cic-internal-integration/apps/cic-cache/cic_cache/runnable/daemons/tracker.py
2021-10-16 08:23:32 +02:00

148 lines
4.6 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 os
import sys
import logging
import time
import argparse
import sys
import re
# external imports
import sqlalchemy
from cic_eth_registry import CICRegistry
from cic_eth_registry.error import UnknownContractError
from chainlib.chain import ChainSpec
from chainlib.eth.constant import ZERO_ADDRESS
from chainlib.connection import RPCConnection
from chainlib.eth.block import (
block_latest,
)
from hexathon import (
strip_0x,
)
from chainsyncer.backend.sql import SQLBackend
from chainsyncer.driver.head import HeadSyncer
from chainsyncer.driver.history import HistorySyncer
from chainsyncer.db.models.base import SessionBase
# local imports
import cic_cache.cli
from cic_cache.db import (
dsn_from_config,
add_tag,
)
from cic_cache.runnable.daemons.filters import (
ERC20TransferFilter,
FaucetFilter,
)
logging.basicConfig(level=logging.WARNING)
logg = logging.getLogger()
# process args
arg_flags = cic_cache.cli.argflag_std_base
local_arg_flags = cic_cache.cli.argflag_local_sync
argparser = cic_cache.cli.ArgumentParser(arg_flags)
argparser.process_local_flags(local_arg_flags)
args = argparser.parse_args()
# process config
config = cic_cache.cli.Config.from_args(args, arg_flags, local_arg_flags)
# connect to database
dsn = dsn_from_config(config)
SessionBase.connect(dsn, debug=config.true('DATABASE_DEBUG'))
# set up rpc
rpc = cic_cache.cli.RPC.from_config(config)
conn = rpc.get_default()
# set up chain provisions
chain_spec = ChainSpec.from_chain_str(config.get('CHAIN_SPEC'))
registry = None
try:
registry = cic_cache.cli.connect_registry(conn, chain_spec, config.get('CIC_REGISTRY_ADDRESS'))
except UnknownContractError as e:
logg.exception('Registry contract connection failed for {}: {}'.format(config.get('CIC_REGISTRY_ADDRESS'), e))
sys.exit(1)
logg.info('connected contract registry {}'.format(config.get('CIC_REGISTRY_ADDRESS')))
def register_filter_tags(filters, session):
for f in filters:
tag = f.tag()
try:
add_tag(session, tag[0], domain=tag[1])
session.commit()
logg.info('added tag name "{}" domain "{}"'.format(tag[0], tag[1]))
except sqlalchemy.exc.IntegrityError:
session.rollback()
logg.debug('already have tag name "{}" domain "{}"'.format(tag[0], tag[1]))
def main():
# Connect to blockchain with chainlib
rpc = RPCConnection.connect(chain_spec, 'default')
o = block_latest()
r = rpc.do(o)
block_offset = int(strip_0x(r), 16) + 1
logg.debug('current block height {}'.format(block_offset))
syncers = []
syncer_backends = SQLBackend.resume(chain_spec, block_offset)
if len(syncer_backends) == 0:
initial_block_start = config.get('SYNCER_OFFSET')
initial_block_offset = block_offset
if config.get('SYNCER_NO_HISTORY'):
initial_block_start = block_offset
initial_block_offset += 1
syncer_backends.append(SQLBackend.initial(chain_spec, initial_block_offset, start_block_height=initial_block_start))
logg.info('found no backends to resume, adding initial sync from history start {} end {}'.format(initial_block_start, initial_block_offset))
else:
for syncer_backend in syncer_backends:
logg.info('resuming sync session {}'.format(syncer_backend))
for syncer_backend in syncer_backends:
syncers.append(HistorySyncer(syncer_backend, cic_cache.cli.chain_interface))
syncer_backend = SQLBackend.live(chain_spec, block_offset+1)
syncers.append(HeadSyncer(syncer_backend, cic_cache.cli.chain_interface))
trusted_addresses_src = config.get('CIC_TRUST_ADDRESS')
if trusted_addresses_src == None:
logg.critical('At least one trusted address must be declared in CIC_TRUST_ADDRESS')
sys.exit(1)
trusted_addresses = trusted_addresses_src.split(',')
for address in trusted_addresses:
logg.info('using trusted address {}'.format(address))
erc20_transfer_filter = ERC20TransferFilter(chain_spec)
faucet_filter = FaucetFilter(chain_spec)
filters = [
erc20_transfer_filter,
faucet_filter,
]
session = SessionBase.create_session()
register_filter_tags(filters, session)
session.close()
i = 0
for syncer in syncers:
logg.debug('running syncer index {}'.format(i))
for f in filters:
syncer.add_filter(f)
r = syncer.loop(int(config.get('SYNCER_LOOP_INTERVAL')), rpc)
sys.stderr.write("sync {} done at block {}\n".format(syncer, r))
i += 1
if __name__ == '__main__':
main()