195 lines
6.8 KiB
Python
195 lines
6.8 KiB
Python
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# standard imports
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import logging
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import importlib
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import os
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# external imports
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from chainlib.chain import ChainSpec
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from chainlib.eth.address import is_checksum_address
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from chainlib.eth.block import block_latest
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from cic_eth.registry import (
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connect as connect_registry,
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connect_declarator,
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connect_token_registry,
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)
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from cic_eth.db import dsn_from_config
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from cic_eth.db.models.base import SessionBase
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from cic_eth_registry.error import UnknownContractError
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import cic_eth.cli
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from hexathon import (
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to_int as hex_to_int,
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strip_0x,
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)
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from cic_eth_registry import CICRegistry
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# local imports
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from cic_tracker.chain import EthChainInterface
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from cic_tracker.callback import (
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state_change_callback,
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filter_change_callback,
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)
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logg = logging.getLogger(__name__)
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class CICTrackerSettings:
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def __init__(self):
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self.o = {}
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self.registry = None
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self.get = self.o.get
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def process_common(self, config):
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self.o['CHAIN_SPEC'] = ChainSpec.from_chain_str(config.get('CHAIN_SPEC'))
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rpc = cic_eth.cli.RPC.from_config(config)
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self.o['RPC'] = rpc.get_default()
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def process_celery(self, config):
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cic_eth.cli.CeleryApp.from_config(config)
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def process_database(self, config):
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dsn = dsn_from_config(config)
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SessionBase.connect(dsn, pool_size=16, debug=config.true('DATABASE_DEBUG'))
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def process_trusted_addresses(self, config):
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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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raise InitializationError('At least one trusted address must be declared in CIC_TRUST_ADDRESS')
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trusted_addresses = trusted_addresses_src.split(',')
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for i, address in enumerate(trusted_addresses):
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if not config.get('_UNSAFE'):
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if not is_checksum_address(address):
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raise ValueError('address {} at position {} is not a valid checksum address'.format(address, i))
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else:
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trusted_addresses[i] = to_checksum_address(address)
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logg.info('using trusted address {}'.format(address))
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self.o['TRUSTED_ADDRESSES'] = trusted_addresses
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def process_registry(self, config):
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registry = None
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try:
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registry = connect_registry(self.o['RPC'], self.o['CHAIN_SPEC'], config.get('CIC_REGISTRY_ADDRESS'))
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except UnknownContractError as e:
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pass
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if registry == None:
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raise InitializationError('Registry contract connection failed for {}: {}'.format(config.get('CIC_REGISTRY_ADDRESS'), e))
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connect_declarator(self.o['RPC'], self.o['CHAIN_SPEC'], self.o['TRUSTED_ADDRESSES'])
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connect_token_registry(self.o['RPC'], self.o['CHAIN_SPEC'])
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self.o['CIC_REGISTRY'] = CICRegistry(self.o['CHAIN_SPEC'], self.o['RPC'])
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def process_callback_filters(self, config):
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self.o['CALLBACK_FILTERS'] = []
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for cb in config.get('TASKS_TRANSFER_CALLBACKS', '').split(','):
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task_split = cb.split(':')
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if len(task_split) > 1:
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task_queue = task_split[0]
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callback_filter = CallbackFilter(chain_spec, task_split[1], task_queue)
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self.o['CALLBACK_FILTERS'].append(callback_filter)
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def process_sync_interface(self, config):
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self.o['SYNC_INTERFACE'] = EthChainInterface()
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def process_sync_range(self, config):
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o = block_latest()
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r = self.o['RPC'].do(o)
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block_offset = int(strip_0x(r), 16) + 1
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logg.info('network block height at startup is {}'.format(block_offset))
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keep_alive = False
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session_block_offset = 0
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block_limit = 0
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session_block_offset = int(config.get('SYNC_OFFSET'))
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until = int(config.get('_UNTIL'))
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if until > 0:
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if until <= session_block_offset:
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raise ValueError('sync termination block number must be later than offset ({} >= {})'.format(session_block_offset, until))
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block_limit = until
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else:
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keep_alive=True
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block_limit = -1
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if session_block_offset == -1:
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session_block_offset = block_offset
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elif not config.true('_KEEP_ALIVE'):
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if block_limit == 0:
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lock_limit = block_offset
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self.o['SYNC_OFFSET'] = session_block_offset
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self.o['SYNC_LIMIT'] = block_limit
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def process_sync_store(self, config):
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syncer_store_module = None
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syncer_store_class = None
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if config.get('SYNC_BACKEND') == 'fs':
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syncer_store_module = importlib.import_module('chainsyncer.store.fs')
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syncer_store_class = getattr(syncer_store_module, 'SyncFsStore')
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elif config.get('SYNC_BACKEND') == 'rocksdb':
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syncer_store_module = importlib.import_module('chainsyncer.store.rocksdb')
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syncer_store_class = getattr(syncer_store_module, 'SyncRocksDbStore')
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else:
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syncer_store_module = importlib.import_module(config.get('SYNC_BACKEND'))
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syncer_store_class = getattr(syncer_store_module, 'SyncStore')
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logg.info('using engine {} module {}.{}'.format(config.get('SYNC_BACKEND'), syncer_store_module.__file__, syncer_store_class.__name__))
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state_dir = os.path.join(config.get('SYNC_DIR'), config.get('SYNC_BACKEND'))
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sync_store = syncer_store_class(state_dir, session_id=config.get('SYNC_SESSION_ID'), state_event_callback=state_change_callback, filter_state_event_callback=filter_change_callback)
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logg.info('sync session is {}'.format(sync_store.session_id))
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self.o['SYNC_STORE'] = sync_store
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def process_sync_filters(self, config):
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for v in config.get('SYNC_FILTER').split(','):
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logg.debug('processing filter {}'.format(v))
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(path, cls) = v.rsplit('.', maxsplit=1)
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m = importlib.import_module(path)
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o = getattr(m, cls)
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m = o(self.o['CHAIN_SPEC'], self.o['CIC_REGISTRY'], config.get('CELERY_QUEUE'))
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if v == 'cic_syncer.filter.callback.CallbackFilter':
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m.set_method()
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o.trusted_addresses = trusted_addresses
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self.o['SYNC_STORE'].register(m)
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def process_sync(self, config):
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self.process_sync_range(config)
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self.process_sync_interface(config)
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self.process_sync_store(config)
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self.process_sync_filters(config)
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def process(self, config):
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self.process_common(config)
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self.process_celery(config)
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self.process_database(config)
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self.process_trusted_addresses(config)
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self.process_registry(config)
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self.process_sync(config)
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def __str__(self):
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ks = list(self.o.keys())
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ks.sort()
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s = ''
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for k in ks:
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s += '{}: {}\n'.format(k, self.o.get(k))
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return s
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