def tx_call(self,
keypair,
function,
arg,
amount=10,
gas=CONTRACT_DEFAULT_GAS,
gas_price=CONTRACT_DEFAULT_GAS_PRICE,
fee=DEFAULT_FEE,
vm_version=CONTRACT_DEFAULT_VM_VERSION,
tx_ttl=DEFAULT_TX_TTL):
"""Call a sophia contract"""
if not utils.is_valid_hash(self.address, prefix="ct"):
raise ValueError("Missing contract id")
try:
call_data = self.encode_calldata(function, arg)
txb = TxBuilder(self.client, keypair)
tx, sg, tx_hash = txb.tx_contract_call(self.address, call_data,
function, arg, amount, gas,
gas_price, vm_version, fee,
tx_ttl)
# post the transaction to the chain
txb.post_transaction(tx, tx_hash)
# wait for transaction to be mined
txb.wait_tx(tx_hash)
# unsigned transaction of the call
call_obj = self.client.cli.get_transaction_info_by_hash(
hash=tx_hash)
return call_obj
except OpenAPIClientException as e:
raise ContractError(e)
def tx_create(self,
keypair,
amount=1,
deposit=CONTRACT_DEFAULT_DEPOSIT,
init_state="()",
gas=CONTRACT_DEFAULT_GAS,
gas_price=CONTRACT_DEFAULT_GAS_PRICE,
fee=DEFAULT_FEE,
vm_version=CONTRACT_DEFAULT_VM_VERSION,
tx_ttl=DEFAULT_TX_TTL):
"""
Create a contract and deploy it to the chain
:return: address
"""
try:
call_data = self.encode_calldata("init", init_state)
# get the transaction builder
txb = TxBuilder(self.client, keypair)
# create spend_tx
tx, sg, tx_hash, contract_id = txb.tx_contract_create(
self.bytecode, call_data, amount, deposit, gas, gas_price,
vm_version, fee, tx_ttl)
# post the transaction to the chain
txb.post_transaction(tx, tx_hash)
if self.client.blocking_mode:
txb.wait_tx(tx_hash)
# store the contract address in the instance variabl
self.address = contract_id
return tx
except OpenAPIClientException as e:
raise ContractError(e)
def update(self,
account,
target,
name_ttl=DEFAULT_NAME_TTL,
client_ttl=NAME_CLIENT_TTL,
fee=DEFAULT_FEE,
tx_ttl=DEFAULT_TX_TTL):
if self.status != NameStatus.CLAIMED:
raise NameUpdateError('Must be claimed to update pointer')
if isinstance(target, oracle.Oracle):
if target.oracle_id is None:
raise ValueError(
'You must register the oracle before using it as target')
target = target.oracle_id
# TODO: check the value for name ttl?
# get the name_id and pointers
name_id = hashing.namehash_encode("nm", self.domain)
pointers = self._get_pointers(target)
# get the transaction builder
txb = TxBuilder(self.client, account)
# create claim transaction
tx, sg, tx_hash = txb.tx_name_update(name_id, pointers, name_ttl,
client_ttl, fee, tx_ttl)
# post the transaction to the chain
txb.post_transaction(tx, tx_hash)
# ensure tx
if self.client.blocking_mode:
txb.wait_tx(tx_hash)
return tx_hash
def revoke(self, account, fee=DEFAULT_FEE, tx_ttl=DEFAULT_TX_TTL):
"""
revoke a name
:return: the transaction
"""
# get the name_id and pointers
name_id = hashing.namehash_encode("nm", self.domain)
# get the transaction builder
txb = TxBuilder(self.client, account)
# create claim transaction
tx, sg, tx_hash = txb.tx_name_revoke(name_id, fee, tx_ttl)
# post the transaction to the chain
txb.post_transaction(tx, tx_hash)
# ensure tx
if self.client.blocking_mode:
txb.wait_tx(tx_hash)
self.status = NameStatus.REVOKED
return tx_hash
def claim(self, account, fee=DEFAULT_FEE, tx_ttl=DEFAULT_TX_TTL):
if self.preclaimed_block_height is None:
raise MissingPreclaim(
'You must call preclaim before claiming a name')
# name encoded TODO: shall this goes into transactions?
name = AEName._encode_name(self.domain)
# get the transaction builder
txb = TxBuilder(self.client, account)
# create claim transaction
tx, sg, tx_hash = txb.tx_name_claim(name, self.preclaim_salt, fee,
tx_ttl)
# post the transaction to the chain
txb.post_transaction(tx, tx_hash)
# ensure tx
if self.client.blocking_mode:
txb.wait_tx(tx_hash)
# update status
self.status = AEName.Status.CLAIMED
return tx_hash
def preclaim(self, account, fee=DEFAULT_FEE, tx_ttl=DEFAULT_TX_TTL):
"""
Execute a name preclaim
"""
# check which block we used to create the preclaim
self.preclaimed_block_height = self.client.get_current_key_block_height(
)
# calculate the commitment hash
commitment_hash = self._get_commitment_hash()
# get the transaction builder
txb = TxBuilder(self.client, account)
# create spend_tx
tx, sg, tx_hash = txb.tx_name_preclaim(commitment_hash, fee, tx_ttl)
# post the transaction to the chain
txb.post_transaction(tx, tx_hash)
if self.client.blocking_mode:
txb.wait_tx(tx_hash)
# update local status
self.status = AEName.Status.PRECLAIMED
self.preclaim_tx_hash = tx_hash
return tx_hash
def transfer_ownership(self,
account,
recipient_pubkey,
fee=DEFAULT_FEE,
tx_ttl=DEFAULT_TX_TTL):
"""
transfer ownership of a name
:return: the transaction
"""
# get the name_id and pointers
name_id = hashing.namehash_encode("nm", self.domain)
# get the transaction builder
txb = TxBuilder(self.client, account)
# create claim transaction
tx, sg, tx_hash = txb.tx_name_transfer(name_id, recipient_pubkey, fee,
tx_ttl)
# post the transaction to the chain
txb.post_transaction(tx, tx_hash)
# update local status
self.status = NameStatus.TRANSFERRED
# ensure tx
if self.client.blocking_mode:
txb.wait_tx(tx_hash)
return tx_hash