def mk_instance_address(self, native_contract, sender, nonce):
assert native_contract.address.startswith(
self.native_contract_address_prefix)
addr = '\0' * 4
addr += processblock.mk_contract_address(sender, nonce)[:12]
addr += native_contract.address[-4:]
return addr
def create_spread(creator_contract):
# will create a Spread contract
print
print 'creating spread contract'
tx = client.send_transaction(sender, to=creator_contract, startgas=300000)
print 'res', tx
spread_contract = mk_contract_address(creator_contract.decode('hex'), nonce=0)
return spread_contract.encode('hex')
def create_spread(creator_contract):
# will create a Spread contract
print
print 'creating spread contract'
tx = client.send_transaction(sender, to=creator_contract, startgas=300000)
print 'res', tx
spread_contract = mk_contract_address(creator_contract.decode('hex'),
nonce=0)
return spread_contract.encode('hex')
def sendTransaction(self, data):
"""
extend spec to support v,r,s signed transactions
"""
if not isinstance(data, dict):
raise BadRequestError('Transaction must be an object')
def get_data_default(key, decoder, default=None):
if key in data:
return decoder(data[key])
return default
to = get_data_default('to', address_decoder, b'')
gas_key = 'gas' if 'gas' in data else 'startgas'
startgas = get_data_default(gas_key, quantity_decoder, default_startgas)
gasprice_key = 'gasPrice' if 'gasPrice' in data else 'gasprice'
gasprice = get_data_default(gasprice_key, quantity_decoder, default_gasprice)
value = get_data_default('value', quantity_decoder, 0)
data_ = get_data_default('data', data_decoder, b'')
v = signed = get_data_default('v', quantity_decoder, 0)
r = get_data_default('r', quantity_decoder, 0)
s = get_data_default('s', quantity_decoder, 0)
nonce = get_data_default('nonce', quantity_decoder, None)
sender = get_data_default('from', address_decoder, self.app.services.accounts.coinbase)
assert len(sender) == 20
# create transaction
if signed:
assert nonce is not None, 'signed but no nonce provided'
assert v and r and s
else:
nonce = self.app.services.chain.chain.head_candidate.get_nonce(sender)
tx = Transaction(nonce, gasprice, startgas, to, value, data_, v, r, s)
tx._sender = None
print tx.log_dict()
if not signed:
assert sender in self.app.services.accounts, 'no account for sender'
self.app.services.accounts.sign_tx(sender, tx)
self.app.services.chain.add_transaction(tx, origin=None)
log.debug('decoded tx', tx=tx.log_dict())
if to == b'': # create
return address_encoder(processblock.mk_contract_address(tx.sender, nonce))
else:
return data_encoder(tx.hash)
def sendTransaction(self, data):
"""
extend spec to support v,r,s signed transactions
"""
if not isinstance(data, dict):
raise BadRequestError('Transaction must be an object')
def get_data_default(key, decoder, default=None):
if key in data:
return decoder(data[key])
return default
to = get_data_default('to', address_decoder, b'')
startgas = get_data_default('gas', quantity_decoder, default_startgas)
gasprice = get_data_default('gasPrice', quantity_decoder,
default_gasprice)
value = get_data_default('value', quantity_decoder, 0)
data_ = get_data_default('data', data_decoder, b'')
v = signed = get_data_default('v', quantity_decoder, 0)
r = get_data_default('r', quantity_decoder, 0)
s = get_data_default('s', quantity_decoder, 0)
nonce = get_data_default('nonce', quantity_decoder, None)
sender = get_data_default('from', address_decoder,
self.app.services.accounts.coinbase)
# create transaction
if signed:
assert nonce is not None, 'signed but no nonce provided'
assert v and r and s
else:
nonce = self.app.services.chain.chain.head_candidate.get_nonce(
sender)
tx = Transaction(nonce, gasprice, startgas, to, value, data_, v, r, s)
if not signed:
assert sender in self.app.services.accounts, 'no account for sender'
self.app.services.accounts.sign_tx(sender, tx)
self.app.services.chain.add_transaction(tx, origin=None)
log.debug('decoded tx', tx=tx.to_dict())
if to == b'': # create
return address_encoder(
processblock.mk_contract_address(tx.sender, nonce))
else:
return data_encoder(tx.hash)
def mk_instance_address(self, native_contract, sender, nonce):
assert native_contract.address.startswith(self.native_contract_address_prefix)
addr = '\0' * 4
addr += processblock.mk_contract_address(sender, nonce)[:12]
addr += native_contract.address[-4:]
return addr
def creates(self):
"returns the address of a contract created by this tx"
if self.to == '':
return mk_contract_address(self.sender, self.nonce)
def creates(self):
"returns the address of a contract created by this tx"
if self.to == '':
return mk_contract_address(self.sender, self.nonce)
