cic-internal-integration/apps/cic-cache/cic_cache/runnable/tracker.py
2021-02-18 05:04:30 +00:00

340 lines
12 KiB
Python
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

# standard imports
import sys
import os
import argparse
import logging
import time
import enum
import re
# third-party imports
import confini
from cic_registry import CICRegistry
from cic_registry.chain import (
ChainRegistry,
ChainSpec,
)
#from cic_registry.bancor import BancorRegistryClient
from cic_registry.token import Token
from cic_registry.error import (
UnknownContractError,
UnknownDeclarationError,
)
from cic_registry.declaration import to_token_declaration
from web3.exceptions import BlockNotFound, TransactionNotFound
from websockets.exceptions import ConnectionClosedError
from requests.exceptions import ConnectionError
import web3
from web3 import HTTPProvider, WebsocketProvider
# local imports
from cic_cache import db
from cic_cache.db.models.base import SessionBase
logging.basicConfig(level=logging.WARNING)
logg = logging.getLogger()
logging.getLogger('websockets.protocol').setLevel(logging.CRITICAL)
logging.getLogger('urllib3').setLevel(logging.CRITICAL)
logging.getLogger('web3.RequestManager').setLevel(logging.CRITICAL)
logging.getLogger('web3.providers.WebsocketProvider').setLevel(logging.CRITICAL)
logging.getLogger('web3.providers.HTTPProvider').setLevel(logging.CRITICAL)
log_topics = {
'transfer': '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
'convert': '0x7154b38b5dd31bb3122436a96d4e09aba5b323ae1fd580025fab55074334c095',
'accountregistry_add': '0a3b0a4f4c6e53dce3dbcad5614cb2ba3a0fa7326d03c5d64b4fa2d565492737',
}
config_dir = os.path.join('/usr/local/etc/cic-cache')
argparser = argparse.ArgumentParser(description='daemon that monitors transactions in new blocks')
argparser.add_argument('-c', type=str, default=config_dir, help='config root to use')
argparser.add_argument('-i', '--chain-spec', type=str, dest='i', help='chain spec')
argparser.add_argument('--trust-address', default=[], type=str, dest='trust_address', action='append', help='Set address as trust')
argparser.add_argument('--env-prefix', default=os.environ.get('CONFINI_ENV_PREFIX'), dest='env_prefix', type=str, help='environment prefix for variables to overwrite configuration')
argparser.add_argument('--abi-dir', dest='abi_dir', type=str, help='Directory containing bytecode and abi')
argparser.add_argument('-v', help='be verbose', action='store_true')
argparser.add_argument('-vv', help='be more verbose', action='store_true')
args = argparser.parse_args(sys.argv[1:])
config_dir = os.path.join(args.c)
os.makedirs(config_dir, 0o777, True)
if args.v == True:
logging.getLogger().setLevel(logging.INFO)
elif args.vv == True:
logging.getLogger().setLevel(logging.DEBUG)
config = confini.Config(config_dir, args.env_prefix)
config.process()
args_override = {
'ETH_ABI_DIR': getattr(args, 'abi_dir'),
'CIC_TRUST_ADDRESS': ",".join(getattr(args, 'trust_address', [])),
}
config.dict_override(args_override, 'cli flag')
config.censor('PASSWORD', 'DATABASE')
config.censor('PASSWORD', 'SSL')
logg.debug('config loaded from {}:\n{}'.format(config_dir, config))
# connect to database
dsn = db.dsn_from_config(config)
SessionBase.connect(dsn)
re_websocket = re.compile('^wss?://')
re_http = re.compile('^https?://')
blockchain_provider = config.get('ETH_PROVIDER')
if re.match(re_websocket, blockchain_provider) != None:
blockchain_provider = WebsocketProvider(blockchain_provider)
elif re.match(re_http, blockchain_provider) != None:
blockchain_provider = HTTPProvider(blockchain_provider)
else:
raise ValueError('unknown provider url {}'.format(blockchain_provider))
def web3_constructor():
w3 = web3.Web3(blockchain_provider)
return (blockchain_provider, w3)
class RunStateEnum(enum.IntEnum):
INIT = 0
RUN = 1
TERMINATE = 9
def rubberstamp(src):
return True
class Tracker:
def __init__(self, chain_spec, trusts=[]):
self.block_height = 0
self.tx_height = 0
self.state = RunStateEnum.INIT
self.declarator_cache = {}
self.convert_enabled = False
self.trusts = trusts
self.chain_spec = chain_spec
self.declarator = CICRegistry.get_contract(chain_spec, 'AddressDeclarator', 'Declarator')
def __process_tx(self, w3, session, t, r, l, b):
token_value = int(l.data, 16)
token_sender = l.topics[1][-20:].hex()
token_recipient = l.topics[2][-20:].hex()
#ts = ContractRegistry.get_address(t.address)
ts = CICRegistry.get_address(self.chain_spec, t.address())
logg.info('add token transfer {} value {} from {} to {}'.format(
ts.symbol(),
token_value,
token_sender,
token_recipient,
)
)
db.add_transaction(
session,
r.transactionHash.hex(),
r.blockNumber,
r.transactionIndex,
w3.toChecksumAddress(token_sender),
w3.toChecksumAddress(token_recipient),
t.address(),
t.address(),
token_value,
token_value,
r.status == 1,
b.timestamp,
)
session.flush()
# TODO: simplify/ split up and/or comment, function is too long
def __process_convert(self, w3, session, t, r, l, b):
logg.warning('conversions are deactivated')
return
# token_source = l.topics[2][-20:].hex()
# token_source = w3.toChecksumAddress(token_source)
# token_destination = l.topics[3][-20:].hex()
# token_destination = w3.toChecksumAddress(token_destination)
# data_noox = l.data[2:]
# d = data_noox[:64]
# token_from_value = int(d, 16)
# d = data_noox[64:128]
# token_to_value = int(d, 16)
# token_trader = '0x' + data_noox[192-40:]
#
# #ts = ContractRegistry.get_address(token_source)
# ts = CICRegistry.get_address(CICRegistry.bancor_chain_spec, t.address())
# #if ts == None:
# # ts = ContractRegistry.reserves[token_source]
# td = ContractRegistry.get_address(token_destination)
# #if td == None:
# # td = ContractRegistry.reserves[token_source]
# logg.info('add token convert {} -> {} value {} -> {} trader {}'.format(
# ts.symbol(),
# td.symbol(),
# token_from_value,
# token_to_value,
# token_trader,
# )
# )
#
# db.add_transaction(
# session,
# r.transactionHash.hex(),
# r.blockNumber,
# r.transactionIndex,
# w3.toChecksumAddress(token_trader),
# w3.toChecksumAddress(token_trader),
# token_source,
# token_destination,
# r.status == 1,
# b.timestamp,
# )
# session.flush()
def check_token(self, address):
t = None
try:
t = CICRegistry.get_address(CICRegistry.default_chain_spec, address)
return t
except UnknownContractError:
logg.debug('contract {} not in registry'.format(address))
# If nothing was returned, we look up the token in the declarator
for trust in self.trusts:
logg.debug('look up declaration for contract {} with trust {}'.format(address, trust))
fn = self.declarator.function('declaration')
# TODO: cache trust in LRUcache
declaration_array = fn(trust, address).call()
try:
declaration = to_token_declaration(trust, address, declaration_array, [rubberstamp])
logg.debug('found declaration for token {} from trust address {}'.format(address, trust))
except UnknownDeclarationError:
continue
try:
c = w3.eth.contract(abi=CICRegistry.abi('ERC20'), address=address)
t = CICRegistry.add_token(self.chain_spec, c)
break
except ValueError:
logg.error('declaration for {} validates as token, but location is not ERC20 compatible'.format(address))
return t
# TODO use input data instead of logs
def process(self, w3, session, block):
#self.refresh_registry(w3)
tx_count = w3.eth.getBlockTransactionCount(block.hash)
b = w3.eth.getBlock(block.hash)
for i in range(self.tx_height, tx_count):
tx = w3.eth.getTransactionByBlock(block.hash, i)
if tx.to == None:
logg.debug('block {} tx {} is contract creation tx, skipping'.format(block.number, i))
continue
if len(w3.eth.getCode(tx.to)) == 0:
logg.debug('block {} tx {} not a contract tx, skipping'.format(block.number, i))
continue
t = self.check_token(tx.to)
if t != None and isinstance(t, Token):
r = w3.eth.getTransactionReceipt(tx.hash)
for l in r.logs:
logg.debug('block {} tx {} {} token log {} {}'.format(block.number, i, tx.hash.hex(), l.logIndex, l.topics[0].hex()))
if l.topics[0].hex() == log_topics['transfer']:
self.__process_tx(w3, session, t, r, l, b)
# TODO: cache contracts in LRUcache
elif self.convert_enabled and tx.to == CICRegistry.get_contract(CICRegistry.default_chain_spec, 'Converter').address:
r = w3.eth.getTransactionReceipt(tx.hash)
for l in r.logs:
logg.info('block {} tx {} {} bancornetwork log {} {}'.format(block.number, i, tx.hash.hex(), l.logIndex, l.topics[0].hex()))
if l.topics[0].hex() == log_topics['convert']:
self.__process_convert(w3, session, t, r, l, b)
session.execute("UPDATE tx_sync SET tx = '{}'".format(tx.hash.hex()))
session.commit()
self.tx_height += 1
def __get_next_retry(self, backoff=False):
return 1
def loop(self):
logg.info('starting at block {} tx index {}'.format(self.block_height, self.tx_height))
self.state = RunStateEnum.RUN
while self.state == RunStateEnum.RUN:
(provider, w3) = web3_constructor()
session = SessionBase.create_session()
try:
block = w3.eth.getBlock(self.block_height)
self.process(w3, session, block)
self.block_height += 1
self.tx_height = 0
except BlockNotFound as e:
logg.debug('no block {} yet, zZzZ...'.format(self.block_height))
time.sleep(self.__get_next_retry())
except ConnectionClosedError as e:
logg.info('connection gone, retrying')
time.sleep(self.__get_next_retry(True))
except OSError as e:
logg.error('cannot connect {}'.format(e))
time.sleep(self.__get_next_retry(True))
except Exception as e:
session.close()
raise(e)
session.close()
def load(self, w3):
session = SessionBase.create_session()
r = session.execute('SELECT tx FROM tx_sync').first()
if r != None:
if r[0] == '0x{0:0{1}X}'.format(0, 64):
logg.debug('last tx was zero-address, starting from scratch')
return
t = w3.eth.getTransaction(r[0])
self.block_height = t.blockNumber
self.tx_height = t.transactionIndex+1
c = w3.eth.getBlockTransactionCount(t.blockHash.hex())
logg.debug('last tx processed {} index {} (max index {})'.format(t.blockNumber, t.transactionIndex, c-1))
if c == self.tx_height:
self.block_height += 1
self.tx_height = 0
session.close()
(provider, w3) = web3_constructor()
trust = config.get('CIC_TRUST_ADDRESS', []).split(",")
chain_spec = args.i
try:
w3.eth.chainId
except Exception as e:
logg.exception(e)
sys.stderr.write('cannot connect to evm node\n')
sys.exit(1)
def main():
chain_spec = ChainSpec.from_chain_str(config.get('CIC_CHAIN_SPEC'))
CICRegistry.init(w3, config.get('CIC_REGISTRY_ADDRESS'), chain_spec)
CICRegistry.add_path(config.get('ETH_ABI_DIR'))
chain_registry = ChainRegistry(chain_spec)
CICRegistry.add_chain_registry(chain_registry)
t = Tracker(chain_spec, trust)
t.load(w3)
t.loop()
if __name__ == '__main__':
main()