40:
warnings.warn('For contract creating the empty string must be used.')
json_data = {
'to': data_encoder(normalize_address(to, allow_blank=True)),
'value': quantity_encoder(value),
'gasPrice': quantity_encoder(gasPrice),
'gas': quantity_encoder(gas),
'data': data_encoder(data),
}
if not sender and not (v and r and s):
raise ValueError('Either sender or v, r, s needs to be informed.')
if sender is not None:
json_data['from'] = address_encoder(sender)
if v and r and s:
json_data['v'] = quantity_encoder(v)
json_data['r'] = quantity_encoder(r)
json_data['s'] = quantity_encoder(s)
if nonce is not None:
json_data['nonce'] = quantity_encoder(nonce)
res = self.call('eth_sendTransaction', json_data)
return data_decoder(res)
def test_new_block_filter(test_app):
filter_id = test_app.rpc_request('eth_newBlockFilter')
assert test_app.rpc_request('eth_getFilterChanges', filter_id) == []
h = test_app.mine_next_block().hash
assert test_app.rpc_request('eth_getFilterChanges', filter_id) == [data_encoder(h)]
assert test_app.rpc_request('eth_getFilterChanges', filter_id) == []
hashes = [data_encoder(test_app.mine_next_block().hash) for i in range(3)]
assert test_app.rpc_request('eth_getFilterChanges', filter_id) == hashes
assert test_app.rpc_request('eth_getFilterChanges', filter_id) == []
assert test_app.rpc_request('eth_getFilterChanges', filter_id) == []
def test_new_block_filter(test_app):
filter_id = test_app.rpc_request("eth_newBlockFilter")
assert test_app.rpc_request("eth_getFilterChanges", filter_id) == []
h = test_app.mine_next_block().hash
assert test_app.rpc_request("eth_getFilterChanges", filter_id) == [data_encoder(h)]
assert test_app.rpc_request("eth_getFilterChanges", filter_id) == []
hashes = [data_encoder(test_app.mine_next_block().hash) for i in range(3)]
assert test_app.rpc_request("eth_getFilterChanges", filter_id) == hashes
assert test_app.rpc_request("eth_getFilterChanges", filter_id) == []
assert test_app.rpc_request("eth_getFilterChanges", filter_id) == []
def eth_call(self,
sender='',
to='',
value=0,
data='',
startgas=default_startgas,
gasprice=default_gasprice,
block_number='latest'):
""" Executes a new message call immediately without creating a
transaction on the block chain.
Args:
from: The address the transaction is send from.
to: The address the transaction is directed to.
gas (int): Gas provided for the transaction execution. eth_call
consumes zero gas, but this parameter may be needed by some
executions.
gasPrice (int): gasPrice used for each paid gas.
value (int): Integer of the value send with this transaction.
data (bin): Hash of the method signature and encoded parameters.
For details see Ethereum Contract ABI.
block_number: Determines the state of ethereum used in the
call.
"""
json_data = dict()
if sender is not None:
json_data['from'] = address_encoder(sender)
if to is not None:
json_data['to'] = data_encoder(to)
if value is not None:
json_data['value'] = quantity_encoder(value)
if gasprice is not None:
json_data['gasPrice'] = quantity_encoder(gasprice)
if startgas is not None:
json_data['gas'] = quantity_encoder(startgas)
if data is not None:
json_data['data'] = data_encoder(data)
res = self.call('eth_call', json_data, block_number)
return data_decoder(res)
def send_transaction(sender,
to,
value=0,
data='',
startgas=GAS_LIMIT,
gasprice=GAS_PRICE,
nonce=None):
"""Custom implementation for `pyethapp.rpc_client.JSONRPCClient.send_transaction`.
This is necessary to support other remotes that don't support pyethapp's extended specs.
@see https://github.com/ethereum/pyethapp/blob/develop/pyethapp/rpc_client.py#L359
"""
pending_transactions_hex = client.call(
'eth_getTransactionCount',
address_encoder(sender),
'pending',
)
pending_transactions = int(pending_transactions_hex, 16)
nonce = pending_transactions + nonce_offset
tx = Transaction(nonce, gasprice, startgas, to, value, data)
assert hasattr(client, 'privkey') and client.privkey
tx.sign(client.privkey)
result = client.call(
'eth_sendRawTransaction',
data_encoder(rlp.encode(tx)),
)
return result[2 if result.startswith('0x') else 0:]
def test_compileSolidity():
from pyethapp.jsonrpc import Compilers, data_encoder
import ethereum._solidity
s = ethereum._solidity.get_solidity()
if s == None:
pytest.xfail("solidity not installed, not tested")
else:
c = Compilers()
bc = s.compile(solidity_code)
abi = s.mk_full_signature(solidity_code)
A = dict(
test=dict(
code=data_encoder(bc),
info=dict(
source=solidity_code,
language="Solidity",
languageVersion="0",
compilerVersion="0",
abiDefinition=abi,
userDoc=dict(methods=dict()),
developerDoc=dict(methods=dict()),
),
)
)
B = c.compileSolidity(solidity_code)
assert A.keys() == B.keys()
At = A["test"]
Bt = B["test"]
assert At["code"] == Bt["code"]
for k, Av in At["info"].items():
if k == "compilerVersion":
continue
assert Av == Bt["info"][k]
def test_send_raw_transaction_with_contract(test_app):
serpent_code = '''
def main(a,b):
return(a ^ b)
'''
tx_to = b''
evm_code = serpent.compile(serpent_code)
chain = test_app.services.chain.chain
assert chain.head_candidate.get_balance(tx_to) == 0
sender = test_app.services.accounts.unlocked_accounts[0].address
assert chain.head_candidate.get_balance(sender) > 0
nonce = chain.head_candidate.get_nonce(sender)
tx = ethereum.transactions.Transaction(nonce, default_gasprice, default_startgas, tx_to, 0, evm_code, 0, 0, 0)
test_app.services.accounts.sign_tx(sender, tx)
raw_transaction = data_encoder(rlp.codec.encode(tx, ethereum.transactions.Transaction))
data_decoder(test_app.client.call('eth_sendRawTransaction', raw_transaction))
creates = chain.head_candidate.get_transaction(0).creates
code = chain.head_candidate.account_to_dict(creates)['code']
assert len(code) > 2
assert code != '0x'
test_app.mine_next_block()
creates = chain.head.get_transaction(0).creates
code = chain.head.account_to_dict(creates)['code']
assert len(code) > 2
assert code != '0x'
def test_compileSolidity():
from pyethapp.jsonrpc import Compilers, data_encoder
import ethereum._solidity
s = ethereum._solidity.get_solidity()
if s == None:
pytest.xfail("solidity not installed, not tested")
else:
c = Compilers()
bc = s.compile(solidity_code)
abi = s.mk_full_signature(solidity_code)
A = dict(test=dict(code=data_encoder(bc),
info=dict(
source=solidity_code,
language='Solidity',
languageVersion='0',
compilerVersion='0',
abiDefinition=abi,
userDoc=dict(methods=dict()),
developerDoc=dict(methods=dict()),
)))
B = c.compileSolidity(solidity_code)
assert A.keys() == B.keys()
At = A['test']
Bt = B['test']
assert At['code'] == Bt['code']
for k, Av in At['info'].items():
if k == 'compilerVersion':
continue
assert Av == Bt['info'][k]
def block_tag_encoder(val):
if isinstance(val, int):
return quantity_encoder(val)
elif val and isinstance(val, bytes):
assert val in ('latest', 'pending')
return data_encoder(val)
else:
assert not val
def block_tag_encoder(val):
if isinstance(val, int):
return quantity_encoder(val)
elif val and isinstance(val, bytes):
assert val in ('latest', 'pending')
return data_encoder(val)
else:
assert not val
def send_transaction(sender, to, value=0, data='', startgas=GAS_LIMIT,
gasprice=GAS_PRICE, nonce=None):
"""Custom implementation for `pyethapp.rpc_client.JSONRPCClient.send_transaction`.
This is necessary to support other remotes that don't support pyethapp's extended specs.
@see https://github.com/ethereum/pyethapp/blob/develop/pyethapp/rpc_client.py#L359
"""
def get_nonce():
"""Eventually syncing nonce counter.
This will keep a local nonce counter that is only syncing against
the remote every `UPDATE_INTERVAL`.
If the remote counter is lower than the current local counter,
it will wait for the remote to catch up.
"""
with client.nonce_lock:
UPDATE_INTERVAL = 5.
query_time = now()
needs_update = abs(query_time - client.last_nonce_update) > UPDATE_INTERVAL
not_initialized = client.current_nonce is None
if needs_update or not_initialized:
nonce = _query_nonce()
# we may have hammered the server and not all tx are
# registered as `pending` yet
while nonce < client.current_nonce:
log.debug(
"nonce on server too low; retrying",
server=nonce,
local=client.current_nonce
)
nonce = _query_nonce()
query_time = now()
client.current_nonce = nonce
client.last_nonce_update = query_time
else:
client.current_nonce += 1
return client.current_nonce
def _query_nonce():
pending_transactions_hex = client.call(
'eth_getTransactionCount',
address_encoder(sender),
'pending',
)
pending_transactions = int(pending_transactions_hex, 16)
nonce = pending_transactions + nonce_offset
return nonce
nonce = get_nonce()
tx = Transaction(nonce, gasprice, startgas, to, value, data)
assert hasattr(client, 'privkey') and client.privkey
tx.sign(client.privkey)
result = client.call(
'eth_sendRawTransaction',
data_encoder(rlp.encode(tx)),
)
return result[2 if result.startswith('0x') else 0:]
def check_transaction_threw(client, transaction_hash):
"""Check if the transaction threw or if it executed properly"""
encoded_transaction = data_encoder(transaction_hash.decode('hex'))
transaction = client.call('eth_getTransactionByHash', encoded_transaction)
receipt = client.call('eth_getTransactionReceipt', encoded_transaction)
if int(transaction['gas'], 0) != int(receipt['gasUsed'], 0):
return None
else:
return receipt
def test_compile_solidity():
with open(path.join(path.dirname(__file__), 'contracts',
'multiply.sol')) as handler:
solidity_code = handler.read()
solidity = ethereum.tools._solidity.get_solidity() # pylint: disable=protected-access
abi = solidity.mk_full_signature(solidity_code)
code = data_encoder(solidity.compile(solidity_code))
info = {
'abiDefinition': abi,
'compilerVersion': '0',
'developerDoc': {
'methods': None,
},
'language': 'Solidity',
'languageVersion': '0',
'source': solidity_code,
'userDoc': {
'methods': None,
},
}
test_result = {
'test': {
'code': code,
'info': info,
}
}
compiler_result = Compilers().compileSolidity(solidity_code)
assert set(compiler_result.keys()) == {
'test',
}
assert set(compiler_result['test'].keys()) == {
'info',
'code',
}
assert set(compiler_result['test']['info']) == {
'abiDefinition',
'compilerVersion',
'developerDoc',
'language',
'languageVersion',
'source',
'userDoc',
}
assert test_result['test']['code'] == compiler_result['test']['code']
compiler_info = dict(compiler_result['test']['info'])
compiler_info.pop('compilerVersion')
info.pop('compilerVersion')
assert compiler_info['abiDefinition'] == info['abiDefinition']
def check_transaction_threw(client, transaction_hash):
"""Check if the transaction threw or if it executed properly"""
encoded_transaction = data_encoder(transaction_hash.decode('hex'))
debug = client.call('debug_traceTransaction', encoded_transaction)
# struct_logs will be empty if it's a call to a contract that previously
# self destructed:
# https://github.com/ethereum/go-ethereum/issues/2542
struct_logs = debug['structLogs']
if not struct_logs or struct_logs[-1]['op'] not in ('RETURN', 'STOP'):
return debug
def poll(self, transaction_hash, confirmations=None, timeout=None):
""" Wait until the `transaction_hash` is applied or rejected.
If timeout is None, this could wait indefinitely!
Args:
transaction_hash (hash): Transaction hash that we are waiting for.
confirmations (int): Number of block confirmations that we will
wait for.
timeout (float): Timeout in seconds, raise an Excpetion on
timeout.
"""
if transaction_hash.startswith('0x'):
warnings.warn(
'transaction_hash seems to be already encoded, this will result '
'in unexpected behavior')
if len(transaction_hash) != 32:
raise ValueError(
'transaction_hash length must be 32 (it might be hex encode)')
deadline = None
if timeout:
deadline = time.time() + timeout
transaction_hash = data_encoder(transaction_hash)
transaction = self.call('eth_getTransactionByHash', transaction_hash)
while transaction is None or transaction["blockNumber"] is None:
if deadline and time.time() > deadline:
raise Exception('timeout when polling for transaction')
gevent.sleep(.5)
transaction = self.call('eth_getTransactionByHash',
transaction_hash)
if confirmations is None:
return
# this will wait for both APPLIED and REVERTED transactions
transaction_block = quantity_decoder(transaction['blockNumber'])
confirmation_block = transaction_block + confirmations
block_number = self.blocknumber()
while confirmation_block > block_number:
if deadline and time.time() > deadline:
raise Exception('timeout when waiting for confirmation')
gevent.sleep(.5)
block_number = self.blocknumber()
def eth_getTransactionByHash(self, transaction_hash):
""" Returns the information about a transaction requested by
transaction hash.
"""
if transaction_hash.startswith('0x'):
warnings.warn(
'transaction_hash seems to be already encoded, this will'
' result in unexpected behavior'
)
if len(transaction_hash) != 32:
raise ValueError(
'transaction_hash length must be 32 (it might be hex encode)'
)
transaction_hash = data_encoder(transaction_hash)
return self.call('eth_getTransactionByHash', transaction_hash)
def test_compileSolidity():
from pyethapp.jsonrpc import Compilers, data_encoder
import ethereum._solidity
s = ethereum._solidity.get_solidity()
c = Compilers()
assert 'solidity' in c.getCompilers()
bc = s.compile(solidity_code)
abi = s.mk_full_signature(solidity_code)
r = dict(code=data_encoder(bc),
info=dict(source=solidity_code,
language='Solidity',
languageVersion='0',
compilerVersion='0',
abiDefinition=abi,
userDoc=dict(methods=dict()),
developerDoc=dict(methods=dict()),
)
)
assert r == c.compileSolidity(solidity_code)
def test_compileSolidity():
from pyethapp.jsonrpc import Compilers, data_encoder
import ethereum._solidity
s = ethereum._solidity.get_solidity()
if s == None:
pytest.xfail("solidity not installed, not tested")
else:
c = Compilers()
bc = s.compile(solidity_code)
abi = s.mk_full_signature(solidity_code)
r = dict(code=data_encoder(bc),
info=dict(source=solidity_code,
language='Solidity',
languageVersion='0',
compilerVersion='0',
abiDefinition=abi,
userDoc=dict(methods=dict()),
developerDoc=dict(methods=dict()),
)
)
assert r == c.compileSolidity(solidity_code)
def test_compileSolidity():
from pyethapp.jsonrpc import Compilers, data_encoder
import ethereum._solidity
s = ethereum._solidity.get_solidity()
if s == None:
pytest.xfail("solidity not installed, not tested")
else:
c = Compilers()
bc = s.compile(solidity_code)
abi = s.mk_full_signature(solidity_code)
r = dict(code=data_encoder(bc),
info=dict(
source=solidity_code,
language='Solidity',
languageVersion='0',
compilerVersion='0',
abiDefinition=abi,
userDoc=dict(methods=dict()),
developerDoc=dict(methods=dict()),
))
assert r == c.compileSolidity(solidity_code)
def eth_getTransactionReceipt(self, transaction_hash):
""" Returns the receipt of a transaction by transaction hash.
Args:
transaction_hash: Hash of a transaction.
Returns:
A dict representing the transaction receipt object, or null when no
receipt was found.
"""
if transaction_hash.startswith('0x'):
warnings.warn(
'transaction_hash seems to be already encoded, this will'
' result in unexpected behavior'
)
if len(transaction_hash) != 32:
raise ValueError(
'transaction_hash length must be 32 (it might be hex encode)'
)
transaction_hash = data_encoder(transaction_hash)
return self.call('eth_getTransactionReceipt', transaction_hash)
def test_get_logs(test_app):
test_app.mine_next_block() # start with a fresh block
n0 = test_app.services.chain.chain.head.number
sender = address_encoder(test_app.services.accounts.unlocked_accounts()[0].address)
contract_creation = {
'from': sender,
'data': data_encoder(LOG_EVM)
}
tx_hash = test_app.rpc_request('eth_sendTransaction', contract_creation)
test_app.mine_next_block()
receipt = test_app.rpc_request('eth_getTransactionReceipt', tx_hash)
contract_address = receipt['contractAddress']
tx = {
'from': sender,
'to': contract_address
}
# single log in pending block
test_app.rpc_request('eth_sendTransaction', tx)
logs1 = test_app.rpc_request('eth_getLogs', {
'fromBlock': 'pending',
'toBlock': 'pending'
});
assert len(logs1) == 1
assert logs1[0]['type'] == 'pending'
assert logs1[0]['logIndex'] == None
assert logs1[0]['transactionIndex'] == None
assert logs1[0]['transactionHash'] == None
assert logs1[0]['blockHash'] == None
assert logs1[0]['blockNumber'] == None
assert logs1[0]['address'] == contract_address
logs2 = test_app.rpc_request('eth_getLogs', {
'fromBlock': 'pending',
'toBlock': 'pending'
});
assert logs2 == logs1
# same log, but now mined in head
test_app.mine_next_block()
logs3 = test_app.rpc_request('eth_getLogs', {
'fromBlock': 'latest',
'toBlock': 'latest'
});
assert len(logs3) == 1
assert logs3[0]['type'] == 'mined'
assert logs3[0]['logIndex'] == '0x0'
assert logs3[0]['transactionIndex'] == '0x0'
assert logs3[0]['blockHash'] == data_encoder(test_app.services.chain.chain.head.hash)
assert logs3[0]['blockNumber'] == quantity_encoder(test_app.services.chain.chain.head.number)
assert logs3[0]['address'] == contract_address
# another log in pending block
test_app.rpc_request('eth_sendTransaction', tx)
logs4 = test_app.rpc_request('eth_getLogs', {
'fromBlock': 'latest',
'toBlock': 'pending'
})
assert logs4 == [logs1[0], logs3[0]] or logs4 == [logs3[0], logs1[0]]
# two logs in pending block
test_app.rpc_request('eth_sendTransaction', tx)
logs5 = test_app.rpc_request('eth_getLogs', {
'fromBlock': 'pending',
'toBlock': 'pending'
})
assert len(logs5) == 2
assert logs5[0] == logs5[1] == logs1[0]
# two logs in head
test_app.mine_next_block()
logs6 = test_app.rpc_request('eth_getLogs', {
'fromBlock': 'latest',
'toBlock': 'pending'
})
for log in logs6:
assert log['type'] == 'mined'
assert log['logIndex'] == '0x0'
assert log['blockHash'] == data_encoder(test_app.services.chain.chain.head.hash)
assert log['blockNumber'] == quantity_encoder(test_app.services.chain.chain.head.number)
assert log['address'] == contract_address
assert sorted([log['transactionIndex'] for log in logs6]) == ['0x0', '0x1']
# everything together with another log in pending block
test_app.rpc_request('eth_sendTransaction', tx)
logs7 = test_app.rpc_request('eth_getLogs', {
'fromBlock': quantity_encoder(n0),
'toBlock': 'pending'
})
assert sorted(logs7) == sorted(logs3 + logs6 + logs1)
def test_get_filter_changes(test_app):
test_app.mine_next_block() # start with a fresh block
n0 = test_app.services.chain.chain.head.number
sender = address_encoder(test_app.services.accounts.unlocked_accounts()[0].address)
contract_creation = {"from": sender, "data": data_encoder(LOG_EVM)}
tx_hash = test_app.rpc_request("eth_sendTransaction", contract_creation)
test_app.mine_next_block()
receipt = test_app.rpc_request("eth_getTransactionReceipt", tx_hash)
contract_address = receipt["contractAddress"]
tx = {"from": sender, "to": contract_address}
pending_filter_id = test_app.rpc_request("eth_newFilter", {"fromBlock": "pending", "toBlock": "pending"})
latest_filter_id = test_app.rpc_request("eth_newFilter", {"fromBlock": "latest", "toBlock": "latest"})
tx_hashes = []
logs = []
# tx in pending block
tx_hashes.append(test_app.rpc_request("eth_sendTransaction", tx))
logs.append(test_app.rpc_request("eth_getFilterChanges", pending_filter_id))
assert len(logs[-1]) == 1
assert logs[-1][0]["type"] == "pending"
assert logs[-1][0]["logIndex"] == None
assert logs[-1][0]["transactionIndex"] == None
assert logs[-1][0]["transactionHash"] == None
assert logs[-1][0]["blockHash"] == None
assert logs[-1][0]["blockNumber"] == None
assert logs[-1][0]["address"] == contract_address
pending_log = logs[-1][0]
logs.append(test_app.rpc_request("eth_getFilterChanges", pending_filter_id))
assert logs[-1] == []
logs.append(test_app.rpc_request("eth_getFilterChanges", latest_filter_id))
assert logs[-1] == []
test_app.mine_next_block()
logs.append(test_app.rpc_request("eth_getFilterChanges", latest_filter_id))
assert len(logs[-1]) == 1 # log from before, but now mined
assert logs[-1][0]["type"] == "mined"
assert logs[-1][0]["logIndex"] == "0x0"
assert logs[-1][0]["transactionIndex"] == "0x0"
assert logs[-1][0]["transactionHash"] == tx_hashes[-1]
assert logs[-1][0]["blockHash"] == data_encoder(test_app.services.chain.chain.head.hash)
assert logs[-1][0]["blockNumber"] == quantity_encoder(test_app.services.chain.chain.head.number)
assert logs[-1][0]["address"] == contract_address
logs_in_range = [logs[-1][0]]
# send tx and mine block
tx_hashes.append(test_app.rpc_request("eth_sendTransaction", tx))
test_app.mine_next_block()
logs.append(test_app.rpc_request("eth_getFilterChanges", pending_filter_id))
assert len(logs[-1]) == 1
assert logs[-1][0]["type"] == "mined"
assert logs[-1][0]["logIndex"] == "0x0"
assert logs[-1][0]["transactionIndex"] == "0x0"
assert logs[-1][0]["transactionHash"] == tx_hashes[-1]
assert logs[-1][0]["blockHash"] == data_encoder(test_app.services.chain.chain.head.hash)
assert logs[-1][0]["blockNumber"] == quantity_encoder(test_app.services.chain.chain.head.number)
assert logs[-1][0]["address"] == contract_address
logs_in_range.append(logs[-1][0])
logs.append(test_app.rpc_request("eth_getFilterChanges", latest_filter_id))
assert logs[-1] == logs[-2] # latest and pending filter see same (mined) log
logs.append(test_app.rpc_request("eth_getFilterChanges", latest_filter_id))
assert logs[-1] == []
test_app.mine_next_block()
logs.append(test_app.rpc_request("eth_getFilterChanges", pending_filter_id))
assert logs[-1] == []
range_filter_id = test_app.rpc_request(
"eth_newFilter",
{"fromBlock": quantity_encoder(test_app.services.chain.chain.head.number - 3), "toBlock": "pending"},
)
tx_hashes.append(test_app.rpc_request("eth_sendTransaction", tx))
logs.append(test_app.rpc_request("eth_getFilterChanges", range_filter_id))
assert sorted(logs[-1]) == sorted(logs_in_range + [pending_log])
def test_get_logs(test_app):
test_app.mine_next_block() # start with a fresh block
n0 = test_app.services.chain.chain.head.number
sender = address_encoder(test_app.services.accounts.unlocked_accounts()[0].address)
contract_creation = {"from": sender, "data": data_encoder(LOG_EVM)}
tx_hash = test_app.rpc_request("eth_sendTransaction", contract_creation)
test_app.mine_next_block()
receipt = test_app.rpc_request("eth_getTransactionReceipt", tx_hash)
contract_address = receipt["contractAddress"]
tx = {"from": sender, "to": contract_address}
# single log in pending block
test_app.rpc_request("eth_sendTransaction", tx)
logs1 = test_app.rpc_request("eth_getLogs", {"fromBlock": "pending", "toBlock": "pending"})
assert len(logs1) == 1
assert logs1[0]["type"] == "pending"
assert logs1[0]["logIndex"] == None
assert logs1[0]["transactionIndex"] == None
assert logs1[0]["transactionHash"] == None
assert logs1[0]["blockHash"] == None
assert logs1[0]["blockNumber"] == None
assert logs1[0]["address"] == contract_address
logs2 = test_app.rpc_request("eth_getLogs", {"fromBlock": "pending", "toBlock": "pending"})
assert logs2 == logs1
# same log, but now mined in head
test_app.mine_next_block()
logs3 = test_app.rpc_request("eth_getLogs", {"fromBlock": "latest", "toBlock": "latest"})
assert len(logs3) == 1
assert logs3[0]["type"] == "mined"
assert logs3[0]["logIndex"] == "0x0"
assert logs3[0]["transactionIndex"] == "0x0"
assert logs3[0]["blockHash"] == data_encoder(test_app.services.chain.chain.head.hash)
assert logs3[0]["blockNumber"] == quantity_encoder(test_app.services.chain.chain.head.number)
assert logs3[0]["address"] == contract_address
# another log in pending block
test_app.rpc_request("eth_sendTransaction", tx)
logs4 = test_app.rpc_request("eth_getLogs", {"fromBlock": "latest", "toBlock": "pending"})
assert logs4 == [logs1[0], logs3[0]] or logs4 == [logs3[0], logs1[0]]
# two logs in pending block
test_app.rpc_request("eth_sendTransaction", tx)
logs5 = test_app.rpc_request("eth_getLogs", {"fromBlock": "pending", "toBlock": "pending"})
assert len(logs5) == 2
assert logs5[0] == logs5[1] == logs1[0]
# two logs in head
test_app.mine_next_block()
logs6 = test_app.rpc_request("eth_getLogs", {"fromBlock": "latest", "toBlock": "pending"})
for log in logs6:
assert log["type"] == "mined"
assert log["logIndex"] == "0x0"
assert log["blockHash"] == data_encoder(test_app.services.chain.chain.head.hash)
assert log["blockNumber"] == quantity_encoder(test_app.services.chain.chain.head.number)
assert log["address"] == contract_address
assert sorted([log["transactionIndex"] for log in logs6]) == ["0x0", "0x1"]
# everything together with another log in pending block
test_app.rpc_request("eth_sendTransaction", tx)
logs7 = test_app.rpc_request("eth_getLogs", {"fromBlock": quantity_encoder(n0), "toBlock": "pending"})
assert sorted(logs7) == sorted(logs3 + logs6 + logs1)
def poll(self, transaction_hash, confirmations=None, timeout=None):
""" Wait until the `transaction_hash` is applied or rejected.
If timeout is None, this could wait indefinitely!
Args:
transaction_hash (hash): Transaction hash that we are waiting for.
confirmations (int): Number of block confirmations that we will
wait for.
timeout (float): Timeout in seconds, raise an Excpetion on
timeout.
"""
if transaction_hash.startswith('0x'):
warnings.warn(
'transaction_hash seems to be already encoded, this will'
' result in unexpected behavior'
)
if len(transaction_hash) != 32:
raise ValueError(
'transaction_hash length must be 32 (it might be hex encode)'
)
transaction_hash = data_encoder(transaction_hash)
deadline = None
if timeout:
deadline = gevent.Timeout(timeout)
deadline.start()
try:
# used to check if the transaction was removed, this could happen
# if gas price is to low:
#
# > Transaction (acbca3d6) below gas price (tx=1 Wei ask=18
# > Shannon). All sequential txs from this address(7d0eae79)
# > will be ignored
#
last_result = None
while True:
# Could return None for a short period of time, until the
# transaction is added to the pool
transaction = self.call('eth_getTransactionByHash', transaction_hash)
# if the transaction was added to the pool and then removed
if transaction is None and last_result is not None:
raise Exception('invalid transaction, check gas price')
# the transaction was added to the pool and mined
if transaction and transaction['blockNumber'] is not None:
break
last_result = transaction
gevent.sleep(.5)
if confirmations:
# this will wait for both APPLIED and REVERTED transactions
transaction_block = quantity_decoder(transaction['blockNumber'])
confirmation_block = transaction_block + confirmations
block_number = self.blocknumber()
while block_number < confirmation_block:
gevent.sleep(.5)
block_number = self.blocknumber()
except gevent.Timeout:
raise Exception('timeout when polling for transaction')
finally:
if deadline:
deadline.cancel()
def topic_encoder(t):
assert isinstance(t, (int, long))
return data_encoder(int_to_big_endian(t))
def topic_encoder(topic):
assert isinstance(topic, int)
return data_encoder(int_to_big_endian(topic))
def test_get_filter_changes(test_app):
test_app.mine_next_block() # start with a fresh block
n0 = test_app.services.chain.chain.head.number
sender = address_encoder(
test_app.services.accounts.unlocked_accounts()[0].address)
contract_creation = {'from': sender, 'data': data_encoder(LOG_EVM)}
tx_hash = test_app.rpc_request('eth_sendTransaction', contract_creation)
test_app.mine_next_block()
receipt = test_app.rpc_request('eth_getTransactionReceipt', tx_hash)
contract_address = receipt['contractAddress']
tx = {'from': sender, 'to': contract_address}
pending_filter_id = test_app.rpc_request('eth_newFilter', {
'fromBlock': 'pending',
'toBlock': 'pending'
})
latest_filter_id = test_app.rpc_request('eth_newFilter', {
'fromBlock': 'latest',
'toBlock': 'latest'
})
tx_hashes = []
logs = []
# tx in pending block
tx_hashes.append(test_app.rpc_request('eth_sendTransaction', tx))
logs.append(test_app.rpc_request('eth_getFilterChanges',
pending_filter_id))
assert len(logs[-1]) == 1
assert logs[-1][0]['type'] == 'pending'
assert logs[-1][0]['logIndex'] == None
assert logs[-1][0]['transactionIndex'] == None
assert logs[-1][0]['transactionHash'] == None
assert logs[-1][0]['blockHash'] == None
assert logs[-1][0]['blockNumber'] == None
assert logs[-1][0]['address'] == contract_address
pending_log = logs[-1][0]
logs.append(test_app.rpc_request('eth_getFilterChanges',
pending_filter_id))
assert logs[-1] == []
logs.append(test_app.rpc_request('eth_getFilterChanges', latest_filter_id))
assert logs[-1] == []
test_app.mine_next_block()
logs.append(test_app.rpc_request('eth_getFilterChanges', latest_filter_id))
assert len(logs[-1]) == 1 # log from before, but now mined
assert logs[-1][0]['type'] == 'mined'
assert logs[-1][0]['logIndex'] == '0x0'
assert logs[-1][0]['transactionIndex'] == '0x0'
assert logs[-1][0]['transactionHash'] == tx_hashes[-1]
assert logs[-1][0]['blockHash'] == data_encoder(
test_app.services.chain.chain.head.hash)
assert logs[-1][0]['blockNumber'] == quantity_encoder(
test_app.services.chain.chain.head.number)
assert logs[-1][0]['address'] == contract_address
logs_in_range = [logs[-1][0]]
# send tx and mine block
tx_hashes.append(test_app.rpc_request('eth_sendTransaction', tx))
test_app.mine_next_block()
logs.append(test_app.rpc_request('eth_getFilterChanges',
pending_filter_id))
assert len(logs[-1]) == 1
assert logs[-1][0]['type'] == 'mined'
assert logs[-1][0]['logIndex'] == '0x0'
assert logs[-1][0]['transactionIndex'] == '0x0'
assert logs[-1][0]['transactionHash'] == tx_hashes[-1]
assert logs[-1][0]['blockHash'] == data_encoder(
test_app.services.chain.chain.head.hash)
assert logs[-1][0]['blockNumber'] == quantity_encoder(
test_app.services.chain.chain.head.number)
assert logs[-1][0]['address'] == contract_address
logs_in_range.append(logs[-1][0])
logs.append(test_app.rpc_request('eth_getFilterChanges', latest_filter_id))
assert logs[-1] == logs[
-2] # latest and pending filter see same (mined) log
logs.append(test_app.rpc_request('eth_getFilterChanges', latest_filter_id))
assert logs[-1] == []
test_app.mine_next_block()
logs.append(test_app.rpc_request('eth_getFilterChanges',
pending_filter_id))
assert logs[-1] == []
range_filter_id = test_app.rpc_request(
'eth_newFilter', {
'fromBlock':
quantity_encoder(test_app.services.chain.chain.head.number - 3),
'toBlock':
'pending'
})
tx_hashes.append(test_app.rpc_request('eth_sendTransaction', tx))
logs.append(test_app.rpc_request('eth_getFilterChanges', range_filter_id))
assert sorted(logs[-1]) == sorted(logs_in_range + [pending_log])
def topic_encoder(t):
assert isinstance(t, (int, long))
return data_encoder(int_to_big_endian(t))
def test_get_filter_changes(test_app):
test_app.mine_next_block() # start with a fresh block
n0 = test_app.services.chain.chain.head.number
sender = address_encoder(test_app.services.accounts.unlocked_accounts()[0].address)
contract_creation = {
'from': sender,
'data': data_encoder(LOG_EVM)
}
tx_hash = test_app.rpc_request('eth_sendTransaction', contract_creation)
test_app.mine_next_block()
receipt = test_app.rpc_request('eth_getTransactionReceipt', tx_hash)
contract_address = receipt['contractAddress']
tx = {
'from': sender,
'to': contract_address
}
pending_filter_id = test_app.rpc_request('eth_newFilter', {
'fromBlock': 'pending',
'toBlock': 'pending'
});
latest_filter_id = test_app.rpc_request('eth_newFilter', {
'fromBlock': 'latest',
'toBlock': 'latest'
});
tx_hashes = []
logs = []
# tx in pending block
tx_hashes.append(test_app.rpc_request('eth_sendTransaction', tx))
logs.append(test_app.rpc_request('eth_getFilterChanges', pending_filter_id))
assert len(logs[-1]) == 1
assert logs[-1][0]['type'] == 'pending'
assert logs[-1][0]['logIndex'] == None
assert logs[-1][0]['transactionIndex'] == None
assert logs[-1][0]['transactionHash'] == None
assert logs[-1][0]['blockHash'] == None
assert logs[-1][0]['blockNumber'] == None
assert logs[-1][0]['address'] == contract_address
pending_log = logs[-1][0]
logs.append(test_app.rpc_request('eth_getFilterChanges', pending_filter_id))
assert logs[-1] == []
logs.append(test_app.rpc_request('eth_getFilterChanges', latest_filter_id))
assert logs[-1] == []
test_app.mine_next_block()
logs.append(test_app.rpc_request('eth_getFilterChanges', latest_filter_id))
assert len(logs[-1]) == 1 # log from before, but now mined
assert logs[-1][0]['type'] == 'mined'
assert logs[-1][0]['logIndex'] == '0x0'
assert logs[-1][0]['transactionIndex'] == '0x0'
assert logs[-1][0]['transactionHash'] == tx_hashes[-1]
assert logs[-1][0]['blockHash'] == data_encoder(test_app.services.chain.chain.head.hash)
assert logs[-1][0]['blockNumber'] == quantity_encoder(test_app.services.chain.chain.head.number)
assert logs[-1][0]['address'] == contract_address
logs_in_range = [logs[-1][0]]
# send tx and mine block
tx_hashes.append(test_app.rpc_request('eth_sendTransaction', tx))
test_app.mine_next_block()
logs.append(test_app.rpc_request('eth_getFilterChanges', pending_filter_id))
assert len(logs[-1]) == 1
assert logs[-1][0]['type'] == 'mined'
assert logs[-1][0]['logIndex'] == '0x0'
assert logs[-1][0]['transactionIndex'] == '0x0'
assert logs[-1][0]['transactionHash'] == tx_hashes[-1]
assert logs[-1][0]['blockHash'] == data_encoder(test_app.services.chain.chain.head.hash)
assert logs[-1][0]['blockNumber'] == quantity_encoder(test_app.services.chain.chain.head.number)
assert logs[-1][0]['address'] == contract_address
logs_in_range.append(logs[-1][0])
logs.append(test_app.rpc_request('eth_getFilterChanges', latest_filter_id))
assert logs[-1] == logs[-2] # latest and pending filter see same (mined) log
logs.append(test_app.rpc_request('eth_getFilterChanges', latest_filter_id))
assert logs[-1] == []
test_app.mine_next_block()
logs.append(test_app.rpc_request('eth_getFilterChanges', pending_filter_id))
assert logs[-1] == []
range_filter_id = test_app.rpc_request('eth_newFilter', {
'fromBlock': quantity_encoder(test_app.services.chain.chain.head.number - 3),
'toBlock': 'pending'
})
tx_hashes.append(test_app.rpc_request('eth_sendTransaction', tx))
logs.append(test_app.rpc_request('eth_getFilterChanges', range_filter_id))
assert sorted(logs[-1]) == sorted(logs_in_range + [pending_log])
def _serialize(self, value, attr, obj):
return data_encoder(value)
def test_get_logs(test_app):
test_app.mine_next_block() # start with a fresh block
n0 = test_app.services.chain.chain.head.number
sender = address_encoder(
test_app.services.accounts.unlocked_accounts()[0].address)
contract_creation = {'from': sender, 'data': data_encoder(LOG_EVM)}
tx_hash = test_app.rpc_request('eth_sendTransaction', contract_creation)
test_app.mine_next_block()
receipt = test_app.rpc_request('eth_getTransactionReceipt', tx_hash)
contract_address = receipt['contractAddress']
tx = {'from': sender, 'to': contract_address}
# single log in pending block
test_app.rpc_request('eth_sendTransaction', tx)
logs1 = test_app.rpc_request('eth_getLogs', {
'fromBlock': 'pending',
'toBlock': 'pending'
})
assert len(logs1) == 1
assert logs1[0]['type'] == 'pending'
assert logs1[0]['logIndex'] == None
assert logs1[0]['transactionIndex'] == None
assert logs1[0]['transactionHash'] == None
assert logs1[0]['blockHash'] == None
assert logs1[0]['blockNumber'] == None
assert logs1[0]['address'] == contract_address
logs2 = test_app.rpc_request('eth_getLogs', {
'fromBlock': 'pending',
'toBlock': 'pending'
})
assert logs2 == logs1
# same log, but now mined in head
test_app.mine_next_block()
logs3 = test_app.rpc_request('eth_getLogs', {
'fromBlock': 'latest',
'toBlock': 'latest'
})
assert len(logs3) == 1
assert logs3[0]['type'] == 'mined'
assert logs3[0]['logIndex'] == '0x0'
assert logs3[0]['transactionIndex'] == '0x0'
assert logs3[0]['blockHash'] == data_encoder(
test_app.services.chain.chain.head.hash)
assert logs3[0]['blockNumber'] == quantity_encoder(
test_app.services.chain.chain.head.number)
assert logs3[0]['address'] == contract_address
# another log in pending block
test_app.rpc_request('eth_sendTransaction', tx)
logs4 = test_app.rpc_request('eth_getLogs', {
'fromBlock': 'latest',
'toBlock': 'pending'
})
assert logs4 == [logs1[0], logs3[0]] or logs4 == [logs3[0], logs1[0]]
# two logs in pending block
test_app.rpc_request('eth_sendTransaction', tx)
logs5 = test_app.rpc_request('eth_getLogs', {
'fromBlock': 'pending',
'toBlock': 'pending'
})
assert len(logs5) == 2
assert logs5[0] == logs5[1] == logs1[0]
# two logs in head
test_app.mine_next_block()
logs6 = test_app.rpc_request('eth_getLogs', {
'fromBlock': 'latest',
'toBlock': 'pending'
})
for log in logs6:
assert log['type'] == 'mined'
assert log['logIndex'] == '0x0'
assert log['blockHash'] == data_encoder(
test_app.services.chain.chain.head.hash)
assert log['blockNumber'] == quantity_encoder(
test_app.services.chain.chain.head.number)
assert log['address'] == contract_address
assert sorted([log['transactionIndex'] for log in logs6]) == ['0x0', '0x1']
# everything together with another log in pending block
test_app.rpc_request('eth_sendTransaction', tx)
logs7 = test_app.rpc_request('eth_getLogs', {
'fromBlock': quantity_encoder(n0),
'toBlock': 'pending'
})
assert sorted(logs7) == sorted(logs3 + logs6 + logs1)