368 lines
11 KiB
Python
368 lines
11 KiB
Python
# standard imports
|
|
import logging
|
|
|
|
# third-party imports
|
|
import web3
|
|
import celery
|
|
from cic_registry import CICRegistry
|
|
from cic_registry.chain import ChainSpec
|
|
from erc20_single_shot_faucet import Faucet
|
|
from cic_registry import zero_address
|
|
|
|
# local import
|
|
from cic_eth.eth import RpcClient
|
|
from cic_eth.eth import registry_extra_identifiers
|
|
from cic_eth.eth.task import sign_and_register_tx
|
|
from cic_eth.eth.task import create_check_gas_and_send_task
|
|
from cic_eth.eth.factory import TxFactory
|
|
from cic_eth.db.models.nonce import Nonce
|
|
from cic_eth.db.models.base import SessionBase
|
|
from cic_eth.db.models.role import AccountRole
|
|
from cic_eth.db.models.tx import TxCache
|
|
from cic_eth.eth.util import unpack_signed_raw_tx
|
|
from cic_eth.error import RoleMissingError
|
|
|
|
#logg = logging.getLogger(__name__)
|
|
logg = logging.getLogger()
|
|
celery_app = celery.current_app
|
|
|
|
|
|
class AccountTxFactory(TxFactory):
|
|
"""Factory for creating account index contract transactions
|
|
"""
|
|
def add(
|
|
self,
|
|
address,
|
|
chain_spec,
|
|
):
|
|
"""Register an Ethereum account address with the on-chain account registry
|
|
|
|
:param address: Ethereum account address to add
|
|
:type address: str, 0x-hex
|
|
:param chain_spec: Chain to build transaction for
|
|
:type chain_spec: cic_registry.chain.ChainSpec
|
|
:returns: Unsigned "AccountRegistry.add" transaction in standard Ethereum format
|
|
:rtype: dict
|
|
"""
|
|
|
|
c = CICRegistry.get_contract(chain_spec, 'AccountRegistry')
|
|
f = c.function('add')
|
|
tx_add_buildable = f(
|
|
address,
|
|
)
|
|
gas = c.gas('add')
|
|
tx_add = tx_add_buildable.buildTransaction({
|
|
'from': self.address,
|
|
'gas': gas,
|
|
'gasPrice': self.gas_price,
|
|
'chainId': chain_spec.chain_id(),
|
|
'nonce': self.next_nonce(),
|
|
'value': 0,
|
|
})
|
|
return tx_add
|
|
|
|
|
|
def gift(
|
|
self,
|
|
address,
|
|
chain_spec,
|
|
):
|
|
"""Trigger the on-chain faucet to disburse tokens to the provided Ethereum account
|
|
|
|
:param address: Ethereum account address to gift to
|
|
:type address: str, 0x-hex
|
|
:param chain_spec: Chain to build transaction for
|
|
:type chain_spec: cic_registry.chain.ChainSpec
|
|
:returns: Unsigned "Faucet.giveTo" transaction in standard Ethereum format
|
|
:rtype: dict
|
|
"""
|
|
|
|
c = CICRegistry.get_contract(chain_spec, 'Faucet')
|
|
f = c.function('giveTo')
|
|
tx_add_buildable = f(address)
|
|
gas = c.gas('add')
|
|
tx_add = tx_add_buildable.buildTransaction({
|
|
'from': self.address,
|
|
'gas': gas,
|
|
'gasPrice': self.gas_price,
|
|
'chainId': chain_spec.chain_id(),
|
|
'nonce': self.next_nonce(),
|
|
'value': 0,
|
|
})
|
|
return tx_add
|
|
|
|
|
|
def unpack_register(data):
|
|
"""Verifies that a transaction is an "AccountRegister.add" transaction, and extracts call parameters from it.
|
|
|
|
:param data: Raw input data from Ethereum transaction.
|
|
:type data: str, 0x-hex
|
|
:raises ValueError: Function signature does not match AccountRegister.add
|
|
:returns: Parsed parameters
|
|
:rtype: dict
|
|
"""
|
|
f = data[2:10]
|
|
if f != '0a3b0a4f':
|
|
raise ValueError('Invalid account index register data ({})'.format(f))
|
|
|
|
d = data[10:]
|
|
return {
|
|
'to': web3.Web3.toChecksumAddress('0x' + d[64-40:64]),
|
|
}
|
|
|
|
|
|
def unpack_gift(data):
|
|
"""Verifies that a transaction is a "Faucet.giveTo" transaction, and extracts call parameters from it.
|
|
|
|
:param data: Raw input data from Ethereum transaction.
|
|
:type data: str, 0x-hex
|
|
:raises ValueError: Function signature does not match AccountRegister.add
|
|
:returns: Parsed parameters
|
|
:rtype: dict
|
|
"""
|
|
f = data[2:10]
|
|
if f != '63e4bff4':
|
|
raise ValueError('Invalid account index register data ({})'.format(f))
|
|
|
|
d = data[10:]
|
|
return {
|
|
'to': web3.Web3.toChecksumAddress('0x' + d[64-40:64]),
|
|
}
|
|
|
|
|
|
@celery_app.task()
|
|
def create(password, chain_str):
|
|
"""Creates and stores a new ethereum account in the keystore.
|
|
|
|
The password is passed on to the wallet backend, no encryption is performed in the task worker.
|
|
|
|
:param password: Password to encrypt private key with
|
|
:type password: str
|
|
:param chain_str: Chain spec string representation
|
|
:type chain_str: str
|
|
:returns: Ethereum address of newly created account
|
|
:rtype: str, 0x-hex
|
|
"""
|
|
chain_spec = ChainSpec.from_chain_str(chain_str)
|
|
c = RpcClient(chain_spec)
|
|
a = c.w3.eth.personal.new_account(password)
|
|
logg.debug('created account {}'.format(a))
|
|
|
|
# Initialize nonce provider record for account
|
|
n = c.w3.eth.getTransactionCount(a, 'pending')
|
|
session = SessionBase.create_session()
|
|
o = session.query(Nonce).filter(Nonce.address_hex==a).first()
|
|
if o == None:
|
|
o = Nonce()
|
|
o.address_hex = a
|
|
o.nonce = n
|
|
session.add(o)
|
|
session.commit()
|
|
session.close()
|
|
return a
|
|
|
|
|
|
@celery_app.task(bind=True, throws=(RoleMissingError,))
|
|
def register(self, account_address, chain_str, writer_address=None):
|
|
"""Creates a transaction to add the given address to the accounts index.
|
|
|
|
:param account_address: Ethereum address to add
|
|
:type account_address: str, 0x-hex
|
|
:param chain_str: Chain spec string representation
|
|
:type chain_str: str
|
|
:param writer_address: Specify address in keystore to sign transaction. Overrides local accounts role setting.
|
|
:type writer_address: str, 0x-hex
|
|
:raises RoleMissingError: Writer address not set and writer role not found.
|
|
:returns: The account_address input param
|
|
:rtype: str, 0x-hex
|
|
"""
|
|
chain_spec = ChainSpec.from_chain_str(chain_str)
|
|
|
|
if writer_address == None:
|
|
writer_address = AccountRole.get_address('ACCOUNTS_INDEX_WRITER')
|
|
|
|
if writer_address == zero_address:
|
|
raise RoleMissingError(account_address)
|
|
|
|
|
|
logg.debug('adding account address {} to index; writer {}'.format(account_address, writer_address))
|
|
queue = self.request.delivery_info['routing_key']
|
|
|
|
c = RpcClient(chain_spec, holder_address=writer_address)
|
|
txf = AccountTxFactory(writer_address, c)
|
|
|
|
tx_add = txf.add(account_address, chain_spec)
|
|
(tx_hash_hex, tx_signed_raw_hex) = sign_and_register_tx(tx_add, chain_str, queue, 'cic_eth.eth.account.cache_account_data')
|
|
|
|
gas_budget = tx_add['gas'] * tx_add['gasPrice']
|
|
|
|
logg.debug('register user tx {}'.format(tx_hash_hex))
|
|
s = create_check_gas_and_send_task(
|
|
[tx_signed_raw_hex],
|
|
chain_str,
|
|
writer_address,
|
|
gas_budget,
|
|
tx_hashes_hex=[tx_hash_hex],
|
|
queue=queue,
|
|
)
|
|
s.apply_async()
|
|
return account_address
|
|
|
|
|
|
@celery_app.task(bind=True)
|
|
def gift(self, account_address, chain_str):
|
|
"""Creates a transaction to invoke the faucet contract for the given address.
|
|
|
|
:param account_address: Ethereum address to give to
|
|
:type account_address: str, 0x-hex
|
|
:param chain_str: Chain spec string representation
|
|
:type chain_str: str
|
|
:returns: Raw signed transaction
|
|
:rtype: list with transaction as only element
|
|
"""
|
|
chain_spec = ChainSpec.from_chain_str(chain_str)
|
|
|
|
logg.debug('gift account address {} to index'.format(account_address))
|
|
queue = self.request.delivery_info['routing_key']
|
|
|
|
c = RpcClient(chain_spec, holder_address=account_address)
|
|
txf = AccountTxFactory(account_address, c)
|
|
|
|
tx_add = txf.gift(account_address, chain_spec)
|
|
(tx_hash_hex, tx_signed_raw_hex) = sign_and_register_tx(tx_add, chain_str, queue, 'cic_eth.eth.account.cache_gift_data')
|
|
|
|
gas_budget = tx_add['gas'] * tx_add['gasPrice']
|
|
|
|
logg.debug('register user tx {}'.format(tx_hash_hex))
|
|
s = create_check_gas_and_send_task(
|
|
[tx_signed_raw_hex],
|
|
chain_str,
|
|
account_address,
|
|
gas_budget,
|
|
[tx_hash_hex],
|
|
queue=queue,
|
|
)
|
|
s.apply_async()
|
|
return [tx_signed_raw_hex]
|
|
|
|
|
|
@celery_app.task(bind=True)
|
|
def have(self, account, chain_str):
|
|
"""Check whether the given account exists in keystore
|
|
|
|
:param account: Account to check
|
|
:type account: str, 0x-hex
|
|
:param chain_str: Chain spec string representation
|
|
:type chain_str: str
|
|
:returns: Account, or None if not exists
|
|
:rtype: Varies
|
|
"""
|
|
c = RpcClient(account)
|
|
try:
|
|
c.w3.eth.sign(account, text='2a')
|
|
return account
|
|
except Exception as e:
|
|
logg.debug('cannot sign with {}: {}'.format(account, e))
|
|
return None
|
|
|
|
|
|
@celery_app.task(bind=True)
|
|
def role(self, account, chain_str):
|
|
"""Return account role for address
|
|
|
|
:param account: Account to check
|
|
:type account: str, 0x-hex
|
|
:param chain_str: Chain spec string representation
|
|
:type chain_str: str
|
|
:returns: Account, or None if not exists
|
|
:rtype: Varies
|
|
"""
|
|
return AccountRole.role_for(account)
|
|
|
|
|
|
@celery_app.task()
|
|
def cache_gift_data(
|
|
tx_hash_hex,
|
|
tx_signed_raw_hex,
|
|
chain_str,
|
|
):
|
|
"""Generates and commits transaction cache metadata for a Faucet.giveTo transaction
|
|
|
|
:param tx_hash_hex: Transaction hash
|
|
:type tx_hash_hex: str, 0x-hex
|
|
:param tx_signed_raw_hex: Raw signed transaction
|
|
:type tx_signed_raw_hex: str, 0x-hex
|
|
:param chain_str: Chain spec string representation
|
|
:type chain_str: str
|
|
:returns: Transaction hash and id of cache element in storage backend, respectively
|
|
:rtype: tuple
|
|
"""
|
|
chain_spec = ChainSpec.from_chain_str(chain_str)
|
|
c = RpcClient(chain_spec)
|
|
|
|
tx_signed_raw_bytes = bytes.fromhex(tx_signed_raw_hex[2:])
|
|
tx = unpack_signed_raw_tx(tx_signed_raw_bytes, chain_spec.chain_id())
|
|
tx_data = unpack_gift(tx['data'])
|
|
|
|
session = SessionBase.create_session()
|
|
|
|
tx_cache = TxCache(
|
|
tx_hash_hex,
|
|
tx['from'],
|
|
tx['to'],
|
|
zero_address,
|
|
zero_address,
|
|
0,
|
|
0,
|
|
session=session,
|
|
)
|
|
|
|
session.add(tx_cache)
|
|
session.commit()
|
|
cache_id = tx_cache.id
|
|
session.close()
|
|
return (tx_hash_hex, cache_id)
|
|
|
|
|
|
@celery_app.task()
|
|
def cache_account_data(
|
|
tx_hash_hex,
|
|
tx_signed_raw_hex,
|
|
chain_str,
|
|
):
|
|
"""Generates and commits transaction cache metadata for an AccountsIndex.add transaction
|
|
|
|
:param tx_hash_hex: Transaction hash
|
|
:type tx_hash_hex: str, 0x-hex
|
|
:param tx_signed_raw_hex: Raw signed transaction
|
|
:type tx_signed_raw_hex: str, 0x-hex
|
|
:param chain_str: Chain spec string representation
|
|
:type chain_str: str
|
|
:returns: Transaction hash and id of cache element in storage backend, respectively
|
|
:rtype: tuple
|
|
"""
|
|
|
|
chain_spec = ChainSpec.from_chain_str(chain_str)
|
|
c = RpcClient(chain_spec)
|
|
|
|
tx_signed_raw_bytes = bytes.fromhex(tx_signed_raw_hex[2:])
|
|
tx = unpack_signed_raw_tx(tx_signed_raw_bytes, chain_spec.chain_id())
|
|
tx_data = unpack_register(tx['data'])
|
|
|
|
session = SessionBase.create_session()
|
|
tx_cache = TxCache(
|
|
tx_hash_hex,
|
|
tx['from'],
|
|
tx['to'],
|
|
zero_address,
|
|
zero_address,
|
|
0,
|
|
0,
|
|
session=session,
|
|
)
|
|
session.add(tx_cache)
|
|
session.commit()
|
|
cache_id = tx_cache.id
|
|
session.close()
|
|
return (tx_hash_hex, cache_id)
|