def deploy(
web3: Any,
prover_client: ProverClient,
deployer_eth_address: str,
deployer_eth_private_key: Optional[bytes],
token_address: Optional[str] = None,
permitted_dispatcher: Optional[str] = None,
vk_hash: Optional[str] = None,
deploy_gas: Optional[int] = None
) -> Tuple[MixerClient, contracts.InstanceDescription]:
"""
Deploy Zeth contracts.
"""
prover_config = prover_client.get_configuration()
vk = prover_client.get_verification_key()
contracts_dir = get_contracts_dir()
zksnark = get_zksnark_provider(prover_config.zksnark_name)
pp = prover_config.pairing_parameters
mixer_name = zksnark.get_contract_name(pp)
mixer_src = os.path.join(contracts_dir, mixer_name + ".sol")
vk_hash_evm = list(hex_to_uint256_list(vk_hash)) if vk_hash else [0, 0]
assert len(vk_hash_evm) == 2
# Constructor parameters have the form:
# uint256 mk_depth
# address token
# ... snark-specific key data ...
constructor_parameters: List[Any] = [
constants.ZETH_MERKLE_TREE_DEPTH, # mk_depth
token_address or ZERO_ADDRESS, # token
zksnark.verification_key_to_contract_parameters(vk, pp), # vk
permitted_dispatcher or ZERO_ADDRESS, # permitted_dispatcher
vk_hash_evm # vk_hash
]
mixer_description = contracts.InstanceDescription.deploy(
web3,
mixer_src,
mixer_name,
deployer_eth_address,
deployer_eth_private_key,
deploy_gas,
compiler_flags={},
args=constructor_parameters)
mixer_instance = mixer_description.instantiate(web3)
client = MixerClient(web3, prover_config, mixer_instance)
return client, mixer_description
def deploy(
web3: Any,
prover_client: ProverClient,
deployer_eth_address: str,
deployer_eth_private_key: Optional[bytes],
token_address: Optional[str] = None,
deploy_gas: Optional[int] = None
) -> Tuple[MixerClient, contracts.InstanceDescription]:
"""
Deploy Zeth contracts.
"""
prover_config = prover_client.get_configuration()
zksnark = get_zksnark_provider(prover_config.zksnark_name)
vk_proto = prover_client.get_verification_key()
pp = prover_config.pairing_parameters
vk = zksnark.verification_key_from_proto(vk_proto)
deploy_gas = deploy_gas or constants.DEPLOYMENT_GAS_WEI
contracts_dir = get_contracts_dir()
mixer_name = zksnark.get_contract_name(pp)
mixer_src = os.path.join(contracts_dir, mixer_name + ".sol")
# Constructor parameters have the form:
# uint256 mk_depth
# address token
# ... snark-specific key data ...
constructor_parameters: List[Any] = [
constants.ZETH_MERKLE_TREE_DEPTH, # mk_depth
token_address or ZERO_ADDRESS, # token
zksnark.verification_key_to_contract_parameters(vk, pp), # vk
]
mixer_description = contracts.InstanceDescription.deploy(
web3,
mixer_src,
mixer_name,
deployer_eth_address,
deployer_eth_private_key,
deploy_gas,
compiler_flags={},
args=constructor_parameters)
mixer_instance = mixer_description.instantiate(web3)
client = MixerClient(web3, prover_config, mixer_instance)
return client, mixer_description
def deploy(
web3: Any,
prover_server_endpoint: str,
deployer_eth_address: str,
deployer_eth_private_key: Optional[bytes],
token_address: Optional[str] = None,
deploy_gas: Optional[int] = None,
zksnark: Optional[IZKSnarkProvider] = None) \
-> Tuple[MixerClient, contracts.InstanceDescription]:
"""
Deploy Zeth contracts.
"""
print("[INFO] 1. Fetching verification key from the proving server")
zksnark = zksnark or get_zksnark_provider(constants.ZKSNARK_DEFAULT)
prover_client = ProverClient(prover_server_endpoint)
vk_proto = prover_client.get_verification_key()
vk = zksnark.verification_key_from_proto(vk_proto)
deploy_gas = deploy_gas or constants.DEPLOYMENT_GAS_WEI
print("[INFO] 2. Received VK, writing verification key...")
write_verification_key(vk, "vk.json")
print("[INFO] 3. VK written, deploying smart contracts...")
contracts_dir = get_contracts_dir()
mixer_name = zksnark.get_contract_name()
mixer_src = os.path.join(contracts_dir, mixer_name + ".sol")
verification_key_params = zksnark.verification_key_parameters(vk)
mixer_description = contracts.InstanceDescription.deploy(
web3,
mixer_src,
mixer_name,
deployer_eth_address,
deployer_eth_private_key,
deploy_gas, {},
mk_depth=constants.ZETH_MERKLE_TREE_DEPTH,
token=token_address
or "0x0000000000000000000000000000000000000000",
**verification_key_params)
mixer_instance = mixer_description.instantiate(web3)
client = MixerClient(web3, prover_client, mixer_instance, zksnark)
return client, mixer_description