cic-internal-integration/apps/cic-cache/cic_cache/runnable/daemons/tracker.py

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# standard imports
import os
import sys
import logging
import time
import argparse
import sys
import re
# external imports
import confini
import celery
import sqlalchemy
import rlp
import cic_base.config
import cic_base.log
import cic_base.argparse
import cic_base.rpc
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 import (
HeadSyncer,
HistorySyncer,
)
from chainsyncer.db.models.base import SessionBase
# local imports
from cic_cache.db import (
dsn_from_config,
add_tag,
)
from cic_cache.runnable.daemons.filters import (
ERC20TransferFilter,
FaucetFilter,
)
script_dir = os.path.realpath(os.path.dirname(__file__))
def add_block_args(argparser):
argparser.add_argument('--history-start', type=int, default=0, dest='history_start', help='Start block height for initial history sync')
argparser.add_argument('--no-history', action='store_true', dest='no_history', help='Skip initial history sync')
return argparser
logg = cic_base.log.create()
argparser = cic_base.argparse.create(script_dir, cic_base.argparse.full_template)
argparser = cic_base.argparse.add(argparser, add_block_args, 'block')
args = cic_base.argparse.parse(argparser, logg)
config = cic_base.config.create(args.c, args, args.env_prefix)
config.add(args.history_start, 'SYNCER_HISTORY_START', True)
config.add(args.no_history, '_NO_HISTORY', True)
cic_base.config.log(config)
dsn = dsn_from_config(config)
SessionBase.connect(dsn, debug=config.true('DATABASE_DEBUG'))
chain_spec = ChainSpec.from_chain_str(config.get('CIC_CHAIN_SPEC'))
cic_base.rpc.setup(chain_spec, config.get('ETH_PROVIDER'))
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 = []
#if SQLBackend.first(chain_spec):
# backend = SQLBackend.initial(chain_spec, block_offset)
syncer_backends = SQLBackend.resume(chain_spec, block_offset)
if len(syncer_backends) == 0:
initial_block_start = config.get('SYNCER_HISTORY_START')
initial_block_offset = block_offset
if config.get('_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))
syncer_backend = SQLBackend.live(chain_spec, block_offset+1)
syncers.append(HeadSyncer(syncer_backend))
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()