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